From 06b3c382f3c4077dd818adbe09de1415c5e01bec Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 7 Aug 2018 05:02:13 +0200
Subject: [PATCH 001/178] DemoGuiRoundtrip: expand on that idea (#1099) and
 start analysis how to create that UI component

The goal is to build a (in itself completely meaningless) ping-pong interaction
between the UI and Proc-Layer, for the purpose of driving the integration ahead.

The immediate challenge is how to create and place an apropriate "GuiComponentView",
i.e. a Tangible, which is connected to the UI-Bus with an predictable EntryID.
And the problem is to get that settled right now, without building the envisioned
generic framework for View allocation in the UI. When this is achieved,
it should be a rather small step to actually send those notifications over
the UI-Bus, which is basically implemented and ready by now.
---
 src/gui/interact/interaction-director.cpp |    5 +
 src/gui/model/tangible.hpp                |    2 +-
 src/gui/widget/error-log-widget.hpp       |    2 +-
 wiki/renderengine.html                    |   24 +-
 wiki/thinkPad.ichthyo.mm                  | 1553 +++++++++++----------
 5 files changed, 852 insertions(+), 734 deletions(-)

diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index 01e083c10..644fe1981 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -109,6 +109,11 @@ namespace interact {
   void
   InteractionDirector::populateContent_afterStart()
     {
+      ///////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 trigger creation of the UI notification display here
+      //// TODO : this clearly is a preliminary solution. Later it might be possible,
+      ////      : to create the notification display on demand. But right now (8/2018)
+      ////      : we need a GuiComponentView with predictable ID instructed to exist "somewhere"
+      ////
       invoke (cmd::test_meta_activateContentDiff);               ////////////////////////////////////////////TICKET #211 prefix test_ bypasses logging and immediately executes for now (2018)
     }
   
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index fcaf2f1f9..393ba06b7 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -222,7 +222,7 @@ namespace model {
       
       
       /** override default size traits for diff application.
-       * @remarks this value here is hard coded, base on what
+       * @remarks this value here is hard coded, based on what
        *  can be expected for diff application to UI elements.
        */
       friend constexpr size_t
diff --git a/src/gui/widget/error-log-widget.hpp b/src/gui/widget/error-log-widget.hpp
index 4533e8add..4eebcfe7b 100644
--- a/src/gui/widget/error-log-widget.hpp
+++ b/src/gui/widget/error-log-widget.hpp
@@ -22,7 +22,7 @@
 
 
 /** @file error-log-widget.hpp
- ** Widget to display error messages to the use in non-modal way.
+ ** Widget to display error messages to be accessible in non-modal way.
  ** Notifications are shown in a simple text window with scrollbars; new
  ** entries can be added with a severity level, causing the widget to scroll
  ** down to the last line of the content buffer.
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 44dd1a5e5..7d269fbe5 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2906,14 +2906,14 @@ Command instances are like prototypes -- thus each additional level of different
 see the description in &amp;rarr; CommandSetup
 </pre>
 </div>
-<div title="GuiComponentView" creator="Ichthyostega" modifier="Ichthyostega" created="201709021521" modified="201804150106" tags="def GuiPattern design" changecount="56">
+<div title="GuiComponentView" creator="Ichthyostega" modifier="Ichthyostega" created="201709021521" modified="201808070208" tags="def GuiPattern design" changecount="57">
 <pre>//A view within the UI, featuring some component of relevance to »the model«.//
 While any UI is comprised of numerous widgets acting as //view of something,// only some of those views play the prominent role to act as //building block component// of the user interface.
 Such UI component views exhibit some substantial traits
 * they conform to a built-in fixed list of view types, each of which is unique and dedicated to a very specific purpose: //''Timeline'', ''Viewer'', (Asset)''Bin'', ''Infobox'', ''Playcontrol'',...//
 * each component view has a distinguishable identity and is connected to and addressable through the UI-Bus
 * it can be hosted only at a dedicated location within one or several specific [[docking panels|GuiDockingPanel]].
-* multiplicity (one, one per window, many) depends on the type of view and needs to be managed.
+* multiplicity (only one, one per window, many) depends on the type of view and needs to be managed.
 * such a view is not just //created// -- rather it needs to be //allocated//
 
 !Allocation of UI component views
@@ -3186,7 +3186,7 @@ In order to build a sensible plan for our timeline structure, we need to investi
 }}}
 </pre>
 </div>
-<div title="GuiDockingPanel" creator="Ichthyostega" modifier="Ichthyostega" created="201708311617" modified="201806171308" tags="design GuiPattern draft" changecount="10">
+<div title="GuiDockingPanel" creator="Ichthyostega" modifier="Ichthyostega" created="201708311617" modified="201808070252" tags="design GuiPattern draft" changecount="11">
 <pre>//Management of dockable content panes//
 Within each top level application window, the usable screen real estate can be split and arranged into a number of standard view building blocks. Each of this //panels// follows a specific preconfigured basic layout -- these are hard coded, yet customisable in detail. There is a finite list of such panel types available:
 * the [[timeline display|GuiTimelineView]]
@@ -3197,6 +3197,20 @@ Within the preconfigured layout it is a panel's role to host and incorporate Gui
 Please note the distinction between UI component view and panel; in many cases there is one of each for a given kind, and these need to be distinguished: e.g. there is the [[timeline view|GuiTimelineView]] and there is the timeline panel, which houses several timelines (as tabs). Or there is the viewer component, which is located within a dedicated viewer panel each.
 
 !Instantiation
+A panel as such is //an identifiable, named, delineated space within the UI.//
+* since it is just a space, instantiation of any panel //implies the creation of its content// -- at least in minimal or default form.
+* the type of the panel determines, what the possible content of such a panel might be, and what need to be created to allow the panel to exist.
+Consequently, there are two distinct ways to instantiate a panel
+;by view allocation
+:some process or action requires a specific GuiComponentView, and requests access or allocation through the ViewLocator.
+:in this case, the panel holding this view is created on demand as a by-product
+;by explicit setup
+:initiated through user interaction, or caused by default wiring, a certain panel is made to exist somewhere in the UI
+:in this case, the type of the panel determines what content view(s) need to be present to allow the panel to exist
+
+!!!requirements and consequences for panel instantiation
+Based on these considerations, and based on the fact that any GuiComponentView needs an ID and an UI-Bus connection, we can conclude that the actual panel creation need to be carried out by some core component directly related to the GuiTopLevel (to get UI-Bus access). And we need to ensure that the ID of any created or allocated view is //predictable,// since other parts need to be able to talk to this component via the bus, without any direct way to discover and retrieve the ID beforehand.
+
 !Placing and addressing of embedded contents
 A specific problem arises insofar other parts of the UI need to create, address and control some UI entities, which at the same time exist as part of a docking panel. This is a problem of crosscutting concerns: UI control and interaction structure should not be mingled with the generic concern to maintain a component as part of a screen layout. Unfortunately, the design of standard UI toolkit sets is incredibly naive when it comes to interaction design, and the only available alternative is to rely on frameworks, which come with a hard-wired philosophy.
 As a result, we're forced to build our UI from components which fall short on the distinction between //ownership and control.//
@@ -3346,9 +3360,9 @@ The most fundamental principle is that of ''subsidiarity'': we understand both &
 Based on these foundations, we shape and form the core part of the interface, which is the [[timeline display|GuiTimelineView]]
 </pre>
 </div>
-<div title="GuiStart" modifier="Ichthyostega" created="200812050525" modified="201807141734" tags="GuiIntegration GuiPattern" changecount="8">
+<div title="GuiStart" modifier="Ichthyostega" created="200812050525" modified="201808070201" tags="GuiIntegration GuiPattern" changecount="9">
 <pre>Starting up the GUI is optional and is considered part of the Application start/stop and lifecycle.
-* main and AppState activate the lifecyle methods on the ~GuiSubsysDescriptor, accessible via the GuiFacade
+* main and {{{lumiera::AppState}}} activate the lifecyle methods on the ~GuiSubsysDescriptor, accessible via the GuiFacade
 * loading a GuiStarterPlugin actually
 ** loads the GUI (shared lib)
 ** creates instances of all the GUI services available through LayerSeparationInterfaces
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 2b3483a50..59bc81953 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -345,7 +345,7 @@
 </node>
 <node CREATED="1484797483865" ID="ID_159090609" MODIFIED="1518487921042" TEXT="GuiThread (==runGUI())">
 <node CREATED="1484797502462" ID="ID_21819368" MODIFIED="1518487921042" TEXT="erzeugt GtkLumiera"/>
-<node CREATED="1484797512341" FOLDED="true" ID="ID_57994807" MODIFIED="1531584014110" TEXT="ruft darauf run()">
+<node CREATED="1484797512341" ID="ID_57994807" MODIFIED="1533608413510" TEXT="ruft darauf run()">
 <node CREATED="1501854771820" ID="ID_1849270384" MODIFIED="1518487921042" TEXT="erzeugt UI-Backbone">
 <arrowlink COLOR="#577ca7" DESTINATION="ID_1734603717" ENDARROW="Default" ENDINCLINATION="-18;-71;" ID="Arrow_ID_1972220174" STARTARROW="None" STARTINCLINATION="-130;2;"/>
 </node>
@@ -357,11 +357,11 @@
 <node CREATED="1484797543593" HGAP="-5" ID="ID_143907787" MODIFIED="1518487921042" TEXT="erzeugt UiBus" VSHIFT="-19">
 <arrowlink COLOR="#74869a" DESTINATION="ID_1916035717" ENDARROW="Default" ENDINCLINATION="-84;2;" ID="Arrow_ID_355694260" STARTARROW="None" STARTINCLINATION="0;49;"/>
 </node>
-<node CREATED="1501855022131" FOLDED="true" ID="ID_1152163957" MODIFIED="1531584014111" TEXT="erzeugt UiManager">
+<node CREATED="1501855022131" ID="ID_1152163957" MODIFIED="1533608413511" TEXT="erzeugt UiManager">
 <node CREATED="1501855161616" ID="ID_1916035717" MODIFIED="1518487921042" TEXT="verdrahtet mit UiBus">
 <linktarget COLOR="#74869a" DESTINATION="ID_1916035717" ENDARROW="Default" ENDINCLINATION="-84;2;" ID="Arrow_ID_355694260" SOURCE="ID_143907787" STARTARROW="None" STARTINCLINATION="0;49;"/>
 </node>
-<node CREATED="1501855107127" FOLDED="true" ID="ID_135398487" MODIFIED="1525124216338" TEXT="erzeugt GlobalCtx">
+<node CREATED="1501855107127" FOLDED="true" ID="ID_135398487" MODIFIED="1533608416103" TEXT="erzeugt GlobalCtx">
 <node CREATED="1501855278529" ID="ID_1800772710" MODIFIED="1518487921042" TEXT="UiBus&amp;"/>
 <node CREATED="1501855278529" ID="ID_146051630" MODIFIED="1518487921042" TEXT="UiManager&amp;"/>
 <node CREATED="1501855278529" ID="ID_217835618" MODIFIED="1518487921042" TEXT="WindowLocator"/>
@@ -371,13 +371,13 @@
 <node CREATED="1501855218496" ID="ID_958941481" MODIFIED="1518487921042" TEXT="bindet Men&#xfc;-Actions"/>
 </node>
 <node CREATED="1501855040016" ID="ID_1016475327" MODIFIED="1518487921043" TEXT="erstellt Hautpfenster"/>
-<node CREATED="1501855050087" FOLDED="true" ID="ID_1167747758" MODIFIED="1531584014111" TEXT="startet Event-Loop">
+<node CREATED="1501855050087" ID="ID_1167747758" MODIFIED="1533608413512" TEXT="startet Event-Loop">
 <node CREATED="1501855083654" ID="ID_207237338" MODIFIED="1518487921043" TEXT="uiManager.performMainLoop()"/>
 <node CREATED="1484797557383" ID="ID_637078214" MODIFIED="1518487921043" TEXT="Gtk-Kit::run()"/>
 </node>
 </node>
 <node CREATED="1484797573701" ID="ID_162958920" MODIFIED="1518487921043" TEXT="UiBus">
-<node CREATED="1484797576972" FOLDED="true" ID="ID_1159570219" MODIFIED="1531584014112" TEXT="erzeugt CoreService">
+<node CREATED="1484797576972" ID="ID_1159570219" MODIFIED="1533608413513" TEXT="erzeugt CoreService">
 <node CREATED="1484871312594" ID="ID_1351400025" MODIFIED="1518487921043" TEXT="erbt zwar von BusTerm"/>
 <node CREATED="1484871321473" ID="ID_112216780" MODIFIED="1518487921043" TEXT="hat aber keine connection">
 <richcontent TYPE="NOTE"><html>
@@ -415,7 +415,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1484797584483" FOLDED="true" ID="ID_1316050570" MODIFIED="1525124216338" TEXT="dieser hat Member ">
+<node CREATED="1484797584483" FOLDED="true" ID="ID_1316050570" MODIFIED="1533608416104" TEXT="dieser hat Member ">
 <node CREATED="1484797623574" ID="ID_1754670675" MODIFIED="1518487921043" TEXT="Nexus"/>
 <node CREATED="1484797620495" ID="ID_1710248767" MODIFIED="1518487921043" TEXT="GuiNotificationService"/>
 </node>
@@ -448,7 +448,7 @@
 <node COLOR="#3f9476" CREATED="1501857391335" ID="ID_1248703286" MODIFIED="1518487921043" TEXT="nicht weiter synchronisiert">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
-<node CREATED="1501857518526" FOLDED="true" ID="ID_837968815" MODIFIED="1531584014112" TEXT="Ende runGUI">
+<node CREATED="1501857518526" ID="ID_837968815" MODIFIED="1533608413514" TEXT="Ende runGUI">
 <node CREATED="1501857542075" ID="ID_767030758" MODIFIED="1518487921044" TEXT="aktiviert Term-Signal"/>
 <node CREATED="1501857548922" ID="ID_1335129961" MODIFIED="1518487921044" TEXT="Lock auf GuiSubsysDescriptor">
 <arrowlink COLOR="#4fa071" DESTINATION="ID_907543967" ENDARROW="Default" ENDINCLINATION="191;11;" ID="Arrow_ID_249160033" STARTARROW="None" STARTINCLINATION="134;-11;"/>
@@ -483,7 +483,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1501857705277" FOLDED="true" ID="ID_1642619932" MODIFIED="1531584014113" TEXT="zuverl&#xe4;ssig">
+<node CREATED="1501857705277" ID="ID_1642619932" MODIFIED="1533608413514" TEXT="zuverl&#xe4;ssig">
 <icon BUILTIN="idea"/>
 <node CREATED="1501857709325" ID="ID_1889612043" MODIFIED="1518487921044" TEXT="entweder Start geht durch"/>
 <node CREATED="1501857714988" ID="ID_158695659" MODIFIED="1518487921044" TEXT="oder scheitert und aktiviert Term-Signal"/>
@@ -492,7 +492,7 @@
 <node CREATED="1501857864240" ID="ID_1721447002" MODIFIED="1518487921044" TEXT="UI-Bus">
 <node CREATED="1501857867935" ID="ID_1896700254" MODIFIED="1518487921044" TEXT="Nexus vorhanden"/>
 <node CREATED="1501857873711" ID="ID_1994626464" MODIFIED="1518487921044" TEXT="CoreService konstruiert"/>
-<node CREATED="1501857903891" FOLDED="true" ID="ID_791583661" MODIFIED="1531584014113" TEXT="aber">
+<node CREATED="1501857903891" ID="ID_791583661" MODIFIED="1533608413515" TEXT="aber">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1501857907682" ID="ID_881624439" MODIFIED="1518487921044" TEXT="GTK_Loop mu&#xdf; (noch) nicht laufen"/>
@@ -500,7 +500,7 @@
 </node>
 </node>
 <node CREATED="1501858109615" ID="ID_747885327" MODIFIED="1518487921044" TEXT="UI-Facaden">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501858114023" FOLDED="true" ID="ID_749414376" MODIFIED="1531584014114">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501858114023" ID="ID_749414376" MODIFIED="1533608413515">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -703,7 +703,7 @@
 </html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node COLOR="#c80e33" CREATED="1484862058589" FOLDED="true" ID="ID_1640490030" MODIFIED="1531584014114" TEXT="Locking">
+<node COLOR="#c80e33" CREATED="1484862058589" ID="ID_1640490030" MODIFIED="1533608413516" TEXT="Locking">
 <icon BUILTIN="help"/>
 <node COLOR="#338800" CREATED="1484865203945" ID="ID_1990023724" MODIFIED="1518487921046" TEXT="Locking in der GuiFacade ist korrekt">
 <icon BUILTIN="button_ok"/>
@@ -713,7 +713,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1484865278999" FOLDED="true" ID="ID_1656236909" MODIFIED="1531584014115" TEXT="aufgekl&#xe4;rt">
+<node COLOR="#338800" CREATED="1484865278999" ID="ID_1656236909" MODIFIED="1533608413518" TEXT="aufgekl&#xe4;rt">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1484865298093" ID="ID_1797078596" MODIFIED="1518487921046">
 <richcontent TYPE="NODE"><html>
@@ -890,10 +890,10 @@
 <node CREATED="1503670572980" ID="ID_599888416" MODIFIED="1518487921048" TEXT="einzige Ausnahme">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1503670585794" FOLDED="true" ID="ID_1806860698" MODIFIED="1525124216338" TEXT="speziellen Hanlder verwenden">
+<node CREATED="1503670585794" FOLDED="true" ID="ID_1806860698" MODIFIED="1533608416105" TEXT="speziellen Hanlder verwenden">
 <arrowlink COLOR="#6d8097" DESTINATION="ID_376091136" ENDARROW="Default" ENDINCLINATION="129;8;" ID="Arrow_ID_206696117" STARTARROW="None" STARTINCLINATION="147;13;"/>
 <icon BUILTIN="yes"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203543467" FOLDED="true" ID="ID_285166941" MODIFIED="1525124215535" TEXT="TODO">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203543467" FOLDED="true" ID="ID_285166941" MODIFIED="1533608415749" TEXT="TODO">
 <icon BUILTIN="bell"/>
 <node CREATED="1504203570199" ID="ID_577706469" MODIFIED="1518487921048" TEXT="welche Fehler kann Diff-Anwendung werfen?">
 <icon BUILTIN="help"/>
@@ -1019,19 +1019,19 @@
 <node CREATED="1502402004383" ID="ID_1491065212" MODIFIED="1518487921050" TEXT="generisch bleiben?">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1502402012558" FOLDED="true" ID="ID_1846096533" MODIFIED="1531584014116" TEXT="IterSource verwenden">
+<node CREATED="1502402012558" ID="ID_1846096533" MODIFIED="1533608413520" TEXT="IterSource verwenden">
 <linktarget COLOR="#2579a2" DESTINATION="ID_1846096533" ENDARROW="Default" ENDINCLINATION="-5;149;" ID="Arrow_ID_896931950" SOURCE="ID_636092614" STARTARROW="None" STARTINCLINATION="158;5;"/>
 <icon BUILTIN="forward"/>
-<node CREATED="1502402691844" FOLDED="true" ID="ID_286774751" MODIFIED="1525124216338" TEXT="Diskussion">
-<node CREATED="1502402022580" FOLDED="true" ID="ID_1661331763" MODIFIED="1525124215535" TEXT="Pro">
+<node CREATED="1502402691844" FOLDED="true" ID="ID_286774751" MODIFIED="1533608416107" TEXT="Diskussion">
+<node CREATED="1502402022580" FOLDED="true" ID="ID_1661331763" MODIFIED="1533608415752" TEXT="Pro">
 <node CREATED="1502402025820" ID="ID_1076820802" MODIFIED="1518487921050" TEXT="bestehende Framework"/>
 <node CREATED="1502402031275" ID="ID_104571481" MODIFIED="1518487921050" TEXT="ownership management"/>
 <node CREATED="1502402038690" ID="ID_921191865" MODIFIED="1518487921050" TEXT="schlankes Interface"/>
 <node CREATED="1502402049305" ID="ID_20073652" MODIFIED="1518487921050" TEXT="eigentliche Diff-Erzeugung bleibt offen"/>
 </node>
-<node CREATED="1502402071222" FOLDED="true" ID="ID_905919540" MODIFIED="1525124215535" TEXT="Con">
+<node CREATED="1502402071222" FOLDED="true" ID="ID_905919540" MODIFIED="1533608415756" TEXT="Con">
 <node CREATED="1502402075413" ID="ID_913770531" MODIFIED="1518487921050" TEXT="Komplexit&#xe4;t"/>
-<node CREATED="1502402086268" FOLDED="true" ID="ID_380041258" MODIFIED="1525124215521" TEXT="zus&#xe4;tzliche Indirektion">
+<node CREATED="1502402086268" FOLDED="true" ID="ID_380041258" MODIFIED="1533608415359" TEXT="zus&#xe4;tzliche Indirektion">
 <node CREATED="1502402254582" ID="ID_218820320" MODIFIED="1518487921050" TEXT="DiffMutable beim Empf&#xe4;nger"/>
 <node CREATED="1502402499053" ID="ID_587801464" MODIFIED="1518487921050" TEXT="TreeMutator beim Empf&#xe4;nger"/>
 <node CREATED="1502402266284" ID="ID_1573858698" MODIFIED="1518487921050" TEXT="IterSource&lt;DiffStep&gt; beim Generator"/>
@@ -1048,7 +1048,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1502402213139" FOLDED="true" ID="ID_1233670694" MODIFIED="1525124215521" TEXT="nicht C-kompatibel">
+<node CREATED="1502402213139" FOLDED="true" ID="ID_1233670694" MODIFIED="1533608415362" TEXT="nicht C-kompatibel">
 <node CREATED="1502402286425" ID="ID_683015958" MODIFIED="1518487921051" TEXT="ja mei...">
 <icon BUILTIN="ksmiletris"/>
 </node>
@@ -1074,12 +1074,12 @@
 </node>
 </node>
 </node>
-<node CREATED="1502402701106" FOLDED="true" ID="ID_510901772" MODIFIED="1525124216338" TEXT="Abw&#xe4;gung">
+<node CREATED="1502402701106" FOLDED="true" ID="ID_510901772" MODIFIED="1533608416110" TEXT="Abw&#xe4;gung">
 <icon BUILTIN="yes"/>
 <node CREATED="1502402718496" ID="ID_1641881714" MODIFIED="1518487921051" TEXT="mir gef&#xe4;llt die L&#xf6;sung zum ownerhsip management"/>
 <node CREATED="1502402735558" ID="ID_1883129099" MODIFIED="1518487921051" TEXT="halte das f&#xfc;r eine gute Implementierungs-Struktur..."/>
 <node CREATED="1502402757163" ID="ID_1525377159" MODIFIED="1518487921051" TEXT="denn der Client ist quasi gezwungen, den Erzeugungs-Kontext herauszuabstrahieren"/>
-<node CREATED="1502402778960" FOLDED="true" ID="ID_577811618" MODIFIED="1525124215535" TEXT="Indirektion/Komplexit&#xe4;t">
+<node CREATED="1502402778960" FOLDED="true" ID="ID_577811618" MODIFIED="1533608415758" TEXT="Indirektion/Komplexit&#xe4;t">
 <node CREATED="1502402798909" ID="ID_813337624" MODIFIED="1518487921051" TEXT="z&#xe4;hlt nicht wirklich, denn.."/>
 <node CREATED="1502402810620" ID="ID_439896117" MODIFIED="1518487921051" TEXT="mit dem Diff-Konzept habe ich das bereits akzeptiert">
 <richcontent TYPE="NOTE"><html>
@@ -1193,12 +1193,12 @@
 <linktarget COLOR="#7caaa8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="2513;3565;" ID="Arrow_ID_1832047032" SOURCE="ID_489078622" STARTARROW="Default" STARTINCLINATION="3463;134;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501804992301" ID="ID_1647263044" MODIFIED="1518487921052" TEXT="schedule event"/>
-<node CREATED="1501804985286" FOLDED="true" ID="ID_320977714" MODIFIED="1531584481612" TEXT="GTK-Mechanismus">
+<node CREATED="1501804985286" ID="ID_320977714" MODIFIED="1533608413527" TEXT="GTK-Mechanismus">
 <node CREATED="1501850591393" ID="ID_1831316800" MODIFIED="1518487921052" TEXT="Glib::Dispatcher"/>
 <node CREATED="1501850603736" ID="ID_1030340631" MODIFIED="1518487921052" TEXT="im UI-Thread erzeugen und binden"/>
 <node CREATED="1501850614630" ID="ID_196299293" MODIFIED="1518487921052" TEXT="emit() -&gt; event im UI-Thread"/>
 </node>
-<node COLOR="#435e98" CREATED="1501850632636" FOLDED="true" ID="ID_431682708" MODIFIED="1531584471187" TEXT="technische Probleme">
+<node COLOR="#435e98" CREATED="1501850632636" ID="ID_431682708" MODIFIED="1533608413531" TEXT="technische Probleme">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1501850684373" ID="ID_1688212376" MODIFIED="1518487921052" TEXT="ein Dispatcher pro Call">
 <richcontent TYPE="NOTE"><html>
@@ -1280,7 +1280,7 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="yes"/>
-<node COLOR="#338800" CREATED="1501938738836" FOLDED="true" ID="ID_1257499857" MODIFIED="1531585082370" TEXT="Helper: CallQueue">
+<node COLOR="#338800" CREATED="1501938738836" ID="ID_1257499857" MODIFIED="1533608413532" TEXT="Helper: CallQueue">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501938715247" ID="ID_1286525769" MODIFIED="1518487921053" TEXT="simplistic">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -1290,7 +1290,7 @@
 <node CREATED="1501938690626" ID="ID_353231581" MODIFIED="1518487921053" TEXT="thread safe queue"/>
 <node CREATED="1501938705321" ID="ID_1924064403" MODIFIED="1518487921053" TEXT="lambdas f&#xfc;r Argument-binding"/>
 </node>
-<node COLOR="#338800" CREATED="1501938776839" FOLDED="true" ID="ID_1031878628" MODIFIED="1531585080306" TEXT="Convenience-Wrapper">
+<node COLOR="#338800" CREATED="1501938776839" ID="ID_1031878628" MODIFIED="1533608413533" TEXT="Convenience-Wrapper">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501939110138" ID="ID_203135379" MODIFIED="1518487921054" TEXT="Lambda konstruieren">
 <icon BUILTIN="button_ok"/>
@@ -1301,7 +1301,7 @@
 <node CREATED="1501939149837" ID="ID_1733976265" MODIFIED="1518487921054" TEXT="diese an Glib::Dispatcher binden">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1502404797300" FOLDED="true" ID="ID_1177399909" MODIFIED="1531584891368" TEXT="Exceptions fangen">
+<node CREATED="1502404797300" ID="ID_1177399909" MODIFIED="1533608413533" TEXT="Exceptions fangen">
 <arrowlink COLOR="#84b6b7" DESTINATION="ID_1875294174" ENDARROW="Default" ENDINCLINATION="1297;-64;" ID="Arrow_ID_245240331" STARTARROW="None" STARTINCLINATION="285;0;"/>
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1522935881957" HGAP="23" ID="ID_564244010" MODIFIED="1522935939206" TEXT="4/2018 was ist hier der Stand" VSHIFT="16">
@@ -1341,7 +1341,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1501939174506" FOLDED="true" ID="ID_504999068" MODIFIED="1531585078555" TEXT="in NotificationService integrieren">
+<node COLOR="#338800" CREATED="1501939174506" ID="ID_504999068" MODIFIED="1533608413534" TEXT="in NotificationService integrieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502375098210" ID="ID_581509556" MODIFIED="1518487921054" STYLE="fork" TEXT="als PImpl">
 <icon BUILTIN="button_ok"/>
@@ -1356,7 +1356,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1502375294344" FOLDED="true" ID="ID_640199096" MODIFIED="1531585085234" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
+<node COLOR="#338800" CREATED="1502375294344" ID="ID_640199096" MODIFIED="1533608413535" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502375312469" ID="ID_1075926054" MODIFIED="1518487921054" TEXT="ironischerweise...">
 <richcontent TYPE="NOTE"><html>
@@ -1376,9 +1376,9 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1502390322659" FOLDED="true" ID="ID_194166182" MODIFIED="1531584014117" TEXT="den neuen Dispatcher nutzen?">
+<node CREATED="1502390322659" ID="ID_194166182" MODIFIED="1533608413536" TEXT="den neuen Dispatcher nutzen?">
 <icon BUILTIN="help"/>
-<node CREATED="1502390340193" FOLDED="true" ID="ID_1491902996" MODIFIED="1525124216338" TEXT="Con">
+<node CREATED="1502390340193" FOLDED="true" ID="ID_1491902996" MODIFIED="1533608416111" TEXT="Con">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1502390353887" ID="ID_1015749080" MODIFIED="1518487921054">
 <richcontent TYPE="NODE"><html>
@@ -1411,14 +1411,14 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1502390334890" FOLDED="true" ID="ID_1454460947" MODIFIED="1525124216339" TEXT="Pro">
+<node CREATED="1502390334890" FOLDED="true" ID="ID_1454460947" MODIFIED="1533608416113" TEXT="Pro">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502390463664" ID="ID_1786963429" MODIFIED="1518487921054" TEXT="einfach zu implementieren"/>
 <node CREATED="1502390473567" ID="ID_1776620772" MODIFIED="1518487921054" TEXT="alle Glib::Dispatcher nutzen die gleiche Pipe"/>
 <node CREATED="1502390485294" ID="ID_146294589" MODIFIED="1518487921054" TEXT="...d.h. echte Alternative m&#xfc;&#xdf;te aufwendig zu Fu&#xdf; programmiert werden"/>
 </node>
 </node>
-<node CREATED="1502390572106" FOLDED="true" ID="ID_1872668444" MODIFIED="1531584014117" TEXT="zus&#xe4;tzlich noch eine Benachrichtigung">
+<node CREATED="1502390572106" ID="ID_1872668444" MODIFIED="1533608413539" TEXT="zus&#xe4;tzlich noch eine Benachrichtigung">
 <node CREATED="1502390583289" ID="ID_741614829" MODIFIED="1518487921054" TEXT="an die UI-Nachrichtenbox">
 <icon BUILTIN="info"/>
 </node>
@@ -1433,7 +1433,7 @@
 </node>
 <node CREATED="1501939193031" HGAP="3" ID="ID_1045913810" MODIFIED="1518487921054" TEXT="Test" VSHIFT="20">
 <icon BUILTIN="bell"/>
-<node COLOR="#338800" CREATED="1501939204166" FOLDED="true" ID="ID_383444966" MODIFIED="1531584014118" TEXT="CallQueue_test">
+<node COLOR="#338800" CREATED="1501939204166" ID="ID_383444966" MODIFIED="1533608413539" TEXT="CallQueue_test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1501946847700" ID="ID_1917302142" MODIFIED="1518487921054" TEXT="basic">
 <icon BUILTIN="button_ok"/>
@@ -1445,18 +1445,29 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" FOLDED="true" ID="ID_1007296291" MODIFIED="1531584014118" TEXT="#1099 DemoGuiRoundtrip">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1533402823749" TEXT="#1099 DemoGuiRoundtrip">
 <linktarget COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" SOURCE="ID_1925240675" STARTARROW="None" STARTINCLINATION="-51;592;"/>
+<linktarget COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" SOURCE="ID_1456159316" STARTARROW="None" STARTINCLINATION="418;-44;"/>
 <linktarget COLOR="#ebf0a5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-3154;1704;" ID="Arrow_ID_1091720734" SOURCE="ID_1098045534" STARTARROW="None" STARTINCLINATION="1627;38;"/>
 <icon BUILTIN="pencil"/>
-<node CREATED="1501939235834" ID="ID_1160414548" MODIFIED="1518487921054" TEXT="Men&#xfc;-Eintrag"/>
+<node CREATED="1501939235834" FOLDED="true" ID="ID_1160414548" MODIFIED="1533608416114" TEXT="Men&#xfc;-Eintrag">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402935579" ID="ID_263665767" MODIFIED="1533402958273" TEXT="erst mal Bang!-Button verwenden">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1533402947233" ID="ID_1533593555" MODIFIED="1533402955562" TEXT="alles fest drahten">
+<icon BUILTIN="yes"/>
+</node>
+</node>
 <node CREATED="1501939240217" ID="ID_325602880" MODIFIED="1518487921054" TEXT="triggert Proc-Command"/>
 <node CREATED="1501939252991" ID="ID_31140909" MODIFIED="1518487921054" TEXT="dieses sendet Mark zur&#xfc;ck"/>
-<node CREATED="1501939263030" FOLDED="true" ID="ID_381890207" MODIFIED="1525124216339" TEXT="ein Widget im UI reagiert">
-<node CREATED="1504200793444" FOLDED="true" ID="ID_340215113" MODIFIED="1525124215535" TEXT="mi&#xdf;brauche InfoBox">
+<node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1533608441262" TEXT="ein Widget im UI reagiert">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1533402876381" TEXT="fest verdrahtete ID">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <icon BUILTIN="idea"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1525124215521" TEXT="neues Dock">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504200974955" ID="ID_1182589184" MODIFIED="1533608441265" TEXT="neues Dock">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1522936169270" ID="ID_1991244597" MODIFIED="1522936194888" TEXT="vorl&#xe4;ufig eingeh&#xe4;ngt...">
 <richcontent TYPE="NOTE"><html>
@@ -1470,8 +1481,43 @@
   </body>
 </html></richcontent>
 </node>
+<node CREATED="1533607995396" ID="ID_806494084" MODIFIED="1533608457039" TEXT="wieder das Problem: wie bekommt man&apos;s">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533608171186" ID="ID_1446703192" MODIFIED="1533608449611" TEXT="#1104 how to instruct actions through panels">
+<arrowlink COLOR="#9e99b7" DESTINATION="ID_1943521361" ENDARROW="Default" ENDINCLINATION="-1423;-376;" ID="Arrow_ID_779469840" STARTARROW="None" STARTINCLINATION="920;0;"/>
+<icon BUILTIN="flag-yellow"/>
 </node>
-<node CREATED="1504203667130" FOLDED="true" ID="ID_1745777873" MODIFIED="1525124215521" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
+<node CREATED="1533608459780" ID="ID_1685349188" MODIFIED="1533608467039" TEXT="k&#xf6;nnen wir nicht sofort l&#xf6;sen"/>
+<node CREATED="1533608471274" ID="ID_1700599331" MODIFIED="1533608486779" TEXT="aber m&#xfc;ssen der L&#xf6;sung vorgreifen">
+<icon BUILTIN="yes"/>
+<node CREATED="1533608548408" ID="ID_154643654" MODIFIED="1533608602022" TEXT="man fragt einen Service: gib mir....">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      es ist schon bekannt, da&#223; dieser Service der <b>ViewLocator</b>&#160;sein wird,
+    </p>
+    <p>
+      und da&#223; man ihn via <b>InteractionDirector</b>&#160;erreicht
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1533608609479" ID="ID_1375309708" MODIFIED="1533608624410" TEXT="Erzeugung">
+<node CREATED="1533608626061" ID="ID_401916400" MODIFIED="1533608643287" TEXT="entweder aufgrund so einer Anfrage"/>
+<node CREATED="1533608656121" ID="ID_448111831" MODIFIED="1533608669227" TEXT="oder explizit per User/Men&#xfc;-Aktion"/>
+<node CREATED="1533608670271" ID="ID_216288706" MODIFIED="1533608678066" TEXT="oder generisch-fest-verdrahtet"/>
+</node>
+<node CREATED="1533608721200" ID="ID_724576502" MODIFIED="1533608725939" TEXT="Schlu&#xdf;folgerung">
+<node CREATED="1533608737142" ID="ID_1087400544" MODIFIED="1533608752167" TEXT="der vollziehende Erzeuger braucht Zugang zum UI-Bus"/>
+<node CREATED="1533608822826" ID="ID_1772827095" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1504203667130" FOLDED="true" ID="ID_1745777873" MODIFIED="1533608415370" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
 <linktarget COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" SOURCE="ID_812129962" STARTARROW="None" STARTINCLINATION="808;0;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1504203746239" ID="ID_697660682" MODIFIED="1518487921054" TEXT="Scroll-Pane">
@@ -1505,7 +1551,9 @@
 <node CREATED="1504203763606" ID="ID_877984616" MODIFIED="1518487921054" TEXT="in ein Widget verpacken">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1504203754175" ID="ID_580465154" MODIFIED="1518487921054" TEXT="Fehler-Level erkennen"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1533402997076" TEXT="Fehler-Level erkennen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1522936276561" TEXT="Bang! -Button">
 <icon BUILTIN="button_ok"/>
@@ -1565,7 +1613,7 @@
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1501782399454" ID="ID_1238852873" MODIFIED="1518487921055" TEXT="InteractionDirector"/>
-<node CREATED="1501784310336" FOLDED="true" ID="ID_455705917" MODIFIED="1531584014119" TEXT="was f&#xfc;r eine Nachricht?">
+<node CREATED="1501784310336" ID="ID_455705917" MODIFIED="1533608413540" TEXT="was f&#xfc;r eine Nachricht?">
 <icon BUILTIN="help"/>
 <node CREATED="1501784324670" ID="ID_202531654" MODIFIED="1518487921055" TEXT="mu&#xdf; in das Protokoll passen"/>
 <node CREATED="1501784333946" ID="ID_238263434" MODIFIED="1518487921055" TEXT="sollte nicht willk&#xfc;rlich sein"/>
@@ -1659,7 +1707,7 @@
 </html></richcontent>
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 <icon BUILTIN="messagebox_warning"/>
-<node COLOR="#338800" CREATED="1485118623744" FOLDED="true" HGAP="23" ID="ID_392996871" MODIFIED="1533325801383" TEXT="#1032 use gtk::Application instead of gtk::Main" VSHIFT="11">
+<node COLOR="#338800" CREATED="1485118623744" HGAP="23" ID="ID_392996871" MODIFIED="1533608413545" TEXT="#1032 use gtk::Application instead of gtk::Main" VSHIFT="11">
 <arrowlink COLOR="#ae1856" DESTINATION="ID_206480879" ENDARROW="Default" ENDINCLINATION="715;0;" ID="Arrow_ID_926482654" STARTARROW="Default" STARTINCLINATION="134;383;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1485118668802" ID="ID_575152579" MODIFIED="1518487921055" TEXT="WindowManager verwendet gtk::Main"/>
@@ -1674,11 +1722,11 @@
 </node>
 <node CREATED="1485124084465" ID="ID_660066920" MODIFIED="1518487921055" TEXT="how-to">
 <icon BUILTIN="help"/>
-<node CREATED="1485124094936" FOLDED="true" ID="ID_1446212765" MODIFIED="1531584014119" TEXT="offiziell">
+<node CREATED="1485124094936" ID="ID_1446212765" MODIFIED="1533608413545" TEXT="offiziell">
 <node CREATED="1485124098920" ID="ID_1783958965" MODIFIED="1518487921055" TEXT="auto app = Application::create"/>
 <node CREATED="1485124111806" ID="ID_231977368" MODIFIED="1518487921055" TEXT="app-&gt;run"/>
 </node>
-<node CREATED="1485124120220" FOLDED="true" ID="ID_1639025787" MODIFIED="1531584014120" TEXT="von Application erben">
+<node CREATED="1485124120220" ID="ID_1639025787" MODIFIED="1533608413546" TEXT="von Application erben">
 <icon BUILTIN="help"/>
 <node CREATED="1485124129436" ID="ID_1540860407" MODIFIED="1518487921055" TEXT="laut Quellcode spricht nichts dagegen"/>
 <node CREATED="1485124142178" ID="ID_1048261084" MODIFIED="1518487921055" TEXT="man sollte aber keine Methoden &#xfc;berschreiben">
@@ -1749,21 +1797,21 @@
 <node CREATED="1493754789137" ID="ID_1903744710" MODIFIED="1518487921055" TEXT="kommt mir komisch vor">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493754799439" ID="ID_288205807" MODIFIED="1518487921055" TEXT="das &quot;riecht&quot; nach Framework"/>
-<node CREATED="1493754808373" FOLDED="true" ID="ID_998804989" MODIFIED="1531584014120" TEXT="&quot;wir machen bequem alles f&#xfc;r Sie&quot;">
+<node CREATED="1493754808373" ID="ID_998804989" MODIFIED="1533608413546" TEXT="&quot;wir machen bequem alles f&#xfc;r Sie&quot;">
 <node CREATED="1493759500422" ID="ID_378870766" MODIFIED="1518487921055" TEXT="macht mir Angst">
 <icon BUILTIN="smily_bad"/>
 </node>
-<node CREATED="1493759504742" FOLDED="true" ID="ID_1800184805" MODIFIED="1525124216339" TEXT="Kontrollverlust">
+<node CREATED="1493759504742" FOLDED="true" ID="ID_1800184805" MODIFIED="1533608416118" TEXT="Kontrollverlust">
 <node CREATED="1493759564302" ID="ID_409429771" MODIFIED="1518487921055" TEXT="undurchsichtig"/>
 <node CREATED="1493759572261" ID="ID_1741586689" MODIFIED="1518487921055" TEXT="mehrere Ebenen von Frameworks &#xfc;bereinander"/>
 <node CREATED="1493759581123" ID="ID_1296466414" MODIFIED="1518487921055" TEXT="ich traue den Gnome-Leuten nicht &#xfc;ber den Weg"/>
 </node>
 </node>
-<node CREATED="1493754820476" FOLDED="true" ID="ID_608560419" MODIFIED="1531584014121" TEXT="brauche ich &#xfc;berhaupt eine Gtk::Application">
+<node CREATED="1493754820476" ID="ID_608560419" MODIFIED="1533608413548" TEXT="brauche ich &#xfc;berhaupt eine Gtk::Application">
 <icon BUILTIN="help"/>
 <node CREATED="1493756483852" ID="ID_1428028027" MODIFIED="1518487921055" TEXT="naja, man kann GTK zu Fu&#xdf; verwenden"/>
 <node CREATED="1493756499745" ID="ID_633405815" MODIFIED="1518487921055" TEXT="aber gtk::Application zeigt, wie"/>
-<node CREATED="1493759629357" FOLDED="true" ID="ID_1297670007" MODIFIED="1525124216339" TEXT="gtk::Application">
+<node CREATED="1493759629357" FOLDED="true" ID="ID_1297670007" MODIFIED="1533608416120" TEXT="gtk::Application">
 <node CREATED="1493759644755" ID="ID_224674022" MODIFIED="1518487921056" TEXT="ist eine Window-Liste"/>
 <node CREATED="1493759717704" ID="ID_697856504" MODIFIED="1518487921056" TEXT="initialisiert GTK, GLib, GIO"/>
 <node CREATED="1493759649754" ID="ID_898599245" MODIFIED="1518487921056" TEXT="schlie&#xdf;t, wenn letztes Fenster zu"/>
@@ -1774,16 +1822,16 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1495215099003" FOLDED="true" ID="ID_1971256545" MODIFIED="1531584014122" TEXT="brauche ich &#xfc;berhaupt eine Gio::Application">
+<node CREATED="1495215099003" ID="ID_1971256545" MODIFIED="1533608413550" TEXT="brauche ich &#xfc;berhaupt eine Gio::Application">
 <icon BUILTIN="help"/>
 <node CREATED="1495215111775" ID="ID_1003964020" MODIFIED="1518487921056" TEXT="initialisiert das Framework"/>
 <node CREATED="1495215119685" ID="ID_1761204495" MODIFIED="1518487921056" TEXT="stellt eine dBus-Verbindung her"/>
-<node CREATED="1495215129564" FOLDED="true" ID="ID_973272722" MODIFIED="1525124216339" TEXT="ist eine gio::ActionGroup">
+<node CREATED="1495215129564" FOLDED="true" ID="ID_973272722" MODIFIED="1533608416122" TEXT="ist eine gio::ActionGroup">
 <node CREATED="1495215149281" ID="ID_1774523135" MODIFIED="1518487921056" TEXT="man kann Aktionen hinzuf&#xfc;gen"/>
 <node CREATED="1495215164279" ID="ID_1315941470" MODIFIED="1518487921056" TEXT="diese Arbeitet mit einem ApplicationWindow zusammen"/>
 <node CREATED="1495215177478" ID="ID_250116811" MODIFIED="1518487921056" TEXT="beachte: nicht GtkWindow, sondern ApplicationWindow (Subclass)"/>
 </node>
-<node CREATED="1495215193500" FOLDED="true" ID="ID_503299515" MODIFIED="1525124216339" TEXT="Zweck (Vermutung)">
+<node CREATED="1495215193500" FOLDED="true" ID="ID_503299515" MODIFIED="1533608416124" TEXT="Zweck (Vermutung)">
 <node CREATED="1495215209066" ID="ID_1153171656" MODIFIED="1518487921056" TEXT="Desktop-Integration"/>
 <node CREATED="1495215214824" ID="ID_1385031644" MODIFIED="1518487921056" TEXT="Grenzen der Applikation aufweichen"/>
 <node CREATED="1495215221624" ID="ID_297065945" MODIFIED="1518487921056" TEXT="Aktionen direkt in den Desktiop integrieren"/>
@@ -1805,7 +1853,7 @@
 <node COLOR="#338800" CREATED="1495218699712" ID="ID_1332523704" MODIFIED="1533325519569" TEXT="den Code aus Gtk::Main in unsere Codebasis &#xfc;bernehmen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1495218714230" FOLDED="true" ID="ID_1371091843" MODIFIED="1531584014122" TEXT="Vorsicht mit Action / ActionGroup">
+<node CREATED="1495218714230" ID="ID_1371091843" MODIFIED="1533608413552" TEXT="Vorsicht mit Action / ActionGroup">
 <node CREATED="1495218731435" ID="ID_1744881610" MODIFIED="1518487921056" TEXT="noch nicht deprecated"/>
 <node CREATED="1495218744961" ID="ID_97034293" MODIFIED="1518487921056" TEXT="aber Abl&#xf6;sung durch Gio::SimpleAction geplant"/>
 <node CREATED="1495218770694" ID="ID_644528853" MODIFIED="1518487921056" TEXT="Warnung: mit dem neuen Gtk::ApplicationWindow verkoppelt">
@@ -1835,7 +1883,7 @@
 <node CREATED="1493762498476" ID="ID_1290148687" MODIFIED="1518487921056" TEXT="direkt gtk_main_quit aufrufen">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1493762556755" FOLDED="true" HGAP="34" ID="ID_651403872" MODIFIED="1533303992861" TEXT="siehe" VSHIFT="16">
+<node CREATED="1493762556755" HGAP="34" ID="ID_651403872" MODIFIED="1533608413552" TEXT="siehe" VSHIFT="16">
 <node CREATED="1493762559339" ID="ID_742529116" MODIFIED="1518487921056" TEXT="altes Gtk::Main::quit"/>
 <node CREATED="1493762568266" ID="ID_902609710" MODIFIED="1518487921056" TEXT="Gio::Application::quit"/>
 </node>
@@ -1848,12 +1896,12 @@
 <arrowlink COLOR="#469fa6" DESTINATION="ID_1120787097" ENDARROW="Default" ENDINCLINATION="1826;-6782;" ID="Arrow_ID_433910583" STARTARROW="None" STARTINCLINATION="821;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1493763356907" FOLDED="true" ID="ID_981398529" MODIFIED="1533303138298" TEXT="aber">
+<node CREATED="1493763356907" ID="ID_981398529" MODIFIED="1533608413553" TEXT="aber">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493763398798" ID="ID_760049978" MODIFIED="1518487921056" TEXT="Gtk::Main ist deprecated"/>
 <node CREATED="1493763393720" ID="ID_112295077" MODIFIED="1518487921056" TEXT="wohin entwickelt sich GTK?"/>
 </node>
-<node CREATED="1493768460811" FOLDED="true" ID="ID_1862271811" MODIFIED="1533303182413" TEXT="Alternativen">
+<node CREATED="1493768460811" ID="ID_1862271811" MODIFIED="1533608413553" TEXT="Alternativen">
 <node CREATED="1493768465482" ID="ID_1159523698" MODIFIED="1518487921056" TEXT="gtk_main aufrufen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2452,7 +2500,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1483910035326" FOLDED="true" ID="ID_366990653" MODIFIED="1531584014124" TEXT="latentes Design-Problem">
+<node CREATED="1483910035326" ID="ID_366990653" MODIFIED="1533608413554" TEXT="latentes Design-Problem">
 <icon BUILTIN="idea"/>
 <node CREATED="1483910047148" ID="ID_1870862761" MODIFIED="1518487921058" TEXT="Design Rec&lt;GenNode&gt;"/>
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@@ -3778,7 +3826,7 @@
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 </node>
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-<node CREATED="1506180752099" FOLDED="true" ID="ID_1861096545" MODIFIED="1531584014125" TEXT="Prereq: need to anchored">
+<node CREATED="1506180752099" ID="ID_1861096545" MODIFIED="1533608413554" TEXT="Prereq: need to anchored">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
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@@ -3786,7 +3834,7 @@
 <node CREATED="1506180752100" ID="ID_1093737813" MODIFIED="1506180752100" TEXT="by extension of incomplete"/>
 </node>
 <node CREATED="1506180752100" ID="ID_1925372021" MODIFIED="1506180752100" TEXT="completely covered"/>
-<node CREATED="1506180752100" FOLDED="true" ID="ID_1969020445" MODIFIED="1531584014125" TEXT="partially covered">
+<node CREATED="1506180752100" ID="ID_1969020445" MODIFIED="1533608413555" TEXT="partially covered">
 <node CREATED="1506180752100" ID="ID_1998116592" MODIFIED="1506180752100" TEXT="test only"/>
 <node CREATED="1506180752101" ID="ID_1458219980" MODIFIED="1506180752101" TEXT="yield uncovered extension part"/>
 </node>
@@ -3835,7 +3883,7 @@
   </body>
 </html></richcontent>
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-<node CREATED="1506180752103" FOLDED="true" ID="ID_1087218713" MODIFIED="1531584014125" TEXT="descend to an existing child">
+<node CREATED="1506180752103" ID="ID_1087218713" MODIFIED="1533608413555" TEXT="descend to an existing child">
 <node CREATED="1506180752103" ID="ID_908880124" MODIFIED="1506180752103" TEXT="by matching name"/>
 <node CREATED="1506180752104" ID="ID_1484420566" MODIFIED="1506180752104" TEXT="by index number"/>
 </node>
@@ -4045,7 +4093,7 @@
 <node CREATED="1507939427445" ID="ID_235303811" MODIFIED="1518487921064" TEXT="Kinder finden">
 <linktarget COLOR="#7d375a" DESTINATION="ID_235303811" ENDARROW="Default" ENDINCLINATION="155;0;" ID="Arrow_ID_1900802893" SOURCE="ID_1464418318" STARTARROW="None" STARTINCLINATION="155;0;"/>
 </node>
-<node CREATED="1507939433916" FOLDED="true" ID="ID_1018540556" MODIFIED="1531584014126" TEXT="Kinder erzeugen">
+<node CREATED="1507939433916" ID="ID_1018540556" MODIFIED="1533608413556" TEXT="Kinder erzeugen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1508109233808" ID="ID_816587529" MODIFIED="1518487921064" TEXT="erfordert gemeinsames Interface"/>
 <node CREATED="1508109252574" ID="ID_1185099286" MODIFIED="1518487921064">
@@ -4064,21 +4112,21 @@
 </node>
 </node>
 <node CREATED="1507939846405" ID="ID_789410975" MODIFIED="1518487921064" TEXT="konkrete Probleme">
-<node CREATED="1507939859100" FOLDED="true" ID="ID_860523933" MODIFIED="1531584014126" TEXT="wer bin &quot;ich&quot;?">
+<node CREATED="1507939859100" ID="ID_860523933" MODIFIED="1533608413557" TEXT="wer bin &quot;ich&quot;?">
 <icon BUILTIN="help"/>
-<node CREATED="1507939956606" FOLDED="true" ID="ID_406843936" MODIFIED="1525124216339" TEXT="was ist gegeben?">
+<node CREATED="1507939956606" FOLDED="true" ID="ID_406843936" MODIFIED="1533608416125" TEXT="was ist gegeben?">
 <icon BUILTIN="help"/>
 <node CREATED="1508017024459" ID="ID_604601896" MODIFIED="1518487921064" TEXT="stets ein kompletter Zugangs-Pfad">
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1507939970349" FOLDED="true" ID="ID_714349147" MODIFIED="1525124216339" TEXT="in welcher Form ist es gegeben?">
+<node CREATED="1507939970349" FOLDED="true" ID="ID_714349147" MODIFIED="1533608416126" TEXT="in welcher Form ist es gegeben?">
 <icon BUILTIN="help"/>
 <node CREATED="1508016915761" ID="ID_1202508530" MODIFIED="1518487921064" TEXT="konkretes Objekt"/>
 <node CREATED="1508016919857" ID="ID_437710115" MODIFIED="1518487921064" TEXT="UI-Koordinaten per Lookup"/>
 </node>
 </node>
-<node CREATED="1507939869906" FOLDED="true" ID="ID_223198097" MODIFIED="1531584014127" STYLE="fork" TEXT="wo bin &quot;ich&quot;?">
+<node CREATED="1507939869906" ID="ID_223198097" MODIFIED="1533608413572" STYLE="fork" TEXT="wo bin &quot;ich&quot;?">
 <icon BUILTIN="help"/>
 <node CREATED="1507940000057" ID="ID_1526112208" MODIFIED="1518487921064">
 <richcontent TYPE="NODE"><html>
@@ -4106,8 +4154,8 @@
 <font NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1508016569551" FOLDED="true" ID="ID_250033067" MODIFIED="1525124216339" TEXT="zwei L&#xf6;sungsans&#xe4;tze">
-<node CREATED="1508016575359" FOLDED="true" ID="ID_1494737189" MODIFIED="1525124215535" TEXT="Ort ist bekannt">
+<node CREATED="1508016569551" FOLDED="true" ID="ID_250033067" MODIFIED="1533608416128" TEXT="zwei L&#xf6;sungsans&#xe4;tze">
+<node CREATED="1508016575359" FOLDED="true" ID="ID_1494737189" MODIFIED="1533608415764" TEXT="Ort ist bekannt">
 <node CREATED="1508016623480" ID="ID_66450805" MODIFIED="1518487921064" TEXT="Element speichert seine UICoord"/>
 <node CREATED="1508016658684" ID="ID_116864327" MODIFIED="1518487921064" TEXT="globaler Index beim Erstellen">
 <richcontent TYPE="NOTE"><html>
@@ -4125,15 +4173,15 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1508016602867" FOLDED="true" ID="ID_1861393889" MODIFIED="1525124215535" TEXT="Ort kann entdeckt werden">
+<node CREATED="1508016602867" FOLDED="true" ID="ID_1861393889" MODIFIED="1533608415765" TEXT="Ort kann entdeckt werden">
 <node CREATED="1508016710621" ID="ID_194767769" MODIFIED="1518487921064" TEXT="Element kennt seinen Vater"/>
 <node CREATED="1508016741377" ID="ID_1796475231" MODIFIED="1518487921064" TEXT="(GObject) Introspektion"/>
 </node>
 </node>
 </node>
-<node CREATED="1507939914076" FOLDED="true" ID="ID_109277608" MODIFIED="1531584014127" TEXT="was gilt als &quot;Kind&quot;?">
+<node CREATED="1507939914076" ID="ID_109277608" MODIFIED="1533608413577" TEXT="was gilt als &quot;Kind&quot;?">
 <icon BUILTIN="help"/>
-<node CREATED="1507940046234" FOLDED="true" ID="ID_577613088" MODIFIED="1525124216340">
+<node CREATED="1507940046234" FOLDED="true" ID="ID_577613088" MODIFIED="1533608416130">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4148,12 +4196,12 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="help"/>
-<node CREATED="1508017106368" FOLDED="true" ID="ID_896661508" MODIFIED="1525124215536" TEXT="UI-Element">
+<node CREATED="1508017106368" FOLDED="true" ID="ID_896661508" MODIFIED="1533608415767" TEXT="UI-Element">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1508017111959" ID="ID_484448099" MODIFIED="1518487921064" TEXT="nein"/>
 <node CREATED="1508017121582" ID="ID_1052512660" MODIFIED="1518487921064" TEXT="denn: Fenster, Panels,..."/>
 </node>
-<node CREATED="1508017134709" FOLDED="true" ID="ID_881948528" MODIFIED="1525124215536" TEXT="Navigierbarkeit">
+<node CREATED="1508017134709" FOLDED="true" ID="ID_881948528" MODIFIED="1533608415769" TEXT="Navigierbarkeit">
 <node CREATED="1508017225544" ID="ID_1003735159" MODIFIED="1518487921064" TEXT="abstrakt">
 <icon BUILTIN="help"/>
 </node>
@@ -4161,13 +4209,13 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1508017200476" FOLDED="true" ID="ID_1519289713" MODIFIED="1525124215536" TEXT="gar keine">
+<node CREATED="1508017200476" FOLDED="true" ID="ID_1519289713" MODIFIED="1533608415770" TEXT="gar keine">
 <node CREATED="1508017203419" ID="ID_1168589916" MODIFIED="1518487921064" TEXT="generische Programmierung!">
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
-<node CREATED="1508017409096" FOLDED="true" ID="ID_1088456751" MODIFIED="1525124216340" TEXT="was ist hier ein &quot;Element&quot;?">
+<node CREATED="1508017409096" FOLDED="true" ID="ID_1088456751" MODIFIED="1533608416131" TEXT="was ist hier ein &quot;Element&quot;?">
 <icon BUILTIN="help"/>
 <node CREATED="1508017614565" ID="ID_825986555" MODIFIED="1518487921064" TEXT="bleibt abstrakt">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -4176,7 +4224,7 @@
 <node CREATED="1508017621148" ID="ID_945496558" MODIFIED="1518487921064" TEXT="man kann etwas damit machen"/>
 </node>
 </node>
-<node CREATED="1507939927035" FOLDED="true" ID="ID_461225915" MODIFIED="1531584014128">
+<node CREATED="1507939927035" ID="ID_461225915" MODIFIED="1533608413581">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4196,11 +4244,11 @@
 </node>
 </node>
 <node CREATED="1508016417180" ID="ID_1611707918" MODIFIED="1518487921064" TEXT="use cases">
-<node CREATED="1508016430306" FOLDED="true" ID="ID_192114274" MODIFIED="1531584014128" TEXT="ViewSpec">
+<node CREATED="1508016430306" ID="ID_192114274" MODIFIED="1533608413582" TEXT="ViewSpec">
 <node CREATED="1508018634766" ID="ID_749934346" MODIFIED="1518487921064" TEXT="View allozieren"/>
 <node CREATED="1508018640309" ID="ID_1078510800" MODIFIED="1518487921064" TEXT="View-Instanz per Gattung"/>
 </node>
-<node CREATED="1508016469685" FOLDED="true" ID="ID_115506070" MODIFIED="1531584014128" TEXT="change WorkSite">
+<node CREATED="1508016469685" ID="ID_115506070" MODIFIED="1533608413582" TEXT="change WorkSite">
 <node CREATED="1508018713267" ID="ID_778872885" MODIFIED="1518487921064" TEXT="WorkSite verlagern / mitf&#xfc;hren"/>
 <node CREATED="1508018720562" ID="ID_187314256" MODIFIED="1518487921064" TEXT="zu anderer WorkSite gehen"/>
 </node>
@@ -4209,7 +4257,7 @@
 <node CREATED="1508020233586" HGAP="41" ID="ID_1791370781" MODIFIED="1518487921064" TEXT="Fazit" VSHIFT="16">
 <node CREATED="1508020253223" ID="ID_1259200744" MODIFIED="1518487921064" TEXT="Problem zerlegen">
 <node CREATED="1508020258670" ID="ID_95147852" MODIFIED="1518487921064" TEXT="reverse resolution"/>
-<node CREATED="1508020270709" FOLDED="true" ID="ID_1200125105" MODIFIED="1531584014129" TEXT="Kinder finden">
+<node CREATED="1508020270709" ID="ID_1200125105" MODIFIED="1533608413583" TEXT="Kinder finden">
 <node CREATED="1508020280683" ID="ID_646056653" MODIFIED="1518487921064" TEXT="fest verdrahtet f&#xfc;r top-level"/>
 <node CREATED="1508020286443" ID="ID_515525549" MODIFIED="1518487921064" TEXT="Interface f&#xfc;r lokal"/>
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@@ -4217,7 +4265,7 @@
 <node CREATED="1508020411538" ID="ID_544888156" MODIFIED="1518487921064" TEXT="Navigation">
 <node CREATED="1508020417633" ID="ID_1963411977" MODIFIED="1518487921064" TEXT="arbeitet nur auf UI-Koordinaten"/>
 <node CREATED="1508020433719" ID="ID_1645971492" MODIFIED="1518487921064" TEXT="die dahinterliegenden Strukturen bleiben opaque"/>
-<node CREATED="1508020450445" FOLDED="true" ID="ID_1822545447" MODIFIED="1531584014129" TEXT="mit dem Ergebnis">
+<node CREATED="1508020450445" ID="ID_1822545447" MODIFIED="1533608413584" TEXT="mit dem Ergebnis">
 <node CREATED="1508020465443" ID="ID_1921466133" MODIFIED="1518487921064" TEXT="kann man dann einen View erzeugen"/>
 <node CREATED="1508020489583" ID="ID_1140824323" MODIFIED="1518487921064" TEXT="oder ein Element (bekannten Typs) bekommen"/>
 <node CREATED="1508020551095" ID="ID_798942495" MODIFIED="1518487921064">
@@ -4270,14 +4318,14 @@
 </node>
 <node CREATED="1506301421612" ID="ID_572376877" MODIFIED="1506301426568" TEXT="Meta-Problem">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1506301428698" FOLDED="true" ID="ID_1290675306" MODIFIED="1531584014130" TEXT="Parameter-Pack zerlegen">
+<node CREATED="1506301428698" ID="ID_1290675306" MODIFIED="1533608413585" TEXT="Parameter-Pack zerlegen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1506301435826" ID="ID_1852582857" MODIFIED="1506301447508" TEXT="ersten Teil in ein std::array"/>
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 </node>
-<node CREATED="1506301468830" FOLDED="true" ID="ID_291609200" MODIFIED="1531584014130" TEXT="L&#xf6;sungen">
+<node CREATED="1506301468830" ID="ID_291609200" MODIFIED="1533608413586" TEXT="L&#xf6;sungen">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1506301476836" FOLDED="true" ID="ID_1339982909" MODIFIED="1525124216340" TEXT="Stackoverflow">
+<node CREATED="1506301476836" FOLDED="true" ID="ID_1339982909" MODIFIED="1533608416135" TEXT="Stackoverflow">
 <icon BUILTIN="idea"/>
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 <node CREATED="1506301658388" ID="ID_284261237" LINK="https://stackoverflow.com/users/1932150/andy-prowl" MODIFIED="1506301669997" TEXT="von Andy Prowl"/>
@@ -4286,26 +4334,26 @@
 <node CREATED="1506303631812" ID="ID_1461128808" LINK="https://stackoverflow.com/questions/5484930/split-variadic-template-arguments/20814644#20814644" MODIFIED="1506303806992" TEXT="direkt initializer_list verwenden"/>
 <node CREATED="1506303644395" ID="ID_1907242246" LINK="https://stackoverflow.com/users/2684539/jarod42" MODIFIED="1506303675990" TEXT="von user Jarod42 12/2013"/>
 </node>
-<node CREATED="1506301674594" FOLDED="true" ID="ID_573792630" MODIFIED="1525124216340" TEXT="Boost.fusion verwenden">
+<node CREATED="1506301674594" FOLDED="true" ID="ID_573792630" MODIFIED="1533608416137" TEXT="Boost.fusion verwenden">
 <icon BUILTIN="button_cancel"/>
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-<node CREATED="1506301696911" FOLDED="true" ID="ID_1626810109" MODIFIED="1525124215536" TEXT="Compiler optimiert Tupel weg">
+<node CREATED="1506301696911" FOLDED="true" ID="ID_1626810109" MODIFIED="1533608415773" TEXT="Compiler optimiert Tupel weg">
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 <node CREATED="1506301713285" ID="ID_703461640" MODIFIED="1506301719136" TEXT="GCC und Clang"/>
 <node CREATED="1506301719660" ID="ID_1581101665" MODIFIED="1506301722999" TEXT="in Release-Builds"/>
 </node>
 </node>
-<node CREATED="1506301773341" FOLDED="true" ID="ID_515001314" MODIFIED="1525124216340" TEXT="Entscheidung">
+<node CREATED="1506301773341" FOLDED="true" ID="ID_515001314" MODIFIED="1533608416138" TEXT="Entscheidung">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<node CREATED="1506301780644" FOLDED="true" ID="ID_143930610" MODIFIED="1525124215536" TEXT="Boost.fustion abgelehnt">
+<node CREATED="1506301780644" FOLDED="true" ID="ID_143930610" MODIFIED="1533608415776" TEXT="Boost.fustion abgelehnt">
 <icon BUILTIN="yes"/>
 <node CREATED="1506301789546" ID="ID_322419894" MODIFIED="1506301792558" TEXT="verwendet MPL"/>
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-<node COLOR="#338800" CREATED="1506301834493" FOLDED="true" ID="ID_52512330" MODIFIED="1525124215536" TEXT="selber schreiben anhand Beispiel">
+<node COLOR="#338800" CREATED="1506301834493" FOLDED="true" ID="ID_52512330" MODIFIED="1533608415779" TEXT="selber schreiben anhand Beispiel">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1506723689710" ID="ID_454128552" MODIFIED="1506723762301" TEXT="Mini-Framework">
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@@ -4443,13 +4491,13 @@
 </node>
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-<node CREATED="1509323520018" FOLDED="true" ID="ID_895622034" MODIFIED="1531584014131" TEXT="covern">
+<node CREATED="1509323520018" ID="ID_895622034" MODIFIED="1533608413593" TEXT="covern">
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 <node CREATED="1514747959935" ID="ID_1468731328" MODIFIED="1514747964178" TEXT="partiell"/>
 <node CREATED="1514747965047" ID="ID_662883062" MODIFIED="1514747969250" TEXT="maximal partiell"/>
 <node CREATED="1514747970239" ID="ID_1657718025" MODIFIED="1514747982281" TEXT="partiell lokal maximal"/>
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-<node CREATED="1509323523193" FOLDED="true" ID="ID_1088301010" MODIFIED="1531584014131" TEXT="ist nicht das gleiche">
+<node CREATED="1509323523193" ID="ID_1088301010" MODIFIED="1533608413593" TEXT="ist nicht das gleiche">
 <icon BUILTIN="idea"/>
 <node CREATED="1509323532816" ID="ID_1206148872" MODIFIED="1511572071989" TEXT="covern kann scheitern">
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@@ -4511,7 +4559,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1514748024287" FOLDED="true" ID="ID_85844536" MODIFIED="1531584014132" TEXT="ist partielle Covfefe sinnvoll">
+<node CREATED="1514748024287" ID="ID_85844536" MODIFIED="1533608413595" TEXT="ist partielle Covfefe sinnvoll">
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@@ -4554,11 +4602,11 @@
 <node CREATED="1514328942052" ID="ID_638910432" MODIFIED="1514328949331" TEXT="&#xbb;pathResolution&#xab;"/>
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-<node CREATED="1514329005195" FOLDED="true" ID="ID_1796584977" MODIFIED="1531584014132" TEXT="firstWindow">
+<node CREATED="1514329005195" ID="ID_1796584977" MODIFIED="1533608413596" TEXT="firstWindow">
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-<node CREATED="1514329036159" FOLDED="true" ID="ID_1686905211" MODIFIED="1531584014133" TEXT="currentWindow">
+<node CREATED="1514329036159" ID="ID_1686905211" MODIFIED="1533608413597" TEXT="currentWindow">
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@@ -4573,7 +4621,7 @@
 </html></richcontent>
 </node>
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-<node CREATED="1514329081745" FOLDED="true" ID="ID_1158924252" MODIFIED="1531584014133" TEXT="&apos;*&apos;">
+<node CREATED="1514329081745" ID="ID_1158924252" MODIFIED="1533608413598" TEXT="&apos;*&apos;">
 <node CREATED="1514329106294" ID="ID_1601049546" MODIFIED="1514329116032" TEXT="innere Elemente in einer UICorrd-spec"/>
 <node CREATED="1514329119084" ID="ID_898086495" MODIFIED="1514329219306" TEXT="match gegen existierende UI-Elemente..."/>
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@@ -4702,7 +4750,7 @@
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-<node CREATED="1508539350382" FOLDED="true" ID="ID_585593926" MODIFIED="1531584014134" TEXT="Ergebnis">
+<node CREATED="1508539350382" ID="ID_585593926" MODIFIED="1533608413598" TEXT="Ergebnis">
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@@ -4792,7 +4840,7 @@
 <node CREATED="1509475609338" ID="ID_142146721" MODIFIED="1518487921065" TEXT="erweitere Variante von drillDown()">
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 </node>
-<node CREATED="1509475823750" FOLDED="true" ID="ID_1076784903" MODIFIED="1531584014135" TEXT="Problem: LocationQuery verwenden">
+<node CREATED="1509475823750" ID="ID_1076784903" MODIFIED="1533608413600" TEXT="Problem: LocationQuery verwenden">
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 <node CREATED="1509475849931" ID="ID_313015724" MODIFIED="1518487921065" TEXT="der Baum ist nicht direkt zug&#xe4;nglich"/>
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@@ -4800,13 +4848,13 @@
 </node>
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-<node CREATED="1509476108672" FOLDED="true" ID="ID_609074970" MODIFIED="1525124216340" TEXT="Kern des Problems">
+<node CREATED="1509476108672" FOLDED="true" ID="ID_609074970" MODIFIED="1533608416140" TEXT="Kern des Problems">
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 <node CREATED="1509476118647" ID="ID_1491799749" MODIFIED="1518487921065" TEXT="habe Auswertungs-Zustand"/>
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 </node>
-<node CREATED="1509476154258" FOLDED="true" ID="ID_930376282" MODIFIED="1525124216340" TEXT="m&#xf6;gliche L&#xf6;sungen">
+<node CREATED="1509476154258" FOLDED="true" ID="ID_930376282" MODIFIED="1533608416143" TEXT="m&#xf6;gliche L&#xf6;sungen">
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 <node CREATED="1509476160585" ID="ID_171588117" MODIFIED="1509476184594" TEXT="Zustand opaque verpacken"/>
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@@ -4823,26 +4871,26 @@
 </html></richcontent>
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 </node>
-<node CREATED="1509481823391" FOLDED="true" ID="ID_1204466073" MODIFIED="1525124215536" TEXT="IterExplorer nutzen?">
+<node CREATED="1509481823391" FOLDED="true" ID="ID_1204466073" MODIFIED="1533608415784" TEXT="IterExplorer nutzen?">
 <icon BUILTIN="button_cancel"/>
-<node CREATED="1509481841493" FOLDED="true" ID="ID_125946562" MODIFIED="1525124215521" TEXT="depthFirst">
+<node CREATED="1509481841493" FOLDED="true" ID="ID_125946562" MODIFIED="1533608415372" TEXT="depthFirst">
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 </node>
-<node CREATED="1509481873976" FOLDED="true" ID="ID_1335669968" MODIFIED="1525124215521" TEXT="RecursiveExhaustingEvaluation">
+<node CREATED="1509481873976" FOLDED="true" ID="ID_1335669968" MODIFIED="1533608415374" TEXT="RecursiveExhaustingEvaluation">
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 <node CREATED="1509481901461" ID="ID_1119216150" MODIFIED="1509481908384" TEXT="mit eigener explorer-Funktion"/>
 </node>
-<node CREATED="1509481972452" FOLDED="true" ID="ID_1796930306" MODIFIED="1525124215521" TEXT="RecursiveSelfIntegration">
+<node CREATED="1509481972452" FOLDED="true" ID="ID_1796930306" MODIFIED="1533608415376" TEXT="RecursiveSelfIntegration">
 <node CREATED="1509481981834" ID="ID_312626846" MODIFIED="1509481990157" TEXT="mu&#xdf; dann eigenen Sequenz-Typ verwenden"/>
 <node CREATED="1509481991033" ID="ID_321192742" MODIFIED="1509482002172" TEXT="dieser implementiert die re-Integration selber"/>
 </node>
-<node CREATED="1509482005743" FOLDED="true" ID="ID_156318392" MODIFIED="1525124215522" TEXT="eigenen Combinator">
+<node CREATED="1509482005743" FOLDED="true" ID="ID_156318392" MODIFIED="1533608415378" TEXT="eigenen Combinator">
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 </node>
 </node>
-<node CREATED="1514328717684" FOLDED="true" ID="ID_137835978" MODIFIED="1525124215536" TEXT="neuer Anlauf IterExplorer II">
+<node CREATED="1514328717684" FOLDED="true" ID="ID_137835978" MODIFIED="1533608415786" TEXT="neuer Anlauf IterExplorer II">
 <arrowlink COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" STARTARROW="None" STARTINCLINATION="-387;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514328733272" ID="ID_1367581404" MODIFIED="1514328740811" TEXT="monadisierter Pipeline-Builder"/>
@@ -4850,32 +4898,32 @@
 <node CREATED="1514328757725" ID="ID_1835412332" MODIFIED="1514328766544" TEXT="auch &#xfc;ber Transformer und Abstraktionsbarrieren hinweg"/>
 </node>
 </node>
-<node CREATED="1509495634766" FOLDED="true" ID="ID_422767906" MODIFIED="1525124216341" TEXT="Zusammenspiel">
+<node CREATED="1509495634766" FOLDED="true" ID="ID_422767906" MODIFIED="1533608416148" TEXT="Zusammenspiel">
 <icon BUILTIN="info"/>
-<node CREATED="1509491594115" FOLDED="true" ID="ID_214903834" MODIFIED="1525124215536" TEXT="was tr&#xe4;gt LocationQuery bei?">
+<node CREATED="1509491594115" FOLDED="true" ID="ID_214903834" MODIFIED="1533608415788" TEXT="was tr&#xe4;gt LocationQuery bei?">
 <icon BUILTIN="help"/>
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 </node>
-<node CREATED="1509495646276" FOLDED="true" ID="ID_167277646" MODIFIED="1525124215537" TEXT="was tr&#xe4;gt der Resolver bei?">
+<node CREATED="1509495646276" FOLDED="true" ID="ID_167277646" MODIFIED="1533608415790" TEXT="was tr&#xe4;gt der Resolver bei?">
 <icon BUILTIN="help"/>
 <node CREATED="1509495661042" ID="ID_653601777" MODIFIED="1509495669717" TEXT="den zu interpolierenden Pfad"/>
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 </node>
-<node CREATED="1509500182205" FOLDED="true" ID="ID_265529571" MODIFIED="1525124215537" TEXT="wie wird die L&#xf6;sung gebildet?">
+<node CREATED="1509500182205" FOLDED="true" ID="ID_265529571" MODIFIED="1533608415795" TEXT="wie wird die L&#xf6;sung gebildet?">
 <icon BUILTIN="help"/>
-<node CREATED="1509500778214" FOLDED="true" ID="ID_205493443" MODIFIED="1525124215522" TEXT="immer wenn ein Zweig ausgesch&#xf6;pft ist">
+<node CREATED="1509500778214" FOLDED="true" ID="ID_205493443" MODIFIED="1533608415382" TEXT="immer wenn ein Zweig ausgesch&#xf6;pft ist">
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 <node CREATED="1509500824008" ID="ID_131979876" MODIFIED="1509500843970" TEXT="dann den aktuellen Pfad von der Wurzel &quot;abwerfen&quot;"/>
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-<node CREATED="1509500882017" FOLDED="true" ID="ID_1192819328" MODIFIED="1525124215537" TEXT="Problem: Backtracking">
+<node CREATED="1509500882017" FOLDED="true" ID="ID_1192819328" MODIFIED="1533608415801" TEXT="Problem: Backtracking">
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-<node CREATED="1509500998401" FOLDED="true" ID="ID_566603059" MODIFIED="1525124215522" TEXT="Pfade sind vorw&#xe4;rts verlinkt">
+<node CREATED="1509500998401" FOLDED="true" ID="ID_566603059" MODIFIED="1533608415386" TEXT="Pfade sind vorw&#xe4;rts verlinkt">
 <icon BUILTIN="messagebox_warning"/>
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 <richcontent TYPE="NODE"><html>
@@ -4909,11 +4957,11 @@
 </node>
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-<node CREATED="1509581231027" FOLDED="true" HGAP="73" ID="ID_1779465547" MODIFIED="1525124215537" TEXT="m&#xf6;glicher Ablauf" VSHIFT="18">
+<node CREATED="1509581231027" FOLDED="true" HGAP="73" ID="ID_1779465547" MODIFIED="1533608415805" TEXT="m&#xf6;glicher Ablauf" VSHIFT="18">
 <node CREATED="1509581241161" ID="ID_1629692107" MODIFIED="1509915202592" TEXT="UICoordResolver pullt Ergebnis(se)">
 <icon BUILTIN="forward"/>
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-<node BACKGROUND_COLOR="#b4d1df" CREATED="1509581679727" FOLDED="true" HGAP="39" ID="ID_501629316" MODIFIED="1525124215522" STYLE="bubble" TEXT="f&#xfc;r alle Kinder" VSHIFT="7">
+<node BACKGROUND_COLOR="#b4d1df" CREATED="1509581679727" FOLDED="true" HGAP="39" ID="ID_501629316" MODIFIED="1533608415388" STYLE="bubble" TEXT="f&#xfc;r alle Kinder" VSHIFT="7">
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@@ -4973,7 +5021,7 @@
 <arrowlink COLOR="#172fd9" DESTINATION="ID_501629316" ENDARROW="Default" ENDINCLINATION="25;50;" ID="Arrow_ID_901660904" STARTARROW="None" STARTINCLINATION="8;-10;"/>
 </node>
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+<node CREATED="1509583164196" FOLDED="true" HGAP="45" ID="ID_1054378844" MODIFIED="1533608415807" VSHIFT="18">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4988,7 +5036,7 @@
   </body>
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 <icon BUILTIN="help"/>
-<node CREATED="1509583603442" FOLDED="true" ID="ID_1654046432" MODIFIED="1525124215522" TEXT="Aufgabe">
+<node CREATED="1509583603442" FOLDED="true" ID="ID_1654046432" MODIFIED="1533608415392" TEXT="Aufgabe">
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@@ -5002,7 +5050,7 @@
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-<node CREATED="1510266814301" FOLDED="true" ID="ID_1831665335" MODIFIED="1525124215522" TEXT="Ansatz">
+<node CREATED="1510266814301" FOLDED="true" ID="ID_1831665335" MODIFIED="1533608415397" TEXT="Ansatz">
 <node CREATED="1510266817500" FOLDED="true" ID="ID_1438980093" MODIFIED="1525124215509" TEXT="3 Layer verwenden">
 <icon BUILTIN="idea"/>
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@@ -5385,9 +5433,9 @@
 </node>
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-<node COLOR="#338800" CREATED="1510941382478" FOLDED="true" ID="ID_667413818" MODIFIED="1525124215537" TEXT="generische L&#xf6;sung">
+<node COLOR="#338800" CREATED="1510941382478" FOLDED="true" ID="ID_667413818" MODIFIED="1533608415812" TEXT="generische L&#xf6;sung">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1510941425200" FOLDED="true" ID="ID_1773303405" MODIFIED="1525124215522" TEXT="Vorgabe">
+<node CREATED="1510941425200" FOLDED="true" ID="ID_1773303405" MODIFIED="1533608415399" TEXT="Vorgabe">
 <icon BUILTIN="yes"/>
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@@ -5396,7 +5444,7 @@
 <icon BUILTIN="bell"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941455667" FOLDED="true" ID="ID_1945607867" MODIFIED="1525124215522" TEXT="Builder">
+<node COLOR="#338800" CREATED="1510941455667" FOLDED="true" ID="ID_1945607867" MODIFIED="1533608415402" TEXT="Builder">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1511054840038" FOLDED="true" ID="ID_18464349" MODIFIED="1525124215509" TEXT="brauch ich am Ende &#xfc;berhaupt einen builder">
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@@ -5444,7 +5492,7 @@
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-<node COLOR="#338800" CREATED="1510941463562" FOLDED="true" ID="ID_845080696" MODIFIED="1525124215523" TEXT="TreeExplorer">
+<node COLOR="#338800" CREATED="1510941463562" FOLDED="true" ID="ID_845080696" MODIFIED="1533608415412" TEXT="TreeExplorer">
 <linktarget COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" SOURCE="ID_137835978" STARTARROW="None" STARTINCLINATION="-387;0;"/>
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 <linktarget COLOR="#585e9d" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-23;161;" ID="Arrow_ID_402051988" SOURCE="ID_1359727169" STARTARROW="None" STARTINCLINATION="138;6;"/>
@@ -7065,7 +7113,7 @@
 </node>
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 </node>
-<node COLOR="#338800" CREATED="1510941467586" FOLDED="true" ID="ID_381928532" MODIFIED="1525124215523" TEXT="TreeExplorer_test">
+<node COLOR="#338800" CREATED="1510941467586" FOLDED="true" ID="ID_381928532" MODIFIED="1533608415426" TEXT="TreeExplorer_test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1510969031378" FOLDED="true" ID="ID_1678287752" MODIFIED="1525124215511" TEXT="verify_wrappedIterator();">
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@@ -7919,7 +7967,7 @@
 </node>
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 </node>
-<node COLOR="#338800" CREATED="1510941646050" FOLDED="true" ID="ID_596422747" MODIFIED="1525124216341" TEXT="expandable ChildIter">
+<node COLOR="#338800" CREATED="1510941646050" FOLDED="true" ID="ID_596422747" MODIFIED="1533608416151" TEXT="expandable ChildIter">
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 <icon BUILTIN="button_ok"/>
@@ -7930,16 +7978,16 @@
 <node COLOR="#338800" CREATED="1510941661615" ID="ID_463290050" MODIFIED="1514292291295" TEXT="verpackt in IterSource">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1513561602173" FOLDED="true" HGAP="180" ID="ID_760843174" MODIFIED="1525124215537" TEXT="Design" VSHIFT="29">
+<node COLOR="#338800" CREATED="1513561602173" FOLDED="true" HGAP="180" ID="ID_760843174" MODIFIED="1533608415817" TEXT="Design" VSHIFT="29">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1513560607636" FOLDED="true" ID="ID_774099115" MODIFIED="1525124215523" TEXT="expand -- wie?">
+<node CREATED="1513560607636" FOLDED="true" ID="ID_774099115" MODIFIED="1533608415430" TEXT="expand -- wie?">
 <icon BUILTIN="help"/>
 <node CREATED="1513560618698" ID="ID_471382650" MODIFIED="1513560638771" TEXT="Brauche Navigations-Zustand"/>
 <node CREATED="1513560639504" ID="ID_1901070791" MODIFIED="1513560645283" TEXT="eine Position im Baum"/>
 <node CREATED="1513560646014" ID="ID_812625308" MODIFIED="1513560649570" TEXT="implementation defined"/>
 <node CREATED="1513560650614" ID="ID_127083955" MODIFIED="1513560657793" TEXT="mu&#xdf; dort Kind-iterieren k&#xf6;nnen"/>
 </node>
-<node CREATED="1513561422541" FOLDED="true" ID="ID_1500554436" MODIFIED="1525124215523" TEXT="was ist depth()?">
+<node CREATED="1513561422541" FOLDED="true" ID="ID_1500554436" MODIFIED="1533608415434" TEXT="was ist depth()?">
 <arrowlink COLOR="#62326e" DESTINATION="ID_1709677569" ENDARROW="Default" ENDINCLINATION="-209;-29;" ID="Arrow_ID_894748806" STARTARROW="Default" STARTINCLINATION="43;132;"/>
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 <icon BUILTIN="help"/>
@@ -7955,7 +8003,7 @@
 <node CREATED="1513561531383" ID="ID_442154302" MODIFIED="1513561547728" TEXT="Match-Algo mu&#xdf; start-Offset verwalten und draufschlagen"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513561577840" FOLDED="true" HGAP="63" ID="ID_260039139" MODIFIED="1525124215523" TEXT="Struktur Navigations-Zustand" VSHIFT="22">
+<node COLOR="#338800" CREATED="1513561577840" FOLDED="true" HGAP="63" ID="ID_260039139" MODIFIED="1533608415440" TEXT="Struktur Navigations-Zustand" VSHIFT="22">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513561744004" ID="ID_937539446" MODIFIED="1513961543467" TEXT="h&#xe4;ngt ab von relativ/absolut?">
 <arrowlink COLOR="#9493b7" DESTINATION="ID_1500554436" ENDARROW="Default" ENDINCLINATION="91;103;" ID="Arrow_ID_811314610" STARTARROW="None" STARTINCLINATION="-39;0;"/>
@@ -8251,7 +8299,7 @@
 </node>
 </node>
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-<node CREATED="1513961595678" FOLDED="true" HGAP="101" ID="ID_66715685" MODIFIED="1525124215523" TEXT="Beschlu&#xdf;" VSHIFT="26">
+<node CREATED="1513961595678" FOLDED="true" HGAP="101" ID="ID_66715685" MODIFIED="1533608415448" TEXT="Beschlu&#xdf;" VSHIFT="26">
 <icon BUILTIN="yes"/>
 <node CREATED="1513961667045" ID="ID_688351481" MODIFIED="1513962278992" TEXT="nur Verwenden von bestehenden Bausteinen">
 <richcontent TYPE="NOTE"><html>
@@ -8335,9 +8383,9 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513961620603" FOLDED="true" ID="ID_1014293898" MODIFIED="1525124215537" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1513961620603" FOLDED="true" ID="ID_1014293898" MODIFIED="1533608415821" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1513962702097" FOLDED="true" ID="ID_1829231358" MODIFIED="1525124215523" TEXT="Iterator-Typ konstruieren">
+<node COLOR="#338800" CREATED="1513962702097" FOLDED="true" ID="ID_1829231358" MODIFIED="1533608415452" TEXT="Iterator-Typ konstruieren">
 <arrowlink COLOR="#1d3877" DESTINATION="ID_989478065" ENDARROW="Default" ENDINCLINATION="33;-151;" ID="Arrow_ID_1500458185" STARTARROW="Default" STARTINCLINATION="-102;2;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513966648491" FOLDED="true" ID="ID_558045889" MODIFIED="1525124215513" TEXT="Anforderungen">
@@ -8420,7 +8468,7 @@
 </node>
 </node>
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-<node COLOR="#338800" CREATED="1513962712192" FOLDED="true" ID="ID_357363842" MODIFIED="1525124215524" TEXT="festlegen, wo die VTable ist">
+<node COLOR="#338800" CREATED="1513962712192" FOLDED="true" ID="ID_357363842" MODIFIED="1533608415454" TEXT="festlegen, wo die VTable ist">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513978430367" ID="ID_616991569" MODIFIED="1513978446605" TEXT="Nav und Iter">
 <icon BUILTIN="yes"/>
@@ -8429,7 +8477,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513986023498" FOLDED="true" ID="ID_1413967372" MODIFIED="1525124215524" TEXT="Integration mit TreeExplorer">
+<node COLOR="#338800" CREATED="1513986023498" FOLDED="true" ID="ID_1413967372" MODIFIED="1533608415457" TEXT="Integration mit TreeExplorer">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513986032290" FOLDED="true" ID="ID_1427647343" MODIFIED="1525124215513" TEXT="Problem: Zugang zur IterSource">
 <icon BUILTIN="messagebox_warning"/>
@@ -8475,7 +8523,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513962765760" FOLDED="true" ID="ID_795911284" MODIFIED="1525124215524" TEXT="Demo-Impl mit GenNode-Tree">
+<node COLOR="#338800" CREATED="1513962765760" FOLDED="true" ID="ID_795911284" MODIFIED="1533608415461" TEXT="Demo-Impl mit GenNode-Tree">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514153936376" ID="ID_10587919" MODIFIED="1514153997161" TEXT="brauche neuen Builder">
 <icon BUILTIN="button_ok"/>
@@ -8538,13 +8586,13 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941577099" FOLDED="true" ID="ID_394904963" MODIFIED="1531584014136" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1510941577099" ID="ID_394904963" MODIFIED="1533608413635" TEXT="Implementierung">
 <linktarget COLOR="#653655" DESTINATION="ID_394904963" ENDARROW="Default" ENDINCLINATION="606;374;" ID="Arrow_ID_1674594671" SOURCE="ID_286375730" STARTARROW="None" STARTINCLINATION="863;77;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1510941687588" ID="ID_601914095" MODIFIED="1518487921065" TEXT="beispielhaft f&#xfc;r GenNode umsetzen">
 <icon BUILTIN="yes"/>
 </node>
-<node COLOR="#338800" CREATED="1510941740069" FOLDED="true" ID="ID_1408571420" MODIFIED="1525124216341" TEXT="erweiterter ChildIter">
+<node COLOR="#338800" CREATED="1510941740069" FOLDED="true" ID="ID_1408571420" MODIFIED="1533608416154" TEXT="erweiterter ChildIter">
 <arrowlink COLOR="#283b63" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="66;49;" ID="Arrow_ID_1521598219" STARTARROW="Default" STARTINCLINATION="94;-19;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1513560671819" ID="ID_989478065" MODIFIED="1514292039775" TEXT="Interface umstellen">
@@ -8557,10 +8605,10 @@
 <node COLOR="#338800" CREATED="1513560690440" ID="ID_122153660" MODIFIED="1514154026278" TEXT="Spezial-Behandlung f&#xfc;r Perspektive">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1514154062952" FOLDED="true" ID="ID_1352163554" MODIFIED="1525124215538" TEXT="Child-Expansion">
+<node COLOR="#338800" CREATED="1514154062952" FOLDED="true" ID="ID_1352163554" MODIFIED="1533608415822" TEXT="Child-Expansion">
 <arrowlink COLOR="#477889" DESTINATION="ID_1077665588" ENDARROW="Default" ENDINCLINATION="-191;0;" ID="Arrow_ID_1839260012" STARTARROW="None" STARTINCLINATION="277;0;"/>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1514260922259" FOLDED="true" HGAP="37" ID="ID_1286151530" MODIFIED="1525124215524" TEXT="Test..." VSHIFT="25">
+<node COLOR="#338800" CREATED="1514260922259" FOLDED="true" HGAP="37" ID="ID_1286151530" MODIFIED="1533608415466" TEXT="Test..." VSHIFT="25">
 <arrowlink COLOR="#525e89" DESTINATION="ID_113366695" ENDARROW="Default" ENDINCLINATION="125;-4;" ID="Arrow_ID_1734399897" STARTARROW="None" STARTINCLINATION="-10;85;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514261132830" ID="ID_1081488387" MODIFIED="1514292004576" TEXT="einfache Kinder">
@@ -8582,21 +8630,21 @@
 </node>
 </node>
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-<node COLOR="#338800" CREATED="1510941748388" FOLDED="true" HGAP="38" ID="ID_209463158" MODIFIED="1525124216341" TEXT="Zustands-Layer" VSHIFT="1">
+<node COLOR="#338800" CREATED="1510941748388" FOLDED="true" HGAP="38" ID="ID_209463158" MODIFIED="1533608416157" TEXT="Zustands-Layer" VSHIFT="1">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1514333524247" FOLDED="true" ID="ID_1136271037" MODIFIED="1525124215538" TEXT="Zustand umfa&#xdf;t...">
+<node COLOR="#338800" CREATED="1514333524247" FOLDED="true" ID="ID_1136271037" MODIFIED="1533608415826" TEXT="Zustand umfa&#xdf;t...">
 <icon BUILTIN="info"/>
 <node CREATED="1514333554411" ID="ID_1337747593" MODIFIED="1514333618358" TEXT="target (Pattern) const&amp;"/>
 <node CREATED="1514333705095" ID="ID_709075863" MODIFIED="1514898052783" TEXT="coverage (Builder)"/>
-<node CREATED="1514333719613" FOLDED="true" ID="ID_256774095" MODIFIED="1525124215524" TEXT="navigator">
+<node CREATED="1514333719613" FOLDED="true" ID="ID_256774095" MODIFIED="1533608415469" TEXT="navigator">
 <node CREATED="1514333779158" ID="ID_1595920355" MODIFIED="1514333782280" TEXT="current ID"/>
 <node CREATED="1514333767470" ID="ID_1575075730" MODIFIED="1514898072757" TEXT="depth"/>
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 <node CREATED="1514333825991" ID="ID_541168831" MODIFIED="1514898080652" TEXT="isSolution (implizit)"/>
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-<node COLOR="#338800" CREATED="1514338393316" FOLDED="true" ID="ID_1224653593" MODIFIED="1525124215538" TEXT="f&#xfc;r jedes Element...">
+<node COLOR="#338800" CREATED="1514338393316" FOLDED="true" ID="ID_1224653593" MODIFIED="1533608415828" TEXT="f&#xfc;r jedes Element...">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1514338471073" FOLDED="true" ID="ID_1000829527" MODIFIED="1525124215524" STYLE="bubble" TEXT="target[depth] ==?">
+<node CREATED="1514338471073" FOLDED="true" ID="ID_1000829527" MODIFIED="1533608415472" STYLE="bubble" TEXT="target[depth] ==?">
 <edge COLOR="#5b5ea6"/>
 <node CREATED="1514338493135" FOLDED="true" ID="ID_1691944473" MODIFIED="1525124215513" TEXT="Ausgang wenn...">
 <node CREATED="1514340242945" ID="ID_150794139" MODIFIED="1514908827230" TEXT="target zuende"/>
@@ -8639,7 +8687,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
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-<node COLOR="#338800" CREATED="1514828322209" FOLDED="true" HGAP="447" ID="ID_868482472" MODIFIED="1525124215538" TEXT="Implementierung" VSHIFT="24">
+<node COLOR="#338800" CREATED="1514828322209" FOLDED="true" HGAP="447" ID="ID_868482472" MODIFIED="1533608415833" TEXT="Implementierung" VSHIFT="24">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514828365236" ID="ID_596741108" MODIFIED="1514828377582" TEXT="per Seiteneffekt auf den privaten Resolver-state"/>
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@@ -8654,7 +8702,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1514847720759" FOLDED="true" ID="ID_831358447" MODIFIED="1525124215524" TEXT="Struktur">
+<node CREATED="1514847720759" FOLDED="true" ID="ID_831358447" MODIFIED="1533608415476" TEXT="Struktur">
 <node CREATED="1514847726158" FOLDED="true" ID="ID_460639525" MODIFIED="1525124215514" TEXT="wo brauche ich Builder?">
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 <icon BUILTIN="smily_bad"/>
@@ -8685,7 +8733,7 @@
 <node CREATED="1514847950576" ID="ID_1211653233" MODIFIED="1514850848636" TEXT="normalisiert automatisch beim Abholen des Ergebnisses"/>
 </node>
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-<node COLOR="#338800" CREATED="1514942333406" FOLDED="true" ID="ID_1235716633" MODIFIED="1525124215524" TEXT="Ankern unvollst&#xe4;ndiger Pfade">
+<node COLOR="#338800" CREATED="1514942333406" FOLDED="true" ID="ID_1235716633" MODIFIED="1533608415481" TEXT="Ankern unvollst&#xe4;ndiger Pfade">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514942350940" ID="ID_1658536334" MODIFIED="1515034261027" TEXT="erweitertes Verst&#xe4;ndnis von &quot;Wildcard&quot;">
 <icon BUILTIN="button_ok"/>
@@ -8734,7 +8782,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514897795054" FOLDED="true" ID="ID_1126804251" MODIFIED="1525124215525" TEXT="Erweiterung: verschiedne Filter">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514897795054" FOLDED="true" ID="ID_1126804251" MODIFIED="1533608415483" TEXT="Erweiterung: verschiedne Filter">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1515034405447" ID="ID_1908721517" MODIFIED="1515034409410" TEXT="YAGNI"/>
 <node CREATED="1515034414286" ID="ID_216901407" MODIFIED="1515034430396" TEXT="kann mir jetzt keinen wirklichen Nutzen daf&#xfc;r vorstellen">
@@ -8742,7 +8790,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1514339655585" FOLDED="true" ID="ID_20763657" MODIFIED="1525124215538" TEXT="brauche">
+<node CREATED="1514339655585" FOLDED="true" ID="ID_20763657" MODIFIED="1533608415837" TEXT="brauche">
 <icon BUILTIN="forward"/>
 <node CREATED="1514339665248" ID="ID_1142507602" MODIFIED="1514339776889" TEXT="low-level-Operation">
 <richcontent TYPE="NOTE"><html>
@@ -8762,13 +8810,13 @@
 </html></richcontent>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
-<node COLOR="#338800" CREATED="1514339673519" FOLDED="true" ID="ID_1697551113" MODIFIED="1525124215525" TEXT="writeAt">
+<node COLOR="#338800" CREATED="1514339673519" FOLDED="true" ID="ID_1697551113" MODIFIED="1533608415486" TEXT="writeAt">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514339689469" ID="ID_686921797" MODIFIED="1514339694112" TEXT="erweitert bei Bedarf"/>
 <node CREATED="1514339695220" ID="ID_1819447572" MODIFIED="1514339700103" TEXT="&#xfc;berschreibt Position"/>
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 </node>
-<node COLOR="#338800" CREATED="1514746187370" FOLDED="true" ID="ID_989083906" MODIFIED="1525124215525" TEXT="Problem der partiellen Covfefe">
+<node COLOR="#338800" CREATED="1514746187370" FOLDED="true" ID="ID_989083906" MODIFIED="1533608415491" TEXT="Problem der partiellen Covfefe">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514746268280" FOLDED="true" ID="ID_1650861625" MODIFIED="1525124215514" TEXT="totale Coverage ist einfach">
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@@ -8805,7 +8853,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514746923713" FOLDED="true" ID="ID_1928999977" MODIFIED="1525124215525" TEXT="scheduleExpansion">
+<node COLOR="#338800" CREATED="1514746923713" FOLDED="true" ID="ID_1928999977" MODIFIED="1533608415494" TEXT="scheduleExpansion">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514746932144" ID="ID_1456732951" MODIFIED="1514897708074" TEXT="neue TreeExplorer-Operation"/>
 <node CREATED="1514746940111" ID="ID_899254883" MODIFIED="1514897708074" TEXT="sieht eine child-Expansion bei n&#xe4;chster Iteration vor">
@@ -8818,7 +8866,7 @@
 </node>
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-<node COLOR="#338800" CREATED="1510941754211" FOLDED="true" HGAP="36" ID="ID_996085388" MODIFIED="1525124216341" TEXT="Filter-Layer" VSHIFT="-1">
+<node COLOR="#338800" CREATED="1510941754211" FOLDED="true" HGAP="36" ID="ID_996085388" MODIFIED="1533608416159" TEXT="Filter-Layer" VSHIFT="-1">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514747460122" ID="ID_1735380227" MODIFIED="1514908757875" TEXT="fischt nach tats&#xe4;chlichen L&#xf6;sungen">
 <icon BUILTIN="button_ok"/>
@@ -8826,7 +8874,7 @@
 <node CREATED="1514747470624" ID="ID_43243557" MODIFIED="1514827781975" TEXT="erm&#xf6;glicht partielle und maximale L&#xf6;sungen">
 <linktarget COLOR="#426785" DESTINATION="ID_43243557" ENDARROW="Default" ENDINCLINATION="156;-113;" ID="Arrow_ID_977247001" SOURCE="ID_1714254434" STARTARROW="None" STARTINCLINATION="-109;6;"/>
 </node>
-<node CREATED="1514747496973" FOLDED="true" ID="ID_1992822141" MODIFIED="1525124215538" TEXT="F&#xe4;lle">
+<node CREATED="1514747496973" FOLDED="true" ID="ID_1992822141" MODIFIED="1533608415841" TEXT="F&#xe4;lle">
 <linktarget COLOR="#7e90a1" DESTINATION="ID_1992822141" ENDARROW="Default" ENDINCLINATION="0;56;" ID="Arrow_ID_26195276" SOURCE="ID_1556354374" STARTARROW="Default" STARTINCLINATION="-20;-69;"/>
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 <icon BUILTIN="hourglass"/>
@@ -8840,7 +8888,7 @@
 <node CREATED="1514747534880" ID="ID_668507058" MODIFIED="1515031542774" TEXT="alle maximalen partiellen L&#xf6;sungen">
 <icon BUILTIN="hourglass"/>
 </node>
-<node CREATED="1514747542535" FOLDED="true" ID="ID_1475644253" MODIFIED="1525124215525" TEXT="alle lokal maximalen partiellen L&#xf6;sungen">
+<node CREATED="1514747542535" FOLDED="true" ID="ID_1475644253" MODIFIED="1533608415498" TEXT="alle lokal maximalen partiellen L&#xf6;sungen">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1514747562436" ID="ID_1216946339" MODIFIED="1514747569143" TEXT="am Ende einer Gl&#xfc;cksstr&#xe4;ne"/>
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@@ -8849,14 +8897,14 @@
 </node>
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-<node COLOR="#338800" CREATED="1514829169777" FOLDED="true" HGAP="32" ID="ID_331008637" MODIFIED="1525124216341" TEXT="Integration" VSHIFT="10">
+<node COLOR="#338800" CREATED="1514829169777" FOLDED="true" HGAP="32" ID="ID_331008637" MODIFIED="1533608416162" TEXT="Integration" VSHIFT="10">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1514829220907" FOLDED="true" ID="ID_1488508113" MODIFIED="1525124215538" TEXT="zun&#xe4;chst Algo f&#xfc;r partielle Coverage bauen">
+<node COLOR="#338800" CREATED="1514829220907" FOLDED="true" ID="ID_1488508113" MODIFIED="1533608415845" TEXT="zun&#xe4;chst Algo f&#xfc;r partielle Coverage bauen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514829338427" ID="ID_623381151" MODIFIED="1515034463168" TEXT="Zustandstyp">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1514829343538" FOLDED="true" ID="ID_61753442" MODIFIED="1525124215525" TEXT="Transformer auf Zustand">
+<node CREATED="1514829343538" FOLDED="true" ID="ID_61753442" MODIFIED="1533608415500" TEXT="Transformer auf Zustand">
 <icon BUILTIN="button_cancel"/>
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 <node CREATED="1514850795678" ID="ID_497352305" MODIFIED="1514850803482" TEXT="Zustand per Seiteneffekt">
@@ -8870,7 +8918,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514829412249" FOLDED="true" ID="ID_1641757769" MODIFIED="1525124215538" TEXT="Einbindung Resolution-State">
+<node COLOR="#338800" CREATED="1514829412249" FOLDED="true" ID="ID_1641757769" MODIFIED="1533608415848" TEXT="Einbindung Resolution-State">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514829452692" ID="ID_1692090746" MODIFIED="1515034463169" TEXT="nested Class">
 <icon BUILTIN="button_ok"/>
@@ -8885,7 +8933,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1514829238960" FOLDED="true" ID="ID_1556354374" MODIFIED="1525124215538" TEXT="Varianten definieren">
+<node COLOR="#990000" CREATED="1514829238960" FOLDED="true" ID="ID_1556354374" MODIFIED="1533608415851" TEXT="Varianten definieren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -8911,7 +8959,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514848454621" FOLDED="true" ID="ID_472406160" MODIFIED="1525124215539" TEXT="std::swap f&#xfc;r UICoord">
+<node COLOR="#338800" CREATED="1514848454621" FOLDED="true" ID="ID_472406160" MODIFIED="1533608415854" TEXT="std::swap f&#xfc;r UICoord">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514848818421" ID="ID_26529397" MODIFIED="1515206142953" TEXT="vermutlich (fast) nix zu tun">
 <richcontent TYPE="NOTE"><html>
@@ -8930,7 +8978,7 @@
   </body>
 </html></richcontent>
 </node>
-<node COLOR="#338800" CREATED="1514848861831" FOLDED="true" ID="ID_297570158" MODIFIED="1525124215525" TEXT="noexcept() bedenken">
+<node COLOR="#338800" CREATED="1514848861831" FOLDED="true" ID="ID_297570158" MODIFIED="1533608415503" TEXT="noexcept() bedenken">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515206011718" ID="ID_1572220372" MODIFIED="1515206130684" TEXT="std::Array hat impliziten move-ctor">
 <icon BUILTIN="idea"/>
@@ -8946,7 +8994,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514829244384" FOLDED="true" ID="ID_174527898" MODIFIED="1525124215539" TEXT="API umstellen">
+<node COLOR="#338800" CREATED="1514829244384" FOLDED="true" ID="ID_174527898" MODIFIED="1533608415856" TEXT="API umstellen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514942071848" ID="ID_642968204" MODIFIED="1515034463169" TEXT="totale Coverage wird default">
 <icon BUILTIN="button_ok"/>
@@ -8972,7 +9020,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941766817" FOLDED="true" HGAP="13" ID="ID_1117346518" MODIFIED="1525124216341" TEXT="Testf&#xe4;lle" VSHIFT="29">
+<node COLOR="#338800" CREATED="1510941766817" FOLDED="true" HGAP="13" ID="ID_1117346518" MODIFIED="1533608416166" TEXT="Testf&#xe4;lle" VSHIFT="29">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1513477873206" ID="ID_939423021" MODIFIED="1518487921065" TEXT="definieren was abzudecken ist...">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -8985,7 +9033,7 @@
 <linktarget COLOR="#525e89" DESTINATION="ID_113366695" ENDARROW="Default" ENDINCLINATION="125;-4;" ID="Arrow_ID_1734399897" SOURCE="ID_1286151530" STARTARROW="None" STARTINCLINATION="-10;85;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#3b5a89" CREATED="1514292065333" FOLDED="true" ID="ID_1133433583" MODIFIED="1525124215539" TEXT="Frage: expliziter Test f&#xfc;r path resolution?">
+<node COLOR="#3b5a89" CREATED="1514292065333" FOLDED="true" ID="ID_1133433583" MODIFIED="1533608415859" TEXT="Frage: expliziter Test f&#xfc;r path resolution?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -9011,11 +9059,11 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1514329328840" FOLDED="true" HGAP="35" ID="ID_1362494392" MODIFIED="1525124215539" TEXT="Abzudecken ist...." VSHIFT="4">
+<node CREATED="1514329328840" FOLDED="true" HGAP="35" ID="ID_1362494392" MODIFIED="1533608415865" TEXT="Abzudecken ist...." VSHIFT="4">
 <linktarget COLOR="#715b79" DESTINATION="ID_1362494392" ENDARROW="Default" ENDINCLINATION="-578;-16;" ID="Arrow_ID_1072715196" SOURCE="ID_1751192686" STARTARROW="None" STARTINCLINATION="477;0;"/>
 <linktarget COLOR="#4b5c8d" DESTINATION="ID_1362494392" ENDARROW="Default" ENDINCLINATION="398;572;" ID="Arrow_ID_82261909" SOURCE="ID_1688800613" STARTARROW="None" STARTINCLINATION="1404;115;"/>
 <icon BUILTIN="yes"/>
-<node COLOR="#338800" CREATED="1514329411197" FOLDED="true" ID="ID_1637267494" MODIFIED="1525124215525" TEXT="Trivial-Fall: bestehenden Pfad finden">
+<node COLOR="#338800" CREATED="1514329411197" FOLDED="true" ID="ID_1637267494" MODIFIED="1533608415506" TEXT="Trivial-Fall: bestehenden Pfad finden">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514329441136" ID="ID_359779455" MODIFIED="1518487921065" TEXT="mit unvollst&#xe4;ndiger Coverage">
 <icon BUILTIN="button_ok"/>
@@ -9024,7 +9072,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1515114713029" FOLDED="true" ID="ID_424458820" MODIFIED="1525124215525" TEXT="Ankern">
+<node COLOR="#338800" CREATED="1515114713029" FOLDED="true" ID="ID_424458820" MODIFIED="1533608415508" TEXT="Ankern">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514745345018" ID="ID_1229106293" MODIFIED="1518487921065" TEXT="fehlender Anker allein">
 <icon BUILTIN="button_ok"/>
@@ -9033,7 +9081,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1515114740273" FOLDED="true" ID="ID_224432926" MODIFIED="1525124215525" TEXT="interpolieren">
+<node COLOR="#338800" CREATED="1515114740273" FOLDED="true" ID="ID_224432926" MODIFIED="1533608415516" TEXT="interpolieren">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514329498169" ID="ID_259096801" MODIFIED="1518487921065" TEXT="einfache L&#xfc;cke schlie&#xdf;en">
 <icon BUILTIN="button_ok"/>
@@ -9076,7 +9124,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514329861519" FOLDED="true" ID="ID_946875811" MODIFIED="1525124215526" TEXT="Scheitern">
+<node COLOR="#338800" CREATED="1514329861519" FOLDED="true" ID="ID_946875811" MODIFIED="1533608415523" TEXT="Scheitern">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514329465117" FOLDED="true" ID="ID_1304144230" MODIFIED="1525124215514" TEXT="trailing Wildcards scheitern">
 <icon BUILTIN="button_cancel"/>
@@ -9117,7 +9165,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514329636838" FOLDED="true" ID="ID_815146070" MODIFIED="1525124215526" TEXT="L&#xf6;sungs-Auswahl">
+<node COLOR="#338800" CREATED="1514329636838" FOLDED="true" ID="ID_815146070" MODIFIED="1533608415528" TEXT="L&#xf6;sungs-Auswahl">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514329649868" ID="ID_1490593624" MODIFIED="1518487921066" TEXT="erste von zwei &#xe4;quivalenten L&#xf6;sungen">
 <icon BUILTIN="button_ok"/>
@@ -9135,7 +9183,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1518051827562" FOLDED="true" ID="ID_126260279" MODIFIED="1525124215526" TEXT="partielle coverage mit Rest">
+<node COLOR="#338800" CREATED="1518051827562" FOLDED="true" ID="ID_126260279" MODIFIED="1533608415532" TEXT="partielle coverage mit Rest">
 <linktarget COLOR="#647a94" DESTINATION="ID_126260279" ENDARROW="Default" ENDINCLINATION="-70;102;" ID="Arrow_ID_1703739591" SOURCE="ID_1400256094" STARTARROW="None" STARTINCLINATION="417;-7;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518051858813" ID="ID_712764658" MODIFIED="1518487921066" TEXT="Erfolg: alles explizit, teilweise gecovert">
@@ -9159,7 +9207,7 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514748438984" ID="ID_84241950" MODIFIED="1518487921066" TEXT="reflektiert letzte L&#xf6;sung"/>
 <node CREATED="1514748445520" ID="ID_728061293" MODIFIED="1518487921066" TEXT="*this = move (Coverage)"/>
-<node COLOR="#338800" CREATED="1514748450687" FOLDED="true" ID="ID_919694647" MODIFIED="1531584014136" TEXT="default: total">
+<node COLOR="#338800" CREATED="1514748450687" ID="ID_919694647" MODIFIED="1533608413663" TEXT="default: total">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514748463645" ID="ID_2814761" MODIFIED="1518487921066" TEXT="TODO: &#xe4;ndern">
 <icon BUILTIN="button_ok"/>
@@ -9208,7 +9256,7 @@
 <node COLOR="#338800" CREATED="1515451127221" ID="ID_130067342" MODIFIED="1515460212289" TEXT="durch (partielle) UI-Coord spec">
 <linktarget COLOR="#4f6f95" DESTINATION="ID_130067342" ENDARROW="Default" ENDINCLINATION="544;89;" ID="Arrow_ID_992203487" SOURCE="ID_1736775031" STARTARROW="None" STARTINCLINATION="704;0;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1515455194222" FOLDED="true" ID="ID_1550640486" MODIFIED="1531584014137" TEXT="brauche (nun doch) overwrite">
+<node CREATED="1515455194222" ID="ID_1550640486" MODIFIED="1533608413663" TEXT="brauche (nun doch) overwrite">
 <icon BUILTIN="yes"/>
 <node CREATED="1515455204572" ID="ID_538708318" MODIFIED="1515455215023" TEXT="im UI-Coord-Builder ansiedeln"/>
 <node CREATED="1515455215779" ID="ID_1744879837" MODIFIED="1515455225131" TEXT="protected....">
@@ -9308,7 +9356,7 @@
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1515884167067" ID="ID_252275651" MODIFIED="1518487921066" TEXT="Einzel-Zugang"/>
 <node CREATED="1515884183937" ID="ID_1146786067" MODIFIED="1518487921066" TEXT="explizit per Typ"/>
-<node CREATED="1515884193464" FOLDED="true" ID="ID_680693474" MODIFIED="1531584014137">
+<node CREATED="1515884193464" ID="ID_680693474" MODIFIED="1533608413664">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -9325,9 +9373,9 @@
 <node CREATED="1515884220428" ID="ID_513230162" MODIFIED="1518487921066" TEXT="Struktur-Regeln"/>
 <node CREATED="1515884235658" ID="ID_1028909961" MODIFIED="1518487921066" TEXT="finden oder zeugen"/>
 </node>
-<node CREATED="1515885720655" FOLDED="true" ID="ID_1092683882" MODIFIED="1531584014138" TEXT="b&#xfc;ndelt low-level-Zugang">
+<node CREATED="1515885720655" ID="ID_1092683882" MODIFIED="1533608413665" TEXT="b&#xfc;ndelt low-level-Zugang">
 <linktarget COLOR="#8c98a0" DESTINATION="ID_1092683882" ENDARROW="Default" ENDINCLINATION="-155;0;" ID="Arrow_ID_1761525173" SOURCE="ID_150080053" STARTARROW="None" STARTINCLINATION="-156;6;"/>
-<node CREATED="1515885728374" FOLDED="true" ID="ID_152777185" MODIFIED="1525124216342" TEXT="Bezug auf GlobalCtx">
+<node CREATED="1515885728374" FOLDED="true" ID="ID_152777185" MODIFIED="1533608416167" TEXT="Bezug auf GlobalCtx">
 <node CREATED="1515885839951" ID="ID_123309845" MODIFIED="1518487921066" TEXT="f&#xfc;r WindowLocator"/>
 <node CREATED="1515885847767" ID="ID_1781347382" MODIFIED="1518487921066" TEXT="f&#xfc;r PanelManager"/>
 <node CREATED="1515885855014" ID="ID_1634512088" MODIFIED="1518487921066" TEXT="f&#xfc;r LocationQuery">
@@ -9493,31 +9541,31 @@
 <node COLOR="#435e98" CREATED="1515980158112" ID="ID_1744041635" MODIFIED="1522939070606" TEXT="der Reihe nach pr&#xfc;fen">
 <icon BUILTIN="info"/>
 </node>
-<node COLOR="#338800" CREATED="1515979664353" FOLDED="true" ID="ID_1353761382" MODIFIED="1531584014138" TEXT="was hei&#xdf;t &quot;existing&quot;?">
+<node COLOR="#338800" CREATED="1515979664353" ID="ID_1353761382" MODIFIED="1533608413665" TEXT="was hei&#xdf;t &quot;existing&quot;?">
 <icon BUILTIN="help"/>
 <node CREATED="1515979750382" ID="ID_598253186" MODIFIED="1518487921067" TEXT="darf nicht neu erzeugt werden">
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1515979791512" ID="ID_1473589676" MODIFIED="1518487921067" TEXT="Gegensatz: View ggfs an bekannter Stelle erzeugen"/>
-<node CREATED="1515979803503" FOLDED="true" ID="ID_397957162" MODIFIED="1525124216342" TEXT="Schlu&#xdf;folgerung">
+<node CREATED="1515979803503" FOLDED="true" ID="ID_397957162" MODIFIED="1533608416169" TEXT="Schlu&#xdf;folgerung">
 <icon BUILTIN="forward"/>
 <node CREATED="1516909893778" ID="ID_659065678" MODIFIED="1518487921067" TEXT="&quot;existing&quot; &#x27fa;  total coverage"/>
 <node CREATED="1516909908686" ID="ID_1886532442" MODIFIED="1518487921067" TEXT="&quot;create&quot; &#x27fa;  can cover"/>
 </node>
 </node>
 <node CREATED="1515980170359" ID="ID_1820091983" MODIFIED="1518487921067" TEXT="L&#xf6;sung erfordert wenigstens partielle coverage"/>
-<node CREATED="1515982274106" FOLDED="true" ID="ID_1283888757" MODIFIED="1531584014139" TEXT="Problem: Match erm&#xf6;glichen">
+<node CREATED="1515982274106" ID="ID_1283888757" MODIFIED="1533608413666" TEXT="Problem: Match erm&#xf6;glichen">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1515982295663" ID="ID_208797931" MODIFIED="1518487921067" TEXT="der View-Name fehlt noch"/>
 <node CREATED="1515982302678" ID="ID_1579006450" MODIFIED="1518487921067" TEXT="nicht existierende Parents"/>
 <node CREATED="1515982330139" ID="ID_176314830" MODIFIED="1518487921067" TEXT="Perspective == egal"/>
 </node>
-<node COLOR="#990000" CREATED="1515982375397" FOLDED="true" ID="ID_773035469" MODIFIED="1531584014139" STYLE="fork" TEXT="Fallback &quot;wenn alles scheitert&quot;?">
+<node COLOR="#990000" CREATED="1515982375397" ID="ID_773035469" MODIFIED="1533608413667" STYLE="fork" TEXT="Fallback &quot;wenn alles scheitert&quot;?">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1516910666253" ID="ID_1056732886" MODIFIED="1518487921067" TEXT="Misconfig"/>
 <node CREATED="1516910669357" ID="ID_1129354200" MODIFIED="1518487921067" TEXT="fataler Fehler"/>
-<node CREATED="1516910673110" FOLDED="true" ID="ID_436584221" MODIFIED="1525124216342" TEXT="Regel mu&#xdf; Fallback enthalten">
+<node CREATED="1516910673110" FOLDED="true" ID="ID_436584221" MODIFIED="1533608416170" TEXT="Regel mu&#xdf; Fallback enthalten">
 <icon BUILTIN="yes"/>
 <node CREATED="1516910710727" ID="ID_1042011734" MODIFIED="1518487921067" TEXT="warum?"/>
 <node CREATED="1516910736388" ID="ID_1267411576" MODIFIED="1518487921067" TEXT="Principle of least surprise"/>
@@ -9538,27 +9586,27 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1516147992493" FOLDED="true" HGAP="24" ID="ID_4925227" MODIFIED="1531584014140" TEXT="wie wird das Zielobjekt selber bestimmt?" VSHIFT="-1">
+<node COLOR="#435e98" CREATED="1516147992493" HGAP="24" ID="ID_4925227" MODIFIED="1533608413668" TEXT="wie wird das Zielobjekt selber bestimmt?" VSHIFT="-1">
 <icon BUILTIN="help"/>
-<node CREATED="1516148029148" FOLDED="true" ID="ID_1974346974" MODIFIED="1525124216342" TEXT="M&#xf6;glichkeiten">
+<node CREATED="1516148029148" FOLDED="true" ID="ID_1974346974" MODIFIED="1533608416172" TEXT="M&#xf6;glichkeiten">
 <node CREATED="1516148034899" ID="ID_1675414085" MODIFIED="1518487921067" TEXT="explizit anschreiben"/>
 <node CREATED="1516148048121" ID="ID_1850664922" MODIFIED="1518487921067" TEXT="aus letzter gegebener Komponente ableiten"/>
 <node CREATED="1516909656846" ID="ID_1429663106" MODIFIED="1518487921067" TEXT="aus Typ ableiten und fehlende Parents erg&#xe4;nzen"/>
 </node>
-<node CREATED="1516148091716" FOLDED="true" ID="ID_1815243780" MODIFIED="1525124216342" TEXT="Anforderungen">
+<node CREATED="1516148091716" FOLDED="true" ID="ID_1815243780" MODIFIED="1533608416174" TEXT="Anforderungen">
 <icon BUILTIN="info"/>
 <node CREATED="1516148107065" ID="ID_389475040" MODIFIED="1518487921067" TEXT="Name-ID des Elements bestimmbar"/>
-<node CREATED="1516148118064" FOLDED="true" ID="ID_541058997" MODIFIED="1525124215539" TEXT="Coverage feststellbar">
-<node CREATED="1516148128790" FOLDED="true" ID="ID_739368723" MODIFIED="1525124215526" TEXT="partiell">
+<node CREATED="1516148118064" FOLDED="true" ID="ID_541058997" MODIFIED="1533608415867" TEXT="Coverage feststellbar">
+<node CREATED="1516148128790" FOLDED="true" ID="ID_739368723" MODIFIED="1533608415534" TEXT="partiell">
 <node CREATED="1516148133085" ID="ID_325513379" MODIFIED="1518487921067" TEXT="ein nicht-Wildcard darunter mu&#xdf; schon existieren"/>
 <node CREATED="1516148144267" ID="ID_1074912934" MODIFIED="1518487921067" TEXT="Problem: Perspektive"/>
 </node>
-<node CREATED="1516148152938" FOLDED="true" ID="ID_1439081992" MODIFIED="1525124215526" TEXT="total">
+<node CREATED="1516148152938" FOLDED="true" ID="ID_1439081992" MODIFIED="1533608415536" TEXT="total">
 <node CREATED="1516148156514" ID="ID_323573839" MODIFIED="1518487921067" TEXT="Komponente selber mu&#xdf; spezifiziert sein"/>
 <node CREATED="1516148172864" ID="ID_1611427093" MODIFIED="1518487921067" TEXT="erst dann kann man Match &#xfc;berhaupt pr&#xfc;fen"/>
 </node>
 </node>
-<node CREATED="1516148185461" FOLDED="true" ID="ID_1903672954" MODIFIED="1525124215539" TEXT="Konsequenz">
+<node CREATED="1516148185461" FOLDED="true" ID="ID_1903672954" MODIFIED="1533608415872" TEXT="Konsequenz">
 <icon BUILTIN="forward"/>
 <node CREATED="1516148190821" ID="ID_1390287231" MODIFIED="1518487921067" TEXT="Koordinaten-Erg&#xe4;nzung mu&#xdf; im Locator erfolgen"/>
 <node CREATED="1516909726125" ID="ID_1451248007" MODIFIED="1518487921067">
@@ -9589,14 +9637,14 @@
 <node CREATED="1516912422576" ID="ID_1350672682" MODIFIED="1518487921067" TEXT="create() tritt normalerweise auf der letzten Regel auf"/>
 <node CREATED="1516912433647" ID="ID_1102539904" MODIFIED="1518487921067" TEXT="das k&#xf6;nnte redundant sein, ist aber klarer so"/>
 <node CREATED="1516910880176" ID="ID_1842572487" MODIFIED="1518487921067" TEXT="create() kann scheitern"/>
-<node CREATED="1516910885938" FOLDED="true" ID="ID_348346243" MODIFIED="1525124215526" TEXT="abschlie&#xdf;ende create()-Regel">
+<node CREATED="1516910885938" FOLDED="true" ID="ID_348346243" MODIFIED="1533608415539" TEXT="abschlie&#xdf;ende create()-Regel">
 <node CREATED="1516910927252" ID="ID_219541480" MODIFIED="1518487921067" TEXT="sollte failsafe sein"/>
 <node CREATED="1516910928914" ID="ID_698619582" MODIFIED="1518487921067" TEXT="d.h. stets realisierbar"/>
 <node CREATED="1516910936185" ID="ID_1449340119" MODIFIED="1518487921067" TEXT="modulo Perspektive"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1516916455847" FOLDED="true" ID="ID_1054137561" MODIFIED="1525124216342" TEXT="Ergebnis">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1516916455847" FOLDED="true" ID="ID_1054137561" MODIFIED="1533608416176" TEXT="Ergebnis">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 <node CREATED="1516916468901" ID="ID_1527047531" MODIFIED="1518487921067">
@@ -9637,18 +9685,18 @@
 </node>
 </node>
 </node>
-<node COLOR="#48639d" CREATED="1516916096887" FOLDED="true" HGAP="32" ID="ID_319974456" MODIFIED="1531584014141" TEXT="zu kl&#xe4;ren...." VSHIFT="8">
+<node COLOR="#48639d" CREATED="1516916096887" HGAP="32" ID="ID_319974456" MODIFIED="1533608413676" TEXT="zu kl&#xe4;ren...." VSHIFT="8">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1516916105462" FOLDED="true" ID="ID_1576570507" MODIFIED="1525124216342" TEXT="ist die Semantik of canCover() ausreichend?">
+<node COLOR="#338800" CREATED="1516916105462" FOLDED="true" ID="ID_1576570507" MODIFIED="1533608416177" TEXT="ist die Semantik of canCover() ausreichend?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1517011522978" ID="ID_1745637631" MODIFIED="1518487921067" TEXT="im Prinzip ja">
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-<node COLOR="#338800" CREATED="1516916140785" FOLDED="true" ID="ID_1667593991" MODIFIED="1525124216342" TEXT="wie umschiffen wir konkret das Problem mit der Perspektive?">
+<node COLOR="#338800" CREATED="1516916140785" FOLDED="true" ID="ID_1667593991" MODIFIED="1533608416179" TEXT="wie umschiffen wir konkret das Problem mit der Perspektive?">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1517011709672" FOLDED="true" ID="ID_755188751" MODIFIED="1525124215539" TEXT="Problem ist...">
+<node CREATED="1517011709672" FOLDED="true" ID="ID_755188751" MODIFIED="1533608415875" TEXT="Problem ist...">
 <icon BUILTIN="info"/>
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@@ -9708,9 +9756,9 @@
 </html></richcontent>
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-<node CREATED="1517012023926" FOLDED="true" ID="ID_836827160" MODIFIED="1525124215539" TEXT="mehre M&#xf6;glichkeiten">
+<node CREATED="1517012023926" FOLDED="true" ID="ID_836827160" MODIFIED="1533608415878" TEXT="mehre M&#xf6;glichkeiten">
 <icon BUILTIN="idea"/>
-<node CREATED="1517012160083" FOLDED="true" ID="ID_485906589" MODIFIED="1525124215526" TEXT="currentPerspective()">
+<node CREATED="1517012160083" FOLDED="true" ID="ID_485906589" MODIFIED="1533608415544" TEXT="currentPerspective()">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1517012171313" ID="ID_736089446" MODIFIED="1518487921067" TEXT="weiteres Pr&#xe4;dikat"/>
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@@ -9718,7 +9766,7 @@
 <node CREATED="1517012202061" ID="ID_910880935" MODIFIED="1518487921067" TEXT="Name ist unbefriedigend"/>
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 </node>
-<node CREATED="1517012313269" FOLDED="true" ID="ID_1391847315" MODIFIED="1525124215526" TEXT="Wildcard-Erkennung manipulieren">
+<node CREATED="1517012313269" FOLDED="true" ID="ID_1391847315" MODIFIED="1533608415549" TEXT="Wildcard-Erkennung manipulieren">
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 <node CREATED="1517012337771" ID="ID_1231541108" MODIFIED="1518487921068" TEXT="...dann z&#xe4;hlt das nicht mehr als Wildcard"/>
@@ -9743,7 +9791,7 @@
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 </node>
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-<node CREATED="1517012475424" FOLDED="true" ID="ID_1174371180" MODIFIED="1525124215527" TEXT="element elided">
+<node CREATED="1517012475424" FOLDED="true" ID="ID_1174371180" MODIFIED="1533608415556" TEXT="element elided">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1517012497909" ID="ID_1850562402" MODIFIED="1518487921068" TEXT="neuer spezieller Wildcard"/>
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@@ -9880,13 +9928,13 @@
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-<node COLOR="#338800" CREATED="1516916210656" FOLDED="true" ID="ID_1339759450" MODIFIED="1529076223071" TEXT="wie ermitteln wir das zu erzeugende Suffix des Pfades?">
+<node COLOR="#338800" CREATED="1516916210656" FOLDED="true" ID="ID_1339759450" MODIFIED="1533608416181" TEXT="wie ermitteln wir das zu erzeugende Suffix des Pfades?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1517016683468" ID="ID_174913733" MODIFIED="1518487921068" TEXT="&quot;create()&quot;-Fall &#x27f9; partiallyCovered()">
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1517016762625" ID="ID_320463832" MODIFIED="1518487921068" TEXT="...m&#xfc;&#xdf;te diese Info an den Allocator weitergeben"/>
-<node CREATED="1517016781198" FOLDED="true" ID="ID_1556601725" MODIFIED="1525124215539" TEXT="Idee: Allocator nimmt UI-Coord-Resolver?">
+<node CREATED="1517016781198" FOLDED="true" ID="ID_1556601725" MODIFIED="1533608415881" TEXT="Idee: Allocator nimmt UI-Coord-Resolver?">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1517018164354" ID="ID_308763864" MODIFIED="1518487921068" TEXT="w&#xfc;rde theoretisch gehen...">
 <richcontent TYPE="NOTE"><html>
@@ -9983,7 +10031,7 @@
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 </node>
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-<node COLOR="#338800" CREATED="1518658487899" FOLDED="true" ID="ID_1831478029" MODIFIED="1525124216342" TEXT="wie k&#xf6;nnen Regeln auf den Anwendungs-Kontext Bezug nehmen?">
+<node COLOR="#338800" CREATED="1518658487899" FOLDED="true" ID="ID_1831478029" MODIFIED="1533608416184" TEXT="wie k&#xf6;nnen Regeln auf den Anwendungs-Kontext Bezug nehmen?">
 <linktarget COLOR="#967ea6" DESTINATION="ID_1831478029" ENDARROW="Default" ENDINCLINATION="-800;514;" ID="Arrow_ID_162294902" SOURCE="ID_986224819" STARTARROW="None" STARTINCLINATION="693;-50;"/>
 <icon BUILTIN="button_cancel"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518658506857" ID="ID_589229909" MODIFIED="1518658523711" TEXT="das Problem &quot;asset Tab&quot;">
@@ -9993,7 +10041,7 @@
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-<node CREATED="1518658902747" FOLDED="true" ID="ID_976555378" MODIFIED="1525124215540" TEXT="entspricht der Unifikation in Logik-Programmierung">
+<node CREATED="1518658902747" FOLDED="true" ID="ID_976555378" MODIFIED="1533608415883" TEXT="entspricht der Unifikation in Logik-Programmierung">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -10025,17 +10073,17 @@
 <arrowlink COLOR="#8e6e9e" DESTINATION="ID_1208480183" ENDARROW="Default" ENDINCLINATION="-458;-16;" ID="Arrow_ID_504124124" STARTARROW="None" STARTINCLINATION="-600;49;"/>
 </node>
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-<node COLOR="#48639d" CREATED="1516916599018" FOLDED="true" ID="ID_809925267" MODIFIED="1525124216343" TEXT="wie genau mu&#xdf; die Aufrufschnittstelle aussehen?">
+<node COLOR="#48639d" CREATED="1516916599018" FOLDED="true" ID="ID_809925267" MODIFIED="1533608416186" TEXT="wie genau mu&#xdf; die Aufrufschnittstelle aussehen?">
 <icon BUILTIN="help"/>
-<node CREATED="1517084001346" FOLDED="true" ID="ID_101484926" MODIFIED="1525124215540" TEXT="bekannter Ausgangspunkt">
-<node CREATED="1517083926212" FOLDED="true" ID="ID_1898315920" MODIFIED="1525124215527" TEXT="location">
+<node CREATED="1517084001346" FOLDED="true" ID="ID_101484926" MODIFIED="1533608415885" TEXT="bekannter Ausgangspunkt">
+<node CREATED="1517083926212" FOLDED="true" ID="ID_1898315920" MODIFIED="1533608415558" TEXT="location">
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 </node>
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-<node CREATED="1517084049228" FOLDED="true" ID="ID_919406389" MODIFIED="1525124215527" TEXT="allocation">
+<node CREATED="1517084049228" FOLDED="true" ID="ID_919406389" MODIFIED="1533608415560" TEXT="allocation">
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@@ -10067,8 +10115,8 @@
 </node>
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-<node CREATED="1517085201199" FOLDED="true" ID="ID_857446188" MODIFIED="1525124215540" TEXT="Problem: Name/Typ">
-<node CREATED="1517085219749" FOLDED="true" ID="ID_1532208378" MODIFIED="1525124215527" TEXT="mu&#xdf; das DSL-API ge&#xe4;ndert werden?">
+<node CREATED="1517085201199" FOLDED="true" ID="ID_857446188" MODIFIED="1533608415888" TEXT="Problem: Name/Typ">
+<node CREATED="1517085219749" FOLDED="true" ID="ID_1532208378" MODIFIED="1533608415564" TEXT="mu&#xdf; das DSL-API ge&#xe4;ndert werden?">
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@@ -10095,7 +10143,7 @@
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-<node COLOR="#338800" CREATED="1517505097399" FOLDED="true" ID="ID_294737534" MODIFIED="1525124215527" TEXT="Konsequenz: Locator wird zum Funktor">
+<node COLOR="#338800" CREATED="1517505097399" FOLDED="true" ID="ID_294737534" MODIFIED="1533608415568" TEXT="Konsequenz: Locator wird zum Funktor">
 <icon BUILTIN="button_ok"/>
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@@ -10109,9 +10157,9 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
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-<node CREATED="1517505406390" FOLDED="true" ID="ID_799191936" MODIFIED="1525124215540" TEXT="DSL-Anwendung">
+<node CREATED="1517505406390" FOLDED="true" ID="ID_799191936" MODIFIED="1533608415890" TEXT="DSL-Anwendung">
 <icon BUILTIN="info"/>
-<node CREATED="1517505438209" FOLDED="true" ID="ID_1991447613" MODIFIED="1525124215527" TEXT="Schritt 1">
+<node CREATED="1517505438209" FOLDED="true" ID="ID_1991447613" MODIFIED="1533608415571" TEXT="Schritt 1">
 <icon BUILTIN="full-1"/>
 <node CREATED="1517505518247" ID="ID_1212835768" MODIFIED="1518487921068" TEXT="locate(typID)"/>
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@@ -10119,7 +10167,7 @@
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 </node>
 </node>
-<node CREATED="1517505442593" FOLDED="true" ID="ID_164467382" MODIFIED="1525124215527" TEXT="Schritt 2">
+<node CREATED="1517505442593" FOLDED="true" ID="ID_164467382" MODIFIED="1533608415574" TEXT="Schritt 2">
 <icon BUILTIN="full-2"/>
 <node CREATED="1517505573687" ID="ID_197290428" MODIFIED="1518487921069" TEXT="allocate(pfad)"/>
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@@ -10131,9 +10179,9 @@
 </node>
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-<node COLOR="#48639d" CREATED="1516916611433" FOLDED="true" ID="ID_1887578617" MODIFIED="1531584013570" TEXT="welche zus&#xe4;tzlichen Services werden ben&#xf6;tigt?">
+<node COLOR="#48639d" CREATED="1516916611433" FOLDED="true" ID="ID_1887578617" MODIFIED="1533608416188" TEXT="welche zus&#xe4;tzlichen Services werden ben&#xf6;tigt?">
 <icon BUILTIN="help"/>
-<node CREATED="1517021372159" FOLDED="true" ID="ID_841350723" MODIFIED="1525124215540" TEXT="location">
+<node CREATED="1517021372159" FOLDED="true" ID="ID_841350723" MODIFIED="1533608415892" TEXT="location">
 <node CREATED="1518840121972" ID="ID_989066633" MODIFIED="1522938419001">
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   <head>
@@ -10173,7 +10221,7 @@
 </html></richcontent>
 </node>
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-<node CREATED="1517021389028" FOLDED="true" ID="ID_1240883488" MODIFIED="1525124215540" TEXT="Allocator">
+<node CREATED="1517021389028" FOLDED="true" ID="ID_1240883488" MODIFIED="1533608415894" TEXT="Allocator">
 <node CREATED="1517021395067" ID="ID_1609814715" MODIFIED="1518487921069" TEXT="die konkreten Allokatoren"/>
 <node CREATED="1517021415017" ID="ID_1692689619" MODIFIED="1522938396840">
 <richcontent TYPE="NODE"><html>
@@ -10193,7 +10241,7 @@
 </node>
 <node COLOR="#338800" CREATED="1517013926947" HGAP="247" ID="ID_1823688859" MODIFIED="1529076591824" TEXT="fehlende Implementierung..." VSHIFT="26">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1517013976676" FOLDED="true" ID="ID_614348470" MODIFIED="1531584014141" TEXT="&quot;elided&quot; als Wildcard behandeln">
+<node COLOR="#338800" CREATED="1517013976676" ID="ID_614348470" MODIFIED="1533608413693" TEXT="&quot;elided&quot; als Wildcard behandeln">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517013994137" ID="ID_140988955" MODIFIED="1518762169701" TEXT="einbauen (EInzeiler)">
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@@ -10204,7 +10252,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1518658696759" FOLDED="true" ID="ID_68856104" MODIFIED="1531584014142">
+<node COLOR="#990000" CREATED="1518658696759" ID="ID_68856104" MODIFIED="1533608413694">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -10220,14 +10268,14 @@
 </html></richcontent>
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 <icon BUILTIN="button_cancel"/>
-<node CREATED="1518658759567" FOLDED="true" ID="ID_1257805922" MODIFIED="1525124216343" TEXT="wie?">
+<node CREATED="1518658759567" FOLDED="true" ID="ID_1257805922" MODIFIED="1533608416189" TEXT="wie?">
 <node CREATED="1517014036148" ID="ID_1650726696" MODIFIED="1518487921069" TEXT="on the fly">
 <icon BUILTIN="idea"/>
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-<node CREATED="1518658744024" FOLDED="true" ID="ID_1009975119" MODIFIED="1525124216343" TEXT="Zweck">
-<node COLOR="#338800" CREATED="1517014013207" FOLDED="true" ID="ID_1843964714" MODIFIED="1525124215540" TEXT="automatisches Injizieren von &quot;elided&quot;">
+<node CREATED="1518658744024" FOLDED="true" ID="ID_1009975119" MODIFIED="1533608416191" TEXT="Zweck">
+<node COLOR="#338800" CREATED="1517014013207" FOLDED="true" ID="ID_1843964714" MODIFIED="1533608415896" TEXT="automatisches Injizieren von &quot;elided&quot;">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518743292259" ID="ID_1943028471" MODIFIED="1518839525198" TEXT="das machen wir trotzdem">
 <arrowlink COLOR="#595f8d" DESTINATION="ID_1516856737" ENDARROW="Default" ENDINCLINATION="302;0;" ID="Arrow_ID_241747952" STARTARROW="None" STARTINCLINATION="697;-153;"/>
@@ -10235,7 +10283,7 @@
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-<node CREATED="1518658412982" FOLDED="true" ID="ID_1860407174" MODIFIED="1525124215540" TEXT="L&#xf6;sung f&#xfc;r &quot;asset Tab&quot;">
+<node CREATED="1518658412982" FOLDED="true" ID="ID_1860407174" MODIFIED="1533608415900" TEXT="L&#xf6;sung f&#xfc;r &quot;asset Tab&quot;">
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 <richcontent TYPE="NOTE"><html>
@@ -10299,7 +10347,7 @@
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518746009058" FOLDED="true" ID="ID_43313184" MODIFIED="1525124215527" TEXT="#1130 allow view location by similar kind">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518746009058" FOLDED="true" ID="ID_43313184" MODIFIED="1533608415575" TEXT="#1130 allow view location by similar kind">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1518762071967" FOLDED="true" ID="ID_1501187790" MODIFIED="1525124215515" TEXT="ggfs partielle L&#xf6;sung?">
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@@ -10339,11 +10387,11 @@
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-<node CREATED="1518660243382" FOLDED="true" HGAP="32" ID="ID_1951597669" MODIFIED="1525124216343" TEXT="technischer Ansatz" VSHIFT="-2">
-<node CREATED="1518660484501" FOLDED="true" ID="ID_1142230788" MODIFIED="1525124215540" TEXT="Pattern umschreiben">
+<node CREATED="1518660243382" FOLDED="true" HGAP="32" ID="ID_1951597669" MODIFIED="1533608416192" TEXT="technischer Ansatz" VSHIFT="-2">
+<node CREATED="1518660484501" FOLDED="true" ID="ID_1142230788" MODIFIED="1533608415902" TEXT="Pattern umschreiben">
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-<node CREATED="1518660696792" FOLDED="true" ID="ID_90938050" MODIFIED="1525124215527" TEXT="verschwenderisch">
+<node CREATED="1518660696792" FOLDED="true" ID="ID_90938050" MODIFIED="1533608415577" TEXT="verschwenderisch">
 <node CREATED="1518660724012" ID="ID_471630453" MODIFIED="1518660730367" TEXT="zus&#xe4;tzlicher Pass"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518660732051" ID="ID_595304644" MODIFIED="1518738065908" TEXT="f&#xfc;r ein selten verwendetes Feature">
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@@ -10351,10 +10399,10 @@
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-<node CREATED="1518660504026" FOLDED="true" ID="ID_923980639" MODIFIED="1525124215540" TEXT="Matcher/Unifizierer">
+<node CREATED="1518660504026" FOLDED="true" ID="ID_923980639" MODIFIED="1533608415906" TEXT="Matcher/Unifizierer">
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-<node CREATED="1518660795403" FOLDED="true" ID="ID_1080152835" MODIFIED="1525124215528" TEXT="erfordert Abstraktion">
+<node CREATED="1518660795403" FOLDED="true" ID="ID_1080152835" MODIFIED="1533608415580" TEXT="erfordert Abstraktion">
 <node CREATED="1518660845588" ID="ID_1526822574" MODIFIED="1518660850327" TEXT="Definitionsaufwand"/>
 <node CREATED="1518660851035" ID="ID_1271437627" MODIFIED="1518660856798" TEXT="Einrichtungs-Aufwand"/>
 <node CREATED="1518660857434" ID="ID_1501111250" MODIFIED="1518660906191" TEXT="komplex f&#xfc;r Test einzurichten"/>
@@ -10375,12 +10423,12 @@
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 </node>
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-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1518743065930" FOLDED="true" HGAP="79" ID="ID_1989234578" MODIFIED="1525124216343" TEXT="vorerst abgelehnt" VSHIFT="21">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1518743065930" FOLDED="true" HGAP="79" ID="ID_1989234578" MODIFIED="1533608416194" TEXT="vorerst abgelehnt" VSHIFT="21">
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1518743153214" ID="ID_513041431" MODIFIED="1518743159705" TEXT="keine der L&#xf6;sungen wirklich attraktiv"/>
 <node CREATED="1518743167708" ID="ID_1748977650" MODIFIED="1518743186813" TEXT="sprengt gewisserma&#xdf;en den Ansatz eines reinen Matchers"/>
 <node CREATED="1518743192305" ID="ID_1134364758" MODIFIED="1518743222705" TEXT="wenn man wirkliche Unifikation will  &#x27f9;  Resolution-Engine nehmen"/>
-<node CREATED="1518743226772" FOLDED="true" ID="ID_1108128377" MODIFIED="1525124215541" TEXT="DSL-Entwurf nochmal angeschaut....">
+<node CREATED="1518743226772" FOLDED="true" ID="ID_1108128377" MODIFIED="1533608415908" TEXT="DSL-Entwurf nochmal angeschaut....">
 <node CREATED="1518743248497" ID="ID_1219364679" MODIFIED="1518745996865" TEXT="Feature kann weitgehend umgangen werden">
 <arrowlink COLOR="#2c4580" DESTINATION="ID_334346990" ENDARROW="Default" ENDINCLINATION="242;0;" ID="Arrow_ID_1968525556" STARTARROW="None" STARTINCLINATION="78;0;"/>
 </node>
@@ -10390,13 +10438,13 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517505328936" FOLDED="true" ID="ID_406973235" MODIFIED="1531584014143" TEXT="Umbauen Locator in Functor">
+<node COLOR="#338800" CREATED="1517505328936" ID="ID_406973235" MODIFIED="1533608413702" TEXT="Umbauen Locator in Functor">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1517505339663" FOLDED="true" ID="ID_470503309" MODIFIED="1525124216343" TEXT="DSL-Header restrukturieren">
+<node COLOR="#338800" CREATED="1517505339663" FOLDED="true" ID="ID_470503309" MODIFIED="1533608416197" TEXT="DSL-Header restrukturieren">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1517507830918" FOLDED="true" ID="ID_1112334086" MODIFIED="1525124215541" TEXT="Locator analog zu Allocator definieren">
+<node COLOR="#338800" CREATED="1517507830918" FOLDED="true" ID="ID_1112334086" MODIFIED="1533608415912" TEXT="Locator analog zu Allocator definieren">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1519355684307" FOLDED="true" ID="ID_336676610" MODIFIED="1525124215528">
+<node CREATED="1519355684307" FOLDED="true" ID="ID_336676610" MODIFIED="1533608415582">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -10412,7 +10460,7 @@
 </node>
 <node CREATED="1519355709376" ID="ID_142286917" MODIFIED="1519355717530" TEXT="mit Aufruf-Mechanismus"/>
 </node>
-<node CREATED="1519357904845" FOLDED="true" ID="ID_691482201" MODIFIED="1525124215528" TEXT="Verwendungs-Schema">
+<node CREATED="1519357904845" FOLDED="true" ID="ID_691482201" MODIFIED="1533608415585" TEXT="Verwendungs-Schema">
 <icon BUILTIN="yes"/>
 <node CREATED="1519357910532" FOLDED="true" ID="ID_1670200821" MODIFIED="1525124215515" TEXT="komplett symmetrisch?">
 <icon BUILTIN="button_cancel"/>
@@ -10429,7 +10477,7 @@
 <node CREATED="1519358000671" ID="ID_49826255" MODIFIED="1519358015345" TEXT="Aufruf mit Typ-ID-Argument"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1519358138988" FOLDED="true" ID="ID_1481930885" MODIFIED="1525124215528" TEXT="DSL-Mechanik">
+<node COLOR="#338800" CREATED="1519358138988" FOLDED="true" ID="ID_1481930885" MODIFIED="1533608415590" TEXT="DSL-Mechanik">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1519358154386" ID="ID_1810798001" MODIFIED="1519358201550" TEXT="Allocator wird durch Zuweisen der AlocSpec generiert">
 <icon BUILTIN="idea"/>
@@ -10614,7 +10662,7 @@
 <arrowlink COLOR="#647b96" DESTINATION="ID_1664602603" ENDARROW="Default" ENDINCLINATION="1374;300;" ID="Arrow_ID_947721778" STARTARROW="None" STARTINCLINATION="298;36;"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517507566761" FOLDED="true" ID="ID_839496495" MODIFIED="1525124215541">
+<node COLOR="#338800" CREATED="1517507566761" FOLDED="true" ID="ID_839496495" MODIFIED="1533608415913">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -10653,9 +10701,9 @@
 <arrowlink COLOR="#2c5db0" DESTINATION="ID_578310400" ENDARROW="Default" ENDINCLINATION="52;3;" ID="Arrow_ID_808786860" STARTARROW="None" STARTINCLINATION="52;3;"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1519355422807" FOLDED="true" ID="ID_1718427051" MODIFIED="1525124215541" TEXT="Service-Zugang regeln">
+<node COLOR="#338800" CREATED="1519355422807" FOLDED="true" ID="ID_1718427051" MODIFIED="1533608415916" TEXT="Service-Zugang regeln">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1520221913300" FOLDED="true" ID="ID_906905" MODIFIED="1525124215528" TEXT="Design?">
+<node CREATED="1520221913300" FOLDED="true" ID="ID_906905" MODIFIED="1533608415593" TEXT="Design?">
 <icon BUILTIN="help"/>
 <node CREATED="1520221927138" FOLDED="true" ID="ID_782466951" MODIFIED="1525124215516" TEXT="hintenrum injizieren">
 <arrowlink COLOR="#3391c4" DESTINATION="ID_1058958215" ENDARROW="Default" ENDINCLINATION="356;0;" ID="Arrow_ID_1958186293" STARTARROW="None" STARTINCLINATION="40;166;"/>
@@ -10682,7 +10730,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522804403692" FOLDED="true" ID="ID_281326685" MODIFIED="1525124215528" TEXT="globale Variable zur&#xfc;ckbauen">
+<node COLOR="#338800" CREATED="1522804403692" FOLDED="true" ID="ID_281326685" MODIFIED="1533608415595" TEXT="globale Variable zur&#xfc;ckbauen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522804419777" ID="ID_631271577" MODIFIED="1522806858336" TEXT="locationQuery">
 <icon BUILTIN="button_ok"/>
@@ -10691,7 +10739,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1520721753927" FOLDED="true" ID="ID_1564232821" MODIFIED="1525124215528" TEXT="DependencyFactory verwenden">
+<node COLOR="#338800" CREATED="1520721753927" FOLDED="true" ID="ID_1564232821" MODIFIED="1533608415599" TEXT="DependencyFactory verwenden">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1520721767005" ID="ID_364557801" MODIFIED="1522806969961" TEXT="dazu mu&#xdf; diese erst mal ausgebaut werden">
 <icon BUILTIN="messagebox_warning"/>
@@ -10711,7 +10759,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517507576168" FOLDED="true" ID="ID_700127725" MODIFIED="1525124215541" TEXT="LocationClause">
+<node COLOR="#338800" CREATED="1517507576168" FOLDED="true" ID="ID_700127725" MODIFIED="1533608415918" TEXT="LocationClause">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517507586447" ID="ID_170204980" MODIFIED="1518487921069" TEXT="eingebettete UI-Coord">
 <icon BUILTIN="button_ok"/>
@@ -10734,7 +10782,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517505346701" FOLDED="true" ID="ID_1733459677" MODIFIED="1525124216343" TEXT="LocationSolver einf&#xfc;hren">
+<node COLOR="#338800" CREATED="1517505346701" FOLDED="true" ID="ID_1733459677" MODIFIED="1533608416201" TEXT="LocationSolver einf&#xfc;hren">
 <linktarget COLOR="#7999a3" DESTINATION="ID_1733459677" ENDARROW="Default" ENDINCLINATION="460;0;" ID="Arrow_ID_1447990036" SOURCE="ID_570287604" STARTARROW="None" STARTINCLINATION="-15;211;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1517505662323" ID="ID_1295083929" MODIFIED="1518487921069" TEXT="baut auf LocationQuery auf">
@@ -10743,12 +10791,12 @@
 <node COLOR="#338800" CREATED="1517505700422" ID="ID_387055301" MODIFIED="1518487921069" TEXT="erweiterte solve()-Methode">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1517505717508" FOLDED="true" ID="ID_636863312" MODIFIED="1525124215541" TEXT="Framework f&#xfc;r mehrere Klauseln">
+<node COLOR="#338800" CREATED="1517505717508" FOLDED="true" ID="ID_636863312" MODIFIED="1533608415920" TEXT="Framework f&#xfc;r mehrere Klauseln">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517506971514" ID="ID_1227765715" MODIFIED="1518487921069" TEXT="Iterator(LocationClause const&amp;)">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1517508131749" FOLDED="true" ID="ID_1527522188" MODIFIED="1525124215528" TEXT="LocationRule">
+<node COLOR="#338800" CREATED="1517508131749" FOLDED="true" ID="ID_1527522188" MODIFIED="1533608415602" TEXT="LocationRule">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517508155177" ID="ID_1404330274" MODIFIED="1518487921069" TEXT="vector(LocationClause (values))">
 <icon BUILTIN="button_ok"/>
@@ -10761,7 +10809,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517505737977" FOLDED="true" ID="ID_606655578" MODIFIED="1525124215541" TEXT="L&#xf6;sungsmechanismus">
+<node COLOR="#338800" CREATED="1517505737977" FOLDED="true" ID="ID_606655578" MODIFIED="1533608415928" TEXT="L&#xf6;sungsmechanismus">
 <arrowlink COLOR="#8b9e9d" DESTINATION="ID_1945600026" ENDARROW="None" ENDINCLINATION="341;-39;" ID="Arrow_ID_360373706" STARTARROW="Default" STARTINCLINATION="-302;83;"/>
 <linktarget COLOR="#8b9e9d" DESTINATION="ID_606655578" ENDARROW="Default" ENDINCLINATION="-152;43;" ID="Arrow_ID_1433975114" SOURCE="ID_783849930" STARTARROW="None" STARTINCLINATION="213;-13;"/>
 <icon BUILTIN="button_ok"/>
@@ -10771,7 +10819,7 @@
 <node COLOR="#338800" CREATED="1517506994783" ID="ID_1943710017" MODIFIED="1518487921069" TEXT="baut jeweils UICorrdResolver">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518658805744" FOLDED="true" ID="ID_1208480183" MODIFIED="1525124215529" TEXT="Kontext-Bindung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1518658805744" FOLDED="true" ID="ID_1208480183" MODIFIED="1533608415606" TEXT="Kontext-Bindung">
 <arrowlink COLOR="#e46465" DESTINATION="ID_68856104" ENDARROW="Default" ENDINCLINATION="74;449;" ID="Arrow_ID_110301671" STARTARROW="None" STARTINCLINATION="-232;7;"/>
 <linktarget COLOR="#8e6e9e" DESTINATION="ID_1208480183" ENDARROW="Default" ENDINCLINATION="-458;-16;" ID="Arrow_ID_504124124" SOURCE="ID_839916178" STARTARROW="None" STARTINCLINATION="-600;49;"/>
 <linktarget COLOR="#b78791" DESTINATION="ID_1208480183" ENDARROW="Default" ENDINCLINATION="-1240;134;" ID="Arrow_ID_831550289" SOURCE="ID_481219776" STARTARROW="None" STARTINCLINATION="1654;0;"/>
@@ -10808,7 +10856,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1518762499749" FOLDED="true" ID="ID_214794727" MODIFIED="1525124215529">
+<node COLOR="#338800" CREATED="1518762499749" FOLDED="true" ID="ID_214794727" MODIFIED="1533608415610">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -10875,7 +10923,7 @@
 <arrowlink COLOR="#50546a" DESTINATION="ID_1272905286" ENDARROW="Default" ENDINCLINATION="394;1164;" ID="Arrow_ID_396720500" STARTARROW="None" STARTINCLINATION="1558;-33;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1518055049276" FOLDED="true" ID="ID_1963190796" MODIFIED="1525124215529" TEXT="Fallunterscheidung">
+<node COLOR="#338800" CREATED="1518055049276" FOLDED="true" ID="ID_1963190796" MODIFIED="1533608415615" TEXT="Fallunterscheidung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518055059890" FOLDED="true" ID="ID_1240967474" MODIFIED="1525124215516" TEXT="Standard: totale Coverage!">
 <icon BUILTIN="button_ok"/>
@@ -10965,7 +11013,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1518145595274" FOLDED="true" ID="ID_1539200142" MODIFIED="1525124215529" TEXT="in jedem Fall korrekte L&#xe4;nge sicherstellen">
+<node COLOR="#338800" CREATED="1518145595274" FOLDED="true" ID="ID_1539200142" MODIFIED="1533608415618" TEXT="in jedem Fall korrekte L&#xe4;nge sicherstellen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1518212471553" FOLDED="true" ID="ID_1821401889" MODIFIED="1525124215517" TEXT="Frage: wann?">
 <node CREATED="1518212565636" ID="ID_1223770753" MODIFIED="1518487921070" TEXT="L&#xf6;sen einer zu kurzen Klausel bringt nix">
@@ -11017,7 +11065,7 @@
 <node CREATED="1518212959895" ID="ID_930933486" MODIFIED="1518487921070" TEXT="len &lt;= depth+1"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1518145778249" FOLDED="true" ID="ID_462394658" MODIFIED="1525124215529" TEXT="F&#xe4;lle geschickt zusammenfassen (duplikate Aktionen)">
+<node COLOR="#338800" CREATED="1518145778249" FOLDED="true" ID="ID_462394658" MODIFIED="1533608415620" TEXT="F&#xe4;lle geschickt zusammenfassen (duplikate Aktionen)">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#efedc4" CREATED="1518213086862" FOLDED="true" ID="ID_1713281564" MODIFIED="1525124215517" STYLE="bubble">
 <richcontent TYPE="NODE"><html>
@@ -11056,13 +11104,13 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517505737977" FOLDED="true" ID="ID_1981924615" MODIFIED="1525124215542" TEXT="Unit-Test">
+<node COLOR="#338800" CREATED="1517505737977" FOLDED="true" ID="ID_1981924615" MODIFIED="1533608415930" TEXT="Unit-Test">
 <arrowlink COLOR="#465888" DESTINATION="ID_957265584" ENDARROW="Default" ENDINCLINATION="351;-62;" ID="Arrow_ID_1922023705" STARTARROW="None" STARTINCLINATION="-226;69;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518312788963" ID="ID_1715641481" MODIFIED="1518487921070" TEXT="brauche Setup">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1518312794346" FOLDED="true" ID="ID_98359518" MODIFIED="1525124215529" TEXT="Schreibweise f&#xfc;r create-Klauseln im Test">
+<node COLOR="#338800" CREATED="1518312794346" FOLDED="true" ID="ID_98359518" MODIFIED="1533608415622" TEXT="Schreibweise f&#xfc;r create-Klauseln im Test">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1518317872064" ID="ID_230463403" MODIFIED="1518487921070" TEXT="verwende normale Koordinaten-Notation">
 <icon BUILTIN="idea"/>
@@ -11071,14 +11119,14 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1519347191513" FOLDED="true" ID="ID_1058958215" MODIFIED="1525124216343" TEXT="Zugang zum LocationSolver">
+<node COLOR="#338800" CREATED="1519347191513" FOLDED="true" ID="ID_1058958215" MODIFIED="1533608416202" TEXT="Zugang zum LocationSolver">
 <arrowlink COLOR="#33a0d6" DESTINATION="ID_1459009906" ENDARROW="Default" ENDINCLINATION="766;0;" ID="Arrow_ID_393354619" STARTARROW="None" STARTINCLINATION="-338;0;"/>
 <linktarget COLOR="#3391c4" DESTINATION="ID_1058958215" ENDARROW="Default" ENDINCLINATION="356;0;" ID="Arrow_ID_1958186293" SOURCE="ID_782466951" STARTARROW="None" STARTINCLINATION="40;166;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1519347295051" ID="ID_846050459" MODIFIED="1522808896717" TEXT="im realen UI">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1519347289508" FOLDED="true" ID="ID_723600288" MODIFIED="1525124215542" TEXT="setup f&#xfc;r Unit-Test">
+<node COLOR="#338800" CREATED="1519347289508" FOLDED="true" ID="ID_723600288" MODIFIED="1533608415931" TEXT="setup f&#xfc;r Unit-Test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522883291235" ID="ID_543936991" MODIFIED="1522883304073" TEXT="GenNodeLocationQuery">
 <icon BUILTIN="button_ok"/>
@@ -11088,7 +11136,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1519347266311" FOLDED="true" ID="ID_1347610352" MODIFIED="1525124216344" TEXT="Funktor-Anwendung implementieren">
+<node COLOR="#338800" CREATED="1519347266311" FOLDED="true" ID="ID_1347610352" MODIFIED="1533608416203" TEXT="Funktor-Anwendung implementieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522808910387" ID="ID_900668862" MODIFIED="1522808936078" TEXT="war Watschn-einfach">
 <icon BUILTIN="ksmiletris"/>
@@ -11127,15 +11175,15 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1515631663265" ID="ID_1149231463" MODIFIED="1518487921070" TEXT="ODER-Operator">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1517970584075" FOLDED="true" ID="ID_1155445128" MODIFIED="1531584014143" TEXT="Syntax / DSL-Technik">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1517970584075" ID="ID_1155445128" MODIFIED="1533608413740" TEXT="Syntax / DSL-Technik">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1517970606791" FOLDED="true" ID="ID_1375091296" MODIFIED="1525124216344" TEXT="Operatoren haben feste Pr&#xe4;zedenz">
+<node CREATED="1517970606791" FOLDED="true" ID="ID_1375091296" MODIFIED="1533608416204" TEXT="Operatoren haben feste Pr&#xe4;zedenz">
 <node CREATED="1517970623613" ID="ID_271068747" MODIFIED="1518487921070" TEXT="OR bindet st&#xe4;rker als Zuweisung"/>
 <node CREATED="1517970650217" ID="ID_1384466296" MODIFIED="1518487921070" TEXT="LocationSpec = ( UICoord::Builder || UICoord)"/>
 </node>
-<node CREATED="1517970828105" FOLDED="true" ID="ID_803913203" MODIFIED="1525124216344" TEXT="m&#xf6;gliche Alternativen">
+<node CREATED="1517970828105" FOLDED="true" ID="ID_803913203" MODIFIED="1533608416206" TEXT="m&#xf6;gliche Alternativen">
 <icon BUILTIN="info"/>
-<node CREATED="1517970849142" FOLDED="true" ID="ID_1434826323" MODIFIED="1525124215542" TEXT="Komma-Operator verwenden">
+<node CREATED="1517970849142" FOLDED="true" ID="ID_1434826323" MODIFIED="1533608415935" TEXT="Komma-Operator verwenden">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1517970857389" ID="ID_815195379" MODIFIED="1518487921070" TEXT="bindet schw&#xe4;cher als Zuweisung"/>
 <node CREATED="1517970865180" ID="ID_349717845" MODIFIED="1518487921070" TEXT="wird folglich auf LocationSpec definiert"/>
@@ -11155,27 +11203,27 @@
 <icon BUILTIN="smily_bad"/>
 </node>
 </node>
-<node CREATED="1517970882714" FOLDED="true" ID="ID_1615423213" MODIFIED="1525124215542" TEXT="Builder mu&#xdf; bereits mit OR umgehen k&#xf6;nnen">
+<node CREATED="1517970882714" FOLDED="true" ID="ID_1615423213" MODIFIED="1533608415937" TEXT="Builder mu&#xdf; bereits mit OR umgehen k&#xf6;nnen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1517971040980" ID="ID_1600012363" MODIFIED="1518487921070" TEXT="vermischt die Themen">
 <icon BUILTIN="smily_bad"/>
 </node>
 <node CREATED="1517971023823" ID="ID_1961997914" MODIFIED="1518487921070" TEXT="verkehrt die Definitions-Reihenfolge"/>
 </node>
-<node CREATED="1517970999466" FOLDED="true" ID="ID_1299498209" MODIFIED="1525124215542" TEXT="freier OR-Operator im DSL-Kontext definiert">
+<node CREATED="1517970999466" FOLDED="true" ID="ID_1299498209" MODIFIED="1533608415938" TEXT="freier OR-Operator im DSL-Kontext definiert">
 <linktarget COLOR="#55618e" DESTINATION="ID_1299498209" ENDARROW="Default" ENDINCLINATION="115;1000;" ID="Arrow_ID_1706569145" SOURCE="ID_1413272427" STARTARROW="None" STARTINCLINATION="561;-39;"/>
 <node CREATED="1517971299201" ID="ID_1350388784" MODIFIED="1518487921070" TEXT="Builder || UICoord  -&gt; LocationRule(LocationClause) . add(LocationClause)"/>
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1519355632354" FOLDED="true" ID="ID_1664602603" MODIFIED="1531584014144" TEXT="wo entsteht die LocationRule?">
+<node COLOR="#435e98" CREATED="1519355632354" ID="ID_1664602603" MODIFIED="1533608413744" TEXT="wo entsteht die LocationRule?">
 <linktarget COLOR="#647b96" DESTINATION="ID_1664602603" ENDARROW="Default" ENDINCLINATION="1374;300;" ID="Arrow_ID_947721778" SOURCE="ID_241646491" STARTARROW="None" STARTINCLINATION="298;36;"/>
 <icon BUILTIN="help"/>
-<node CREATED="1519355656423" FOLDED="true" ID="ID_1547517953" MODIFIED="1525124216344" TEXT="in der LocationSpec">
+<node CREATED="1519355656423" FOLDED="true" ID="ID_1547517953" MODIFIED="1533608416207" TEXT="in der LocationSpec">
 <node CREATED="1520207968932" ID="ID_1172076522" MODIFIED="1520207982341" TEXT="wenn eine einfache Ortsangabe gegeben ist"/>
 <node CREATED="1520208008190" ID="ID_874779146" MODIFIED="1520208019664" TEXT="dann wird aus dem Builder inline eine LocationClause gemacht"/>
 </node>
-<node CREATED="1519355666797" FOLDED="true" ID="ID_1270620528" MODIFIED="1525124216344" TEXT="vor der LocationSpec">
+<node CREATED="1519355666797" FOLDED="true" ID="ID_1270620528" MODIFIED="1533608416208" TEXT="vor der LocationSpec">
 <node CREATED="1520207985113" ID="ID_372230629" MODIFIED="1520208000019" TEXT="wenn mehrere Angaben per OR verbunden werden"/>
 <node CREATED="1520208026027" ID="ID_409650611" MODIFIED="1520208035510" TEXT="dann passiert die Umwandlung bereits im operator OR"/>
 </node>
@@ -11239,7 +11287,7 @@
 </node>
 <node CREATED="1523117332841" ID="ID_58827305" MODIFIED="1523117335261" TEXT="effektiv">
 <node CREATED="1523117336257" ID="ID_1661836054" MODIFIED="1523117354618" TEXT="zwei Traversierungen der realen UI-Struktur"/>
-<node CREATED="1523117355966" FOLDED="true" ID="ID_901586822" MODIFIED="1531584014144" TEXT="die sich unterscheiden">
+<node CREATED="1523117355966" ID="ID_901586822" MODIFIED="1533608413745" TEXT="die sich unterscheiden">
 <node CREATED="1523117363405" ID="ID_415134573" MODIFIED="1523117377647" TEXT="die erste ist eine depth-first Suche (aufwendig)"/>
 <node CREATED="1523117378307" ID="ID_228369164" MODIFIED="1523117399516" TEXT="die zweite steigt zum L&#xf6;sungspunkt der ersten nochmal ab"/>
 <node CREATED="1523117436451" ID="ID_1526973711" MODIFIED="1523117445502" TEXT="und baut dort i.d.R weitere Elemente an"/>
@@ -11247,13 +11295,13 @@
 </node>
 <node CREATED="1523117416901" ID="ID_666361594" MODIFIED="1523117419705" TEXT="Optimierung">
 <node CREATED="1523117421189" ID="ID_1083685803" MODIFIED="1523117433679" TEXT="den vollen Kontext von der L&#xf6;sung zur zweiten Traversierung durchreichen"/>
-<node CREATED="1523117477813" FOLDED="true" ID="ID_5382937" MODIFIED="1531584014145" TEXT="Problem... nicht alles sind L&#xf6;sungen">
+<node CREATED="1523117477813" ID="ID_5382937" MODIFIED="1533608413745" TEXT="Problem... nicht alles sind L&#xf6;sungen">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1523117488172" ID="ID_1947043295" MODIFIED="1523117492743" TEXT="es gibt zwei F&#xe4;lle"/>
 <node CREATED="1523117493427" ID="ID_391352800" MODIFIED="1523117501086" TEXT="nur in einem Fall wird eine L&#xf6;sung konstruiert"/>
 <node CREATED="1523117501722" ID="ID_1104653648" MODIFIED="1523117510604" TEXT="im anderen Fall wird der Pfad direkt interpretiert"/>
 </node>
-<node CREATED="1523117563481" FOLDED="true" ID="ID_1561615666" MODIFIED="1531584014145" TEXT="Einspar-Potential">
+<node CREATED="1523117563481" ID="ID_1561615666" MODIFIED="1533608413746" TEXT="Einspar-Potential">
 <node CREATED="1523117578175" ID="ID_17072072" MODIFIED="1523117605679" TEXT="erneuter Einstieg"/>
 <node CREATED="1523117606179" ID="ID_1306679723" MODIFIED="1523117618878" TEXT="i.d.R. Window - Panel - View"/>
 <node CREATED="1523117625392" ID="ID_1699581450" MODIFIED="1523117630964" TEXT="vermutlich gering gegen&#xfc;ber Suche"/>
@@ -11285,7 +11333,7 @@
 <node CREATED="1519354365423" ID="ID_1473090391" MODIFIED="1519354379881" TEXT="jede Aloc-Speck entspricht einem Service"/>
 <node COLOR="#435e98" CREATED="1519354380677" ID="ID_1029266700" MODIFIED="1529076963809" TEXT="wer bietet diesen Service?">
 <icon BUILTIN="help"/>
-<node CREATED="1519355147108" FOLDED="true" ID="ID_1615393259" MODIFIED="1531584014146" TEXT="in Frage kommen">
+<node CREATED="1519355147108" ID="ID_1615393259" MODIFIED="1533608413746" TEXT="in Frage kommen">
 <icon BUILTIN="info"/>
 <node CREATED="1519355157603" ID="ID_1219922150" MODIFIED="1519355160662" TEXT="ViewLocator"/>
 <node CREATED="1519355161347" ID="ID_560748249" MODIFIED="1519355167270" TEXT="Navigator"/>
@@ -11313,7 +11361,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1529076931278" FOLDED="true" ID="ID_1289639668" MODIFIED="1531584014146" TEXT="ElemAccessDir">
+<node CREATED="1529076931278" ID="ID_1289639668" MODIFIED="1533608413746" TEXT="ElemAccessDir">
 <icon BUILTIN="forward"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1529076946755" ID="ID_104892802" MODIFIED="1529076957961" TEXT="derzeit noch nicht implementierbar">
 <icon BUILTIN="hourglass"/>
@@ -11322,15 +11370,15 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354420343" ID="ID_17801598" MODIFIED="1519354425479" TEXT="Varianten">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354443485" FOLDED="true" ID="ID_1474832227" MODIFIED="1531584014146" TEXT="always create">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354443485" ID="ID_1474832227" MODIFIED="1533608413747" TEXT="always create">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354760313" FOLDED="true" ID="ID_321705251" MODIFIED="1531584013575" TEXT="Umgang mit Duplikaten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354760313" FOLDED="true" ID="ID_321705251" MODIFIED="1533608416209" TEXT="Umgang mit Duplikaten">
 <linktarget COLOR="#807e9b" DESTINATION="ID_321705251" ENDARROW="Default" ENDINCLINATION="127;-96;" ID="Arrow_ID_1030149985" SOURCE="ID_1792932496" STARTARROW="None" STARTINCLINATION="390;-188;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1519354813458" ID="ID_168710453" MODIFIED="1519354818789" TEXT="beiseite schieben"/>
 <node CREATED="1519354819473" ID="ID_996615547" MODIFIED="1519354824572" TEXT="Tab innerhalb erzeugen"/>
 </node>
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1519354769960" FOLDED="true" ID="ID_778018274" MODIFIED="1531584013575" TEXT="Festlegung: was sind die Namen?">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1519354769960" FOLDED="true" ID="ID_778018274" MODIFIED="1533608416212" TEXT="Festlegung: was sind die Namen?">
 <linktarget COLOR="#2b4283" DESTINATION="ID_778018274" ENDARROW="Default" ENDINCLINATION="-1752;0;" ID="Arrow_ID_1022345699" SOURCE="ID_377787861" STARTARROW="None" STARTINCLINATION="795;544;"/>
 <linktarget COLOR="#5260a0" DESTINATION="ID_778018274" ENDARROW="Default" ENDINCLINATION="-1217;51;" ID="Arrow_ID_597388409" SOURCE="ID_266745032" STARTARROW="None" STARTINCLINATION="686;0;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@@ -11359,16 +11407,16 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354459978" ID="ID_1281610608" MODIFIED="1519354465459" TEXT="create or retrieve">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354633610" FOLDED="true" ID="ID_205066693" MODIFIED="1531584014147" TEXT="welches Limit ist notwendig?">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354633610" ID="ID_205066693" MODIFIED="1533608413750" TEXT="welches Limit ist notwendig?">
 <icon BUILTIN="help"/>
-<node CREATED="1519354649560" FOLDED="true" ID="ID_1983794575" MODIFIED="1525124216344" TEXT="globales Limit">
+<node CREATED="1519354649560" FOLDED="true" ID="ID_1983794575" MODIFIED="1533608416213" TEXT="globales Limit">
 <node CREATED="1519354660903" ID="ID_1601244663" MODIFIED="1519354670073" TEXT="Suche mit Z&#xe4;hlen"/>
 <node CREATED="1519354670949" ID="ID_803401695" MODIFIED="1519354673249" TEXT="Registry"/>
 </node>
-<node CREATED="1519354677373" FOLDED="true" ID="ID_1968452476" MODIFIED="1525124216344" TEXT="pro Fenster">
+<node CREATED="1519354677373" FOLDED="true" ID="ID_1968452476" MODIFIED="1533608416213" TEXT="pro Fenster">
 <node CREATED="1519354685828" ID="ID_966759751" MODIFIED="1519354691638" TEXT="genau wie global"/>
 </node>
-<node CREATED="1519354697578" FOLDED="true" ID="ID_1780825164" MODIFIED="1525124216345" TEXT="pro Endpunkt">
+<node CREATED="1519354697578" FOLDED="true" ID="ID_1780825164" MODIFIED="1533608416215" TEXT="pro Endpunkt">
 <node CREATED="1519354849469" ID="ID_1792932496" MODIFIED="1523752503840" TEXT="Variante des create-Mechanismus">
 <arrowlink COLOR="#807e9b" DESTINATION="ID_321705251" ENDARROW="Default" ENDINCLINATION="127;-96;" ID="Arrow_ID_1030149985" STARTARROW="None" STARTINCLINATION="390;-188;"/>
 </node>
@@ -11416,10 +11464,10 @@
 </node>
 <node COLOR="#338800" CREATED="1515726221600" ID="ID_1657507656" MODIFIED="1525124215006" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1515726234742" FOLDED="true" ID="ID_95404514" MODIFIED="1531584014147" TEXT="Prinzip">
+<node CREATED="1515726234742" ID="ID_95404514" MODIFIED="1533608413752" TEXT="Prinzip">
 <node CREATED="1515726238061" ID="ID_1475189544" MODIFIED="1515726244416" TEXT="ctor nimmt beliebige Funktion"/>
 <node CREATED="1515726245124" ID="ID_914794335" MODIFIED="1515726258014" TEXT="zerlegt und verifiziert Signatur"/>
-<node CREATED="1515726258819" FOLDED="true" ID="ID_1930194336" MODIFIED="1525124216345" TEXT="generiert ein Lambda">
+<node CREATED="1515726258819" FOLDED="true" ID="ID_1930194336" MODIFIED="1533608416217" TEXT="generiert ein Lambda">
 <node CREATED="1515726634601" ID="ID_41891466" MODIFIED="1515726639664" TEXT="geht das?">
 <icon BUILTIN="help"/>
 </node>
@@ -11462,7 +11510,7 @@
 </node>
 <node CREATED="1515726268721" ID="ID_243053845" MODIFIED="1515726329213" TEXT="welches intern PApply aufruft"/>
 </node>
-<node CREATED="1515732350136" FOLDED="true" ID="ID_1294398139" MODIFIED="1531584014148" TEXT="technisch....">
+<node CREATED="1515732350136" ID="ID_1294398139" MODIFIED="1533608413754" TEXT="technisch....">
 <node COLOR="#a41e57" CREATED="1515732356319" HGAP="25" ID="ID_1071937152" MODIFIED="1515800950319" TEXT="Problem: generisches Lambda in std::function binden">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="broken-line"/>
@@ -11480,7 +11528,7 @@
 </html></richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1515797030493" FOLDED="true" ID="ID_973074141" MODIFIED="1525124216345" TEXT="Nein: es ist wohl ehr der R&#xfc;ckgabetyp">
+<node CREATED="1515797030493" FOLDED="true" ID="ID_973074141" MODIFIED="1533608416218" TEXT="Nein: es ist wohl ehr der R&#xfc;ckgabetyp">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515798991747" ID="ID_1053457138" MODIFIED="1515799030345" TEXT="Allocator erbt nur von function"/>
 <node CREATED="1515799031197" ID="ID_516020279" MODIFIED="1515799045183" TEXT="Lambda liefert aber nur UICoord(UICoord)"/>
@@ -11488,7 +11536,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1515801302955" FOLDED="true" ID="ID_208115762" MODIFIED="1525124216345" TEXT="Argument-&#xdc;bergabe">
+<node COLOR="#338800" CREATED="1515801302955" FOLDED="true" ID="ID_208115762" MODIFIED="1533608416220" TEXT="Argument-&#xdc;bergabe">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515801313185" ID="ID_1411407565" MODIFIED="1515801322004" TEXT="Funktor bis in die Closure per Move"/>
 <node CREATED="1515801324016" ID="ID_814347755" MODIFIED="1515801353352" TEXT="Closure an PApply per const&amp;  --&gt;  Binder erzeugen"/>
@@ -11543,15 +11591,15 @@
 <node CREATED="1515634282345" ID="ID_788516837" MODIFIED="1518487921071" TEXT="kl&#xe4;ren, wer sie umsetzt">
 <icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1523752547477" FOLDED="true" ID="ID_1121433532" MODIFIED="1531584014149" TEXT="limitAllocation">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1523752547477" ID="ID_1121433532" MODIFIED="1533608413756" TEXT="limitAllocation">
 <icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1523752559939" ID="ID_597346628" MODIFIED="1529079670933" TEXT="umsetzen auf ElementAccess-API">
 <linktarget COLOR="#97cad5" DESTINATION="ID_597346628" ENDARROW="Default" ENDINCLINATION="126;9;" ID="Arrow_ID_89575203" SOURCE="ID_1979012219" STARTARROW="None" STARTINCLINATION="567;-16;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1525567190247" FOLDED="true" ID="ID_42079899" MODIFIED="1529079663449" TEXT="Problem: API noch nicht vollst&#xe4;ndig">
+<node COLOR="#338800" CREATED="1525567190247" FOLDED="true" ID="ID_42079899" MODIFIED="1533608416221" TEXT="Problem: API noch nicht vollst&#xe4;ndig">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1525567207940" FOLDED="true" HGAP="76" ID="ID_1154047307" MODIFIED="1531584013575" TEXT="wirklich zwei Zugriffe?" VSHIFT="-9">
+<node CREATED="1525567207940" FOLDED="true" HGAP="76" ID="ID_1154047307" MODIFIED="1533608415940" TEXT="wirklich zwei Zugriffe?" VSHIFT="-9">
 <icon BUILTIN="help"/>
 <node CREATED="1525567242728" ID="ID_408728922" MODIFIED="1525567256385" TEXT="Finden / Allozieren">
 <icon BUILTIN="full-1"/>
@@ -11559,7 +11607,7 @@
 <node CREATED="1525567257934" ID="ID_756598430" MODIFIED="1525567271113" TEXT="Zugang zu diesem Element">
 <icon BUILTIN="full-2"/>
 </node>
-<node CREATED="1525567314774" FOLDED="true" HGAP="-80" ID="ID_1634864230" MODIFIED="1531584013575" TEXT="warum?" VSHIFT="65">
+<node CREATED="1525567314774" FOLDED="true" HGAP="-80" ID="ID_1634864230" MODIFIED="1533608415626" TEXT="warum?" VSHIFT="65">
 <edge STYLE="linear"/>
 <node CREATED="1525567347850" ID="ID_314618181" MODIFIED="1525567352685" TEXT="DSL sauber halten"/>
 <node CREATED="1525567353825" ID="ID_729394034" MODIFIED="1525567362044" TEXT="Element-Access erfordert Visitor"/>
@@ -11571,9 +11619,9 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1525567474513" FOLDED="true" HGAP="136" ID="ID_492657286" MODIFIED="1529079658284" TEXT="ElementAccess-API umbauen" VSHIFT="5">
+<node COLOR="#338800" CREATED="1525567474513" FOLDED="true" HGAP="136" ID="ID_492657286" MODIFIED="1533608415943" TEXT="ElementAccess-API umbauen" VSHIFT="5">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1529016810234" FOLDED="true" ID="ID_190701762" MODIFIED="1531584013575" TEXT="M&#xf6;glichkeiten">
+<node CREATED="1529016810234" FOLDED="true" ID="ID_190701762" MODIFIED="1533608415631" TEXT="M&#xf6;glichkeiten">
 <node CREATED="1528988155980" FOLDED="true" ID="ID_425314989" MODIFIED="1531584013575" TEXT="Variante-1">
 <icon BUILTIN="full-1"/>
 <node CREATED="1528988234950" ID="ID_1668042554" MODIFIED="1528988252512" TEXT="UI-Coord zur&#xfc;ckliefern"/>
@@ -11611,7 +11659,7 @@
 <node CREATED="1529018125015" ID="ID_740978949" MODIFIED="1529018137465" TEXT="f&#xfc;gt den Variant-Record und den Konverter hinzu"/>
 </node>
 </node>
-<node CREATED="1529016854248" FOLDED="true" HGAP="37" ID="ID_1664191705" MODIFIED="1531584013576" TEXT="Abw&#xe4;gung" VSHIFT="5">
+<node CREATED="1529016854248" FOLDED="true" HGAP="37" ID="ID_1664191705" MODIFIED="1533608415635" TEXT="Abw&#xe4;gung" VSHIFT="5">
 <node CREATED="1529016871262" ID="ID_957194065" MODIFIED="1529017825322" TEXT="Variante-2 verschiebt das Problem">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -11708,7 +11756,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1529073415777" FOLDED="true" HGAP="19" ID="ID_834523571" MODIFIED="1531584013576" TEXT="L&#xf6;sung" VSHIFT="12">
+<node COLOR="#338800" CREATED="1529073415777" FOLDED="true" HGAP="19" ID="ID_834523571" MODIFIED="1533608415637" TEXT="L&#xf6;sung" VSHIFT="12">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1529073429723" FOLDED="true" ID="ID_100395564" MODIFIED="1531584013576" TEXT="Funktion locate_or_create()">
 <node CREATED="1529073456407" ID="ID_838325275" MODIFIED="1529073466881" TEXT="macht Zugriff und erzeugt ggfs neu"/>
@@ -11782,7 +11830,7 @@
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1522940161655" ID="ID_1905184084" MODIFIED="1522940166466" TEXT="pro Typ spezialisiert">
-<node COLOR="#338800" CREATED="1523752892269" FOLDED="true" ID="ID_1603142051" MODIFIED="1531584014149" TEXT="Problem: Instanzen">
+<node COLOR="#338800" CREATED="1523752892269" ID="ID_1603142051" MODIFIED="1533608413761" TEXT="Problem: Instanzen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1523752902739" ID="ID_1018267741" MODIFIED="1523752943957" TEXT="statische Felder gehen nicht ohne Weiteres">
 <icon BUILTIN="messagebox_warning"/>
@@ -11868,7 +11916,7 @@
 <node CREATED="1508809657253" ID="ID_108704029" MODIFIED="1512926191815" TEXT="Segfault">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1508809662036" ID="ID_1522595538" MODIFIED="1508809674479" TEXT="sehe zwar die drei Window-Elemente"/>
-<node CREATED="1508809674994" FOLDED="true" ID="ID_1781272984" MODIFIED="1531584014150" TEXT="aber die ID-Strings sind komisch">
+<node CREATED="1508809674994" ID="ID_1781272984" MODIFIED="1533608413762" TEXT="aber die ID-Strings sind komisch">
 <node CREATED="1508809684338" ID="ID_1268163778" MODIFIED="1508809688341" TEXT="erster String ist &quot;&quot;"/>
 <node CREATED="1508809688881" ID="ID_1836564528" MODIFIED="1508809700115" TEXT="zweiter String hat richtigen Anfang..."/>
 <node CREATED="1508809700919" ID="ID_733585050" MODIFIED="1508809716393" TEXT="aber wird mit nachfolgendem M&#xfc;ll angezeigt"/>
@@ -11934,12 +11982,12 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1509143404342" FOLDED="true" ID="ID_708195081" MODIFIED="1531584014177" TEXT="drillDown aufbohren">
+<node CREATED="1509143404342" ID="ID_708195081" MODIFIED="1533608413762" TEXT="drillDown aufbohren">
 <icon BUILTIN="ksmiletris"/>
 <node CREATED="1509143431491" ID="ID_1535839304" MODIFIED="1509143436685" TEXT="Pfad normal weiterverarbeiten"/>
 <node CREATED="1509143437202" ID="ID_1489524396" MODIFIED="1509143442917" TEXT="aber Abstieg im Baum manipulieren"/>
-<node CREATED="1509143453151" FOLDED="true" ID="ID_373632759" MODIFIED="1525124216345" TEXT="speziell...">
-<node CREATED="1509143459519" FOLDED="true" ID="ID_1727095948" MODIFIED="1525124215542" TEXT="existenz-Check l&#xe4;uft anders">
+<node CREATED="1509143453151" FOLDED="true" ID="ID_373632759" MODIFIED="1533608416222" TEXT="speziell...">
+<node CREATED="1509143459519" FOLDED="true" ID="ID_1727095948" MODIFIED="1533608415945" TEXT="existenz-Check l&#xe4;uft anders">
 <node CREATED="1509143492194" ID="ID_835507213" MODIFIED="1509143513852" TEXT="getType und stringvergleich"/>
 <node CREATED="1509143514352" ID="ID_730111393" MODIFIED="1509143519963" TEXT="statt hasAttribute"/>
 </node>
@@ -11962,7 +12010,7 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
-<node CREATED="1509151268071" FOLDED="true" ID="ID_38582779" MODIFIED="1531584014178" TEXT="getChildren aufbohren">
+<node CREATED="1509151268071" ID="ID_38582779" MODIFIED="1533608413764" TEXT="getChildren aufbohren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1509151285749" ID="ID_1826645914" MODIFIED="1509287428715" TEXT="eigentlich einfach">
 <icon BUILTIN="idea"/>
@@ -11971,7 +12019,7 @@
 <node CREATED="1509287541919" ID="ID_58868223" MODIFIED="1509287552668" TEXT="Aua! Iterator ist im weg">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node COLOR="#338800" CREATED="1509151289637" FOLDED="true" ID="ID_892381116" MODIFIED="1525124216345" TEXT="brauche singletonIter">
+<node COLOR="#338800" CREATED="1509151289637" FOLDED="true" ID="ID_892381116" MODIFIED="1533608416225" TEXT="brauche singletonIter">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1509151296292" ID="ID_1050274308" MODIFIED="1509151411655" TEXT="liefert ein einziges Element"/>
 <node CREATED="1509151305602" ID="ID_452317335" MODIFIED="1509287419861" TEXT="als IterSource verpackt">
@@ -12033,7 +12081,7 @@
 <node COLOR="#338800" CREATED="1513477957586" ID="ID_519256473" MODIFIED="1515209240701" TEXT="context-relativ: currentWindow().persp(&quot;perspective-B&quot;);">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1513477957586" FOLDED="true" ID="ID_1636269470" MODIFIED="1531584014178" TEXT="context-relativ-unl&#xf6;sbar: currentWindow().panel(&quot;panelY&quot;);">
+<node COLOR="#338800" CREATED="1513477957586" ID="ID_1636269470" MODIFIED="1533608413765" TEXT="context-relativ-unl&#xf6;sbar: currentWindow().panel(&quot;panelY&quot;);">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515209222726" ID="ID_959307669" MODIFIED="1515209232972" TEXT="aber ankerbar!">
 <icon BUILTIN="idea"/>
@@ -12068,17 +12116,17 @@
 </node>
 <node COLOR="#338800" CREATED="1515287665939" ID="ID_525267705" MODIFIED="1518487921071" TEXT="l&#xf6;sbare coverage">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1515287701126" FOLDED="true" ID="ID_1257691503" MODIFIED="1531584014179" TEXT="noch nicht berechnet: errechnen">
+<node COLOR="#338800" CREATED="1515287701126" ID="ID_1257691503" MODIFIED="1533608413765" TEXT="noch nicht berechnet: errechnen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1515291242698" ID="ID_512594119" MODIFIED="1518487921071" TEXT="mu&#xdf; re-normalisieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1515291264591" FOLDED="true" ID="ID_250465802" MODIFIED="1525124216345" TEXT="sollte dann coverDepth neu errechnen">
+<node CREATED="1515291264591" FOLDED="true" ID="ID_250465802" MODIFIED="1533608416226" TEXT="sollte dann coverDepth neu errechnen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1515305853681" ID="ID_1757724837" MODIFIED="1515305908431" TEXT="nicht notwendig">
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node CREATED="1515305858184" FOLDED="true" ID="ID_1728979618" MODIFIED="1525124215542">
+<node CREATED="1515305858184" FOLDED="true" ID="ID_1728979618" MODIFIED="1533608415946">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -12095,17 +12143,17 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1515287694871" FOLDED="true" ID="ID_953283273" MODIFIED="1531584014179" TEXT="schon berechnet: eintragen">
+<node COLOR="#338800" CREATED="1515287694871" ID="ID_953283273" MODIFIED="1533608413767" TEXT="schon berechnet: eintragen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515291343277" ID="ID_1704851738" MODIFIED="1518487921071" TEXT="explizites Cover machen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1515291350332" FOLDED="true" ID="ID_219986282" MODIFIED="1525124216345" TEXT="neue coverDepth mu&#xdf; sichtbar werden">
+<node COLOR="#338800" CREATED="1515291350332" FOLDED="true" ID="ID_219986282" MODIFIED="1533608416229" TEXT="neue coverDepth mu&#xdf; sichtbar werden">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515298565483" ID="ID_719457405" MODIFIED="1515298571802" TEXT="Autsch">
 <icon BUILTIN="smily_bad"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1515298572994" FOLDED="true" ID="ID_1082678541" MODIFIED="1525124215542" TEXT="Denkfehler im Builder-Konzept!">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1515298572994" FOLDED="true" ID="ID_1082678541" MODIFIED="1533608415948" TEXT="Denkfehler im Builder-Konzept!">
 <icon BUILTIN="broken-line"/>
 <node CREATED="1515298602326" ID="ID_13919667" MODIFIED="1515298692557" TEXT="R&#xfc;ckgabe ist Value...">
 <richcontent TYPE="NOTE"><html>
@@ -12130,7 +12178,7 @@
 <node COLOR="#338800" CREATED="1515298710952" ID="ID_167586553" MODIFIED="1515298806412" TEXT="L&#xf6;sung: &amp;&amp; zur&#xfc;ckgeben">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1515298722702" FOLDED="true" ID="ID_273407473" MODIFIED="1525124215542" TEXT="k&#xf6;nnte gef&#xe4;hrlich sein">
+<node CREATED="1515298722702" FOLDED="true" ID="ID_273407473" MODIFIED="1533608415951" TEXT="k&#xf6;nnte gef&#xe4;hrlich sein">
 <icon BUILTIN="bell"/>
 <node CREATED="1515298735548" ID="ID_966210103" MODIFIED="1515298746799" TEXT="Stichwort: Sequence Points"/>
 <node CREATED="1515298747531" ID="ID_1013710090" MODIFIED="1515298752254" TEXT="im Debugger beobachtet"/>
@@ -12165,7 +12213,7 @@
 <node COLOR="#338800" CREATED="1515455289417" ID="ID_228177396" MODIFIED="1515555650682" TEXT="&#xdc;berlapp == 1 scheitert">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1515455296784" FOLDED="true" ID="ID_957569216" MODIFIED="1531584014179" TEXT="sinnvolle Fehlermeldung">
+<node COLOR="#338800" CREATED="1515455296784" ID="ID_957569216" MODIFIED="1533608413769" TEXT="sinnvolle Fehlermeldung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1515456807297" ID="ID_940232878" MODIFIED="1515555654366" TEXT="ausgehend von expliziter Spec">
 <icon BUILTIN="button_ok"/>
@@ -12250,7 +12298,7 @@
 </node>
 <node CREATED="1518221188121" ID="ID_541455871" MODIFIED="1518762392404" TEXT="Anfrage auf (tiefen) Pfad">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1518221206998" FOLDED="true" ID="ID_1900776687" MODIFIED="1531584014180" TEXT="komplett explizit">
+<node CREATED="1518221206998" ID="ID_1900776687" MODIFIED="1533608413770" TEXT="komplett explizit">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518221213277" ID="ID_1744618018" MODIFIED="1518762392404" TEXT="covered">
 <icon BUILTIN="button_ok"/>
@@ -12271,7 +12319,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1518221321054" FOLDED="true" ID="ID_1884750439" MODIFIED="1531584014181" TEXT="Wildcard">
+<node CREATED="1518221321054" ID="ID_1884750439" MODIFIED="1533608413771" TEXT="Wildcard">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518221328398" ID="ID_771962346" MODIFIED="1518762392404" TEXT="covered">
 <icon BUILTIN="button_ok"/>
@@ -12307,7 +12355,7 @@
 <node COLOR="#338800" CREATED="1518221482345" ID="ID_867150257" MODIFIED="1518762392404" TEXT="erste unerf&#xfc;llbar">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1518221509805" FOLDED="true" ID="ID_1191463024" MODIFIED="1531584014181" TEXT="erste create">
+<node CREATED="1518221509805" ID="ID_1191463024" MODIFIED="1533608413771" TEXT="erste create">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518221525891" ID="ID_395077893" MODIFIED="1518762392404" TEXT="erf&#xfc;llbar">
 <icon BUILTIN="button_ok"/>
@@ -12316,7 +12364,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1518221571021" FOLDED="true" ID="ID_1917057944" MODIFIED="1531584014182" TEXT="zweite create">
+<node CREATED="1518221571021" ID="ID_1917057944" MODIFIED="1533608413772" TEXT="zweite create">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518221582347" ID="ID_1796461457" MODIFIED="1518762392404" TEXT="erste erf&#xfc;llbar">
 <icon BUILTIN="button_ok"/>
@@ -12375,14 +12423,14 @@
 <node COLOR="#338800" CREATED="1518223141623" ID="ID_1610919464" MODIFIED="1518742653179" TEXT="on wildcard">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1518223149750" FOLDED="true" ID="ID_1733413613" MODIFIED="1531584014182" TEXT="on wildcard fail">
+<node COLOR="#338800" CREATED="1518223149750" ID="ID_1733413613" MODIFIED="1533608413772" TEXT="on wildcard fail">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1518742624742" ID="ID_1245433967" MODIFIED="1518742630585" TEXT="implizit mitgetestet">
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1518742642180" ID="ID_194206742" MODIFIED="1518742648655" TEXT="....indem die n&#xe4;chste Regel zieht"/>
 </node>
-<node COLOR="#338800" CREATED="1518223044301" FOLDED="true" ID="ID_1476637837" MODIFIED="1531584014182" TEXT="generic window + panel create">
+<node COLOR="#338800" CREATED="1518223044301" ID="ID_1476637837" MODIFIED="1533608413772" TEXT="generic window + panel create">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518762440997" ID="ID_606433871" MODIFIED="1518840066703" TEXT="ggfs auto-elided?">
 <arrowlink COLOR="#8eacb9" DESTINATION="ID_214794727" ENDARROW="Default" ENDINCLINATION="-653;0;" ID="Arrow_ID_1678351989" STARTARROW="None" STARTINCLINATION="1400;0;"/>
@@ -12614,7 +12662,7 @@
 <node CREATED="1504962233718" ID="ID_949042440" MODIFIED="1518487921073" TEXT="ist opaque"/>
 <node CREATED="1504962251844" ID="ID_1229791291" MODIFIED="1518487921073" TEXT="Effizienz">
 <linktarget COLOR="#8e79a4" DESTINATION="ID_1229791291" ENDARROW="Default" ENDINCLINATION="16;-93;" ID="Arrow_ID_277133142" SOURCE="ID_141842675" STARTARROW="None" STARTINCLINATION="133;0;"/>
-<node CREATED="1504831930030" FOLDED="true" ID="ID_1191902349" MODIFIED="1531584014183" TEXT="double dispatch?">
+<node CREATED="1504831930030" ID="ID_1191902349" MODIFIED="1533608413773" TEXT="double dispatch?">
 <linktarget COLOR="#6b768e" DESTINATION="ID_1191902349" ENDARROW="Default" ENDINCLINATION="28;-22;" ID="Arrow_ID_1105816510" SOURCE="ID_1380298925" STARTARROW="None" STARTINCLINATION="113;3;"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1504832179925" ID="ID_878950103" MODIFIED="1518487921073" TEXT="w&#xe4;re akzeptabel"/>
@@ -12649,7 +12697,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1504832266793" FOLDED="true" ID="ID_1279692021" MODIFIED="1531584014183" TEXT="einfache Funktoren?">
+<node CREATED="1504832266793" ID="ID_1279692021" MODIFIED="1533608413774" TEXT="einfache Funktoren?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1504832394952" ID="ID_85672659" MODIFIED="1518487921073">
 <richcontent TYPE="NODE"><html>
@@ -12697,15 +12745,15 @@
 <linktarget COLOR="#b16174" DESTINATION="ID_879982156" ENDARROW="Default" ENDINCLINATION="154;-219;" ID="Arrow_ID_1853267431" SOURCE="ID_673872785" STARTARROW="None" STARTINCLINATION="-401;0;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1504884422206" ID="ID_1738943559" MODIFIED="1518487921073" TEXT="Anforderungen">
-<node CREATED="1504884432700" FOLDED="true" ID="ID_1124930479" MODIFIED="1531584014184" TEXT="wir brauchen">
+<node CREATED="1504884432700" ID="ID_1124930479" MODIFIED="1533608413776" TEXT="wir brauchen">
 <node CREATED="1504884465448" ID="ID_158939863" MODIFIED="1518487921073" TEXT="schlie&#xdf;lich.... Aufruf an den PanelManager"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504884487533" FOLDED="true" ID="ID_1578364370" MODIFIED="1525124216345" TEXT="Art des Aufrufes">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504884487533" FOLDED="true" ID="ID_1578364370" MODIFIED="1533608416230" TEXT="Art des Aufrufes">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1504885358585" ID="ID_1662504157" MODIFIED="1518487921073" TEXT="erzeuge neu in Panel(coord)"/>
 <node CREATED="1504885435351" ID="ID_1583789854" MODIFIED="1518487921073" TEXT="ersetze in Panel(coord)"/>
 <node CREATED="1504885503118" ID="ID_883040433" MODIFIED="1518487921073" TEXT="entferne view(ID) aus Panel(coord)"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504885554399" FOLDED="true" ID="ID_1868485493" MODIFIED="1525124216346">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504885554399" FOLDED="true" ID="ID_1868485493" MODIFIED="1533608416233">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -12717,7 +12765,7 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1504885680095" FOLDED="true" ID="ID_1828531407" MODIFIED="1525124215543" TEXT="sicherstellen">
+<node CREATED="1504885680095" FOLDED="true" ID="ID_1828531407" MODIFIED="1533608415953" TEXT="sicherstellen">
 <node CREATED="1504885686470" ID="ID_450596618" MODIFIED="1518487921073" TEXT="-- nix --"/>
 <node CREATED="1504885692389" ID="ID_735840491" MODIFIED="1518487921073" TEXT="global einer"/>
 <node CREATED="1504885708291" ID="ID_304260062" MODIFIED="1518487921073" TEXT="limit pro Fenster"/>
@@ -12726,7 +12774,7 @@
 <arrowlink COLOR="#21428c" DESTINATION="ID_660502374" ENDARROW="Default" ENDINCLINATION="30;-48;" ID="Arrow_ID_900798705" STARTARROW="None" STARTINCLINATION="158;0;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504886036743" FOLDED="true" ID="ID_1013293844" MODIFIED="1525124216346" TEXT="UI-Koordinaten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504886036743" FOLDED="true" ID="ID_1013293844" MODIFIED="1533608416241" TEXT="UI-Koordinaten">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1504886051389" ID="ID_1177567162" MODIFIED="1518487921073" TEXT="Tupel {Fenster, Perspektive, Panel, Gruppe, Pfad}"/>
@@ -12748,19 +12796,19 @@
 <node CREATED="1504886119604" ID="ID_206635297" MODIFIED="1518487921073" TEXT="komplexes Thema">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1504885799423" FOLDED="true" ID="ID_660502374" MODIFIED="1525124215543" TEXT="coordinate resolver">
+<node CREATED="1504885799423" FOLDED="true" ID="ID_660502374" MODIFIED="1533608415957" TEXT="coordinate resolver">
 <linktarget COLOR="#21428c" DESTINATION="ID_660502374" ENDARROW="Default" ENDINCLINATION="30;-48;" ID="Arrow_ID_900798705" SOURCE="ID_894995512" STARTARROW="None" STARTINCLINATION="158;0;"/>
-<node CREATED="1504885810485" FOLDED="true" ID="ID_822801746" MODIFIED="1525124215529" TEXT="Fenster">
+<node CREATED="1504885810485" FOLDED="true" ID="ID_822801746" MODIFIED="1533608415640" TEXT="Fenster">
 <node CREATED="1504885841193" ID="ID_202708982" MODIFIED="1518487921073" TEXT="by ID"/>
 <node CREATED="1504885820724" ID="ID_1450511748" MODIFIED="1518487921073" TEXT="erstes"/>
 <node CREATED="1504885827803" ID="ID_1198849275" MODIFIED="1518487921073" TEXT="aktuelles"/>
 </node>
 <node CREATED="1504885855551" ID="ID_812520157" MODIFIED="1518487921073" TEXT="match Perspektive"/>
-<node CREATED="1504885875884" FOLDED="true" ID="ID_1808427553" MODIFIED="1525124215529" TEXT="Panel">
+<node CREATED="1504885875884" FOLDED="true" ID="ID_1808427553" MODIFIED="1533608415642" TEXT="Panel">
 <node CREATED="1504885879652" ID="ID_1434158169" MODIFIED="1518487921073" TEXT="hasPanel(Window)"/>
 <node CREATED="1504885976847" ID="ID_290757972" MODIFIED="1518487921073" TEXT="createPanel"/>
 </node>
-<node CREATED="1504886006459" FOLDED="true" ID="ID_1307875760" MODIFIED="1525124215529" TEXT="group">
+<node CREATED="1504886006459" FOLDED="true" ID="ID_1307875760" MODIFIED="1533608415643" TEXT="group">
 <node CREATED="1504886010442" ID="ID_1660557914" MODIFIED="1518487921073" TEXT="panel has group"/>
 </node>
 </node>
@@ -12770,16 +12818,16 @@
 </node>
 </node>
 </node>
-<node CREATED="1504886210096" FOLDED="true" ID="ID_1980896942" MODIFIED="1531584014184" TEXT="locate -&gt;">
+<node CREATED="1504886210096" ID="ID_1980896942" MODIFIED="1533608413780" TEXT="locate -&gt;">
 <node CREATED="1504886227678" ID="ID_1936525982" MODIFIED="1518487921073" TEXT="existiert | machbar | unm&#xf6;glich"/>
 <node CREATED="1504959598053" ID="ID_952692651" MODIFIED="1518487921073" TEXT="Zielkoordinaten"/>
 </node>
-<node CREATED="1504959603212" FOLDED="true" ID="ID_627664382" MODIFIED="1531584014185" TEXT="alloc -&gt;">
+<node CREATED="1504959603212" ID="ID_627664382" MODIFIED="1533608413780" TEXT="alloc -&gt;">
 <node CREATED="1504959659068" ID="ID_389794808" MODIFIED="1518487921073" TEXT="allocator(Zielkoordinaten, managementScope, limit)"/>
 <node CREATED="1504959829510" ID="ID_570145960" MODIFIED="1518487921073" TEXT="POST: neuer / alter View unter Zielkoordinaten erreichbar"/>
 <node CREATED="1504959871472" ID="ID_864423184" MODIFIED="1518487921073" TEXT="ggfs rekonfigurieren..."/>
 </node>
-<node CREATED="1504961752279" FOLDED="true" ID="ID_361507996" MODIFIED="1531584014185" TEXT="Signaturen">
+<node CREATED="1504961752279" ID="ID_361507996" MODIFIED="1533608413780" TEXT="Signaturen">
 <node CREATED="1504961759077" ID="ID_627682268" MODIFIED="1518487921073" TEXT="locate: UICoord"/>
 <node CREATED="1504961784098" ID="ID_268457753" MODIFIED="1518487921073" TEXT="count: UICoord(UICoord)"/>
 </node>
@@ -12790,7 +12838,7 @@
 <node CREATED="1504962506970" ID="ID_726895192" MODIFIED="1518487921073" TEXT="perspective(id)"/>
 <node CREATED="1504962522800" ID="ID_224266262" MODIFIED="1518487921074" TEXT="panel(id)"/>
 <node CREATED="1504962530335" ID="ID_465095301" MODIFIED="1518487921074" TEXT="existingPanel(id)"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504962643384" FOLDED="true" ID="ID_1610178620" MODIFIED="1531584014185" TEXT="existingGroup">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504962643384" ID="ID_1610178620" MODIFIED="1533608413781" TEXT="existingGroup">
 <icon BUILTIN="help"/>
 <node CREATED="1504962664781" ID="ID_261278011" MODIFIED="1518487921074" TEXT="ist das implementierbar?"/>
 <node CREATED="1504962671884" ID="ID_583107872" MODIFIED="1518487921074" TEXT="braucht verdeckten Parameter"/>
@@ -12809,7 +12857,7 @@
 <node CREATED="1506034536976" ID="ID_760545085" MODIFIED="1522937397270" TEXT="locationSpec ist direkt eine UICoord">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1506114845775" ID="ID_98017975" MODIFIED="1518487921074" TEXT="mu&#xdf; DSL-Elemente unterst&#xfc;tzen"/>
-<node CREATED="1506034566805" FOLDED="true" ID="ID_726919191" MODIFIED="1531584014185" TEXT="ODER-Behandlung wandert in UICoord">
+<node CREATED="1506034566805" ID="ID_726919191" MODIFIED="1533608413782" TEXT="ODER-Behandlung wandert in UICoord">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1515632006668" ID="ID_1085098385" MODIFIED="1518487921074" TEXT="wirklich?">
 <icon BUILTIN="broken-line"/>
 </node>
@@ -12852,7 +12900,7 @@
 <cloud COLOR="#e6d0a4"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="pencil"/>
-<node CREATED="1504833146196" FOLDED="true" ID="ID_278904211" MODIFIED="1531584014186" TEXT="Timeline">
+<node CREATED="1504833146196" ID="ID_278904211" MODIFIED="1533608413783" TEXT="Timeline">
 <node CREATED="1504833174961" ID="ID_1294462811" MODIFIED="1518487921074" TEXT="im Timeline-Panel der Gruppe hinzuf&#xfc;gen"/>
 <node CREATED="1504882791007" ID="ID_1520721786" MODIFIED="1518487921074">
 <richcontent TYPE="NODE"><html>
@@ -12870,7 +12918,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1504833569692" FOLDED="true" ID="ID_1069272084" MODIFIED="1531584014186" TEXT="Viewer">
+<node CREATED="1504833569692" ID="ID_1069272084" MODIFIED="1533608413809" TEXT="Viewer">
 <node CREATED="1504834559240" ID="ID_423545167" MODIFIED="1518487921074" TEXT="nur ein einziger(global)"/>
 <node CREATED="1504883102734" ID="ID_81147050" MODIFIED="1518487921074">
 <richcontent TYPE="NODE"><html>
@@ -12922,7 +12970,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1504833572687" FOLDED="true" ID="ID_715257949" MODIFIED="1531584014187" TEXT="(Asset)Bin">
+<node CREATED="1504833572687" ID="ID_715257949" MODIFIED="1533608413811" TEXT="(Asset)Bin">
 <node CREATED="1504834228100" ID="ID_189081279" MODIFIED="1518487921074">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -12957,7 +13005,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1504833574246" FOLDED="true" ID="ID_1680764695" MODIFIED="1531584014187" TEXT="FehlerLog">
+<node CREATED="1504833574246" ID="ID_1680764695" MODIFIED="1533608413812" TEXT="FehlerLog">
 <node CREATED="1504834859584" ID="ID_693499241" MODIFIED="1518487921074" TEXT="im aktuellen Infobox-Panel"/>
 <node CREATED="1504883112068" ID="ID_308640581" MODIFIED="1518487921074">
 <richcontent TYPE="NODE"><html>
@@ -12978,7 +13026,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1504833575700" FOLDED="true" ID="ID_1341951504" MODIFIED="1531584014187" TEXT="Playcontrol">
+<node CREATED="1504833575700" ID="ID_1341951504" MODIFIED="1533608413812" TEXT="Playcontrol">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504883115283" ID="ID_236325043" MODIFIED="1518487921075" TEXT="?">
 <icon BUILTIN="help"/>
 </node>
@@ -12986,10 +13034,10 @@
 </node>
 <node CREATED="1504880643748" ID="ID_1148134938" MODIFIED="1518487921075" TEXT="Design">
 <node CREATED="1504880653395" ID="ID_110525549" MODIFIED="1518487921075" TEXT="Regel-artig"/>
-<node CREATED="1504880660666" FOLDED="true" ID="ID_959703053" MODIFIED="1531584014188" TEXT="mit Pr&#xe4;zedenz">
+<node CREATED="1504880660666" ID="ID_959703053" MODIFIED="1533608413814" TEXT="mit Pr&#xe4;zedenz">
 <node CREATED="1504880672873" ID="ID_355744291" MODIFIED="1518487921075" TEXT="Liste von Definitionen"/>
 <node CREATED="1504880685783" ID="ID_1363213536" MODIFIED="1518487921075" TEXT="vom Speziellsten zum Allgemeinen"/>
-<node CREATED="1504880722394" FOLDED="true" ID="ID_1620814124" MODIFIED="1525124216346">
+<node CREATED="1504880722394" FOLDED="true" ID="ID_1620814124" MODIFIED="1533608416242">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -13012,15 +13060,15 @@
 <node CREATED="1504881104919" ID="ID_1302649814" MODIFIED="1518487921075" TEXT="diese sind inh&#xe4;rent getypt"/>
 <node CREATED="1504881124612" ID="ID_41842721" MODIFIED="1518487921075" TEXT="Spezifikation per Zuweisung"/>
 <node CREATED="1504881139794" ID="ID_1982949721" MODIFIED="1518487921075" TEXT="zugewiesener Ausdruck ist passend getypt">
-<node CREATED="1506120341257" FOLDED="true" ID="ID_1629432417" MODIFIED="1531584014188" TEXT="Loaction-Spec">
+<node CREATED="1506120341257" ID="ID_1629432417" MODIFIED="1533608413815" TEXT="Loaction-Spec">
 <node CREATED="1506120349336" ID="ID_1516960868" MODIFIED="1518487921075" TEXT="Menge von UI-Koordinaten"/>
 <node CREATED="1506120361846" ID="ID_1024931059" MODIFIED="1518487921075" TEXT="unterst&#xfc;tzt Alternativen"/>
 <node CREATED="1506120367605" ID="ID_1489367458" MODIFIED="1518487921075" TEXT="w&#xe4;hlt den ersten anwendbaren"/>
 </node>
-<node CREATED="1506120374116" FOLDED="true" ID="ID_1552148308" MODIFIED="1531584014189" TEXT="Allocator-Def">
+<node CREATED="1506120374116" ID="ID_1552148308" MODIFIED="1533608413815" TEXT="Allocator-Def">
 <node CREATED="1506120380940" ID="ID_1553891423" MODIFIED="1518487921075" TEXT="ein Funktor UICorrd(UIcoord)"/>
 <node CREATED="1506120391506" ID="ID_1217740236" MODIFIED="1518487921075" TEXT="Semantik: nimmt Spec und erzeugt konkretes Ziel"/>
-<node CREATED="1506120410863" FOLDED="true" ID="ID_1205747223" MODIFIED="1525124216346" TEXT="Allocaotor-Specs">
+<node CREATED="1506120410863" FOLDED="true" ID="ID_1205747223" MODIFIED="1533608416245" TEXT="Allocaotor-Specs">
 <node CREATED="1506120420910" ID="ID_6299376" MODIFIED="1518487921075" TEXT="Hilfs-Tokens"/>
 <node CREATED="1506120425773" ID="ID_195710124" MODIFIED="1518487921075" TEXT="partielle Funktionsanwendung">
 <icon BUILTIN="idea"/>
@@ -13029,10 +13077,10 @@
 </node>
 </node>
 <node CREATED="1504881149417" ID="ID_178442113" MODIFIED="1518487921075" TEXT="Alternativen">
-<node CREATED="1504881193043" FOLDED="true" ID="ID_1759689335" MODIFIED="1531584014189" TEXT="Komma-Operator">
+<node CREATED="1504881193043" ID="ID_1759689335" MODIFIED="1533608413816" TEXT="Komma-Operator">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1504881756073" ID="ID_1341009121" MODIFIED="1518487921075" TEXT="niedrigere Pr&#xe4;zedenz als ="/>
-<node CREATED="1504882453091" FOLDED="true" ID="ID_870917199" MODIFIED="1525124216346" TEXT="damit sehr einfach zu implementieren">
+<node CREATED="1504882453091" FOLDED="true" ID="ID_870917199" MODIFIED="1533608416248" TEXT="damit sehr einfach zu implementieren">
 <icon BUILTIN="idea"/>
 <node CREATED="1504882554718" ID="ID_744764331" MODIFIED="1518487921075" TEXT="weil auf dem DSL-Proxy"/>
 <node CREATED="1504882560202" ID="ID_1190541919" MODIFIED="1518487921075" TEXT="egal, wenn beide Seiten der Zuweisung DSL sind"/>
@@ -13054,15 +13102,15 @@
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node CREATED="1504881197490" FOLDED="true" ID="ID_1696182789" MODIFIED="1531584014190" TEXT="Oder-Operator">
+<node CREATED="1504881197490" ID="ID_1696182789" MODIFIED="1533608413818" TEXT="Oder-Operator">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1504882423975" ID="ID_884614259" MODIFIED="1518487921075" TEXT="h&#xf6;here Pr&#xe4;zedenz als ="/>
-<node CREATED="1504882434846" FOLDED="true" ID="ID_1018309959" MODIFIED="1525124216346" TEXT="zwei Alternativen">
+<node CREATED="1504882434846" FOLDED="true" ID="ID_1018309959" MODIFIED="1533608416249" TEXT="zwei Alternativen">
 <arrowlink COLOR="#1f6dc8" DESTINATION="ID_986692736" ENDARROW="Default" ENDINCLINATION="-13;-31;" ID="Arrow_ID_1057642367" STARTARROW="None" STARTINCLINATION="88;6;"/>
 <node CREATED="1504882621302" ID="ID_1942501913" MODIFIED="1518487921075" TEXT="or"/>
 <node CREATED="1504882633268" ID="ID_1285507370" MODIFIED="1518487921075" TEXT="|"/>
 </node>
-<node CREATED="1504882529890" FOLDED="true" ID="ID_233096485" MODIFIED="1525124216346" TEXT="semantisch klar">
+<node CREATED="1504882529890" FOLDED="true" ID="ID_233096485" MODIFIED="1533608416250" TEXT="semantisch klar">
 <icon BUILTIN="yes"/>
 <node CREATED="1504882657576" ID="ID_986692736" MODIFIED="1518487921075" TEXT="beide Alternativen bieten">
 <linktarget COLOR="#1f6dc8" DESTINATION="ID_986692736" ENDARROW="Default" ENDINCLINATION="-13;-31;" ID="Arrow_ID_1057642367" SOURCE="ID_1018309959" STARTARROW="None" STARTINCLINATION="88;6;"/>
@@ -13071,7 +13119,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1517970380222" FOLDED="true" ID="ID_1663499246" MODIFIED="1525124216346" TEXT="trickreich zu implementieren">
+<node COLOR="#990000" CREATED="1517970380222" FOLDED="true" ID="ID_1663499246" MODIFIED="1533608416252" TEXT="trickreich zu implementieren">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1517970403323" ID="ID_676104700" MODIFIED="1518487921075" TEXT="...wofern &#xfc;berhaupt m&#xf6;glich"/>
 <node CREATED="1517970410690" ID="ID_1716625175" MODIFIED="1518487921075" TEXT="Problem sind die LocationClauses">
@@ -13353,11 +13401,11 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1523232932724" FOLDED="true" ID="ID_386898631" MODIFIED="1531584014190" TEXT="Runtime-Compiletime-Problem">
+<node CREATED="1523232932724" ID="ID_386898631" MODIFIED="1533608413821" TEXT="Runtime-Compiletime-Problem">
 <node CREATED="1523232945043" ID="ID_45452812" MODIFIED="1523232954053" TEXT="erst zur Laufzeit wissen wir, was zur&#xfc;ckkommt"/>
 <node CREATED="1523233007258" ID="ID_1076174983" MODIFIED="1523233019060" TEXT="aber zur Compilezeit m&#xfc;ssen wir schon den Cast vorbereiten"/>
 </node>
-<node COLOR="#338800" CREATED="1523233031479" FOLDED="true" ID="ID_1135973571" MODIFIED="1531584014190" TEXT="Idee: Visitor spezialisieren">
+<node COLOR="#338800" CREATED="1523233031479" ID="ID_1135973571" MODIFIED="1533608413821" TEXT="Idee: Visitor spezialisieren">
 <linktarget COLOR="#3f6796" DESTINATION="ID_1135973571" ENDARROW="Default" ENDINCLINATION="-62;1;" ID="Arrow_ID_290291364" SOURCE="ID_1510464943" STARTARROW="None" STARTINCLINATION="8;-34;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1523233049316" ID="ID_278890079" MODIFIED="1523396787384" TEXT="er implementiert &#xfc;berhaupt nur den Fall, der geht">
@@ -13585,10 +13633,21 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193163264" ID="ID_1943521361" MODIFIED="1518487921076" TEXT="#1104 how to instruct actions through panels">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193163264" ID="ID_1943521361" MODIFIED="1533608449611" TEXT="#1104 how to instruct actions through panels">
 <arrowlink COLOR="#806893" DESTINATION="ID_1020871440" ENDARROW="Default" ENDINCLINATION="-3;460;" ID="Arrow_ID_412107208" STARTARROW="Default" STARTINCLINATION="-618;-18;"/>
 <arrowlink COLOR="#b37033" DESTINATION="ID_945788817" ENDARROW="None" ENDINCLINATION="-67;-71;" ID="Arrow_ID_61914" STARTARROW="Default" STARTINCLINATION="-618;-18;"/>
+<linktarget COLOR="#9e99b7" DESTINATION="ID_1943521361" ENDARROW="Default" ENDINCLINATION="-1423;-376;" ID="Arrow_ID_779469840" SOURCE="ID_1446703192" STARTARROW="None" STARTINCLINATION="920;0;"/>
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1533608904623" HGAP="23" ID="ID_1433582308" MODIFIED="1533608919938" TEXT="Anforderungen" VSHIFT="-13">
+<icon BUILTIN="yes"/>
+<node CREATED="1533608945321" ID="ID_585599427" MODIFIED="1533608961747" TEXT="Zugang via ViewLocator"/>
+<node CREATED="1533608737142" ID="ID_752377318" MODIFIED="1533608980481" TEXT="der ausf&#xfc;hrende View-Erzeuger braucht Zugang zum UI-Bus"/>
+<node CREATED="1533608822826" ID="ID_1500698931" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig">
+<node CREATED="1533609015728" ID="ID_808376623" MODIFIED="1533609027770" TEXT="der nominelle Typ ergibt sich aus der Art der View"/>
+<node CREATED="1533609029094" ID="ID_1039386191" MODIFIED="1533609047527" TEXT="der Symbol-Teil der ID mu&#xdf; vorhersagbar sein"/>
+<node CREATED="1533609056050" ID="ID_1606983628" MODIFIED="1533609064701" TEXT="oder explizit anzufordern"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193392483" ID="ID_912677550" MODIFIED="1518487921076" TEXT="PanelManager mu&#xdf; umgeschrieben werden">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -13879,6 +13938,27 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240056019" HGAP="33" ID="ID_1526164022" MODIFIED="1529240077686" TEXT="#1144 refactor dock handling" VSHIFT="-6">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1533609225355" ID="ID_1031484560" MODIFIED="1533609232990" TEXT="Definitionen festlegen">
+<node CREATED="1533609236849" ID="ID_429407869" MODIFIED="1533609246416" TEXT="was ist ein Panel?">
+<icon BUILTIN="yes"/>
+<node CREATED="1533609255486" ID="ID_540986387" MODIFIED="1533609275839" TEXT="identifizierbarer Teilraum im UI"/>
+<node CREATED="1533609277164" ID="ID_1581083802" MODIFIED="1533609290461" TEXT="ID ist Benennung + Typ"/>
+<node CREATED="1533609292426" ID="ID_50953202" MODIFIED="1533609315339" TEXT="Typ legt aber auch teilw. die Platzierung/Pr&#xe4;sentation fest"/>
+<node CREATED="1533609332484" ID="ID_68265965" MODIFIED="1533609346342" TEXT="Panel selber ist &quot;substanzlos&quot;">
+<node CREATED="1533609349730" ID="ID_1199787724" MODIFIED="1533609376170" TEXT="es wird durch seinen Inhalt mit geschaffen"/>
+<node CREATED="1533609378773" ID="ID_896598248" MODIFIED="1533609383161" TEXT="Fallunterscheidung">
+<node CREATED="1533609385005" HGAP="22" ID="ID_323786393" MODIFIED="1533609406631" TEXT="instruiert">
+<node CREATED="1533609411841" ID="ID_1992759255" MODIFIED="1533609416652" TEXT="View-Anforderung"/>
+<node CREATED="1533609417360" ID="ID_1927712425" MODIFIED="1533609433146" TEXT="die ViewSpect-DSL bestimmt, in welchem Panel er erzeugt wird"/>
+</node>
+<node CREATED="1533609393060" ID="ID_1618346972" MODIFIED="1533609401687" TEXT="per UI-Aktion erzeugt">
+<node CREATED="1533609456899" ID="ID_1800763961" MODIFIED="1533609480660" TEXT="erzugt Panel mit seinem Standard-Inhalt (gem&#xe4;&#xdf; Panel-Typ)"/>
+<node CREATED="1533609484543" ID="ID_381189275" MODIFIED="1533609505632" TEXT="dieser Standard-Inhalt wird generisch/per-default generiert"/>
+</node>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1529235573383" HGAP="36" ID="ID_1156887553" MODIFIED="1529235603008" TEXT="Aufteilen" VSHIFT="9">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@@ -15907,27 +15987,42 @@
 <icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401271538" ID="ID_613065826" MODIFIED="1533401302008" TEXT="erst mal nur eine Nachricht als UI-Notification">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1533403219885" TEXT="#1099 DemoGuiRoundtrip">
+<arrowlink COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" STARTARROW="None" STARTINCLINATION="418;-44;"/>
+<icon BUILTIN="flag-pink"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401303142" ID="ID_1338326263" MODIFIED="1533401327708" TEXT="hart gecodeten initialen Diff hochschicken">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533403016000" ID="ID_515841398" MODIFIED="1533403026256" TEXT="Diff-Nachrichten wieder verstehen">
+<icon BUILTIN="flag-pink"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403027894" ID="ID_488294111" MODIFIED="1533403133894" TEXT="Diff-Nachricht inline generieren">
+<arrowlink COLOR="#e34459" DESTINATION="ID_294556843" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1612526412" STARTARROW="None" STARTINCLINATION="190;339;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423600722" ID="ID_311523916" MODIFIED="1533392474052" TEXT="Implementierung kl&#xe4;ren">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401384155" ID="ID_1494781570" MODIFIED="1533401881035" TEXT="#1153 define foundation for live diff updates Session -&gt; UI">
-<arrowlink COLOR="#a47f9a" DESTINATION="ID_1106740084" ENDARROW="Default" ENDINCLINATION="2561;-1079;" ID="Arrow_ID_1276188897" STARTARROW="None" STARTINCLINATION="1703;327;"/>
-<icon BUILTIN="flag-yellow"/>
-</node>
 <node CREATED="1533401971601" ID="ID_883504437" MODIFIED="1533401978732" TEXT="Service in der Session">
 <node CREATED="1533401984272" ID="ID_813978364" MODIFIED="1533401990795" TEXT="Aktivierungs-Status"/>
 <node CREATED="1533401991455" ID="ID_1252573502" MODIFIED="1533402001594" TEXT="kann sich &quot;irgendwo&quot; einklinken">
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
+<node CREATED="1533403071072" ID="ID_1097229623" MODIFIED="1533403086052" TEXT="Content-Listener">
+<arrowlink DESTINATION="ID_1724879903" ENDARROW="Default" ENDINCLINATION="17;-198;" ID="Arrow_ID_275658114" STARTARROW="None" STARTINCLINATION="-79;12;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423632949" ID="ID_1724879903" MODIFIED="1531423730233" TEXT="Content-Listener">
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423632949" ID="ID_1724879903" MODIFIED="1533403086052" TEXT="Content-Listener">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1724879903" ENDARROW="Default" ENDINCLINATION="17;-198;" ID="Arrow_ID_275658114" SOURCE="ID_1097229623" STARTARROW="None" STARTINCLINATION="-79;12;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401384155" ID="ID_1494781570" MODIFIED="1533403062858" TEXT="#1153 define foundation for live diff updates Session -&gt; UI">
+<arrowlink COLOR="#a47f9a" DESTINATION="ID_1106740084" ENDARROW="Default" ENDINCLINATION="2561;-1079;" ID="Arrow_ID_1276188897" STARTARROW="None" STARTINCLINATION="1703;327;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node CREATED="1531423640788" ID="ID_865939750" MODIFIED="1531423650015" TEXT="Ort finden"/>
 <node CREATED="1531423650339" ID="ID_583637266" MODIFIED="1531423655294" TEXT="Lebenszyklus kl&#xe4;ren"/>
 <node CREATED="1531423734880" ID="ID_1658395629" MODIFIED="1531423739643" TEXT="Verbindungen kl&#xe4;ren"/>
@@ -15941,7 +16036,7 @@
 </node>
 <node COLOR="#338800" CREATED="1532788645307" ID="ID_254810710" MODIFIED="1533325370427" TEXT="Trigger-Technik kl&#xe4;ren">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1532788681197" FOLDED="true" HGAP="336" ID="ID_32192034" MODIFIED="1533310206546" TEXT="bei GTK selber abschauen" VSHIFT="-52">
+<node CREATED="1532788681197" HGAP="336" ID="ID_32192034" MODIFIED="1533608413832" TEXT="bei GTK selber abschauen" VSHIFT="-52">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -16014,8 +16109,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1533309913133" ID="ID_1543846508" MODIFIED="1533310043556" TEXT="oder man verwendet run(Window&amp;)">
 <arrowlink COLOR="#88cecc" DESTINATION="ID_1128899175" ENDARROW="Default" ENDINCLINATION="112;-110;" ID="Arrow_ID_117418578" STARTARROW="None" STARTINCLINATION="-22;73;"/>
@@ -16113,17 +16207,16 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node CREATED="1533301523716" ID="ID_10188406" MODIFIED="1533309824191" TEXT="haben wir eine GApplication?">
 <icon BUILTIN="button_cancel"/>
-<node CREATED="1533301551049" ID="ID_229745628" MODIFIED="1533301558139" TEXT="was ist GApplication in C++?">
+<node CREATED="1533301551049" FOLDED="true" ID="ID_229745628" MODIFIED="1533608416253" TEXT="was ist GApplication in C++?">
 <node CREATED="1533309723431" ID="ID_47606560" MODIFIED="1533309729450" TEXT="Gio::Application"/>
 </node>
-<node CREATED="1533301567374" ID="ID_34255114" MODIFIED="1533301574929" TEXT="hatte Gtk::Main das?">
+<node CREATED="1533301567374" FOLDED="true" ID="ID_34255114" MODIFIED="1533608416254" TEXT="hatte Gtk::Main das?">
 <node CREATED="1533302102181" ID="ID_1070266886" MODIFIED="1533302125340">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -16134,11 +16227,10 @@
       Main <b>erbt nicht</b>&#160;von Gio::Application
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1533302523445" ID="ID_1043113531" MODIFIED="1533302527999" TEXT="init">
+<node CREATED="1533302523445" FOLDED="true" ID="ID_1043113531" MODIFIED="1533608415959" TEXT="init">
 <node CREATED="1533303553351" ID="ID_377749143" MODIFIED="1533306139169" TEXT="gtk_init">
 <arrowlink COLOR="#87a8bf" DESTINATION="ID_1850885017" ENDARROW="Default" ENDINCLINATION="-195;-45;" ID="Arrow_ID_960670945" STARTARROW="None" STARTINCLINATION="416;0;"/>
 </node>
@@ -16161,13 +16253,13 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1532788727680" FOLDED="true" HGAP="69" ID="ID_889790361" MODIFIED="1533325857935" TEXT="Gtk::Main auf aktuellem Stand" VSHIFT="12">
+<node COLOR="#338800" CREATED="1532788727680" HGAP="69" ID="ID_889790361" MODIFIED="1533608413837" TEXT="Gtk::Main auf aktuellem Stand" VSHIFT="12">
 <linktarget COLOR="#70dcb9" DESTINATION="ID_889790361" ENDARROW="Default" ENDINCLINATION="1308;0;" ID="Arrow_ID_1988524020" SOURCE="ID_1815764983" STARTARROW="Default" STARTINCLINATION="-2084;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1532788737366" ID="ID_1527913663" MODIFIED="1532788745870" TEXT="aktuellen Code bereitlegen in Eclipse">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1532788747909" FOLDED="true" ID="ID_279791197" MODIFIED="1533310221022" TEXT="wir haben kopierten Code">
+<node CREATED="1532788747909" ID="ID_279791197" MODIFIED="1533608413841" TEXT="wir haben kopierten Code">
 <icon BUILTIN="clanbomber"/>
 <node CREATED="1532788761699" ID="ID_656345742" MODIFIED="1532788789963" TEXT="in gui::ctrl::ApplicationBase"/>
 <node CREATED="1532788794126" ID="ID_552465239" MODIFIED="1532788875600" TEXT="aus Gtk::Main ctor/dtor">
@@ -16196,14 +16288,14 @@
 </html></richcontent>
 </node>
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-<node CREATED="1532789860594" ID="ID_1189172516" MODIFIED="1532791847381" TEXT="gtk_init_add()">
+<node CREATED="1532789860594" FOLDED="true" ID="ID_1189172516" MODIFIED="1533608416255" TEXT="gtk_init_add()">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1532791848873" ID="ID_1957619230" MODIFIED="1532791855539" TEXT="@deprecated seit 2010"/>
 <node CREATED="1532791856200" ID="ID_278153793" LINK="https://mail.gnome.org/archives/commits-list/2010-October/msg04543.html" MODIFIED="1532791895468" TEXT="wurde schon entfernt">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node CREATED="1532789869240" ID="ID_752154716" MODIFIED="1532789869240" TEXT="gtk_key_snooper_install()">
+<node CREATED="1532789869240" FOLDED="true" ID="ID_752154716" MODIFIED="1533608416257" TEXT="gtk_key_snooper_install()">
 <node CREATED="1532790015889" ID="ID_1497534470" MODIFIED="1532790040367" TEXT="@deprecated: 3.4">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -16219,7 +16311,7 @@
 <node CREATED="1532790702292" ID="ID_1501770920" MODIFIED="1532790728882" TEXT="GTKmm: KeySnooperSig in main.h / main.cpp">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1532790997780" ID="ID_1359312516" MODIFIED="1532791030446" TEXT="ah: KeySnooperSig::connect()">
+<node CREATED="1532790997780" FOLDED="true" ID="ID_1359312516" MODIFIED="1533608415960" TEXT="ah: KeySnooperSig::connect()">
 <icon BUILTIN="forward"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1532791032935" ID="ID_921226462" MODIFIED="1532791047721" TEXT="installiert eine GtkMainConnectionNode"/>
@@ -16274,7 +16366,7 @@
 <node CREATED="1533304499504" ID="ID_1636222563" MODIFIED="1533304499504" TEXT="Main::init_gtkmm_internals">
 <node CREATED="1532796682566" ID="ID_591452701" MODIFIED="1532796691801" TEXT="Glib, Gio und Pango initialisieren"/>
 <node CREATED="1532796692445" ID="ID_1979586408" MODIFIED="1532796706398" TEXT="Wrapper-Mechanismus f&#xfc;r Gtk+-&quot;Objekte&quot; initialisieren"/>
-<node CREATED="1532794561968" ID="ID_235365968" MODIFIED="1532796658012" TEXT="ist das zukunfts-fest?">
+<node CREATED="1532794561968" FOLDED="true" ID="ID_235365968" MODIFIED="1533608416258" TEXT="ist das zukunfts-fest?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1532796634853" ID="ID_375193574" MODIFIED="1532796646840" TEXT="in application.cc gibts die gleiche Funktion">
 <icon BUILTIN="idea"/>
@@ -16312,8 +16404,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="info"/>
 </node>
@@ -16337,7 +16428,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1532793816029" FOLDED="true" ID="ID_519518808" MODIFIED="1533310588598" TEXT="Glib::Dispatcher">
+<node CREATED="1532793816029" ID="ID_519518808" MODIFIED="1533608413842" TEXT="Glib::Dispatcher">
 <linktarget COLOR="#c1a9ad" DESTINATION="ID_519518808" ENDARROW="Default" ENDINCLINATION="70;0;" ID="Arrow_ID_985135564" SOURCE="ID_1796116534" STARTARROW="None" STARTINCLINATION="149;-223;"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1532793842721" ID="ID_1258451078" MODIFIED="1532793868919" TEXT="schon integriert in unseren UiDispatcher">
@@ -16352,7 +16443,7 @@
 <node CREATED="1533310381845" ID="ID_833159461" MODIFIED="1533310389328" TEXT="setzt laufende event-Loop voraus"/>
 </node>
 </node>
-<node CREATED="1533310412185" FOLDED="true" ID="ID_968448480" MODIFIED="1533310508061" TEXT="Aktivierungs-Signal">
+<node CREATED="1533310412185" ID="ID_968448480" MODIFIED="1533608413843" TEXT="Aktivierungs-Signal">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533310421328" ID="ID_1168151937" MODIFIED="1533310429603" TEXT="Gtk::Application macht das so"/>
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@@ -16363,7 +16454,7 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1532788656585" FOLDED="true" ID="ID_99363690" MODIFIED="1533391739771" TEXT="geeignet ansiedeln">
+<node COLOR="#338800" CREATED="1532788656585" ID="ID_99363690" MODIFIED="1533608413848" TEXT="geeignet ansiedeln">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1532794614249" ID="ID_884179844" MODIFIED="1532794617028" TEXT="Plan">
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@@ -16384,7 +16475,7 @@
 <node CREATED="1533221115139" ID="ID_1655397510" MODIFIED="1533221117607" TEXT="wer sonst?"/>
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 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533221145295" FOLDED="true" ID="ID_45639892" MODIFIED="1533391725964" TEXT="Problem: Zugang zum NotificationService">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533221145295" ID="ID_45639892" MODIFIED="1533608413850" TEXT="Problem: Zugang zum NotificationService">
 <icon BUILTIN="stop-sign"/>
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@@ -16437,7 +16528,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1533223360183" FOLDED="true" ID="ID_1309454354" MODIFIED="1533388625069" TEXT="Idee">
+<node CREATED="1533223360183" ID="ID_1309454354" MODIFIED="1533608413852" TEXT="Idee">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533223371534" ID="ID_891597430" MODIFIED="1533310719489" TEXT="UiDispatcher">
 <icon BUILTIN="stop-sign"/>
@@ -16452,7 +16543,7 @@
 <node CREATED="1533252172584" ID="ID_230437417" MODIFIED="1533252187890" TEXT="setzt zwingend voraus, da&#xdf; die Event-Loop schon l&#xe4;uft"/>
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 </node>
-<node CREATED="1533221770859" FOLDED="true" ID="ID_1962039642" MODIFIED="1533387993628" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
+<node CREATED="1533221770859" ID="ID_1962039642" MODIFIED="1533608413857" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533310637466" ID="ID_1772394299" MODIFIED="1533385333187" TEXT="wo?">
 <font NAME="SansSerif" SIZE="12"/>
@@ -16491,7 +16582,7 @@
 <node CREATED="1533311415455" ID="ID_1211339520" MODIFIED="1533311614570" TEXT="GTK-Aktivierungs-Mechanismus hat andere Gr&#xfc;nde">
 <arrowlink COLOR="#949fb4" DESTINATION="ID_1806268533" ENDARROW="Default" ENDINCLINATION="-1845;-608;" ID="Arrow_ID_1146394851" STARTARROW="None" STARTINCLINATION="-474;0;"/>
 </node>
-<node CREATED="1533311655519" ID="ID_946023766" MODIFIED="1533311676384">
+<node CREATED="1533311655519" FOLDED="true" ID="ID_946023766" MODIFIED="1533608416260">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -16602,6 +16693,23 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423892371" ID="ID_917754325" MODIFIED="1531423899603" TEXT="Dummy-Implementierung">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403103076" ID="ID_294556843" MODIFIED="1533403127590" TEXT="hart gecodetes Diff im Command erzeugen">
+<linktarget COLOR="#e34459" DESTINATION="ID_294556843" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1612526412" SOURCE="ID_488294111" STARTARROW="None" STARTINCLINATION="190;339;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403146566" ID="ID_1948086597" MODIFIED="1533403162301" TEXT="Diff-Empfang im InteractionDirector implementieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403169195" ID="ID_1916047269" MODIFIED="1533403177923" TEXT="erst mal nur Platzhalter einf&#xfc;gen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533403179257" ID="ID_1147163352" MODIFIED="1533403198500" TEXT="noch nicht via ViewLocator platzieren">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1533403199535" ID="ID_1545782665" MODIFIED="1533403208830" TEXT="sonst wird das nie was...">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="smily_bad"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -17431,7 +17539,7 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1458408878574" ID="ID_1190262572" MODIFIED="1512926191896" TEXT="Abw&#xe4;gung">
 <icon BUILTIN="info"/>
-<node CREATED="1458408895756" FOLDED="true" ID="ID_1422093195" MODIFIED="1531584014192" TEXT="polymorph">
+<node CREATED="1458408895756" ID="ID_1422093195" MODIFIED="1533608413859" TEXT="polymorph">
 <node CREATED="1458408909594" ID="ID_447360746" MODIFIED="1458409828754">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -17457,7 +17565,7 @@
 <node CREATED="1458409202946" ID="ID_162172192" MODIFIED="1458409828754" TEXT="f&#xfc;r jede Anwendungssituation eine neue Binder-Klasse"/>
 <node CREATED="1458409270353" ID="ID_114384372" MODIFIED="1458409828754" TEXT="plus f&#xfc;r jedes Anwendungs-Grundmuster eine Mutator-Implementierung"/>
 </node>
-<node CREATED="1458408904802" FOLDED="true" ID="ID_1569962545" MODIFIED="1531584014193" TEXT="generisch">
+<node CREATED="1458408904802" ID="ID_1569962545" MODIFIED="1533608413860" TEXT="generisch">
 <node CREATED="1458409289263" ID="ID_1520752432" MODIFIED="1458409828754" TEXT="konkreter Mutator wird aus Bausteinen zusammengestellt"/>
 <node CREATED="1458409313524" ID="ID_90057804" MODIFIED="1458409828754" TEXT="diese Bausteine verwenden Funktoren und Lambdas"/>
 <node CREATED="1458409343504" ID="ID_1243373098" MODIFIED="1458409828754" TEXT="Mutator-Instantiierung und Lamdas im gleichen Scope"/>
@@ -17480,7 +17588,7 @@
 <node CREATED="1458409480646" ID="ID_239846348" MODIFIED="1458409828754" TEXT="weniger Indirektion"/>
 <node CREATED="1458409499547" ID="ID_734782069" MODIFIED="1458409828755" TEXT="geringf&#xfc;gig weniger Code-bloat"/>
 <node CREATED="1458409506778" ID="ID_1696279423" MODIFIED="1458409828755" TEXT="bessere Chancen auf Inlining"/>
-<node CREATED="1458409586672" FOLDED="true" ID="ID_902822558" MODIFIED="1531584014193" TEXT="Client-Code">
+<node CREATED="1458409586672" ID="ID_902822558" MODIFIED="1533608413860" TEXT="Client-Code">
 <node CREATED="1458409608924" ID="ID_1425639317" MODIFIED="1458409828755" TEXT="kompakter"/>
 <node CREATED="1458409611484" ID="ID_1386932549" MODIFIED="1458409828755" TEXT="expliziter"/>
 <node CREATED="1458409616980" ID="ID_1067167042" MODIFIED="1458409828755" TEXT="weniger technisch"/>
@@ -17559,12 +17667,12 @@
 <node CREATED="1455843074288" ID="ID_251586851" MODIFIED="1455843077987" TEXT="SET"/>
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-<node CREATED="1455843262862" FOLDED="true" ID="ID_779223103" MODIFIED="1531584014193" TEXT="Frage: Auto-PICK">
+<node CREATED="1455843262862" ID="ID_779223103" MODIFIED="1533608413862" TEXT="Frage: Auto-PICK">
 <icon BUILTIN="help"/>
 <node CREATED="1455843317119" ID="ID_755404987" MODIFIED="1455895650565" TEXT="Ja: aber was dann mit Umordnungen">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1455843336405" FOLDED="true" ID="ID_1210482014" MODIFIED="1525124216347">
+<node CREATED="1455843336405" FOLDED="true" ID="ID_1210482014" MODIFIED="1533608416261">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17589,7 +17697,7 @@
 </html></richcontent>
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1455895670603" FOLDED="true" ID="ID_1629566976" MODIFIED="1525124215543" TEXT="out-of-order">
+<node CREATED="1455895670603" FOLDED="true" ID="ID_1629566976" MODIFIED="1533608415963" TEXT="out-of-order">
 <icon BUILTIN="yes"/>
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@@ -17681,7 +17789,7 @@
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1455913912323" ID="ID_1775410993" MODIFIED="1455913922605" TEXT="es gibt nominell nur eine Kinder-Folge"/>
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-<node CREATED="1455913938287" FOLDED="true" ID="ID_749740013" MODIFIED="1531584014194" TEXT="passenden Adapter">
+<node CREATED="1455913938287" ID="ID_749740013" MODIFIED="1533608413864" TEXT="passenden Adapter">
 <node CREATED="1455913959452" ID="ID_1132015088" MODIFIED="1455913969855" TEXT="erst beim Zugriff"/>
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@@ -18304,13 +18412,13 @@
 </node>
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 <node CREATED="1456186915112" ID="ID_1560470636" MODIFIED="1512926191948" TEXT="Gr&#xf6;&#xdf;e duch Binde-Voragang bestimmt">
-<node CREATED="1456186933998" FOLDED="true" ID="ID_528314478" MODIFIED="1531584014194" TEXT="Zahl der subMutatoren">
+<node CREATED="1456186933998" ID="ID_528314478" MODIFIED="1533608413864" TEXT="Zahl der subMutatoren">
 <node CREATED="1456187166294" ID="ID_1282142171" MODIFIED="1456187174186" TEXT="ein Vector pro Collection"/>
 <node CREATED="1456416605491" ID="ID_1722541208" MODIFIED="1456416614478" TEXT="eigentlicher Content wird durchgereicht"/>
 </node>
-<node CREATED="1456186946508" FOLDED="true" ID="ID_335779075" MODIFIED="1531584014195" TEXT="Zahl der Einzelbindungen">
+<node CREATED="1456186946508" ID="ID_335779075" MODIFIED="1533608413865" TEXT="Zahl der Einzelbindungen">
 <node CREATED="1456187264346" ID="ID_81725454" MODIFIED="1456187278539" TEXT="ein Slot pro Binding-Layer"/>
-<node CREATED="1456187279408" FOLDED="true" ID="ID_954788495" MODIFIED="1525124216347" TEXT="Attribut-Map">
+<node CREATED="1456187279408" FOLDED="true" ID="ID_954788495" MODIFIED="1533608416263" TEXT="Attribut-Map">
 <node CREATED="1456187295550" ID="ID_534521654" MODIFIED="1456187329981" TEXT="Setter und Getter"/>
 <node CREATED="1456187330641" ID="ID_1069743778" MODIFIED="1456187335684" TEXT="zwei Slots pro Attribut"/>
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@@ -18398,7 +18506,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1456424962239" FOLDED="true" ID="ID_933613304" MODIFIED="1531584014195" TEXT="einseitige Fernsteuerung">
+<node CREATED="1456424962239" ID="ID_933613304" MODIFIED="1533608413866" TEXT="einseitige Fernsteuerung">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18430,17 +18538,17 @@
 <node CREATED="1456425646332" ID="ID_897964875" MODIFIED="1456425651999" TEXT="oberfl&#xe4;chengetrieben"/>
 <node CREATED="1456425652683" ID="ID_437402611" MODIFIED="1456425656575" TEXT="zentralgesteuert"/>
 </node>
-<node CREATED="1456424295296" FOLDED="true" ID="ID_791299475" MODIFIED="1531584014195" TEXT="DOM + Attribution">
+<node CREATED="1456424295296" ID="ID_791299475" MODIFIED="1533608413867" TEXT="DOM + Attribution">
 <icon BUILTIN="idea"/>
 <node CREATED="1456424627860" ID="ID_1294496825" MODIFIED="1456424632247" TEXT="keine Alternative"/>
 <node CREATED="1456424632907" ID="ID_1566098600" MODIFIED="1456424642598" TEXT="denn genau das machen wir hier"/>
-<node CREATED="1456437181070" FOLDED="true" HGAP="23" ID="ID_1066542027" MODIFIED="1525124216347" STYLE="bubble" TEXT="Analyse" VSHIFT="44">
+<node CREATED="1456437181070" FOLDED="true" HGAP="23" ID="ID_1066542027" MODIFIED="1533608416265" STYLE="bubble" TEXT="Analyse" VSHIFT="44">
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 <icon BUILTIN="info"/>
-<node CREATED="1456424664015" FOLDED="true" ID="ID_1032924247" MODIFIED="1525124215543" TEXT="Problem: Zusatz-Kosten">
+<node CREATED="1456424664015" FOLDED="true" ID="ID_1032924247" MODIFIED="1533608415965" TEXT="Problem: Zusatz-Kosten">
 <node CREATED="1456424675173" ID="ID_1585536570" MODIFIED="1456437520768" TEXT="...f&#xfc;r das &quot;+&quot;"/>
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-<node CREATED="1456424722039" FOLDED="true" ID="ID_1926017913" MODIFIED="1525124215530" TEXT="notwendige Kosten">
+<node CREATED="1456424722039" FOLDED="true" ID="ID_1926017913" MODIFIED="1533608415647" TEXT="notwendige Kosten">
 <node CREATED="1456424725927" ID="ID_1322872728" MODIFIED="1456437520769" TEXT="denn das DOM ist rein"/>
 <node CREATED="1456424730022" ID="ID_282791744" MODIFIED="1456437520769" TEXT="hat also keinen Platz f&#xfc;r explizite Eigenschaften"/>
 <node CREATED="1456424765113" ID="ID_1716539711" MODIFIED="1456437520770">
@@ -18457,8 +18565,8 @@
 </node>
 </node>
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-<node CREATED="1456426041626" FOLDED="true" ID="ID_101262346" MODIFIED="1525124215530" TEXT="Duplikation">
+<node CREATED="1456425913664" FOLDED="true" HGAP="28" ID="ID_1929919601" MODIFIED="1533608415967" TEXT="notwendig" VSHIFT="-1">
+<node CREATED="1456426041626" FOLDED="true" ID="ID_101262346" MODIFIED="1533608415649" TEXT="Duplikation">
 <node CREATED="1456425918071" ID="ID_18884187" MODIFIED="1456437520772" TEXT="DOM-IDs am Binde-Punkt">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -18550,12 +18658,12 @@
 </html></richcontent>
 </node>
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-<node CREATED="1456428989206" FOLDED="true" HGAP="28" ID="ID_1999101531" MODIFIED="1525124215543" TEXT="Ma&#xdf;stab" VSHIFT="17">
-<node CREATED="1456429002332" FOLDED="true" ID="ID_294696563" MODIFIED="1525124215530" TEXT="Trennung">
+<node CREATED="1456428989206" FOLDED="true" HGAP="28" ID="ID_1999101531" MODIFIED="1533608415970" TEXT="Ma&#xdf;stab" VSHIFT="17">
+<node CREATED="1456429002332" FOLDED="true" ID="ID_294696563" MODIFIED="1533608415651" TEXT="Trennung">
 <node CREATED="1456429013283" ID="ID_462304497" MODIFIED="1456437520773" TEXT="abstrakt"/>
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 </node>
-<node CREATED="1456429046358" FOLDED="true" ID="ID_327619080" MODIFIED="1525124215530" TEXT="Fokussierung innerhalb">
+<node CREATED="1456429046358" FOLDED="true" ID="ID_327619080" MODIFIED="1533608415654" TEXT="Fokussierung innerhalb">
 <node CREATED="1456429106894" ID="ID_345392088" MODIFIED="1456437520774" TEXT="Belange des UI"/>
 <node CREATED="1456429110702" ID="ID_1531485619" MODIFIED="1456437520774" TEXT="Notwendigkeiten des Edit-Vorganges"/>
 <node CREATED="1456429159559" ID="ID_4036488" MODIFIED="1456437520774" TEXT="nach der inh&#xe4;renten Form suchen"/>
@@ -18928,7 +19036,7 @@
 <node CREATED="1458094334991" ID="ID_903070750" MODIFIED="1458094343401" TEXT="ohne Daten-Introspektion"/>
 </node>
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-<node CREATED="1458094510463" FOLDED="true" ID="ID_812427058" MODIFIED="1531584014196" TEXT="Spec bietet wenig Anhaltspunkte">
+<node CREATED="1458094510463" ID="ID_812427058" MODIFIED="1533608413874" TEXT="Spec bietet wenig Anhaltspunkte">
 <richcontent TYPE="NOTE"><html>
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@@ -18942,7 +19050,7 @@
 <node CREATED="1458094562800" ID="ID_184244927" MODIFIED="1458094568467" TEXT="ID-Symbol"/>
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-<node CREATED="1458094599835" FOLDED="true" HGAP="24" ID="ID_1161622136" MODIFIED="1531584014196" TEXT="Zugang zum Payload-Typ" VSHIFT="10">
+<node CREATED="1458094599835" HGAP="24" ID="ID_1161622136" MODIFIED="1533608413876" TEXT="Zugang zum Payload-Typ" VSHIFT="10">
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@@ -18969,7 +19077,7 @@
   </body>
 </html></richcontent>
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-<node CREATED="1458094716364" FOLDED="true" ID="ID_1749838430" MODIFIED="1525124216347" TEXT="eingeschr&#xe4;nkt auf Objekt-Typ">
+<node CREATED="1458094716364" FOLDED="true" ID="ID_1749838430" MODIFIED="1533608416269" TEXT="eingeschr&#xe4;nkt auf Objekt-Typ">
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@@ -19039,7 +19147,7 @@
   </body>
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 </node>
-<node CREATED="1458095217737" FOLDED="true" ID="ID_824115387" MODIFIED="1525124215543" TEXT="um das zu unterst&#xfc;tzen...">
+<node CREATED="1458095217737" FOLDED="true" ID="ID_824115387" MODIFIED="1533608415976" TEXT="um das zu unterst&#xfc;tzen...">
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@@ -19060,7 +19168,7 @@
 <node CREATED="1458095528224" ID="ID_109058224" MODIFIED="1512926191979" TEXT="falls nein...">
 <node CREATED="1458095540807" ID="ID_225712554" MODIFIED="1458095553929" TEXT="&#xfc;bernimmt der n&#xe4;chste Onion-Layer"/>
 <node CREATED="1458095554548" ID="ID_1745271000" MODIFIED="1458095566303" TEXT="scheitert am Ende die Diff-Anwendung"/>
-<node CREATED="1458095567123" FOLDED="true" ID="ID_1135449086" MODIFIED="1531584014197" TEXT="das kann nicht sein">
+<node CREATED="1458095567123" ID="ID_1135449086" MODIFIED="1533608413880" TEXT="das kann nicht sein">
 <icon BUILTIN="ksmiletris"/>
 <node CREATED="1458095599015" ID="ID_1548761670" MODIFIED="1458095611129" TEXT="denn Struktur wird per Diff aufgebaut"/>
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@@ -19238,7 +19346,7 @@
 </node>
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 <node CREATED="1457742639703" ID="ID_1065867780" MODIFIED="1457742645826" TEXT="neben der Identit&#xe4;t"/>
-<node CREATED="1457742646366" FOLDED="true" ID="ID_1533568989" MODIFIED="1531584014197" TEXT="logische Typisierung">
+<node CREATED="1457742646366" ID="ID_1533568989" MODIFIED="1533608413881" TEXT="logische Typisierung">
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@@ -19259,7 +19367,7 @@
 <node CREATED="1458177113846" ID="ID_320488998" MODIFIED="1458177953094" TEXT="stellt fest, ob das Ziel pa&#xdf;t"/>
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 <node CREATED="1458177147897" ID="ID_1632332105" MODIFIED="1458177953094" TEXT="mu&#xdf; daher in der Regel bereitgestellt werden"/>
-<node CREATED="1458177166543" FOLDED="true" ID="ID_1266232529" MODIFIED="1531584014198" TEXT="Ersatz">
+<node CREATED="1458177166543" ID="ID_1266232529" MODIFIED="1533608413881" TEXT="Ersatz">
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@@ -19290,7 +19398,7 @@
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
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-<node CREATED="1458177347622" FOLDED="true" ID="ID_1041373197" MODIFIED="1531584014198" TEXT="Ersatz">
+<node CREATED="1458177347622" ID="ID_1041373197" MODIFIED="1533608413881" TEXT="Ersatz">
 <icon BUILTIN="idea"/>
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@@ -19298,22 +19406,22 @@
 </node>
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+<node CREATED="1458176002762" ID="ID_442473703" MODIFIED="1533608413882" TEXT="selector">
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-<node CREATED="1458177642144" FOLDED="true" ID="ID_310751196" MODIFIED="1525124216347" TEXT="Ersatz">
+<node CREATED="1458177642144" FOLDED="true" ID="ID_310751196" MODIFIED="1533608416271" TEXT="Ersatz">
 <icon BUILTIN="idea"/>
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 <node CREATED="1458177652662" ID="ID_1067744704" MODIFIED="1458177953094" TEXT="es kann dann also nur ein Binding geben"/>
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 </node>
 </node>
-<node CREATED="1458176008025" FOLDED="true" ID="ID_1099350141" MODIFIED="1531584014199" TEXT="setter">
+<node CREATED="1458176008025" ID="ID_1099350141" MODIFIED="1533608413883" TEXT="setter">
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-<node CREATED="1458177735635" FOLDED="true" ID="ID_197038069" MODIFIED="1525124216347" TEXT="Ersatz">
+<node CREATED="1458177735635" FOLDED="true" ID="ID_197038069" MODIFIED="1533608416273" TEXT="Ersatz">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1458177738499" ID="ID_1474971428" MODIFIED="1458177953095" TEXT="keiner"/>
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@@ -19321,11 +19429,11 @@
 <node CREATED="1458177803730" ID="ID_674080114" MODIFIED="1458177953095" TEXT="auch nicht n&#xf6;tig bei immutable values"/>
 </node>
 </node>
-<node CREATED="1458176018087" FOLDED="true" ID="ID_1978664300" MODIFIED="1531584014199" TEXT="mutator">
+<node CREATED="1458176018087" ID="ID_1978664300" MODIFIED="1533608413884" TEXT="mutator">
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-<node CREATED="1458177857939" FOLDED="true" ID="ID_233644864" MODIFIED="1525124216347" TEXT="Ersatz">
+<node CREATED="1458177857939" FOLDED="true" ID="ID_233644864" MODIFIED="1533608416274" TEXT="Ersatz">
 <icon BUILTIN="button_cancel"/>
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@@ -19340,12 +19448,12 @@
 <node CREATED="1458176093958" ID="ID_801042454" MODIFIED="1512926191999" TEXT="Argument: &quot;dann halt nicht&quot;">
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-<node CREATED="1458176252336" FOLDED="true" ID="ID_1554344013" MODIFIED="1531584014200" TEXT="ich bin, also bin ich konsistent">
+<node CREATED="1458176252336" ID="ID_1554344013" MODIFIED="1533608413885" TEXT="ich bin, also bin ich konsistent">
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 <node CREATED="1458176297282" ID="ID_336107495" MODIFIED="1458176305981" TEXT="alles wird per diff erzeugt"/>
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 </node>
-<node CREATED="1458176787953" FOLDED="true" ID="ID_1610561572" MODIFIED="1531584014200" TEXT="sinnvoll gew&#xe4;hlt">
+<node CREATED="1458176787953" ID="ID_1610561572" MODIFIED="1533608413887" TEXT="sinnvoll gew&#xe4;hlt">
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 <richcontent TYPE="NODE"><html>
@@ -19362,7 +19470,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1458176911161" FOLDED="true" ID="ID_1565618197" MODIFIED="1525124216348">
+<node CREATED="1458176911161" FOLDED="true" ID="ID_1565618197" MODIFIED="1533608416275">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -19471,7 +19579,7 @@
 </node>
 </node>
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-<node CREATED="1460762015777" FOLDED="true" ID="ID_59179895" MODIFIED="1531584014201">
+<node CREATED="1460762015777" ID="ID_59179895" MODIFIED="1533608413888">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -19486,7 +19594,7 @@
 <node CREATED="1460762025520" ID="ID_955853878" MODIFIED="1460762032675" TEXT="zwischen dem gesendeten Diff"/>
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 </node>
-<node CREATED="1460762065371" FOLDED="true" ID="ID_698989532" MODIFIED="1531584014201" TEXT="brauche wohl &quot;Introspection light&quot;">
+<node CREATED="1460762065371" ID="ID_698989532" MODIFIED="1533608413889" TEXT="brauche wohl &quot;Introspection light&quot;">
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1460762101046" ID="ID_1593562435" MODIFIED="1460762111448" TEXT="damit ich einen Sub-Scope vorbereiten kann"/>
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@@ -19721,7 +19829,7 @@
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-<node CREATED="1461889012008" FOLDED="true" ID="ID_1889833023" MODIFIED="1531584014201" TEXT="Einf&#xfc;gen eines Attributes">
+<node CREATED="1461889012008" ID="ID_1889833023" MODIFIED="1533608413889" TEXT="Einf&#xfc;gen eines Attributes">
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@@ -19733,7 +19841,7 @@
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-<node CREATED="1461889253087" FOLDED="true" ID="ID_1128320234" MODIFIED="1531584014202" TEXT="das hei&#xdf;t...">
+<node CREATED="1461889253087" ID="ID_1128320234" MODIFIED="1533608413908" TEXT="das hei&#xdf;t...">
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@@ -19760,7 +19868,7 @@
 </html></richcontent>
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-<node CREATED="1461889470866" FOLDED="true" ID="ID_404525574" MODIFIED="1525124216348" TEXT="operational">
+<node CREATED="1461889470866" FOLDED="true" ID="ID_404525574" MODIFIED="1533608416277" TEXT="operational">
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 <richcontent TYPE="NOTE"><html>
@@ -19783,7 +19891,7 @@
 </node>
 </node>
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+<node CREATED="1461889656194" HGAP="73" ID="ID_781150142" MODIFIED="1533608413909" TEXT="ist das &#xfc;berhaupt m&#xf6;glich" VSHIFT="23">
 <linktarget COLOR="#be5b66" DESTINATION="ID_781150142" ENDARROW="Default" ENDINCLINATION="28;-28;" ID="Arrow_ID_30022331" SOURCE="ID_1489246908" STARTARROW="None" STARTINCLINATION="13;20;"/>
 <icon BUILTIN="help"/>
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@@ -19838,7 +19946,7 @@
 </html></richcontent>
 <linktarget COLOR="#807bce" DESTINATION="ID_1808149320" ENDARROW="Default" ENDINCLINATION="671;0;" ID="Arrow_ID_1677374853" SOURCE="ID_1767038604" STARTARROW="Default" STARTINCLINATION="994;0;"/>
 </node>
-<node CREATED="1461890240148" FOLDED="true" ID="ID_1409253452" MODIFIED="1525124216348" TEXT="Schutzmechanismen">
+<node CREATED="1461890240148" FOLDED="true" ID="ID_1409253452" MODIFIED="1533608416278" TEXT="Schutzmechanismen">
 <node CREATED="1461890266377" ID="ID_513997188" MODIFIED="1461890283701">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -19872,7 +19980,7 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1461892285965" FOLDED="true" ID="ID_440312526" MODIFIED="1531584014203" TEXT="mandatory ">
+<node CREATED="1461892285965" ID="ID_440312526" MODIFIED="1533608413911" TEXT="mandatory ">
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 <richcontent TYPE="NOTE"><html>
@@ -19891,8 +19999,8 @@
 </node>
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-<node CREATED="1461892444727" FOLDED="true" ID="ID_1828810203" MODIFIED="1531584014204" TEXT="default">
-<node CREATED="1461892490881" FOLDED="true" ID="ID_577669206" MODIFIED="1525124216348" TEXT="es gibt zwei Grade">
+<node CREATED="1461892444727" ID="ID_1828810203" MODIFIED="1533608413912" TEXT="default">
+<node CREATED="1461892490881" FOLDED="true" ID="ID_577669206" MODIFIED="1533608416279" TEXT="es gibt zwei Grade">
 <node CREATED="1461892496377" ID="ID_1216553390" MODIFIED="1461892579692" TEXT="minder">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -19926,17 +20034,17 @@
 </node>
 </node>
 <node CREATED="1461966988471" ID="ID_751317533" MODIFIED="1512926192022" TEXT="pr&#xfc;fen vs ignorieren">
-<node CREATED="1461967012164" FOLDED="true" ID="ID_1380142317" MODIFIED="1531584014204" TEXT="pr&#xfc;fen">
+<node CREATED="1461967012164" ID="ID_1380142317" MODIFIED="1533608413912" TEXT="pr&#xfc;fen">
 <icon BUILTIN="forward"/>
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 </node>
-<node CREATED="1461967044480" FOLDED="true" ID="ID_810828038" MODIFIED="1531584014204" TEXT="ignorieren">
+<node CREATED="1461967044480" ID="ID_810828038" MODIFIED="1533608413913" TEXT="ignorieren">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1461967051095" ID="ID_328050724" MODIFIED="1461967056946" TEXT="wendet an, was anwendbar ist"/>
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-<node COLOR="#990000" CREATED="1461967003141" FOLDED="true" HGAP="29" ID="ID_1805886948" MODIFIED="1531584014205" TEXT="Design-Entscheidung" VSHIFT="19">
+<node COLOR="#990000" CREATED="1461967003141" HGAP="29" ID="ID_1805886948" MODIFIED="1533608413916" TEXT="Design-Entscheidung" VSHIFT="19">
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@@ -19996,7 +20104,7 @@
 </node>
 <node CREATED="1461967364397" ID="ID_381561226" MODIFIED="1461967379991" TEXT="Pr&#xfc;fung erfordert eine Flag f&#xfc;r jedes bekannte Feld"/>
 <node CREATED="1461967384579" ID="ID_1805227176" MODIFIED="1461967401644" TEXT="diese Flag wird gesetzt, sobald der Diff das Feld &quot;ber&#xfc;hrt&quot;"/>
-<node CREATED="1461967428061" FOLDED="true" ID="ID_766802419" MODIFIED="1525124216348" TEXT="au&#xdf;erdem gibt es noch zwei triviale Basis-Checks">
+<node CREATED="1461967428061" FOLDED="true" ID="ID_766802419" MODIFIED="1533608416280" TEXT="au&#xdf;erdem gibt es noch zwei triviale Basis-Checks">
 <node CREATED="1461967451610" ID="ID_798276463" MODIFIED="1461967462700" TEXT="ist bekannter Attributsname"/>
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 <richcontent TYPE="NODE"><html>
@@ -20012,7 +20120,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1475506680125" FOLDED="true" HGAP="58" ID="ID_1865970661" MODIFIED="1531584014206" TEXT="Variante" VSHIFT="13">
+<node CREATED="1475506680125" HGAP="58" ID="ID_1865970661" MODIFIED="1533608413932" TEXT="Variante" VSHIFT="13">
 <node CREATED="1475506691595" ID="ID_69735021" MODIFIED="1475506704861" TEXT="emptySrc -&gt; hasSrc"/>
 <node CREATED="1475506705641" ID="ID_409132685" MODIFIED="1475506735169" TEXT="und den nicht implementierbaren Fall tolerieren"/>
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@@ -20043,7 +20151,7 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1455927425726" FOLDED="true" ID="ID_1774195026" MODIFIED="1531584014206" TEXT="hasSrc">
+<node CREATED="1455927425726" ID="ID_1774195026" MODIFIED="1533608413934" TEXT="hasSrc">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
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@@ -20067,7 +20175,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1455927425726" FOLDED="true" ID="ID_950488526" MODIFIED="1531584014207" TEXT="skipSrc">
+<node CREATED="1455927425726" ID="ID_950488526" MODIFIED="1533608413934" TEXT="skipSrc">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="closed"/>
 <node CREATED="1464212421708" ID="ID_260959353" MODIFIED="1464212429644" TEXT="prohibited, raise error"/>
@@ -20078,11 +20186,11 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1455927396505" FOLDED="true" ID="ID_1033919055" MODIFIED="1531584014207" TEXT="matchSrc">
+<node CREATED="1455927396505" ID="ID_1033919055" MODIFIED="1533608413935" TEXT="matchSrc">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1455928268589" ID="ID_954747330" MODIFIED="1461964779839" TEXT="ID comparison to field known by name"/>
 </node>
-<node CREATED="1455982947867" FOLDED="true" ID="ID_348226285" MODIFIED="1531584014207" TEXT="injectNew">
+<node CREATED="1455982947867" ID="ID_348226285" MODIFIED="1533608413935" TEXT="injectNew">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1455982969073" ID="ID_1599013380" MODIFIED="1463675987940" TEXT="set known field&apos;s contents"/>
 <node CREATED="1457047512175" ID="ID_45133594" MODIFIED="1464212464658" TEXT="mandatory fields raise error">
@@ -20090,14 +20198,14 @@
 </node>
 <node CREATED="1461964818054" ID="ID_1444647202" MODIFIED="1461964825281" TEXT="unknown fields raise error"/>
 </node>
-<node CREATED="1455927413191" FOLDED="true" ID="ID_131020445" MODIFIED="1531584014207" TEXT="acceptSrc">
+<node CREATED="1455927413191" ID="ID_131020445" MODIFIED="1533608413935" TEXT="acceptSrc">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1464212476461" ID="ID_503509206" MODIFIED="1464212481606" TEXT="NOP"/>
 <node CREATED="1461964863217" ID="ID_274118585" MODIFIED="1464212474879" TEXT="mark known field as mentioned">
 <icon BUILTIN="button_cancel"/>
 </node>
 </node>
-<node CREATED="1455928166683" FOLDED="true" ID="ID_1715452226" MODIFIED="1531584014208" TEXT="accept_until">
+<node CREATED="1455928166683" ID="ID_1715452226" MODIFIED="1533608413938" TEXT="accept_until">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1455928383765" ID="ID_1566496401" MODIFIED="1461965340133" TEXT="nicht implementierbar">
@@ -20108,7 +20216,7 @@
 <arrowlink COLOR="#592379" DESTINATION="ID_693317592" ENDARROW="Default" ENDINCLINATION="577;0;" ID="Arrow_ID_1115282938" STARTARROW="Default" STARTINCLINATION="1205;231;"/>
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 </node>
-<node CREATED="1463675830732" FOLDED="true" ID="ID_1893171223" MODIFIED="1525124216348">
+<node CREATED="1463675830732" FOLDED="true" ID="ID_1893171223" MODIFIED="1533608416282">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -20143,19 +20251,19 @@
 </node>
 </node>
 </node>
-<node CREATED="1455927413191" FOLDED="true" ID="ID_216877268" MODIFIED="1531584014208" TEXT="findSrc">
+<node CREATED="1455927413191" ID="ID_216877268" MODIFIED="1533608413939" TEXT="findSrc">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="closed"/>
 <node CREATED="1461946965569" ID="ID_229931358" MODIFIED="1461963646230" TEXT="Umordnen wird nicht unterst&#xfc;tzt"/>
 <node CREATED="1461963648481" ID="ID_1893776707" MODIFIED="1461963654996" TEXT="l&#xf6;st einen Logik-Fehler aus"/>
 </node>
-<node CREATED="1455928184504" FOLDED="true" ID="ID_850800360" MODIFIED="1531584014209" TEXT="assignElm">
+<node CREATED="1455928184504" ID="ID_850800360" MODIFIED="1533608413940" TEXT="assignElm">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1461963697714" ID="ID_1619863394" MODIFIED="1461963707499" TEXT="Setter aufrufen"/>
 <node CREATED="1461963686556" ID="ID_662132890" MODIFIED="1461963697214" TEXT="namentlich bekanntes Feld"/>
 <node CREATED="1461963708449" ID="ID_1854747377" MODIFIED="1461963718804" TEXT="nicht bekannte Felder l&#xf6;sen Fehler aus"/>
 </node>
-<node CREATED="1455928189695" FOLDED="true" ID="ID_1575249106" MODIFIED="1531584014209" TEXT="mutateChild">
+<node CREATED="1455928189695" ID="ID_1575249106" MODIFIED="1533608413941" TEXT="mutateChild">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
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 <richcontent TYPE="NODE"><html>
@@ -20172,7 +20280,7 @@
 <node CREATED="1461963748604" ID="ID_465316362" MODIFIED="1461963753895" TEXT="namentlich bekanntes Feld"/>
 <node CREATED="1461963777440" ID="ID_207528376" MODIFIED="1461963787443" TEXT="aber nicht Setter, sondern Mutator bauen"/>
 </node>
-<node CREATED="1464113688645" FOLDED="true" ID="ID_1227423402" MODIFIED="1531584014209" STYLE="fork" TEXT="completeScope">
+<node CREATED="1464113688645" ID="ID_1227423402" MODIFIED="1533608413942" STYLE="fork" TEXT="completeScope">
 <edge COLOR="#808080" STYLE="bezier" WIDTH="thin"/>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1464113727192" ID="ID_656884609" MODIFIED="1464113954773" TEXT="hier NOP implementiert"/>
@@ -20189,7 +20297,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1455928193863" FOLDED="true" ID="ID_579601999" MODIFIED="1531584014210" TEXT="CTOR">
+<node CREATED="1455928193863" ID="ID_579601999" MODIFIED="1533608413943" TEXT="CTOR">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
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 <node COLOR="#e5500c" CREATED="1461946693701" ID="ID_583693798" MODIFIED="1461965425322" STYLE="fork" TEXT="meta-Operation">
@@ -20212,25 +20320,25 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1458175991795" FOLDED="true" ID="ID_1544297658" MODIFIED="1531584014210" TEXT="fest eingebaut...">
+<node CREATED="1458175991795" ID="ID_1544297658" MODIFIED="1533608413943" TEXT="fest eingebaut...">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<node CREATED="1458175942866" FOLDED="true" ID="ID_321386709" MODIFIED="1525124216348" TEXT="match">
+<node CREATED="1458175942866" FOLDED="true" ID="ID_321386709" MODIFIED="1533608416283" TEXT="match">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1458177113846" ID="ID_885225658" MODIFIED="1461966728693" TEXT="pr&#xfc;ft ID-Name der Spec gegen Feldname des Zieles"/>
 </node>
-<node CREATED="1458176002762" FOLDED="true" ID="ID_233019425" MODIFIED="1525124216348" TEXT="selector">
+<node CREATED="1458176002762" FOLDED="true" ID="ID_233019425" MODIFIED="1533608416284" TEXT="selector">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1458177605869" ID="ID_1275056489" MODIFIED="1461966119517" TEXT="ein default-Selector ist automatisch stets konfiguriert"/>
 <node CREATED="1461966120082" ID="ID_92075200" MODIFIED="1461966665670" TEXT="default ist Pr&#xfc;fen, ob die Spec ein Attribut bezeichnet"/>
 </node>
 </node>
-<node CREATED="1458175991795" FOLDED="true" ID="ID_998867093" MODIFIED="1531584014211" TEXT="optional...">
+<node CREATED="1458175991795" ID="ID_998867093" MODIFIED="1533608413946" TEXT="optional...">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<node CREATED="1458176008025" FOLDED="true" ID="ID_384595680" MODIFIED="1525124216348" TEXT="setter">
+<node CREATED="1458176008025" FOLDED="true" ID="ID_384595680" MODIFIED="1533608416285" TEXT="setter">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1458177697657" ID="ID_1292886690" MODIFIED="1458177953095" TEXT="erlaubt Zuweisung"/>
 <node CREATED="1458177712798" ID="ID_1904681311" MODIFIED="1458177953095" TEXT="setzt Auswahl per match voraus"/>
-<node CREATED="1458177735635" FOLDED="true" ID="ID_88342940" MODIFIED="1525124215544" TEXT="Ersatz">
+<node CREATED="1458177735635" FOLDED="true" ID="ID_88342940" MODIFIED="1533608415979" TEXT="Ersatz">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1458177738499" ID="ID_738570524" MODIFIED="1458177953095" TEXT="keiner"/>
 <node CREATED="1458177741155" ID="ID_504602301" MODIFIED="1458177953095" TEXT="dann gibt&apos;s eben keine Zuweisung"/>
@@ -20238,18 +20346,18 @@
 <node CREATED="1458177803730" ID="ID_1570261235" MODIFIED="1458177953095" TEXT="auch nicht n&#xf6;tig bei immutable values"/>
 </node>
 </node>
-<node CREATED="1458176018087" FOLDED="true" ID="ID_280816523" MODIFIED="1525124216349" TEXT="mutator">
+<node CREATED="1458176018087" FOLDED="true" ID="ID_280816523" MODIFIED="1533608416287" TEXT="mutator">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1458177821712" ID="ID_850096330" MODIFIED="1458177953095" TEXT="baut einen sub-Mutator f&#xfc;r einen nested scope"/>
 <node CREATED="1458177851988" ID="ID_835071729" MODIFIED="1458177953095" TEXT="setzt Auswahl per match voraus"/>
-<node CREATED="1458177857939" FOLDED="true" ID="ID_1231660130" MODIFIED="1525124215544" TEXT="Ersatz">
+<node CREATED="1458177857939" FOLDED="true" ID="ID_1231660130" MODIFIED="1533608415981" TEXT="Ersatz">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1458177861162" ID="ID_1234972537" MODIFIED="1458177953095" TEXT="keiner"/>
 <node CREATED="1458177863506" ID="ID_668640033" MODIFIED="1463690716478" TEXT="dann gibts eben keine Behandlung von nested scopes"/>
 <node CREATED="1458177874760" ID="ID_98241568" MODIFIED="1458177953095" TEXT="auch nicht n&#xf6;tig bei primitive values"/>
 </node>
 </node>
-<node CREATED="1463687547746" FOLDED="true" ID="ID_241762171" MODIFIED="1525124216349" TEXT="defaulter">
+<node CREATED="1463687547746" FOLDED="true" ID="ID_241762171" MODIFIED="1533608416289" TEXT="defaulter">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1463687553569" ID="ID_695577132" MODIFIED="1463687602782" TEXT="veranla&#xdf;t R&#xfc;ckkehr zum default-Zustand"/>
@@ -20270,21 +20378,21 @@
 </html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1463687649812" FOLDED="true" ID="ID_450096384" MODIFIED="1525124215544" TEXT="Ersatz">
+<node CREATED="1463687649812" FOLDED="true" ID="ID_450096384" MODIFIED="1533608415983" TEXT="Ersatz">
 <icon BUILTIN="button_cancel"/>
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 <node CREATED="1463687672649" ID="ID_244442064" MODIFIED="1463687689779" TEXT="dann kann eben nur gebunden werden"/>
 <node CREATED="1463687865175" ID="ID_1290398590" MODIFIED="1463687869987" TEXT="normalerweise verzichtbar"/>
 </node>
 </node>
-<node CREATED="1458175960615" FOLDED="true" ID="ID_806805692" MODIFIED="1525124216349" TEXT="ctor">
+<node CREATED="1458175960615" FOLDED="true" ID="ID_806805692" MODIFIED="1533608416291" TEXT="ctor">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1461966391478" ID="ID_110542982" MODIFIED="1461966404134" TEXT="wird dem Setter vorgeschaltet"/>
 <node CREATED="1458177315803" ID="ID_1572942300" MODIFIED="1458177953094" TEXT="konstruiert aus der Spec ein neues Element"/>
 <node CREATED="1461966815950" ID="ID_156023396" MODIFIED="1461966831208" TEXT="notwendig bei Attribut-Werten, die tats&#xe4;chlich Objekte sind"/>
 <node CREATED="1458177335632" ID="ID_1991494041" MODIFIED="1458177953094" TEXT="mu&#xdf; typischerweise die Interna des Zieles kennen"/>
-<node CREATED="1458177347622" FOLDED="true" ID="ID_1000370922" MODIFIED="1525124215544" TEXT="Ersatz">
+<node CREATED="1458177347622" FOLDED="true" ID="ID_1000370922" MODIFIED="1533608415984" TEXT="Ersatz">
 <icon BUILTIN="idea"/>
 <node CREATED="1458177489444" ID="ID_1463500618" MODIFIED="1461966901007">
 <richcontent TYPE="NODE"><html>
@@ -20337,10 +20445,10 @@
 <node CREATED="1458178113697" HGAP="61" ID="ID_38103760" MODIFIED="1525124215185" TEXT="Design-Schlu&#xdf;folgerungen" VSHIFT="48">
 <node CREATED="1463687362843" HGAP="116" ID="ID_775516687" MODIFIED="1512926192048" TEXT="Eingrenzung" VSHIFT="-28">
 <node CREATED="1463687373889" ID="ID_155516876" MODIFIED="1512926192049" TEXT="Art von Attributen">
-<node CREATED="1463687402462" FOLDED="true" ID="ID_1119981147" MODIFIED="1531584014211" TEXT="Objekt-Feld">
+<node CREATED="1463687402462" ID="ID_1119981147" MODIFIED="1533608413953" TEXT="Objekt-Feld">
 <icon BUILTIN="forward"/>
 <node CREATED="1463689795357" ID="ID_1774256004" MODIFIED="1463689801592" TEXT="kann nur zugewiesen werden"/>
-<node CREATED="1463689912853" FOLDED="true" ID="ID_592726515" MODIFIED="1525124216349">
+<node CREATED="1463689912853" FOLDED="true" ID="ID_592726515" MODIFIED="1533608416292">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -20389,22 +20497,22 @@
 </node>
 </node>
 </node>
-<node CREATED="1463687408597" FOLDED="true" ID="ID_783243290" MODIFIED="1531584014212" TEXT="optional Property">
+<node CREATED="1463687408597" ID="ID_783243290" MODIFIED="1533608413954" TEXT="optional Property">
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1463688083594" ID="ID_1885891636" MODIFIED="1463688087910" TEXT="fragw&#xfc;rdiger Nutzen"/>
 <node CREATED="1463688088457" ID="ID_1722180442" MODIFIED="1463688100116" TEXT="mutet &quot;theoretisch&quot; an"/>
-<node CREATED="1463688147802" FOLDED="true" ID="ID_1259353240" MODIFIED="1525124216349" TEXT="Alternative">
+<node CREATED="1463688147802" FOLDED="true" ID="ID_1259353240" MODIFIED="1533608416294" TEXT="Alternative">
 <node CREATED="1463688157472" ID="ID_1130562584" MODIFIED="1463688173746" TEXT="auf &quot;mindere defaults&quot; setzen"/>
 <node CREATED="1463688215752" ID="ID_1340272500" MODIFIED="1463688230896" TEXT="kann man einfach mitlaufen lassen"/>
 <node CREATED="1463688184269" ID="ID_1652024004" MODIFIED="1463688193863" TEXT="immer m&#xf6;gliche Degradierung des Konzepts"/>
-<node CREATED="1463688232550" FOLDED="true" ID="ID_1079102386" MODIFIED="1525124215544" TEXT="fehlende Funktionalit&#xe4;t ersetzbar">
+<node CREATED="1463688232550" FOLDED="true" ID="ID_1079102386" MODIFIED="1533608415985" TEXT="fehlende Funktionalit&#xe4;t ersetzbar">
 <icon BUILTIN="idea"/>
 <node CREATED="1463688247980" ID="ID_720310622" MODIFIED="1463688253639" TEXT="durch komplettes Neukonstruieren"/>
 <node CREATED="1463688254251" ID="ID_1166606306" MODIFIED="1463688262902" TEXT="durch eine explizite Reset-Methode"/>
 </node>
 </node>
 </node>
-<node CREATED="1463687451791" FOLDED="true" ID="ID_682582613" MODIFIED="1531584014212" TEXT="Attribut-Map">
+<node CREATED="1463687451791" ID="ID_682582613" MODIFIED="1533608413956" TEXT="Attribut-Map">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1463687461925" ID="ID_39763189" MODIFIED="1463687496231" TEXT="hier ausgeschlossen">
 <icon BUILTIN="yes"/>
@@ -20417,9 +20525,9 @@
 </node>
 <node CREATED="1463691267608" ID="ID_1554269824" MODIFIED="1512926192052" TEXT="Typisierung">
 <node CREATED="1463691273431" ID="ID_1711015726" MODIFIED="1463691276947" TEXT="pro Attribut"/>
-<node CREATED="1463691277726" FOLDED="true" ID="ID_716698874" MODIFIED="1531584014213" TEXT="implizit">
+<node CREATED="1463691277726" ID="ID_716698874" MODIFIED="1533608413957" TEXT="implizit">
 <node CREATED="1463691290845" ID="ID_1981578828" MODIFIED="1464226408020" TEXT="das Setter-lambda nimmt einen Wert"/>
-<node CREATED="1464226412567" FOLDED="true" ID="ID_1195950141" MODIFIED="1525124216349" TEXT="der Wert-Typ mu&#xdf; einer der GenNode-Payload-Typen sein">
+<node CREATED="1464226412567" FOLDED="true" ID="ID_1195950141" MODIFIED="1533608416295" TEXT="der Wert-Typ mu&#xdf; einer der GenNode-Payload-Typen sein">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1464227158027" ID="ID_262712037" MODIFIED="1464227176058" TEXT="TODO: dies zur compile-Zeit pr&#xfc;fen">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -20488,7 +20596,7 @@
 <node CREATED="1463691807824" ID="ID_175488317" MODIFIED="1463691814860" TEXT="keine Mischformen">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1463692054415" FOLDED="true" ID="ID_1755055624" MODIFIED="1531584014213">
+<node CREATED="1463692054415" ID="ID_1755055624" MODIFIED="1533608413958">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -20503,14 +20611,14 @@
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1463692519993" ID="ID_1177616097" MODIFIED="1463692550512" TEXT="Diff handelt ohnehin nur von ver&#xe4;nderbaren Dingen"/>
-<node CREATED="1463692663853" FOLDED="true" ID="ID_953408463" MODIFIED="1525124216349" TEXT="Aber: wie &#xe4;ndert man die L&#xe4;nge eins Clips im UI?">
+<node CREATED="1463692663853" FOLDED="true" ID="ID_953408463" MODIFIED="1533608416296" TEXT="Aber: wie &#xe4;ndert man die L&#xe4;nge eins Clips im UI?">
 <node CREATED="1463695438538" ID="ID_744412186" MODIFIED="1463695450620" TEXT="indem man sich auf ein Pr&#xe4;sentations-Grid bezieht"/>
 <node CREATED="1463695454504" ID="ID_945765975" MODIFIED="1463695469602" TEXT="und folglich nur Grid-Punkt-Koordinaten &#xe4;ndert"/>
 <node CREATED="1463695472134" ID="ID_852324151" MODIFIED="1463695494714" TEXT="die eigentlichen Time-Entit&#xe4;ten leben in der Session, nicht im UI">
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1463695573392" FOLDED="true" ID="ID_1066626880" MODIFIED="1525124216349" TEXT="im &#xdc;brigen: Problem des client-Codes">
+<node CREATED="1463695573392" FOLDED="true" ID="ID_1066626880" MODIFIED="1533608416298" TEXT="im &#xdc;brigen: Problem des client-Codes">
 <node CREATED="1463695588814" ID="ID_1661716485" MODIFIED="1463695605096" TEXT="man kann einen time::Mutator erzeugen"/>
 <node CREATED="1463695605708" ID="ID_480704465" MODIFIED="1463695620401" TEXT="es gibt vorgefertigte EmbeddedMutators">
 <icon BUILTIN="idea"/>
@@ -20530,7 +20638,7 @@
 <node CREATED="1463695640231" ID="ID_176647136" MODIFIED="1463695645090" TEXT="und ist somit nicht unser Problem"/>
 </node>
 </node>
-<node CREATED="1463849505993" FOLDED="true" HGAP="42" ID="ID_493843802" MODIFIED="1531584014215" VSHIFT="25">
+<node CREATED="1463849505993" HGAP="42" ID="ID_493843802" MODIFIED="1533608413963" VSHIFT="25">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -20542,7 +20650,7 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1463849536789" FOLDED="true" ID="ID_864537854" MODIFIED="1525124216349" TEXT="ich m&#xf6;chte sie unterst&#xfc;tzen">
+<node CREATED="1463849536789" FOLDED="true" ID="ID_864537854" MODIFIED="1533608416299" TEXT="ich m&#xf6;chte sie unterst&#xfc;tzen">
 <node CREATED="1463849545196" ID="ID_1187170275" MODIFIED="1463849547316" TEXT="warum">
 <icon BUILTIN="help"/>
 </node>
@@ -20589,7 +20697,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1463849986345" FOLDED="true" ID="ID_1305704801" MODIFIED="1525124216349" TEXT="genauer...">
+<node CREATED="1463849986345" FOLDED="true" ID="ID_1305704801" MODIFIED="1533608416301" TEXT="genauer...">
 <node CREATED="1463850017285" ID="ID_656883117" MODIFIED="1463850033879" TEXT="wenn ein feld zwar gebunden ist"/>
 <node CREATED="1463850034699" ID="ID_1531134347" MODIFIED="1463850053756" TEXT="aber bisher keinen Wert bekommen hat"/>
 <node CREATED="1463850060359" ID="ID_1083372309" MODIFIED="1463850081800" TEXT="dann darf der Diff es auch nicht per pick auff&#xfc;hren"/>
@@ -20610,7 +20718,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1463850138853" FOLDED="true" ID="ID_1262990387" MODIFIED="1525124216350" TEXT="also ist das Grundproblem">
+<node CREATED="1463850138853" FOLDED="true" ID="ID_1262990387" MODIFIED="1533608416302" TEXT="also ist das Grundproblem">
 <icon BUILTIN="idea"/>
 <node CREATED="1463850144180" ID="ID_103581818" MODIFIED="1463850157454" TEXT="da&#xdf; der TreeMutator global stateless ist"/>
 <node CREATED="1463850163257" ID="ID_1219321798" MODIFIED="1463850171716" TEXT="denn er wird immer wieder neu konstruiert"/>
@@ -20628,13 +20736,13 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1463934907474" FOLDED="true" ID="ID_761652333" MODIFIED="1525124216350" TEXT="Auswege">
-<node CREATED="1463934969522" FOLDED="true" ID="ID_960243774" MODIFIED="1525124215544" TEXT="keine optional fields">
+<node CREATED="1463934907474" FOLDED="true" ID="ID_761652333" MODIFIED="1533608416304" TEXT="Auswege">
+<node CREATED="1463934969522" FOLDED="true" ID="ID_960243774" MODIFIED="1533608415986" TEXT="keine optional fields">
 <node COLOR="#a0345c" CREATED="1463937048979" ID="ID_861548194" MODIFIED="1463937120794" TEXT="widerspricht den Anforderungen">
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node CREATED="1463935105351" FOLDED="true" ID="ID_1357485921" MODIFIED="1525124215544" TEXT="Protokoll-Auflagen">
+<node CREATED="1463935105351" FOLDED="true" ID="ID_1357485921" MODIFIED="1533608415988" TEXT="Protokoll-Auflagen">
 <node CREATED="1463935116670" ID="ID_1375491306" MODIFIED="1463935125304" TEXT="nach dem ersten Durchgang mu&#xdf; alles gebunden sein"/>
 <node CREATED="1463935126461" ID="ID_774412987" MODIFIED="1463935247552" TEXT="wenn ungebundene optionals, stets Abschlie&#xdf;en mit &quot;after END&quot;"/>
 <node COLOR="#a0345c" CREATED="1463937146214" ID="ID_1154054760" MODIFIED="1463937452255" TEXT="attraktiv, aber unehrlich">
@@ -20687,7 +20795,7 @@
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node CREATED="1463934995110" FOLDED="true" ID="ID_1084188576" MODIFIED="1525124215544" TEXT="dem Mutator sagen, was optional ist">
+<node CREATED="1463934995110" FOLDED="true" ID="ID_1084188576" MODIFIED="1533608415990" TEXT="dem Mutator sagen, was optional ist">
 <node CREATED="1463935368308" ID="ID_1008223435" MODIFIED="1463935375919" TEXT="was grunds&#xe4;tzlich optional sein kann"/>
 <node CREATED="1463935377123" ID="ID_970486772" MODIFIED="1463935387005" TEXT="was aktuell nicht gebunden ist"/>
 <node COLOR="#a0345c" CREATED="1463937178689" ID="ID_1161021042" MODIFIED="1463937550363" TEXT="Over-Engineering / L&#xf6;sung eines nicht vorhandenen Problems">
@@ -20732,9 +20840,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1463937883299" FOLDED="true" HGAP="85" ID="ID_271104970" MODIFIED="1531584014215" TEXT="Konsequenzen" VSHIFT="26">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1463937883299" HGAP="85" ID="ID_271104970" MODIFIED="1533608413968" TEXT="Konsequenzen" VSHIFT="26">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1463937922318" FOLDED="true" ID="ID_74130402" MODIFIED="1525124216350" TEXT="isEmpty">
+<node CREATED="1463937922318" FOLDED="true" ID="ID_74130402" MODIFIED="1533608416307" TEXT="isEmpty">
 <node CREATED="1463937972255" ID="ID_1554206938" MODIFIED="1463938146376" TEXT="mu&#xdf; umdefiniert werden">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -20756,14 +20864,14 @@
 <node CREATED="1464212233893" ID="ID_1520677416" MODIFIED="1464212254420" TEXT="umdrehen in: hasSrc">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1463938033527" FOLDED="true" ID="ID_165279544" MODIFIED="1525124215544" TEXT="neue Primitive: completeScope">
+<node CREATED="1463938033527" FOLDED="true" ID="ID_165279544" MODIFIED="1533608415993" TEXT="neue Primitive: completeScope">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1464113590258" ID="ID_1613216716" MODIFIED="1464113600260" TEXT="auch ein hook f&#xfc;r Aufr&#xe4;um-Arbeiten"/>
 <node CREATED="1464113600897" ID="ID_1783943539" MODIFIED="1464113642335" TEXT="return true -- wenn alles sauber ist"/>
 <node CREATED="1464113642899" ID="ID_468050192" MODIFIED="1464113648966" TEXT="kann NOP implementiert werden"/>
 </node>
 </node>
-<node CREATED="1464114047781" FOLDED="true" ID="ID_669832549" MODIFIED="1525124216350" TEXT="reduzierte Verifikation">
+<node CREATED="1464114047781" FOLDED="true" ID="ID_669832549" MODIFIED="1533608416308" TEXT="reduzierte Verifikation">
 <icon BUILTIN="yes"/>
 <node CREATED="1464114078672" ID="ID_72653804" MODIFIED="1464114085171" TEXT="nicht bekannte Felder werden erkannt"/>
 <node CREATED="1464114086111" ID="ID_518116356" MODIFIED="1464114139188" TEXT="der Versuch von Umordnungen wird erkannt"/>
@@ -20858,7 +20966,7 @@
 <node CREATED="1464396761967" ID="ID_290057129" MODIFIED="1464397146966" TEXT="erweiterte Zeichen bedingen Locale">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1464396769974" FOLDED="true" ID="ID_1758045716" MODIFIED="1531584014215" TEXT="und welche dann??">
+<node CREATED="1464396769974" ID="ID_1758045716" MODIFIED="1533608413970" TEXT="und welche dann??">
 <node CREATED="1464396835581" ID="ID_1451158687" MODIFIED="1464396859658" TEXT="System-Locale: Recipe for Desaster"/>
 <node CREATED="1464396793123" ID="ID_1031603106" MODIFIED="1464396815972" TEXT="en_US.UTF-8"/>
 <node CREATED="1464396816696" ID="ID_75103205" MODIFIED="1464396866584" TEXT="Einschr&#xe4;nkung nicht sinnvoll zu begr&#xfc;nden">
@@ -20946,7 +21054,7 @@
 <node CREATED="1464483482949" HGAP="32" ID="ID_597384200" MODIFIED="1512926192073" TEXT="Code-Struktur" VSHIFT="15">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1464483497524" ID="ID_206433048" MODIFIED="1464483503639" TEXT="Basisklasse + Overlay"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1464483504155" FOLDED="true" ID="ID_565058375" MODIFIED="1531584014216" TEXT="unsch&#xf6;n und verwirrend">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1464483504155" ID="ID_565058375" MODIFIED="1533608413971" TEXT="unsch&#xf6;n und verwirrend">
 <node CREATED="1464483533863" ID="ID_1813082482" MODIFIED="1464483617082" TEXT="mehrfach geschachtelte Typdefinitionen">
 <icon BUILTIN="smily_bad"/>
 </node>
@@ -20972,7 +21080,7 @@
 <node CREATED="1464483601318" ID="ID_1275035047" MODIFIED="1464483610226" TEXT="gibt es &#xfc;berhaupt eine Alternative">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1465041597680" FOLDED="true" ID="ID_31475692" MODIFIED="1525124216350" TEXT="Abw&#xe4;gung">
+<node CREATED="1465041597680" FOLDED="true" ID="ID_31475692" MODIFIED="1533608416310" TEXT="Abw&#xe4;gung">
 <node CREATED="1465040677452" ID="ID_1313751992" MODIFIED="1465040776226" TEXT="OK: Klassen sind geschnitten nach Belang">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -21091,22 +21199,22 @@
 <node CREATED="1464305800207" ID="ID_1296045436" MODIFIED="1464305818736" TEXT="das &quot;Backdoor&quot; in Record::Mutator bleibt bestehen"/>
 </node>
 <node CREATED="1464305842833" ID="ID_365028607" MODIFIED="1525124215201" TEXT="Abw&#xe4;gung">
-<node CREATED="1464305847001" FOLDED="true" ID="ID_845708071" MODIFIED="1531584014216" TEXT="Aufwand">
-<node CREATED="1464305850440" FOLDED="true" ID="ID_592160280" MODIFIED="1525124216350" TEXT="dedizierte Impl">
+<node CREATED="1464305847001" ID="ID_845708071" MODIFIED="1533608413973" TEXT="Aufwand">
+<node CREATED="1464305850440" FOLDED="true" ID="ID_592160280" MODIFIED="1533608416311" TEXT="dedizierte Impl">
 <node CREATED="1464305871806" ID="ID_1200803242" MODIFIED="1464305874249" TEXT="ein Stack"/>
-<node CREATED="1464306044598" FOLDED="true" ID="ID_780490719" MODIFIED="1525124215544" TEXT="pro Stackframe">
+<node CREATED="1464306044598" FOLDED="true" ID="ID_780490719" MODIFIED="1533608415994" TEXT="pro Stackframe">
 <node CREATED="1464305896754" ID="ID_569905839" MODIFIED="1464305908965" TEXT="ref Rec::Mutator"/>
-<node CREATED="1464305910520" FOLDED="true" ID="ID_1883294095" MODIFIED="1525124215530" TEXT="Puffer: RecordContentMutator">
+<node CREATED="1464305910520" FOLDED="true" ID="ID_1883294095" MODIFIED="1533608415656" TEXT="Puffer: RecordContentMutator">
 <node CREATED="1464305921943" ID="ID_1412580517" MODIFIED="1464305927370" TEXT="Vector Attribute"/>
 <node CREATED="1464305927910" ID="ID_1641635660" MODIFIED="1464305933817" TEXT="Vector Kinder"/>
 <node CREATED="1464305989422" ID="ID_614946430" MODIFIED="1464305994825" TEXT="ein vector::iterator"/>
 </node>
 </node>
 </node>
-<node CREATED="1464305854040" FOLDED="true" ID="ID_1876525606" MODIFIED="1525124216350" TEXT="per TreeMutator">
+<node CREATED="1464305854040" FOLDED="true" ID="ID_1876525606" MODIFIED="1533608416312" TEXT="per TreeMutator">
 <node CREATED="1464305876237" ID="ID_633615671" MODIFIED="1464305878376" TEXT="ein Stack"/>
-<node CREATED="1464306061588" FOLDED="true" ID="ID_735374750" MODIFIED="1525124215545" TEXT="pro Stackframe">
-<node CREATED="1472781610135" FOLDED="true" ID="ID_150002810" MODIFIED="1525124215530">
+<node CREATED="1464306061588" FOLDED="true" ID="ID_735374750" MODIFIED="1533608415995" TEXT="pro Stackframe">
+<node CREATED="1472781610135" FOLDED="true" ID="ID_150002810" MODIFIED="1533608415659">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -21124,7 +21232,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1472781868035" FOLDED="true" HGAP="40" ID="ID_195135751" MODIFIED="1531584014217" TEXT="Unterschied minimal" VSHIFT="-3">
+<node CREATED="1472781868035" HGAP="40" ID="ID_195135751" MODIFIED="1533608413976" TEXT="Unterschied minimal" VSHIFT="-3">
 <node CREATED="1472781885352" ID="ID_327255109" MODIFIED="1472781888836" TEXT="zwei Iteratoren"/>
 <node CREATED="1472781889328" ID="ID_1298906038" MODIFIED="1472781899051" TEXT="zwei Quell-Referenzen"/>
 </node>
@@ -21202,9 +21310,9 @@
 <node CREATED="1472931195618" ID="ID_1075996120" MODIFIED="1512926192087" TEXT="aber Meta-Attribut f&#xfc;r Diff">
 <node CREATED="1472931234165" ID="ID_160523779" MODIFIED="1472931239279" TEXT="geht nicht anders"/>
 <node CREATED="1472931241027" ID="ID_1519973794" MODIFIED="1472931247263" TEXT="direkte Folge des Objekt-Modells"/>
-<node CREATED="1472931391998" FOLDED="true" ID="ID_1361356376" MODIFIED="1531584014217" TEXT="betrifft">
+<node CREATED="1472931391998" ID="ID_1361356376" MODIFIED="1533608413977" TEXT="betrifft">
 <node CREATED="1472931395526" ID="ID_1159599973" MODIFIED="1472931403393" TEXT="ins(type = X)"/>
-<node CREATED="1472931404525" FOLDED="true" ID="ID_1215961897" MODIFIED="1525124216350" TEXT="set(type = X)">
+<node CREATED="1472931404525" FOLDED="true" ID="ID_1215961897" MODIFIED="1533608416313" TEXT="set(type = X)">
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1472931416323" ID="ID_1856124935" MODIFIED="1472931434577" TEXT="AUA: bisher &#xfc;bersehen">
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -21244,7 +21352,7 @@
 <node CREATED="1472931806958" ID="ID_321203237" MODIFIED="1472931822190" TEXT="m&#xfc;&#xdf;te Binding-Operationen anpassen">
 <icon BUILTIN="smily_bad"/>
 </node>
-<node COLOR="#338800" CREATED="1472931829467" FOLDED="true" ID="ID_383672039" MODIFIED="1531584014218" STYLE="fork" TEXT="Dekorator">
+<node COLOR="#338800" CREATED="1472931829467" ID="ID_383672039" MODIFIED="1533608413978" STYLE="fork" TEXT="Dekorator">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1472934618917" ID="ID_1010335466" MODIFIED="1472934744607" TEXT="legt sich um den &#xe4;u&#xdf;eren Collection-Binding-Layer"/>
 <node CREATED="1472934635426" ID="ID_610715894" MODIFIED="1472934744607" TEXT="greift bei der injectNew und assignElm-Operation ein"/>
@@ -21252,7 +21360,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1472934695226" ID="ID_247894372" MODIFIED="1472934744607" TEXT="Code wird schwer lesbar"/>
-<node CREATED="1472934710032" FOLDED="true" ID="ID_1233852840" MODIFIED="1525124216350" TEXT="umformulieren">
+<node CREATED="1472934710032" FOLDED="true" ID="ID_1233852840" MODIFIED="1533608416314" TEXT="umformulieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1473014547678" ID="ID_1566443628" MODIFIED="1473014763323" TEXT="geht nur bedingt">
 <icon BUILTIN="smily_bad"/>
@@ -21321,7 +21429,7 @@
 <node CREATED="1472830164119" ID="ID_1323583081" MODIFIED="1512926192093" TEXT="L&#xf6;sungsansatz">
 <node CREATED="1472830177221" ID="ID_422155652" MODIFIED="1472830181729" TEXT="wie Ref::END"/>
 <node CREATED="1472830182101" ID="ID_275162903" MODIFIED="1472830195511" TEXT="aber nur einige Layer reagieren darauf"/>
-<node CREATED="1472830199203" FOLDED="true" ID="ID_35560751" MODIFIED="1531584014218" TEXT="default-return mu&#xdf; true sein">
+<node CREATED="1472830199203" ID="ID_35560751" MODIFIED="1533608413978" TEXT="default-return mu&#xdf; true sein">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1472830226455" ID="ID_1975724782" MODIFIED="1472830232658" TEXT="aber nat&#xfc;rlich nur wenn leer..."/>
 <node CREATED="1472830286462" ID="ID_1170732286" MODIFIED="1472830298035" TEXT="Einsicht: END und ATTRIBS k&#xf6;nnen nicht scheitern">
@@ -21487,11 +21595,11 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1465665579587" ID="ID_786565560" MODIFIED="1525124215211" TEXT="problematisch">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1465665594969" FOLDED="true" ID="ID_1072421347" MODIFIED="1531584014219" TEXT="unbekannte Gr&#xf6;&#xdf;e">
+<node CREATED="1465665594969" ID="ID_1072421347" MODIFIED="1533608413979" TEXT="unbekannte Gr&#xf6;&#xdf;e">
 <node CREATED="1465665884698" ID="ID_418230667" MODIFIED="1465665893757" TEXT="default-Bufferg&#xf6;&#xdf;e vorlegen"/>
 <node CREATED="1465665894273" ID="ID_970277186" MODIFIED="1465665901124" TEXT="Gr&#xf6;&#xdf;e proben und anpassen"/>
 <node CREATED="1465665901640" ID="ID_650164559" MODIFIED="1465665920298" TEXT="Gr&#xf6;&#xdf;e f&#xfc;r &quot;bekannte&quot; Targets statisch hinterlegen"/>
-<node CREATED="1465852237233" FOLDED="true" HGAP="27" ID="ID_699424989" MODIFIED="1525124216351" TEXT="Beschlu&#xdf;" VSHIFT="12">
+<node CREATED="1465852237233" FOLDED="true" HGAP="27" ID="ID_699424989" MODIFIED="1533608416316" TEXT="Beschlu&#xdf;" VSHIFT="12">
 <icon BUILTIN="yes"/>
 <node CREATED="1465852248487" ID="ID_1402619250" MODIFIED="1465852255154" TEXT="zun&#xe4;chst die einfachste L&#xf6;sung"/>
 <node CREATED="1465852255694" ID="ID_462293433" MODIFIED="1472122166677" TEXT="statisch (fest) festlegen"/>
@@ -21499,9 +21607,9 @@
 <node CREATED="1465852275859" ID="ID_394082851" MODIFIED="1465852288510" TEXT="dynamisch / Lernen als M&#xf6;glichkeit vorsehen"/>
 </node>
 </node>
-<node CREATED="1465665614990" FOLDED="true" ID="ID_1851089586" MODIFIED="1531584014219" TEXT="verwirrendes API">
+<node CREATED="1465665614990" ID="ID_1851089586" MODIFIED="1533608413980" TEXT="verwirrendes API">
 <node CREATED="1465665980686" ID="ID_1537039073" MODIFIED="1465665991232" TEXT="Anwendung sollte selbstevident sein"/>
-<node CREATED="1465666009690" FOLDED="true" ID="ID_1006664389" MODIFIED="1525124216351" TEXT="Typ-Signatur sollte den Weg weisen">
+<node CREATED="1465666009690" FOLDED="true" ID="ID_1006664389" MODIFIED="1533608416317" TEXT="Typ-Signatur sollte den Weg weisen">
 <node CREATED="1465674483754" ID="ID_155190959" MODIFIED="1465674558135" TEXT="sehe nur eine L&#xf6;sung">
 <icon BUILTIN="forward"/>
 </node>
@@ -21513,14 +21621,14 @@
 </node>
 </node>
 <node CREATED="1465665993012" ID="ID_1531461875" MODIFIED="1465666003750" TEXT="keine komplexen &quot;Riten&quot;"/>
-<node CREATED="1465666524573" FOLDED="true" HGAP="30" ID="ID_462712191" MODIFIED="1525124216351" TEXT="Schlu&#xdf;folgerung" VSHIFT="18">
+<node CREATED="1465666524573" FOLDED="true" HGAP="30" ID="ID_462712191" MODIFIED="1533608416319" TEXT="Schlu&#xdf;folgerung" VSHIFT="18">
 <icon BUILTIN="yes"/>
 <node CREATED="1465666541419" ID="ID_1090547868" MODIFIED="1465666552293" TEXT="entweder ein festes Interface"/>
 <node CREATED="1465666552842" ID="ID_1518882587" MODIFIED="1465666574594" TEXT="oder &#xfc;ber Metaprogrammierung / Spezialisierung"/>
-<node CREATED="1468761997202" FOLDED="true" ID="ID_1870085622" MODIFIED="1525124215545" TEXT="kombinierte L&#xf6;sung">
+<node CREATED="1468761997202" FOLDED="true" ID="ID_1870085622" MODIFIED="1533608415997" TEXT="kombinierte L&#xf6;sung">
 <icon BUILTIN="idea"/>
 <node CREATED="1468762009304" ID="ID_1554371522" MODIFIED="1468762018314" TEXT="Interface DiffMutable"/>
-<node CREATED="1468762031701" FOLDED="true" ID="ID_48737788" MODIFIED="1525124215530" TEXT="Meta-Adapter">
+<node CREATED="1468762031701" FOLDED="true" ID="ID_48737788" MODIFIED="1533608415664" TEXT="Meta-Adapter">
 <linktarget COLOR="#503382" DESTINATION="ID_48737788" ENDARROW="Default" ENDINCLINATION="8;131;" ID="Arrow_ID_579805576" SOURCE="ID_887400042" STARTARROW="None" STARTINCLINATION="535;0;"/>
 <node CREATED="1468762052858" ID="ID_494010261" MODIFIED="1468762066764" TEXT="synthetisiert dieses Interface"/>
 <node CREATED="1468762067383" ID="ID_484867304" MODIFIED="1468762075059" TEXT="erkennt passende Methoden"/>
@@ -21583,9 +21691,9 @@
 </node>
 </node>
 </node>
-<node CREATED="1469544027620" FOLDED="true" HGAP="38" ID="ID_1475348824" MODIFIED="1531584014220" TEXT="Storage-Probleme" VSHIFT="11">
+<node CREATED="1469544027620" HGAP="38" ID="ID_1475348824" MODIFIED="1533608413984" TEXT="Storage-Probleme" VSHIFT="11">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1469544055624" FOLDED="true" ID="ID_390940604" MODIFIED="1525124216351" TEXT="Beobachtung: Template-bloat">
+<node CREATED="1469544055624" FOLDED="true" ID="ID_390940604" MODIFIED="1533608416320" TEXT="Beobachtung: Template-bloat">
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1469544072709" ID="ID_16055877" MODIFIED="1469544083016" TEXT="Ursache: wir generieren die Klasse jedesmal neu"/>
 <node CREATED="1469544084220" ID="ID_1247343007" MODIFIED="1469544104909" TEXT="...obwohl keinerlei Bezug zum Target-Typ vorliegt">
@@ -21608,7 +21716,7 @@
 <arrowlink COLOR="#503382" DESTINATION="ID_48737788" ENDARROW="Default" ENDINCLINATION="8;131;" ID="Arrow_ID_579805576" STARTARROW="None" STARTINCLINATION="535;0;"/>
 </node>
 </node>
-<node CREATED="1469544264955" FOLDED="true" HGAP="35" ID="ID_366424331" MODIFIED="1525124216351" VSHIFT="16">
+<node CREATED="1469544264955" FOLDED="true" HGAP="35" ID="ID_366424331" MODIFIED="1533608416323" VSHIFT="16">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -21626,13 +21734,13 @@
 <node CREATED="1469544337408" ID="ID_1646108569" MODIFIED="1469544349252" TEXT="nur ctor ist nochmals ge-Templated">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1469544323331" FOLDED="true" ID="ID_1924059831" MODIFIED="1525124215545" TEXT="flexibler Teil verbleibt in ctor">
+<node CREATED="1469544323331" FOLDED="true" ID="ID_1924059831" MODIFIED="1533608415999" TEXT="flexibler Teil verbleibt in ctor">
 <icon BUILTIN="forward"/>
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 <node CREATED="1469544385882" ID="ID_82786122" MODIFIED="1469544397396" TEXT="...in Abh&#xe4;ngigkeit vom konkreten Zieltyp"/>
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 </node>
-<node CREATED="1469544471294" FOLDED="true" ID="ID_1306807662" MODIFIED="1525124215545" TEXT="Problem-1: Puffer-Gr&#xf6;&#xdf;e">
+<node CREATED="1469544471294" FOLDED="true" ID="ID_1306807662" MODIFIED="1533608416003" TEXT="Problem-1: Puffer-Gr&#xf6;&#xdf;e">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1469544519439" ID="ID_1173588510" MODIFIED="1469544535057" TEXT="Plan: Heuristik + Traits"/>
 <node CREATED="1469544536309" ID="ID_579318822" MODIFIED="1469544546951" TEXT="h&#xe4;ngt von konkretem Zieltyp ab"/>
@@ -21679,7 +21787,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1469544496907" FOLDED="true" ID="ID_447935464" MODIFIED="1525124215545" TEXT="Problem-2: re-Initialisierung">
+<node CREATED="1469544496907" FOLDED="true" ID="ID_447935464" MODIFIED="1533608416006" TEXT="Problem-2: re-Initialisierung">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1469544831244" ID="ID_756911810" MODIFIED="1469544838662" TEXT="bestehendes Protokoll">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -21726,7 +21834,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1469545080826" FOLDED="true" HGAP="41" ID="ID_268789302" MODIFIED="1525124216351" VSHIFT="17">
+<node CREATED="1469545080826" FOLDED="true" HGAP="41" ID="ID_268789302" MODIFIED="1533608416325" VSHIFT="17">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -21738,24 +21846,24 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1469545168798" FOLDED="true" ID="ID_511952630" MODIFIED="1525124215545" TEXT="Architektur">
+<node CREATED="1469545168798" FOLDED="true" ID="ID_511952630" MODIFIED="1533608416009" TEXT="Architektur">
 <node CREATED="1469545173893" ID="ID_1815808987" MODIFIED="1469545190599" TEXT="opaque: Kern == TreeMutator"/>
 <node CREATED="1469545191899" ID="ID_1298718461" MODIFIED="1469545206853" TEXT="generisch: TreeMutator-Bindung"/>
 <node CREATED="1469545208440" ID="ID_796164740" MODIFIED="1469545246870" TEXT="dediziert: Typ-Adapter"/>
 </node>
-<node CREATED="1469545401582" FOLDED="true" ID="ID_1145081121" MODIFIED="1525124215545" TEXT="konkrete Folgen...">
+<node CREATED="1469545401582" FOLDED="true" ID="ID_1145081121" MODIFIED="1533608416012" TEXT="konkrete Folgen...">
 <node CREATED="1469545417579" ID="ID_474776082" MODIFIED="1469545427486" TEXT="alle virtuellen Methoden im generischen Teil"/>
-<node CREATED="1469545428289" FOLDED="true" ID="ID_1077900797" MODIFIED="1525124215531" TEXT="generischer Teil verwendet nur Interfaces">
+<node CREATED="1469545428289" FOLDED="true" ID="ID_1077900797" MODIFIED="1533608415665" TEXT="generischer Teil verwendet nur Interfaces">
 <node CREATED="1469545452406" ID="ID_369878659" MODIFIED="1469545455778" TEXT="TreeMutator"/>
 <node CREATED="1469545456549" ID="ID_676404790" MODIFIED="1469545459401" TEXT="ScopeManager"/>
 </node>
-<node CREATED="1469545522445" FOLDED="true" ID="ID_1752356251" MODIFIED="1525124215531" TEXT="ScopeManager">
+<node CREATED="1469545522445" FOLDED="true" ID="ID_1752356251" MODIFIED="1533608415669" TEXT="ScopeManager">
 <node CREATED="1469545526380" ID="ID_141570709" MODIFIED="1469545535550" TEXT="Imp. wird per Zieltyp generiert"/>
 <node CREATED="1469545536139" ID="ID_423387515" MODIFIED="1469545543750" TEXT="lebt in opaquem Buffer"/>
 <node CREATED="1469545546209" ID="ID_229490952" MODIFIED="1469545561067" TEXT="enth&#xe4;lt Stack,"/>
 <node CREATED="1469545562151" ID="ID_1390916085" MODIFIED="1469545568130" TEXT="mit passender Puffergr&#xf6;&#xdf;e"/>
 </node>
-<node CREATED="1469545592171" FOLDED="true" ID="ID_1826413238" MODIFIED="1525124215531" TEXT="dedizierter Applikator">
+<node CREATED="1469545592171" FOLDED="true" ID="ID_1826413238" MODIFIED="1533608415688" TEXT="dedizierter Applikator">
 <icon BUILTIN="idea"/>
 <node CREATED="1469545598922" ID="ID_815414440" MODIFIED="1469545609733" TEXT="h&#xe4;llt Referenz auf Zielobjekt"/>
 <node CREATED="1469545611177" ID="ID_410214862" MODIFIED="1469545670672">
@@ -21796,7 +21904,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1469545778873" FOLDED="true" HGAP="37" ID="ID_263708712" MODIFIED="1525124215545" VSHIFT="53">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1469545778873" FOLDED="true" HGAP="37" ID="ID_263708712" MODIFIED="1533608416015" VSHIFT="53">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -21947,7 +22055,7 @@
 </html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1472172348526" FOLDED="true" ID="ID_1671229453" MODIFIED="1531584014221" TEXT="m&#xf6;gliche Alternativen">
+<node CREATED="1472172348526" ID="ID_1671229453" MODIFIED="1533608413996" TEXT="m&#xf6;gliche Alternativen">
 <node CREATED="1472172364204" ID="ID_261496162" MODIFIED="1472172467939" TEXT="Closure gibt TreeMutator&amp; zur&#xfc;ck">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -22472,7 +22580,7 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1475356066853" FOLDED="true" ID="ID_821643910" MODIFIED="1531584014221" TEXT="Problem: Puffergr&#xf6;&#xdf;e">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1475356066853" ID="ID_821643910" MODIFIED="1533608413996" TEXT="Problem: Puffergr&#xf6;&#xdf;e">
 <icon BUILTIN="messagebox_warning"/>
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@@ -22483,14 +22591,14 @@
 <node CREATED="1502453753155" ID="ID_89098030" MODIFIED="1533303965804" TEXT="Schritt-2">
 <linktarget COLOR="#bdbad3" DESTINATION="ID_89098030" ENDARROW="Default" ENDINCLINATION="600;-1189;" ID="Arrow_ID_554743885" SOURCE="ID_1584846573" STARTARROW="None" STARTINCLINATION="1459;870;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1502453814499" FOLDED="true" ID="ID_727706359" MODIFIED="1531584014221" TEXT="Puffer-Ansatz...">
+<node CREATED="1502453814499" ID="ID_727706359" MODIFIED="1533608413997" TEXT="Puffer-Ansatz...">
 <node CREATED="1502453828721" ID="ID_1337002332" MODIFIED="1502453830621" TEXT="komplex"/>
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 <node CREATED="1502453842463" ID="ID_1995272746" MODIFIED="1502453861969" TEXT="unn&#xf6;tiges Kopieren"/>
 <node CREATED="1502453836112" ID="ID_1547334309" MODIFIED="1502453841067" TEXT="insgeheim doch gekoppelt"/>
 </node>
 <node CREATED="1502454064930" ID="ID_1876117833" MODIFIED="1502454072133" TEXT="brauche Entkoppelung"/>
-<node CREATED="1502454072649" FOLDED="true" ID="ID_1325287539" MODIFIED="1531584014222">
+<node CREATED="1502454072649" ID="ID_1325287539" MODIFIED="1533608413997">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -22507,11 +22615,11 @@
 <node CREATED="1502454089783" ID="ID_104095093" MODIFIED="1502454093290" TEXT="zum Erzeuger"/>
 <node CREATED="1502454093814" ID="ID_1063793799" MODIFIED="1502454099337" TEXT="zum Empf&#xe4;nger"/>
 </node>
-<node CREATED="1502454117907" FOLDED="true" ID="ID_995116747" MODIFIED="1531584014222" TEXT="abstrakter Iterator">
+<node CREATED="1502454117907" ID="ID_995116747" MODIFIED="1533608413998" TEXT="abstrakter Iterator">
 <icon BUILTIN="forward"/>
 <node CREATED="1502454128617" ID="ID_1019985292" MODIFIED="1502454135844" TEXT="mu&#xdf; Interface sein"/>
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-<node CREATED="1502454139496" FOLDED="true" ID="ID_455247221" MODIFIED="1525124216351" TEXT="Problem: &#xdc;bergabe">
+<node CREATED="1502454139496" FOLDED="true" ID="ID_455247221" MODIFIED="1533608416326" TEXT="Problem: &#xdc;bergabe">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1502454152431" ID="ID_1452648004" MODIFIED="1502454163000" TEXT="Diff &#xfc;ber Thread-Grenzen hinweg"/>
 <node CREATED="1502454163685" ID="ID_1591230048" MODIFIED="1502454169704" TEXT="Pull-Prinzip"/>
@@ -22588,16 +22696,16 @@
 <arrowlink COLOR="#9f96d9" DESTINATION="ID_1853473792" ENDARROW="Default" ENDINCLINATION="41;-121;" ID="Arrow_ID_503281678" STARTARROW="Default" STARTINCLINATION="1873;0;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
-<node CREATED="1475449719180" FOLDED="true" ID="ID_6178930" MODIFIED="1531584014223" TEXT="Sinnvoll das zu erweitern">
+<node CREATED="1475449719180" ID="ID_6178930" MODIFIED="1533608413999" TEXT="Sinnvoll das zu erweitern">
 <icon BUILTIN="help"/>
-<node CREATED="1475450034810" FOLDED="true" ID="ID_445949466" MODIFIED="1525124216351" TEXT="pro">
+<node CREATED="1475450034810" FOLDED="true" ID="ID_445949466" MODIFIED="1533608416327" TEXT="pro">
 <icon BUILTIN="button_cancel"/>
-<node CREATED="1475450042009" FOLDED="true" ID="ID_1941838908" MODIFIED="1525124215585" TEXT="man k&#xf6;nnte">
+<node CREATED="1475450042009" FOLDED="true" ID="ID_1941838908" MODIFIED="1533608416017" TEXT="man k&#xf6;nnte">
 <node CREATED="1475450050824" ID="ID_1660008285" MODIFIED="1475450053243" TEXT="ins"/>
 <node CREATED="1475450055775" ID="ID_1213643084" MODIFIED="1475450058698" TEXT="after::END"/>
 <node CREATED="1475450064470" ID="ID_754885592" MODIFIED="1475450069265" TEXT="assign / mutate"/>
 </node>
-<node CREATED="1475450148771" FOLDED="true" ID="ID_736367412" MODIFIED="1525124215586">
+<node CREATED="1475450148771" FOLDED="true" ID="ID_736367412" MODIFIED="1533608416018">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -22615,7 +22723,7 @@
 <node CREATED="1475450053927" ID="ID_1110207658" MODIFIED="1475450055018" TEXT="pick"/>
 </node>
 </node>
-<node CREATED="1475450038953" FOLDED="true" ID="ID_1285250844" MODIFIED="1525124216352" TEXT="con">
+<node CREATED="1475450038953" FOLDED="true" ID="ID_1285250844" MODIFIED="1533608416329" TEXT="con">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1475450285336" ID="ID_288261682" MODIFIED="1475450300712" TEXT="kein Schutz gegen sinnlose Operationen"/>
 <node CREATED="1475450229944" ID="ID_957217069" MODIFIED="1475450239042" TEXT="Reihenfolge ist Impl-Detail"/>
@@ -22653,7 +22761,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1475506346525" FOLDED="true" ID="ID_574367406" MODIFIED="1531584014223" VSHIFT="6">
+<node CREATED="1475506346525" ID="ID_574367406" MODIFIED="1533608414015" VSHIFT="6">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -22696,7 +22804,7 @@
 </html></richcontent>
 <font NAME="SansSerif" SIZE="10"/>
 </node>
-<node COLOR="#338800" CREATED="1475506514203" FOLDED="true" HGAP="45" ID="ID_1183193114" MODIFIED="1525124216352" TEXT="Begr&#xfc;ndung" VSHIFT="23">
+<node COLOR="#338800" CREATED="1475506514203" FOLDED="true" HGAP="45" ID="ID_1183193114" MODIFIED="1533608416331" TEXT="Begr&#xfc;ndung" VSHIFT="23">
 <node CREATED="1475506528937" ID="ID_1971084550" MODIFIED="1475506538324" TEXT="es verletzt die Prinzipien"/>
 <node CREATED="1475506538983" ID="ID_1555995664" MODIFIED="1475506547491" TEXT="insofern aber wie Feld-Attribute auch"/>
 <node CREATED="1475506549886" ID="ID_275560362" MODIFIED="1475506558609" TEXT="eingeschr&#xe4;nkt unterst&#xfc;tzbar"/>
@@ -24646,13 +24754,13 @@
 <node CREATED="1491692431021" ID="ID_1526880552" MODIFIED="1491692436375" TEXT="wollen wir das?"/>
 <node CREATED="1491692438907" ID="ID_1137204114" MODIFIED="1491692452509" TEXT="oder nur f&#xfc;r explizite Spezialisierungen?"/>
 <node CREATED="1491692779933" ID="ID_184706664" MODIFIED="1491692783680" TEXT="Abw&#xe4;gung">
-<node CREATED="1491692784692" FOLDED="true" ID="ID_875264954" MODIFIED="1531584014224" TEXT="pro">
+<node CREATED="1491692784692" ID="ID_875264954" MODIFIED="1533608414018" TEXT="pro">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1491692786876" ID="ID_1725123375" MODIFIED="1491692800733" TEXT="Einheitliches Interface"/>
 <node CREATED="1491692887517" ID="ID_832151078" MODIFIED="1491692894912" TEXT="Bus k&#xf6;nnte weitere Trennschicht werden"/>
 <node CREATED="1491692922625" ID="ID_1378937117" MODIFIED="1491692927444" TEXT="Bus ist gut unit-testbar"/>
 </node>
-<node CREATED="1491692931040" FOLDED="true" ID="ID_1678638713" MODIFIED="1531584014225" TEXT="con">
+<node CREATED="1491692931040" ID="ID_1678638713" MODIFIED="1533608414020" TEXT="con">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1491692990840" ID="ID_1200979620" MODIFIED="1491692995939" TEXT="ziemlich indirekt"/>
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@@ -24823,12 +24931,12 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1492295091826" FOLDED="true" ID="ID_96156600" MODIFIED="1531584014225" TEXT="bisher">
+<node CREATED="1492295091826" ID="ID_96156600" MODIFIED="1533608414021" TEXT="bisher">
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 <node CREATED="1492295104096" ID="ID_104008616" MODIFIED="1492295116282" TEXT="Sonst wird einfach globales Command genomen"/>
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 </node>
-<node CREATED="1492295122765" FOLDED="true" ID="ID_1120774629" MODIFIED="1531584014226" TEXT="jetzt">
+<node CREATED="1492295122765" ID="ID_1120774629" MODIFIED="1533608414022" TEXT="jetzt">
 <node CREATED="1492295137387" ID="ID_1142805823" MODIFIED="1492295146318" TEXT="offene Instanz wird genommen"/>
 <node CREATED="1492295146794" ID="ID_715268835" MODIFIED="1492295159372" TEXT="Sonst wird anonyme Instanz gebildet"/>
 <node CREATED="1492295160320" ID="ID_289465814" MODIFIED="1492295164348" TEXT="gebunden und gefeuert"/>
@@ -24861,11 +24969,11 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1492295834844" FOLDED="true" ID="ID_1465048391" MODIFIED="1531584014226" TEXT="bisher">
+<node CREATED="1492295834844" ID="ID_1465048391" MODIFIED="1533608414023" TEXT="bisher">
 <node CREATED="1492295891844" ID="ID_219295848" MODIFIED="1492295983675" TEXT="offene Instanz wird zum Dispatcher verschoben"/>
 <node CREATED="1492295914304" ID="ID_196991118" MODIFIED="1492295939921" TEXT="globales Command wird direkt an den Dispatcher &#xfc;bergeben"/>
 </node>
-<node CREATED="1492295855881" FOLDED="true" ID="ID_1570343929" MODIFIED="1531584014226" TEXT="jetzt">
+<node CREATED="1492295855881" ID="ID_1570343929" MODIFIED="1533608414023" TEXT="jetzt">
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 </node>
@@ -25000,7 +25108,7 @@
 <icon BUILTIN="smiley-neutral"/>
 </node>
 <node CREATED="1492099069702" ID="ID_1623888568" MODIFIED="1492099073097" TEXT="Bestandteile">
-<node CREATED="1492099077900" FOLDED="true" ID="ID_489218136" MODIFIED="1531584014227" TEXT="Standard-Kontexte">
+<node CREATED="1492099077900" ID="ID_489218136" MODIFIED="1533608414024" TEXT="Standard-Kontexte">
 <node CREATED="1492099101785" ID="ID_1493219189" MODIFIED="1492099107713" TEXT="INTO_PROJECT"/>
 <node CREATED="1492099089419" ID="ID_1867923525" MODIFIED="1492099092055" TEXT="INTO_FORK"/>
 <node CREATED="1492099093187" ID="ID_999642842" MODIFIED="1492099097382" TEXT="INTO_BIN"/>
@@ -25008,7 +25116,7 @@
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-<node CREATED="1492099167960" FOLDED="true" ID="ID_52357728" MODIFIED="1531584014227" TEXT="Argument-Resolver">
+<node CREATED="1492099167960" ID="ID_52357728" MODIFIED="1533608414024" TEXT="Argument-Resolver">
 <node CREATED="1492099172695" ID="ID_1174757682" MODIFIED="1492099177035" TEXT="scope(HERE)"/>
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@@ -25290,11 +25398,11 @@
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1492170822396" ID="ID_1848739236" MODIFIED="1492170827759" TEXT="es ist alles klar"/>
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-<node CREATED="1492170863838" FOLDED="true" ID="ID_1183166030" MODIFIED="1531584014227" TEXT="Beispiel">
+<node CREATED="1492170863838" ID="ID_1183166030" MODIFIED="1533608414025" TEXT="Beispiel">
 <node CREATED="1492170878863" MODIFIED="1492170878863" TEXT="globale Men&#xfc;-Aktion"/>
 <node CREATED="1492170880371" ID="ID_594766034" MODIFIED="1492170903172" TEXT="schlie&#xdf;e Session!"/>
 </node>
-<node CREATED="1492170941739" FOLDED="true" ID="ID_1680428229" MODIFIED="1531584014228" TEXT="L&#xf6;sung">
+<node CREATED="1492170941739" ID="ID_1680428229" MODIFIED="1533608414025" TEXT="L&#xf6;sung">
 <node CREATED="1492170947610" ID="ID_1247697440" MODIFIED="1492170955606" TEXT="Funktor bereitstellen"/>
 <node CREATED="1492170966264" ID="ID_1737975858" MODIFIED="1492170972019" TEXT="kein Bus-Term notwendig"/>
 <node CREATED="1492170957161" ID="ID_1082986883" MODIFIED="1492170963732" TEXT="Argumente und Trigger in einem"/>
@@ -25306,11 +25414,11 @@
 <node CREATED="1492171419802" ID="ID_393104252" MODIFIED="1492171434347" TEXT="lokale Verdrahtung mit etwas Logik"/>
 <node CREATED="1492171517084" ID="ID_45739538" MODIFIED="1492171533742" TEXT="Widget verwendet eigene Command-Instanz"/>
 <node CREATED="1492171540017" ID="ID_110960992" MODIFIED="1492171546252" TEXT="f&#xfc;hrt aber dann das Binden direkt aus"/>
-<node CREATED="1492171547624" FOLDED="true" ID="ID_1140206188" MODIFIED="1531584014228" TEXT="L&#xf6;sung">
+<node CREATED="1492171547624" ID="ID_1140206188" MODIFIED="1533608414025" TEXT="L&#xf6;sung">
 <node CREATED="1492171736734" ID="ID_685211506" MODIFIED="1492443151644" TEXT="lokal bekannte Command-ID"/>
 <node CREATED="1492171753436" ID="ID_1576877235" MODIFIED="1492171764262" TEXT="Widget verwendet sein BusTerm"/>
 </node>
-<node CREATED="1492171774185" FOLDED="true" HGAP="23" ID="ID_11015489" MODIFIED="1531584014229" TEXT="Unterschied zu fire-and-forget?" VSHIFT="11">
+<node CREATED="1492171774185" HGAP="23" ID="ID_11015489" MODIFIED="1533608414026" TEXT="Unterschied zu fire-and-forget?" VSHIFT="11">
 <icon BUILTIN="help"/>
 <node CREATED="1492171947257" ID="ID_1137709019" MODIFIED="1492171949469" TEXT="kaum einer"/>
 <node CREATED="1492172515236" ID="ID_180853795" MODIFIED="1492172525262" TEXT="Binden ist ein separater Aufruf"/>
@@ -25324,14 +25432,14 @@
 <node CREATED="1492172984411" ID="ID_14678074" MODIFIED="1492173001613" TEXT="InteractionState wei&#xdf;, ob Command ausf&#xfc;hrbar ist"/>
 <node CREATED="1492173003905" ID="ID_173633221" MODIFIED="1492173080128" TEXT="von beliebigem Tangible triggerbar"/>
 <node CREATED="1492172679797" ID="ID_1836674310" MODIFIED="1492172684920" TEXT="Aktivierungs-Callbacks"/>
-<node CREATED="1492173454299" FOLDED="true" HGAP="22" ID="ID_1346472068" MODIFIED="1531584014229" TEXT="L&#xf6;sung" VSHIFT="10">
+<node CREATED="1492173454299" HGAP="22" ID="ID_1346472068" MODIFIED="1533608414026" TEXT="L&#xf6;sung" VSHIFT="10">
 <node CREATED="1492173481023" ID="ID_285008060" MODIFIED="1492173494690" TEXT="InteractionState pro Kontext(ID)"/>
 <node CREATED="1492173497269" ID="ID_365694462" MODIFIED="1492173519950" TEXT="speichert binding patterns pro Command"/>
 <node CREATED="1492173637978" ID="ID_1696162932" MODIFIED="1492173647765" TEXT="BindingPattern erkennt Ausf&#xfc;hrbarkeit"/>
 <node CREATED="1492173787950" ID="ID_318157835" MODIFIED="1492173802664" TEXT="Command-Instanz wird erst sp&#xe4;t (bei Bedarf) gebildet"/>
 <node CREATED="1492173813466" ID="ID_1383483945" MODIFIED="1492173828300" TEXT="sie wird sofort vom InteractionState fertig parametrisiert"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1492206477974" FOLDED="true" HGAP="28" ID="ID_1639842825" MODIFIED="1531584014230" TEXT="Zukunft" VSHIFT="14">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1492206477974" HGAP="28" ID="ID_1639842825" MODIFIED="1533608414027" TEXT="Zukunft" VSHIFT="14">
 <icon BUILTIN="yes"/>
 <node CREATED="1492206491525" ID="ID_1000204628" MODIFIED="1492206500103" TEXT="das wird einmal essentiell"/>
 <node CREATED="1492206500643" ID="ID_1716565687" MODIFIED="1492206505343" TEXT="aber noch nicht gleich ben&#xf6;tigt"/>
@@ -25394,13 +25502,13 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1492205884680" HGAP="22" ID="ID_1123687976" MODIFIED="1492205904295" TEXT="Schlu&#xdf;folgerung" VSHIFT="15">
 <icon BUILTIN="forward"/>
-<node CREATED="1492205906237" FOLDED="true" ID="ID_900884756" MODIFIED="1531584014230" TEXT="der UI-Bus ist eine Architektur-Entscheidung">
+<node CREATED="1492205906237" ID="ID_900884756" MODIFIED="1533608414027" TEXT="der UI-Bus ist eine Architektur-Entscheidung">
 <icon BUILTIN="yes"/>
 <node CREATED="1492205915980" ID="ID_1147449569" MODIFIED="1492205922022" TEXT="es geht hier nicht um Performance"/>
 <node CREATED="1492205922851" ID="ID_64631579" MODIFIED="1492205930525" TEXT="der direkte Auf&#xfc;hrungs-Pfad ist egal"/>
 <node CREATED="1492206055640" ID="ID_1375005290" MODIFIED="1492206059883" TEXT="es geht um die Struktur"/>
 </node>
-<node CREATED="1492205953694" FOLDED="true" ID="ID_801761661" MODIFIED="1531584014231" TEXT="deshalb werden Command nicht &quot;hintenrum&quot; getriggert">
+<node CREATED="1492205953694" ID="ID_801761661" MODIFIED="1533608414028" TEXT="deshalb werden Command nicht &quot;hintenrum&quot; getriggert">
 <icon BUILTIN="yes"/>
 <node CREATED="1492206398465" ID="ID_255699527" MODIFIED="1492206403349" TEXT="kein fire-and-forget"/>
 <node CREATED="1492206423622" ID="ID_1494333022" MODIFIED="1492206428977" TEXT="widget-local ist immer gut genug"/>
@@ -25659,12 +25767,12 @@
 <node CREATED="1489717304621" ID="ID_1984888825" MODIFIED="1489717311967" TEXT="CmdInstanceManager hat Hashtable"/>
 <node CREATED="1489717425684" ID="ID_205251145" MODIFIED="1489717436846" TEXT="Instance-Management komplett eingekapselt"/>
 <node CREATED="1489717312532" ID="ID_1911293548" MODIFIED="1492443198294" TEXT="key ist Basis-Cmd-ID + Kontext-ID"/>
-<node CREATED="1489717395312" FOLDED="true" ID="ID_1098297494" MODIFIED="1531584014231" TEXT="InvocationTrail speichert nur diese ID">
+<node CREATED="1489717395312" ID="ID_1098297494" MODIFIED="1533608414028" TEXT="InvocationTrail speichert nur diese ID">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1492443231533" ID="ID_648420580" MODIFIED="1492443237416" TEXT="Konzept aufgegeben"/>
 <node CREATED="1492443238668" ID="ID_516547594" MODIFIED="1492443243711" TEXT="unn&#xf6;tige Indirektion"/>
 </node>
-<node CREATED="1489717406447" FOLDED="true" ID="ID_1938762085" MODIFIED="1531584014231" TEXT="Bang sendet nur diese ID">
+<node CREATED="1489717406447" ID="ID_1938762085" MODIFIED="1533608414028" TEXT="Bang sendet nur diese ID">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1492205513779" ID="ID_36883868" MODIFIED="1492205520773" TEXT="Bang gibts nicht mehr"/>
 </node>
@@ -25844,7 +25952,7 @@
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1489781616257" ID="ID_1645536558" MODIFIED="1518487921094" TEXT="Schema f&#xfc;r ID-Konstanten"/>
 <node CREATED="1489781628743" ID="ID_1733247268" MODIFIED="1518487921094" TEXT="Mechanismus, der die Definition treibt"/>
-<node CREATED="1489781758389" FOLDED="true" ID="ID_1124650374" MODIFIED="1533400559326" TEXT="gew&#xfc;nscht">
+<node CREATED="1489781758389" ID="ID_1124650374" MODIFIED="1533608414029" TEXT="gew&#xfc;nscht">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1489781775443" ID="ID_379002135" MODIFIED="1518487921094" TEXT="Name und Definition nahe zusammen"/>
 <node CREATED="1489781769500" ID="ID_998243238" MODIFIED="1518487921094" TEXT="keine Redundanz"/>
@@ -25853,7 +25961,7 @@
 <node CREATED="1489781923640" ID="ID_241861600" MODIFIED="1518487921094" TEXT="kommentierbar (Doxygen)"/>
 <node CREATED="1489785114574" ID="ID_241665479" MODIFIED="1518487921094" TEXT="nur unsichtbare Magie"/>
 </node>
-<node CREATED="1489785137083" FOLDED="true" ID="ID_1466955376" MODIFIED="1533400554305" TEXT="M&#xf6;glichkeiten">
+<node CREATED="1489785137083" ID="ID_1466955376" MODIFIED="1533608414033" TEXT="M&#xf6;glichkeiten">
 <node CREATED="1489785163216" ID="ID_1992894903" MODIFIED="1489785168547" TEXT="zu Fu&#xdf;...">
 <node CREATED="1489785199131" ID="ID_111396262" MODIFIED="1489785207662" TEXT="ID-Konstanten im Header deklarieren"/>
 <node CREATED="1489785208298" ID="ID_315886293" MODIFIED="1489785222188" TEXT="ID-Konstanten in der jeweiligen translation-Unit definieren"/>
@@ -25912,7 +26020,7 @@
 </node>
 <node CREATED="1489791729957" ID="ID_1986771449" MODIFIED="1525124215299" TEXT="kombinierte Magie">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1489791798116" FOLDED="true" ID="ID_197500257" MODIFIED="1533400573516" TEXT="Definitions-Klasse">
+<node CREATED="1489791798116" ID="ID_197500257" MODIFIED="1533608414034" TEXT="Definitions-Klasse">
 <icon BUILTIN="idea"/>
 <node CREATED="1489791805675" ID="ID_1517636242" MODIFIED="1489811237752" TEXT="ist konvertierbar nach Literal">
 <icon BUILTIN="button_ok"/>
@@ -25921,7 +26029,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1489791849245" ID="ID_262482724" MODIFIED="1489791860879" TEXT="bietet interne DSL"/>
-<node CREATED="1489795277835" FOLDED="true" ID="ID_663997649" MODIFIED="1533400569940" TEXT="Name gesucht...?">
+<node CREATED="1489795277835" ID="ID_663997649" MODIFIED="1533608414035" TEXT="Name gesucht...?">
 <icon BUILTIN="help"/>
 <node CREATED="1489795288354" ID="ID_960791386" MODIFIED="1489795346577" TEXT="CommandInstance">
 <icon BUILTIN="button_cancel"/>
@@ -25966,7 +26074,7 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1490985692550" ID="ID_300485716" MODIFIED="1490985696321" TEXT="einfache Komponente"/>
 <node CREATED="1490985710963" ID="ID_447657694" MODIFIED="1490985717974" TEXT="keinerlei Lifecycle-Magie"/>
-<node CREATED="1490985720722" FOLDED="true" ID="ID_1386937508" MODIFIED="1533400614400" TEXT="ist nur eine Registry mit etwas Funktionalit&#xe4;t">
+<node CREATED="1490985720722" ID="ID_1386937508" MODIFIED="1533608414037" TEXT="ist nur eine Registry mit etwas Funktionalit&#xe4;t">
 <node CREATED="1490986294710" ID="ID_558020871" MODIFIED="1533400457991" TEXT="Command-IDs dekorieren"/>
 <node CREATED="1490986302197" ID="ID_1305641719" MODIFIED="1491004967731" TEXT="fortlaufenden Z&#xe4;hler verwalten">
 <icon BUILTIN="button_cancel"/>
@@ -26385,15 +26493,15 @@
 <node CREATED="1440983865102" ID="ID_306959180" MODIFIED="1440983871265" TEXT="hoch effizient"/>
 <node CREATED="1440983872517" ID="ID_1633584594" MODIFIED="1440983880175" TEXT="pa&#xdf;t genau"/>
 <node CREATED="1440983880715" ID="ID_617483189" MODIFIED="1440983893678" TEXT="erfordert speziellen ResultIter"/>
-<node COLOR="#999999" CREATED="1440984125546" FOLDED="true" ID="ID_461442477" MODIFIED="1531584014232" TEXT="TODO">
+<node COLOR="#999999" CREATED="1440984125546" ID="ID_461442477" MODIFIED="1533608414037" TEXT="TODO">
 <font NAME="SansSerif" SIZE="10"/>
 <icon BUILTIN="button_cancel"/>
-<node CREATED="1440984130872" FOLDED="true" ID="ID_579146044" MODIFIED="1525124216352" TEXT="ResultIter">
+<node CREATED="1440984130872" FOLDED="true" ID="ID_579146044" MODIFIED="1533608416332" TEXT="ResultIter">
 <node CREATED="1440984214126" ID="ID_1124020862" MODIFIED="1441937180496" TEXT="GenNode-Zeiger"/>
 <node CREATED="1440984221636" ID="ID_1279195509" MODIFIED="1441937180496" TEXT="Scope-Marker"/>
 </node>
 <node CREATED="1440984158949" ID="ID_1602941967" MODIFIED="1441937180496" TEXT="BuilderTrait"/>
-<node CREATED="1440984166132" FOLDED="true" ID="ID_761913732" MODIFIED="1525124216352" TEXT="explorer Funktion">
+<node CREATED="1440984166132" FOLDED="true" ID="ID_761913732" MODIFIED="1533608416333" TEXT="explorer Funktion">
 <node CREATED="1440984256512" ID="ID_1965762804" MODIFIED="1441937180496" TEXT="verwendet Variant::Visitor"/>
 <node CREATED="1440984273357" ID="ID_153302412" MODIFIED="1441937180496" TEXT="steigt in Records ein"/>
 </node>
@@ -26487,12 +26595,12 @@
 <node CREATED="1441936356831" ID="ID_1423049913" MODIFIED="1441936372500" TEXT="aber die Indirektion f&#xfc;r die Funktion f&#xe4;llt weg">
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node COLOR="#338800" CREATED="1441936386803" FOLDED="true" ID="ID_588658088" MODIFIED="1531584014233" TEXT="TODO">
+<node COLOR="#338800" CREATED="1441936386803" ID="ID_588658088" MODIFIED="1533608414039" TEXT="TODO">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1441936422725" ID="ID_1581368426" MODIFIED="1441936433181" TEXT="ScopeExplorer-Mechanismus mit Stack">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1441936434644" FOLDED="true" ID="ID_455233841" MODIFIED="1525124216352" TEXT="innerer Iterator">
+<node CREATED="1441936434644" FOLDED="true" ID="ID_455233841" MODIFIED="1533608416334" TEXT="innerer Iterator">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1441936451042" ID="ID_1773948072" MODIFIED="1441936476114" TEXT="disjunktiver Typ"/>
 <node CREATED="1441936869273" ID="ID_864580946" MODIFIED="1441936878867" TEXT="entweder GenNode, oder Rec"/>
@@ -26539,7 +26647,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1441936900076" FOLDED="true" ID="ID_1582043438" MODIFIED="1525124216352" TEXT="Explorer-Funktion">
+<node CREATED="1441936900076" FOLDED="true" ID="ID_1582043438" MODIFIED="1533608416336" TEXT="Explorer-Funktion">
 <node CREATED="1441936911211" ID="ID_722452490" MODIFIED="1441936917230" TEXT="kommt in DataCap"/>
 <node CREATED="1441936983313" ID="ID_1843183144" MODIFIED="1441936990892" TEXT="mu&#xdf; den inneren Iterator liefern"/>
 <node CREATED="1441937000487" ID="ID_312630797" MODIFIED="1441937028412">
@@ -26841,14 +26949,14 @@
 </node>
 <node CREATED="1436924529208" ID="ID_1300693998" MODIFIED="1512926192327" TEXT="Handhabung des Typ-Feldes">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1436925315589" FOLDED="true" ID="ID_327577903" MODIFIED="1531584014233" TEXT="herausfiltern">
+<node CREATED="1436925315589" ID="ID_327577903" MODIFIED="1533608414041" TEXT="herausfiltern">
 <icon BUILTIN="help"/>
 <node CREATED="1439826509444" ID="ID_333663358" MODIFIED="1439826524386" TEXT="ja">
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1439826512572" ID="ID_1522833188" MODIFIED="1439826522070" TEXT="aus beliebigem Attribut"/>
 </node>
-<node CREATED="1436924568352" FOLDED="true" ID="ID_1243616839" MODIFIED="1531584014233" TEXT="in Attribut-Iterator">
+<node CREATED="1436924568352" ID="ID_1243616839" MODIFIED="1533608414041" TEXT="in Attribut-Iterator">
 <icon BUILTIN="help"/>
 <node CREATED="1439826529649" ID="ID_1514781996" MODIFIED="1439826559628" TEXT="w&#xe4;re sch&#xf6;n">
 <icon BUILTIN="ksmiletris"/>
@@ -26888,7 +26996,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node CREATED="1436924578936" FOLDED="true" ID="ID_677097690" MODIFIED="1531584014234" TEXT="in Attribut-Collection ablegen">
+<node CREATED="1436924578936" ID="ID_677097690" MODIFIED="1533608414042" TEXT="in Attribut-Collection ablegen">
 <icon BUILTIN="help"/>
 <node CREATED="1439826758699" ID="ID_873913305" MODIFIED="1439826761999" TEXT="pfiffige Idee"/>
 <node CREATED="1439826762731" ID="ID_339809602" MODIFIED="1439826766758" TEXT="aber eigentlich ein Pfusch"/>
@@ -26958,7 +27066,7 @@
   </body>
 </html></richcontent>
 </node>
-<node BACKGROUND_COLOR="#ffcccc" COLOR="#990033" CREATED="1434205598709" FOLDED="true" ID="ID_235720343" MODIFIED="1531584014234" TEXT="stand-in hei&#xdf;t...">
+<node BACKGROUND_COLOR="#ffcccc" COLOR="#990033" CREATED="1434205598709" ID="ID_235720343" MODIFIED="1533608414042" TEXT="stand-in hei&#xdf;t...">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1434205739609" ID="ID_1185983904" MODIFIED="1434205778045" TEXT="kann anstelle eines Objektes treten"/>
 <node CREATED="1434205834506" ID="ID_1477654683" MODIFIED="1434205859229" TEXT="transparent f&#xfc;r den Aufrufer"/>
@@ -27424,8 +27532,8 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1443738179947" FOLDED="true" ID="ID_1249607715" MODIFIED="1531584014235" TEXT="&quot;Liste&quot;">
-<node CREATED="1443738196336" FOLDED="true" ID="ID_855336404" MODIFIED="1525124216352" TEXT="Vorteile">
+<node CREATED="1443738179947" ID="ID_1249607715" MODIFIED="1533608414043" TEXT="&quot;Liste&quot;">
+<node CREATED="1443738196336" FOLDED="true" ID="ID_855336404" MODIFIED="1533608416338" TEXT="Vorteile">
 <node CREATED="1443738556296" ID="ID_340267804" MODIFIED="1443738562763" TEXT="verwendet vorhandene Impl"/>
 <node CREATED="1443738563263" ID="ID_583767245" MODIFIED="1443738575817" TEXT="uniforme Semantik der Diff-Sprache"/>
 <node CREATED="1443738577781" ID="ID_1622210655" MODIFIED="1443738793488" TEXT="partielle Ordnung darstellbar">
@@ -27480,7 +27588,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1443738199160" FOLDED="true" ID="ID_955544777" MODIFIED="1525124216352" TEXT="Nachteile">
+<node CREATED="1443738199160" FOLDED="true" ID="ID_955544777" MODIFIED="1533608416338" TEXT="Nachteile">
 <node CREATED="1443738500000" ID="ID_201650237" MODIFIED="1443738505571" TEXT="Duplikate toleriert"/>
 <node CREATED="1443738929854" ID="ID_852940283" MODIFIED="1443739153420" TEXT="sinnloser Index-Aufbau (Diff-Erzeugung)">
 <richcontent TYPE="NOTE"><html>
@@ -27514,11 +27622,11 @@
 </node>
 </node>
 </node>
-<node CREATED="1443738179947" FOLDED="true" ID="ID_1861982554" MODIFIED="1531584014235" TEXT="&quot;Map&quot;">
-<node CREATED="1443738196336" FOLDED="true" ID="ID_997066012" MODIFIED="1525124216353" TEXT="Vorteile">
+<node CREATED="1443738179947" ID="ID_1861982554" MODIFIED="1533608414045" TEXT="&quot;Map&quot;">
+<node CREATED="1443738196336" FOLDED="true" ID="ID_997066012" MODIFIED="1533608416339" TEXT="Vorteile">
 <node CREATED="1443738237731" ID="ID_1438410748" MODIFIED="1443738244389" TEXT="Konformit&#xe4;t garantiert"/>
 </node>
-<node CREATED="1443738199160" FOLDED="true" ID="ID_571621671" MODIFIED="1525124216353" TEXT="Nachteile">
+<node CREATED="1443738199160" FOLDED="true" ID="ID_571621671" MODIFIED="1533608416341" TEXT="Nachteile">
 <node CREATED="1443738352419" ID="ID_439396381" MODIFIED="1443738730869" TEXT="Effizienz der Storage">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -27572,11 +27680,11 @@
 <icon BUILTIN="info"/>
 <node CREATED="1443739221631" ID="ID_338047062" MODIFIED="1443739227649" TEXT="&quot;Listen&quot;-Modell"/>
 <node CREATED="1443739228542" ID="ID_773218806" MODIFIED="1443739244615" TEXT="eindeutig vorzuziehen"/>
-<node CREATED="1443739245483" FOLDED="true" ID="ID_1943112941" MODIFIED="1531584014236" TEXT="zwei Gr&#xfc;nde">
+<node CREATED="1443739245483" ID="ID_1943112941" MODIFIED="1533608414046" TEXT="zwei Gr&#xfc;nde">
 <node CREATED="1443739308651" ID="ID_1436069181" MODIFIED="1443739311142" TEXT="Performance"/>
 <node CREATED="1443739311562" ID="ID_1848034442" MODIFIED="1443739314222" TEXT="Wartbarkeit"/>
 </node>
-<node CREATED="1443739323033" FOLDED="true" ID="ID_1428762486" MODIFIED="1531584014236" TEXT="&quot;zwei Listen&quot;-Modell">
+<node CREATED="1443739323033" ID="ID_1428762486" MODIFIED="1533608414047" TEXT="&quot;zwei Listen&quot;-Modell">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1443739335823" ID="ID_860198617" MODIFIED="1443739349777" TEXT="intern f&#xfc;hren wir zwei Listen-Diffs durch"/>
 <node CREATED="1443739350869" ID="ID_464299464" MODIFIED="1443739368974" TEXT="ein Trennkriterium f&#xfc;hrt zum Umschalten"/>
@@ -28844,7 +28952,7 @@
 </node>
 <node CREATED="1521081597008" HGAP="23" ID="ID_198915567" MODIFIED="1525124215414" TEXT="Design-Schlu&#xdf;folgerungen" VSHIFT="11">
 <icon BUILTIN="info"/>
-<node CREATED="1521081661071" FOLDED="true" ID="ID_500707872" MODIFIED="1531584014237" TEXT="L&#xf6;sung-1">
+<node CREATED="1521081661071" ID="ID_500707872" MODIFIED="1533608414048" TEXT="L&#xf6;sung-1">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -28872,7 +28980,7 @@
 <node CREATED="1521081709169" ID="ID_390237547" MODIFIED="1521081723794" TEXT="ein zentraler Header, wird per depend.hpp includiert"/>
 <node CREATED="1521081724766" ID="ID_1002030069" MODIFIED="1521081739408" TEXT="erfordert Forwards aller zu spezialisierenden Payload-Typen"/>
 </node>
-<node CREATED="1521081775631" FOLDED="true" ID="ID_1326847098" MODIFIED="1531584014237" TEXT="L&#xf6;sung-2">
+<node CREATED="1521081775631" ID="ID_1326847098" MODIFIED="1533608414048" TEXT="L&#xf6;sung-2">
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@@ -28903,12 +29011,12 @@
 <node CREATED="1521082548173" ID="ID_1948451513" MODIFIED="1521082559567" TEXT="Konsistenz nur per Laufzeit-Check"/>
 <node CREATED="1521082560611" ID="ID_1943270534" MODIFIED="1521082576132" TEXT="fragil da von Init-Ordnung abh&#xe4;ngig"/>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1521082621363" FOLDED="true" ID="ID_1344462005" MODIFIED="1531584014238" TEXT="L&#xf6;sung-NEU">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1521082621363" ID="ID_1344462005" MODIFIED="1533608414049" TEXT="L&#xf6;sung-NEU">
 <icon BUILTIN="flag-yellow"/>
 <node COLOR="#338800" CREATED="1521082670076" ID="ID_916083959" MODIFIED="1521160630521" TEXT="geeignete Technik gesucht">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1521082703384" FOLDED="true" ID="ID_510028220" MODIFIED="1525124216353" TEXT="Anforderungen / W&#xfc;nsche">
+<node CREATED="1521082703384" FOLDED="true" ID="ID_510028220" MODIFIED="1533608416343" TEXT="Anforderungen / W&#xfc;nsche">
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 <node CREATED="1521082629322" ID="ID_1026313608" MODIFIED="1521082657826" TEXT="Storage und Zugriffs-Steuerung in einem Modul zusammen"/>
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@@ -28918,7 +29026,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1521158992344" FOLDED="true" ID="ID_985106186" MODIFIED="1525124216353" TEXT="Fazit">
+<node CREATED="1521158992344" FOLDED="true" ID="ID_985106186" MODIFIED="1533608416345" TEXT="Fazit">
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@@ -29123,9 +29231,9 @@
 </node>
 <node CREATED="1521207954859" ID="ID_631339002" MODIFIED="1521418307590" TEXT="Analyse">
 <icon BUILTIN="idea"/>
-<node CREATED="1521208242178" FOLDED="true" ID="ID_539882602" MODIFIED="1531584014238" TEXT="erforderliche Mechanismen">
+<node CREATED="1521208242178" ID="ID_539882602" MODIFIED="1533608414052" TEXT="erforderliche Mechanismen">
 <icon BUILTIN="info"/>
-<node COLOR="#338800" CREATED="1521208254376" FOLDED="true" ID="ID_1933406851" MODIFIED="1525124216353" TEXT="Singleton">
+<node COLOR="#338800" CREATED="1521208254376" FOLDED="true" ID="ID_1933406851" MODIFIED="1533608416347" TEXT="Singleton">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521208339124" ID="ID_287433738" MODIFIED="1521696567487" TEXT="Closure &#xfc;ber konkreten Ctor">
 <icon BUILTIN="button_ok"/>
@@ -29146,7 +29254,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521208257336" FOLDED="true" ID="ID_1129640741" MODIFIED="1525124216353" TEXT="ServiceInstance">
+<node COLOR="#338800" CREATED="1521208257336" FOLDED="true" ID="ID_1129640741" MODIFIED="1533608416349" TEXT="ServiceInstance">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521208859989" ID="ID_549061661" MODIFIED="1521387920055" TEXT="Lazy-Init-Factory deaktivieren">
 <icon BUILTIN="button_ok"/>
@@ -29176,7 +29284,7 @@
 <node COLOR="#338800" CREATED="1521208724943" ID="ID_1527628667" MODIFIED="1521335442003" TEXT="smart-ptr-artiger Zugriff auf die Service-Impl">
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-<node CREATED="1521208339124" FOLDED="true" ID="ID_1092066450" MODIFIED="1525124215586" TEXT="(optional)Closure &#xfc;ber konkreten Ctor">
+<node CREATED="1521208339124" FOLDED="true" ID="ID_1092066450" MODIFIED="1533608416020" TEXT="(optional)Closure &#xfc;ber konkreten Ctor">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1521688310369" ID="ID_1697840327" MODIFIED="1521688369496" TEXT="sinnlos">
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@@ -29196,7 +29304,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521208261887" FOLDED="true" ID="ID_384054163" MODIFIED="1525124216353" TEXT="Local">
+<node COLOR="#338800" CREATED="1521208261887" FOLDED="true" ID="ID_384054163" MODIFIED="1533608416352" TEXT="Local">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521209044203" ID="ID_1994153994" MODIFIED="1521696576989" TEXT="(optional)Closure mit speziellen Argumenten ">
 <icon BUILTIN="button_ok"/>
@@ -29210,7 +29318,7 @@
 <node COLOR="#338800" CREATED="1521209547606" ID="ID_1693604174" MODIFIED="1521411853636" TEXT="tempor&#xe4;r neuen Service-Zugang in Depend&lt;Bla&gt; installieren, an erzeugte Closure delegierend">
 <icon BUILTIN="button_ok"/>
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-<node COLOR="#338800" CREATED="1521209759585" FOLDED="true" ID="ID_267047467" MODIFIED="1525124215586" TEXT="Lebenszyklus-Koppelung">
+<node COLOR="#338800" CREATED="1521209759585" FOLDED="true" ID="ID_267047467" MODIFIED="1533608416021" TEXT="Lebenszyklus-Koppelung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521209811802" ID="ID_1712617923" MODIFIED="1521411860363" TEXT="f&#xfc;r die UnterBla-Instanz">
 <icon BUILTIN="button_ok"/>
@@ -29222,12 +29330,12 @@
 <node COLOR="#338800" CREATED="1521208724943" ID="ID_221402501" MODIFIED="1521411863017" TEXT="smart-ptr-artiger Zugriff auf die Service-Impl">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1521209904013" FOLDED="true" ID="ID_1098048607" MODIFIED="1525124215586" STYLE="fork" TEXT="debug/Kontroll-API">
+<node CREATED="1521209904013" FOLDED="true" ID="ID_1098048607" MODIFIED="1533608416024" STYLE="fork" TEXT="debug/Kontroll-API">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521209958014" ID="ID_1638584681" MODIFIED="1521411938195" TEXT="Lebenszustand">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1521209945287" FOLDED="true" ID="ID_42798820" MODIFIED="1525124215531" TEXT="Erzeugen/Zerst&#xf6;ren der Instanz">
+<node CREATED="1521209945287" FOLDED="true" ID="ID_42798820" MODIFIED="1533608415691" TEXT="Erzeugen/Zerst&#xf6;ren der Instanz">
 <icon BUILTIN="button_cancel"/>
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@@ -29237,15 +29345,15 @@
 </node>
 </node>
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-<node CREATED="1521213011289" FOLDED="true" ID="ID_1360216253" MODIFIED="1531584014239" TEXT="Vereinheitlichung">
+<node CREATED="1521213011289" ID="ID_1360216253" MODIFIED="1533608414058" TEXT="Vereinheitlichung">
 <icon BUILTIN="idea"/>
-<node CREATED="1521213017168" FOLDED="true" ID="ID_1734833663" MODIFIED="1525124216353" TEXT="alle Varianten">
+<node CREATED="1521213017168" FOLDED="true" ID="ID_1734833663" MODIFIED="1533608416354" TEXT="alle Varianten">
 <node CREATED="1521213036670" ID="ID_1288760048" MODIFIED="1521416387077" TEXT="sind move-only">
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-<node CREATED="1521236923444" FOLDED="true" ID="ID_909632246" MODIFIED="1525124215586" TEXT="irgendwie...">
+<node CREATED="1521236923444" FOLDED="true" ID="ID_909632246" MODIFIED="1533608416026" TEXT="irgendwie...">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1521236930715" ID="ID_1673303474" MODIFIED="1521236948604" TEXT="managen alle die Service-Instanz"/>
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@@ -29263,20 +29371,20 @@
 <node CREATED="1521236997978" ID="ID_937624268" MODIFIED="1521237012251" TEXT="...und im Fall Singleton lebt die Factory l&#xe4;nger"/>
 </node>
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-<node CREATED="1521237050866" FOLDED="true" ID="ID_306994173" MODIFIED="1525124216354" TEXT="die Factory">
-<node CREATED="1521237057169" FOLDED="true" ID="ID_1684411297" MODIFIED="1525124215586" TEXT="ist stets stateless">
+<node CREATED="1521237050866" FOLDED="true" ID="ID_306994173" MODIFIED="1533608416355" TEXT="die Factory">
+<node CREATED="1521237057169" FOLDED="true" ID="ID_1684411297" MODIFIED="1533608416027" TEXT="ist stets stateless">
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 <node CREATED="1521237387044" ID="ID_1004256215" MODIFIED="1521237394199" TEXT="speichert aber eine konkrete Closure"/>
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-<node CREATED="1521238550267" FOLDED="true" ID="ID_722062331" MODIFIED="1525124216354" TEXT="Ort f&#xfc;r Storage">
-<node CREATED="1521238557210" FOLDED="true" ID="ID_674365093" MODIFIED="1525124215587" TEXT="f&#xfc;r die Factory">
+<node CREATED="1521238550267" FOLDED="true" ID="ID_722062331" MODIFIED="1533608416356" TEXT="Ort f&#xfc;r Storage">
+<node CREATED="1521238557210" FOLDED="true" ID="ID_674365093" MODIFIED="1533608416029" TEXT="f&#xfc;r die Factory">
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 <icon BUILTIN="button_cancel"/>
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-<node CREATED="1521238576920" FOLDED="true" ID="ID_1251870411" MODIFIED="1525124215531" TEXT="in DependInject">
+<node CREATED="1521238576920" FOLDED="true" ID="ID_1251870411" MODIFIED="1533608415697" TEXT="in DependInject">
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@@ -29286,7 +29394,7 @@
 <icon BUILTIN="stop-sign"/>
 </node>
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-<node CREATED="1521240566398" FOLDED="true" ID="ID_1596629515" MODIFIED="1525124215531" TEXT="in den Trampolin-Funktionen">
+<node CREATED="1521240566398" FOLDED="true" ID="ID_1596629515" MODIFIED="1533608415699" TEXT="in den Trampolin-Funktionen">
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@@ -29294,11 +29402,11 @@
 </node>
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-<node CREATED="1521238641935" FOLDED="true" ID="ID_1638918713" MODIFIED="1525124215587" TEXT="Factory-Trampolin">
+<node CREATED="1521238641935" FOLDED="true" ID="ID_1638918713" MODIFIED="1533608416031" TEXT="Factory-Trampolin">
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-<node CREATED="1521238665347" FOLDED="true" ID="ID_1310408215" MODIFIED="1525124215531" TEXT="statisch">
+<node CREATED="1521238665347" FOLDED="true" ID="ID_1310408215" MODIFIED="1533608415701" TEXT="statisch">
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@@ -29315,7 +29423,7 @@
 <arrowlink COLOR="#a9c1bb" DESTINATION="ID_669924852" ENDARROW="Default" ENDINCLINATION="795;125;" ID="Arrow_ID_949036001" STARTARROW="None" STARTINCLINATION="779;51;"/>
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-<node CREATED="1521239059741" FOLDED="true" ID="ID_1063831478" MODIFIED="1531584014239" TEXT="Grenzf&#xe4;lle ausklammern">
+<node CREATED="1521239059741" ID="ID_1063831478" MODIFIED="1533608414063" TEXT="Grenzf&#xe4;lle ausklammern">
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@@ -29352,20 +29460,20 @@
 </node>
 <node COLOR="#338800" CREATED="1521169086441" ID="ID_284471203" MODIFIED="1522557526161" TEXT="Design">
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-<node CREATED="1521240317600" FOLDED="true" ID="ID_1626104494" MODIFIED="1525124215587" TEXT="Design-1">
+<node CREATED="1521240056932" ID="ID_1189728630" MODIFIED="1533608414064" TEXT="Strukturen">
+<node CREATED="1521240105285" FOLDED="true" ID="ID_711335043" MODIFIED="1533608416358" TEXT="Dependency-Factory">
+<node CREATED="1521240317600" FOLDED="true" ID="ID_1626104494" MODIFIED="1533608416034" TEXT="Design-1">
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-<node CREATED="1521240336717" FOLDED="true" ID="ID_468626388" MODIFIED="1525124215587" TEXT="Design-2">
+<node CREATED="1521240336717" FOLDED="true" ID="ID_468626388" MODIFIED="1533608416036" TEXT="Design-2">
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-<node CREATED="1521241544559" FOLDED="true" ID="ID_1174783081" MODIFIED="1525124215531" TEXT="nur eine Funktion konfigurierbar">
+<node CREATED="1521241544559" FOLDED="true" ID="ID_1174783081" MODIFIED="1533608415703" TEXT="nur eine Funktion konfigurierbar">
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@@ -29374,27 +29482,27 @@
 <linktarget COLOR="#b4a9c1" DESTINATION="ID_1336783261" ENDARROW="Default" ENDINCLINATION="224;0;" ID="Arrow_ID_37940927" SOURCE="ID_870619413" STARTARROW="None" STARTINCLINATION="83;-7;"/>
 <icon BUILTIN="stop-sign"/>
 </node>
-<node COLOR="#338800" CREATED="1522389217216" FOLDED="true" ID="ID_1137026613" MODIFIED="1525124215587" TEXT="bekommt neue Rolle">
+<node COLOR="#338800" CREATED="1522389217216" FOLDED="true" ID="ID_1137026613" MODIFIED="1533608416038" TEXT="bekommt neue Rolle">
 <icon BUILTIN="button_ok"/>
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-<node CREATED="1521242246702" FOLDED="true" ID="ID_650712800" MODIFIED="1525124216354" TEXT="DependInject">
+<node CREATED="1521242246702" FOLDED="true" ID="ID_650712800" MODIFIED="1533608416359" TEXT="DependInject">
 <node CREATED="1521242468983" ID="ID_956915310" MODIFIED="1521242481313" TEXT="ist nur ein Lebenszyklus-Manager"/>
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 <node CREATED="1521242758775" ID="ID_594637783" MODIFIED="1521242762355" TEXT="ist komplett generisch"/>
 </node>
-<node CREATED="1521242784556" FOLDED="true" ID="ID_1052722676" MODIFIED="1525124216354" TEXT="Konfig-Selektor">
+<node CREATED="1521242784556" FOLDED="true" ID="ID_1052722676" MODIFIED="1533608416361" TEXT="Konfig-Selektor">
 <node CREATED="1521242793458" ID="ID_1174857326" MODIFIED="1521242802085" TEXT="baut die Closure"/>
 <node CREATED="1521242805641" ID="ID_68866373" MODIFIED="1521242811164" TEXT="baut die funktionale Konfig"/>
 <node CREATED="1521242824239" ID="ID_1013563756" MODIFIED="1521242834313" TEXT="inline-wegwerf-Objekt"/>
 </node>
 </node>
-<node CREATED="1521240053852" FOLDED="true" ID="ID_666003564" MODIFIED="1531584014241" STYLE="fork" TEXT="Detail-Fragen">
+<node CREATED="1521240053852" ID="ID_666003564" MODIFIED="1533608414069" STYLE="fork" TEXT="Detail-Fragen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#990000" CREATED="1521169099047" FOLDED="true" ID="ID_1183392158" MODIFIED="1525124216354" TEXT="DependencyFactory-Rahmenklasse">
+<node COLOR="#990000" CREATED="1521169099047" FOLDED="true" ID="ID_1183392158" MODIFIED="1533608416361" TEXT="DependencyFactory-Rahmenklasse">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1521416462342" ID="ID_1333178845" MODIFIED="1521418281285" TEXT="f&#xe4;llt weg"/>
 <node CREATED="1521416471820" ID="ID_870619413" MODIFIED="1521418281285" TEXT="wir arbeiten direkt mit Lambdas">
@@ -29407,7 +29515,7 @@
 <node COLOR="#338800" CREATED="1521169130251" ID="ID_1252056818" MODIFIED="1521418281285" TEXT="Zugang f&#xfc;r DependInject">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1521324229082" FOLDED="true" ID="ID_1398878858" MODIFIED="1525124216354" TEXT="Storage">
+<node COLOR="#338800" CREATED="1521324229082" FOLDED="true" ID="ID_1398878858" MODIFIED="1533608416363" TEXT="Storage">
 <icon BUILTIN="button_ok"/>
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 <richcontent TYPE="NODE"><html>
@@ -29422,7 +29530,7 @@
 </html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node CREATED="1521324275919" FOLDED="true" ID="ID_1710451095" MODIFIED="1525124215587" TEXT="sehe aber auch keinen wirklichen Vorteil">
+<node CREATED="1521324275919" FOLDED="true" ID="ID_1710451095" MODIFIED="1533608416040" TEXT="sehe aber auch keinen wirklichen Vorteil">
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@@ -29453,11 +29561,11 @@
 <icon BUILTIN="button_ok"/>
 </node>
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-<node COLOR="#338800" CREATED="1521254014422" FOLDED="true" ID="ID_961824675" MODIFIED="1525124216354" TEXT="Meyers Singleton oder explizit ausprogrammieren?">
+<node COLOR="#338800" CREATED="1521254014422" FOLDED="true" ID="ID_961824675" MODIFIED="1533608416365" TEXT="Meyers Singleton oder explizit ausprogrammieren?">
 <icon BUILTIN="help"/>
 <node CREATED="1521303577633" ID="ID_1665490706" MODIFIED="1521418281285" TEXT="das w&#xe4;re die &quot;Standard-L&#xf6;sung&quot; f&#xfc;r Singletons"/>
-<node CREATED="1521303616675" FOLDED="true" ID="ID_135579041" MODIFIED="1525124215587" TEXT="hier aber nicht sinnvoll...">
-<node CREATED="1521303634705" FOLDED="true" ID="ID_433169847" MODIFIED="1525124215532" TEXT="weil wir explizit ein Lock halten m&#xfc;ssen">
+<node CREATED="1521303616675" FOLDED="true" ID="ID_135579041" MODIFIED="1533608416043" TEXT="hier aber nicht sinnvoll...">
+<node CREATED="1521303634705" FOLDED="true" ID="ID_433169847" MODIFIED="1533608415704" TEXT="weil wir explizit ein Lock halten m&#xfc;ssen">
 <node CREATED="1521303738410" ID="ID_213625497" MODIFIED="1521418281286" TEXT="um den Instanz-Pointer und die Factory zu managen"/>
 <node CREATED="1521303749169" ID="ID_762346402" MODIFIED="1521418281286" TEXT="und der Compiler f&#xfc;r Meyers Singleton nochmal ein Lock generiert"/>
 </node>
@@ -29481,12 +29589,12 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521253797733" FOLDED="true" ID="ID_1640990866" MODIFIED="1525124216354" TEXT="Fehlerbehandlung">
+<node COLOR="#338800" CREATED="1521253797733" FOLDED="true" ID="ID_1640990866" MODIFIED="1533608416367" TEXT="Fehlerbehandlung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521253803963" ID="ID_100415207" MODIFIED="1521418281286" TEXT="Installation wenn Factory bereits genutzt wurde">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1521253831776" FOLDED="true" ID="ID_1332033733" MODIFIED="1525124215588" TEXT="Zugriff auf Service bevor er hochgefahren wurde">
+<node COLOR="#338800" CREATED="1521253831776" FOLDED="true" ID="ID_1332033733" MODIFIED="1533608416046" TEXT="Zugriff auf Service bevor er hochgefahren wurde">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1521253858692" ID="ID_442301762" MODIFIED="1521418281286" TEXT="t&#xfc;ckisch">
 <icon BUILTIN="broken-line"/>
@@ -29494,7 +29602,7 @@
 <node CREATED="1521253867787" ID="ID_662728746" MODIFIED="1521418281286" TEXT="Lifecycle-Handle existiert erst viel sp&#xe4;ter">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1521385652999" FOLDED="true" ID="ID_1974848336" MODIFIED="1525124215532" TEXT="statischer Schutz">
+<node CREATED="1521385652999" FOLDED="true" ID="ID_1974848336" MODIFIED="1533608415707" TEXT="statischer Schutz">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1521385660206" FOLDED="true" ID="ID_200575604" MODIFIED="1525124215518" TEXT="fragil">
 <icon BUILTIN="stop-sign"/>
@@ -29546,7 +29654,7 @@
 <node COLOR="#338800" CREATED="1521253986491" ID="ID_546204807" MODIFIED="1521418281286" TEXT="Singleton wenn Interfaceklasse abstrakt ist">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1522557552545" FOLDED="true" ID="ID_399844845" MODIFIED="1525124215588" TEXT="Zugriff im statischen Shutdown">
+<node COLOR="#338800" CREATED="1522557552545" FOLDED="true" ID="ID_399844845" MODIFIED="1533608416049" TEXT="Zugriff im statischen Shutdown">
 <linktarget COLOR="#27a7a7" DESTINATION="ID_399844845" ENDARROW="Default" ENDINCLINATION="-36;283;" ID="Arrow_ID_1430148682" SOURCE="ID_1023585478" STARTARROW="None" STARTINCLINATION="104;0;"/>
 <linktarget COLOR="#487bba" DESTINATION="ID_399844845" ENDARROW="Default" ENDINCLINATION="237;509;" ID="Arrow_ID_1393532861" SOURCE="ID_1003385410" STARTARROW="None" STARTINCLINATION="733;-537;"/>
 <icon BUILTIN="button_ok"/>
@@ -29554,14 +29662,14 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="broken-line"/>
 </node>
-<node CREATED="1522557575925" FOLDED="true" ID="ID_1228603701" MODIFIED="1525124215532" TEXT="Frage: eigenen Basis-Layer im System schaffen?">
+<node CREATED="1522557575925" FOLDED="true" ID="ID_1228603701" MODIFIED="1533608415710" TEXT="Frage: eigenen Basis-Layer im System schaffen?">
 <arrowlink COLOR="#af98b6" DESTINATION="ID_736034555" ENDARROW="Default" ENDINCLINATION="2208;-356;" ID="Arrow_ID_1927977085" STARTARROW="None" STARTINCLINATION="448;721;"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1522557704291" ID="ID_1761521925" MODIFIED="1522557712303" TEXT="durchdiskutiert und abgelehnt"/>
 <node CREATED="1522557712890" ID="ID_898328822" MODIFIED="1522557717398" TEXT="wird sehr kompliziert"/>
 <node CREATED="1522557718154" ID="ID_36441623" MODIFIED="1522557725172" TEXT="architektonisch nicht sinnvoll"/>
 </node>
-<node CREATED="1522557731064" FOLDED="true" ID="ID_164363356" MODIFIED="1525124215532" TEXT="Untersuchung: statische Init">
+<node CREATED="1522557731064" FOLDED="true" ID="ID_164363356" MODIFIED="1533608415714" TEXT="Untersuchung: statische Init">
 <icon BUILTIN="idea"/>
 <node CREATED="1522557739071" ID="ID_1920814871" MODIFIED="1522557754025" TEXT="verh&#xe4;lt sich tats&#xe4;chlich korrekt lt. Standard"/>
 <node CREATED="1522557754877" ID="ID_1831893028" MODIFIED="1522557767223" TEXT="das ClassLock wird erst on-demand erzeugt"/>
@@ -29588,7 +29696,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1522557828066" FOLDED="true" ID="ID_1861289683" MODIFIED="1525124215532" TEXT="Fazit">
+<node CREATED="1522557828066" FOLDED="true" ID="ID_1861289683" MODIFIED="1533608415717" TEXT="Fazit">
 <icon BUILTIN="forward"/>
 <node COLOR="#338800" CREATED="1522558005906" ID="ID_1914654214" MODIFIED="1522558192841" TEXT="re-entrance w&#xe4;hrend dem dtor-Aufruf eigens behandeln">
 <richcontent TYPE="NOTE"><html>
@@ -29637,7 +29745,7 @@
 </node>
 <node COLOR="#338800" CREATED="1521418598463" ID="ID_237484313" MODIFIED="1531584013617" TEXT="Objekterzeugung erweitern">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#990000" CREATED="1521418618052" FOLDED="true" ID="ID_1253147848" MODIFIED="1531584014241" TEXT="auf beliebige Argumente">
+<node COLOR="#990000" CREATED="1521418618052" ID="ID_1253147848" MODIFIED="1533608414078" TEXT="auf beliebige Argumente">
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1521688471643" ID="ID_1037697154" MODIFIED="1521688504558" TEXT="gef&#xe4;hrlich wenn Objekterzeugung lazy">
 <icon BUILTIN="messagebox_warning"/>
@@ -29647,14 +29755,14 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521418627130" FOLDED="true" ID="ID_206705145" MODIFIED="1531584014242" TEXT="auf allgemeine Closures">
+<node COLOR="#338800" CREATED="1521418627130" ID="ID_206705145" MODIFIED="1533608414078" TEXT="auf allgemeine Closures">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1521696315169" ID="ID_914761003" MODIFIED="1521696326988" TEXT="ob das wohl geht...."/>
 <node CREATED="1521696477035" ID="ID_1232450528" MODIFIED="1521696510682" TEXT="Verdammter Mist! Wird die Closure nun kopiert oder geMOVEd?"/>
 <node COLOR="#338800" CREATED="1521696673440" ID="ID_1408713510" MODIFIED="1521751343055" TEXT="compile-time Checks mal verifizieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1521696334383" FOLDED="true" ID="ID_1627167666" MODIFIED="1525124216355" TEXT="gef&#xe4;llt mir nicht wirklich">
+<node CREATED="1521696334383" FOLDED="true" ID="ID_1627167666" MODIFIED="1533608416368" TEXT="gef&#xe4;llt mir nicht wirklich">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -29695,9 +29803,9 @@
 </node>
 <node COLOR="#338800" CREATED="1521433938944" ID="ID_546086969" MODIFIED="1531584013622" TEXT="double-checked-locking">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1521433948534" FOLDED="true" ID="ID_176845865" MODIFIED="1531584014242" TEXT="umstellen auf atomics">
+<node COLOR="#338800" CREATED="1521433948534" ID="ID_176845865" MODIFIED="1533608414081" TEXT="umstellen auf atomics">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1521779239745" FOLDED="true" ID="ID_1772115642" MODIFIED="1525124216355">
+<node CREATED="1521779239745" FOLDED="true" ID="ID_1772115642" MODIFIED="1533608416369">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -29724,10 +29832,10 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1521788423421" FOLDED="true" ID="ID_992901826" MODIFIED="1525124216355" TEXT="use-cases">
+<node CREATED="1521788423421" FOLDED="true" ID="ID_992901826" MODIFIED="1533608416371" TEXT="use-cases">
 <font NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="forward"/>
-<node CREATED="1521788428588" FOLDED="true" ID="ID_1454492096" MODIFIED="1525124215588" TEXT="lazy init">
+<node CREATED="1521788428588" FOLDED="true" ID="ID_1454492096" MODIFIED="1533608416050" TEXT="lazy init">
 <node CREATED="1521788443562" ID="ID_699722245" MODIFIED="1521788611886" TEXT="acquire-release ist &quot;ausreichend&quot;">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -29765,7 +29873,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1521788695911" FOLDED="true" ID="ID_326620949" MODIFIED="1525124215588" TEXT="config Singleton-sub">
+<node CREATED="1521788695911" FOLDED="true" ID="ID_326620949" MODIFIED="1533608416054" TEXT="config Singleton-sub">
 <node CREATED="1521788724243" ID="ID_1337448866" MODIFIED="1521788751467" TEXT="hier wird synchronizes-with per Mutex (blocking) hergestellt"/>
 <node CREATED="1521788777364" ID="ID_1496795291" MODIFIED="1521788787982" TEXT="der Atomic wird nur gelesen, um einen Fehler zu erkennen"/>
 <node CREATED="1521788788546" ID="ID_1572121226" MODIFIED="1521788818778" TEXT="...es w&#xfc;rde sogar ein nicht-atomic gen&#xfc;gen"/>
@@ -29793,8 +29901,8 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1521789050110" FOLDED="true" ID="ID_916308999" MODIFIED="1525124215588" TEXT="start Service">
-<node CREATED="1521789241116" FOLDED="true" ID="ID_1521979010" MODIFIED="1525124215532" TEXT="Frage: besteht hier eine race-condition?">
+<node CREATED="1521789050110" FOLDED="true" ID="ID_916308999" MODIFIED="1533608416057" TEXT="start Service">
+<node CREATED="1521789241116" FOLDED="true" ID="ID_1521979010" MODIFIED="1533608415720" TEXT="Frage: besteht hier eine race-condition?">
 <icon BUILTIN="help"/>
 <node CREATED="1521789253954" ID="ID_1012950744" MODIFIED="1521789259925" TEXT="das ist eine Architektur-Frage"/>
 <node CREATED="1521789283782" FOLDED="true" ID="ID_87566462" MODIFIED="1525124215518" TEXT="&quot;Ja&quot; w&#xfc;rde bedeuten....">
@@ -29841,9 +29949,9 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
-<node CREATED="1521789938539" FOLDED="true" ID="ID_1248059454" MODIFIED="1525124215588" TEXT="stop Service">
+<node CREATED="1521789938539" FOLDED="true" ID="ID_1248059454" MODIFIED="1533608416058" TEXT="stop Service">
 <node CREATED="1521789943683" ID="ID_128133787" MODIFIED="1521790025755" TEXT="v&#xf6;llig analog: instance = nullptr braucht release-Semantik"/>
-<node CREATED="1521790091662" FOLDED="true" ID="ID_1518955379" MODIFIED="1525124215532" TEXT="Frage: besteht ein Race auf den Destruktor?">
+<node CREATED="1521790091662" FOLDED="true" ID="ID_1518955379" MODIFIED="1533608415723" TEXT="Frage: besteht ein Race auf den Destruktor?">
 <icon BUILTIN="help"/>
 <node CREATED="1521790108228" ID="ID_1075157743" MODIFIED="1521790114983" TEXT="das ist wiederum eine Architektur-Frage"/>
 <node CREATED="1521790115851" ID="ID_1077549103" MODIFIED="1521790219873" TEXT="theoretisch besteht er sehr wohl">
@@ -29929,8 +30037,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1521791102683" FOLDED="true" ID="ID_1344381807" MODIFIED="1525124215588" TEXT="Mock">
-<node CREATED="1521791122872" FOLDED="true" ID="ID_236648459" MODIFIED="1525124215532" TEXT="Generell unterstellen wir hier gutm&#xfc;tige Verh&#xe4;ltnisse">
+<node CREATED="1521791102683" FOLDED="true" ID="ID_1344381807" MODIFIED="1533608416060" TEXT="Mock">
+<node CREATED="1521791122872" FOLDED="true" ID="ID_236648459" MODIFIED="1533608415725" TEXT="Generell unterstellen wir hier gutm&#xfc;tige Verh&#xe4;ltnisse">
 <node CREATED="1521791137678" ID="ID_1107870970" MODIFIED="1521791147768" TEXT="Mocks sollen niemals produktiv verwendet werden"/>
 <node CREATED="1521791149596" ID="ID_301182144" MODIFIED="1521791176628" TEXT="Concurrency tritt (wenn &#xfc;berhaupt) nur sehr kontrolliert auf"/>
 </node>
@@ -29940,7 +30048,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521434009142" FOLDED="true" ID="ID_117782655" MODIFIED="1531584014243" TEXT="Performance-Messung">
+<node COLOR="#338800" CREATED="1521434009142" ID="ID_117782655" MODIFIED="1533608414088" TEXT="Performance-Messung">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1521791686994" ID="ID_1750734364" MODIFIED="1521791753975" TEXT="Erwartetes Ergebnis: wird nur geringf&#xfc;gig langsamer">
 <richcontent TYPE="NOTE"><html>
@@ -29957,7 +30065,7 @@
 <node COLOR="#338800" CREATED="1521866206751" ID="ID_702466096" MODIFIED="1521882798384" TEXT="Bezugspunkt: Zugriff auf bereits existierenden Service">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1521791785677" FOLDED="true" ID="ID_565916879" MODIFIED="1525124216355" TEXT="drei F&#xe4;lle">
+<node CREATED="1521791785677" FOLDED="true" ID="ID_565916879" MODIFIED="1533608416372" TEXT="drei F&#xe4;lle">
 <icon BUILTIN="forward"/>
 <node COLOR="#338800" CREATED="1521791790172" ID="ID_995415475" MODIFIED="1521882801672" TEXT="Mutex f&#xfc;r jeden Zugriff">
 <icon BUILTIN="button_ok"/>
@@ -29977,27 +30085,27 @@
 <node COLOR="#338800" CREATED="1522110414912" ID="ID_1861060212" MODIFIED="1531584013624" TEXT="Singleton-Erzeugung zusammenf&#xfc;hren">
 <linktarget COLOR="#5f8d94" DESTINATION="ID_1861060212" ENDARROW="Default" ENDINCLINATION="-566;0;" ID="Arrow_ID_319700222" SOURCE="ID_1624172022" STARTARROW="None" STARTINCLINATION="205;-440;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1522110563499" FOLDED="true" ID="ID_470760423" MODIFIED="1531584014243" TEXT="stets ausf&#xfc;hrend">
+<node CREATED="1522110563499" ID="ID_470760423" MODIFIED="1533608414089" TEXT="stets ausf&#xfc;hrend">
 <icon BUILTIN="idea"/>
 <node CREATED="1522110568307" ID="ID_311971109" MODIFIED="1522110579069" TEXT="Depend&lt;SUB&gt;"/>
 <node CREATED="1522110579561" ID="ID_1773742926" MODIFIED="1522110587404" TEXT="mit SUB == konkreter Typ"/>
 </node>
-<node CREATED="1522110657678" FOLDED="true" ID="ID_22217041" MODIFIED="1531584014243" TEXT="Locking/Korrektheit">
+<node CREATED="1522110657678" ID="ID_22217041" MODIFIED="1533608414089" TEXT="Locking/Korrektheit">
 <node CREATED="1522110665733" ID="ID_329494929" MODIFIED="1522110676431" TEXT="Achtung abweichender Typ!">
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1522110683363" ID="ID_352813223" MODIFIED="1522110710611" TEXT="Normaler Zugang via Depend&lt;SUB&gt; wird zum Synonym"/>
-<node CREATED="1522111399080" FOLDED="true" ID="ID_753159927" MODIFIED="1525124216355" TEXT="kaskadierend">
+<node CREATED="1522111399080" FOLDED="true" ID="ID_753159927" MODIFIED="1533608416373" TEXT="kaskadierend">
 <node CREATED="1522110724165" ID="ID_879974852" MODIFIED="1522110749614" TEXT="acquire Lock&lt;SUB&gt;"/>
 <node CREATED="1522110842845" ID="ID_12886357" MODIFIED="1522110920894" TEXT="store into Depend&lt;SUB&gt;::instance"/>
 </node>
 </node>
-<node CREATED="1522110508507" FOLDED="true" ID="ID_789229743" MODIFIED="1531584014244" TEXT="F&#xe4;lle">
-<node CREATED="1522110513930" FOLDED="true" ID="ID_752814721" MODIFIED="1525124216355" TEXT="normal-default">
+<node CREATED="1522110508507" ID="ID_789229743" MODIFIED="1533608414090" TEXT="F&#xe4;lle">
+<node CREATED="1522110513930" FOLDED="true" ID="ID_752814721" MODIFIED="1533608416374" TEXT="normal-default">
 <node CREATED="1522113463844" ID="ID_1945711876" MODIFIED="1522113489197" TEXT="nur Konstruktor / Destruktor-Funktion"/>
 <node CREATED="1522113490025" ID="ID_1330140057" MODIFIED="1522113531135" TEXT="Alternativ-Behandlung f&#xfc;r nicht-instantiierbare Typen"/>
 </node>
-<node CREATED="1522110520777" FOLDED="true" ID="ID_336202422" MODIFIED="1525124216355" TEXT="Subclass-default">
+<node CREATED="1522110520777" FOLDED="true" ID="ID_336202422" MODIFIED="1533608416375" TEXT="Subclass-default">
 <node CREATED="1522113128835" ID="ID_166213716" MODIFIED="1522113152107" TEXT="kaskadierenden Zugriff als Factory"/>
 <node CREATED="1522113152999" ID="ID_1443678098" MODIFIED="1522113288917" TEXT="Instantiierungs-Check kann entfallen">
 <richcontent TYPE="NOTE"><html>
@@ -30024,9 +30132,9 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1522110531344" FOLDED="true" ID="ID_1376369013" MODIFIED="1525124216355" TEXT="custom-ctor">
+<node CREATED="1522110531344" FOLDED="true" ID="ID_1376369013" MODIFIED="1533608416376" TEXT="custom-ctor">
 <node CREATED="1522112368219" ID="ID_774074460" MODIFIED="1522112375518" TEXT="konkreten Typ feststellen"/>
-<node CREATED="1522112376154" FOLDED="true" ID="ID_1394042003" MODIFIED="1525124215588" TEXT="f&#xfc;r diesen...">
+<node CREATED="1522112376154" FOLDED="true" ID="ID_1394042003" MODIFIED="1533608416062" TEXT="f&#xfc;r diesen...">
 <node CREATED="1522113449575" ID="ID_644735948" MODIFIED="1522113456734" TEXT="acquire Lock&lt;SUB&gt;"/>
 <node CREATED="1522112395280" ID="ID_995036578" MODIFIED="1522113339076" TEXT="Instantiierungs-Check">
 <richcontent TYPE="NOTE"><html>
@@ -30047,9 +30155,9 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522200092935" FOLDED="true" ID="ID_1314237888" MODIFIED="1531584014244" TEXT="Deleter-Behandlung">
+<node COLOR="#338800" CREATED="1522200092935" ID="ID_1314237888" MODIFIED="1533608414092" TEXT="Deleter-Behandlung">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1522200102534" FOLDED="true" ID="ID_284894079" MODIFIED="1525124216355" TEXT="bisher">
+<node CREATED="1522200102534" FOLDED="true" ID="ID_284894079" MODIFIED="1533608416377" TEXT="bisher">
 <node CREATED="1522200106373" ID="ID_1981188993" MODIFIED="1522200226028" TEXT="was die Factory zur&#xfc;ckliefert, wird nicht gemanaged">
 <icon BUILTIN="broken-line"/>
 </node>
@@ -30060,7 +30168,7 @@
 <icon BUILTIN="smily_bad"/>
 </node>
 </node>
-<node CREATED="1522200147696" FOLDED="true" ID="ID_929047067" MODIFIED="1525124216355" TEXT="gew&#xfc;nscht">
+<node CREATED="1522200147696" FOLDED="true" ID="ID_929047067" MODIFIED="1533608416379" TEXT="gew&#xfc;nscht">
 <icon BUILTIN="yes"/>
 <node COLOR="#338800" CREATED="1522200152927" ID="ID_326569334" MODIFIED="1522382081602" TEXT="keine Memory-leaks">
 <icon BUILTIN="button_ok"/>
@@ -30080,7 +30188,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522384902500" FOLDED="true" ID="ID_1741501987" MODIFIED="1531584014244" TEXT="Zugriff beim Herunterfahren">
+<node COLOR="#338800" CREATED="1522384902500" ID="ID_1741501987" MODIFIED="1533608414094" TEXT="Zugriff beim Herunterfahren">
 <arrowlink COLOR="#639d9e" DESTINATION="ID_1152640572" ENDARROW="Default" ENDINCLINATION="-89;0;" ID="Arrow_ID_1512382393" STARTARROW="None" STARTINCLINATION="28;-1;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522387798572" HGAP="35" ID="ID_1522844249" MODIFIED="1522387935592" TEXT="war ein &#xfc;briggebliebener Destruktor in einem Mock" VSHIFT="12">
@@ -30125,13 +30233,13 @@
 </node>
 <node COLOR="#338800" CREATED="1522334796724" ID="ID_1080992734" MODIFIED="1531584013626" TEXT="Funktoren zusammenf&#xfc;hren">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1522334843062" FOLDED="true" ID="ID_1526236017" MODIFIED="1531584014245" TEXT="DependencyFactory f&#xfc;r">
+<node COLOR="#338800" CREATED="1522334843062" ID="ID_1526236017" MODIFIED="1533608414095" TEXT="DependencyFactory f&#xfc;r">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522334805635" ID="ID_315782435" MODIFIED="1522384992864" TEXT="Erzeugungs-Funktor"/>
 <node CREATED="1522334818473" ID="ID_750129060" MODIFIED="1522334821036" TEXT="Deleter"/>
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 </node>
-<node COLOR="#338800" CREATED="1522334859291" FOLDED="true" ID="ID_1496044958" MODIFIED="1531584014246" TEXT="korrekt handhaben">
+<node COLOR="#338800" CREATED="1522334859291" ID="ID_1496044958" MODIFIED="1533608414096" TEXT="korrekt handhaben">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522334896942" ID="ID_1215786079" MODIFIED="1522382047552" TEXT="default-Fall">
 <icon BUILTIN="button_ok"/>
@@ -30139,9 +30247,9 @@
 <node COLOR="#338800" CREATED="1522334903741" ID="ID_1875541619" MODIFIED="1522382049855" TEXT="abstrakte Basisklasse">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1522381984647" FOLDED="true" ID="ID_136231234" MODIFIED="1525124216356" TEXT="Klasse ohne Default-ctor">
+<node COLOR="#338800" CREATED="1522381984647" FOLDED="true" ID="ID_136231234" MODIFIED="1533608416379" TEXT="Klasse ohne Default-ctor">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1522384796267" FOLDED="true" ID="ID_1913154173" MODIFIED="1525124215589" TEXT="Problem">
+<node CREATED="1522384796267" FOLDED="true" ID="ID_1913154173" MODIFIED="1533608416063" TEXT="Problem">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1522384813129" ID="ID_502713353" MODIFIED="1522384821715" TEXT="private mit Freunschaft"/>
 <node CREATED="1522384822583" ID="ID_1870041254" MODIFIED="1522384845999" TEXT="std::is_constructible&lt;X&gt; kann das nicht unterscheiden"/>
@@ -30157,10 +30265,10 @@
 <icon BUILTIN="button_ok"/>
 </node>
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-<node CREATED="1522367884794" FOLDED="true" ID="ID_42634215" MODIFIED="1531584014246" TEXT="Analyse der Schritte">
+<node CREATED="1522367884794" ID="ID_42634215" MODIFIED="1533608414097" TEXT="Analyse der Schritte">
 <icon BUILTIN="idea"/>
-<node CREATED="1522367595914" FOLDED="true" ID="ID_615466863" MODIFIED="1525124216356" TEXT="Use-cases">
-<node CREATED="1522367601081" FOLDED="true" ID="ID_1594593457" MODIFIED="1525124215589" TEXT="default">
+<node CREATED="1522367595914" FOLDED="true" ID="ID_615466863" MODIFIED="1533608416381" TEXT="Use-cases">
+<node CREATED="1522367601081" FOLDED="true" ID="ID_1594593457" MODIFIED="1533608416065" TEXT="default">
 <node CREATED="1522367513966" ID="ID_18197809" MODIFIED="1522381907638" TEXT="nominelle Target-Klasse">
 <icon BUILTIN="button_ok"/>
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@@ -30171,7 +30279,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
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-<node CREATED="1522367604945" FOLDED="true" ID="ID_681132036" MODIFIED="1525124215589" TEXT="Subclass">
+<node CREATED="1522367604945" FOLDED="true" ID="ID_681132036" MODIFIED="1533608416066" TEXT="Subclass">
 <node CREATED="1522367701660" ID="ID_381217567" MODIFIED="1522381919492" TEXT="Subklasse feststellen">
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@@ -30179,7 +30287,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
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-<node CREATED="1522367617999" FOLDED="true" ID="ID_1310241568" MODIFIED="1525124215589" TEXT="custom-Functor">
+<node CREATED="1522367617999" FOLDED="true" ID="ID_1310241568" MODIFIED="1533608416068" TEXT="custom-Functor">
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@@ -30191,7 +30299,7 @@
 </node>
 </node>
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-<node CREATED="1522367902872" FOLDED="true" ID="ID_272084666" MODIFIED="1525124216356" TEXT="grunds&#xe4;tzlich immer">
+<node CREATED="1522367902872" FOLDED="true" ID="ID_272084666" MODIFIED="1533608416382" TEXT="grunds&#xe4;tzlich immer">
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@@ -30210,7 +30318,7 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1525192054281" ID="ID_1450620535" MODIFIED="1525192075199" TEXT="#1142 initialisation of static template members">
 <icon BUILTIN="flag-yellow"/>
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-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1525192963192" FOLDED="true" ID="ID_1702928731" MODIFIED="1531584014246" TEXT="ungekl&#xe4;rt: AppState-Factory-ctor mehrfach aufrerufen">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1525192963192" ID="ID_1702928731" MODIFIED="1533608414099" TEXT="ungekl&#xe4;rt: AppState-Factory-ctor mehrfach aufrerufen">
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@@ -30266,7 +30374,7 @@
 <node COLOR="#338800" CREATED="1521790800253" ID="ID_878208550" MODIFIED="1521946968361" TEXT="Eigenes Kapitel zum Thema Double-Checked Locking">
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-<node COLOR="#338800" CREATED="1521790816937" FOLDED="true" ID="ID_776249726" MODIFIED="1531584014246" TEXT="Grenzziehung zur Architektur">
+<node COLOR="#338800" CREATED="1521790816937" ID="ID_776249726" MODIFIED="1533608414100" TEXT="Grenzziehung zur Architektur">
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@@ -30291,7 +30399,7 @@
 </node>
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-<node COLOR="#338800" CREATED="1521791034972" FOLDED="true" ID="ID_1629095174" MODIFIED="1531584014247" TEXT="&#xfc;berlegen, wo das Architektur-Thema dargestellt werden sollte">
+<node COLOR="#338800" CREATED="1521791034972" ID="ID_1629095174" MODIFIED="1533608414101" TEXT="&#xfc;berlegen, wo das Architektur-Thema dargestellt werden sollte">
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@@ -30335,7 +30443,7 @@
 <node COLOR="#338800" CREATED="1521419300765" ID="ID_417098537" MODIFIED="1522042501641" TEXT="DependencyFactory_test">
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 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1521419730442" FOLDED="true" HGAP="42" ID="ID_657803548" MODIFIED="1531584014247" TEXT="nach der Umstellung etwas straffen" VSHIFT="-13">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1521419730442" HGAP="42" ID="ID_657803548" MODIFIED="1533608414101" TEXT="nach der Umstellung etwas straffen" VSHIFT="-13">
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@@ -30347,7 +30455,7 @@
 <icon BUILTIN="button_ok"/>
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-<node CREATED="1521419624065" FOLDED="true" HGAP="29" ID="ID_477987875" MODIFIED="1531584014247" TEXT="weiterhin sinnvoll?" VSHIFT="14">
+<node CREATED="1521419624065" HGAP="29" ID="ID_477987875" MODIFIED="1533608414101" TEXT="weiterhin sinnvoll?" VSHIFT="14">
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@@ -30431,7 +30539,7 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522033578207" HGAP="18" ID="ID_252429770" MODIFIED="1525124215470" TEXT="Name f&#xfc;r Freunschaft+" VSHIFT="-20">
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-<node CREATED="1522033614743" FOLDED="true" ID="ID_1110690522" MODIFIED="1531584014247" TEXT="friend class lib::InstanceHolder&lt;TargetObj&gt;;">
+<node CREATED="1522033614743" ID="ID_1110690522" MODIFIED="1533608414101" TEXT="friend class lib::InstanceHolder&lt;TargetObj&gt;;">
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@@ -30439,7 +30547,7 @@
 <icon BUILTIN="smiley-angry"/>
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 </node>
-<node CREATED="1522033635991" FOLDED="true" ID="ID_321432260" MODIFIED="1531584014248" TEXT="k&#xf6;nnte das Depend selber sein?">
+<node CREATED="1522033635991" ID="ID_321432260" MODIFIED="1533608414102" TEXT="k&#xf6;nnte das Depend selber sein?">
 <icon BUILTIN="button_cancel"/>
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@@ -30551,7 +30659,7 @@
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-<node COLOR="#338800" CREATED="1521928978853" FOLDED="true" ID="ID_47671209" MODIFIED="1531584014248" TEXT="diese sollten auf Depend umgestellt werden">
+<node COLOR="#338800" CREATED="1521928978853" ID="ID_47671209" MODIFIED="1533608414103" TEXT="diese sollten auf Depend umgestellt werden">
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@@ -30575,7 +30683,7 @@
 <node CREATED="1522635366958" ID="ID_70940233" MODIFIED="1522639464220" TEXT="w&#xe4;re jetzt ebenfalls denkbar">
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 </node>
-<node COLOR="#338800" CREATED="1522638768719" FOLDED="true" ID="ID_1027038623" MODIFIED="1531584014249" TEXT="InterfaceFacadeLink">
+<node COLOR="#338800" CREATED="1522638768719" ID="ID_1027038623" MODIFIED="1533608414104" TEXT="InterfaceFacadeLink">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522638777486" ID="ID_1287650379" MODIFIED="1522638916886" TEXT="serivce-Handle"/>
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@@ -30584,7 +30692,7 @@
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 </node>
-<node CREATED="1522638812521" FOLDED="true" ID="ID_893221959" MODIFIED="1525124216356" TEXT="nur ein einziges mal verwendet">
+<node CREATED="1522638812521" FOLDED="true" ID="ID_893221959" MODIFIED="1533608416383" TEXT="nur ein einziges mal verwendet">
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@@ -30616,7 +30724,7 @@
 <icon BUILTIN="yes"/>
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-<node COLOR="#338800" CREATED="1522712059423" FOLDED="true" ID="ID_885178924" MODIFIED="1525124216356" TEXT="komplett auf lib::Depend umstellen">
+<node COLOR="#338800" CREATED="1522712059423" FOLDED="true" ID="ID_885178924" MODIFIED="1533608416384" TEXT="komplett auf lib::Depend umstellen">
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 <icon BUILTIN="messagebox_warning"/>
@@ -30630,7 +30738,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
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-<node COLOR="#338800" CREATED="1522638949038" FOLDED="true" ID="ID_1756362217" MODIFIED="1531584014249" TEXT="interfaceproxy - Accessor">
+<node COLOR="#338800" CREATED="1522638949038" ID="ID_1756362217" MODIFIED="1533608414106" TEXT="interfaceproxy - Accessor">
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 <icon BUILTIN="button_ok"/>
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@@ -30639,11 +30747,11 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522639301526" FOLDED="true" ID="ID_1959793943" MODIFIED="1531584014250" TEXT="InterfaceProxy umschreiben">
+<node COLOR="#338800" CREATED="1522639301526" ID="ID_1959793943" MODIFIED="1533608414107" TEXT="InterfaceProxy umschreiben">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522639313964" ID="ID_620355867" MODIFIED="1522639322758" TEXT="er soll sich in lib::Depend einklinken"/>
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-<node CREATED="1522640047991" FOLDED="true" ID="ID_965836148" MODIFIED="1525124216356" TEXT="wie funktioniert&apos;s?">
+<node CREATED="1522640047991" FOLDED="true" ID="ID_965836148" MODIFIED="1533608416387" TEXT="wie funktioniert&apos;s?">
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@@ -30661,20 +30769,20 @@
 <node CREATED="1522640127923" ID="ID_1407739777" MODIFIED="1522640137926" TEXT="dieser konkrete Proxy erbt von Holder"/>
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-<node CREATED="1522640235676" FOLDED="true" ID="ID_1807301195" MODIFIED="1525124215589" TEXT="der Holder hat statische open/close">
+<node CREATED="1522640235676" FOLDED="true" ID="ID_1807301195" MODIFIED="1533608416070" TEXT="der Holder hat statische open/close">
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-<node CREATED="1522640554305" FOLDED="true" ID="ID_1413272395" MODIFIED="1525124215589" TEXT="dieser ist ein RAII-Handle f&#xfc;r den Proxy">
+<node CREATED="1522640554305" FOLDED="true" ID="ID_1413272395" MODIFIED="1533608416071" TEXT="dieser ist ein RAII-Handle f&#xfc;r den Proxy">
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 </node>
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 </node>
-<node COLOR="#338800" CREATED="1522640617752" FOLDED="true" ID="ID_312762900" MODIFIED="1525124216356" TEXT="Plan zum Umschreiben">
+<node COLOR="#338800" CREATED="1522640617752" FOLDED="true" ID="ID_312762900" MODIFIED="1533608416388" TEXT="Plan zum Umschreiben">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1522640706787" FOLDED="true" ID="ID_1205995335" MODIFIED="1525124215589" TEXT="Idee-1">
+<node CREATED="1522640706787" FOLDED="true" ID="ID_1205995335" MODIFIED="1533608416074" TEXT="Idee-1">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1522640624319" ID="ID_448652627" MODIFIED="1522640718658" TEXT="den Holder umbauen">
 <icon BUILTIN="info"/>
@@ -30685,7 +30793,7 @@
 </node>
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 </node>
-<node CREATED="1522640758484" FOLDED="true" ID="ID_1080447818" MODIFIED="1525124215589" TEXT="Idee-2">
+<node CREATED="1522640758484" FOLDED="true" ID="ID_1080447818" MODIFIED="1533608416078" TEXT="Idee-2">
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@@ -30694,19 +30802,19 @@
 <node CREATED="1522640847752" ID="ID_951535107" MODIFIED="1522640870343" TEXT="Holder und Accessor f&#xe4;llt komplett weg">
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 </node>
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1522642882751" FOLDED="true" ID="ID_1084473697" MODIFIED="1525124215532" TEXT="Gute Idee -- zukunftsf&#xe4;hig">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1522642882751" FOLDED="true" ID="ID_1084473697" MODIFIED="1533608415728" TEXT="Gute Idee -- zukunftsf&#xe4;hig">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 <node CREATED="1522642898548" ID="ID_1128431348" MODIFIED="1522643775604" TEXT="InstanceHandle als Typ-Marker"/>
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 <node CREATED="1522642945462" ID="ID_1624080534" MODIFIED="1522643775604" TEXT="der konkrete Proxy k&#xf6;nnte per SWIG generiert werden"/>
 </node>
-<node CREATED="1522640881187" FOLDED="true" ID="ID_1419416708" MODIFIED="1525124215533" TEXT="Frage: wie konstruiert man einen Proxy">
+<node CREATED="1522640881187" FOLDED="true" ID="ID_1419416708" MODIFIED="1533608415730" TEXT="Frage: wie konstruiert man einen Proxy">
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 </node>
-<node COLOR="#338800" CREATED="1522641405299" FOLDED="true" ID="ID_676190433" MODIFIED="1525124215533" TEXT="Proxy">
+<node COLOR="#338800" CREATED="1522641405299" FOLDED="true" ID="ID_676190433" MODIFIED="1533608415734" TEXT="Proxy">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522641413586" FOLDED="true" ID="ID_1187300065" MODIFIED="1525124215518" TEXT="Anforderungen">
 <linktarget COLOR="#86d29d" DESTINATION="ID_1187300065" ENDARROW="Default" ENDINCLINATION="-35;65;" ID="Arrow_ID_1735914452" SOURCE="ID_1212106242" STARTARROW="None" STARTINCLINATION="-135;-67;"/>
@@ -31002,10 +31110,10 @@
 </node>
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-<node COLOR="#338800" CREATED="1522649565217" FOLDED="true" ID="ID_1192073765" MODIFIED="1525124216356" TEXT="Probleme bei der Realisierung">
+<node COLOR="#338800" CREATED="1522649565217" FOLDED="true" ID="ID_1192073765" MODIFIED="1533608416390" TEXT="Probleme bei der Realisierung">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522649583511" ID="ID_709785832" MODIFIED="1522649600993" TEXT="Instancehandle mu&#xdf; jetzt die Proxy-Implementierung sehen"/>
-<node CREATED="1522649601916" FOLDED="true" ID="ID_114261035" MODIFIED="1525124215589" TEXT="die beiden Seiten des Bindings sind damit fest verkoppelt">
+<node CREATED="1522649601916" FOLDED="true" ID="ID_114261035" MODIFIED="1533608416079" TEXT="die beiden Seiten des Bindings sind damit fest verkoppelt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31052,9 +31160,9 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522709654308" FOLDED="true" ID="ID_1059248114" MODIFIED="1525124216357" TEXT="bestehenden Code umschreiben">
+<node COLOR="#338800" CREATED="1522709654308" FOLDED="true" ID="ID_1059248114" MODIFIED="1533608416392" TEXT="bestehenden Code umschreiben">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1522709669498" FOLDED="true" ID="ID_9288802" MODIFIED="1525124215590" TEXT="alle bestehenden Proxies">
+<node COLOR="#338800" CREATED="1522709669498" FOLDED="true" ID="ID_9288802" MODIFIED="1533608416082" TEXT="alle bestehenden Proxies">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522635397309" ID="ID_590180071" MODIFIED="1522724921600" TEXT="SessionCommandService">
 <icon BUILTIN="button_ok"/>
@@ -31069,7 +31177,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522709729297" FOLDED="true" ID="ID_1293938610" MODIFIED="1525124215590" TEXT="Facade-Accessoren auf lib::Depend umstellen">
+<node COLOR="#338800" CREATED="1522709729297" FOLDED="true" ID="ID_1293938610" MODIFIED="1533608416085" TEXT="Facade-Accessoren auf lib::Depend umstellen">
 <arrowlink COLOR="#68baaa" DESTINATION="ID_1756362217" ENDARROW="Default" ENDINCLINATION="32;1321;" ID="Arrow_ID_1797728654" STARTARROW="None" STARTINCLINATION="-288;-420;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522635397309" ID="ID_883916833" MODIFIED="1522710489037" TEXT="SessionCommand">
@@ -31084,7 +31192,7 @@
 <node COLOR="#338800" CREATED="1522635450269" ID="ID_193152767" MODIFIED="1522710900353" TEXT="DummyPlayer">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1522711261733" FOLDED="true" ID="ID_1953483085" MODIFIED="1525124215533" TEXT="Play(Facade)">
+<node COLOR="#338800" CREATED="1522711261733" FOLDED="true" ID="ID_1953483085" MODIFIED="1533608415735" TEXT="Play(Facade)">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522711269948" ID="ID_153188000" MODIFIED="1522711287118" TEXT="h&#xe4;ngt aber an dem InterfaceFacadeLink">
 <icon BUILTIN="messagebox_warning"/>
@@ -31108,14 +31216,14 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522454023039" ID="ID_1828121921" MODIFIED="1525124215498" TEXT="Folge-Probleme">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1522454040500" FOLDED="true" ID="ID_1674154774" MODIFIED="1531584014251" TEXT="Architektur">
-<node CREATED="1522454061873" FOLDED="true" ID="ID_1012349550" MODIFIED="1525124216357" TEXT="unklare statische Abh&#xe4;ngigkeiten">
-<node CREATED="1522454074760" FOLDED="true" ID="ID_1884600051" MODIFIED="1525124215590" TEXT="ClassLock">
+<node CREATED="1522454040500" ID="ID_1674154774" MODIFIED="1533608414118" TEXT="Architektur">
+<node CREATED="1522454061873" FOLDED="true" ID="ID_1012349550" MODIFIED="1533608416393" TEXT="unklare statische Abh&#xe4;ngigkeiten">
+<node CREATED="1522454074760" FOLDED="true" ID="ID_1884600051" MODIFIED="1533608416086" TEXT="ClassLock">
 <linktarget COLOR="#8195ac" DESTINATION="ID_1884600051" ENDARROW="Default" ENDINCLINATION="-604;0;" ID="Arrow_ID_648096672" SOURCE="ID_1287049121" STARTARROW="None" STARTINCLINATION="175;-122;"/>
 <node CREATED="1522454289393" ID="ID_860238388" MODIFIED="1522454304036" TEXT="verwendet ein Meyers Singleton"/>
 <node CREATED="1522454304576" ID="ID_692796029" MODIFIED="1522454312395" TEXT="und damit statische Init"/>
 </node>
-<node COLOR="#338800" CREATED="1522454152941" FOLDED="true" ID="ID_1003385410" MODIFIED="1525124215590" TEXT="lib::Depend">
+<node COLOR="#338800" CREATED="1522454152941" FOLDED="true" ID="ID_1003385410" MODIFIED="1533608416089" TEXT="lib::Depend">
 <arrowlink COLOR="#487bba" DESTINATION="ID_399844845" ENDARROW="Default" ENDINCLINATION="237;509;" ID="Arrow_ID_1393532861" STARTARROW="None" STARTINCLINATION="733;-537;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522454265837" ID="ID_405478687" MODIFIED="1522454275983" TEXT="braucht ClassLock bis zum bitteren Ende"/>
@@ -31140,13 +31248,13 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1522454146645" FOLDED="true" ID="ID_818640049" MODIFIED="1525124215590" TEXT="Advice-System">
+<node CREATED="1522454146645" FOLDED="true" ID="ID_818640049" MODIFIED="1533608416091" TEXT="Advice-System">
 <linktarget COLOR="#7a8fa9" DESTINATION="ID_818640049" ENDARROW="Default" ENDINCLINATION="-384;-20;" ID="Arrow_ID_1167388040" SOURCE="ID_1527905225" STARTARROW="None" STARTINCLINATION="309;-116;"/>
 <icon BUILTIN="info"/>
 <node CREATED="1522454318558" ID="ID_65008261" MODIFIED="1522454338494" TEXT="braucht sicht selbst beim Runterfahren">
 <icon BUILTIN="smiley-oh"/>
 </node>
-<node CREATED="1522455443139" FOLDED="true" ID="ID_57531429" MODIFIED="1525124215533" TEXT="Pfad...">
+<node CREATED="1522455443139" FOLDED="true" ID="ID_57531429" MODIFIED="1533608415740" TEXT="Pfad...">
 <node CREATED="1522455359030" ID="ID_1748706225" MODIFIED="1522455463636" TEXT="~AdviceSystem"/>
 <node CREATED="1522455363486" ID="ID_1789501340" MODIFIED="1522455366137" TEXT="DelStash"/>
 <node CREATED="1522455375636" ID="ID_890323979" MODIFIED="1522455397132" TEXT="Provision&lt;X&gt;::releaseAdviceData"/>
@@ -31154,7 +31262,7 @@
 <node CREATED="1522455439131" ID="ID_1655592437" MODIFIED="1522455440982" TEXT="aSys().releaseBuffer(buff, siz)"/>
 <node CREATED="1522455488220" ID="ID_817525837" MODIFIED="1522455490927" TEXT="Tadaaaa!"/>
 </node>
-<node COLOR="#338800" CREATED="1522557127755" FOLDED="true" ID="ID_842175492" MODIFIED="1525124215533" TEXT="das ist grenzwertig">
+<node COLOR="#338800" CREATED="1522557127755" FOLDED="true" ID="ID_842175492" MODIFIED="1533608415742" TEXT="das ist grenzwertig">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522557139721" ID="ID_1248571887" MODIFIED="1522557151307" TEXT="es handelt sich um eine re-entrance">
@@ -31231,15 +31339,15 @@
 </node>
 </node>
 </node>
-<node CREATED="1522454344402" FOLDED="true" ID="ID_1823464628" MODIFIED="1525124216357" TEXT="Singletons">
+<node CREATED="1522454344402" FOLDED="true" ID="ID_1823464628" MODIFIED="1533608416394" TEXT="Singletons">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1522454381692" ID="ID_1785213595" MODIFIED="1522454381692" TEXT="wurden bisher praktisch gar nicht runtergefahren"/>
-<node CREATED="1522454384941" FOLDED="true" ID="ID_1849825340" MODIFIED="1525124215590" TEXT="zwar pro-Forma schon">
+<node CREATED="1522454384941" FOLDED="true" ID="ID_1849825340" MODIFIED="1533608416092" TEXT="zwar pro-Forma schon">
 <icon BUILTIN="idea"/>
 <node CREATED="1522454395011" ID="ID_1147769502" MODIFIED="1522454420012" TEXT="aber die Storage blieb stehen"/>
 <node CREATED="1522454407666" ID="ID_284304272" MODIFIED="1522454412948" TEXT="und so ist es nie aufgefallen"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1522455572377" FOLDED="true" ID="ID_995968267" MODIFIED="1525124215590" TEXT="Policy ist klar">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1522455572377" FOLDED="true" ID="ID_995968267" MODIFIED="1533608416094" TEXT="Policy ist klar">
 <icon BUILTIN="yes"/>
 <node CREATED="1522455589150" ID="ID_720232530" MODIFIED="1522455637085" TEXT="Kein Service darf aus dem dtor eine Dependency ziehen!">
 <icon BUILTIN="yes"/>
@@ -31249,7 +31357,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1522454132616" FOLDED="true" ID="ID_1054219137" MODIFIED="1525124216357" TEXT="brauchen wir einen Basis-Layer?">
+<node COLOR="#990000" CREATED="1522454132616" FOLDED="true" ID="ID_1054219137" MODIFIED="1533608416397" TEXT="brauchen wir einen Basis-Layer?">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1522455499003" ID="ID_323278727" MODIFIED="1522547122649" TEXT="vermutlich ja">
@@ -31258,14 +31366,14 @@
 <node COLOR="#338800" CREATED="1522547104318" ID="ID_1075985632" MODIFIED="1522547119436" TEXT="nein besser nicht">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1522455507937" FOLDED="true" ID="ID_1029197196" MODIFIED="1525124215590" TEXT="f&#xfc;r wen?">
+<node CREATED="1522455507937" FOLDED="true" ID="ID_1029197196" MODIFIED="1533608416095" TEXT="f&#xfc;r wen?">
 <linktarget COLOR="#512c6f" DESTINATION="ID_1029197196" ENDARROW="Default" ENDINCLINATION="-299;0;" ID="Arrow_ID_845867084" SOURCE="ID_22169859" STARTARROW="None" STARTINCLINATION="1419;0;"/>
 <node CREATED="1522455514361" ID="ID_1288380071" MODIFIED="1522455518148" TEXT="ClassLock"/>
 <node CREATED="1522455519448" ID="ID_77194477" MODIFIED="1522455527347" TEXT="Application-Object?"/>
 <node CREATED="1522455527838" ID="ID_483432379" MODIFIED="1522455530186" TEXT="Nobug?"/>
 </node>
-<node CREATED="1522455653525" FOLDED="true" ID="ID_1606025045" MODIFIED="1525124215590" TEXT="wie?">
-<node CREATED="1522455656181" FOLDED="true" ID="ID_1878626771" MODIFIED="1525124215533" TEXT="Schwartz-Counter">
+<node CREATED="1522455653525" FOLDED="true" ID="ID_1606025045" MODIFIED="1533608416097" TEXT="wie?">
+<node CREATED="1522455656181" FOLDED="true" ID="ID_1878626771" MODIFIED="1533608415744" TEXT="Schwartz-Counter">
 <linktarget COLOR="#b12341" DESTINATION="ID_1878626771" ENDARROW="Default" ENDINCLINATION="166;90;" ID="Arrow_ID_1822166267" SOURCE="ID_695551107" STARTARROW="None" STARTINCLINATION="385;46;"/>
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1522557054805" ID="ID_618759088" MODIFIED="1522557106032" TEXT="nein, besser gleich ganz wegwerfen">
@@ -31282,10 +31390,10 @@
 </node>
 </node>
 </node>
-<node CREATED="1522454162939" FOLDED="true" ID="ID_867445269" MODIFIED="1531584014251" TEXT="Subklassen-Konfig">
+<node CREATED="1522454162939" ID="ID_867445269" MODIFIED="1533608414127" TEXT="Subklassen-Konfig">
 <node CREATED="1522454176426" ID="ID_964380935" MODIFIED="1522454188772" TEXT="mu&#xdf; jetzt in den Provider-Scope"/>
 <node CREATED="1522454189359" ID="ID_1178508604" MODIFIED="1522454200306" TEXT="dieser ist meist nicht so offensichtlich klar"/>
-<node COLOR="#338800" CREATED="1522454200902" FOLDED="true" ID="ID_1367664577" MODIFIED="1525124216357" TEXT="ConfigRules">
+<node COLOR="#338800" CREATED="1522454200902" FOLDED="true" ID="ID_1367664577" MODIFIED="1533608416398" TEXT="ConfigRules">
 <linktarget COLOR="#8fbeb3" DESTINATION="ID_1367664577" ENDARROW="Default" ENDINCLINATION="-268;0;" ID="Arrow_ID_1637829369" SOURCE="ID_1789329281" STARTARROW="None" STARTINCLINATION="26;-32;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522454211157" ID="ID_1826864875" MODIFIED="1522454217672" TEXT="Subclass MockConfigRules"/>
@@ -31296,7 +31404,7 @@
 </node>
 <node COLOR="#338800" CREATED="1522018567685" ID="ID_1619059123" MODIFIED="1525124215499" TEXT="Frage: was ist mit AppState?">
 <icon BUILTIN="help"/>
-<node CREATED="1522018581283" FOLDED="true" ID="ID_132446315" MODIFIED="1531584014251" TEXT="macht es Sinn, das via Depend zug&#xe4;nglich zu machen?">
+<node CREATED="1522018581283" ID="ID_132446315" MODIFIED="1533608414128" TEXT="macht es Sinn, das via Depend zug&#xe4;nglich zu machen?">
 <icon BUILTIN="forward"/>
 <node CREATED="1522630308841" ID="ID_1688145864" MODIFIED="1522630349227" TEXT="Ja">
 <icon BUILTIN="ksmiletris"/>
@@ -31396,7 +31504,7 @@
 <node COLOR="#338800" CREATED="1522457377743" ID="ID_157728376" MODIFIED="1522628243174" TEXT="DefsManager_test">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1522630494375" FOLDED="true" ID="ID_787599487" MODIFIED="1531584014252" TEXT="PlacementHierarchy_test">
+<node COLOR="#338800" CREATED="1522630494375" ID="ID_787599487" MODIFIED="1533608414128" TEXT="PlacementHierarchy_test">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522632143740" ID="ID_1275561066" MODIFIED="1522632156461" TEXT="&lt;atomic&gt; includiert stdbool.h"/>
 <node CREATED="1522632157338" ID="ID_4818535" MODIFIED="1522632168332" TEXT="und der macht #define false false"/>
@@ -32449,10 +32557,10 @@
 </node>
 </node>
 <node CREATED="1495221220040" HGAP="43" ID="ID_782313223" MODIFIED="1533306068667" TEXT="Framework" VSHIFT="-20">
-<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-652;20;" ID="Arrow_ID_315633048" SOURCE="ID_1894791438" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
-<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-1088;-39;" ID="Arrow_ID_234165792" SOURCE="ID_433225506" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
 <linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-981;-106;" ID="Arrow_ID_1912776282" SOURCE="ID_1636078216" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
-<node CREATED="1533388030963" FOLDED="true" ID="ID_1973994334" MODIFIED="1533391711295" TEXT="main context">
+<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-1088;-39;" ID="Arrow_ID_234165792" SOURCE="ID_433225506" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
+<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-652;20;" ID="Arrow_ID_315633048" SOURCE="ID_1894791438" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
+<node CREATED="1533388030963" ID="ID_1973994334" MODIFIED="1533608414131" TEXT="main context">
 <node CREATED="1533388053839" ID="ID_970610402" MODIFIED="1533388063674" TEXT="abstrahierte &quot;main loop&quot;">
 <node CREATED="1533388065237" ID="ID_1853196275" MODIFIED="1533388071944" TEXT="es gibt einen default_main_context"/>
 <node CREATED="1533388072628" ID="ID_1382049092" MODIFIED="1533388077743" TEXT="dieser wird on demand erzeugt"/>
@@ -32471,8 +32579,7 @@
       ...und erzeugt diesen on demand auch neu
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1533388264550" ID="ID_32738634" MODIFIED="1533388282104" TEXT="gmain.c : g_source_attach"/>
 <node CREATED="1533388282692" ID="ID_1259525027" MODIFIED="1533388301765" TEXT="gmain.c : g_main_context_default"/>
 </node>
@@ -32488,7 +32595,7 @@
 </node>
 </node>
 <node CREATED="1495221242285" ID="ID_185528211" MODIFIED="1518487921099" TEXT="Applikation">
-<node CREATED="1495221272545" FOLDED="true" ID="ID_624250153" MODIFIED="1533325443038" TEXT="Gtk::Application">
+<node CREATED="1495221272545" ID="ID_624250153" MODIFIED="1533608414132" TEXT="Gtk::Application">
 <node CREATED="1495222327564" ID="ID_175461027" MODIFIED="1518487921099" TEXT="initialisiert Gio::Application"/>
 <node CREATED="1495222337235" ID="ID_348472460" MODIFIED="1518487921099" TEXT="setzt ggfs. die Applikations-ID"/>
 <node CREATED="1495223436241" ID="ID_1015366549" MODIFIED="1518487921099" TEXT="Application::run">
@@ -32529,7 +32636,7 @@
 </node>
 <node CREATED="1495221537366" ID="ID_381245884" MODIFIED="1518487921099" TEXT="stellt eine dBus-Verbindung bereit"/>
 <node CREATED="1495221546252" ID="ID_771692992" MODIFIED="1518487921099" TEXT="erbt von Gio::ActionGroup und ActionMap"/>
-<node CREATED="1533307013028" FOLDED="true" HGAP="32" ID="ID_1511454400" MODIFIED="1533325409236" TEXT="on activation" VSHIFT="16">
+<node CREATED="1533307013028" HGAP="32" ID="ID_1511454400" MODIFIED="1533608414135" TEXT="on activation" VSHIFT="16">
 <node CREATED="1533307054478" ID="ID_1200897297" MODIFIED="1533307059929" TEXT="g_application_activate">
 <node CREATED="1533307252691" ID="ID_11609503" MODIFIED="1533307276116" TEXT="gapplication.c (ca line 2220)"/>
 <node CREATED="1533307297630" ID="ID_312502406" MODIFIED="1533307298225" TEXT="g_signal_emit (application, g_application_signals[SIGNAL_ACTIVATE], 0)"/>
@@ -32551,8 +32658,7 @@
       welche ggfs C++ - Exceptions f&#228;ngt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1533307599332" ID="ID_1228966939" MODIFIED="1533307626966" TEXT="aufgerufen von g_application_run">
 <arrowlink DESTINATION="ID_1602611708" ENDARROW="Default" ENDINCLINATION="262;0;" ID="Arrow_ID_1688106140" STARTARROW="None" STARTINCLINATION="-50;95;"/>
@@ -32584,8 +32690,7 @@
       <i>Nur</i>&#160;das ist der Grund. Es <i>geht gar nicht</i>&#160;um die Event-Loop
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#949fb4" DESTINATION="ID_1806268533" ENDARROW="Default" ENDINCLINATION="-1845;-608;" ID="Arrow_ID_1146394851" SOURCE="ID_1211339520" STARTARROW="None" STARTINCLINATION="-474;0;"/>
 <icon BUILTIN="idea"/>
 </node>
@@ -32624,8 +32729,7 @@
       nicht durch <b>gtk_main</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32643,13 +32747,12 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
 </node>
-<node CREATED="1495223467588" FOLDED="true" HGAP="27" ID="ID_666842762" MODIFIED="1533325417082" TEXT="run" VSHIFT="12">
+<node CREATED="1495223467588" HGAP="27" ID="ID_666842762" MODIFIED="1533608414137" TEXT="run" VSHIFT="12">
 <icon BUILTIN="back"/>
 <node CREATED="1533306448070" ID="ID_1602611708" MODIFIED="1533307626966" TEXT="g_application_run(gobj(), argc, argv)">
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@@ -32667,8 +32770,7 @@
       beachte: <b>ruft nicht gtk_main</b>&#160;sondern macht das &#196;quivalent
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1495224012668" ID="ID_566886010" MODIFIED="1518487921099" TEXT="Event-Loop">
@@ -32688,7 +32790,7 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1495224595638" ID="ID_1774384379" MODIFIED="1518487921099" TEXT="@deprecated">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1495224609188" FOLDED="true" ID="ID_1615155508" MODIFIED="1533325432144">
+<node CREATED="1495224609188" ID="ID_1615155508" MODIFIED="1533608414139">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -32705,7 +32807,7 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1615155508" ENDARROW="Default" ENDINCLINATION="-27;-158;" ID="Arrow_ID_152226640" SOURCE="ID_1085605910" STARTARROW="None" STARTINCLINATION="-209;0;"/>
 <node CREATED="1495224862227" ID="ID_762530588" MODIFIED="1518487921099" TEXT="init_gtkmm_internals"/>
 <node CREATED="1495224890119" ID="ID_137730290" MODIFIED="1518487921099" TEXT="statische funktion"/>
-<node CREATED="1532795620784" FOLDED="true" ID="ID_1850885017" MODIFIED="1533319255913" TEXT="gtk_init">
+<node CREATED="1532795620784" ID="ID_1850885017" MODIFIED="1533608414140" TEXT="gtk_init">
 <linktarget COLOR="#87a8bf" DESTINATION="ID_1850885017" ENDARROW="Default" ENDINCLINATION="-195;-45;" ID="Arrow_ID_960670945" SOURCE="ID_377749143" STARTARROW="None" STARTINCLINATION="416;0;"/>
 <icon BUILTIN="back"/>
 <node CREATED="1532796724776" ID="ID_685469322" MODIFIED="1532796729971" TEXT="bleibt weiterhin bestehen"/>
@@ -32766,8 +32868,7 @@
       }
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 <node CREATED="1533305661254" ID="ID_1064217503" MODIFIED="1533305671871" TEXT="parse commandline">
 <node CREATED="1533305895966" ID="ID_1828704033" MODIFIED="1533305900774" TEXT="init gettext"/>
@@ -32781,7 +32882,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1532795594468" FOLDED="true" ID="ID_681479502" MODIFIED="1533320812539" TEXT="Main::init_gtkmm_internals">
+<node CREATED="1532795594468" ID="ID_681479502" MODIFIED="1533608414142" TEXT="Main::init_gtkmm_internals">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32848,8 +32949,7 @@
       }
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#679cc6" DESTINATION="ID_681479502" ENDARROW="Default" ENDINCLINATION="-182;-16;" ID="Arrow_ID_1451320473" SOURCE="ID_1106606369" STARTARROW="None" STARTINCLINATION="273;0;"/>
 <icon BUILTIN="info"/>
 <node CREATED="1532794577245" ID="ID_1061673956" MODIFIED="1532794580305" TEXT="was macht das?">
@@ -32888,7 +32988,7 @@
 </node>
 </node>
 <node CREATED="1495224625466" ID="ID_668309036" MODIFIED="1533325422859" TEXT="run">
-<node CREATED="1495224647071" FOLDED="true" ID="ID_660577000" MODIFIED="1533325424496" TEXT="gtk_main">
+<node CREATED="1495224647071" ID="ID_660577000" MODIFIED="1533608414143" TEXT="gtk_main">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1495224649943" ID="ID_1753452940" MODIFIED="1518487921099" TEXT="g_main_loop_run">
 <node CREATED="1495224690714" ID="ID_355427981" MODIFIED="1518487921099" TEXT="g_main_context_iterate">
@@ -32922,8 +33022,7 @@
       aber macht in etwa die gleichen Operationen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1495225050138" ID="ID_1077152710" MODIFIED="1518487921099" TEXT="gtk_main beruht heute auf Gio">
 <richcontent TYPE="NOTE"><html>
@@ -33201,7 +33300,7 @@
 </html></richcontent>
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1477841687997" FOLDED="true" ID="ID_1267996486" MODIFIED="1531584014252" TEXT="explicitly by code">
+<node CREATED="1477841687997" ID="ID_1267996486" MODIFIED="1533608414144" TEXT="explicitly by code">
 <node CREATED="1477841706107" ID="ID_1685967940" MODIFIED="1518487921100" TEXT="use get_value() from adjustment"/>
 <node CREATED="1477841728496" ID="ID_935017463" MODIFIED="1518487921100" TEXT="because this represents coord. of visible viewport"/>
 <node CREATED="1477841753180" ID="ID_501431504" MODIFIED="1518487921100" TEXT="max(value) + viewport-size == canvas size">
@@ -33219,7 +33318,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1477841809741" FOLDED="true" ID="ID_1400891730" MODIFIED="1525124216357" TEXT="context-&gt;translate">
+<node CREATED="1477841809741" FOLDED="true" ID="ID_1400891730" MODIFIED="1533608416399" TEXT="context-&gt;translate">
 <node CREATED="1477841816516" ID="ID_642580279" MODIFIED="1518487921100" TEXT="by -value"/>
 <node CREATED="1477841842512" ID="ID_1549119493" MODIFIED="1518487921100" TEXT="allows us to use absolute coords."/>
 <node CREATED="1477841854807" ID="ID_1202368941" MODIFIED="1518487921100" TEXT="clipping happens automatically"/>
@@ -33247,11 +33346,11 @@
 <node CREATED="1478032584364" ID="ID_1961636905" MODIFIED="1518487921100" TEXT="need to find the right signal">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1478032598165" FOLDED="true" ID="ID_275509060" MODIFIED="1531584014253" TEXT="need to get foreach working">
+<node CREATED="1478032598165" ID="ID_275509060" MODIFIED="1533608414145" TEXT="need to get foreach working">
 <icon BUILTIN="yes"/>
 <node CREATED="1478032633704" ID="ID_1067159761" MODIFIED="1518487921101" TEXT="Hint: show_all_children"/>
 <node CREATED="1478032642310" ID="ID_246127915" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-containers.html.en" MODIFIED="1518487921101" TEXT="Tutorial: custom container"/>
-<node CREATED="1478037794935" FOLDED="true" HGAP="41" ID="ID_614099643" MODIFIED="1525124216357" TEXT="geht doch" VSHIFT="38">
+<node CREATED="1478037794935" FOLDED="true" HGAP="41" ID="ID_614099643" MODIFIED="1533608416400" TEXT="geht doch" VSHIFT="38">
 <icon BUILTIN="ksmiletris"/>
 <node CREATED="1478037802776" ID="ID_1706111079" MODIFIED="1518487921101" TEXT="keine Ahnung warums neulich einen SEGFAULT gab"/>
 <node CREATED="1478037818037" ID="ID_1257597772" MODIFIED="1518487921101" TEXT="wichtig: Funktor inline bestehen lassen"/>
@@ -33260,10 +33359,10 @@
 </node>
 </node>
 </node>
-<node CREATED="1478037888539" FOLDED="true" ID="ID_1261247197" MODIFIED="1531584014254" TEXT="wie">
+<node CREATED="1478037888539" ID="ID_1261247197" MODIFIED="1533608414146" TEXT="wie">
 <icon BUILTIN="idea"/>
 <node CREATED="1478037893658" ID="ID_1711061664" MODIFIED="1518487921101" TEXT="trigger-Variable"/>
-<node CREATED="1478037899458" FOLDED="true" ID="ID_132096735" MODIFIED="1525124216357" TEXT="im on_draw()-Callback">
+<node CREATED="1478037899458" FOLDED="true" ID="ID_132096735" MODIFIED="1533608416401" TEXT="im on_draw()-Callback">
 <node CREATED="1478037908465" ID="ID_1414994452" MODIFIED="1518487921101" TEXT="erst hier sind die Allokationen gesetzt"/>
 <node CREATED="1478037916303" ID="ID_1781865207" MODIFIED="1518487921101" TEXT="konnte keine anderen sinnvollen callbacks finden">
 <richcontent TYPE="NOTE"><html>

From 0c8151cb2f6d26b1920011298d01525a50549377 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 9 Aug 2018 01:23:20 +0200
Subject: [PATCH 002/178] NotificationDisplay: decide upon the architecture for
 handling notification messages (#1102)

 * have a dedicated "information hub" controller, which acts a receiver of "error log messages" on the UI-Bus
 * let that controller in turn allocate an apropriate view on demand
---
 src/gui/ctrl/notification-hub.hpp |  81 ++++++++++
 src/gui/interact/wizard.cpp       |   1 +
 src/gui/interact/wizard.hpp       |   6 +-
 wiki/thinkPad.ichthyo.mm          | 259 +++++++++++++++++++++++-------
 4 files changed, 288 insertions(+), 59 deletions(-)
 create mode 100644 src/gui/ctrl/notification-hub.hpp

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
new file mode 100644
index 000000000..0676f742e
--- /dev/null
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -0,0 +1,81 @@
+/*
+  NOTIFICATION-HUB.hpp  -  receive and reroute notification messages
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file notification-hub.hpp
+ ** Controller to receive and handle notification messages for the user.
+ ** This component is addressed in order to show error, warning and notification messages
+ ** in the UI. It is responsible for maintaining a local log of these messages, and to
+ ** allocate an appropriate display widgets, to show such notifications asynchronously.
+ ** On first use, an InfoboxPanel is allocated to hold an ErrorlogWidget for presentation
+ ** of those messages
+ ** 
+ ** @see error-log-widget.hpp
+ ** @see notification-service.hpp
+ */
+
+
+#ifndef GUI_CTRL_NOTIFICATION_HUB_H
+#define GUI_CTRL_NOTIFICATION_HUB_H
+
+#include "gui/gtk-base.hpp"
+#include "lib/nocopy.hpp"
+
+#include <memory>
+#include <list>
+
+
+namespace gui {
+namespace workspace { class WorkspaceWindow; }
+namespace ctrl {
+  
+  
+  using std::list;
+  
+  
+  
+  /**
+   * Service to receive and display error, warning and notification messages.
+   * These are sent over the UI-Bus through the NotificationService; after receiving
+   * such a message, this controller ensures to display the message and altert the
+   * user, while not blocking the overall UI. 
+   */
+  class NotificationHub
+    : util::NonCopyable
+    {
+      
+      
+    public:
+      NotificationHub ();
+      
+    private:
+      
+    };
+  
+  
+  
+  /** */
+  
+  
+  
+}}// namespace gui::ctrl
+#endif /*GUI_CTRL_NOTIFICATION_HUB_H*/
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 8585092fa..7996eb744 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -33,6 +33,7 @@
 #include "gui/interact/wizard.hpp"
 #include "gui/interact/spot-locator.hpp"
 #include "gui/workspace/workspace-window.hpp"
+#include "gui/ctrl/notification-hub.hpp"
 #include "gui/ctrl/global-ctx.hpp"
 #include "lib/format-string.hpp"
 //#include "lib/util.hpp"
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 0d541616b..2d12f9733 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -46,16 +46,17 @@
 #include "lib/nocopy.hpp"
 
 //#include <string>
-//#include <memory>
+#include <memory>
 
 
 namespace gui {
 namespace ctrl {
   class GlobalCtx;
+  class NotificationHub;
 }
 namespace interact {
   
-//  using std::unique_ptr;
+  using std::unique_ptr;
 //  using std::string;
   
 //  class GlobalCtx;
@@ -73,6 +74,7 @@ namespace interact {
     : util::NonCopyable
     {
       ctrl::GlobalCtx& globalCtx_;
+      unique_ptr<ctrl::NotificationHub> notificationHub_;
     
     public:
       Wizard (ctrl::GlobalCtx&);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 59bc81953..94882dfe8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -949,6 +949,12 @@
 </html></richcontent>
 <arrowlink COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" STARTARROW="None" STARTINCLINATION="808;0;"/>
 </node>
+<node CREATED="1533688453675" ID="ID_528918224" MODIFIED="1533688773500" TEXT="l&#xe4;ngerfristige L&#xf6;sung">
+<arrowlink COLOR="#9c95b1" DESTINATION="ID_1972484306" ENDARROW="Default" ENDINCLINATION="-3826;-1250;" ID="Arrow_ID_1735504887" STARTARROW="None" STARTINCLINATION="2269;1167;"/>
+<node CREATED="1533688464386" ID="ID_1583348838" MODIFIED="1533688484834" TEXT="Wizard erzeugt NotificationController"/>
+<node CREATED="1533688486631" ID="ID_1186891962" MODIFIED="1533688503856" TEXT="dieser alloziert bei Bedarf ein Anzeige-Widget"/>
+<node CREATED="1533688504805" ID="ID_882148786" MODIFIED="1533688519238" TEXT="welches dann in das Infobox-Panel platziert wird"/>
+</node>
 </node>
 <node CREATED="1504203511199" ID="ID_1027795869" MODIFIED="1518487921049" TEXT="Nachricht per UI-Bus senden"/>
 </node>
@@ -1463,6 +1469,27 @@
 <node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1533608441262" TEXT="ein Widget im UI reagiert">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1533402876381" TEXT="fest verdrahtete ID">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1533688905326" ID="ID_709974587" MODIFIED="1533688913192" TEXT="geh&#xf6;rt dem NotificationController"/>
+<node CREATED="1533688913996" ID="ID_33570780" MODIFIED="1533688928765">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <i>das</i>&#160;ist schon die endg&#252;ltige L&#246;sung
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1533688935962" ID="ID_1996006263" MODIFIED="1533688943780" TEXT="NotificationController">
+<node CREATED="1533688944816" ID="ID_1273458647" MODIFIED="1533688952787" TEXT="wird vom Wizard gemanagt"/>
+<node CREATED="1533688953399" ID="ID_1850034653" MODIFIED="1533689013147" TEXT="belegt ein Display-widget">
+<arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-28;-42;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
+</node>
+</node>
 </node>
 <node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
@@ -1480,6 +1507,13 @@
     </p>
   </body>
 </html></richcontent>
+<node CREATED="1533688853229" ID="ID_396920290" MODIFIED="1533689013147" TEXT="der NotificationController im Wizard erzeugt es">
+<linktarget COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-28;-42;" ID="Arrow_ID_729082861" SOURCE="ID_1850034653" STARTARROW="None" STARTINCLINATION="101;-7;"/>
+</node>
+<node CREATED="1533688860812" ID="ID_1631735052" MODIFIED="1533688874622" TEXT="direkt im aktiven WorkspaceWindow -&gt; PanelManager"/>
+<node CREATED="1533688875242" ID="ID_708108999" MODIFIED="1533688887596" TEXT="solange bis Panel-Management umgebaut wird">
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 <node CREATED="1533607995396" ID="ID_806494084" MODIFIED="1533608457039" TEXT="wieder das Problem: wie bekommt man&apos;s">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533608171186" ID="ID_1446703192" MODIFIED="1533608449611" TEXT="#1104 how to instruct actions through panels">
@@ -1502,8 +1536,7 @@
       und da&#223; man ihn via <b>InteractionDirector</b>&#160;erreicht
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1533608609479" ID="ID_1375309708" MODIFIED="1533608624410" TEXT="Erzeugung">
 <node CREATED="1533608626061" ID="ID_401916400" MODIFIED="1533608643287" TEXT="entweder aufgrund so einer Anfrage"/>
@@ -1560,6 +1593,87 @@
 </node>
 </node>
 </node>
+<node CREATED="1533689031860" ID="ID_657232437" MODIFIED="1533689036552" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1533689046050" ID="ID_32330448" MODIFIED="1533689051525" TEXT="ErrorLog-Widget">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1533689061409" TEXT="InfoboxPanel anlegen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1533689296703" TEXT="NotificationController im Wizzard ansiedeln">
+<icon BUILTIN="full-1"/>
+<node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1533768810140" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
+<icon BUILTIN="help"/>
+<node CREATED="1533768892227" ID="ID_1131924142" MODIFIED="1533768930833" TEXT="ja, macht Sinn">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      weil so sichergestellt ist, da&#223; er stets existiert,
+    </p>
+    <p>
+      und er trotzdem vom konkreten Widget entkoppelt bleibt
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1533768947198">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      besserer Name: <b>NotificationHub</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1533769126436" ID="ID_1000961938" MODIFIED="1533769129591" TEXT="wohin?">
+<node CREATED="1533769130987" ID="ID_220812854" MODIFIED="1533769163306" TEXT="ctrl">
+<icon BUILTIN="forward"/>
+</node>
+<node CREATED="1533769133802" ID="ID_643904873" MODIFIED="1533769166022" TEXT="interact">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1533769137338" ID="ID_918339492" MODIFIED="1533769168793" TEXT="workspace">
+<icon BUILTIN="button_cancel"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1533689299058" TEXT="mit Bus verdrahten und ID global konstant definieren">
+<icon BUILTIN="full-2"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1533689301486" TEXT="Empfangs-Logik im NotificationController">
+<icon BUILTIN="full-3"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1533689143685" TEXT="View belegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1533689142951" TEXT="mit close-signal verdrahten">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1533689142190" TEXT="status-Flag">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1533689307645" TEXT="in NotificationService integrieren">
+<icon BUILTIN="full-4"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1533689310654" TEXT="Pling! -Button">
+<icon BUILTIN="full-5"/>
+<node CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1533689242460" TEXT="in der Test-Timeline"/>
+<node CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1533689254514" TEXT="triggert Dummy-Command"/>
+<node CREATED="1533689255174" ID="ID_821013695" MODIFIED="1533689263657" TEXT="dieses ruft die Notification_Facade auf"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -3666,6 +3780,7 @@
 <node CREATED="1486943969999" ID="ID_499822898" MODIFIED="1518487921063" TEXT="Meta-Belange">
 <node CREATED="1486943974590" ID="ID_233678784" MODIFIED="1518487921063" TEXT="Hilfe"/>
 <node CREATED="1486944977005" ID="ID_1548991554" MODIFIED="1518487921063" TEXT="Wizzards"/>
+<node CREATED="1533687508760" ID="ID_1331912107" MODIFIED="1533687523000" TEXT="Fehlerlog (notification display)"/>
 <node CREATED="1486943976942" ID="ID_1215823743" MODIFIED="1518487921063" TEXT="Navigation">
 <node CREATED="1486944958215" ID="ID_175734210" MODIFIED="1518487921063" TEXT="ist wohl ein eigener Controller"/>
 <node CREATED="1486944947297" ID="ID_572583322" MODIFIED="1518487921063" TEXT="h&#xe4;ngt aber mit InteractionDirector zusammen"/>
@@ -4303,7 +4418,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1506181068556" ID="ID_749871444" MODIFIED="1531584013543" TEXT="UICoord">
+<node COLOR="#338800" CREATED="1506181068556" FOLDED="true" ID="ID_749871444" MODIFIED="1533685036994" TEXT="UICoord">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1506181721910" ID="ID_1680105436" MODIFIED="1515555740881" TEXT="Folge von Symbolen">
 <icon BUILTIN="button_ok"/>
@@ -4463,7 +4578,7 @@
 </html></richcontent>
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1508537057661" ID="ID_1582824657" MODIFIED="1509329323916" TEXT="was hei&#xdf;t &quot;covern&quot;?">
+<node CREATED="1508537057661" FOLDED="true" ID="ID_1582824657" MODIFIED="1533685052776" TEXT="was hei&#xdf;t &quot;covern&quot;?">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1508538092061" ID="ID_731131821" MODIFIED="1508538096663" TEXT="komplett/partiell?"/>
@@ -4476,7 +4591,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1509323422183" ID="ID_1262448971" MODIFIED="1531584013551" TEXT="feine Punkte...">
+<node CREATED="1509323422183" FOLDED="true" ID="ID_1262448971" MODIFIED="1533685054986" TEXT="feine Punkte...">
 <icon BUILTIN="yes"/>
 <node CREATED="1509323432989" ID="ID_1373680102" MODIFIED="1509323467821" TEXT="per default nur bei expliziten Pfaden">
 <node CREATED="1509323478248" ID="ID_101102957" MODIFIED="1509323487630" TEXT="vollst&#xe4;ndig (f&#xe4;ngt mit Window an)"/>
@@ -4597,7 +4712,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1508537087378" ID="ID_548549576" MODIFIED="1515209423835" TEXT="Wildcards interpolieren">
+<node COLOR="#338800" CREATED="1508537087378" FOLDED="true" ID="ID_548549576" MODIFIED="1533685056730" TEXT="Wildcards interpolieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514328942052" ID="ID_638910432" MODIFIED="1514328949331" TEXT="&#xbb;pathResolution&#xab;"/>
 <node CREATED="1514328906513" ID="ID_627709808" MODIFIED="1514328914500" TEXT="Matching-Algo mit Backtracking"/>
@@ -4724,7 +4839,7 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1508539143849" ID="ID_1632791283" MODIFIED="1531584013552" TEXT="path-resolution">
+<node COLOR="#338800" CREATED="1508539143849" FOLDED="true" ID="ID_1632791283" MODIFIED="1533685063775" TEXT="path-resolution">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1508539152568" ID="ID_153711822" MODIFIED="1515120963483" TEXT="Beschreibung">
 <icon BUILTIN="button_ok"/>
@@ -4809,7 +4924,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1508539191283" ID="ID_1571889765" MODIFIED="1531584013553" TEXT="anchor">
+<node COLOR="#338800" CREATED="1508539191283" FOLDED="true" ID="ID_1571889765" MODIFIED="1533685065286" TEXT="anchor">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1508540643163" ID="ID_600567923" MODIFIED="1515287569776" TEXT="trivial: Anker-Literal setzen">
 <icon BUILTIN="button_ok"/>
@@ -4832,7 +4947,7 @@
 </node>
 <node COLOR="#338800" CREATED="1508539195258" ID="ID_1044429952" MODIFIED="1525124214766" TEXT="cover">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1508540823475" ID="ID_793410656" MODIFIED="1531584013556" TEXT="path-resolution ausf&#xfc;hren">
+<node COLOR="#338800" CREATED="1508540823475" FOLDED="true" ID="ID_793410656" MODIFIED="1533685069127" TEXT="path-resolution ausf&#xfc;hren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1509475490890" ID="ID_1616720086" MODIFIED="1518487921065" TEXT="rekursiv"/>
 <node CREATED="1509475495057" ID="ID_27489504" MODIFIED="1518487921065" TEXT="Aufruf mit ResolutionState"/>
@@ -9203,7 +9318,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1508540835505" ID="ID_191493714" MODIFIED="1518487921066" TEXT="Zustand">
+<node COLOR="#338800" CREATED="1508540835505" FOLDED="true" ID="ID_191493714" MODIFIED="1533685070973" TEXT="Zustand">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1514748438984" ID="ID_84241950" MODIFIED="1518487921066" TEXT="reflektiert letzte L&#xf6;sung"/>
 <node CREATED="1514748445520" ID="ID_728061293" MODIFIED="1518487921066" TEXT="*this = move (Coverage)"/>
@@ -9234,7 +9349,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1518052051947" ID="ID_1272905286" MODIFIED="1531584013557" TEXT="coverPartially">
+<node COLOR="#338800" CREATED="1518052051947" FOLDED="true" ID="ID_1272905286" MODIFIED="1533685073389" TEXT="coverPartially">
 <linktarget COLOR="#50546a" DESTINATION="ID_1272905286" ENDARROW="Default" ENDINCLINATION="394;1164;" ID="Arrow_ID_396720500" SOURCE="ID_1447232325" STARTARROW="None" STARTINCLINATION="1558;-33;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1518052100828" ID="ID_1400256094" MODIFIED="1518143014344" TEXT="funktioniert analog zu cover()">
@@ -9248,7 +9363,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1515451105808" ID="ID_1323377531" MODIFIED="1531584013558" TEXT="extend">
+<node COLOR="#338800" CREATED="1515451105808" FOLDED="true" ID="ID_1323377531" MODIFIED="1533685074917" TEXT="extend">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1515451117055" ID="ID_602743049" MODIFIED="1515451126326" TEXT="durch explizit gegebenes Suffix">
 <icon BUILTIN="button_ok"/>
@@ -9375,7 +9490,7 @@
 </node>
 <node CREATED="1515885720655" ID="ID_1092683882" MODIFIED="1533608413665" TEXT="b&#xfc;ndelt low-level-Zugang">
 <linktarget COLOR="#8c98a0" DESTINATION="ID_1092683882" ENDARROW="Default" ENDINCLINATION="-155;0;" ID="Arrow_ID_1761525173" SOURCE="ID_150080053" STARTARROW="None" STARTINCLINATION="-156;6;"/>
-<node CREATED="1515885728374" FOLDED="true" ID="ID_152777185" MODIFIED="1533608416167" TEXT="Bezug auf GlobalCtx">
+<node CREATED="1515885728374" ID="ID_152777185" MODIFIED="1533685424812" TEXT="Bezug auf GlobalCtx">
 <node CREATED="1515885839951" ID="ID_123309845" MODIFIED="1518487921066" TEXT="f&#xfc;r WindowLocator"/>
 <node CREATED="1515885847767" ID="ID_1781347382" MODIFIED="1518487921066" TEXT="f&#xfc;r PanelManager"/>
 <node CREATED="1515885855014" ID="ID_1634512088" MODIFIED="1518487921066" TEXT="f&#xfc;r LocationQuery">
@@ -9536,7 +9651,7 @@
 <node COLOR="#338800" CREATED="1515631646108" ID="ID_1553855476" MODIFIED="1518840394020" TEXT="UICoordResolver erzeugen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1515979648475" HGAP="38" ID="ID_350272872" MODIFIED="1529076566052" TEXT="Funktionsweise der &quot;Resolution&quot; kl&#xe4;ren" VSHIFT="1">
+<node COLOR="#338800" CREATED="1515979648475" FOLDED="true" HGAP="38" ID="ID_350272872" MODIFIED="1533685125752" TEXT="Funktionsweise der &quot;Resolution&quot; kl&#xe4;ren" VSHIFT="1">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1515980158112" ID="ID_1744041635" MODIFIED="1522939070606" TEXT="der Reihe nach pr&#xfc;fen">
 <icon BUILTIN="info"/>
@@ -10239,7 +10354,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1517013926947" HGAP="247" ID="ID_1823688859" MODIFIED="1529076591824" TEXT="fehlende Implementierung..." VSHIFT="26">
+<node COLOR="#338800" CREATED="1517013926947" HGAP="247" ID="ID_1823688859" MODIFIED="1533685136952" TEXT="fehlende Implementierung..." VSHIFT="26">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517013976676" ID="ID_614348470" MODIFIED="1533608413693" TEXT="&quot;elided&quot; als Wildcard behandeln">
 <icon BUILTIN="button_ok"/>
@@ -11275,7 +11390,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1523117208251" HGAP="27" ID="ID_1210359211" MODIFIED="1531584013574" TEXT="ist das nicht furchbar verschwenderisch...?" VSHIFT="4">
+<node COLOR="#435e98" CREATED="1523117208251" FOLDED="true" HGAP="27" ID="ID_1210359211" MODIFIED="1533685181871" TEXT="ist das nicht furchbar verschwenderisch...?" VSHIFT="4">
 <linktarget COLOR="#abc5e4" DESTINATION="ID_1210359211" ENDARROW="Default" ENDINCLINATION="-217;-87;" ID="Arrow_ID_1226100946" SOURCE="ID_1972679538" STARTARROW="None" STARTINCLINATION="-187;427;"/>
 <icon BUILTIN="help"/>
 <node CREATED="1523117293583" ID="ID_1129944871" MODIFIED="1523117297666" TEXT="schrittweise...">
@@ -11368,7 +11483,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354420343" ID="ID_17801598" MODIFIED="1519354425479" TEXT="Varianten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354420343" HGAP="28" ID="ID_17801598" MODIFIED="1533685336238" TEXT="Varianten" VSHIFT="21">
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1519354443485" ID="ID_1474832227" MODIFIED="1533608413747" TEXT="always create">
 <icon BUILTIN="flag-yellow"/>
@@ -11378,7 +11493,7 @@
 <node CREATED="1519354813458" ID="ID_168710453" MODIFIED="1519354818789" TEXT="beiseite schieben"/>
 <node CREATED="1519354819473" ID="ID_996615547" MODIFIED="1519354824572" TEXT="Tab innerhalb erzeugen"/>
 </node>
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1519354769960" FOLDED="true" ID="ID_778018274" MODIFIED="1533608416212" TEXT="Festlegung: was sind die Namen?">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1519354769960" ID="ID_778018274" MODIFIED="1533685343441" TEXT="Festlegung: was sind die Namen?">
 <linktarget COLOR="#2b4283" DESTINATION="ID_778018274" ENDARROW="Default" ENDINCLINATION="-1752;0;" ID="Arrow_ID_1022345699" SOURCE="ID_377787861" STARTARROW="None" STARTINCLINATION="795;544;"/>
 <linktarget COLOR="#5260a0" DESTINATION="ID_778018274" ENDARROW="Default" ENDINCLINATION="-1217;51;" ID="Arrow_ID_597388409" SOURCE="ID_266745032" STARTARROW="None" STARTINCLINATION="686;0;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@@ -11428,7 +11543,7 @@
 </node>
 <node COLOR="#338800" CREATED="1506181875481" ID="ID_941513985" MODIFIED="1518487921071" TEXT="AllocatorSpec">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1515631937958" ID="ID_1051141312" MODIFIED="1518487921071" TEXT="partielle Funktions-Applikation">
+<node COLOR="#338800" CREATED="1515631937958" FOLDED="true" ID="ID_1051141312" MODIFIED="1533685210636" TEXT="partielle Funktions-Applikation">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515725638196" ID="ID_919161877" MODIFIED="1525124215003" TEXT="geht das generisch...?">
 <icon BUILTIN="help"/>
@@ -11900,7 +12015,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1506984614487" ID="ID_380908645" MODIFIED="1518487921071" TEXT="UICoordResolver_test">
+<node CREATED="1506984614487" FOLDED="true" ID="ID_380908645" MODIFIED="1533684995953" TEXT="UICoordResolver_test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1506984645745" ID="ID_244163155" MODIFIED="1518487921071" TEXT="verify_simpleUsage">
 <icon BUILTIN="button_ok"/>
@@ -12234,7 +12349,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1517506145618" ID="ID_718086573" MODIFIED="1525124215023" TEXT="UILocationSolver_test">
+<node CREATED="1517506145618" FOLDED="true" ID="ID_718086573" MODIFIED="1533684993432" TEXT="UILocationSolver_test">
 <linktarget COLOR="#465888" DESTINATION="ID_718086573" ENDARROW="Default" ENDINCLINATION="-185;-461;" ID="Arrow_ID_1844529849" SOURCE="ID_957265584" STARTARROW="None" STARTINCLINATION="-598;29;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1517506161024" ID="ID_21333166" MODIFIED="1518487921071" TEXT="Verdrahtung mit Test/Dummy-UI">
@@ -12620,7 +12735,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504479933641" ID="ID_686917529" MODIFIED="1518487921072" TEXT="DSL">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504479933641" FOLDED="true" ID="ID_686917529" MODIFIED="1533685261979" TEXT="DSL">
 <cloud COLOR="#dac6a1"/>
 <linktarget COLOR="#5e819b" DESTINATION="ID_686917529" ENDARROW="Default" ENDINCLINATION="-89;-122;" ID="Arrow_ID_1067086551" SOURCE="ID_1397553997" STARTARROW="None" STARTINCLINATION="-322;62;"/>
 <linktarget COLOR="#b45c5a" DESTINATION="ID_686917529" ENDARROW="Default" ENDINCLINATION="-468;-196;" ID="Arrow_ID_1955094318" SOURCE="ID_1442345755" STARTARROW="None" STARTINCLINATION="360;85;"/>
@@ -12850,7 +12965,7 @@
 <node CREATED="1504962700536" ID="ID_1061344108" MODIFIED="1518487921074" TEXT="limitPerWindow(cnt)"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1506034501537" ID="ID_262802757" MODIFIED="1518487921074" TEXT="TODO">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1506034501537" FOLDED="true" ID="ID_262802757" MODIFIED="1533685244285" TEXT="TODO">
 <icon BUILTIN="flag-pink"/>
 <node CREATED="1506034518068" ID="ID_1413583873" MODIFIED="1518487921074" TEXT="ViewSpecDSL wird f&#xfc;r Location Spec zust&#xe4;ndig"/>
 <node CREATED="1506034529729" ID="ID_1906856590" MODIFIED="1518487921074" TEXT="Keine Generics mehr notwendig"/>
@@ -12896,7 +13011,7 @@
 </node>
 </node>
 <node CREATED="1504833110793" ID="ID_10881417" MODIFIED="1518487921074" TEXT="Ausdr&#xfc;cke">
-<node CREATED="1504833126079" ID="ID_286801467" MODIFIED="1518487921074" TEXT="konkret">
+<node CREATED="1504833126079" FOLDED="true" ID="ID_286801467" MODIFIED="1533685254493" TEXT="konkret">
 <cloud COLOR="#e6d0a4"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="pencil"/>
@@ -13613,7 +13728,8 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493852906845" HGAP="24" ID="ID_1176492517" MODIFIED="1523752843329" TEXT="siehe auch #1097 clarify the role of the panels in the UI" VSHIFT="9">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493852906845" HGAP="24" ID="ID_1176492517" MODIFIED="1533684335148" TEXT="siehe auch #1097 clarify the role of the panels in the UI" VSHIFT="9">
+<arrowlink COLOR="#636eac" DESTINATION="ID_429407869" ENDARROW="Default" ENDINCLINATION="650;-595;" ID="Arrow_ID_1361390047" STARTARROW="None" STARTINCLINATION="1465;0;"/>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1176492517" ENDARROW="Default" ENDINCLINATION="-68;-316;" ID="Arrow_ID_1083220093" SOURCE="ID_1375700494" STARTARROW="None" STARTINCLINATION="550;-23;"/>
 <icon BUILTIN="forward"/>
 </node>
@@ -13939,7 +14055,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240056019" HGAP="33" ID="ID_1526164022" MODIFIED="1529240077686" TEXT="#1144 refactor dock handling" VSHIFT="-6">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1533609225355" ID="ID_1031484560" MODIFIED="1533609232990" TEXT="Definitionen festlegen">
-<node CREATED="1533609236849" ID="ID_429407869" MODIFIED="1533609246416" TEXT="was ist ein Panel?">
+<node CREATED="1533609236849" ID="ID_429407869" MODIFIED="1533684335148" TEXT="was ist ein Panel?">
+<linktarget COLOR="#636eac" DESTINATION="ID_429407869" ENDARROW="Default" ENDINCLINATION="650;-595;" ID="Arrow_ID_1361390047" SOURCE="ID_1176492517" STARTARROW="None" STARTINCLINATION="1465;0;"/>
 <icon BUILTIN="yes"/>
 <node CREATED="1533609255486" ID="ID_540986387" MODIFIED="1533609275839" TEXT="identifizierbarer Teilraum im UI"/>
 <node CREATED="1533609277164" ID="ID_1581083802" MODIFIED="1533609290461" TEXT="ID ist Benennung + Typ"/>
@@ -14117,6 +14234,7 @@
 </node>
 </node>
 <node CREATED="1486943969999" ID="ID_1823284637" MODIFIED="1518487921078" TEXT="Wizzard">
+<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1533688050029" TEXT="Fehlerlog (notification display"/>
 <node CREATED="1486943974590" ID="ID_1603501979" MODIFIED="1518487921078" TEXT="Hilfe (Website?)"/>
 <node CREATED="1486944977005" ID="ID_811162889" MODIFIED="1518487921078" TEXT="kontextsensitive Hilfe"/>
 <node CREATED="1488494783190" ID="ID_1886731977" MODIFIED="1518487921078" TEXT="Assistenten"/>
@@ -14209,6 +14327,33 @@
 <node CREATED="1520721647670" ID="ID_1649501241" MODIFIED="1520721660608" TEXT="sollte auch L&#xf6;sung f&#xfc;r Tests beinhalten"/>
 </node>
 </node>
+<node CREATED="1533688118209" ID="ID_143545012" MODIFIED="1533688132123" TEXT="Use cases">
+<node CREATED="1533688144038" ID="ID_745583947" MODIFIED="1533688152544" TEXT="bekannte dedizierte Services">
+<node CREATED="1533688177913" ID="ID_1972484306" MODIFIED="1533688773500" TEXT="Fehlerlog">
+<linktarget COLOR="#9c95b1" DESTINATION="ID_1972484306" ENDARROW="Default" ENDINCLINATION="-3826;-1250;" ID="Arrow_ID_1735504887" SOURCE="ID_528918224" STARTARROW="None" STARTINCLINATION="2269;1167;"/>
+<node CREATED="1533688203118" ID="ID_1499180551" MODIFIED="1533688211792" TEXT="angesprochen via UI-Bus"/>
+<node CREATED="1533688212380" ID="ID_1473874751" MODIFIED="1533688216672" TEXT="hat eine global bekannte ID"/>
+<node CREATED="1533688218380" ID="ID_1933065721" MODIFIED="1533688232662" TEXT="ist ein Controller">
+<node CREATED="1533688634514" ID="ID_1485276432" MODIFIED="1533688640867" TEXT="NotificationController"/>
+<node CREATED="1533688235977" ID="ID_242586172" MODIFIED="1533688243228" TEXT="wird verwaltet vom Wizard"/>
+<node CREATED="1533688244128" ID="ID_1500614464" MODIFIED="1533688252139" TEXT="wird von diesem an den Bus angebunden"/>
+<node CREATED="1533688254935" ID="ID_1266070525" MODIFIED="1533688263201" TEXT="ist nicht notwendig sichtbar"/>
+<node CREATED="1533688263837" ID="ID_132068126" MODIFIED="1533688274600" TEXT="greift sich ein delegate-Display">
+<node CREATED="1533688280947" ID="ID_1196135465" MODIFIED="1533688286918" TEXT="im Infobox-Panel"/>
+<node CREATED="1533688287890" ID="ID_425331660" MODIFIED="1533688294453" TEXT="alloziert per ViewLocator"/>
+</node>
+</node>
+<node CREATED="1533688318950" ID="ID_995283229" MODIFIED="1533688332784" TEXT="macht bei Bedarf ein Widget sichtbar">
+<node CREATED="1533688335907" ID="ID_111071026" MODIFIED="1533688351621" TEXT="vorl&#xe4;ufig: Infobox anzeigen"/>
+<node CREATED="1533688352161" ID="ID_1123594451" MODIFIED="1533688365595" TEXT="sp&#xe4;ter: nur Warnlampe blinken">
+<node CREATED="1533688366799" ID="ID_1664513873" MODIFIED="1533688369651" TEXT="wie in Ardour"/>
+<node CREATED="1533688370311" ID="ID_395456237" MODIFIED="1533688381209" TEXT="nur bei schwerwiegenden Problemen aufploppen"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1533688162891" ID="ID_781003637" MODIFIED="1533688175781" TEXT="ein Kind in einen bekannten Ort pflanzen"/>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1486520281897" ID="ID_827558797" MODIFIED="1518487921078" TEXT="Problem: zwei Inseln" VSHIFT="16">
 <arrowlink COLOR="#5d6386" DESTINATION="ID_1847844548" ENDARROW="Default" ENDINCLINATION="35;-168;" ID="Arrow_ID_1483178089" STARTARROW="Default" STARTINCLINATION="-2;95;"/>
@@ -16941,7 +17086,7 @@
 <node CREATED="1448070559466" ID="ID_182430638" MODIFIED="1518487921085" TEXT="Controller"/>
 </node>
 <node CREATED="1448070583679" HGAP="30" ID="ID_1248152908" MODIFIED="1518487921085" TEXT="Protokoll">
-<node CREATED="1448078263344" ID="ID_1136748666" MODIFIED="1518487921085" TEXT="Verhaltensweisen">
+<node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1533684857379" TEXT="Verhaltensweisen">
 <cloud COLOR="#e0d6ba"/>
 <icon BUILTIN="info"/>
 <node CREATED="1448078268223" ID="ID_1027574047" MODIFIED="1518487921085" TEXT="Lebenszyklus">
@@ -17365,7 +17510,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1455422030995" HGAP="35" ID="ID_1455265273" MODIFIED="1518487921086" TEXT="mutation" VSHIFT="7">
+<node CREATED="1455422030995" FOLDED="true" HGAP="35" ID="ID_1455265273" MODIFIED="1533684837443" TEXT="mutation" VSHIFT="7">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1455666294927" ID="ID_373207685" MODIFIED="1518487921086" TEXT="Ausgangspunkt">
 <node CREATED="1455666301630" ID="ID_933452284" MODIFIED="1518487921086" TEXT="Element-Protokoll steht"/>
@@ -17385,7 +17530,7 @@
 <icon BUILTIN="full-3"/>
 </node>
 </node>
-<node CREATED="1455668897947" HGAP="211" ID="ID_1897861223" MODIFIED="1525124215046" TEXT="Konsequenzen" VSHIFT="23">
+<node CREATED="1455668897947" HGAP="211" ID="ID_1897861223" MODIFIED="1533684811285" TEXT="Konsequenzen" VSHIFT="23">
 <node CREATED="1455668923175" ID="ID_1183550957" MODIFIED="1472219338326" TEXT="brauche passendes UI-Bus API">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -17411,7 +17556,7 @@
 </html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1455668935142" ID="ID_1274632216" MODIFIED="1525124215048">
+<node CREATED="1455668935142" FOLDED="true" ID="ID_1274632216" MODIFIED="1533684781468">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17479,7 +17624,7 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
-<node CREATED="1455669004941" ID="ID_853385575" MODIFIED="1525124215049">
+<node CREATED="1455669004941" FOLDED="true" ID="ID_853385575" MODIFIED="1533684782805">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17535,7 +17680,7 @@
 <node CREATED="1458408730841" ID="ID_356597537" MODIFIED="1458408739164" TEXT="konkretes Binding"/>
 <node CREATED="1458408742408" ID="ID_1733136177" MODIFIED="1512926191895" TEXT="Binding-Technik">
 <node CREATED="1458408757478" ID="ID_1718466382" MODIFIED="1458408786501" TEXT="Mutator wird in jeweiliger Impl erzeugt"/>
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+<node BACKGROUND_COLOR="#eee5c3" COLOR="#221c4f" CREATED="1458408790457" FOLDED="true" ID="ID_1892865523" MODIFIED="1533684770264" STYLE="fork" TEXT="Polymorphie vs. Funktoren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1458408878574" ID="ID_1190262572" MODIFIED="1512926191896" TEXT="Abw&#xe4;gung">
 <icon BUILTIN="info"/>
@@ -17610,7 +17755,7 @@
 <node CREATED="1455842313629" ID="ID_179960248" MODIFIED="1455842321264" TEXT="ich h&#xe4;tte es gern echt-rekursiv"/>
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 </node>
-<node CREATED="1455833678448" HGAP="47" ID="ID_1439118587" MODIFIED="1512926191902" TEXT="Probleme" VSHIFT="16">
+<node CREATED="1455833678448" HGAP="47" ID="ID_1439118587" MODIFIED="1533684825451" TEXT="Probleme" VSHIFT="16">
 <font NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="clanbomber"/>
 <node CREATED="1455833736586" ID="ID_1233162987" MODIFIED="1525124215054" TEXT="Analyse: Feld vs Attribut">
@@ -17639,7 +17784,7 @@
 <node CREATED="1455898689479" ID="ID_1223705901" MODIFIED="1455898696898" TEXT="Attribut: ignorieren"/>
 <node CREATED="1455898698670" ID="ID_1532643598" MODIFIED="1455898705001" TEXT="Kind: delegieren"/>
 </node>
-<node CREATED="1455842653928" ID="ID_1996966445" MODIFIED="1525124215057">
+<node CREATED="1455842653928" FOLDED="true" ID="ID_1996966445" MODIFIED="1533684757737">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17710,7 +17855,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1455913713933" ID="ID_155948375" MODIFIED="1525124215060" TEXT="getypte Kinder">
+<node CREATED="1455913713933" FOLDED="true" ID="ID_155948375" MODIFIED="1533684828048" TEXT="getypte Kinder">
 <icon BUILTIN="help"/>
 <node CREATED="1455913726963" ID="ID_514338534" MODIFIED="1512926191909" TEXT="kommt es vor">
 <icon BUILTIN="help"/>
@@ -17798,7 +17943,7 @@
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-<node COLOR="#3a3785" CREATED="1455927009621" HGAP="148" ID="ID_153254427" MODIFIED="1515978222726" STYLE="fork" TEXT="&#xbb;generic tree diff&#xab;" VSHIFT="22">
+<node COLOR="#3a3785" CREATED="1455927009621" FOLDED="true" HGAP="148" ID="ID_153254427" MODIFIED="1533684744810" STYLE="fork" TEXT="&#xbb;generic tree diff&#xab;" VSHIFT="22">
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@@ -18195,7 +18340,7 @@
 </node>
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-<node COLOR="#85212c" CREATED="1455928782528" HGAP="-171" ID="ID_1300146872" MODIFIED="1512926191937" TEXT="kritische Aufgaben" VSHIFT="-207">
+<node COLOR="#85212c" CREATED="1455928782528" HGAP="-171" ID="ID_1300146872" MODIFIED="1533684815449" TEXT="kritische Aufgaben" VSHIFT="-207">
 <font NAME="SansSerif" SIZE="14"/>
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@@ -18213,7 +18358,7 @@
 <node CREATED="1455928846048" ID="ID_1278060510" MODIFIED="1455928856146" TEXT="TypCheck nur einmal"/>
 <node CREATED="1455928856870" ID="ID_806857541" MODIFIED="1455928878335" TEXT="ggfs Sequenz von ID-Checks"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#990000" CREATED="1455928805717" HGAP="76" ID="ID_496821508" MODIFIED="1512926191938" TEXT="mutator allocation" VSHIFT="-1">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#990000" CREATED="1455928805717" FOLDED="true" HGAP="76" ID="ID_496821508" MODIFIED="1533684736220" TEXT="mutator allocation" VSHIFT="-1">
 <font NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1455930962188" ID="ID_1435085503" MODIFIED="1455930970295" TEXT="konkreter Mutator-Typ"/>
@@ -18340,7 +18485,7 @@
 </node>
 </node>
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-<node BACKGROUND_COLOR="#d8bba4" CREATED="1456011994442" HGAP="68" ID="ID_343687995" MODIFIED="1525124215089" TEXT="zur Entscheidung..." VSHIFT="37">
+<node BACKGROUND_COLOR="#d8bba4" CREATED="1456011994442" FOLDED="true" HGAP="68" ID="ID_343687995" MODIFIED="1533684723794" TEXT="zur Entscheidung..." VSHIFT="37">
 <edge COLOR="#93766f"/>
 <arrowlink COLOR="#b10046" DESTINATION="ID_820279076" ENDARROW="Default" ENDINCLINATION="14;-46;" ID="Arrow_ID_103087571" STARTARROW="None" STARTINCLINATION="-137;-20;"/>
 <font NAME="SansSerif" SIZE="15"/>
@@ -18757,7 +18902,7 @@
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 </node>
-<node CREATED="1456430088803" HGAP="54" ID="ID_481518617" MODIFIED="1525124215096" TEXT="L&#xf6;sung" VSHIFT="19">
+<node CREATED="1456430088803" HGAP="54" ID="ID_481518617" MODIFIED="1533684808984" TEXT="L&#xf6;sung" VSHIFT="19">
 <icon BUILTIN="idea"/>
 <node CREATED="1456430099658" ID="ID_820279076" MODIFIED="1512926191960" TEXT="Entscheidung">
 <linktarget COLOR="#b10046" DESTINATION="ID_820279076" ENDARROW="Default" ENDINCLINATION="14;-46;" ID="Arrow_ID_103087571" SOURCE="ID_343687995" STARTARROW="None" STARTINCLINATION="-137;-20;"/>
@@ -18982,7 +19127,7 @@
 </node>
 </node>
 <node CREATED="1456523437616" HGAP="34" ID="ID_410606899" MODIFIED="1512926191970" TEXT="Manipulations-Interface" VSHIFT="6">
-<node COLOR="#338800" CREATED="1456523455997" ID="ID_1416114013" MODIFIED="1525124215118" TEXT="Design l&#xf6;sen">
+<node COLOR="#338800" CREATED="1456523455997" FOLDED="true" ID="ID_1416114013" MODIFIED="1533684705230" TEXT="Design l&#xf6;sen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1456523507910" ID="ID_429333479" MODIFIED="1456523518005" TEXT="Henne oder Ei?"/>
 <node CREATED="1456523471851" ID="ID_1273540009" MODIFIED="1456523485597" TEXT="komm nicht vom Fleck"/>
@@ -19023,7 +19168,7 @@
 <node CREATED="1456523612849" ID="ID_729852941" MODIFIED="1456523625883" TEXT="Test zum Aufbau des Interfaces"/>
 </node>
 </node>
-<node CREATED="1456528418823" HGAP="30" ID="ID_1372068793" MODIFIED="1525124215124" TEXT="Bestandteile" VSHIFT="-1">
+<node CREATED="1456528418823" FOLDED="true" HGAP="30" ID="ID_1372068793" MODIFIED="1533684696827" TEXT="Bestandteile" VSHIFT="-1">
 <icon BUILTIN="info"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1456528424246" ID="ID_472044094" MODIFIED="1515978023897" STYLE="fork" TEXT="Selektor">
 <linktarget COLOR="#7caed5" DESTINATION="ID_472044094" ENDARROW="Default" ENDINCLINATION="466;133;" ID="Arrow_ID_1253352795" SOURCE="ID_1406395599" STARTARROW="None" STARTINCLINATION="681;0;"/>
@@ -19270,7 +19415,7 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1457232408368" HGAP="29" ID="ID_1068782263" MODIFIED="1512926191985" TEXT="TestWireTap / TestMutationTarget" VSHIFT="-6">
+<node CREATED="1457232408368" FOLDED="true" HGAP="29" ID="ID_1068782263" MODIFIED="1533684619595" TEXT="TestWireTap / TestMutationTarget" VSHIFT="-6">
 <icon BUILTIN="full-1"/>
 <node CREATED="1457232426238" ID="ID_728198359" MODIFIED="1457232567024" TEXT="brauche ich, um das API zu entwickeln">
 <linktarget COLOR="#6b77a6" DESTINATION="ID_728198359" ENDARROW="Default" ENDINCLINATION="-116;0;" ID="Arrow_ID_340427685" SOURCE="ID_625051251" STARTARROW="None" STARTINCLINATION="-819;487;"/>
@@ -19316,7 +19461,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1457232734636" ID="ID_1873945047" MODIFIED="1512926191987" TEXT="STL Collection">
+<node CREATED="1457232734636" FOLDED="true" ID="ID_1873945047" MODIFIED="1533684617605" TEXT="STL Collection">
 <icon BUILTIN="full-2"/>
 <node CREATED="1458175823858" ID="ID_438044714" MODIFIED="1512926191990" TEXT="Design-Grundlagen">
 <node CREATED="1457741673001" ID="ID_1873415490" MODIFIED="1512926191990" TEXT="konkrete Beispiele">
@@ -19353,7 +19498,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1458175861176" HGAP="33" ID="ID_44294405" MODIFIED="1525124215141" TEXT="Design-Anforderungen">
+<node CREATED="1458175861176" FOLDED="true" HGAP="33" ID="ID_44294405" MODIFIED="1533684553508" TEXT="Design-Anforderungen">
 <node CREATED="1458175880034" ID="ID_995745627" MODIFIED="1512926191992" TEXT="gegeben ist eine STL-Collection">
 <node CREATED="1458175892400" ID="ID_1308086929" MODIFIED="1458175904674" TEXT="allgemeinstes STL-Container-Interface"/>
 <node CREATED="1458175905766" ID="ID_446727516" MODIFIED="1458175919817" TEXT="Wert-Typ per typedef abgreifen"/>
@@ -19529,7 +19674,7 @@
 <node CREATED="1458178223723" ID="ID_798018180" MODIFIED="1458178247755" TEXT="es gibt eine freie Funktion, die einen nested Builder f&#xfc;r das Binding liefert"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1458178288690" ID="ID_562189277" MODIFIED="1525124215151" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1458178288690" FOLDED="true" ID="ID_562189277" MODIFIED="1533684562806" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1458178298328" ID="ID_1964300614" MODIFIED="1512926192003" TEXT="Builder">
 <node CREATED="1458325962991" ID="ID_1955400674" MODIFIED="1460753004725" TEXT="Typ-Definitionen schwierig anzuschreiben">
@@ -19747,7 +19892,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1457232752458" ID="ID_1490646673" MODIFIED="1512926192008" TEXT="Attribute">
+<node CREATED="1457232752458" FOLDED="true" ID="ID_1490646673" MODIFIED="1533684616156" TEXT="Attribute">
 <icon BUILTIN="full-3"/>
 <node CREATED="1458175823858" ID="ID_1785794072" MODIFIED="1512926192010" TEXT="Design-Grundlagen">
 <node CREATED="1461882686190" ID="ID_233456976" MODIFIED="1472219338718" TEXT="von praktischer Notwendigkeit getrieben">
@@ -19806,7 +19951,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1458175861176" HGAP="39" ID="ID_887227300" MODIFIED="1525124215160" TEXT="Design-Anforderungen" VSHIFT="7">
+<node CREATED="1458175861176" FOLDED="true" HGAP="39" ID="ID_887227300" MODIFIED="1533684569244" TEXT="Design-Anforderungen" VSHIFT="7">
 <node CREATED="1458175880034" ID="ID_163174135" MODIFIED="1512926192012" TEXT="...ein Objekt hat schon ein bestimmtes Feld">
 <node CREATED="1458175892400" ID="ID_640596624" MODIFIED="1461888660658" TEXT="Typ"/>
 <node CREATED="1461888661462" ID="ID_1138175982" MODIFIED="1461888668033" TEXT="default-Wert"/>
@@ -20442,8 +20587,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1458178113697" HGAP="61" ID="ID_38103760" MODIFIED="1525124215185" TEXT="Design-Schlu&#xdf;folgerungen" VSHIFT="48">
-<node CREATED="1463687362843" HGAP="116" ID="ID_775516687" MODIFIED="1512926192048" TEXT="Eingrenzung" VSHIFT="-28">
+<node CREATED="1458178113697" FOLDED="true" HGAP="61" ID="ID_38103760" MODIFIED="1533684598672" TEXT="Design-Schlu&#xdf;folgerungen" VSHIFT="48">
+<node CREATED="1463687362843" FOLDED="true" HGAP="116" ID="ID_775516687" MODIFIED="1533684596547" TEXT="Eingrenzung" VSHIFT="-28">
 <node CREATED="1463687373889" ID="ID_155516876" MODIFIED="1512926192049" TEXT="Art von Attributen">
 <node CREATED="1463687402462" ID="ID_1119981147" MODIFIED="1533608413953" TEXT="Objekt-Feld">
 <icon BUILTIN="forward"/>
@@ -20931,7 +21076,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1464227213180" HGAP="29" ID="ID_691018374" MODIFIED="1525124215198" TEXT="Implementierung" VSHIFT="66">
+<node COLOR="#338800" CREATED="1464227213180" FOLDED="true" HGAP="29" ID="ID_691018374" MODIFIED="1533684574690" TEXT="Implementierung" VSHIFT="66">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1464227218795" ID="ID_1100206442" MODIFIED="1512926192068" TEXT="ist grunds&#xe4;tzlich &quot;schon da&quot;">
 <richcontent TYPE="NOTE"><html>
@@ -21183,7 +21328,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1457232746179" ID="ID_1793680066" MODIFIED="1512926192076" TEXT="Rec&lt;GenNode&gt;" VSHIFT="11">
+<node CREATED="1457232746179" FOLDED="true" ID="ID_1793680066" MODIFIED="1533684614788" TEXT="Rec&lt;GenNode&gt;" VSHIFT="11">
 <icon BUILTIN="full-4"/>
 <node CREATED="1464305377785" ID="ID_396910166" MODIFIED="1512926192076" TEXT="Vor&#xfc;berlegungen">
 <node CREATED="1464305417066" ID="ID_1059660516" MODIFIED="1512926192077" TEXT="w&#xfc;nschenswert">
@@ -21256,7 +21401,7 @@
 <node CREATED="1472654905416" ID="ID_729856704" MODIFIED="1472654910067" TEXT="minimaler Code"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1464305382975" ID="ID_1038582300" MODIFIED="1525124215206" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1464305382975" FOLDED="true" ID="ID_1038582300" MODIFIED="1533684605783" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1457742036967" ID="ID_980619979" MODIFIED="1512926192084" TEXT="Attribute">
 <node CREATED="1472781560508" ID="ID_1534877939" MODIFIED="1472781584718" TEXT="Selector: isNamed"/>
@@ -21523,7 +21668,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1465428839332" ID="ID_909803930" MODIFIED="1512926192097" TEXT="Diff-Anwendung" VSHIFT="36">
+<node CREATED="1465428839332" FOLDED="true" ID="ID_909803930" MODIFIED="1533684673395" TEXT="Diff-Anwendung" VSHIFT="36">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1465428850946" ID="ID_1085608480" MODIFIED="1512926192098">
 <richcontent TYPE="NODE"><html>
@@ -21536,7 +21681,7 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1465664755169" ID="ID_132124444" MODIFIED="1512926192099" TEXT="Modus der Anwendung">
+<node CREATED="1465664755169" FOLDED="true" ID="ID_132124444" MODIFIED="1533684649305" TEXT="Modus der Anwendung">
 <node CREATED="1465664762944" ID="ID_1254081914" MODIFIED="1465665479208" TEXT="DiffApplicator&lt;TreeMutator&gt;">
 <icon BUILTIN="help"/>
 </node>
@@ -21986,7 +22131,7 @@
 <node CREATED="1465856092638" ID="ID_587610953" MODIFIED="1472219324298" TEXT="BufferManager : opaque aber inline"/>
 </node>
 </node>
-<node CREATED="1465864106739" ID="ID_1139754084" MODIFIED="1525124215222" TEXT="Zugang zum Mutator-Binding">
+<node CREATED="1465864106739" FOLDED="true" ID="ID_1139754084" MODIFIED="1533684660318" TEXT="Zugang zum Mutator-Binding">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -22031,7 +22176,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1465860736044" ID="ID_40337378" MODIFIED="1525124215225" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1465860736044" FOLDED="true" ID="ID_40337378" MODIFIED="1533684662875" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1472121965308" ID="ID_292673963" MODIFIED="1472121974646" TEXT="Verb delegiert an Mutator-Primitive"/>
 <node CREATED="1472121976018" ID="ID_421028989" MODIFIED="1472121995995" TEXT="Fehlerbehandlung anhand R&#xfc;ckgabewert dieser"/>

From 12244afc900455d4fbb65c8dfad2fd518fe4cef1 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 9 Aug 2018 01:42:42 +0200
Subject: [PATCH 003/178] NotificationDisplay: fill in some default
 implementation for the controller

---
 src/gui/ctrl/notification-hub.hpp | 36 +++++++++++++++++++++++--------
 src/gui/model/controller.hpp      |  2 ++
 wiki/thinkPad.ichthyo.mm          |  9 ++++++--
 3 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 0676f742e..7b58221d5 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -37,35 +37,53 @@
 #ifndef GUI_CTRL_NOTIFICATION_HUB_H
 #define GUI_CTRL_NOTIFICATION_HUB_H
 
-#include "gui/gtk-base.hpp"
-#include "lib/nocopy.hpp"
+#include "gui/widget/error-log-widget.hpp"
+#include "gui/model/controller.hpp"
+#include "lib/diff/tree-mutator.hpp"
 
-#include <memory>
-#include <list>
+//#include <memory>
+//#include <list>
 
 
 namespace gui {
-namespace workspace { class WorkspaceWindow; }
 namespace ctrl {
   
+  using lib::diff::TreeMutator;
   
-  using std::list;
   
   
   
   /**
    * Service to receive and display error, warning and notification messages.
    * These are sent over the UI-Bus through the NotificationService; after receiving
-   * such a message, this controller ensures to display the message and altert the
+   * such a message, this controller ensures to display the message and alert the
    * user, while not blocking the overall UI. 
    */
   class NotificationHub
-    : util::NonCopyable
+    : public model::Controller
     {
       
+      /** content population and manipulation via UI-Bus */
+      void
+      buildMutator (lib::diff::TreeMutator::Handle buffer)  override
+        {
+      //  using Attrib = std::pair<const string,string>;
+      //  using lib::diff::collection;
+          
+          buffer.create (
+            TreeMutator::build()
+          );
+          UNIMPLEMENTED ("create a sensible binding between AssetManager in the section and AssetController in the UI");
+        }
+    
+    public:
       
     public:
-      NotificationHub ();
+      NotificationHub (ID identity, ctrl::BusTerm& nexus)////////////////////////////////////TODO #1099 : define the ID hard-wired at an appropriate location, so it can be used from the NotificationService impl as well
+        : model::Controller{identity, nexus}
+        { }
+        
+     ~NotificationHub() { };
       
     private:
       
diff --git a/src/gui/model/controller.hpp b/src/gui/model/controller.hpp
index 8ebdfea29..e9accebb8 100644
--- a/src/gui/model/controller.hpp
+++ b/src/gui/model/controller.hpp
@@ -25,6 +25,8 @@
  ** Common Abstraction of all sub-controller, coordinated by the UI-Bus.
  ** 
  ** @todo as of 1/2015 this is complete WIP-WIP-WIP
+ ** @todo as of 8/2018 we should consider to distill a common default implementation usable for most controllers.
+ **       especially, there might be a default (NOP) implementation of the diff mutator builder
  ** 
  ** @see model::Tangible
  ** @see gui::UIBus
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 94882dfe8..93b63d0a7 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1490,6 +1490,9 @@
 <arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-28;-42;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1533771830887" TEXT="wohin ist die ID selber definiert">
+<icon BUILTIN="help"/>
+</node>
 </node>
 <node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
@@ -1620,7 +1623,7 @@
 </html>
 </richcontent>
 </node>
-<node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1533768947198">
+<node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1533771786813">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -1632,9 +1635,11 @@
   </body>
 </html>
 </richcontent>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1533769126436" ID="ID_1000961938" MODIFIED="1533769129591" TEXT="wohin?">
+<node CREATED="1533769126436" ID="ID_1000961938" MODIFIED="1533771781272" TEXT="wohin?">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1533769130987" ID="ID_220812854" MODIFIED="1533769163306" TEXT="ctrl">
 <icon BUILTIN="forward"/>
 </node>

From 5475839a49d9b0f8fd8a21c0be8f8ea7f64a1720 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 10 Aug 2018 18:37:09 +0200
Subject: [PATCH 004/178] NotificationDisplay: the question where to define the
 entity-ID

---
 src/gui/ctrl/notification-hub.hpp |   2 +-
 src/gui/interact/wizard.hpp       |   4 +-
 src/proc/asset/meta.cpp           |   3 -
 src/proc/asset/meta.hpp           |  21 ++---
 src/proc/asset/unknown.cpp        |   8 +-
 src/proc/asset/unknown.hpp        |   4 +-
 wiki/renderengine.html            |   8 +-
 wiki/thinkPad.ichthyo.mm          | 133 +++++++++++++++++++++++++++---
 8 files changed, 147 insertions(+), 36 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 7b58221d5..1e447cc6f 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -73,7 +73,7 @@ namespace ctrl {
           buffer.create (
             TreeMutator::build()
           );
-          UNIMPLEMENTED ("create a sensible binding between AssetManager in the section and AssetController in the UI");
+          UNIMPLEMENTED ("create a sensible binding between AssetManager in the session and AssetController in the UI");
         }
     
     public:
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 2d12f9733..381f1b40f 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -42,8 +42,8 @@
 #ifndef GUI_INTERACT_WIZARD_H
 #define GUI_INTERACT_WIZARD_H
 
-#include "gui/gtk-base.hpp"
 #include "lib/nocopy.hpp"
+#include "lib/idi/entry-id.hpp"
 
 //#include <string>
 #include <memory>
@@ -62,6 +62,8 @@ namespace interact {
 //  class GlobalCtx;
 //  class SpotLocator;
   
+  extern lib::idi::EntryID<ErrorLog> theErrorLog_ID;
+  
   
   
   /**
diff --git a/src/proc/asset/meta.cpp b/src/proc/asset/meta.cpp
index 927ef2a1c..404eda461 100644
--- a/src/proc/asset/meta.cpp
+++ b/src/proc/asset/meta.cpp
@@ -96,9 +96,6 @@ namespace asset {
    /**************************************************/
 
 #include "proc/asset/meta/time-grid.hpp"
-//#include "proc/asset/procpatt.hpp"
-//#include "proc/asset/timeline.hpp"
-//#include "proc/asset/sequence.hpp"
 
 
 namespace proc {
diff --git a/src/proc/asset/meta.hpp b/src/proc/asset/meta.hpp
index f701a665f..4a736cf47 100644
--- a/src/proc/asset/meta.hpp
+++ b/src/proc/asset/meta.hpp
@@ -28,13 +28,14 @@
  ** works with. Lumiera exposes this self-referential control and customisation
  ** aspects as a special kind of Asset. Examples being types, scales and quantisation
  ** grids, decision rules, control data stores (automation data), annotations attached
- ** to labels, inventory entities etc. 
+ ** to labels, inventory entities etc.
  ** 
- ** For the different <i>Kinds</i> of Assets, we use sub-interfaces inheriting
+ ** For the different _Kinds_ of Assets, we use sub-interfaces inheriting
  ** from the general Asset interface. To be able to get asset::Meta instances
  ** directly from the AssetManager, we define a specialisation of the Asset ID.
  ** 
- ** \par using meta assets
+ ** ## using meta assets
+ ** 
  ** The usage pattern of asset::Meta entities differs from the other assets,
  ** insofar they aren't created as individual entries, rather added as part
  ** of a larger scale configuration activity, or they are derived from category.
@@ -47,7 +48,7 @@
  ** They are created from a descriptor, which stands for a category or sub-category
  ** and can be another already existing asset::Meta (inheriting from meta::Descriptor)
  ** Generally this yields a Builder object, which can be used for outfitting the new
- ** or changed metadata entry, finally \em committing this builder to yield a new
+ ** or changed metadata entry, finally *committing* this builder to yield a new
  ** asset::Meta (which, in case of a mutation, might supersede an existing one).
  ** 
  ** @ingroup asset
@@ -97,9 +98,9 @@ namespace asset {
        * thus, on creation or when changing / superseding a
        * meta asset, the client gets a special builder instance,
        * which is a value object for configuring the specific details
-       * to set. When done, the client invokes a \c commit() function,
+       * to set. When done, the client invokes a `commit()` function,
        * which yields a smart-ptr to the new meta asset.
-       * Individual meta asset subclasses are bound to define a 
+       * Individual meta asset subclasses are bound to define a
        * specialisation of this Builder template, which will then be
        * instantiated and provided by the MetaFactory.
        */
@@ -120,8 +121,8 @@ namespace asset {
       static MetaFactory create;
       
       /** @return ID of kind Meta */
-      virtual const ID<Meta>& getID()  const 
-        { 
+      virtual const ID<Meta>& getID()  const
+        {
           return static_cast<const ID<Meta>& > (Asset::getID());
         }
       
@@ -142,9 +143,9 @@ namespace asset {
   
   
   
-  /** 
+  /**
    * Factory specialised for creating Metadata Asset objects.
-   */ 
+   */
   class MetaFactory
     : util::NonCopyable
     {
diff --git a/src/proc/asset/unknown.cpp b/src/proc/asset/unknown.cpp
index 7f6af5083..da79d941f 100644
--- a/src/proc/asset/unknown.cpp
+++ b/src/proc/asset/unknown.cpp
@@ -41,19 +41,19 @@ namespace asset {
   /** create a placeholder for a media with the given identity.
    *  the denoted original media (identity) can be accessed later
    *  on using the Unknown::getOrg() function.
-   *  @note we don't depend on the refered media...
+   *  @note we don't depend on the referred media...
    */
   Unknown::Unknown (const Asset::Ident& idi, string name, Duration length)
     : Media (idi, name, length)
   {
     TODO ("implement some sensible behaviour for the »unknown media« placeholder...");
-  }  
+  }
   
   
-  /** using the information stored in this placeholder asset, 
+  /** using the information stored in this placeholder asset,
    *  try to access the "real" media it stands for.
    */
-  Media::PMedia 
+  Media::PMedia
   Unknown::getOrg()
   {
     UNIMPLEMENTED ("how to get at the original media from a »Unknown« placeholder");
diff --git a/src/proc/asset/unknown.hpp b/src/proc/asset/unknown.hpp
index 9f588030d..4116ebfbb 100644
--- a/src/proc/asset/unknown.hpp
+++ b/src/proc/asset/unknown.hpp
@@ -48,8 +48,8 @@ namespace asset {
   /**
    * Placeholder Asset for unknown or unavailable media source.
    * @todo maybe do special handling of the media length, allowing
-   *       it to support existing clips even if the media length 
-   *       is not known? 
+   *       it to support existing clips even if the media length
+   *       is not known?
    */
   class Unknown : public Media
     {
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 7d269fbe5..ccaa9b485 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -860,7 +860,7 @@ Even if the low-level memory manager(s) may use raw storage, we require that the
 &amp;rarr; see MemoryManagement
 </pre>
 </div>
-<div title="Asset" modifier="Ichthyostega" created="200708100337" modified="201505310058" tags="def classes img" changecount="1">
+<div title="Asset" modifier="Ichthyostega" created="200708100337" modified="201808101636" tags="def classes img" changecount="2">
 <pre>Asset management is a subsystem on its own. Assets are &quot;things&quot; that can be loaded into a session, like Media, Clips, Effects, Transitions. It is the &quot;bookkeeping view&quot;, while the Objects in the Session relate to the &quot;manipulation and process view&quot;. Some Assets can be //loaded// and a collection of Assets is saved with each Session. Besides, there is a collection of basic Assets always available by default.
 
 The Assets are important reference points holding the information needed to access external resources. For example, an Clip asset can reference a Media asset, which in turn holds the external filename from which to get the media stream. For Effects, the situation is similar. Assets thus serve two quite distinct purposes. One is to load, list, group search and browse them, and to provide an entry point to create new or get at existing MObject in the Session, while the other purpose is to provide attribute and property information to the inner parts of the engine, while at the same time isolating and decoupling them from environmental details. 
@@ -888,7 +888,7 @@ Some of the building blocks providing the framework for the objects placed into
 &amp;rarr; StructAsset {{red{still a bit vague...}}}
 
 !Meta Asset
-Any resources related to the //reflective recurse of the application on itself,// including parametrisation and customisation aspects and similar metadata, are categorised and tracked apart of the primary entities. Examples being types, scales and quantisation grids, decision rules, control data stores (automation data), annotations attached to labels, inventory entities etc.
+Any resources related to the //reflective recurse of the application on itself,// including parametrisation and customisation aspects and similar metadata, are categorised and tracked apart of the primary entities. Examples being types, scales and quantisation grids, decision rules, control data stores (automation data), annotations attached to labels, inventory entities, error items etc.
 * __outward interface operations__ include...
 * __inward interface operations__ include...
 &amp;rarr; MetaAsset {{red{just emerging as of 12/2010}}}
@@ -4210,8 +4210,8 @@ For the case here in question this seems to be the __R__esource __A__llocation _
 And, last but not least, doing large scale allocations is the job of the backend. Exceptions being long-lived objects, like the session or the sequences, which are created once and don't bear the danger of causing memory pressure. Generally speaking, client code shouldn't issue &quot;new&quot; and &quot;delete&quot; when it comes in handy. Questions of setup and lifecycle should allways be delegated, typically through the usage of some [[factory|Factories]], which might return the product conveniently wrapped into a RAII style handle. Memory allocation is crucial for performance, and needs to be adapted to the actual platform -- which is impossible unless abstracted and treated as a separate concern.
 </pre>
 </div>
-<div title="MetaAsset" modifier="Ichthyostega" created="201012290320" modified="201501091121" tags="def" changecount="1">
-<pre>This category encompasses the various aspects of the way the application controls and manages its own behaviour. They are more related to the way the application behaves, as opposed to the way the edited data is structured and organised (which is the realm of [[structural assets|StructAsset]]
+<div title="MetaAsset" modifier="Ichthyostega" created="201012290320" modified="201808101637" tags="def" changecount="2">
+<pre>This category encompasses the various aspects of the way the application controls and manages its own behaviour. They are more related to the way the application behaves, as opposed to the way the edited data is structured and organised (which is the realm of [[structural assets|StructAsset]])
 * StreamType &amp;rarr; a type system for describing and relating media data streams
 * ScaleGrid &amp;rarr; to manage time scales and frame alignment
 
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 93b63d0a7..60e39ec73 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1480,18 +1480,106 @@
       <i>das</i>&#160;ist schon die endg&#252;ltige L&#246;sung
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1533688935962" ID="ID_1996006263" MODIFIED="1533688943780" TEXT="NotificationController">
 <node CREATED="1533688944816" ID="ID_1273458647" MODIFIED="1533688952787" TEXT="wird vom Wizard gemanagt"/>
-<node CREATED="1533688953399" ID="ID_1850034653" MODIFIED="1533689013147" TEXT="belegt ein Display-widget">
-<arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-28;-42;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
+<node CREATED="1533688953399" ID="ID_1850034653" MODIFIED="1533915641929" TEXT="belegt ein Display-widget">
+<arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1533771830887" TEXT="wohin ist die ID selber definiert">
+<node COLOR="#338800" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1533915741875" TEXT="wo ist die ID selber definiert">
 <icon BUILTIN="help"/>
+<node CREATED="1533911116328" ID="ID_1079600246" MODIFIED="1533911128764" TEXT="sie mu&#xdf; insgesamt reprouzierbar sein"/>
+<node CREATED="1533911129424" ID="ID_659618402" MODIFIED="1533911139946" TEXT="zumindest innerhalb einer Program-Ausf&#xfc;hrung"/>
+<node CREATED="1533911854871" HGAP="11" ID="ID_1953310668" MODIFIED="1533911866860" TEXT="Problem dabei" VSHIFT="11">
+<node CREATED="1533911897569" ID="ID_1876551933" MODIFIED="1533911919154" TEXT="ID ist somit Teil des Interface"/>
+<node CREATED="1533911919814" ID="ID_558535868" MODIFIED="1533911928937" TEXT="welches Interface?">
+<node CREATED="1533915325903" ID="ID_1053391149" MODIFIED="1533915334817" TEXT="GuiNotification">
+<node CREATED="1533915343891" FOLDED="true" ID="ID_1650034681" MODIFIED="1533915518726" TEXT="Nebengedanke: pa&#xdf;t der Name?">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1533915353434" ID="ID_1231213592" MODIFIED="1533915424732" TEXT="ist mehr als &quot;notification&quot;?">
+<icon BUILTIN="button_cancel"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1533915365545" ID="ID_892577975" MODIFIED="1533915367959" TEXT="nein">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1533915439279" ID="ID_285136109" MODIFIED="1533915452025" TEXT="Notification auf Architektur-Level"/>
+</node>
+<node CREATED="1533915371872" ID="ID_1003239787" MODIFIED="1533915380406" TEXT="GuiFeedback?">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1533915407171" ID="ID_728064464" MODIFIED="1533915412457" TEXT="GuiReaction">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1533915454893" ID="ID_877610316" MODIFIED="1533915459256" TEXT="der Name ist ad&#xe4;quat">
+<node CREATED="1533915472186" ID="ID_1748932158" MODIFIED="1533915479325" TEXT="GuiFeedback w&#xfc;rde auch gehen"/>
+<node CREATED="1533915480649" ID="ID_846895155" MODIFIED="1533915485628" TEXT="aber klingt nicht so sch&#xf6;n"/>
+<node CREATED="1533915486336" ID="ID_627537189" MODIFIED="1533915508660" TEXT="und ist doppeldeutig">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...es k&#246;nnte auch den Feedback des Users meinen
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+</node>
+<node CREATED="1533915683535" ID="ID_1976057171" MODIFIED="1533915688561" TEXT="w&#xe4;re m&#xf6;glich"/>
+<node CREATED="1533915689317" ID="ID_689429680" MODIFIED="1533915696616" TEXT="hat aber anderen Scope"/>
+</node>
+<node CREATED="1533915336757" ID="ID_1674509000" MODIFIED="1533915653847" TEXT="NotificationService">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1533915549928" ID="ID_1316198257" MODIFIED="1533915675249" TEXT="ErrorLogView">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1533915663705" ID="ID_1407115037" MODIFIED="1533915670027" TEXT="ist Implementation"/>
+</node>
+<node CREATED="1533915555871" ID="ID_1144697657" MODIFIED="1533915558835" TEXT="ErrorLog">
+<node CREATED="1533915560942" ID="ID_981931913" MODIFIED="1533915564473" TEXT="w&#xfc;rde passen"/>
+<node CREATED="1533915565111" ID="ID_779138620" MODIFIED="1533915568721" TEXT="gibts aber noch nicht"/>
+<node CREATED="1533915569453" ID="ID_208285264" MODIFIED="1533915574145" TEXT="hat sonst keinen Inhalt"/>
+</node>
+<node CREATED="1533915576132" ID="ID_1784095931" MODIFIED="1533915585148" TEXT="Wizzard">
+<icon BUILTIN="forward"/>
+<node CREATED="1533915588283" ID="ID_909934131" MODIFIED="1533915603577">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Schlu&#223;folgerung: Wizzard <i>wird</i>&#160;ein Interface
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+</node>
+<node CREATED="1533911886268" ID="ID_1414379746" MODIFIED="1533911931262" TEXT="ID storage"/>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1533916387142" HGAP="-78" ID="ID_1746348489" MODIFIED="1533916411849" TEXT="Festlegung" VSHIFT="-6">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1533916393797" ID="ID_1198718862" MODIFIED="1533916417405" TEXT="Wizzard">
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+</node>
+<node CREATED="1533916397565" ID="ID_1117749960" MODIFIED="1533918772587" TEXT="ErrorLog">
+<arrowlink COLOR="#68788a" DESTINATION="ID_1121251191" ENDARROW="Default" ENDINCLINATION="-1644;0;" ID="Arrow_ID_146013003" STARTARROW="None" STARTINCLINATION="-4766;280;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<node CREATED="1533916469971" ID="ID_802623301" MODIFIED="1533916472319" TEXT="in Proc"/>
+<node CREATED="1533916473075" ID="ID_766768160" MODIFIED="1533916479190" TEXT="neu zu schaffen"/>
+<node CREATED="1533916480282" ID="ID_1974491793" MODIFIED="1533916483670" TEXT="Platzhalter"/>
+<node CREATED="1533916484785" ID="ID_537026197" MODIFIED="1533916497105" TEXT="(vorerst)">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
@@ -1510,8 +1598,8 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1533688853229" ID="ID_396920290" MODIFIED="1533689013147" TEXT="der NotificationController im Wizard erzeugt es">
-<linktarget COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-28;-42;" ID="Arrow_ID_729082861" SOURCE="ID_1850034653" STARTARROW="None" STARTINCLINATION="101;-7;"/>
+<node CREATED="1533688853229" ID="ID_396920290" MODIFIED="1533915641929" TEXT="der NotificationController im Wizard erzeugt es">
+<linktarget COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" SOURCE="ID_1850034653" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 <node CREATED="1533688860812" ID="ID_1631735052" MODIFIED="1533688874622" TEXT="direkt im aktiven WorkspaceWindow -&gt; PanelManager"/>
 <node CREATED="1533688875242" ID="ID_708108999" MODIFIED="1533688887596" TEXT="solange bis Panel-Management umgebaut wird">
@@ -1620,8 +1708,7 @@
       und er trotzdem vom konkreten Widget entkoppelt bleibt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1533771786813">
 <richcontent TYPE="NODE"><html>
@@ -1633,8 +1720,7 @@
       besserer Name: <b>NotificationHub</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -31988,6 +32074,31 @@
 </node>
 <node CREATED="1533401481917" HGAP="31" ID="ID_1634540822" MODIFIED="1533401493385" TEXT="Struktur" VSHIFT="-19">
 <icon BUILTIN="hourglass"/>
+<node CREATED="1533918273704" ID="ID_1490841818" MODIFIED="1533918278281" TEXT="Modell">
+<node CREATED="1533918279368" ID="ID_90099848" MODIFIED="1533918281339" TEXT="Assets">
+<node CREATED="1533918370708" ID="ID_1044798440" MODIFIED="1533918385590" TEXT="Arten">
+<node CREATED="1533918396480" ID="ID_1371207426" MODIFIED="1533918398572" TEXT="Media"/>
+<node CREATED="1533918387145" ID="ID_421009475" MODIFIED="1533918399497" TEXT="Proc"/>
+<node CREATED="1533918391201" ID="ID_1099238975" MODIFIED="1533918401792" TEXT="Struct"/>
+<node CREATED="1533918403071" ID="ID_277977903" MODIFIED="1533918404515" TEXT="Meta"/>
+</node>
+<node CREATED="1533918425908" ID="ID_1069430929" MODIFIED="1533918430743" TEXT="Einordnung">
+<node CREATED="1533918431595" ID="ID_1121251191" MODIFIED="1533918772587" TEXT="ErrorLog(Asset)">
+<linktarget COLOR="#68788a" DESTINATION="ID_1121251191" ENDARROW="Default" ENDINCLINATION="-1644;0;" ID="Arrow_ID_146013003" SOURCE="ID_1117749960" STARTARROW="None" STARTINCLINATION="-4766;280;"/>
+<node CREATED="1533918806369" ID="ID_1198682609" MODIFIED="1533918809694" TEXT="Media">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1533918810848" ID="ID_29240989" MODIFIED="1533918815271" TEXT="Struct">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1533918821511" ID="ID_1150910919" MODIFIED="1533918823011" TEXT="Meta">
+<node CREATED="1533919635505" ID="ID_353835069" MODIFIED="1533919642476" TEXT="pa&#xdf;t soweit schon"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1533918281880" ID="ID_1584868520" MODIFIED="1533918285603" TEXT="MObject"/>
+</node>
 <node CREATED="1533401497075" ID="ID_598742497" MODIFIED="1533401504734" TEXT="Struktur-&#xc4;nderungen">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401543765" ID="ID_1439915831" MODIFIED="1533401547605" TEXT="erkennen">
 <icon BUILTIN="flag-yellow"/>

From 1d69bb9050648da96a0b927824f4d2d9db2670d6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 11 Aug 2018 16:16:13 +0200
Subject: [PATCH 005/178] NotificationDisplay: define a new ErrorLog asset

...for now to serve as placeholder type, used as anchor for the corresponding UI display widget
---
 src/gui/interact/wizard.hpp       |   8 +-
 src/proc/asset/meta/error-log.cpp |  76 ++++++++++++++++
 src/proc/asset/meta/error-log.hpp | 101 +++++++++++++++++++++
 wiki/thinkPad.ichthyo.mm          | 145 +++++++++++++++++++++++++++++-
 4 files changed, 327 insertions(+), 3 deletions(-)
 create mode 100644 src/proc/asset/meta/error-log.cpp
 create mode 100644 src/proc/asset/meta/error-log.hpp

diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 381f1b40f..31cd7304f 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -49,6 +49,12 @@
 #include <memory>
 
 
+namespace proc {
+  namespace asset {
+    namespace meta {
+      class ErrorLog;
+} } }
+
 namespace gui {
 namespace ctrl {
   class GlobalCtx;
@@ -62,7 +68,7 @@ namespace interact {
 //  class GlobalCtx;
 //  class SpotLocator;
   
-  extern lib::idi::EntryID<ErrorLog> theErrorLog_ID;
+  extern lib::idi::EntryID<proc::asset::meta::ErrorLog> theErrorLog_ID;
   
   
   
diff --git a/src/proc/asset/meta/error-log.cpp b/src/proc/asset/meta/error-log.cpp
new file mode 100644
index 000000000..6ef173013
--- /dev/null
+++ b/src/proc/asset/meta/error-log.cpp
@@ -0,0 +1,76 @@
+/*
+  ErrorLog  -  Entity to collect and persist incident records
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+
+/** @file error-log.cpp
+ ** Implementation details of incident logging and persistence.
+ */
+
+
+#include "proc/asset/meta/error-log.hpp"
+//#include "proc/asset/struct-scheme.hpp"
+//#include "proc/assetmanager.hpp"
+//#include "lib/time/timevalue.hpp"
+//#include "lib/format-string.hpp"
+//#include "lib/util.hpp"
+
+//#include <string>
+
+//using util::_Fmt;
+//using util::cStr;
+//using util::isnil;
+//using std::string;
+
+
+namespace proc {
+namespace asset {
+namespace meta {
+  
+  namespace error = lumiera::error;
+  
+  
+ 
+  /** */
+  ErrorLog::ErrorLog (LogID const& nameID)
+    : Meta{nameID}
+    { }
+  
+  
+//  using lib::time::Time;
+//  using lib::time::TimeValue;
+  
+  
+  /** Setup of an ErrorLog: validate the settings within this builder instance,
+   *  then create an appropriately configured ErrorLog instance.
+   * @return shared_ptr holding onto the new asset::Meta, which has already been
+   *         registered with the AssetManager.
+   * @todo currently (8/2018) this is a mere placeholder, we just need an EntryID<ErrorLog>.
+   */
+  lib::P<ErrorLog>
+  Builder<ErrorLog>::commit()
+  {
+//  return new ErrorLog;
+    UNIMPLEMENTED ("how to build and properly register an error log entity");
+  }
+  
+  
+}}} // namespace asset::meta
diff --git a/src/proc/asset/meta/error-log.hpp b/src/proc/asset/meta/error-log.hpp
new file mode 100644
index 000000000..235db70b8
--- /dev/null
+++ b/src/proc/asset/meta/error-log.hpp
@@ -0,0 +1,101 @@
+/*
+  ERROR-LOG.hpp  -  Entity to collect and persist incident records
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file error-log.hpp
+ ** An entity to collect, possibly filter and persist incident records.
+ ** 
+ ** @todo 8/2018 created as mere placeholder; for now we just need an EntryID<ErrorLog>
+ **       in order to mark the corresponding receiver widget in the UI. The idea is eventually
+ **       to persist relevant messages, filtering them out as time passes. Such an incident log
+ **       would be part of the session model, thus replicating its contents into the corresponding
+ **       gui::widget::ErrorLogView -- which displays notifications without blocking the UI.
+ ** 
+ ** @see MetaFactory creating concrete asset::Meta instances
+ ** @see gui::ctrl::NotificationHub corresponding UI controller
+ ** @see gui::interact::Wizard information service in the UI
+ **
+ */
+
+#ifndef ASSET_META_ERROR_LOG_H
+#define ASSET_META_ERROR_LOG_H
+
+#include "proc/asset/meta.hpp"
+#include "lib/idi/entry-id.hpp"
+//#include "lib/time/timevalue.hpp"
+//#include "lib/symbol.hpp"
+
+
+
+namespace proc {
+namespace asset {
+namespace meta {
+  
+//  using lib::Symbol;
+//  using lib::time::Time;
+//  using lib::time::TimeVar;
+//  using lib::time::TimeValue;
+  
+  
+  class ErrorLog;
+  using PLog = lib::P<ErrorLog>;
+  using LogID = lib::idi::EntryID<ErrorLog>;
+  
+  
+  /**
+   * Receive, collect, filter and possibly persist incident records.
+   * @todo 8/2018 mere placeholder type for now, to allow defining an EntyID<ErrorLog>.
+   *       We conceptually need "the" ErrorLog entity as correspondence to the ErrorLogView in the GUI.
+   */
+  class ErrorLog
+    : public Meta
+    {
+      
+    public:
+      
+    protected:
+      ErrorLog (LogID const&);
+    };
+  
+  
+  
+  
+  
+  template<>
+  struct Builder<ErrorLog>
+    {
+      
+      /**
+       * @todo what is "the default log"??
+       */
+      Builder()
+        { }
+      
+      /** create a specific error log
+       *  configured as defined through this builder
+       */
+      lib::P<ErrorLog> commit();
+      
+    };
+  
+}}} // namespace proc::asset::meta
+#endif /*ASSET_META_ERROR_LOG_H*/
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 60e39ec73..b4a62fd18 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -14325,7 +14325,9 @@
 </node>
 </node>
 <node CREATED="1486943969999" ID="ID_1823284637" MODIFIED="1518487921078" TEXT="Wizzard">
-<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1533688050029" TEXT="Fehlerlog (notification display"/>
+<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1533998488236" TEXT="Fehlerlog (notification display)">
+<linktarget COLOR="#a9aac1" DESTINATION="ID_70134302" ENDARROW="Default" ENDINCLINATION="-1984;0;" ID="Arrow_ID_1885125683" SOURCE="ID_361019548" STARTARROW="None" STARTINCLINATION="803;-67;"/>
+</node>
 <node CREATED="1486943974590" ID="ID_1603501979" MODIFIED="1518487921078" TEXT="Hilfe (Website?)"/>
 <node CREATED="1486944977005" ID="ID_811162889" MODIFIED="1518487921078" TEXT="kontextsensitive Hilfe"/>
 <node CREATED="1488494783190" ID="ID_1886731977" MODIFIED="1518487921078" TEXT="Assistenten"/>
@@ -32085,14 +32087,153 @@
 <node CREATED="1533918425908" ID="ID_1069430929" MODIFIED="1533918430743" TEXT="Einordnung">
 <node CREATED="1533918431595" ID="ID_1121251191" MODIFIED="1533918772587" TEXT="ErrorLog(Asset)">
 <linktarget COLOR="#68788a" DESTINATION="ID_1121251191" ENDARROW="Default" ENDINCLINATION="-1644;0;" ID="Arrow_ID_146013003" SOURCE="ID_1117749960" STARTARROW="None" STARTINCLINATION="-4766;280;"/>
+<node CREATED="1533997520937" ID="ID_130549036" MODIFIED="1533997523524" TEXT="Typ">
 <node CREATED="1533918806369" ID="ID_1198682609" MODIFIED="1533918809694" TEXT="Media">
 <icon BUILTIN="button_cancel"/>
 </node>
 <node CREATED="1533918810848" ID="ID_29240989" MODIFIED="1533918815271" TEXT="Struct">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1533918821511" ID="ID_1150910919" MODIFIED="1533918823011" TEXT="Meta">
+<node CREATED="1533918821511" ID="ID_1150910919" MODIFIED="1533997535081" TEXT="Meta">
+<icon BUILTIN="forward"/>
 <node CREATED="1533919635505" ID="ID_353835069" MODIFIED="1533919642476" TEXT="pa&#xdf;t soweit schon"/>
+<node CREATED="1533920004719" ID="ID_402802807" MODIFIED="1533994722201" TEXT="was hei&#xdf;t hier &quot;immutable&quot;?">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Meta-Assets sind per Definition <i>&quot;immutable&quot;</i><br />Es gibt einen Builder
+    </p>
+  </body>
+</html></richcontent>
+<node CREATED="1533994326945" ID="ID_1821159631" MODIFIED="1533994327255" TEXT="Eigenschaften des Log"/>
+<node CREATED="1533994327584" ID="ID_780339362" MODIFIED="1533994784549" TEXT="Filter, Persistenz, Warnschwellen, Weiterleitung"/>
+<node CREATED="1533994328152" ID="ID_538198315" MODIFIED="1533994328390" TEXT="k&#xf6;nnen bei bestehendem Log nicht ge&#xe4;ndert werden"/>
+</node>
+</node>
+</node>
+<node CREATED="1533997546077" ID="ID_1270326369" MODIFIED="1533997549209" TEXT="Rolle">
+<node CREATED="1533997550413" ID="ID_1832028422" MODIFIED="1533997561821">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <i>das</i>&#160;ErrorLog
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1533997846989" ID="ID_1324960272" MODIFIED="1533997854911" TEXT="zun&#xe4;chst nur Platzhalter">
+<node CREATED="1533997938232" ID="ID_40537012" MODIFIED="1533997995641" TEXT="brauche EntryID&lt;ErrorLog&gt;">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ....weil hier ein allgemeines Schema entsteht:
+    </p>
+    <p>
+      jede Aktion, die in das UI &quot;reflektiert&quot; wird, erfolgt, indem man eine Nachricht
+    </p>
+    <p>
+      &#252;ber den UI-Bus schickt, an einen Empf&#228;nger mit bekannter ID.
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1533997855707" ID="ID_663263517" MODIFIED="1533997862414" TEXT="nomineller Empf&#xe4;nger"/>
+<node CREATED="1533997863858" ID="ID_680229716" MODIFIED="1533997880164" TEXT="entspricht dem UI">
+<node CREATED="1533997895182" ID="ID_1179742637" MODIFIED="1533997924871">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      dort gibt es eine <b>ErrorLogView</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1533998488236">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und den Controller: <b>NotificationHub</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#a9aac1" DESTINATION="ID_70134302" ENDARROW="Default" ENDINCLINATION="-1984;0;" ID="Arrow_ID_1885125683" STARTARROW="None" STARTINCLINATION="803;-67;"/>
+</node>
+</node>
+<node CREATED="1533997881703" ID="ID_405103584" MODIFIED="1533997890166" TEXT="Persistenz">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
+<node CREATED="1533997570242" ID="ID_503070656" MODIFIED="1533997575269" TEXT="spezielle Detail-Logs"/>
+<node CREATED="1533997581280" ID="ID_398592361" MODIFIED="1533997591029" TEXT="Idee: Verallgemeinerung auf Logs">
+<icon BUILTIN="idea"/>
+<node CREATED="1533997595735" ID="ID_459951978" MODIFIED="1533997703292" TEXT="selbstreferentielle Struktur">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das ist diese Idee, da&#223; eine Struktur sich selbst meta-repr&#228;sentiert;
+    </p>
+    <p>
+      dadurch werden Meta-Operationen auf gleiche Ebene gestellt wie normale Struktur-Manipulationen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1533997603741" ID="ID_1980534712" MODIFIED="1533997832361" TEXT="die Command und Event-Logs k&#xf6;nnten repr&#xe4;sentiert sein">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und dadruch w&#252;rden History-Operationen wie
+    </p>
+    <ul>
+      <li>
+        undo
+      </li>
+      <li>
+        redo
+      </li>
+      <li>
+        repeat command
+      </li>
+    </ul>
+    <p>
+      ...zu ganz normalen Manipulationen der Session, w&#252;rden ihrerseits geloggt und historisiert
+    </p>
+    <p>
+      und verlieren ihren <i>magischen Charakter</i>&#160;au&#223;erhalb der Event-Sourcing-Struktur
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
 </node>
 </node>
 </node>

From 928b4372e00237d4d2ab719b9c4963d1f0e0aeec Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 11 Aug 2018 18:06:09 +0200
Subject: [PATCH 006/178] Assets: investigating the unclear distinction between
 asset::Struct and asset::Meta (#1156)

including a kind-of Bugfix: the ctor of TimeGrid erroneously categorised it as asset::Kind STRUCT
---
 src/proc/asset/category.hpp       |  2 +-
 src/proc/asset/meta.hpp           | 11 +++++-
 src/proc/asset/meta/time-grid.cpp |  9 +++--
 src/proc/asset/meta/time-grid.hpp |  5 +--
 src/proc/asset/struct-scheme.hpp  |  6 ++--
 src/proc/asset/struct.hpp         |  1 +
 tests/41asset.tests               |  2 +-
 wiki/renderengine.html            |  9 +++--
 wiki/thinkPad.ichthyo.mm          | 57 ++++++++++++++++++++++++++++++-
 9 files changed, 87 insertions(+), 15 deletions(-)

diff --git a/src/proc/asset/category.hpp b/src/proc/asset/category.hpp
index ce6028921..aca63b08f 100644
--- a/src/proc/asset/category.hpp
+++ b/src/proc/asset/category.hpp
@@ -57,7 +57,7 @@ namespace asset {
     , VIDEO
     , EFFECT
     , CODEC
-    , STRUCT
+    , STRUCT                                                     //////////////////////////////////TICKET #1156 : do we need the distinction between STRUCT and META?
     , META
     };
   
diff --git a/src/proc/asset/meta.hpp b/src/proc/asset/meta.hpp
index 4a736cf47..245d13da9 100644
--- a/src/proc/asset/meta.hpp
+++ b/src/proc/asset/meta.hpp
@@ -61,6 +61,7 @@
 #define ASSET_META_H
 
 #include "proc/asset.hpp"
+#include "proc/asset/struct-scheme.hpp"
 #include "lib/idi/entry-id.hpp"
 #include "lib/nocopy.hpp"
 
@@ -112,6 +113,7 @@ namespace asset {
   /**
    * key abstraction: metadata, parametrisation, customisation and similar organisational traits.
    * @todo just a stub, still have to figure out the distinctive properties of asset::Meta
+   *                                                             //////////////////////////////////TICKET #1156 : do we need the distinction between STRUCT and META?
    */
   class Meta
     : public Asset
@@ -127,7 +129,14 @@ namespace asset {
         }
       
     protected:
-      Meta (Asset::Ident const& idi) : Asset(idi) {}  //////////////TODO
+      Meta (Asset::Ident const& idi)
+        : Asset{idi}
+        { }
+      
+      template<typename TY>
+      Meta (lib::idi::EntryID<TY> const& nameID)
+        : Meta{idi::getAssetIdent (nameID, META)}
+        { }
       
 //    friend class MetaFactory;  ///////////////////////////////////TODO still necessary?
     };
diff --git a/src/proc/asset/meta/time-grid.cpp b/src/proc/asset/meta/time-grid.cpp
index 4c374e573..6d173db2d 100644
--- a/src/proc/asset/meta/time-grid.cpp
+++ b/src/proc/asset/meta/time-grid.cpp
@@ -51,9 +51,12 @@ namespace meta {
   
   
  
-  /** */
+  /**
+   * @internal to be invoked indirectly by means of the Builder<TimeGrid>.
+   * @todo drafted in 2010 -- usage of the builder feels unsatisfactory as of 2018
+   */
   TimeGrid::TimeGrid (GridID const& nameID)
-    : Meta (idi::getAssetIdent (nameID))
+    : Meta{nameID}
     { }
   
   
@@ -76,7 +79,7 @@ namespace meta {
     /** @internal helper to retrieve the smart-ptr
      * from the AssetManager, then attach a further
      * smart-ptr-to-Quantiser to that, which then can be
-     * published via the \link advice.hpp "advice system"\endlink
+     * published via the [advice system](\ref advice.hpp)
      * @note this allows to use a time grid just "by name",
      *       without explicit dependence to the Session / Assets
      */
diff --git a/src/proc/asset/meta/time-grid.hpp b/src/proc/asset/meta/time-grid.hpp
index 2cf593edb..6b00a69de 100644
--- a/src/proc/asset/meta/time-grid.hpp
+++ b/src/proc/asset/meta/time-grid.hpp
@@ -22,7 +22,7 @@
 
 
 /** @file time-grid.hpp
- ** Establishing a reference scale for quantised time values.
+ ** To establish a reference scale for quantised time values.
  ** Contrary to the continuous Time values (Lumiera internal time scale),
  ** quantised time can only take on some discrete values corresponding
  ** to blocks or frames, according to the respective \em timecode format.
@@ -34,7 +34,8 @@
  ** Time grid specifications are integrated into Lumiera's framework
  ** for meta assets, automation, configuration and similar metadata.
  ** 
- ** \par using time grids
+ ** ## using time grids
+ ** 
  ** TimeGrid is an interface (ABC), but provides some actual factory
  ** functions, which can be used as a convenience shortcut to fabricate
  ** the kind of simple time grid used most often.
diff --git a/src/proc/asset/struct-scheme.hpp b/src/proc/asset/struct-scheme.hpp
index 15db48dbf..fd1f05860 100644
--- a/src/proc/asset/struct-scheme.hpp
+++ b/src/proc/asset/struct-scheme.hpp
@@ -155,9 +155,9 @@ namespace asset{
      */
     template<typename TY>
     inline Asset::Ident
-    getAssetIdent (lib::idi::EntryID<TY> const& entryID)
-    {
-      Category cat (STRUCT, idi::StructTraits<TY>::catFolder());
+    getAssetIdent (lib::idi::EntryID<TY> const& entryID, asset::Kind assetKind =STRUCT)
+    {                                                    //////////////////////////////////////////TICKET #1156 : do we need the distinction between STRUCT and META?
+      Category cat (assetKind, idi::StructTraits<TY>::catFolder());
       return Asset::Ident (entryID.getSym(), cat);
     }
     
diff --git a/src/proc/asset/struct.hpp b/src/proc/asset/struct.hpp
index 4ed21312e..bf5e58a2f 100644
--- a/src/proc/asset/struct.hpp
+++ b/src/proc/asset/struct.hpp
@@ -108,6 +108,7 @@ namespace asset {
    *       The idea is to have a generic mechanism for attaching properties and relations.
    *       This will become relevant once we build the real query subsystem.
    *       Right now (as of 1/2015), asset::Struct is just an ID provider.
+   *                                                             //////////////////////////////////TICKET #1156 : do we need the distinction between STRUCT and META?
    */
   class Struct : public Asset
     {
diff --git a/tests/41asset.tests b/tests/41asset.tests
index 3bfa9db35..b88b05b67 100644
--- a/tests/41asset.tests
+++ b/tests/41asset.tests
@@ -58,6 +58,6 @@ END
 
 
 TEST "Simple TimeGrid" TimeGridBasics_test <<END
-out-lit: simple PAL Grid: (STRUCT/time-scales:lumi.grid(25FPS_0) v1)
+out-lit: simple PAL Grid: (META/time-scales:lumi.grid(25FPS_0) v1)
 return: 0
 END
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index ccaa9b485..6394605e7 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -860,7 +860,7 @@ Even if the low-level memory manager(s) may use raw storage, we require that the
 &amp;rarr; see MemoryManagement
 </pre>
 </div>
-<div title="Asset" modifier="Ichthyostega" created="200708100337" modified="201808101636" tags="def classes img" changecount="2">
+<div title="Asset" modifier="Ichthyostega" created="200708100337" modified="201808111601" tags="def classes img" changecount="4">
 <pre>Asset management is a subsystem on its own. Assets are &quot;things&quot; that can be loaded into a session, like Media, Clips, Effects, Transitions. It is the &quot;bookkeeping view&quot;, while the Objects in the Session relate to the &quot;manipulation and process view&quot;. Some Assets can be //loaded// and a collection of Assets is saved with each Session. Besides, there is a collection of basic Assets always available by default.
 
 The Assets are important reference points holding the information needed to access external resources. For example, an Clip asset can reference a Media asset, which in turn holds the external filename from which to get the media stream. For Effects, the situation is similar. Assets thus serve two quite distinct purposes. One is to load, list, group search and browse them, and to provide an entry point to create new or get at existing MObject in the Session, while the other purpose is to provide attribute and property information to the inner parts of the engine, while at the same time isolating and decoupling them from environmental details. 
@@ -900,6 +900,8 @@ is how to implement the relationship between [[MObject]]s and Assets. Do we use
 
   //9/07: currently implementing it as follows: use a refcounting-ptr from Clip-~MObject to asset::Media while maintaining a dependency network between Asset objects. We'll see if this approach is viable//
 
+{{red{NOTE 8/2018}}} there seems to be a fuzziness surrounding the distinction between StructAsset and MetaAsset.
+I am suspicious this is a distinction //merely derived from first principles...// &amp;rarr; {{red{Ticket #1156}}}
 </pre>
 </div>
 <div title="AssetCreation" modifier="Ichthyostega" created="200709040307" modified="201002272321" tags="operational impl">
@@ -4210,10 +4212,11 @@ For the case here in question this seems to be the __R__esource __A__llocation _
 And, last but not least, doing large scale allocations is the job of the backend. Exceptions being long-lived objects, like the session or the sequences, which are created once and don't bear the danger of causing memory pressure. Generally speaking, client code shouldn't issue &quot;new&quot; and &quot;delete&quot; when it comes in handy. Questions of setup and lifecycle should allways be delegated, typically through the usage of some [[factory|Factories]], which might return the product conveniently wrapped into a RAII style handle. Memory allocation is crucial for performance, and needs to be adapted to the actual platform -- which is impossible unless abstracted and treated as a separate concern.
 </pre>
 </div>
-<div title="MetaAsset" modifier="Ichthyostega" created="201012290320" modified="201808101637" tags="def" changecount="2">
-<pre>This category encompasses the various aspects of the way the application controls and manages its own behaviour. They are more related to the way the application behaves, as opposed to the way the edited data is structured and organised (which is the realm of [[structural assets|StructAsset]])
+<div title="MetaAsset" modifier="Ichthyostega" created="201012290320" modified="201808111603" tags="def" changecount="4">
+<pre>This category encompasses the various aspects of the way the application controls and manages its own behaviour. They are more related to the way the application behaves, as opposed to the way the edited data is structured and organised (which is the realm of [[structural assets|StructAsset]]) &amp;rarr; {{red{Ticket #1156}}}
 * StreamType &amp;rarr; a type system for describing and relating media data streams
 * ScaleGrid &amp;rarr; to manage time scales and frame alignment
+* {{{ErrorLog}}} &amp;rarr; collect incident records
 
 !accessing meta assets
 It turns out that all meta assets follow a distinct usage pattern: //they aren't built as individual entities.// Either, they are introduced into the system as part of a larger scale configuration activity, or they are //derived from category.// The latter fits in with a prototype-like approach; initially, the individual entry just serves to keep track of a categorisation, while at some point, such a link into a describing category may evolve into a local differentiation of some settings.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b4a62fd18..cbb1e9430 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32085,6 +32085,57 @@
 <node CREATED="1533918403071" ID="ID_277977903" MODIFIED="1533918404515" TEXT="Meta"/>
 </node>
 <node CREATED="1533918425908" ID="ID_1069430929" MODIFIED="1533918430743" TEXT="Einordnung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534001954612" ID="ID_1527156035" MODIFIED="1534001972543" TEXT="Probleme">
+<icon BUILTIN="messagebox_warning"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534001984536" ID="ID_1186986383" MODIFIED="1534002025741" TEXT="#1156 clarify distinction between asset::Struct and asset::Meta">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534002074828" ID="ID_867232883" MODIFIED="1534002083668" TEXT="Asymetrie in asset::Category">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534002102456" ID="ID_101543995" MODIFIED="1534002106435" TEXT="benutzer-orientiert"/>
+<node CREATED="1534002106999" ID="ID_354946108" MODIFIED="1534002112546" TEXT="GUI ist aber noch nicht gebaut"/>
+<node CREATED="1534002113086" ID="ID_1894075831" MODIFIED="1534002172804" TEXT="Audio und Video werden eigens unterschieden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...obwohl die betreffenden Assets in die Kategorie &quot;Medien&quot; fallen,
+    </p>
+    <p>
+      und wir einen eigenen StreamType definieren wollen, also explizit die Art der Medien offen lassen.
+    </p>
+    <p>
+      Ganz prominent fehlt hier also z.B: MIDI
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1534002180893" ID="ID_1074039128" MODIFIED="1534002196087" TEXT="daf&#xfc;r erscheint die Unterscheidung STRUCT vs. META schwammig"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534002037961" ID="ID_95419141" MODIFIED="1534002049833" TEXT="Erzeugung und Lebenszyklus">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534002202098" ID="ID_1411648485" MODIFIED="1534002215541" TEXT="diese Auto-Regisierung"/>
+<node CREATED="1534002225888" ID="ID_138566211" MODIFIED="1534002272126" TEXT="smart-Ptr als Handle nicht immer sinnvoll">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...n&#228;mlich genau <i>nicht</i>&#160;f&#252;r alle Assets,
+    </p>
+    <p>
+      die Aufgrund von Klassifikationen automatisch bereits existieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
 <node CREATED="1533918431595" ID="ID_1121251191" MODIFIED="1533918772587" TEXT="ErrorLog(Asset)">
 <linktarget COLOR="#68788a" DESTINATION="ID_1121251191" ENDARROW="Default" ENDINCLINATION="-1644;0;" ID="Arrow_ID_146013003" SOURCE="ID_1117749960" STARTARROW="None" STARTINCLINATION="-4766;280;"/>
 <node CREATED="1533997520937" ID="ID_130549036" MODIFIED="1533997523524" TEXT="Typ">
@@ -32183,7 +32234,11 @@
 <icon BUILTIN="hourglass"/>
 </node>
 </node>
-<node CREATED="1533997570242" ID="ID_503070656" MODIFIED="1533997575269" TEXT="spezielle Detail-Logs"/>
+<node CREATED="1533997570242" ID="ID_503070656" MODIFIED="1533997575269" TEXT="spezielle Detail-Logs">
+<node CREATED="1534002311748" ID="ID_440257353" MODIFIED="1534002317208" TEXT="geplant/Idee">
+<icon BUILTIN="idea"/>
+</node>
+</node>
 <node CREATED="1533997581280" ID="ID_398592361" MODIFIED="1533997591029" TEXT="Idee: Verallgemeinerung auf Logs">
 <icon BUILTIN="idea"/>
 <node CREATED="1533997595735" ID="ID_459951978" MODIFIED="1533997703292" TEXT="selbstreferentielle Struktur">

From f872e222169125d28ddcc06ec945aff99411a405 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 11 Aug 2018 19:43:57 +0200
Subject: [PATCH 007/178] Assets: draft how the global ErrorLog asset could be
 created

---
 src/proc/asset.hpp                            |  2 +
 src/proc/asset/meta.cpp                       |  7 ++-
 src/proc/asset/meta/error-log.cpp             | 40 ++++++++++----
 src/proc/asset/meta/error-log.hpp             | 16 +++++-
 src/proc/asset/meta/time-grid.cpp             | 16 +++---
 src/proc/asset/meta/time-grid.hpp             | 18 +++----
 src/proc/asset/struct-scheme.hpp              |  2 +-
 src/proc/assetmanager.cpp                     |  3 ++
 tests/core/proc/asset/create-asset-test.cpp   | 53 +++++++++++++++----
 .../proc/asset/meta/time-grid-basics-test.cpp | 10 ++--
 10 files changed, 123 insertions(+), 44 deletions(-)

diff --git a/src/proc/asset.hpp b/src/proc/asset.hpp
index 5e1cec4c2..1a0905176 100644
--- a/src/proc/asset.hpp
+++ b/src/proc/asset.hpp
@@ -101,6 +101,8 @@ namespace asset {
    * @see AssetManager#getID generating ID values
    * @see asset::Media
    * @see ID<asset::Media>
+   * 
+   * @todo it would be desirable to use EntryID instead ///////////////////////////////////////////TICKET #739 : make identification schemes compatible 
    */
   template<class KIND>
   class ID
diff --git a/src/proc/asset/meta.cpp b/src/proc/asset/meta.cpp
index 404eda461..b30eb1590 100644
--- a/src/proc/asset/meta.cpp
+++ b/src/proc/asset/meta.cpp
@@ -96,6 +96,7 @@ namespace asset {
    /**************************************************/
 
 #include "proc/asset/meta/time-grid.hpp"
+#include "proc/asset/meta/error-log.hpp"
 
 
 namespace proc {
@@ -106,7 +107,11 @@ namespace asset {
   using meta::TimeGrid;
   
   template Builder<TimeGrid>  MetaFactory::operator() (EntryID<TimeGrid>);
-  
   template Builder<TimeGrid>  MetaFactory::operator() (Descriptor const&, EntryID<TimeGrid>);
   
+  using meta::ErrorLog;
+  
+  template Builder<ErrorLog>  MetaFactory::operator() (EntryID<ErrorLog>);
+  template Builder<ErrorLog>  MetaFactory::operator() (Descriptor const&, EntryID<ErrorLog>);
+  
 }} // namespace proc::asset
diff --git a/src/proc/asset/meta/error-log.cpp b/src/proc/asset/meta/error-log.cpp
index 6ef173013..81d9db22f 100644
--- a/src/proc/asset/meta/error-log.cpp
+++ b/src/proc/asset/meta/error-log.cpp
@@ -27,18 +27,19 @@
 
 
 #include "proc/asset/meta/error-log.hpp"
-//#include "proc/asset/struct-scheme.hpp"
-//#include "proc/assetmanager.hpp"
+#include "proc/asset/struct-scheme.hpp"
+#include "proc/assetmanager.hpp"
 //#include "lib/time/timevalue.hpp"
 //#include "lib/format-string.hpp"
-//#include "lib/util.hpp"
+#include "lib/util.hpp"
 
 //#include <string>
 
 //using util::_Fmt;
 //using util::cStr;
-//using util::isnil;
+using util::isnil;
 //using std::string;
+using std::dynamic_pointer_cast;
 
 
 namespace proc {
@@ -48,13 +49,34 @@ namespace meta {
   namespace error = lumiera::error;
   
   
- 
+  /** storage for an unique, globally known ID.
+   * Used to address the corresponding ErrorLogView in the UI
+   * @todo 8/2018 for now this is a mere placeholder, but someone
+   *       need to build a singleton asset to incorporate this eventually ///////////////////////////////////TICKET #1157
+   */
+  LogID theErrorLog_ID{"global_ErrorLog"};
+  
+  
   /** */
   ErrorLog::ErrorLog (LogID const& nameID)
     : Meta{nameID}
     { }
   
   
+  PLog
+  ErrorLog::global()
+  {
+    Asset::Ident ident = asset::idi::getAssetIdent (theErrorLog_ID, META);
+    ID<Asset> globalLogID = AssetManager::instance().getID(ident);
+                            /////////////////////////////////////////////////////////////////////////////////TICKET #739 sort out this mess with asset::ID vs EntryID
+    
+    if (not AssetManager::instance().known (globalLogID))
+      return asset::Meta::create (theErrorLog_ID)
+                         .commit();
+    else
+      return dynamic_pointer_cast<ErrorLog> (AssetManager::instance().getAsset (globalLogID));
+  }
+
 //  using lib::time::Time;
 //  using lib::time::TimeValue;
   
@@ -63,13 +85,13 @@ namespace meta {
    *  then create an appropriately configured ErrorLog instance.
    * @return shared_ptr holding onto the new asset::Meta, which has already been
    *         registered with the AssetManager.
-   * @todo currently (8/2018) this is a mere placeholder, we just need an EntryID<ErrorLog>.
+   * @todo currently (8/2018) this is a mere placeholder, we just need an EntryID<ErrorLog>.  ///////////////TICKET #1157
    */
   lib::P<ErrorLog>
   Builder<ErrorLog>::commit()
-  {
-//  return new ErrorLog;
-    UNIMPLEMENTED ("how to build and properly register an error log entity");
+  { 
+    ASSERT (isnil (nameID), "only the single global Error Log is implemented for now");  ////////////////////TICKET #1157 : and the entity created here is bare of any functionality
+    return AssetManager::wrap (*new ErrorLog{theErrorLog_ID});
   }
   
   
diff --git a/src/proc/asset/meta/error-log.hpp b/src/proc/asset/meta/error-log.hpp
index 235db70b8..6f600ce95 100644
--- a/src/proc/asset/meta/error-log.hpp
+++ b/src/proc/asset/meta/error-log.hpp
@@ -44,12 +44,15 @@
 //#include "lib/time/timevalue.hpp"
 //#include "lib/symbol.hpp"
 
+#include <string>
+
 
 
 namespace proc {
 namespace asset {
 namespace meta {
   
+  using std::string;
 //  using lib::Symbol;
 //  using lib::time::Time;
 //  using lib::time::TimeVar;
@@ -60,6 +63,8 @@ namespace meta {
   using PLog = lib::P<ErrorLog>;
   using LogID = lib::idi::EntryID<ErrorLog>;
   
+  extern LogID theErrorLog_ID;
+  
   
   /**
    * Receive, collect, filter and possibly persist incident records.
@@ -71,9 +76,15 @@ namespace meta {
     {
       
     public:
+      /** retrieve (possibly create) the global singleton asset
+       *  corresponding to "the" global error log, as shown in the UI.
+       */
+      static PLog global();
       
     protected:
       ErrorLog (LogID const&);
+      
+      friend class Builder<ErrorLog>;
     };
   
   
@@ -83,11 +94,12 @@ namespace meta {
   template<>
   struct Builder<ErrorLog>
     {
-      
+      string nameID;
       /**
        * @todo what is "the default log"??
        */
-      Builder()
+      Builder(string name)
+        : nameID{name}
         { }
       
       /** create a specific error log
diff --git a/src/proc/asset/meta/time-grid.cpp b/src/proc/asset/meta/time-grid.cpp
index 6d173db2d..52b000553 100644
--- a/src/proc/asset/meta/time-grid.cpp
+++ b/src/proc/asset/meta/time-grid.cpp
@@ -145,19 +145,19 @@ namespace meta {
   lib::P<TimeGrid>
   Builder<TimeGrid>::commit()
   {
-    if (predecessor_)
+    if (predecessor)
       throw error::Invalid("compound and variable time grids are a planned feature"
                           , error::LUMIERA_ERROR_UNIMPLEMENTED);
-    ENSURE (fps_, "infinite grid should have been detected by FrameRate ctor");
+    ENSURE (fps, "infinite grid should have been detected by FrameRate ctor");
     
-    if (isnil (id_))
+    if (isnil (id))
       {
         _Fmt gridIdFormat("grid(%f_%d)");
-        id_ = string(gridIdFormat % fps_ % _raw(origin_));
+        id = string(gridIdFormat % fps % _raw(origin));
       }
-    GridID nameID (id_);
+    GridID nameID (id);
     
-    return publishWrapped (*new SimpleTimeGrid(origin_, fps_, nameID));
+    return publishWrapped (*new SimpleTimeGrid(origin, fps, nameID));
   }
   
   
@@ -175,8 +175,8 @@ namespace meta {
   {
     string name(gridID);
     Builder<TimeGrid> spec(name);
-    spec.fps_ = frames_per_second;
-    spec.origin_ = origin;
+    spec.fps = frames_per_second;
+    spec.origin = origin;
     
     return spec.commit();
   }
diff --git a/src/proc/asset/meta/time-grid.hpp b/src/proc/asset/meta/time-grid.hpp
index 6b00a69de..dd341b5b6 100644
--- a/src/proc/asset/meta/time-grid.hpp
+++ b/src/proc/asset/meta/time-grid.hpp
@@ -104,17 +104,17 @@ namespace meta {
   template<>
   struct Builder<TimeGrid>
     {
-      string id_;
+      string id;
       
-      FrameRate fps_;
-      TimeVar origin_;
+      FrameRate fps;
+      TimeVar origin;
       
       /** when building a compound or variable grid,
-       *  the predecessor is the grid active \em before
+       *  the predecessor is the grid active _before_
        *  the origin of this (local) grid.
        * @todo currently not supported (as of 12/2010)
        */
-      lib::P<TimeGrid> predecessor_;
+      lib::P<TimeGrid> predecessor;
       
       /** 
        * initialise to blank (zero).
@@ -122,10 +122,10 @@ namespace meta {
        * in order to create a usable TimeGrid
        */
       Builder(string const& nameID  ="")
-        : id_(nameID)
-        , fps_(1)
-        , origin_(TimeValue(0))
-        , predecessor_()
+        : id {nameID}
+        , fps{1}
+        , origin{TimeValue(0)}
+        , predecessor{}
         { }
       
       /** create a time grid
diff --git a/src/proc/asset/struct-scheme.hpp b/src/proc/asset/struct-scheme.hpp
index fd1f05860..c807ed5b4 100644
--- a/src/proc/asset/struct-scheme.hpp
+++ b/src/proc/asset/struct-scheme.hpp
@@ -151,7 +151,7 @@ namespace asset{
      *  The remaining fields are filled in with hardwired defaults.
      * @note there is a twist, as this asset identity tuple generates
      *       a different hash as the EntryID. It would be desirable
-     *       to make those two addressing systems interchangeable.      /////////////TICKET #739
+     *       to make those two addressing systems interchangeable. ////////////////////////////////TICKET #739 : make identification schemes compatible
      */
     template<typename TY>
     inline Asset::Ident
diff --git a/src/proc/assetmanager.cpp b/src/proc/assetmanager.cpp
index 509b6b98c..8b572f72a 100644
--- a/src/proc/assetmanager.cpp
+++ b/src/proc/assetmanager.cpp
@@ -254,6 +254,7 @@ namespace asset {
 #include "proc/asset/timeline.hpp"
 #include "proc/asset/sequence.hpp"
 #include "proc/asset/meta/time-grid.hpp"
+#include "proc/asset/meta/error-log.hpp"
 
 namespace proc {
 namespace asset {
@@ -278,7 +279,9 @@ namespace asset {
   template P<Sequence> AssetManager::wrap (const Sequence& asset);
   
   using meta::TimeGrid;
+  using meta::ErrorLog;
   template P<TimeGrid> AssetManager::wrap (const TimeGrid& asset);
+  template P<ErrorLog> AssetManager::wrap (const ErrorLog& asset);
   
   
 }} // namespace proc::asset
diff --git a/tests/core/proc/asset/create-asset-test.cpp b/tests/core/proc/asset/create-asset-test.cpp
index c81140b08..8152d4bb6 100644
--- a/tests/core/proc/asset/create-asset-test.cpp
+++ b/tests/core/proc/asset/create-asset-test.cpp
@@ -27,18 +27,24 @@
 
 #include "include/logging.h"
 #include "lib/test/run.hpp"
-#include "lib/util.hpp"
+#include "lib/test/test-helper.hpp"
 
 #include "proc/assetmanager.hpp"
 #include "proc/asset/media.hpp"
 #include "proc/asset/proc.hpp"
+#include "proc/asset/meta/time-grid.hpp"
+#include "proc/asset/meta/error-log.hpp"
 
 #include "proc/asset/asset-diagnostics.hpp"
 #include "backend/media-access-mock.hpp"
+#include "lib/time/timevalue.hpp"
 #include "lib/depend-inject.hpp"
+#include "lib/util.hpp"
 
 using util::isnil;
 using std::string;
+using lib::time::FrameRate;
+using lib::test::randStr;
 
 
 namespace proc {
@@ -63,6 +69,7 @@ namespace test {
           
           createMedia();
           factoryVariants();
+          createMetaAssets();
 
           if (!isnil (arg))
             dumpAssetManager();
@@ -71,7 +78,7 @@ namespace test {
 
 
                                                           ////////////////////////////////////TICKET #589
-      typedef lib::P<Media> PM;                                                          /////TODO: transition to P<>
+      using PM = lib::P<Media>;
 
       /** @test Creating and automatically registering Asset instances.
        *        Re-Retrieving the newly created objects from AssetManager.
@@ -79,7 +86,8 @@ namespace test {
        *        different kinds of Assets by ID, querying with the
        *        wrong Category and querying unknown IDs.
        */
-      void createMedia()
+      void
+      createMedia()
         {
           Category cat(VIDEO,"bin1");
           Asset::Ident key("test-1", cat, "ichthyo", 5);
@@ -89,7 +97,7 @@ namespace test {
 
           // Assets have been registered and can be retrieved by ID
           AssetManager& aMang = AssetManager::instance();
-          PM registered;                                                         /////TODO: transition to P<>
+          PM registered;
           registered = aMang.getAsset (mm1->getID());
           CHECK (registered == mm1);
           registered = aMang.getAsset (mm2->getID());
@@ -167,7 +175,8 @@ namespace test {
        *        creation machinery. Covers filling out Asset's
        *        datafields, amending missing pieces of information.
        */
-      void factoryVariants()
+      void
+      factoryVariants()
         {
           PM candi;
 
@@ -185,19 +194,19 @@ namespace test {
 
           candi = asset::Media::create(string("test-3.wav"), Category(AUDIO));
           CHECK ( checkProperties (candi, Asset::Ident("test-3", Category(AUDIO), "lumi", 1)
-                                         , "test-3.wav"));
+                                        , "test-3.wav"));
 
           candi = asset::Media::create("some/path/test-4.wav", Category(AUDIO));
           CHECK ( checkProperties (candi, Asset::Ident("test-4", Category(AUDIO), "lumi", 1)
-                                         , "some/path/test-4.wav"));
+                                        , "some/path/test-4.wav"));
 
           candi = asset::Media::create("", Category(AUDIO,"sub/bin"));
           CHECK ( checkProperties (candi, Asset::Ident("nil", Category(AUDIO,"sub/bin"), "lumi", 1)
-                                         , ""));
+                                        , ""));
 
           candi = asset::Media::create("", AUDIO);
           CHECK ( checkProperties (candi, Asset::Ident("nil", Category(AUDIO), "lumi", 1)
-                                         , ""));
+                                        , ""));
         }
 
       bool checkProperties (PM object, Asset::Ident identity, string filename)
@@ -205,6 +214,32 @@ namespace test {
           return identity == object->ident
               && filename == object->getFilename();
         }
+      
+      
+      void
+      createMetaAssets()
+        {
+          using asset::meta::GridID;
+          using asset::meta::PGrid;
+          
+          GridID myGrID (randStr(8));
+          auto gridSpec = asset::Meta::create (myGrID);
+          gridSpec.fps = FrameRate{23};
+          PGrid myGrid = gridSpec.commit();
+          
+          CHECK (myGrid);
+          CHECK (myGrid->ident.name == myGrID.getSym());                    ////////////////////////////////TICKET #739 : assets should use EntryID instead of asset::ID
+          
+          CHECK (AssetManager::instance().known (myGrid->getID()));
+          CHECK (myGrid == AssetManager::instance().getAsset (myGrid->getID()));
+          
+          // for the ErrorLog assert, as of 8/2018 there is just one single global placeholder entity available
+          asset::meta::PLog globalLog = asset::meta::ErrorLog::global();    /////////////////////////////////TICKET #1157 : what's the purpose of this ErrorLog Asset after all??
+          
+          
+          CHECK (globalLog->ident.name == meta::theErrorLog_ID.getSym());
+          CHECK (AssetManager::instance().known (globalLog->getID()));
+        }
     };
 
 
diff --git a/tests/core/proc/asset/meta/time-grid-basics-test.cpp b/tests/core/proc/asset/meta/time-grid-basics-test.cpp
index a5cae3e7c..82d2d93c6 100644
--- a/tests/core/proc/asset/meta/time-grid-basics-test.cpp
+++ b/tests/core/proc/asset/meta/time-grid-basics-test.cpp
@@ -85,12 +85,12 @@ namespace test {
           GridID myGrID (randStr(8));
           GridBuilder spec = asset::Meta::create (myGrID);
           
-          CHECK ( spec.fps_    == 1);
-          CHECK ( spec.origin_ == TimeValue(0));
-          CHECK (!spec.predecessor_);
+          CHECK ( spec.fps    == 1);
+          CHECK ( spec.origin == TimeValue(0));
+          CHECK (!spec.predecessor);
           
-          spec.fps_    = testFps;
-          spec.origin_ = testOrigin;
+          spec.fps    = testFps;
+          spec.origin = testOrigin;
           
           PGrid myGrid = spec.commit();
           CHECK (myGrid);

From 53c47a6fccb8eb79119fc522d2e326e4fd509603 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 11 Aug 2018 23:55:42 +0200
Subject: [PATCH 008/178] Assets: verify creation of ErrorLog meta-Asset

---
 src/proc/asset/meta/error-log.cpp           |  6 +++---
 tests/core/proc/asset/asset-diagnostics.hpp |  7 ++++---
 tests/core/proc/asset/create-asset-test.cpp |  6 +++++-
 tests/core/proc/asset/typed-id-test.cpp     |  2 +-
 wiki/thinkPad.ichthyo.mm                    | 14 ++++++++++++--
 5 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/src/proc/asset/meta/error-log.cpp b/src/proc/asset/meta/error-log.cpp
index 81d9db22f..9f6cd9ef3 100644
--- a/src/proc/asset/meta/error-log.cpp
+++ b/src/proc/asset/meta/error-log.cpp
@@ -31,13 +31,13 @@
 #include "proc/assetmanager.hpp"
 //#include "lib/time/timevalue.hpp"
 //#include "lib/format-string.hpp"
-#include "lib/util.hpp"
+//#include "lib/util.hpp"
 
 //#include <string>
 
 //using util::_Fmt;
 //using util::cStr;
-using util::isnil;
+//using util::isnil;
 //using std::string;
 using std::dynamic_pointer_cast;
 
@@ -90,7 +90,7 @@ namespace meta {
   lib::P<ErrorLog>
   Builder<ErrorLog>::commit()
   { 
-    ASSERT (isnil (nameID), "only the single global Error Log is implemented for now");  ////////////////////TICKET #1157 : and the entity created here is bare of any functionality
+    ASSERT (nameID == theErrorLog_ID.getSym(), "only the single global Error Log is implemented for now");///TICKET #1157 : and the entity created here is bare of any functionality
     return AssetManager::wrap (*new ErrorLog{theErrorLog_ID});
   }
   
diff --git a/tests/core/proc/asset/asset-diagnostics.hpp b/tests/core/proc/asset/asset-diagnostics.hpp
index 4f93636cb..2e91b5e71 100644
--- a/tests/core/proc/asset/asset-diagnostics.hpp
+++ b/tests/core/proc/asset/asset-diagnostics.hpp
@@ -54,14 +54,14 @@ namespace proc {
 namespace asset {
   
   inline void
-  dump (PcAsset& aa)
+  dump (PcAsset const& aa)
   {
     if (!aa)
       cout << "Asset(NULL)\n";
     else
       {
         _Fmt fmt("%s %|50T.| id=%s  adr=%p smart-ptr=%p use-count=%u");
-        cout << fmt % aa % aa->getID() % aa.get() % &aa % (aa.use_count() - 1) << "\n";
+        cout << fmt % aa % aa->getID() % (void*)aa.get() % &aa % (aa.use_count() - 1) << "\n";
   }   }
   
   
@@ -70,7 +70,8 @@ namespace asset {
   {
     list<PcAsset> assets (AssetManager::instance().listContent());
     cout << "----all-registered-Assets----\n";
-    for_each (assets, bind (&dump, _1));
+    for (auto const& pA : assets)
+      dump (pA);
   }
   
   
diff --git a/tests/core/proc/asset/create-asset-test.cpp b/tests/core/proc/asset/create-asset-test.cpp
index 8152d4bb6..ece46790f 100644
--- a/tests/core/proc/asset/create-asset-test.cpp
+++ b/tests/core/proc/asset/create-asset-test.cpp
@@ -236,9 +236,13 @@ namespace test {
           // for the ErrorLog assert, as of 8/2018 there is just one single global placeholder entity available
           asset::meta::PLog globalLog = asset::meta::ErrorLog::global();    /////////////////////////////////TICKET #1157 : what's the purpose of this ErrorLog Asset after all??
           
-          
           CHECK (globalLog->ident.name == meta::theErrorLog_ID.getSym());
           CHECK (AssetManager::instance().known (globalLog->getID()));
+          CHECK (2 == globalLog.use_count()); // AssetManager also holds a reference
+          
+          PAsset furtherRef = asset::meta::ErrorLog::global();
+          CHECK (3 == globalLog.use_count());
+          CHECK (furtherRef == globalLog);
         }
     };
 
diff --git a/tests/core/proc/asset/typed-id-test.cpp b/tests/core/proc/asset/typed-id-test.cpp
index 7fdc569f3..737b71901 100644
--- a/tests/core/proc/asset/typed-id-test.cpp
+++ b/tests/core/proc/asset/typed-id-test.cpp
@@ -111,7 +111,7 @@ namespace test{
    *       - re-access the instances just by symbolic ID
    *       - verify the registration is cleaned up automatically.
    * 
-   * @todo partially unimplemented and thus commented out ////////////////////TICKET #599
+   * @todo draft from 2010 -- partially unimplemented and thus commented out //////////////////////////////////////////STICKET #599
    * 
    * @see typed-id.hpp interface covered here
    * @see typed-lookup.cpp implementation
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index cbb1e9430..f4079ede1 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -14325,7 +14325,7 @@
 </node>
 </node>
 <node CREATED="1486943969999" ID="ID_1823284637" MODIFIED="1518487921078" TEXT="Wizzard">
-<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1533998488236" TEXT="Fehlerlog (notification display)">
+<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1534025106095" TEXT="Fehlerlog (notification display)">
 <linktarget COLOR="#a9aac1" DESTINATION="ID_70134302" ENDARROW="Default" ENDINCLINATION="-1984;0;" ID="Arrow_ID_1885125683" SOURCE="ID_361019548" STARTARROW="None" STARTINCLINATION="803;-67;"/>
 </node>
 <node CREATED="1486943974590" ID="ID_1603501979" MODIFIED="1518487921078" TEXT="Hilfe (Website?)"/>
@@ -32053,6 +32053,10 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1481777343548" ID="ID_354877994" MODIFIED="1518487921096" TEXT="irgendwann post main()"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534025083017" ID="ID_1484082332" MODIFIED="1534025124521" TEXT="weiterlaufende Render-Prozesse">
+<linktarget COLOR="#eb4053" DESTINATION="ID_1484082332" ENDARROW="Default" ENDINCLINATION="568;0;" ID="Arrow_ID_936372806" SOURCE="ID_1126518975" STARTARROW="Default" STARTINCLINATION="291;0;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 <node CREATED="1481777355747" ID="ID_1804595708" MODIFIED="1518487921096" TEXT="Subsystem-&gt;end">
 <node CREATED="1481777368330" ID="ID_1933237483" MODIFIED="1518487921096" TEXT="Halte-Nachricht"/>
@@ -32134,6 +32138,12 @@
 </html>
 </richcontent>
 </node>
+<node CREATED="1534024950739" ID="ID_1395279965" MODIFIED="1534024969582" TEXT="Races und m&#xf6;gliche Kollisionen &#xfc;berall">
+<icon BUILTIN="clanbomber"/>
+</node>
+<node CREATED="1534025017601" ID="ID_1126518975" MODIFIED="1534025124521" TEXT="Zusammenhang mit dem Session-Lebenszyklus">
+<arrowlink COLOR="#eb4053" DESTINATION="ID_1484082332" ENDARROW="Default" ENDINCLINATION="568;0;" ID="Arrow_ID_936372806" STARTARROW="Default" STARTINCLINATION="291;0;"/>
+</node>
 </node>
 </node>
 <node CREATED="1533918431595" ID="ID_1121251191" MODIFIED="1533918772587" TEXT="ErrorLog(Asset)">
@@ -32215,7 +32225,7 @@
 </html>
 </richcontent>
 </node>
-<node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1533998488236">
+<node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1534025106095">
 <richcontent TYPE="NODE"><html>
   <head>
     

From c2c25f813474b96b805c856166524b648dff83ff Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 12 Aug 2018 00:38:32 +0200
Subject: [PATCH 009/178] NotificationDisplay: define and include the unique
 error-Log ID

---
 src/gui/id-scheme.hpp             |  6 +++++-
 src/gui/interact/wizard.hpp       |  9 ++++++---
 src/gui/notification-service.cpp  |  3 +++
 src/proc/asset/meta/error-log.cpp |  2 +-
 src/proc/asset/meta/error-log.hpp |  2 +-
 wiki/thinkPad.ichthyo.mm          | 30 +++++++++++++++++++++++++++---
 6 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/src/gui/id-scheme.hpp b/src/gui/id-scheme.hpp
index 94bb0ca48..6b225ac70 100644
--- a/src/gui/id-scheme.hpp
+++ b/src/gui/id-scheme.hpp
@@ -63,6 +63,10 @@
 namespace proc {
   namespace asset {
     class Timeline;
+    
+    namespace meta {
+      class ErrorLog;
+    }
   }
 }
 
@@ -103,7 +107,7 @@ namespace gui {
     template<>
     struct Descriptor<ErrorLogView>
       {
-        ///////////////////////////////////////////////////////////////////////////////////////////TICKET #1105 : need a model placeholder to represent UI specific global entities
+        using Model = proc::asset::meta::ErrorLog;
         
         ///////////////////////////////////////////////////////////////////////////////////////////TICKET #1105 : consider use of a DSL to configure component view access 
         //
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 31cd7304f..213115302 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -53,9 +53,13 @@ namespace proc {
   namespace asset {
     namespace meta {
       class ErrorLog;
+      
+      extern lib::idi::EntryID<ErrorLog> theErrorLog_ID;
 } } }
 
 namespace gui {
+  using ID = lib::idi::BareEntryID const&;
+  
 namespace ctrl {
   class GlobalCtx;
   class NotificationHub;
@@ -65,11 +69,8 @@ namespace interact {
   using std::unique_ptr;
 //  using std::string;
   
-//  class GlobalCtx;
 //  class SpotLocator;
   
-  extern lib::idi::EntryID<proc::asset::meta::ErrorLog> theErrorLog_ID;
-  
   
   
   /**
@@ -89,6 +90,8 @@ namespace interact {
      ~Wizard ();
       
       void show_HelpAbout();
+      
+      static ID getErrorLogID() { return proc::asset::meta::theErrorLog_ID; }
     private:
       
     };
diff --git a/src/gui/notification-service.cpp b/src/gui/notification-service.cpp
index 0807df973..f3cdc5032 100644
--- a/src/gui/notification-service.cpp
+++ b/src/gui/notification-service.cpp
@@ -48,6 +48,8 @@
 #include "gui/ctrl/ui-manager.hpp"
 #include "gui/ctrl/ui-dispatcher.hpp"
 #include "gui/notification-service.hpp"
+#include "gui/interact/wizard.hpp"
+
 #include "lib/diff/mutation-message.hpp"
 #include "lib/diff/gen-node.hpp"
 #include "include/logging.h"
@@ -91,6 +93,7 @@ namespace gui {
   NotificationService::displayInfo (NotifyLevel severity, string const& text)
   {
     INFO (gui, "@GUI: display '%s' as notification message.", cStr(text));
+    ID errorLogID = interact::Wizard::getErrorLogID();
     ////////////////////////TODO actually push the information to the GUI   ///////////////////////////////////TICKET #1102 : build a message display box in the UI
                                                                ////////////////////////////////////////////////TICKET #1047 : as a temporary solution, use the InfoBox panel... 
   }
diff --git a/src/proc/asset/meta/error-log.cpp b/src/proc/asset/meta/error-log.cpp
index 9f6cd9ef3..60639a7f2 100644
--- a/src/proc/asset/meta/error-log.cpp
+++ b/src/proc/asset/meta/error-log.cpp
@@ -43,7 +43,7 @@ using std::dynamic_pointer_cast;
 
 
 namespace proc {
-namespace asset {
+namespace asset{
 namespace meta {
   
   namespace error = lumiera::error;
diff --git a/src/proc/asset/meta/error-log.hpp b/src/proc/asset/meta/error-log.hpp
index 6f600ce95..cd856528e 100644
--- a/src/proc/asset/meta/error-log.hpp
+++ b/src/proc/asset/meta/error-log.hpp
@@ -49,7 +49,7 @@
 
 
 namespace proc {
-namespace asset {
+namespace asset{
 namespace meta {
   
   using std::string;
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f4079ede1..6f308c239 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1493,7 +1493,7 @@
 <icon BUILTIN="help"/>
 <node CREATED="1533911116328" ID="ID_1079600246" MODIFIED="1533911128764" TEXT="sie mu&#xdf; insgesamt reprouzierbar sein"/>
 <node CREATED="1533911129424" ID="ID_659618402" MODIFIED="1533911139946" TEXT="zumindest innerhalb einer Program-Ausf&#xfc;hrung"/>
-<node CREATED="1533911854871" HGAP="11" ID="ID_1953310668" MODIFIED="1533911866860" TEXT="Problem dabei" VSHIFT="11">
+<node CREATED="1533911854871" HGAP="23" ID="ID_1953310668" MODIFIED="1534026766064" TEXT="Problem dabei" VSHIFT="11">
 <node CREATED="1533911897569" ID="ID_1876551933" MODIFIED="1533911919154" TEXT="ID ist somit Teil des Interface"/>
 <node CREATED="1533911919814" ID="ID_558535868" MODIFIED="1533911928937" TEXT="welches Interface?">
 <node CREATED="1533915325903" ID="ID_1053391149" MODIFIED="1533915334817" TEXT="GuiNotification">
@@ -1561,12 +1561,36 @@
 </node>
 </node>
 </node>
-<node CREATED="1533911886268" ID="ID_1414379746" MODIFIED="1533911931262" TEXT="ID storage"/>
+<node CREATED="1533911886268" ID="ID_1414379746" MODIFIED="1533911931262" TEXT="ID storage">
+<node CREATED="1534026768353" ID="ID_38337485" MODIFIED="1534026773780" TEXT="statisch extern"/>
+<node CREATED="1534026775080" ID="ID_875112330" MODIFIED="1534026808983">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      in proc::asset::meta::<b><font color="#c01a1a">theErrorLog_ID</font></b>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1534026821186" ID="ID_1959407299" MODIFIED="1534026961333" TEXT="dieses Interface f&#xfc;hlt sich irgendwie falsch an">
+<linktarget COLOR="#c23581" DESTINATION="ID_1959407299" ENDARROW="Default" ENDINCLINATION="-34;0;" ID="Arrow_ID_1588328372" SOURCE="ID_1198718862" STARTARROW="Default" STARTINCLINATION="10;-26;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1534026923108" ID="ID_1896057034" MODIFIED="1534026932095" TEXT="Wizzard hat jetzt eine statische Methode"/>
+<node CREATED="1534026932891" ID="ID_1643129041" MODIFIED="1534026942685" TEXT="NotificationService mu&#xdf; die ansprechen"/>
+<node CREATED="1534026943481" ID="ID_445720698" MODIFIED="1534026954859" TEXT="blo&#xdf; um eine &quot;hinten herum&quot; vereinbarte ID zu bekommen"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1533916387142" HGAP="-78" ID="ID_1746348489" MODIFIED="1533916411849" TEXT="Festlegung" VSHIFT="-6">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
-<node CREATED="1533916393797" ID="ID_1198718862" MODIFIED="1533916417405" TEXT="Wizzard">
+<node CREATED="1533916393797" ID="ID_1198718862" MODIFIED="1534026961333" TEXT="Wizzard">
+<arrowlink COLOR="#c23581" DESTINATION="ID_1959407299" ENDARROW="Default" ENDINCLINATION="-34;0;" ID="Arrow_ID_1588328372" STARTARROW="Default" STARTINCLINATION="10;-26;"/>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 </node>
 <node CREATED="1533916397565" ID="ID_1117749960" MODIFIED="1533918772587" TEXT="ErrorLog">

From b7c3764ae8dbad83ba427b7b15051f99474cabc3 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 13 Aug 2018 00:44:52 +0200
Subject: [PATCH 010/178] NotificationDisplay: wire NotificationHub-Controller
 with the global ID

---
 src/gui/ctrl/notification-hub.hpp | 5 ++---
 src/gui/interact/wizard.cpp       | 2 ++
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 1e447cc6f..1aa58a043 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -76,13 +76,12 @@ namespace ctrl {
           UNIMPLEMENTED ("create a sensible binding between AssetManager in the session and AssetController in the UI");
         }
     
-    public:
       
     public:
-      NotificationHub (ID identity, ctrl::BusTerm& nexus)////////////////////////////////////TODO #1099 : define the ID hard-wired at an appropriate location, so it can be used from the NotificationService impl as well
+      NotificationHub (ID identity, ctrl::BusTerm& nexus)
         : model::Controller{identity, nexus}
         { }
-        
+      
      ~NotificationHub() { };
       
     private:
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 7996eb744..49921c692 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -56,6 +56,7 @@ namespace interact {
   using boost::algorithm::is_any_of;
   using boost::algorithm::split;
   using workspace::WorkspaceWindow;
+  using ctrl::NotificationHub;
   using ctrl::GlobalCtx;
   using Gtk::AboutDialog;
   
@@ -67,6 +68,7 @@ namespace interact {
   
   Wizard::Wizard (GlobalCtx& globals)
     : globalCtx_{globals}
+    , notificationHub_{new NotificationHub{getErrorLogID(), globals.uiBus_.getAccessPoint()}}
     { }
   
   

From 36abe4567e23231699be4114ded1248eac65fea6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 13 Aug 2018 02:52:31 +0200
Subject: [PATCH 011/178] NotificationDisplay: define the actual controller
 behaviour to be implemented

this is specification work; for now the stubs are marked UNIMPLEMENTED
---
 src/gui/ctrl/notification-hub.hpp    |  78 +++++++++++++++++++
 src/gui/model/controller.hpp         |   7 +-
 tests/gui/abstract-tangible-test.cpp |   4 +-
 tests/gui/test/mock-elm.hpp          |   4 +-
 wiki/thinkPad.ichthyo.mm             | 107 ++++++++++++++++++++++++++-
 5 files changed, 193 insertions(+), 7 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 1aa58a043..8c809f414 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -29,6 +29,33 @@
  ** On first use, an InfoboxPanel is allocated to hold an ErrorlogWidget for presentation
  ** of those messages
  ** 
+ ** # Notification Controller Behaviour
+ ** 
+ ** This controller serves the purpose to present information and error messages to the user.
+ ** For the actual display, it allocates an appropriate view, placed into a docking pane
+ ** reserved for information display, in accordance to the configured screen layout
+ ** @todo 8/2018 for now we just use and possibly create a hard wired display within the
+ **       first (primary) application window. Moreover, we do so directly, instead of
+ **       consulting the (not yet fully implemented) ViewSpec mechanism. (via ViewLocator).
+ ** 
+ ** The actual widget for information display is prepared, but it is actually allocated when
+ ** the need for information display arises. Which means, the user may close this display
+ ** widget, thereby discarding its current information content -- but when the next notification
+ ** needs to be shown, the controller will ensure to allocate an appropriate widget again. Moreover,
+ ** the widget can be _expanded_ or _collapsed_, without affecting its content.
+ ** - information messages are just added to the buffer without much ado. No attempt is made
+ **   to reveal or expand the widget (but if necessary, a new widget is allocated)
+ ** - error messages also set an error marker state (*TODO* reflect this in the presentation),
+ **   and they cause the display widget to be expanded
+ **   (*TODO* 8/18 consider also call the doRevealYourself() function)
+ ** - the error state can be _cleared_, which also demotes all error messages to mere information.
+ ** - information content can also be _cleared_, which removes all mere information messages,
+ **   while retaining the error entries.
+ ** - the doReset() operation completely clears the log contents, collapses the widget and clears state.
+ ** - expanding of the display widget is state marked, irrespective if it happened by user interaction
+ **   or as result of some display. However, the actual message content is _not_ state marked; it needs
+ **   to be persisted elsewhere (in the session) and replayed from there if desired.
+ ** 
  ** @see error-log-widget.hpp
  ** @see notification-service.hpp
  */
@@ -77,6 +104,57 @@ namespace ctrl {
         }
     
       
+      /* ==== Tangible interface ==== */
+      
+      virtual bool
+      doReset()  override
+        {
+          UNIMPLEMENTED ("Clear log contents, collapse widget, clear error state");
+        }
+      
+      virtual bool
+      doExpand (bool yes)  override
+        {
+          UNIMPLEMENTED ("Allocate Widget if necessary, expand widget");
+        }
+      
+      virtual void
+      doRevealYourself()  override
+        {
+          UNIMPLEMENTED ("TODO: how can the Log-Widget be 'revealed'?? Possibly allocate Widget, expand it. But how to make it visible?");
+        }
+      
+      virtual bool
+      doMsg (string text)  override
+        {
+          UNIMPLEMENTED ("Possibly allocate Widget, place text into its buffer. No need to expand");
+        }
+      
+      virtual bool
+      doClearMsg ()  override
+        {
+          UNIMPLEMENTED ("remove all mere information messages");
+        }
+      
+      virtual bool
+      doErr (string text)  override
+        {
+          UNIMPLEMENTED ("Set error state. Allocate Widget if necessary, expand widget, place error message into its buffer");
+        }
+      
+      virtual bool
+      doClearErr ()  override
+        {
+          UNIMPLEMENTED ("clear error state. If widget exists, turn all error entries into mere information entries");
+        }
+      
+      virtual void
+      doFlash()  override
+        {
+          UNIMPLEMENTED ("If widget exists: expand it, trigger its flash function (paint with timeout). TODO also doRevealYourself.");
+        }
+      
+      
     public:
       NotificationHub (ID identity, ctrl::BusTerm& nexus)
         : model::Controller{identity, nexus}
diff --git a/src/gui/model/controller.hpp b/src/gui/model/controller.hpp
index e9accebb8..7d4d5a085 100644
--- a/src/gui/model/controller.hpp
+++ b/src/gui/model/controller.hpp
@@ -118,10 +118,15 @@ namespace model {
           UNIMPLEMENTED ("Controller doFlash");
         }
       
+      /** default handler for all generic mark messages. Forwards to Tangible::doMark
+       * @todo is there any default implementation for special messages,
+       *       which might be eligible as a base class implementation??
+       */
       virtual void
       doMark (GenNode const& mark)  override
         {
-          UNIMPLEMENTED ("Controller doMark");
+          // forward to default handler
+          Tangible::doMark (mark);
         }
       
       
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index fdd077f52..7e1f178dd 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -639,11 +639,11 @@ namespace test {
                          .beforeEvent("create", "a")
                          .beforeEvent("diff","create child \"b\"")              // insert second child
                          .beforeEvent("create", "b")
-                         .beforeEvent("diff","set Attib α <-quadrant")          // assign value to existing attribute α
+                         .beforeEvent("diff","set Attrib α <-quadrant")         // assign value to existing attribute α
                          .beforeCall("buildMutator").on(&childB)                // establish nested mutator for second child
                          .beforeEvent("diff","b accepts mutation...")
                          .beforeEvent("diff",">>Scope>> b")                     // recursively mutate second child
-                         .beforeEvent("diff","++Attib++ π = 3.1415927"));       // insert new attribute π within nested scope
+                         .beforeEvent("diff","++Attrib++ π = 3.1415927"));      // insert new attribute π within nested scope
           
           
           CHECK (nexusLog.verifyCall("routeAdd").arg(rootMock.getID(), memLocation(rootMock))      // rootMock was attached to Nexus
diff --git a/tests/gui/test/mock-elm.hpp b/tests/gui/test/mock-elm.hpp
index 374e70fc6..7489534bb 100644
--- a/tests/gui/test/mock-elm.hpp
+++ b/tests/gui/test/mock-elm.hpp
@@ -281,14 +281,14 @@ namespace test{
                         {
                           string key{spec.idi.getSym()},
                                  val{render(spec.data)};
-                          log_.event("diff", "++Attib++ "+key+" = "+val);
+                          log_.event("diff", "++Attrib++ "+key+" = "+val);
                           return {key, val};
                         })
                      .assignElement ([&](Attrib& target, GenNode const& spec) -> bool
                         {
                           string key{spec.idi.getSym()},
                                  newVal{render (spec.data)};
-                          log_.event("diff", "set Attib "+key+" <-"+newVal);
+                          log_.event("diff", "set Attrib "+key+" <-"+newVal);
                           target.second = newVal;
                           return true;
                         })));
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 6f308c239..64260aa10 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1715,7 +1715,7 @@
 <node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1533689061409" TEXT="InfoboxPanel anlegen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1533689296703" TEXT="NotificationController im Wizzard ansiedeln">
+<node COLOR="#338800" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1534119944991" TEXT="NotificationController im Wizzard ansiedeln">
 <icon BUILTIN="full-1"/>
 <node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1533768810140" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
 <icon BUILTIN="help"/>
@@ -1761,11 +1761,13 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1533689299058" TEXT="mit Bus verdrahten und ID global konstant definieren">
+<node COLOR="#338800" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1534119951865" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1533689301486" TEXT="Empfangs-Logik im NotificationController">
 <icon BUILTIN="full-3"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534119972876" TEXT="Einrichtung">
+<icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1533689143685" TEXT="View belegen">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -1779,6 +1781,107 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1534119985027" TEXT="Controller-Interface">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534120180110" TEXT="doReset()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1534120202934" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1534120180109" TEXT="doExpand(yes)">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1534120202934" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1534120180109" TEXT="doRevealYourself()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1534120253931">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b><font color="#ae1414">TODO</font></b>: how can the Log-Widget be 'revealed'??
+    </p>
+    <p>
+      Possibly allocate Widget, expand it. But how to make it visible?
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534120180108" TEXT="doMsg(text)">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1534120202934" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1534120180107" TEXT="doClearMsg()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150463" ID="ID_1378278687" MODIFIED="1534120202934" TEXT="&quot;remove all mere information messages&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1534120180106" TEXT="doErr(text)">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150463" ID="ID_764543121" MODIFIED="1534120282524">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        Set error state.
+      </li>
+      <li>
+        Allocate Widget if necessary
+      </li>
+      <li>
+        expand widget
+      </li>
+      <li>
+        place error message into its buffer&quot;
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1534120180106" TEXT="doClearErr()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150465" ID="ID_1858186015" MODIFIED="1534120202932" TEXT="&quot;clear error state. If widget exists, turn all error entries into mere information entries&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1534120180105" TEXT="doFlash()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1534120315751">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      &quot;If widget exists: expand it, trigger its flash function (paint with timeout).
+    </p>
+    <p>
+      <b><font color="#951c1c">TODO</font></b>&#160;also doRevealYourself.&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+</node>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1533689307645" TEXT="in NotificationService integrieren">
 <icon BUILTIN="full-4"/>
 </node>

From e829a74edff6d9171f193bf8c83f9f8d05efb72f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 15 Aug 2018 15:32:20 +0200
Subject: [PATCH 012/178] NotificationDisplay: draft idea of managed
 link-to-widget

a smart-reference based on sigc::trackable
---
 src/gui/model/w-link.hpp        |  92 ++++++++++++++++++++++++++
 tests/gui/model/w-link-test.cpp | 106 ++++++++++++++++++++++++++++++
 wiki/thinkPad.ichthyo.mm        | 113 ++++++++++++++++++++++++--------
 3 files changed, 282 insertions(+), 29 deletions(-)
 create mode 100644 src/gui/model/w-link.hpp
 create mode 100644 tests/gui/model/w-link-test.cpp

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
new file mode 100644
index 000000000..8273a3d67
--- /dev/null
+++ b/src/gui/model/w-link.hpp
@@ -0,0 +1,92 @@
+/*
+  W-LINK.hpp  -  smart-link to GTK widget
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file w-link.hpp
+ ** A smart link to an GTK widget with automatic disconnection.
+ ** Allows to hold a connection to a `sigc::trackable` without ownership.
+ ** The is statefull, can be reconnected, and automatically transitions into disconnected
+ ** state when the target dies.
+ ** 
+ ** @see \ref WLink_test
+ ** @see \ref NotificationHub (usage example)
+ ** 
+ */
+
+
+#ifndef GUI_MODEL_W_LINK_H
+#define GUI_MODEL_W_LINK_H
+
+
+#include "lib/error.hpp"
+//#include "lib/symbol.hpp"
+
+#include <type_traits>
+#include <sigc++/trackable.h>
+//#include <utility>
+//#include <string>
+
+
+namespace gui {
+namespace model {
+  
+//  using std::string;
+//  using lib::Symbol;
+  
+  
+  /**
+   * Managed link to a `sigc::trackable` UI widget, without taking ownership.
+   */
+  template<class TAR>
+  class WLink
+    {
+      static_assert (std::is_base_of<sigc::trackable, TAR>()
+                    ,"target type required to be sigc::trackable");
+      
+      TAR* widget_;
+      
+      
+    public:
+     ~WLink()
+        {
+       
+        }
+      WLink()
+        {
+          
+        }
+      explicit
+      WLink(TAR& targetWidget)
+        : widget_{&targetWidget}
+        { }
+      
+    protected:
+    };
+  
+  
+  
+  /** c */
+  
+  
+  
+}} // namespace gui::model
+#endif /*GUI_MODEL_W_LINK_H*/
diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
new file mode 100644
index 000000000..369f06610
--- /dev/null
+++ b/tests/gui/model/w-link-test.cpp
@@ -0,0 +1,106 @@
+/*
+  WLink(Test)  -  verify managed link to sigc::trackable widget
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file w-link-test.cpp
+ ** unit test \ref WLink_test
+ */
+
+
+#include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
+#include "gui/model/w-link.hpp"
+//#include "gen-node-location-query.hpp"
+#include "lib/format-cout.hpp"
+//#include "lib/idi/entry-id.hpp"
+//#include "lib/diff/gen-node.hpp"
+#include "lib/util.hpp"
+
+//#include <string>
+//#include <vector>
+
+
+//using std::string;
+//using lib::diff::MakeRec;
+//using lib::diff::Rec;
+//using lib::idi::EntryID;
+//using lib::diff::GenNode;
+using util::isSameObject;
+using util::isnil;
+
+
+namespace gui  {
+namespace model{
+namespace test {
+  
+//  using lumiera::error::LUMIERA_ERROR_WRONG_TYPE;
+//  using lib::test::showSizeof;
+  
+  
+  
+  
+  /******************************************************************************//**
+   * @test verify the usage pattern of low-level UI element access, based on a
+   *       mock implementation of the accessor directory.
+   * @see w-link.hpp
+   */
+  class WLink_test : public Test
+    {
+      
+      virtual void
+      run (Arg)
+        {
+          verify_standardUsage();
+          verify_reconnect();
+          verify_copy();
+        }
+      
+      
+      /** @test the standard use case is to hold onto a widget
+       *        owned by _someone else_, with automatic disconnection
+       */
+      void
+      verify_standardUsage()
+        {
+          UNIMPLEMENTED ("demonstrate a simple usage scenario");
+        }
+      
+      
+      void
+      verify_reconnect()
+        {
+          UNIMPLEMENTED ("change connection state");
+        }
+      
+      
+      void
+      verify_copy()
+        {
+          UNIMPLEMENTED ("copy with magic");
+        }
+    };
+  
+  
+  /** Register this test class... */
+  LAUNCHER (WLink_test, "unit gui");
+  
+  
+}}} // namespace gui::model::test
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 64260aa10..2e9348cca 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -22,7 +22,7 @@
 <node CREATED="1487212066024" ID="ID_378199749" MODIFIED="1518487921038" TEXT="Spot Locator == das was navigiert wird, wenn sich der Spot bewegt"/>
 </node>
 </node>
-<node CREATED="1477784761581" HGAP="72" ID="ID_854334914" MODIFIED="1518487921039" TEXT="Rahmen" VSHIFT="-21">
+<node CREATED="1477784761581" HGAP="72" ID="ID_854334914" MODIFIED="1518487921039" TEXT="Rahmen" VGAP="19" VSHIFT="-21">
 <node CREATED="1481320580216" ID="ID_1418071897" MODIFIED="1518487921039" TEXT="vorantreiben">
 <node CREATED="1501776053522" ID="ID_664046169" MODIFIED="1518487921039" TEXT="R&#xfc;ckpfad Session -&gt; UI">
 <node CREATED="1501776081782" ID="ID_1369579979" MODIFIED="1518487921039" TEXT="warum wichtig?">
@@ -1573,8 +1573,7 @@
       in proc::asset::meta::<b><font color="#c01a1a">theErrorLog_ID</font></b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1534026821186" ID="ID_1959407299" MODIFIED="1534026961333" TEXT="dieses Interface f&#xfc;hlt sich irgendwie falsch an">
@@ -1768,6 +1767,10 @@
 <icon BUILTIN="full-3"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534119972876" TEXT="Einrichtung">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534336575048" TEXT="Link zum Widget herstellen">
+<arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1533689143685" TEXT="View belegen">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -1810,8 +1813,7 @@
       Possibly allocate Widget, expand it. But how to make it visible?
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534120180108" TEXT="doMsg(text)">
@@ -1849,8 +1851,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 </node>
@@ -1875,12 +1876,14 @@
       <b><font color="#951c1c">TODO</font></b>&#160;also doRevealYourself.&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534334039368" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1533689307645" TEXT="in NotificationService integrieren">
 <icon BUILTIN="full-4"/>
@@ -3156,8 +3159,68 @@
 </node>
 <node CREATED="1477784829157" ID="ID_1998357180" MODIFIED="1518487921059" TEXT="Icon-Laden modernisieren"/>
 <node CREATED="1477784821925" ID="ID_1871474250" MODIFIED="1518487921059" TEXT="Styling aufr&#xe4;umen">
-<node CREATED="1477784846162" ID="ID_1164942946" MODIFIED="1518487921059" TEXT="siehe Info zum CssProvider">
-<arrowlink COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" STARTARROW="None" STARTINCLINATION="-227;-646;"/>
+<node CREATED="1477784846162" ID="ID_1164942946" MODIFIED="1534336601077" TEXT="siehe Info zum CssProvider">
+<arrowlink COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" STARTARROW="None" STARTINCLINATION="-756;164;"/>
+</node>
+</node>
+</node>
+<node CREATED="1534336252375" HGAP="27" ID="ID_1755017021" MODIFIED="1534336284856" TEXT="Hilfsmittel">
+<node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine"/>
+<node CREATED="1534336325916" ID="ID_762624766" MODIFIED="1534336335351" TEXT="Bindeglieder"/>
+<node CREATED="1534336335963" ID="ID_1176525116" MODIFIED="1534336338575" TEXT="Werkzeug">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334810537" ID="ID_1326202399" MODIFIED="1534336575049" TEXT="Link zum Widget">
+<linktarget COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" SOURCE="ID_203145360" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534334828778" TEXT="Allozieren">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534334868795" TEXT="als Funktor konfiguriert">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334914667" ID="ID_511749457" MODIFIED="1534334932930" TEXT="smart-Ref">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334939159" ID="ID_1853703071" MODIFIED="1534335238329" TEXT="leer konstruierbar">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334944207" ID="ID_1989000221" MODIFIED="1534335237689" TEXT="bool testbar">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334964700" ID="ID_1509791330" MODIFIED="1534335236977" TEXT="dereferenzierbar">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534335220066" ID="ID_132223755" MODIFIED="1534335235369" TEXT="target anbinden">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534335240246" ID="ID_1480460700" MODIFIED="1534336108969" TEXT="sigc::trackable">
+<icon BUILTIN="info"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336110858" ID="ID_280796006" MODIFIED="1534336115810" TEXT="connect()">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336116617" ID="ID_1274372728" MODIFIED="1534336119507" TEXT="clear()">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534335253941" ID="ID_269300171" MODIFIED="1534335534298" TEXT="magisch kopierbar">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1534336069415" ID="ID_1775411301" MODIFIED="1534337958030">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Name: <b>WLink</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534337985657" TEXT="WLink_test" VSHIFT="9">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 </node>
@@ -32241,8 +32304,7 @@
       Ganz prominent fehlt hier also z.B: MIDI
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1534002180893" ID="ID_1074039128" MODIFIED="1534002196087" TEXT="daf&#xfc;r erscheint die Unterscheidung STRUCT vs. META schwammig"/>
 </node>
@@ -32262,8 +32324,7 @@
       die Aufgrund von Klassifikationen automatisch bereits existieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1534024950739" ID="ID_1395279965" MODIFIED="1534024969582" TEXT="Races und m&#xf6;gliche Kollisionen &#xfc;berall">
 <icon BUILTIN="clanbomber"/>
@@ -32313,8 +32374,7 @@
       <i>das</i>&#160;ErrorLog
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1533997846989" ID="ID_1324960272" MODIFIED="1533997854911" TEXT="zun&#xe4;chst nur Platzhalter">
 <node CREATED="1533997938232" ID="ID_40537012" MODIFIED="1533997995641" TEXT="brauche EntryID&lt;ErrorLog&gt;">
 <richcontent TYPE="NOTE"><html>
@@ -32332,8 +32392,7 @@
       &#252;ber den UI-Bus schickt, an einen Empf&#228;nger mit bekannter ID.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
@@ -32349,8 +32408,7 @@
       dort gibt es eine <b>ErrorLogView</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1534025106095">
 <richcontent TYPE="NODE"><html>
@@ -32362,8 +32420,7 @@
       und den Controller: <b>NotificationHub</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#a9aac1" DESTINATION="ID_70134302" ENDARROW="Default" ENDINCLINATION="-1984;0;" ID="Arrow_ID_1885125683" STARTARROW="None" STARTINCLINATION="803;-67;"/>
 </node>
 </node>
@@ -32391,8 +32448,7 @@
       dadurch werden Meta-Operationen auf gleiche Ebene gestellt wie normale Struktur-Manipulationen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1533997603741" ID="ID_1980534712" MODIFIED="1533997832361" TEXT="die Command und Event-Logs k&#xf6;nnten repr&#xe4;sentiert sein">
@@ -32422,8 +32478,7 @@
       und verlieren ihren <i>magischen Charakter</i>&#160;au&#223;erhalb der Event-Sourcing-Struktur
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -34112,7 +34167,7 @@
 <node CREATED="1504215729848" ID="ID_518260540" MODIFIED="1518487921101" TEXT="howto">
 <node CREATED="1446515847047" ID="ID_290915762" MODIFIED="1518487921101" TEXT="GtkCssProvider">
 <node CREATED="1446515865029" ID="ID_1503616150" MODIFIED="1518487921101" TEXT="parsing errors"/>
-<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1518487921101" TEXT="Beispiel im GTKmm-Guide (custom widget)">
+<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1534336601077" TEXT="Beispiel im GTKmm-Guide (custom widget)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -34129,7 +34184,7 @@
     </p>
   </body>
 </html></richcontent>
-<linktarget COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" SOURCE="ID_1164942946" STARTARROW="None" STARTINCLINATION="-227;-646;"/>
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" SOURCE="ID_1164942946" STARTARROW="None" STARTINCLINATION="-756;164;"/>
 <icon BUILTIN="info"/>
 </node>
 </node>

From c47e3d0210a71c0a0ffdea4f66d23a659060e474 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 15 Aug 2018 16:24:03 +0200
Subject: [PATCH 013/178] WLink: draft basic behaviour

---
 src/gui/model/w-link.hpp        | 32 ++++++++++++++++++++++++++-
 tests/gui/model/w-link-test.cpp | 35 +++++++++++++++++++++++++-----
 wiki/thinkPad.ichthyo.mm        | 38 ++++++++++++++++++++++-----------
 3 files changed, 86 insertions(+), 19 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index 8273a3d67..be203c318 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -51,6 +51,7 @@ namespace model {
   
 //  using std::string;
 //  using lib::Symbol;
+  using lumiera::error::LUMIERA_ERROR_BOTTOM_VALUE;
   
   
   /**
@@ -62,6 +63,7 @@ namespace model {
       static_assert (std::is_base_of<sigc::trackable, TAR>()
                     ,"target type required to be sigc::trackable");
       
+      //mutable
       TAR* widget_;
       
       
@@ -79,7 +81,35 @@ namespace model {
         : widget_{&targetWidget}
         { }
       
-    protected:
+      explicit
+      operator bool()  const
+        {
+          return bool(widget_);
+        }
+      
+      
+      TAR&
+      operator* ()  const
+        {
+          __ensureAlive();
+          return *widget_;
+        }
+      
+      TAR*
+      operator-> ()  const
+        {
+          __ensureAlive();
+          return widget_;
+        }
+      
+    private:
+      void
+      __ensureAlive()  const
+        {
+          if (not widget_)
+            throw lumiera::error::State ("zombie widget encountered"
+                                        , LERR_(BOTTOM_VALUE));
+        }
     };
   
   
diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
index 369f06610..eb11e1d79 100644
--- a/tests/gui/model/w-link-test.cpp
+++ b/tests/gui/model/w-link-test.cpp
@@ -32,10 +32,10 @@
 #include "lib/format-cout.hpp"
 //#include "lib/idi/entry-id.hpp"
 //#include "lib/diff/gen-node.hpp"
-#include "lib/util.hpp"
+//#include "lib/util.hpp"
 
 //#include <string>
-//#include <vector>
+#include <memory>
 
 
 //using std::string;
@@ -43,8 +43,9 @@
 //using lib::diff::Rec;
 //using lib::idi::EntryID;
 //using lib::diff::GenNode;
-using util::isSameObject;
-using util::isnil;
+using std::make_unique;
+//using util::isSameObject;
+//using util::isnil;
 
 
 namespace gui  {
@@ -54,6 +55,16 @@ namespace test {
 //  using lumiera::error::LUMIERA_ERROR_WRONG_TYPE;
 //  using lib::test::showSizeof;
   
+  namespace { // Test fixture...
+    
+    template<typename X>
+    struct DummyWidget
+      : public sigc::trackable
+      {
+        X val;
+      };
+  }
+  
   
   
   
@@ -80,7 +91,21 @@ namespace test {
       void
       verify_standardUsage()
         {
-          UNIMPLEMENTED ("demonstrate a simple usage scenario");
+          using Wint = DummyWidget<int>;
+          int r{rand() % 100};
+          
+          auto widget = make_unique<Wint>();
+          widget->val = r;
+          
+          WLink<Wint> link{*widget};
+          CHECK (link);
+          link->val += 23;
+          CHECK (r+23 == widget->val);
+          
+          // kill widget
+          widget.reset();
+          CHECK (not link);
+          VERIFY_ERROR (BOTTOM_VALUE, link->val );
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 2e9348cca..621b75948 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1770,6 +1770,12 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534336575048" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534339973276" TEXT="als Funktor konfiguriert">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534339983350" TEXT="Allozieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1533689143685" TEXT="View belegen">
 <icon BUILTIN="flag-yellow"/>
@@ -3168,25 +3174,19 @@
 <node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine"/>
 <node CREATED="1534336325916" ID="ID_762624766" MODIFIED="1534336335351" TEXT="Bindeglieder"/>
 <node CREATED="1534336335963" ID="ID_1176525116" MODIFIED="1534336338575" TEXT="Werkzeug">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334810537" ID="ID_1326202399" MODIFIED="1534336575049" TEXT="Link zum Widget">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334810537" ID="ID_1326202399" MODIFIED="1534340000558" TEXT="Link zum Widget">
 <linktarget COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" SOURCE="ID_203145360" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534334828778" TEXT="Allozieren">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534334868795" TEXT="als Funktor konfiguriert">
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
+<icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334914667" ID="ID_511749457" MODIFIED="1534334932930" TEXT="smart-Ref">
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334939159" ID="ID_1853703071" MODIFIED="1534335238329" TEXT="leer konstruierbar">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334944207" ID="ID_1989000221" MODIFIED="1534335237689" TEXT="bool testbar">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534334944207" ID="ID_1989000221" MODIFIED="1534342998767" TEXT="bool testbar">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334964700" ID="ID_1509791330" MODIFIED="1534335236977" TEXT="dereferenzierbar">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534334964700" ID="ID_1509791330" MODIFIED="1534343003956" TEXT="dereferenzierbar">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534335220066" ID="ID_132223755" MODIFIED="1534335235369" TEXT="target anbinden">
 <icon BUILTIN="flag-yellow"/>
@@ -3218,9 +3218,21 @@
 </richcontent>
 <icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534337985657" TEXT="WLink_test" VSHIFT="9">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534340006778" TEXT="WLink_test" VSHIFT="9">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534340031277" ID="ID_506504727" MODIFIED="1534341378412" TEXT="test-dummy-trackable">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340016027" ID="ID_109515645" MODIFIED="1534342990871" TEXT="verify_standardUsage">
+<icon BUILTIN="pencil"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340023288" ID="ID_1266509201" MODIFIED="1534340043884" TEXT="verify_reconnect">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340028094" ID="ID_1406183687" MODIFIED="1534340044144" TEXT="verify_copy">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From 0c29bd7c9214224b0ce669ffab2c2a72187bafb1 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 15 Aug 2018 17:02:39 +0200
Subject: [PATCH 014/178] WLink: implement the basic tracking functionality

---
 src/gui/model/w-link.hpp | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index be203c318..9e62c98be 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -27,6 +27,9 @@
  ** The is statefull, can be reconnected, and automatically transitions into disconnected
  ** state when the target dies.
  ** 
+ ** @warning this class is not threadsafe, because lib SigC++ is not either,
+ **          and it can only be used reliably from within the GUI thread.
+ ** 
  ** @see \ref WLink_test
  ** @see \ref NotificationHub (usage example)
  ** 
@@ -56,6 +59,7 @@ namespace model {
   
   /**
    * Managed link to a `sigc::trackable` UI widget, without taking ownership.
+   * @warning _not_ threadsafe
    */
   template<class TAR>
   class WLink
@@ -70,16 +74,21 @@ namespace model {
     public:
      ~WLink()
         {
-       
+          if (widget_)
+            disconnect (*widget_);
         }
       WLink()
-        {
-          
-        }
+        : widget_{nullptr}
+        { }
+      
       explicit
       WLink(TAR& targetWidget)
         : widget_{&targetWidget}
-        { }
+        {
+          connect (targetWidget);
+        }
+      
+      ////////////////////////////TODO copy operations
       
       explicit
       operator bool()  const
@@ -110,6 +119,25 @@ namespace model {
             throw lumiera::error::State ("zombie widget encountered"
                                         , LERR_(BOTTOM_VALUE));
         }
+      
+      void
+      connect (sigc::trackable& target)
+        {
+          target.add_destroy_notify_callback (&widget_
+                                             ,[](void* p)
+                                                {
+                                                  TAR* & widgetPtr = *static_cast<TAR**>(p);
+                                                  ASSERT (widgetPtr);
+                                                  widgetPtr = nullptr;
+                                                  return p;
+                                                });
+        }
+      
+      void
+      disconnect (sigc::trackable& target)
+        {
+          target.remove_destroy_notify_callback (&widget_);
+        }
     };
   
   

From a15951b036c1ec6cc0bcd1ead2e7e57b54a09430 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 16 Aug 2018 02:10:31 +0200
Subject: [PATCH 015/178] WLink: implement connecting / reconnecting

---
 src/gui/model/w-link.hpp        | 38 +++++++++++++----------
 tests/gui/model/w-link-test.cpp | 53 ++++++++++++++++++++++++++++-----
 2 files changed, 69 insertions(+), 22 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index 9e62c98be..fce69b5f7 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -74,8 +74,7 @@ namespace model {
     public:
      ~WLink()
         {
-          if (widget_)
-            disconnect (*widget_);
+          this->clear();
         }
       WLink()
         : widget_{nullptr}
@@ -83,10 +82,8 @@ namespace model {
       
       explicit
       WLink(TAR& targetWidget)
-        : widget_{&targetWidget}
-        {
-          connect (targetWidget);
-        }
+        : widget_{attachTo (targetWidget)}
+        { }
       
       ////////////////////////////TODO copy operations
       
@@ -96,7 +93,6 @@ namespace model {
           return bool(widget_);
         }
       
-      
       TAR&
       operator* ()  const
         {
@@ -111,6 +107,23 @@ namespace model {
           return widget_;
         }
       
+      
+      void
+      clear()
+        {
+          if (widget_)
+            widget_->remove_destroy_notify_callback (&widget_);
+          widget_ = nullptr;
+        }
+      
+      void
+      connect (TAR& otherTarget)
+        {
+          if (widget_ == &otherTarget) return;
+          clear();
+          widget_ = attachTo (otherTarget);
+        }
+      
     private:
       void
       __ensureAlive()  const
@@ -120,8 +133,8 @@ namespace model {
                                         , LERR_(BOTTOM_VALUE));
         }
       
-      void
-      connect (sigc::trackable& target)
+      TAR*
+      attachTo (TAR& target)
         {
           target.add_destroy_notify_callback (&widget_
                                              ,[](void* p)
@@ -131,12 +144,7 @@ namespace model {
                                                   widgetPtr = nullptr;
                                                   return p;
                                                 });
-        }
-      
-      void
-      disconnect (sigc::trackable& target)
-        {
-          target.remove_destroy_notify_callback (&widget_);
+          return &target;
         }
     };
   
diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
index eb11e1d79..2c9177904 100644
--- a/tests/gui/model/w-link-test.cpp
+++ b/tests/gui/model/w-link-test.cpp
@@ -32,7 +32,7 @@
 #include "lib/format-cout.hpp"
 //#include "lib/idi/entry-id.hpp"
 //#include "lib/diff/gen-node.hpp"
-//#include "lib/util.hpp"
+#include "lib/util.hpp"
 
 //#include <string>
 #include <memory>
@@ -44,7 +44,7 @@
 //using lib::idi::EntryID;
 //using lib::diff::GenNode;
 using std::make_unique;
-//using util::isSameObject;
+using util::isSameObject;
 //using util::isnil;
 
 
@@ -61,7 +61,7 @@ namespace test {
     struct DummyWidget
       : public sigc::trackable
       {
-        X val;
+        X val = 1 + rand() % 100;
       };
   }
   
@@ -92,10 +92,8 @@ namespace test {
       verify_standardUsage()
         {
           using Wint = DummyWidget<int>;
-          int r{rand() % 100};
-          
           auto widget = make_unique<Wint>();
-          widget->val = r;
+          int r = widget->val;
           
           WLink<Wint> link{*widget};
           CHECK (link);
@@ -112,7 +110,48 @@ namespace test {
       void
       verify_reconnect()
         {
-          UNIMPLEMENTED ("change connection state");
+          using Wint = DummyWidget<int>;
+          
+          auto w1 = make_unique<Wint>();
+          auto w2 = make_unique<Wint>();
+          int r1 = w1->val;
+          int r2 = w2->val;
+          
+          WLink<Wint> l1;
+          WLink<Wint> l2{*w1};
+          CHECK (not l1);
+          CHECK (    l2);
+          
+          l2->val = r1;
+          l1.connect(*l2);
+          ++l1->val;
+          CHECK (w1->val == r1+1);
+          CHECK (isSameObject (*l1, *l2));
+          
+          l2.connect(*w2);
+          CHECK (not isSameObject (*l1, *l2));
+          w2->val = r2;
+          CHECK (r1+1 == l1->val);
+          CHECK (r2   == l2->val);
+          
+          w1.reset();  // kill first widget
+          CHECK (not l1);
+          CHECK (    l2);
+          l2->val *= -10;
+          l2.clear();
+          CHECK (not l1);
+          CHECK (not l2);
+          CHECK (-10*r2 == w2->val);
+          l1.connect(*w2);
+          l2.connect(*l1);
+          CHECK (-10*r2 == l2->val);
+          CHECK (isSameObject (*l1, *l2));
+          CHECK (isSameObject (*l1, *w2));
+          
+          // implicitly kill second widget
+          *w2 = Wint{};
+          CHECK (not l1);
+          CHECK (not l2);
         }
       
       

From 22cdfbff2c8771597a0537c9dbf51c8c64f11b54 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 16 Aug 2018 02:34:47 +0200
Subject: [PATCH 016/178] WLink: fill in some documentation

---
 src/gui/model/w-link.hpp | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index fce69b5f7..5fa4d419d 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -23,12 +23,23 @@
 
 /** @file w-link.hpp
  ** A smart link to an GTK widget with automatic disconnection.
- ** Allows to hold a connection to a `sigc::trackable` without ownership.
- ** The is statefull, can be reconnected, and automatically transitions into disconnected
- ** state when the target dies.
+ ** Allows to hold a connection to a [trackable] without taking ownership.
+ ** The link is statefull, can be reconnected, and automatically transitions
+ ** into disconnected state when the target dies.
  ** 
  ** @warning this class is not threadsafe, because lib SigC++ is not either,
  **          and it can only be used reliably from within the GUI thread.
+ ** @remarks the lib SigC++ is used in GTKmm for handling "Signals" and invoking
+ **          "Slots" (i.e. functors) as result of such a signal. Such is dangerous
+ **          within the context of an interactive UI, since widgets might go away
+ **          and be destroyed due to user interaction. To deal with this problem,
+ **          GTKmm derives all widgets from [trackable], which offers an auto
+ **          deregistration callback, when the object is destroyed, so any
+ **          remaining signal connections can be dropped to avoid calling
+ **          a dead functor. We make use of the same mechanism here to
+ **          install a callback to invalidate this smart-handle.
+ ** 
+ ** [trackable]: https://developer.gnome.org/libsigc++/stable/structsigc_1_1trackable.html#details "`sigc::trackable`"
  ** 
  ** @see \ref WLink_test
  ** @see \ref NotificationHub (usage example)
@@ -59,6 +70,8 @@ namespace model {
   
   /**
    * Managed link to a `sigc::trackable` UI widget, without taking ownership.
+   * Automatically installs a callback to switch this link into detached state
+   * when the target (widget) is destroyed.
    * @warning _not_ threadsafe
    */
   template<class TAR>
@@ -67,7 +80,6 @@ namespace model {
       static_assert (std::is_base_of<sigc::trackable, TAR>()
                     ,"target type required to be sigc::trackable");
       
-      //mutable
       TAR* widget_;
       
       
@@ -108,6 +120,7 @@ namespace model {
         }
       
       
+      /** detach and deactivate this link */
       void
       clear()
         {
@@ -116,6 +129,8 @@ namespace model {
           widget_ = nullptr;
         }
       
+      /** (re)connect this smart link to the given target.
+       *  Any previously existing link is detached beforehand */
       void
       connect (TAR& otherTarget)
         {
@@ -133,6 +148,9 @@ namespace model {
                                         , LERR_(BOTTOM_VALUE));
         }
       
+      /** @internal installs the necessary callback
+       *   to detach this link in case the target is destroyed
+       */
       TAR*
       attachTo (TAR& target)
         {
@@ -149,10 +167,5 @@ namespace model {
     };
   
   
-  
-  /** c */
-  
-  
-  
 }} // namespace gui::model
 #endif /*GUI_MODEL_W_LINK_H*/

From baa3d2bff0baeb1f2f66b6e7dfe7cce66fce577b Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 16 Aug 2018 03:31:22 +0200
Subject: [PATCH 017/178] WLink: define expected copy behaviour

---
 tests/gui/model/w-link-test.cpp | 57 +++++++++++++++++++++++++++++++--
 1 file changed, 54 insertions(+), 3 deletions(-)

diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
index 2c9177904..fa157337c 100644
--- a/tests/gui/model/w-link-test.cpp
+++ b/tests/gui/model/w-link-test.cpp
@@ -34,7 +34,7 @@
 //#include "lib/diff/gen-node.hpp"
 #include "lib/util.hpp"
 
-//#include <string>
+#include <utility>
 #include <memory>
 
 
@@ -43,8 +43,9 @@
 //using lib::diff::Rec;
 //using lib::idi::EntryID;
 //using lib::diff::GenNode;
-using std::make_unique;
 using util::isSameObject;
+using std::make_unique;
+using std::move;
 //using util::isnil;
 
 
@@ -158,7 +159,57 @@ namespace test {
       void
       verify_copy()
         {
-          UNIMPLEMENTED ("copy with magic");
+          using Wint = DummyWidget<int>;
+          auto w1 = make_unique<Wint>();
+          auto w2 = make_unique<Wint>();
+          
+          WLink<Wint> l1;
+          WLink<Wint> l2{l1};
+          CHECK (not l2);
+          l2.connect(*w1);
+          
+          WLink<Wint> l3{l2};
+          CHECK (l3);
+          CHECK (w1->val == l3->val);
+          
+          CHECK (not l1); // they are statefull and independent
+          l1 = move(l2);
+          CHECK (not l2);
+          CHECK (l1);
+          CHECK (isSameObject (*l1, *l3));
+          
+          l2 = WLink<Wint>{WLink<Wint>{*w2}};
+          CHECK (w2->val == l2->val);
+          
+          l1 = l3;
+          CHECK (w1->val == l1->val);
+          WLink<Wint>& ref{l1};
+          l1 = move(ref);
+          CHECK (w1->val == l1->val);
+          CHECK (w1->val == l3->val);
+          
+          std::swap (l2, l3);
+          CHECK (w1->val == l1->val);
+          CHECK (w1->val == l2->val);
+          CHECK (w2->val == l3->val);
+          
+          w1.reset();
+          CHECK (not l1);
+          CHECK (not l2);
+          CHECK (w2->val == l3->val);
+          
+          using Wuint = DummyWidget<uint>;
+          auto uu = make_unique<Wuint>();
+          WLink<Wuint> lu{*uu};
+          
+///////////////does not compile...          
+//        l1 = uu;
+//        l1.connect(*uu);
+          
+          // but it is a compile time check...
+          l1 = reinterpret_cast<WLink<Wint>&&> (uu);
+          CHECK ((int)uu->val == l1->val);
+          CHECK (not lu);
         }
     };
   

From ae26012bf56618f2f9f48314e03d9b30805775d4 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 16 Aug 2018 04:57:55 +0200
Subject: [PATCH 018/178] WLink: implement copy operations

swap-based implementation
not sure if attachTo() should be noexcept
---
 src/gui/model/w-link.hpp        | 72 ++++++++++++++++++++++++---------
 tests/gui/model/w-link-test.cpp | 20 ++-------
 wiki/thinkPad.ichthyo.mm        | 28 ++++++-------
 3 files changed, 70 insertions(+), 50 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index 5fa4d419d..552f2e9c9 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -52,19 +52,14 @@
 
 
 #include "lib/error.hpp"
-//#include "lib/symbol.hpp"
 
 #include <type_traits>
 #include <sigc++/trackable.h>
-//#include <utility>
-//#include <string>
 
 
 namespace gui {
 namespace model {
   
-//  using std::string;
-//  using lib::Symbol;
   using lumiera::error::LUMIERA_ERROR_BOTTOM_VALUE;
   
   
@@ -93,11 +88,39 @@ namespace model {
         { }
       
       explicit
-      WLink(TAR& targetWidget)
+      WLink (TAR& targetWidget)
         : widget_{attachTo (targetWidget)}
         { }
       
-      ////////////////////////////TODO copy operations
+      WLink (WLink const& r)
+        : widget_{r.widget_? attachTo(*r.widget_) : nullptr}
+        { }
+      
+      WLink (WLink && rr)
+        : widget_{rr.widget_? attachTo(*rr.widget_) : nullptr}
+        {
+          rr.clear();
+        }
+      
+      WLink&
+      operator= (WLink other)
+        {
+          swap (*this, other);
+          return *this;
+        }
+      
+      friend void
+      swap (WLink& l, WLink& r)
+        {
+          TAR* tl = l.widget_;
+          TAR* tr = r.widget_;
+          if (tl == tr) return;
+          l.clear();
+          r.clear();
+          if (tr) l.widget_ = l.attachTo (*tr);
+          if (tl) r.widget_ = r.attachTo (*tl);
+        }
+      
       
       explicit
       operator bool()  const
@@ -122,17 +145,20 @@ namespace model {
       
       /** detach and deactivate this link */
       void
-      clear()
+      clear()  noexcept
         {
           if (widget_)
-            widget_->remove_destroy_notify_callback (&widget_);
+            try {
+              widget_->remove_destroy_notify_callback (&widget_);
+            }
+            catch(...) { }
           widget_ = nullptr;
         }
       
       /** (re)connect this smart link to the given target.
        *  Any previously existing link is detached beforehand */
       void
-      connect (TAR& otherTarget)
+      connect (TAR& otherTarget)  noexcept
         {
           if (widget_ == &otherTarget) return;
           clear();
@@ -152,17 +178,23 @@ namespace model {
        *   to detach this link in case the target is destroyed
        */
       TAR*
-      attachTo (TAR& target)
+      attachTo (TAR& target)  noexcept
         {
-          target.add_destroy_notify_callback (&widget_
-                                             ,[](void* p)
-                                                {
-                                                  TAR* & widgetPtr = *static_cast<TAR**>(p);
-                                                  ASSERT (widgetPtr);
-                                                  widgetPtr = nullptr;
-                                                  return p;
-                                                });
-          return &target;
+          try {
+              target.add_destroy_notify_callback (&widget_
+                                                 ,[](void* p)
+                                                    {
+                                                      TAR* & widgetPtr = *static_cast<TAR**>(p);
+                                                      ASSERT (widgetPtr);
+                                                      widgetPtr = nullptr;
+                                                      return p;
+                                                    });
+              return &target;
+            }
+          catch(...)
+            {
+              return nullptr;
+            }
         }
     };
   
diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
index fa157337c..6ae177ed0 100644
--- a/tests/gui/model/w-link-test.cpp
+++ b/tests/gui/model/w-link-test.cpp
@@ -28,33 +28,21 @@
 #include "lib/test/run.hpp"
 #include "lib/test/test-helper.hpp"
 #include "gui/model/w-link.hpp"
-//#include "gen-node-location-query.hpp"
-#include "lib/format-cout.hpp"
-//#include "lib/idi/entry-id.hpp"
-//#include "lib/diff/gen-node.hpp"
 #include "lib/util.hpp"
 
 #include <utility>
 #include <memory>
 
 
-//using std::string;
-//using lib::diff::MakeRec;
-//using lib::diff::Rec;
-//using lib::idi::EntryID;
-//using lib::diff::GenNode;
 using util::isSameObject;
 using std::make_unique;
 using std::move;
-//using util::isnil;
 
 
 namespace gui  {
 namespace model{
 namespace test {
   
-//  using lumiera::error::LUMIERA_ERROR_WRONG_TYPE;
-//  using lib::test::showSizeof;
   
   namespace { // Test fixture...
     
@@ -70,8 +58,7 @@ namespace test {
   
   
   /******************************************************************************//**
-   * @test verify the usage pattern of low-level UI element access, based on a
-   *       mock implementation of the accessor directory.
+   * @test verify proper behaviour of a smart-link to a `sigc::trackable` GTK widget.
    * @see w-link.hpp
    */
   class WLink_test : public Test
@@ -108,6 +95,7 @@ namespace test {
         }
       
       
+      /** @test registration is automatically maintained when re-assigning targets */
       void
       verify_reconnect()
         {
@@ -202,12 +190,12 @@ namespace test {
           auto uu = make_unique<Wuint>();
           WLink<Wuint> lu{*uu};
           
-///////////////does not compile...          
+///////////////does not compile...
 //        l1 = uu;
 //        l1.connect(*uu);
           
           // but it is a compile time check...
-          l1 = reinterpret_cast<WLink<Wint>&&> (uu);
+          l1 = reinterpret_cast<WLink<Wint>&&> (lu);
           CHECK ((int)uu->val == l1->val);
           CHECK (not lu);
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 621b75948..cc4018dac 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -3188,20 +3188,20 @@
 <node COLOR="#338800" CREATED="1534334964700" ID="ID_1509791330" MODIFIED="1534343003956" TEXT="dereferenzierbar">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534335220066" ID="ID_132223755" MODIFIED="1534335235369" TEXT="target anbinden">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534335220066" ID="ID_132223755" MODIFIED="1534388600416" TEXT="target anbinden">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534335240246" ID="ID_1480460700" MODIFIED="1534336108969" TEXT="sigc::trackable">
 <icon BUILTIN="info"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336110858" ID="ID_280796006" MODIFIED="1534336115810" TEXT="connect()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534336110858" ID="ID_280796006" MODIFIED="1534388602201" TEXT="connect()">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336116617" ID="ID_1274372728" MODIFIED="1534336119507" TEXT="clear()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534336116617" ID="ID_1274372728" MODIFIED="1534388603779" TEXT="clear()">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534335253941" ID="ID_269300171" MODIFIED="1534335534298" TEXT="magisch kopierbar">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534335253941" ID="ID_269300171" MODIFIED="1534388596484" TEXT="magisch kopierbar">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node CREATED="1534336069415" ID="ID_1775411301" MODIFIED="1534337958030">
@@ -3223,14 +3223,14 @@
 <node COLOR="#338800" CREATED="1534340031277" ID="ID_506504727" MODIFIED="1534341378412" TEXT="test-dummy-trackable">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340016027" ID="ID_109515645" MODIFIED="1534342990871" TEXT="verify_standardUsage">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534340016027" ID="ID_109515645" MODIFIED="1534388606258" TEXT="verify_standardUsage">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340023288" ID="ID_1266509201" MODIFIED="1534340043884" TEXT="verify_reconnect">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534340023288" ID="ID_1266509201" MODIFIED="1534388607832" TEXT="verify_reconnect">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534340028094" ID="ID_1406183687" MODIFIED="1534340044144" TEXT="verify_copy">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534340028094" ID="ID_1406183687" MODIFIED="1534388609833" TEXT="verify_copy">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From a74dc596ce258cefc1f9c38543b210f866b4c392 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 16 Aug 2018 18:22:32 +0200
Subject: [PATCH 019/178] WLink: finished incl. exception handling guarantees
 and documentation

---
 src/gui/model/w-link.hpp        | 71 ++++++++++++++++++++++++---------
 tests/51-gui-model.tests        | 10 +++++
 tests/gui/model/w-link-test.cpp | 14 ++++++-
 wiki/thinkPad.ichthyo.mm        | 25 ++++++++----
 4 files changed, 91 insertions(+), 29 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index 552f2e9c9..923f0657f 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -25,7 +25,14 @@
  ** A smart link to an GTK widget with automatic disconnection.
  ** Allows to hold a connection to a [trackable] without taking ownership.
  ** The link is statefull, can be reconnected, and automatically transitions
- ** into disconnected state when the target dies.
+ ** into disconnected state when the target dies. The link state can be tested
+ ** by `bool` conversion. WLink objects are fully copyable, and each copy has
+ ** its own attachment state and can be reconnected independently.
+ ** 
+ ** The purpose of WLink is to support collaborations between controllers and
+ ** widgets or between widgets. Whenever some logic works with or relies on
+ ** some other UI entity -- which it might even _"allocate"_ -- without taking
+ ** ownership, the relation can be implemented with a WLink.
  ** 
  ** @warning this class is not threadsafe, because lib SigC++ is not either,
  **          and it can only be used reliably from within the GUI thread.
@@ -52,6 +59,7 @@
 
 
 #include "lib/error.hpp"
+#include "lib/format-string.hpp"
 
 #include <type_traits>
 #include <sigc++/trackable.h>
@@ -60,7 +68,10 @@
 namespace gui {
 namespace model {
   
-  using lumiera::error::LUMIERA_ERROR_BOTTOM_VALUE;
+  namespace error = lumiera::error;
+  using error::LUMIERA_ERROR_BOTTOM_VALUE;
+  
+  using util::_Fmt;
   
   
   /**
@@ -68,6 +79,7 @@ namespace model {
    * Automatically installs a callback to switch this link into detached state
    * when the target (widget) is destroyed.
    * @warning _not_ threadsafe
+   * @note only EX_SANE, since attaching, detaching and swapping might throw.
    */
   template<class TAR>
   class WLink
@@ -81,9 +93,12 @@ namespace model {
     public:
      ~WLink()
         {
-          this->clear();
+          try {
+            this->clear();
+          }
+          ERROR_LOG_AND_IGNORE (gui, "Detaching managed WLink from Widget")
         }
-      WLink()
+      WLink()  noexcept
         : widget_{nullptr}
         { }
       
@@ -103,20 +118,28 @@ namespace model {
         }
       
       WLink&
-      operator= (WLink other)
+      operator= (WLink other)  ///< @warning only EX_SANE
         {
           swap (*this, other);
           return *this;
         }
       
+      /** swap the pointees, including callback registration.
+       * @warning only EX_SANE.
+       *    Might leave the following intermediary states
+       *    - only r was detached
+       *    - both r and l are detached
+       *    - both detached, but only l attached to the former target of r,
+       *      while the former target of l is now completely detached.
+       */
       friend void
       swap (WLink& l, WLink& r)
         {
           TAR* tl = l.widget_;
           TAR* tr = r.widget_;
           if (tl == tr) return;
-          l.clear();
           r.clear();
+          l.clear();
           if (tr) l.widget_ = l.attachTo (*tr);
           if (tl) r.widget_ = r.attachTo (*tl);
         }
@@ -143,22 +166,26 @@ namespace model {
         }
       
       
-      /** detach and deactivate this link */
+      /** detach and deactivate this link
+       * @note EX_STRONG (but only under the assumption that also
+       *       sigc::trackable::remove_destroy_notify_cllback is EX_STRONG)
+       */
       void
-      clear()  noexcept
+      clear()
         {
           if (widget_)
-            try {
-              widget_->remove_destroy_notify_callback (&widget_);
-            }
-            catch(...) { }
+            widget_->remove_destroy_notify_callback (&widget_);
           widget_ = nullptr;
         }
       
       /** (re)connect this smart link to the given target.
-       *  Any previously existing link is detached beforehand */
+       *  Any previously existing link is detached beforehand
+       * @note EX_SANE only (assuming `sigc::trackable` is sane)
+       *    Might leave this WLink in disconnected state when throwing
+       * @throws error::External when registration with `sigc::trackable`  fails
+       */
       void
-      connect (TAR& otherTarget)  noexcept
+      connect (TAR& otherTarget)
         {
           if (widget_ == &otherTarget) return;
           clear();
@@ -170,15 +197,16 @@ namespace model {
       __ensureAlive()  const
         {
           if (not widget_)
-            throw lumiera::error::State ("zombie widget encountered"
-                                        , LERR_(BOTTOM_VALUE));
+            throw error::State ("zombie widget encountered"
+                               , LERR_(BOTTOM_VALUE));
         }
       
       /** @internal installs the necessary callback
        *   to detach this link in case the target is destroyed
+       *  @note EX_STRONG
        */
       TAR*
-      attachTo (TAR& target)  noexcept
+      attachTo (TAR& target)
         {
           try {
               target.add_destroy_notify_callback (&widget_
@@ -191,9 +219,14 @@ namespace model {
                                                     });
               return &target;
             }
-          catch(...)
+          catch (std::exception& problem)
             {
-              return nullptr;
+              throw error::External (problem, _Fmt{"WLink could not attach to %s. Problem is %s"} % target % problem);
+            }
+          catch (...)
+            {
+              ERROR (gui, "Unknown exception while attaching WLink");
+              throw error::External (_Fmt{"WLink could not attach to %s due to unidentified Problems"} % target);
             }
         }
     };
diff --git a/tests/51-gui-model.tests b/tests/51-gui-model.tests
index 22f7cf813..01bf86b76 100644
--- a/tests/51-gui-model.tests
+++ b/tests/51-gui-model.tests
@@ -17,6 +17,16 @@ return: 0
 END
 
 
+PLANNED "low-level widget access" ElementAccess_test <<END
+return: 0
+END
+
+
+TEST "managed link to widget" WLink_test <<END
+return: 0
+END
+
+
 TEST "storage record for captured UI state" StateMapGroupingStorage_test <<END
 return: 0
 END
diff --git a/tests/gui/model/w-link-test.cpp b/tests/gui/model/w-link-test.cpp
index 6ae177ed0..41074c6c0 100644
--- a/tests/gui/model/w-link-test.cpp
+++ b/tests/gui/model/w-link-test.cpp
@@ -144,6 +144,7 @@ namespace test {
         }
       
       
+      /** @test registration state is properly handled on copy, move and swap */
       void
       verify_copy()
         {
@@ -194,10 +195,19 @@ namespace test {
 //        l1 = uu;
 //        l1.connect(*uu);
           
-          // but it is a compile time check...
+          // But it is a compile time check...
+          // At runtime, only the bare pointer is managed
           l1 = reinterpret_cast<WLink<Wint>&&> (lu);
           CHECK ((int)uu->val == l1->val);
-          CHECK (not lu);
+          CHECK (not lu);               // assignment was actually a move
+          
+          // even the subversively attached link is managed properly
+          uu.reset();
+          CHECK (not l1);
+          
+          // others unaffected...
+          CHECK (not l2);
+          CHECK (l3);
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index cc4018dac..302e53143 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -3174,13 +3174,13 @@
 <node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine"/>
 <node CREATED="1534336325916" ID="ID_762624766" MODIFIED="1534336335351" TEXT="Bindeglieder"/>
 <node CREATED="1534336335963" ID="ID_1176525116" MODIFIED="1534336338575" TEXT="Werkzeug">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334810537" ID="ID_1326202399" MODIFIED="1534340000558" TEXT="Link zum Widget">
+<node COLOR="#338800" CREATED="1534334810537" FOLDED="true" ID="ID_1326202399" MODIFIED="1534436661859" TEXT="Link zum Widget">
 <linktarget COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" SOURCE="ID_203145360" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
-<icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334914667" ID="ID_511749457" MODIFIED="1534334932930" TEXT="smart-Ref">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334939159" ID="ID_1853703071" MODIFIED="1534335238329" TEXT="leer konstruierbar">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534334914667" ID="ID_511749457" MODIFIED="1534436573129" TEXT="smart-Ref">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534334939159" ID="ID_1853703071" MODIFIED="1534436570387" TEXT="leer konstruierbar">
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1534334944207" ID="ID_1989000221" MODIFIED="1534342998767" TEXT="bool testbar">
 <icon BUILTIN="button_ok"/>
@@ -3218,8 +3218,8 @@
 </richcontent>
 <icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534340006778" TEXT="WLink_test" VSHIFT="9">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534436566889" TEXT="WLink_test" VSHIFT="9">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534340031277" ID="ID_506504727" MODIFIED="1534341378412" TEXT="test-dummy-trackable">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -3233,6 +3233,15 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534436582390" ID="ID_880451727" MODIFIED="1534436621371" TEXT="nur EX_SANE">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1534436589806" ID="ID_1530771493" MODIFIED="1534436645751" TEXT="unter der Annahme, da&#xdf; sigc::trackable EX_SANE ist">
+<icon BUILTIN="info"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534436609323" ID="ID_1966799512" MODIFIED="1534436641103" TEXT="nicht wirklich gepr&#xfc;ft">
+<icon BUILTIN="yes"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From 42cbc9219fd4c3a1946be056036c05798660b73b Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 13:36:31 +0200
Subject: [PATCH 020/178] NotificateDisplay: link to a widget for error log
 display

The ErrorLogWidget is allocated and placed elsewhere
and not owned by the NotificationHub controller.
---
 src/gui/ctrl/notification-hub.hpp                | 14 ++++++++++----
 src/gui/id-scheme.hpp                            |  4 ++--
 src/gui/panel/infobox-panel.hpp                  |  4 ++--
 ...rror-log-widget.hpp => error-log-display.hpp} | 16 ++++++++--------
 wiki/thinkPad.ichthyo.mm                         | 10 ++++++----
 5 files changed, 28 insertions(+), 20 deletions(-)
 rename src/gui/widget/{error-log-widget.hpp => error-log-display.hpp} (92%)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 8c809f414..67a87f63e 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -56,7 +56,7 @@
  **   or as result of some display. However, the actual message content is _not_ state marked; it needs
  **   to be persisted elsewhere (in the session) and replayed from there if desired.
  ** 
- ** @see error-log-widget.hpp
+ ** @see error-log-display.hpp
  ** @see notification-service.hpp
  */
 
@@ -64,9 +64,10 @@
 #ifndef GUI_CTRL_NOTIFICATION_HUB_H
 #define GUI_CTRL_NOTIFICATION_HUB_H
 
-#include "gui/widget/error-log-widget.hpp"
-#include "gui/model/controller.hpp"
+#include "gui/widget/error-log-display.hpp"
 #include "lib/diff/tree-mutator.hpp"
+#include "gui/model/controller.hpp"
+#include "gui/model/w-link.hpp"
 
 //#include <memory>
 //#include <list>
@@ -76,6 +77,7 @@ namespace gui {
 namespace ctrl {
   
   using lib::diff::TreeMutator;
+  using model::WLink;
   
   
   
@@ -90,6 +92,7 @@ namespace ctrl {
     : public model::Controller
     {
       
+      
       /** content population and manipulation via UI-Bus */
       void
       buildMutator (lib::diff::TreeMutator::Handle buffer)  override
@@ -100,7 +103,7 @@ namespace ctrl {
           buffer.create (
             TreeMutator::build()
           );
-          UNIMPLEMENTED ("create a sensible binding between AssetManager in the session and AssetController in the UI");
+          UNIMPLEMENTED ("define and implement what need to be reflected from asset::ErrorLog");
         }
     
       
@@ -164,6 +167,9 @@ namespace ctrl {
       
     private:
       
+      /** collaboration with a log display allocated elsewhere */
+      WLink<widget::ErrorLogDisplay> widget_;
+      
     };
   
   
diff --git a/src/gui/id-scheme.hpp b/src/gui/id-scheme.hpp
index 6b225ac70..ff10add1b 100644
--- a/src/gui/id-scheme.hpp
+++ b/src/gui/id-scheme.hpp
@@ -75,7 +75,7 @@ namespace gui {
     class TimelineController;
   }
   namespace widget {
-    class ErrorLogWidget;
+    class ErrorLogDisplay;
   }
   namespace idi {
     
@@ -88,7 +88,7 @@ namespace gui {
     
     /* === primary component view types === */
     using TimelineView = timeline::TimelineController;
-    using ErrorLogView = widget::ErrorLogWidget;
+    using ErrorLogView = widget::ErrorLogDisplay;
     
     
     /**
diff --git a/src/gui/panel/infobox-panel.hpp b/src/gui/panel/infobox-panel.hpp
index 3b508bcba..b97060852 100644
--- a/src/gui/panel/infobox-panel.hpp
+++ b/src/gui/panel/infobox-panel.hpp
@@ -36,7 +36,7 @@
 
 
 #include "gui/panel/panel.hpp"
-#include "gui/widget/error-log-widget.hpp"
+#include "gui/widget/error-log-display.hpp"
 
 namespace gui  {
 namespace panel{
@@ -62,7 +62,7 @@ namespace panel{
       Gtk::ButtonBox buttons_;
       Gtk::Button button_1_;
       Gtk::Frame frame_;
-      widget::ErrorLogWidget errorLog_;
+      widget::ErrorLogDisplay errorLog_;
       
       void experiment_1();
     };
diff --git a/src/gui/widget/error-log-widget.hpp b/src/gui/widget/error-log-display.hpp
similarity index 92%
rename from src/gui/widget/error-log-widget.hpp
rename to src/gui/widget/error-log-display.hpp
index 4eebcfe7b..2c7d436bb 100644
--- a/src/gui/widget/error-log-widget.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -1,5 +1,5 @@
 /*
-  ERROR-LOG-WIDGET.hpp  -  display of error messages in a text box
+  ERROR-LOG-DISPLAY.hpp  -  display of error messages in a text box
 
   Copyright (C)         Lumiera.org
     2017,               Hermann Vosseler <Ichthyostega@web.de>
@@ -21,7 +21,7 @@
 */
 
 
-/** @file error-log-widget.hpp
+/** @file error-log-display.hpp
  ** Widget to display error messages to be accessible in non-modal way.
  ** Notifications are shown in a simple text window with scrollbars; new
  ** entries can be added with a severity level, causing the widget to scroll
@@ -33,8 +33,8 @@
  */
 
 
-#ifndef GUI_WIDGET_ERROR_LOG_WIDGET_H
-#define GUI_WIDGET_ERROR_LOG_WIDGET_H
+#ifndef GUI_WIDGET_ERROR_LOG_DISPLAY_H
+#define GUI_WIDGET_ERROR_LOG_DISPLAY_H
 
 #include "gui/gtk-base.hpp"
 #include "include/gui-notification-facade.h"
@@ -55,13 +55,13 @@ namespace widget {
    *       Just a text display box with scrollbars.
    *       Need to add formatting etc.
    */
-  class ErrorLogWidget
+  class ErrorLogDisplay
     : public Gtk::ScrolledWindow
     {
     public:
-     ~ErrorLogWidget() { };
+     ~ErrorLogDisplay() { };
       
-      ErrorLogWidget()
+      ErrorLogDisplay()
         : Gtk::ScrolledWindow()
         , textLog_{}
         {
@@ -118,4 +118,4 @@ namespace widget {
   
   
 }}// namespace gui::widget
-#endif /*GUI_WIDGET_ERROR_LOG_WIDGET_H*/
+#endif /*GUI_WIDGET_ERROR_LOG_DISPLAY_H*/
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 302e53143..b617519ed 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1773,20 +1773,22 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534339973276" TEXT="als Funktor konfiguriert">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534339983350" TEXT="Allozieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534451691196" TEXT="Allozieren">
+<arrowlink COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1533689143685" TEXT="View belegen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534451691196" TEXT="View belegen">
+<linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1533689142951" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1533689142190" TEXT="status-Flag">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1534451630033" TEXT="status-Flag">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>

From e7e09a642bd5cc2a4c1957730b80005c278d676e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 14:19:37 +0200
Subject: [PATCH 021/178] NotificateDisplay: delegate view allocation through a
 functor

---
 src/gui/ctrl/notification-hub.hpp | 11 ++++++++++-
 src/gui/interact/wizard.cpp       | 20 +++++++++++++++++++-
 src/gui/interact/wizard.hpp       |  6 +++++-
 wiki/thinkPad.ichthyo.mm          |  8 ++++----
 4 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 67a87f63e..16d25de80 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -69,6 +69,7 @@
 #include "gui/model/controller.hpp"
 #include "gui/model/w-link.hpp"
 
+#include <functional>
 //#include <memory>
 //#include <list>
 
@@ -159,14 +160,22 @@ namespace ctrl {
       
       
     public:
-      NotificationHub (ID identity, ctrl::BusTerm& nexus)
+      using WidgetAllocator = std::function<widget::ErrorLogDisplay&(void)>;
+      
+      
+      NotificationHub (ID identity, ctrl::BusTerm& nexus, WidgetAllocator wa)
         : model::Controller{identity, nexus}
+        , allocateWidget_{wa}
+        , widget_{}
         { }
       
      ~NotificationHub() { };
       
     private:
       
+      /** external operation to find or allocate an log display widget */
+      WidgetAllocator allocateWidget_;
+      
       /** collaboration with a log display allocated elsewhere */
       WLink<widget::ErrorLogDisplay> widget_;
       
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 49921c692..fec5d3eab 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -68,7 +68,12 @@ namespace interact {
   
   Wizard::Wizard (GlobalCtx& globals)
     : globalCtx_{globals}
-    , notificationHub_{new NotificationHub{getErrorLogID(), globals.uiBus_.getAccessPoint()}}
+    , notificationHub_{new NotificationHub{getErrorLogID()
+                                          ,globals.uiBus_.getAccessPoint()
+                                          ,[&]() -> widget::ErrorLogDisplay&
+                                             {
+                                               return allocateErrorLogView();
+                                          }} }
     { }
   
   
@@ -107,4 +112,17 @@ namespace interact {
   }
   
   
+  
+  /** @internal reach out to attach or allocate a display widget for the error log.
+   *  @todo as of 8/2018 we use "inside knowledge" to create this view in a hard wired location.
+   *        But in the end, this allocation task should be delegated to the ViewLocator
+   */
+  widget::ErrorLogDisplay&
+  Wizard::allocateErrorLogView()
+  {
+    UNIMPLEMENTED("reach out to attach or allocate a display widget for the error log");
+  }
+  
+  
+  
 }}// namespace gui::interact
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 213115302..8fb24532f 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -64,6 +64,9 @@ namespace ctrl {
   class GlobalCtx;
   class NotificationHub;
 }
+namespace widget {
+  class ErrorLogDisplay;
+}
 namespace interact {
   
   using std::unique_ptr;
@@ -92,8 +95,9 @@ namespace interact {
       void show_HelpAbout();
       
       static ID getErrorLogID() { return proc::asset::meta::theErrorLog_ID; }
-    private:
       
+    private:
+      widget::ErrorLogDisplay& allocateErrorLogView();
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b617519ed..b4da59e58 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1767,11 +1767,11 @@
 <icon BUILTIN="full-3"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534119972876" TEXT="Einrichtung">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534336575048" TEXT="Link zum Widget herstellen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534508403856" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534339973276" TEXT="als Funktor konfiguriert">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534508409365" TEXT="als Funktor konfiguriert">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534451691196" TEXT="Allozieren">
 <arrowlink COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" STARTARROW="None" STARTINCLINATION="180;-21;"/>

From 987aad44c1dcee36f38359c364bfb895fa696b1f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 15:59:52 +0200
Subject: [PATCH 022/178] DockAccess: add ability to retrieve a panel via
 PanelManager (#1144)

This is only a premature hack, since the whole structure of PanelManager is somewhat broken.
Moreover, the ViewLocator is not really ready for use yet, so this hack at least
allows us to "reach into" a top-level window and "grab" the pannel we need.
---
 src/gui/workspace/panel-manager.cpp |   9 +-
 src/gui/workspace/panel-manager.hpp |   3 +-
 wiki/thinkPad.ichthyo.mm            | 180 ++++++++++++++++++++++++----
 3 files changed, 162 insertions(+), 30 deletions(-)

diff --git a/src/gui/workspace/panel-manager.cpp b/src/gui/workspace/panel-manager.cpp
index 9df74186c..6d5ab5bc9 100644
--- a/src/gui/workspace/panel-manager.cpp
+++ b/src/gui/workspace/panel-manager.cpp
@@ -136,7 +136,7 @@ namespace workspace {
   }
   
   
-  void
+  panel::Panel&
   PanelManager::showPanel (const int description_index)
   {
     // Try and find the panel and present it if possible
@@ -149,9 +149,9 @@ namespace workspace {
             if (!panel->is_shown()) panel->show();
             
             Gdl::DockItem &dock_item = panel->getDockItem();
-         // ENSURE(dock_item);
             dock_item.present(dock_);
-            return;
+            ENSURE (panel);
+            return *panel;
           }
       }
     
@@ -160,6 +160,9 @@ namespace workspace {
     
     // Dock the item
     dock_.add_item(new_panel->getDockItem(), Gdl::DOCK_FLOATING);
+    
+    ENSURE (new_panel);
+    return *new_panel;
   }
   
   
diff --git a/src/gui/workspace/panel-manager.hpp b/src/gui/workspace/panel-manager.hpp
index 3608618a5..e78a87716 100644
--- a/src/gui/workspace/panel-manager.hpp
+++ b/src/gui/workspace/panel-manager.hpp
@@ -114,8 +114,9 @@ namespace workspace {
       /**
        * Shows a panel given a description index.
        * @param description_index The index of the panel type to show.
+       * @return existing or new Panel, docked within the realm of this PanelManager.
        */
-      void showPanel (const int description_index);
+      panel::Panel& showPanel (const int description_index);
       
       /**
        * Switches a panel from one type to another,
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b4da59e58..7699076f0 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1467,8 +1467,8 @@
 <node CREATED="1501939240217" ID="ID_325602880" MODIFIED="1518487921054" TEXT="triggert Proc-Command"/>
 <node CREATED="1501939252991" ID="ID_31140909" MODIFIED="1518487921054" TEXT="dieses sendet Mark zur&#xfc;ck"/>
 <node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1533608441262" TEXT="ein Widget im UI reagiert">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1533402876381" TEXT="fest verdrahtete ID">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1534508533795" TEXT="fest verdrahtete ID">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1533688905326" ID="ID_709974587" MODIFIED="1533688913192" TEXT="geh&#xf6;rt dem NotificationController"/>
 <node CREATED="1533688913996" ID="ID_33570780" MODIFIED="1533688928765">
 <richcontent TYPE="NODE"><html>
@@ -1489,7 +1489,7 @@
 <arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1533915741875" TEXT="wo ist die ID selber definiert">
+<node COLOR="#338800" CREATED="1533771813324" FOLDED="true" ID="ID_930319427" MODIFIED="1534508530448" TEXT="wo ist die ID selber definiert">
 <icon BUILTIN="help"/>
 <node CREATED="1533911116328" ID="ID_1079600246" MODIFIED="1533911128764" TEXT="sie mu&#xdf; insgesamt reprouzierbar sein"/>
 <node CREATED="1533911129424" ID="ID_659618402" MODIFIED="1533911139946" TEXT="zumindest innerhalb einer Program-Ausf&#xfc;hrung"/>
@@ -1608,7 +1608,7 @@
 <node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <icon BUILTIN="idea"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504200974955" ID="ID_1182589184" MODIFIED="1533608441265" TEXT="neues Dock">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504200974955" ID="ID_1182589184" MODIFIED="1534513052343" TEXT="neues Dock(Panel)">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1522936169270" ID="ID_1991244597" MODIFIED="1522936194888" TEXT="vorl&#xe4;ufig eingeh&#xe4;ngt...">
 <richcontent TYPE="NOTE"><html>
@@ -1621,7 +1621,7 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1533688853229" ID="ID_396920290" MODIFIED="1533915641929" TEXT="der NotificationController im Wizard erzeugt es">
+<node CREATED="1533688853229" ID="ID_396920290" MODIFIED="1534508612332" TEXT="der NotificationHub (Controller) im Wizard erzeugt es">
 <linktarget COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" SOURCE="ID_1850034653" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 <node CREATED="1533688860812" ID="ID_1631735052" MODIFIED="1533688874622" TEXT="direkt im aktiven WorkspaceWindow -&gt; PanelManager"/>
@@ -1629,6 +1629,12 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513356842" HGAP="34" ID="ID_1371608668" MODIFIED="1534513691371" TEXT="Begriffe kl&#xe4;ren...">
+<arrowlink COLOR="#8a9dae" DESTINATION="ID_1031484560" ENDARROW="Default" ENDINCLINATION="1135;-5718;" ID="Arrow_ID_1369217030" STARTARROW="None" STARTINCLINATION="1238;-672;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534513604257" ID="ID_724835920" MODIFIED="1534513612859" TEXT="Dock == DockArea"/>
+<node CREATED="1534513617543" ID="ID_1874506167" MODIFIED="1534513631737" TEXT="DockItem == Panel"/>
+</node>
 <node CREATED="1533607995396" ID="ID_806494084" MODIFIED="1533608457039" TEXT="wieder das Problem: wie bekommt man&apos;s">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533608171186" ID="ID_1446703192" MODIFIED="1533608449611" TEXT="#1104 how to instruct actions through panels">
 <arrowlink COLOR="#9e99b7" DESTINATION="ID_1943521361" ENDARROW="Default" ENDINCLINATION="-1423;-376;" ID="Arrow_ID_779469840" STARTARROW="None" STARTINCLINATION="920;0;"/>
@@ -1662,21 +1668,29 @@
 <node CREATED="1533608822826" ID="ID_1772827095" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534513758605" TEXT="PanelManger liefert Panel">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534513739655" ID="ID_1688346556" MODIFIED="1534513746810" TEXT="Suche per Typ-ID"/>
+<node CREATED="1534513747542" ID="ID_313486234" MODIFIED="1534513755681" TEXT="im Moment eine int-ID">
+<icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1504203667130" FOLDED="true" ID="ID_1745777873" MODIFIED="1533608415370" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
+</node>
+</node>
+<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534508658599" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
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+<linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="231;350;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
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 </node>
-<node CREATED="1504203749815" FOLDED="true" ID="ID_1057483680" MODIFIED="1525124215508" STYLE="fork" TEXT="Textanzeige-Box">
+<node CREATED="1504203749815" ID="ID_1057483680" MODIFIED="1534508696960" STYLE="fork" TEXT="Textanzeige-Box">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1504215911647" ID="ID_1066629131" MODIFIED="1518487921054" TEXT="GtkTextView"/>
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 <icon BUILTIN="idea"/>
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-<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1525124214729" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
+<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1534512772398" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
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@@ -1686,7 +1700,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1504216221389" FOLDED="true" ID="ID_355253225" MODIFIED="1525124214729" TEXT="Marks">
+<node CREATED="1504216221389" ID="ID_355253225" MODIFIED="1534508698470" TEXT="Marks">
 <node CREATED="1504216224349" ID="ID_1372118244" MODIFIED="1518487921054" TEXT="was ist die &quot;insert&quot;-Mark?">
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 </node>
@@ -1889,7 +1903,8 @@
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534334039368" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534508668953" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<arrowlink COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="231;350;" ID="Arrow_ID_1743659141" STARTARROW="None" STARTINCLINATION="397;197;"/>
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@@ -2219,7 +2234,7 @@
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_869056268" MODIFIED="1518487921056" TEXT="alle noch offenen Fenster verbergen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_869056268" MODIFIED="1534511296643" TEXT="alle noch offenen Fenster verbergen">
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@@ -2248,7 +2263,7 @@
 <node CREATED="1493768465482" ID="ID_1159523698" MODIFIED="1518487921056" TEXT="gtk_main aufrufen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1493768484007" ID="ID_384827553" MODIFIED="1518487921056" TEXT="von einem Gio::Application ableiten">
+<node CREATED="1493768484007" ID="ID_384827553" MODIFIED="1534511297619" TEXT="von einem Gio::Application ableiten">
 <arrowlink COLOR="#6d7495" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="1126;-247;" ID="Arrow_ID_1941890495" STARTARROW="None" STARTINCLINATION="-231;14;"/>
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@@ -3345,14 +3360,15 @@
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504191345606" ID="ID_1249897876" MODIFIED="1518487921060" TEXT="#1026 cleanup PanelManager">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504191345606" ID="ID_1249897876" MODIFIED="1534511409141" TEXT="#1026 cleanup PanelManager">
 <linktarget COLOR="#e1a169" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="-636;0;" ID="Arrow_ID_446871395" SOURCE="ID_125942292" STARTARROW="None" STARTINCLINATION="-311;562;"/>
+<linktarget COLOR="#ce6b5f" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="1299;0;" ID="Arrow_ID_1635700276" SOURCE="ID_1335931102" STARTARROW="Default" STARTINCLINATION="-1412;-1014;"/>
 <icon BUILTIN="flag-yellow"/>
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 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529235342511" ID="ID_1922506931" MODIFIED="1529235526604">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529235342511" ID="ID_1922506931" MODIFIED="1534511335350">
 <richcontent TYPE="NODE"><html>
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@@ -3387,7 +3403,7 @@
 <arrowlink COLOR="#872666" DESTINATION="ID_286857196" ENDARROW="Default" ENDINCLINATION="-684;0;" ID="Arrow_ID_1606936924" STARTARROW="Default" STARTINCLINATION="1461;0;"/>
 <node CREATED="1502411273154" HGAP="57" ID="ID_1087419686" MODIFIED="1518487921060" TEXT="komplett?" VSHIFT="39">
 <icon BUILTIN="help"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_159568066" MODIFIED="1518487921060" TEXT="alle noch offenen Fenster verbergen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_159568066" MODIFIED="1534511296643" TEXT="alle noch offenen Fenster verbergen">
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 <icon BUILTIN="flag-yellow"/>
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@@ -3431,7 +3447,7 @@
 <font BOLD="true" NAME="SansSerif" SIZE="13"/>
 <icon BUILTIN="info"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485457021805" ID="ID_1476863246" MODIFIED="1518487921060" TEXT="Gtk::UiManager ist deprecated">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485457021805" ID="ID_1476863246" MODIFIED="1534511297619" TEXT="Gtk::UiManager ist deprecated">
 <linktarget COLOR="#6d7495" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="1126;-247;" ID="Arrow_ID_1941890495" SOURCE="ID_384827553" STARTARROW="None" STARTINCLINATION="-231;14;"/>
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 <icon BUILTIN="messagebox_warning"/>
@@ -13967,7 +13983,7 @@
 <node CREATED="1489191528425" ID="ID_1331796226" MODIFIED="1533253376724" TEXT="Neuer Service hierf&#xfc;r in Proc">
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1488677809297" ID="ID_1520540731" MODIFIED="1518487921075" TEXT="Problem: Zugang / Wiring">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1488677809297" ID="ID_1520540731" MODIFIED="1534513495560" TEXT="Problem: Zugang / Wiring">
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 <icon BUILTIN="flag-yellow"/>
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@@ -14345,7 +14361,7 @@
 <icon BUILTIN="help"/>
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 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" ID="ID_629544763" MODIFIED="1529240085130" TEXT="Aufgabe: docking panels">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" ID="ID_629544763" MODIFIED="1534511335350" TEXT="Aufgabe: docking panels">
 <linktarget COLOR="#b0466a" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-849;-1967;" ID="Arrow_ID_1826422316" SOURCE="ID_1922506931" STARTARROW="None" STARTINCLINATION="690;23;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1504193340786" ID="ID_751993082" MODIFIED="1518487921077" TEXT="PanelLocator hier integrieren">
@@ -14356,9 +14372,28 @@
 </node>
 <node CREATED="1504370524687" ID="ID_816760158" MODIFIED="1518487921077" TEXT="PanelManager in den einzelnen Fenstern"/>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240056019" HGAP="33" ID="ID_1526164022" MODIFIED="1529240077686" TEXT="#1144 refactor dock handling" VSHIFT="-6">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534510952804" HGAP="21" ID="ID_1335931102" MODIFIED="1534511409140" TEXT="#1026 cleanup PanelManager" VSHIFT="1">
+<arrowlink COLOR="#ce6b5f" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="1299;0;" ID="Arrow_ID_1635700276" STARTARROW="Default" STARTINCLINATION="-1412;-1014;"/>
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1533609225355" ID="ID_1031484560" MODIFIED="1533609232990" TEXT="Definitionen festlegen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534510993903" ID="ID_1287156693" MODIFIED="1534511005821" TEXT="M&#xfc;llhaufen">
+<icon BUILTIN="clanbomber"/>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1534510983624" ID="ID_1587195721" MODIFIED="1534511031983" TEXT="setzt Konzept voraus">
+<arrowlink COLOR="#202e48" DESTINATION="ID_1526164022" ENDARROW="Default" ENDINCLINATION="7;-78;" ID="Arrow_ID_1840345516" STARTARROW="None" STARTINCLINATION="-84;65;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240056019" HGAP="33" ID="ID_1526164022" MODIFIED="1534511028176" TEXT="#1144 refactor dock handling" VSHIFT="-6">
+<linktarget COLOR="#202e48" DESTINATION="ID_1526164022" ENDARROW="Default" ENDINCLINATION="7;-78;" ID="Arrow_ID_1840345516" SOURCE="ID_1587195721" STARTARROW="None" STARTINCLINATION="-84;65;"/>
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1534511467567" HGAP="37" ID="ID_358403014" MODIFIED="1534512921306" TEXT="M&#xf6;glichkeiten der libGDL" VSHIFT="19">
+<arrowlink COLOR="#39478f" DESTINATION="ID_833641481" ENDARROW="Default" ENDINCLINATION="-1307;0;" ID="Arrow_ID_214595057" STARTARROW="None" STARTINCLINATION="-2073;0;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="13"/>
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1533609225355" ID="ID_1031484560" MODIFIED="1534513589857" TEXT="Definitionen festlegen">
+<linktarget COLOR="#8a9dae" DESTINATION="ID_1031484560" ENDARROW="Default" ENDINCLINATION="1135;-5718;" ID="Arrow_ID_1369217030" SOURCE="ID_1371608668" STARTARROW="None" STARTINCLINATION="1238;-672;"/>
 <node CREATED="1533609236849" ID="ID_429407869" MODIFIED="1533684335148" TEXT="was ist ein Panel?">
 <linktarget COLOR="#636eac" DESTINATION="ID_429407869" ENDARROW="Default" ENDINCLINATION="650;-595;" ID="Arrow_ID_1361390047" SOURCE="ID_1176492517" STARTARROW="None" STARTINCLINATION="1465;0;"/>
 <icon BUILTIN="yes"/>
@@ -14606,7 +14641,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1488677721565" ID="ID_850989325" MODIFIED="1518487921078" TEXT="Problem: Zugang">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1488677721565" ID="ID_850989325" MODIFIED="1534513495560" TEXT="Problem: Zugang">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_850989325" ENDARROW="Default" ENDINCLINATION="183;-575;" ID="Arrow_ID_1002016515" SOURCE="ID_1520540731" STARTARROW="None" STARTINCLINATION="341;286;"/>
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 <icon BUILTIN="flag-pink"/>
@@ -33201,7 +33236,7 @@
 </node>
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 </node>
-<node CREATED="1477523714526" ID="ID_654535915" MODIFIED="1518487921099" TEXT="Application verwenden">
+<node CREATED="1477523714526" ID="ID_654535915" MODIFIED="1534510412708" TEXT="Application verwenden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -33226,6 +33261,7 @@
     </ul>
   </body>
 </html></richcontent>
+<arrowlink COLOR="#627292" DESTINATION="ID_185528211" ENDARROW="Default" ENDINCLINATION="58;-164;" ID="Arrow_ID_390519319" STARTARROW="None" STARTINCLINATION="135;0;"/>
 </node>
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@@ -33266,7 +33302,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1495221242285" ID="ID_185528211" MODIFIED="1518487921099" TEXT="Applikation">
+<node CREATED="1495221242285" ID="ID_185528211" MODIFIED="1534510402108" TEXT="Applikation">
+<linktarget COLOR="#627292" DESTINATION="ID_185528211" ENDARROW="Default" ENDINCLINATION="58;-164;" ID="Arrow_ID_390519319" SOURCE="ID_654535915" STARTARROW="None" STARTINCLINATION="135;0;"/>
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 <node CREATED="1495222327564" ID="ID_175461027" MODIFIED="1518487921099" TEXT="initialisiert Gio::Application"/>
 <node CREATED="1495222337235" ID="ID_348472460" MODIFIED="1518487921099" TEXT="setzt ggfs. die Applikations-ID"/>
@@ -34225,7 +34262,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1504215825762" ID="ID_429138159" MODIFIED="1518487921101" TEXT="zur letzten Zeile scrollen">
+<node CREATED="1504215825762" ID="ID_429138159" MODIFIED="1534512772399" TEXT="zur letzten Zeile scrollen">
 <linktarget COLOR="#9bbabd" DESTINATION="ID_429138159" ENDARROW="Default" ENDINCLINATION="-1413;0;" ID="Arrow_ID_1025095859" SOURCE="ID_653669269" STARTARROW="None" STARTINCLINATION="-1151;202;"/>
 <node CREATED="1504220167228" ID="ID_622474093" MODIFIED="1518487921101" TEXT="scroll_to(iterator) ist ungenau">
 <icon BUILTIN="broken-line"/>
@@ -34276,7 +34313,98 @@
 </node>
 </node>
 </node>
-<node CREATED="1482365415326" HGAP="87" ID="ID_886002365" MODIFIED="1518487921102" TEXT="Standard C++" VSHIFT="-21">
+<node CREATED="1534511566130" HGAP="93" ID="ID_833641481" MODIFIED="1534512921306" TEXT="libGDL" VSHIFT="-58">
+<linktarget COLOR="#39478f" DESTINATION="ID_833641481" ENDARROW="Default" ENDINCLINATION="-1307;0;" ID="Arrow_ID_214595057" SOURCE="ID_358403014" STARTARROW="None" STARTINCLINATION="-2073;0;"/>
+<node CREATED="1534511647623" ID="ID_586745535" MODIFIED="1534511657393" TEXT="&quot;Gnome Diocking Library&quot;">
+<node CREATED="1534511675819" ID="ID_458805224" MODIFIED="1534511684396" TEXT="wird auch von Anjuta genutzt"/>
+<node CREATED="1534511663333" ID="ID_1116756676" MODIFIED="1534511675015" TEXT="historisch: Gnome Design Library"/>
+</node>
+<node CREATED="1534511978427" ID="ID_409550752" MODIFIED="1534511983598" TEXT="Dokumentation">
+<node CREATED="1534511984706" ID="ID_463901760" MODIFIED="1534511991197" TEXT="kaum online zu fnden">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node COLOR="#435e98" CREATED="1534511992737" ID="ID_555023917" LINK="file:///Werk/devel/a/gdlmm3-3.7.3/doc/reference/html/inherits.html" MODIFIED="1534512230013" TEXT="GDLmm Doxygen im Quellbaum">
+<font NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="info"/>
+</node>
+<node COLOR="#435e98" CREATED="1534512202029" ID="ID_1785775758" LINK="file:///Werk/devel/a/gdl-3.28.0/docs/reference/html/index.html" MODIFIED="1534512219419" TEXT="die GDL-Doxygen ist etwas ergiebiger">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1534511695553" ID="ID_1631118283" MODIFIED="1534511698468" TEXT="Begriffe">
+<node CREATED="1534512435774" HGAP="58" ID="ID_560032324" MODIFIED="1534512502595" TEXT="Widgets...." VSHIFT="-12">
+<node CREATED="1534512446077" ID="ID_1284930136" MODIFIED="1534512510705" TEXT="gdl::Dock">
+<arrowlink DESTINATION="ID_657079851" ENDARROW="Default" ENDINCLINATION="118;-10;" ID="Arrow_ID_1904059368" STARTARROW="None" STARTINCLINATION="118;-10;"/>
+</node>
+<node CREATED="1534512456307" ID="ID_1461586214" MODIFIED="1534512463966" TEXT="gdl::DockNotebook">
+<node COLOR="#84292b" CREATED="1534512627860" ID="ID_1972742181" MODIFIED="1534512653863" TEXT=" nicht GDLmm">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1534512470265" ID="ID_1122516503" MODIFIED="1534512473157" TEXT="gdl::DockPaned">
+<node COLOR="#84292b" CREATED="1534512627860" ID="ID_570071709" MODIFIED="1534512653863" TEXT=" nicht GDLmm">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1534512476873" ID="ID_405367338" MODIFIED="1534512520840" TEXT="gdl::DockItem">
+<arrowlink DESTINATION="ID_1059219569" ENDARROW="Default" ENDINCLINATION="125;-6;" ID="Arrow_ID_315465766" STARTARROW="None" STARTINCLINATION="107;-19;"/>
+</node>
+<node CREATED="1534512482992" ID="ID_615241196" MODIFIED="1534512487019" TEXT="gdl::DockBar"/>
+</node>
+<node CREATED="1534511737131" ID="ID_1114860371" MODIFIED="1534511973976" TEXT="DockObject">
+<node CREATED="1534512301864" ID="ID_949111740" MODIFIED="1534512308409" TEXT="abstrakte Basisklasse">
+<node CREATED="1534512313238" ID="ID_614492337" MODIFIED="1534512323953" TEXT="&quot;for all docking widgets&quot;"/>
+<node CREATED="1534512329540" ID="ID_661309088" MODIFIED="1534512336479" TEXT="implementiert GtkBuildable"/>
+</node>
+<node CREATED="1534512053505" ID="ID_1534912911" MODIFIED="1534512057020" TEXT="Subklassen">
+<node CREATED="1534512059048" ID="ID_657079851" MODIFIED="1534512510705" TEXT="gdl::Dock">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_657079851" ENDARROW="Default" ENDINCLINATION="118;-10;" ID="Arrow_ID_1904059368" SOURCE="ID_1284930136" STARTARROW="None" STARTINCLINATION="118;-10;"/>
+<node CREATED="1534512361544" ID="ID_172039334" MODIFIED="1534512364867" TEXT="docking area"/>
+</node>
+<node CREATED="1534512065896" ID="ID_1059219569" MODIFIED="1534512520840" TEXT="gdl::DockItem">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1059219569" ENDARROW="Default" ENDINCLINATION="125;-6;" ID="Arrow_ID_315465766" SOURCE="ID_405367338" STARTARROW="None" STARTINCLINATION="107;-19;"/>
+<node CREATED="1534512387109" ID="ID_173562614" MODIFIED="1534512751306" TEXT="Adds docking capability to its child widget">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      A dock item is a container widget that can be docked at different place.
+    </p>
+    <p>
+      It accepts a single child and adds a grip allowing the user to click on it
+    </p>
+    <p>
+      to drag and drop the widget.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      The grip is implemented as a GdlDockItemGrip
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1534512072391" ID="ID_1008938926" MODIFIED="1534512077442" TEXT="gdl::DockPlaceholder">
+<node CREATED="1534512416601" ID="ID_1452643437" MODIFIED="1534512417788" TEXT="A widget marking a docking place"/>
+</node>
+</node>
+</node>
+<node CREATED="1534511742274" ID="ID_11568474" MODIFIED="1534511744838" TEXT="DockMaster"/>
+<node CREATED="1534512085021" ID="ID_269318967" MODIFIED="1534512088456" TEXT="DockLayout"/>
+<node CREATED="1534512093148" ID="ID_767756183" MODIFIED="1534512095472" TEXT="DockBar">
+<node CREATED="1534512097459" ID="ID_1126576292" MODIFIED="1534512123802" TEXT="h&#xe4;lt minimierte Docks als Icons">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+<node CREATED="1534511699368" ID="ID_243375657" MODIFIED="1534511704819" TEXT="C++ Bindings"/>
+</node>
+<node CREATED="1482365415326" HGAP="71" ID="ID_886002365" MODIFIED="1534511598299" TEXT="Standard C++" VSHIFT="-25">
 <node CREATED="1482365430484" ID="ID_1414724077" MODIFIED="1518487921102" TEXT="chrono">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1482365434203" ID="ID_1026694670" MODIFIED="1518487921102" TEXT="lernen">
 <icon BUILTIN="flag-yellow"/>
@@ -34639,7 +34767,7 @@
 <node CREATED="1450489421795" ID="ID_12247357" MODIFIED="1518487921102" TEXT="lives until the end of the program"/>
 </node>
 </node>
-<node CREATED="1521779331036" ID="ID_1416813337" MODIFIED="1521783134469" TEXT="memory access ordering">
+<node CREATED="1521779331036" FOLDED="true" ID="ID_1416813337" MODIFIED="1534510508614" TEXT="memory access ordering">
 <linktarget COLOR="#5a6caa" DESTINATION="ID_1416813337" ENDARROW="Default" ENDINCLINATION="-1755;162;" ID="Arrow_ID_751165448" SOURCE="ID_1772115642" STARTARROW="None" STARTINCLINATION="-4287;-237;"/>
 <node CREATED="1521779387708" ID="ID_663855061" MODIFIED="1521779394271" TEXT="C++ memory model"/>
 <node CREATED="1521779395219" ID="ID_1890752917" MODIFIED="1521779403446" TEXT="C++11 Atomic library"/>

From c0dca2d9784b3fdee903e81e7747317de4ae10c9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 16:27:51 +0200
Subject: [PATCH 023/178] DockAccess: add lookup-by-Type function to
 PanelManager

...now the mess multiplies
---
 src/gui/workspace/dock-area.cpp     | 10 +++++++---
 src/gui/workspace/dock-area.hpp     | 28 ++++++++++++++++++++++++++--
 src/gui/workspace/panel-manager.cpp |  2 +-
 src/gui/workspace/panel-manager.hpp | 21 ++++++++++++++++++++-
 wiki/thinkPad.ichthyo.mm            | 28 ++++++++++++++++++++++++++--
 5 files changed, 80 insertions(+), 9 deletions(-)

diff --git a/src/gui/workspace/dock-area.cpp b/src/gui/workspace/dock-area.cpp
index 54df374aa..67918d2fc 100644
--- a/src/gui/workspace/dock-area.cpp
+++ b/src/gui/workspace/dock-area.cpp
@@ -143,7 +143,7 @@ namespace workspace {
   }
   
   
-  void
+  panel::Panel&
   DockArea::showPanel (const int description_index)
   {
     // Try and find the panel and present it if possible
@@ -158,7 +158,8 @@ namespace workspace {
             Gdl::DockItem &dock_item = panel->getDockItem();
          // ENSURE(dock_item);
             dock_item.present(dock_);
-            return;
+            ENSURE (panel);
+            return *panel;
           }
       }
     
@@ -167,6 +168,9 @@ namespace workspace {
     
     // Dock the item
     dock_.add_item(new_panel->getDockItem(), Gdl::DOCK_FLOATING);
+    
+    ENSURE (new_panel);
+    return *new_panel;
   }
   
   
@@ -256,7 +260,7 @@ namespace workspace {
   
   
   int
-  DockArea::findPanelDescription (const char* class_name)  const
+  DockArea::findPanelDescription (const char* class_name)
   {
     REQUIRE(class_name);
     
diff --git a/src/gui/workspace/dock-area.hpp b/src/gui/workspace/dock-area.hpp
index eb4b50f84..aaf63275d 100644
--- a/src/gui/workspace/dock-area.hpp
+++ b/src/gui/workspace/dock-area.hpp
@@ -28,6 +28,10 @@
  ** @todo 2017 need to clarify the intended behaviour of panels
  **                               ///////////////////////////////////////////////////////////////////////////TICKET #1097  clarify the role and behaviour of Panels
  ** @todo will be transformed into a Dock entity as of 6/2018   /////////////////////////////////////////////TICKET #1144  refactor dock handling
+ ** @todo as of 8/2018 this is a copy of the (still actively used) PanelManager;
+ **       the intention was to do a clean rewrite and then throw away
+ **       the old messy PanelManager implementation. Meanwhile I was forced to add
+ **       yet more cruft to PanelManager, just to keep it going. Beware!
  ** 
  ** @see actions.hpp
  */
@@ -117,8 +121,9 @@ namespace workspace {
       /**
        * Shows a panel given a description index.
        * @param description_index The index of the panel type to show.
+       * @return existing or new Panel, docked within the realm of this PanelManager.
        */
-      void showPanel (const int description_index);
+      panel::Panel& showPanel (const int description_index);
       
       /**
        * Switches a panel from one type to another,
@@ -138,6 +143,14 @@ namespace workspace {
       
       
     public:
+      /**
+       * retrieve the internal type-ID corresponding to the given panel implementation type.
+       * @return internal index into the #panelDescriptionList, or `-1` if not found.
+       * @deprecated the whole concept of panel identification needs overhaul 8/2018
+       */
+      template<class P>
+      static int findPanelID();
+      
       /** Gets the number of panel descriptions. */
       static int getPanelDescriptionCount();
       
@@ -166,7 +179,7 @@ namespace workspace {
        * @return Returns the index of the panel description found, or -1
        * if no description was found for this type.
        */
-      int findPanelDescription (const char* class_name)  const;
+      static int findPanelDescription (const char* class_name);
       
       /**
        * Creates a panel by description index.
@@ -338,5 +351,16 @@ namespace workspace {
     };
   
   
+  
+  
+  template<class P>
+  inline int
+  DockArea::findPanelID()
+  {
+    return DockArea::findPanelDescription (typeid(P).name());
+  }
+  
+  
+  
 }}// namespace gui::workspace
 #endif /*GUI_WORKSPACE_DOCK_AREA_H*/
diff --git a/src/gui/workspace/panel-manager.cpp b/src/gui/workspace/panel-manager.cpp
index 6d5ab5bc9..73a2619fb 100644
--- a/src/gui/workspace/panel-manager.cpp
+++ b/src/gui/workspace/panel-manager.cpp
@@ -252,7 +252,7 @@ namespace workspace {
   
   
   int
-  PanelManager::findPanelDescription (const char* class_name)  const
+  PanelManager::findPanelDescription (const char* class_name)
   {
     REQUIRE(class_name);
     
diff --git a/src/gui/workspace/panel-manager.hpp b/src/gui/workspace/panel-manager.hpp
index e78a87716..d1ed12fce 100644
--- a/src/gui/workspace/panel-manager.hpp
+++ b/src/gui/workspace/panel-manager.hpp
@@ -136,6 +136,14 @@ namespace workspace {
       
       
     public:
+      /**
+       * retrieve the internal type-ID corresponding to the given panel implementation type.
+       * @return internal index into the #panelDescriptionList, or `-1` if not found.
+       * @deprecated the whole concept of panel identification needs overhaul 8/2018
+       */
+      template<class P>
+      static int findPanelID();
+      
       /** Gets the number of panel descriptions. */
       static int getPanelDescriptionCount();
       
@@ -164,7 +172,7 @@ namespace workspace {
        * @return Returns the index of the panel description found, or -1
        * if no description was found for this type.
        */
-      int findPanelDescription (const char* class_name)  const;
+      static int findPanelDescription (const char* class_name);
       
       /**
        * Creates a panel by description index.
@@ -335,5 +343,16 @@ namespace workspace {
     };
   
   
+  
+  
+  template<class P>
+  inline int
+  PanelManager::findPanelID()
+  {
+    return PanelManager::findPanelDescription (typeid(P).name());
+  }
+  
+  
+  
 }}// namespace gui::workspace
 #endif /*GUI_WORKSPACE_PANEL_MANAGER_H*/
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7699076f0..b3d7cff79 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1668,9 +1668,15 @@
 <node CREATED="1533608822826" ID="ID_1772827095" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534513758605" TEXT="PanelManger liefert Panel">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534516350994" TEXT="PanelManger liefert Panel">
+<arrowlink COLOR="#99a7bd" DESTINATION="ID_1360472787" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_1137118362" STARTARROW="None" STARTINCLINATION="698;1616;"/>
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1534513739655" ID="ID_1688346556" MODIFIED="1534513746810" TEXT="Suche per Typ-ID"/>
+<node COLOR="#338800" CREATED="1534513739655" ID="ID_1688346556" MODIFIED="1534516101304" TEXT="Suche per Typ-ID">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1534516106942" ID="ID_1930444963" MODIFIED="1534516117582" TEXT="Referenz auf Panel zur&#xfc;ckliefern">
+<icon BUILTIN="button_ok"/>
+</node>
 <node CREATED="1534513747542" ID="ID_313486234" MODIFIED="1534513755681" TEXT="im Moment eine int-ID">
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -14378,6 +14384,24 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534510993903" ID="ID_1287156693" MODIFIED="1534511005821" TEXT="M&#xfc;llhaufen">
 <icon BUILTIN="clanbomber"/>
 </node>
+<node CREATED="1534515750767" HGAP="258" ID="ID_1360472787" MODIFIED="1534516350994" TEXT="bestehende Anforderungen" VSHIFT="-4">
+<linktarget COLOR="#99a7bd" DESTINATION="ID_1360472787" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_1137118362" SOURCE="ID_592805858" STARTARROW="None" STARTINCLINATION="698;1616;"/>
+<icon BUILTIN="info"/>
+<node CREATED="1534515787114" ID="ID_1305719148" MODIFIED="1534515800828" TEXT="Standard-Ausstattung mit Panels in jedem Fenster erzeugen"/>
+<node CREATED="1534515801632" ID="ID_1919529189" MODIFIED="1534515823721" TEXT="Panel-Description-Index verwenden"/>
+<node CREATED="1534515812439" ID="ID_1980530420" MODIFIED="1534515817842" TEXT="Liste aller Panels verwalten"/>
+<node CREATED="1534515834947" ID="ID_510158797" MODIFIED="1534515927180" TEXT="gew&#xfc;nschtes Panel anzeigen, ggfs erstellen">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_510158797" ENDARROW="Default" ENDINCLINATION="104;0;" ID="Arrow_ID_161519533" SOURCE="ID_819902852" STARTARROW="None" STARTINCLINATION="83;0;"/>
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_510158797" ENDARROW="Default" ENDINCLINATION="68;0;" ID="Arrow_ID_970402595" SOURCE="ID_747338376" STARTARROW="None" STARTINCLINATION="89;0;"/>
+</node>
+<node CREATED="1534515873606" ID="ID_819902852" MODIFIED="1534515892457" TEXT="Referenz auf ein Panel beziehen">
+<arrowlink DESTINATION="ID_510158797" ENDARROW="Default" ENDINCLINATION="104;0;" ID="Arrow_ID_161519533" STARTARROW="None" STARTINCLINATION="83;0;"/>
+</node>
+<node CREATED="1534515905714" ID="ID_747338376" MODIFIED="1534515927180" TEXT="Men&#xfc;-Aktionen: bestimmtes Panel anzeigen">
+<arrowlink DESTINATION="ID_510158797" ENDARROW="Default" ENDINCLINATION="68;0;" ID="Arrow_ID_970402595" STARTARROW="None" STARTINCLINATION="89;0;"/>
+</node>
+<node CREATED="1534515935653" ID="ID_1660813925" MODIFIED="1534516000145" TEXT="Panel durch ein Panel anderen Typs ersetzen"/>
+</node>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1534510983624" ID="ID_1587195721" MODIFIED="1534511031983" TEXT="setzt Konzept voraus">
 <arrowlink COLOR="#202e48" DESTINATION="ID_1526164022" ENDARROW="Default" ENDINCLINATION="7;-78;" ID="Arrow_ID_1840345516" STARTARROW="None" STARTINCLINATION="-84;65;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>

From 8755153d9509ca923846202e3e422a0250ff28b9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 18:12:45 +0200
Subject: [PATCH 024/178] DockAccess: consider a preliminary lookup
 implementation within PanelLocator

PanelLocator is a sub component of the WindowLocator (top-level GUI service).
Eventually this shall become a mere widget/component access service, with the
actual lookup and allocation logic layered on top through ViewLocator, configurable
via ViewSpec-DSL.

We can not implement the full scheme right now, since we're lacking knowledge
about internals of a typical Lumiera UI widget
---
 src/gui/ctrl/panel-locator.hpp  | 63 +++++++++++++++++++++--
 src/gui/ctrl/window-locator.cpp | 16 +++++-
 wiki/thinkPad.ichthyo.mm        | 91 +++++++++++++++++++++++++++++++--
 3 files changed, 160 insertions(+), 10 deletions(-)

diff --git a/src/gui/ctrl/panel-locator.hpp b/src/gui/ctrl/panel-locator.hpp
index a618e4901..2331dc664 100644
--- a/src/gui/ctrl/panel-locator.hpp
+++ b/src/gui/ctrl/panel-locator.hpp
@@ -25,7 +25,21 @@
  ** Access and query front-end to locate, access and place docking panels.
  ** This service is an implementation detail of the global WindowLocator and
  ** allows to abstract from the concrete top-level window when dealing with
- ** docking panels on a conceptual level
+ ** docking panels on a conceptual level.
+ ** 
+ ** @todo 8/2018 refactoring of docking panel handling is underway    ///////////////////////////////////////TICKET # 1144
+ **       The PanelLocator is planned to become the one central coordinating
+ **       manager, while the existing panel managers in each window will be
+ **       demoted to a mere DockArea, corresponding to a `gdl::Dock`
+ ** 
+ ** @todo 8/2018 there is some overlap with the (not yet fully functional)
+ **       ViewLocator in the InteractionDirector. Right now, PanelLocator
+ **       fills some gaps here and offers preliminary solutions for some
+ **       lookup and allocation tasks ultimately to be performed on a more
+ **       abstract level through the ViewSpec-DSL. This corresponds to the
+ **       observation, that PanelLocator and WindowLocator are somewhat
+ **       tangled currently. The goal is to turn them into access services,
+ **       and shift the allocation logic to the aforementioned higher level.
  ** 
  ** @see view-locator.hpp
  ** @see interaction-director.hpp
@@ -36,17 +50,29 @@
 #define GUI_CTRL_PANEL_LOCATOR_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/workspace/panel-manager.hpp"
+#include "lib/format-string.hpp"
+#include "lib/meta/util.hpp"
 #include "lib/nocopy.hpp"
 
+#include <type_traits>
 #include <memory>
 #include <list>
 
 
 namespace gui {
-namespace workspace { class WorkspaceWindow; }
+namespace workspace {
+  class WorkspaceWindow;
+}
+namespace panel {
+  class Panel;
+}
 namespace ctrl {
   
+  namespace error = lumiera::error;
   
+  using panel::Panel;
+  using util::_Fmt;
   using std::list;
   
   
@@ -68,13 +94,42 @@ namespace ctrl {
     public:
       PanelLocator (WindowList&);
       
-    private:
+      /** lookup or allocate "the" instance of the indicated Panel(subtype).
+       *  While there can be multiple instances of some panel type in various
+       *  windows, this function will look through a canonical search order
+       *  to either retrieve the first instance found, or create a new one
+       *  in the _primary window_.
+       * @return reference to the indicated Panel subclass (down-casted)
+       * @throw error::Invalid when requesting a target class not recognised
+       *    as known docking panel entity.
+       * @deprecated 8/2018 the (planned) ViewLocator will perform essentially
+       *    the same task, albeit on a more flexible and configurable level.
+       */
+      template<class PAN>
+      PAN& find_or_create();
       
+      
+    private:
+      panel::Panel& preliminary_impl_PanelLookup (int typeID);
     };
   
   
   
-  /** */
+  /** @remark delegating front-end for type safety and error handling. */
+  template<class PAN>
+  inline PAN&
+  PanelLocator::find_or_create()
+  {
+    static_assert (std::is_base_of<panel::Panel, PAN>(), "Lumiera Panel subclass expected");
+        
+    int typeID = workspace::PanelManager::findPanelID<PAN>();
+    if (-1 == typeID)
+      throw error::Invalid (_Fmt{"Requested type «%s» not usable as docking panel."}
+                                % util::typeStr<PAN>()
+                           ,error::LERR_(WRONG_TYPE));
+    
+    return dynamic_cast<PAN&> (preliminary_impl_PanelLookup (typeID));
+  }
   
   
   
diff --git a/src/gui/ctrl/window-locator.cpp b/src/gui/ctrl/window-locator.cpp
index 9dc8d7dda..c1152bd45 100644
--- a/src/gui/ctrl/window-locator.cpp
+++ b/src/gui/ctrl/window-locator.cpp
@@ -116,7 +116,7 @@ namespace ctrl {
   }
   
   
-  /** similar to #findFocusWindow(), for the 'has_focus' property
+  /** similar to #findActiveWindow(), for the 'has_focus' property
    * @note likewise we return the first window in list, in case no window
    *       has keyboard focus. This may very well be the case.
    */
@@ -176,6 +176,20 @@ namespace ctrl {
   }
   
   
+  /**
+   * @internal preliminary implementation of docking panel lookup and allocation.
+   * @todo 8/2018 the actual implementation shall eventually be provided by the ViewLocator
+   *       on a higher abstraction level, and configurable through the ViewSpec-DSL.
+   *       For now we use a braindead iterate-through-all-windows approach.
+   */
+  panel::Panel&
+  PanelLocator::preliminary_impl_PanelLookup (int typeID)
+  {
+    UNIMPLEMENTED ("search for existing panel in all windows, possibly create");
+  }
+
+  
+  
   
   
 }}// namespace gui::ctrl
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b3d7cff79..e3352f331 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1641,7 +1641,8 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node CREATED="1533608459780" ID="ID_1685349188" MODIFIED="1533608467039" TEXT="k&#xf6;nnen wir nicht sofort l&#xf6;sen"/>
-<node CREATED="1533608471274" ID="ID_1700599331" MODIFIED="1533608486779" TEXT="aber m&#xfc;ssen der L&#xf6;sung vorgreifen">
+<node CREATED="1533608471274" ID="ID_1700599331" MODIFIED="1534520115340" TEXT="aber m&#xfc;ssen der L&#xf6;sung vorgreifen">
+<linktarget COLOR="#c1a9be" DESTINATION="ID_1700599331" ENDARROW="Default" ENDINCLINATION="123;115;" ID="Arrow_ID_399610434" SOURCE="ID_193790781" STARTARROW="None" STARTINCLINATION="282;-120;"/>
 <icon BUILTIN="yes"/>
 <node CREATED="1533608548408" ID="ID_154643654" MODIFIED="1533608602022" TEXT="man fragt einen Service: gib mir....">
 <richcontent TYPE="NOTE"><html>
@@ -1668,7 +1669,7 @@
 <node CREATED="1533608822826" ID="ID_1772827095" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534516350994" TEXT="PanelManger liefert Panel">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534519994733" TEXT="PanelManger liefert Panel">
 <arrowlink COLOR="#99a7bd" DESTINATION="ID_1360472787" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_1137118362" STARTARROW="None" STARTINCLINATION="698;1616;"/>
 <icon BUILTIN="flag-yellow"/>
 <node COLOR="#338800" CREATED="1534513739655" ID="ID_1688346556" MODIFIED="1534516101304" TEXT="Suche per Typ-ID">
@@ -1681,6 +1682,18 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_1131466377" MODIFIED="1534520036655" TEXT="Zugang durch WindowLocator / PanelLocator">
+<arrowlink COLOR="#aab7cb" DESTINATION="ID_1614049284" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_139428133" STARTARROW="None" STARTINCLINATION="676;1738;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534520043319" ID="ID_1510680356" MODIFIED="1534520065894" TEXT="vorl&#xe4;ufige Implementierung">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1534520050783" ID="ID_193790781" MODIFIED="1534520115340" TEXT="greift vor auf ViewLocator">
+<arrowlink COLOR="#c1a9be" DESTINATION="ID_1700599331" ENDARROW="Default" ENDINCLINATION="123;115;" ID="Arrow_ID_399610434" STARTARROW="None" STARTINCLINATION="282;-120;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534508658599" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
@@ -14373,8 +14386,9 @@
 <node CREATED="1504193340786" ID="ID_751993082" MODIFIED="1518487921077" TEXT="PanelLocator hier integrieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1504370542909" ID="ID_1318769916" MODIFIED="1518487921077" TEXT="Query-Front-end"/>
-<node CREATED="1504371342426" ID="ID_1606296935" MODIFIED="1518487921077" TEXT="wird ben&#xf6;tigt vom ViewLocator (InteractionDirector)">
+<node CREATED="1504371342426" ID="ID_1606296935" MODIFIED="1534517606904" TEXT="wird ben&#xf6;tigt vom ViewLocator (InteractionDirector)">
 <arrowlink COLOR="#7c8aa8" DESTINATION="ID_1346454848" ENDARROW="Default" ENDINCLINATION="22;11;" ID="Arrow_ID_1776804306" STARTARROW="Default" STARTINCLINATION="313;-14;"/>
+<arrowlink COLOR="#546195" DESTINATION="ID_1633069135" ENDARROW="Default" ENDINCLINATION="-329;-257;" ID="Arrow_ID_1665485418" STARTARROW="None" STARTINCLINATION="273;0;"/>
 </node>
 <node CREATED="1504370524687" ID="ID_816760158" MODIFIED="1518487921077" TEXT="PanelManager in den einzelnen Fenstern"/>
 </node>
@@ -14384,7 +14398,7 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534510993903" ID="ID_1287156693" MODIFIED="1534511005821" TEXT="M&#xfc;llhaufen">
 <icon BUILTIN="clanbomber"/>
 </node>
-<node CREATED="1534515750767" HGAP="258" ID="ID_1360472787" MODIFIED="1534516350994" TEXT="bestehende Anforderungen" VSHIFT="-4">
+<node CREATED="1534515750767" HGAP="258" ID="ID_1360472787" MODIFIED="1534519968433" TEXT="bestehende Anforderungen" VSHIFT="-4">
 <linktarget COLOR="#99a7bd" DESTINATION="ID_1360472787" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_1137118362" SOURCE="ID_592805858" STARTARROW="None" STARTINCLINATION="698;1616;"/>
 <icon BUILTIN="info"/>
 <node CREATED="1534515787114" ID="ID_1305719148" MODIFIED="1534515800828" TEXT="Standard-Ausstattung mit Panels in jedem Fenster erzeugen"/>
@@ -14467,13 +14481,80 @@
 <node CREATED="1529235583621" ID="ID_627187553" MODIFIED="1529235589904" TEXT="&#xfc;bergreifende Steuerung">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240710412" HGAP="79" ID="ID_1137103744" MODIFIED="1529240803601" TEXT="Kontroll-Struktur einrichten" VSHIFT="-15">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1529240725545" ID="ID_1633069135" MODIFIED="1529240728445" TEXT="PanelLocator">
+<node CREATED="1529240725545" ID="ID_1633069135" MODIFIED="1534517606904" TEXT="PanelLocator">
+<linktarget COLOR="#546195" DESTINATION="ID_1633069135" ENDARROW="Default" ENDINCLINATION="-329;-257;" ID="Arrow_ID_1665485418" SOURCE="ID_1606296935" STARTARROW="None" STARTINCLINATION="273;0;"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240729817" ID="ID_899357717" MODIFIED="1529240766068" TEXT="h&#xe4;lt Kontakt zu allen Docks">
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240757677" ID="ID_1894889790" MODIFIED="1529240766845" TEXT="Lebenszyklus-Signale">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534519634333" ID="ID_298940282" MODIFIED="1534519643957" TEXT="vorl&#xe4;ufig">
+<icon BUILTIN="bell"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1534519645420" ID="ID_1509280168" MODIFIED="1534519736382" TEXT="&#xfc;bernimmt Funktionen vom ViewLocator">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...weil ich Stand 8/2018 nicht im Stande bin,
+    </p>
+    <p>
+      den ViewLocator wirklich soweit fertig zu coden, da&#223; er schon einsetzbar ist.
+    </p>
+    <p>
+      Problem ist die ganze abstrahierte Widget-Access-Schicht, die sich erst sinnvoll bauen l&#228;&#223;t,
+    </p>
+    <p>
+      wenn es schon wirkliche und funktionierende Widgets im System gibt.
+    </p>
+  </body>
+</html>
+</richcontent>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534515750767" ID="ID_1614049284" MODIFIED="1534520027505" TEXT="Panel-Lookup/Allocation">
+<linktarget COLOR="#aab7cb" DESTINATION="ID_1614049284" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_139428133" SOURCE="ID_1131466377" STARTARROW="None" STARTINCLINATION="676;1738;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520212473" ID="ID_172585735" MODIFIED="1534520248134" TEXT="durch alle WorkspaceWindows iterieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520223304" ID="ID_605426716" MODIFIED="1534520247134" TEXT="jeden lokalen PanelManager fragen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520258251" ID="ID_634139165" MODIFIED="1534520270331" TEXT="wenn nicht gefunden, dann erzeugen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534520296735" TEXT="PanelManage: reine Anfrage">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...bisher erzeugt die lookup-Operation automatisch
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520304493" ID="ID_1795676672" MODIFIED="1534520343635" TEXT="wo erzeugen?">
+<icon BUILTIN="help"/>
+<node CREATED="1534520344584" ID="ID_637468747" MODIFIED="1534520371103" TEXT="im primary window">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1534520354510" ID="ID_1031648158" MODIFIED="1534520366567" TEXT="im aktuellen Fenster">
+<icon BUILTIN="forward"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520233134" ID="ID_1625789153" MODIFIED="1534520242615" TEXT="typsicheres Front-end vorschalten">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1529240774003" ID="ID_1594029670" MODIFIED="1529240795457" TEXT="Zugriff auf Dock-Master">
 <icon BUILTIN="help"/>

From dcde80c4cdbbd2e7409b4727d71f0c831a1efd40 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 18:17:13 +0200
Subject: [PATCH 025/178] DockAccess: wire the new service through the Wizard

---
 src/gui/interact/wizard.cpp | 2 ++
 wiki/thinkPad.ichthyo.mm    | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index fec5d3eab..35f288963 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -33,6 +33,7 @@
 #include "gui/interact/wizard.hpp"
 #include "gui/interact/spot-locator.hpp"
 #include "gui/workspace/workspace-window.hpp"
+#include "gui/panel/infobox-panel.hpp"
 #include "gui/ctrl/notification-hub.hpp"
 #include "gui/ctrl/global-ctx.hpp"
 #include "lib/format-string.hpp"
@@ -120,6 +121,7 @@ namespace interact {
   widget::ErrorLogDisplay&
   Wizard::allocateErrorLogView()
   {
+    auto& infoBox = globalCtx_.windowLoc_.locatePanel().find_or_create<panel::InfoBoxPanel>();
     UNIMPLEMENTED("reach out to attach or allocate a display widget for the error log");
   }
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e3352f331..60a3d07f4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -14526,7 +14526,7 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520258251" ID="ID_634139165" MODIFIED="1534520270331" TEXT="wenn nicht gefunden, dann erzeugen">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534520296735" TEXT="PanelManage: reine Anfrage">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534522392135" TEXT="PanelManager: reine Anfrage">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -14540,7 +14540,7 @@
 </richcontent>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520304493" ID="ID_1795676672" MODIFIED="1534520343635" TEXT="wo erzeugen?">
+<node COLOR="#338800" CREATED="1534520304493" ID="ID_1795676672" MODIFIED="1534522378245" TEXT="wo erzeugen?">
 <icon BUILTIN="help"/>
 <node CREATED="1534520344584" ID="ID_637468747" MODIFIED="1534520371103" TEXT="im primary window">
 <icon BUILTIN="button_cancel"/>
@@ -14550,8 +14550,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520233134" ID="ID_1625789153" MODIFIED="1534520242615" TEXT="typsicheres Front-end vorschalten">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534520233134" ID="ID_1625789153" MODIFIED="1534522425348" TEXT="typsicheres Front-end vorschalten">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 855944eff3345be2d134a092cbfad56c7f37ba25 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 18:54:13 +0200
Subject: [PATCH 026/178] NotificationDisplay: turn the error log into an
 optional display

---
 src/gui/interact/wizard.cpp     |  2 +-
 src/gui/panel/infobox-panel.cpp | 30 +++++++++++++++----
 src/gui/panel/infobox-panel.hpp | 11 +++++--
 wiki/thinkPad.ichthyo.mm        | 52 +++++++++++++++++++++++++++++++--
 4 files changed, 83 insertions(+), 12 deletions(-)

diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 35f288963..16aee2056 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -122,7 +122,7 @@ namespace interact {
   Wizard::allocateErrorLogView()
   {
     auto& infoBox = globalCtx_.windowLoc_.locatePanel().find_or_create<panel::InfoBoxPanel>();
-    UNIMPLEMENTED("reach out to attach or allocate a display widget for the error log");
+    return infoBox.getLog();
   }
   
   
diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 0f4330e50..7e3d2c0d4 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -27,6 +27,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/panel/infobox-panel.hpp"
+#include "gui/widget/error-log-display.hpp"
 #include "lib/format-string.hpp"
 
 using util::_Fmt;
@@ -35,12 +36,15 @@ using Glib::ustring;
 namespace gui  {
 namespace panel{
   
+  using widget::ErrorLogDisplay;
+  
+  
   InfoBoxPanel::InfoBoxPanel (workspace::PanelManager& panelManager, Gdl::DockItem& dockItem)
     : Panel(panelManager, dockItem, getTitle(), getStockID())
     , twoParts_{Gtk::ORIENTATION_VERTICAL}
     , buttons_{}
     , frame_{"UI Integration Experiments"}
-    , errorLog_{}
+    , theLog_{}
     {
       twoParts_.pack_start(frame_);
       twoParts_.pack_start(buttons_, Gtk::PACK_SHRINK);
@@ -56,10 +60,7 @@ namespace panel{
       buttons_.add (button_1_);
       //(End)buttons...
       
-      frame_.set_border_width (5);
-      frame_.add (errorLog_);
-      
-      // show everything....
+      // show initial configuration....
       this->add (twoParts_);
       this->show_all();
     }
@@ -77,6 +78,23 @@ namespace panel{
   }
   
   
+  /** on demand allocate display of information / error log
+   * @note we assume it stays alive forever, once allocated
+   * @todo add possibility to collapse it
+   */
+  ErrorLogDisplay&
+  InfoBoxPanel::getLog()
+  {
+    if (not theLog_)
+      {
+        theLog_.reset (new ErrorLogDisplay{});
+        frame_.set_border_width (5);
+        frame_.add (*theLog_);
+        frame_.show_all();    ///////////////TODO necessary?
+      }
+    return *theLog_;
+  }
+  
   
   void
   InfoBoxPanel::experiment_1()
@@ -86,7 +104,7 @@ namespace panel{
     static uint bangNo{0};
     static _Fmt msgTemplate{"Bang #%d\n"};
     
-    errorLog_.showMsg(NOTE_WARN, msgTemplate % ++bangNo);
+    getLog().showMsg(NOTE_WARN, msgTemplate % ++bangNo);
   }
   
   
diff --git a/src/gui/panel/infobox-panel.hpp b/src/gui/panel/infobox-panel.hpp
index b97060852..eeaa43df9 100644
--- a/src/gui/panel/infobox-panel.hpp
+++ b/src/gui/panel/infobox-panel.hpp
@@ -36,9 +36,13 @@
 
 
 #include "gui/panel/panel.hpp"
-#include "gui/widget/error-log-display.hpp"
+
+#include <memory>
 
 namespace gui  {
+namespace widget {
+  class ErrorLogDisplay;
+}
 namespace panel{
   
   class InfoBoxPanel
@@ -57,12 +61,15 @@ namespace panel{
       static const char* getTitle();   ///< @deprecated need better design of the PanelManager /////TICKET #1026
       static const gchar* getStockID();
       
+      widget::ErrorLogDisplay& getLog();
+      
     private:
       Gtk::Box twoParts_;
       Gtk::ButtonBox buttons_;
       Gtk::Button button_1_;
       Gtk::Frame frame_;
-      widget::ErrorLogDisplay errorLog_;
+      
+      std::unique_ptr<widget::ErrorLogDisplay> theLog_;
       
       void experiment_1();
     };
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 60a3d07f4..c7d05857e 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1746,6 +1746,26 @@
 </node>
 <node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1533689061409" TEXT="InfoboxPanel anlegen">
 <icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534523190695" ID="ID_1941760302" MODIFIED="1534524666023" TEXT="ErrorLog bei Bedarf belegen">
+<arrowlink COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" STARTARROW="None" STARTINCLINATION="-4;127;"/>
+<linktarget COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" SOURCE="ID_329149746" STARTARROW="None" STARTINCLINATION="670;0;"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534523686836" ID="ID_1130300208" MODIFIED="1534524660559" TEXT="per smart-ptr halten">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1534523712521" ID="ID_1958771642" MODIFIED="1534524648697" TEXT="access-API">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1534523785342" ID="ID_1532375846" MODIFIED="1534524656476" TEXT="L&#xf6;schen nicht vorgesehen">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1534523790798" ID="ID_497989103" MODIFIED="1534523799758" TEXT="man kann ja das Panel schlie&#xdf;en">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534523721263" ID="ID_830255345" MODIFIED="1534523747373" TEXT="zuklappbar">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1534119944991" TEXT="NotificationController im Wizzard ansiedeln">
 <icon BUILTIN="full-1"/>
@@ -1811,8 +1831,9 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534451691196" TEXT="View belegen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534523234064" TEXT="View belegen">
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
+<linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="-4;127;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1533689142951" TEXT="mit close-signal verdrahten">
@@ -16243,7 +16264,23 @@
 </node>
 </node>
 </node>
-<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1518487921084" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor"/>
+<node CREATED="1534523269133" ID="ID_403796438" MODIFIED="1534523275983" TEXT="interne Struktur">
+<node CREATED="1534523277547" ID="ID_1662503806" MODIFIED="1534523282527" TEXT="FelerLog-Anzeige">
+<node COLOR="#338800" CREATED="1534523283443" ID="ID_329149746" MODIFIED="1534524676311" TEXT="erst bei Bedarf belegen">
+<arrowlink COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" STARTARROW="None" STARTINCLINATION="670;0;"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534523296448" ID="ID_734584528" MODIFIED="1534523306232" TEXT="zuklappbar">
+<icon BUILTIN="hourglass"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534523292305" ID="ID_1595061322" MODIFIED="1534523310503" TEXT="Platzhalter">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1534523149889" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor">
+<arrowlink DESTINATION="ID_1405249171" ENDARROW="Default" ENDINCLINATION="222;-82;" ID="Arrow_ID_1395046288" STARTARROW="None" STARTINCLINATION="644;0;"/>
+</node>
 </node>
 </node>
 <node CREATED="1504833434094" ID="ID_349655067" MODIFIED="1518487921084">
@@ -16486,7 +16523,16 @@
 <node CREATED="1504833565425" ID="ID_529173859" MODIFIED="1518487921084" TEXT="Timeline"/>
 <node CREATED="1504833569692" ID="ID_1708962269" MODIFIED="1518487921084" TEXT="Viewer"/>
 <node CREATED="1504833572687" ID="ID_57378390" MODIFIED="1518487921084" TEXT="(Asset)Bin"/>
-<node CREATED="1504833574246" ID="ID_897436866" MODIFIED="1518487921084" TEXT="Infobox"/>
+<node CREATED="1504833574246" ID="ID_897436866" MODIFIED="1518487921084" TEXT="Infobox">
+<node CREATED="1534523010591" ID="ID_1405249171" MODIFIED="1534523149890" TEXT="Zentrale Informationsanzeigen">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1405249171" ENDARROW="Default" ENDINCLINATION="222;-82;" ID="Arrow_ID_1395046288" SOURCE="ID_335470074" STARTARROW="None" STARTINCLINATION="644;0;"/>
+</node>
+<node CREATED="1534523024189" ID="ID_215944418" MODIFIED="1534523027438" TEXT="Fehlerlog">
+<node CREATED="1534523031493" ID="ID_1146002742" MODIFIED="1534523041375" TEXT="wird bei erstem Bedarf belegt"/>
+<node CREATED="1534523042035" ID="ID_1292242862" MODIFIED="1534523047246" TEXT="klappt bei Fehlern auf"/>
+</node>
+<node CREATED="1534523020334" ID="ID_295859017" MODIFIED="1534523021658" TEXT="Status"/>
+</node>
 <node CREATED="1504833575700" ID="ID_1470115932" MODIFIED="1518487921084" TEXT="Playcontrol"/>
 </node>
 </node>

From 76e79c02eea6577221d84ac4fd7d3b8e605abcc4 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 19:03:00 +0200
Subject: [PATCH 027/178] NotificationDisplay: view allocation can be pushed
 into the access functor

no need to define a private function on Wizard anymore, it just forwards the call
to the service actually implementing the view allocation. For now this is the
PanelLocator (and eventually this will be the ViewLocator / ViewSpecDSL)
---
 src/gui/interact/wizard.cpp | 17 +++--------------
 src/gui/interact/wizard.hpp |  4 ----
 wiki/thinkPad.ichthyo.mm    |  4 ++--
 3 files changed, 5 insertions(+), 20 deletions(-)

diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 16aee2056..2c7fe3b29 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -73,7 +73,9 @@ namespace interact {
                                           ,globals.uiBus_.getAccessPoint()
                                           ,[&]() -> widget::ErrorLogDisplay&
                                              {
-                                               return allocateErrorLogView();
+                                               return globalCtx_.windowLoc_.locatePanel()
+                                                         .find_or_create<panel::InfoBoxPanel>()
+                                                         .getLog();
                                           }} }
     { }
   
@@ -114,17 +116,4 @@ namespace interact {
   
   
   
-  /** @internal reach out to attach or allocate a display widget for the error log.
-   *  @todo as of 8/2018 we use "inside knowledge" to create this view in a hard wired location.
-   *        But in the end, this allocation task should be delegated to the ViewLocator
-   */
-  widget::ErrorLogDisplay&
-  Wizard::allocateErrorLogView()
-  {
-    auto& infoBox = globalCtx_.windowLoc_.locatePanel().find_or_create<panel::InfoBoxPanel>();
-    return infoBox.getLog();
-  }
-  
-  
-  
 }}// namespace gui::interact
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 8fb24532f..9a5a28e75 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -64,9 +64,6 @@ namespace ctrl {
   class GlobalCtx;
   class NotificationHub;
 }
-namespace widget {
-  class ErrorLogDisplay;
-}
 namespace interact {
   
   using std::unique_ptr;
@@ -97,7 +94,6 @@ namespace interact {
       static ID getErrorLogID() { return proc::asset::meta::theErrorLog_ID; }
       
     private:
-      widget::ErrorLogDisplay& allocateErrorLogView();
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c7d05857e..1153e5086 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1831,10 +1831,10 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534523234064" TEXT="View belegen">
+<node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534525243617" TEXT="View belegen">
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="-4;127;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1533689142951" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="flag-yellow"/>

From 67ac8601d835e80856362797bb00c883d3dead5c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 19:18:28 +0200
Subject: [PATCH 028/178] DockAccess: implement preliminary simplistic lookup
 and allocation

---
 src/gui/ctrl/window-locator.cpp     | 14 +++++++++++++-
 src/gui/workspace/panel-manager.cpp |  6 ++++++
 src/gui/workspace/panel-manager.hpp |  3 +++
 wiki/thinkPad.ichthyo.mm            | 12 ++++++------
 4 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/src/gui/ctrl/window-locator.cpp b/src/gui/ctrl/window-locator.cpp
index c1152bd45..0338b6b1e 100644
--- a/src/gui/ctrl/window-locator.cpp
+++ b/src/gui/ctrl/window-locator.cpp
@@ -185,7 +185,19 @@ namespace ctrl {
   panel::Panel&
   PanelLocator::preliminary_impl_PanelLookup (int typeID)
   {
-    UNIMPLEMENTED ("search for existing panel in all windows, possibly create");
+    REQUIRE (not isnil(windowList_));
+    
+    for (auto window : windowList_)
+      if (window->getPanelManager().hasPanel (typeID))
+        return window->getPanelManager().showPanel (typeID);
+    
+    // no instance of the desired panel type exists yet...
+    for (auto window : windowList_)
+      if (window->is_active())
+        return window->getPanelManager().showPanel (typeID);
+    
+    // use the first window in list when none is active
+    return windowList_.front()->getPanelManager().showPanel (typeID);
   }
 
   
diff --git a/src/gui/workspace/panel-manager.cpp b/src/gui/workspace/panel-manager.cpp
index 73a2619fb..8691cac6c 100644
--- a/src/gui/workspace/panel-manager.cpp
+++ b/src/gui/workspace/panel-manager.cpp
@@ -136,6 +136,12 @@ namespace workspace {
   }
   
   
+  bool
+  PanelManager::hasPanel (const int description_index)
+  {
+    UNIMPLEMENTED ("search for a specific panel");
+  }
+
   panel::Panel&
   PanelManager::showPanel (const int description_index)
   {
diff --git a/src/gui/workspace/panel-manager.hpp b/src/gui/workspace/panel-manager.hpp
index d1ed12fce..1c136edd0 100644
--- a/src/gui/workspace/panel-manager.hpp
+++ b/src/gui/workspace/panel-manager.hpp
@@ -118,6 +118,9 @@ namespace workspace {
        */
       panel::Panel& showPanel (const int description_index);
       
+      /** was the indicated panel already allocated within this PanelManager's realm? */
+      bool hasPanel (const int description_index);
+      
       /**
        * Switches a panel from one type to another,
        * without touching the underlying GdlDockItem.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 1153e5086..beaab6ce8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -14539,14 +14539,14 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534515750767" ID="ID_1614049284" MODIFIED="1534520027505" TEXT="Panel-Lookup/Allocation">
 <linktarget COLOR="#aab7cb" DESTINATION="ID_1614049284" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_139428133" SOURCE="ID_1131466377" STARTARROW="None" STARTINCLINATION="676;1738;"/>
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520212473" ID="ID_172585735" MODIFIED="1534520248134" TEXT="durch alle WorkspaceWindows iterieren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534520212473" ID="ID_172585735" MODIFIED="1534526235983" TEXT="durch alle WorkspaceWindows iterieren">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520223304" ID="ID_605426716" MODIFIED="1534520247134" TEXT="jeden lokalen PanelManager fragen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534520223304" ID="ID_605426716" MODIFIED="1534526241279" TEXT="jeden lokalen PanelManager fragen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520258251" ID="ID_634139165" MODIFIED="1534520270331" TEXT="wenn nicht gefunden, dann erzeugen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534520258251" ID="ID_634139165" MODIFIED="1534526246434" TEXT="wenn nicht gefunden, dann erzeugen">
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534522392135" TEXT="PanelManager: reine Anfrage">
 <richcontent TYPE="NOTE"><html>
   <head>

From a151f28d86ed8e10d74fd8cc569b71025bcf36a6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Aug 2018 19:38:50 +0200
Subject: [PATCH 029/178] NotificationDisplay: solved that nasty topic of dock
 access for now

phew...
---
 src/gui/ctrl/notification-hub.hpp   |  9 ++++++
 src/gui/workspace/dock-area.cpp     | 10 +++++++
 src/gui/workspace/dock-area.hpp     |  3 ++
 src/gui/workspace/panel-manager.cpp |  6 +++-
 wiki/thinkPad.ichthyo.mm            | 44 ++++++++++++++---------------
 5 files changed, 49 insertions(+), 23 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 16d25de80..4e84afa0e 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -179,6 +179,15 @@ namespace ctrl {
       /** collaboration with a log display allocated elsewhere */
       WLink<widget::ErrorLogDisplay> widget_;
       
+      
+      widget::ErrorLogDisplay&
+      getWidget()
+        {
+          if (not widget_)
+            widget_.connect (allocateWidget_());
+          return *widget_;
+        }
+      
     };
   
   
diff --git a/src/gui/workspace/dock-area.cpp b/src/gui/workspace/dock-area.cpp
index 67918d2fc..e4e5abaff 100644
--- a/src/gui/workspace/dock-area.cpp
+++ b/src/gui/workspace/dock-area.cpp
@@ -42,6 +42,7 @@
 #include "gui/panel/timeline-panel-obsolete.hpp"
 
 #include "include/logging.h"
+#include "lib/util-foreach.hpp"
 
 using namespace boost;       ////////////////////////////////////////////////////////////////////////////////TICKET #1071 no wildcard includes please!
 using namespace std;         ////////////////////////////////////////////////////////////////////////////////TICKET #1071 no wildcard includes please!
@@ -143,6 +144,15 @@ namespace workspace {
   }
   
   
+  bool
+  DockArea::hasPanel (const int description_index)
+  {
+    return util::has_any (panels_, [=](panel::Panel* panel)
+                                    {
+                                      return getPanelType(panel) == description_index;
+                                    });
+  }
+
   panel::Panel&
   DockArea::showPanel (const int description_index)
   {
diff --git a/src/gui/workspace/dock-area.hpp b/src/gui/workspace/dock-area.hpp
index aaf63275d..683d4cf91 100644
--- a/src/gui/workspace/dock-area.hpp
+++ b/src/gui/workspace/dock-area.hpp
@@ -125,6 +125,9 @@ namespace workspace {
        */
       panel::Panel& showPanel (const int description_index);
       
+      /** was the indicated panel already allocated within this PanelManager's realm? */
+      bool hasPanel (const int description_index);
+      
       /**
        * Switches a panel from one type to another,
        * without touching the underlying GdlDockItem.
diff --git a/src/gui/workspace/panel-manager.cpp b/src/gui/workspace/panel-manager.cpp
index 8691cac6c..87194261c 100644
--- a/src/gui/workspace/panel-manager.cpp
+++ b/src/gui/workspace/panel-manager.cpp
@@ -37,6 +37,7 @@
 #include "gui/panel/timeline-panel-obsolete.hpp"
 
 #include "include/logging.h"
+#include "lib/util-foreach.hpp"
 
 using namespace boost;       ////////////////////////////////////////////////////////////////////////////////TICKET #1071 no wildcard includes please!
 using namespace std;         ////////////////////////////////////////////////////////////////////////////////TICKET #1071 no wildcard includes please!
@@ -139,7 +140,10 @@ namespace workspace {
   bool
   PanelManager::hasPanel (const int description_index)
   {
-    UNIMPLEMENTED ("search for a specific panel");
+    return util::has_any (panels_, [=](panel::Panel* panel)
+                                    {
+                                      return getPanelType(panel) == description_index;
+                                    });
   }
 
   panel::Panel&
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index beaab6ce8..b277797fe 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1608,8 +1608,8 @@
 <node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <icon BUILTIN="idea"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504200974955" ID="ID_1182589184" MODIFIED="1534513052343" TEXT="neues Dock(Panel)">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1534527069860" TEXT="neues Dock(Panel)">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1522936169270" ID="ID_1991244597" MODIFIED="1522936194888" TEXT="vorl&#xe4;ufig eingeh&#xe4;ngt...">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -1629,9 +1629,9 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513356842" HGAP="34" ID="ID_1371608668" MODIFIED="1534513691371" TEXT="Begriffe kl&#xe4;ren...">
+<node COLOR="#435e98" CREATED="1534513356842" HGAP="34" ID="ID_1371608668" MODIFIED="1534527057298" TEXT="Begriffe kl&#xe4;ren...">
 <arrowlink COLOR="#8a9dae" DESTINATION="ID_1031484560" ENDARROW="Default" ENDINCLINATION="1135;-5718;" ID="Arrow_ID_1369217030" STARTARROW="None" STARTINCLINATION="1238;-672;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534513604257" ID="ID_724835920" MODIFIED="1534513612859" TEXT="Dock == DockArea"/>
 <node CREATED="1534513617543" ID="ID_1874506167" MODIFIED="1534513631737" TEXT="DockItem == Panel"/>
 </node>
@@ -1669,9 +1669,9 @@
 <node CREATED="1533608822826" ID="ID_1772827095" MODIFIED="1533608834604" TEXT="Schema zur reproduzierbaren ID-Generierung ist notwendig"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534519994733" TEXT="PanelManger liefert Panel">
+<node COLOR="#338800" CREATED="1534513723209" ID="ID_592805858" MODIFIED="1534526968091" TEXT="PanelManger liefert Panel">
 <arrowlink COLOR="#99a7bd" DESTINATION="ID_1360472787" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_1137118362" STARTARROW="None" STARTINCLINATION="698;1616;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534513739655" ID="ID_1688346556" MODIFIED="1534516101304" TEXT="Suche per Typ-ID">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -1682,9 +1682,9 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534513723209" ID="ID_1131466377" MODIFIED="1534520036655" TEXT="Zugang durch WindowLocator / PanelLocator">
+<node COLOR="#338800" CREATED="1534513723209" ID="ID_1131466377" MODIFIED="1534526965635" TEXT="Zugang durch WindowLocator / PanelLocator">
 <arrowlink COLOR="#aab7cb" DESTINATION="ID_1614049284" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_139428133" STARTARROW="None" STARTINCLINATION="676;1738;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534520043319" ID="ID_1510680356" MODIFIED="1534520065894" TEXT="vorl&#xe4;ufige Implementierung">
 <icon BUILTIN="idea"/>
 </node>
@@ -1696,10 +1696,10 @@
 </node>
 </node>
 </node>
-<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534508658599" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
+<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534527104730" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
 <linktarget COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" SOURCE="ID_812129962" STARTARROW="None" STARTINCLINATION="808;0;"/>
-<linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="231;350;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
-<icon BUILTIN="pencil"/>
+<linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
+<icon BUILTIN="forward"/>
 <node CREATED="1504203746239" ID="ID_697660682" MODIFIED="1518487921054" TEXT="Scroll-Pane">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -1746,7 +1746,7 @@
 </node>
 <node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1533689061409" TEXT="InfoboxPanel anlegen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1534523190695" ID="ID_1941760302" MODIFIED="1534524666023" TEXT="ErrorLog bei Bedarf belegen">
+<node COLOR="#338800" CREATED="1534523190695" FOLDED="true" ID="ID_1941760302" MODIFIED="1534527439233" TEXT="ErrorLog bei Bedarf belegen">
 <arrowlink COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" STARTARROW="None" STARTINCLINATION="-4;127;"/>
 <linktarget COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" SOURCE="ID_329149746" STARTARROW="None" STARTINCLINATION="670;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -1820,15 +1820,15 @@
 <icon BUILTIN="full-3"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534119972876" TEXT="Einrichtung">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534508403856" TEXT="Link zum Widget herstellen">
+<node COLOR="#338800" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534527345585" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534508409365" TEXT="als Funktor konfiguriert">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534451691196" TEXT="Allozieren">
+<node COLOR="#338800" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534527003796" TEXT="Allozieren">
 <arrowlink COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" STARTARROW="None" STARTINCLINATION="180;-21;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534525243617" TEXT="View belegen">
@@ -1943,8 +1943,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534508668953" TEXT="ErrorLogView vorl&#xe4;ufig...">
-<arrowlink COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="231;350;" ID="Arrow_ID_1743659141" STARTARROW="None" STARTINCLINATION="397;197;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534527104730" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<arrowlink COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" STARTARROW="None" STARTINCLINATION="397;197;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
@@ -14536,9 +14536,9 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534515750767" ID="ID_1614049284" MODIFIED="1534520027505" TEXT="Panel-Lookup/Allocation">
+<node COLOR="#338800" CREATED="1534515750767" FOLDED="true" ID="ID_1614049284" MODIFIED="1534527036807" TEXT="Panel-Lookup/Allocation">
 <linktarget COLOR="#aab7cb" DESTINATION="ID_1614049284" ENDARROW="Default" ENDINCLINATION="772;-6907;" ID="Arrow_ID_139428133" SOURCE="ID_1131466377" STARTARROW="None" STARTINCLINATION="676;1738;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534520212473" ID="ID_172585735" MODIFIED="1534526235983" TEXT="durch alle WorkspaceWindows iterieren">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -14547,7 +14547,7 @@
 </node>
 <node COLOR="#338800" CREATED="1534520258251" ID="ID_634139165" MODIFIED="1534526246434" TEXT="wenn nicht gefunden, dann erzeugen">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534522392135" TEXT="PanelManager: reine Anfrage">
+<node COLOR="#338800" CREATED="1534520271354" ID="ID_1722998809" MODIFIED="1534526944653" TEXT="PanelManager: reine Anfrage">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -14559,7 +14559,7 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1534520304493" ID="ID_1795676672" MODIFIED="1534522378245" TEXT="wo erzeugen?">
 <icon BUILTIN="help"/>

From 7846460530beb0872376a7cdf04e8436a45a884c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 20 Aug 2018 02:58:41 +0200
Subject: [PATCH 030/178] NotificationDisplay: code up controller protocol in
 NotificationHub

...mostly by delegating to (stubbed) functions in ErrorLogDisplay
---
 src/gui/ctrl/notification-hub.hpp         |  34 +-
 src/gui/interact/interaction-director.cpp |   3 -
 src/gui/setting/asset-controller.cpp      |   3 -
 src/gui/widget/error-log-display.hpp      |  49 +++
 wiki/thinkPad.ichthyo.mm                  | 509 ++++++++++++++++++++--
 5 files changed, 551 insertions(+), 47 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 4e84afa0e..5b3a5b685 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -98,9 +98,6 @@ namespace ctrl {
       void
       buildMutator (lib::diff::TreeMutator::Handle buffer)  override
         {
-      //  using Attrib = std::pair<const string,string>;
-      //  using lib::diff::collection;
-          
           buffer.create (
             TreeMutator::build()
           );
@@ -113,49 +110,64 @@ namespace ctrl {
       virtual bool
       doReset()  override
         {
-          UNIMPLEMENTED ("Clear log contents, collapse widget, clear error state");
+          if (not widget_) return false;
+          
+          widget_->clearAll();
+          widget_->expand (false);
+          return true;
         }
       
       virtual bool
       doExpand (bool yes)  override
         {
-          UNIMPLEMENTED ("Allocate Widget if necessary, expand widget");
+          if (widget_ or yes)
+             getWidget().expand (yes);
+          return false; // expand state not sticky
         }
       
       virtual void
       doRevealYourself()  override
         {
-          UNIMPLEMENTED ("TODO: how can the Log-Widget be 'revealed'?? Possibly allocate Widget, expand it. But how to make it visible?");
+          getWidget().revealYourself(); // implies also expand
         }
       
       virtual bool
       doMsg (string text)  override
         {
-          UNIMPLEMENTED ("Possibly allocate Widget, place text into its buffer. No need to expand");
+          getWidget().addMsg (text);
+          return false; // logging is no persistent state
         }
       
       virtual bool
       doClearMsg ()  override
         {
-          UNIMPLEMENTED ("remove all mere information messages");
+          if (widget_)
+            widget_->clearInfoMsg();
+          return false; // not persistent (sticky)
         }
       
       virtual bool
       doErr (string text)  override
         {
-          UNIMPLEMENTED ("Set error state. Allocate Widget if necessary, expand widget, place error message into its buffer");
+          getWidget().addError (text);
+          widget_->expand (true);
+          return false;
         }
       
       virtual bool
       doClearErr ()  override
         {
-          UNIMPLEMENTED ("clear error state. If widget exists, turn all error entries into mere information entries");
+          if (widget_)
+            widget_->turnError_into_InfoMsg();
+          return false; // not persistent (sticky)
         }
       
       virtual void
       doFlash()  override
         {
-          UNIMPLEMENTED ("If widget exists: expand it, trigger its flash function (paint with timeout). TODO also doRevealYourself.");
+          if (not widget_) return;
+          widget_->revealYourself();
+          widget_->triggerFlash();
         }
       
       
diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index 644fe1981..3b63432e0 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -131,9 +131,6 @@ namespace interact {
   void
   InteractionDirector::buildMutator (TreeMutator::Handle buffer)
   {
-//  using Attrib = std::pair<const string,string>;
-//  using lib::diff::collection;
-    
     buffer.create (
       TreeMutator::build()
     );
diff --git a/src/gui/setting/asset-controller.cpp b/src/gui/setting/asset-controller.cpp
index 352bd751d..bda517cdd 100644
--- a/src/gui/setting/asset-controller.cpp
+++ b/src/gui/setting/asset-controller.cpp
@@ -63,9 +63,6 @@ namespace setting {
   void
   AssetController::buildMutator (TreeMutator::Handle buffer)
   {
-//  using Attrib = std::pair<const string,string>;
-//  using lib::diff::collection;
-    
     buffer.create (
       TreeMutator::build()
     );
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 2c7d436bb..0e16dab30 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -94,6 +94,55 @@ namespace widget {
           }
         }
       
+      void
+      expand (bool yes)
+        {
+          UNIMPLEMENTED ("Maintain expansion state, build a collapsed representation.");
+        }
+      
+      void
+      clearAll()
+        {
+          UNIMPLEMENTED ("empty buffer and discard all error bookmarks");
+        }
+      
+      void
+      addMsg (string text)
+        {
+          UNIMPLEMENTED ("add normal information message to buffer");
+        }
+      
+      void
+      addError (string text)
+        {
+          UNIMPLEMENTED ("add error with special tag and bookmark");
+        }
+      
+      void
+      clearInfoMsg()
+        {
+          UNIMPLEMENTED ("clear all mere information messages; then re-insert the errors with tags");
+        }
+      
+      void
+      turnError_into_InfoMsg()
+        {
+          UNIMPLEMENTED ("visit all errors and downgrade the markup; discard all bookmarks");
+        }
+      
+      void
+      triggerFlash()
+        {
+          UNIMPLEMENTED ("paint and set callback-timeout to return to normal state");
+        }
+      
+      void
+      revealYourself()
+        {
+          UNIMPLEMENTED ("store a link to parent. Ask parent to reveal us. Switch to expanded display");
+        }
+
+      
       
     private:/* ===== Internals ===== */
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b277797fe..7aa9681dc 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1734,6 +1734,76 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1533402997076" TEXT="Fehler-Level erkennen">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1534725208028" TEXT="Operationen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1534725415160" TEXT="expand">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1534725407905" TEXT="collapsed-Repr&#xe4;sentation schaffen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1534725417504" TEXT="addMsg">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1534725420632" TEXT="addError">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1534725491846" TEXT="spezieller Markup">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1534725506867" TEXT="Bookmark speichern">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1534725674269" TEXT="clearInfoMsg">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725716254" ID="ID_1648079400" MODIFIED="1534725735604" TEXT="Fehler-Texte beiseite Speichern">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725675884" ID="ID_1549487041" MODIFIED="1534725711920" TEXT="Textbuffer leeren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725690450" ID="ID_314460083" MODIFIED="1534725710992" TEXT="Fehler-Bookmarks erneut einsetzen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1534725672469" TEXT="turnError_into_InfoMsg">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1534725585810" TEXT="Markup reduzieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1534725593152" TEXT="Bookmarks entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1534725302600" TEXT="triggerFlash">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1534725298760" TEXT="farbigen Rahmen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1534725377925" TEXT="vorl&#xe4;ufig feste Farbe">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1534725297672" TEXT="timeout setzen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1534722142986" TEXT="revealYourself">
+<linktarget COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722040354" ID="ID_633013" MODIFIED="1534722061920" TEXT="eigennen show/hide-Status erkennen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1534722072607" TEXT="braucht Parent-Link">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1534722090132" TEXT="parent.reveal(this)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1522936276561" TEXT="Bang! -Button">
 <icon BUILTIN="button_ok"/>
@@ -1832,36 +1902,307 @@
 </node>
 </node>
 <node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534525243617" TEXT="View belegen">
-<linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="-4;127;"/>
+<linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1533689142951" TEXT="mit close-signal verdrahten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1534721386800" TEXT="mit close-signal verdrahten">
+<icon BUILTIN="stop-sign"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
+<icon BUILTIN="broken-line"/>
+<node CREATED="1534630165971" ID="ID_783988097" MODIFIED="1534630171687" TEXT="nur Fenster haben signal_delete_event"/>
+<node CREATED="1534630176586" ID="ID_712401559" MODIFIED="1534630190996" TEXT="wird aber per Default auf hide() gemappt"/>
+<node COLOR="#435e98" CREATED="1534634189347" ID="ID_146943890" MODIFIED="1534635809110">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      GTK-Konzepte: &quot;<b>Schlie&#223;en</b>&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#6f7ab9" DESTINATION="ID_1900017952" ENDARROW="Default" ENDINCLINATION="-2264;0;" ID="Arrow_ID_1220603071" STARTARROW="None" STARTINCLINATION="-6278;0;"/>
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node CREATED="1534630195728" ID="ID_1711320497" MODIFIED="1534630202867" TEXT="was brauche ich?">
+<node CREATED="1534630216909" ID="ID_1211516480" MODIFIED="1534630237569">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      wenn Log-Anzeige <i>verworfen</i>&#160;wird
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="forward"/>
+<node CREATED="1534630507190" ID="ID_1710219381" MODIFIED="1534630516168" TEXT="aus dem umschlie&#xdf;enden Container entfernt"/>
+<node CREATED="1534630517045" ID="ID_435686246" MODIFIED="1534630526167" TEXT="und dann wirklich zerst&#xf6;rt, nicht nur verborgen"/>
+<node CREATED="1534630526995" ID="ID_626097783" MODIFIED="1534630535742" TEXT="zugeh&#xf6;riges Model wird ebenfalls zerst&#xf6;rt"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534630538178" ID="ID_706923205" MODIFIED="1534721356240" TEXT="wenn Docking-Panel geschlossen wird">
+<icon BUILTIN="messagebox_warning"/>
+<node COLOR="#338800" CREATED="1534630581532" ID="ID_333724082" MODIFIED="1534721330781" TEXT="herausfinden ob und was passiert">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1534636016460" ID="ID_16558042" MODIFIED="1534636022815" TEXT="vom Code her nicht klar"/>
+<node CREATED="1534636023499" ID="ID_1133271303" MODIFIED="1534636030757" TEXT="k&#xf6;nnte kaputt sein"/>
+<node CREATED="1534636033826" ID="ID_1327331647" MODIFIED="1534636037572" TEXT="theoretisch....">
+<node CREATED="1534636038545" ID="ID_20267823" MODIFIED="1534636076288" TEXT="sollte das Panel aus seinem Container genommen werden"/>
+<node CREATED="1534636077660" ID="ID_1153072337" MODIFIED="1534636097661" TEXT="und der Container (=DockItem) sollte daraufhin dieses Kind (=Panel) verbergen"/>
+<node CREATED="1534636098937" ID="ID_684477198" MODIFIED="1534636108035" TEXT="jedenfalls w&#xe4;re das die normale GTK-Logik"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534636118486" ID="ID_1396783317" MODIFIED="1534636136704" TEXT="TODO: empirisch herausfinden">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
+<node CREATED="1534630593946" ID="ID_332877746" MODIFIED="1534630600819" TEXT="Einstiegspunkt: PanelManager">
+<icon BUILTIN="idea"/>
+<node CREATED="1534630686134" ID="ID_1763470642" MODIFIED="1534630687561" TEXT="PanelManager::removePanel"/>
+<node CREATED="1534630698524" ID="ID_170868004" MODIFIED="1534630699432" TEXT="delete panel;"/>
+<node CREATED="1534630922134" ID="ID_1602014175" MODIFIED="1534630925289" TEXT="komisch...">
+<node CREATED="1534630926326" ID="ID_1520511750" MODIFIED="1534630932161" TEXT="Panel erbt von VBox"/>
+<node CREATED="1534630932821" ID="ID_669390115" MODIFIED="1534630940399" TEXT="h&#xe4;lt nur eine Referenz auf das DockItem"/>
+<node CREATED="1534631014841" ID="ID_997149684" MODIFIED="1534631085070" TEXT="dieser Code ist gegenw&#xe4;rtig auskommentiert">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      er ist n&#228;mlich auch aufgerufen worden, nachdem die GTK-Loop bereits beendet war.
+    </p>
+    <p>
+      Dieser Code hat fr&#252;her C-m&#228;&#223;ig direkt die GObjects manipuliert (Anfangs hatten wir nur GDL, nicht GDLmm)
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1534630941563" ID="ID_701586360" MODIFIED="1534631013681" TEXT="Code im dtor entfernt das Panel aus dem DockItem">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Erl&#228;uterung: DockItem ist ein 1-elementiger GTK-Container,
+    </p>
+    <p>
+      der sichtbare Inhalt liegt in diesem Container. Bei uns ist das das Panel.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1534632167588" ID="ID_482488418" MODIFIED="1534632171240" TEXT="gtk_container_remove">
+<node CREATED="1534632172396" ID="ID_1415075917" MODIFIED="1534632183158" TEXT="&#xe4;ndert nichts am Sichtbarkeits-Status"/>
+<node CREATED="1534632183818" ID="ID_1537037393" MODIFIED="1534632194005" TEXT="aber erniedrigt den Refcount"/>
+<node CREATED="1534632290500" ID="ID_1165360257" MODIFIED="1534632304077" TEXT="emittiert das signal_remove auf dem Container"/>
+<node CREATED="1534632195136" ID="ID_1692600031" MODIFIED="1534632241155" TEXT="Intersssanter Kommentar: man sollte direkt zerst&#xf6;ren">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Removes @widget from @container. @widget must be inside @container.
+    </p>
+    <p>
+      Note that @container will own a reference to @widget, and that this
+    </p>
+    <p>
+      may be the last reference held; so removing a widget from its&#160;&#160;&#160;&#160;&#160;
+    </p>
+    <p>
+      container can destroy that widget. If you want to use @widget&#160;&#160;&#160;&#160;&#160;
+    </p>
+    <p>
+      again, you need to add a reference to it before removing it from&#160;&#160;
+    </p>
+    <p>
+      a container, using g_object_ref(). If you don&#8217;t want to use @widget
+    </p>
+    <p>
+      again it&#8217;s usually more efficient to simply destroy it directly&#160;&#160;&#160;
+    </p>
+    <p>
+      using gtk_widget_destroy() since this will remove it from the&#160;&#160;&#160;&#160;&#160;
+    </p>
+    <p>
+      container and help break any circular reference count cycles.&#160;&#160;&#160;&#160;&#160;
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1534632585779" ID="ID_1472646683" MODIFIED="1534632587041" TEXT="gtk_widget_destroy">
+<node CREATED="1534632595042" ID="ID_818220639" MODIFIED="1534632609779" TEXT="macht praktisch nix"/>
+<node CREATED="1534632593098" ID="ID_1924038071" MODIFIED="1534632594262" TEXT="g_object_run_dispose">
+<node CREATED="1534632642379" ID="ID_1189983629" MODIFIED="1534632650014" TEXT="macht nur Memory-Management"/>
+</node>
+<node CREATED="1534632859518" ID="ID_738187804" MODIFIED="1534632873272" TEXT="aufgerufen von : gtk_container_destroy">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1534636163120" ID="ID_1102539072" MODIFIED="1534721182274" TEXT="explizites Destroy-Signal bauen">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1534636203306" ID="ID_1590219615" MODIFIED="1534636301238" TEXT="wird nicht vom Framework bereitgestellt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das ist das Fazit meiner Untersuchung.
+    </p>
+    <p>
+      &quot;destroy&quot; ist kein relevantes Konzept f&#252;r GTK. Es gibt nur show()/hide().
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Also m&#252;ssen wir <i>explizit</i>
+    </p>
+    <ul>
+      <li>
+        eine Destroy-Signal bauen
+      </li>
+      <li>
+        daf&#252;r sorgen, da&#223; das Infobox-Panel das auch aufruft
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1534636462287" ID="ID_1581893176" MODIFIED="1534721195248" TEXT="eigenes SigC Signal bereitstellen"/>
+<node CREATED="1534636486123" ID="ID_1855036791" MODIFIED="1534721209774" TEXT="w&#xfc;rde vom EventLog-dtor aufgerufen"/>
+<node CREATED="1534721236063" ID="ID_1398832202" MODIFIED="1534721247336" TEXT="das w&#xe4;re eine private Konvention">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node COLOR="#338800" CREATED="1534721249117" ID="ID_997317939" MODIFIED="1534721572753" TEXT="....dann ist WLink genauso gut">
+<arrowlink COLOR="#69b2a9" DESTINATION="ID_1471234946" ENDARROW="Default" ENDINCLINATION="37;-44;" ID="Arrow_ID_1612034198" STARTARROW="None" STARTINCLINATION="-209;0;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721400696" ID="ID_1935193271" MODIFIED="1534721415696" TEXT="jeder Zugriff pr&#xfc;ft WLink">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1534721417590" ID="ID_1471234946" MODIFIED="1534721567118" STYLE="fork" TEXT="das er&#xfc;brigt Verwalten eines eigenen Signales">
+<linktarget COLOR="#69b2a9" DESTINATION="ID_1471234946" ENDARROW="Default" ENDINCLINATION="37;-44;" ID="Arrow_ID_1612034198" SOURCE="ID_997317939" STARTARROW="None" STARTINCLINATION="-209;0;"/>
+</node>
+<node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und nicht blo&#223; inaktiv schalten.
+    </p>
+  </body>
+</html>
+</richcontent>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1534721870151" TEXT="verifizieren">
+<arrowlink DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1534721526433" TEXT="dokumentieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1534721539161" TEXT="sofern es im Panel lebt, passiert das automatisch">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1534636350863" TEXT="ebenfalls explizit zu bauen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534636352398" ID="ID_435790811" MODIFIED="1534636448600" TEXT="&#xe4;hnliche Lage wie bei Destroy">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      GTK bietet nur Anzeigen von top-down:
+    </p>
+    <ul>
+      <li>
+        show_all() auf Containern zeigt rekursiv alle Kinder
+      </li>
+      <li>
+        show() zeigt nur ein bestimmtes Widget
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1534722142986" TEXT="reveal / revealYourself">
+<arrowlink COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" STARTARROW="None" STARTINCLINATION="859;27;"/>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1534636392354" TEXT="k&#xf6;nnte Lumiera-Framework werden">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node CREATED="1534721937152" ID="ID_1396835945" MODIFIED="1534721944841" TEXT="macht aber nicht der Controller">
+<icon BUILTIN="yes"/>
+<node CREATED="1534721946351" ID="ID_1570295012" MODIFIED="1534721954170" TEXT="typisches OO-Design"/>
+<node CREATED="1534721955070" ID="ID_1390682663" MODIFIED="1534722916337" TEXT="der Controller sagt nur &quot;revealYourself&quot;">
+<linktarget COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" SOURCE="ID_558411855" STARTARROW="None" STARTINCLINATION="109;16;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1534451630033" TEXT="status-Flag">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1534722574441" ID="ID_558411855" MODIFIED="1534722916336" TEXT="delegiert an Widget">
+<arrowlink COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" STARTARROW="None" STARTINCLINATION="109;16;"/>
+<icon BUILTIN="stop-sign"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722791268" ID="ID_1074988560" MODIFIED="1534722909109" TEXT="Error-State">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1534722910293" TEXT="sichtbar" VSHIFT="-18">
+<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1534119985027" TEXT="Controller-Interface">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534120180110" TEXT="doReset()">
-<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1534725765116" TEXT="Controller-Interface">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534725759893" TEXT="doReset()">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1534120202934" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1534120180109" TEXT="doExpand(yes)">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1534725759894" TEXT="doExpand(yes)">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1534120202934" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1534120180109" TEXT="doRevealYourself()">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1534725759894" TEXT="doRevealYourself()">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1534120253931">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -1878,20 +2219,20 @@
 </html></richcontent>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534120180108" TEXT="doMsg(text)">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534725759894" TEXT="doMsg(text)">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1534120202934" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1534120180107" TEXT="doClearMsg()">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1534725759894" TEXT="doClearMsg()">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150463" ID="ID_1378278687" MODIFIED="1534120202934" TEXT="&quot;remove all mere information messages&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1534120180106" TEXT="doErr(text)">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1534725759893" TEXT="doErr(text)">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150463" ID="ID_764543121" MODIFIED="1534120282524">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -1917,14 +2258,14 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1534120180106" TEXT="doClearErr()">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1534725759893" TEXT="doClearErr()">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150465" ID="ID_1858186015" MODIFIED="1534120202932" TEXT="&quot;clear error state. If widget exists, turn all error entries into mere information entries&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1534120180105" TEXT="doFlash()">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1534725759893" TEXT="doFlash()">
+<icon BUILTIN="pencil"/>
 <node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1534120315751">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -1957,6 +2298,23 @@
 <node CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1533689254514" TEXT="triggert Dummy-Command"/>
 <node CREATED="1533689255174" ID="ID_821013695" MODIFIED="1533689263657" TEXT="dieses ruft die Notification_Facade auf"/>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1534721762112" TEXT="verifizieren">
+<icon BUILTIN="full-6"/>
+<node CREATED="1534721764680" ID="ID_237796687" MODIFIED="1534721771410" TEXT="Belegen der View"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1534721838886" TEXT="Verbinden mit bestehendem InfoboxPanel">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721811969" ID="ID_1320259895" MODIFIED="1534721838431" TEXT="auch in einerm anderen Fenster">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721785596" ID="ID_1517054985" MODIFIED="1534721837983" TEXT="Erzeugen eines neuen InfoboxPanels">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721819264" ID="ID_1360416196" MODIFIED="1534721870151" TEXT="Panel durch Ersetzung zerst&#xf6;ren">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" SOURCE="ID_1984401497" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -3271,8 +3629,7 @@
       Name: <b>WLink</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node COLOR="#338800" CREATED="1534336127895" HGAP="21" ID="ID_352867763" MODIFIED="1534436566889" TEXT="WLink_test" VSHIFT="9">
@@ -3401,8 +3758,8 @@
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504191345606" ID="ID_1249897876" MODIFIED="1534511409141" TEXT="#1026 cleanup PanelManager">
-<linktarget COLOR="#e1a169" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="-636;0;" ID="Arrow_ID_446871395" SOURCE="ID_125942292" STARTARROW="None" STARTINCLINATION="-311;562;"/>
 <linktarget COLOR="#ce6b5f" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="1299;0;" ID="Arrow_ID_1635700276" SOURCE="ID_1335931102" STARTARROW="Default" STARTINCLINATION="-1412;-1014;"/>
+<linktarget COLOR="#e1a169" DESTINATION="ID_1249897876" ENDARROW="Default" ENDINCLINATION="-636;0;" ID="Arrow_ID_446871395" SOURCE="ID_125942292" STARTARROW="None" STARTINCLINATION="-311;562;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193029907" ID="ID_1020871440" MODIFIED="1518487921060" TEXT="#1104 how to instruct actions through panels">
 <linktarget COLOR="#806893" DESTINATION="ID_1020871440" ENDARROW="Default" ENDINCLINATION="-3;460;" ID="Arrow_ID_412107208" SOURCE="ID_1943521361" STARTARROW="Default" STARTINCLINATION="-618;-18;"/>
@@ -14531,8 +14888,7 @@
       wenn es schon wirkliche und funktionierende Widgets im System gibt.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 </node>
@@ -14557,8 +14913,7 @@
       ...bisher erzeugt die lookup-Operation automatisch
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1534520304493" ID="ID_1795676672" MODIFIED="1534522378245" TEXT="wo erzeugen?">
@@ -33377,7 +33732,101 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
-<node CREATED="1477523681978" HGAP="23" ID="ID_400257229" MODIFIED="1518487921099" TEXT="Richtlinien" VSHIFT="-21">
+<node COLOR="#435e98" CREATED="1534634232557" HGAP="31" ID="ID_1467351006" MODIFIED="1534635461322" TEXT="Konzepte" VSHIFT="-22">
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="info"/>
+<node CREATED="1534635219848" ID="ID_1769333890" MODIFIED="1534635235608" TEXT="show / hide">
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<node CREATED="1534635236910" ID="ID_1635567005" MODIFIED="1534635253280" TEXT="das zentrale Konzept in GTK">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1534635271809" ID="ID_545450309" MODIFIED="1534635282636" TEXT="GTK == Event-Framework">
+<node CREATED="1534635363429" ID="ID_1102578851" MODIFIED="1534635379942" TEXT="GTK interessiert sich nur indirekt f&#xfc;r den Lebenszyklus"/>
+<node CREATED="1534635380794" ID="ID_121089426" MODIFIED="1534635399627" TEXT="...insofern Callbacks nicht in toten Speicher zeigen d&#xfc;rfen"/>
+<node CREATED="1534635400479" ID="ID_1808051725" MODIFIED="1534635411242" TEXT="was aber sonst mit den &quot;Objekten&quot; passiert, ist GTK egal"/>
+<node CREATED="1534635412070" ID="ID_1070513169" MODIFIED="1534635425784" TEXT="am Ende gehen alle Refcounts ohnehin auf Null"/>
+<node CREATED="1534635426684" ID="ID_995597401" MODIFIED="1534635433703" TEXT="und wenn nicht, drof jeschissen"/>
+</node>
+<node CREATED="1534635260267" ID="ID_287252267" MODIFIED="1534635295432" TEXT="was verborgen ist, bekommt keine Events">
+<icon BUILTIN="back"/>
+</node>
+<node CREATED="1534635309500" ID="ID_717136118" MODIFIED="1534635316303" TEXT="Container">
+<node CREATED="1534635317179" ID="ID_921739364" MODIFIED="1534635322366" TEXT="verbergen rekursiv"/>
+<node CREATED="1534635322938" ID="ID_1532459469" MODIFIED="1534635328573" TEXT="show_all zeigt rekursiv an"/>
+</node>
+</node>
+<node CREATED="1534634259498" ID="ID_1900017952" MODIFIED="1534635809110" TEXT="&quot;Schlie&#xdf;en&quot;">
+<linktarget COLOR="#6f7ab9" DESTINATION="ID_1900017952" ENDARROW="Default" ENDINCLINATION="-2264;0;" ID="Arrow_ID_1220603071" SOURCE="ID_146943890" STARTARROW="None" STARTINCLINATION="-6278;0;"/>
+<node CREATED="1534634292477" ID="ID_1867321008" MODIFIED="1534634310281">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das Konzept <b>gibts nicht</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1534634334767" ID="ID_1445477599" MODIFIED="1534634373419">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      GTK-Widget: <b>hide</b>()
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1534634379762" ID="ID_83493459" MODIFIED="1534634386116" TEXT="es wird unmapped">
+<node CREATED="1534634403766" ID="ID_1515267212" MODIFIED="1534634426295" TEXT="keine Screen-Space-Zuordnung mehr"/>
+<node CREATED="1534634426883" ID="ID_586184038" MODIFIED="1534634431582" TEXT="es wird nicht mehr gezeichnet"/>
+</node>
+<node CREATED="1534634386704" ID="ID_131269615" MODIFIED="1534634394739" TEXT="es wird aus dem Event-Processing herausgenommen"/>
+</node>
+<node CREATED="1534634453703" ID="ID_289385917" MODIFIED="1534634468974">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      GObject: <b>unref</b>()
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1534634472325" ID="ID_180385322" MODIFIED="1534634490430" TEXT="Glib hat ein refcounting Memory-Management"/>
+<node CREATED="1534634502817" ID="ID_1557422702" MODIFIED="1534634512131" TEXT="das betrifft nur das Memory-Managment"/>
+<node CREATED="1534634512864" ID="ID_952501435" MODIFIED="1534634524762" TEXT="jeder Client ist verantwortlich, seine Referenzen freizugeben"/>
+</node>
+<node CREATED="1534635126901" ID="ID_868113400" MODIFIED="1534635131976" TEXT="gtk_widget_destroy">
+<node CREATED="1534635139155" ID="ID_1958818389" MODIFIED="1534635155125" TEXT="l&#xf6;st ein DESTROY-Signal aus"/>
+<node CREATED="1534635156137" ID="ID_1010364630" MODIFIED="1534635215323" TEXT="macht sonst nur Refcount-Zeugs"/>
+<node CREATED="1534635167295" ID="ID_418523562" MODIFIED="1534635211504" TEXT="keinerlei Auswirkung auf die Sichtbarkeit">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...in der Praxis aber entsteht indirekt eine Auswirkung,
+    </p>
+    <p>
+      insofern Container auf das DESTROY-Signal ihrer Kinder reagieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+<node CREATED="1477523681978" HGAP="14" ID="ID_400257229" MODIFIED="1534634566726" TEXT="Richtlinien" VSHIFT="11">
 <node CREATED="1477523701544" ID="ID_1802991794" MODIFIED="1518487921099" TEXT="empfohlen">
 <node CREATED="1477523709342" ID="ID_781118281" MODIFIED="1518487921099" TEXT="Box">
 <node CREATED="1477524273619" ID="ID_216152004" MODIFIED="1518487921099" TEXT="pack_start() / pack_end()"/>
@@ -33415,6 +33864,7 @@
 <arrowlink COLOR="#627292" DESTINATION="ID_185528211" ENDARROW="Default" ENDINCLINATION="58;-164;" ID="Arrow_ID_390519319" STARTARROW="None" STARTINCLINATION="135;0;"/>
 </node>
 </node>
+</node>
 <node CREATED="1495221220040" HGAP="43" ID="ID_782313223" MODIFIED="1533306068667" TEXT="Framework" VSHIFT="-20">
 <linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-981;-106;" ID="Arrow_ID_1912776282" SOURCE="ID_1636078216" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
 <linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-1088;-39;" ID="Arrow_ID_234165792" SOURCE="ID_433225506" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
@@ -34536,8 +34986,7 @@
       The grip is implemented as a GdlDockItemGrip
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1534512072391" ID="ID_1008938926" MODIFIED="1534512077442" TEXT="gdl::DockPlaceholder">

From 65bbc45e025f6ee42d969cf17367260683f2822a Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 20 Aug 2018 03:55:06 +0200
Subject: [PATCH 031/178] NotificationDisplay: care for lifecycle issues and
 expansion state persistence

---
 src/gui/ctrl/nexus.hpp               |  2 +-
 src/gui/ctrl/notification-hub.hpp    |  5 +++--
 src/gui/ctrl/state-recorder.hpp      |  8 +++++++
 src/gui/widget/error-log-display.hpp | 23 ++++++++++++++++++-
 wiki/thinkPad.ichthyo.mm             | 33 +++++++++++++++++++++-------
 5 files changed, 59 insertions(+), 12 deletions(-)

diff --git a/src/gui/ctrl/nexus.hpp b/src/gui/ctrl/nexus.hpp
index 3d6a93a9f..eab41a8ea 100644
--- a/src/gui/ctrl/nexus.hpp
+++ b/src/gui/ctrl/nexus.hpp
@@ -69,7 +69,7 @@ namespace ctrl{
    * 
    * Thus, the "uplink", which is in fact the CoreService, is left to handle
    * - the *`act`* messages (command invocation)
-   * - the *`mark`* messages (upstream state change notification)
+   * - the *`note`* messages (upstream state change notification)
    * 
    * @todo write type comment
    */
diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 5b3a5b685..7726bbe18 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -121,8 +121,9 @@ namespace ctrl {
       doExpand (bool yes)  override
         {
           if (widget_ or yes)
-             getWidget().expand (yes);
-          return false; // expand state not sticky
+             if (getWidget().expand (yes))
+               uiBus_.note (GenNode("expand", yes));
+          return false; // state persisted if necessary
         }
       
       virtual void
diff --git a/src/gui/ctrl/state-recorder.hpp b/src/gui/ctrl/state-recorder.hpp
index 47d15ee1e..edf89dd44 100644
--- a/src/gui/ctrl/state-recorder.hpp
+++ b/src/gui/ctrl/state-recorder.hpp
@@ -187,6 +187,14 @@ namespace ctrl {
         }
       
     private:
+      /** @remark depending on the response of the notified element,
+       *   this might lead to a reentrant record() call, because the
+       *   element might chose to send a _note_ message immediately,
+       *   to record a state change, since it can not know this _is_
+       *   already the replay of a stored state note. However, this
+       *   reentrant call is harmless, it just updates the existing
+       *   entry with identical content.
+       */
       void
       replayPropertiesOf (Record entry)
         {
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 0e16dab30..383677e44 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -27,6 +27,26 @@
  ** entries can be added with a severity level, causing the widget to scroll
  ** down to the last line of the content buffer.
  ** 
+ ** ## Lifecycle considerations
+ ** 
+ ** The ErrorLogDisplay is typically managed as child of a container widget.
+ ** However, the ctrl::NotificationHub as controller does a lookup and attaches
+ ** to an ErrorLogDisplay found within the InfoBoxPanel, using it as holder for
+ ** information and error messages pushed into the GUI. For that reason, it is
+ ** important really _to destroy_ the ErrorLogDisplay, when it is taken out of
+ ** service. Since ErrorLogDisplay inherits from `sigc::tangible`, it is
+ ** automatically detached from the WLink implementing this cross-attachment,
+ ** when actually the dtor is called.
+ ** @note this is a special convention; usually it is sufficient just to hide()
+ **       a GTK widget, because it is then left alone by the event handling and
+ **       automatically cleaned up at shutdown. Moreover, if you ` remove()` a
+ **       widget from a container, the container no longer manages the widget,
+ **       so you are responsible to take ownership in such situations. And,
+ **       as said, in case of the ErrorLogDisplay, you should `delete` it.
+ ** @remark the standard use case is to have the ErrorLogDisplay sitting
+ **       within the InfoBoxPanel. If the latter is destroyed, it destroys
+ **       its children and all works as expected without much ado.
+ ** 
  ** @todo WIP-WIP-WIP as of 9/2017 this is a first draft of a widget to be
  **       used as receiver by the GuiNotificationService.
  ** 
@@ -94,10 +114,11 @@ namespace widget {
           }
         }
       
-      void
+      bool
       expand (bool yes)
         {
           UNIMPLEMENTED ("Maintain expansion state, build a collapsed representation.");
+          return false; //////TODO true if state change happened; this makes the state persistent
         }
       
       void
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7aa9681dc..c06db4fa3 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1888,8 +1888,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1533689301486" TEXT="Empfangs-Logik im NotificationController">
 <icon BUILTIN="full-3"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534119972876" TEXT="Einrichtung">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534730011960" TEXT="Einrichtung">
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534527345585" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -1906,7 +1906,7 @@
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" ID="ID_1077285383" MODIFIED="1534721386800" TEXT="mit close-signal verdrahten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1534728946122" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="stop-sign"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
 <icon BUILTIN="broken-line"/>
@@ -1946,7 +1946,7 @@
 <node CREATED="1534630517045" ID="ID_435686246" MODIFIED="1534630526167" TEXT="und dann wirklich zerst&#xf6;rt, nicht nur verborgen"/>
 <node CREATED="1534630526995" ID="ID_626097783" MODIFIED="1534630535742" TEXT="zugeh&#xf6;riges Model wird ebenfalls zerst&#xf6;rt"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534630538178" ID="ID_706923205" MODIFIED="1534721356240" TEXT="wenn Docking-Panel geschlossen wird">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534630538178" FOLDED="true" ID="ID_706923205" MODIFIED="1534726744532" TEXT="wenn Docking-Panel geschlossen wird">
 <icon BUILTIN="messagebox_warning"/>
 <node COLOR="#338800" CREATED="1534630581532" ID="ID_333724082" MODIFIED="1534721330781" TEXT="herausfinden ob und was passiert">
 <icon BUILTIN="button_ok"/>
@@ -2101,11 +2101,28 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721400696" ID="ID_1935193271" MODIFIED="1534721415696" TEXT="jeder Zugriff pr&#xfc;ft WLink">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721400696" ID="ID_1935193271" MODIFIED="1534729121908" TEXT="jeder Zugriff pr&#xfc;ft WLink">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534721417590" ID="ID_1471234946" MODIFIED="1534721567118" STYLE="fork" TEXT="das er&#xfc;brigt Verwalten eines eigenen Signales">
 <linktarget COLOR="#69b2a9" DESTINATION="ID_1471234946" ENDARROW="Default" ENDINCLINATION="37;-44;" ID="Arrow_ID_1612034198" SOURCE="ID_997317939" STARTARROW="None" STARTINCLINATION="-209;0;"/>
 </node>
+<node COLOR="#338800" CREATED="1534729080597" ID="ID_1547931497" MODIFIED="1534729118672" TEXT="Code durchgesehen: alle Zugriffe sauber">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      entweder sie laufen &#252;ber den Getter,
+    </p>
+    <p>
+      oder sie pr&#252;fen den Zustand und machen nichts, wenn das Widget nicht da ist
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
 <node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -2122,8 +2139,8 @@
 <arrowlink DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1534721526433" TEXT="dokumentieren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1534729998070" TEXT="dokumentieren">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1534721539161" TEXT="sofern es im Panel lebt, passiert das automatisch">
 <icon BUILTIN="flag-yellow"/>

From a0b80d8a4681c8e04af95ab4ca2d3e1b17f2fc6f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 21 Aug 2018 13:27:39 +0200
Subject: [PATCH 032/178] NotificationDisplay: preliminary plans regarding
 information display in the UI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

...while traveling with the train over the Schwäbische Alb to Karlsruhe;
on my way to FrOSCon 2018
---
 wiki/thinkPad.ichthyo.mm | 109 ++++++++++++++++++++++++++++-----------
 1 file changed, 79 insertions(+), 30 deletions(-)

diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c06db4fa3..729416187 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1605,7 +1605,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1533608441263" TEXT="mi&#xdf;brauche InfoBox">
+<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1534850802878" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <icon BUILTIN="idea"/>
 <node COLOR="#338800" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1534527069860" TEXT="neues Dock(Panel)">
@@ -1696,6 +1696,12 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850824341" ID="ID_1234148559" MODIFIED="1534850840618" TEXT="vorl&#xe4;ufiges Grid-Layout">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850841673" ID="ID_375492094" MODIFIED="1534850857117" TEXT="ParentView-Interface">
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534527104730" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
 <linktarget COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" SOURCE="ID_812129962" STARTARROW="None" STARTINCLINATION="808;0;"/>
 <linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
@@ -1922,8 +1928,7 @@
       GTK-Konzepte: &quot;<b>Schlie&#223;en</b>&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#6f7ab9" DESTINATION="ID_1900017952" ENDARROW="Default" ENDINCLINATION="-2264;0;" ID="Arrow_ID_1220603071" STARTARROW="None" STARTINCLINATION="-6278;0;"/>
 <icon BUILTIN="info"/>
 </node>
@@ -1939,8 +1944,7 @@
       wenn Log-Anzeige <i>verworfen</i>&#160;wird
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="forward"/>
 <node CREATED="1534630507190" ID="ID_1710219381" MODIFIED="1534630516168" TEXT="aus dem umschlie&#xdf;enden Container entfernt"/>
 <node CREATED="1534630517045" ID="ID_435686246" MODIFIED="1534630526167" TEXT="und dann wirklich zerst&#xf6;rt, nicht nur verborgen"/>
@@ -1981,8 +1985,7 @@
       Dieser Code hat fr&#252;her C-m&#228;&#223;ig direkt die GObjects manipuliert (Anfangs hatten wir nur GDL, nicht GDLmm)
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1534630941563" ID="ID_701586360" MODIFIED="1534631013681" TEXT="Code im dtor entfernt das Panel aus dem DockItem">
@@ -1998,8 +2001,7 @@
       der sichtbare Inhalt liegt in diesem Container. Bei uns ist das das Panel.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1534632167588" ID="ID_482488418" MODIFIED="1534632171240" TEXT="gtk_container_remove">
@@ -2040,8 +2042,7 @@
       container and help break any circular reference count cycles.&#160;&#160;&#160;&#160;&#160;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
@@ -2085,8 +2086,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1534636462287" ID="ID_1581893176" MODIFIED="1534721195248" TEXT="eigenes SigC Signal bereitstellen"/>
@@ -2119,8 +2119,7 @@
       oder sie pr&#252;fen den Zustand und machen nichts, wenn das Widget nicht da ist
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
@@ -2133,8 +2132,7 @@
       ...und nicht blo&#223; inaktiv schalten.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1534721870151" TEXT="verifizieren">
 <arrowlink DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
@@ -2169,8 +2167,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1534722142986" TEXT="reveal / revealYourself">
@@ -16584,7 +16581,7 @@
 </node>
 <node CREATED="1504200743610" ID="ID_1973994759" MODIFIED="1518487921083" TEXT="vorl&#xe4;ufig....">
 <node CREATED="1504200750905" ID="ID_1728645080" MODIFIED="1518487921083" TEXT="gibt es noch eine ZombieTimeline"/>
-<node CREATED="1504200758920" ID="ID_19179662" MODIFIED="1518487921083" TEXT="hab ich schon mal eine InfoBox dazugebaut">
+<node CREATED="1504200758920" ID="ID_19179662" MODIFIED="1534850802878" TEXT="hab ich schon mal eine InfoBox dazugebaut">
 <linktarget COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" SOURCE="ID_340215113" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <node CREATED="1504200878312" ID="ID_1934842950" MODIFIED="1518487921083" TEXT="...f&#xfc;r #1099 DemoGuiRoundtrip">
 <richcontent TYPE="NOTE"><html>
@@ -16649,8 +16646,11 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850747192" ID="ID_109802175" MODIFIED="1534850758654" TEXT="vorl&#xe4;ufig per Grid implementieren">
+<icon BUILTIN="flag-yellow"/>
 </node>
-<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1534523149889" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor">
+</node>
+<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1534850514830" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor">
 <arrowlink DESTINATION="ID_1405249171" ENDARROW="Default" ENDINCLINATION="222;-82;" ID="Arrow_ID_1395046288" STARTARROW="None" STARTINCLINATION="644;0;"/>
 </node>
 </node>
@@ -16869,6 +16869,37 @@
 <node CREATED="1477523561930" ID="ID_868197404" MODIFIED="1518487921084" TEXT="pack_start() "/>
 <node CREATED="1477523573184" ID="ID_1063091132" MODIFIED="1518487921084" TEXT="pack_end()"/>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534849790225" ID="ID_326815949" MODIFIED="1534850544930" TEXT="Aufgaben">
+<linktarget COLOR="#a35f7f" DESTINATION="ID_326815949" ENDARROW="Default" ENDINCLINATION="33;189;" ID="Arrow_ID_746548615" SOURCE="ID_1536071305" STARTARROW="None" STARTINCLINATION="246;-229;"/>
+<icon BUILTIN="flag-pink"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850081097" ID="ID_264379011" MODIFIED="1534850134831" TEXT="m&#xf6;gliche Schachtelungen">
+<icon BUILTIN="full-1"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850106454" ID="ID_1465835366" MODIFIED="1534850118272" TEXT="nebeneinander (Grid)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850113247" ID="ID_667518060" MODIFIED="1534850117542" TEXT="Tabs">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850159866" ID="ID_1887039635" MODIFIED="1534850194806" TEXT="Teil-Layout programatisch erzeugen / rekonstruieren">
+<icon BUILTIN="full-2"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850200900" ID="ID_754628121" MODIFIED="1534850227982" TEXT="programmatische Gr&#xf6;&#xdf;en&#xe4;nderung">
+<icon BUILTIN="full-3"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850230072" ID="ID_333353660" MODIFIED="1534850236690" TEXT="size-request">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850238426" ID="ID_1411766694" MODIFIED="1534850245740" TEXT="harte Gr&#xf6;&#xdf;envorgabe">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850256212" ID="ID_761478120" MODIFIED="1534850262109" TEXT="bei mehrfacher Schachtelung">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850278149" ID="ID_348255325" MODIFIED="1534850289615" TEXT="Zusammenspiel mit Persistenz">
+<icon BUILTIN="full-4"/>
+</node>
+</node>
 </node>
 <node CREATED="1487464476801" ID="ID_1621360845" MODIFIED="1518487921084" TEXT="Umbau">
 <node CREATED="1487464480872" ID="ID_830603607" MODIFIED="1518487921084" TEXT="bestehende Strukturen stillegen"/>
@@ -16896,8 +16927,30 @@
 <node CREATED="1504833569692" ID="ID_1708962269" MODIFIED="1518487921084" TEXT="Viewer"/>
 <node CREATED="1504833572687" ID="ID_57378390" MODIFIED="1518487921084" TEXT="(Asset)Bin"/>
 <node CREATED="1504833574246" ID="ID_897436866" MODIFIED="1518487921084" TEXT="Infobox">
-<node CREATED="1534523010591" ID="ID_1405249171" MODIFIED="1534523149890" TEXT="Zentrale Informationsanzeigen">
+<node CREATED="1534523010591" ID="ID_1405249171" MODIFIED="1534850514831" TEXT="Zentrale Informationsanzeigen">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1405249171" ENDARROW="Default" ENDINCLINATION="222;-82;" ID="Arrow_ID_1395046288" SOURCE="ID_335470074" STARTARROW="None" STARTINCLINATION="644;0;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534848989905" ID="ID_1536071305" MODIFIED="1534850563490" TEXT="Anforderungen">
+<arrowlink COLOR="#a35f7f" DESTINATION="ID_326815949" ENDARROW="Default" ENDINCLINATION="33;189;" ID="Arrow_ID_746548615" STARTARROW="None" STARTINCLINATION="246;-229;"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1534849000159" ID="ID_82161143" MODIFIED="1534849056847" TEXT="fest vorgegebener Platz im UI"/>
+<node CREATED="1534849057715" ID="ID_1467109522" MODIFIED="1534849183041" TEXT="stets sichbarer Status-Bereich">
+<node CREATED="1534849188780" ID="ID_1937021840" MODIFIED="1534849195302" TEXT="sehr kompakt / effizient"/>
+<node CREATED="1534849196166" ID="ID_1813708845" MODIFIED="1534849201354" TEXT="enth&#xe4;lt minimale Navi"/>
+</node>
+<node CREATED="1534849205203" ID="ID_1997665939" MODIFIED="1534849349662" TEXT="darunter">
+<node CREATED="1534849381630" ID="ID_1209297989" MODIFIED="1534849412617" TEXT="Paletten-Stacks">
+<node CREATED="1534849546781" ID="ID_657722273" MODIFIED="1534849558486" TEXT="zweidimensionale Anordnung"/>
+<node CREATED="1534849630348" ID="ID_506310851" MODIFIED="1534849644436" TEXT="Fokus in einer Spalte + Zelle"/>
+<node CREATED="1534849646074" ID="ID_1030720361" MODIFIED="1534849660730" TEXT="der Rest wird reduziert (abridged)"/>
+</node>
+<node CREATED="1534849493068" ID="ID_1029182833" MODIFIED="1534849508564" TEXT="kann sich in Pupup vergr&#xf6;&#xdf;ern"/>
+<node CREATED="1534849512730" ID="ID_1444658378" MODIFIED="1534849525530" TEXT="kollabiert bei Fokusverlust"/>
+</node>
+</node>
+<node CREATED="1534850609493" ID="ID_798164713" MODIFIED="1534850613759" TEXT="Belegung">
+<node CREATED="1534850615125" ID="ID_1470557953" MODIFIED="1534850645677" TEXT="eindeutiger View-Name"/>
+<node CREATED="1534850658265" ID="ID_60455430" MODIFIED="1534850685324" TEXT="Tab == Sub-View oder Fach"/>
+</node>
 </node>
 <node CREATED="1534523024189" ID="ID_215944418" MODIFIED="1534523027438" TEXT="Fehlerlog">
 <node CREATED="1534523031493" ID="ID_1146002742" MODIFIED="1534523041375" TEXT="wird bei erstem Bedarf belegt"/>
@@ -33784,8 +33837,7 @@
       das Konzept <b>gibts nicht</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1534634334767" ID="ID_1445477599" MODIFIED="1534634373419">
@@ -33798,8 +33850,7 @@
       GTK-Widget: <b>hide</b>()
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1534634379762" ID="ID_83493459" MODIFIED="1534634386116" TEXT="es wird unmapped">
 <node CREATED="1534634403766" ID="ID_1515267212" MODIFIED="1534634426295" TEXT="keine Screen-Space-Zuordnung mehr"/>
 <node CREATED="1534634426883" ID="ID_586184038" MODIFIED="1534634431582" TEXT="es wird nicht mehr gezeichnet"/>
@@ -33816,8 +33867,7 @@
       GObject: <b>unref</b>()
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1534634472325" ID="ID_180385322" MODIFIED="1534634490430" TEXT="Glib hat ein refcounting Memory-Management"/>
 <node CREATED="1534634502817" ID="ID_1557422702" MODIFIED="1534634512131" TEXT="das betrifft nur das Memory-Managment"/>
 <node CREATED="1534634512864" ID="ID_952501435" MODIFIED="1534634524762" TEXT="jeder Client ist verantwortlich, seine Referenzen freizugeben"/>
@@ -33838,8 +33888,7 @@
       insofern Container auf das DESTROY-Signal ihrer Kinder reagieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>

From bc3eb7f8da17c0de7e4026c46360dab6d1328e35 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 29 Aug 2018 19:25:06 +0200
Subject: [PATCH 033/178] NotificationDisplay: experiment to build a collapsed
 display

basically Gtk::Expander will do the trick.
However, resizing of the enclosing panel is not handled properly,
the log does not expand to take up the available space, as it did
automaticall when just added directly into the frame
---
 src/gui/panel/infobox-panel.cpp      |  9 ++++--
 src/gui/panel/infobox-panel.hpp      |  1 +
 src/gui/widget/error-log-display.hpp |  3 +-
 wiki/thinkPad.ichthyo.mm             | 47 +++++++++++++++++++++++++---
 4 files changed, 52 insertions(+), 8 deletions(-)

diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 7e3d2c0d4..f36ba7382 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -44,6 +44,7 @@ namespace panel{
     , twoParts_{Gtk::ORIENTATION_VERTICAL}
     , buttons_{}
     , frame_{"UI Integration Experiments"}
+    , logExpander_{"Error Log"}
     , theLog_{}
     {
       twoParts_.pack_start(frame_);
@@ -88,9 +89,13 @@ namespace panel{
     if (not theLog_)
       {
         theLog_.reset (new ErrorLogDisplay{});
+        logExpander_.set_expanded (true);
+        logExpander_.add (*theLog_);
         frame_.set_border_width (5);
-        frame_.add (*theLog_);
-        frame_.show_all();    ///////////////TODO necessary?
+        frame_.add (logExpander_);
+//        frame_.add (*theLog_);
+//        frame_.check_resize();
+        frame_.show_all();
       }
     return *theLog_;
   }
diff --git a/src/gui/panel/infobox-panel.hpp b/src/gui/panel/infobox-panel.hpp
index eeaa43df9..e000252a1 100644
--- a/src/gui/panel/infobox-panel.hpp
+++ b/src/gui/panel/infobox-panel.hpp
@@ -68,6 +68,7 @@ namespace panel{
       Gtk::ButtonBox buttons_;
       Gtk::Button button_1_;
       Gtk::Frame frame_;
+      Gtk::Expander logExpander_;
       
       std::unique_ptr<widget::ErrorLogDisplay> theLog_;
       
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 383677e44..44d654cad 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -85,7 +85,7 @@ namespace widget {
         : Gtk::ScrolledWindow()
         , textLog_{}
         {
-          set_size_request (200, 50);
+          set_size_request (200, 80);           // must be > 50 for the scrollbar to work properly 
           set_border_width (10);
           set_shadow_type  (Gtk::SHADOW_NONE);
           
@@ -93,7 +93,6 @@ namespace widget {
           set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_ALWAYS);
           this->add (textLog_);
           textLog_.set_editable (false);
-          
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 729416187..378919733 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1744,8 +1744,46 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1534725415160" TEXT="expand">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1534725407905" TEXT="collapsed-Repr&#xe4;sentation schaffen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1535563380736" TEXT="collapsed-Repr&#xe4;sentation schaffen">
+<icon BUILTIN="pencil"/>
+<node CREATED="1535554610295" ID="ID_1050608842" MODIFIED="1535554619117" TEXT="nur vorl&#xe4;ufige L&#xf6;sung">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1535554620165" ID="ID_1243930693" MODIFIED="1535554624774" TEXT="Gtk::Expander">
+<icon BUILTIN="idea"/>
+<node CREATED="1535557111546" ID="ID_649935976" MODIFIED="1535557120786" TEXT="Label-Text als ctor param"/>
+<node CREATED="1535557122205" ID="ID_1034248466" MODIFIED="1535557176171" TEXT="resize_toplevel (=true by default)">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535563193014" ID="ID_1551506828" MODIFIED="1535563373775" TEXT="Problem: dehnt sich nicht aus">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1535563256725" ID="ID_327777357" MODIFIED="1535563288805" TEXT="scrolled pane belegt nur minimal notwendigen Platz"/>
+<node CREATED="1535563300695" ID="ID_862867674" MODIFIED="1535563311905" TEXT="egal ob initial zugeklappt (=default) oder aufgeklappt"/>
+<node CREATED="1535563317214" ID="ID_201611533" MODIFIED="1535563330839" TEXT="egal in welcher Reihenfolge man es hinzuf&#xfc;gt"/>
+<node CREATED="1535563334050" ID="ID_718726647" MODIFIED="1535563366331" TEXT="dagegen direkt im Frame dehnt sie sich aus"/>
+</node>
+</node>
+<node CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535554936517" TEXT="essentiell: passiert im Parent-Widget">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>...wesentliches Struktur-Element:</p>
+    <p>der Parent-Container ist f&#252;r das expand/collapse zust&#228;ndig</p>
+  </body>
+</html></richcontent>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
@@ -2106,7 +2144,7 @@
 <node CREATED="1534721417590" ID="ID_1471234946" MODIFIED="1534721567118" STYLE="fork" TEXT="das er&#xfc;brigt Verwalten eines eigenen Signales">
 <linktarget COLOR="#69b2a9" DESTINATION="ID_1471234946" ENDARROW="Default" ENDINCLINATION="37;-44;" ID="Arrow_ID_1612034198" SOURCE="ID_997317939" STARTARROW="None" STARTINCLINATION="-209;0;"/>
 </node>
-<node COLOR="#338800" CREATED="1534729080597" ID="ID_1547931497" MODIFIED="1534729118672" TEXT="Code durchgesehen: alle Zugriffe sauber">
+<node COLOR="#338800" CREATED="1534729080597" ID="ID_1547931497" MODIFIED="1535556768694" TEXT="Code durchgesehen: alle Zugriffe sauber">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2119,7 +2157,8 @@
       oder sie pr&#252;fen den Zustand und machen nichts, wenn das Widget nicht da ist
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">

From 837c6d11ff73eba474ecffa9933f7d72984a077e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 30 Aug 2018 14:58:07 +0200
Subject: [PATCH 034/178] NotificationDisplay: solve the problem with space
 allocation

as it turns out, we need to set the property_expand() on the child widget
within Gtk::Expander explicitly, to cause the child to grab and additional
available screen space (which obviously is what we want in case of a
log display with scrollbars)
---
 src/gui/panel/infobox-panel.cpp      |   4 +-
 src/gui/widget/error-log-display.hpp |   3 +-
 wiki/thinkPad.ichthyo.mm             | 140 +++++++++++++++++++++++++--
 3 files changed, 137 insertions(+), 10 deletions(-)

diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index f36ba7382..a0980b279 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -89,12 +89,10 @@ namespace panel{
     if (not theLog_)
       {
         theLog_.reset (new ErrorLogDisplay{});
-        logExpander_.set_expanded (true);
+        logExpander_.set_expanded (false);
         logExpander_.add (*theLog_);
         frame_.set_border_width (5);
         frame_.add (logExpander_);
-//        frame_.add (*theLog_);
-//        frame_.check_resize();
         frame_.show_all();
       }
     return *theLog_;
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 44d654cad..66c431d0a 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -85,7 +85,8 @@ namespace widget {
         : Gtk::ScrolledWindow()
         , textLog_{}
         {
-          set_size_request (200, 80);           // must be > 50 for the scrollbar to work properly 
+          set_size_request (200, 80);           // must be > 50 for the scrollbar to work properly
+          property_expand() = true;             // always grab any available additional space
           set_border_width (10);
           set_shadow_type  (Gtk::SHADOW_NONE);
           
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 378919733..7304dde48 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1744,12 +1744,13 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1534725415160" TEXT="expand">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1535563380736" TEXT="collapsed-Repr&#xe4;sentation schaffen">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1535631557024" TEXT="collapsed-Repr&#xe4;sentation schaffen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535554610295" ID="ID_1050608842" MODIFIED="1535554619117" TEXT="nur vorl&#xe4;ufige L&#xf6;sung">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1535554620165" ID="ID_1243930693" MODIFIED="1535554624774" TEXT="Gtk::Expander">
+<node COLOR="#435e98" CREATED="1535629564615" ID="ID_1047933726" MODIFIED="1535630651685" TEXT="Gtk::Expander">
+<arrowlink COLOR="#4561ae" DESTINATION="ID_1889724128" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_219393455" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1535557111546" ID="ID_649935976" MODIFIED="1535557120786" TEXT="Label-Text als ctor param"/>
 <node CREATED="1535557122205" ID="ID_1034248466" MODIFIED="1535557176171" TEXT="resize_toplevel (=true by default)">
@@ -1762,17 +1763,20 @@
       ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535563193014" ID="ID_1551506828" MODIFIED="1535563373775" TEXT="Problem: dehnt sich nicht aus">
+<node COLOR="#990000" CREATED="1535563193014" FOLDED="true" ID="ID_1551506828" MODIFIED="1535630371536" TEXT="Problem: dehnt sich nicht aus">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1535563256725" ID="ID_327777357" MODIFIED="1535563288805" TEXT="scrolled pane belegt nur minimal notwendigen Platz"/>
 <node CREATED="1535563300695" ID="ID_862867674" MODIFIED="1535563311905" TEXT="egal ob initial zugeklappt (=default) oder aufgeklappt"/>
 <node CREATED="1535563317214" ID="ID_201611533" MODIFIED="1535563330839" TEXT="egal in welcher Reihenfolge man es hinzuf&#xfc;gt"/>
 <node CREATED="1535563334050" ID="ID_718726647" MODIFIED="1535563366331" TEXT="dagegen direkt im Frame dehnt sie sich aus"/>
 </node>
+<node COLOR="#338800" CREATED="1535629564615" ID="ID_228360739" MODIFIED="1535630629855" TEXT="L&#xf6;sung: Widget::property_expand()">
+<arrowlink COLOR="#6277b2" DESTINATION="ID_860094095" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_761942436" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
+<icon BUILTIN="info"/>
+</node>
 </node>
 <node CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535554936517" TEXT="essentiell: passiert im Parent-Widget">
 <richcontent TYPE="NOTE"><html>
@@ -33931,6 +33935,55 @@
 </node>
 </node>
 </node>
+<node CREATED="1535629105141" ID="ID_387236763" MODIFIED="1535629113123" TEXT="Layout">
+<font NAME="SansSerif" SIZE="14"/>
+<node CREATED="1535629144783" ID="ID_603397185" MODIFIED="1535629149074" TEXT="Phasen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629169164" ID="ID_1301809885" MODIFIED="1535629197406" TEXT="realized">
+<icon BUILTIN="help"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629172787" ID="ID_1666976097" MODIFIED="1535629187584" TEXT="mapped">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1535629240762" ID="ID_860094095" MODIFIED="1535630624000" STYLE="fork" TEXT="Platzierung">
+<edge COLOR="#b4a9e3" STYLE="bezier" WIDTH="thin"/>
+<linktarget COLOR="#6277b2" DESTINATION="ID_860094095" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_761942436" SOURCE="ID_228360739" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
+<font NAME="SansSerif" SIZE="12"/>
+<node CREATED="1535629255856" ID="ID_66989854" MODIFIED="1535630246025" TEXT="size_request">
+<node CREATED="1535629316512" ID="ID_82343540" MODIFIED="1535630246025" TEXT="minimale oder nat&#xfc;rliche Gr&#xf6;&#xdf;e"/>
+<node CREATED="1535629328246" ID="ID_1797361390" MODIFIED="1535630246025" TEXT="Widget wird niemals kleiner gemacht"/>
+</node>
+<node CREATED="1535629360298" ID="ID_872009465" MODIFIED="1535630246025" TEXT="Widget::property_expand()">
+<node CREATED="1535629434440" ID="ID_384811116" MODIFIED="1535630246025" TEXT="bool">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+<node CREATED="1535629385583" ID="ID_147722143" MODIFIED="1535630246025" TEXT="nur wenn es zus&#xe4;tzlichen Platz gibt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...was der Fall sein kann in einer Box oder einem Grid,
+    </p>
+    <p>
+      sofern das Widget mit entsprechendem Modus eingef&#252;gt wurde
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535629439847" ID="ID_1925784750" MODIFIED="1535630246025" TEXT="Widget dehnt sich aus, um verf&#xfc;gbaren Platz einzunehmen">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1535630122372" ID="ID_1833778868" MODIFIED="1535630246025" TEXT="hat keinen Getter / Setter"/>
+<node CREATED="1535629472923" ID="ID_927038398" MODIFIED="1535630246025" TEXT="es gibt vexpand und hexpand">
+<node CREATED="1535630137082" ID="ID_793513557" MODIFIED="1535630246025" TEXT="nur f&#xfc;r eine Richtung"/>
+<node CREATED="1535630147960" ID="ID_701726630" MODIFIED="1535630246025" TEXT="diese haben Getter/Setter"/>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1477523681978" HGAP="14" ID="ID_400257229" MODIFIED="1534634566726" TEXT="Richtlinien" VSHIFT="11">
 <node CREATED="1477523701544" ID="ID_1802991794" MODIFIED="1518487921099" TEXT="empfohlen">
 <node CREATED="1477523709342" ID="ID_781118281" MODIFIED="1518487921099" TEXT="Box">
@@ -34567,6 +34620,81 @@
 <node CREATED="1477785856731" ID="ID_63204089" MODIFIED="1518487921100" TEXT="R&#xfc;ckgabewert: true == fertig behandelt"/>
 </node>
 <node CREATED="1504215708147" ID="ID_975007807" MODIFIED="1518487921100" TEXT="Widget">
+<node CREATED="1535630469053" ID="ID_608304313" MODIFIED="1535630477518" TEXT="konkret...">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<node CREATED="1535630478836" ID="ID_51688888" MODIFIED="1535630481352" TEXT="Container">
+<node CREATED="1535629240762" ID="ID_1889724128" MODIFIED="1535631527979" STYLE="fork">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Gtk::<b>Expander</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<edge COLOR="#b4a9e3" STYLE="bezier" WIDTH="thin"/>
+<linktarget COLOR="#4561ae" DESTINATION="ID_1889724128" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_219393455" SOURCE="ID_1047933726" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
+<font NAME="SansSerif" SIZE="12"/>
+<node CREATED="1535630679569" ID="ID_1488556262" MODIFIED="1535630685068" TEXT="ein Kind-Widget"/>
+<node CREATED="1535630685712" ID="ID_848335172" MODIFIED="1535630699099" TEXT="ein/ausklapp-Handle">
+<node CREATED="1535630699999" ID="ID_895008056" MODIFIED="1535630702610" TEXT="immer sichtbar"/>
+<node CREATED="1535630703150" ID="ID_1252755884" MODIFIED="1535630710185" TEXT="animierter Pfeil-Button"/>
+<node CREATED="1535630710781" ID="ID_194514515" MODIFIED="1535630724687" TEXT="Label-Text als ctor-Param"/>
+</node>
+<node CREATED="1535630745440" ID="ID_1732954181" MODIFIED="1535630748668" TEXT="Verhalten">
+<node CREATED="1535557122205" ID="ID_523553375" MODIFIED="1535631130732" TEXT="resize_toplevel (=true by default)">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1535631341839" TEXT="expanded (=false by default)">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ob eingeklappt oder ausgeklappt
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535631368701" ID="ID_1441730618" MODIFIED="1535631388301" TEXT="platziert Kind-Widget as-is">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1535631390194" ID="ID_356344952" MODIFIED="1535631402732" TEXT="in dessen nat&#xfc;rlicher Gr&#xf6;&#xdf;e"/>
+<node CREATED="1535631403576" ID="ID_518089172" MODIFIED="1535631474193" TEXT="verh&#xe4;lt sich anders als Frame">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ein Frame setzt beim Kind property_expand() = true,
+    </p>
+    <p>
+      was dazu f&#252;hrt, da&#223; das Kind stets allen verf&#252;gbaren Platz nimmt
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1477526858307" ID="ID_676269117" MODIFIED="1518487921100" TEXT="custom widget">
 <node COLOR="#ca1b00" CREATED="1477526864162" ID="ID_1385929770" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1518487921100" TEXT="Beispiel">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1385929770" ENDARROW="Default" ENDINCLINATION="1055;0;" ID="Arrow_ID_1314305180" SOURCE="ID_426069181" STARTARROW="None" STARTINCLINATION="1055;0;"/>

From 17bcdd952a83388f2a449516c99f12ae6ad34ea6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 30 Aug 2018 19:54:40 +0200
Subject: [PATCH 035/178] UiElement: design of helper abstractions (#1162)

to strive at a generic implementation for
- expanding/collapsing a widget
- revealing a widget

which obviously somehow involes storing a closure
---
 wiki/renderengine.html   |  27 +++-
 wiki/thinkPad.ichthyo.mm | 310 +++++++++++++++++++++++++++++++++++++--
 2 files changed, 321 insertions(+), 16 deletions(-)

diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 6394605e7..92b89d1d0 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2664,7 +2664,7 @@ Typically, when starting the draw operation, we retrieve our //allocation.// Thi
 Thus, if we want to use absolute canvas coordinates for our drawing, we need to adjust the cairo context prior to any drawing operations: we translate it in the opposite direction of the values retrieved from the scrollbar {{{Gtk::Adjustment}}}s. This causes the //user coordinates// to coincede with the absolute canvas coordinates.
 </pre>
 </div>
-<div title="GtkLayoutWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201610141819" modified="201611012211" tags="GuiPattern impl" changecount="4">
+<div title="GtkLayoutWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201610141819" modified="201808301543" tags="GuiPattern impl" changecount="6">
 <pre>//This is the canvas widget of ~GTK-3//
 It allows not only custom drawing, but also to embed other widgets at defined coordinates.
 
@@ -2681,6 +2681,9 @@ we need a test setup for this investigation.
 * easy to launch
 * don't waste much time, it is disposable
 * realistic: shall reflect the situation in our actual UI
+As starting point, {{red{in winter 2016/17}}} the old (broken) timeline panel was moved aside and a new panel was attached for GTK experiments. These basically confirmed the envisioned approach; it is possible to place widgets freely onto the canvas; they are drawn in insert order, which allows for overlapped widgets (and mouse events are dispatched properly, as you'd expect). Moreover, it is also possible to draw directly onto the canvas, by overriding the {{{on_draw()}}}-function. However, some (rather trivial) adjustments need to be done to get a virtual canvas, which moves along with the placed widgets. That is, GtkLayoutWidget handles scrolling of embedded widgets automatically, but you need to adjust the Cairo drawing context manually to move along. The aforementioned experimental code shows how.
+
+After that initial experiments, my focus shifted to the still unsatisfactory top-level UI structure, and I am working towards an initial integration with Proc-Layer since then.
 </pre>
 </div>
 <div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201708311414" tags="GuiPattern design draft" changecount="25">
@@ -3238,7 +3241,7 @@ More specifically, the integration is based on ''messaging''. To start with, the
 ----
 In a preliminary attempt to establish an integration between the GUI and the lower layers, in 1/2009 we created an PlayerDummy, which &quot;pulls&quot; dummy frames from the (not yet existing) engine and displays them within an XV viewer widget. This highlighted the problems we're about to encounter and made us think about the more radically decoupled approach we followed thereafter...</pre>
 </div>
-<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201702190021" tags="GuiIntegration design draft" changecount="13">
+<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808301754" tags="GuiIntegration design draft" changecount="22">
 <pre>Building a layered architecture is a challenge, since the lower layer //really// needs to be self-contained, while prepared for usage by the higher layer.
 A major fraction of all desktop applications is written in a way where operational logic is built around the invocation from UI events -- what should be a shell turns into a backbone. One possible way to escape from this common anti pattern is to introduce a mediating entity, to translate between two partially incompatible demands and concerns: Sure, the &quot;tangible stuff&quot; is what matters, but you can not build any significant piece of technology if all you want is to &quot;serve&quot; the user.
 
@@ -3250,11 +3253,25 @@ The GUI model is largely comprised of immutable ID elements, which can be treate
 
 !{{red{WARNING 2/2017}}} more questionable than ever
 The whole Idea to have a &quot;UI model&quot; appears more questionable than ever. It leads to tight coupling with the session and a lot of thread synchronisation headaches, without any clear benefit -- beyond just being the obvious no-brainer solution. During the last months, step by step, several presentation related structures emerged, which //indeed are structured to parallel the outline of the session.// But those structures are widgets and controllers, and it might well be that we do not need a model, beyond the data already present within the widget implementation. Rather it seems we'll get a nested structure of //presenters,// which are linked to the session with the help of the UI-Bus and the [[diff framework|TreeDiffModel]].
+* {{red{as of 8/2018}}}, matters on a large scale converge towards a structure //without a classical UI model.// Seemingly we can do without...
+* there is a working demonstration in {{{BusTerm_test}}}, which pushes mutation diffs against a mock UI-Element. The immediate response to receiving such a diff notification via the UI-Bus has now been coded; it incurs invoking a passed callback (functor), which performs within the originating context, but within the ~UI-Thread, and produces the actual diff //on-demand.// (&quot;pull principle&quot;)
 
 !synchronisation guarantees
 We acknowledge that the gui model is typically used from within the GUI event dispatch thread. This is //not// the thread where any session state is mutated. Thus it is the responsibility of this proxying model within the GUI to ensure that the retrieved structure is a coherent snapshot of the session state. Especially the {{{gui::model::SessionFacade}}} ensures that there was a read barrier between the state retrieval and any preceding mutation command. Actually, this is implemented down in Proc-Layer, with the help of the ProcDispatcher.
 
-The forwarding of model changes to the GUI widgets is another concern, since notifications from session mutations arrive asynchronous after each [[Builder]] run. In this case, we send a notification to the widgets registered as listeners, but wait for //them// to call back and fetch the [[diffed state|TreeDiffModel]]. This callback will be scheduled by the  widgets to perform in the GUI event  thread.
+The forwarding of model changes to the GUI widgets is another concern, since notifications from session mutations arrive asynchronous after each [[Builder]] run. In this case, we send a notification to the widgets registered as listeners, but wait for //them// to call back and fetch the [[diffed state|TreeDiffModel]]. The notification will be dispatched into the GUI event thread (by the {{{GuiNotification}}} façade), which implies that also the callback embedded within the notification will be invoked by the  widgets to perform within the GUI  thread.
+
+!generic model tree building blocks
+According {{red{to the current plan (2018)}}}, the GuiModel will not be a dedicated and isolated data structure -- rather it will be interwoven with the actual structure of the widgets and controllers. Some controllers and also some widgets additionally implement the {{{gui::model::Tangible}}}-interface and thus act as &quot;tangible&quot; UI-Element, where each such &quot;tangible element&quot; directly corresponds to a component within the session model. The interface UI-Element requires such elements to provide an attachment point to receive mutations in the form of diff messages, while it remains a local implementation detail within each such element //how actually to respond and reflect// the changes indicated by the diff message. Typically the adding of child elements will result in creation of several GTK widgets, some of which are in turn also again UI-Element implementations, and only the latter count conceptually as &quot;children&quot;.
+
+While most actual details are abstracted away by this approach, it can be expected that the handling of typical diff changes is somewhat similar in most actual widgets. For this reason we provide a selection of generic adapters and building blocks to simplify the assembly of actual widget implementations.
+
+!!!expanding and collapsing
+Several UI elements offer the ability to be collapsed into a minimal representation to save screen real estate. The UI-Element protocol defines this to happen either by invoking a dedicated signal slot on the element, or by sending an appropriate message over the UI-Bus. The actual implementation is quite simple, but unfortunately requires knowledge regarding the specific widget configuration. A commonly used approach is to wrap the expandable/collapsible element into a {{{Gtk::Expandable}}}, but there are notable exceptions, where the widget is bound to handle the expanding or reducing of information display all by itself. We bridge this discrepancy by introducing an {{{Expander}}} interface to act as adapter. 
+
+!!!revealing an element
+The UI-Element protocol also includes the ability to //reveal an element// -- which means actively to bring this element into sight, in case it is hidden, collapsed or obscured by scrolling away.
+{{red{As of 8/2018 this is just an idea}}}, and many details still need to be considered. Yet at least one point is clear: implementing such a feature requires the help of the container widget actually holding the element to be revealed. It might even happen that also the collaboration of the container holding aforementioned immediate parent container is necessary -- indicating a recursive implementation scheme.
 </pre>
 </div>
 <div title="GuiModelElements" creator="Ichthyostega" modifier="Ichthyostega" created="201501061138" modified="201703170201" tags="GuiIntegration design draft img" changecount="47">
@@ -9817,7 +9834,7 @@ The UI-Bus has a star shaped topology, with a central &quot;bus master&quot; hub
 :direct a MutationMessage towards the designated UI-Element, causing the latter to build a TreeMutator to receive the embedded [[diff-sequence|TreeDiffModel]]
 </pre>
 </div>
-<div title="UI-Element" creator="Ichthyostega" modifier="Ichthyostega" created="201511210307" modified="201704171607" tags="GuiPattern design draft decision" changecount="54">
+<div title="UI-Element" creator="Ichthyostega" modifier="Ichthyostega" created="201511210307" modified="201808301533" tags="GuiPattern design draft decision" changecount="57">
 <pre>While our UI widgets are implemented the standard way as proposed by [[GTKmm|http://www.gtkmm.org/en/documentation.html]], some key elements -- which are especially relevant for the anatomy and mechanics of the interface at a whole -- are made to conform to a common interface and behaviour protocol. {{red{WIP 11/15 work out gradually what this protocol is all about}}}. #975
 As a starting point, we know
 * there is a backbone structure known as the UI-Bus
@@ -9890,7 +9907,7 @@ It is clear by now (9/2016) how shape and content changes are to be represented
 !!!questions
 * how to integrate &quot;diff calls&quot; into UI-Bus and {{{Tangible}}}
 * how to ensure that diff processing happens within the event thread
-* what is the exact relation to the GuiModel -- this remained nebulous up to now
+* what is the exact relation to the GuiModel -- this remained nebulous up to now ({{red{8/2018}}} &amp;rArr; seems to be obsolete)
 
 !!!Diff messages
 The dispatch of //diff messages// is directly integrated into the UI-Bus -- which is not just some abstract messaging system, but deliberately made to act as backbone for the kind of operations and collaborations detailed here. This seamless integration helps to overcome several technical (detail) problems. For one, the diff framework itself is //generic,// which allows to apply diff sequences to a wide variety of different target data structures. And, secondly, choose the whole approach of diff messages delivered over a bus system for a very specific, architectural reason: we want to decouple from internal structures, while still allowing low-level collaboration over this abstracted interconnection channel. On both counts, we are thus bound to encapsulate the actual diff at interface level. So the MutationMessage marks the purpose to alter the designated {{{Tangible}}}, while offering an embedded, generic implementation to apply the (hidden) diff message, relying in turn on the interface {{{DiffMutatble}}}, which -- surprise -- is offered by {{{Tangible}}}. Basically this means that each tangible interface element offers the ability to be reshaped, by creating a TreeMutator on demand, internally wired to effect the changes inscribed within the diff.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7304dde48..0d18cd4e4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -7,8 +7,8 @@
 <node CREATED="1434128054470" HGAP="7" ID="ID_1166611516" MODIFIED="1518487921038" TEXT="Workflow" VSHIFT="-15">
 <node CREATED="1455289597596" ID="ID_970065036" MODIFIED="1518487921038" TEXT="work site"/>
 <node CREATED="1455289466261" ID="ID_273679080" MODIFIED="1518487921038" TEXT="PresentationState"/>
-<node CREATED="1487210691163" ID="ID_1259700796" MODIFIED="1518487921038" TEXT="konzeptioneller Rahmen">
-<linktarget COLOR="#34dbd3" DESTINATION="ID_1259700796" ENDARROW="Default" ENDINCLINATION="450;232;" ID="Arrow_ID_114106295" SOURCE="ID_1430752735" STARTARROW="None" STARTINCLINATION="-1346;-1090;"/>
+<node CREATED="1487210691163" ID="ID_1259700796" MODIFIED="1535638478130" TEXT="konzeptioneller Rahmen">
+<linktarget COLOR="#34dbd3" DESTINATION="ID_1259700796" ENDARROW="Default" ENDINCLINATION="473;607;" ID="Arrow_ID_114106295" SOURCE="ID_1430752735" STARTARROW="None" STARTINCLINATION="-1346;-1090;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <node CREATED="1487210978300" ID="ID_1502972928" MODIFIED="1518487921038" TEXT="Spot == wo wir sind"/>
 <node CREATED="1487211011447" ID="ID_61564732" MODIFIED="1518487921038" TEXT="Work Site == wo wir sein k&#xf6;nnen"/>
@@ -1605,8 +1605,9 @@
 </node>
 </node>
 </node>
-<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1534850802878" TEXT="mi&#xdf;brauche InfoBox">
+<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1535647887424" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
+<linktarget COLOR="#e0d18d" DESTINATION="ID_340215113" ENDARROW="Default" ENDINCLINATION="-389;5426;" ID="Arrow_ID_1440864098" SOURCE="ID_622217667" STARTARROW="None" STARTINCLINATION="-1637;-8191;"/>
 <icon BUILTIN="idea"/>
 <node COLOR="#338800" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1534527069860" TEXT="neues Dock(Panel)">
 <icon BUILTIN="button_ok"/>
@@ -1788,6 +1789,130 @@
     <p>der Parent-Container ist f&#252;r das expand/collapse zust&#228;ndig</p>
   </body>
 </html></richcontent>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535646954908" TEXT="Design-Problem: sich expandieren">
+<icon BUILTIN="pencil"/>
+<node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1535634126600" TEXT="Voraussetzung: unser Widget-Protokoll">
+<node CREATED="1535634127852" ID="ID_317106359" MODIFIED="1535634136126" TEXT="enth&#xe4;lt eine expand()-Methode"/>
+<node CREATED="1535636097808" ID="ID_1540209936" MODIFIED="1535636109795" TEXT="Unterschied Widget / Controller ?">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1535636169439" FOLDED="true" ID="ID_631287309" MODIFIED="1535646972760" TEXT="zwei Modelle denkbar">
+<icon BUILTIN="yes"/>
+<node CREATED="1535636219312" ID="ID_1940674226" MODIFIED="1535636242077" TEXT="Widget ist Expander">
+<icon BUILTIN="full-1"/>
+<node CREATED="1535636281176" ID="ID_232056866" MODIFIED="1535636470569" TEXT="w&#xe4;hle &quot;das Widget&quot; geeignet">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535636297102" ID="ID_1966837488" MODIFIED="1535636338854">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      als <i>denjenigen</i>&#160;Container...
+    </p>
+    <p>
+      ...der das <i>eigentliche</i>&#160;Widget expandieren kann
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535636621140" ID="ID_1785708787" MODIFIED="1535636640069" TEXT="pro">
+<node CREATED="1535636644385" ID="ID_976356089" MODIFIED="1535636649884" TEXT="elegantes Design"/>
+<node CREATED="1535636650664" ID="ID_457403473" MODIFIED="1535636661234" TEXT="minimalistisch"/>
+</node>
+<node CREATED="1535636640849" ID="ID_1629039815" MODIFIED="1535636642157" TEXT="con">
+<node CREATED="1535636663334" ID="ID_1826518668" MODIFIED="1535636693159" TEXT="ordnet alle anderen Belange diesem Belang unter">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ggfs m&#252;ssen alle anderen Funktionen nach unten delegieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535636755202" ID="ID_507299995" MODIFIED="1535636897708" TEXT="kann grunds&#xe4;tzlich nicht alle F&#xe4;lle abdecken">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      wenn n&#228;mlich das &quot;Expandieren&quot; in einen weiter reichenden Zusammenhang integriert ist,
+    </p>
+    <p>
+      wie z.B. Darstellung in verschiedenen Detailierungs-Graden, oder ein generelles
+    </p>
+    <p>
+      Fokus-/Layout- Management <i>mehrerer</i>&#160;Komponenten zusammen
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Standard-Beispiel: Property-Panel
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1535636904118" ID="ID_489559609" MODIFIED="1535636933948" TEXT="Fazit">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1535636909262" ID="ID_1644409361" MODIFIED="1535636911657" TEXT="abgelehnt"/>
+<node CREATED="1535636912365" ID="ID_298319841" MODIFIED="1535636929783" TEXT="da einfacher als die Essenz"/>
+</node>
+</node>
+<node CREATED="1535636231135" ID="ID_913979725" MODIFIED="1535636244698" TEXT="Widget kennt Expander">
+<icon BUILTIN="full-2"/>
+<node CREATED="1535636486110" ID="ID_285628512" MODIFIED="1535636495891" TEXT="in Form eines Adapters">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535636600599" ID="ID_103556348" MODIFIED="1535636618368" TEXT="der die &quot;expand/collapse&quot;-Funktionalit&#xe4;t abstrahiert"/>
+<node CREATED="1535637406019" ID="ID_1125726861" MODIFIED="1535637415126" TEXT="erm&#xf6;glicht generische Impl">
+<node CREATED="1535637416210" ID="ID_1038164215" MODIFIED="1535637424461" TEXT="Gegenwart des Adapters schaltet Feature ein"/>
+<node CREATED="1535637441351" ID="ID_181377485" MODIFIED="1535637498835" TEXT="Standard-Adapter f&#xfc;r Gtk::Expander"/>
+<node CREATED="1535637512597" ID="ID_1713615715" MODIFIED="1535637520896" TEXT="Parent-Container kann Adapter selber implementieren"/>
+<node CREATED="1535637534163" ID="ID_1194572504" MODIFIED="1535637548308" TEXT="kann mit &quot;Reveal&quot;-Funktion kombiniert werden"/>
+<node CREATED="1535638307459" ID="ID_1697210606" MODIFIED="1535638391524" TEXT="possibly to discover dynamically">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...wenn wir eine Mix-in -Implementierung w&#228;hlen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1535638228558" ID="ID_1027845785" MODIFIED="1535638283984" TEXT="Fazit">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535638234405" ID="ID_1845070371" MODIFIED="1535638250610" TEXT="komplex mit der Gefahr des Over-Engineering">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1535638255138" ID="ID_591635299" MODIFIED="1535638276217" TEXT="erscheint trotzdem als die angemessene L&#xf6;sung">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="forward"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535646941006" TEXT="Adapter-Interfaces entwerfen">
+<arrowlink COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
@@ -16899,7 +17024,8 @@
 </node>
 </node>
 <node CREATED="1477522265208" HGAP="53" ID="ID_41510242" MODIFIED="1518487921084" TEXT="Neuerungen" VSHIFT="28">
-<node CREATED="1477522271822" ID="ID_622217667" MODIFIED="1518487921084" TEXT="PanelExperiment">
+<node CREATED="1477522271822" ID="ID_622217667" MODIFIED="1535647887424" TEXT="PanelExperiment">
+<arrowlink COLOR="#e0d18d" DESTINATION="ID_340215113" ENDARROW="Default" ENDINCLINATION="-389;5426;" ID="Arrow_ID_1440864098" STARTARROW="None" STARTINCLINATION="-1637;-8191;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1477522330886" ID="ID_1920846276" MODIFIED="1518487921084" TEXT="ScrolledWindow"/>
 <node CREATED="1477522340573" ID="ID_168076322" MODIFIED="1518487921084" TEXT="Grid">
@@ -16912,7 +17038,7 @@
 <node CREATED="1477523561930" ID="ID_868197404" MODIFIED="1518487921084" TEXT="pack_start() "/>
 <node CREATED="1477523573184" ID="ID_1063091132" MODIFIED="1518487921084" TEXT="pack_end()"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534849790225" ID="ID_326815949" MODIFIED="1534850544930" TEXT="Aufgaben">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534849790225" HGAP="46" ID="ID_326815949" MODIFIED="1535647586457" TEXT="#1164 investigate docking panel behaviour">
 <linktarget COLOR="#a35f7f" DESTINATION="ID_326815949" ENDARROW="Default" ENDINCLINATION="33;189;" ID="Arrow_ID_746548615" SOURCE="ID_1536071305" STARTARROW="None" STARTINCLINATION="246;-229;"/>
 <icon BUILTIN="flag-pink"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850081097" ID="ID_264379011" MODIFIED="1534850134831" TEXT="m&#xf6;gliche Schachtelungen">
@@ -18046,7 +18172,7 @@
 <node CREATED="1448070559466" ID="ID_182430638" MODIFIED="1518487921085" TEXT="Controller"/>
 </node>
 <node CREATED="1448070583679" HGAP="30" ID="ID_1248152908" MODIFIED="1518487921085" TEXT="Protokoll">
-<node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1533684857379" TEXT="Verhaltensweisen">
+<node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1535638754133" TEXT="Verhaltensweisen">
 <cloud COLOR="#e0d6ba"/>
 <icon BUILTIN="info"/>
 <node CREATED="1448078268223" ID="ID_1027574047" MODIFIED="1518487921085" TEXT="Lebenszyklus">
@@ -18278,7 +18404,7 @@
 <node CREATED="1448659792782" ID="ID_1547056651" MODIFIED="1518487921086" TEXT="r&#xe4;umliche Navigation"/>
 <node CREATED="1448659824337" ID="ID_1734858009" MODIFIED="1518487921086" TEXT="Markierungen"/>
 </node>
-<node CREATED="1455236472002" HGAP="49" ID="ID_952544600" MODIFIED="1518487921086" TEXT="generische Eigenschaften" VSHIFT="15">
+<node CREATED="1455236472002" FOLDED="true" HGAP="49" ID="ID_952544600" MODIFIED="1535638928899" TEXT="generische Eigenschaften" VSHIFT="15">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1455236491432" ID="ID_1268644179" MODIFIED="1518487921086" TEXT="Idee">
 <icon BUILTIN="idea"/>
@@ -18408,6 +18534,111 @@
 </node>
 </node>
 </node>
+<node CREATED="1535639028984" ID="ID_316446199" MODIFIED="1535646941006" TEXT="hilfs-Abstraktionen">
+<linktarget COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" SOURCE="ID_447101734" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
+<node CREATED="1535639151330" ID="ID_301022990" MODIFIED="1535639159958" TEXT="mix-in">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1535639038857" ID="ID_978884512" MODIFIED="1535639051322" TEXT="erm&#xf6;glichen generische Implementierung">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535639052671" ID="ID_1134562624" MODIFIED="1535639073976" TEXT="Expander">
+<node CREATED="1535639110104" ID="ID_712715565" MODIFIED="1535639113355" TEXT="bool-Testbar"/>
+<node CREATED="1535639114727" ID="ID_1791716176" MODIFIED="1535639125769" TEXT="expand(yes)"/>
+<node CREATED="1535639129085" ID="ID_723131136" MODIFIED="1535639132713" TEXT="collapse()"/>
+</node>
+<node CREATED="1535639174623" ID="ID_1755607605" MODIFIED="1535639177466" TEXT="Revealer">
+<node CREATED="1535639337897" ID="ID_1186867690" MODIFIED="1535639379927" TEXT="defineRevealable(ID)"/>
+<node CREATED="1535639368981" ID="ID_220149026" MODIFIED="1535639375736" TEXT="isRevealable(ID)"/>
+<node CREATED="1535639517897" ID="ID_1175119585" MODIFIED="1535639523892" TEXT="reveal(ID)"/>
+<node CREATED="1535640911061" ID="ID_777387548" MODIFIED="1535640922887" TEXT="reveal(canvasX,canvasY)"/>
+</node>
+<node CREATED="1535655039395" ID="ID_1646511082" MODIFIED="1535655045412" TEXT="Diskussion">
+<icon BUILTIN="pencil"/>
+<node CREATED="1535655065175" ID="ID_702941818" MODIFIED="1535655069235" TEXT="Symmetrie?">
+<node CREATED="1535655118800" ID="ID_1058761508" MODIFIED="1535655127308" TEXT="Expander ist nur pro Komponente">
+<icon BUILTIN="smily_bad"/>
+</node>
+<node CREATED="1535655136902" ID="ID_126171743" MODIFIED="1535655170274" TEXT="Wunsch: Mix-ins in NavScope-Interface kombinieren">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1535655069967" ID="ID_340217269" MODIFIED="1535655076674" TEXT="Expander und Revealer als Proxy?">
+<node CREATED="1535655293760" ID="ID_1318206385" MODIFIED="1535655302082" TEXT="Syntax?">
+<node CREATED="1535655199741" ID="ID_942388081" MODIFIED="1535655235119" TEXT="scope.getExpander(ID).expand(false)">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1535655252694" ID="ID_1462365996" MODIFIED="1535655259251" TEXT="scope.canExpand(ID)">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1535655285938" ID="ID_1449182402" MODIFIED="1535655292365" TEXT="oder">
+<node CREATED="1535655304095" ID="ID_482365383" MODIFIED="1535655319455" TEXT="scope.expand(ID, true)">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1535655363543" ID="ID_1383221002" MODIFIED="1535655385497" TEXT="scope.canReveal(ID)">
+<icon BUILTIN="help"/>
+</node>
+</node>
+</node>
+<node CREATED="1535655400386" ID="ID_1267051500" MODIFIED="1535655402638" TEXT="Storage">
+<node CREATED="1535655416192" ID="ID_1700423924" MODIFIED="1535721537469" TEXT="value: Funktor">
+<icon BUILTIN="full-1"/>
+<node CREATED="1535655437493" ID="ID_949368248" MODIFIED="1535655450647" TEXT="kopierbar"/>
+<node CREATED="1535655452419" ID="ID_338667405" MODIFIED="1535655462678" TEXT="besteht nur aus std::function"/>
+<node CREATED="1535655501013" ID="ID_822333393" MODIFIED="1535655513719" TEXT="wird direkt im verwendenden Widget gespeichert"/>
+<node CREATED="1535722990637" ID="ID_1278252704" MODIFIED="1535723000688" TEXT="aber es gibt verdeckte Heap-Allokationen"/>
+<node CREATED="1535655479976" ID="ID_1685363954" MODIFIED="1535655485792" TEXT="Gefahr: dangling references">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+<node CREATED="1535655427943" ID="ID_1559607876" MODIFIED="1535721543060" TEXT="ref: Proxy-Objekt">
+<icon BUILTIN="full-2"/>
+<node CREATED="1535655553598" ID="ID_714380046" MODIFIED="1535655564832" TEXT="nicht-kopierbar"/>
+<node CREATED="1535655565420" ID="ID_1503255611" MODIFIED="1535655575607" TEXT="ist eine konkrete Subklasse"/>
+<node CREATED="1535655576843" ID="ID_1432131188" MODIFIED="1535655585397" TEXT="storage...">
+<node CREATED="1535655586265" ID="ID_267652544" MODIFIED="1535655612409" TEXT="entweder inline, aber mit vector&lt;function&gt;"/>
+<node CREATED="1535655613518" ID="ID_146906659" MODIFIED="1535655634423" TEXT="direkt auf dem Heap, mit expliziter konkreter Impl"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1535722960729" ID="ID_303674498" MODIFIED="1535722964125" TEXT="Abw&#xe4;gung"/>
+<node CREATED="1535640932722" ID="ID_1411372901" MODIFIED="1535655004304" TEXT="NavScope">
+<icon BUILTIN="help"/>
+<node CREATED="1535654864507" ID="ID_976171939" MODIFIED="1535654872624" TEXT="erst mal nur so eine Idee....">
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1535654895926" ID="ID_518978388" MODIFIED="1535655662803" TEXT="zwei Fliegen mit einer Klappe">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535654884104" ID="ID_1335278492" MODIFIED="1535654995472" TEXT="k&#xf6;nnte f&#xfc;r den ViewLocator n&#xfc;tzlich sein">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn dort fehlt noch die konkrete Implementierung,
+    </p>
+    <p>
+      welche die Monaden-Baum-Repr&#228;sentation schlie&#223;lich
+    </p>
+    <p>
+      auf konkrete Widgets abbildet. Das ist viel Arbeit, und es lie&#223;e sich vereinfachen,
+    </p>
+    <p>
+      wenn f&#252;r gewisse Knoten erkannt werden kann, da&#223; sie einen NavScope darstellen;
+    </p>
+    <p>
+      denn dann g&#228;be es eine Implementierung &quot;von der Stange&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
 <node CREATED="1455421282030" HGAP="54" ID="ID_1448430954" MODIFIED="1518487921086" TEXT="state mark" VSHIFT="12">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1455421310603" ID="ID_1677758546" MODIFIED="1518487921086" TEXT="slots und markXX sind aufgedoppelt"/>
@@ -24018,7 +24249,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1448658819990" ID="ID_405705528" MODIFIED="1518487921087" TEXT="API explizit">
+<node CREATED="1448658819990" FOLDED="true" ID="ID_405705528" MODIFIED="1535638840052" TEXT="API explizit">
 <icon BUILTIN="help"/>
 <node CREATED="1448658861760" ID="ID_1373851015" MODIFIED="1518487921087" TEXT="pro">
 <node CREATED="1448658867680" ID="ID_766147415" MODIFIED="1518487921087" TEXT="sauber"/>
@@ -24058,7 +24289,7 @@
 <node CREATED="1448683525822" ID="ID_1395068730" MODIFIED="1518487921087" TEXT="Gesten"/>
 </node>
 </node>
-<node CREATED="1448691191042" HGAP="35" ID="ID_1710578352" MODIFIED="1525124215240" TEXT="Lebenszyklus" VSHIFT="-1">
+<node CREATED="1448691191042" FOLDED="true" HGAP="35" ID="ID_1710578352" MODIFIED="1535638813532" TEXT="Lebenszyklus" VSHIFT="-1">
 <font NAME="SansSerif" SIZE="13"/>
 <icon BUILTIN="go"/>
 <node CREATED="1448691210544" ID="ID_242337741" MODIFIED="1448691218906" TEXT="Command-Skript: im Code"/>
@@ -24268,8 +24499,8 @@
 </node>
 </node>
 <node CREATED="1487210642170" HGAP="28" ID="ID_337241818" MODIFIED="1518487921088" TEXT="Rahmen global" VSHIFT="-1">
-<node CREATED="1487210648449" ID="ID_1430752735" MODIFIED="1518487921088" TEXT="konzeptionell">
-<arrowlink COLOR="#34dbd3" DESTINATION="ID_1259700796" ENDARROW="Default" ENDINCLINATION="450;232;" ID="Arrow_ID_114106295" STARTARROW="None" STARTINCLINATION="-1346;-1090;"/>
+<node CREATED="1487210648449" ID="ID_1430752735" MODIFIED="1535638478130" TEXT="konzeptionell">
+<arrowlink COLOR="#34dbd3" DESTINATION="ID_1259700796" ENDARROW="Default" ENDINCLINATION="473;607;" ID="Arrow_ID_114106295" STARTARROW="None" STARTINCLINATION="-1346;-1090;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <node CREATED="1487269963098" ID="ID_723170966" MODIFIED="1518487921088" TEXT="Raum als Metapher"/>
 <node CREATED="1487269990582" ID="ID_164128588" MODIFIED="1518487921088">
@@ -33984,6 +34215,63 @@
 </node>
 </node>
 </node>
+<node CREATED="1535632661385" ID="ID_1021079796" MODIFIED="1535632664916" TEXT="Hierarchie">
+<node CREATED="1535632673655" ID="ID_849385989" MODIFIED="1535632684721" TEXT="Gdk::Window">
+<node CREATED="1535632686045" ID="ID_20909674" MODIFIED="1535632722095">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ein Widget <i>kann</i>&#160;einem G<b>D</b>K-Window zugeordnet sein
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1535632728343" ID="ID_1087443097" MODIFIED="1535632737794" TEXT="dieses repr&#xe4;sentiert den low-level Screen-Space"/>
+<node CREATED="1535632754900" ID="ID_1804383493" MODIFIED="1535632762415" TEXT="diese Zuordnung hei&#xdf;t &quot;mapping&quot;"/>
+<node CREATED="1535632903512" ID="ID_653149380" MODIFIED="1535632929956" TEXT="Gtk::Widget::get_parent_window ()">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1535632766298" ID="ID_651213437" MODIFIED="1535632770166" TEXT="Container">
+<node CREATED="1535632771490" ID="ID_54072996" MODIFIED="1535632787931" TEXT="machen sich beim Hinzuf&#xfc;gen den Kindern bekannt"/>
+<node CREATED="1535632789207" ID="ID_1814287136" MODIFIED="1535632918202" TEXT="Gtk::Widget::get_parent ()">
+<node CREATED="1535632854135" ID="ID_1093554517" MODIFIED="1535632859610" TEXT="Gtk::Container *"/>
+<node CREATED="1535632860126" ID="ID_710254808" MODIFIED="1535632864913" TEXT="kann NULL sein"/>
+</node>
+<node CREATED="1535633353996" ID="ID_1722614856" MODIFIED="1535633359215" TEXT="Gtk::Widget::get_toplevel ()"/>
+<node CREATED="1535633447375" ID="ID_1390203707" LINK="https://developer.gnome.org/gtkmm/3.22/classGtk_1_1Widget.html#ad65bedf64acfd0401abbe489312fba8e" MODIFIED="1535633492092" TEXT="Widget *  Gtk::Widget::get_ancestor(GType widget_type)"/>
+</node>
+<node CREATED="1535633140424" ID="ID_293762905" MODIFIED="1535633144596" TEXT="WidgetPath">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535633147295" ID="ID_14373153" MODIFIED="1535633217669" TEXT="Konzept ist mir nicht klar">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      8/2018:
+    </p>
+    <p>
+      ist das eine Sequenz von konkreten Objekten, die ineinander verschachtelt sind?
+    </p>
+    <p>
+      oder ist es eine Vererbungs-Hierarchie, wie sie f&#252;r das CSS-Styling ben&#246;tigt wird?
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1535633221189" ID="ID_623946936" MODIFIED="1535633238637" TEXT="beachte: hier werden Typen (GType) gespeichert">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+<node CREATED="1535633267727" ID="ID_168272548" MODIFIED="1535633287322" TEXT="Gtk::Widget::get_path()">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
 <node CREATED="1477523681978" HGAP="14" ID="ID_400257229" MODIFIED="1534634566726" TEXT="Richtlinien" VSHIFT="11">
 <node CREATED="1477523701544" ID="ID_1802991794" MODIFIED="1518487921099" TEXT="empfohlen">
 <node CREATED="1477523709342" ID="ID_781118281" MODIFIED="1518487921099" TEXT="Box">

From 1f98895a893a846ec67224a7d4fcea63a235a755 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 17:41:42 +0200
Subject: [PATCH 036/178] DOC: start a documentation page with coding policies
 for the UI-Layer

---
 doc/technical/gui/CodePolicy.txt | 59 ++++++++++++++++++++++++++++++++
 doc/technical/gui/guiTheme.txt   |  4 ++-
 2 files changed, 62 insertions(+), 1 deletion(-)
 create mode 100644 doc/technical/gui/CodePolicy.txt

diff --git a/doc/technical/gui/CodePolicy.txt b/doc/technical/gui/CodePolicy.txt
new file mode 100644
index 000000000..cc1fa7cf4
--- /dev/null
+++ b/doc/technical/gui/CodePolicy.txt
@@ -0,0 +1,59 @@
+Coding Policies within UI-Layer
+===============================
+
+NOTE: for the time being, this is a loose collection of
+      Conventions and Policies deemed adequate for work
+      on the Lumiera UI-Layer
+
+
+Architecture
+------------
+
+The UI is loaded as Plug-In, which instantiates a `GtkLumiera` object.
+All of the UI activity happens within the blocking function `GtkLumiera::run()`.
+This UI activity boils down to run the GTK event loop; we use a dedicated thread,
+and all of the GUI thus performs single-threaded and need not be thread-safe.
+All UI activities thus need to be short running and with deterministic outcome.
+It is strictly prohibited to spawn other threads from within the event loop.
+
+We hold up a strict distinction between the _UI mechanics_ and the _core editing
+concerns_. The latter _must not be implemented within the UI-Layer._ Rather, you need
+to send an `act(CommandID)` message over the UI-Bus, which causes the corresponding
+Proc-Layer command script to be dispatched within the Session thread. It is good
+practice to give an immediate visual clue regarding the fact of sending such
+a command (e.g. pressing a button). But be prepared that the actual feedback
+of invoking a command happens asynchronously.
+
+UI-Model
+~~~~~~~~
+In short: _there is no dedicated UI-Model._ Stateful working data goes directly
+into the widgets. However, some widgets or controllers are special, insofar they
+correspond to and reflect some entities within the _Session model._ These special
+entities must be implemented as subclasses of `gui::model::Tangible`. These are
+always connected to the UI-Bus, and they are populated and mutated by receiving
+diff messages pushed up from the Proc-Layer.
+
+There is an _inner circle_ of UI backbone services. These are all mutually dependent
+on each other and their start-up sequence is intricate. Implement global and cross-cutting
+concerns here. In case some widget or controller needs access to such a service, then you
+should prefer using `lib::Depend<ServiceInterface>`, and install the corresponding service
+via `lib::DependInject<ServiceInterface>::ServiceInstance<ServiceImpl>`.
+
+
+Code organisation
+-----------------
+GTK is massive and compilation times tend to be problematic in the UI-Layer.
+Thus you should be diligent with the organisation of includes. Try to confine the
+more heavyweight includes within the implementation translation units. Use forward
+declarations and PImpl if possible. However, it is fine to write a mere implementation
+widget in header-only fashion, in case this improves the locality and readability of code.
+
+NOTE: `using namespace Gtk` and similar wildcard includes are prohibited.
+
+We are forced to observe a tricky include sequence, due to NoBug's `ERROR` macro,
+and also in order to get I18N right.
+Thus any actual translation unit should ensure that effectively the first include
+is that of 'gui/gtk-base.hpp'.footnote:[you need not include it literally. It is
+perfectly fine if you can be sure the first included header somehow drags in
+'gtk-base.hpp' before any other header.]
+
diff --git a/doc/technical/gui/guiTheme.txt b/doc/technical/gui/guiTheme.txt
index 8a0c2cab5..92fb9b3da 100644
--- a/doc/technical/gui/guiTheme.txt
+++ b/doc/technical/gui/guiTheme.txt
@@ -1,8 +1,10 @@
 Lumiera GUI style and theming
 =============================
 
+//Menu: label Theme/Style
+
+_this page collects some pieces of information regarding the visual appearance of the Lumiera GTK UI_
 
-'this page collects some pieces of information regarding the visual appearance of the Lumiera GTK GUI'
 
 GTK-3 styles
 ------------

From 551920e9520480e4cfafe1582130792e36fb816d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 18:30:21 +0200
Subject: [PATCH 037/178] UiElement: decide upon the design variant to use for
 expand() / reveal() (#1162)

---
 doc/technical/gui/CodePolicy.txt    |  35 ++++
 src/gui/model/expander-revealer.hpp |  93 ++++++++++
 src/gui/model/tangible.hpp          |   3 +-
 wiki/thinkPad.ichthyo.mm            | 263 +++++++++++++++++++++++-----
 4 files changed, 348 insertions(+), 46 deletions(-)
 create mode 100644 src/gui/model/expander-revealer.hpp

diff --git a/doc/technical/gui/CodePolicy.txt b/doc/technical/gui/CodePolicy.txt
index cc1fa7cf4..dbf547ad9 100644
--- a/doc/technical/gui/CodePolicy.txt
+++ b/doc/technical/gui/CodePolicy.txt
@@ -1,5 +1,6 @@
 Coding Policies within UI-Layer
 ===============================
+:Toc:
 
 NOTE: for the time being, this is a loose collection of
       Conventions and Policies deemed adequate for work
@@ -40,6 +41,40 @@ should prefer using `lib::Depend<ServiceInterface>`, and install the correspondi
 via `lib::DependInject<ServiceInterface>::ServiceInstance<ServiceImpl>`.
 
 
+Behaviour patterns
+------------------
+
+Parent Containers
+~~~~~~~~~~~~~~~~~
+A _Parent Container_ is an object managing a collection of children, with respect to
+the structure of _tangible UI elements._ Irrespective if this container is also a
+`Gtk::Container` widget, or ``just'' a controller. The key point to turn something
+into a _Parent Container_ is the fact that this entity creates the children
+in response to a (population) diff message.
+
+.Responsibilities
+- a _Parent Container_ has to wire each child properly, so to enable the adequate
+  use of the UI element protocol. This includes
+
+  ** to ensure the child is attached to the UI-Bus (usually enforced by ctor call)
+  ** to install a suitable `Expander` functor if the child supports expand/collapse
+  ** to install a suitable `Revealer` when it is relevant for the child to be brought
+     into sight in response to some message (e.g. to indicate error state).
+
+- whenever a child is detached from the container, you need to _ensure it is destroyed_
+  right away, before there is any chance of processing some other UI event.footnote:[
+  Invoking the destructor triggers a lot of magic here, especially it causes the child
+  to be properly detached from signals. We want to ensure this happens as soon as the
+  child is taken out of service. Do not use an ``can collect garbage later'' approach.]
+
+Error handling
+~~~~~~~~~~~~~~
+Be aware that GTK is written in C. And while GTKmm has some safeguards in place,
+better be sure no exception can emanate from event handling code.
+
+WARNING: [red]#TODO#: probably we'll need a common wrapper to do so...
+
+
 Code organisation
 -----------------
 GTK is massive and compilation times tend to be problematic in the UI-Layer.
diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
new file mode 100644
index 000000000..d61fc3857
--- /dev/null
+++ b/src/gui/model/expander-revealer.hpp
@@ -0,0 +1,93 @@
+/*
+  EXPANDER-REVEALER.hpp  -  functor components for standard UI element actions
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file expander-revealer.hpp
+ ** Helper components to implement some standard UI-element actions by installing a functor.
+ ** 
+ ** ## Interactions
+ ** 
+ ** @see [UI-Element protocol](\ref tangible.hpp)
+ ** @see \ref BusTerm_test
+ ** 
+ */
+
+
+#ifndef GUI_MODEL_EXPANDER_REVEALER_H
+#define GUI_MODEL_EXPANDER_REVEALER_H
+
+
+#include "lib/error.hpp"
+//#include "lib/idi/entry-id.hpp"
+//#include "lib/symbol.hpp"
+
+#include <functional>
+//#include <utility>
+//#include <string>
+
+
+namespace gui {
+namespace model {
+  
+//  using std::string;
+//  using lib::Symbol;
+  
+  
+  /**
+   * Functor component to support the default implementation of expanding/collapsing.
+   */
+  class Expander
+    {
+    public:
+    protected:
+      
+      
+      Expander()
+        { }
+      
+    public:
+      
+    protected:
+    };
+  
+  
+  /**
+   * Functor component to support the default implementation of revealing an UI-Element.
+   */
+  class Revealer
+    {
+    public:
+    protected:
+      
+      
+      Revealer()
+        { }
+      
+    public:
+      
+    protected:
+    };
+  
+  
+  
+}} // namespace gui::model
+#endif /*GUI_MODEL_EXPANDER_REVEALER_H*/
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index 393ba06b7..9ca3c0c99 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -105,7 +105,7 @@
  ** - **act**: send a \ref GenNode representing the action
  ** - **note**: _send_ a GenNode representing the _state mark_
  ** - **mark**: _receive_ a GenNode representing the _feedback,_ a replayed _state mark_ or _generic message._
- ** - **diff**: ask to retrieve a diff, which
+ ** - **diff**: prompt the element to retrieve a diff, which
  **   - either is an incremental status update
  **   - or is a from-scratch reconfiguration
  ** 
@@ -133,6 +133,7 @@
 #include "lib/error.hpp"
 #include "lib/nocopy.hpp"
 #include "gui/ctrl/bus-term.hpp"
+#include "gui/model/expander-revealer.hpp"
 #include "lib/diff/diff-mutable.hpp"
 #include "lib/idi/entry-id.hpp"
 #include "lib/symbol.hpp"
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0d18cd4e4..f3f2a9ee7 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1789,15 +1789,15 @@
     <p>der Parent-Container ist f&#252;r das expand/collapse zust&#228;ndig</p>
   </body>
 </html></richcontent>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535646954908" TEXT="Design-Problem: sich expandieren">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535731317069" TEXT="Design-Problem: sich expandieren">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1535634126600" TEXT="Voraussetzung: unser Widget-Protokoll">
 <node CREATED="1535634127852" ID="ID_317106359" MODIFIED="1535634136126" TEXT="enth&#xe4;lt eine expand()-Methode"/>
 <node CREATED="1535636097808" ID="ID_1540209936" MODIFIED="1535636109795" TEXT="Unterschied Widget / Controller ?">
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1535636169439" FOLDED="true" ID="ID_631287309" MODIFIED="1535646972760" TEXT="zwei Modelle denkbar">
+<node CREATED="1535636169439" FOLDED="true" ID="ID_631287309" MODIFIED="1535731360335" TEXT="zwei Modelle denkbar">
 <icon BUILTIN="yes"/>
 <node CREATED="1535636219312" ID="ID_1940674226" MODIFIED="1535636242077" TEXT="Widget ist Expander">
 <icon BUILTIN="full-1"/>
@@ -1908,10 +1908,38 @@
 </node>
 </node>
 </node>
+<node COLOR="#435e98" CREATED="1535731363267" ID="ID_603236457" MODIFIED="1535731485315" TEXT="L&#xf6;sung">
+<arrowlink COLOR="#5f8cc1" DESTINATION="ID_447101734" ENDARROW="Default" ENDINCLINATION="22;-23;" ID="Arrow_ID_272345450" STARTARROW="None" STARTINCLINATION="-97;-5;"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#435e98" CREATED="1535731373978" ID="ID_182280315" MODIFIED="1535731492690" TEXT="Widget h&#xe4;lt einen Expander-Funktor"/>
+<node CREATED="1535731402126" ID="ID_1177558244" MODIFIED="1535731498221" TEXT="damit ist eine Standard-Impl von Tangible::doExpand() m&#xf6;glich">
+<icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535646941006" TEXT="Adapter-Interfaces entwerfen">
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535731461556" TEXT="Adapter-Interfaces entwerfen">
 <arrowlink COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
+<linktarget COLOR="#5f8cc1" DESTINATION="ID_447101734" ENDARROW="Default" ENDINCLINATION="22;-23;" ID="Arrow_ID_272345450" SOURCE="ID_603236457" STARTARROW="None" STARTINCLINATION="-97;-5;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725900392" ID="ID_489679545" MODIFIED="1535725913903" TEXT="Expander">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725906647" ID="ID_1380126396" MODIFIED="1535725914798" TEXT="Revealer">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1535726072346" TEXT="default-Impl doExpand()">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726077504" ID="ID_1806068721" MODIFIED="1535726084288" TEXT="pr&#xfc;fen: canExpand">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726086631" ID="ID_1753268128" MODIFIED="1535726090655" TEXT="Expander aufrufen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535725936028" TEXT="Expander geeignet verdrahten">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535725949205" TEXT="validiert das Design"/>
 </node>
 </node>
 </node>
@@ -1966,13 +1994,25 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1534722142986" TEXT="revealYourself">
 <linktarget COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1535726030336" TEXT="default-Impl doReveal()">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1535726044126" TEXT="pr&#xfc;fen canReveal">
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722040354" ID="ID_633013" MODIFIED="1534722061920" TEXT="eigennen show/hide-Status erkennen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1534722072607" TEXT="braucht Parent-Link">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1535726058196" TEXT="Revealer aufrufen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1534722090132" TEXT="parent.reveal(this)">
+</node>
+<node CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1535725975155" TEXT="braucht Parent-Link">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1535725979353" TEXT="parent.reveal(this)">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535725997876" TEXT="Revealer geeignet verdrahten">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
@@ -18544,17 +18584,97 @@
 </node>
 <node CREATED="1535639052671" ID="ID_1134562624" MODIFIED="1535639073976" TEXT="Expander">
 <node CREATED="1535639110104" ID="ID_712715565" MODIFIED="1535639113355" TEXT="bool-Testbar"/>
-<node CREATED="1535639114727" ID="ID_1791716176" MODIFIED="1535639125769" TEXT="expand(yes)"/>
-<node CREATED="1535639129085" ID="ID_723131136" MODIFIED="1535639132713" TEXT="collapse()"/>
+<node CREATED="1535725570140" ID="ID_39824556" MODIFIED="1535725586590" TEXT="canExpand()"/>
+<node CREATED="1535639114727" ID="ID_1791716176" MODIFIED="1535725472597" TEXT="Funktions-Operator(bool expand)"/>
 </node>
 <node CREATED="1535639174623" ID="ID_1755607605" MODIFIED="1535639177466" TEXT="Revealer">
-<node CREATED="1535639337897" ID="ID_1186867690" MODIFIED="1535639379927" TEXT="defineRevealable(ID)"/>
-<node CREATED="1535639368981" ID="ID_220149026" MODIFIED="1535639375736" TEXT="isRevealable(ID)"/>
-<node CREATED="1535639517897" ID="ID_1175119585" MODIFIED="1535639523892" TEXT="reveal(ID)"/>
-<node CREATED="1535640911061" ID="ID_777387548" MODIFIED="1535640922887" TEXT="reveal(canvasX,canvasY)"/>
+<node CREATED="1535639368981" ID="ID_220149026" MODIFIED="1535725407546">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <i>nicht</i>&#160;bool-Testbar
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ganz bewu&#223;t verzichten wir darauf,
+    </p>
+    <p>
+      festzustellen, ob ein Kind gegenw&#228;rtig zug&#228;nglich (revealed) ist.
+    </p>
+    <p>
+      Denn dies auf dem API zu exponieren bringt keinen Mehrwehrt.
+    </p>
+    <p>
+      Letztlich ist das ein lokales Detail des Layout-Managers.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Es ist nicht Sache des client-Codes, auf einem Widget ein anderes Verhalten auszul&#246;sen,
+    </p>
+    <p>
+      wenn es nicht sichtbar ist. Denn Sichtbarkeit geh&#246;rt zur UI-Mechanik und geht den Client nix an
+    </p>
+  </body>
+</html>
+</richcontent>
 </node>
-<node CREATED="1535655039395" ID="ID_1646511082" MODIFIED="1535655045412" TEXT="Diskussion">
-<icon BUILTIN="pencil"/>
+<node CREATED="1535725591561" ID="ID_1362809449" MODIFIED="1535725594837" TEXT="canReveal()"/>
+<node CREATED="1535639517897" ID="ID_1175119585" MODIFIED="1535725607419" TEXT="Funktions-Operator(void) == reveal"/>
+<node CREATED="1535640911061" ID="ID_777387548" MODIFIED="1535725678665" TEXT="reveal(canvasX,canvasY) auf dem Layout-Manager"/>
+</node>
+<node CREATED="1535640932722" FOLDED="true" ID="ID_1411372901" MODIFIED="1535723883504" TEXT="NavScope">
+<icon BUILTIN="button_cancel"/>
+<icon BUILTIN="hourglass"/>
+<node CREATED="1535654864507" ID="ID_976171939" MODIFIED="1535654872624" TEXT="erst mal nur so eine Idee....">
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1535654895926" ID="ID_518978388" MODIFIED="1535655662803" TEXT="zwei Fliegen mit einer Klappe">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535654884104" ID="ID_1335278492" MODIFIED="1535654995472" TEXT="k&#xf6;nnte f&#xfc;r den ViewLocator n&#xfc;tzlich sein">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn dort fehlt noch die konkrete Implementierung,
+    </p>
+    <p>
+      welche die Monaden-Baum-Repr&#228;sentation schlie&#223;lich
+    </p>
+    <p>
+      auf konkrete Widgets abbildet. Das ist viel Arbeit, und es lie&#223;e sich vereinfachen,
+    </p>
+    <p>
+      wenn f&#252;r gewisse Knoten erkannt werden kann, da&#223; sie einen NavScope darstellen;
+    </p>
+    <p>
+      denn dann g&#228;be es eine Implementierung &quot;von der Stange&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1535723854290" ID="ID_333598922" MODIFIED="1535723874600" TEXT="f&#xe4;llt aus diesem Thema heraus">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node CREATED="1535655039395" FOLDED="true" ID="ID_1646511082" MODIFIED="1535725225038" TEXT="Diskussion">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535655065175" ID="ID_702941818" MODIFIED="1535655069235" TEXT="Symmetrie?">
 <node CREATED="1535655118800" ID="ID_1058761508" MODIFIED="1535655127308" TEXT="Expander ist nur pro Komponente">
 <icon BUILTIN="smily_bad"/>
@@ -18562,8 +18682,26 @@
 <node CREATED="1535655136902" ID="ID_126171743" MODIFIED="1535655170274" TEXT="Wunsch: Mix-ins in NavScope-Interface kombinieren">
 <icon BUILTIN="idea"/>
 </node>
+<node CREATED="1535723351533" ID="ID_909635517" MODIFIED="1535723375219">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      aber die Operationen sind <i>der Sache nach</i>&#160;nicht symmetrisch
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
 </node>
-<node CREATED="1535655069967" ID="ID_340217269" MODIFIED="1535655076674" TEXT="Expander und Revealer als Proxy?">
+<node CREATED="1535725181176" ID="ID_1947404851" MODIFIED="1535725210681" TEXT="ins Kind verlagert lassen sie sich jedoch symmetrisieren">
+<icon BUILTIN="forward"/>
+</node>
+</node>
+<node CREATED="1535655069967" FOLDED="true" ID="ID_340217269" MODIFIED="1535725176627" TEXT="Expander und Revealer als Proxy?">
+<icon BUILTIN="stop-sign"/>
 <node CREATED="1535655293760" ID="ID_1318206385" MODIFIED="1535655302082" TEXT="Syntax?">
 <node CREATED="1535655199741" ID="ID_942388081" MODIFIED="1535655235119" TEXT="scope.getExpander(ID).expand(false)">
 <icon BUILTIN="help"/>
@@ -18602,40 +18740,75 @@
 </node>
 </node>
 </node>
+<node CREATED="1535724509562" ID="ID_833385943" MODIFIED="1535724515909" TEXT="Implementierungs-Modell">
+<node CREATED="1535724523160" FOLDED="true" ID="ID_1440345421" MODIFIED="1535725153382" TEXT="Parent-Container f&#xfc;hrt Index">
+<icon BUILTIN="full-1"/>
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1535724838670" ID="ID_1787800884" MODIFIED="1535724867702" TEXT="das Kind wird dort per ID registriert"/>
+<node CREATED="1535724882528" ID="ID_1169954047" MODIFIED="1535724888883" TEXT="per ID bekommt man einen...">
+<node CREATED="1535724890399" ID="ID_1544051424" MODIFIED="1535724893410" TEXT="Expander-Proxy"/>
+<node CREATED="1535724894022" ID="ID_91331753" MODIFIED="1535724897842" TEXT="Revealer-Proxy"/>
 </node>
-<node CREATED="1535722960729" ID="ID_303674498" MODIFIED="1535722964125" TEXT="Abw&#xe4;gung"/>
-<node CREATED="1535640932722" ID="ID_1411372901" MODIFIED="1535655004304" TEXT="NavScope">
-<icon BUILTIN="help"/>
-<node CREATED="1535654864507" ID="ID_976171939" MODIFIED="1535654872624" TEXT="erst mal nur so eine Idee....">
+<node CREATED="1535724910940" ID="ID_1389683609" MODIFIED="1535724922199" TEXT="das Kind h&#xe4;lt eine Referenz auf seinen Parent"/>
+</node>
+<node CREATED="1535724555244" ID="ID_336857888" MODIFIED="1535724635442" TEXT="Parent-Container konfiguriert Funktor in das Kind">
+<icon BUILTIN="full-2"/>
+<icon BUILTIN="forward"/>
+<node CREATED="1535724936297" ID="ID_947922423" MODIFIED="1535724966529" TEXT="die default-Impl des Kindes enth&#xe4;lt Storage f&#xfc;r diese Funktoren"/>
+<node CREATED="1535724976291" ID="ID_1742203413" MODIFIED="1535724996837" TEXT="beim Einbinden in einen Container verdrahtet dieser die Funktoren"/>
+<node CREATED="1535724997873" ID="ID_493457848" MODIFIED="1535725010507" TEXT="und aktiviert damit ggfs die F&#xe4;higkeit Expand/Reveal"/>
+<node CREATED="1535725011710" ID="ID_206250793" MODIFIED="1535725020409" TEXT="das Kind kennt seinen Parent nicht"/>
+</node>
+<node CREATED="1535724570738" FOLDED="true" ID="ID_1785171345" MODIFIED="1535725155045" TEXT="Funktor ist in Mix-in im Kind gespeichert">
+<icon BUILTIN="full-3"/>
 <icon BUILTIN="hourglass"/>
+<node CREATED="1535725026621" ID="ID_1063803104" MODIFIED="1535725041437" TEXT="Erweiterung zur L&#xf6;sung">
+<icon BUILTIN="full-2"/>
 </node>
-<node CREATED="1535654895926" ID="ID_518978388" MODIFIED="1535655662803" TEXT="zwei Fliegen mit einer Klappe">
-<icon BUILTIN="ksmiletris"/>
+<node CREATED="1535725048130" ID="ID_1987768737" MODIFIED="1535725075314" TEXT="die Funktor-Storage wird in das Kind als Mix-in eingebaut"/>
+<node CREATED="1535725076142" ID="ID_904760905" MODIFIED="1535725093936" TEXT="dieser Mix-In &#xfc;berschreibt auch die default-NOP-Implementierung"/>
+<node CREATED="1535725100803" ID="ID_1869635653" MODIFIED="1535725113085" TEXT="man k&#xf6;nnte auf Typ-Ebene Capabilities pr&#xfc;fen"/>
+<node CREATED="1535725117080" ID="ID_417282292" MODIFIED="1535725140662" TEXT="diese L&#xf6;sung erscheit cool, aber im Moment &#xfc;bertrieben">
+<icon BUILTIN="smiley-oh"/>
 </node>
-<node CREATED="1535654884104" ID="ID_1335278492" MODIFIED="1535654995472" TEXT="k&#xf6;nnte f&#xfc;r den ViewLocator n&#xfc;tzlich sein">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...denn dort fehlt noch die konkrete Implementierung,
-    </p>
-    <p>
-      welche die Monaden-Baum-Repr&#228;sentation schlie&#223;lich
-    </p>
-    <p>
-      auf konkrete Widgets abbildet. Das ist viel Arbeit, und es lie&#223;e sich vereinfachen,
-    </p>
-    <p>
-      wenn f&#252;r gewisse Knoten erkannt werden kann, da&#223; sie einen NavScope darstellen;
-    </p>
-    <p>
-      denn dann g&#228;be es eine Implementierung &quot;von der Stange&quot;
-    </p>
-  </body>
-</html>
-</richcontent>
+</node>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1535722960729" FOLDED="true" ID="ID_303674498" MODIFIED="1535725812302" TEXT="Abw&#xe4;gung">
+<icon BUILTIN="yes"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1535723619257" ID="ID_1146060205" MODIFIED="1535723638348" TEXT="Ich folge dem appeal der Funktor-L&#xf6;sung">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1535723641150" ID="ID_945428972" MODIFIED="1535723664351" TEXT="die beiden F&#xe4;lle werden symmetrisch gemacht..."/>
+<node CREATED="1535723665347" ID="ID_243620982" MODIFIED="1535723693571" TEXT="...indem sie als Funktor direkt in das Widget verlagert sind"/>
+<node CREATED="1535723705158" ID="ID_1284580377" MODIFIED="1535723721479" TEXT="das API reveal(ID) auf dem Parent entf&#xe4;llt ersatzlos"/>
+<node CREATED="1535723722763" ID="ID_751870134" MODIFIED="1535723735461" TEXT="das Herstellen der Funktoren wird ein Implementierungs-Detail"/>
+<node CREATED="1535725684749" ID="ID_711293491" MODIFIED="1535725797751" TEXT="bubble-Up pasiert somit nur noch implizit">
+<node CREATED="1535725711241" ID="ID_1059426307" MODIFIED="1535725743161" TEXT="sofern der Parent-Container seinen eigenen Revealer aufrufen kann"/>
+<node CREATED="1535725744085" ID="ID_1761380382" MODIFIED="1535725770365" TEXT="dagegen das reveal(canvasX,canvasY) wird explizit auf den Layout-Manager verschoben"/>
+<node CREATED="1535725771305" ID="ID_988494427" MODIFIED="1535725789821" TEXT="...welcher somit explizit an geeigneter Stelle verdrahtet sein mu&#xdf;">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1535723783155" ID="ID_1961294443" MODIFIED="1535725808284" TEXT="Konsequenz: die Idee mit den Mix-ins gebe ich auf">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node COLOR="#435e98" CREATED="1535723904043" HGAP="12" ID="ID_878787948" MODIFIED="1535725871700" TEXT="Struktur">
+<icon BUILTIN="info"/>
+<node CREATED="1535723916153" ID="ID_91381589" MODIFIED="1535723927220" TEXT="Tangible bekommt einen Expander und einen Revealer"/>
+<node CREATED="1535723930631" ID="ID_1166620864" MODIFIED="1535723955464" TEXT="default-konstruiert sind diese Funktionen deaktiviert"/>
+<node CREATED="1535723958404" ID="ID_1293339775" MODIFIED="1535723973358" TEXT="es gibt hierf&#xfc;r ein Konfigurations-API">
+<node CREATED="1535723978137" ID="ID_1758020852" MODIFIED="1535724000466" TEXT="installExpander(lambda, lambda)"/>
+<node CREATED="1535723987360" ID="ID_1134664898" MODIFIED="1535723995651" TEXT="installRevealer(lambda)"/>
+</node>
+<node CREATED="1535724283280" ID="ID_316168549" MODIFIED="1535724371580" TEXT="ein Container-Parent hat die Pflicht, diese Funktoren ggfs zu installieren">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1535724349855" ID="ID_782260645" MODIFIED="1535724369173" TEXT="aus einer Hierarchie herausgenommene Widgets sind unverz&#xfc;glich zu zerst&#xf6;ren">
+<icon BUILTIN="yes"/>
 </node>
 </node>
 </node>

From 04424fb8df18692766ddd46903326ef6696c5db4 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 19:52:24 +0200
Subject: [PATCH 038/178] UiElement: code and document the functor components

---
 src/gui/model/expander-revealer.hpp | 132 +++++++++++++++++++++++-----
 wiki/thinkPad.ichthyo.mm            |  21 +++--
 2 files changed, 125 insertions(+), 28 deletions(-)

diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index d61fc3857..c2d7b435e 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -23,11 +23,37 @@
 
 /** @file expander-revealer.hpp
  ** Helper components to implement some standard UI-element actions by installing a functor.
+ ** The protocol for operating UI elements connected to the [UI-Bus](\ref ui-bus.hpp) includes
+ ** some generic operations, which need to be concretised for each actual usage situation.
+ ** Moreover, there are many situations where implementing those actions does not make
+ ** much sense, and thus they need to be treated as optional.
+ ** - some widgets or elements can be expanded or collapsed, to show more information
+ **   or to save screen real estate. Such widgets also expose an _expansion_ state.
+ ** - sometimes it is necessary to bring a given widget into sight, be it to show
+ **   the effect of some processing, or be it to indicate an error situation.
  ** 
- ** ## Interactions
+ ** ## Usage in the default implementation
+ ** 
+ ** The base class of all [tangible UI elements](\ref Tangible) provides a default implementation
+ ** for these generic interaction mechanism: It offers slots to connect UI signals against, and
+ ** it understands the _`mark`_ messages "`expand`" and "`revealYourself`". These are implemented
+ ** by delegating to the \ref Expander and \ref Revealer functors respectively. Moreover, this
+ ** default implementation automatically detects a resulting state change and emits an appropriate
+ ** _`note`_ message on the UI-Bus, so to make those state changes persistent. However, in order
+ ** to supply an concrete implementation, depending on the circumstances, either the widget itself
+ ** or a parent container holding the element needs to install lambdas into those functor holders,
+ ** to detail what actually needs to be done. E.g. it is quite common to implement the "expand"
+ ** functionality by wrapping the widget into a `Gtk::Expander`. Which effectively means that
+ ** the widget itself is not able to expand itself, since this `Gtk::Expander` container widget
+ ** lives within the parent widget to hold the element. So this parent needs to install a
+ ** lambda when establishing the child element, and bind it to the `Gtk::Expander::set_expanded`
+ ** property, and the corresponding `Gtk::Expander::get_expanded` to retrieve the current
+ ** _expansion state_. However, to the contrary, some widgets do implement their _expansion state_
+ ** all by themselves, e.g. by switching the presentation layout. Those widgets will have to
+ ** install an appropriate Expander functor within their constructor.
  ** 
  ** @see [UI-Element protocol](\ref tangible.hpp)
- ** @see \ref BusTerm_test
+ ** @see [usage example](\ref error-log-display.hpp)
  ** 
  */
 
@@ -37,54 +63,118 @@
 
 
 #include "lib/error.hpp"
-//#include "lib/idi/entry-id.hpp"
-//#include "lib/symbol.hpp"
 
 #include <functional>
-//#include <utility>
-//#include <string>
+#include <utility>
 
 
 namespace gui {
 namespace model {
-  
-//  using std::string;
-//  using lib::Symbol;
+
+  using std::move;
   
   
   /**
    * Functor component to support the default implementation of expanding/collapsing.
+   * It is built based on closures (lambdas) to explicate how to detect the expansion
+   * state of the widget in question and how actively to expand or collapse it.
+   * A default constructed Expander disables this feature -- which can be detected
+   * through the #canExpand() function.
    */
   class Expander
     {
-    public:
-    protected:
+      using ProbeFun = std::function<bool(void)>;
+      using ChangeFun = std::function<void(bool)>;
       
-      
-      Expander()
-        { }
+      ProbeFun probeState_;
+      ChangeFun changeState_;
       
     public:
+      Expander() { }
+      Expander(ProbeFun detectCurrExpansionState, ChangeFun expand_collapse)
+        : probeState_{move (detectCurrExpansionState)}
+        , changeState_{move (expand_collapse)}
+        {
+          ENSURE (canExpand());
+        }
       
-    protected:
+      bool
+      canExpand()  const
+        {
+          return bool{probeState_}
+             and bool{changeState_};
+        }
+      
+      operator bool()  const
+        {
+          REQUIRE (canExpand());
+          return probeState_();
+        }
+      
+      bool
+      operator() (bool shallExpand)
+        {
+          REQUIRE (canExpand());
+          bool currState = probeState_();
+          if (currState != shallExpand)
+            changeState_(shallExpand);
+          return currState;
+        }
+      
+      /* === alternate "expressive" API === */
+      bool
+      expand (bool yes =true)
+        {
+          return this->operator() (yes);
+        }
+      
+      bool
+      collapse()
+        {
+          return expand (false);
+        }
+      
+      bool
+      isExpanded()  const
+        {
+          return bool{*this};
+        }
     };
   
   
+  
   /**
    * Functor component to support the default implementation of revealing an UI-Element.
+   * It is built based on a closure (lambda) detailing what actually to do in order
+   * to bring a given UI element into sight. A default constructed Revealer disables
+   * this feature, which can be detected through the #canReveal() function.
    */
   class Revealer
     {
-    public:
-    protected:
+      using RevealeItFun = std::function<void()>;
       
-      
-      Revealer()
-        { }
+      RevealeItFun revealIt_;
       
     public:
+      Revealer() { }
+      Revealer(RevealeItFun how_to_uncover_the_element)
+        : revealIt_{move (how_to_uncover_the_element)}
+        {
+          ENSURE (canReveal());
+        }
       
-    protected:
+      bool
+      canReveal()  const
+        {
+          return bool{revealIt_};
+        }
+      
+      void
+      operator()()
+        {
+          REQUIRE (canReveal());
+          revealIt_();
+        }
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f3f2a9ee7..92feff65a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1779,7 +1779,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535554936517" TEXT="essentiell: passiert im Parent-Widget">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535737885653" TEXT="essentiell: passiert im Parent-Widget">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1789,6 +1789,7 @@
     <p>der Parent-Container ist f&#252;r das expand/collapse zust&#228;ndig</p>
   </body>
 </html></richcontent>
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535731317069" TEXT="Design-Problem: sich expandieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1535634126600" TEXT="Voraussetzung: unser Widget-Protokoll">
@@ -1917,15 +1918,15 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535731461556" TEXT="Adapter-Interfaces entwerfen">
+<node COLOR="#338800" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535737874447" TEXT="Adapter-Interfaces entwerfen">
 <arrowlink COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
 <linktarget COLOR="#5f8cc1" DESTINATION="ID_447101734" ENDARROW="Default" ENDINCLINATION="22;-23;" ID="Arrow_ID_272345450" SOURCE="ID_603236457" STARTARROW="None" STARTINCLINATION="-97;-5;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725900392" ID="ID_489679545" MODIFIED="1535725913903" TEXT="Expander">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535725900392" ID="ID_489679545" MODIFIED="1535737870629" TEXT="Expander">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725906647" ID="ID_1380126396" MODIFIED="1535725914798" TEXT="Revealer">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535725906647" ID="ID_1380126396" MODIFIED="1535737872678" TEXT="Revealer">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1535726072346" TEXT="default-Impl doExpand()">
@@ -1941,6 +1942,9 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535725949205" TEXT="validiert das Design"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1535737905991" TEXT="Unit-Test">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
@@ -2015,6 +2019,9 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535725997876" TEXT="Revealer geeignet verdrahten">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1535737923428" TEXT="Unit-Test: AbtractTangible_test erweitern">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 </node>

From 51a7670425862365c8128c179a7eea612c564a29 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 21:38:33 +0200
Subject: [PATCH 039/178] UiElement: integrate a default implementation based
 on the Expander functor

---
 src/gui/model/controller.hpp        |  6 ------
 src/gui/model/expander-revealer.hpp |  4 ++++
 src/gui/model/tangible.cpp          | 19 +++++++++++++++++++
 src/gui/model/tangible.hpp          | 25 ++++++++++++++++++++++++-
 src/gui/model/widget.hpp            |  6 ------
 wiki/renderengine.html              | 16 ++++++++++------
 wiki/thinkPad.ichthyo.mm            | 27 +++++++++++++++++++++------
 7 files changed, 78 insertions(+), 25 deletions(-)

diff --git a/src/gui/model/controller.hpp b/src/gui/model/controller.hpp
index 7d4d5a085..f44df49d0 100644
--- a/src/gui/model/controller.hpp
+++ b/src/gui/model/controller.hpp
@@ -70,12 +70,6 @@ namespace model {
           UNIMPLEMENTED ("Controller reset");
         }
       
-      virtual bool
-      doExpand (bool yes)  override
-        {
-          UNIMPLEMENTED ("Controller doExpand");
-        }
-      
       virtual void
       doReveal (ID child)  override
         {
diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index c2d7b435e..662918b2d 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -83,9 +83,11 @@ namespace model {
    */
   class Expander
     {
+    public:
       using ProbeFun = std::function<bool(void)>;
       using ChangeFun = std::function<void(bool)>;
       
+    private:
       ProbeFun probeState_;
       ChangeFun changeState_;
       
@@ -151,8 +153,10 @@ namespace model {
    */
   class Revealer
     {
+    public:
       using RevealeItFun = std::function<void()>;
       
+    private:
       RevealeItFun revealIt_;
       
     public:
diff --git a/src/gui/model/tangible.cpp b/src/gui/model/tangible.cpp
index 1c5f4de5e..f435174b0 100644
--- a/src/gui/model/tangible.cpp
+++ b/src/gui/model/tangible.cpp
@@ -148,6 +148,9 @@ namespace model {
    *       behaviour. If this virtual method returns `true`, the
    *       state change is deemed relevant and persistent, and
    *       thus a "state mark" is sent on the UI-Bus.
+   * @remark a default implementation of ::doExpand() is provided,
+   *       based on installing an \ref Expander functor through
+   *       the [configuration function](\ref #installExpander).
    */
   void
   Tangible::slotExpand()
@@ -169,6 +172,22 @@ namespace model {
   }
   
   
+  /**
+   * generic default implementation of the expand/collapse functionality.
+   * Based on the #expand_ functor, which needs to be [configured](\ref installExpander())
+   * explicitly to enable this functionality.
+   * @return `true` if the actual expansion state has been changed.
+   */
+  bool
+  Tangible::doExpand (bool yes)
+  {
+    if (not expand_.canExpand())
+      return false;
+    bool oldState = expand_(yes);
+    return oldState != yes; // actually changed
+  }
+  
+  
   /**
    * @todo 12/2015 not clear yet what needs to be done
    * @remarks the intention is to request the given child
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index 9ca3c0c99..137e9ea3e 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -176,9 +176,14 @@ namespace model {
       
       ctrl::BusTerm uiBus_;
       
+      Expander expand_;
+      Revealer reveal_;
+      
       
       Tangible(ID identity, ctrl::BusTerm& nexus)
         : uiBus_{nexus.attach(identity, *this)}
+        , expand_{}
+        , reveal_{}
         { }
       
     public:
@@ -205,11 +210,13 @@ namespace model {
       void markErr (string error);
       void mark(GenNode const&);
       
+      void installExpander (Expander::ProbeFun, Expander::ChangeFun);
+      
     protected:
       virtual bool doReset()           =0;
       virtual bool doClearMsg()        =0;
       virtual bool doClearErr()        =0;
-      virtual bool doExpand (bool yes) =0;
+      virtual bool doExpand (bool yes);
       virtual void doReveal (ID child) =0;
       virtual void doRevealYourself () =0;
       
@@ -249,6 +256,22 @@ namespace model {
   }           // not typed, no attributes, all arguments as children
   
   
+  /**
+   * Configure the (optional) functionality to expand or collapse the UI-Element.
+   * @param detectCurrExpansionState a lambda or function<bool()> to retrieve if the element is currently expanded
+   * @param howto_expand_collapse a lambda or function<void(bool)> to switch the element's expansion state
+   * @note unless this setup function is invoked, the expand/collapse functionality remains disabled;
+   *       invoking the #slotExpand() or sending **mark** "`expand`" messages via UI-Bus has no effect then.
+   */
+  inline void
+  Tangible::installExpander (Expander::ProbeFun detectCurrExpansionState,
+                             Expander::ChangeFun howto_expand_collapse)
+  {
+    expand_ = Expander{move (detectCurrExpansionState), move (howto_expand_collapse)};
+  }
+
+  
+  
   
 }} // namespace gui::model
 #endif /*GUI_MODEL_TANGIBLE_H*/
diff --git a/src/gui/model/widget.hpp b/src/gui/model/widget.hpp
index 5302cfbd5..d5b303725 100644
--- a/src/gui/model/widget.hpp
+++ b/src/gui/model/widget.hpp
@@ -67,12 +67,6 @@ namespace model {
           UNIMPLEMENTED ("Widget reset");
         }
       
-      virtual bool
-      doExpand (bool yes)  override
-        {
-          UNIMPLEMENTED ("Widget doExpand");
-        }
-      
       virtual void
       doReveal (ID child)  override
         {
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 92b89d1d0..af92192b7 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -1523,10 +1523,10 @@ Lumiera agrees to this common understanding (of most film editing and sound hand
 &amp;rarr; PipeHandling
 </pre>
 </div>
-<div title="ClipPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611200101" modified="201611280204" tags="def GuiPattern img" changecount="10">
+<div title="ClipPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611200101" modified="201808311828" tags="def GuiPattern img" changecount="11">
 <pre>//mediating entity used to guide and control the presentation of a clip in the UI.//
 
-The clip representation in the UI links together two distinct realms and systems of concerns. For one, there are the properties and actions performed on the clip for sake of editing a movie. Everything which has a tangible effect on the resulting render. These information and operations are embodied into the HighLevelModel and can be manipulated script driven, without relying on an UI. But beyond that, there is also the local mechanics of the interface, everything which makes working on the edit and interacting with the model into a smooth experience and workflow. With respect to this concerns, a clip is a self-contained entity which owns its own state and behaviour. The ClipPresenter is the pivotal element to link together those two realms.
+The clip representation in the UI links together two distinct realms and systems of concerns. For one, there are the properties and actions performed on the clip for sake of editing a movie. Everything which has a tangible effect on the resulting render. These information and operations are embodied into the HighLevelModel and can be manipulated script driven, without relying on an UI. But beyond that, there is also the local mechanics of the interface, everything which makes working on the edit and interacting with the model into a smooth experience and workflow. With respect to these concerns, a clip is a self-contained entity which owns its own state and behaviour. The ClipPresenter is the pivotal element to link together those two realms.
 
 [&gt;img[Clip presentation control|uml/Timeline-clip-display.png]]
 Regarding the global angle, the ClipPresenter is an UI-Element connected to the UI-Bus, and it is added as child element to some parent entity, a TrackPresenter, which likewise serves as UI representation of a [[fork (&quot;track&quot;)|Fork]], and controls widgets to render a track like working scope (in the header pane and in the timeline contents pane). Commands manipulating the clip can be sent via the embedded bus terminal, and status regarding clip properties and nested child elements (effects, transitions) is received as messages via the bus, which insofar plays the role of model and controller.
@@ -3241,7 +3241,7 @@ More specifically, the integration is based on ''messaging''. To start with, the
 ----
 In a preliminary attempt to establish an integration between the GUI and the lower layers, in 1/2009 we created an PlayerDummy, which &quot;pulls&quot; dummy frames from the (not yet existing) engine and displays them within an XV viewer widget. This highlighted the problems we're about to encounter and made us think about the more radically decoupled approach we followed thereafter...</pre>
 </div>
-<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808301754" tags="GuiIntegration design draft" changecount="22">
+<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808311937" tags="GuiIntegration design draft" changecount="23">
 <pre>Building a layered architecture is a challenge, since the lower layer //really// needs to be self-contained, while prepared for usage by the higher layer.
 A major fraction of all desktop applications is written in a way where operational logic is built around the invocation from UI events -- what should be a shell turns into a backbone. One possible way to escape from this common anti pattern is to introduce a mediating entity, to translate between two partially incompatible demands and concerns: Sure, the &quot;tangible stuff&quot; is what matters, but you can not build any significant piece of technology if all you want is to &quot;serve&quot; the user.
 
@@ -3267,7 +3267,11 @@ According {{red{to the current plan (2018)}}}, the GuiModel will not be a dedica
 While most actual details are abstracted away by this approach, it can be expected that the handling of typical diff changes is somewhat similar in most actual widgets. For this reason we provide a selection of generic adapters and building blocks to simplify the assembly of actual widget implementations.
 
 !!!expanding and collapsing
-Several UI elements offer the ability to be collapsed into a minimal representation to save screen real estate. The UI-Element protocol defines this to happen either by invoking a dedicated signal slot on the element, or by sending an appropriate message over the UI-Bus. The actual implementation is quite simple, but unfortunately requires knowledge regarding the specific widget configuration. A commonly used approach is to wrap the expandable/collapsible element into a {{{Gtk::Expandable}}}, but there are notable exceptions, where the widget is bound to handle the expanding or reducing of information display all by itself. We bridge this discrepancy by introducing an {{{Expander}}} interface to act as adapter. 
+Several UI elements offer the ability to be collapsed into a minimal representation to save screen real estate. The UI-Element protocol defines this to happen either by invoking a dedicated signal slot on the element, or by sending an appropriate message over the UI-Bus. The actual implementation is quite simple, but unfortunately requires knowledge regarding the specific widget configuration. A commonly used approach is to wrap the expandable/collapsible element into a {{{Gtk::Expandable}}}, but there are notable exceptions, where the widget is bound to handle the expanding or reducing of information display all by itself. We bridge this discrepancy by introducing an {{{Expander}}} interface to act as adapter.
+* the default implementation holds an {{{Expander}}} functor. In default state, this functor as well as expanding / collapsing functionality remains disabled
+* to enable it, two lambdas need to be provided, to configure
+** how to find out about the expansion state of the widget
+** how to change this expansion state (i.e. how to expand or collapse the widget)
 
 !!!revealing an element
 The UI-Element protocol also includes the ability to //reveal an element// -- which means actively to bring this element into sight, in case it is hidden, collapsed or obscured by scrolling away.
@@ -3465,7 +3469,7 @@ In the most general case, there can be per-track content and nested content at t
 &amp;rarr; important question: how to [[organise the widgets|GuiTimelineWidgetStructure]]
 </pre>
 </div>
-<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201611280229" tags="GuiPattern discuss decision impl" changecount="85">
+<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201808311806" tags="GuiPattern discuss decision impl" changecount="86">
 <pre>The Timeline is probably the most prominent place in the GUI where we need to come up with a custom UI design.
 Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also means to write one or several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 Gui, as implemented currently, did already take some steps along this route, yet this kind of decision should be cast and documented explicitly (be it after the fact).
 
@@ -3474,7 +3478,7 @@ Right away, this topic touches a tricky design and architectural challenge: the
 In a nutshell, ~GTKmm offers several degrees of customisation, namely to build a custom widget class, to build a custom container widget, and to use the [[Gtk::Layout &quot;canvas widget&quot;|GtkLayoutWidget]], possibly combined with //custom drawing.// In addition to assembling a timeline widget class by combining several nested panes, the timeline display needs to rely on the latter approach to allow for the necessary flexible arrangement of [[clip widgets|GuiClipWidget]] within the [[track fork|Fork]].
 
 !the header pane problem
-From general considerations we draw the conclusion to have an track header pane area always visible to the left. For one this means that our top level widget organisation in the timeline will be a horizontal split. And then this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, it is likely the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part, the actual track contents impose very specific layout constraints not served by any of the pre-existing layout containers, which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
+From general considerations we draw the conclusion to have a track header pane area always visible to the left. For one this means that our top level widget organisation in the timeline will be a horizontal split. And then this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, it is likely the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part, the actual track contents impose very specific layout constraints not served by any of the pre-existing layout containers, which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
 
 !!!considering a table grid layout
 The layout mechanics we try to establish here by explicit implementation would be more or less a given, if instead we'd build the whole timeline display from one base widget, which needs to be a table layout, i.e. {{{Gtk::Grid}}}. We'd use two columns, one for the header pane area, one for the timeline display, and we'd use N+1 rows, with the head row holding the time ruler and the additional rows holding individual tracks. But to get the specific UI mechanics desirable for a timeline display, we had to introduce some twists:
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 92feff65a..31decc366 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1929,18 +1929,24 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1535726072346" TEXT="default-Impl doExpand()">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726077504" ID="ID_1806068721" MODIFIED="1535726084288" TEXT="pr&#xfc;fen: canExpand">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1535743677411" TEXT="default-Impl doExpand()">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535726077504" ID="ID_1806068721" MODIFIED="1535743682618" TEXT="pr&#xfc;fen: canExpand">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726086631" ID="ID_1753268128" MODIFIED="1535726090655" TEXT="Expander aufrufen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535726086631" ID="ID_1753268128" MODIFIED="1535743684443" TEXT="Expander aufrufen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535743810027" ID="ID_778321095" MODIFIED="1535743836008" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535725936028" TEXT="Expander geeignet verdrahten">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535725949205" TEXT="validiert das Design"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743705113" ID="ID_54369760" MODIFIED="1535743721369" TEXT="auch MockElm anpassen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1535737905991" TEXT="Unit-Test">
 <icon BUILTIN="flag-yellow"/>
@@ -2009,6 +2015,9 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1535726058196" TEXT="Revealer aufrufen">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743810027" ID="ID_1786165843" MODIFIED="1535743829532" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1535725975155" TEXT="braucht Parent-Link">
 <icon BUILTIN="button_cancel"/>
@@ -2018,6 +2027,12 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535725997876" TEXT="Revealer geeignet verdrahten">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743705113" ID="ID_267884906" MODIFIED="1535743721369" TEXT="auch MockElm anpassen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743754227" ID="ID_1964115972" MODIFIED="1535743768498" TEXT="doReveal(ID) API entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1535737923428" TEXT="Unit-Test: AbtractTangible_test erweitern">
 <icon BUILTIN="flag-yellow"/>

From 3f327b335a1fbd58c61ed8045a10ba9d7fa4e79c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 22:15:57 +0200
Subject: [PATCH 040/178] UiElement: switch MockElement to rely on the new
 functor based default impl

...which is implicit verified through AbstractTangible_test::markState()
---
 tests/gui/test/mock-elm.hpp | 15 ++++++++-------
 wiki/thinkPad.ichthyo.mm    | 18 +++++++++++++-----
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/tests/gui/test/mock-elm.hpp b/tests/gui/test/mock-elm.hpp
index 7489534bb..b0cec0865 100644
--- a/tests/gui/test/mock-elm.hpp
+++ b/tests/gui/test/mock-elm.hpp
@@ -142,13 +142,7 @@ namespace test{
       doExpand (bool yes)  override
         {
           log_.call(this->identify(), "expand", yes);
-          if (expanded_ == yes)
-            return false; // nothing to change
-          
-          virgin_ = false;
-          expanded_ = yes;
-          log_.event (expanded_? "expanded" : "collapsed");
-          return true; // record a state change
+          return Tangible::doExpand (yes);
         }
       
       virtual void
@@ -317,6 +311,13 @@ namespace test{
         {
           log_.call (this->identify(), "ctor", identity, string(nexus));
           log_.create (getID().getSym());
+          installExpander ([&](){ return this->expanded_; }
+                          ,[&](bool yes)
+                                {
+                                  virgin_ = false;
+                                  expanded_ = yes;
+                                  log_.event (expanded_? "expanded" : "collapsed");
+                                });
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 31decc366..7a744cd16 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1943,13 +1943,21 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535725936028" TEXT="Expander geeignet verdrahten">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535725949205" TEXT="validiert das Design"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743705113" ID="ID_54369760" MODIFIED="1535743721369" TEXT="auch MockElm anpassen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535750016792" TEXT="validiert das Design">
+<icon BUILTIN="yes"/>
+</node>
+<node COLOR="#338800" CREATED="1535743705113" ID="ID_54369760" MODIFIED="1535749999498" TEXT="auch MockElm anpassen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1535737905991" TEXT="Unit-Test">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1535750031727" TEXT="Unit-Test">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535750033829" ID="ID_1808097547" MODIFIED="1535750109787" TEXT="AbstractTangible_test::markState()">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1535750110787" ID="ID_1169665466" MODIFIED="1535750125766" TEXT="tested implizit die neue default-Implementierung mit">
+<icon BUILTIN="idea"/>
+</node>
 </node>
 </node>
 </node>

From 41e04965769f3b38d779fa7f3661b649d093cdd6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 22:55:23 +0200
Subject: [PATCH 041/178] NotificationDisplay: now able to build the expand
 functionality

...by delegating to an Expander placed into the ErrorLogDisplay widget
---
 src/gui/ctrl/notification-hub.hpp    | 19 +++++++------
 src/gui/model/tangible.cpp           |  5 +++-
 src/gui/panel/infobox-panel.cpp      |  9 ++++++-
 src/gui/widget/error-log-display.hpp | 10 +++----
 wiki/thinkPad.ichthyo.mm             | 40 ++++++++++++++++------------
 5 files changed, 47 insertions(+), 36 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 7726bbe18..3c75f17f9 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -117,15 +117,6 @@ namespace ctrl {
           return true;
         }
       
-      virtual bool
-      doExpand (bool yes)  override
-        {
-          if (widget_ or yes)
-             if (getWidget().expand (yes))
-               uiBus_.note (GenNode("expand", yes));
-          return false; // state persisted if necessary
-        }
-      
       virtual void
       doRevealYourself()  override
         {
@@ -180,7 +171,15 @@ namespace ctrl {
         : model::Controller{identity, nexus}
         , allocateWidget_{wa}
         , widget_{}
-        { }
+        {
+          installExpander([&](){ return widget_ and widget_->expand; }
+                         ,[&](bool yes)
+                               {
+                                 if (widget_ or yes)
+                                   getWidget().expand (yes);
+                               }
+                         );
+        }
       
      ~NotificationHub() { };
       
diff --git a/src/gui/model/tangible.cpp b/src/gui/model/tangible.cpp
index f435174b0..581912e7a 100644
--- a/src/gui/model/tangible.cpp
+++ b/src/gui/model/tangible.cpp
@@ -262,7 +262,10 @@ namespace model {
   Tangible::doMark (GenNode const& stateMark)
   {
     if (stateMark.idi.getSym() == "expand")
-      this->doExpand (stateMark.data.get<bool>());
+      {
+        if (this->doExpand (stateMark.data.get<bool>()))
+          uiBus_.note (GenNode("expand", true));    // possibly reentrant (yet harmless)
+      }
     else
     if (stateMark.idi.getSym() == "reset")
       this->reset();
diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index a0980b279..2c8d86996 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -81,7 +81,11 @@ namespace panel{
   
   /** on demand allocate display of information / error log
    * @note we assume it stays alive forever, once allocated
-   * @todo add possibility to collapse it
+   * @remark the ErrorLogDisplay widget exposes a \ref Expander functor,
+   *         which is wired here with the Gtk::Expander container holding the Log.
+   *         This setup allows to trigger the expand/collapse functionality and
+   *         query the expansion state directly on the widget. Especially
+   *         \ref NotificationHub relies on this configuration.
    */
   ErrorLogDisplay&
   InfoBoxPanel::getLog()
@@ -91,6 +95,9 @@ namespace panel{
         theLog_.reset (new ErrorLogDisplay{});
         logExpander_.set_expanded (false);
         logExpander_.add (*theLog_);
+        theLog_->expand = model::Expander{[&]()         { return logExpander_.get_expanded(); }
+                                         ,[&](bool yes) { logExpander_.set_expanded (yes); }
+                                         };
         frame_.set_border_width (5);
         frame_.add (logExpander_);
         frame_.show_all();
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 66c431d0a..376ceea2f 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -57,6 +57,7 @@
 #define GUI_WIDGET_ERROR_LOG_DISPLAY_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/model/expander-revealer.hpp"
 #include "include/gui-notification-facade.h"
 
 //#include "lib/util.hpp"
@@ -96,6 +97,8 @@ namespace widget {
           textLog_.set_editable (false);
         }
       
+      model::Expander expand;
+      
       
       void
       showMsg (NotifyLevel severity, string const& text)
@@ -114,13 +117,6 @@ namespace widget {
           }
         }
       
-      bool
-      expand (bool yes)
-        {
-          UNIMPLEMENTED ("Maintain expansion state, build a collapsed representation.");
-          return false; //////TODO true if state change happened; this makes the state persistent
-        }
-      
       void
       clearAll()
         {
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7a744cd16..8ae6c0337 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1741,10 +1741,10 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1533402997076" TEXT="Fehler-Level erkennen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1534725208028" TEXT="Operationen">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1534725415160" TEXT="expand">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1535752292770" TEXT="Operationen">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1535752255561" TEXT="expand">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1535631557024" TEXT="collapsed-Repr&#xe4;sentation schaffen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535554610295" ID="ID_1050608842" MODIFIED="1535554619117" TEXT="nur vorl&#xe4;ufige L&#xf6;sung">
@@ -1779,7 +1779,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535737885653" TEXT="essentiell: passiert im Parent-Widget">
+<node COLOR="#435e98" CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535752092225" TEXT="essentiell: passiert im Parent-Widget">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1789,7 +1789,7 @@
     <p>der Parent-Container ist f&#252;r das expand/collapse zust&#228;ndig</p>
   </body>
 </html></richcontent>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535731317069" TEXT="Design-Problem: sich expandieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1535634126600" TEXT="Voraussetzung: unser Widget-Protokoll">
@@ -1941,8 +1941,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535725936028" TEXT="Expander geeignet verdrahten">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535752076020" TEXT="Expander geeignet verdrahten">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535750016792" TEXT="validiert das Design">
 <icon BUILTIN="yes"/>
 </node>
@@ -2441,19 +2441,19 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1534725765116" TEXT="Controller-Interface">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534725759893" TEXT="doReset()">
-<icon BUILTIN="pencil"/>
-<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1534120202934" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
-<icon BUILTIN="info"/>
-</node>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1534725759894" TEXT="doExpand(yes)">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1535752367109" TEXT="Expander">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1534120202934" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
 <icon BUILTIN="info"/>
 </node>
+<node COLOR="#338800" CREATED="1535752333217" ID="ID_332486075" MODIFIED="1535752360062" TEXT="geeignet verdrahten f&#xfc;r Delegation">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1534725759894" TEXT="doRevealYourself()">
+<node COLOR="#338800" CREATED="1535752347574" ID="ID_883461261" MODIFIED="1535752358566" TEXT="Expander im ErrorLog widget verwenden">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1535752377006" TEXT="doRevealYourself()">
 <icon BUILTIN="pencil"/>
 <node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1534120253931">
 <richcontent TYPE="NODE"><html>
@@ -2471,6 +2471,12 @@
 </html></richcontent>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534725759893" TEXT="doReset()">
+<icon BUILTIN="pencil"/>
+<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1534120202934" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
+<icon BUILTIN="info"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534725759894" TEXT="doMsg(text)">
 <icon BUILTIN="pencil"/>
 <node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1534120202934" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">

From 026049a13c2cfbb634dad9342cd1d62c55ba412b Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 31 Aug 2018 23:42:55 +0200
Subject: [PATCH 042/178] UiElement: likewise integrate the Revealer functor
 (#1162)

---
 src/gui/ctrl/notification-hub.hpp |  7 +-----
 src/gui/model/controller.hpp      | 12 ----------
 src/gui/model/tangible.cpp        | 37 ++++++++++++++++++++++--------
 src/gui/model/tangible.hpp        | 21 +++++++++++++----
 src/gui/model/widget.hpp          | 12 ----------
 tests/gui/test/mock-elm.hpp       |  9 ++------
 wiki/renderengine.html            |  4 ++--
 wiki/thinkPad.ichthyo.mm          | 38 +++++++++++++++----------------
 8 files changed, 69 insertions(+), 71 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 3c75f17f9..638e6bc90 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -117,12 +117,6 @@ namespace ctrl {
           return true;
         }
       
-      virtual void
-      doRevealYourself()  override
-        {
-          getWidget().revealYourself(); // implies also expand
-        }
-      
       virtual bool
       doMsg (string text)  override
         {
@@ -179,6 +173,7 @@ namespace ctrl {
                                    getWidget().expand (yes);
                                }
                          );
+          installRevealer([&](){ getWidget().revealYourself(); }); // implementation implies also expand
         }
       
      ~NotificationHub() { };
diff --git a/src/gui/model/controller.hpp b/src/gui/model/controller.hpp
index f44df49d0..802c47d44 100644
--- a/src/gui/model/controller.hpp
+++ b/src/gui/model/controller.hpp
@@ -70,18 +70,6 @@ namespace model {
           UNIMPLEMENTED ("Controller reset");
         }
       
-      virtual void
-      doReveal (ID child)  override
-        {
-          UNIMPLEMENTED ("Controller doReveal");
-        }
-      
-      virtual void
-      doRevealYourself()  override
-        {
-          UNIMPLEMENTED ("Controller doRevealYourself");
-        }
-      
       virtual bool
       doMsg (string text)  override
         {
diff --git a/src/gui/model/tangible.cpp b/src/gui/model/tangible.cpp
index 581912e7a..dc6e95d39 100644
--- a/src/gui/model/tangible.cpp
+++ b/src/gui/model/tangible.cpp
@@ -189,22 +189,41 @@ namespace model {
   
   
   /**
-   * @todo 12/2015 not clear yet what needs to be done
-   * @remarks the intention is to request the given child
-   *          to be brought into sight. We need to set up some kind
-   *          of children registration, but better not do this in
-   *          a completely generic fashion, for danger of overengineering.
-   *          Moreover, it is not clear yet, who will issue this request
-   *          and at which element the initial request can/will be targeted.
+   * Cause the element to be brought into sight.
+   * This is a generic Slot to connect UI signals against;
+   * the same action can also be triggered by sending a **mark**
+   * message over the UI-Bus with the symbol "`revealYourself`".
+   * @note this is an optional feature and requires the actual widget or controller
+   *       either to override the ::doRevealYourself() extension point, or to
+   *       [install a suitable closure](\ref installRevealer()). Typically this
+   *       is not in itself a persistent state change; however, it might incur
+   *       expanding some widgets, which is recorded as persistent UI state.
+   * @remarks the intention is to make a specific element visible, e.g. to reveal
+   *       the effect of some operation, or to mark a serious error condition.
+   *       Implementing this is by no means trivial, since it involves the
+   *       possibly recursive collaboration with enclosing container widgets,
+   *       and maybe even to scroll to a given canvas position.
    */
   void
-  Tangible::slotReveal(ID child)
+  Tangible::slotReveal()
   {
-    this->doReveal(child);
     this->doRevealYourself();
   }
   
   
+  /**
+   * generic default implementation of the "reveal" functionality.
+   * Based on the #reveal_ functor, which needs to be [configured](\ref installRevealer())
+   * explicitly to enable this functionality.
+   */
+  void
+  Tangible::doRevealYourself()
+  {
+    if (reveal_.canReveal())
+      reveal_();
+  }
+  
+  
   
   /**
    * Perform a command or action, once the execution context has been established.
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index 137e9ea3e..170d14e62 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -202,8 +202,7 @@ namespace model {
       
       void slotExpand();
       void slotCollapse();
-      
-      void slotReveal(ID child);
+      void slotReveal();
       
       void markFlash();
       void markMsg (string message);
@@ -211,14 +210,14 @@ namespace model {
       void mark(GenNode const&);
       
       void installExpander (Expander::ProbeFun, Expander::ChangeFun);
+      void installRevealer (Revealer::RevealeItFun);
       
     protected:
       virtual bool doReset()           =0;
       virtual bool doClearMsg()        =0;
       virtual bool doClearErr()        =0;
       virtual bool doExpand (bool yes);
-      virtual void doReveal (ID child) =0;
-      virtual void doRevealYourself () =0;
+      virtual void doRevealYourself();
       
       virtual bool doMsg (string)          =0;
       virtual bool doErr (string)          =0;
@@ -269,6 +268,20 @@ namespace model {
   {
     expand_ = Expander{move (detectCurrExpansionState), move (howto_expand_collapse)};
   }
+  
+  
+  /**
+   * Configure the (optional) functionality to bring the UI-Element into sight.
+   * @param how_to_uncover_the_element a lambda or function<void()> to actually cause the necessary actions.
+   * @note unless this setup function is invoked, the "`revealYourself`" functionality remains disabled.
+   *       Typically this setup will be done by an owning parent container, binding to some internals
+   *       and also recursively invoking the "`revealYourself`" action on the container.
+   */
+  inline void
+  Tangible::installRevealer (Revealer::RevealeItFun how_to_uncover_the_element)
+  {
+    reveal_ = Revealer{move (how_to_uncover_the_element)};
+  }
 
   
   
diff --git a/src/gui/model/widget.hpp b/src/gui/model/widget.hpp
index d5b303725..2abfa875e 100644
--- a/src/gui/model/widget.hpp
+++ b/src/gui/model/widget.hpp
@@ -67,18 +67,6 @@ namespace model {
           UNIMPLEMENTED ("Widget reset");
         }
       
-      virtual void
-      doReveal (ID child)  override
-        {
-          UNIMPLEMENTED ("Widget doReveal");
-        }
-      
-      virtual void
-      doRevealYourself()  override
-        {
-          UNIMPLEMENTED ("Widget doRevealYourself");
-        }
-      
       virtual bool
       doMsg (string text)  override
         {
diff --git a/tests/gui/test/mock-elm.hpp b/tests/gui/test/mock-elm.hpp
index b0cec0865..132fe7ddc 100644
--- a/tests/gui/test/mock-elm.hpp
+++ b/tests/gui/test/mock-elm.hpp
@@ -145,16 +145,11 @@ namespace test{
           return Tangible::doExpand (yes);
         }
       
-      virtual void
-      doReveal (ID child)  override
-        {
-          UNIMPLEMENTED ("mock doReveal");
-        }
-      
       virtual void
       doRevealYourself()  override
         {
-          UNIMPLEMENTED ("mock doRevealYourself");
+          log_.call(this->identify(), "revealYourself");
+          Tangible::doRevealYourself();  // NOTE: without specific configuration this is NOP
         }
       
       virtual bool
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index af92192b7..9a14cf2a4 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -3241,7 +3241,7 @@ More specifically, the integration is based on ''messaging''. To start with, the
 ----
 In a preliminary attempt to establish an integration between the GUI and the lower layers, in 1/2009 we created an PlayerDummy, which &quot;pulls&quot; dummy frames from the (not yet existing) engine and displays them within an XV viewer widget. This highlighted the problems we're about to encounter and made us think about the more radically decoupled approach we followed thereafter...</pre>
 </div>
-<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808311937" tags="GuiIntegration design draft" changecount="23">
+<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808312301" tags="GuiIntegration design draft" changecount="24">
 <pre>Building a layered architecture is a challenge, since the lower layer //really// needs to be self-contained, while prepared for usage by the higher layer.
 A major fraction of all desktop applications is written in a way where operational logic is built around the invocation from UI events -- what should be a shell turns into a backbone. One possible way to escape from this common anti pattern is to introduce a mediating entity, to translate between two partially incompatible demands and concerns: Sure, the &quot;tangible stuff&quot; is what matters, but you can not build any significant piece of technology if all you want is to &quot;serve&quot; the user.
 
@@ -3275,7 +3275,7 @@ Several UI elements offer the ability to be collapsed into a minimal representat
 
 !!!revealing an element
 The UI-Element protocol also includes the ability to //reveal an element// -- which means actively to bring this element into sight, in case it is hidden, collapsed or obscured by scrolling away.
-{{red{As of 8/2018 this is just an idea}}}, and many details still need to be considered. Yet at least one point is clear: implementing such a feature requires the help of the container widget actually holding the element to be revealed. It might even happen that also the collaboration of the container holding aforementioned immediate parent container is necessary -- indicating a recursive implementation scheme.
+{{red{As of 8/2018 this is just an idea}}}, and many details still need to be considered. Yet at least one point is clear: implementing such a feature requires the help of the container widget actually holding the element to be revealed. It might even happen that also the collaboration of the container holding aforementioned immediate parent container is necessary -- indicating a recursive implementation scheme. The default implementation is based on a similar scheme as the expand/collapse functionality: here we embed a {{{Revealer}}} functor, which then needs to be outfitted with a lambda binding into the internals of the parent container to effect the necessary presentation changes.
 </pre>
 </div>
 <div title="GuiModelElements" creator="Ichthyostega" modifier="Ichthyostega" created="201501061138" modified="201703170201" tags="GuiIntegration design draft img" changecount="47">
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 8ae6c0337..6ffe5f950 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2009,22 +2009,19 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1534722142986" TEXT="revealYourself">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1535756110798" TEXT="revealYourself">
 <linktarget COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1535726030336" TEXT="default-Impl doReveal()">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1535726044126" TEXT="pr&#xfc;fen canReveal">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1535756045754" TEXT="default-Impl doReveal()">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1535756048350" TEXT="pr&#xfc;fen canReveal">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722040354" ID="ID_633013" MODIFIED="1534722061920" TEXT="eigennen show/hide-Status erkennen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1535756052676" TEXT="Revealer aufrufen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1535726058196" TEXT="Revealer aufrufen">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743810027" ID="ID_1786165843" MODIFIED="1535743829532" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535743810027" ID="ID_1786165843" MODIFIED="1535756056057" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1535725975155" TEXT="braucht Parent-Link">
@@ -2033,18 +2030,21 @@
 <node CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1535725979353" TEXT="parent.reveal(this)">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535725997876" TEXT="Revealer geeignet verdrahten">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743705113" ID="ID_267884906" MODIFIED="1535743721369" TEXT="auch MockElm anpassen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535756066541" TEXT="Revealer geeignet verdrahten">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535743705113" ID="ID_267884906" MODIFIED="1535756061190" TEXT="auch MockElm anpassen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535743754227" ID="ID_1964115972" MODIFIED="1535743768498" TEXT="doReveal(ID) API entfernen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535743754227" ID="ID_1964115972" MODIFIED="1535756064674" TEXT="doReveal(ID) API entfernen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1535737923428" TEXT="Unit-Test: AbtractTangible_test erweitern">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1535756101199" TEXT="konkret was machen, damit man die Funktion sehen kann">
+<icon BUILTIN="flag-pink"/>
+</node>
 </node>
 </node>
 </node>

From 1ab42b298d66c095a9085de60fe2203d370ff9fa Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 1 Sep 2018 15:42:36 +0200
Subject: [PATCH 043/178] UiElement: add unit test to cover the
 doRevealYourself functionality

...which is now kind-of specified and we're providing a default implementation,
so it should be documented in AbstractTangible_test
---
 tests/gui/abstract-tangible-test.cpp | 83 ++++++++++++++++++++++++++--
 1 file changed, 77 insertions(+), 6 deletions(-)

diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 7e1f178dd..735b14c18 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -179,8 +179,9 @@ namespace test {
           verify_mockManipulation();
           invokeCommand();
           markState();
-          notify();
-          mutate();
+          revealer();
+//          notify();
+//          mutate();
         }
       
       
@@ -362,10 +363,6 @@ namespace test {
        * 
        * The second part of this test _replays_ such a state mark, which causes
        * the`doMark()` operation on the UI element to be invoked.
-       * @todo maybe we'll even provide a default implementation for expand/collapse
-       *       which then means that, by replaying the mentioned state marks, the
-       *       `doExpand()` or `doCollapse()` should be re-invoked, of course
-       *       without issuing a further notification
        * @note this test does not cover or even emulate the operation of the
        *       "state manager", since the goal is to cover the _UI element_
        *       protocol. We'll just listen at the bus and replay messages.
@@ -473,6 +470,80 @@ namespace test {
         }
       
       
+      /** @test configure a handler for the (optional) "revealYourself" functionality.
+       * We install a lambda to supply the actual implementation action, which can then
+       * either be triggered by a signal/slot invocation, or by sending a "state mark".
+       */
+      void
+      revealer ()
+        {
+          MARK_TEST_FUN
+          EventLog nexusLog = gui::test::Nexus::startNewLog();
+          
+          MockElm mock("target");
+          ID targetID = mock.getID();
+          
+          sigc::signal<void> trigger_reveal;
+          trigger_reveal.connect   (sigc::mem_fun(mock, &Tangible::slotReveal));
+          
+          CHECK (not mock.isTouched());
+          CHECK (not mock.isExpanded());
+          CHECK (mock.ensureNot("reveal"));
+          CHECK (mock.ensureNot("expanded"));
+          CHECK (nexusLog.ensureNot("state-mark"));
+          
+          bool revealed = false;
+          mock.installRevealer([&]()
+                                  {                        // NOTE: our mock "implementation" of the revealYourself functionality
+                                    mock.slotExpand();     //       explicitly prompts the element to expand itself,
+                                    revealed = true;       //       and then via closure sets a flag we can verify.
+                                  });
+          
+          trigger_reveal();
+          
+          CHECK (true == revealed);
+          CHECK (mock.isExpanded());
+          CHECK (mock.verifyEvent("create","target")
+                     .beforeCall("revealYourself")
+                     .beforeCall("expand").arg(true)
+                     .beforeEvent("expanded"));
+          
+          // invoking the slotExpand() also emitted a state mark to persist that expansion state...
+          CHECK (nexusLog.verifyCall("note").arg(targetID, GenNode{"expand", true})
+                         .before("handling state-mark"));
+          
+          
+          // second test: the same can be achieved via UI-Bus message...
+          revealed = false;
+          auto stateMark = GenNode{"revealYourself", 47};  // (payload argument irrelevant)
+          auto& uiBus = gui::test::Nexus::testUI();
+          CHECK (nexusLog.ensureNot("revealYourself"));
+          
+          uiBus.mark (targetID, stateMark);                // send the state mark message to reveal the element
+          
+          CHECK (true == revealed);
+          CHECK (mock.verifyMark("revealYourself", 47)
+                     .afterEvent("expanded")
+                     .beforeCall("revealYourself")
+                     .beforeCall("expand").arg(true));
+          
+          CHECK (nexusLog.verifyCall("mark").arg(targetID, stateMark)
+                         .after("handling state-mark")
+                         .before("revealYourself")
+                         .beforeEvent("delivered mark"));
+          
+          
+          
+          cout << "____Event-Log_________________\n"
+               << util::join(mock.getLog(), "\n")
+               << "\n───╼━━━━━━━━━╾────────────────"<<endl;
+          
+          cout << "____Nexus-Log_________________\n"
+               << util::join(nexusLog, "\n")
+               << "\n───╼━━━━━━━━━╾────────────────"<<endl;
+        }
+      
+      
       /** @test receive various kinds of notifications.
        * Send message, error and flash messages via Bus to the element
        * and verify the doMsg, doErr or doFlash handlers were invoked.

From 2520ee82d13cb78248efb8d798f9ac9b05ca99ed Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 1 Sep 2018 17:30:20 +0200
Subject: [PATCH 044/178] EventLog: investigate failed match in EventLog

seemingly my quick-n-dirty implementation was to naiive.
We need real backtracking, if we want to support switches
in the search direction (match("y").after("x").before("z")

Up to now, I have cheated myself around this obvious problem :-/
---
 src/lib/test/event-log.hpp                 | 10 ++--
 tests/gui/abstract-tangible-test.cpp       |  7 +++
 tests/library/test/test-event-log-test.cpp |  3 ++
 wiki/thinkPad.ichthyo.mm                   | 57 ++++++++++------------
 4 files changed, 44 insertions(+), 33 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 8e63f37e3..443d8802d 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -111,7 +111,7 @@ namespace test{
       bool
       foundSolution()
         {
-          return !isnil (solution_);
+          return not isnil (solution_);
         }
       
       /** this is actually called after each refinement of
@@ -129,7 +129,7 @@ namespace test{
           if (look_for_match_ and not isnil (violation_)) return;
              // already failed, no further check necessary
           
-          if (foundSolution())
+          if (foundSolution()) // NOTE this pulls the filter
             {
               lastMatch_ = matchSpec+" @ "+string(*solution_)
                          + (isnil(lastMatch_)? ""
@@ -898,10 +898,14 @@ namespace test{
           return matcher;
         }
       
-      /** start a query to ensure the given expression does \em not match.
+      /** start a query to ensure the given expression does _not_ match.
        * @remarks the query expression is built similar to the other queries,
        *          but the logic of evaluation is flipped: whenever we find any match
        *          the overall result (when evaluating to `bool`) will be `false`.
+       * @warning this is not an proper exhaustive negation, since the implementation
+       *          does not proper backtracking with a stack of choices. This becomes
+       *          evident, when you combine `ensureNot()` with a switch in search
+       *          direction, like e.g. using `afterXXX` at some point in the chain.
        */
       EventMatch
       ensureNot (string match)  const
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 735b14c18..29a42bfe0 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -532,6 +532,13 @@ namespace test {
                          .before("revealYourself")
                          .beforeEvent("delivered mark"));
           
+          // Note the fine point: the target element /was/ already expanded
+          // and thus there is no second "expanded" event, nor is there a
+          // second state mark emitted into the UI-Bus...
+          CHECK (mock.ensureNot("expand")
+//                     .afterCall("revealYourself")
+                     .afterEvent("expanded"));
+          
           
           
           cout << "____Event-Log_________________\n"
diff --git a/tests/library/test/test-event-log-test.cpp b/tests/library/test/test-event-log-test.cpp
index 18ac7c2ac..c6ad29d90 100644
--- a/tests/library/test/test-event-log-test.cpp
+++ b/tests/library/test/test-event-log-test.cpp
@@ -108,6 +108,9 @@ namespace test{
           CHECK (log.verify("ham").after("spam").after("beans"));
           CHECK (log.verify("ham").after("beans").before("spam").before("ham"));
           CHECK (not log.verify("spam").after("beans").after("ham"));
+          
+          log.event("beans");
+          CHECK (log.verify("beans").after("spam"));
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 6ffe5f950..f49937dbd 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1818,8 +1818,7 @@
       ...der das <i>eigentliche</i>&#160;Widget expandieren kann
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535636621140" ID="ID_1785708787" MODIFIED="1535636640069" TEXT="pro">
 <node CREATED="1535636644385" ID="ID_976356089" MODIFIED="1535636649884" TEXT="elegantes Design"/>
@@ -1836,8 +1835,7 @@
       ggfs m&#252;ssen alle anderen Funktionen nach unten delegieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535636755202" ID="ID_507299995" MODIFIED="1535636897708" TEXT="kann grunds&#xe4;tzlich nicht alle F&#xe4;lle abdecken">
 <richcontent TYPE="NOTE"><html>
@@ -1861,8 +1859,7 @@
       Standard-Beispiel: Property-Panel
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1535636904118" ID="ID_489559609" MODIFIED="1535636933948" TEXT="Fazit">
@@ -1892,8 +1889,7 @@
       ...wenn wir eine Mix-in -Implementierung w&#228;hlen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
@@ -2041,6 +2037,10 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1535737923428" TEXT="Unit-Test: AbtractTangible_test erweitern">
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815055702" ID="ID_493114230" MODIFIED="1535815475299" TEXT="EventLog: Problem mit Backtracking">
+<arrowlink COLOR="#ba8096" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" STARTARROW="None" STARTINCLINATION="838;114;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1535756101199" TEXT="konkret was machen, damit man die Funktion sehen kann">
 <icon BUILTIN="flag-pink"/>
@@ -2149,7 +2149,7 @@
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1534728946122" TEXT="mit close-signal verdrahten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1535814842908" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="stop-sign"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
 <icon BUILTIN="broken-line"/>
@@ -2327,7 +2327,7 @@
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1534636462287" ID="ID_1581893176" MODIFIED="1534721195248" TEXT="eigenes SigC Signal bereitstellen"/>
-<node CREATED="1534636486123" ID="ID_1855036791" MODIFIED="1534721209774" TEXT="w&#xfc;rde vom EventLog-dtor aufgerufen"/>
+<node CREATED="1534636486123" ID="ID_1855036791" MODIFIED="1535814840374" TEXT="w&#xfc;rde vom ErrorLog-dtor aufgerufen"/>
 <node CREATED="1534721236063" ID="ID_1398832202" MODIFIED="1534721247336" TEXT="das w&#xe4;re eine private Konvention">
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -2356,8 +2356,7 @@
       oder sie pr&#252;fen den Zustand und machen nichts, wenn das Widget nicht da ist
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
@@ -18634,8 +18633,7 @@
       <i>nicht</i>&#160;bool-Testbar
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18663,8 +18661,7 @@
       wenn es nicht sichtbar ist. Denn Sichtbarkeit geh&#246;rt zur UI-Mechanik und geht den Client nix an
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535725591561" ID="ID_1362809449" MODIFIED="1535725594837" TEXT="canReveal()"/>
 <node CREATED="1535639517897" ID="ID_1175119585" MODIFIED="1535725607419" TEXT="Funktions-Operator(void) == reveal"/>
@@ -18701,8 +18698,7 @@
       denn dann g&#228;be es eine Implementierung &quot;von der Stange&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1535723854290" ID="ID_333598922" MODIFIED="1535723874600" TEXT="f&#xe4;llt aus diesem Thema heraus">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@@ -18728,8 +18724,7 @@
       aber die Operationen sind <i>der Sache nach</i>&#160;nicht symmetrisch
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1535725181176" ID="ID_1947404851" MODIFIED="1535725210681" TEXT="ins Kind verlagert lassen sie sich jedoch symmetrisieren">
@@ -25100,6 +25095,13 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535815195338" ID="ID_1743938908" MODIFIED="1535815207849" TEXT="naive Implementierung">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815210288" ID="ID_1041148737" MODIFIED="1535815475299" TEXT="Problem: kein wirkliches Backtracking">
+<linktarget COLOR="#ba8096" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" SOURCE="ID_493114230" STARTARROW="None" STARTINCLINATION="838;114;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485548830035" HGAP="5" ID="ID_1295711115" MODIFIED="1518487921090" TEXT="Nutzen" VSHIFT="17">
@@ -34410,8 +34412,7 @@
       sofern das Widget mit entsprechendem Modus eingef&#252;gt wurde
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535629439847" ID="ID_1925784750" MODIFIED="1535630246025" TEXT="Widget dehnt sich aus, um verf&#xfc;gbaren Platz einzunehmen">
 <icon BUILTIN="info"/>
@@ -35130,8 +35131,7 @@
       Gtk::<b>Expander</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <edge COLOR="#b4a9e3" STYLE="bezier" WIDTH="thin"/>
 <linktarget COLOR="#4561ae" DESTINATION="ID_1889724128" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_219393455" SOURCE="ID_1047933726" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <font NAME="SansSerif" SIZE="12"/>
@@ -35152,8 +35152,7 @@
       ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1535631341839" TEXT="expanded (=false by default)">
 <richcontent TYPE="NOTE"><html>
@@ -35165,8 +35164,7 @@
       ob eingeklappt oder ausgeklappt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535631368701" ID="ID_1441730618" MODIFIED="1535631388301" TEXT="platziert Kind-Widget as-is">
 <icon BUILTIN="messagebox_warning"/>
@@ -35184,8 +35182,7 @@
       was dazu f&#252;hrt, da&#223; das Kind stets allen verf&#252;gbaren Platz nimmt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>

From 3fc5a94b87005fe02bd79a7004d6de18a4643c4d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 16:01:07 +0200
Subject: [PATCH 045/178] TreeExplorer: investigate the backtracking abilities

There is a bug or shortcoming in the existing ErrorLog matcher implementation.
It is not really difficult to fix, however doing so would require us to intersperse
yet another helper facility into the log matcher. And it occurred to me, that
this helper would effectively re-implement the stack based backtracking ability,
which is already present in TreeExplorer (and was created precisely to support
this kind of recursive evaluation strategies).

Thus I intend to switch the implementation of the EventLog matcher from the
old IterTool framework to the newer TreeExplorer framework. And this intention
made me re-read the code, fixing several comments and re-thinking the design
---
 src/lib/iter-tree-explorer.hpp            |   6 +-
 tests/library/iter-tree-explorer-test.cpp |  82 +--
 wiki/thinkPad.ichthyo.mm                  | 705 ++++++++++++++++------
 3 files changed, 557 insertions(+), 236 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 6aa6ea8a4..870747646 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -574,7 +574,7 @@ namespace lib {
      * yielding a compatible value type). Now, this _sequence of children_ effectively
      * replaces the expanded source element in the overall resulting sequence; which
      * means, the nested sequence was _flattened_ into the results. Since this expand()
-     * operation can again invoked on the results, the implementation of such an evaluation
+     * operation can again be invoked on the results, the implementation of such an evaluation
      * requires a stack datastructure, so the nested iterator from each expand() invocation
      * can be pushed to become the new active source for iteration. Thus the primary purpose
      * of this Expander (decorator) is to integrate those "nested child iterators" seamlessly
@@ -583,7 +583,7 @@ namespace lib {
      * the source iterator wrapped by this decorator.
      * @remark since we allow a lot of leeway regarding the actual form and definition of the
      *         _expansion functor_, there is a lot of minute technical details, mostly confined
-     *         within the _BoundFunctorTraits.
+     *         within the _BoundFunctor traits.
      * @tparam SRC the wrapped source iterator, typically a TreeExplorer or nested decorator.
      * @tparam FUN the concrete type of the functor passed. Will be dissected to find the signature
      */
@@ -1108,7 +1108,7 @@ namespace lib {
       /* ==== Builder functions ==== */
       
       /** preconfigure this TreeExplorer to allow for _"expansion of children"_.
-       * The resulting iterator exposes an `expand()` function, which consumes
+       * The resulting iterator exposes an `expandChildren()` function, which consumes
        * the current head element of this iterator and feeds it through the
        * _expansion functor_, which was provided to this builder function here.
        * The _expansion functor_ is expected to yield a sequence of "child" elements,
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 3425789c6..02c5d4021 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -218,42 +218,46 @@ namespace test{
   
   /*******************************************************************//**
    * @test use a simple source iterator yielding numbers
-   *       to build various functional evaluation structures,
-   *       based on the \ref IterExplorer template.
-   *       - the [state adapter](\ref verifyStateAdapter() )
-   *          iterator construction pattern
-   *       - helper to [chain iterators](\ref verifyChainedIterators() )
-   *       - building [tree exploring structures](\ref verifyDepthFirstExploration())
-   *       - the [monadic nature](\ref verifyMonadOperator()) of IterExplorer
-   *       - a [recursively self-integrating](\ref verifyRecrusiveSelfIntegration())
-   *         evaluation pattern
+   *       to build various functional evaluation pipelines,
+   *       based on the \ref TreeExplorer template.
+   *       - the adapter to wrap the source, which can either
+   *         [be a "state core"](\ref verify_wrappedState() ), or can
+   *         [be a "Lumiera Forward Iterator"](\ref verify_wrappedIterator() )
+   *       - the defining use case for TreeExplorer is to build a
+   *         [pipeline for depth-first exploration](\ref verify_expandOperation() )
+   *         of a (functional) tree structure. This "tree" is  created by invoking
+   *         a "expand functor", which can be defined in various ways.
+   *       - the usual building blocks for functional evaluation pipelines, that is
+   *         [filtering](\ref verify_FilterIterator() ) and
+   *         [transforming](\ref verify_transformOperation() ) of
+   *         the elements yielded by the wrapped source iterator.
+   *       - building complex pipelines by combining the aforementioned building blocks
+   *       - using an opaque source, hidden behind the IterSource interface, and
+   *         an extension (sub interface) to allow for "tree exploration" without
+   *         any knowledge regarding the concrete implementation of the data source.
    * 
    * ## Explanation
    * 
-   * Both this test and the IterExplorer template might be bewildering
-   * and cryptic, unless you know the *Monad design pattern*. »Monads«
-   * are heavily used in functional programming, actually they originate
-   * from Category Theory. Basically, Monad is a pattern where we combine
-   * several computation steps in a specific way; but instead of intermingling
-   * the individual computation steps and their combination, the goal is to
-   * isolate and separate the _mechanics of combination_, so we can focus on
-   * the actual _computation steps:_ The mechanics of combination are embedded
-   * into the Monad type, which acts as a kind of container, holding some entities
-   * to be processed. The actual processing steps are then attached to the monad as
-   * "function object" parameters. It is up to the monad to decide if, and when
-   * those processing steps are applied to the embedded values and how to combine
-   * the results into a new monad.
+   * These tests build a evaluation pipeline by _wrapping_ some kind of data source
+   * and then layering some evaluation stages on top. There are two motivations why
+   * one might want to build such a _filter pipeline:_
+   * - on demand processing ("pull principle")
+   * - separation of source computation and "evaluation mechanics"
+   *   when building complex search and backtracking algorithms.
    * 
-   * Using the monad pattern is well suited when both the mechanics of
-   * combination and the individual computation steps tend to be complex.
-   * In such a situation, it is beneficial to develop and test both
-   * in isolation. The IterExplorer template applies this pattern
-   * to the task of processing a source sequence. Typically we use
-   * this in situations where we can't afford building elaborate
-   * data structures in (global) memory, but rather strive at
-   * doing everything on-the-fly. A typical example is the
-   * processing of a variably sized data set without
-   * using heap memory for intermediary results.
+   * This usage style is inspired from the *Monad design pattern*. In our case here,
+   * the Iterator pipeline would be the monad, and can be augmented and reshaped by
+   * attaching further processing steps. How those processing steps are to be applied
+   * remains an internal detail, defined by the processing pipeline. »Monads« are heavily
+   * used in functional programming, actually they originate from Category Theory. Basically,
+   * Monad is a pattern where we combine several computation steps in a specific way; but
+   * instead of intermingling the individual computation steps and their combination,
+   * the goal is to isolate and separate the _mechanics of combination_, so we can focus
+   * on the actual _computation steps:_ The mechanics of combination are embedded into the
+   * Monad type, which acts as a kind of container, holding some entities to be processed.
+   * The actual processing steps are then attached to the monad as "function object" parameters.
+   * It is up to the monad to decide if, and when those processing steps are applied to the
+   * embedded values and how to combine the results into a new monad.
    * 
    * @see TreeExplorer
    * @see IterAdapter
@@ -440,7 +444,7 @@ namespace test{
       
       template<class EXP>
       void
-      verify_treeExpandingIterator(EXP ii)
+      verify_treeExpandingIterator (EXP ii)
         {
           CHECK (!isnil (ii));
           CHECK (5 == *ii);
@@ -620,7 +624,7 @@ namespace test{
        * matching algorithms. Even more so, when other operations like filtering are intermingled;
        * in that case it might even happen that the downstream consumer does not even see the
        * items resulting from child expansion, because they are evaluated and then filtered
-       * away by a transformer and filter placed in between.
+       * away by transformers and filters placed in between.
        * @note as a consequence of the flexible automatic adapting of bound functors, it is
        *       possible for bound functors within different "layers" to collaborate, based on
        *       additional knowledge regarding the embedded data source internals. This test
@@ -779,6 +783,16 @@ namespace test{
           
           
           
+          // contrived example to verify interplay of filtering and child expansion;
+          // especially note that the filter is re-evaluated after expansion happened.
+          cout << "VERIFY->"
+               <<materialise(
+                    treeExplore(CountDown{10})
+                      .expand([](uint i){ return CountDown{i%4==0? i-1 : 0}; })
+//                      .filter([](uint i){ return i%2; })
+                      .expandAll()
+                    )<<endl;
+          
           // another convoluted example to demonstrate
           // - a filter predicate with side-effect
           // - and moreover the predicate is a generic lambda
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f49937dbd..172ad8055 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1451,7 +1451,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1533402823749" TEXT="#1099 DemoGuiRoundtrip">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1535892210892" TEXT="#1099 DemoGuiRoundtrip">
 <linktarget COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" SOURCE="ID_1925240675" STARTARROW="None" STARTINCLINATION="-51;592;"/>
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@@ -5509,7 +5509,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1506181073556" ID="ID_1878859300" MODIFIED="1518487921064" TEXT="Resolver">
+<node COLOR="#338800" CREATED="1506181073556" ID="ID_1878859300" MODIFIED="1535892564742" TEXT="Resolver">
 <linktarget COLOR="#65759f" DESTINATION="ID_1878859300" ENDARROW="Default" ENDINCLINATION="-439;-594;" ID="Arrow_ID_68163828" SOURCE="ID_610939878" STARTARROW="None" STARTINCLINATION="307;351;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1506181794428" ID="ID_333406817" MODIFIED="1518487921064" TEXT="Setup">
@@ -5921,7 +5921,7 @@
 </node>
 <node COLOR="#338800" CREATED="1508539195258" ID="ID_1044429952" MODIFIED="1525124214766" TEXT="cover">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1508540823475" FOLDED="true" ID="ID_793410656" MODIFIED="1533685069127" TEXT="path-resolution ausf&#xfc;hren">
+<node COLOR="#338800" CREATED="1508540823475" ID="ID_793410656" MODIFIED="1535892564747" TEXT="path-resolution ausf&#xfc;hren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1509475490890" ID="ID_1616720086" MODIFIED="1518487921065" TEXT="rekursiv"/>
 <node CREATED="1509475495057" ID="ID_27489504" MODIFIED="1518487921065" TEXT="Aufruf mit ResolutionState"/>
@@ -5943,7 +5943,7 @@
 <node CREATED="1509476126793" ID="ID_1463784807" MODIFIED="1518487921065" TEXT="ist mit dem Baum verwoben"/>
 <node CREATED="1509476133741" ID="ID_1273043633" MODIFIED="1518487921065" TEXT="der Baum ist aber Implementierungs-Detail"/>
 </node>
-<node CREATED="1509476154258" FOLDED="true" ID="ID_930376282" MODIFIED="1533608416143" TEXT="m&#xf6;gliche L&#xf6;sungen">
+<node CREATED="1509476154258" ID="ID_930376282" MODIFIED="1535891788152" TEXT="m&#xf6;gliche L&#xf6;sungen">
 <icon BUILTIN="idea"/>
 <node CREATED="1509476160585" ID="ID_171588117" MODIFIED="1509476184594" TEXT="Zustand opaque verpacken"/>
 <node CREATED="1509476185182" ID="ID_613038974" MODIFIED="1509476196153" TEXT="Callback &#xfc;ber den Baum transportieren"/>
@@ -5979,15 +5979,12 @@
 <node CREATED="1509482028205" ID="ID_1589522162" MODIFIED="1509482039271" TEXT="die Logik steckt im eigenen Combinator"/>
 </node>
 </node>
-<node CREATED="1514328717684" FOLDED="true" ID="ID_137835978" MODIFIED="1533608415786" TEXT="neuer Anlauf IterExplorer II">
-<arrowlink COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" STARTARROW="None" STARTINCLINATION="-387;0;"/>
+<node CREATED="1535891975603" ID="ID_1860662881" MODIFIED="1535892401183" TEXT="neuer Anlauf: nochmal ein IterExplorer-Design">
+<arrowlink COLOR="#27998e" DESTINATION="ID_137835978" ENDARROW="Default" ENDINCLINATION="-521;-801;" ID="Arrow_ID_1873000120" STARTARROW="None" STARTINCLINATION="-1866;98;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1514328733272" ID="ID_1367581404" MODIFIED="1514328740811" TEXT="monadisierter Pipeline-Builder"/>
-<node CREATED="1514328741687" ID="ID_1056450433" MODIFIED="1514328755457" TEXT="expandChildren() auf dem Iterator-API ausl&#xf6;sbar"/>
-<node CREATED="1514328757725" ID="ID_1835412332" MODIFIED="1514328766544" TEXT="auch &#xfc;ber Transformer und Abstraktionsbarrieren hinweg"/>
 </node>
 </node>
-<node CREATED="1509495634766" FOLDED="true" ID="ID_422767906" MODIFIED="1533608416148" TEXT="Zusammenspiel">
+<node CREATED="1509495634766" ID="ID_422767906" MODIFIED="1535892564749" TEXT="Zusammenspiel">
 <icon BUILTIN="info"/>
 <node CREATED="1509491594115" FOLDED="true" ID="ID_214903834" MODIFIED="1533608415788" TEXT="was tr&#xe4;gt LocationQuery bei?">
 <icon BUILTIN="help"/>
@@ -6110,7 +6107,7 @@
 <arrowlink COLOR="#172fd9" DESTINATION="ID_501629316" ENDARROW="Default" ENDINCLINATION="25;50;" ID="Arrow_ID_901660904" STARTARROW="None" STARTINCLINATION="8;-10;"/>
 </node>
 </node>
-<node CREATED="1509583164196" FOLDED="true" HGAP="45" ID="ID_1054378844" MODIFIED="1533608415807" VSHIFT="18">
+<node CREATED="1509583164196" HGAP="45" ID="ID_1054378844" MODIFIED="1535892564749" VSHIFT="18">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -6139,7 +6136,7 @@
 <node CREATED="1509583994814" ID="ID_1069105045" MODIFIED="1509583998658" TEXT="unentschieden"/>
 </node>
 </node>
-<node CREATED="1510266814301" FOLDED="true" ID="ID_1831665335" MODIFIED="1533608415397" TEXT="Ansatz">
+<node CREATED="1510266814301" ID="ID_1831665335" MODIFIED="1535892564750" TEXT="Ansatz">
 <node CREATED="1510266817500" FOLDED="true" ID="ID_1438980093" MODIFIED="1525124215509" TEXT="3 Layer verwenden">
 <icon BUILTIN="idea"/>
 <node CREATED="1510266845712" FOLDED="true" ID="ID_1058798631" MODIFIED="1525124214788" TEXT="depthFirstExpandable">
@@ -6171,7 +6168,7 @@
 <node CREATED="1510341163528" ID="ID_1640768302" MODIFIED="1510341167036" TEXT="fischt nach L&#xf6;sungen"/>
 </node>
 </node>
-<node CREATED="1510341362957" FOLDED="true" ID="ID_1499495468" MODIFIED="1525124215509" TEXT="wirklich monadisch?">
+<node CREATED="1510341362957" ID="ID_1499495468" MODIFIED="1535892564752" TEXT="wirklich monadisch?">
 <linktarget COLOR="#80c6b3" DESTINATION="ID_1499495468" ENDARROW="Default" ENDINCLINATION="-1812;12745;" ID="Arrow_ID_673178727" SOURCE="ID_1502143527" STARTARROW="None" STARTINCLINATION="4133;-10665;"/>
 <node CREATED="1510341374332" ID="ID_483481416" MODIFIED="1511572072346" TEXT="naja...">
 <richcontent TYPE="NOTE"><html>
@@ -6337,7 +6334,7 @@
 </node>
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1510446221317" FOLDED="true" HGAP="52" ID="ID_1590483406" MODIFIED="1525124214796" VSHIFT="42">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1510446221317" HGAP="52" ID="ID_1590483406" MODIFIED="1535892751360" VSHIFT="42">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -6351,16 +6348,8 @@
     </p>
   </body>
 </html></richcontent>
+<arrowlink COLOR="#b26c7a" DESTINATION="ID_1955430588" ENDARROW="Default" ENDINCLINATION="-343;-748;" ID="Arrow_ID_920121069" STARTARROW="None" STARTINCLINATION="-38;43;"/>
 <icon BUILTIN="help"/>
-<node CREATED="1510446351987" FOLDED="true" ID="ID_1280916101" MODIFIED="1525124214796" TEXT="steile These">
-<node CREATED="1510446304314" ID="ID_628535706" MODIFIED="1510446320689" TEXT="Zustand ist ein Ph&#xe4;nomen der wirklichen Welt"/>
-<node CREATED="1510446255552" ID="ID_1911148874" MODIFIED="1510446264587" TEXT="funktionale Sprachen sind kaputt by design"/>
-<node CREATED="1510446265767" ID="ID_1173611125" MODIFIED="1510446275105" TEXT="nur deshalb brauchts dort Monaden"/>
-</node>
-<node CREATED="1510446363306" FOLDED="true" ID="ID_784523355" MODIFIED="1525124214796" TEXT="trotzdem gerechtfertigt?">
-<node CREATED="1510446371480" ID="ID_507011741" MODIFIED="1510446394065" TEXT="Klarheit"/>
-<node CREATED="1510446394965" ID="ID_1101937943" MODIFIED="1510446398689" TEXT="Trennung"/>
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 <node CREATED="1510446985581" FOLDED="true" HGAP="7" ID="ID_1266495962" MODIFIED="1525124214797" VSHIFT="44">
 <richcontent TYPE="NODE"><html>
@@ -6582,10 +6571,10 @@
 </node>
 </node>
 <node COLOR="#338800" CREATED="1510941463562" FOLDED="true" ID="ID_845080696" MODIFIED="1533608415412" TEXT="TreeExplorer">
-<linktarget COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" SOURCE="ID_137835978" STARTARROW="None" STARTINCLINATION="-387;0;"/>
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+<linktarget COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" SOURCE="ID_137835978" STARTARROW="None" STARTINCLINATION="-387;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1511571446467" FOLDED="true" ID="ID_1778455053" MODIFIED="1525124215510" TEXT="expand-Operation">
 <icon BUILTIN="button_ok"/>
@@ -9056,9 +9045,10 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941646050" FOLDED="true" ID="ID_596422747" MODIFIED="1533608416151" TEXT="expandable ChildIter">
+<node COLOR="#338800" CREATED="1510941646050" ID="ID_596422747" MODIFIED="1535892395441" TEXT="expandable ChildIter">
 <linktarget COLOR="#283b63" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="66;49;" ID="Arrow_ID_1521598219" SOURCE="ID_1408571420" STARTARROW="Default" STARTINCLINATION="94;-19;"/>
 <linktarget COLOR="#786296" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="278;120;" ID="Arrow_ID_1919142695" SOURCE="ID_115330701" STARTARROW="None" STARTINCLINATION="952;148;"/>
+<linktarget COLOR="#236375" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="-1080;23;" ID="Arrow_ID_1748772698" SOURCE="ID_463934766" STARTARROW="None" STARTINCLINATION="-1002;-57;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1510941655360" ID="ID_1359727169" MODIFIED="1514292297209" TEXT="verwendet TreeExplorer">
 <arrowlink COLOR="#585e9d" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-23;161;" ID="Arrow_ID_402051988" STARTARROW="None" STARTINCLINATION="138;6;"/>
@@ -9067,7 +9057,7 @@
 <node COLOR="#338800" CREATED="1510941661615" ID="ID_463290050" MODIFIED="1514292291295" TEXT="verpackt in IterSource">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1513561602173" FOLDED="true" HGAP="180" ID="ID_760843174" MODIFIED="1533608415817" TEXT="Design" VSHIFT="29">
+<node COLOR="#338800" CREATED="1513561602173" HGAP="180" ID="ID_760843174" MODIFIED="1535891853006" TEXT="Design" VSHIFT="29">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513560607636" FOLDED="true" ID="ID_774099115" MODIFIED="1533608415430" TEXT="expand -- wie?">
 <icon BUILTIN="help"/>
@@ -9076,7 +9066,7 @@
 <node CREATED="1513560646014" ID="ID_812625308" MODIFIED="1513560649570" TEXT="implementation defined"/>
 <node CREATED="1513560650614" ID="ID_127083955" MODIFIED="1513560657793" TEXT="mu&#xdf; dort Kind-iterieren k&#xf6;nnen"/>
 </node>
-<node CREATED="1513561422541" FOLDED="true" ID="ID_1500554436" MODIFIED="1533608415434" TEXT="was ist depth()?">
+<node CREATED="1513561422541" FOLDED="true" ID="ID_1500554436" MODIFIED="1535891901910" TEXT="was ist depth()?">
 <arrowlink COLOR="#62326e" DESTINATION="ID_1709677569" ENDARROW="Default" ENDINCLINATION="-209;-29;" ID="Arrow_ID_894748806" STARTARROW="Default" STARTINCLINATION="43;132;"/>
 <linktarget COLOR="#9493b7" DESTINATION="ID_1500554436" ENDARROW="Default" ENDINCLINATION="91;103;" ID="Arrow_ID_811314610" SOURCE="ID_937539446" STARTARROW="None" STARTINCLINATION="-39;0;"/>
 <icon BUILTIN="help"/>
@@ -9092,7 +9082,7 @@
 <node CREATED="1513561531383" ID="ID_442154302" MODIFIED="1513561547728" TEXT="Match-Algo mu&#xdf; start-Offset verwalten und draufschlagen"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513561577840" FOLDED="true" HGAP="63" ID="ID_260039139" MODIFIED="1533608415440" TEXT="Struktur Navigations-Zustand" VSHIFT="22">
+<node COLOR="#338800" CREATED="1513561577840" FOLDED="true" HGAP="63" ID="ID_260039139" MODIFIED="1535891938689" TEXT="Struktur Navigations-Zustand" VSHIFT="22">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1513561744004" ID="ID_937539446" MODIFIED="1513961543467" TEXT="h&#xe4;ngt ab von relativ/absolut?">
 <arrowlink COLOR="#9493b7" DESTINATION="ID_1500554436" ENDARROW="Default" ENDINCLINATION="91;103;" ID="Arrow_ID_811314610" STARTARROW="None" STARTINCLINATION="-39;0;"/>
@@ -9111,8 +9101,8 @@
 <node CREATED="1513561916554" ID="ID_1130596381" MODIFIED="1513561945359" TEXT="(node&amp;, depth)">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1513562001015" FOLDED="true" ID="ID_1952968226" MODIFIED="1525124215512" TEXT="zuz&#xfc;glich konkretem Kind-Iterator">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1513564476303" FOLDED="true" ID="ID_718816032" MODIFIED="1513978342757" TEXT="Problem: Typ">
+<node CREATED="1513562001015" FOLDED="true" ID="ID_1952968226" MODIFIED="1535891935962" TEXT="zuz&#xfc;glich konkretem Kind-Iterator">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1513564476303" FOLDED="true" ID="ID_718816032" MODIFIED="1535891933050" TEXT="Problem: Typ">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1513564486206" ID="ID_586028205" MODIFIED="1513564495520" TEXT="Typ ist nicht uniform"/>
 <node CREATED="1513564496228" ID="ID_559674728" MODIFIED="1513564503503" TEXT="wird erst hinter IterSource konform"/>
@@ -9219,7 +9209,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1513891620064" FOLDED="true" HGAP="-78" ID="ID_393488703" MODIFIED="1525124215512" TEXT="Diskussion" VSHIFT="10">
+<node CREATED="1513891620064" FOLDED="true" HGAP="-78" ID="ID_393488703" MODIFIED="1535891925091" TEXT="Diskussion" VSHIFT="10">
 <icon BUILTIN="forward"/>
 <node CREATED="1513891660578" FOLDED="true" ID="ID_1557026848" MODIFIED="1525124214857" TEXT="heterogener Baum">
 <node CREATED="1513891666641" ID="ID_84511927" MODIFIED="1513891673373" TEXT="erzwingt Abstraktion"/>
@@ -9331,7 +9321,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1513893841787" FOLDED="true" ID="ID_588599089" MODIFIED="1525124214858">
+<node CREATED="1513893841787" FOLDED="true" ID="ID_588599089" MODIFIED="1535891923427">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -9373,7 +9363,7 @@
 </node>
 <node CREATED="1513893916705" ID="ID_1837000174" MODIFIED="1513894531402" TEXT="als nested-Interface von LocationQuery"/>
 </node>
-<node COLOR="#177d54" CREATED="1513894057318" FOLDED="true" HGAP="19" ID="ID_1657702066" MODIFIED="1525124214858" TEXT="Weiterungen..." VSHIFT="28">
+<node COLOR="#177d54" CREATED="1513894057318" FOLDED="true" HGAP="19" ID="ID_1657702066" MODIFIED="1535891921460" TEXT="Weiterungen..." VSHIFT="28">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1513894072292" ID="ID_550737261" MODIFIED="1513894085095" TEXT="die n&#xe4;chsten Schritte w&#xe4;ren....">
@@ -9472,7 +9462,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1513961620603" FOLDED="true" ID="ID_1014293898" MODIFIED="1533608415821" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1513961620603" FOLDED="true" ID="ID_1014293898" MODIFIED="1535891875282" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1513962702097" FOLDED="true" ID="ID_1829231358" MODIFIED="1533608415452" TEXT="Iterator-Typ konstruieren">
 <arrowlink COLOR="#1d3877" DESTINATION="ID_989478065" ENDARROW="Default" ENDINCLINATION="33;-151;" ID="Arrow_ID_1500458185" STARTARROW="Default" STARTINCLINATION="-102;2;"/>
@@ -9681,7 +9671,7 @@
 <node CREATED="1510941687588" ID="ID_601914095" MODIFIED="1518487921065" TEXT="beispielhaft f&#xfc;r GenNode umsetzen">
 <icon BUILTIN="yes"/>
 </node>
-<node COLOR="#338800" CREATED="1510941740069" FOLDED="true" ID="ID_1408571420" MODIFIED="1533608416154" TEXT="erweiterter ChildIter">
+<node COLOR="#338800" CREATED="1510941740069" FOLDED="true" ID="ID_1408571420" MODIFIED="1535891884712" TEXT="erweiterter ChildIter">
 <arrowlink COLOR="#283b63" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="66;49;" ID="Arrow_ID_1521598219" STARTARROW="Default" STARTINCLINATION="94;-19;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1513560671819" ID="ID_989478065" MODIFIED="1514292039775" TEXT="Interface umstellen">
@@ -10109,7 +10099,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941766817" FOLDED="true" HGAP="13" ID="ID_1117346518" MODIFIED="1533608416166" TEXT="Testf&#xe4;lle" VSHIFT="29">
+<node COLOR="#338800" CREATED="1510941766817" FOLDED="true" HGAP="13" ID="ID_1117346518" MODIFIED="1535891833392" TEXT="Testf&#xe4;lle" VSHIFT="29">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1513477873206" ID="ID_939423021" MODIFIED="1518487921065" TEXT="definieren was abzudecken ist...">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -15311,7 +15301,7 @@
 </node>
 </node>
 <node CREATED="1486943969999" ID="ID_1823284637" MODIFIED="1518487921078" TEXT="Wizzard">
-<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1534025106095" TEXT="Fehlerlog (notification display)">
+<node CREATED="1533688038820" ID="ID_70134302" MODIFIED="1535891607125" TEXT="Fehlerlog (notification display)">
 <linktarget COLOR="#a9aac1" DESTINATION="ID_70134302" ENDARROW="Default" ENDINCLINATION="-1984;0;" ID="Arrow_ID_1885125683" SOURCE="ID_361019548" STARTARROW="None" STARTINCLINATION="803;-67;"/>
 </node>
 <node CREATED="1486943974590" ID="ID_1603501979" MODIFIED="1518487921078" TEXT="Hilfe (Website?)"/>
@@ -17293,7 +17283,7 @@
 <icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401271538" ID="ID_613065826" MODIFIED="1533401302008" TEXT="erst mal nur eine Nachricht als UI-Notification">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1533403219885" TEXT="#1099 DemoGuiRoundtrip">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1535892210892" TEXT="#1099 DemoGuiRoundtrip">
 <arrowlink COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" STARTARROW="None" STARTINCLINATION="418;-44;"/>
 <icon BUILTIN="flag-pink"/>
 </node>
@@ -25101,6 +25091,45 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815210288" ID="ID_1041148737" MODIFIED="1535815475299" TEXT="Problem: kein wirkliches Backtracking">
 <linktarget COLOR="#ba8096" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" SOURCE="ID_493114230" STARTARROW="None" STARTINCLINATION="838;114;"/>
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1535835597691" ID="ID_218241863" MODIFIED="1535835683187" TEXT="wird relevant bei Richtungs-Wechsel">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Beispiel:
+    </p>
+    <p>
+      a-b-c-a
+    </p>
+    <p>
+      match(&quot;a&quot;).after(&quot;b&quot;) scheitert, weil sich die Suche am ersten &quot;a&quot; festbei&#223;t.
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1535835709996" ID="ID_239175550" MODIFIED="1535835723893" TEXT="wir brauchen zwingend eine Art Stack">
+<icon BUILTIN="broken-line"/>
+<node CREATED="1535835843019" ID="ID_772926928" MODIFIED="1535836462411" TEXT="die Sequenz der Filter mu&#xdf; verf&#xfc;gbar bleiben"/>
+<node CREATED="1535836509369" ID="ID_391734023" MODIFIED="1535836566669" TEXT="wenn eine Konfiguration ersch&#xf6;pft (leer) ist m&#xfc;ssen wir..."/>
+<node CREATED="1535836534934" ID="ID_371785386" MODIFIED="1535836558822" TEXT="auf dem n&#xe4;chsten Element der vorherigen Stufe neu aufsetezn"/>
+</node>
+<node CREATED="1535836610803" ID="ID_1351097381" MODIFIED="1535893429218" TEXT="das kommt mir bekannt vor...">
+<icon BUILTIN="idea"/>
+<node CREATED="1535836620898" ID="ID_1732889993" MODIFIED="1535836645399" TEXT="kann mein neuer Pipeline-Iter das?">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1535893406156" ID="ID_451238053" MODIFIED="1535893422972" TEXT="Ja: er wurde exakt f&#xfc;r solche Auswertungen konstruiert">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893431656" ID="ID_1626597975" MODIFIED="1535893590393" TEXT="Beschlu&#xdf;: umstellen auf TreeExplorer">
+<arrowlink COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" STARTARROW="None" STARTINCLINATION="1631;0;"/>
+<icon BUILTIN="pencil"/>
+</node>
 </node>
 </node>
 </node>
@@ -30432,6 +30461,436 @@
 </node>
 </node>
 </node>
+<node CREATED="1535890757430" ID="ID_3793753" MODIFIED="1535890759705" TEXT="Iterator">
+<node CREATED="1535890775651" ID="ID_333704322" MODIFIED="1535890780919" TEXT="Lumiera Forward Iterator">
+<node CREATED="1535890788898" ID="ID_474606436" MODIFIED="1535890793189" TEXT="IterAdapter"/>
+<node CREATED="1535891020739" ID="ID_7899831" MODIFIED="1535891025742" TEXT="IterStateWrapper">
+<node CREATED="1535891026946" ID="ID_958757780" MODIFIED="1535891031093" TEXT="sehr wichtiges Konzept"/>
+<node CREATED="1535891031609" ID="ID_1246882752" MODIFIED="1535891037564" TEXT="leider zwei Auspr&#xe4;gungen">
+<node CREATED="1535891041376" ID="ID_1943507267" MODIFIED="1535891049739" TEXT="Core ist opaque (private)"/>
+<node CREATED="1535891050566" ID="ID_89731232" MODIFIED="1535891054746" TEXT="von Core erben">
+<node CREATED="1535895093066" ID="ID_1894277171" MODIFIED="1535895094494" TEXT="IterableDecorator"/>
+<node CREATED="1535895095322" ID="ID_1368242997" MODIFIED="1535895100037" TEXT="geh&#xf6;rt zu TreeExplorer"/>
+</node>
+</node>
+</node>
+<node CREATED="1535890793825" ID="ID_582282005" MODIFIED="1535890799468" TEXT="Itertool">
+<node CREATED="1535893017063" ID="ID_859634605" MODIFIED="1535893023178" TEXT="zun&#xe4;chst naiv-direkt implementiert"/>
+<node CREATED="1535893024102" ID="ID_1514691517" MODIFIED="1535893032345" TEXT="Sandwich-Design">
+<node CREATED="1535893036132" ID="ID_827990682" MODIFIED="1535893040736" TEXT="nicht besonders sch&#xf6;n"/>
+<node CREATED="1535893041324" ID="ID_1175882215" MODIFIED="1535893044215" TEXT="aber soweit wartbar"/>
+</node>
+<node CREATED="1535893048363" ID="ID_794436728" MODIFIED="1535893082084" TEXT="Frage: abl&#xf6;sen durch Pipeline-Builder?">
+<arrowlink COLOR="#afa9c1" DESTINATION="ID_114091640" ENDARROW="Default" ENDINCLINATION="-503;-426;" ID="Arrow_ID_956211493" STARTARROW="None" STARTINCLINATION="238;0;"/>
+<icon BUILTIN="help"/>
+</node>
+</node>
+</node>
+<node CREATED="1535890810111" ID="ID_677938944" MODIFIED="1535890812763" TEXT="IterSource">
+<node CREATED="1535890823613" ID="ID_1227701237" MODIFIED="1535890829752" TEXT="Lumiera Iterator als Abstraktion"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535890830772" ID="ID_1558484735" MODIFIED="1535890859471" TEXT="bestehendes Design ist ungeschickt">
+<icon BUILTIN="stop-sign"/>
+<node CREATED="1535890890980" ID="ID_1370634828" MODIFIED="1535890896359" TEXT="unterstellt einen Pos-Pointer"/>
+<node CREATED="1535890915576" ID="ID_8718412" MODIFIED="1535890938281" TEXT="Semantik der Abbruchbedingung ist verwirrend"/>
+</node>
+<node CREATED="1535890958987" ID="ID_71109348" MODIFIED="1535890964438" TEXT="alternatives Design">
+<node CREATED="1535890965170" ID="ID_1363636315" MODIFIED="1535890968798" TEXT="was geht hier?">
+<node CREATED="1535890972609" ID="ID_1586923063" MODIFIED="1535890985339" TEXT="wie state core?"/>
+</node>
+</node>
+</node>
+<node CREATED="1535891065189" ID="ID_1233342893" MODIFIED="1535891073512" TEXT="Iterator-Monade">
+<node COLOR="#435e98" CREATED="1512925265295" HGAP="103" ID="ID_1502143527" MODIFIED="1535892901782" VSHIFT="-66">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Thema: <b>Monaden</b>
+    </p>
+  </body>
+</html></richcontent>
+<arrowlink COLOR="#80c6b3" DESTINATION="ID_1499495468" ENDARROW="Default" ENDINCLINATION="-1812;12745;" ID="Arrow_ID_673178727" STARTARROW="None" STARTINCLINATION="4133;-10665;"/>
+<linktarget COLOR="#6c79a2" DESTINATION="ID_1502143527" ENDARROW="Default" ENDINCLINATION="-522;742;" ID="Arrow_ID_616092581" SOURCE="ID_513357674" STARTARROW="None" STARTINCLINATION="238;0;"/>
+<icon BUILTIN="flag-blue"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1510446221317" HGAP="37" ID="ID_1955430588" MODIFIED="1535892751360" VSHIFT="-14">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sind Monaden
+    </p>
+    <p>
+      wirklich hilfreich?
+    </p>
+  </body>
+</html></richcontent>
+<linktarget COLOR="#b26c7a" DESTINATION="ID_1955430588" ENDARROW="Default" ENDINCLINATION="-343;-748;" ID="Arrow_ID_920121069" SOURCE="ID_1590483406" STARTARROW="None" STARTINCLINATION="-38;43;"/>
+<icon BUILTIN="help"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1510446351987" ID="ID_855693611" MODIFIED="1535892731992" TEXT="steile These">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1510446304314" ID="ID_1203762242" MODIFIED="1510446320689" TEXT="Zustand ist ein Ph&#xe4;nomen der wirklichen Welt"/>
+<node CREATED="1510446255552" ID="ID_46197323" MODIFIED="1510446264587" TEXT="funktionale Sprachen sind kaputt by design"/>
+<node CREATED="1510446265767" ID="ID_1283184818" MODIFIED="1510446275105" TEXT="nur deshalb brauchts dort Monaden"/>
+</node>
+<node CREATED="1510446363306" ID="ID_505111674" MODIFIED="1535892582314" TEXT="trotzdem gerechtfertigt?">
+<node CREATED="1510446371480" ID="ID_247739078" MODIFIED="1510446394065" TEXT="Klarheit"/>
+<node CREATED="1510446394965" ID="ID_1458617201" MODIFIED="1510446398689" TEXT="Trennung"/>
+</node>
+</node>
+<node COLOR="#435e98" CREATED="1512927162098" HGAP="93" ID="ID_1774532014" MODIFIED="1535892928429" TEXT="Einsichten" VSHIFT="37">
+<icon BUILTIN="idea"/>
+<node CREATED="1512927175056" ID="ID_516152902" MODIFIED="1518487921098" TEXT="nicht das Gelbe vom Ei">
+<node CREATED="1512927204460" ID="ID_1166808329" MODIFIED="1518487921098" TEXT="kein wirkliches Design-Pattern"/>
+<node CREATED="1512927213962" ID="ID_1374430987" MODIFIED="1518487921098" TEXT="es fehlt die Nennkraft"/>
+</node>
+<node CREATED="1512927667023" ID="ID_67694617" MODIFIED="1518487921098" TEXT="Probleme">
+<node CREATED="1512927676973" ID="ID_1019834257" MODIFIED="1518487921098" TEXT="Mondaden sind eine rein technische L&#xf6;sung"/>
+<node CREATED="1512927687844" ID="ID_1680797364" MODIFIED="1518487921098" TEXT="sie vereinigen Themen ohne innere Verwadtschaft"/>
+<node CREATED="1512927766769" ID="ID_943419159" MODIFIED="1518487921098" TEXT="Zusammenspiel gebundener Funktionen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...bindet die Betrachtung auf einen technischen Level,
+    </p>
+    <p>
+      und f&#252;hrt dazu, da&#223; die Abstraktion undicht wird
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1512927978133" ID="ID_1491853321" MODIFIED="1518487921098" TEXT="passen schlecht in C++">
+<node CREATED="1512928064858" ID="ID_1221151193" MODIFIED="1518487921098" TEXT="entweder massiv Metaprogrammierung"/>
+<node CREATED="1512928075920" ID="ID_491825441" MODIFIED="1518487921098" TEXT="oder man schafft ein runtime-Meta-System"/>
+</node>
+</node>
+<node CREATED="1512928100557" ID="ID_767453821" MODIFIED="1518487921098" TEXT="n&#xfc;tzlich">
+<node CREATED="1512928114707" ID="ID_21920250" MODIFIED="1518487921098" TEXT="um Zustand auszukoppeln">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      genau der Umstand,
+    </p>
+    <p>
+      da&#223; funktionale Sprachen von einer Zustands-Phobie getrieben sind,
+    </p>
+    <p>
+      macht Monaden n&#252;tzlich, um inh&#228;renten Zustand wegzuabstrahieren.
+    </p>
+    <p>
+      Das kann genutzt werden, um den Zustand einer Wechselwirkung
+    </p>
+    <p>
+      nach einer Seite der Glieder auszukoppeln.
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1512928357202" ID="ID_360277857" MODIFIED="1518487921098" TEXT="um Konfigurierbarkeit zu schaffen"/>
+<node CREATED="1512928258312" ID="ID_1469652928" MODIFIED="1518487921098" TEXT="um technische Details zu entflechten"/>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1512928287812" ID="ID_212632305" MODIFIED="1535892918047" TEXT="Fazit">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1512928291555" ID="ID_1651357350" MODIFIED="1518487921098" TEXT="nur ein &#xbb;Monaden-Motiv&#xab; nutzen"/>
+<node CREATED="1512928301386" ID="ID_589389944" MODIFIED="1518487921098" TEXT="das Builder-Pattern in den Vordergrund stellen">
+<node CREATED="1512928322567" ID="ID_462235185" MODIFIED="1518487921098" TEXT="Builder ist ein wirkliches Pattern">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1535891101400" ID="ID_673846521" MODIFIED="1535891107371" TEXT="IterExplorer">
+<node CREATED="1535891108199" ID="ID_1302968576" MODIFIED="1535891111234" TEXT="erster Anlauf">
+<node CREATED="1535891111919" ID="ID_1088778723" MODIFIED="1535891123604" TEXT="funktioniert">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535891114310" ID="ID_799781858" MODIFIED="1535891120950" TEXT="ist h&#xe4;&#xdf;lich">
+<icon BUILTIN="smily_bad"/>
+</node>
+<node CREATED="1535891125877" ID="ID_131112709" MODIFIED="1535891129432" TEXT="nur einmal verwendet">
+<node CREATED="1535891130164" ID="ID_1396398506" MODIFIED="1535891135892" TEXT="f&#xfc;r das Job-Planning">
+<icon BUILTIN="info"/>
+</node>
+</node>
+</node>
+<node CREATED="1512925334501" FOLDED="true" ID="ID_409327286" MODIFIED="1535892997921" TEXT="IterExplorer-Design">
+<linktarget COLOR="#625975" DESTINATION="ID_409327286" ENDARROW="Default" ENDINCLINATION="-843;1771;" ID="Arrow_ID_86323098" SOURCE="ID_185594200" STARTARROW="None" STARTINCLINATION="-493;-1123;"/>
+<icon BUILTIN="stop-sign"/>
+<node CREATED="1512925397741" ID="ID_1352590559" MODIFIED="1518487921098" TEXT="Design">
+<node CREATED="1512925342773" ID="ID_1304424851" MODIFIED="1518487921098" TEXT="unbefriedigend"/>
+<node CREATED="1512925350379" ID="ID_21486020" MODIFIED="1518487921098" TEXT="zu offen und flexibel"/>
+<node CREATED="1512925358954" ID="ID_27814827" MODIFIED="1518487921098" TEXT="keine leitende Koh&#xe4;renz"/>
+<node CREATED="1512925366562" ID="ID_581707193" MODIFIED="1518487921098" TEXT="daher wie ein Gestr&#xfc;pp"/>
+</node>
+<node CREATED="1512925431577" ID="ID_1834933729" MODIFIED="1518487921098" TEXT="Iterator-Chain">
+<node CREATED="1512925436224" ID="ID_573800195" MODIFIED="1518487921098" TEXT="nice to have">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      geh&#246;rt zu dem Themenkomplex &quot;itertools&quot;
+    </p>
+    <p>
+      Python hat das auch, Java neuerdings auch
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1512925438992" ID="ID_1273839582" MODIFIED="1518487921098" TEXT="bisher nicht verwendet"/>
+</node>
+<node CREATED="1512925491857" ID="ID_652705156" MODIFIED="1518487921098" TEXT="Depth-fist / breadth fist">
+<node CREATED="1512925501216" ID="ID_1197407538" MODIFIED="1518487921098" TEXT="Programmier-&#xdc;bung"/>
+<node CREATED="1512925508183" ID="ID_1861334930" MODIFIED="1518487921098" TEXT="ohne innere Notwendigkeit"/>
+<node CREATED="1512925519653" ID="ID_1558680477" MODIFIED="1518487921098" TEXT="nicht verwendet"/>
+</node>
+<node CREATED="1512925529484" ID="ID_1844773201" MODIFIED="1518487921098" TEXT="SelfIntegration">
+<node CREATED="1512925547393" ID="ID_1866032394" MODIFIED="1518487921098" TEXT="Design-Sackgasse">
+<icon BUILTIN="stop-sign"/>
+<node CREATED="1512925769363" ID="ID_582578425" MODIFIED="1518487921098" TEXT="geht gegen die Natur der Dinge"/>
+<node CREATED="1512925732065" ID="ID_1377165331" MODIFIED="1518487921098" TEXT="verwirrendes Extension-API">
+<node CREATED="1512925805416" MODIFIED="1518487921098" TEXT="build(...).wrapping(...)"/>
+<node CREATED="1512925817645" MODIFIED="1518487921098" TEXT="build(...).usingSequence(...)"/>
+</node>
+</node>
+<node CREATED="1512925552137" ID="ID_43735106" MODIFIED="1518487921098" TEXT="wollte den Stack vermeiden">
+<icon BUILTIN="smiley-oh"/>
+<node CREATED="1512925568958" ID="ID_1805640819" MODIFIED="1518487921098" TEXT="was gar nicht geht"/>
+<node CREATED="1512925574782" ID="ID_22338010" MODIFIED="1518487921098" TEXT="Idee Inline-stack">
+<icon BUILTIN="idea"/>
+<node CREATED="1512925593195" ID="ID_1333973816" MODIFIED="1518487921098" TEXT="das w&#xe4;re aber eine reine Komponente"/>
+<node CREATED="1512925599402" ID="ID_551236508" MODIFIED="1518487921098" TEXT="Bauprinzip wie in UI-Coord">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...will sagen, es ist klar, wie man sowas machen kann.
+    </p>
+    <p>
+      Seinerzeit war mir das auch klar, aber ich wollte es nicht gleich ausprogrammieren.
+    </p>
+    <p>
+      Inzwischen kam dann das Thema UI-Coordinaten, und dort <i>habe</i>&#160;ich es ausprogrammiert,
+    </p>
+    <p>
+      und zwar direkt in die Low-Level-Schicht integriert, was nicht schlecht ist,
+    </p>
+    <p>
+      da eine Abstraktion hier sehr technisch werden w&#252;rde
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+</node>
+<node CREATED="1512925864774" ID="ID_1543264108" MODIFIED="1535891440192" TEXT="verwendet f&#xfc;r JobPlanning">
+<arrowlink COLOR="#5379b5" DESTINATION="ID_181262071" ENDARROW="Default" ENDINCLINATION="-150;-386;" ID="Arrow_ID_1786254694" STARTARROW="Default" STARTINCLINATION="-1298;0;"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1512925959074" ID="ID_30857289" MODIFIED="1518487921098" TEXT="TODO: abl&#xf6;sen durch IterTreeExplorer">
+<arrowlink COLOR="#83dfc7" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-1109;3887;" ID="Arrow_ID_1645152965" STARTARROW="None" STARTINCLINATION="2051;-176;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1535891140563" ID="ID_1503014369" MODIFIED="1535891144430" TEXT="TreeExplorer">
+<node CREATED="1535891145922" ID="ID_1982906906" MODIFIED="1535891149925" TEXT="zweiter Anlauf">
+<node CREATED="1535891150825" ID="ID_451523751" MODIFIED="1535891155914" TEXT="funktioniert">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535891156816" ID="ID_679300718" MODIFIED="1535891164631" TEXT="ist komplex">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1514328717684" ID="ID_137835978" MODIFIED="1535892401183" TEXT="neuer Anlauf IterExplorer II">
+<arrowlink COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" STARTARROW="None" STARTINCLINATION="-387;0;"/>
+<linktarget COLOR="#27998e" DESTINATION="ID_137835978" ENDARROW="Default" ENDINCLINATION="-521;-801;" ID="Arrow_ID_1873000120" SOURCE="ID_1860662881" STARTARROW="None" STARTINCLINATION="-1866;98;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1514328733272" ID="ID_1367581404" MODIFIED="1514328740811" TEXT="monadisierter Pipeline-Builder">
+<node CREATED="1535891193740" ID="ID_114091640" MODIFIED="1535893082084" TEXT="Itertool-Funktionalit&#xe4;t">
+<linktarget COLOR="#afa9c1" DESTINATION="ID_114091640" ENDARROW="Default" ENDINCLINATION="-503;-426;" ID="Arrow_ID_956211493" SOURCE="ID_794436728" STARTARROW="None" STARTINCLINATION="238;0;"/>
+<node CREATED="1535891222952" ID="ID_1544390501" MODIFIED="1535891230659" TEXT="&#xdc;berschneidung / Redundanz">
+<node CREATED="1535891232214" ID="ID_1564035277" MODIFIED="1535891244617" TEXT="komplett andere Implementierung"/>
+<node CREATED="1535891245533" ID="ID_1869540879" MODIFIED="1535891251247" TEXT="konzeptionell aber gleich"/>
+</node>
+<node CREATED="1535891265106" ID="ID_483764241" MODIFIED="1535891275533" TEXT="hier aber: Integration mit &quot;explore&quot;-Funktion"/>
+</node>
+</node>
+<node CREATED="1514328741687" ID="ID_1056450433" MODIFIED="1514328755457" TEXT="expandChildren() auf dem Iterator-API ausl&#xf6;sbar"/>
+<node CREATED="1514328757725" ID="ID_1835412332" MODIFIED="1514328766544" TEXT="auch &#xfc;ber Transformer und Abstraktionsbarrieren hinweg"/>
+<node CREATED="1535892081117" ID="ID_931408275" MODIFIED="1535892109957" TEXT="wraped State-Core">
+<node CREATED="1535892112560" ID="ID_1137060893" MODIFIED="1535892121547" TEXT="bewu&#xdf;t halboffen"/>
+<node CREATED="1535892122487" ID="ID_1852433674" MODIFIED="1535892137985" TEXT="Kollaboration mit downstream intendiert"/>
+<node CREATED="1535892146588" ID="ID_1173791220" MODIFIED="1535892158246" TEXT="Layerering als Konstruktions-Hilfsmittel"/>
+</node>
+<node COLOR="#338800" CREATED="1535892165753" ID="ID_463934766" MODIFIED="1535892395441" TEXT="konkret: expandable ChildIter bauen">
+<arrowlink COLOR="#236375" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="-1080;23;" ID="Arrow_ID_1748772698" STARTARROW="None" STARTINCLINATION="-1002;-57;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535893109211" ID="ID_1112499323" MODIFIED="1535893117935" TEXT="Probleme mit dem IterSource-Interface">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894221015" ID="ID_977007729" MODIFIED="1535894381051" TEXT="Bug im Filter-Layer?">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1535894239308" ID="ID_1809452702" MODIFIED="1535894251655" TEXT="Reihenfolge des Parent-Aufrufes in expandChildren()"/>
+<node CREATED="1535894252195" ID="ID_373085595" MODIFIED="1535894291490" TEXT="kommt mir komisch vor; pullFilter() sollte doch danach kommen"/>
+<node CREATED="1535894301413" ID="ID_1630859517" MODIFIED="1535894376961" TEXT="sieht nach copy-n-paste aus">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...von der entsprechenden Methode im Transformer
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="smiley-oh"/>
+</node>
+<node CREATED="1535894292222" ID="ID_1328694952" MODIFIED="1535894370745" TEXT="vermutlich im Test &#xfc;bersehen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...hatte die Notwendigkeit hierf&#252;r seinerzeit w&#228;hrend der Tests entdeckt,
+    </p>
+    <p>
+      und im Unit-Test nur f&#252;r die Kombination Transformer + Explorer abgedeckt....
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894385009" ID="ID_1130325761" MODIFIED="1535894392233" TEXT="Testfall schreiben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node CREATED="1535893137527" ID="ID_994961372" MODIFIED="1535893142488" TEXT="Verwendungen">
+<icon BUILTIN="info"/>
+<node CREATED="1535893144518" ID="ID_1137736223" MODIFIED="1535893214860" TEXT="ViewSpec solver im UI">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        Suche wird geleitet durch die ViewSpecDSL
+      </li>
+      <li>
+        hinter dem (opaquen) TreeExplorer steckt die konkrete UI-Topologie
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535893231835" ID="ID_637460742" MODIFIED="1535893326431" TEXT="Such-Pr&#xe4;dikate auf EventLog">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      EventLog ist ein Test-Hilfsmittel,
+    </p>
+    <p>
+      um Unit-Tests &#252;ber UI-Bus-Interaktionen schreiben zu k&#246;nnen.
+    </p>
+    <p>
+      Es gibt hierzu Test-Varianten, die jeden Aufruf in ein internes Log notieren.
+    </p>
+    <p>
+      Im Test verwendet man dann eine Pattern-Such-DSL,
+    </p>
+    <p>
+      hinter der sich eine verkettete Suche mit Backtracking verbirgt
+    </p>
+  </body>
+</html>
+</richcontent>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893353955" ID="ID_1665477644" MODIFIED="1535893590393" TEXT="bestehende L&#xf6;sung umstellen">
+<linktarget COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" SOURCE="ID_1626597975" STARTARROW="None" STARTINCLINATION="1631;0;"/>
+<icon BUILTIN="pencil"/>
+<node CREATED="1535893608745" ID="ID_11389264" MODIFIED="1535893673457" TEXT="Idee: Auswertungs-State">
+<icon BUILTIN="idea"/>
+<node CREATED="1535893623463" ID="ID_371015216" MODIFIED="1535893629458" TEXT="als State Core im Iterator"/>
+<node CREATED="1535893631990" ID="ID_129119743" MODIFIED="1535893641848" TEXT="h&#xe4;lt den Quell-Iterator"/>
+<node CREATED="1535893643956" ID="ID_279421694" MODIFIED="1535893667251" TEXT="delegiert / wrappt">
+<icon BUILTIN="help"/>
+</node>
+</node>
+<node CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535893716894" TEXT="Aufgabe: Filter erweiterbar machen">
+<node CREATED="1535893718194" ID="ID_872370459" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
+<node CREATED="1535893752174" ID="ID_386073545" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sofern l&#228;ngerfristig Itertools durch TreeExplorer abgel&#246;st werden k&#246;nnte
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+<node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535893804419" TEXT="Auswertungs-Stack">
+<node CREATED="1535893826972" ID="ID_352546105" MODIFIED="1535894073967" TEXT="aktueller Frame">
+<node CREATED="1535894074891" ID="ID_1972842519" MODIFIED="1535894075798" TEXT="== aktuel wirksamer Suchfilter"/>
+<node CREATED="1535894076546" ID="ID_880245387" MODIFIED="1535894084445" TEXT="schie&#xdf;t Suchposition ein"/>
+</node>
+<node CREATED="1535893989214" ID="ID_875812160" MODIFIED="1535894010499">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <u>Invariante</u>: <b>pullMatch</b>()
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+<node CREATED="1535894029921" ID="ID_152779506" MODIFIED="1535894037411" TEXT="den Stack schrittweise hochsteigen"/>
+</node>
+</node>
+<node CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1535894105107" TEXT="als eigene Lib-Klasse bauen">
+<node CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1535894120520" TEXT="Frage: wie konkret?">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1535894138774" TEXT="eigenst&#xe4;ndiger Unit-Test">
+<node CREATED="1535894140882" ID="ID_1145179443" MODIFIED="1535894190927" TEXT="IterTreeExplorer_test nicht zu sehr &#xfc;berladen!"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
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@@ -33154,7 +33613,7 @@
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-<node COLOR="#990000" CREATED="1522457000411" ID="ID_736034555" MODIFIED="1531584013653" TEXT="Basis-System">
+<node COLOR="#990000" CREATED="1522457000411" FOLDED="true" ID="ID_736034555" MODIFIED="1535892458078" TEXT="Basis-System">
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@@ -33529,7 +33988,7 @@
   </body>
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-<node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1534025106095">
+<node CREATED="1533997901765" ID="ID_361019548" MODIFIED="1535891607125">
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@@ -34090,166 +34549,14 @@
 <icon BUILTIN="smily_bad"/>
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 <node CREATED="1512925253328" ID="ID_922277724" MODIFIED="1518487921098" TEXT="JobTicket"/>
-<node CREATED="1512925246057" ID="ID_181262071" MODIFIED="1518487921098" TEXT="JobPlanning">
-<linktarget COLOR="#5379b5" DESTINATION="ID_181262071" ENDARROW="Default" ENDINCLINATION="41;130;" ID="Arrow_ID_1786254694" SOURCE="ID_1543264108" STARTARROW="Default" STARTINCLINATION="-100;0;"/>
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-<richcontent TYPE="NODE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      Thema: <b>Monaden</b>
-    </p>
-  </body>
-</html></richcontent>
-<arrowlink COLOR="#80c6b3" DESTINATION="ID_1499495468" ENDARROW="Default" ENDINCLINATION="-1812;12745;" ID="Arrow_ID_673178727" STARTARROW="None" STARTINCLINATION="4133;-10665;"/>
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-<node CREATED="1512925342773" ID="ID_1304424851" MODIFIED="1518487921098" TEXT="unbefriedigend"/>
-<node CREATED="1512925350379" ID="ID_21486020" MODIFIED="1518487921098" TEXT="zu offen und flexibel"/>
-<node CREATED="1512925358954" ID="ID_27814827" MODIFIED="1518487921098" TEXT="keine leitende Koh&#xe4;renz"/>
-<node CREATED="1512925366562" ID="ID_581707193" MODIFIED="1518487921098" TEXT="daher wie ein Gestr&#xfc;pp"/>
-</node>
-<node CREATED="1512925431577" ID="ID_1834933729" MODIFIED="1518487921098" TEXT="Iterator-Chain">
-<node CREATED="1512925436224" ID="ID_573800195" MODIFIED="1518487921098" TEXT="nice to have">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      geh&#246;rt zu dem Themenkomplex &quot;itertools&quot;
-    </p>
-    <p>
-      Python hat das auch, Java neuerdings auch
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1512925438992" ID="ID_1273839582" MODIFIED="1518487921098" TEXT="bisher nicht verwendet"/>
-</node>
-<node CREATED="1512925491857" ID="ID_652705156" MODIFIED="1518487921098" TEXT="Depth-fist / breadth fist">
-<node CREATED="1512925501216" ID="ID_1197407538" MODIFIED="1518487921098" TEXT="Programmier-&#xdc;bung"/>
-<node CREATED="1512925508183" ID="ID_1861334930" MODIFIED="1518487921098" TEXT="ohne innere Notwendigkeit"/>
-<node CREATED="1512925519653" ID="ID_1558680477" MODIFIED="1518487921098" TEXT="nicht verwendet"/>
-</node>
-<node CREATED="1512925529484" ID="ID_1844773201" MODIFIED="1518487921098" TEXT="SelfIntegration">
-<node CREATED="1512925547393" ID="ID_1866032394" MODIFIED="1518487921098" TEXT="Design-Sackgasse">
-<icon BUILTIN="stop-sign"/>
-<node CREATED="1512925769363" ID="ID_582578425" MODIFIED="1518487921098" TEXT="geht gegen die Natur der Dinge"/>
-<node CREATED="1512925732065" ID="ID_1377165331" MODIFIED="1518487921098" TEXT="verwirrendes Extension-API">
-<node CREATED="1512925805416" MODIFIED="1518487921098" TEXT="build(...).wrapping(...)"/>
-<node CREATED="1512925817645" MODIFIED="1518487921098" TEXT="build(...).usingSequence(...)"/>
-</node>
-</node>
-<node CREATED="1512925552137" ID="ID_43735106" MODIFIED="1518487921098" TEXT="wollte den Stack vermeiden">
-<icon BUILTIN="smiley-oh"/>
-<node CREATED="1512925568958" ID="ID_1805640819" MODIFIED="1518487921098" TEXT="was gar nicht geht"/>
-<node CREATED="1512925574782" ID="ID_22338010" MODIFIED="1518487921098" TEXT="Idee Inline-stack">
-<icon BUILTIN="idea"/>
-<node CREATED="1512925593195" ID="ID_1333973816" MODIFIED="1518487921098" TEXT="das w&#xe4;re aber eine reine Komponente"/>
-<node CREATED="1512925599402" ID="ID_551236508" MODIFIED="1518487921098" TEXT="Bauprinzip wie in UI-Coord">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...will sagen, es ist klar, wie man sowas machen kann.
-    </p>
-    <p>
-      Seinerzeit war mir das auch klar, aber ich wollte es nicht gleich ausprogrammieren.
-    </p>
-    <p>
-      Inzwischen kam dann das Thema UI-Coordinaten, und dort <i>habe</i>&#160;ich es ausprogrammiert,
-    </p>
-    <p>
-      und zwar direkt in die Low-Level-Schicht integriert, was nicht schlecht ist,
-    </p>
-    <p>
-      da eine Abstraktion hier sehr technisch werden w&#252;rde
-    </p>
-  </body>
-</html></richcontent>
-</node>
-</node>
-</node>
-<node CREATED="1512925864774" ID="ID_1543264108" MODIFIED="1518487921098" TEXT="verwendet f&#xfc;r JobPlanning">
-<arrowlink COLOR="#5379b5" DESTINATION="ID_181262071" ENDARROW="Default" ENDINCLINATION="41;130;" ID="Arrow_ID_1786254694" STARTARROW="Default" STARTINCLINATION="-100;0;"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1512925959074" ID="ID_30857289" MODIFIED="1518487921098" TEXT="TODO: abl&#xf6;sen durch IterTreeExplorer">
-<arrowlink COLOR="#83dfc7" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-1109;3887;" ID="Arrow_ID_1645152965" STARTARROW="None" STARTINCLINATION="2051;-176;"/>
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
-</node>
-<node CREATED="1512927162098" HGAP="93" ID="ID_1774532014" MODIFIED="1518487921098" TEXT="Einsichten" VSHIFT="37">
-<node CREATED="1512927175056" ID="ID_516152902" MODIFIED="1518487921098" TEXT="nicht das Gelbe vom Ei">
-<node CREATED="1512927204460" ID="ID_1166808329" MODIFIED="1518487921098" TEXT="kein wirkliches Design-Pattern"/>
-<node CREATED="1512927213962" ID="ID_1374430987" MODIFIED="1518487921098" TEXT="es fehlt die Nennkraft"/>
-</node>
-<node CREATED="1512927667023" ID="ID_67694617" MODIFIED="1518487921098" TEXT="Probleme">
-<node CREATED="1512927676973" ID="ID_1019834257" MODIFIED="1518487921098" TEXT="Mondaden sind eine rein technische L&#xf6;sung"/>
-<node CREATED="1512927687844" ID="ID_1680797364" MODIFIED="1518487921098" TEXT="sie vereinigen Themen ohne innere Verwadtschaft"/>
-<node CREATED="1512927766769" ID="ID_943419159" MODIFIED="1518487921098" TEXT="Zusammenspiel gebundener Funktionen">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...bindet die Betrachtung auf einen technischen Level,
-    </p>
-    <p>
-      und f&#252;hrt dazu, da&#223; die Abstraktion undicht wird
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1512927978133" ID="ID_1491853321" MODIFIED="1518487921098" TEXT="passen schlecht in C++">
-<node CREATED="1512928064858" ID="ID_1221151193" MODIFIED="1518487921098" TEXT="entweder massiv Metaprogrammierung"/>
-<node CREATED="1512928075920" ID="ID_491825441" MODIFIED="1518487921098" TEXT="oder man schafft ein runtime-Meta-System"/>
-</node>
-</node>
-<node CREATED="1512928100557" ID="ID_767453821" MODIFIED="1518487921098" TEXT="n&#xfc;tzlich">
-<node CREATED="1512928114707" ID="ID_21920250" MODIFIED="1518487921098" TEXT="um Zustand auszukoppeln">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      genau der Umstand,
-    </p>
-    <p>
-      da&#223; funktionale Sprachen von einer Zustands-Phobie getrieben sind,
-    </p>
-    <p>
-      macht Monaden n&#252;tzlich, um inh&#228;renten Zustand wegzuabstrahieren.
-    </p>
-    <p>
-      Das kann genutzt werden, um den Zustand einer Wechselwirkung
-    </p>
-    <p>
-      nach einer Seite der Glieder auszukoppeln.
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1512928357202" ID="ID_360277857" MODIFIED="1518487921098" TEXT="um Konfigurierbarkeit zu schaffen"/>
-<node CREATED="1512928258312" ID="ID_1469652928" MODIFIED="1518487921098" TEXT="um technische Details zu entflechten"/>
-</node>
-<node CREATED="1512928287812" ID="ID_212632305" MODIFIED="1518487921098" TEXT="Fazit">
-<node CREATED="1512928291555" ID="ID_1651357350" MODIFIED="1518487921098" TEXT="nur ein &#xbb;Monaden-Motiv&#xab; nutzen"/>
-<node CREATED="1512928301386" ID="ID_589389944" MODIFIED="1518487921098" TEXT="das Builder-Pattern in den Vordergrund stellen">
-<node CREATED="1512928322567" ID="ID_462235185" MODIFIED="1518487921098" TEXT="Builder ist ein wirkliches Pattern">
-<icon BUILTIN="idea"/>
-</node>
-</node>
-</node>
+<node CREATED="1512925246057" FOLDED="true" ID="ID_181262071" MODIFIED="1535892981517" TEXT="JobPlanning">
+<linktarget COLOR="#5379b5" DESTINATION="ID_181262071" ENDARROW="Default" ENDINCLINATION="-150;-386;" ID="Arrow_ID_1786254694" SOURCE="ID_1543264108" STARTARROW="Default" STARTINCLINATION="-1298;0;"/>
+<node CREATED="1535892806131" ID="ID_513357674" MODIFIED="1535892890103" TEXT="k&#xf6;nnte eine Monade sein.....?">
+<arrowlink COLOR="#6c79a2" DESTINATION="ID_1502143527" ENDARROW="Default" ENDINCLINATION="-522;742;" ID="Arrow_ID_616092581" STARTARROW="None" STARTINCLINATION="238;0;"/>
+<icon BUILTIN="help"/>
 </node>
+<node CREATED="1535891554587" ID="ID_185594200" MODIFIED="1535891663091" TEXT="entwerfe einen IterExplorer">
+<arrowlink COLOR="#625975" DESTINATION="ID_409327286" ENDARROW="Default" ENDINCLINATION="-843;1771;" ID="Arrow_ID_86323098" STARTARROW="None" STARTINCLINATION="-493;-1123;"/>
 </node>
 </node>
 </node>

From 757258fb3ac9507a71156b1385a4761efd64aa42 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 16:27:56 +0200
Subject: [PATCH 046/178] TreeExplorer: fix bug in Filter layer

Fillter needs to be re-evaluated, when an downstream entity requests
expandChildren() onto an upstream source. And obviously the ordering
of the chained calls was wrong here.

As it turns out, I had discovered that necessity to re-evaluate with
the Transformer layer. There is a dedicated test case for that, but
I cut short on verifying the filter in that situation as well, so
that piece of broken copy-n-paste code went through undetected.

This is in fact a rather esoteric corner case, because it is only
triggered when the expandChildren() call is passed through the filter.
When otoh the filter sits /after/ the entity generating the expandChildren()
calls, everything works as intended. And the latter is the typical standard
usage situation of an recursive evalutation algorithm: the filter is here
used as final part to drive the evaluation ahead and pick the solutions.
---
 src/lib/iter-tree-explorer.hpp            |  2 +-
 tests/library/iter-tree-explorer-test.cpp | 14 ++++++++------
 wiki/thinkPad.ichthyo.mm                  |  8 ++++----
 3 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 870747646..650db48cc 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -885,8 +885,8 @@ namespace lib {
         void
         expandChildren()
           {
-            pullFilter();
             SRC::expandChildren();
+            pullFilter();
           }
         
       public: /* === Iteration control API for IterableDecorator === */
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 02c5d4021..39e9e08d3 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -785,13 +785,15 @@ namespace test{
           
           // contrived example to verify interplay of filtering and child expansion;
           // especially note that the filter is re-evaluated after expansion happened.
-          cout << "VERIFY->"
-               <<materialise(
+          CHECK (materialise (
                     treeExplore(CountDown{10})
-                      .expand([](uint i){ return CountDown{i%4==0? i-1 : 0}; })
-//                      .filter([](uint i){ return i%2; })
-                      .expandAll()
-                    )<<endl;
+                      .expand([](uint i){ return CountDown{i%4==0? i-1 : 0}; })      // generate subtree at 8 and 4 ==> 10-9-8-7-6-5-4-3-2-1-3-2-1-7-6-5-4-3-2-1-3-2-1
+                      .filter([](uint i){ return i%2 == 0; })
+                      .expandAll()                                                   // Note: sends the expandChildren down through the filter
+                    )
+                 == "10-8-6-4-2-2-6-4-2-2");
+          
+          
           
           // another convoluted example to demonstrate
           // - a filter predicate with side-effect
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 172ad8055..c4a24a536 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30745,8 +30745,8 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894221015" ID="ID_977007729" MODIFIED="1535894381051" TEXT="Bug im Filter-Layer?">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535894221015" FOLDED="true" ID="ID_977007729" MODIFIED="1535898215661" TEXT="Bug im Filter-Layer">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535894239308" ID="ID_1809452702" MODIFIED="1535894251655" TEXT="Reihenfolge des Parent-Aufrufes in expandChildren()"/>
 <node CREATED="1535894252195" ID="ID_373085595" MODIFIED="1535894291490" TEXT="kommt mir komisch vor; pullFilter() sollte doch danach kommen"/>
 <node CREATED="1535894301413" ID="ID_1630859517" MODIFIED="1535894376961" TEXT="sieht nach copy-n-paste aus">
@@ -30780,8 +30780,8 @@
 </richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894385009" ID="ID_1130325761" MODIFIED="1535894392233" TEXT="Testfall schreiben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535894385009" ID="ID_1130325761" MODIFIED="1535898198283" TEXT="Testfall schreiben">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 94da0f627f3af36d09ef92cdd2ca87ce70f7b6ac Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 18:42:58 +0200
Subject: [PATCH 047/178] TreeExplorer: draft ability to remould the filter

The intention is to switch from the itertools-based filter
to the filter available in the TreeExplorer framework.
Thus "basically" we just need to copy the solution over,
since both are conceptually equivalent.

However...... :-(
The TreeExplorer framework is designed to be way more generic
and accepts basically everything as argument and tries to adapt apropriately.

This means we have to use a lot of intricate boilerplate code,
just to get the same effect that was possible in Itertools with
a simple and elegant in-place lambda assignment
---
 src/lib/iter-tree-explorer.hpp            |  27 +++-
 tests/library/iter-tree-explorer-test.cpp |  23 ++++
 wiki/thinkPad.ichthyo.mm                  | 149 +++++++++++++++++++++-
 3 files changed, 197 insertions(+), 2 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 650db48cc..9e4227c5f 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -526,7 +526,7 @@ namespace lib {
             
             template<typename ARG>
             Res
-            operator() (ARG& arg)
+            operator() (ARG& arg)  const
               {
                 auto accessArg = ArgAccessor<ARG>::build();
                 
@@ -910,6 +910,31 @@ namespace lib {
             pullFilter();
           }
         
+        
+        /* === Remould the Filter condition underway === */
+        
+        template<typename COND>
+        void
+        andFilter (COND conjunctiveClause)
+          {
+            using _ChainTraits = _BoundFunctor<COND,SRC>;
+            using Res = typename _ChainTraits::Res;
+            static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
+            
+            using ChainPredicate = typename _ChainTraits::Functor;
+            
+            FilterPredicate& firstClause = this->predicate_;
+            ChainPredicate chainClause{forward<COND> (conjunctiveClause)};
+            
+            
+            predicate_ = FilterPredicate{[firstClause, chainClause] (auto val)
+                                                                    {
+                                                                      return firstClause(val)
+                                                                         and chainClause(val);
+                                        }                           };
+            pullFilter();
+          }
+        
       private:
         SRC&
         srcIter()  const
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 39e9e08d3..5ef65bf60 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -276,6 +276,7 @@ namespace test{
           verify_combinedExpandTransform();
           verify_scheduledExpansion();
           verify_FilterIterator();
+          verify_FilterChanges();
           verify_asIterSource();
           verify_IterSource();
           
@@ -847,6 +848,28 @@ namespace test{
       
       
       
+      /** @test the filter layer can be re-configured on the fly */
+      void
+      verify_FilterChanges()
+        {
+          auto seq = treeExplore(CountDown{20})
+                       .filter([](uint){ return true; });
+          
+          auto takeEve = [](uint i){ return i%2 == 0; };
+          auto takeTrd = [](uint i){ return i%3 == 0; };
+          
+          CHECK (20 == *seq);
+          ++seq;
+          CHECK (19 == *seq);
+          CHECK (19 == *seq);
+          
+          seq.andFilter (takeEve);
+          CHECK (18 == *seq);
+        }
+      
+      
+      
+      
       /** @test package the resulting Iterator as automatically managed,
        *        polymorphic opaque entity implementing the IterSource interface.
        * The builder operations on TreeExplorer each generate a distinct, implementation
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c4a24a536..cff9e76e8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30840,7 +30840,8 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535893716894" TEXT="Aufgabe: Filter erweiterbar machen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535899964941" TEXT="Aufgabe: Filter erweiterbar machen">
+<icon BUILTIN="pencil"/>
 <node CREATED="1535893718194" ID="ID_872370459" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
 <node CREATED="1535893752174" ID="ID_386073545" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
 <richcontent TYPE="NOTE"><html>
@@ -30855,6 +30856,152 @@
 </html>
 </richcontent>
 </node>
+<node CREATED="1535903530421" ID="ID_384303362" MODIFIED="1535903535289" TEXT="Aua">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1535903536820" ID="ID_1343418651" MODIFIED="1535903541919" TEXT="das wird komplex..."/>
+<node CREATED="1535903542556" ID="ID_1721469481" MODIFIED="1535903551375" TEXT="der Filter-Layer ist hochgradig generisch"/>
+<node CREATED="1535904105560" ID="ID_1560346116" MODIFIED="1535904127224" TEXT="mu&#xdf; auch das Chain-Argument durch die Funktor-Traits schleusen"/>
+<node CREATED="1535904128524" ID="ID_1238934363" MODIFIED="1535904140074" TEXT="Code wird grausam">
+<icon BUILTIN="smiley-angry"/>
+<node CREATED="1535904143098" ID="ID_646600775" MODIFIED="1535904152669" TEXT="funktioniert, aber gewaltig aufgebl&#xe4;ht"/>
+<node CREATED="1535904153353" ID="ID_616241221" MODIFIED="1535904403272" TEXT="ganz nah am Segfault vorbei">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und das h&#228;ngt an einem hauchd&#252;nnen Faden,
+    </p>
+    <p>
+      und ist subtil bis zum geht nicht mehr....
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wenn man das Lambda einfach per [=] schreibt, und das Feld this-&gt;predicate_ verwendet,
+    </p>
+    <p>
+      dann wird this gecaptured (und das ist effektiv per Referenz). Wenn ich dann den
+    </p>
+    <p>
+      konstruierten Funktor an this-&gt;predicate_ zuweise, haben wir eine Endlos-Rekursion.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      L&#246;sung: man mu&#223; im lokalen Frame eine Referenz auf this-&gt;predicate definieren und binden.
+    </p>
+    <p>
+      Diese wird dann per Value gecaptured, was die gew&#252;nschte Kopie bewirkt.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1535904168943" ID="ID_1936705749" MODIFIED="1535904249188" TEXT="eine unn&#xf6;tige Kopie">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...mu&#223; den Chain-Funktor aus dem Template-Argument erzeugen,
+    </p>
+    <p>
+      und ihn dann in die per-Value-Closure des erzeugten neuen Lambda binden (=Kopie).
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Erst ab C++17 kann man Lambda-Captures pre move machen
+    </p>
+    <p>
+      (und auch daf&#252;r ist die Syntax grausam)
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1535904461720" ID="ID_317840110" MODIFIED="1535904468474" TEXT="will ich das wirklich.....?">
+<node CREATED="1535904470670" ID="ID_160594644" MODIFIED="1535904516890" TEXT="nat&#xfc;rlich nicht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...es soll blo&#223; einfach funktionieren!!!!!!!!!!!
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535906366785" ID="ID_1488862884" MODIFIED="1535906388442" TEXT="Komplexit&#xe4;t entsteht aus der Flexibilit&#xe4;t der Argumente">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535904517824" ID="ID_305725479" MODIFIED="1535904857801" TEXT="stattdessen Itertools-Filter verwenden?">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      keine gute Idee.
+    </p>
+    <p>
+      Dann verwenden wir im einen Funktor-Framework eine Filter-Komponente
+    </p>
+    <p>
+      aus dem anderen Framework, obwohl es direkt hier auch eine Filter-Komponente g&#228;be.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Au&#223;erdem habe ich immer noch die Hoffnung, irgendwann mal
+    </p>
+    <p>
+      die Itertools komplett durch den TreeExplorer abl&#246;sen zu k&#246;nnen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535906264259" TEXT="Auswege">
+<node CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535906279633" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
+<node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
+</node>
+<node CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535906294727" TEXT="Chain-Filter-Bau in HIlfsfunktion">
+<node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
+<node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535899882165" TEXT="Unit-Test (replizieren)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535899950863" TEXT="bestehende Aufrufe konsolidieren">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...so da&#223; es nur noch wenige Zugangs-Punkte zum unterliegenden Iterator gibt
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 <node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535893804419" TEXT="Auswertungs-Stack">

From b4edf8e33cb67b4a2dd1ce09dbee940ca9c5f984 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 19:28:11 +0200
Subject: [PATCH 048/178] TreeExplorer: find a way to extract the boilerplate

...based on generic lambdas, which are effectively template classes themselves
---
 src/lib/iter-tree-explorer.hpp | 14 +++++++++-----
 wiki/thinkPad.ichthyo.mm       | 22 ++++++++++++++++++++++
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 9e4227c5f..be6f25da0 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -926,12 +926,16 @@ namespace lib {
             FilterPredicate& firstClause = this->predicate_;
             ChainPredicate chainClause{forward<COND> (conjunctiveClause)};
             
+            auto buildCombinedClause = [](auto first, auto second)
+                                          {
+                                            return [=](auto val)
+                                                      {
+                                                        return first(val)
+                                                           and second(val);
+                                                      };
+                                          };
             
-            predicate_ = FilterPredicate{[firstClause, chainClause] (auto val)
-                                                                    {
-                                                                      return firstClause(val)
-                                                                         and chainClause(val);
-                                        }                           };
+            predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
             pullFilter();
           }
         
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index cff9e76e8..d5494fb5d 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30977,10 +30977,32 @@
 <node CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535906264259" TEXT="Auswege">
 <node CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535906279633" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
 <node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
+<node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
+<node CREATED="1535909145091" ID="ID_23855152" MODIFIED="1535909185418">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Name: <b>mutableFilter</b>()
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
 </node>
 <node CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535906294727" TEXT="Chain-Filter-Bau in HIlfsfunktion">
 <node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
 <node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
+<node CREATED="1535909021163" ID="ID_1776922208" MODIFIED="1535909030226" TEXT="geschachtelte generische Lambdas verwenden">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535909041497" ID="ID_911444458" MODIFIED="1535909052069" TEXT="AUA&#xb3;">
+<icon BUILTIN="ksmiletris"/>
+<node CREATED="1535909192572" ID="ID_1938820560" MODIFIED="1535909197055" TEXT="aber es geht...."/>
+</node>
 </node>
 </node>
 </node>

From 8f70b4e902b543f7e5f8a9d10304d5a9c590c7ac Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 20:27:19 +0200
Subject: [PATCH 049/178] TreeExplorer: prototype for the extracted boilerplate
 helper

a quite convoluted construct built from several nested generic lambdas.
When investigated in the debugger, the observed addresses and the
invoked code looks sane and as expected.
---
 src/lib/iter-tree-explorer.hpp            | 66 +++++++++++++----------
 tests/library/iter-tree-explorer-test.cpp |  2 +
 wiki/thinkPad.ichthyo.mm                  | 52 ++++++++++++++++--
 3 files changed, 88 insertions(+), 32 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index be6f25da0..da1d676b5 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -911,34 +911,6 @@ namespace lib {
           }
         
         
-        /* === Remould the Filter condition underway === */
-        
-        template<typename COND>
-        void
-        andFilter (COND conjunctiveClause)
-          {
-            using _ChainTraits = _BoundFunctor<COND,SRC>;
-            using Res = typename _ChainTraits::Res;
-            static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
-            
-            using ChainPredicate = typename _ChainTraits::Functor;
-            
-            FilterPredicate& firstClause = this->predicate_;
-            ChainPredicate chainClause{forward<COND> (conjunctiveClause)};
-            
-            auto buildCombinedClause = [](auto first, auto second)
-                                          {
-                                            return [=](auto val)
-                                                      {
-                                                        return first(val)
-                                                           and second(val);
-                                                      };
-                                          };
-            
-            predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
-            pullFilter();
-          }
-        
       private:
         SRC&
         srcIter()  const
@@ -955,6 +927,44 @@ namespace lib {
             while (srcIter() and not predicate_(srcIter()))
               ++srcIter();
           }
+        
+        
+        
+      public: /* === API to Remould the Filter condition underway === */
+        
+        template<typename COND>
+        void
+        andFilter (COND&& conjunctiveClause)
+          {
+            remouldFilter (forward<COND> (conjunctiveClause)
+                          ,[](auto first, auto chain)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return first(val)
+                                              and chain(val);
+                                         };
+                             });
+          }
+        
+        
+      private:
+        template<typename COND, class COMB>
+        void
+        remouldFilter (COND&& additionalClause, COMB buildCombinedClause)
+          {
+            using _ChainTraits = _BoundFunctor<COND,SRC>;
+            using Res = typename _ChainTraits::Res;
+            static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
+            
+            using ChainPredicate = typename _ChainTraits::Functor;
+            
+            FilterPredicate& firstClause = this->predicate_;
+            ChainPredicate chainClause{forward<COND> (additionalClause)};
+            
+            predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
+            pullFilter();
+          }
       };
     
     
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 5ef65bf60..6f25ed072 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -865,6 +865,8 @@ namespace test{
           
           seq.andFilter (takeEve);
           CHECK (18 == *seq);
+          ++seq;
+          CHECK (16 == *seq);
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d5494fb5d..13adccc8c 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30974,7 +30974,9 @@
 </richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535906264259" TEXT="Auswege">
+</node>
+<node COLOR="#338800" CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535909947735" TEXT="Auswege">
+<icon BUILTIN="idea"/>
 <node CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535906279633" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
 <node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
 <node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
@@ -30988,12 +30990,12 @@
       Name: <b>mutableFilter</b>()
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535906294727" TEXT="Chain-Filter-Bau in HIlfsfunktion">
+<node COLOR="#338800" CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535909918916" TEXT="Chain-Filter-Bau in HIlfsfunktion">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
 <node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
 <node CREATED="1535909021163" ID="ID_1776922208" MODIFIED="1535909030226" TEXT="geschachtelte generische Lambdas verwenden">
@@ -31002,6 +31004,48 @@
 <node CREATED="1535909041497" ID="ID_911444458" MODIFIED="1535909052069" TEXT="AUA&#xb3;">
 <icon BUILTIN="ksmiletris"/>
 <node CREATED="1535909192572" ID="ID_1938820560" MODIFIED="1535909197055" TEXT="aber es geht...."/>
+<node COLOR="#338800" CREATED="1535909967725" ID="ID_745154448" MODIFIED="1535912743392" TEXT="im Debugger verifizieren!">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...sieht gut aus.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Folgendes habe ich gesehen
+    </p>
+    <ul>
+      <li>
+        zu Beginn zeigt das eingebettete Funktor-Objekt auf eine Position auf dem Stack
+      </li>
+      <li>
+        beim Aufrufen der andFilter()-Funktion werden diverse Funktoren kopiert,<br />wobei nacheinander die (zu erwartenden) Argumente als Quelle auftauchen<br />
+      </li>
+      <li>
+        danach hat sich der Funktor ge&#228;ndert: er zeigt nun auf eine Position auf dem Heap<br />
+      </li>
+      <li>
+        der bisherige Funktor wurde mit der Closure des zusammengesetzten Funktors kollabiert (hat gleiche Addresse)<br />
+      </li>
+      <li>
+        der Chain-Funktor hat eine Closure bekommen, die ebenfalls Heap-alloziert ist.<br />das deutet darauf hin, da&#223; das capturen per copy funktioniert hat<br />
+      </li>
+      <li>
+        Beim Aufruf steppen wir nacheinander erst in den kombinierten Funktor,<br />und von dort wie erwartet in die beiden Lambdas.
+      </li>
+      <li>
+        <br />
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From e29d9ae19e48dab84449f70d090c4ebc1dad3a78 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 20:40:49 +0200
Subject: [PATCH 050/178] TreeExplorer: better package this very specific code
 as subclass

while this is basically just code code cosmetics,
at least it marks this as a very distinct special case,
and keeps the API for the standard Filter layer clean.
---
 src/lib/iter-tree-explorer.hpp            | 33 +++++++++++++++++++----
 tests/library/iter-tree-explorer-test.cpp |  2 +-
 wiki/thinkPad.ichthyo.mm                  | 11 ++++++--
 3 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index da1d676b5..621f7b5be 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -863,6 +863,7 @@ namespace lib {
         using Res = typename _Traits::Res;
         static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
         
+      protected:
         using FilterPredicate = typename _Traits::Functor;
         
         FilterPredicate predicate_;
@@ -911,7 +912,7 @@ namespace lib {
           }
         
         
-      private:
+      protected:
         SRC&
         srcIter()  const
           {
@@ -927,7 +928,17 @@ namespace lib {
             while (srcIter() and not predicate_(srcIter()))
               ++srcIter();
           }
-        
+      };
+    
+    
+    
+    template<class SRC, class FUN>
+    class MutableFilter
+      : public Filter<SRC,FUN>
+      {
+        using _Base = Filter<SRC,FUN>;
+      public:
+        using _Base::Filter;
         
         
       public: /* === API to Remould the Filter condition underway === */
@@ -957,13 +968,14 @@ namespace lib {
             using Res = typename _ChainTraits::Res;
             static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
             
+            using FilterPredicate = typename _Base::FilterPredicate;
             using ChainPredicate = typename _ChainTraits::Functor;
             
-            FilterPredicate& firstClause = this->predicate_;
+            FilterPredicate& firstClause = Filter<SRC,FUN>::predicate_;
             ChainPredicate chainClause{forward<COND> (additionalClause)};
             
-            predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
-            pullFilter();
+            _Base::predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
+            _Base::pullFilter();
           }
       };
     
@@ -1265,6 +1277,17 @@ namespace lib {
         }
       
       
+      template<class FUN>
+      auto
+      mutableFilter (FUN&& filterPredicate)
+        {
+          using ResCore = iter_explorer::MutableFilter<SRC, FUN>;
+          using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
+          
+          return TreeExplorer<ResIter> (ResCore {move(*this), forward<FUN>(filterPredicate)});
+        }
+      
+      
       /** _terminal builder_ to package the processing pipeline as IterSource.
        * Invoking this function moves the whole iterator compound, as assembled by the preceding
        * builder calls, into heap allocated memory and returns a [iterator front-end](\ref IterExploreSource).
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 6f25ed072..ea4bda8b5 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -853,7 +853,7 @@ namespace test{
       verify_FilterChanges()
         {
           auto seq = treeExplore(CountDown{20})
-                       .filter([](uint){ return true; });
+                       .mutableFilter([](uint){ return true; });
           
           auto takeEve = [](uint i){ return i%2 == 0; };
           auto takeTrd = [](uint i){ return i%3 == 0; };
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 13adccc8c..38890073b 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30977,7 +30977,8 @@
 </node>
 <node COLOR="#338800" CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535909947735" TEXT="Auswege">
 <icon BUILTIN="idea"/>
-<node CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535906279633" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
+<node COLOR="#338800" CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535913504313" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
 <node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
 <node CREATED="1535909145091" ID="ID_23855152" MODIFIED="1535909185418">
@@ -31051,10 +31052,16 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535899882165" TEXT="Unit-Test (replizieren)">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535913524436" TEXT="Unit-Test (replizieren)">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535913527837" ID="ID_1506533000" MODIFIED="1535913542932" TEXT="anlegen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535913541204" TEXT="andere F&#xe4;ll auch covern">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535899950863" TEXT="bestehende Aufrufe konsolidieren">
 <richcontent TYPE="NOTE"><html>
   <head>

From 90c0f43cfda28853e3d858f3e7068cbe1204a1c7 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 2 Sep 2018 22:34:30 +0200
Subject: [PATCH 051/178] TreeExplorer: code all the combination cases

...this solution works, but has a shortcoming:
the type of the passed lambdas is effectively pinned to conform
with the signature of the first lambda used initially when building the filter.

Well, this is the standard use case, but it kind of turns all the
tricky warpping and re-binding into a nonsense excercise; in this form
the filter can only be used in the monadic case (value -> bool).

Especially this rules out all the advanced usages, where the filter
collaborates with the internals of the source.
---
 src/lib/iter-tree-explorer.hpp            | 132 +++++++++++++++++++++-
 tests/library/iter-tree-explorer-test.cpp |  31 +++++
 wiki/thinkPad.ichthyo.mm                  |  39 ++++++-
 3 files changed, 196 insertions(+), 6 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 621f7b5be..2c70fdff4 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -725,7 +725,7 @@ namespace lib {
     
     
     /**
-     * @internal extension to the Expander decorator to perform expansion delayed on next iteration. 
+     * @internal extension to the Expander decorator to perform expansion delayed on next iteration.
      */
     template<class SRC>
     class ScheduledExpander
@@ -932,6 +932,17 @@ namespace lib {
     
     
     
+    /**
+     * @internal Special variant of the \ref Filter Decorator to allow for dynamic remoulding.
+     * This covers a rather specific use case, where we want to remould or even exchange the
+     * Filter predicate in the middle of an ongoing iteration. Such a remoulding can be achieved
+     * by binding the existing (opaque) filter predicate into a new combined lambda, thereby
+     * capturing it _by value._ After building, this remoulded version can be assigned to the
+     * original filter functor, under the assumption that both are roughly compatible. Moreover,
+     * since we wrap the actual lambda into an adapter, allowing for generic lambdas to be used
+     * as filter predicates, this setup allows for a lot of leeway regarding the concrete predicates.
+     * @note whenever the filter is remoulded, the invariant is immediately [re-established](\ref Filter::pullFilter() )
+     */
     template<class SRC, class FUN>
     class MutableFilter
       : public Filter<SRC,FUN>
@@ -943,6 +954,7 @@ namespace lib {
         
       public: /* === API to Remould the Filter condition underway === */
         
+        /** remould existing predicate to require in addition the given clause to hold */
         template<typename COND>
         void
         andFilter (COND&& conjunctiveClause)
@@ -958,8 +970,101 @@ namespace lib {
                              });
           }
         
+        /** remould existing predicate to require in addition the negation of the given clause to hold */
+        template<typename COND>
+        void
+        andNotFilter (COND&& conjunctiveClause)
+          {
+            remouldFilter (forward<COND> (conjunctiveClause)
+                          ,[](auto first, auto chain)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return first(val)
+                                              and not chain(val);
+                                         };
+                             });
+          }
+        
+        /** remould existing predicate to require either the old _OR_ the given new clause to hold */
+        template<typename COND>
+        void
+        orFilter (COND&& disjunctiveClause)
+          {
+            remouldFilter (forward<COND> (disjunctiveClause)
+                          ,[](auto first, auto chain)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return first(val)
+                                               or chain(val);
+                                         };
+                             });
+          }
+        
+        /** remould existing predicate to require either the old _OR_ the negation of a new clause to hold */
+        template<typename COND>
+        void
+        orNotFilter (COND&& disjunctiveClause)
+          {
+            remouldFilter (forward<COND> (disjunctiveClause)
+                          ,[](auto first, auto chain)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return first(val)
+                                               or not chain(val);
+                                         };
+                             });
+          }
+        
+        /** remould existing predicate to negate the meaning of the existing clause */
+        void
+        flipFilter()
+          {
+            auto dummy = [](auto){ return false; };
+            remouldFilter (dummy
+                          ,[](auto currentFilter, auto)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return not currentFilter(val);
+                                         };
+                             });
+          }
+        
+        /** replace the existing predicate with the given, entirely different predicate */
+        template<typename COND>
+        void
+        setNewFilter (COND&& entirelyDifferentPredicate)
+          {
+            remouldFilter (forward<COND> (entirelyDifferentPredicate)
+                          ,[](auto, auto chain)
+                             {
+                               return [=](auto val)
+                                         {
+                                           return chain(val);
+                                         };
+                             });
+          }
+        
         
       private:
+        /** @internal boilerplate to remould the filter predicate in-place
+         * @param additionalClause additional functor object to combine
+         * @param buildCombinedClause a _generic lambda_ (important!) to define
+         *        how exactly the old and the new predicate are to be combined
+         * @note the actual combination logic is handed in as generic lambda, which
+         *       essentially is a template class, and this allows to bind to any kind
+         *       of function objects or lambdas. This combination closure requires a
+         *       specific setup: when invoked with the existing and the new functor
+         *       as argument, it needs to build a new _likewise generic_ lambda
+         *       to perform the combined evaluation.
+         * @warning the handed-in lambda `buildCombinedClause` must capture its
+         *       arguments, the existing functors _by value._ This is the key piece
+         *       in the puzzle, since it effectively moves the existing functor into
+         *       a new heap allocated storage.
+         */
         template<typename COND, class COMB>
         void
         remouldFilter (COND&& additionalClause, COMB buildCombinedClause)
@@ -971,15 +1076,17 @@ namespace lib {
             using FilterPredicate = typename _Base::FilterPredicate;
             using ChainPredicate = typename _ChainTraits::Functor;
             
-            FilterPredicate& firstClause = Filter<SRC,FUN>::predicate_;
-            ChainPredicate chainClause{forward<COND> (additionalClause)};
+            FilterPredicate& firstClause = _Base::predicate_;              // pick up the existing filter predicate
+            ChainPredicate chainClause{forward<COND> (additionalClause)};  // wrap the extension predicate in a similar way
             
             _Base::predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
-            _Base::pullFilter();
+            _Base::pullFilter();                                           // pull to re-establish the Invariant
           }
       };
     
     
+    
+    
     /**
      * Interface to indicate and expose the ability for _child expansion_.
      * This interface is used when packaging a TreeExplorer pipeline opaquely into IterSource.
@@ -1222,7 +1329,7 @@ namespace lib {
         }
       
       
-      /** extension functionality to be used on top of expand(), to perform expansion on next iteration. 
+      /** extension functionality to be used on top of expand(), to perform expansion on next iteration.
        * When configured, an expandChildren() call will not happen immediately, but rather in place of
        * the next iteration step. Basically child expansion _is kind of a special iteration step,_ and
        * thus all we need to do is add another layer with a boolean state flag, which catches the
@@ -1277,6 +1384,21 @@ namespace lib {
         }
       
       
+      /** attach a special filter adapter, allowing to change the filter predicate while iterating.
+       * While otherwise this filter layer behaves exactly like the [standard version](\ref #filter),
+       * it exposes a special API to augment or even completely switch the filter predicate while
+       * in the middle of iterator evaluation. Of course, the underlying iterator is not re-evaluated
+       * from start (our iterators can not be reset), and so the new filter logic takes effect starting
+       * from the current element. Whenever the filter is remoulded, it is immediately re-evaluated,
+       * possibly causing the underlying iterator to be pulled until an element matching the condition
+       * is found.
+       * @see MutableFilter::andFilter
+       * @see MutableFilter::andNotFilter
+       * @see MutableFilter::orFilter
+       * @see MutableFilter::orNotFilter
+       * @see MutableFilter::flipFilter
+       * @see MutableFilter::setNewFilter
+       */
       template<class FUN>
       auto
       mutableFilter (FUN&& filterPredicate)
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index ea4bda8b5..efbce194c 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -867,6 +867,37 @@ namespace test{
           CHECK (18 == *seq);
           ++seq;
           CHECK (16 == *seq);
+          
+          seq.andFilter (takeTrd);
+          CHECK (12 == *seq);
+          
+          seq.flipFilter();
+          CHECK (11 == *seq);   // not divisible (by 2 AND by 3)
+          ++seq;
+          CHECK (10 == *seq);
+          
+          seq.setNewFilter (takeTrd);
+          CHECK ( 9 == *seq);
+          ++seq;
+          CHECK ( 6 == *seq);
+          
+          seq.orNotFilter (takeEve);
+          CHECK ( 6 == *seq);
+          ++seq;
+          CHECK ( 5 == *seq);
+          ++seq;
+          CHECK ( 3 == *seq);
+          
+//        string buff{"."};
+//        seq.andNotFilter ([&](CountDown& core)
+//                            {
+//                              buff += util::toString(core.p) + ".";
+//                              --core.p;
+//                              return core.p % 2;
+//                            });
+//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
+//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
+//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 38890073b..0850354f6 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31051,13 +31051,50 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535919506060" ID="ID_308901003" MODIFIED="1535920180860" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<icon BUILTIN="broken-line"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919540560" ID="ID_544134703" MODIFIED="1535920188703" TEXT="geht nicht(?)">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1535919549942" ID="ID_809087906" MODIFIED="1535919754360" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...f&#252;r das dort hineingereichte Funktor-Objekt wird der Argument-Accessor ausgew&#228;hlt (Metaprogrammierung).
+    </p>
+    <p>
+      Er ist dann im Typ des Wrappers == _Traits::Functor codiert.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wir k&#246;nnen zwar den im Wrapper enthaltenen Funktor neu zuweisen (in gewissen Grenzen),
+    </p>
+    <p>
+      aber er wird stets den zu Beginn gew&#228;hlten Argument-Accessor nehmen.
+    </p>
+    <p>
+      Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919835337" ID="ID_984434298" MODIFIED="1535920192370" TEXT="Ausweg: doppelt wrappen?">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535913524436" TEXT="Unit-Test (replizieren)">
 <icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1535913527837" ID="ID_1506533000" MODIFIED="1535913542932" TEXT="anlegen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535913541204" TEXT="andere F&#xe4;ll auch covern">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535919483699" TEXT="andere F&#xe4;lle auch covern">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>

From be7f47d5b7a16fa644d28f5e3a1e693495394ac0 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 3 Sep 2018 00:27:21 +0200
Subject: [PATCH 052/178] TreeExplorer: rework the solution to allow for
 arbitrary functor types

outift the Filter base class with the most generic form of the Functor
wrapper, and rather wrap each functor argument individually. This allows
then to combine various kinds of functors
---
 src/lib/iter-tree-explorer.hpp            | 40 +++++++++++++++++++----
 tests/library/iter-tree-explorer-test.cpp | 23 +++++++------
 wiki/thinkPad.ichthyo.mm                  | 22 ++++++++++++-
 3 files changed, 67 insertions(+), 18 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 2c70fdff4..eaad1db79 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -941,15 +941,41 @@ namespace lib {
      * original filter functor, under the assumption that both are roughly compatible. Moreover,
      * since we wrap the actual lambda into an adapter, allowing for generic lambdas to be used
      * as filter predicates, this setup allows for a lot of leeway regarding the concrete predicates.
-     * @note whenever the filter is remoulded, the invariant is immediately [re-established](\ref Filter::pullFilter() )
+     * @note whenever the filter is remoulded, the invariant is immediately
+     *       [re-established](\ref Filter::pullFilter() ), possibly forwarding the sequence
+     *       to the next element approved by the new version of the filter.
+     * @remarks filter predicates can be specified in a wide variety of forms, and will be adapted
+     *       automatically. This flexibility also holds for any of the additional clauses provided
+     *       for remoulding the filter. Especially this means that functors of different kinds can
+     *       be mixed and combined. To allow for this flexibility, we need to drive the _base class_
+     *       with the most general form of a predicate functor, corresponding to `bool<SRC&>`.
+     *       Hereby we exploit the fact that the _wrapped filter,_ i.e. the Functor type constructed
+     *       in the _BoundFunctor traits, boils down to that most generic form, adapting the arguments
+     *       automatically. Thus the initial functor, the one passed to the ctor of this class, is
+     *       effectively wrapped twice, so it can be combined later on with any other form and
+     *       shape of functor. And since everything is inline, the compiler will remove any
+     *       overhead resulting from this redundant wrapping.
      */
     template<class SRC, class FUN>
     class MutableFilter
-      : public Filter<SRC,FUN>
+      : public Filter<SRC, typename _BoundFunctor<FUN,SRC>::Functor>
       {
-        using _Base = Filter<SRC,FUN>;
+        using _Traits = _BoundFunctor<FUN,SRC>;
+        using FilterPredicate = typename _Traits::Functor;
+        using _Base = Filter<SRC,FilterPredicate>;
+        
+        static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
+        using Res = typename _Traits::Res;
+        static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
+        
+        
       public:
-        using _Base::Filter;
+        MutableFilter() =default;
+        // inherited default copy operations
+        
+        MutableFilter (SRC&& dataSrc, FUN&& filterFun)
+          : _Base{move (dataSrc), FilterPredicate{forward<FUN> (filterFun)}}
+          { }
         
         
       public: /* === API to Remould the Filter condition underway === */
@@ -1073,13 +1099,13 @@ namespace lib {
             using Res = typename _ChainTraits::Res;
             static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
             
-            using FilterPredicate = typename _Base::FilterPredicate;
+            using WrappedPredicate = typename _Base::FilterPredicate;
             using ChainPredicate = typename _ChainTraits::Functor;
             
-            FilterPredicate& firstClause = _Base::predicate_;              // pick up the existing filter predicate
+            WrappedPredicate& firstClause = _Base::predicate_;             // pick up the existing filter predicate
             ChainPredicate chainClause{forward<COND> (additionalClause)};  // wrap the extension predicate in a similar way
             
-            _Base::predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
+            _Base::predicate_ = WrappedPredicate{buildCombinedClause (firstClause, chainClause)};
             _Base::pullFilter();                                           // pull to re-establish the Invariant
           }
       };
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index efbce194c..48f4b951b 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -888,16 +888,19 @@ namespace test{
           ++seq;
           CHECK ( 3 == *seq);
           
-//        string buff{"."};
-//        seq.andNotFilter ([&](CountDown& core)
-//                            {
-//                              buff += util::toString(core.p) + ".";
-//                              --core.p;
-//                              return core.p % 2;
-//                            });
-//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
-//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
-//        cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
+          string buff{"."};
+          seq.andNotFilter ([&](CountDown& core)
+                              {
+                                buff += util::toString(core.p) + ".";
+                                --core.p;
+                                return core.p % 2;
+                              });
+          cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
+          ++seq;
+          cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
+          ++seq;
+          CHECK (isnil (seq));
+          VERIFY_ERROR (ITER_EXHAUST, *seq );
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0850354f6..78931d309 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31086,6 +31086,26 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919835337" ID="ID_984434298" MODIFIED="1535920192370" TEXT="Ausweg: doppelt wrappen?">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1535923167297" ID="ID_1611885187" MODIFIED="1535923219590" TEXT="Basis-Filter sieht unspezifische Form des Pr&#xe4;dikates"/>
+<node CREATED="1535923237336" ID="ID_873685254" MODIFIED="1535923251434" TEXT="im Funktor steckt eingewickelt eine spezifische Form"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535924949587" ID="ID_283543674" MODIFIED="1535925042250" TEXT="L&#xf6;sung">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535924955458" ID="ID_257130301" MODIFIED="1535927205707" TEXT="Typ des gewrappten Funktors konstruieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924963017" ID="ID_1923686219" MODIFIED="1535927208519" TEXT="diesen schon in die Instanz der Basisklasse einflie&#xdf;en lassen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924983038" ID="ID_966924861" MODIFIED="1535927210570" TEXT="Konstruktor eigens definieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924991781" ID="ID_28842573" MODIFIED="1535927212273" TEXT="inline wrappen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535925016969" ID="ID_214947623" MODIFIED="1535927239938" TEXT="der Rest m&#xfc;&#xdf;te von selber funktionieren...">
+<icon BUILTIN="idea"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -31116,7 +31136,7 @@
 </node>
 <node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535893804419" TEXT="Auswertungs-Stack">
 <node CREATED="1535893826972" ID="ID_352546105" MODIFIED="1535894073967" TEXT="aktueller Frame">
-<node CREATED="1535894074891" ID="ID_1972842519" MODIFIED="1535894075798" TEXT="== aktuel wirksamer Suchfilter"/>
+<node CREATED="1535894074891" ID="ID_1972842519" MODIFIED="1535923151832" TEXT="== aktuell wirksamer Suchfilter"/>
 <node CREATED="1535894076546" ID="ID_880245387" MODIFIED="1535894084445" TEXT="schie&#xdf;t Suchposition ein"/>
 </node>
 <node CREATED="1535893989214" ID="ID_875812160" MODIFIED="1535894010499">

From 604ffbf73c123715f6bfe2e426e23f3f87596618 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 3 Sep 2018 01:52:07 +0200
Subject: [PATCH 053/178] TreeExplorer: fix a bug and finish the feature

we did an unnecessary copy of the argument, which was uncovered
by the test case manipulating the state core.


Whew.
Now we have a beautiful new overengineered solution
---
 src/lib/iter-tree-explorer.hpp            | 12 +++---
 tests/library/iter-tree-explorer-test.cpp | 27 +++++++-----
 wiki/thinkPad.ichthyo.mm                  | 50 ++++++++++++++---------
 3 files changed, 54 insertions(+), 35 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index eaad1db79..07d9c9a75 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -988,7 +988,7 @@ namespace lib {
             remouldFilter (forward<COND> (conjunctiveClause)
                           ,[](auto first, auto chain)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return first(val)
                                               and chain(val);
@@ -1004,7 +1004,7 @@ namespace lib {
             remouldFilter (forward<COND> (conjunctiveClause)
                           ,[](auto first, auto chain)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return first(val)
                                               and not chain(val);
@@ -1020,7 +1020,7 @@ namespace lib {
             remouldFilter (forward<COND> (disjunctiveClause)
                           ,[](auto first, auto chain)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return first(val)
                                                or chain(val);
@@ -1036,7 +1036,7 @@ namespace lib {
             remouldFilter (forward<COND> (disjunctiveClause)
                           ,[](auto first, auto chain)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return first(val)
                                                or not chain(val);
@@ -1052,7 +1052,7 @@ namespace lib {
             remouldFilter (dummy
                           ,[](auto currentFilter, auto)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return not currentFilter(val);
                                          };
@@ -1067,7 +1067,7 @@ namespace lib {
             remouldFilter (forward<COND> (entirelyDifferentPredicate)
                           ,[](auto, auto chain)
                              {
-                               return [=](auto val)
+                               return [=](auto& val)
                                          {
                                            return chain(val);
                                          };
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 48f4b951b..601cf5f3c 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -848,7 +848,7 @@ namespace test{
       
       
       
-      /** @test the filter layer can be re-configured on the fly */
+      /** @test a special filter layer which can be re-configured on the fly */
       void
       verify_FilterChanges()
         {
@@ -869,7 +869,7 @@ namespace test{
           CHECK (16 == *seq);
           
           seq.andFilter (takeTrd);
-          CHECK (12 == *seq);
+          CHECK (12 == *seq);   //  is divisible (by 2 AND by 3)
           
           seq.flipFilter();
           CHECK (11 == *seq);   // not divisible (by 2 AND by 3)
@@ -884,22 +884,29 @@ namespace test{
           seq.orNotFilter (takeEve);
           CHECK ( 6 == *seq);
           ++seq;
-          CHECK ( 5 == *seq);
+          CHECK ( 5 == *seq);   // disjunctive condition actually weakens the filter
           ++seq;
           CHECK ( 3 == *seq);
           
+          // NOTE: arbitrary functors can be used/combined,
+          //       since they are adapted individually.
+          // To demonstrate this, we use a functor accessing and
+          // manipulating the state core by side effect...
           string buff{"."};
           seq.andNotFilter ([&](CountDown& core)
                               {
                                 buff += util::toString(core.p) + ".";
-                                --core.p;
-                                return core.p % 2;
+                                --core.p;                              // manipulate state core
+                                return core.p % 2;                     // return a number, not bool
                               });
-          cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
-          ++seq;
-          cout << "URGS: "<<*seq<< " ..."<<buff<<endl;
-          ++seq;
-          CHECK (isnil (seq));
+          
+          CHECK ( 2 == *seq);                   // value in the core has been manipulated
+          CHECK (".3." == buff);                // the filter has been invoked once, and saw core == 3
+          
+          ++seq;                                // core == 2 is filtered by the existing other filter (== not take even)
+          CHECK (".3.1." == buff);              // the filter has been invoked again, and saw core == 1
+          CHECK (0 == seq.p);                   // ...which he manipulated, so that core == 0
+          CHECK (isnil (seq));                  // .....and thus iteration end is detected
           VERIFY_ERROR (ITER_EXHAUST, *seq );
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 78931d309..309294c49 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30840,8 +30840,8 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535899964941" TEXT="Aufgabe: Filter erweiterbar machen">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535932142834" TEXT="Aufgabe: Filter erweiterbar machen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535893718194" ID="ID_872370459" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
 <node CREATED="1535893752174" ID="ID_386073545" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
 <richcontent TYPE="NOTE"><html>
@@ -30856,7 +30856,7 @@
 </html>
 </richcontent>
 </node>
-<node CREATED="1535903530421" ID="ID_384303362" MODIFIED="1535903535289" TEXT="Aua">
+<node COLOR="#338800" CREATED="1535903530421" ID="ID_384303362" MODIFIED="1535932193036" TEXT="Aua">
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1535903536820" ID="ID_1343418651" MODIFIED="1535903541919" TEXT="das wird komplex..."/>
 <node CREATED="1535903542556" ID="ID_1721469481" MODIFIED="1535903551375" TEXT="der Filter-Layer ist hochgradig generisch"/>
@@ -30927,7 +30927,7 @@
 </richcontent>
 </node>
 </node>
-<node CREATED="1535904461720" ID="ID_317840110" MODIFIED="1535904468474" TEXT="will ich das wirklich.....?">
+<node CREATED="1535904461720" FOLDED="true" ID="ID_317840110" MODIFIED="1535932207865" TEXT="will ich das wirklich.....?">
 <node CREATED="1535904470670" ID="ID_160594644" MODIFIED="1535904516890" TEXT="nat&#xfc;rlich nicht">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -30977,7 +30977,7 @@
 </node>
 <node COLOR="#338800" CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535909947735" TEXT="Auswege">
 <icon BUILTIN="idea"/>
-<node COLOR="#338800" CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535913504313" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
+<node COLOR="#338800" CREATED="1535906265911" FOLDED="true" ID="ID_442265155" MODIFIED="1535932222887" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
 <node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
@@ -30995,7 +30995,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535909918916" TEXT="Chain-Filter-Bau in HIlfsfunktion">
+<node COLOR="#338800" CREATED="1535906283948" FOLDED="true" ID="ID_367978731" MODIFIED="1535932223855" TEXT="Chain-Filter-Bau in HIlfsfunktion">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
 <node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
@@ -31051,9 +31051,10 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535919506060" ID="ID_308901003" MODIFIED="1535920180860" TEXT="heterogene Pr&#xe4;dikat-Typen">
-<icon BUILTIN="broken-line"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919540560" ID="ID_544134703" MODIFIED="1535920188703" TEXT="geht nicht(?)">
+<node COLOR="#338800" CREATED="1535919506060" FOLDED="true" ID="ID_308901003" MODIFIED="1535932218407" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535919540560" ID="ID_544134703" MODIFIED="1535932049581" TEXT="geht nicht?">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1535919549942" ID="ID_809087906" MODIFIED="1535919754360" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
@@ -31081,15 +31082,26 @@
       Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919835337" ID="ID_984434298" MODIFIED="1535920192370" TEXT="Ausweg: doppelt wrappen?">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535919835337" ID="ID_984434298" MODIFIED="1535932021329" TEXT="Ausweg: doppelt wrappen?">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535923167297" ID="ID_1611885187" MODIFIED="1535923219590" TEXT="Basis-Filter sieht unspezifische Form des Pr&#xe4;dikates"/>
 <node CREATED="1535923237336" ID="ID_873685254" MODIFIED="1535923251434" TEXT="im Funktor steckt eingewickelt eine spezifische Form"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535924949587" ID="ID_283543674" MODIFIED="1535925042250" TEXT="L&#xf6;sung">
-<icon BUILTIN="pencil"/>
+<node CREATED="1535932069618" ID="ID_937611933" MODIFIED="1535932128786" TEXT="kein wirklicher overhead">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der Aufruf vom &#228;u&#223;eren in den inneren Wrapper ist 1:1 und sollte vom Compiler wegoptimiert werden
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node COLOR="#338800" CREATED="1535924949587" ID="ID_283543674" MODIFIED="1535932018158" TEXT="L&#xf6;sung">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535924955458" ID="ID_257130301" MODIFIED="1535927205707" TEXT="Typ des gewrappten Funktors konstruieren">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -31109,13 +31121,13 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535913524436" TEXT="Unit-Test (replizieren)">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535932139639" TEXT="Unit-Test (replizieren)">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535913527837" ID="ID_1506533000" MODIFIED="1535913542932" TEXT="anlegen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535919483699" TEXT="andere F&#xe4;lle auch covern">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535932138102" TEXT="andere F&#xe4;lle auch covern">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From b3f328f28d143b79005ff8862301699003f96c84 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 3 Sep 2018 02:27:32 +0200
Subject: [PATCH 054/178] EventLog: consolidate existing calls to configure the
 search

create a narrow configuration API for the underlying search mechanism.
Simplifies the task of turning that search into a real backtracking evaluation.
---
 src/lib/test/event-log.hpp | 79 ++++++++++++++++++++++++--------------
 wiki/thinkPad.ichthyo.mm   | 10 ++++-
 2 files changed, 58 insertions(+), 31 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 443d8802d..e02493545 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -308,6 +308,37 @@ namespace test{
         }
       
       
+      /* === configure the underlying search engine === */
+      
+      enum Direction {
+        FORWARD, BACKWARD
+      };
+      
+      template<typename COND>
+      void
+      attachNextSerchStep (COND&& filter, Direction direction)
+        {
+          switch (direction)
+            {
+              case FORWARD:
+                solution_.underlying().switchForwards();
+                break;
+              case BACKWARD:
+                solution_.underlying().switchBackwards();
+                break;
+            }
+          solution_.setNewFilter (forward<COND> (filter));
+        }
+      
+      template<typename COND>
+      void
+      refineSerach (COND&& additionalFilter)
+        {
+          solution_.andFilter (forward<COND> (additionalFilter));
+        }
+      
+      
+      
     public:
       /** final evaluation of the match query,
        *  usually triggered from the unit test `CHECK()`.
@@ -335,8 +366,7 @@ namespace test{
       EventMatch&
       before (string match)
         {
-          solution_.underlying().switchForwards();
-          solution_.setNewFilter(find(match));
+          attachNextSerchStep (find(match), FORWARD);
           evaluateQuery ("match(\""+match+"\")");
           return *this;
         }
@@ -345,8 +375,7 @@ namespace test{
       EventMatch&
       beforeMatch (string regExp)
         {
-          solution_.underlying().switchForwards();
-          solution_.setNewFilter(findRegExp(regExp));
+          attachNextSerchStep (findRegExp(regExp), FORWARD);
           evaluateQuery ("find-RegExp(\""+regExp+"\")");
           return *this;
         }
@@ -367,8 +396,7 @@ namespace test{
       EventMatch&
       beforeEvent (string match)
         {
-          solution_.underlying().switchForwards();
-          solution_.setNewFilter(findEvent(match));
+          attachNextSerchStep (findEvent(match), FORWARD);
           evaluateQuery ("match-event(\""+match+"\")");
           return *this;
         }
@@ -376,8 +404,7 @@ namespace test{
       EventMatch&
       beforeEvent (string classifier, string match)
         {
-          solution_.underlying().switchForwards();
-          solution_.setNewFilter(findEvent(classifier,match));
+          attachNextSerchStep (findEvent(classifier,match), FORWARD);
           evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
           return *this;
         }
@@ -389,8 +416,7 @@ namespace test{
       EventMatch&
       beforeCall (string match)
         {
-          solution_.underlying().switchForwards();
-          solution_.setNewFilter(findCall(match));
+          attachNextSerchStep (findCall(match), FORWARD);
           evaluateQuery ("match-call(\""+match+"\")");
           return *this;
         }
@@ -398,8 +424,7 @@ namespace test{
       EventMatch&
       after (string match)
         {
-          solution_.underlying().switchBackwards();
-          solution_.setNewFilter(find(match));
+          attachNextSerchStep (find(match), BACKWARD);
           evaluateQuery ("match(\""+match+"\")", "before");
           return *this;
         }
@@ -407,8 +432,7 @@ namespace test{
       EventMatch&
       afterMatch (string regExp)
         {
-          solution_.underlying().switchBackwards();
-          solution_.setNewFilter(findRegExp(regExp));
+          attachNextSerchStep (findRegExp(regExp), BACKWARD);
           evaluateQuery ("find-RegExp(\""+regExp+"\")", "before");
           return *this;
         }
@@ -416,8 +440,7 @@ namespace test{
       EventMatch&
       afterEvent (string match)
         {
-          solution_.underlying().switchBackwards();
-          solution_.setNewFilter(findEvent(match));
+          attachNextSerchStep (findEvent(match), BACKWARD);
           evaluateQuery ("match-event(\""+match+"\")", "before");
           return *this;
         }
@@ -425,8 +448,7 @@ namespace test{
       EventMatch&
       afterEvent (string classifier, string match)
         {
-          solution_.underlying().switchBackwards();
-          solution_.setNewFilter(findEvent(classifier,match));
+          attachNextSerchStep (findEvent(classifier,match), BACKWARD);
           evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")", "before");
           return *this;
         }
@@ -435,8 +457,7 @@ namespace test{
       EventMatch&
       afterCall (string match)
         {
-          solution_.underlying().switchBackwards();
-          solution_.setNewFilter(findCall(match));
+          attachNextSerchStep (findCall(match), BACKWARD);
           evaluateQuery ("match-call(\""+match+"\")", "before");
           return *this;
         }
@@ -454,7 +475,7 @@ namespace test{
           ArgSeq argSeq(stringify<ArgSeq> (args...));
           string argList(util::join(argSeq));
           
-          solution_.andFilter (matchArguments(move(argSeq)));
+          refineSerach (matchArguments(move(argSeq)));
           evaluateQuery ("match-arguments("+argList+")");
           return *this;
         }
@@ -473,7 +494,7 @@ namespace test{
       EventMatch&
       argMatch (ARGS const& ...regExps)
         {
-          solution_.andFilter (matchArgsRegExp (stringify<RExSeq> (regExps...)));
+          refineSerach (matchArgsRegExp (stringify<RExSeq> (regExps...)));
           evaluateQuery ("match-args-RegExp("+util::join(stringify<ArgSeq>(regExps...))+")");
           return *this;
         }
@@ -482,7 +503,7 @@ namespace test{
       EventMatch&
       type (string typeID)
         {
-          solution_.andFilter (matchType(typeID));
+          refineSerach (matchType(typeID));
           evaluateQuery ("match-type("+typeID+")");
           return *this;
         }
@@ -491,7 +512,7 @@ namespace test{
       EventMatch&
       key (string key)
         {
-          solution_.andFilter (ensureAttribute(key));
+          refineSerach (ensureAttribute(key));
           evaluateQuery ("ensure-attribute("+key+")");
           return *this;
         }
@@ -500,7 +521,7 @@ namespace test{
       EventMatch&
       attrib (string key, string valueMatch)
         {
-          solution_.andFilter (matchAttribute(key,valueMatch));
+          refineSerach (matchAttribute(key,valueMatch));
           evaluateQuery ("match-attribute("+key+"=\""+valueMatch+"\")");
           return *this;
         }
@@ -509,7 +530,7 @@ namespace test{
       EventMatch&
       id (string classifier)
         {
-          solution_.andFilter (matchAttribute("ID",classifier));
+          refineSerach (matchAttribute("ID",classifier));
           evaluateQuery ("match-ID(\""+classifier+"\")");
           return *this;
         }
@@ -518,7 +539,7 @@ namespace test{
       EventMatch&
       on (string targetID)
         {
-          solution_.andFilter (matchAttribute("this",targetID));
+          refineSerach (matchAttribute("this",targetID));
           evaluateQuery ("match-this(\""+targetID+"\")");
           return *this;
         }
@@ -526,7 +547,7 @@ namespace test{
       EventMatch&
       on (const char* targetID)
         {
-          solution_.andFilter (matchAttribute("this",targetID));
+          refineSerach (matchAttribute("this",targetID));
           evaluateQuery ("match-this(\""+string(targetID)+"\")");
           return *this;
         }
@@ -536,7 +557,7 @@ namespace test{
       on (const X *const targetObj)
         {
           string targetID = idi::instanceTypeID (targetObj);
-          solution_.andFilter (matchAttribute("this",targetID));
+          refineSerach (matchAttribute("this",targetID));
           evaluateQuery ("match-this(\""+targetID+"\")");
           return *this;
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 309294c49..0413b81c3 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30840,7 +30840,7 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1535932142834" TEXT="Aufgabe: Filter erweiterbar machen">
+<node COLOR="#338800" CREATED="1535893707036" FOLDED="true" ID="ID_257876647" MODIFIED="1535934249016" TEXT="Aufgabe: Filter erweiterbar machen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535893718194" ID="ID_872370459" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
 <node CREATED="1535893752174" ID="ID_386073545" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
@@ -31131,7 +31131,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535899950863" TEXT="bestehende Aufrufe konsolidieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535934181826" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535934086931" ID="ID_805705448" MODIFIED="1535934155059" TEXT="internes API f&#xfc;r die Such-Konfiguration einf&#xfc;hren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31143,9 +31145,13 @@
   </body>
 </html>
 </richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535934121614" ID="ID_757923717" MODIFIED="1535934185871" TEXT="umstellen von IterTools -&gt; TreeExplorer">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+</node>
 <node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535893804419" TEXT="Auswertungs-Stack">
 <node CREATED="1535893826972" ID="ID_352546105" MODIFIED="1535894073967" TEXT="aktueller Frame">
 <node CREATED="1535894074891" ID="ID_1972842519" MODIFIED="1535923151832" TEXT="== aktuell wirksamer Suchfilter"/>

From 75e1eab4bb7aafd9dd175414323c753ef11ae3c1 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 3 Sep 2018 03:32:18 +0200
Subject: [PATCH 055/178] EventLog: drop-in the new TreeExplorer::mutableFilter

while this is basically a drop-in replacement,
it marks the switch to the monadic evaluation technology,
which is prerequisite for building real backtracking into the search.
---
 src/lib/iter-cursor.hpp        |  7 ++++++-
 src/lib/iter-tree-explorer.hpp | 11 +++++++++--
 src/lib/test/event-log.hpp     | 36 +++++++++++++++++++++-------------
 wiki/thinkPad.ichthyo.mm       | 24 +++++++++++++++--------
 4 files changed, 53 insertions(+), 25 deletions(-)

diff --git a/src/lib/iter-cursor.hpp b/src/lib/iter-cursor.hpp
index 66b81523e..259057956 100644
--- a/src/lib/iter-cursor.hpp
+++ b/src/lib/iter-cursor.hpp
@@ -170,7 +170,12 @@ namespace lib {
       using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
       
     public:
-      IterCursor() { }
+      IterCursor()                              =default;
+      IterCursor (IterCursor&&)                 =default;
+      IterCursor (IterCursor const&)            =default;
+      IterCursor& operator= (IterCursor&&)      =default;
+      IterCursor& operator= (IterCursor const&) =default;
+      
       
       template<class CON>
       explicit
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 07d9c9a75..abfa7c684 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -557,8 +557,8 @@ namespace lib {
       : SRC
       {
         BaseAdapter() = default;
-        BaseAdapter(SRC const& src) : SRC(src) { }
-        BaseAdapter(SRC && src)     : SRC(src) { }
+        BaseAdapter(SRC const& src) : SRC{src}                { }
+        BaseAdapter(SRC && src)     : SRC{forward<SRC> (src)} { }
         
         void expandChildren() { }
         size_t depth()  const { return 0; }
@@ -1436,6 +1436,13 @@ namespace lib {
         }
       
       
+      auto
+      mutableFilter()
+        {
+          return mutableFilter ([](auto){ return true; });
+        }
+      
+      
       /** _terminal builder_ to package the processing pipeline as IterSource.
        * Invoking this function moves the whole iterator compound, as assembled by the preceding
        * builder calls, into heap allocated memory and returns a [iterator front-end](\ref IterExploreSource).
diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index e02493545..8717fbd0c 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -45,7 +45,7 @@
 
 #include "lib/error.hpp"
 #include "lib/idi/entry-id.hpp"
-#include "lib/iter-adapter.hpp"
+#include "lib/iter-tree-explorer.hpp"
 #include "lib/iter-cursor.hpp"
 #include "lib/format-util.hpp"
 #include "lib/format-cout.hpp"
@@ -70,6 +70,18 @@ namespace test{
   using lib::Symbol;
   using std::string;
   
+  namespace {
+    using Entry = lib::diff::Record<string>;
+    using Log   = std::vector<Entry>;
+    
+    auto
+    buildSearchFilter(Log const& srcSeq)
+    {
+      using Iter  = lib::IterCursor<Log::const_iterator>;
+      return treeExplore(Iter (srcSeq))
+                .mutableFilter();
+    }
+  }
   
   
   /**
@@ -83,10 +95,7 @@ namespace test{
    */
   class EventMatch
     {
-      using Entry = lib::diff::Record<string>;
-      using Log   = std::vector<Entry>;
-      using Iter  = lib::IterCursor<Log::const_iterator>;
-      using Filter = ExtensibleFilterIter<Iter>;
+      using Filter = decltype( buildSearchFilter (std::declval<Log const&>()) );
       
       using ArgSeq = lib::diff::RecordSetup<string>::Storage;
       using RExSeq = std::vector<std::regex>;
@@ -151,10 +160,10 @@ namespace test{
       
       /** @internal for creating EventLog matchers */
       EventMatch(Log const& srcSeq)
-        : solution_(Iter(srcSeq))
-        , lastMatch_("HEAD "+ solution_->get("this"))
-        , look_for_match_(true)
-        , violation_()
+        : solution_{buildSearchFilter (srcSeq)}
+        , lastMatch_{"HEAD "+ solution_->get("this")}
+        , look_for_match_{true}
+        , violation_{}
         { }
       
       friend class EventLog;
@@ -321,10 +330,10 @@ namespace test{
           switch (direction)
             {
               case FORWARD:
-                solution_.underlying().switchForwards();
+                solution_.switchForwards();
                 break;
               case BACKWARD:
-                solution_.underlying().switchBackwards();
+                solution_.switchBackwards();
                 break;
             }
           solution_.setNewFilter (forward<COND> (filter));
@@ -577,9 +586,6 @@ namespace test{
    */
   class EventLog
     {
-      using Entry = lib::diff::Record<string>;
-      using Log   = std::vector<Entry>;
-      using Iter  = lib::RangeIter<Log::const_iterator>;
       
       std::shared_ptr<Log> log_;
       
@@ -835,6 +841,8 @@ namespace test{
         }
       
       
+      using Iter  = lib::RangeIter<Log::const_iterator>;
+      
       typedef Iter const_iterator;
       typedef const Entry value_type;
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0413b81c3..ff40029c9 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31131,8 +31131,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535934181826" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535937992260" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535934086931" ID="ID_805705448" MODIFIED="1535934155059" TEXT="internes API f&#xfc;r die Such-Konfiguration einf&#xfc;hren">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31147,12 +31147,17 @@
 </richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535934121614" ID="ID_757923717" MODIFIED="1535934185871" TEXT="umstellen von IterTools -&gt; TreeExplorer">
+<node COLOR="#338800" CREATED="1535934121614" ID="ID_757923717" MODIFIED="1535937964888" TEXT="umstellen von IterTools -&gt; TreeExplorer">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535938028929" ID="ID_1910123172" MODIFIED="1535938091638" TEXT="Backtracking Search-Engine einbauen">
+<arrowlink COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" STARTARROW="None" STARTINCLINATION="-120;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-</node>
-<node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535893804419" TEXT="Auswertungs-Stack">
+<node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535938019075" TEXT="Auswertungs-Stack">
+<icon BUILTIN="idea"/>
 <node CREATED="1535893826972" ID="ID_352546105" MODIFIED="1535894073967" TEXT="aktueller Frame">
 <node CREATED="1535894074891" ID="ID_1972842519" MODIFIED="1535923151832" TEXT="== aktuell wirksamer Suchfilter"/>
 <node CREATED="1535894076546" ID="ID_880245387" MODIFIED="1535894084445" TEXT="schie&#xdf;t Suchposition ein"/>
@@ -31173,11 +31178,14 @@
 <node CREATED="1535894029921" ID="ID_152779506" MODIFIED="1535894037411" TEXT="den Stack schrittweise hochsteigen"/>
 </node>
 </node>
-<node CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1535894105107" TEXT="als eigene Lib-Klasse bauen">
-<node CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1535894120520" TEXT="Frage: wie konkret?">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1535938091638" TEXT="als eigene Lib-Klasse bauen">
+<linktarget COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" SOURCE="ID_1910123172" STARTARROW="None" STARTINCLINATION="-120;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1535938112691" TEXT="Frage: wie konkret?">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1535894138774" TEXT="eigenst&#xe4;ndiger Unit-Test">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1535938003909" TEXT="eigenst&#xe4;ndiger Unit-Test">
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1535894140882" ID="ID_1145179443" MODIFIED="1535894190927" TEXT="IterTreeExplorer_test nicht zu sehr &#xfc;berladen!"/>
 </node>
 </node>

From 9d7ce1e6a4ac3eedacf709a2dae42ccc7f11a541 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 3 Sep 2018 03:49:23 +0200
Subject: [PATCH 056/178] EventLog: now able to use the CursorGear immediately
 as state core

...since TreeExplorer automatically does the iterator wrapping for us.
As added benefit, we have now a direct API to control the search direction
---
 src/lib/test/event-log.hpp | 14 +++-----------
 wiki/thinkPad.ichthyo.mm   | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 8717fbd0c..c4e9d9686 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -77,8 +77,8 @@ namespace test{
     auto
     buildSearchFilter(Log const& srcSeq)
     {
-      using Iter  = lib::IterCursor<Log::const_iterator>;
-      return treeExplore(Iter (srcSeq))
+      using Cursor  = lib::iter::CursorGear<Log::const_iterator>;
+      return treeExplore (Cursor{srcSeq.begin(), srcSeq.end()})
                 .mutableFilter();
     }
   }
@@ -327,15 +327,7 @@ namespace test{
       void
       attachNextSerchStep (COND&& filter, Direction direction)
         {
-          switch (direction)
-            {
-              case FORWARD:
-                solution_.switchForwards();
-                break;
-              case BACKWARD:
-                solution_.switchBackwards();
-                break;
-            }
+          solution_.reverse (BACKWARD == direction);
           solution_.setNewFilter (forward<COND> (filter));
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index ff40029c9..83bc81ce0 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30715,6 +30715,8 @@
 </node>
 <node CREATED="1535891156816" ID="ID_679300718" MODIFIED="1535891164631" TEXT="ist komplex">
 <icon BUILTIN="smiley-neutral"/>
+<node CREATED="1535939100410" ID="ID_1893557511" MODIFIED="1535939107373" TEXT="aber von einer Art, die mir gef&#xe4;llt"/>
+<node CREATED="1535939111640" ID="ID_1649632412" MODIFIED="1535939115932" TEXT="war bisher gut wartbar"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1514328717684" ID="ID_137835978" MODIFIED="1535892401183" TEXT="neuer Anlauf IterExplorer II">
@@ -31150,6 +31152,23 @@
 <node COLOR="#338800" CREATED="1535934121614" ID="ID_757923717" MODIFIED="1535937964888" TEXT="umstellen von IterTools -&gt; TreeExplorer">
 <icon BUILTIN="button_ok"/>
 </node>
+<node COLOR="#338800" CREATED="1535938792363" ID="ID_428321880" MODIFIED="1535938844914" TEXT="CursorGear direkt als Core verwenden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      TreeExplorer macht das Wrappen f&#252;r uns automatisch,
+    </p>
+    <p>
+      und au&#223;erdem haben wir nun ein direktes API f&#252;r die Laufrichtung
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535938028929" ID="ID_1910123172" MODIFIED="1535938091638" TEXT="Backtracking Search-Engine einbauen">
 <arrowlink COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" STARTARROW="None" STARTINCLINATION="-120;0;"/>

From ec8d0557e8c65c85c63062b48cbee0a0aa5190e3 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 4 Sep 2018 02:02:26 +0200
Subject: [PATCH 057/178] ChainSearch: draft interface and possible
 implementation approach

The intention is to augment the iterator based (linear) search
used in EventLog to allow for real backtracking, based on a evaluation tree.
This should be rather staight forward to implement, relying on the
exploreChildren() functionality of TreeExplorer. The trick is to package
the chained search step as a monadic flatMap operation
---
 src/lib/iter-chain-search.hpp            | 181 +++++++++++++++++++++++
 src/lib/iter-tree-explorer.hpp           |   2 +-
 tests/library/iter-chain-search-test.cpp | 145 ++++++++++++++++++
 wiki/thinkPad.ichthyo.mm                 | 105 ++++++++++++-
 4 files changed, 427 insertions(+), 6 deletions(-)
 create mode 100644 src/lib/iter-chain-search.hpp
 create mode 100644 tests/library/iter-chain-search-test.cpp

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
new file mode 100644
index 000000000..fd4fc98af
--- /dev/null
+++ b/src/lib/iter-chain-search.hpp
@@ -0,0 +1,181 @@
+/*
+  ITER-CHAIN-SEARCH.hpp  -  chained search with backtracking based on (bidirectional) iterator
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file iter-cursor.hpp
+ ** An iterator with the ability to switch direction.
+ ** This wrapper relies on the ability of typical STL container iterators
+ ** to work in both directions, similar to std::reverse_iterator.
+ ** Yet it is a single, self-contained element and in compliance to the
+ ** ["Lumiera Forward Iterator"](iter-adapter.hpp) concept. But it has
+ ** the additional ability to [switch the working direction](\ref IterCursor<IT>::switchDir).
+ ** 
+ ** @see IterCursor_test
+ ** @see iter-adapter.hpp
+ ** @see [usage example](event-log.hpp)
+ ** 
+ */
+
+
+#ifndef SRC_LIB_ITER_CHAIN_SEARCH_H
+#define SRC_LIB_ITER_CHAIN_SEARCH_H
+
+
+#include "lib/error.hpp"
+//#include "lib/iter-adapter.hpp"
+
+//#include <type_traits>
+//#include <utility>
+#include <utility>
+#include <string>
+
+
+namespace lib {
+  
+  using std::move;
+  using std::string;
+  
+  namespace iter {
+    
+    /**
+     * @internal implementation for....
+     */
+    template<class IT>
+    class Cur
+      {
+        
+        
+      public:
+      };
+    
+    
+  } // namespace iter
+  
+  
+  
+  
+  /**
+   * Iterator based linear search mechanism, with the ability to perform consecutive search with backtracking.
+   * The IterChainSearch can be configured with a sequence of search goals (filter conditions), and will
+   * apply these in succession on the underlying iterator. It will search for the first hit of the first
+   * condition, and then continue to search _from there_ matching on the second condition, and so on.
+   * After the first combination of matches is exhausted, the search will backtrack and try to evaluate
+   * the next combination, leading to a tree of search solutions.
+   */
+//  template<class IT>
+  class IterChainSearch
+    {
+//      using _Core = iter::CursorGear<IT>;
+//      using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
+      
+    public:
+//    IterChainSearch()                                   =default;
+//    IterChainSearch (IterChainSearch&&)                 =default;
+//    IterChainSearch (IterChainSearch const&)            =default;
+//    IterChainSearch& operator= (IterChainSearch&&)      =default;
+//    IterChainSearch& operator= (IterChainSearch const&) =default;
+      
+      
+//    template<class CON>
+//    explicit
+//    IterChainSearch (CON& container)
+////    : _Parent(_Core(container.begin(), container.end()))
+//      { }
+//    
+//    IterChainSearch (IT&& begin, IT&& end)
+////    : _Parent(_Core(std::forward<IT>(begin), std::forward<IT>(end)))
+//      { }
+      
+      
+      operator bool()  const
+        {
+          UNIMPLEMENTED ("solution test");
+        }
+      
+      bool
+      empty()  const
+        {
+          return not(*this);
+        }
+      
+      
+      /** */
+      IterChainSearch&&
+      search (string target)
+        {
+          UNIMPLEMENTED ("configure additional chained search condition");
+          return move(*this);
+        }
+      
+      IterChainSearch&&
+      clearFilter()
+        {
+          UNIMPLEMENTED ("drop all search condition frames");
+          return move(*this);
+        }
+      
+      
+      /////////////////////////TODO dummy placeholder code. Replace by real iterator access
+      string&
+      operator*()  const
+        {
+          static string boo{"bääääh"};
+          return boo;
+        }
+      
+      IterChainSearch&
+      operator++()
+        {
+          return *this;
+        }
+      /////////////////////////TODO dummy placeholder code. Replace by real iterator access
+    };
+  
+  
+  
+  
+  /* ==== convenient builder free function ==== */
+  
+  /** setup a chain search configuration by suitably wrapping the given container.
+   * @return a TreeEplorer, which is an Iterator to yield all the source elements,
+   *         but may also be used to build an processing pipeline.
+   * @warning if you capture the result of this call by an auto variable,
+   *         be sure to understand that invoking any further builder operation on
+   *         TreeExplorer will invalidate that variable (by moving it into the
+   *         augmented iterator returned from such builder call).
+   */
+  template<class CON>
+  inline auto
+  chainSearch (CON&& srcData)
+  {
+//  using SrcIter = typename _DecoratorTraits<IT>::SrcIter;
+//  using Base = iter_explorer::BaseAdapter<SrcIter>;
+    
+    UNIMPLEMENTED ("figure out the Iterator type and build a suitable IterChainSearch instance");
+    return IterChainSearch();
+//  return TreeExplorer<Base> (std::forward<IT> (srcSeq));
+  }
+  
+  
+  
+} // namespace lib
+#endif /*SRC_LIB_ITER_CHAIN_SEARCH_H*/
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index abfa7c684..45ea45e40 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -1445,7 +1445,7 @@ namespace lib {
       
       /** _terminal builder_ to package the processing pipeline as IterSource.
        * Invoking this function moves the whole iterator compound, as assembled by the preceding
-       * builder calls, into heap allocated memory and returns a [iterator front-end](\ref IterExploreSource).
+       * builder calls, into heap allocated memory and returns an [iterator front-end](\ref IterExploreSource).
        * Any iteration and manipulation on that front-end is passed through virtual function calls into
        * the back-end, thereby concealing all details of the processing pipeline.
        */
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
new file mode 100644
index 000000000..0967a50c9
--- /dev/null
+++ b/tests/library/iter-chain-search-test.cpp
@@ -0,0 +1,145 @@
+/*
+  IterChainSearch(Test)  -  verify chained search operations with backtracking
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file iter-chain-search-test.cpp
+ ** unit test \ref IterChainSearch_test
+ */
+
+
+
+#include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
+#include "lib/format-util.hpp"
+#include "lib/iter-chain-search.hpp"
+#include "lib/util.hpp"
+
+#include <vector>
+#include <string>
+
+
+
+namespace lib {
+namespace test{
+  
+  using ::Test;
+  using util::join;
+  using util::isnil;
+  using util::isSameObject;
+  using std::vector;
+  using std::string;
+  
+  using lumiera::error::LERR_(ITER_EXHAUST);
+  
+  
+  namespace { // test fixture
+    
+    using Spam = vector<string>;
+    
+    const Spam SPAM{"spam"
+                   ,"sausage"
+                   ,"spam"
+                   ,"spam"
+                   ,"bacon"
+                   ,"spam"
+                   ,"tomato"
+                   ,"and"
+                   ,"spam"
+                   };
+    
+  } // (END)fixture
+  
+  
+  
+  
+  
+  
+  
+  /*****************************************************************//**
+   * @test verify a setup for consecutive searches with backtracking.
+   * 
+   * @see iter-chain-search.hpp
+   * @see iter-cursor.hpp
+   * @see [usage example](event-log.hpp)
+   */
+  class IterChainSearch_test : public Test
+    {
+      
+      virtual void
+      run (Arg)
+        {
+          simpleSearch();
+          chainedIteration();
+          backtracking();
+        }
+      
+      
+      /** @test simple basic use case. */
+      void
+      simpleSearch ()
+        {
+          auto search = chainSearch(SPAM)
+                          .search("bacon")
+                          .search("tomato");
+          
+          CHECK (search);
+          CHECK (not isnil(search));
+          CHECK ("tomato" == *search);
+          CHECK (isSameObject (*search, SPAM[6]));
+          
+          search.clearFilter();
+          CHECK ("tomato" == *search);
+          ++search;
+          CHECK ("and" == *search);
+          search.search("spam");
+          CHECK ("spam" == *search);
+          CHECK (isSameObject (*search, SPAM[8]));
+          
+          ++search;
+          CHECK (not search);
+          CHECK (isnil (search));
+          VERIFY_ERROR (ITER_EXHAUST, *search);
+        }
+      
+      
+      
+      /** @test verify the
+       */
+      void
+      chainedIteration ()
+        {
+        }
+      
+      
+      
+      /** @test verify the
+       */
+      void
+      backtracking ()
+        {
+        }
+    };
+  
+  LAUNCHER (IterChainSearch_test, "unit common");
+  
+  
+}} // namespace lib::test
+
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 83bc81ce0..d0ce3ca79 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31173,6 +31173,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535938028929" ID="ID_1910123172" MODIFIED="1535938091638" TEXT="Backtracking Search-Engine einbauen">
 <arrowlink COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" STARTARROW="None" STARTINCLINATION="-120;0;"/>
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
+<node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
 </node>
 </node>
 <node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535938019075" TEXT="Auswertungs-Stack">
@@ -31197,15 +31199,98 @@
 <node CREATED="1535894029921" ID="ID_152779506" MODIFIED="1535894037411" TEXT="den Stack schrittweise hochsteigen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1535938091638" TEXT="als eigene Lib-Klasse bauen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1536018600721" TEXT="als eigene Lib-Klasse bauen">
 <linktarget COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" SOURCE="ID_1910123172" STARTARROW="None" STARTINCLINATION="-120;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1535938112691" TEXT="Frage: wie konkret?">
+<icon BUILTIN="pencil"/>
+<node COLOR="#435e98" CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1536018340937" TEXT="Design-Frage: wie konkret?">
 <icon BUILTIN="help"/>
+<node CREATED="1536018209730" ID="ID_1130583934" MODIFIED="1536018221348" TEXT="nur das generische Auswertungs-Schema"/>
+<node CREATED="1536018222528" ID="ID_1509547591" MODIFIED="1536018255176" TEXT="die einzelnen Auswertungs-Schritte als Funktor (Monaden-Stil)"/>
+<node CREATED="1536018255860" ID="ID_1267468732" MODIFIED="1536018275981" TEXT="der unterliegende Iterator als Template-Parameter"/>
+<node CREATED="1536018293535" ID="ID_361886715" MODIFIED="1536018315757" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Wert-equality-Match"/>
+<node CREATED="1536018276593" ID="ID_1222260775" MODIFIED="1536018287299" TEXT="prekonfigurierte Builder-Funktionen f&#xfc;r Standardf&#xe4;lle"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1535938003909" TEXT="eigenst&#xe4;ndiger Unit-Test">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1536018457506" TEXT="Implementierung">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536018458786" TEXT="Kern: Explore-Mechanismus">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018644456" ID="ID_477475522" MODIFIED="1536018654007" TEXT="Signatur der Explore-Funktion festlegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018705511" ID="ID_1131109871" MODIFIED="1536018800891" TEXT="greedy Tiefensuche">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018802738" ID="ID_1560348563" MODIFIED="1536018807506" TEXT="Abbruchbedingung">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018816272" ID="ID_40740226" MODIFIED="1536018828687" TEXT="Ende der Filterkette">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018829583" ID="ID_722941976" MODIFIED="1536018849229" TEXT="aktueller Filter ersch&#xf6;pft">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536018873126" TEXT="abgeleiteten Frame konstruieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536018459425" TEXT="Schritte als Funktoren">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018684754" ID="ID_1076606298" MODIFIED="1536018696034" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018696977" ID="ID_1710558292" MODIFIED="1536018702049" TEXT="Sequenz solcher Funktoren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536018929138" TEXT="Pipeline konstruieren">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536018943472" TEXT="treeExplorer-Konfiguration">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536018460817" TEXT="Abgreifen des Iterators von STL-Container">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536019004173" TEXT="Wert-Typ finden">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" SOURCE="ID_1700266521" STARTARROW="None" STARTINCLINATION="76;-5;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018887223" ID="ID_832237706" MODIFIED="1536018900966" TEXT="Range-Iter konstruieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018442123" ID="ID_829730232" MODIFIED="1536018463121" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Match">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018985450" ID="ID_1700266521" MODIFIED="1536019004173" TEXT="Wert-Typ deduzieren">
+<arrowlink DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" STARTARROW="None" STARTINCLINATION="76;-5;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536019008151" ID="ID_29813547" MODIFIED="1536019026064" TEXT="equality comparision in Lambda">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018471975" ID="ID_1115030606" MODIFIED="1536018481902" TEXT="Variante f&#xfc;r bidirektionale Suche">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018956285" ID="ID_128441804" MODIFIED="1536018975076" TEXT="in CursorGear einwickeln">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1536018524436" TEXT="Unit-Test: IterChainSearch_test">
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018569210" ID="ID_1083474400" MODIFIED="1536018578102" TEXT="Test-Fixture">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536018580388" ID="ID_186304417" MODIFIED="1536018584425" TEXT="lovely spam">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536018556917" TEXT="simpleSearch()">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018544936" ID="ID_1750921303" MODIFIED="1536018557580" TEXT="chainedIteration()">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018552912" ID="ID_385004210" MODIFIED="1536018557955" TEXT="backtracking()">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1535894140882" ID="ID_1145179443" MODIFIED="1535894190927" TEXT="IterTreeExplorer_test nicht zu sehr &#xfc;berladen!"/>
 </node>
 </node>
 </node>
@@ -31213,6 +31298,16 @@
 </node>
 </node>
 </node>
+<node CREATED="1536015468698" ID="ID_1045359957" MODIFIED="1536015470477" TEXT="utils">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536015471377" ID="ID_1732583592" MODIFIED="1536015487230" TEXT="regex-Iteratoren">
+<icon BUILTIN="hourglass"/>
+<node CREATED="1536015489143" ID="ID_979562288" MODIFIED="1536015508744" TEXT="std::sregex_token_itertor"/>
+<node CREATED="1536015509308" ID="ID_1011220828" MODIFIED="1536015512488" TEXT="geschickt verpacken"/>
+<node CREATED="1536015513076" ID="ID_849722427" MODIFIED="1536015521862" TEXT="den Regex-Include opaque halten"/>
+<node CREATED="1536015525154" ID="ID_1039059758" MODIFIED="1536015533853" TEXT="soll mal in util.hpp"/>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1482524641484" ID="ID_1651495185" MODIFIED="1518487921096" TEXT="Architektur">
 <node CREATED="1531419748046" ID="ID_1791265013" MODIFIED="1531419752937" TEXT="Lebenszyklus">

From 433543a2c77d78e0a03ebfd301f13d60cb916cd3 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 5 Sep 2018 04:48:11 +0200
Subject: [PATCH 058/178] DOC: some doxygen fixes

---
 doc/design/architecture/Subsystems.txt        |  4 +-
 src/lib/iter-tree-explorer.hpp                | 66 ++++++++++++++++---
 src/lib/zombie-check.hpp                      |  2 +-
 .../basics/dependency-configuration-test.cpp  |  2 +-
 tests/library/iter-tree-explorer-test.cpp     |  4 +-
 5 files changed, 64 insertions(+), 14 deletions(-)

diff --git a/doc/design/architecture/Subsystems.txt b/doc/design/architecture/Subsystems.txt
index f57d2d85b..49e833dd7 100644
--- a/doc/design/architecture/Subsystems.txt
+++ b/doc/design/architecture/Subsystems.txt
@@ -164,7 +164,7 @@ test and better to reason about. If it really can not be avoided to use such uni
 static context, it should at least be packaged as a single object, plus we should ensure this logic
 can only be accessed through a regular (non static) object as front-end. Packaged this way, the
 most common and dangerous pitfalls with statics can be avoided.] And since Lumiera indeed allows
-for link:{ldoc}/technical/library/Dependencies.html[[lazily initialised dependencies], we
+for link:{ldoc}/technical/library/Dependencies.html[lazily initialised dependencies], we
 establish the policy that *destructors must not rely on dependencies*. In fact, they should
 not do any tangible work at all, beyond releasing other resources.
 
@@ -223,7 +223,7 @@ the event `ON_GLOBAL_INIT` is emitted.
   validation or auto-correction of the session's contents.
 
 `ON_SESSION_CLOSE`::
-  This event indicates to commence any activity relying on an opened and fully operative session.
+  This event indicates to cease any activity relying on an opened and fully operative session.
   When invoked, the session is still in fully operative state, all interfaces are open and the render engine
   is available. However, after issuing this event, the session shutdown sequence will be initiated, by detaching
   the engine interfaces and signalling the scheduler to cease running render jobs.
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 45ea45e40..d7b296989 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -1254,10 +1254,14 @@ namespace lib {
    * This allows to separate the mechanics of evaluation and result combination
    * from the actual processing and thus to define tree structured computations
    * based on an opaque source data structure not further disclosed.
+   * @tparam SRC a suitably adapted _source iterator_ or _state core_, wrapped
+   *             into an instance of the iter_explorer::BaseAdapter template
    * 
-   * \param usage
+   * \par usage
+   * TreeExplorer is meant to be used as *Builder* for a processing pipeline.
+   * For this to work, it is essential to pick the `SRC` baseclass properly.
    *        - to build a TreeExplorer, use the treeExplore() free function,
-   *          which cares to pick up an possibly adapt the given iteration source
+   *          which cares to pick up and possibly adapt the given iteration source
    *        - to add processing layers, invoke the builder operations on TreeExplorer
    *          in a chained fashion, thereby binding functors or lambdas. Capture the
    *          final result with an auto variable.
@@ -1323,6 +1327,7 @@ namespace lib {
        *       typed argument. Obviously, argument and result type should also make sense for
        *       the desired evaluation pattern, otherwise you'll get all kinds of nasty
        *       template compilation failures (have fun!)
+       * @return processing pipeline with attached [Expander](\ref iter_explorer::Expander) decorator
        */
       template<class FUN>
       auto
@@ -1340,6 +1345,7 @@ namespace lib {
        * necessary to invoke `expandChildren()` (and doing so would have no further effect than
        * just iterating). Thus, on iteration, each current element will be fed to the _expand functor_
        * and the results will be integrated depth first.
+       * @return processing pipeline with attached [AutoExpander](\ref iter_explorer::AutoExpander) decorator
        * @warning iteration will be infinite, unless the _expand functor_ provides some built-in
        *       termination condition, returning an empty child sequence at that point. This would
        *       then be the signal for the internal combination mechanism to return to visiting the
@@ -1382,6 +1388,7 @@ namespace lib {
        * functor supports the same definition styles as described for #expand
        * - it can be pure functional, src -> res
        * - it can accept the underlying source iterator and exploit side-effects
+       * @return processing pipeline with attached [Transformer](\ref iter_explorer::Transformer) decorator
        */
       template<class FUN>
       auto
@@ -1398,6 +1405,7 @@ namespace lib {
        * The previously created source layers will be "pulled" to fast-forward immediately to the
        * next element confirmed this way by the bound functor. If none of the source elements
        * is acceptable, the iterator will transition to exhausted state immediately.
+       * @return processing pipeline with attached [Filter](\ref iter_explorer::Filter) decorator
        */
       template<class FUN>
       auto
@@ -1418,12 +1426,14 @@ namespace lib {
        * from the current element. Whenever the filter is remoulded, it is immediately re-evaluated,
        * possibly causing the underlying iterator to be pulled until an element matching the condition
        * is found.
-       * @see MutableFilter::andFilter
-       * @see MutableFilter::andNotFilter
-       * @see MutableFilter::orFilter
-       * @see MutableFilter::orNotFilter
-       * @see MutableFilter::flipFilter
-       * @see MutableFilter::setNewFilter
+       * @return processing pipeline with attached [special MutableFilter](\ref iter_explorer::MutableFilter) decorator
+       * @see \ref IterTreeExplorer_test::verify_FilterChanges()
+       * @see \ref iter_explorer::MutableFilter::andFilter()
+       * @see \ref iter_explorer::MutableFilter::andNotFilter()
+       * @see \ref iter_explorer::MutableFilter::orFilter()
+       * @see \ref iter_explorer::MutableFilter::orNotFilter()
+       * @see \ref iter_explorer::MutableFilter::flipFilter()
+       * @see \ref iter_explorer::MutableFilter::setNewFilter()
        */
       template<class FUN>
       auto
@@ -1448,6 +1458,8 @@ namespace lib {
        * builder calls, into heap allocated memory and returns an [iterator front-end](\ref IterExploreSource).
        * Any iteration and manipulation on that front-end is passed through virtual function calls into
        * the back-end, thereby concealing all details of the processing pipeline.
+       * @return an front-end handle object, which is an "Lumiera Forward Iterator",
+       *         while holding onto a heap allocated [abstracted data source](\ref lib::IterExplorer).
        */
       IterExploreSource<value_type>
       asIterSource()
@@ -1473,6 +1485,44 @@ namespace lib {
    *         be sure to understand that invoking any further builder operation on
    *         TreeExplorer will invalidate that variable (by moving it into the
    *         augmented iterator returned from such builder call).
+   * 
+   * ## usage
+   * 
+   * This function starts a *Builder* expression. It picks up the given source,
+   * which can be something "sequence-like" or "iterable", and will automatically
+   * wrapped and adapted.
+   * - from a STL container, we retrieve a pair of STL iterators (`begin()`, `end()`)
+   * - a "Lumiera Forward Iterator" is copied or moved into the wrapper and used as
+   *   data source, pulling results on demand until exhaustion
+   * - a _State Core_ object is copied or moved into the wrapper and adapted to
+   *   be iterated as "Lumiera Forward Iterator". Any object with suitable extension
+   *   points and behaviour can be used, as explained [here](\ref lib::IterStateWrapper).
+   * 
+   * The resulting TreeExplorer instance can be directly used as "Lumiera Forward Iterator".
+   * However, typically you might want to invoke the builder functions to configure further
+   * processing steps in a processing pipeline...
+   * - to [filter](\ref TreeExplorer::filter) the results with a predicate (functor)
+   * - to [transform](\ref TreeExplorer::transform) the yielded results
+   * - to bind and configure a [child expansion operation](\ref TreeExplorer::expand), which
+   *   can then be triggered by explicitly invoking [.expandChildren()](\ref iter_explorer::Expander::expandChildren)
+   *   on the resulting pipeline; the generated child sequence is "flat mapped" into the results
+   *   (a *Monad* style usage).
+   * - to [package](\ref TreeExplorer::asIterSource) the pipeline built thus far behind an opaque
+   *   interface and move the implementation into heap memory.
+   * 
+   * A typical usage might be...
+   * \code
+   * auto multiply  = [](int v){ return 2*v; };
+   * 
+   * auto ii = treeExplore (CountDown{7,4})
+   *             .transform(multiply);
+   * 
+   * CHECK (14 == *ii);
+   * ++ii;
+   * CHECK (12 == *ii);
+   * ++ii;
+   * \endcode
+   * In this example, a `CountDown` _state core_ is used, as defined in iter-tree-explorer-test.cpp
    */
   template<class IT>
   inline auto
diff --git a/src/lib/zombie-check.hpp b/src/lib/zombie-check.hpp
index 81ffa4fff..5c19079a7 100644
--- a/src/lib/zombie-check.hpp
+++ b/src/lib/zombie-check.hpp
@@ -20,7 +20,7 @@
 
 */
 
-/** @file dependable-base.hpp
+/** @file zombie-check.hpp
  ** Detector to set off alarm when (re)using deceased objects.
  ** When implementing services based on static fields or objects,
  ** an invocation after static shutdown can not be precluded -- be it by
diff --git a/tests/basics/dependency-configuration-test.cpp b/tests/basics/dependency-configuration-test.cpp
index a3d450575..5fc6af694 100644
--- a/tests/basics/dependency-configuration-test.cpp
+++ b/tests/basics/dependency-configuration-test.cpp
@@ -303,7 +303,7 @@ namespace test{
       
       
       
-      /** @test instance creation can be preconfigured with a closure
+      /** @test instance creation can be preconfigured with a closure.
        * Both Singleton and Test-Mock creation can optionally be performed through a
        * user provided Lambda or Functor. To demonstrate this, we use a `Veryspecial` local class,
        * which takes an `int&` as constructor parameter -- and we create the actual instance through
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 601cf5f3c..79f8e3d95 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -221,8 +221,8 @@ namespace test{
    *       to build various functional evaluation pipelines,
    *       based on the \ref TreeExplorer template.
    *       - the adapter to wrap the source, which can either
-   *         [be a "state core"](\ref verify_wrappedState() ), or can
-   *         [be a "Lumiera Forward Iterator"](\ref verify_wrappedIterator() )
+   *         [be a state core](\ref verify_wrappedState() ), or can
+   *         [be a Lumiera Forward Iterator](\ref verify_wrappedIterator() )
    *       - the defining use case for TreeExplorer is to build a
    *         [pipeline for depth-first exploration](\ref verify_expandOperation() )
    *         of a (functional) tree structure. This "tree" is  created by invoking

From 99e3eeca9f4456341877bc762157f303388af204 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 8 Sep 2018 16:33:21 +0200
Subject: [PATCH 059/178] Library: formatting of simplified types adjusted

Need to be more careful when eating trailing spaces after a std::string.
Because the full-blown type is a template, sometimes the compiler adds a spurious
additional space behind the closing angle bracket, due to the now obsolete
"maximum munch rule" of C++98 -- to prevent closing angle brackets to become '>>'.
But in other cases, some type adornments or other language identifiers follow the
string type, like e.g. 'const'. In those cases, the trailing space must be retained.

We solve this by a look-ahead assertion in the regular expression:
consume the trailing space _only_ if a non-word character follows (like '>').
---
 src/lib/format-obj.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/format-obj.cpp b/src/lib/format-obj.cpp
index f2cdc0216..9de89b7d4 100644
--- a/src/lib/format-obj.cpp
+++ b/src/lib/format-obj.cpp
@@ -205,7 +205,7 @@ apologies for that."
                                 "|lumiera::"
                                 , regex::ECMAScript | regex::optimize};
     
-    static regex stdString {"(__cxx11::)?basic_string<char, char_traits<char>, allocator<char>\\s*>\\s*"
+    static regex stdString {"(__cxx11::)?basic_string<char, char_traits<char>, allocator<char>\\s*>(\\s+\\B)?"
                                 , regex::ECMAScript | regex::optimize};
     
     static regex stdAllocator {"(\\w+<(" TYP_EXP ")), allocator<\\2>\\s*"

From 4988153e15f2222b1bc0a61d73c19f4dc440e99e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 8 Sep 2018 16:37:42 +0200
Subject: [PATCH 060/178] Library: prevent implicit bool conversion on
 iterator-like objects

...it should have been this way all the time.
Generic code might otherwise be ill guided to assume a conversion
from the Iterator to its value type, while in fact an explicit dereferentiation is necessary
---
 src/gui/model/expander-revealer.hpp       |  1 +
 src/lib/iter-adapter-ptr-deref.hpp        | 12 +++++++--
 src/lib/iter-adapter-stl.hpp              | 25 ++++++++++++++-----
 src/lib/iter-adapter.hpp                  | 30 +++++++++++++++++++----
 src/lib/itertools.hpp                     |  6 ++++-
 src/lib/sync.hpp                          |  4 +--
 tests/library/iter-tree-explorer-test.cpp |  2 +-
 7 files changed, 63 insertions(+), 17 deletions(-)

diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index 662918b2d..8811ea96b 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -107,6 +107,7 @@ namespace model {
              and bool{changeState_};
         }
       
+      explicit
       operator bool()  const
         {
           REQUIRE (canExpand());
diff --git a/src/lib/iter-adapter-ptr-deref.hpp b/src/lib/iter-adapter-ptr-deref.hpp
index ca4a5b958..b038cadc0 100644
--- a/src/lib/iter-adapter-ptr-deref.hpp
+++ b/src/lib/iter-adapter-ptr-deref.hpp
@@ -141,7 +141,11 @@ namespace lib {
           return *this;
         }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       
@@ -266,7 +270,11 @@ namespace lib {
           takeAddress();
         }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       
diff --git a/src/lib/iter-adapter-stl.hpp b/src/lib/iter-adapter-stl.hpp
index e412973e8..e41e29008 100644
--- a/src/lib/iter-adapter-stl.hpp
+++ b/src/lib/iter-adapter-stl.hpp
@@ -72,11 +72,15 @@ namespace iter_stl {
       DistinctIter()            : i_(), prev_() { }
       DistinctIter(IT const& i) : i_(i),prev_() { memorise(); }
       
-      pointer   operator->() const { return i_; }
-      reference operator*()  const { return *i_;}
-      bool      isValid()    const { return i_; }
+      pointer   operator->()  const { return i_;  }
+      reference operator*()   const { return *i_; }
+      bool      isValid()     const { return i_;  }
       
-      operator bool()        const { return i_; }
+      explicit
+      operator bool() const
+        {
+          return bool{i_};
+        }
       
       
       DistinctIter&
@@ -472,8 +476,17 @@ namespace iter_stl {
       IterSnapshot& operator= (IterSnapshot const&) = default;
       IterSnapshot& operator= (IterSnapshot &&)     = default;
       
-      operator bool() const { return isValid(); }
-      size_t size()   const { return buffer_.size(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
+      
+      size_t
+      size()  const
+        {
+          return buffer_.size();
+        }
       
       
       
diff --git a/src/lib/iter-adapter.hpp b/src/lib/iter-adapter.hpp
index 8834b166c..1364c36d5 100644
--- a/src/lib/iter-adapter.hpp
+++ b/src/lib/iter-adapter.hpp
@@ -194,7 +194,11 @@ namespace lib {
         , pos_()
         { }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       /* === lumiera forward iterator concept === */
@@ -352,7 +356,11 @@ namespace lib {
         : core_()
         { }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       /* === lumiera forward iterator concept === */
@@ -491,7 +499,11 @@ namespace lib {
         , e_(oIter.getEnd())
         { }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       /* === lumiera forward iterator concept === */
@@ -599,7 +611,11 @@ namespace lib {
       
       // standard copy operations acceptable
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       
@@ -732,7 +748,11 @@ namespace lib {
         : i_(srcIter)
         { }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       
diff --git a/src/lib/itertools.hpp b/src/lib/itertools.hpp
index e95fdd654..d1fb2a616 100644
--- a/src/lib/itertools.hpp
+++ b/src/lib/itertools.hpp
@@ -205,7 +205,11 @@ namespace lib {
           hasData();
         }
       
-      operator bool() const { return isValid(); }
+      explicit
+      operator bool() const
+        {
+          return isValid();
+        }
       
       
       
diff --git a/src/lib/sync.hpp b/src/lib/sync.hpp
index add2d7ec6..76c7c034b 100644
--- a/src/lib/sync.hpp
+++ b/src/lib/sync.hpp
@@ -257,7 +257,7 @@ namespace lib {
             return *this;
           }
         
-        operator bool() { return 0 != tv_sec; } // allows if (timeout_)....
+        explicit operator bool() { return 0 != tv_sec; } // allows if (timeout_)....
       };
     
     
@@ -368,7 +368,7 @@ namespace lib {
           }
         
         void setTimeout(ulong relative) {timeout_.setOffset(relative);}
-        bool isTimedWait()              {return (timeout_);}
+        bool isTimedWait()              {return bool{timeout_};}
       };
     
     typedef Mutex<Wrapped_ExclusiveMutex> NonrecursiveLock_NoWait;
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 79f8e3d95..8dc2cdc72 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -1188,7 +1188,7 @@ namespace test{
               bool
               checkPoint()  const
                 {
-                  return src;
+                  return bool{src};
                 }
               
               State&

From 37b2e2e4adaf9e46c62fede1adb1b3198a3e9253 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 00:54:29 +0200
Subject: [PATCH 061/178] TreeExplorer: prevent ill guided type adaptor choice

when adapting a functor, the wrapper automatically decides
if this functor was meant to be used in "monadic style" (value -> new monad)
or in "manipulate state-core style"  (iter& -> iter)

Unfortunately, in some cases functions accepting a partially built pipeline
will be classified in the wrong way, due to the fact that IterableDecorator
has a templated wildcard constructor and thus seems to accept the conversion
value_type -> IterableDecorator. This causes the "monadic style" to be chosen
erroneously, and leads to a template instantiation failure just at the point when
the generated functor will be used.

The solution is to explicitly *rule out* the monadic usage style
in all those cases, where the *argument* of the functor to bind can
in fact be directly constructed / converted from the source iterator
or state core. Because, if that is the case
- it is superfluous explicitly to dereference the source iterator;
  the functor can do the same
- chances are that the "manipulation style" was intended
  (as was the case in the concrete example at hand here)
---
 src/lib/iter-tree-explorer.hpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index d7b296989..a2e48cf6c 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -502,8 +502,9 @@ namespace lib {
         
         /** adapt to a functor, which accepts the value type of the source sequence ("monadic" usage pattern) */
         template<class IT>
-        struct ArgAccessor<IT,   enable_if<is_convertible<typename IT::value_type, Arg>>>
-          {
+        struct ArgAccessor<IT,   enable_if<__and_<is_convertible<typename IT::value_type, Arg>
+                                                 ,__not_<is_convertible<IT, Arg>>>>>        // need to exclude the latter, since IterableDecorator
+          {                                                                                //  often seems to accept IT::value_type (while in fact it doesn't)
             static auto build() { return [](auto& iter) { return *iter; }; }
           };
         

From 6834c26470e00d0d6fcb280a351d694b57168c97 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 5 Sep 2018 06:27:36 +0200
Subject: [PATCH 062/178] ChainSearch: draft a solution how to construct the
 pipeline builder base type

this is a tricky undertaking, since our treeExplore() helper constructs
a complex wrapped type, depending on the actual builder expressions used.

Solution is to use decltype on the result of a helper function,
and let the _DecoratorTraits from TreeExplorer do the necessary type adaptations
---
 src/lib/iter-chain-search.hpp            | 33 +++++++++++++++++-------
 src/lib/iter-tree-explorer.hpp           |  7 +++++
 tests/library/iter-chain-search-test.cpp | 17 +++++++++++-
 wiki/thinkPad.ichthyo.mm                 | 15 +++++++++++
 4 files changed, 61 insertions(+), 11 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index fd4fc98af..a9eeaf7b1 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -41,7 +41,7 @@
 
 
 #include "lib/error.hpp"
-//#include "lib/iter-adapter.hpp"
+#include "lib/iter-tree-explorer.hpp"
 
 //#include <type_traits>
 //#include <utility>
@@ -52,19 +52,32 @@
 namespace lib {
   
   using std::move;
+  using std::forward;
   using std::string;
   
   namespace iter {
     
+    namespace {
+      
+      template<class SRC>
+      auto
+      buildSearchFilter(SRC&& dataSource)
+      {
+        return treeExplore (forward<SRC> (dataSource))
+                  .mutableFilter();
+      }
+    }
+    
     /**
      * @internal implementation for....
      */
-    template<class IT>
-    class Cur
+    template<class SRC>
+    class _IterChainSetup
       {
         
         
       public:
+        using Pipeline = decltype( buildSearchFilter (std::declval<SRC>()) );
       };
     
     
@@ -81,10 +94,11 @@ namespace lib {
    * After the first combination of matches is exhausted, the search will backtrack and try to evaluate
    * the next combination, leading to a tree of search solutions.
    */
-//  template<class IT>
+  template<class SRC>
   class IterChainSearch
+    : public iter::_IterChainSetup<SRC>::Pipeline
     {
-//      using _Core = iter::CursorGear<IT>;
+      using _Base = typename iter::_IterChainSetup<SRC>::Pipeline;
 //      using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
       
     public:
@@ -122,7 +136,7 @@ namespace lib {
       IterChainSearch&&
       search (string target)
         {
-          UNIMPLEMENTED ("configure additional chained search condition");
+          TODO ("configure additional chained search condition");
           return move(*this);
         }
       
@@ -163,15 +177,14 @@ namespace lib {
    *         TreeExplorer will invalidate that variable (by moving it into the
    *         augmented iterator returned from such builder call).
    */
-  template<class CON>
+  template<class SRC>
   inline auto
-  chainSearch (CON&& srcData)
+  chainSearch (SRC&& srcData)
   {
 //  using SrcIter = typename _DecoratorTraits<IT>::SrcIter;
 //  using Base = iter_explorer::BaseAdapter<SrcIter>;
     
-    UNIMPLEMENTED ("figure out the Iterator type and build a suitable IterChainSearch instance");
-    return IterChainSearch();
+    return IterChainSearch<SRC>();
 //  return TreeExplorer<Base> (std::forward<IT> (srcSeq));
   }
   
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index a2e48cf6c..be4590e2c 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -166,6 +166,13 @@ namespace lib {
        // standard copy operations acceptable
       };
     
+    template<class CON>
+    struct StlRange<CON &>
+      : StlRange<CON>
+      {
+        using StlRange<CON>::StlRange;
+      };
+    
     
     /**
      * Decorate a state or logic core to treat it as Lumiera Forward Iterator.
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index 0967a50c9..abb3e79bb 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -28,7 +28,8 @@
 
 #include "lib/test/run.hpp"
 #include "lib/test/test-helper.hpp"
-#include "lib/format-util.hpp"
+#include "lib/format-util.hpp"  /////////////////////////////TODO necessary?
+#include "lib/format-cout.hpp"  /////////////////////////////TODO necessary?
 #include "lib/iter-chain-search.hpp"
 #include "lib/util.hpp"
 
@@ -69,6 +70,12 @@ namespace test{
   
   
   
+///////////////////////////////////////////////////TODO WIP
+#define SHOW_TYPE(_TY_) \
+    cout << "typeof( " << STRINGIFY(_TY_) << " )= " << lib::meta::typeStr<_TY_>() <<endl;
+#define SHOW_EXPR(_XX_) \
+    cout << "Probe " << STRINGIFY(_XX_) << " ? = " << _XX_ <<endl;
+///////////////////////////////////////////////////TODO WIP
   
   
   
@@ -100,6 +107,14 @@ namespace test{
                           .search("bacon")
                           .search("tomato");
           
+///////////////////////////////////////////////////TODO WIP
+          using Searcher = decltype(search);
+          SHOW_TYPE (Searcher);
+          SHOW_TYPE (Searcher::value_type);
+          SHOW_TYPE (Searcher::pointer);
+          
+//        TypeDebugger<Searcher::reference> guggi;   // --> std::__cxx11::basic_string<char> const&
+///////////////////////////////////////////////////TODO WIP
           CHECK (search);
           CHECK (not isnil(search));
           CHECK ("tomato" == *search);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d0ce3ca79..c067e3c85 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31247,6 +31247,18 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536018943472" TEXT="treeExplorer-Konfiguration">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536115788134" ID="ID_1444917457" MODIFIED="1536121333262" TEXT="Problem: Basis-Typ inferieren">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536115842002" ID="ID_1601482334" MODIFIED="1536121336222" TEXT="resultiert aus treeExplorer-Aufruf">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536121365113" ID="ID_1114285918" MODIFIED="1536121373905" TEXT="const STL container unterst&#xfc;tzen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536115852336" ID="ID_1044191557" MODIFIED="1536115863616" TEXT="mu&#xdf; aber geeignete Funktoren binden">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536018460817" TEXT="Abgreifen des Iterators von STL-Container">
 <icon BUILTIN="flag-yellow"/>
@@ -31282,6 +31294,9 @@
 <node CREATED="1536018580388" ID="ID_186304417" MODIFIED="1536018584425" TEXT="lovely spam">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
+<node CREATED="1536121351659" ID="ID_1756544626" MODIFIED="1536121358722" TEXT="const container">
+<icon BUILTIN="idea"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536018556917" TEXT="simpleSearch()">
 <icon BUILTIN="flag-yellow"/>

From a52ed91de0bc401f7c286024adf8a6c5b017056a Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 00:45:04 +0200
Subject: [PATCH 063/178] ChainSearch: draft a solution how to construct the
 Expand functor type

...now matters start to get really nasty,
since we have to pick up an infered type from a partially built pipeline
and use it to construct the signature for a functor to bind into the more elaborate complete pipeline
---
 src/lib/iter-chain-search.hpp            |  16 +-
 tests/library/iter-chain-search-test.cpp |   1 +
 wiki/thinkPad.ichthyo.mm                 | 245 ++++++++++++++++++++---
 3 files changed, 230 insertions(+), 32 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index a9eeaf7b1..e6a0b6651 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -61,11 +61,20 @@ namespace lib {
       
       template<class SRC>
       auto
-      buildSearchFilter(SRC&& dataSource)
+      buildSearchFilter (SRC&& dataSource)
       {
         return treeExplore (forward<SRC> (dataSource))
                   .mutableFilter();
       }
+      
+      template<class SRC, class FUN>
+      auto
+      buildExplorer (SRC&& dataSource, FUN&& expandFunctor)
+      {
+        return buildSearchFilter (forward<SRC> (dataSource))
+                  .expand (forward<FUN> (expandFunctor))
+                  .expandAll();
+      }
     }
     
     /**
@@ -74,10 +83,12 @@ namespace lib {
     template<class SRC>
     class _IterChainSetup
       {
+        using Filter = decltype( buildSearchFilter (std::declval<SRC>()) );
         
+        using StepFunctor = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter>::Functor;
         
       public:
-        using Pipeline = decltype( buildSearchFilter (std::declval<SRC>()) );
+        using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
       };
     
     
@@ -102,6 +113,7 @@ namespace lib {
 //      using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
       
     public:
+      using DebugPipeline = _Base;
 //    IterChainSearch()                                   =default;
 //    IterChainSearch (IterChainSearch&&)                 =default;
 //    IterChainSearch (IterChainSearch const&)            =default;
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index abb3e79bb..2a2e7b708 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -110,6 +110,7 @@ namespace test{
 ///////////////////////////////////////////////////TODO WIP
           using Searcher = decltype(search);
           SHOW_TYPE (Searcher);
+          SHOW_TYPE (Searcher::DebugPipeline);
           SHOW_TYPE (Searcher::value_type);
           SHOW_TYPE (Searcher::pointer);
           
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c067e3c85..a83f43e26 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -25107,8 +25107,7 @@
       match(&quot;a&quot;).after(&quot;b&quot;) scheitert, weil sich die Suche am ersten &quot;a&quot; festbei&#223;t.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1535835709996" ID="ID_239175550" MODIFIED="1535835723893" TEXT="wir brauchen zwingend eine Art Stack">
@@ -30761,8 +30760,7 @@
       ...von der entsprechenden Methode im Transformer
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smiley-oh"/>
 </node>
 <node CREATED="1535894292222" ID="ID_1328694952" MODIFIED="1535894370745" TEXT="vermutlich im Test &#xfc;bersehen">
@@ -30778,8 +30776,7 @@
       und im Unit-Test nur f&#252;r die Kombination Transformer + Explorer abgedeckt....
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 <node COLOR="#338800" CREATED="1535894385009" ID="ID_1130325761" MODIFIED="1535898198283" TEXT="Testfall schreiben">
@@ -30804,8 +30801,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535893231835" ID="ID_637460742" MODIFIED="1535893326431" TEXT="Such-Pr&#xe4;dikate auf EventLog">
 <richcontent TYPE="NOTE"><html>
@@ -30829,8 +30825,7 @@
       hinter der sich eine verkettete Suche mit Backtracking verbirgt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893353955" ID="ID_1665477644" MODIFIED="1535893590393" TEXT="bestehende L&#xf6;sung umstellen">
 <linktarget COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" SOURCE="ID_1626597975" STARTARROW="None" STARTINCLINATION="1631;0;"/>
 <icon BUILTIN="pencil"/>
@@ -30855,8 +30850,7 @@
       sofern l&#228;ngerfristig Itertools durch TreeExplorer abgel&#246;st werden k&#246;nnte
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node COLOR="#338800" CREATED="1535903530421" ID="ID_384303362" MODIFIED="1535932193036" TEXT="Aua">
 <icon BUILTIN="smily_bad"/>
@@ -30900,8 +30894,7 @@
       Diese wird dann per Value gecaptured, was die gew&#252;nschte Kopie bewirkt.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1535904168943" ID="ID_1936705749" MODIFIED="1535904249188" TEXT="eine unn&#xf6;tige Kopie">
 <richcontent TYPE="NOTE"><html>
@@ -30925,8 +30918,7 @@
       (und auch daf&#252;r ist die Syntax grausam)
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1535904461720" FOLDED="true" ID="ID_317840110" MODIFIED="1535932207865" TEXT="will ich das wirklich.....?">
@@ -30940,8 +30932,7 @@
       ...es soll blo&#223; einfach funktionieren!!!!!!!!!!!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 <node CREATED="1535906366785" ID="ID_1488862884" MODIFIED="1535906388442" TEXT="Komplexit&#xe4;t entsteht aus der Flexibilit&#xe4;t der Argumente">
@@ -30972,8 +30963,7 @@
       die Itertools komplett durch den TreeExplorer abl&#246;sen zu k&#246;nnen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
 </node>
@@ -31046,8 +31036,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -31145,8 +31134,7 @@
       ...so da&#223; es nur noch wenige Zugangs-Punkte zum unterliegenden Iterator gibt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1535934121614" ID="ID_757923717" MODIFIED="1535937964888" TEXT="umstellen von IterTools -&gt; TreeExplorer">
@@ -31165,8 +31153,7 @@
       und au&#223;erdem haben wir nun ein direktes API f&#252;r die Laufrichtung
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -31193,8 +31180,7 @@
       <u>Invariante</u>: <b>pullMatch</b>()
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 <node CREATED="1535894029921" ID="ID_152779506" MODIFIED="1535894037411" TEXT="den Stack schrittweise hochsteigen"/>
 </node>
@@ -31235,8 +31221,207 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536018459425" TEXT="Schritte als Funktoren">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018684754" ID="ID_1076606298" MODIFIED="1536018696034" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018684754" ID="ID_1076606298" MODIFIED="1536273597914" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
+<icon BUILTIN="pencil"/>
+<node CREATED="1536184281271" ID="ID_1736323474" MODIFIED="1536184299802" TEXT="Problem: Funktor-Signatur zu Beginn nicht bekannt">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1536184313018" ID="ID_306473960" MODIFIED="1536184367056" TEXT="es w&#xfc;rde gen&#xfc;gen, wenn der Werttyp kompatibel ist">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1536184383689" ID="ID_1457889497" MODIFIED="1536184509943">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      wir <i>m&#252;ssen </i>hier eine Festlegung treffen
+    </p>
+  </body>
+</html></richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...weil die Ergebnisse der einzelnen Schritt-Funktoren,
+    </p>
+    <p>
+      jeweils in den Auswertungs-Stack gepackt werden sollen.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Daher m&#252;ssen sie untereinander kompatibel sein.
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="yes"/>
+</node>
+<node COLOR="#338800" CREATED="1536184509936" ID="ID_936035440" MODIFIED="1536184832177" TEXT="pragmatische Wahl: Kopie des Basis-Filters">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      im typischen Fall kopiert man den Basis-Iterator,
+    </p>
+    <p>
+      und manipuliert dann einige Einstellungen auf diesem.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wir k&#246;nnten diese Kopie-Semantik sogar <i>erzwingen,</i>
+    </p>
+    <p>
+      indem wir als Argument-Typ des Schritt-Funktors eine const&amp; vorgeben
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1536185340920" ID="ID_1706168706" MODIFIED="1536185362297" TEXT="also: konstruiere Pipeline mit Filter"/>
+<node CREATED="1536185364045" ID="ID_301562283" MODIFIED="1536185381295" TEXT="dann: Filter -&gt; Filter als Funktor vorgeben"/>
+<node COLOR="#338800" CREATED="1536194368432" ID="ID_665607293" MODIFIED="1536273432151" TEXT="kniffelig in der Praxis">
+<icon BUILTIN="smiley-angry"/>
+<node CREATED="1536194407802" ID="ID_752443094" MODIFIED="1536194421332" TEXT="der &quot;Filter&quot;-Typ ist in einen TreeExplorer gewrappt"/>
+<node CREATED="1536194422544" ID="ID_1594827200" MODIFIED="1536194440618" TEXT="konkret ist der Quell-Typ aber nur ein IterableDecorator"/>
+<node CREATED="1536194493975" ID="ID_1706559693" MODIFIED="1536194563398" TEXT="und der doppelt gewrappter Funktor....">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...den ich mache, um den Adapter in jedem Einzelfall zu bekommen
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1536194565261" ID="ID_892309176" MODIFIED="1536194581751" TEXT="...f&#xfc;hrt dazu, da&#xdf; der innere Funktor ein Template ist"/>
+<node CREATED="1536194582411" ID="ID_427362932" MODIFIED="1536194600916" TEXT="und deshalb mit IterableDecorator&amp; ge-probed wird"/>
+<node CREATED="1536195443615" ID="ID_1532213156" MODIFIED="1536195450119" TEXT="Problem">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1536195452006" ID="ID_1758963929" MODIFIED="1536195513457" TEXT="IterableDecorator hat einen Wildcard-Konstruktor"/>
+<node CREATED="1536195515142" ID="ID_207755200" MODIFIED="1536271102169" TEXT="deshalb scheint die Konvertierung string -&gt; IterableDecorator m&#xf6;glich">
+<linktarget COLOR="#d83e76" DESTINATION="ID_207755200" ENDARROW="Default" ENDINCLINATION="262;10;" ID="Arrow_ID_1979852913" SOURCE="ID_360255766" STARTARROW="None" STARTINCLINATION="262;5;"/>
+</node>
+<node CREATED="1536195621631" ID="ID_1458745075" MODIFIED="1536195633265" TEXT="...was dann aber im eingewickelten MutableFunctor scheitert"/>
+<node CREATED="1536195633854" ID="ID_1469022446" MODIFIED="1536195641136" TEXT="(und ohnehin ein Schmarrrn w&#xe4;re)"/>
+</node>
+<node CREATED="1536195694269" ID="ID_260759561" MODIFIED="1536273228593" TEXT="L&#xf6;sung?">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536195707299" ID="ID_1061111376" MODIFIED="1536273251780" TEXT="der innere Funktor ist generisch">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1536195819221" ID="ID_730902625" MODIFIED="1536270305176" TEXT="auf den flexiblen Adapter verzichten">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1536270307241" ID="ID_1232849452" MODIFIED="1536270310156" TEXT="bringt nix"/>
+<node CREATED="1536270310936" ID="ID_1638227415" MODIFIED="1536270381734" TEXT="string -&gt; IterableDecorator greift trotzdem">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ....und f&#228;llt dann beim Instantiieren des Template auf die Schnautze
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1536271061916" ID="ID_360255766" MODIFIED="1536271107605" TEXT="ist ein grunds&#xe4;tzliches Problem">
+<arrowlink COLOR="#d83e76" DESTINATION="ID_207755200" ENDARROW="Default" ENDINCLINATION="262;10;" ID="Arrow_ID_1979852913" STARTARROW="None" STARTINCLINATION="262;5;"/>
+<icon BUILTIN="broken-line"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1536271137786" ID="ID_618430280" MODIFIED="1536273236978" TEXT="Fehl-Konvertierung gezielt unterbinden">
+<icon BUILTIN="forward"/>
+<node CREATED="1536271169845" ID="ID_481868916" MODIFIED="1536271374301">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sofern eine Initialisierung ausidem Source-Iterator <i>m&#246;glich ist</i>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536271209768" ID="ID_1767817102" MODIFIED="1536271396476" TEXT="...weil es dann grunds&#xe4;tzch nicht notwendig ist, eigens etwas zu tun"/>
+</node>
+</node>
+<node CREATED="1536273280517" ID="ID_422856174" MODIFIED="1536273415840">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und sonst ist das <i>nicht wirklich</i>&#160;&quot;kniffelig&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...blo&#223; sind die zig-fach geschachtelten Template-Typen,
+    </p>
+    <p>
+      die dann die Intantiierungs-Call-Hierarchie bev&#246;lkern,
+    </p>
+    <p>
+      nahezu unlesbar....
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      AAber ... wenn es erst mal duch den Compiler ist,
+    </p>
+    <p>
+      dann <i>sollte </i>der Optimizer diese gesamten x-fachen Wrapper nahezu restlos entfernen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="smiley-neutral"/>
+</node>
+</node>
+<node CREATED="1536273453876" ID="ID_1094128800" MODIFIED="1536273496418" TEXT="verwende nun  BoundFunctor&lt;Filter(Filter const&amp;)&gt; als Signatur">
+<icon BUILTIN="info"/>
+<node CREATED="1536273527418" ID="ID_180233427" MODIFIED="1536273554776">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Konsequenz: jede Argument-Funktion wird <i>nochmal</i>&#160;gewrappt
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1536273556422" ID="ID_368248341" MODIFIED="1536273569201" TEXT="...und kann damit auch ein generisches Lambda sein">
+<icon BUILTIN="idea"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018696977" ID="ID_1710558292" MODIFIED="1536018702049" TEXT="Sequenz solcher Funktoren">
 <icon BUILTIN="flag-yellow"/>

From 9b0937bc63afe57809df931ba8a0c875527485f2 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 01:56:41 +0200
Subject: [PATCH 064/178] ChainSearch: move into namespace iter

...seems to be a not-so-commonly used helper
---
 src/lib/iter-chain-search.hpp            | 47 ++++++++++++------------
 tests/library/iter-chain-search-test.cpp |  4 +-
 2 files changed, 25 insertions(+), 26 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index e6a0b6651..353f73c86 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -50,31 +50,30 @@
 
 
 namespace lib {
+namespace iter {
   
   using std::move;
   using std::forward;
   using std::string;
   
-  namespace iter {
+  
+  namespace { // implementation helpers...
     
-    namespace {
-      
-      template<class SRC>
-      auto
-      buildSearchFilter (SRC&& dataSource)
-      {
-        return treeExplore (forward<SRC> (dataSource))
-                  .mutableFilter();
-      }
-      
-      template<class SRC, class FUN>
-      auto
-      buildExplorer (SRC&& dataSource, FUN&& expandFunctor)
-      {
-        return buildSearchFilter (forward<SRC> (dataSource))
-                  .expand (forward<FUN> (expandFunctor))
-                  .expandAll();
-      }
+    template<class SRC>
+    auto
+    buildSearchFilter (SRC&& dataSource)
+    {
+      return treeExplore (forward<SRC> (dataSource))
+                .mutableFilter();
+    }
+    
+    template<class SRC, class FUN>
+    auto
+    buildExplorer (SRC&& dataSource, FUN&& expandFunctor)
+    {
+      return buildSearchFilter (forward<SRC> (dataSource))
+                .expand (forward<FUN> (expandFunctor))
+                .expandAll();
     }
     
     /**
@@ -91,8 +90,8 @@ namespace lib {
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
       };
     
-    
-  } // namespace iter
+  }//(End)implementation helpers
+  
   
   
   
@@ -107,9 +106,9 @@ namespace lib {
    */
   template<class SRC>
   class IterChainSearch
-    : public iter::_IterChainSetup<SRC>::Pipeline
+    : public _IterChainSetup<SRC>::Pipeline
     {
-      using _Base = typename iter::_IterChainSetup<SRC>::Pipeline;
+      using _Base = typename _IterChainSetup<SRC>::Pipeline;
 //      using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
       
     public:
@@ -202,5 +201,5 @@ namespace lib {
   
   
   
-} // namespace lib
+}} // namespace lib::iter
 #endif /*SRC_LIB_ITER_CHAIN_SEARCH_H*/
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index 2a2e7b708..eb6f82f11 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -39,6 +39,7 @@
 
 
 namespace lib {
+namespace iter{
 namespace test{
   
   using ::Test;
@@ -157,5 +158,4 @@ namespace test{
   LAUNCHER (IterChainSearch_test, "unit common");
   
   
-}} // namespace lib::test
-
+}}} // namespace lib::iter::test

From d398177a714d098e364335c1d4759077a6e84cd4 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 03:02:41 +0200
Subject: [PATCH 065/178] ChainSearch: now actually build the processing
 pipeline in the ctor

..this resolves the most challenging part of the construction work;
we use the static helper functions to infer a type and construct a suitable
processing pipeline and we invoke the same helper to initialise the base class
in the ctor.

Incidentally... we can now drop all the placeholder stubs,
since we now inherit the full iterator and child explorer API.
The test now starts actually to work... we get spam and sausage!

TODO: now actually fill in the expand functor such as to pick the
concrete filter step in the chain from a sequence of preconfigured
filter bindings
---
 src/lib/iter-chain-search.hpp            | 74 +++++++++---------------
 tests/library/iter-chain-search-test.cpp |  3 +
 wiki/thinkPad.ichthyo.mm                 | 18 +++---
 3 files changed, 39 insertions(+), 56 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 353f73c86..e40b8e3a8 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -77,16 +77,21 @@ namespace iter {
     }
     
     /**
-     * @internal implementation for....
+     * @internal helper to rebind on inferred types.
+     * @remark we use the TreeExplorer framework to assemble the processing pipeline
+     *         from suitable building blocks configured with some lambdas. However, we
+     *         also want to _inherit_ from this filter pipeline, so to expose the typical
+     *         iterator operations without much ado. Thus we use some (static) helper function
+     *         templates, instantiate them with the actual source data iterator and pick up
+     *         the inferred type.
      */
     template<class SRC>
-    class _IterChainSetup
+    struct _IterChainSetup
       {
         using Filter = decltype( buildSearchFilter (std::declval<SRC>()) );
         
         using StepFunctor = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter>::Functor;
         
-      public:
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
       };
     
@@ -108,40 +113,25 @@ namespace iter {
   class IterChainSearch
     : public _IterChainSetup<SRC>::Pipeline
     {
-      using _Base = typename _IterChainSetup<SRC>::Pipeline;
-//      using _Parent = IterStateWrapper<typename _Core::value_type, _Core>;
+      using _Trait = _IterChainSetup<SRC>;
+      using _Base  = typename _Trait::Pipeline;
+      
+      using Filter = typename _Trait::Filter;
+      using Step   = typename _Trait::StepFunctor;
       
     public:
       using DebugPipeline = _Base;
-//    IterChainSearch()                                   =default;
-//    IterChainSearch (IterChainSearch&&)                 =default;
-//    IterChainSearch (IterChainSearch const&)            =default;
-//    IterChainSearch& operator= (IterChainSearch&&)      =default;
-//    IterChainSearch& operator= (IterChainSearch const&) =default;
       
+      using _Base::_Base;
       
-//    template<class CON>
-//    explicit
-//    IterChainSearch (CON& container)
-////    : _Parent(_Core(container.begin(), container.end()))
-//      { }
-//    
-//    IterChainSearch (IT&& begin, IT&& end)
-////    : _Parent(_Core(std::forward<IT>(begin), std::forward<IT>(end)))
-//      { }
+      template<class SEQ>
+      explicit
+      IterChainSearch (SEQ&& srcData)
+        : _Base{move (buildExplorer (forward<SEQ> (srcData)
+                                    ,Step{[this](Filter const& curr){ return configureFilterChain(curr); }}))}
+        { }
       
       
-      operator bool()  const
-        {
-          UNIMPLEMENTED ("solution test");
-        }
-      
-      bool
-      empty()  const
-        {
-          return not(*this);
-        }
-      
       
       /** */
       IterChainSearch&&
@@ -158,21 +148,13 @@ namespace iter {
           return move(*this);
         }
       
-      
-      /////////////////////////TODO dummy placeholder code. Replace by real iterator access
-      string&
-      operator*()  const
+    private:
+      Filter
+      configureFilterChain (Filter const& currentFilterState)
         {
-          static string boo{"bääääh"};
-          return boo;
+          uint depth = this->depth();
+          return Filter{}; /////TODO empty filter means recursion end
         }
-      
-      IterChainSearch&
-      operator++()
-        {
-          return *this;
-        }
-      /////////////////////////TODO dummy placeholder code. Replace by real iterator access
     };
   
   
@@ -192,11 +174,7 @@ namespace iter {
   inline auto
   chainSearch (SRC&& srcData)
   {
-//  using SrcIter = typename _DecoratorTraits<IT>::SrcIter;
-//  using Base = iter_explorer::BaseAdapter<SrcIter>;
-    
-    return IterChainSearch<SRC>();
-//  return TreeExplorer<Base> (std::forward<IT> (srcSeq));
+    return IterChainSearch<SRC>{forward<SRC> (srcData)};
   }
   
   
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index eb6f82f11..d7ff544a3 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -116,6 +116,9 @@ namespace test{
           SHOW_TYPE (Searcher::pointer);
           
 //        TypeDebugger<Searcher::reference> guggi;   // --> std::__cxx11::basic_string<char> const&
+          cout << "search[0]=" <<*search<<endl;
+          ++search;
+          cout << "search[1]=" <<*search<<endl;
 ///////////////////////////////////////////////////TODO WIP
           CHECK (search);
           CHECK (not isnil(search));
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index a83f43e26..e7dd2ac54 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31215,7 +31215,8 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536018873126" TEXT="abgeleiteten Frame konstruieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536281910775" TEXT="abgeleiteten Frame konstruieren">
+<linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="200;225;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="158;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
@@ -31288,7 +31289,7 @@
 </node>
 <node CREATED="1536185340920" ID="ID_1706168706" MODIFIED="1536185362297" TEXT="also: konstruiere Pipeline mit Filter"/>
 <node CREATED="1536185364045" ID="ID_301562283" MODIFIED="1536185381295" TEXT="dann: Filter -&gt; Filter als Funktor vorgeben"/>
-<node COLOR="#338800" CREATED="1536194368432" ID="ID_665607293" MODIFIED="1536273432151" TEXT="kniffelig in der Praxis">
+<node COLOR="#338800" CREATED="1536194368432" FOLDED="true" ID="ID_665607293" MODIFIED="1536274950954" TEXT="kniffelig in der Praxis">
 <icon BUILTIN="smiley-angry"/>
 <node CREATED="1536194407802" ID="ID_752443094" MODIFIED="1536194421332" TEXT="der &quot;Filter&quot;-Typ ist in einen TreeExplorer gewrappt"/>
 <node CREATED="1536194422544" ID="ID_1594827200" MODIFIED="1536194440618" TEXT="konkret ist der Quell-Typ aber nur ein IterableDecorator"/>
@@ -31429,19 +31430,20 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536018929138" TEXT="Pipeline konstruieren">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536018943472" TEXT="treeExplorer-Konfiguration">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536115788134" ID="ID_1444917457" MODIFIED="1536121333262" TEXT="Problem: Basis-Typ inferieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536281924138" TEXT="treeExplorer-Konfiguration">
+<arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="200;225;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="158;0;"/>
 <icon BUILTIN="pencil"/>
+</node>
+<node COLOR="#338800" CREATED="1536115788134" ID="ID_1444917457" MODIFIED="1536281847097" TEXT="Problem: Basis-Typ inferieren">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536115842002" ID="ID_1601482334" MODIFIED="1536121336222" TEXT="resultiert aus treeExplorer-Aufruf">
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1536121365113" ID="ID_1114285918" MODIFIED="1536121373905" TEXT="const STL container unterst&#xfc;tzen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536115852336" ID="ID_1044191557" MODIFIED="1536115863616" TEXT="mu&#xdf; aber geeignete Funktoren binden">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536115852336" ID="ID_1044191557" MODIFIED="1536281849860" TEXT="mu&#xdf; aber geeignete Funktoren binden">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 2b72175e04dd254fae45a0811b9e84b557932562 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 15:23:46 +0200
Subject: [PATCH 066/178] ChainSearch: Storage for the filter chain

---
 src/lib/iter-chain-search.hpp | 28 +++++++++++++++++---------
 wiki/thinkPad.ichthyo.mm      | 37 +++++++++++++++++------------------
 2 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index e40b8e3a8..1c2e66c11 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -46,6 +46,7 @@
 //#include <type_traits>
 //#include <utility>
 #include <utility>
+#include <vector>
 #include <string>
 
 
@@ -57,7 +58,7 @@ namespace iter {
   using std::string;
   
   
-  namespace { // implementation helpers...
+  namespace { // type construction helpers...
     
     template<class SRC>
     auto
@@ -95,7 +96,7 @@ namespace iter {
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
       };
     
-  }//(End)implementation helpers
+  }//(End)type construction helpers
   
   
   
@@ -103,9 +104,9 @@ namespace iter {
   
   /**
    * Iterator based linear search mechanism, with the ability to perform consecutive search with backtracking.
-   * The IterChainSearch can be configured with a sequence of search goals (filter conditions), and will
-   * apply these in succession on the underlying iterator. It will search for the first hit of the first
-   * condition, and then continue to search _from there_ matching on the second condition, and so on.
+   * The IterChainSearch can be configured with a sequence of search goals (filter conditions), and will apply
+   * these in succession on the underlying iterator. It will search _by linear search_ for the first hit of the
+   * first condition, and then continue to search _from there_ matching on the second condition, and so on.
    * After the first combination of matches is exhausted, the search will backtrack and try to evaluate
    * the next combination, leading to a tree of search solutions.
    */
@@ -119,11 +120,15 @@ namespace iter {
       using Filter = typename _Trait::Filter;
       using Step   = typename _Trait::StepFunctor;
       
+      std::vector<Step> stepChain_;
+      
     public:
-      using DebugPipeline = _Base;
-      
-      using _Base::_Base;
-      
+      /** Build a chain-search mechanism based on the given source data sequence.
+       * @remark iterators will be copied or moved as appropriate, while from a STL compliant
+       *         container just a pair of (`begin()`, `end()`) iterators is retrieved; the latter
+       *         is also the reason why a rvalue reference to STL container is rejected, since the
+       *         container needs to reside elsewhere; only the iterator is wrapped here.
+       */
       template<class SEQ>
       explicit
       IterChainSearch (SEQ&& srcData)
@@ -131,6 +136,9 @@ namespace iter {
                                     ,Step{[this](Filter const& curr){ return configureFilterChain(curr); }}))}
         { }
       
+      // inherited default ctor and standard copy operations
+      using _Base::_Base;
+      
       
       
       /** */
@@ -169,6 +177,8 @@ namespace iter {
    *         be sure to understand that invoking any further builder operation on
    *         TreeExplorer will invalidate that variable (by moving it into the
    *         augmented iterator returned from such builder call).
+   * @param srcData either a »Lumiera Forward Iterator«, a _reference_ to a STL
+   *         container, or a [»State Core«](\ref lib::IterStateWrapper) object.
    */
   template<class SRC>
   inline auto
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e7dd2ac54..d4a638b21 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31215,15 +31215,15 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536281910775" TEXT="abgeleiteten Frame konstruieren">
-<linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="200;225;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="158;0;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536326576841" TEXT="abgeleiteten Frame konstruieren">
+<linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536018459425" TEXT="Schritte als Funktoren">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018684754" ID="ID_1076606298" MODIFIED="1536273597914" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536326484790" TEXT="Schritte als Funktoren">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018684754" FOLDED="true" ID="ID_1076606298" MODIFIED="1536326570743" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536184281271" ID="ID_1736323474" MODIFIED="1536184299802" TEXT="Problem: Funktor-Signatur zu Beginn nicht bekannt">
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -31403,7 +31403,8 @@
 <icon BUILTIN="smiley-neutral"/>
 </node>
 </node>
-<node CREATED="1536273453876" ID="ID_1094128800" MODIFIED="1536273496418" TEXT="verwende nun  BoundFunctor&lt;Filter(Filter const&amp;)&gt; als Signatur">
+</node>
+<node CREATED="1536273453876" HGAP="46" ID="ID_1094128800" MODIFIED="1536326529585" TEXT="verwende nun  BoundFunctor&lt;Filter(Filter const&amp;)&gt; als Signatur" VSHIFT="5">
 <icon BUILTIN="info"/>
 <node CREATED="1536273527418" ID="ID_180233427" MODIFIED="1536273554776">
 <richcontent TYPE="NODE"><html>
@@ -31415,23 +31416,21 @@
       Konsequenz: jede Argument-Funktion wird <i>nochmal</i>&#160;gewrappt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1536273556422" ID="ID_368248341" MODIFIED="1536273569201" TEXT="...und kann damit auch ein generisches Lambda sein">
 <icon BUILTIN="idea"/>
 </node>
 </node>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018696977" ID="ID_1710558292" MODIFIED="1536018702049" TEXT="Sequenz solcher Funktoren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018696977" ID="ID_1710558292" MODIFIED="1536326467718" TEXT="Sequenz solcher Funktoren">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536018929138" TEXT="Pipeline konstruieren">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536281924138" TEXT="treeExplorer-Konfiguration">
-<arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="200;225;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="158;0;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536326576841" TEXT="treeExplorer-Konfiguration">
+<arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="pencil"/>
 </node>
 <node COLOR="#338800" CREATED="1536115788134" ID="ID_1444917457" MODIFIED="1536281847097" TEXT="Problem: Basis-Typ inferieren">
@@ -31447,13 +31446,13 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536018460817" TEXT="Abgreifen des Iterators von STL-Container">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536019004173" TEXT="Wert-Typ finden">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536326442522" TEXT="macht normalerweise TreeExplorer">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" SOURCE="ID_1700266521" STARTARROW="None" STARTINCLINATION="76;-5;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018887223" ID="ID_832237706" MODIFIED="1536018900966" TEXT="Range-Iter konstruieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018887223" ID="ID_832237706" MODIFIED="1536326437258" TEXT="speziell: gear switch">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>

From d923138d1c65eb0f880419311f9901d0711a2797 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 16:17:35 +0200
Subject: [PATCH 067/178] ChainSearch: configure the core of the chained search
 mechanism

...based on a monadic tree expansion: we define a single step,
which takes the current filter configuration and builds the next
filter configuration, based on a stored chain of configuration functions

The actual exhausting depth-first results just by the greedy application pattern,
and uses the stack embedded in the "Explorer" layer of TreeExplorer
---
 src/lib/iter-chain-search.hpp            | 58 ++++++++++++++++++++----
 tests/library/iter-chain-search-test.cpp |  3 --
 wiki/thinkPad.ichthyo.mm                 | 36 +++++++--------
 3 files changed, 68 insertions(+), 29 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 1c2e66c11..01e957cd7 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -42,6 +42,7 @@
 
 #include "lib/error.hpp"
 #include "lib/iter-tree-explorer.hpp"
+#include "lib/meta/util.hpp"
 
 //#include <type_traits>
 //#include <utility>
@@ -57,6 +58,8 @@ namespace iter {
   using std::forward;
   using std::string;
   
+  using lib::meta::disable_if;
+  
   
   namespace { // type construction helpers...
     
@@ -91,7 +94,7 @@ namespace iter {
       {
         using Filter = decltype( buildSearchFilter (std::declval<SRC>()) );
         
-        using StepFunctor = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter>::Functor;
+        using StepFunctor = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter const&>::Functor;
         
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
       };
@@ -117,6 +120,7 @@ namespace iter {
       using _Trait = _IterChainSetup<SRC>;
       using _Base  = typename _Trait::Pipeline;
       
+      using Value  = typename _Base::value_type;
       using Filter = typename _Trait::Filter;
       using Step   = typename _Trait::StepFunctor;
       
@@ -141,18 +145,53 @@ namespace iter {
       
       
       
-      /** */
-      IterChainSearch&&
-      search (string target)
+      /** configure additional chained search condition.
+       * @param a functor `Filter const& -> filter`, which takes a current filter configuration,
+       *        returning a copy from this configuration, possibly configured differently.
+       * @note the given functor, lambda or function reference will be wrapped and adapted
+       *       to conform to the required function signature. When using a generic lambda,
+       *       the argument type `Filter const&` is assumed
+       * @remarks the additional chained search condition given here will be applied _after_
+       *       matching all other conditions already in the filter chain. Each such condition
+       *       is used to _filter_ the underlying source iterator, i.e. pull it until finding
+       *       and element to match the condition. Basically these conditions are _not_ used in
+       *       conjunction, but rather one after another. But since each such step in the chain
+       *       is defined by a functor, which gets the previous filter configuration as argument,
+       *       it is _possible_ to build a step which _extends_ or sharpens the preceding condition.
+       */
+      template<typename FUN>
+                                          disable_if<is_convertible<FUN, Value>,
+      IterChainSearch&&                             >
+      search (FUN&& configureSearchStep)
         {
-          TODO ("configure additional chained search condition");
+          stepChain_.emplace_back (Step{forward<FUN> (configureSearchStep)});
           return move(*this);
         }
       
+      /** attach additional direct search for a given value.
+       *  After successfully searching for all the conditions currently in the filter chain,
+       *  the underlying iterator will finally be pulled until matching the given target value.
+       */
+      IterChainSearch&&
+      search (Value target)
+        {
+          search ([=](Filter filter)      // note: filter taken by value
+                    {
+                      filter.setNewFilter ([target](Value const& currVal) { return currVal == target; });
+                      return filter;   // return copy of the original state with changed filter
+                    });
+          return move(*this);
+        }
+      
+      /** drop all search condition frames.
+       * @remark the filter chain becomes empty,
+       *         passing through the unaltered
+       *         source sequence
+       */
       IterChainSearch&&
       clearFilter()
         {
-          UNIMPLEMENTED ("drop all search condition frames");
+          stepChain_.clear();
           return move(*this);
         }
       
@@ -160,8 +199,11 @@ namespace iter {
       Filter
       configureFilterChain (Filter const& currentFilterState)
         {
-          uint depth = this->depth();
-          return Filter{}; /////TODO empty filter means recursion end
+          uint depth = currentFilterState.depth();
+          if (depth < stepChain_.size())
+            return stepChain_[depth](currentFilterState); // augmented copy
+          else
+            return Filter{};     // empty filter indicates recursion end
         }
     };
   
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index d7ff544a3..89f193a11 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -111,14 +111,11 @@ namespace test{
 ///////////////////////////////////////////////////TODO WIP
           using Searcher = decltype(search);
           SHOW_TYPE (Searcher);
-          SHOW_TYPE (Searcher::DebugPipeline);
           SHOW_TYPE (Searcher::value_type);
           SHOW_TYPE (Searcher::pointer);
           
 //        TypeDebugger<Searcher::reference> guggi;   // --> std::__cxx11::basic_string<char> const&
           cout << "search[0]=" <<*search<<endl;
-          ++search;
-          cout << "search[1]=" <<*search<<endl;
 ///////////////////////////////////////////////////TODO WIP
           CHECK (search);
           CHECK (not isnil(search));
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d4a638b21..92ac0c48a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31196,15 +31196,15 @@
 <node CREATED="1536018293535" ID="ID_361886715" MODIFIED="1536018315757" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Wert-equality-Match"/>
 <node CREATED="1536018276593" ID="ID_1222260775" MODIFIED="1536018287299" TEXT="prekonfigurierte Builder-Funktionen f&#xfc;r Standardf&#xe4;lle"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1536018457506" TEXT="Implementierung">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536018458786" TEXT="Kern: Explore-Mechanismus">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018644456" ID="ID_477475522" MODIFIED="1536018654007" TEXT="Signatur der Explore-Funktion festlegen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1536329770737" TEXT="Implementierung">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536329750864" TEXT="Kern: Explore-Mechanismus">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018644456" ID="ID_477475522" MODIFIED="1536329729458" TEXT="Signatur der Explore-Funktion festlegen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018705511" ID="ID_1131109871" MODIFIED="1536018800891" TEXT="greedy Tiefensuche">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018705511" ID="ID_1131109871" MODIFIED="1536329731179" TEXT="greedy Tiefensuche">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018802738" ID="ID_1560348563" MODIFIED="1536018807506" TEXT="Abbruchbedingung">
 <icon BUILTIN="flag-yellow"/>
@@ -31215,9 +31215,9 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536326576841" TEXT="abgeleiteten Frame konstruieren">
+<node COLOR="#338800" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536329736419" TEXT="abgeleiteten Frame konstruieren">
 <linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="149;-3;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536326484790" TEXT="Schritte als Funktoren">
@@ -31456,14 +31456,14 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018442123" ID="ID_829730232" MODIFIED="1536018463121" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Match">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018985450" ID="ID_1700266521" MODIFIED="1536019004173" TEXT="Wert-Typ deduzieren">
+<node COLOR="#338800" CREATED="1536018442123" ID="ID_829730232" MODIFIED="1536329759111" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Match">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018985450" ID="ID_1700266521" MODIFIED="1536329755895" TEXT="Wert-Typ deduzieren">
 <arrowlink DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" STARTARROW="None" STARTINCLINATION="76;-5;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536019008151" ID="ID_29813547" MODIFIED="1536019026064" TEXT="equality comparision in Lambda">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536019008151" ID="ID_29813547" MODIFIED="1536329757422" TEXT="equality comparision in Lambda">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018471975" ID="ID_1115030606" MODIFIED="1536018481902" TEXT="Variante f&#xfc;r bidirektionale Suche">
@@ -31484,8 +31484,8 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536018556917" TEXT="simpleSearch()">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536329779734" TEXT="simpleSearch()">
+<icon BUILTIN="pencil"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018544936" ID="ID_1750921303" MODIFIED="1536018557580" TEXT="chainedIteration()">
 <icon BUILTIN="flag-yellow"/>

From c0b8b63df037e6f68f42eae5809446fb2ef3166f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 20:44:25 +0200
Subject: [PATCH 068/178] ChainSearch: ensure to pass current state without
 spurious copy

It is essential that we pass the current state of the filter
into the expand functor, where it needs to be copied (once!)
to create a child state, which can then be augmented.

This augmented state is then pushed onto a stack, to enable backtracking.


Due to the flexible adapters and the wrapping into the TreeExplorer builder,
we ended up performing several spurious copies on the current state
---
 src/lib/iter-chain-search.hpp  | 21 +++++---
 src/lib/iter-tree-explorer.hpp | 10 ++++
 wiki/thinkPad.ichthyo.mm       | 93 ++++++++++++++++++++++++++++++++++
 3 files changed, 118 insertions(+), 6 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 01e957cd7..6c661abc5 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -92,11 +92,19 @@ namespace iter {
     template<class SRC>
     struct _IterChainSetup
       {
-        using Filter = decltype( buildSearchFilter (std::declval<SRC>()) );
-        
-        using StepFunctor = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter const&>::Functor;
+        using Filter = decltype( buildSearchFilter(std::declval<SRC>()).asIterator() );
         
+        using StepFunctor = std::function<Filter(Filter const&)>;
+        using StepWrapper = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter const&>::Functor;
+                                                                                      // ^^^^^^^^^^^^^ used as argument on generic lambda 
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
+        
+        static Pipeline
+        configurePipeline (SRC&& dataSource, StepFunctor step)
+          {
+            return buildExplorer(forward<SRC> (dataSource), move (step));
+          }
+        
       };
     
   }//(End)type construction helpers
@@ -122,7 +130,7 @@ namespace iter {
       
       using Value  = typename _Base::value_type;
       using Filter = typename _Trait::Filter;
-      using Step   = typename _Trait::StepFunctor;
+      using Step   = typename _Trait::StepWrapper;
       
       std::vector<Step> stepChain_;
       
@@ -136,8 +144,8 @@ namespace iter {
       template<class SEQ>
       explicit
       IterChainSearch (SEQ&& srcData)
-        : _Base{move (buildExplorer (forward<SEQ> (srcData)
-                                    ,Step{[this](Filter const& curr){ return configureFilterChain(curr); }}))}
+        : _Base{_Trait::configurePipeline (forward<SEQ> (srcData)
+                                          ,[this](Filter const& curr){ return configureFilterChain(curr); })}
         { }
       
       // inherited default ctor and standard copy operations
@@ -165,6 +173,7 @@ namespace iter {
       search (FUN&& configureSearchStep)
         {
           stepChain_.emplace_back (Step{forward<FUN> (configureSearchStep)});
+          this->iterNext();    // establish invariant: expand to leaf and forward to first match
           return move(*this);
         }
       
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index be4590e2c..a7f5c5686 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -1474,6 +1474,16 @@ namespace lib {
         {
           return IterExploreSource<value_type> {move(*this)};
         }
+      
+      
+      /** _terminal builder_ to strip the TreeExplorer and expose the built Pipeline.
+       * @return a »Lumiera Forward iterator« incorporating the complete pipeline logic.
+       */
+      SRC
+      asIterator()
+        {
+          return SRC {move(*this)};
+        }
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 92ac0c48a..4b7f561ef 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31215,6 +31215,99 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536340043113" ID="ID_1162927294" MODIFIED="1536340232698" TEXT="aktuellen Zustand als Argument">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536340051461" ID="ID_1232898317" MODIFIED="1536345629500" TEXT="Wichtig: Referenz">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1232898317" ENDARROW="Default" ENDINCLINATION="550;0;" ID="Arrow_ID_1329838760" SOURCE="ID_1977741990" STARTARROW="None" STARTINCLINATION="109;0;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536340255596" ID="ID_1394539187" MODIFIED="1536340348029" TEXT="&#xfc;berfl&#xfc;ssige Kopie erstellt">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1536340275802" ID="ID_1689368781" MODIFIED="1536340292559" TEXT="im Aufruf des inneren (grwrappten) Funktors">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1536340301958" ID="ID_932937045" MODIFIED="1536340319264" TEXT="das reingegebene Argument zeigt noch (korrekt) auf die aktuelle Pipeline"/>
+<node CREATED="1536340325843" ID="ID_1834736142" MODIFIED="1536340342005" TEXT="aber das eingwickelte Lambda sieht eine const&amp; auf eine Kopie"/>
+</node>
+<node COLOR="#338800" CREATED="1536342792784" ID="ID_363834044" MODIFIED="1536342806527" TEXT="doppeltes Wrappen unn&#xf6;tig">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536342807526" ID="ID_1490056918" MODIFIED="1536342900054" TEXT="stattdessen im vector&lt;Step&gt; wrappen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...d.h. die <i>einzelnen</i>&#160;Steps in der Pipeline direkt wrappen.
+    </p>
+    <p>
+      Dann ist au&#223;en herum keine Anpassung der Argumente mehr notwendig,
+    </p>
+    <p>
+      und man kann die Expand-Funktion direkt als std::function-Objekt durchgeben
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1536340063062" ID="ID_1554385479" MODIFIED="1536340152896" TEXT="und zwar const&amp;">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...um den Expand-Funktor zu zwingen, eine Kopie zu machen;
+    </p>
+    <p>
+      es sollte die Filter-Konfiguration auf der Kopie manipuliert werden,
+    </p>
+    <p>
+      w&#228;hrend das Original auf dem Auswertungs-Stack liegen bleibt,
+    </p>
+    <p>
+      f&#252;r sp&#228;teres Backtracking...
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node COLOR="#338800" CREATED="1536345349807" ID="ID_219089137" MODIFIED="1536345462776" TEXT="TreeExplorer strippen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536345360133" ID="ID_23274093" MODIFIED="1536345384449" TEXT="wird immer noch au&#xdf;ern herumgewickelt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...damit man stets weitere Builder-Funktionen auf der Pipeline aufrufen kann
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536345386770" ID="ID_1554908631" MODIFIED="1536345421597" TEXT="wir brauchen aber den Filter-Iterator selber">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      weil wir <i>diesen</i>&#160;manipulieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536345422997" ID="ID_1977741990" MODIFIED="1536345460034" TEXT="nur so kann man eine Referenz auf den Zustand in den Expand-Funktor geben">
+<arrowlink DESTINATION="ID_1232898317" ENDARROW="Default" ENDINCLINATION="550;0;" ID="Arrow_ID_1329838760" STARTARROW="None" STARTINCLINATION="109;0;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
 <node COLOR="#338800" CREATED="1536018862802" ID="ID_1044555993" MODIFIED="1536329736419" TEXT="abgeleiteten Frame konstruieren">
 <linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="button_ok"/>

From 34b78fc47e4e25841ce04f8f9626fb28bb788640 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 7 Sep 2018 21:12:30 +0200
Subject: [PATCH 069/178] ChainSearch: identify some possible problems

- as implemented now, we will finally backtrack into the unfiltered base iterator
- it is not possible to implement a clearFilter() operation
---
 src/lib/iter-chain-search.hpp            |  3 +-
 tests/library/iter-chain-search-test.cpp |  6 ---
 wiki/thinkPad.ichthyo.mm                 | 54 ++++++++++++++++++++----
 3 files changed, 48 insertions(+), 15 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 6c661abc5..30d0779d5 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -200,6 +200,7 @@ namespace iter {
       IterChainSearch&&
       clearFilter()
         {
+        //////////////////////////////////////////////////////TODO logically broken. We need also to get rid of the current expansions, while retaining the current position
           stepChain_.clear();
           return move(*this);
         }
@@ -208,7 +209,7 @@ namespace iter {
       Filter
       configureFilterChain (Filter const& currentFilterState)
         {
-          uint depth = currentFilterState.depth();
+          uint depth = this->depth();
           if (depth < stepChain_.size())
             return stepChain_[depth](currentFilterState); // augmented copy
           else
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index 89f193a11..98ede36de 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -109,12 +109,6 @@ namespace test{
                           .search("tomato");
           
 ///////////////////////////////////////////////////TODO WIP
-          using Searcher = decltype(search);
-          SHOW_TYPE (Searcher);
-          SHOW_TYPE (Searcher::value_type);
-          SHOW_TYPE (Searcher::pointer);
-          
-//        TypeDebugger<Searcher::reference> guggi;   // --> std::__cxx11::basic_string<char> const&
           cout << "search[0]=" <<*search<<endl;
 ///////////////////////////////////////////////////TODO WIP
           CHECK (search);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4b7f561ef..5876d4158 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31206,17 +31206,17 @@
 <node COLOR="#338800" CREATED="1536018705511" ID="ID_1131109871" MODIFIED="1536329731179" TEXT="greedy Tiefensuche">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018802738" ID="ID_1560348563" MODIFIED="1536018807506" TEXT="Abbruchbedingung">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018816272" ID="ID_40740226" MODIFIED="1536018828687" TEXT="Ende der Filterkette">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018802738" ID="ID_1560348563" MODIFIED="1536353099280" TEXT="Abbruchbedingung">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018816272" ID="ID_40740226" MODIFIED="1536353104580" TEXT="Ende der Filterkette">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018829583" ID="ID_722941976" MODIFIED="1536018849229" TEXT="aktueller Filter ersch&#xf6;pft">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018829583" ID="ID_722941976" MODIFIED="1536353106355" TEXT="aktueller Filter ersch&#xf6;pft">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536340043113" ID="ID_1162927294" MODIFIED="1536340232698" TEXT="aktuellen Zustand als Argument">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536340043113" FOLDED="true" ID="ID_1162927294" MODIFIED="1536353155727" TEXT="aktuellen Zustand als Argument">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536340051461" ID="ID_1232898317" MODIFIED="1536345629500" TEXT="Wichtig: Referenz">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1232898317" ENDARROW="Default" ENDINCLINATION="550;0;" ID="Arrow_ID_1329838760" SOURCE="ID_1977741990" STARTARROW="None" STARTINCLINATION="109;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -31525,6 +31525,44 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536326576841" TEXT="treeExplorer-Konfiguration">
 <arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353107155" HGAP="27" ID="ID_1163131751" MODIFIED="1536353202260" TEXT="Problem: Basis-Layer" VSHIFT="23">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536353117930" ID="ID_625995057" MODIFIED="1536353132265" TEXT="hinzugef&#xfc;gt f&#xfc;r &quot;leeren&quot; Zustand">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1536353133264" ID="ID_597888311" MODIFIED="1536353144626" TEXT="Backtracking in leeren Zustand">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353280436" ID="ID_967254721" MODIFIED="1536353333302" TEXT="Problem: clearFilter()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536353286739" ID="ID_1451254899" MODIFIED="1536353295077" TEXT="bauchen wir das &#xfc;berhaupt">
+<icon BUILTIN="help"/>
+<node CREATED="1536353310976" ID="ID_809196267" MODIFIED="1536353322688" TEXT="&quot;Filter komplett abschalten&quot;">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1536353297546" ID="ID_1841672356" MODIFIED="1536353306185" TEXT="war erst mal nur f&#xfc;r Test">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353335500" ID="ID_698525366" MODIFIED="1536353392694" TEXT="Problem ist partielle Expansion">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      wir sind irgendwo im Baum, nicht auf dem Basis-Layer.
+    </p>
+    <p>
+      Und der Basis-Layer steht irgendwo, nicht an der aktuellen Position.
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1536115788134" ID="ID_1444917457" MODIFIED="1536281847097" TEXT="Problem: Basis-Typ inferieren">
 <icon BUILTIN="button_ok"/>

From e3ca8548a41e96cc49b40e6700f6e114f77758e9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 8 Sep 2018 14:41:51 +0200
Subject: [PATCH 070/178] TreeExplorer: allow for a disabled filter

...considered as one of the building blocks to resolve Problems in the Design of ChainSearch
---
 src/lib/iter-tree-explorer.hpp            |  21 +-
 tests/library/iter-tree-explorer-test.cpp |  25 +-
 wiki/thinkPad.ichthyo.mm                  | 798 ++++++++++++++--------
 3 files changed, 556 insertions(+), 288 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index a7f5c5686..def63b5a2 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -445,6 +445,8 @@ namespace lib {
   
   namespace iter_explorer { // Implementation of Iterator decorating layers...
     
+    constexpr auto ACCEPT_ALL = [](auto){return true;};
+    
     /**
      * @internal technical details of binding a functor into the TreeExplorer.
      * Notably, this happens when adapting an _"expansion functor"_ to allow expanding a given element
@@ -927,12 +929,19 @@ namespace lib {
             return unConst(*this);
           }
         
+        bool
+        isDisabled()  const
+          {
+            return not predicate_.boundFunction;
+          }
+        
         /** @note establishes the invariant:
          *        whatever the source yields as current element,
          *        has already been approved by our predicate */
         void
         pullFilter ()
           {
+            if (isDisabled()) return;
             while (srcIter() and not predicate_(srcIter()))
               ++srcIter();
           }
@@ -1082,6 +1091,13 @@ namespace lib {
                              });
           }
         
+        /** discard filter predicates and disable any filtering */
+        void
+        disableFilter()
+          {
+            _Base::predicate_.boundFunction = nullptr;
+          }
+        
         
       private:
         /** @internal boilerplate to remould the filter predicate in-place
@@ -1113,6 +1129,9 @@ namespace lib {
             WrappedPredicate& firstClause = _Base::predicate_;             // pick up the existing filter predicate
             ChainPredicate chainClause{forward<COND> (additionalClause)};  // wrap the extension predicate in a similar way
             
+            if (_Base::isDisabled())
+              firstClause.boundFunction = ACCEPT_ALL;
+                
             _Base::predicate_ = WrappedPredicate{buildCombinedClause (firstClause, chainClause)};
             _Base::pullFilter();                                           // pull to re-establish the Invariant
           }
@@ -1457,7 +1476,7 @@ namespace lib {
       auto
       mutableFilter()
         {
-          return mutableFilter ([](auto){ return true; });
+          return mutableFilter (iter_explorer::ACCEPT_ALL);
         }
       
       
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 8dc2cdc72..588be76c4 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -853,7 +853,7 @@ namespace test{
       verify_FilterChanges()
         {
           auto seq = treeExplore(CountDown{20})
-                       .mutableFilter([](uint){ return true; });
+                       .mutableFilter();
           
           auto takeEve = [](uint i){ return i%2 == 0; };
           auto takeTrd = [](uint i){ return i%3 == 0; };
@@ -908,6 +908,29 @@ namespace test{
           CHECK (0 == seq.p);                   // ...which he manipulated, so that core == 0
           CHECK (isnil (seq));                  // .....and thus iteration end is detected
           VERIFY_ERROR (ITER_EXHAUST, *seq );
+          
+          
+          // verify enabling and disabling...
+          auto seq2 = treeExplore(CountDown{10})
+                        .mutableFilter(takeTrd);
+          
+          CHECK (9 == *seq2);
+          seq2.disableFilter();
+          CHECK (9 == *seq2);
+          ++seq2;
+          CHECK (8 == *seq2);
+          seq2.andNotFilter (takeEve);
+          CHECK (7 == *seq2);
+          ++seq2;
+          CHECK (5 == *seq2);
+          seq2.disableFilter();
+          CHECK (5 == *seq2);
+          ++seq2;
+          CHECK (4 == *seq2);
+          ++seq2;
+          CHECK (3 == *seq2);
+          seq2.flipFilter();  // everything rejected
+          CHECK (isnil (seq2));
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 5876d4158..fc46297ea 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1,6 +1,6 @@
 <map version="1.0.1">
 <!-- To view this file, download free mind mapping software FreeMind from http://freemind.sourceforge.net -->
-<node BACKGROUND_COLOR="#6666ff" CREATED="1434127882200" ID="ID_1452170048" MODIFIED="1518487921106" STYLE="fork" TEXT="Lumi">
+<node BACKGROUND_COLOR="#6666ff" CREATED="1434127882200" ID="ID_1452170048" MODIFIED="1536409461357" STYLE="fork" TEXT="Lumi">
 <font NAME="SansSerif" SIZE="25"/>
 <node CREATED="1434128046296" ID="ID_1900827283" MODIFIED="1533388497006" POSITION="right" TEXT="GUI">
 <font BOLD="true" NAME="SansSerif" SIZE="14"/>
@@ -30746,6 +30746,8 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
+<node CREATED="1536410175049" ID="ID_1439541143" MODIFIED="1536410185984" TEXT="Erg&#xe4;nzungen">
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1535894221015" FOLDED="true" ID="ID_977007729" MODIFIED="1535898215661" TEXT="Bug im Filter-Layer">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535894239308" ID="ID_1809452702" MODIFIED="1535894251655" TEXT="Reihenfolge des Parent-Aufrufes in expandChildren()"/>
@@ -30783,6 +30785,400 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_650057716" MODIFIED="1536410348400" TEXT="Aufgabe: Filter erweiterbar machen">
+<linktarget COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="100;100;" ID="Arrow_ID_1700598512" SOURCE="ID_257876647" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535893718194" ID="ID_177803317" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
+<node CREATED="1535893752174" ID="ID_27030007" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sofern l&#228;ngerfristig Itertools durch TreeExplorer abgel&#246;st werden k&#246;nnte
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node COLOR="#338800" CREATED="1535903530421" ID="ID_326687543" MODIFIED="1535932193036" TEXT="Aua">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1535903536820" ID="ID_34512098" MODIFIED="1535903541919" TEXT="das wird komplex..."/>
+<node CREATED="1535903542556" ID="ID_945730027" MODIFIED="1535903551375" TEXT="der Filter-Layer ist hochgradig generisch"/>
+<node CREATED="1535904105560" ID="ID_1683260823" MODIFIED="1535904127224" TEXT="mu&#xdf; auch das Chain-Argument durch die Funktor-Traits schleusen"/>
+<node CREATED="1535904128524" ID="ID_1305515398" MODIFIED="1535904140074" TEXT="Code wird grausam">
+<icon BUILTIN="smiley-angry"/>
+<node CREATED="1535904143098" ID="ID_62668261" MODIFIED="1535904152669" TEXT="funktioniert, aber gewaltig aufgebl&#xe4;ht"/>
+<node CREATED="1535904153353" ID="ID_1229789568" MODIFIED="1535904403272" TEXT="ganz nah am Segfault vorbei">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und das h&#228;ngt an einem hauchd&#252;nnen Faden,
+    </p>
+    <p>
+      und ist subtil bis zum geht nicht mehr....
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wenn man das Lambda einfach per [=] schreibt, und das Feld this-&gt;predicate_ verwendet,
+    </p>
+    <p>
+      dann wird this gecaptured (und das ist effektiv per Referenz). Wenn ich dann den
+    </p>
+    <p>
+      konstruierten Funktor an this-&gt;predicate_ zuweise, haben wir eine Endlos-Rekursion.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      L&#246;sung: man mu&#223; im lokalen Frame eine Referenz auf this-&gt;predicate definieren und binden.
+    </p>
+    <p>
+      Diese wird dann per Value gecaptured, was die gew&#252;nschte Kopie bewirkt.
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1535904168943" ID="ID_1486081044" MODIFIED="1535904249188" TEXT="eine unn&#xf6;tige Kopie">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...mu&#223; den Chain-Funktor aus dem Template-Argument erzeugen,
+    </p>
+    <p>
+      und ihn dann in die per-Value-Closure des erzeugten neuen Lambda binden (=Kopie).
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Erst ab C++17 kann man Lambda-Captures pre move machen
+    </p>
+    <p>
+      (und auch daf&#252;r ist die Syntax grausam)
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+<node CREATED="1535904461720" FOLDED="true" ID="ID_1122890797" MODIFIED="1535932207865" TEXT="will ich das wirklich.....?">
+<node CREATED="1535904470670" ID="ID_1319028134" MODIFIED="1535904516890" TEXT="nat&#xfc;rlich nicht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...es soll blo&#223; einfach funktionieren!!!!!!!!!!!
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1535906366785" ID="ID_772195469" MODIFIED="1535906388442" TEXT="Komplexit&#xe4;t entsteht aus der Flexibilit&#xe4;t der Argumente">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535904517824" ID="ID_495813123" MODIFIED="1535904857801" TEXT="stattdessen Itertools-Filter verwenden?">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      keine gute Idee.
+    </p>
+    <p>
+      Dann verwenden wir im einen Funktor-Framework eine Filter-Komponente
+    </p>
+    <p>
+      aus dem anderen Framework, obwohl es direkt hier auch eine Filter-Komponente g&#228;be.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Au&#223;erdem habe ich immer noch die Hoffnung, irgendwann mal
+    </p>
+    <p>
+      die Itertools komplett durch den TreeExplorer abl&#246;sen zu k&#246;nnen
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="button_cancel"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1535906261464" ID="ID_792586244" MODIFIED="1535909947735" TEXT="Auswege">
+<icon BUILTIN="idea"/>
+<node COLOR="#338800" CREATED="1535906265911" FOLDED="true" ID="ID_949648101" MODIFIED="1535932222887" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535906327782" ID="ID_1362040513" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
+<node CREATED="1535909106704" ID="ID_1965298489" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
+<node CREATED="1535909145091" ID="ID_1036104765" MODIFIED="1535909185418">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Name: <b>mutableFilter</b>()
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1535906283948" FOLDED="true" ID="ID_1882070577" MODIFIED="1535932223855" TEXT="Chain-Filter-Bau in HIlfsfunktion">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535906394646" ID="ID_1941257576" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
+<node CREATED="1535906399621" ID="ID_1167561151" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
+<node CREATED="1535909021163" ID="ID_1877231025" MODIFIED="1535909030226" TEXT="geschachtelte generische Lambdas verwenden">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1535909041497" ID="ID_1207755293" MODIFIED="1535909052069" TEXT="AUA&#xb3;">
+<icon BUILTIN="ksmiletris"/>
+<node CREATED="1535909192572" ID="ID_1654371024" MODIFIED="1535909197055" TEXT="aber es geht...."/>
+<node COLOR="#338800" CREATED="1535909967725" ID="ID_163021784" MODIFIED="1535912743392" TEXT="im Debugger verifizieren!">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...sieht gut aus.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Folgendes habe ich gesehen
+    </p>
+    <ul>
+      <li>
+        zu Beginn zeigt das eingebettete Funktor-Objekt auf eine Position auf dem Stack
+      </li>
+      <li>
+        beim Aufrufen der andFilter()-Funktion werden diverse Funktoren kopiert,<br />wobei nacheinander die (zu erwartenden) Argumente als Quelle auftauchen<br />
+      </li>
+      <li>
+        danach hat sich der Funktor ge&#228;ndert: er zeigt nun auf eine Position auf dem Heap<br />
+      </li>
+      <li>
+        der bisherige Funktor wurde mit der Closure des zusammengesetzten Funktors kollabiert (hat gleiche Addresse)<br />
+      </li>
+      <li>
+        der Chain-Funktor hat eine Closure bekommen, die ebenfalls Heap-alloziert ist.<br />das deutet darauf hin, da&#223; das capturen per copy funktioniert hat<br />
+      </li>
+      <li>
+        Beim Aufruf steppen wir nacheinander erst in den kombinierten Funktor,<br />und von dort wie erwartet in die beiden Lambdas.
+      </li>
+      <li>
+        <br />
+      </li>
+    </ul>
+  </body>
+</html></richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1535919506060" ID="ID_1859852045" MODIFIED="1536410320485" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<arrowlink COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="105;-232;" ID="Arrow_ID_346491515" STARTARROW="None" STARTINCLINATION="-143;0;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535919540560" ID="ID_1538734134" MODIFIED="1535932049581" TEXT="geht nicht?">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1535919549942" ID="ID_790617987" MODIFIED="1535919754360" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...f&#252;r das dort hineingereichte Funktor-Objekt wird der Argument-Accessor ausgew&#228;hlt (Metaprogrammierung).
+    </p>
+    <p>
+      Er ist dann im Typ des Wrappers == _Traits::Functor codiert.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wir k&#246;nnen zwar den im Wrapper enthaltenen Funktor neu zuweisen (in gewissen Grenzen),
+    </p>
+    <p>
+      aber er wird stets den zu Beginn gew&#228;hlten Argument-Accessor nehmen.
+    </p>
+    <p>
+      Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node COLOR="#338800" CREATED="1535919835337" ID="ID_1492056572" MODIFIED="1536409243145" TEXT="Ausweg: doppelt wrappen">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367874016" ID="ID_109911994" MODIFIED="1536410392505" TEXT="Filter deaktivierbar machen">
+<linktarget COLOR="#d683c5" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" SOURCE="ID_649387933" STARTARROW="None" STARTINCLINATION="142;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node COLOR="#338800" CREATED="1535899873112" ID="ID_81164806" MODIFIED="1535932139639" TEXT="Unit-Test (replizieren)">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535913527837" ID="ID_756446305" MODIFIED="1535913542932" TEXT="anlegen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535913531701" ID="ID_1872325076" MODIFIED="1535932138102" TEXT="andere F&#xe4;lle auch covern">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536410408473" ID="ID_1812410133" MODIFIED="1536410416079" TEXT="Filter deaktivieren">
+<icon BUILTIN="pencil"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367899301" ID="ID_1128977501" MODIFIED="1536367913469" TEXT="Neuzuweisung kompatibler Filter">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536367916619" ID="ID_411753478" MODIFIED="1536367919774" TEXT="geht das?"/>
+<node CREATED="1536367921474" ID="ID_849620368" MODIFIED="1536367938773" TEXT="nur Signatur-Typ auf MutableFilter ">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1536368287265" ID="ID_29049674" MODIFIED="1536368351977">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Problem: std::function <b>in</b>&#160;FilterPredicate
+    </p>
+  </body>
+</html></richcontent>
+<node CREATED="1536368354288" ID="ID_1161186805" MODIFIED="1536368384597" TEXT="mu&#xdf; die richtige &quot;Kategorie&quot; haben">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      entweder Val -&gt; bool oder Iter -&gt; bool
+    </p>
+  </body>
+</html></richcontent>
+<icon BUILTIN="broken-line"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536409531056" TEXT="Design-Probleme">
+<icon BUILTIN="bell"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536410313468" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<linktarget COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="105;-232;" ID="Arrow_ID_346491515" SOURCE="ID_1859852045" STARTARROW="None" STARTINCLINATION="-143;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1535919549942" ID="ID_270773242" MODIFIED="1536409271272" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...f&#252;r das dort hineingereichte Funktor-Objekt wird der Argument-Accessor ausgew&#228;hlt (Metaprogrammierung).
+    </p>
+    <p>
+      Er ist dann im Typ des Wrappers == _Traits::Functor codiert.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Wir k&#246;nnen zwar den im Wrapper enthaltenen Funktor neu zuweisen (in gewissen Grenzen),
+    </p>
+    <p>
+      aber er wird stets den zu Beginn gew&#228;hlten Argument-Accessor nehmen.
+    </p>
+    <p>
+      Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node COLOR="#338800" CREATED="1535919835337" ID="ID_619686338" MODIFIED="1536409289139" TEXT="1.L&#xf6;sung: doppelt wrappen?">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1535923167297" ID="ID_1635196754" MODIFIED="1535923219590" TEXT="Basis-Filter sieht unspezifische Form des Pr&#xe4;dikates"/>
+<node CREATED="1535923237336" ID="ID_508718189" MODIFIED="1535923251434" TEXT="im Funktor steckt eingewickelt eine spezifische Form"/>
+<node CREATED="1535932069618" ID="ID_856161473" MODIFIED="1535932128786" TEXT="kein wirklicher overhead">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der Aufruf vom &#228;u&#223;eren in den inneren Wrapper ist 1:1 und sollte vom Compiler wegoptimiert werden
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node COLOR="#338800" CREATED="1535924949587" ID="ID_835090820" MODIFIED="1535932018158" TEXT="L&#xf6;sung">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535924955458" ID="ID_1924886650" MODIFIED="1535927205707" TEXT="Typ des gewrappten Funktors konstruieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924963017" ID="ID_1255665831" MODIFIED="1535927208519" TEXT="diesen schon in die Instanz der Basisklasse einflie&#xdf;en lassen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924983038" ID="ID_343931650" MODIFIED="1535927210570" TEXT="Konstruktor eigens definieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535924991781" ID="ID_1047870457" MODIFIED="1535927212273" TEXT="inline wrappen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1535925016969" ID="ID_797104795" MODIFIED="1535927239938" TEXT="der Rest m&#xfc;&#xdf;te von selber funktionieren...">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536409311669" TEXT="extrem komplexe Typen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536409316172" ID="ID_1468538186" MODIFIED="1536409340127" TEXT="Call-Traces sind nahezu unlesbar">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...ich verbrenne Stunden beim Debuggen von neuem Code
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="stop-sign"/>
+</node>
+<node CREATED="1536409470623" ID="ID_862991864" MODIFIED="1536409494631" TEXT="Ansatzpunkte">
+<node CREATED="1536409438003" ID="ID_254117479" MODIFIED="1536409449286" TEXT="erhebliche Redundanzen in den Typen"/>
+<node CREATED="1536409503106" ID="ID_377815860" MODIFIED="1536409513965" TEXT="konkrete Lambdas in der Typsignatur"/>
+</node>
+<node CREATED="1536409720285" ID="ID_610904065" MODIFIED="1536409725545" TEXT="Untersuchung">
+<node CREATED="1536409726421" ID="ID_1705785900" MODIFIED="1536409738318" TEXT="welche Typen werden wirklich ben&#xf6;tigt">
+<icon BUILTIN="help"/>
+<node CREATED="1536409761248" ID="ID_753549743" MODIFIED="1536409843345" TEXT="Quelle == Basis-Typ"/>
+<node CREATED="1536409788637" ID="ID_87247261" MODIFIED="1536409835506" TEXT="bei Transofmation: neuer value_type"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1535893137527" ID="ID_994961372" MODIFIED="1535893142488" TEXT="Verwendungen">
 <icon BUILTIN="info"/>
@@ -30837,290 +31233,9 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" FOLDED="true" ID="ID_257876647" MODIFIED="1535934249016" TEXT="Aufgabe: Filter erweiterbar machen">
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1536410348399" TEXT="Aufgabe: Filter erweiterbar machen">
+<arrowlink COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="100;100;" ID="Arrow_ID_1700598512" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1535893718194" ID="ID_872370459" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
-<node CREATED="1535893752174" ID="ID_386073545" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      sofern l&#228;ngerfristig Itertools durch TreeExplorer abgel&#246;st werden k&#246;nnte
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node COLOR="#338800" CREATED="1535903530421" ID="ID_384303362" MODIFIED="1535932193036" TEXT="Aua">
-<icon BUILTIN="smily_bad"/>
-<node CREATED="1535903536820" ID="ID_1343418651" MODIFIED="1535903541919" TEXT="das wird komplex..."/>
-<node CREATED="1535903542556" ID="ID_1721469481" MODIFIED="1535903551375" TEXT="der Filter-Layer ist hochgradig generisch"/>
-<node CREATED="1535904105560" ID="ID_1560346116" MODIFIED="1535904127224" TEXT="mu&#xdf; auch das Chain-Argument durch die Funktor-Traits schleusen"/>
-<node CREATED="1535904128524" ID="ID_1238934363" MODIFIED="1535904140074" TEXT="Code wird grausam">
-<icon BUILTIN="smiley-angry"/>
-<node CREATED="1535904143098" ID="ID_646600775" MODIFIED="1535904152669" TEXT="funktioniert, aber gewaltig aufgebl&#xe4;ht"/>
-<node CREATED="1535904153353" ID="ID_616241221" MODIFIED="1535904403272" TEXT="ganz nah am Segfault vorbei">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...und das h&#228;ngt an einem hauchd&#252;nnen Faden,
-    </p>
-    <p>
-      und ist subtil bis zum geht nicht mehr....
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      Wenn man das Lambda einfach per [=] schreibt, und das Feld this-&gt;predicate_ verwendet,
-    </p>
-    <p>
-      dann wird this gecaptured (und das ist effektiv per Referenz). Wenn ich dann den
-    </p>
-    <p>
-      konstruierten Funktor an this-&gt;predicate_ zuweise, haben wir eine Endlos-Rekursion.
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      L&#246;sung: man mu&#223; im lokalen Frame eine Referenz auf this-&gt;predicate definieren und binden.
-    </p>
-    <p>
-      Diese wird dann per Value gecaptured, was die gew&#252;nschte Kopie bewirkt.
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1535904168943" ID="ID_1936705749" MODIFIED="1535904249188" TEXT="eine unn&#xf6;tige Kopie">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...mu&#223; den Chain-Funktor aus dem Template-Argument erzeugen,
-    </p>
-    <p>
-      und ihn dann in die per-Value-Closure des erzeugten neuen Lambda binden (=Kopie).
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      Erst ab C++17 kann man Lambda-Captures pre move machen
-    </p>
-    <p>
-      (und auch daf&#252;r ist die Syntax grausam)
-    </p>
-  </body>
-</html></richcontent>
-</node>
-</node>
-<node CREATED="1535904461720" FOLDED="true" ID="ID_317840110" MODIFIED="1535932207865" TEXT="will ich das wirklich.....?">
-<node CREATED="1535904470670" ID="ID_160594644" MODIFIED="1535904516890" TEXT="nat&#xfc;rlich nicht">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...es soll blo&#223; einfach funktionieren!!!!!!!!!!!
-    </p>
-  </body>
-</html></richcontent>
-<icon BUILTIN="ksmiletris"/>
-</node>
-<node CREATED="1535906366785" ID="ID_1488862884" MODIFIED="1535906388442" TEXT="Komplexit&#xe4;t entsteht aus der Flexibilit&#xe4;t der Argumente">
-<icon BUILTIN="idea"/>
-</node>
-<node CREATED="1535904517824" ID="ID_305725479" MODIFIED="1535904857801" TEXT="stattdessen Itertools-Filter verwenden?">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      keine gute Idee.
-    </p>
-    <p>
-      Dann verwenden wir im einen Funktor-Framework eine Filter-Komponente
-    </p>
-    <p>
-      aus dem anderen Framework, obwohl es direkt hier auch eine Filter-Komponente g&#228;be.
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      Au&#223;erdem habe ich immer noch die Hoffnung, irgendwann mal
-    </p>
-    <p>
-      die Itertools komplett durch den TreeExplorer abl&#246;sen zu k&#246;nnen
-    </p>
-  </body>
-</html></richcontent>
-<icon BUILTIN="button_cancel"/>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535909947735" TEXT="Auswege">
-<icon BUILTIN="idea"/>
-<node COLOR="#338800" CREATED="1535906265911" FOLDED="true" ID="ID_442265155" MODIFIED="1535932222887" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
-<node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
-<node CREATED="1535909145091" ID="ID_23855152" MODIFIED="1535909185418">
-<richcontent TYPE="NODE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      Name: <b>mutableFilter</b>()
-    </p>
-  </body>
-</html></richcontent>
-<icon BUILTIN="idea"/>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1535906283948" FOLDED="true" ID="ID_367978731" MODIFIED="1535932223855" TEXT="Chain-Filter-Bau in HIlfsfunktion">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
-<node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
-<node CREATED="1535909021163" ID="ID_1776922208" MODIFIED="1535909030226" TEXT="geschachtelte generische Lambdas verwenden">
-<icon BUILTIN="idea"/>
-</node>
-<node CREATED="1535909041497" ID="ID_911444458" MODIFIED="1535909052069" TEXT="AUA&#xb3;">
-<icon BUILTIN="ksmiletris"/>
-<node CREATED="1535909192572" ID="ID_1938820560" MODIFIED="1535909197055" TEXT="aber es geht...."/>
-<node COLOR="#338800" CREATED="1535909967725" ID="ID_745154448" MODIFIED="1535912743392" TEXT="im Debugger verifizieren!">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...sieht gut aus.
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      Folgendes habe ich gesehen
-    </p>
-    <ul>
-      <li>
-        zu Beginn zeigt das eingebettete Funktor-Objekt auf eine Position auf dem Stack
-      </li>
-      <li>
-        beim Aufrufen der andFilter()-Funktion werden diverse Funktoren kopiert,<br />wobei nacheinander die (zu erwartenden) Argumente als Quelle auftauchen<br />
-      </li>
-      <li>
-        danach hat sich der Funktor ge&#228;ndert: er zeigt nun auf eine Position auf dem Heap<br />
-      </li>
-      <li>
-        der bisherige Funktor wurde mit der Closure des zusammengesetzten Funktors kollabiert (hat gleiche Addresse)<br />
-      </li>
-      <li>
-        der Chain-Funktor hat eine Closure bekommen, die ebenfalls Heap-alloziert ist.<br />das deutet darauf hin, da&#223; das capturen per copy funktioniert hat<br />
-      </li>
-      <li>
-        Beim Aufruf steppen wir nacheinander erst in den kombinierten Funktor,<br />und von dort wie erwartet in die beiden Lambdas.
-      </li>
-      <li>
-        <br />
-      </li>
-    </ul>
-  </body>
-</html></richcontent>
-<icon BUILTIN="button_ok"/>
-</node>
-</node>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1535919506060" FOLDED="true" ID="ID_308901003" MODIFIED="1535932218407" TEXT="heterogene Pr&#xe4;dikat-Typen">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1535919540560" ID="ID_544134703" MODIFIED="1535932049581" TEXT="geht nicht?">
-<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<icon BUILTIN="messagebox_warning"/>
-</node>
-<node CREATED="1535919549942" ID="ID_809087906" MODIFIED="1535919754360" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...f&#252;r das dort hineingereichte Funktor-Objekt wird der Argument-Accessor ausgew&#228;hlt (Metaprogrammierung).
-    </p>
-    <p>
-      Er ist dann im Typ des Wrappers == _Traits::Functor codiert.
-    </p>
-    <p>
-      
-    </p>
-    <p>
-      Wir k&#246;nnen zwar den im Wrapper enthaltenen Funktor neu zuweisen (in gewissen Grenzen),
-    </p>
-    <p>
-      aber er wird stets den zu Beginn gew&#228;hlten Argument-Accessor nehmen.
-    </p>
-    <p>
-      Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node COLOR="#338800" CREATED="1535919835337" ID="ID_984434298" MODIFIED="1535932021329" TEXT="Ausweg: doppelt wrappen?">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1535923167297" ID="ID_1611885187" MODIFIED="1535923219590" TEXT="Basis-Filter sieht unspezifische Form des Pr&#xe4;dikates"/>
-<node CREATED="1535923237336" ID="ID_873685254" MODIFIED="1535923251434" TEXT="im Funktor steckt eingewickelt eine spezifische Form"/>
-<node CREATED="1535932069618" ID="ID_937611933" MODIFIED="1535932128786" TEXT="kein wirklicher overhead">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      der Aufruf vom &#228;u&#223;eren in den inneren Wrapper ist 1:1 und sollte vom Compiler wegoptimiert werden
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node COLOR="#338800" CREATED="1535924949587" ID="ID_283543674" MODIFIED="1535932018158" TEXT="L&#xf6;sung">
-<icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535924955458" ID="ID_257130301" MODIFIED="1535927205707" TEXT="Typ des gewrappten Funktors konstruieren">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1535924963017" ID="ID_1923686219" MODIFIED="1535927208519" TEXT="diesen schon in die Instanz der Basisklasse einflie&#xdf;en lassen">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1535924983038" ID="ID_966924861" MODIFIED="1535927210570" TEXT="Konstruktor eigens definieren">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1535924991781" ID="ID_28842573" MODIFIED="1535927212273" TEXT="inline wrappen">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1535925016969" ID="ID_214947623" MODIFIED="1535927239938" TEXT="der Rest m&#xfc;&#xdf;te von selber funktionieren...">
-<icon BUILTIN="idea"/>
-</node>
-</node>
-</node>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1535899873112" ID="ID_1460874987" MODIFIED="1535932139639" TEXT="Unit-Test (replizieren)">
-<icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535913527837" ID="ID_1506533000" MODIFIED="1535913542932" TEXT="anlegen">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1535913531701" ID="ID_1093929821" MODIFIED="1535932138102" TEXT="andere F&#xe4;lle auch covern">
-<icon BUILTIN="button_ok"/>
-</node>
-</node>
 </node>
 <node COLOR="#338800" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535937992260" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
 <icon BUILTIN="button_ok"/>
@@ -31162,6 +31277,31 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
 <node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536368121224" ID="ID_684768731" MODIFIED="1536368139195">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      die Search-Engine bl&#228;ht die Debug-Infos <b>gewaltig</b>&#160;auf
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1536368144661" ID="ID_184622907" MODIFIED="1536368158636" TEXT="BusTerm_test = 12 MB">
+<icon BUILTIN="smiley-angry"/>
+</node>
+<node CREATED="1536368166242" ID="ID_280400966" MODIFIED="1536368177458" TEXT="EventLog_test = 6 MB">
+<icon BUILTIN="smiley-angry"/>
+</node>
+</node>
+<node CREATED="1536368188063" ID="ID_1725693994" MODIFIED="1536368197862" TEXT="kein Wunder bei den Typen...">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1535893799799" ID="ID_706866636" MODIFIED="1535938019075" TEXT="Auswertungs-Stack">
@@ -31525,7 +31665,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536326576841" TEXT="treeExplorer-Konfiguration">
 <arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353107155" HGAP="27" ID="ID_1163131751" MODIFIED="1536353202260" TEXT="Problem: Basis-Layer" VSHIFT="23">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353107155" HGAP="33" ID="ID_1163131751" MODIFIED="1536361617044" TEXT="Problem: Basis-Layer" VSHIFT="37">
+<arrowlink COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" STARTARROW="None" STARTINCLINATION="30;44;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1536353117930" ID="ID_625995057" MODIFIED="1536353132265" TEXT="hinzugef&#xfc;gt f&#xfc;r &quot;leeren&quot; Zustand">
 <icon BUILTIN="info"/>
@@ -31533,6 +31674,9 @@
 <node CREATED="1536353133264" ID="ID_597888311" MODIFIED="1536353144626" TEXT="Backtracking in leeren Zustand">
 <icon BUILTIN="messagebox_warning"/>
 </node>
+<node CREATED="1536357642662" ID="ID_77507334" MODIFIED="1536357654371" TEXT="Basis-Layer wird eigentlich nie mehr besucht">
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353280436" ID="ID_967254721" MODIFIED="1536353333302" TEXT="Problem: clearFilter()">
 <icon BUILTIN="flag-yellow"/>
@@ -31545,7 +31689,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353335500" ID="ID_698525366" MODIFIED="1536353392694" TEXT="Problem ist partielle Expansion">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353335500" ID="ID_698525366" MODIFIED="1536358327376" TEXT="mu&#xdf; Stack der partiellen Auswertungen verwerfen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31560,6 +31704,7 @@
   </body>
 </html>
 </richcontent>
+<arrowlink COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" STARTARROW="None" STARTINCLINATION="106;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
@@ -31577,6 +31722,87 @@
 </node>
 </node>
 </node>
+<node CREATED="1536357666667" ID="ID_886527146" MODIFIED="1536357671758" TEXT="Design-Kritik">
+<node CREATED="1536357672802" ID="ID_2301559" MODIFIED="1536357696186" TEXT="aktuelles Design ist minimalistisch aber nicht elegant">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1536357853649" ID="ID_1868098250" MODIFIED="1536357864980" TEXT="API geradliniger als die interne Struktur">
+<node CREATED="1536357700806" ID="ID_484166025" MODIFIED="1536357804847" TEXT="der Basis-Layer ist aufgrund des API vorhanden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn
+    </p>
+    <ul>
+      <li>
+        es ist praktisch, zun&#228;chst &quot;leer&quot; zu konstruieren
+      </li>
+      <li>
+        es ist verst&#228;ndlicher, wenn alle Bedingungen symmetrisch angegeben werden
+      </li>
+      <li>
+        es ist nat&#252;rlich, da&#223; ein &quot;leerer&quot; Filter alles durchl&#228;&#223;t
+      </li>
+    </ul>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1536357809367" ID="ID_118025251" MODIFIED="1536357830652" TEXT="die clearFilter()-Funktion folgt derselben Logik">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Filter leer == alles durchlassen
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1536358257081" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536358349759" TEXT="den Basis-Layer eliminieren">
+<linktarget COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" SOURCE="ID_1163131751" STARTARROW="None" STARTINCLINATION="30;44;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357900635" ID="ID_646733499" MODIFIED="1536358247780" TEXT="brauche einen &quot;leer&quot;-Status im Filter">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536367745114" ID="ID_945289619" MODIFIED="1536367753030" TEXT="explizit als bool-Flag">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367754089" ID="ID_649387933" MODIFIED="1536410400971" TEXT="im Filter-Funktor verstecken">
+<arrowlink COLOR="#d683c5" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" STARTARROW="None" STARTINCLINATION="142;0;"/>
+<icon BUILTIN="pencil"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357917385" ID="ID_1615410357" MODIFIED="1536358250507" TEXT="wenn leer, dann direkt den Basis-Layer konfigurieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357952068" ID="ID_876149668" MODIFIED="1536358251475" TEXT="nur an die Kette anf&#xfc;gen, wenn nicht leer">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357967826" ID="ID_634133289" MODIFIED="1536358245365" TEXT="clearFilter()">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536357973769" ID="ID_33678789" MODIFIED="1536358316984" TEXT="brauche Unterst&#xfc;tzung vom Expander">
+<linktarget COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" SOURCE="ID_698525366" STARTARROW="None" STARTINCLINATION="106;0;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357986087" ID="ID_1097583555" MODIFIED="1536358230631" TEXT="rootCurrent()">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536358193211" ID="ID_601406114" MODIFIED="1536358229327" TEXT="hebt aktuelle Sequenz auf Root-Level">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536358204137" ID="ID_1724606451" MODIFIED="1536358228591" TEXT="verwirft den sonstigen Stack komplett">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">
 <icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536326442522" TEXT="macht normalerweise TreeExplorer">

From 5d4f1015aa0fca66f8d8a0f398aabe9cfd380ad2 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 8 Sep 2018 23:32:32 +0200
Subject: [PATCH 071/178] TreeExplorer: consider refactoring of the functor
 adaptatiion mechanism

...and in preparation start with some renamings...


The overall goal is to simplify the type signatures and thereby
to make the generates pipelines more assignment compatible.

The debugging experience form the last days indicated that the
current design is not maintainable on the long run. Both the
template instantiation chains and the call stacks are way to
complicated and hard to understand and diagnose
---
 src/lib/iter-chain-search.hpp  |   2 +-
 src/lib/iter-tree-explorer.hpp |  26 +++----
 wiki/thinkPad.ichthyo.mm       | 131 +++++++++++++++++++++++++++++++++
 3 files changed, 145 insertions(+), 14 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 30d0779d5..4065cccd2 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -95,7 +95,7 @@ namespace iter {
         using Filter = decltype( buildSearchFilter(std::declval<SRC>()).asIterator() );
         
         using StepFunctor = std::function<Filter(Filter const&)>;
-        using StepWrapper = typename iter_explorer::_BoundFunctor<Filter(Filter const&), Filter const&>::Functor;
+        using StepWrapper = typename iter_explorer::_FunTraits<Filter(Filter const&), Filter const&>::Functor;
                                                                                       // ^^^^^^^^^^^^^ used as argument on generic lambda 
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
         
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index def63b5a2..46debeb6d 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -473,7 +473,7 @@ namespace lib {
      * @tparam SRC the source iterator type to apply when attempting to use a generic lambda as functor
      */
     template<class FUN, typename SRC>
-    struct _BoundFunctor
+    struct _FunTraits
       {
         /** handle all regular "function-like" entities */
         template<typename F, typename SEL =void>
@@ -500,7 +500,7 @@ namespace lib {
         
         /** adapt to a functor, which accesses the source iterator or embedded "state core" */
         template<class ARG, class SEL =void>
-        struct ArgAccessor
+        struct ArgAdapter
           {
             using FunArgType = remove_reference_t<Arg>;
             static_assert (std::is_convertible<ARG, FunArgType>::value,
@@ -511,7 +511,7 @@ namespace lib {
         
         /** adapt to a functor, which accepts the value type of the source sequence ("monadic" usage pattern) */
         template<class IT>
-        struct ArgAccessor<IT,   enable_if<__and_<is_convertible<typename IT::value_type, Arg>
+        struct ArgAdapter<IT,   enable_if<__and_<is_convertible<typename IT::value_type, Arg>
                                                  ,__not_<is_convertible<IT, Arg>>>>>        // need to exclude the latter, since IterableDecorator
           {                                                                                //  often seems to accept IT::value_type (while in fact it doesn't)
             static auto build() { return [](auto& iter) { return *iter; }; }
@@ -519,7 +519,7 @@ namespace lib {
         
         /** adapt to a functor collaborating with an IterSource based iterator pipeline */
         template<class IT>
-        struct ArgAccessor<IT,   enable_if<__and_< is_base_of<IterSource<typename IT::value_type>, typename IT::Source>
+        struct ArgAdapter<IT,   enable_if<__and_< is_base_of<IterSource<typename IT::value_type>, typename IT::Source>
                                                  , is_base_of<IterSource<typename IT::value_type>, remove_reference_t<Arg>>
                                                  > >>
           {
@@ -538,7 +538,7 @@ namespace lib {
             Res
             operator() (ARG& arg)  const
               {
-                auto accessArg = ArgAccessor<ARG>::build();
+                auto accessArg = ArgAdapter<ARG>::build();
                 
                 return boundFunction (accessArg (arg));
               }
@@ -593,7 +593,7 @@ namespace lib {
      * the source iterator wrapped by this decorator.
      * @remark since we allow a lot of leeway regarding the actual form and definition of the
      *         _expansion functor_, there is a lot of minute technical details, mostly confined
-     *         within the _BoundFunctor traits.
+     *         within the _FunTraits traits.
      * @tparam SRC the wrapped source iterator, typically a TreeExplorer or nested decorator.
      * @tparam FUN the concrete type of the functor passed. Will be dissected to find the signature
      */
@@ -602,7 +602,7 @@ namespace lib {
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _BoundFunctor<FUN,SRC>;
+        using _Traits = _FunTraits<FUN,SRC>;
         using ExpandFunctor = typename _Traits::Functor;
         
         using ResIter = typename _DecoratorTraits<typename _Traits::Res>::SrcIter;
@@ -782,7 +782,7 @@ namespace lib {
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _BoundFunctor<FUN,SRC>;
+        using _Traits = _FunTraits<FUN,SRC>;
         using Res = typename _Traits::Res;
         
         using TransformFunctor = typename _Traits::Functor;
@@ -869,7 +869,7 @@ namespace lib {
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _BoundFunctor<FUN,SRC>;
+        using _Traits = _FunTraits<FUN,SRC>;
         using Res = typename _Traits::Res;
         static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
         
@@ -967,7 +967,7 @@ namespace lib {
      *       be mixed and combined. To allow for this flexibility, we need to drive the _base class_
      *       with the most general form of a predicate functor, corresponding to `bool<SRC&>`.
      *       Hereby we exploit the fact that the _wrapped filter,_ i.e. the Functor type constructed
-     *       in the _BoundFunctor traits, boils down to that most generic form, adapting the arguments
+     *       in the _FunTraits traits, boils down to that most generic form, adapting the arguments
      *       automatically. Thus the initial functor, the one passed to the ctor of this class, is
      *       effectively wrapped twice, so it can be combined later on with any other form and
      *       shape of functor. And since everything is inline, the compiler will remove any
@@ -975,9 +975,9 @@ namespace lib {
      */
     template<class SRC, class FUN>
     class MutableFilter
-      : public Filter<SRC, typename _BoundFunctor<FUN,SRC>::Functor>
+      : public Filter<SRC, typename _FunTraits<FUN,SRC>::Functor>
       {
-        using _Traits = _BoundFunctor<FUN,SRC>;
+        using _Traits = _FunTraits<FUN,SRC>;
         using FilterPredicate = typename _Traits::Functor;
         using _Base = Filter<SRC,FilterPredicate>;
         
@@ -1119,7 +1119,7 @@ namespace lib {
         void
         remouldFilter (COND&& additionalClause, COMB buildCombinedClause)
           {
-            using _ChainTraits = _BoundFunctor<COND,SRC>;
+            using _ChainTraits = _FunTraits<COND,SRC>;
             using Res = typename _ChainTraits::Res;
             static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
             
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index fc46297ea..d66335796 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -25129,6 +25129,56 @@
 <arrowlink COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" STARTARROW="None" STARTINCLINATION="1631;0;"/>
 <icon BUILTIN="pencil"/>
 </node>
+<node CREATED="1536441983485" ID="ID_330124350" MODIFIED="1536442038343" TEXT="Warnung: anonymous namespace">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...ist mir nicht v&#246;llig klar, warum das bei einigen Includes auftritt,
+    </p>
+    <p>
+      und bei anderen nicht. Beispiel
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      In file included from src/lib/diff/test-mutation-target.hpp:55:0,
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;from tests/library/diff/diff-complex-application-test.cpp:35:
+    </p>
+    <p>
+      src/lib/test/event-log.hpp:96:9: warning: 'lib::test::EventMatch' has a field 'lib::test::EventMatch::solution_' whose type uses the anonymous namespace [-Wsubobject-linkage]
+    </p>
+    <p>
+      &#160;&#160;&#160;class EventMatch
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;^~~~~~~~~~
+    </p>
+    <p>
+      In file included from src/lib/diff/test-mutation-target.hpp:55:0,
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;from tests/library/diff/tree-mutator-binding-test.cpp:32:
+    </p>
+    <p>
+      src/lib/test/event-log.hpp:96:9: warning: 'lib::test::EventMatch' has a field 'lib::test::EventMatch::solution_' whose type uses the anonymous namespace [-Wsubobject-linkage]
+    </p>
+    <p>
+      &#160;&#160;&#160;class EventMatch
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;^~~~~~~~~~
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 </node>
@@ -31176,6 +31226,87 @@
 <node CREATED="1536409761248" ID="ID_753549743" MODIFIED="1536409843345" TEXT="Quelle == Basis-Typ"/>
 <node CREATED="1536409788637" ID="ID_87247261" MODIFIED="1536409835506" TEXT="bei Transofmation: neuer value_type"/>
 </node>
+<node CREATED="1536420551954" ID="ID_1265946119" MODIFIED="1536420561095" TEXT="Rolle der Traits">
+<node CREATED="1536420562706" ID="ID_1510273577" MODIFIED="1536420573085" TEXT="Baumuster erkennen">
+<node CREATED="1536420576968" ID="ID_1438017036" MODIFIED="1536420618407" TEXT="monadisch: res(val)"/>
+<node CREATED="1536420581231" ID="ID_790634219" MODIFIED="1536420608360" TEXT="imperativ: res(SRC&amp;)"/>
+</node>
+<node CREATED="1536420632457" ID="ID_1027876524" MODIFIED="1536420638164" TEXT="Signatur abnehmen"/>
+<node CREATED="1536420639016" ID="ID_221776251" MODIFIED="1536420654441" TEXT="Funktor(Holder)-Typ konstruieren"/>
+<node CREATED="1536420659869" ID="ID_176968684" MODIFIED="1536420669838" TEXT="Resultat">
+<icon BUILTIN="idea"/>
+<node CREATED="1536420671212" ID="ID_1077375672" MODIFIED="1536420678038" TEXT="Funktor(Holder)-Typ"/>
+<node CREATED="1536420678842" ID="ID_1524886712" MODIFIED="1536420681830" TEXT="Ergebnis-Typ"/>
+</node>
+</node>
+<node CREATED="1536420803778" ID="ID_1315131204" MODIFIED="1536420809629" TEXT="Funktions-Signatur verbergen">
+<node CREATED="1536420811265" ID="ID_1167994865" MODIFIED="1536420823683" TEXT="reduzieren auf res(SRC)"/>
+<node CREATED="1536420824983" ID="ID_784540518" MODIFIED="1536420836185" TEXT="konkrete Funktion in Adapter setzen"/>
+<node CREATED="1536420932944" ID="ID_512498364" MODIFIED="1536420940219" TEXT="ArgAccessor beim Aufruf">
+<node CREATED="1536420941519" ID="ID_1927165900" MODIFIED="1536420945112" TEXT="kann wegfallen">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1536420945998" ID="ID_582317324" MODIFIED="1536420989876" TEXT="trotzdem notwendig">
+<icon BUILTIN="help"/>
+<node CREATED="1536420950054" ID="ID_1462776992" MODIFIED="1536420952593" TEXT="wegen Expander">
+<node CREATED="1536421001935" ID="ID_1416192275" MODIFIED="1536421016769" TEXT="unterschiedliche Iter-Typen m&#xf6;glich"/>
+<node CREATED="1536421023732" ID="ID_293881968" MODIFIED="1536421035374" TEXT="in beiden Baumuster-F&#xe4;llen"/>
+</node>
+<node CREATED="1536421204268" ID="ID_1225988621" MODIFIED="1536421235479">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Konsequenz: brauche <b>Template</b>&#160;Funktions-Operator
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1536441211468" ID="ID_435661366" MODIFIED="1536441216296" TEXT="L&#xf6;sungs-Idee">
+<node CREATED="1536441217427" ID="ID_1508660342" MODIFIED="1536441270931" TEXT="die Signatur im Builder konstruieren. Traits nur noch auf Signatur abst&#xfc;tzen">
+<icon BUILTIN="full-1"/>
+</node>
+<node CREATED="1536441337478" ID="ID_1343620192" MODIFIED="1536441363753" TEXT="Traits bieten nun einen Funktor-Konstruktur">
+<icon BUILTIN="full-2"/>
+<node CREATED="1536441426912" ID="ID_1985454424" MODIFIED="1536441520374">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der Funktor f&#252;r den Expander wird <i>explizit als Sonderfall</i>&#160; aufgefa&#223;t
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das <i>eigentliche Problem </i>mit der bestehenden L&#246;sung ist,
+    </p>
+    <p>
+      da&#223; ich ausgerechnet mit diesem Sonderfall angefangen habe.
+    </p>
+    <p>
+      Daher ist jetzt das gesamte Design &quot;anders herum&quot;
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536441367354" ID="ID_1778093460" MODIFIED="1536441424596" TEXT="welcher eine gegebene Funktion in eine vorgegebene function&lt;SIG&gt; einpasst"/>
+</node>
 </node>
 </node>
 </node>

From a175306f50a7189a38c79acdbd3f13270591955d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 01:11:58 +0200
Subject: [PATCH 072/178] TreeExplorer: allow to drive the function traits
 solely by the function signature

...which still needs to be the *concrete* signature of the funcition to pass,
but we'll attempt to loosen that requirement in the next refactoring steps
---
 src/lib/iter-tree-explorer.hpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 46debeb6d..7270a1683 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -469,10 +469,13 @@ namespace lib {
      *   keep the argument-accepting front-end still generic (templated `operator()`). This
      *   special adapter supports the case when the _expansion functor_ yields a child sequence
      *   type different but compatible to the original source sequence embedded in TreeExplorer.
-     * @tparam FUN something _"function-like"_ passed as functor to be bound
-     * @tparam SRC the source iterator type to apply when attempting to use a generic lambda as functor
+     * @tparam FUN either the signature, or something _"function-like"_ passed as functor to be bound
+     * @tparam SRC (optional) but need to specify the source iterator type to apply when passing
+     *             a generic lambda or template as FUN. Such a generic functor will be _instantiated_
+     *             passing the type `SRC&` as argument. This instantiation may fail (and abort compilation),
+     *             but when it succeeds, we can infer the result type `Res` from the generic lambda
      */
-    template<class FUN, typename SRC>
+    template<class SIG, typename SRC =void>
     struct _FunTraits
       {
         /** handle all regular "function-like" entities */
@@ -492,7 +495,7 @@ namespace lib {
           };
         
         
-        using Sig = typename FunDetector<FUN>::Sig;
+        using Sig = typename FunDetector<SIG>::Sig;
         using Arg = typename _Fun<Sig>::Args::List::Head;  // assuming function with a single argument
         using Res = typename _Fun<Sig>::Ret;
         

From a91025bfe043edf95464aafc1d7433e1d00f89be Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 02:09:38 +0200
Subject: [PATCH 073/178] TreeExplorer: perpare a builder for a suitably
 adapted, wrapped functor.

This does not touch the existing code-path,
but the idea is to use the _FunTraits directly from within the
constructor of the respective processing layer, and to confine the
knowledge of the actual FUN functor type to within that limited context.
Only the generic signature of the resulting std::function need to be
encoded into the type of the processing component, which should help
to simplify the type signatures
---
 src/lib/iter-tree-explorer.hpp | 17 +++++++++--
 wiki/thinkPad.ichthyo.mm       | 53 +++++++++++++++++++++++++++++++++-
 2 files changed, 67 insertions(+), 3 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 7270a1683..2bf94e392 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -475,7 +475,7 @@ namespace lib {
      *             passing the type `SRC&` as argument. This instantiation may fail (and abort compilation),
      *             but when it succeeds, we can infer the result type `Res` from the generic lambda
      */
-    template<class SIG, typename SRC =void>
+    template<class FUN, typename SRC =void>
     struct _FunTraits
       {
         /** handle all regular "function-like" entities */
@@ -495,7 +495,7 @@ namespace lib {
           };
         
         
-        using Sig = typename FunDetector<SIG>::Sig;
+        using Sig = typename FunDetector<FUN>::Sig;
         using Arg = typename _Fun<Sig>::Args::List::Head;  // assuming function with a single argument
         using Res = typename _Fun<Sig>::Ret;
         
@@ -510,6 +510,8 @@ namespace lib {
                            "the bound functor must accept the source iterator or state core as parameter");
             
             static auto build() { return [](ARG& arg) -> ARG& { return arg; }; }
+            
+            static auto wrap (FUN&& rawFunctor) { return forward<FUN> (rawFunctor); }
           };
         
         /** adapt to a functor, which accepts the value type of the source sequence ("monadic" usage pattern) */
@@ -518,6 +520,8 @@ namespace lib {
                                                  ,__not_<is_convertible<IT, Arg>>>>>        // need to exclude the latter, since IterableDecorator
           {                                                                                //  often seems to accept IT::value_type (while in fact it doesn't)
             static auto build() { return [](auto& iter) { return *iter; }; }
+            
+            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& srcIter) { return rawFun(*srcIter); }; }
           };
         
         /** adapt to a functor collaborating with an IterSource based iterator pipeline */
@@ -529,6 +533,8 @@ namespace lib {
             using Source = typename IT::Source;
             
             static auto build() { return [](auto& iter) -> Source& { return iter.source(); }; }
+            
+            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& iter) { return rawFun(*iter.source()); }; }
           };
         
         
@@ -546,6 +552,13 @@ namespace lib {
                 return boundFunction (accessArg (arg));
               }
           };
+        
+        template<typename IT>
+        static auto
+        adaptFunctor (FUN&& rawFunctor)
+          {
+            return function<Res(IT&)> {ArgAdapter<IT>::wrap (forward<FUN> (rawFunctor))};
+          }
       };
     
     
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d66335796..a892bba72 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31269,7 +31269,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1536441211468" ID="ID_435661366" MODIFIED="1536441216296" TEXT="L&#xf6;sungs-Idee">
+<node CREATED="1536441211468" HGAP="84" ID="ID_435661366" MODIFIED="1536451220949" TEXT="L&#xf6;sungs-Idee" VSHIFT="15">
 <node CREATED="1536441217427" ID="ID_1508660342" MODIFIED="1536441270931" TEXT="die Signatur im Builder konstruieren. Traits nur noch auf Signatur abst&#xfc;tzen">
 <icon BUILTIN="full-1"/>
 </node>
@@ -31308,6 +31308,57 @@
 <node CREATED="1536441367354" ID="ID_1778093460" MODIFIED="1536441424596" TEXT="welcher eine gegebene Funktion in eine vorgegebene function&lt;SIG&gt; einpasst"/>
 </node>
 </node>
+<node CREATED="1536451222025" HGAP="9" ID="ID_389572303" MODIFIED="1536451229468" TEXT="Umbau" VSHIFT="5">
+<node COLOR="#338800" CREATED="1536451240308" ID="ID_241157222" MODIFIED="1536451273762" TEXT="den SRC-Parameter optional machen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536451256034" ID="ID_645889218" MODIFIED="1536451285944" TEXT="FunTraits sind idempotent">
+<icon BUILTIN="button_ok"/>
+<icon BUILTIN="ksmiletris"/>
+<node CREATED="1536451303308" ID="ID_1343290323" MODIFIED="1536451313142" TEXT="man kann sie mit dem Funktor aufrufen -&gt; Sig"/>
+<node CREATED="1536451313778" ID="ID_439029617" MODIFIED="1536451336475" TEXT="man kann sie mit Sig aufrufen -&gt; Arg, Ret"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536451345998" ID="ID_1853688774" MODIFIED="1536451360667" TEXT="Funktor-Konstruktor-Funktion">
+<icon BUILTIN="pencil"/>
+<node CREATED="1536451365731" ID="ID_552359289" MODIFIED="1536451394878" TEXT="f&#xfc;r Aufruf aus dem Konstruktor-Kontext">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...wo der volle Typ des Funktors FUN bekannt ist
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536451415725" ID="ID_1712691133" MODIFIED="1536451426247" TEXT="Bekommt SRC-Iterator als Template-Param"/>
+<node CREATED="1536451430508" ID="ID_224998497" MODIFIED="1536451471881" TEXT="wirft eine std::function&lt;Ret(SRC&amp;)&gt; ab"/>
+<node CREATED="1536451473013" ID="ID_1179844665" MODIFIED="1536451543886" TEXT="in die der eigentliche Funktor geeignet adaptiert ist">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und in dem besonders wichtigen Fall,
+    </p>
+    <p>
+      in dem der Funktor direkt den SRC-Iterator akzeptiert,
+    </p>
+    <p>
+      wird er ohne Weiteres durchgereicht.
+    </p>
+    <p>
+      In dem Fall dann <b>keine</b>&#160;doppelte Verpackung mehr!
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
 </node>
 </node>
 </node>

From 1e657acbffae269cd22ac2f3a9fe45fb824639bb Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 03:23:17 +0200
Subject: [PATCH 074/178] TreeExplorer: refactor Transformer to employ the
 improved wrapping style

...step by step switch over to the new usage pattern.
Transformer should be the blueprint for all other functor usages.


The reworked solutions behaves as expected;
we see two functor invocations; the outer functor, which does
the argument adaptation, is allocated in heap memory
---
 src/lib/iter-tree-explorer.hpp            | 21 ++++++++-------
 src/lib/wrapper.hpp                       |  2 ++
 tests/library/iter-tree-explorer-test.cpp |  1 +
 wiki/thinkPad.ichthyo.mm                  | 33 ++++++++++++++++++++---
 4 files changed, 43 insertions(+), 14 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 2bf94e392..b3a18bbe0 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -793,32 +793,31 @@ namespace lib {
      * is adapted in a similar way as the "expand functor", so to detect and convert the
      * expected input on invocation.
      */
-    template<class SRC, class FUN>
+    template<class SRC, class RES>
     class Transformer
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _FunTraits<FUN,SRC>;
-        using Res = typename _Traits::Res;
         
-        using TransformFunctor = typename _Traits::Functor;
-        using TransformedItem = wrapper::ItemWrapper<Res>;
+        using TransformFunctor = function<RES(SRC&)>;
+        using TransformedItem = wrapper::ItemWrapper<RES>;
         
         TransformFunctor trafo_;
         TransformedItem treated_;
         
       public:
-        using value_type = typename meta::TypeBinding<Res>::value_type;
-        using reference  = typename meta::TypeBinding<Res>::reference;
-        using pointer    = typename meta::TypeBinding<Res>::pointer;
+        using value_type = typename meta::TypeBinding<RES>::value_type;
+        using reference  = typename meta::TypeBinding<RES>::reference;
+        using pointer    = typename meta::TypeBinding<RES>::pointer;
         
         
         Transformer() =default;
         // inherited default copy operations
         
+        template<typename FUN>
         Transformer (SRC&& dataSrc, FUN&& transformFunctor)
           : SRC{move (dataSrc)}
-          , trafo_{forward<FUN> (transformFunctor)}
+          , trafo_{_FunTraits<FUN,SRC>::template adaptFunctor<SRC> (forward<FUN> (transformFunctor))}
           { }
         
         
@@ -1437,7 +1436,9 @@ namespace lib {
       auto
       transform (FUN&& transformFunctor)
         {
-          using ResCore = iter_explorer::Transformer<SRC, FUN>;
+          using Product = typename iter_explorer::_FunTraits<FUN,SRC>::Res;
+          
+          using ResCore = iter_explorer::Transformer<SRC, Product>;
           using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
           
           return TreeExplorer<ResIter> (ResCore {move(*this), forward<FUN>(transformFunctor)});
diff --git a/src/lib/wrapper.hpp b/src/lib/wrapper.hpp
index aa66db2fe..363274fb6 100644
--- a/src/lib/wrapper.hpp
+++ b/src/lib/wrapper.hpp
@@ -185,11 +185,13 @@ namespace wrapper {
       
       explicit
       ItemWrapper(TY const& o)
+        : created_(false)
         {
           build (o);
         }
       explicit
       ItemWrapper(TY && ro)
+        : created_(false)
         {
           build (std::move(ro));
         }
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 588be76c4..914349475 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -517,6 +517,7 @@ namespace test{
                       .transform(multiply)
                       ;
           
+          CHECK (14 == *ii);
           CHECK (14 == *ii);
           ++ii;
           CHECK (12 == *ii);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index a892bba72..bab370530 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31200,8 +31200,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536409311669" TEXT="extrem komplexe Typen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536455982782" TEXT="extrem komplexe Typen">
+<icon BUILTIN="pencil"/>
 <node CREATED="1536409316172" ID="ID_1468538186" MODIFIED="1536409340127" TEXT="Call-Traces sind nahezu unlesbar">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31318,8 +31318,8 @@
 <node CREATED="1536451303308" ID="ID_1343290323" MODIFIED="1536451313142" TEXT="man kann sie mit dem Funktor aufrufen -&gt; Sig"/>
 <node CREATED="1536451313778" ID="ID_439029617" MODIFIED="1536451336475" TEXT="man kann sie mit Sig aufrufen -&gt; Arg, Ret"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536451345998" ID="ID_1853688774" MODIFIED="1536451360667" TEXT="Funktor-Konstruktor-Funktion">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536451345998" ID="ID_1853688774" MODIFIED="1536453357128" TEXT="Funktor-Konstruktor-Funktion">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536451365731" ID="ID_552359289" MODIFIED="1536451394878" TEXT="f&#xfc;r Aufruf aus dem Konstruktor-Kontext">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31358,6 +31358,31 @@
 </richcontent>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453317787" ID="ID_975974776" MODIFIED="1536453363634" TEXT="integrieren in...">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536453326978" ID="ID_1071395763" MODIFIED="1536453367022" TEXT="Transformer">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536455906647" ID="ID_603515158" MODIFIED="1536455919470" TEXT="im Debugger beobachtet">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1536455920701" ID="ID_1992285034" MODIFIED="1536455938637" TEXT="&#xe4;u&#xdf;erer Funktor liegt im Heap">
+<icon BUILTIN="smily_bad"/>
+</node>
+<node CREATED="1536455947209" ID="ID_1054869208" MODIFIED="1536455959131" TEXT="innerer Funktor ist aber direkt dort eingebettet"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453368676" ID="ID_1560078731" MODIFIED="1536453372397" TEXT="Filter">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453373605" ID="ID_1544724438" MODIFIED="1536453376828" TEXT="MutableFilter">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453408359" ID="ID_63715215" MODIFIED="1536453414663" TEXT="Anpassen an Expander">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453419141" ID="ID_564310637" MODIFIED="1536453427198" TEXT="vereinfachen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 </node>

From 36d79be8b2325472ed29ca4362cdd669f2faec6a Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 15:27:25 +0200
Subject: [PATCH 075/178] TreeExplorer: refactor Filter in a similar way

---
 src/lib/iter-tree-explorer.hpp            | 85 ++++++++++++-----------
 tests/library/iter-tree-explorer-test.cpp | 38 +++++-----
 wiki/thinkPad.ichthyo.mm                  | 18 +++--
 3 files changed, 77 insertions(+), 64 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index b3a18bbe0..15b6f0b11 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -562,6 +562,24 @@ namespace lib {
       };
     
     
+    template<typename FUN, typename SRC>
+    inline void
+    static_assert_isPredicate()
+    {
+      using Res = typename _FunTraits<FUN,SRC>::Res;
+      static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
+    }
+    
+    template<typename FUN, typename SRC>
+    inline void
+    static_assert_isSourceResultCompatible()
+    {
+      using ResIter = typename _DecoratorTraits<typename _FunTraits<FUN,SRC>::Res>::SrcIter;
+      static_assert (std::is_convertible<typename ResIter::value_type, typename SRC::value_type>::value,
+                     "the iterator from the expansion must yield compatible values");
+    }
+    
+    
     
     /**
      * @internal Base of pipe processing decorator chain.
@@ -879,17 +897,14 @@ namespace lib {
      * The filter predicate and thus the source iterator is evaluated _eagerly_, to establish the
      * *invariant* of this class: _if a "current element" exists, it has already been approved._
      */
-    template<class SRC, class FUN>
+    template<class SRC>
     class Filter
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _FunTraits<FUN,SRC>;
-        using Res = typename _Traits::Res;
-        static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
         
       protected:
-        using FilterPredicate = typename _Traits::Functor;
+        using FilterPredicate = function<bool(SRC&)>;
         
         FilterPredicate predicate_;
         
@@ -898,9 +913,10 @@ namespace lib {
         Filter() =default;
         // inherited default copy operations
         
+        template<typename FUN>
         Filter (SRC&& dataSrc, FUN&& filterFun)
           : SRC{move (dataSrc)}
-          , predicate_{forward<FUN> (filterFun)}
+          , predicate_{_FunTraits<FUN,SRC>::template adaptFunctor<SRC> (forward<FUN> (filterFun))}
           {
             pullFilter(); // initially pull to establish the invariant
           }
@@ -947,7 +963,7 @@ namespace lib {
         bool
         isDisabled()  const
           {
-            return not predicate_.boundFunction;
+            return not bool{predicate_};
           }
         
         /** @note establishes the invariant:
@@ -979,34 +995,22 @@ namespace lib {
      * @remarks filter predicates can be specified in a wide variety of forms, and will be adapted
      *       automatically. This flexibility also holds for any of the additional clauses provided
      *       for remoulding the filter. Especially this means that functors of different kinds can
-     *       be mixed and combined. To allow for this flexibility, we need to drive the _base class_
-     *       with the most general form of a predicate functor, corresponding to `bool<SRC&>`.
-     *       Hereby we exploit the fact that the _wrapped filter,_ i.e. the Functor type constructed
-     *       in the _FunTraits traits, boils down to that most generic form, adapting the arguments
-     *       automatically. Thus the initial functor, the one passed to the ctor of this class, is
-     *       effectively wrapped twice, so it can be combined later on with any other form and
-     *       shape of functor. And since everything is inline, the compiler will remove any
-     *       overhead resulting from this redundant wrapping.
+     *       be mixed and combined.
      */
-    template<class SRC, class FUN>
+    template<class SRC>
     class MutableFilter
-      : public Filter<SRC, typename _FunTraits<FUN,SRC>::Functor>
+      : public Filter<SRC>
       {
-        using _Traits = _FunTraits<FUN,SRC>;
-        using FilterPredicate = typename _Traits::Functor;
-        using _Base = Filter<SRC,FilterPredicate>;
-        
+        using _Filter = Filter<SRC>;
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using Res = typename _Traits::Res;
-        static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
-        
         
       public:
         MutableFilter() =default;
         // inherited default copy operations
         
+        template<typename FUN>
         MutableFilter (SRC&& dataSrc, FUN&& filterFun)
-          : _Base{move (dataSrc), FilterPredicate{forward<FUN> (filterFun)}}
+          : _Filter{move (dataSrc), forward<FUN> (filterFun)}
           { }
         
         
@@ -1110,7 +1114,7 @@ namespace lib {
         void
         disableFilter()
           {
-            _Base::predicate_.boundFunction = nullptr;
+            _Filter::predicate_ = nullptr;
           }
         
         
@@ -1134,21 +1138,18 @@ namespace lib {
         void
         remouldFilter (COND&& additionalClause, COMB buildCombinedClause)
           {
-            using _ChainTraits = _FunTraits<COND,SRC>;
-            using Res = typename _ChainTraits::Res;
-            static_assert(std::is_constructible<bool, Res>::value, "Chained Functor must be a predicate");
+            static_assert_isPredicate<COND,SRC>();
             
-            using WrappedPredicate = typename _Base::FilterPredicate;
-            using ChainPredicate = typename _ChainTraits::Functor;
+            using WrappedPredicate = typename _Filter::FilterPredicate;
             
-            WrappedPredicate& firstClause = _Base::predicate_;             // pick up the existing filter predicate
-            ChainPredicate chainClause{forward<COND> (additionalClause)};  // wrap the extension predicate in a similar way
-            
-            if (_Base::isDisabled())
-              firstClause.boundFunction = ACCEPT_ALL;
+            WrappedPredicate& firstClause = _Filter::predicate_;             // pick up the existing filter predicate
+            WrappedPredicate chainClause{_FunTraits<COND,SRC>::template adaptFunctor<SRC> (forward<COND> (additionalClause))};
+                                                                             // wrap the extension predicate in a similar way
+            if (_Filter::isDisabled())
+              _Filter::predicate_ = ACCEPT_ALL;
                 
-            _Base::predicate_ = WrappedPredicate{buildCombinedClause (firstClause, chainClause)};
-            _Base::pullFilter();                                           // pull to re-establish the Invariant
+            _Filter::predicate_ = buildCombinedClause (firstClause, chainClause);
+            _Filter::pullFilter();                                           // pull to re-establish the Invariant
           }
       };
     
@@ -1455,7 +1456,9 @@ namespace lib {
       auto
       filter (FUN&& filterPredicate)
         {
-          using ResCore = iter_explorer::Filter<SRC, FUN>;
+          iter_explorer::static_assert_isPredicate<FUN,SRC>();
+          
+          using ResCore = iter_explorer::Filter<SRC>;
           using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
           
           return TreeExplorer<ResIter> (ResCore {move(*this), forward<FUN>(filterPredicate)});
@@ -1483,7 +1486,9 @@ namespace lib {
       auto
       mutableFilter (FUN&& filterPredicate)
         {
-          using ResCore = iter_explorer::MutableFilter<SRC, FUN>;
+          iter_explorer::static_assert_isPredicate<FUN,SRC>();
+          
+          using ResCore = iter_explorer::MutableFilter<SRC>;
           using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
           
           return TreeExplorer<ResIter> (ResCore {move(*this), forward<FUN>(filterPredicate)});
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 914349475..08c3f799b 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -912,26 +912,26 @@ namespace test{
           
           
           // verify enabling and disabling...
-          auto seq2 = treeExplore(CountDown{10})
-                        .mutableFilter(takeTrd);
+          seq = treeExplore(CountDown{10})
+                  .mutableFilter(takeTrd);
           
-          CHECK (9 == *seq2);
-          seq2.disableFilter();
-          CHECK (9 == *seq2);
-          ++seq2;
-          CHECK (8 == *seq2);
-          seq2.andNotFilter (takeEve);
-          CHECK (7 == *seq2);
-          ++seq2;
-          CHECK (5 == *seq2);
-          seq2.disableFilter();
-          CHECK (5 == *seq2);
-          ++seq2;
-          CHECK (4 == *seq2);
-          ++seq2;
-          CHECK (3 == *seq2);
-          seq2.flipFilter();  // everything rejected
-          CHECK (isnil (seq2));
+          CHECK (9 == *seq);
+          seq.disableFilter();
+          CHECK (9 == *seq);
+          ++seq;
+          CHECK (8 == *seq);
+          seq.andNotFilter (takeEve);
+          CHECK (7 == *seq);
+          ++seq;
+          CHECK (5 == *seq);
+          seq.disableFilter();
+          CHECK (5 == *seq);
+          ++seq;
+          CHECK (4 == *seq);
+          ++seq;
+          CHECK (3 == *seq);
+          seq.flipFilter();  // everything rejected
+          CHECK (isnil (seq));
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index bab370530..b63eb3126 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31126,6 +31126,10 @@
 <icon BUILTIN="broken-line"/>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1536499475717" ID="ID_1987289240" MODIFIED="1536499534632" TEXT="Nach Refactoring TreeExplorer nun m&#xf6;glich">
+<arrowlink COLOR="#5cb3a1" DESTINATION="ID_1315131204" ENDARROW="Default" ENDINCLINATION="691;0;" ID="Arrow_ID_86390894" STARTARROW="None" STARTINCLINATION="167;37;"/>
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 </node>
 </node>
@@ -31239,7 +31243,8 @@
 <node CREATED="1536420678842" ID="ID_1524886712" MODIFIED="1536420681830" TEXT="Ergebnis-Typ"/>
 </node>
 </node>
-<node CREATED="1536420803778" ID="ID_1315131204" MODIFIED="1536420809629" TEXT="Funktions-Signatur verbergen">
+<node CREATED="1536420803778" ID="ID_1315131204" MODIFIED="1536499525208" TEXT="Funktions-Signatur verbergen">
+<linktarget COLOR="#5cb3a1" DESTINATION="ID_1315131204" ENDARROW="Default" ENDINCLINATION="691;0;" ID="Arrow_ID_86390894" SOURCE="ID_1987289240" STARTARROW="None" STARTINCLINATION="167;37;"/>
 <node CREATED="1536420811265" ID="ID_1167994865" MODIFIED="1536420823683" TEXT="reduzieren auf res(SRC)"/>
 <node CREATED="1536420824983" ID="ID_784540518" MODIFIED="1536420836185" TEXT="konkrete Funktion in Adapter setzen"/>
 <node CREATED="1536420932944" ID="ID_512498364" MODIFIED="1536420940219" TEXT="ArgAccessor beim Aufruf">
@@ -31266,6 +31271,9 @@
 </richcontent>
 </node>
 </node>
+<node CREATED="1536499557658" ID="ID_1939855291" MODIFIED="1536499572569" TEXT="daf&#xfc;r verschwindet konkreter Funktor-Typ vom Template">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 </node>
 </node>
@@ -31370,11 +31378,11 @@
 </node>
 <node CREATED="1536455947209" ID="ID_1054869208" MODIFIED="1536455959131" TEXT="innerer Funktor ist aber direkt dort eingebettet"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453368676" ID="ID_1560078731" MODIFIED="1536453372397" TEXT="Filter">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536453368676" ID="ID_1560078731" MODIFIED="1536499292336" TEXT="Filter">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453373605" ID="ID_1544724438" MODIFIED="1536453376828" TEXT="MutableFilter">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536453373605" ID="ID_1544724438" MODIFIED="1536499295024" TEXT="MutableFilter">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453408359" ID="ID_63715215" MODIFIED="1536453414663" TEXT="Anpassen an Expander">
 <icon BUILTIN="flag-yellow"/>

From 90677404565306b891f8efd95002ac7c0dd74d17 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 19:36:36 +0200
Subject: [PATCH 076/178] TreeExplorer: refactor Expander to fit in with the
 reworked design

Here the design trardeoff becomes clearly visiblie
- on the plus side, we removed that spurous redundant info
  from the template parameter, and we simplified functor rebinding
- but as a tradeoff, we now always have two std::function objects
  nested into each other, which also means that at least the outer
  object resides on the heap and /inevitably/ calls through a
  function pointer, even in case the target function is a lambda,
  simply because some type erasure happened, and the call site
  does not know the actual type anymore
---
 src/lib/iter-tree-explorer.hpp |  44 ++++----
 wiki/thinkPad.ichthyo.mm       | 195 +++++++++++++++++++++++++--------
 2 files changed, 172 insertions(+), 67 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 15b6f0b11..671184b90 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -511,7 +511,7 @@ namespace lib {
             
             static auto build() { return [](ARG& arg) -> ARG& { return arg; }; }
             
-            static auto wrap (FUN&& rawFunctor) { return forward<FUN> (rawFunctor); }
+            static decltype(auto) wrap (FUN&& rawFunctor) { return forward<FUN> (rawFunctor); }
           };
         
         /** adapt to a functor, which accepts the value type of the source sequence ("monadic" usage pattern) */
@@ -521,7 +521,7 @@ namespace lib {
           {                                                                                //  often seems to accept IT::value_type (while in fact it doesn't)
             static auto build() { return [](auto& iter) { return *iter; }; }
             
-            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& srcIter) { return rawFun(*srcIter); }; }
+            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& srcIter) -> Res { return rawFun(*srcIter); }; }
           };
         
         /** adapt to a functor collaborating with an IterSource based iterator pipeline */
@@ -534,7 +534,7 @@ namespace lib {
             
             static auto build() { return [](auto& iter) -> Source& { return iter.source(); }; }
             
-            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& iter) { return rawFun(*iter.source()); }; }
+            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& iter) -> Res { return rawFun(iter.source()); }; }
           };
         
         
@@ -570,15 +570,6 @@ namespace lib {
       static_assert(std::is_constructible<bool, Res>::value, "Functor must be a predicate");
     }
     
-    template<typename FUN, typename SRC>
-    inline void
-    static_assert_isSourceResultCompatible()
-    {
-      using ResIter = typename _DecoratorTraits<typename _FunTraits<FUN,SRC>::Res>::SrcIter;
-      static_assert (std::is_convertible<typename ResIter::value_type, typename SRC::value_type>::value,
-                     "the iterator from the expansion must yield compatible values");
-    }
-    
     
     
     /**
@@ -631,28 +622,33 @@ namespace lib {
      * @tparam SRC the wrapped source iterator, typically a TreeExplorer or nested decorator.
      * @tparam FUN the concrete type of the functor passed. Will be dissected to find the signature
      */
-    template<class SRC, class FUN>
+    template<class SRC, class RES>
     class Expander
       : public SRC
       {
         static_assert(can_IterForEach<SRC>::value, "Lumiera Iterator required as source");
-        using _Traits = _FunTraits<FUN,SRC>;
-        using ExpandFunctor = typename _Traits::Functor;
         
-        using ResIter = typename _DecoratorTraits<typename _Traits::Res>::SrcIter;
-        static_assert (std::is_convertible<typename ResIter::value_type, typename SRC::value_type>::value,
+        using ResIter = typename _DecoratorTraits<RES>::SrcIter;
+        static_assert (std::is_convertible<typename ResIter::value_type, typename SRC::value_type>(),
                        "the iterator from the expansion must yield compatible values");
         
-        ExpandFunctor expandChildren_;
+        using RootExpandFunctor = function<RES(SRC&)>;
+        using ChldExpandFunctor = function<RES(ResIter&)>;
+        
+        RootExpandFunctor expandRoot_;
+        ChldExpandFunctor expandChild_;
+        
         IterStack<ResIter> expansions_;
         
       public:
         Expander() =default;
         // inherited default copy operations
         
+        template<typename FUN>
         Expander (SRC&& parentExplorer, FUN&& expandFunctor)
           : SRC{move (parentExplorer)}                           // NOTE: slicing move to strip TreeExplorer (Builder)
-          , expandChildren_{forward<FUN> (expandFunctor)}
+          , expandRoot_ {_FunTraits<FUN,SRC>    ::template adaptFunctor<SRC>     (forward<FUN> (expandFunctor))}  // adapt to accept SRC&
+          , expandChild_{_FunTraits<FUN,ResIter>::template adaptFunctor<ResIter> (forward<FUN> (expandFunctor))}  // adapt to accept RES&
           , expansions_{}
           { }
         
@@ -663,8 +659,8 @@ namespace lib {
           {
             REQUIRE (this->checkPoint(), "attempt to expand an empty explorer");
             
-            ResIter expanded{ hasChildren()? expandChildren_(*expansions_)
-                                           : expandChildren_(*this)};
+            ResIter expanded{ hasChildren()? expandChild_(*expansions_)
+                                           : expandRoot_(*this)};
             incrementCurrent();   // consume current head element (but don't clean-up)
             if (not isnil(expanded))
               expansions_.push (move(expanded));
@@ -834,7 +830,7 @@ namespace lib {
         
         template<typename FUN>
         Transformer (SRC&& dataSrc, FUN&& transformFunctor)
-          : SRC{move (dataSrc)}
+          : SRC{move (dataSrc)}                            // NOTE: slicing move to strip TreeExplorer (Builder)
           , trafo_{_FunTraits<FUN,SRC>::template adaptFunctor<SRC> (forward<FUN> (transformFunctor))}
           { }
         
@@ -1376,7 +1372,9 @@ namespace lib {
       auto
       expand (FUN&& expandFunctor)
         {
-          using ResCore = iter_explorer::Expander<SRC, FUN>;
+          using ExpandedChildren = typename iter_explorer::_FunTraits<FUN,SRC>::Res;
+          
+          using ResCore = iter_explorer::Expander<SRC, ExpandedChildren>;
           using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
           
           return TreeExplorer<ResIter> (ResCore {move(*this), forward<FUN>(expandFunctor)});
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b63eb3126..2aff97a52 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -25175,8 +25175,7 @@
       &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;^~~~~~~~~~
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
@@ -31095,8 +31094,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536410408473" ID="ID_1812410133" MODIFIED="1536410416079" TEXT="Filter deaktivieren">
 <icon BUILTIN="pencil"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367899301" ID="ID_1128977501" MODIFIED="1536367913469" TEXT="Neuzuweisung kompatibler Filter">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536367899301" ID="ID_1128977501" MODIFIED="1536514380198" TEXT="Neuzuweisung kompatibler Filter">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536367916619" ID="ID_411753478" MODIFIED="1536367919774" TEXT="geht das?"/>
 <node CREATED="1536367921474" ID="ID_849620368" MODIFIED="1536367938773" TEXT="nur Signatur-Typ auf MutableFilter ">
 <icon BUILTIN="idea"/>
@@ -31136,9 +31135,9 @@
 </node>
 <node CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536409531056" TEXT="Design-Probleme">
 <icon BUILTIN="bell"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536410313468" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<node COLOR="#338800" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536514384786" TEXT="heterogene Pr&#xe4;dikat-Typen">
 <linktarget COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="105;-232;" ID="Arrow_ID_346491515" SOURCE="ID_1859852045" STARTARROW="None" STARTINCLINATION="-143;0;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535919549942" ID="ID_270773242" MODIFIED="1536409271272" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31164,11 +31163,10 @@
       Typischerweise wird dieser ja sogar beim Aufruf des getemplateteten Funtions-Operators geInlined
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node COLOR="#338800" CREATED="1535919835337" ID="ID_619686338" MODIFIED="1536409289139" TEXT="1.L&#xf6;sung: doppelt wrappen?">
+<node COLOR="#338800" CREATED="1535919835337" FOLDED="true" ID="ID_619686338" MODIFIED="1536514373005" TEXT="1.L&#xf6;sung: doppelt wrappen?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535923167297" ID="ID_1635196754" MODIFIED="1535923219590" TEXT="Basis-Filter sieht unspezifische Form des Pr&#xe4;dikates"/>
 <node CREATED="1535923237336" ID="ID_508718189" MODIFIED="1535923251434" TEXT="im Funktor steckt eingewickelt eine spezifische Form"/>
@@ -31203,6 +31201,15 @@
 </node>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1536514257510" ID="ID_1708992184" MODIFIED="1536514273317" TEXT="2.L&#xf6;sung: type erasure auf dem Funktor">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536514274780" ID="ID_767166560" MODIFIED="1536514286353" TEXT="l&#xe4;uft auch auf doppelt wrappen hinaus">
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#435e98" CREATED="1536514288618" ID="ID_821501153" MODIFIED="1536514362703" TEXT="...nur machen wir das im umgebauten Desgin ohnehin immer">
+<arrowlink COLOR="#3163b8" DESTINATION="ID_389572303" ENDARROW="Default" ENDINCLINATION="1208;0;" ID="Arrow_ID_1470957358" STARTARROW="None" STARTINCLINATION="627;32;"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536455982782" TEXT="extrem komplexe Typen">
 <icon BUILTIN="pencil"/>
@@ -31216,8 +31223,7 @@
       ...ich verbrenne Stunden beim Debuggen von neuem Code
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="stop-sign"/>
 </node>
 <node CREATED="1536409470623" ID="ID_862991864" MODIFIED="1536409494631" TEXT="Ansatzpunkte">
@@ -31267,8 +31273,7 @@
       Konsequenz: brauche <b>Template</b>&#160;Funktions-Operator
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1536499557658" ID="ID_1939855291" MODIFIED="1536499572569" TEXT="daf&#xfc;r verschwindet konkreter Funktor-Typ vom Template">
@@ -31293,8 +31298,7 @@
       der Funktor f&#252;r den Expander wird <i>explizit als Sonderfall</i>&#160; aufgefa&#223;t
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31310,13 +31314,13 @@
       Daher ist jetzt das gesamte Design &quot;anders herum&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536441367354" ID="ID_1778093460" MODIFIED="1536441424596" TEXT="welcher eine gegebene Funktion in eine vorgegebene function&lt;SIG&gt; einpasst"/>
 </node>
 </node>
-<node CREATED="1536451222025" HGAP="9" ID="ID_389572303" MODIFIED="1536451229468" TEXT="Umbau" VSHIFT="5">
+<node CREATED="1536451222025" HGAP="9" ID="ID_389572303" MODIFIED="1536514344935" TEXT="Umbau" VSHIFT="5">
+<linktarget COLOR="#3163b8" DESTINATION="ID_389572303" ENDARROW="Default" ENDINCLINATION="1208;0;" ID="Arrow_ID_1470957358" SOURCE="ID_821501153" STARTARROW="None" STARTINCLINATION="627;32;"/>
 <node COLOR="#338800" CREATED="1536451240308" ID="ID_241157222" MODIFIED="1536451273762" TEXT="den SRC-Parameter optional machen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -31338,8 +31342,7 @@
       ...wo der volle Typ des Funktors FUN bekannt ist
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536451415725" ID="ID_1712691133" MODIFIED="1536451426247" TEXT="Bekommt SRC-Iterator als Template-Param"/>
 <node CREATED="1536451430508" ID="ID_224998497" MODIFIED="1536451471881" TEXT="wirft eine std::function&lt;Ret(SRC&amp;)&gt; ab"/>
@@ -31362,12 +31365,11 @@
       In dem Fall dann <b>keine</b>&#160;doppelte Verpackung mehr!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453317787" ID="ID_975974776" MODIFIED="1536453363634" TEXT="integrieren in...">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536453317787" ID="ID_975974776" MODIFIED="1536514227734" TEXT="integrieren in...">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536453326978" ID="ID_1071395763" MODIFIED="1536453367022" TEXT="Transformer">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536455906647" ID="ID_603515158" MODIFIED="1536455919470" TEXT="im Debugger beobachtet">
@@ -31384,8 +31386,122 @@
 <node COLOR="#338800" CREATED="1536453373605" ID="ID_1544724438" MODIFIED="1536499295024" TEXT="MutableFilter">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453408359" ID="ID_63715215" MODIFIED="1536453414663" TEXT="Anpassen an Expander">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536453408359" ID="ID_63715215" MODIFIED="1536514221593" TEXT="Anpassen an Expander">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536507478977" ID="ID_1869401041" MODIFIED="1536508603516" TEXT="zwei Alternativen">
+<icon BUILTIN="info"/>
+<node CREATED="1536507484384" ID="ID_1235979491" MODIFIED="1536507500681" TEXT="wie bisher">
+<node CREATED="1536507602416" ID="ID_42128364" MODIFIED="1536508634353" TEXT="konkreter Funktor Typ-Parameter">
+<icon BUILTIN="smily_bad"/>
+</node>
+<node CREATED="1536507659208" ID="ID_35307754" MODIFIED="1536508637902" TEXT="Adapter im konkreten Aufruf">
+<icon BUILTIN="ksmiletris"/>
+<node CREATED="1536507751800" ID="ID_941404287" MODIFIED="1536507757104" TEXT="in expandChildren()"/>
+<node CREATED="1536507757860" ID="ID_133943734" MODIFIED="1536507768814" TEXT="jeweils beide Varianten instantiiert"/>
+</node>
+<node CREATED="1536507818274" ID="ID_1978344432" MODIFIED="1536508645416" TEXT="Adapter-Lambda ruft (inneren) Basis-Funktor">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+<node CREATED="1536507882434" ID="ID_216951915" MODIFIED="1536507892221" TEXT="type erasure">
+<node CREATED="1536507918965" ID="ID_1992478190" MODIFIED="1536508652494" TEXT="expanded Iter als 2.Typ-Parameter">
+<icon BUILTIN="smiley-neutral"/>
+<node CREATED="1536507954841" ID="ID_281799195" MODIFIED="1536507969106" TEXT="weil wir ihn speichern m&#xfc;ssen"/>
+<node CREATED="1536507960432" ID="ID_164121163" MODIFIED="1536507962403" TEXT="im Stack"/>
+</node>
+<node CREATED="1536508021816" ID="ID_1317784150" MODIFIED="1536508682562" TEXT="m&#xfc;ssen zwei Funktoren speichern">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1536508097204" ID="ID_1486255600" MODIFIED="1536508101760" TEXT="unvermeidbar, egal wo"/>
+<node CREATED="1536508116330" ID="ID_156138966" MODIFIED="1536508135549">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      da sich die Iteratoren <i>wirklich</i>&#160;unterscheiden k&#246;nnen d&#252;rfen
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1536508169610" ID="ID_1935713564" MODIFIED="1536508703334" TEXT="beide Funktoren direkt in expandChildren() verwendet">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1536508188208" ID="ID_220313082" MODIFIED="1536508708301" TEXT="&#xe4;u&#xdf;erer Adapter-Funktor ruft inneren Basis-Funktor">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1536508254591" ID="ID_1794037057" MODIFIED="1536508268217" TEXT="mehr Overhead wie alte L&#xf6;sung"/>
+<node CREATED="1536508268765" ID="ID_1221492112" MODIFIED="1536508288165" TEXT="aber genauso viel wie f&#xfc;r die anderen F&#xe4;lle (neue L&#xf6;sung)"/>
+<node CREATED="1536508292026" ID="ID_775504670" MODIFIED="1536508307124" TEXT="verwendet gleichen Code, Funktor-struct f&#xe4;llt weg"/>
+</node>
+</node>
+</node>
+<node CREATED="1536508310935" ID="ID_838394264" MODIFIED="1536508324120" TEXT="Entscheidung: type erasure">
+<icon BUILTIN="forward"/>
+<node CREATED="1536508326877" ID="ID_206041639" MODIFIED="1536508777424" TEXT="die gesamte neue L&#xf6;sung ist etwas aufwendiger zur Laufzeit">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...wobei der konkrete Overhead noch nicht wirklich klar ist;
+    </p>
+    <p>
+      h&#228;ngt davon ab, wie geschickt der Optimizer ist, und was man konkret als Funktoren angibt.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Vermutlich haben wir hier
+    </p>
+    <ul>
+      <li>
+        zwingend eine Indirektion durch einen Funktions-Pointer (weil eine Type Erasure stattfindet)
+      </li>
+      <li>
+        m&#246;glicherweise eine zus&#228;tzliche Heap-Allocation (es sei denn, der Optimizer ist wirklich clever)
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="down"/>
+</node>
+<node CREATED="1536508343419" ID="ID_1905482399" MODIFIED="1536508782549" TEXT="und hat daf&#xfc;r einfacheren Code und klarere Template-Argumente">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und <b>das</b>&#160;ist das Argument, das sticht
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="up"/>
+</node>
+<node CREATED="1536508376894" ID="ID_1216206461" MODIFIED="1536508787136" TEXT="Erhalten der alten L&#xf6;sung w&#xfc;rde zwei redundante Code-Pfade erfordern">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...will sagen, wenn schon eine neue L&#246;sung, dann von A bis Z
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="up"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1536514206125" HGAP="-18" ID="ID_1018008959" MODIFIED="1536514219722" TEXT="Implementierung umschreiben" VSHIFT="13">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453419141" ID="ID_564310637" MODIFIED="1536453427198" TEXT="vereinfachen">
@@ -31504,8 +31620,7 @@
       die Search-Engine bl&#228;ht die Debug-Infos <b>gewaltig</b>&#160;auf
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1536368144661" ID="ID_184622907" MODIFIED="1536368158636" TEXT="BusTerm_test = 12 MB">
 <icon BUILTIN="smiley-angry"/>
 </node>
@@ -31602,8 +31717,7 @@
       und man kann die Expand-Funktion direkt als std::function-Objekt durchgeben
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
@@ -31626,8 +31740,7 @@
       f&#252;r sp&#228;teres Backtracking...
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node COLOR="#338800" CREATED="1536345349807" ID="ID_219089137" MODIFIED="1536345462776" TEXT="TreeExplorer strippen">
 <icon BUILTIN="button_ok"/>
@@ -31641,8 +31754,7 @@
       ...damit man stets weitere Builder-Funktionen auf der Pipeline aufrufen kann
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536345386770" ID="ID_1554908631" MODIFIED="1536345421597" TEXT="wir brauchen aber den Filter-Iterator selber">
 <richcontent TYPE="NOTE"><html>
@@ -31654,8 +31766,7 @@
       weil wir <i>diesen</i>&#160;manipulieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536345422997" ID="ID_1977741990" MODIFIED="1536345460034" TEXT="nur so kann man eine Referenz auf den Zustand in den Expand-Funktor geben">
 <arrowlink DESTINATION="ID_1232898317" ENDARROW="Default" ENDINCLINATION="550;0;" ID="Arrow_ID_1329838760" STARTARROW="None" STARTINCLINATION="109;0;"/>
@@ -31801,8 +31912,7 @@
       sofern eine Initialisierung ausidem Source-Iterator <i>m&#246;glich ist</i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536271209768" ID="ID_1767817102" MODIFIED="1536271396476" TEXT="...weil es dann grunds&#xe4;tzch nicht notwendig ist, eigens etwas zu tun"/>
 </node>
@@ -31817,8 +31927,7 @@
       und sonst ist das <i>nicht wirklich</i>&#160;&quot;kniffelig&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31846,8 +31955,7 @@
       dann <i>sollte </i>der Optimizer diese gesamten x-fachen Wrapper nahezu restlos entfernen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smiley-neutral"/>
 </node>
 </node>
@@ -31917,8 +32025,7 @@
       Und der Basis-Layer steht irgendwo, nicht an der aktuellen Position.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" STARTARROW="None" STARTINCLINATION="106;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>

From 7cdd680e788df5395dbd24320cd7d4e8ecb62fdc Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 20:44:32 +0200
Subject: [PATCH 077/178] TreeExplorer: clean-up after refactoring

So we have now a reworked version of the internals of TreeExplorer in place.
It should be easier to debug template instantation traces now, since most
of the redundancy on the type parameters could be remove. Moreover, existing
pipelines can now be re-assigned with similarily built pipelines in many cases,
since the concrete type of the functor is now erased.

The price tag for this refactoring is that we have now to perform a call
through a function pointer on each functor invocation (due to the type erasure).
And seemingly the bloat in the debugging information has been increased slightly
(this overhead is removed by stripping the binary)
---
 src/lib/iter-chain-search.hpp             |  6 +--
 src/lib/iter-tree-explorer.hpp            | 54 ++++++++++----------
 tests/library/iter-tree-explorer-test.cpp |  3 --
 wiki/thinkPad.ichthyo.mm                  | 62 +++++++++++++----------
 4 files changed, 62 insertions(+), 63 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 4065cccd2..e839d37cf 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -93,10 +93,8 @@ namespace iter {
     struct _IterChainSetup
       {
         using Filter = decltype( buildSearchFilter(std::declval<SRC>()).asIterator() );
-        
         using StepFunctor = std::function<Filter(Filter const&)>;
-        using StepWrapper = typename iter_explorer::_FunTraits<Filter(Filter const&), Filter const&>::Functor;
-                                                                                      // ^^^^^^^^^^^^^ used as argument on generic lambda 
+        
         using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
         
         static Pipeline
@@ -130,7 +128,7 @@ namespace iter {
       
       using Value  = typename _Base::value_type;
       using Filter = typename _Trait::Filter;
-      using Step   = typename _Trait::StepWrapper;
+      using Step   = typename _Trait::StepFunctor;
       
       std::vector<Step> stepChain_;
       
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 671184b90..bd3007278 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -465,10 +465,10 @@ namespace lib {
      *   accepts the iterator or state core itself (the "opaque state manipulation" usage pattern).
      * - we generate a suitable argument accessor function and build the function composition
      *   of this accessor and the provided _expansion functor_.
-     * - the resulting, combined functor is stored into a std::function, but wired in a way to
-     *   keep the argument-accepting front-end still generic (templated `operator()`). This
-     *   special adapter supports the case when the _expansion functor_ yields a child sequence
-     *   type different but compatible to the original source sequence embedded in TreeExplorer.
+     * - the resulting, combined functor is stored into a std::function, thereby abstracting
+     *   from the actual adapting mechanism. This allows to combine different kinds of functors
+     *   within the same processing step; and in addition, it allows the processing step to
+     *   remain agnostic with respect to the adaptation and concrete type of the functor/lambda.
      * @tparam FUN either the signature, or something _"function-like"_ passed as functor to be bound
      * @tparam SRC (optional) but need to specify the source iterator type to apply when passing
      *             a generic lambda or template as FUN. Such a generic functor will be _instantiated_
@@ -509,9 +509,11 @@ namespace lib {
             static_assert (std::is_convertible<ARG, FunArgType>::value,
                            "the bound functor must accept the source iterator or state core as parameter");
             
-            static auto build() { return [](ARG& arg) -> ARG& { return arg; }; }
-            
-            static decltype(auto) wrap (FUN&& rawFunctor) { return forward<FUN> (rawFunctor); }
+            static decltype(auto)
+            wrap (FUN&& rawFunctor)  ///< actually pass-through the raw functor unaltered
+              {
+                return forward<FUN> (rawFunctor);
+              }
           };
         
         /** adapt to a functor, which accepts the value type of the source sequence ("monadic" usage pattern) */
@@ -519,9 +521,11 @@ namespace lib {
         struct ArgAdapter<IT,   enable_if<__and_<is_convertible<typename IT::value_type, Arg>
                                                  ,__not_<is_convertible<IT, Arg>>>>>        // need to exclude the latter, since IterableDecorator
           {                                                                                //  often seems to accept IT::value_type (while in fact it doesn't)
-            static auto build() { return [](auto& iter) { return *iter; }; }
-            
-            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& srcIter) -> Res { return rawFun(*srcIter); }; }
+            static auto
+            wrap (function<Sig> rawFun)          ///< adapt by dereferencing the source iterator
+              {
+                return [rawFun](IT& srcIter) -> Res { return rawFun(*srcIter); };
+              }
           };
         
         /** adapt to a functor collaborating with an IterSource based iterator pipeline */
@@ -532,27 +536,16 @@ namespace lib {
           {
             using Source = typename IT::Source;
             
-            static auto build() { return [](auto& iter) -> Source& { return iter.source(); }; }
-            
-            static auto wrap (function<Sig> rawFun) { return [rawFun](IT& iter) -> Res { return rawFun(iter.source()); }; }
-          };
-        
-        
-        /** holder for the suitably adapted _expansion functor_ */
-        struct Functor
-          {
-            function<Sig> boundFunction;
-            
-            template<typename ARG>
-            Res
-            operator() (ARG& arg)  const
+            static auto
+            wrap (function<Sig> rawFun)       ///< extract the (abstracted) IterSource
               {
-                auto accessArg = ArgAdapter<ARG>::build();
-                
-                return boundFunction (accessArg (arg));
+                return [rawFun](IT& iter) -> Res { return rawFun(iter.source()); };
               }
           };
         
+        
+        
+        /** builder to create a nested/wrapping functor, suitably adapting the arguments */
         template<typename IT>
         static auto
         adaptFunctor (FUN&& rawFunctor)
@@ -618,7 +611,10 @@ namespace lib {
      * the source iterator wrapped by this decorator.
      * @remark since we allow a lot of leeway regarding the actual form and definition of the
      *         _expansion functor_, there is a lot of minute technical details, mostly confined
-     *         within the _FunTraits traits.
+     *         within the _FunTraits traits. For the same reason, we need to prepare two different
+     *         bindings of the passed raw functor, one to work on the source sequence, and the other
+     *         one to work on the result sequence of a recursive child expansions; these two sequences
+     *         need not be implemented in the same way, which simplifies the definition of algorithms.
      * @tparam SRC the wrapped source iterator, typically a TreeExplorer or nested decorator.
      * @tparam FUN the concrete type of the functor passed. Will be dissected to find the signature
      */
@@ -653,6 +649,7 @@ namespace lib {
           { }
         
         
+        
         /** core operation: expand current head element */
         void
         expandChildren()
@@ -1189,6 +1186,7 @@ namespace lib {
         using Parent = WrappedLumieraIter<SRC>;
         using Val = typename SRC::value_type;                             ///////////////////////////////////TICKET #1125 : get rid of Val
         
+       ~PackagedTreeExplorerSource() { }
       public:
         using Parent::Parent;
         
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 08c3f799b..418a33f2f 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -428,8 +428,6 @@ namespace test{
                       .expand([](CountDown core){ return NumberSequence{ core.yield() - 1}; })        // expand-functor: StateCore -> Iter
                       );
           
-#if false /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1118 : GDB Segfault on loading the inferior
-          /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1118 : Generated code works just fine and passes Test though
           verify_treeExpandingIterator(
                     treeExplore(CountDown{5})
                       .expand([](auto & it){ return CountDown{ *it - 1}; })                           // generic Lambda: Iter& -> StateCore
@@ -439,7 +437,6 @@ namespace test{
                     treeExplore(CountDown{5})
                       .expand([](auto it){ return decltype(it){ *it - 1}; })                          // generic Lambda: Iter -> Iter
                       );
-#endif    /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1118 : GDB Segfault on loading the inferior
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 2aff97a52..3ad762420 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30795,8 +30795,8 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1536410175049" ID="ID_1439541143" MODIFIED="1536410185984" TEXT="Erg&#xe4;nzungen">
-<icon BUILTIN="pencil"/>
+<node CREATED="1536410175049" ID="ID_1439541143" MODIFIED="1536516072058" TEXT="Erg&#xe4;nzungen">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535894221015" FOLDED="true" ID="ID_977007729" MODIFIED="1535898215661" TEXT="Bug im Filter-Layer">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535894239308" ID="ID_1809452702" MODIFIED="1535894251655" TEXT="Reihenfolge des Parent-Aufrufes in expandChildren()"/>
@@ -30834,8 +30834,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" ID="ID_650057716" MODIFIED="1536410348400" TEXT="Aufgabe: Filter erweiterbar machen">
-<linktarget COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="100;100;" ID="Arrow_ID_1700598512" SOURCE="ID_257876647" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_650057716" MODIFIED="1536516299632" TEXT="Aufgabe: Filter erweiterbar machen">
+<linktarget COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="135;198;" ID="Arrow_ID_1700598512" SOURCE="ID_257876647" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535893718194" ID="ID_177803317" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
 <node CREATED="1535893752174" ID="ID_27030007" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
@@ -31040,8 +31040,8 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535919506060" ID="ID_1859852045" MODIFIED="1536410320485" TEXT="heterogene Pr&#xe4;dikat-Typen">
-<arrowlink COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="105;-232;" ID="Arrow_ID_346491515" STARTARROW="None" STARTINCLINATION="-143;0;"/>
+<node COLOR="#338800" CREATED="1535919506060" FOLDED="true" ID="ID_1859852045" MODIFIED="1536516302967" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<arrowlink COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="49;-142;" ID="Arrow_ID_346491515" STARTARROW="None" STARTINCLINATION="-143;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535919540560" ID="ID_1538734134" MODIFIED="1535932049581" TEXT="geht nicht?">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -31079,9 +31079,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367874016" ID="ID_109911994" MODIFIED="1536410392505" TEXT="Filter deaktivierbar machen">
-<linktarget COLOR="#d683c5" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" SOURCE="ID_649387933" STARTARROW="None" STARTINCLINATION="142;0;"/>
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536367874016" ID="ID_109911994" MODIFIED="1536516037376" TEXT="Filter deaktivierbar machen">
+<linktarget COLOR="#67ac9b" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" SOURCE="ID_649387933" STARTARROW="None" STARTINCLINATION="142;0;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1535899873112" ID="ID_81164806" MODIFIED="1535932139639" TEXT="Unit-Test (replizieren)">
 <icon BUILTIN="button_ok"/>
@@ -31091,10 +31091,10 @@
 <node COLOR="#338800" CREATED="1535913531701" ID="ID_1872325076" MODIFIED="1535932138102" TEXT="andere F&#xe4;lle auch covern">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536410408473" ID="ID_1812410133" MODIFIED="1536410416079" TEXT="Filter deaktivieren">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536410408473" ID="ID_1812410133" MODIFIED="1536515975946" TEXT="Filter deaktivieren">
+<icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1536367899301" ID="ID_1128977501" MODIFIED="1536514380198" TEXT="Neuzuweisung kompatibler Filter">
+<node COLOR="#338800" CREATED="1536367899301" FOLDED="true" ID="ID_1128977501" MODIFIED="1536516280898" TEXT="Neuzuweisung kompatibler Filter">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536367916619" ID="ID_411753478" MODIFIED="1536367919774" TEXT="geht das?"/>
 <node CREATED="1536367921474" ID="ID_849620368" MODIFIED="1536367938773" TEXT="nur Signatur-Typ auf MutableFilter ">
@@ -31133,10 +31133,10 @@
 </node>
 </node>
 </node>
-<node CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536409531056" TEXT="Design-Probleme">
-<icon BUILTIN="bell"/>
-<node COLOR="#338800" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536514384786" TEXT="heterogene Pr&#xe4;dikat-Typen">
-<linktarget COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="105;-232;" ID="Arrow_ID_346491515" SOURCE="ID_1859852045" STARTARROW="None" STARTINCLINATION="-143;0;"/>
+<node COLOR="#435e98" CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536515953937" TEXT="Design-Probleme">
+<icon BUILTIN="go"/>
+<node COLOR="#338800" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536516302968" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<linktarget COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="49;-142;" ID="Arrow_ID_346491515" SOURCE="ID_1859852045" STARTARROW="None" STARTINCLINATION="-143;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535919549942" ID="ID_270773242" MODIFIED="1536409271272" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
 <richcontent TYPE="NOTE"><html>
@@ -31211,8 +31211,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536455982782" TEXT="extrem komplexe Typen">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536515894710" TEXT="extrem komplexe Typen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536409316172" ID="ID_1468538186" MODIFIED="1536409340127" TEXT="Call-Traces sind nahezu unlesbar">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31230,7 +31230,8 @@
 <node CREATED="1536409438003" ID="ID_254117479" MODIFIED="1536409449286" TEXT="erhebliche Redundanzen in den Typen"/>
 <node CREATED="1536409503106" ID="ID_377815860" MODIFIED="1536409513965" TEXT="konkrete Lambdas in der Typsignatur"/>
 </node>
-<node CREATED="1536409720285" ID="ID_610904065" MODIFIED="1536409725545" TEXT="Untersuchung">
+<node CREATED="1536409720285" FOLDED="true" ID="ID_610904065" MODIFIED="1536516268555" TEXT="Untersuchung">
+<icon BUILTIN="info"/>
 <node CREATED="1536409726421" ID="ID_1705785900" MODIFIED="1536409738318" TEXT="welche Typen werden wirklich ben&#xf6;tigt">
 <icon BUILTIN="help"/>
 <node CREATED="1536409761248" ID="ID_753549743" MODIFIED="1536409843345" TEXT="Quelle == Basis-Typ"/>
@@ -31282,7 +31283,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1536441211468" HGAP="84" ID="ID_435661366" MODIFIED="1536451220949" TEXT="L&#xf6;sungs-Idee" VSHIFT="15">
+<node COLOR="#435e98" CREATED="1536441211468" HGAP="84" ID="ID_435661366" MODIFIED="1536515901080" TEXT="L&#xf6;sungs-Idee" VSHIFT="15">
+<icon BUILTIN="idea"/>
 <node CREATED="1536441217427" ID="ID_1508660342" MODIFIED="1536441270931" TEXT="die Signatur im Builder konstruieren. Traits nur noch auf Signatur abst&#xfc;tzen">
 <icon BUILTIN="full-1"/>
 </node>
@@ -31319,8 +31321,9 @@
 <node CREATED="1536441367354" ID="ID_1778093460" MODIFIED="1536441424596" TEXT="welcher eine gegebene Funktion in eine vorgegebene function&lt;SIG&gt; einpasst"/>
 </node>
 </node>
-<node CREATED="1536451222025" HGAP="9" ID="ID_389572303" MODIFIED="1536514344935" TEXT="Umbau" VSHIFT="5">
+<node COLOR="#338800" CREATED="1536451222025" HGAP="9" ID="ID_389572303" MODIFIED="1536515885403" TEXT="Umbau" VSHIFT="5">
 <linktarget COLOR="#3163b8" DESTINATION="ID_389572303" ENDARROW="Default" ENDINCLINATION="1208;0;" ID="Arrow_ID_1470957358" SOURCE="ID_821501153" STARTARROW="None" STARTINCLINATION="627;32;"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536451240308" ID="ID_241157222" MODIFIED="1536451273762" TEXT="den SRC-Parameter optional machen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -31386,7 +31389,7 @@
 <node COLOR="#338800" CREATED="1536453373605" ID="ID_1544724438" MODIFIED="1536499295024" TEXT="MutableFilter">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1536453408359" ID="ID_63715215" MODIFIED="1536514221593" TEXT="Anpassen an Expander">
+<node COLOR="#338800" CREATED="1536453408359" FOLDED="true" ID="ID_63715215" MODIFIED="1536515929401" TEXT="Anpassen an Expander">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536507478977" ID="ID_1869401041" MODIFIED="1536508603516" TEXT="zwei Alternativen">
 <icon BUILTIN="info"/>
@@ -31504,8 +31507,11 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536453419141" ID="ID_564310637" MODIFIED="1536453427198" TEXT="vereinfachen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536453419141" ID="ID_564310637" MODIFIED="1536515837769" TEXT="vereinfachen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536515844176" ID="ID_1550470066" MODIFIED="1536515856523" TEXT="nested Functor f&#xe4;llt weg"/>
+<node CREATED="1536515857230" ID="ID_1234982362" MODIFIED="1536515868816" TEXT="zugeh&#xf6;rige Builder fallen weg"/>
+<node CREATED="1536515869405" ID="ID_1548641638" MODIFIED="1536515881255" TEXT="alle darauf aufbauenden Typen sind &#xfc;berfl&#xfc;ssig"/>
 </node>
 </node>
 </node>
@@ -31564,8 +31570,8 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1536410348399" TEXT="Aufgabe: Filter erweiterbar machen">
-<arrowlink COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="100;100;" ID="Arrow_ID_1700598512" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1536516299632" TEXT="Aufgabe: Filter erweiterbar machen">
+<arrowlink COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="135;198;" ID="Arrow_ID_1700598512" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535937992260" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
@@ -32095,8 +32101,8 @@
 <node CREATED="1536367745114" ID="ID_945289619" MODIFIED="1536367753030" TEXT="explizit als bool-Flag">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367754089" ID="ID_649387933" MODIFIED="1536410400971" TEXT="im Filter-Funktor verstecken">
-<arrowlink COLOR="#d683c5" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" STARTARROW="None" STARTINCLINATION="142;0;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367754089" ID="ID_649387933" MODIFIED="1536516051923" TEXT="im Filter-Funktor verstecken">
+<arrowlink COLOR="#67ac9b" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" STARTARROW="None" STARTINCLINATION="142;0;"/>
 <icon BUILTIN="pencil"/>
 </node>
 </node>

From 5b84e0e823843ecaf8795077717ccb7815007ad0 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 22:12:55 +0200
Subject: [PATCH 078/178] TreeExplorer: remove spurous function template
 argument

In all practical use cases, this argument gets the same type as the
SRC template argument of _FunTraits
---
 src/lib/iter-tree-explorer.hpp | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index bd3007278..650e161f1 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -546,11 +546,10 @@ namespace lib {
         
         
         /** builder to create a nested/wrapping functor, suitably adapting the arguments */
-        template<typename IT>
         static auto
         adaptFunctor (FUN&& rawFunctor)
           {
-            return function<Res(IT&)> {ArgAdapter<IT>::wrap (forward<FUN> (rawFunctor))};
+            return function<Res(SRC&)> {ArgAdapter<SRC>::wrap (forward<FUN> (rawFunctor))};
           }
       };
     
@@ -642,9 +641,9 @@ namespace lib {
         
         template<typename FUN>
         Expander (SRC&& parentExplorer, FUN&& expandFunctor)
-          : SRC{move (parentExplorer)}                           // NOTE: slicing move to strip TreeExplorer (Builder)
-          , expandRoot_ {_FunTraits<FUN,SRC>    ::template adaptFunctor<SRC>     (forward<FUN> (expandFunctor))}  // adapt to accept SRC&
-          , expandChild_{_FunTraits<FUN,ResIter>::template adaptFunctor<ResIter> (forward<FUN> (expandFunctor))}  // adapt to accept RES&
+          : SRC{move (parentExplorer)}                   // NOTE: slicing move to strip TreeExplorer (Builder)
+          , expandRoot_ {_FunTraits<FUN,SRC>    ::adaptFunctor (forward<FUN> (expandFunctor))}  // adapt to accept SRC&
+          , expandChild_{_FunTraits<FUN,ResIter>::adaptFunctor (forward<FUN> (expandFunctor))}  // adapt to accept RES&
           , expansions_{}
           { }
         
@@ -828,7 +827,7 @@ namespace lib {
         template<typename FUN>
         Transformer (SRC&& dataSrc, FUN&& transformFunctor)
           : SRC{move (dataSrc)}                            // NOTE: slicing move to strip TreeExplorer (Builder)
-          , trafo_{_FunTraits<FUN,SRC>::template adaptFunctor<SRC> (forward<FUN> (transformFunctor))}
+          , trafo_{_FunTraits<FUN,SRC>::adaptFunctor (forward<FUN> (transformFunctor))}
           { }
         
         
@@ -909,7 +908,7 @@ namespace lib {
         template<typename FUN>
         Filter (SRC&& dataSrc, FUN&& filterFun)
           : SRC{move (dataSrc)}
-          , predicate_{_FunTraits<FUN,SRC>::template adaptFunctor<SRC> (forward<FUN> (filterFun))}
+          , predicate_{_FunTraits<FUN,SRC>::adaptFunctor (forward<FUN> (filterFun))}
           {
             pullFilter(); // initially pull to establish the invariant
           }
@@ -1133,16 +1132,13 @@ namespace lib {
           {
             static_assert_isPredicate<COND,SRC>();
             
-            using WrappedPredicate = typename _Filter::FilterPredicate;
-            
-            WrappedPredicate& firstClause = _Filter::predicate_;             // pick up the existing filter predicate
-            WrappedPredicate chainClause{_FunTraits<COND,SRC>::template adaptFunctor<SRC> (forward<COND> (additionalClause))};
-                                                                             // wrap the extension predicate in a similar way
             if (_Filter::isDisabled())
               _Filter::predicate_ = ACCEPT_ALL;
-                
-            _Filter::predicate_ = buildCombinedClause (firstClause, chainClause);
-            _Filter::pullFilter();                                           // pull to re-establish the Invariant
+            
+            _Filter::predicate_ = buildCombinedClause (_Filter::predicate_   // pick up the existing filter predicate
+                                                      ,_FunTraits<COND,SRC>::adaptFunctor (forward<COND> (additionalClause))
+                                                      );                   //   wrap the extension predicate in a similar way
+            _Filter::pullFilter();                                        //    then pull to re-establish the Invariant
           }
       };
     

From 0eec4d3b5f5d57c5e8057fae1c8fe9dac9935cfe Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 9 Sep 2018 23:44:32 +0200
Subject: [PATCH 079/178] ChainSearch: now use the improved TreeExplorer
 capabilities to address the shortcoming

...the solution built thus far was logically broken, since it retained the unfiltered
source sequence within the base layer. Thus it would backtrack into this unfiltered
sequence eventually.

The idea was to build a special treatment for attaching the first filter condition;
in fact the first one does not need to be added to the chain, but rather should be
planted directly into the base layer.

WIP: this is a solution draft, but does not work yet
  - when attaching the base layer, the filter is pulled twice
  - an overconstrained filter raises an Assertion failure
    (instead of just transitioning into exhausted state)
---
 src/lib/iter-chain-search.hpp | 40 +++++++++++++++++-------
 wiki/thinkPad.ichthyo.mm      | 59 +++++++++++++++++++++++------------
 2 files changed, 68 insertions(+), 31 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index e839d37cf..beeb69469 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -21,13 +21,17 @@
 */
 
 
-/** @file iter-cursor.hpp
- ** An iterator with the ability to switch direction.
- ** This wrapper relies on the ability of typical STL container iterators
- ** to work in both directions, similar to std::reverse_iterator.
- ** Yet it is a single, self-contained element and in compliance to the
- ** ["Lumiera Forward Iterator"](iter-adapter.hpp) concept. But it has
- ** the additional ability to [switch the working direction](\ref IterCursor<IT>::switchDir).
+/** @file iter-chain-search.hpp
+ ** Evaluation mechanism to apply a sequence of conditions onto a linear search.
+ ** This search algorithm is implemented on top of a tree expanding (monadic) filter pipeline,
+ ** to allow for backtracking. The intention is not to combine the individual conditions, but
+ ** rather to apply them one by one. After finding a match for the first condition, we'll search
+ ** for the next condition _starting at the position of the previous match_. In the most general
+ ** case, this immediate progression down the search chain might be too greedy; it could be that
+ ** we don't find a match for the next condition, but if we backtrack and first search further
+ ** on the previous condition, continuing with the search from that further position might
+ ** then lead to a match. Basically we have to try all combinations of all possible local
+ ** matches, to find a solution to satisfy the whole chain of conditions.
  ** 
  ** @see IterCursor_test
  ** @see iter-adapter.hpp
@@ -130,8 +134,12 @@ namespace iter {
       using Filter = typename _Trait::Filter;
       using Step   = typename _Trait::StepFunctor;
       
-      std::vector<Step> stepChain_;
+      /** @internal access embedded filter sub-Pipeline */
+      Filter& filter() { return *this; }
       
+      /** Storage for a sequence of filter configuration functors */
+      std::vector<Step> stepChain_;
+
     public:
       /** Build a chain-search mechanism based on the given source data sequence.
        * @remark iterators will be copied or moved as appropriate, while from a STL compliant
@@ -144,7 +152,10 @@ namespace iter {
       IterChainSearch (SEQ&& srcData)
         : _Base{_Trait::configurePipeline (forward<SEQ> (srcData)
                                           ,[this](Filter const& curr){ return configureFilterChain(curr); })}
-        { }
+        , stepChain_{}
+        {       // mark initial pristine state
+          _Base::disableFilter();
+        }
       
       // inherited default ctor and standard copy operations
       using _Base::_Base;
@@ -170,8 +181,14 @@ namespace iter {
       IterChainSearch&&                             >
       search (FUN&& configureSearchStep)
         {
-          stepChain_.emplace_back (Step{forward<FUN> (configureSearchStep)});
-          this->iterNext();    // establish invariant: expand to leaf and forward to first match
+          Step nextStep{forward<FUN> (configureSearchStep)};
+          
+          if (_Base::isDisabled())
+            this-> filter() = move (nextStep (*this));     // immediately apply first step
+          else                                            //
+            stepChain_.emplace_back (move (nextStep));   //   append all further steps into the chain...
+                                                        //    then establish invariant:
+          this->iterNext();                            //     expand to leaf and forward to first match
           return move(*this);
         }
       
@@ -200,6 +217,7 @@ namespace iter {
         {
         //////////////////////////////////////////////////////TODO logically broken. We need also to get rid of the current expansions, while retaining the current position
           stepChain_.clear();
+          _Base::disableFilter();
           return move(*this);
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 3ad762420..886e792a8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30834,8 +30834,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" ID="ID_650057716" MODIFIED="1536516299632" TEXT="Aufgabe: Filter erweiterbar machen">
-<linktarget COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="135;198;" ID="Arrow_ID_1700598512" SOURCE="ID_257876647" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
+<node COLOR="#338800" CREATED="1535893707036" FOLDED="true" ID="ID_650057716" MODIFIED="1536533157472" TEXT="Aufgabe: Filter erweiterbar machen">
+<linktarget COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="99;93;" ID="Arrow_ID_1700598512" SOURCE="ID_257876647" STARTARROW="None" STARTINCLINATION="-240;-19;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535893718194" ID="ID_177803317" MODIFIED="1535893743691" TEXT="analog zum Filter in den Itertools"/>
 <node CREATED="1535893752174" ID="ID_27030007" MODIFIED="1535893777011" TEXT="ggfs diesen dort abl&#xf6;sen">
@@ -31135,7 +31135,7 @@
 </node>
 <node COLOR="#435e98" CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536515953937" TEXT="Design-Probleme">
 <icon BUILTIN="go"/>
-<node COLOR="#338800" CREATED="1535919506060" ID="ID_1587572708" MODIFIED="1536516302968" TEXT="heterogene Pr&#xe4;dikat-Typen">
+<node COLOR="#338800" CREATED="1535919506060" FOLDED="true" ID="ID_1587572708" MODIFIED="1536533103811" TEXT="heterogene Pr&#xe4;dikat-Typen">
 <linktarget COLOR="#616f95" DESTINATION="ID_1587572708" ENDARROW="Default" ENDINCLINATION="49;-142;" ID="Arrow_ID_346491515" SOURCE="ID_1859852045" STARTARROW="None" STARTINCLINATION="-143;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535919549942" ID="ID_270773242" MODIFIED="1536409271272" TEXT="das zu Beginn verwendete Filter-Pr&#xe4;dikat legt den Typ fest">
@@ -31201,7 +31201,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536514257510" ID="ID_1708992184" MODIFIED="1536514273317" TEXT="2.L&#xf6;sung: type erasure auf dem Funktor">
+<node COLOR="#338800" CREATED="1536514257510" FOLDED="true" ID="ID_1708992184" MODIFIED="1536533099331" TEXT="2.L&#xf6;sung: type erasure auf dem Funktor">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536514274780" ID="ID_767166560" MODIFIED="1536514286353" TEXT="l&#xe4;uft auch auf doppelt wrappen hinaus">
 <icon BUILTIN="idea"/>
@@ -31211,7 +31211,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536409302285" ID="ID_913930564" MODIFIED="1536515894710" TEXT="extrem komplexe Typen">
+<node COLOR="#338800" CREATED="1536409302285" FOLDED="true" ID="ID_913930564" MODIFIED="1536533161341" TEXT="extrem komplexe Typen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536409316172" ID="ID_1468538186" MODIFIED="1536409340127" TEXT="Call-Traces sind nahezu unlesbar">
 <richcontent TYPE="NOTE"><html>
@@ -31327,13 +31327,13 @@
 <node COLOR="#338800" CREATED="1536451240308" ID="ID_241157222" MODIFIED="1536451273762" TEXT="den SRC-Parameter optional machen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1536451256034" ID="ID_645889218" MODIFIED="1536451285944" TEXT="FunTraits sind idempotent">
+<node COLOR="#338800" CREATED="1536451256034" FOLDED="true" ID="ID_645889218" MODIFIED="1536533082014" TEXT="FunTraits sind idempotent">
 <icon BUILTIN="button_ok"/>
 <icon BUILTIN="ksmiletris"/>
 <node CREATED="1536451303308" ID="ID_1343290323" MODIFIED="1536451313142" TEXT="man kann sie mit dem Funktor aufrufen -&gt; Sig"/>
 <node CREATED="1536451313778" ID="ID_439029617" MODIFIED="1536451336475" TEXT="man kann sie mit Sig aufrufen -&gt; Arg, Ret"/>
 </node>
-<node COLOR="#338800" CREATED="1536451345998" ID="ID_1853688774" MODIFIED="1536453357128" TEXT="Funktor-Konstruktor-Funktion">
+<node COLOR="#338800" CREATED="1536451345998" FOLDED="true" ID="ID_1853688774" MODIFIED="1536533080566" TEXT="Funktor-Konstruktor-Funktion">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536451365731" ID="ID_552359289" MODIFIED="1536451394878" TEXT="f&#xfc;r Aufruf aus dem Konstruktor-Kontext">
 <richcontent TYPE="NOTE"><html>
@@ -31373,7 +31373,7 @@
 </node>
 <node COLOR="#338800" CREATED="1536453317787" ID="ID_975974776" MODIFIED="1536514227734" TEXT="integrieren in...">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1536453326978" ID="ID_1071395763" MODIFIED="1536453367022" TEXT="Transformer">
+<node COLOR="#338800" CREATED="1536453326978" FOLDED="true" ID="ID_1071395763" MODIFIED="1536533075831" TEXT="Transformer">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536455906647" ID="ID_603515158" MODIFIED="1536455919470" TEXT="im Debugger beobachtet">
 <icon BUILTIN="button_ok"/>
@@ -31507,7 +31507,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536453419141" ID="ID_564310637" MODIFIED="1536515837769" TEXT="vereinfachen">
+<node COLOR="#338800" CREATED="1536453419141" FOLDED="true" ID="ID_564310637" MODIFIED="1536533077535" TEXT="vereinfachen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536515844176" ID="ID_1550470066" MODIFIED="1536515856523" TEXT="nested Functor f&#xe4;llt weg"/>
 <node CREATED="1536515857230" ID="ID_1234982362" MODIFIED="1536515868816" TEXT="zugeh&#xf6;rige Builder fallen weg"/>
@@ -31570,8 +31570,8 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1536516299632" TEXT="Aufgabe: Filter erweiterbar machen">
-<arrowlink COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="135;198;" ID="Arrow_ID_1700598512" STARTARROW="None" STARTINCLINATION="-412;-19;"/>
+<node COLOR="#338800" CREATED="1535893707036" ID="ID_257876647" MODIFIED="1536533157472" TEXT="Aufgabe: Filter erweiterbar machen">
+<arrowlink COLOR="#62909b" DESTINATION="ID_650057716" ENDARROW="Default" ENDINCLINATION="99;93;" ID="Arrow_ID_1700598512" STARTARROW="None" STARTINCLINATION="-240;-19;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1535899922873" ID="ID_1971708144" MODIFIED="1535937992260" TEXT="bestehende Aufrufe in EventMatch konsolidieren">
@@ -32093,26 +32093,45 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1536358257081" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536358349759" TEXT="den Basis-Layer eliminieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536533200019" TEXT="den Basis-Layer eliminieren">
 <linktarget COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" SOURCE="ID_1163131751" STARTARROW="None" STARTINCLINATION="30;44;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357900635" ID="ID_646733499" MODIFIED="1536358247780" TEXT="brauche einen &quot;leer&quot;-Status im Filter">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536357900635" ID="ID_646733499" MODIFIED="1536533192790" TEXT="brauche einen &quot;leer&quot;-Status im Filter">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536367745114" ID="ID_945289619" MODIFIED="1536367753030" TEXT="explizit als bool-Flag">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536367754089" ID="ID_649387933" MODIFIED="1536516051923" TEXT="im Filter-Funktor verstecken">
+<node CREATED="1536367754089" ID="ID_649387933" MODIFIED="1536533189307" TEXT="im Filter-Funktor verstecken">
 <arrowlink COLOR="#67ac9b" DESTINATION="ID_109911994" ENDARROW="Default" ENDINCLINATION="1326;0;" ID="Arrow_ID_1556921295" STARTARROW="None" STARTINCLINATION="142;0;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357917385" ID="ID_1615410357" MODIFIED="1536358250507" TEXT="wenn leer, dann direkt den Basis-Layer konfigurieren">
+<node CREATED="1536539140421" ID="ID_1097764973" MODIFIED="1536539198310" TEXT="1.L&#xf6;sungsansatz">
+<icon BUILTIN="button_cancel"/>
+<node COLOR="#338800" CREATED="1536357917385" ID="ID_1615410357" MODIFIED="1536539160556" TEXT="wenn leer, dann direkt den Basis-Layer konfigurieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536357952068" ID="ID_876149668" MODIFIED="1536539163737" TEXT="nur an die Kette anf&#xfc;gen, wenn nicht leer">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539178616" HGAP="1" ID="ID_708494808" MODIFIED="1536539195867" TEXT="defekt" VSHIFT="20">
+<icon BUILTIN="broken-line"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539306399" ID="ID_639133520" MODIFIED="1536539400436" TEXT="Basis-Layer wird zwei mal gepullt">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536539323716" ID="ID_1627599615" MODIFIED="1536539353260" TEXT="einmal beim direkten Rekonfigurieren"/>
+<node CREATED="1536539357408" ID="ID_834480997" MODIFIED="1536539373834" TEXT="dann nochmal generisch"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539386764" ID="ID_487266350" MODIFIED="1536539429112" TEXT="ersch&#xf6;pfter Iter bricht ab">
+<arrowlink COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="137;-5;" ID="Arrow_ID_1528021143" STARTARROW="None" STARTINCLINATION="-146;47;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357952068" ID="ID_876149668" MODIFIED="1536358251475" TEXT="nur an die Kette anf&#xfc;gen, wenn nicht leer">
-<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539286897" ID="ID_1288939799" MODIFIED="1536539421685" TEXT="overconstrained triggert Assertion">
+<linktarget COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="137;-5;" ID="Arrow_ID_1528021143" SOURCE="ID_487266350" STARTARROW="None" STARTINCLINATION="-146;47;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357967826" ID="ID_634133289" MODIFIED="1536358245365" TEXT="clearFilter()">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1536357973769" ID="ID_33678789" MODIFIED="1536358316984" TEXT="brauche Unterst&#xfc;tzung vom Expander">

From 2ca3e95e9e6595b50f1fcdd3449c7b97292f13fb Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 11 Sep 2018 04:04:32 +0200
Subject: [PATCH 080/178] ChainSearch: allow for overconstrained search

...which just turns the pipeline into exhausted state,
instead of raising an Assertion failure

The point is, expandChildren() does not guard itself,
since it _requires_ an non-empty iterator as precondition.
Thus, any function downstream, which invokes expandChildren(),
has to check and guard this call apropriately.

In the concrete case at hand we just stop adding further constraints
when the pipeline is already in exhausted state
---
 src/lib/iter-chain-search.hpp  | 19 +++++++++++--------
 src/lib/iter-tree-explorer.hpp |  3 +++
 wiki/thinkPad.ichthyo.mm       | 17 ++++++++++-------
 3 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index beeb69469..c662fb926 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -181,14 +181,17 @@ namespace iter {
       IterChainSearch&&                             >
       search (FUN&& configureSearchStep)
         {
-          Step nextStep{forward<FUN> (configureSearchStep)};
-          
-          if (_Base::isDisabled())
-            this-> filter() = move (nextStep (*this));     // immediately apply first step
-          else                                            //
-            stepChain_.emplace_back (move (nextStep));   //   append all further steps into the chain...
-                                                        //    then establish invariant:
-          this->iterNext();                            //     expand to leaf and forward to first match
+          if (not this->empty())
+            {
+              Step nextStep{forward<FUN> (configureSearchStep)};
+              
+              if (_Base::isDisabled())
+                this-> filter() = move (nextStep (*this));     // immediately apply first step
+              else                                            //
+                stepChain_.emplace_back (move (nextStep));   //   append all further steps into the chain...
+                                                            //    then establish invariant:
+              this->iterNext();                            //     expand to leaf and forward to first match
+            }
           return move(*this);
         }
       
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 650e161f1..8e73566a4 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -187,6 +187,7 @@ namespace lib {
         COR &      _core()       { return static_cast<COR&>       (*this); }
         COR const& _core() const { return static_cast<COR const&> (*this); }
         
+      protected:
         void
         __throw_if_empty()  const
           {
@@ -754,6 +755,7 @@ namespace lib {
         void
         iterNext()
           {
+            SRC::__throw_if_empty();
             SRC::expandChildren();
           }
       };
@@ -786,6 +788,7 @@ namespace lib {
           {
             if (shallExpand_)
               {
+                SRC::__throw_if_empty();
                 SRC::expandChildren();
                 shallExpand_ = false;
               }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 886e792a8..7a982f05f 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32106,8 +32106,6 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1536539140421" ID="ID_1097764973" MODIFIED="1536539198310" TEXT="1.L&#xf6;sungsansatz">
-<icon BUILTIN="button_cancel"/>
 <node COLOR="#338800" CREATED="1536357917385" ID="ID_1615410357" MODIFIED="1536539160556" TEXT="wenn leer, dann direkt den Basis-Layer konfigurieren">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -32120,17 +32118,22 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1536539323716" ID="ID_1627599615" MODIFIED="1536539353260" TEXT="einmal beim direkten Rekonfigurieren"/>
 <node CREATED="1536539357408" ID="ID_834480997" MODIFIED="1536539373834" TEXT="dann nochmal generisch"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536541001266" ID="ID_1480503625" MODIFIED="1536541008706" TEXT="in else-Zweig ziehen">
+<icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539386764" ID="ID_487266350" MODIFIED="1536539429112" TEXT="ersch&#xf6;pfter Iter bricht ab">
-<arrowlink COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="137;-5;" ID="Arrow_ID_1528021143" STARTARROW="None" STARTINCLINATION="-146;47;"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539386764" ID="ID_487266350" MODIFIED="1536631289616" TEXT="ersch&#xf6;pfter Iter bricht ab">
+<arrowlink COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="99;3;" ID="Arrow_ID_1528021143" STARTARROW="None" STARTINCLINATION="-35;27;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1536539286897" ID="ID_1288939799" MODIFIED="1536631289616" TEXT="overconstrained triggert Assertion">
+<linktarget COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="99;3;" ID="Arrow_ID_1528021143" SOURCE="ID_487266350" STARTARROW="None" STARTINCLINATION="-35;27;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536631251921" HGAP="51" ID="ID_588077559" MODIFIED="1536631280009" TEXT="sollte stattdessen leer werden" VSHIFT="23">
+<icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539286897" ID="ID_1288939799" MODIFIED="1536539421685" TEXT="overconstrained triggert Assertion">
-<linktarget COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="137;-5;" ID="Arrow_ID_1528021143" SOURCE="ID_487266350" STARTARROW="None" STARTINCLINATION="-146;47;"/>
-<icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357967826" ID="ID_634133289" MODIFIED="1536358245365" TEXT="clearFilter()">
 <icon BUILTIN="flag-yellow"/>

From 5b92f5cf749a109a9821b2def4096abbd95557ea Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 11 Sep 2018 04:25:08 +0200
Subject: [PATCH 081/178] ChainSearch: fix broken logic when configuring base
 layer

There is an asymetry, insofar the base layer configuration is
evaluated immediately, causing the MutableFilter to be reconfigured
and forwarded to the first match.

to the contrary, when configuring an additional layer, we just
add it to the chain, but then need to iterate once to cause
this configuration actually to be unfolded onto the stack
---
 src/lib/iter-chain-search.hpp | 11 ++++++-----
 wiki/thinkPad.ichthyo.mm      | 22 +++++++++++-----------
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index c662fb926..1d7c19596 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -186,11 +186,12 @@ namespace iter {
               Step nextStep{forward<FUN> (configureSearchStep)};
               
               if (_Base::isDisabled())
-                this-> filter() = move (nextStep (*this));     // immediately apply first step
-              else                                            //
-                stepChain_.emplace_back (move (nextStep));   //   append all further steps into the chain...
-                                                            //    then establish invariant:
-              this->iterNext();                            //     expand to leaf and forward to first match
+                this-> filter() = move (nextStep (*this));      // apply first step immediately
+              else
+                {
+                  stepChain_.emplace_back (move (nextStep)); //    append all further steps into the chain...
+                  this->iterNext();                         //     then establish invariant:
+                }                                          //      expand to leaf and forward to first match
             }
           return move(*this);
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7a982f05f..1b0738591 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31994,9 +31994,9 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536326576841" TEXT="treeExplorer-Konfiguration">
 <arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353107155" HGAP="33" ID="ID_1163131751" MODIFIED="1536361617044" TEXT="Problem: Basis-Layer" VSHIFT="37">
+<node COLOR="#338800" CREATED="1536353107155" HGAP="33" ID="ID_1163131751" MODIFIED="1536632469176" TEXT="Problem: Basis-Layer" VSHIFT="37">
 <arrowlink COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" STARTARROW="None" STARTINCLINATION="30;44;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536353117930" ID="ID_625995057" MODIFIED="1536353132265" TEXT="hinzugef&#xfc;gt f&#xfc;r &quot;leeren&quot; Zustand">
 <icon BUILTIN="info"/>
 </node>
@@ -32093,9 +32093,9 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1536358257081" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536533200019" TEXT="den Basis-Layer eliminieren">
+<node COLOR="#338800" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536632466623" TEXT="den Basis-Layer eliminieren">
 <linktarget COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" SOURCE="ID_1163131751" STARTARROW="None" STARTINCLINATION="30;44;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536357900635" ID="ID_646733499" MODIFIED="1536533192790" TEXT="brauche einen &quot;leer&quot;-Status im Filter">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536367745114" ID="ID_945289619" MODIFIED="1536367753030" TEXT="explizit als bool-Flag">
@@ -32112,19 +32112,19 @@
 <node COLOR="#338800" CREATED="1536357952068" ID="ID_876149668" MODIFIED="1536539163737" TEXT="nur an die Kette anf&#xfc;gen, wenn nicht leer">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539178616" HGAP="1" ID="ID_708494808" MODIFIED="1536539195867" TEXT="defekt" VSHIFT="20">
+<node COLOR="#435e98" CREATED="1536539178616" HGAP="1" ID="ID_708494808" MODIFIED="1536632461895" TEXT="defekt" VSHIFT="20">
 <icon BUILTIN="broken-line"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539306399" ID="ID_639133520" MODIFIED="1536539400436" TEXT="Basis-Layer wird zwei mal gepullt">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536539306399" ID="ID_639133520" MODIFIED="1536632455687" TEXT="Basis-Layer wird zwei mal gepullt">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536539323716" ID="ID_1627599615" MODIFIED="1536539353260" TEXT="einmal beim direkten Rekonfigurieren"/>
 <node CREATED="1536539357408" ID="ID_834480997" MODIFIED="1536539373834" TEXT="dann nochmal generisch"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536541001266" ID="ID_1480503625" MODIFIED="1536541008706" TEXT="in else-Zweig ziehen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536541001266" ID="ID_1480503625" MODIFIED="1536632457387" TEXT="in else-Zweig ziehen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536539386764" ID="ID_487266350" MODIFIED="1536631289616" TEXT="ersch&#xf6;pfter Iter bricht ab">
+<node COLOR="#338800" CREATED="1536539386764" ID="ID_487266350" MODIFIED="1536632452032" TEXT="ersch&#xf6;pfter Iter bricht ab">
 <arrowlink COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="99;3;" ID="Arrow_ID_1528021143" STARTARROW="None" STARTINCLINATION="-35;27;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From df7a9492b7aab8b786200c54fdbf30b1b53f5640 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 12 Sep 2018 03:52:07 +0200
Subject: [PATCH 082/178] TreeExplorer: helper function so support
 ChainSearch::clearFilter()

build a special feature into the Explorer component of TreeExplorer,
causing it to "lock into" the current child sequence and discard
all previous sequences from the stack of child explorations
---
 src/lib/iter-stack.hpp                    |  6 +++
 src/lib/iter-tree-explorer.hpp            | 13 ++++++
 tests/library/iter-tree-explorer-test.cpp | 48 +++++++++++++++++++++++
 wiki/thinkPad.ichthyo.mm                  | 25 ++++++++----
 4 files changed, 84 insertions(+), 8 deletions(-)

diff --git a/src/lib/iter-stack.hpp b/src/lib/iter-stack.hpp
index 39220f291..0e33ed15c 100644
--- a/src/lib/iter-stack.hpp
+++ b/src/lib/iter-stack.hpp
@@ -155,6 +155,12 @@ namespace lib {
           return topElement;
         }
       
+      void
+      clear()
+        {
+          this->stateCore().clear();
+        }
+      
       
       /* == diagnostics == */
       
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 8e73566a4..519310889 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -674,6 +674,19 @@ namespace lib {
             return expansions_.size();
           }
         
+        /** lock into the current child sequence.
+         * This special feature turns the current child sequence into the new root,
+         * thereby discarding everything else in the expansions stack, including the
+         * original root sequence.
+         */
+        void
+        rootCurrent()
+          {
+            if (not hasChildren()) return;
+            static_cast<SRC&> (*this) = move (*expansions_);
+            expansions_.clear();
+          }
+        
         
       public: /* === Iteration control API for IterableDecorator === */
         
diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 418a33f2f..84f53459b 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -272,6 +272,7 @@ namespace test{
           verify_wrappedIterator();
           
           verify_expandOperation();
+          verify_expand_rootCurrent();
           verify_transformOperation();
           verify_combinedExpandTransform();
           verify_scheduledExpansion();
@@ -486,6 +487,53 @@ namespace test{
         }
       
       
+      /** @test special feature of the Expander to lock into current child sequence.
+       * This feature was added to support a specific use-case in the IterChainSearch component.
+       * After expanding several levels deep into a tree, it allows to turn the _current child sequence_
+       * into a new root sequence and discard the whole rest of the tree, including the original root sequence.
+       * It is implemented by moving the current child sequence down into the root sequence. We demonstrate
+       * this behaviour with the simple standard setup from #verify_expandOperation()
+       */
+      void
+      verify_expand_rootCurrent()
+        {
+          auto tree = treeExplore(CountDown{25})
+                        .expand([](uint j){ return CountDown{j-1}; });
+          
+          CHECK (materialise(tree) == "25-24-23-22-21-20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1");
+          
+          CHECK (0 == tree.depth());
+          CHECK (25 == *tree);
+          ++tree;
+          ++tree;
+          ++tree;
+          ++tree;
+          CHECK (21 == *tree);
+          tree.expandChildren();
+          CHECK (1 == tree.depth());
+          ++tree;
+          ++tree;
+          ++tree;
+          ++tree;
+          ++tree;
+          CHECK (15 == *tree);
+          tree.expandChildren();
+          ++tree;
+          ++tree;
+          CHECK (2 == tree.depth());
+          CHECK (materialise(tree) == "12-11-10-9-8-7-6-5-4-3-2-1-"                          // this is the level-2 child sequence
+                                      "14-13-12-11-10-9-8-7-6-5-4-3-2-1-"                    // ...returning to the rest of the level-1 sequence
+                                      "20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1"); // ...followed by the rest of the original root sequence
+          CHECK (12 == *tree);
+          
+          tree.rootCurrent();
+          CHECK (12 == *tree);
+          CHECK (materialise(tree) == "12-11-10-9-8-7-6-5-4-3-2-1");  // note: level-2 continues unaltered, but level-1 and the original root are gone.
+          CHECK (0 == tree.depth());
+        }
+      
+      
+      
       /** @test pipe each result through a transformation function.
        * The _transforming iterator_ is added as a decorator, wrapping the original iterator,
        * TreeEplorer or state core. As you'd expect, the given functor is required to accept
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 1b0738591..4ae9bf45f 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31132,6 +31132,18 @@
 </node>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1536713790340" ID="ID_1436344296" MODIFIED="1536716851593" TEXT="Explorer: rootCurrent()">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536713813792" ID="ID_255912594" MODIFIED="1536713903337" TEXT="Hilfsmittel f&#xfc;r den IterChainSearch">
+<linktarget COLOR="#5c8eb4" DESTINATION="ID_255912594" ENDARROW="Default" ENDINCLINATION="1465;0;" ID="Arrow_ID_1700114612" SOURCE="ID_1097583555" STARTARROW="None" STARTINCLINATION="798;71;"/>
+</node>
+<node CREATED="1536713912051" ID="ID_1531296292" MODIFIED="1536714003659" TEXT="Verhalten">
+<icon BUILTIN="info"/>
+<node CREATED="1536713937303" ID="ID_1307568676" MODIFIED="1536713956169" TEXT="macht die aktuelle (Kind)-Sequenz zur Root-Sequenz"/>
+<node CREATED="1536713956780" ID="ID_940104678" MODIFIED="1536713969199" TEXT="verwirft den gesamten Inhalt des bestehendn Stack"/>
+<node CREATED="1536713969931" ID="ID_1439776917" MODIFIED="1536714013625" TEXT="verwirft damit auch die urspr&#xfc;ngliche Root-Sequenz"/>
+</node>
+</node>
 </node>
 <node COLOR="#435e98" CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536515953937" TEXT="Design-Probleme">
 <icon BUILTIN="go"/>
@@ -32141,14 +32153,11 @@
 <linktarget COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" SOURCE="ID_698525366" STARTARROW="None" STARTINCLINATION="106;0;"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357986087" ID="ID_1097583555" MODIFIED="1536358230631" TEXT="rootCurrent()">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536358193211" ID="ID_601406114" MODIFIED="1536358229327" TEXT="hebt aktuelle Sequenz auf Root-Level">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536358204137" ID="ID_1724606451" MODIFIED="1536358228591" TEXT="verwirft den sonstigen Stack komplett">
-<icon BUILTIN="flag-yellow"/>
-</node>
+<node COLOR="#338800" CREATED="1536357986087" ID="ID_1097583555" MODIFIED="1536716860209" TEXT="rootCurrent()">
+<arrowlink COLOR="#5c8eb4" DESTINATION="ID_255912594" ENDARROW="Default" ENDINCLINATION="1465;0;" ID="Arrow_ID_1700114612" STARTARROW="None" STARTINCLINATION="798;71;"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536358193211" ID="ID_601406114" MODIFIED="1536716881154" TEXT="hebt aktuelle Sequenz auf Root-Level"/>
+<node COLOR="#338800" CREATED="1536358204137" ID="ID_1724606451" MODIFIED="1536716878774" TEXT="verwirft den sonstigen Stack komplett"/>
 </node>
 </node>
 </node>

From 10f21f77f829b754e946cd4a1708ec900f4a95ec Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 12 Sep 2018 04:17:49 +0200
Subject: [PATCH 083/178] ChainSearch: resolve the problems and get basic
 functionality to work

with the augmented TreeExplorer, we're now able to get rid of the
spurious base layer, and we're able to discard the filter and
continue with the unfiltered sequence starting from current position.
---
 src/lib/iter-chain-search.hpp            |  6 ++--
 tests/library/iter-chain-search-test.cpp | 15 +++++++--
 wiki/thinkPad.ichthyo.mm                 | 39 +++++++++++++-----------
 3 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 1d7c19596..b1eec1949 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -213,14 +213,14 @@ namespace iter {
       
       /** drop all search condition frames.
        * @remark the filter chain becomes empty,
-       *         passing through the unaltered
-       *         source sequence
+       *         passing through the reset of the
+       *         source sequence unaltered
        */
       IterChainSearch&&
       clearFilter()
         {
-        //////////////////////////////////////////////////////TODO logically broken. We need also to get rid of the current expansions, while retaining the current position
           stepChain_.clear();
+          _Base::rootCurrent();
           _Base::disableFilter();
           return move(*this);
         }
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index 98ede36de..e1688776f 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -132,7 +132,12 @@ namespace test{
       
       
       
-      /** @test verify the
+      /** @test verify consecutive application of several functors on the underlying filter.
+       * In the general case, each step in the chain is a function working on a copy of the
+       * current filter state. Since each such step configures its own copy of the complete
+       * pipeline, it may reconfigure this filter pipeline in arbitrary ways. After exhausting
+       * the last layer, the evaluation returns to the previous layer, but immediately re-applies
+       * the configuration step on the then next element.
        */
       void
       chainedIteration ()
@@ -141,7 +146,13 @@ namespace test{
       
       
       
-      /** @test verify the
+      /** @test verify a complex search with backtracking.
+       * This becomes relevant when a given search condition can be "too greedy" for the
+       * complete chain to succeed. Most notably this is the case when the search is fundamentally
+       * reconfigured in some steps, e.g. by switching the search orientation. To demonstrate this,
+       * we use a "gear switching" iterator, which allows us to reverse the direction and to search
+       * backwards from the current position. We configure the second condition in the chain such
+       * that it can not succeed when starting from the first match on the first condition
        */
       void
       backtracking ()
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4ae9bf45f..ea5dc9102 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31132,7 +31132,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536713790340" ID="ID_1436344296" MODIFIED="1536716851593" TEXT="Explorer: rootCurrent()">
+<node COLOR="#338800" CREATED="1536713790340" FOLDED="true" ID="ID_1436344296" MODIFIED="1536717497148" TEXT="Explorer: rootCurrent()">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536713813792" ID="ID_255912594" MODIFIED="1536713903337" TEXT="Hilfsmittel f&#xfc;r den IterChainSearch">
 <linktarget COLOR="#5c8eb4" DESTINATION="ID_255912594" ENDARROW="Default" ENDINCLINATION="1465;0;" ID="Arrow_ID_1700114612" SOURCE="ID_1097583555" STARTARROW="None" STARTINCLINATION="798;71;"/>
@@ -31686,8 +31686,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1536329770737" TEXT="Implementierung">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536329750864" TEXT="Kern: Explore-Mechanismus">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536717634181" TEXT="Kern: Explore-Mechanismus">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018644456" ID="ID_477475522" MODIFIED="1536329729458" TEXT="Signatur der Explore-Funktion festlegen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -32001,12 +32001,12 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536018929138" TEXT="Pipeline konstruieren">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536326576841" TEXT="treeExplorer-Konfiguration">
+<node COLOR="#338800" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536717626552" TEXT="Pipeline konstruieren">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536717484882" TEXT="treeExplorer-Konfiguration">
 <arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
-<icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1536353107155" HGAP="33" ID="ID_1163131751" MODIFIED="1536632469176" TEXT="Problem: Basis-Layer" VSHIFT="37">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536353107155" FOLDED="true" HGAP="33" ID="ID_1163131751" MODIFIED="1536717615755" TEXT="Problem: Basis-Layer" VSHIFT="37">
 <arrowlink COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" STARTARROW="None" STARTINCLINATION="30;44;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536353117930" ID="ID_625995057" MODIFIED="1536353132265" TEXT="hinzugef&#xfc;gt f&#xfc;r &quot;leeren&quot; Zustand">
@@ -32019,8 +32019,8 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353280436" ID="ID_967254721" MODIFIED="1536353333302" TEXT="Problem: clearFilter()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536353280436" FOLDED="true" ID="ID_967254721" MODIFIED="1536717612628" TEXT="Problem: clearFilter()">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536353286739" ID="ID_1451254899" MODIFIED="1536353295077" TEXT="bauchen wir das &#xfc;berhaupt">
 <icon BUILTIN="help"/>
 <node CREATED="1536353310976" ID="ID_809196267" MODIFIED="1536353322688" TEXT="&quot;Filter komplett abschalten&quot;">
@@ -32030,7 +32030,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536353335500" ID="ID_698525366" MODIFIED="1536358327376" TEXT="mu&#xdf; Stack der partiellen Auswertungen verwerfen">
+<node COLOR="#338800" CREATED="1536353335500" ID="ID_698525366" MODIFIED="1536717475219" TEXT="mu&#xdf; Stack der partiellen Auswertungen verwerfen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32045,7 +32045,10 @@
   </body>
 </html></richcontent>
 <arrowlink COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" STARTARROW="None" STARTINCLINATION="106;0;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1536717586774" ID="ID_47823025" MODIFIED="1536717611106" TEXT="mit HIlfsfunktion im TreeExplorer / Expander einfach zu implementieren">
+<icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
@@ -32105,7 +32108,7 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1536358257081" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1536357891412" ID="ID_942897075" MODIFIED="1536632466623" TEXT="den Basis-Layer eliminieren">
+<node COLOR="#338800" CREATED="1536357891412" FOLDED="true" ID="ID_942897075" MODIFIED="1536717539462" TEXT="den Basis-Layer eliminieren">
 <linktarget COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" SOURCE="ID_1163131751" STARTARROW="None" STARTINCLINATION="30;44;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536357900635" ID="ID_646733499" MODIFIED="1536533192790" TEXT="brauche einen &quot;leer&quot;-Status im Filter">
@@ -32140,15 +32143,15 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536539286897" ID="ID_1288939799" MODIFIED="1536631289616" TEXT="overconstrained triggert Assertion">
+<node COLOR="#338800" CREATED="1536539286897" FOLDED="true" ID="ID_1288939799" MODIFIED="1536717548060" TEXT="overconstrained triggert Assertion">
 <linktarget COLOR="#c5789c" DESTINATION="ID_1288939799" ENDARROW="Default" ENDINCLINATION="99;3;" ID="Arrow_ID_1528021143" SOURCE="ID_487266350" STARTARROW="None" STARTINCLINATION="-35;27;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536631251921" HGAP="51" ID="ID_588077559" MODIFIED="1536631280009" TEXT="sollte stattdessen leer werden" VSHIFT="23">
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357967826" ID="ID_634133289" MODIFIED="1536358245365" TEXT="clearFilter()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536357967826" FOLDED="true" ID="ID_634133289" MODIFIED="1536717583623" TEXT="clearFilter()">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536357973769" ID="ID_33678789" MODIFIED="1536358316984" TEXT="brauche Unterst&#xfc;tzung vom Expander">
 <linktarget COLOR="#60a2d5" DESTINATION="ID_33678789" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_1930258825" SOURCE="ID_698525366" STARTARROW="None" STARTINCLINATION="106;0;"/>
 <icon BUILTIN="messagebox_warning"/>
@@ -32200,8 +32203,8 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536329779734" TEXT="simpleSearch()">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536717648741" TEXT="simpleSearch()">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018544936" ID="ID_1750921303" MODIFIED="1536018557580" TEXT="chainedIteration()">
 <icon BUILTIN="flag-yellow"/>

From 29d2c151b3e6137d93faca2d8fff53c73d05b689 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 13 Sep 2018 15:48:51 +0200
Subject: [PATCH 084/178] ChainSearch: add builder function just to replace the
 filter

Up to now, we had a very simplistic configuration option just
to search for a match, and we had the complete full-blown reconfiguration
builder option, which accepts a functor to work on and reconfigure the
embedded Filter chain.

It occurred to me that in many cases you'd rather want some intermediary
level of flexibility: you want to replace the filter predicate entirely
by some explicitly given functor, yet you don't need the full ability
to re-shape the Filter chain as a whole. In fact the intended use case
for IterChainSearch (which is the EventLog I am about to augment with
backtracking capabilities) will only ever need that intermediate level.


Thus wer're adding this intermediary level of configurability now.

The only twist is that doing so requires us to pass an "arbitrary function like thing"
(captured by universal reference) through a "layer of lambdas". Which means,
we have to capture an "arbitrary thingie" by value.

Fortunately, as I just found out today, C++14 allows something which comes
close to that requirement: the value capture of a lambda is allowe to have
an intialiser. Which means, we can std::forward into the value captured
by the intermediary lambda. I just hope I never need to know or understand
the actual type this captured "value" takes on.... :-)
---
 src/lib/iter-chain-search.hpp            | 33 +++++++++++-----
 tests/library/iter-chain-search-test.cpp | 17 ++++++--
 wiki/thinkPad.ichthyo.mm                 | 50 ++++++++++++++++++++++++
 3 files changed, 88 insertions(+), 12 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index b1eec1949..3de00ddea 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -177,9 +177,8 @@ namespace iter {
        *       it is _possible_ to build a step which _extends_ or sharpens the preceding condition.
        */
       template<typename FUN>
-                                          disable_if<is_convertible<FUN, Value>,
-      IterChainSearch&&                             >
-      search (FUN&& configureSearchStep)
+      IterChainSearch&&
+      addStep (FUN&& configureSearchStep)
         {
           if (not this->empty())
             {
@@ -196,18 +195,34 @@ namespace iter {
           return move(*this);
         }
       
+      /** attach additional search with the given filter predicate.
+       *  After successfully searching for all the conditions currently in the filter chain,
+       *  the embedded iterator will finally be pulled until matching the given target value.
+       * @remarks adds a new layer on the stack of search conditions with a _copy_ of the
+       *  previously used iterator, and installs the given filter predicate therein.
+       */
+      template<typename FUN>
+                                          disable_if<is_convertible<FUN, Value>,
+      IterChainSearch&&                             >
+      search (FUN&& filterPredicate)
+        {
+          addStep ([predicate{forward<FUN> (filterPredicate)}]
+                   (Filter filter)      // note: filter taken by value
+                     {
+                       filter.setNewFilter (predicate);
+                       return filter;   // return copy of the original state with changed filter
+                     });
+          return move(*this);
+        }
+      
       /** attach additional direct search for a given value.
        *  After successfully searching for all the conditions currently in the filter chain,
-       *  the underlying iterator will finally be pulled until matching the given target value.
+       *  the embedded iterator will finally be pulled until matching the given target value.
        */
       IterChainSearch&&
       search (Value target)
         {
-          search ([=](Filter filter)      // note: filter taken by value
-                    {
-                      filter.setNewFilter ([target](Value const& currVal) { return currVal == target; });
-                      return filter;   // return copy of the original state with changed filter
-                    });
+          search ([target](Value const& currVal) { return currVal == target; });
           return move(*this);
         }
       
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index e1688776f..a62b165b6 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -45,6 +45,7 @@ namespace test{
   using ::Test;
   using util::join;
   using util::isnil;
+  using util::startsWith;
   using util::isSameObject;
   using std::vector;
   using std::string;
@@ -76,6 +77,14 @@ namespace test{
     cout << "typeof( " << STRINGIFY(_TY_) << " )= " << lib::meta::typeStr<_TY_>() <<endl;
 #define SHOW_EXPR(_XX_) \
     cout << "Probe " << STRINGIFY(_XX_) << " ? = " << _XX_ <<endl;
+
+    /** Diagnostic helper: join all the elements from a _copy_ of the iterator */
+    template<class II>
+    inline string
+    materialise (II&& ii)
+    {
+      return util::join (std::forward<II> (ii), "-");
+    }
 ///////////////////////////////////////////////////TODO WIP
   
   
@@ -108,9 +117,6 @@ namespace test{
                           .search("bacon")
                           .search("tomato");
           
-///////////////////////////////////////////////////TODO WIP
-          cout << "search[0]=" <<*search<<endl;
-///////////////////////////////////////////////////TODO WIP
           CHECK (search);
           CHECK (not isnil(search));
           CHECK ("tomato" == *search);
@@ -142,6 +148,11 @@ namespace test{
       void
       chainedIteration ()
         {
+          auto search = chainSearch(SPAM)
+                          .search([](string const& str){ return startsWith (str, "s"); });
+///////////////////////////////////////////////////TODO WIP
+          cout << materialise (search) <<endl;
+///////////////////////////////////////////////////TODO WIP
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index ea5dc9102..c28f4cd37 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32163,6 +32163,56 @@
 <node COLOR="#338800" CREATED="1536358204137" ID="ID_1724606451" MODIFIED="1536716878774" TEXT="verwirft den sonstigen Stack komplett"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536792181982" ID="ID_548701484" MODIFIED="1536792260764" TEXT="search direkt per Pr&#xe4;dikat">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...d.h. direkt das Pr&#228;dikat, und nicht eine Funktion, die den Filter konfiguriert
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536792241949" ID="ID_613611906" MODIFIED="1536792249583" TEXT="setzt direkt nur ein neues Pr&#xe4;dikat"/>
+<node CREATED="1536792250124" ID="ID_10955924" MODIFIED="1536792257390" TEXT="spart viel Syntax ein">
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#435e98" CREATED="1536845264898" ID="ID_1033092941" MODIFIED="1536845289109" TEXT="Problem: capture forward">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1536845290596" ID="ID_1184113483" MODIFIED="1536845467915" TEXT="Lamda soll eine &quot;universelle referenz&quot; capturen">
+<icon BUILTIN="yes"/>
+</node>
+<node COLOR="#338800" CREATED="1536845309386" ID="ID_1593606355" MODIFIED="1536845460398" TEXT="Ausweg: forward-into captured value">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1536845374585" ID="ID_794602132" LINK="https://stackoverflow.com/a/20669290" MODIFIED="1536845438985" TEXT="geht seit C++14"/>
+<node CREATED="1536845439219" ID="ID_372370252" MODIFIED="1536845455950" TEXT="nur Eclipse / CDT mault herum">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1536845496960" ID="ID_1490455562" MODIFIED="1536845539474" TEXT="und deshalb...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...habe ich noch gar nicht gemerkt, da&#223; das geht,
+    </p>
+    <p>
+      und manchen komischen Workaround implementiert.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1536845594971" ID="ID_1942437093" MODIFIED="1536845602373" TEXT="Eclipse updaten?">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">

From 8aae789b82237f5df3ec1c4eba7278740b2bf51e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 13 Sep 2018 17:50:53 +0200
Subject: [PATCH 085/178] ChainSearch: test case to scrutinise chained filter
 reconfiguration

...and TADAA ... there we get an insidious bug:

we capture *this by reference into the expansion functor,
and then we move *this away, out from the builder into the target....
---
 tests/library/iter-chain-search-test.cpp | 12 ++++++++++++
 wiki/thinkPad.ichthyo.mm                 | 16 ++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index a62b165b6..f8cca854a 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -152,6 +152,18 @@ namespace test{
                           .search([](string const& str){ return startsWith (str, "s"); });
 ///////////////////////////////////////////////////TODO WIP
           cout << materialise (search) <<endl;
+///////////////////////////////////////////////////TODO WIP
+          CHECK (search);
+          
+          search.addStep([](auto filter)
+                            {
+                              string currVal = *filter;
+                              filter.setNewFilter ([=](string const& val){
+                                  return val != currVal; });
+                              return filter;
+                            });
+///////////////////////////////////////////////////TODO WIP
+          cout << materialise (search) <<endl;
 ///////////////////////////////////////////////////TODO WIP
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c28f4cd37..dddd2f1ce 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31796,6 +31796,18 @@
 <linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="button_ok"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536857187385" ID="ID_1180686110" MODIFIED="1536857230548" TEXT="Bug! Referenz auf *this">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1536857213605" ID="ID_1051501156" MODIFIED="1536857238050" TEXT="...und dann moved man *this aus dem Builder!!!">
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1536857284075" ID="ID_887891479" MODIFIED="1536857344032" TEXT="brauche *this...">
+<icon BUILTIN="info"/>
+<node CREATED="1536857289235" ID="ID_1909570040" MODIFIED="1536857313452" TEXT="in configureFilterChain"/>
+<node CREATED="1536857326814" ID="ID_149310473" MODIFIED="1536857328426" TEXT="this-&gt;depth()"/>
+<node CREATED="1536857336620" ID="ID_1691329557" MODIFIED="1536857340040" TEXT="this-&gt;stepChain_"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536326484790" TEXT="Schritte als Funktoren">
 <icon BUILTIN="button_ok"/>
@@ -32163,7 +32175,7 @@
 <node COLOR="#338800" CREATED="1536358204137" ID="ID_1724606451" MODIFIED="1536716878774" TEXT="verwirft den sonstigen Stack komplett"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536792181982" ID="ID_548701484" MODIFIED="1536792260764" TEXT="search direkt per Pr&#xe4;dikat">
+<node COLOR="#338800" CREATED="1536792181982" ID="ID_548701484" MODIFIED="1536846067609" TEXT="search direkt per Pr&#xe4;dikat">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32175,7 +32187,7 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536792241949" ID="ID_613611906" MODIFIED="1536792249583" TEXT="setzt direkt nur ein neues Pr&#xe4;dikat"/>
 <node CREATED="1536792250124" ID="ID_10955924" MODIFIED="1536792257390" TEXT="spart viel Syntax ein">
 <icon BUILTIN="idea"/>

From 09d923db068491f33d63864e473aadd3cd7c9ee6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 14 Sep 2018 23:55:42 +0200
Subject: [PATCH 086/178] TreeExplorer: add the ability to inject a custom
 defined layer

this is an rather obvious extension to the TreeExplorer framework.
In some cases, client code wants to define its own very specific
processing layers, beyond of what can be done with filters and
transformers. Obviously, writing such a custom layer requires
intimate knowledge about the internals of TreeExplorer

the actual use case prompting this extension is IterChainSearch;
it turned out that the original design can not be implemented,
unless the resulting object is non-copyable (which violates
the basic traits of a TreeExplorer based pipeline).
---
 src/lib/iter-tree-explorer.hpp | 26 +++++++++++++++++++++++++-
 wiki/thinkPad.ichthyo.mm       | 30 ++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 519310889..47d9a9685 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -46,7 +46,7 @@
  ** calculations with exception handling but also simple data structures like lists or trees). The key point with any
  ** monad is the ability to _bind a function_ into the monad; this function will work on the _contained base values_
  ** and produce a modified new monad instance. In the simple case of a list, "binding" a function basically means
- ** to _map the function onto_ the elements in the list.
+ ** to _map the function onto_ the elements in the list. (actually it means the `flatMap` operation)
  ** 
  ** ## Rationale
  ** The primary benefit of using the monad pattern is to separate the transforming operation completely from
@@ -1510,6 +1510,30 @@ namespace lib {
         }
       
       
+      
+      /** builder function to attach a _custom extension layer._
+       * Any template in compliance with the general construction scheme can be injected through the template parameter.
+       * - it must take a first template parameter SRC and inherit from this source iterator
+       * - towards layers on top, it must behave like a _state core,_ either by redefining the state core API functions,
+       *   as defined by \ref IterStateWrapper, or by inheriting them from a lower layer.
+       * - it is bound to play well with the other layers; especially it needs to be aware of `expandChildren()` calls,
+       *   which for the consumer side behave like `iterNext()` calls. If a layer needs to do something special for
+       *   `iterNext()`, it needs to perform a similar action for `expandChildren()`.
+       * - it must be behave like a default-constructible, copyable value object
+       * @return augmented TreeExplorer, incorporating and adpting the injected layer
+       */
+      template<template<class> class LAY>
+      auto
+      processingLayer()
+        {
+          using ResCore = LAY<SRC>;
+          using ResIter = typename _DecoratorTraits<ResCore>::SrcIter;
+          
+          return TreeExplorer<ResIter> (ResCore {move(*this)});
+        }
+      
+      
+      
       /** _terminal builder_ to package the processing pipeline as IterSource.
        * Invoking this function moves the whole iterator compound, as assembled by the preceding
        * builder calls, into heap allocated memory and returns an [iterator front-end](\ref IterExploreSource).
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index dddd2f1ce..4f61fb890 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31144,6 +31144,36 @@
 <node CREATED="1536713969931" ID="ID_1439776917" MODIFIED="1536714013625" TEXT="verwirft damit auch die urspr&#xfc;ngliche Root-Sequenz"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958962984" ID="ID_686602920" MODIFIED="1536959121719" TEXT="custom Layer erm&#xf6;glichen">
+<linktarget COLOR="#61afb3" DESTINATION="ID_686602920" ENDARROW="Default" ENDINCLINATION="-230;613;" ID="Arrow_ID_1710661685" SOURCE="ID_519507996" STARTARROW="None" STARTINCLINATION="1241;-1305;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958972703" ID="ID_661166644" MODIFIED="1536959071081" TEXT="generische Builder-Funktion">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...ist einfach und offensichtlich;
+    </p>
+    <p>
+      ohnehin laufen schon ziemlich alle konkreten Layer-Builder nach einem Schema-F
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958979046" ID="ID_700334374" MODIFIED="1536959005539" TEXT="Typ per Template-Parameter &#xfc;bergeben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958994212" ID="ID_1735239890" MODIFIED="1536959004851" TEXT="flexible zus&#xe4;tzliche Argumente">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536959023376" ID="ID_928142688" MODIFIED="1536959037879" TEXT="Test: durch IterChainSearch">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node COLOR="#435e98" CREATED="1536409170928" ID="ID_1850744645" MODIFIED="1536515953937" TEXT="Design-Probleme">
 <icon BUILTIN="go"/>

From 767156e912639761ea7de8eb1893667e450c0516 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 16 Sep 2018 01:04:00 +0200
Subject: [PATCH 087/178] TreeExplorer: unit test coverage for injected custom
 layer

---
 tests/library/iter-tree-explorer-test.cpp | 45 +++++++++++++++++++++++
 wiki/thinkPad.ichthyo.mm                  | 26 ++++++++-----
 2 files changed, 61 insertions(+), 10 deletions(-)

diff --git a/tests/library/iter-tree-explorer-test.cpp b/tests/library/iter-tree-explorer-test.cpp
index 84f53459b..cb8fc8470 100644
--- a/tests/library/iter-tree-explorer-test.cpp
+++ b/tests/library/iter-tree-explorer-test.cpp
@@ -275,6 +275,7 @@ namespace test{
           verify_expand_rootCurrent();
           verify_transformOperation();
           verify_combinedExpandTransform();
+          verify_customProcessingLayer();
           verify_scheduledExpansion();
           verify_FilterIterator();
           verify_FilterChanges();
@@ -720,6 +721,50 @@ namespace test{
         }
       
       
+      /**
+       * demo of a custom processing layer
+       * interacting directly with the iteration mechanism.
+       * @note we can assume `SRC` is itself a Lumiera Iterator
+       */
+      template<class SRC>
+      struct MagicTestRubbish
+        : public SRC
+        {
+          using SRC::SRC;
+          
+          void
+          iterNext()
+            {
+              ++(*this);
+              if (*this)
+                ++(*this);
+            }
+        };
+      
+      /** @test extension point to inject a client-defined custom processing layer
+       * This special builder function allows to install a template, which needs to wrap
+       * a source iterator and expose a _state core like_ interface. We demonstrate this
+       * extension mechanism here by defining a processing layer which skips each other element.
+       */
+      void
+      verify_customProcessingLayer()
+        {
+          CHECK (materialise(
+                    treeExplore(CountDown{7})
+                      .processingLayer<MagicTestRubbish>()
+                )
+                == "7-5-3-1");
+          
+          CHECK (materialise(
+                    treeExplore(CountDown{7})
+                      .transform([](uint v){ return 2*v; })
+                      .processingLayer<MagicTestRubbish>()
+                      .filter([](int v){ return v % 3; })
+                )
+                == "14-10-2");
+        }
+      
+      
       
       /** @test child expansion can be scheduled to happen on next iteration.
        * As such, _"child expansion"_ happens right away, thereby consuming a node
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4f61fb890..f1510183b 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31144,10 +31144,10 @@
 <node CREATED="1536713969931" ID="ID_1439776917" MODIFIED="1536714013625" TEXT="verwirft damit auch die urspr&#xfc;ngliche Root-Sequenz"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958962984" ID="ID_686602920" MODIFIED="1536959121719" TEXT="custom Layer erm&#xf6;glichen">
+<node COLOR="#338800" CREATED="1536958962984" FOLDED="true" ID="ID_686602920" MODIFIED="1537052569433" TEXT="custom Layer erm&#xf6;glichen">
 <linktarget COLOR="#61afb3" DESTINATION="ID_686602920" ENDARROW="Default" ENDINCLINATION="-230;613;" ID="Arrow_ID_1710661685" SOURCE="ID_519507996" STARTARROW="None" STARTINCLINATION="1241;-1305;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958972703" ID="ID_661166644" MODIFIED="1536959071081" TEXT="generische Builder-Funktion">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536958972703" ID="ID_661166644" MODIFIED="1537050781115" TEXT="generische Builder-Funktion">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31162,16 +31162,22 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958979046" ID="ID_700334374" MODIFIED="1536959005539" TEXT="Typ per Template-Parameter &#xfc;bergeben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958979046" ID="ID_700334374" MODIFIED="1537050782627" TEXT="Typ per Template-Parameter &#xfc;bergeben">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958994212" ID="ID_1735239890" MODIFIED="1536959004851" TEXT="flexible zus&#xe4;tzliche Argumente">
-<icon BUILTIN="flag-yellow"/>
+<node CREATED="1536958994212" ID="ID_1735239890" MODIFIED="1537050791509" TEXT="flexible zus&#xe4;tzliche Argumente">
+<icon BUILTIN="stop-sign"/>
+</node>
+<node COLOR="#338800" CREATED="1536973178765" ID="ID_1098421095" MODIFIED="1537052565699" TEXT="Unit-Test">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536959023376" ID="ID_928142688" MODIFIED="1536973192247" TEXT="Test implizit durch IterChainSearch">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node COLOR="#338800" CREATED="1536973293197" ID="ID_858941900" MODIFIED="1537052564048" TEXT="eigens abdecken">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536959023376" ID="ID_928142688" MODIFIED="1536959037879" TEXT="Test: durch IterChainSearch">
-<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>

From 05e6e7f316348644cf2923065b644414b2dbc798 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 15 Sep 2018 03:07:33 +0200
Subject: [PATCH 088/178] ChainSearch: remould construction to get the logic
 correct

on closer investigation it turned out that the logic of the
first design attempt was broken altogether. It did not properly
support backtracking (which was the reason to start this whole
exercise) and it caused dangling references within the lambda
closure once the produced iterator pipeline was moved out
into the target location.

Reasoning from first principles then indicated that the only sane
way to build such a search evaluation component is to use *two*
closely collaborating layers. The actual filter configuration
and evaluation logic can not reside and work from within the
expander. Rather, it must sit in a layer on top and work in
a conventional, imperative way (with a while loop).

Sometimes, functional programming is *not* the natural way
of doing things, and we should then stop attempting to force
matters against their nature.
---
 src/lib/iter-chain-search.hpp            |  64 ++++-----
 src/lib/iter-tree-explorer.hpp           |  22 +++-
 tests/library/iter-chain-search-test.cpp |   1 -
 wiki/thinkPad.ichthyo.mm                 | 160 ++++++++++++++++++++++-
 4 files changed, 202 insertions(+), 45 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 3de00ddea..0c58798ce 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -75,13 +75,12 @@ namespace iter {
                 .mutableFilter();
     }
     
-    template<class SRC, class FUN>
+    template<class SRC>
     auto
-    buildExplorer (SRC&& dataSource, FUN&& expandFunctor)
+    buildExplorer (SRC&& dataSource)
     {
       return buildSearchFilter (forward<SRC> (dataSource))
-                .expand (forward<FUN> (expandFunctor))
-                .expandAll();
+                .expand ([](auto it){ return it; });       // child iterator starts as copy of current level iterator
     }
     
     /**
@@ -97,16 +96,9 @@ namespace iter {
     struct _IterChainSetup
       {
         using Filter = decltype( buildSearchFilter(std::declval<SRC>()).asIterator() );
-        using StepFunctor = std::function<Filter(Filter const&)>;
-        
-        using Pipeline = decltype( buildExplorer (std::declval<SRC>(), std::declval<StepFunctor>()) );
-        
-        static Pipeline
-        configurePipeline (SRC&& dataSource, StepFunctor step)
-          {
-            return buildExplorer(forward<SRC> (dataSource), move (step));
-          }
+        using Pipeline = decltype( buildExplorer (std::declval<SRC>()) );
         
+        using StepFunctor = std::function<void(Filter&)>;
       };
     
   }//(End)type construction helpers
@@ -134,9 +126,6 @@ namespace iter {
       using Filter = typename _Trait::Filter;
       using Step   = typename _Trait::StepFunctor;
       
-      /** @internal access embedded filter sub-Pipeline */
-      Filter& filter() { return *this; }
-      
       /** Storage for a sequence of filter configuration functors */
       std::vector<Step> stepChain_;
 
@@ -150,9 +139,7 @@ namespace iter {
       template<class SEQ>
       explicit
       IterChainSearch (SEQ&& srcData)
-        : _Base{_Trait::configurePipeline (forward<SEQ> (srcData)
-                                          ,[this](Filter const& curr){ return configureFilterChain(curr); })}
-        , stepChain_{}
+        : _Base{buildExplorer (forward<SEQ> (srcData))}
         {       // mark initial pristine state
           _Base::disableFilter();
         }
@@ -161,13 +148,28 @@ namespace iter {
       using _Base::_Base;
       
       
+      /* === adapted iteration control API  === */
+      void
+      iterNext()
+        {
+          _Base::__throw_if_empty();
+          while (_Base::depth() < stepChain_.size()                          // Backtracking loop: attempt to establish all conditions
+                 and _Base::checkPoint())                                    // possibly trying further combinations until success:
+            {
+              _Base::expandChildren();                                       // create copy of current filter embedded into child level
+              stepChain_[_Base::depth()] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
+              _Base::dropExhaustedChildren();                                // which thereby might become empty
+            }
+        }
+      
+      
       
       /** configure additional chained search condition.
-       * @param a functor `Filter const& -> filter`, which takes a current filter configuration,
-       *        returning a copy from this configuration, possibly configured differently.
+       * @param a manipulation functor `void(Filter&)`, which works on the current filter
+       *       to possibly change its configuration.
        * @note the given functor, lambda or function reference will be wrapped and adapted
        *       to conform to the required function signature. When using a generic lambda,
-       *       the argument type `Filter const&` is assumed
+       *       the argument type `Filter&` is assumed
        * @remarks the additional chained search condition given here will be applied _after_
        *       matching all other conditions already in the filter chain. Each such condition
        *       is used to _filter_ the underlying source iterator, i.e. pull it until finding
@@ -185,7 +187,7 @@ namespace iter {
               Step nextStep{forward<FUN> (configureSearchStep)};
               
               if (_Base::isDisabled())
-                this-> filter() = move (nextStep (*this));      // apply first step immediately
+                nextStep (*this);                               // apply first step immediately
               else
                 {
                   stepChain_.emplace_back (move (nextStep)); //    append all further steps into the chain...
@@ -207,10 +209,9 @@ namespace iter {
       search (FUN&& filterPredicate)
         {
           addStep ([predicate{forward<FUN> (filterPredicate)}]
-                   (Filter filter)      // note: filter taken by value
-                     {
+                   (Filter& filter)
+                     {        // manipulte current filter configuration
                        filter.setNewFilter (predicate);
-                       return filter;   // return copy of the original state with changed filter
                      });
           return move(*this);
         }
@@ -239,17 +240,6 @@ namespace iter {
           _Base::disableFilter();
           return move(*this);
         }
-      
-    private:
-      Filter
-      configureFilterChain (Filter const& currentFilterState)
-        {
-          uint depth = this->depth();
-          if (depth < stepChain_.size())
-            return stepChain_[depth](currentFilterState); // augmented copy
-          else
-            return Filter{};     // empty filter indicates recursion end
-        }
     };
   
   
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index 47d9a9685..ebba4bbc4 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -722,12 +722,6 @@ namespace lib {
                 or *expansions_;
           }
         
-        bool
-        hasChildren()  const
-          {
-            return 0 < depth();
-          }
-        
         void
         incrementCurrent()
           {
@@ -737,12 +731,28 @@ namespace lib {
               ++(*this);
           }
         
+        
+      protected:
+        /** @internal accessor for downstream layers to allow close collaboration */
+        ResIter&
+        accessCurrentChildIter()
+          {
+            REQUIRE (hasChildren());
+            return *expansions_;
+          }
+        
         void
         dropExhaustedChildren()
           {
             while (not invariant())
               ++expansions_;
           }
+        
+        bool
+        hasChildren()  const
+          {
+            return 0 < depth();
+          }
       };
     
     
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index f8cca854a..bfd03e752 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -160,7 +160,6 @@ namespace test{
                               string currVal = *filter;
                               filter.setNewFilter ([=](string const& val){
                                   return val != currVal; });
-                              return filter;
                             });
 ///////////////////////////////////////////////////TODO WIP
           cout << materialise (search) <<endl;
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f1510183b..e5b65fe5a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31841,7 +31841,66 @@
 <icon BUILTIN="info"/>
 <node CREATED="1536857289235" ID="ID_1909570040" MODIFIED="1536857313452" TEXT="in configureFilterChain"/>
 <node CREATED="1536857326814" ID="ID_149310473" MODIFIED="1536857328426" TEXT="this-&gt;depth()"/>
-<node CREATED="1536857336620" ID="ID_1691329557" MODIFIED="1536857340040" TEXT="this-&gt;stepChain_"/>
+<node CREATED="1536857336620" ID="ID_1691329557" MODIFIED="1536857806626" TEXT="this-&gt;stepChain_">
+<linktarget COLOR="#d22d65" DESTINATION="ID_1691329557" ENDARROW="Default" ENDINCLINATION="147;-23;" ID="Arrow_ID_828211693" SOURCE="ID_396903078" STARTARROW="None" STARTINCLINATION="1;-33;"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536857741221" ID="ID_1903828771" MODIFIED="1536958903408" TEXT="bricht das ganze Konzept hier zusammen??">
+<icon BUILTIN="forward"/>
+<node COLOR="#435e98" CREATED="1536880103264" HGAP="27" ID="ID_1970250282" MODIFIED="1536958907215" TEXT="so schaugts aus...." VSHIFT="-10">
+<icon BUILTIN="smily_bad"/>
+</node>
+<node CREATED="1536857782632" ID="ID_396903078" MODIFIED="1536857806626" TEXT="stepChain_ ist das Problem">
+<arrowlink COLOR="#d22d65" DESTINATION="ID_1691329557" ENDARROW="Default" ENDINCLINATION="147;-23;" ID="Arrow_ID_828211693" STARTARROW="None" STARTINCLINATION="1;-33;"/>
+</node>
+<node CREATED="1536880086127" ID="ID_1559582643" MODIFIED="1536882591818" TEXT="depth wohl noch ein Gr&#xf6;&#xdf;eres">
+<node CREATED="1536882781354" ID="ID_1998865921" MODIFIED="1536882788421" TEXT="weil daran die Abbruchbedingung h&#xe4;ngt"/>
+<node CREATED="1536882789057" ID="ID_170176785" MODIFIED="1536882873905" TEXT="und depth sich aber automatisch ergibt -&gt; Backtracking"/>
+</node>
+<node CREATED="1536882920310" ID="ID_1625878480" MODIFIED="1536882937553" TEXT="eigentlich m&#xfc;&#xdf;te...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...nach der &#187;reinen Lehre&#171;
+    </p>
+  </body>
+</html></richcontent>
+<node CREATED="1536882938955" ID="ID_475907399" MODIFIED="1536882951373" TEXT="der Baum entweder sich selber entfalten k&#xf6;nnen">
+<node CREATED="1536883521914" ID="ID_857765324" MODIFIED="1536883531340" TEXT="und dazu den Chain in sich tragen"/>
+<node CREATED="1536883532120" ID="ID_153639655" MODIFIED="1536883537739" TEXT="und auch seinen eigenen Level kennen"/>
+</node>
+<node CREATED="1536882952177" ID="ID_563964508" MODIFIED="1536882961539" TEXT="oder von au&#xdf;erhalb entfaltet werden">
+<node CREATED="1536883544846" ID="ID_224633668" MODIFIED="1536883607066" TEXT="dann aber auch die Entfaltung von au&#xdf;en bekommen"/>
+<node CREATED="1536883607966" ID="ID_1870181162" MODIFIED="1536883618816" TEXT="also klassich-imperativ"/>
+<node CREATED="1536883623932" ID="ID_567889201" MODIFIED="1536883629455" TEXT="nix Monade!"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1536958857294" ID="ID_1302534828" MODIFIED="1536958940320" TEXT="Fazit: nur der zweite Ansatz ist durchf&#xfc;hrbar">
+<arrowlink COLOR="#81445a" DESTINATION="ID_1848331022" ENDARROW="Default" ENDINCLINATION="72;-412;" ID="Arrow_ID_1608996048" STARTARROW="None" STARTINCLINATION="672;68;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1536969411521" HGAP="36" ID="ID_1686255544" MODIFIED="1536969491348" TEXT="und selbst der braucht eine Art Hintert&#xfc;r" VSHIFT="8">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...insofern wir n&#228;mlich zwingend auf den jeweilign Kind-<i>Iterator</i>&#160;zugreifen m&#252;ssen.
+    </p>
+    <p>
+      Nicht nur auf den aktuellen Wert (=dereferenzierter Iterator, d.h. die Funktion yield())
+    </p>
+  </body>
+</html>
+</richcontent>
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="smily_bad"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -32262,6 +32321,105 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958590136" ID="ID_1848331022" MODIFIED="1536958932753" TEXT="Refactoring Pipeline-Struktur">
+<linktarget COLOR="#81445a" DESTINATION="ID_1848331022" ENDARROW="Default" ENDINCLINATION="72;-412;" ID="Arrow_ID_1608996048" SOURCE="ID_1302534828" STARTARROW="None" STARTINCLINATION="672;68;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1536958603857" ID="ID_610488133" MODIFIED="1536958622137" TEXT="das urspr&#xfc;ngliche Implementierungs-Konzept scheitert">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1536958626605" ID="ID_1277097786" MODIFIED="1536958638227" TEXT="aber ich will an dem Pipeline-Konzept festhalten">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1536958647378" ID="ID_270574796" MODIFIED="1536958666418" TEXT="Konsequenz: Schlu&#xdf; mit der Magie">
+<icon BUILTIN="yes"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958668327" ID="ID_392267635" MODIFIED="1536958691189" TEXT="keine geheimnisvollen Lambda-Closures mehr">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958680150" ID="ID_1572201908" MODIFIED="1536958697495" TEXT="zwei Layer verwenden">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958702987" ID="ID_1313964418" MODIFIED="1536958768827" TEXT="Basis == trivialer Explorer">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958719665" ID="ID_806425486" MODIFIED="1536958767715" TEXT="macht lediglich eine Kopie des Filters">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1536958727368" ID="ID_1206856632" MODIFIED="1536958732419" TEXT="nichts mehr automatisch"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1536958769371" TEXT="Dekorator == Steuer-Logik">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958744325" ID="ID_151094681" MODIFIED="1536958763476" TEXT="h&#xe4;lt den stepChain_">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958772594" ID="ID_365283571" MODIFIED="1536958788657" TEXT="klinkt sich in iterNext ein">
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1536958792215" ID="ID_519507996" MODIFIED="1536973216960" TEXT="TreeExplorer: custom-Layer">
+<arrowlink COLOR="#61afb3" DESTINATION="ID_686602920" ENDARROW="Default" ENDINCLINATION="-230;613;" ID="Arrow_ID_1710661685" STARTARROW="None" STARTINCLINATION="1241;-1305;"/>
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1536973229630" ID="ID_1567071992" MODIFIED="1536973238830" TEXT="brauche doch keinen Custom-Layer">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1536973239964" ID="ID_1858748865" MODIFIED="1536973282118" TEXT="ist besser ohne....">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      weil ich dann auf dem IterChainSearch unmittelbar die builder-Funktionen definieren kann
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958815668" ID="ID_327461551" MODIFIED="1536958840692">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      konfiguriert <i>danach direkt</i>&#160;den Filter
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536969507092" ID="ID_1318810550" MODIFIED="1536969521859" TEXT="braucht dazu eine Hintert&#xfc;r im Explorer-Layer">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1536969537728" ID="ID_1955805225" MODIFIED="1536969691123" TEXT="kann/darf diese nicht f&#xfc;r Basis-Iterator nutzen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...weil der Basis-Iterator (also der Template-Parameter SRC)
+    </p>
+    <p>
+      explizit und absichtlich einen anderen Typ haben <i>k&#246;nnte,</i>&#160;als der expandierte Kind-Iterator.
+    </p>
+    <p>
+      Das ist ein wesentliches Feature dieses Expander-Designs, w&#252;rde aber leider eine
+    </p>
+    <p>
+      komplett generische Accessor-Funktion unm&#246;glich machen (das Template w&#252;rde in
+    </p>
+    <p>
+      einem Solchen Fall insgesamt vom Compiler zur&#252;ckgewiesen)
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">
 <icon BUILTIN="pencil"/>

From 38a1aad897a2eed750f2ee7eb9431b78393e1c7d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 15 Sep 2018 04:19:08 +0200
Subject: [PATCH 089/178] ChainSearch: bugfixes on reworked construction

...seems basically sane now.
Just we still need to wrap it one more time into IterableDecorator;
which means the overall scheme how to build and package the whole pipeline
is not correct yet.

Maybe it is not possible to get it packaged all into one single class?
---
 src/lib/iter-chain-search.hpp            |  5 +-
 tests/library/iter-chain-search-test.cpp |  2 +-
 wiki/thinkPad.ichthyo.mm                 | 61 +++++++++++++++++++-----
 3 files changed, 53 insertions(+), 15 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 0c58798ce..6332fa2b2 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -153,11 +153,12 @@ namespace iter {
       iterNext()
         {
           _Base::__throw_if_empty();
-          while (_Base::depth() < stepChain_.size()                          // Backtracking loop: attempt to establish all conditions
+          uint depth;
+          while (stepChain_.size() > (depth=_Base::depth())                  // Backtracking loop: attempt to establish all conditions
                  and _Base::checkPoint())                                    // possibly trying further combinations until success:
             {
               _Base::expandChildren();                                       // create copy of current filter embedded into child level
-              stepChain_[_Base::depth()] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
+              stepChain_[depth] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
               _Base::dropExhaustedChildren();                                // which thereby might become empty
             }
         }
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index bfd03e752..8d30fed75 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -155,7 +155,7 @@ namespace test{
 ///////////////////////////////////////////////////TODO WIP
           CHECK (search);
           
-          search.addStep([](auto filter)
+          search.addStep([](auto& filter)
                             {
                               string currVal = *filter;
                               filter.setNewFilter ([=](string const& val){
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e5b65fe5a..3e5a22242 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32333,22 +32333,22 @@
 </node>
 <node CREATED="1536958647378" ID="ID_270574796" MODIFIED="1536958666418" TEXT="Konsequenz: Schlu&#xdf; mit der Magie">
 <icon BUILTIN="yes"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958668327" ID="ID_392267635" MODIFIED="1536958691189" TEXT="keine geheimnisvollen Lambda-Closures mehr">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958668327" ID="ID_392267635" MODIFIED="1536977591699" TEXT="keine geheimnisvollen Lambda-Closures mehr">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958680150" ID="ID_1572201908" MODIFIED="1536958697495" TEXT="zwei Layer verwenden">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958702987" ID="ID_1313964418" MODIFIED="1536958768827" TEXT="Basis == trivialer Explorer">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958719665" ID="ID_806425486" MODIFIED="1536958767715" TEXT="macht lediglich eine Kopie des Filters">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958702987" ID="ID_1313964418" MODIFIED="1536977597184" TEXT="Basis == trivialer Explorer">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536958719665" ID="ID_806425486" MODIFIED="1536977595267" TEXT="macht lediglich eine Kopie des Filters">
+<icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1536958727368" ID="ID_1206856632" MODIFIED="1536958732419" TEXT="nichts mehr automatisch"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1536958769371" TEXT="Dekorator == Steuer-Logik">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958744325" ID="ID_151094681" MODIFIED="1536958763476" TEXT="h&#xe4;lt den stepChain_">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958744325" ID="ID_151094681" MODIFIED="1536977615339" TEXT="h&#xe4;lt den stepChain_">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958772594" ID="ID_365283571" MODIFIED="1536958788657" TEXT="klinkt sich in iterNext ein">
 <icon BUILTIN="flag-yellow"/>
@@ -32372,8 +32372,45 @@
 </richcontent>
 </node>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1536977661129" ID="ID_700598895" MODIFIED="1536977792241" TEXT="Vorsicht: brauche nochmal IterableDecorator">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      denn: TreeExplorer == IterableDecorator&lt; Pipeline &gt;
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-pink"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536977678590" ID="ID_747407291" MODIFIED="1536977792241" TEXT="sonst wird meine spezielle IterNext() nicht aufgerufen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der oberste Layer, also hier IterChainSearch
+    </p>
+    <p>
+      ist selbst ein StateCore. Also brauche ich noch einen Dekocator
+    </p>
+    <p>
+      Wenn der fehlt, wird der n&#228;chste darunterliegende Decorator gepullt,
+    </p>
+    <p>
+      und der wickellt direkt den Expander ein
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958815668" ID="ID_327461551" MODIFIED="1536958840692">
+</node>
+</node>
+<node COLOR="#338800" CREATED="1536958815668" ID="ID_327461551" MODIFIED="1536977621476">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -32385,9 +32422,9 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536969507092" ID="ID_1318810550" MODIFIED="1536969521859" TEXT="braucht dazu eine Hintert&#xfc;r im Explorer-Layer">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536969507092" ID="ID_1318810550" MODIFIED="1536977610592" TEXT="braucht dazu eine Hintert&#xfc;r im Explorer-Layer">
+<icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1536969537728" ID="ID_1955805225" MODIFIED="1536969691123" TEXT="kann/darf diese nicht f&#xfc;r Basis-Iterator nutzen">
 <richcontent TYPE="NOTE"><html>

From 646a2e42cf9da30d6ee8ada57c3b548a30b5ba93 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 15 Sep 2018 16:41:11 +0200
Subject: [PATCH 090/178] ChainSearch: need to overload also the iterator
 function

...since usually such evaluation layers are finally wrapped into
an IterableDecorator and then presented as TreeEplorer -- an exercise
we do not want to perform here, since it is pointless in the typicall
use case. The IterChainSearch is already meant to be ready-for-use.

Thus, instead of wrapping again, the pragmatic solution is simply
to overload the missing operator++ and make it call the augmented
iterNext() function. Related to this, we also need to ensure
proper operation in case no further expansion is mandated
---
 src/lib/iter-chain-search.hpp | 68 +++++++++++++++++++++++++++++------
 wiki/thinkPad.ichthyo.mm      | 53 ++++++++++++++++++++-------
 2 files changed, 99 insertions(+), 22 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 6332fa2b2..4c7e96145 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -33,6 +33,38 @@
  ** then lead to a match. Basically we have to try all combinations of all possible local
  ** matches, to find a solution to satisfy the whole chain of conditions.
  ** 
+ ** ## Design
+ ** 
+ ** The IterChainSearch component is built as a processing pipeline, based on the
+ ** [Tree-Explorer framework](\ref iter-tree-explorer.hpp). This yields several benefits, yet also
+ ** imposes some drawbacks. Without much effort, we get a extremely flexible and configurable
+ ** solution, with acceptable / moderate performance. The result automatically adapts to a wide
+ ** array of data sources; it is possible (and even intended) to attach it on top of an already
+ ** existing on-demand data processing pipeline. The "source" can itself be a "state core" and
+ ** we may install suitable filter predicates to possibly collaborate with the internals of
+ ** such a state core. Yet we may also confine ourselves to pure functions and value processing.
+ ** 
+ ** The obvious downside of such an approach is its complexity in terms of code to understand.
+ ** The collaboration between several layers in a filter pipeline can be intricate, leading to
+ ** chains of layered similar functions calling each other. Most of these abstractions and
+ ** decorations will be removed by the compiler and optimiser, typically leading to long
+ ** compilation times and rather large size of the generated code (which in debugging mode
+ ** with full type information can even become excessively huge).
+ ** 
+ ** Some caveats
+ ** - the resulting pipeline is copyable, and it is typically moved out from a builder
+ **   function into the target location. So beware of _lambda captures by reference._
+ **   When you capture _anything_ within the pipeline itself, like some `this` pointer,
+ **   you'll end up with a dangling reference for sure. However, it is just fine to
+ **   capture extended facilities within the scope _enclosing_ the pipeline, as long
+ **   as this scope remains intact during the whole usage time of the pipeline.
+ ** - the resulting entity, an instantiation of the IterChainSearch template, is
+ **   not a generic TreeExplorer (builder). Be careful when using any builder
+ **   functions still accessible. The only functions meant to be used in
+ **   builder style are the IterChainSearch::search() variations.
+ ** - if you copy, the embedded state is copied alongside, but not
+ **   any external state referred by it.
+ ** 
  ** @see IterCursor_test
  ** @see iter-adapter.hpp
  ** @see [usage example](event-log.hpp)
@@ -48,8 +80,6 @@
 #include "lib/iter-tree-explorer.hpp"
 #include "lib/meta/util.hpp"
 
-//#include <type_traits>
-//#include <utility>
 #include <utility>
 #include <vector>
 #include <string>
@@ -128,6 +158,13 @@ namespace iter {
       
       /** Storage for a sequence of filter configuration functors */
       std::vector<Step> stepChain_;
+      
+      
+      bool
+      needsExpansion()  const
+        {
+          return _Base::depth() < stepChain_.size();
+        }
 
     public:
       /** Build a chain-search mechanism based on the given source data sequence.
@@ -153,14 +190,25 @@ namespace iter {
       iterNext()
         {
           _Base::__throw_if_empty();
-          uint depth;
-          while (stepChain_.size() > (depth=_Base::depth())                  // Backtracking loop: attempt to establish all conditions
-                 and _Base::checkPoint())                                    // possibly trying further combinations until success:
-            {
-              _Base::expandChildren();                                       // create copy of current filter embedded into child level
-              stepChain_[depth] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
-              _Base::dropExhaustedChildren();                                // which thereby might become empty
-            }
+          if (not needsExpansion())
+            _Base::iterNext();
+          else
+            do
+              {
+                uint depth =_Base::depth();
+                _Base::expandChildren();                              // create copy of current filter embedded into child level
+                stepChain_[depth] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
+                _Base::dropExhaustedChildren();                       // which thereby might become empty
+              }
+          while (needsExpansion()                                     // Backtracking loop: attempt to establish all conditions
+                 and _Base::checkPoint());                            // possibly trying further combinations until success:
+        }
+      
+      IterChainSearch&
+      operator++()
+        {
+          iterNext();
+          return *this;
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 3e5a22242..f06848cc2 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31832,8 +31832,8 @@
 <linktarget COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" SOURCE="ID_1532889609" STARTARROW="None" STARTINCLINATION="149;-3;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536857187385" ID="ID_1180686110" MODIFIED="1536857230548" TEXT="Bug! Referenz auf *this">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1536857187385" FOLDED="true" ID="ID_1180686110" MODIFIED="1537022182370" TEXT="Bug! Referenz auf *this">
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1536857213605" ID="ID_1051501156" MODIFIED="1536857238050" TEXT="...und dann moved man *this aus dem Builder!!!">
 <icon BUILTIN="broken-line"/>
 </node>
@@ -32336,8 +32336,8 @@
 <node COLOR="#338800" CREATED="1536958668327" ID="ID_392267635" MODIFIED="1536977591699" TEXT="keine geheimnisvollen Lambda-Closures mehr">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958680150" ID="ID_1572201908" MODIFIED="1536958697495" TEXT="zwei Layer verwenden">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958680150" ID="ID_1572201908" MODIFIED="1537022157726" TEXT="zwei Layer verwenden">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536958702987" ID="ID_1313964418" MODIFIED="1536977597184" TEXT="Basis == trivialer Explorer">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536958719665" ID="ID_806425486" MODIFIED="1536977595267" TEXT="macht lediglich eine Kopie des Filters">
@@ -32345,13 +32345,13 @@
 </node>
 <node CREATED="1536958727368" ID="ID_1206856632" MODIFIED="1536958732419" TEXT="nichts mehr automatisch"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1536958769371" TEXT="Dekorator == Steuer-Logik">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1537022159071" TEXT="Dekorator == Steuer-Logik">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536958744325" ID="ID_151094681" MODIFIED="1536977615339" TEXT="h&#xe4;lt den stepChain_">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958772594" ID="ID_365283571" MODIFIED="1536958788657" TEXT="klinkt sich in iterNext ein">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536958772594" ID="ID_365283571" MODIFIED="1537022146845" TEXT="klinkt sich in iterNext ein">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1536958792215" ID="ID_519507996" MODIFIED="1536973216960" TEXT="TreeExplorer: custom-Layer">
 <arrowlink COLOR="#61afb3" DESTINATION="ID_686602920" ENDARROW="Default" ENDINCLINATION="-230;613;" ID="Arrow_ID_1710661685" STARTARROW="None" STARTINCLINATION="1241;-1305;"/>
 <icon BUILTIN="button_cancel"/>
@@ -32372,7 +32372,7 @@
 </richcontent>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1536977661129" ID="ID_700598895" MODIFIED="1536977792241" TEXT="Vorsicht: brauche nochmal IterableDecorator">
+<node COLOR="#338800" CREATED="1536977661129" ID="ID_700598895" MODIFIED="1537022064594" TEXT="Vorsicht: brauche nochmal IterableDecorator">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32384,8 +32384,8 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-pink"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536977678590" ID="ID_747407291" MODIFIED="1536977792241" TEXT="sonst wird meine spezielle IterNext() nicht aufgerufen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1536977678590" ID="ID_747407291" MODIFIED="1537022078175" TEXT="sonst wird meine spezielle IterNext() nicht aufgerufen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32406,7 +32406,13 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1537022084564" ID="ID_447764404" MODIFIED="1537022104224" TEXT="brauche doch einen top-Level TreeExplorer + custom-Layer">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1537022109392" ID="ID_1885636592" MODIFIED="1537022142275" STYLE="fork" TEXT="pragmatisch: direkt auch operator++ &#xfc;berschreiben">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -32456,6 +32462,29 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022195013" ID="ID_1801625619" MODIFIED="1537022214939" TEXT="Korrektheit der Auswertungs-Logik">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022206627" ID="ID_983878679" MODIFIED="1537022215843" TEXT="mit komplexem Funktor">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537022226504" ID="ID_1825074472" MODIFIED="1537022243242" TEXT="faul?">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sausage-bacon-tomato-and-sausage-spam-spam-bacon-spam-tomato-and-spam-spam-bacon-tomato-and-spam-bacon-tomato-and-spam-tomato-and-spam
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-pink"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022216506" ID="ID_794497840" MODIFIED="1537022219986" TEXT="mit Backtracking">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">

From 84c30fe802953251778bfbc53f291811ec8e7fba Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 15 Sep 2018 17:19:13 +0200
Subject: [PATCH 091/178] ChainSearch: need to gear up immediately after
 backtracking

...which can be achieved by checking the backtracking loop
always right after the non-backtracking iteration, exploiting
the fact that the guard conditions of both are complimentary.
So the only case when we'd actually enter the backtracking
loop after regular iteration would precisely be when
we drop down due to exahausting an upper layer.

The result now reads

"sausage-bacon-tomato-and-spam-spam-bacon-spam-tomato-and-spam-bacon-tomato-and-bacon-tomato-and-tomato-and"

...which sounds correct, yay!
---
 src/lib/iter-chain-search.hpp | 18 ++++++++----------
 wiki/thinkPad.ichthyo.mm      | 25 +++++++++++++++++++++++--
 2 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 4c7e96145..6b3a13666 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -192,16 +192,14 @@ namespace iter {
           _Base::__throw_if_empty();
           if (not needsExpansion())
             _Base::iterNext();
-          else
-            do
-              {
-                uint depth =_Base::depth();
-                _Base::expandChildren();                              // create copy of current filter embedded into child level
-                stepChain_[depth] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
-                _Base::dropExhaustedChildren();                       // which thereby might become empty
-              }
-          while (needsExpansion()                                     // Backtracking loop: attempt to establish all conditions
-                 and _Base::checkPoint());                            // possibly trying further combinations until success:
+          while (needsExpansion()                                   // Backtracking loop: attempt to establish all conditions
+                 and _Base::checkPoint())                           // possibly trying further combinations until success:
+            {
+              uint depth =_Base::depth();
+              _Base::expandChildren();                              // create copy of current filter embedded into child level
+              stepChain_[depth] (_Base::accessCurrentChildIter());  // invoke step functor to reconfigure this filter...
+              _Base::dropExhaustedChildren();                       // which thereby might become empty
+            }
         }
       
       IterChainSearch&
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f06848cc2..0d4bdb3ab 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32466,7 +32466,7 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022206627" ID="ID_983878679" MODIFIED="1537022215843" TEXT="mit komplexem Funktor">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537022226504" ID="ID_1825074472" MODIFIED="1537022243242" TEXT="faul?">
+<node COLOR="#338800" CREATED="1537022226504" ID="ID_1825074472" MODIFIED="1537024319743" TEXT="faul?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32478,7 +32478,28 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-pink"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537024323509" ID="ID_22995423" MODIFIED="1537024327665" TEXT="ja">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1537024330564" ID="ID_1923248765" MODIFIED="1537024353996" TEXT="das Element, auf das wir backtracken, kommt raus"/>
+</node>
+<node COLOR="#338800" CREATED="1537024363024" ID="ID_197150338" MODIFIED="1537024376343" TEXT="mu&#xdf; nach Backtracking explizit neu aufsetzen und hochspulen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1537024386500" ID="ID_792998865" MODIFIED="1537024403713" TEXT="schon besser....">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sausage-bacon-tomato-and-spam-spam-bacon-spam-tomato-and-spam-bacon-tomato-and-bacon-tomato-and-tomato-and
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022216506" ID="ID_794497840" MODIFIED="1537022219986" TEXT="mit Backtracking">

From 84399aa407992a9c98c333eca95b1313deb38fce Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 15 Sep 2018 22:40:58 +0200
Subject: [PATCH 092/178] ChainSearch: verify proper interplay of two dynamic
 search conditions

---
 tests/library/iter-chain-search-test.cpp | 50 ++++++++++++++----------
 wiki/thinkPad.ichthyo.mm                 | 10 ++---
 2 files changed, 34 insertions(+), 26 deletions(-)

diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index 8d30fed75..a42cb8d5a 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -68,7 +68,15 @@ namespace test{
                    ,"spam"
                    };
     
-  } // (END)fixture
+    
+    /** Diagnostic helper: join all the elements from a _copy_ of the iterator */
+    template<class II>
+    inline string
+    materialise (II&& ii)
+    {
+      return util::join (std::forward<II> (ii), "-");
+    }
+  }// (END)fixture
   
   
   
@@ -77,14 +85,6 @@ namespace test{
     cout << "typeof( " << STRINGIFY(_TY_) << " )= " << lib::meta::typeStr<_TY_>() <<endl;
 #define SHOW_EXPR(_XX_) \
     cout << "Probe " << STRINGIFY(_XX_) << " ? = " << _XX_ <<endl;
-
-    /** Diagnostic helper: join all the elements from a _copy_ of the iterator */
-    template<class II>
-    inline string
-    materialise (II&& ii)
-    {
-      return util::join (std::forward<II> (ii), "-");
-    }
 ///////////////////////////////////////////////////TODO WIP
   
   
@@ -148,22 +148,30 @@ namespace test{
       void
       chainedIteration ()
         {
-          auto search = chainSearch(SPAM)
+          auto search = chainSearch(SPAM)                                  // Note: 1st filter step picks all s-words
                           .search([](string const& str){ return startsWith (str, "s"); });
-///////////////////////////////////////////////////TODO WIP
-          cout << materialise (search) <<endl;
-///////////////////////////////////////////////////TODO WIP
-          CHECK (search);
+          
+          CHECK (materialise (search) =="spam-sausage-spam-spam-spam-spam");
+          CHECK ("spam" == *search);
           
           search.addStep([](auto& filter)
-                            {
-                              string currVal = *filter;
-                              filter.setNewFilter ([=](string const& val){
-                                  return val != currVal; });
+                            {                                              // Note: pick the current value at the point
+                              string currVal = *filter;                    //       where the 2nd filter step is (re)applied 
+                              filter.setNewFilter ([=](string const& val)  //       ...and bake this value into the lambda closure
+                                                    {
+                                                      return val != currVal;
+                                                    });
                             });
-///////////////////////////////////////////////////TODO WIP
-          cout << materialise (search) <<endl;
-///////////////////////////////////////////////////TODO WIP
+          
+          CHECK ("sausage" == *search);
+          CHECK (materialise (search)
+                 == "sausage-bacon-tomato-and-"               // everything in the rest, which is not "spam"
+                    "spam-spam-bacon-spam-tomato-and-spam-"   // everything starting at "sausage" which is not "sausage"
+                    "bacon-tomato-and-"                       // any non-spam behind the 2nd spam
+                    "bacon-tomato-and-"                       // any non-spam behind the 3rd spam
+                    "tomato-and"                              // any non-spam behind the 4th spam
+                    "");                                      // and any non-spam behind the final spam
+          
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0d4bdb3ab..799e1047a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -32336,7 +32336,7 @@
 <node COLOR="#338800" CREATED="1536958668327" ID="ID_392267635" MODIFIED="1536977591699" TEXT="keine geheimnisvollen Lambda-Closures mehr">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1536958680150" ID="ID_1572201908" MODIFIED="1537022157726" TEXT="zwei Layer verwenden">
+<node COLOR="#338800" CREATED="1536958680150" FOLDED="true" ID="ID_1572201908" MODIFIED="1537043844149" TEXT="zwei Layer verwenden">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536958702987" ID="ID_1313964418" MODIFIED="1536977597184" TEXT="Basis == trivialer Explorer">
 <icon BUILTIN="button_ok"/>
@@ -32345,12 +32345,12 @@
 </node>
 <node CREATED="1536958727368" ID="ID_1206856632" MODIFIED="1536958732419" TEXT="nichts mehr automatisch"/>
 </node>
-<node COLOR="#338800" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1537022159071" TEXT="Dekorator == Steuer-Logik">
+<node COLOR="#338800" CREATED="1536958733950" ID="ID_374374485" MODIFIED="1537043822570" TEXT="Dekorator == Steuer-Logik">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536958744325" ID="ID_151094681" MODIFIED="1536977615339" TEXT="h&#xe4;lt den stepChain_">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1536958772594" ID="ID_365283571" MODIFIED="1537022146845" TEXT="klinkt sich in iterNext ein">
+<node COLOR="#338800" CREATED="1536958772594" FOLDED="true" ID="ID_365283571" MODIFIED="1537043830287" TEXT="klinkt sich in iterNext ein">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1536958792215" ID="ID_519507996" MODIFIED="1536973216960" TEXT="TreeExplorer: custom-Layer">
 <arrowlink COLOR="#61afb3" DESTINATION="ID_686602920" ENDARROW="Default" ENDINCLINATION="-230;613;" ID="Arrow_ID_1710661685" STARTARROW="None" STARTINCLINATION="1241;-1305;"/>
@@ -32464,8 +32464,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022195013" ID="ID_1801625619" MODIFIED="1537022214939" TEXT="Korrektheit der Auswertungs-Logik">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022206627" ID="ID_983878679" MODIFIED="1537022215843" TEXT="mit komplexem Funktor">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537022206627" ID="ID_983878679" MODIFIED="1537043798684" TEXT="mit komplexem Funktor">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537022226504" ID="ID_1825074472" MODIFIED="1537024319743" TEXT="faul?">
 <richcontent TYPE="NOTE"><html>
   <head>

From 1683439b320d67eb2ac6707aaaa1c6ba18fc9ecc Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 16 Sep 2018 00:26:46 +0200
Subject: [PATCH 093/178] ChainSearch: backtracking verified -- finished

---
 src/lib/iter-chain-search.hpp            |  41 ++++-----
 src/lib/iter-tree-explorer.hpp           |   2 +-
 tests/library/iter-chain-search-test.cpp |  49 ++++++++---
 wiki/thinkPad.ichthyo.mm                 | 104 ++++++++++++-----------
 4 files changed, 117 insertions(+), 79 deletions(-)

diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index 6b3a13666..d8913318c 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -24,7 +24,7 @@
 /** @file iter-chain-search.hpp
  ** Evaluation mechanism to apply a sequence of conditions onto a linear search.
  ** This search algorithm is implemented on top of a tree expanding (monadic) filter pipeline,
- ** to allow for backtracking. The intention is not to combine the individual conditions, but
+ ** to allow for backtracking. The intention is not just to combine the individual conditions, but
  ** rather to apply them one by one. After finding a match for the first condition, we'll search
  ** for the next condition _starting at the position of the previous match_. In the most general
  ** case, this immediate progression down the search chain might be too greedy; it could be that
@@ -36,10 +36,10 @@
  ** ## Design
  ** 
  ** The IterChainSearch component is built as a processing pipeline, based on the
- ** [Tree-Explorer framework](\ref iter-tree-explorer.hpp). This yields several benefits, yet also
- ** imposes some drawbacks. Without much effort, we get a extremely flexible and configurable
- ** solution, with acceptable / moderate performance. The result automatically adapts to a wide
- ** array of data sources; it is possible (and even intended) to attach it on top of an already
+ ** [Tree-Explorer framework](\ref iter-tree-explorer.hpp). This yields several benefits, but
+ ** imposes some drawbacks. Without much effort, we get an extremely flexible and configurable
+ ** solution, with acceptable / moderate performance. The result automatically adapts to a huge
+ ** selection of data sources; it is possible (and is even intended) to attach it on top of an
  ** existing on-demand data processing pipeline. The "source" can itself be a "state core" and
  ** we may install suitable filter predicates to possibly collaborate with the internals of
  ** such a state core. Yet we may also confine ourselves to pure functions and value processing.
@@ -47,9 +47,9 @@
  ** The obvious downside of such an approach is its complexity in terms of code to understand.
  ** The collaboration between several layers in a filter pipeline can be intricate, leading to
  ** chains of layered similar functions calling each other. Most of these abstractions and
- ** decorations will be removed by the compiler and optimiser, typically leading to long
+ ** decorations will be resolved by the compiler and optimiser, typically leading to long
  ** compilation times and rather large size of the generated code (which in debugging mode
- ** with full type information can even become excessively huge).
+ ** with full type information can even become excessively large).
  ** 
  ** Some caveats
  ** - the resulting pipeline is copyable, and it is typically moved out from a builder
@@ -63,10 +63,11 @@
  **   functions still accessible. The only functions meant to be used in
  **   builder style are the IterChainSearch::search() variations.
  ** - if you copy, the embedded state is copied alongside, but not
- **   any external state referred by it.
+ **   any further external state referred by it.
  ** 
+ ** @see IterChainSearch_test
  ** @see IterCursor_test
- ** @see iter-adapter.hpp
+ ** @see iter-tree-explorer.hpp
  ** @see [usage example](event-log.hpp)
  ** 
  */
@@ -110,7 +111,7 @@ namespace iter {
     buildExplorer (SRC&& dataSource)
     {
       return buildSearchFilter (forward<SRC> (dataSource))
-                .expand ([](auto it){ return it; });       // child iterator starts as copy of current level iterator
+                .expand ([](auto it){ return it; });   // child iterator starts as copy of current level iterator
     }
     
     /**
@@ -128,6 +129,7 @@ namespace iter {
         using Filter = decltype( buildSearchFilter(std::declval<SRC>()).asIterator() );
         using Pipeline = decltype( buildExplorer (std::declval<SRC>()) );
         
+        /** each step in the chain is a functor to reconfigure the underlying filter */
         using StepFunctor = std::function<void(Filter&)>;
       };
     
@@ -137,13 +139,13 @@ namespace iter {
   
   
   
-  /**
+  /*********************************************************************************************************//**
    * Iterator based linear search mechanism, with the ability to perform consecutive search with backtracking.
    * The IterChainSearch can be configured with a sequence of search goals (filter conditions), and will apply
    * these in succession on the underlying iterator. It will search _by linear search_ for the first hit of the
    * first condition, and then continue to search _from there_ matching on the second condition, and so on.
    * After the first combination of matches is exhausted, the search will backtrack and try to evaluate
-   * the next combination, leading to a tree of search solutions.
+   * the next combination, leading to a tree of on-demand search solutions.
    */
   template<class SRC>
   class IterChainSearch
@@ -177,7 +179,7 @@ namespace iter {
       explicit
       IterChainSearch (SEQ&& srcData)
         : _Base{buildExplorer (forward<SEQ> (srcData))}
-        {       // mark initial pristine state
+        {      // mark initial pristine state
           _Base::disableFilter();
         }
       
@@ -216,7 +218,7 @@ namespace iter {
        *       to possibly change its configuration.
        * @note the given functor, lambda or function reference will be wrapped and adapted
        *       to conform to the required function signature. When using a generic lambda,
-       *       the argument type `Filter&` is assumed
+       *       the argument type `Filter&` is used for instantiation
        * @remarks the additional chained search condition given here will be applied _after_
        *       matching all other conditions already in the filter chain. Each such condition
        *       is used to _filter_ the underlying source iterator, i.e. pull it until finding
@@ -235,7 +237,7 @@ namespace iter {
               
               if (_Base::isDisabled())
                 nextStep (*this);                               // apply first step immediately
-              else
+              else                                             //  (implicitly enables the base filter)
                 {
                   stepChain_.emplace_back (move (nextStep)); //    append all further steps into the chain...
                   this->iterNext();                         //     then establish invariant:
@@ -295,14 +297,15 @@ namespace iter {
   /* ==== convenient builder free function ==== */
   
   /** setup a chain search configuration by suitably wrapping the given container.
-   * @return a TreeEplorer, which is an Iterator to yield all the source elements,
-   *         but may also be used to build an processing pipeline.
+   * @return an IterChainSearch instantiation, which is an Iterator to yield all the
+   *         source elements, but can be outfitted with a sequence of filter conditions,
+   *         to be applied to the underlying source one by one.
+   * @param srcData either a »Lumiera Forward Iterator«, a _reference_ to a STL
+   *         container, or a [»State Core«](\ref lib::IterStateWrapper) object.
    * @warning if you capture the result of this call by an auto variable,
    *         be sure to understand that invoking any further builder operation on
    *         TreeExplorer will invalidate that variable (by moving it into the
    *         augmented iterator returned from such builder call).
-   * @param srcData either a »Lumiera Forward Iterator«, a _reference_ to a STL
-   *         container, or a [»State Core«](\ref lib::IterStateWrapper) object.
    */
   template<class SRC>
   inline auto
diff --git a/src/lib/iter-tree-explorer.hpp b/src/lib/iter-tree-explorer.hpp
index ebba4bbc4..fe896534e 100644
--- a/src/lib/iter-tree-explorer.hpp
+++ b/src/lib/iter-tree-explorer.hpp
@@ -719,7 +719,7 @@ namespace lib {
         invariant()  const
           {
             return not hasChildren()
-                or *expansions_;
+                or expansions_->isValid();
           }
         
         void
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index a42cb8d5a..e76aa14b8 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -28,9 +28,9 @@
 
 #include "lib/test/run.hpp"
 #include "lib/test/test-helper.hpp"
-#include "lib/format-util.hpp"  /////////////////////////////TODO necessary?
-#include "lib/format-cout.hpp"  /////////////////////////////TODO necessary?
+#include "lib/format-util.hpp"
 #include "lib/iter-chain-search.hpp"
+#include "lib/iter-cursor.hpp"
 #include "lib/util.hpp"
 
 #include <vector>
@@ -80,18 +80,22 @@ namespace test{
   
   
   
-///////////////////////////////////////////////////TODO WIP
-#define SHOW_TYPE(_TY_) \
-    cout << "typeof( " << STRINGIFY(_TY_) << " )= " << lib::meta::typeStr<_TY_>() <<endl;
-#define SHOW_EXPR(_XX_) \
-    cout << "Probe " << STRINGIFY(_XX_) << " ? = " << _XX_ <<endl;
-///////////////////////////////////////////////////TODO WIP
   
   
   
   
   /*****************************************************************//**
    * @test verify a setup for consecutive searches with backtracking.
+   *       - demonstrate simple consecutive matches and iterator behaviour
+   *       - clear the filter underway and thus return to simple iteration
+   *       - set up two conditions, the second one capturing state at the
+   *         point where the first one matches
+   *       - wrap a lib::IterCursor, which allows to toggle the search
+   *         direction underway; this creates a situation where the
+   *         first options picked do not lead to a successful solution,
+   *         so the search has to track back, try further options and
+   *         in each case re-apply all the following consecutive
+   *         search conditions.
    * 
    * @see iter-chain-search.hpp
    * @see iter-cursor.hpp
@@ -156,7 +160,7 @@ namespace test{
           
           search.addStep([](auto& filter)
                             {                                              // Note: pick the current value at the point
-                              string currVal = *filter;                    //       where the 2nd filter step is (re)applied 
+                              string currVal = *filter;                    //       where the 2nd filter step is (re)applied
                               filter.setNewFilter ([=](string const& val)  //       ...and bake this value into the lambda closure
                                                     {
                                                       return val != currVal;
@@ -171,7 +175,6 @@ namespace test{
                     "bacon-tomato-and-"                       // any non-spam behind the 3rd spam
                     "tomato-and"                              // any non-spam behind the 4th spam
                     "");                                      // and any non-spam behind the final spam
-          
         }
       
       
@@ -187,6 +190,32 @@ namespace test{
       void
       backtracking ()
         {
+          using Cursor = IterCursor<decltype(SPAM.begin())>;
+          
+          auto search = chainSearch(Cursor{SPAM.begin(), SPAM.end()})
+                          .search("spam")
+                          .addStep([](auto& filter)
+                                      {
+                                        filter.switchBackwards(); // switch search direction without moving the cursor
+                                        filter.flipFilter();      // flip from match on "spam" to match on non-spam
+                                      })
+                          .addStep([](auto& filter)
+                                      {                           // filter is still configured to search non-spam backwards
+                                        ++filter;                 // just "advance" this filter by one step (backward)
+                                      });
+          
+          CHECK (materialise (search)        // Layer-0: 1-3 spam fail altogether, too greedy. Try 4rd spam....
+                                             // Layer-1: turn back, toggle to non-spam, find bacon
+                 == "sausage-"               // Layer-2: non-spam and one step further backwards yields sausage
+                                             //
+                                             // BACKTRACK to Layer-0: pick 5th (and last) spam...
+                                             // Layer-1: turn back, toggle to non-spam, find "and"
+                    "tomato-bacon-sausage-"  // Layer-2: non-spam and one step back yields tomato, next bacon, next sausage.
+                                             // BACKTRACK to Layer-1: take previous one, which is tomato
+                    "bacon-sausage-"         // Layer-2: non-spam and one step further back yields bacon, then next sausage.
+                                             // BACKTRACK to Layer-1: take previous non-spam, which is bacon
+                    "sausage"                // Layer-2: non-spam and one step further back yields sausage.
+                    "");                     // BACKTRACK to Layer-1: exhausted, BACKTRACK to Layer-0: exhausted. Done.
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 799e1047a..0dbe24d12 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -30764,7 +30764,11 @@
 <node CREATED="1535891156816" ID="ID_679300718" MODIFIED="1535891164631" TEXT="ist komplex">
 <icon BUILTIN="smiley-neutral"/>
 <node CREATED="1535939100410" ID="ID_1893557511" MODIFIED="1535939107373" TEXT="aber von einer Art, die mir gef&#xe4;llt"/>
-<node CREATED="1535939111640" ID="ID_1649632412" MODIFIED="1535939115932" TEXT="war bisher gut wartbar"/>
+<node CREATED="1535939111640" ID="ID_1649632412" MODIFIED="1535939115932" TEXT="war bisher gut wartbar">
+<node CREATED="1537050257419" HGAP="27" ID="ID_1397772054" MODIFIED="1537050286364" TEXT="naja...." VSHIFT="5">
+<arrowlink DESTINATION="ID_913930564" ENDARROW="Default" ENDINCLINATION="-274;-41;" ID="Arrow_ID_1572610374" STARTARROW="None" STARTINCLINATION="-127;28;"/>
+</node>
+</node>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1514328717684" ID="ID_137835978" MODIFIED="1535892401183" TEXT="neuer Anlauf IterExplorer II">
@@ -31259,7 +31263,8 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536409302285" FOLDED="true" ID="ID_913930564" MODIFIED="1536533161341" TEXT="extrem komplexe Typen">
+<node COLOR="#338800" CREATED="1536409302285" FOLDED="true" ID="ID_913930564" MODIFIED="1537050286364" TEXT="extrem komplexe Typen">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_913930564" ENDARROW="Default" ENDINCLINATION="-274;-41;" ID="Arrow_ID_1572610374" SOURCE="ID_1397772054" STARTARROW="None" STARTINCLINATION="-127;28;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536409316172" ID="ID_1468538186" MODIFIED="1536409340127" TEXT="Call-Traces sind nahezu unlesbar">
 <richcontent TYPE="NOTE"><html>
@@ -31709,9 +31714,9 @@
 <node CREATED="1535894029921" ID="ID_152779506" MODIFIED="1535894037411" TEXT="den Stack schrittweise hochsteigen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894097279" ID="ID_1801538785" MODIFIED="1536018600721" TEXT="als eigene Lib-Klasse bauen">
+<node COLOR="#338800" CREATED="1535894097279" FOLDED="true" ID="ID_1801538785" MODIFIED="1537050317551" TEXT="als eigene Lib-Klasse bauen">
 <linktarget COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" SOURCE="ID_1910123172" STARTARROW="None" STARTINCLINATION="-120;0;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1535894115317" ID="ID_1507592237" MODIFIED="1536018340937" TEXT="Design-Frage: wie konkret?">
 <icon BUILTIN="help"/>
 <node CREATED="1536018209730" ID="ID_1130583934" MODIFIED="1536018221348" TEXT="nur das generische Auswertungs-Schema"/>
@@ -31720,8 +31725,8 @@
 <node CREATED="1536018293535" ID="ID_361886715" MODIFIED="1536018315757" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Wert-equality-Match"/>
 <node CREATED="1536018276593" ID="ID_1222260775" MODIFIED="1536018287299" TEXT="prekonfigurierte Builder-Funktionen f&#xfc;r Standardf&#xe4;lle"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1536329770737" TEXT="Implementierung">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536018364845" ID="ID_1351452920" MODIFIED="1537050037422" TEXT="Implementierung">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018375244" ID="ID_1906913554" MODIFIED="1536717634181" TEXT="Kern: Explore-Mechanismus">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018644456" ID="ID_477475522" MODIFIED="1536329729458" TEXT="Signatur der Explore-Funktion festlegen">
@@ -31904,7 +31909,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536018406232" ID="ID_1330264339" MODIFIED="1536326484790" TEXT="Schritte als Funktoren">
+<node COLOR="#338800" CREATED="1536018406232" FOLDED="true" ID="ID_1330264339" MODIFIED="1537050129790" TEXT="Schritte als Funktoren">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018684754" FOLDED="true" ID="ID_1076606298" MODIFIED="1536326570743" TEXT="geeignete Signatur f&#xfc;r die Schritt-Funktoren">
 <icon BUILTIN="button_ok"/>
@@ -32108,7 +32113,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1536018923378" ID="ID_1163666446" MODIFIED="1536717626552" TEXT="Pipeline konstruieren">
+<node COLOR="#338800" CREATED="1536018923378" FOLDED="true" ID="ID_1163666446" MODIFIED="1537050128222" TEXT="Pipeline konstruieren">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018931433" ID="ID_1532889609" MODIFIED="1536717484882" TEXT="treeExplorer-Konfiguration">
 <arrowlink COLOR="#65a7b1" DESTINATION="ID_1044555993" ENDARROW="Default" ENDINCLINATION="70;92;" ID="Arrow_ID_575633930" STARTARROW="None" STARTINCLINATION="149;-3;"/>
@@ -32172,7 +32177,34 @@
 </node>
 </node>
 </node>
-<node CREATED="1536357666667" ID="ID_886527146" MODIFIED="1536357671758" TEXT="Design-Kritik">
+<node COLOR="#338800" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1537050023015" TEXT="Adaptieren der Quell-Datensequenz">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536326442522" TEXT="macht normalerweise TreeExplorer">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" SOURCE="ID_1700266521" STARTARROW="None" STARTINCLINATION="76;-5;"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536018887223" ID="ID_832237706" MODIFIED="1537050024641" TEXT="speziell: gear switch">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1536018442123" ID="ID_829730232" MODIFIED="1536329759111" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Match">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018985450" ID="ID_1700266521" MODIFIED="1536329755895" TEXT="Wert-Typ deduzieren">
+<arrowlink DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" STARTARROW="None" STARTINCLINATION="76;-5;"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1536019008151" ID="ID_29813547" MODIFIED="1536329757422" TEXT="equality comparision in Lambda">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1536018471975" ID="ID_1115030606" MODIFIED="1537050027130" TEXT="Variante f&#xfc;r bidirektionale Suche">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1536018956285" ID="ID_128441804" MODIFIED="1537050078736" TEXT="einfach CursorGear als Quelle verwenden">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#435e98" CREATED="1536357666667" FOLDED="true" ID="ID_886527146" MODIFIED="1537050144836" TEXT="Design-Kritik">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1536357672802" ID="ID_2301559" MODIFIED="1536357696186" TEXT="aktuelles Design ist minimalistisch aber nicht elegant">
 <icon BUILTIN="yes"/>
 </node>
@@ -32213,8 +32245,8 @@
 </html></richcontent>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1536358257081" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536357878006" ID="ID_1225195123" MODIFIED="1537050011562" TEXT="Aufr&#xe4;umen und nachr&#xfc;sten">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536357891412" FOLDED="true" ID="ID_942897075" MODIFIED="1536717539462" TEXT="den Basis-Layer eliminieren">
 <linktarget COLOR="#4471b4" DESTINATION="ID_942897075" ENDARROW="Default" ENDINCLINATION="37;-79;" ID="Arrow_ID_537236489" SOURCE="ID_1163131751" STARTARROW="None" STARTINCLINATION="30;44;"/>
 <icon BUILTIN="button_ok"/>
@@ -32321,9 +32353,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536958590136" ID="ID_1848331022" MODIFIED="1536958932753" TEXT="Refactoring Pipeline-Struktur">
+<node COLOR="#338800" CREATED="1536958590136" ID="ID_1848331022" MODIFIED="1537050002466" TEXT="Refactoring Pipeline-Struktur">
 <linktarget COLOR="#81445a" DESTINATION="ID_1848331022" ENDARROW="Default" ENDINCLINATION="72;-412;" ID="Arrow_ID_1608996048" SOURCE="ID_1302534828" STARTARROW="None" STARTINCLINATION="672;68;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1536958603857" ID="ID_610488133" MODIFIED="1536958622137" TEXT="das urspr&#xfc;ngliche Implementierungs-Konzept scheitert">
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
@@ -32462,9 +32494,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022195013" ID="ID_1801625619" MODIFIED="1537022214939" TEXT="Korrektheit der Auswertungs-Logik">
-<icon BUILTIN="flag-yellow"/>
-<node COLOR="#338800" CREATED="1537022206627" ID="ID_983878679" MODIFIED="1537043798684" TEXT="mit komplexem Funktor">
+<node COLOR="#338800" CREATED="1537022195013" ID="ID_1801625619" MODIFIED="1537050004022" TEXT="Korrektheit der Auswertungs-Logik">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537022206627" FOLDED="true" ID="ID_983878679" MODIFIED="1537050008982" TEXT="mit komplexem Funktor">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537022226504" ID="ID_1825074472" MODIFIED="1537024319743" TEXT="faul?">
 <richcontent TYPE="NOTE"><html>
@@ -32502,41 +32534,15 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537022216506" ID="ID_794497840" MODIFIED="1537022219986" TEXT="mit Backtracking">
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
-</node>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018420398" ID="ID_41628967" MODIFIED="1536326452308" TEXT="Adaptieren der Quell-Datensequenz">
-<icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1536018880168" ID="ID_1619721301" MODIFIED="1536326442522" TEXT="macht normalerweise TreeExplorer">
-<linktarget COLOR="#a9b4c1" DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" SOURCE="ID_1700266521" STARTARROW="None" STARTINCLINATION="76;-5;"/>
-<icon BUILTIN="button_ok"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018887223" ID="ID_832237706" MODIFIED="1536326437258" TEXT="speziell: gear switch">
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1536018442123" ID="ID_829730232" MODIFIED="1536329759111" TEXT="Abk&#xfc;rzung f&#xfc;r direkten Match">
-<icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1536018985450" ID="ID_1700266521" MODIFIED="1536329755895" TEXT="Wert-Typ deduzieren">
-<arrowlink DESTINATION="ID_1619721301" ENDARROW="Default" ENDINCLINATION="129;0;" ID="Arrow_ID_1721152439" STARTARROW="None" STARTINCLINATION="76;-5;"/>
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1536019008151" ID="ID_29813547" MODIFIED="1536329757422" TEXT="equality comparision in Lambda">
+<node COLOR="#338800" CREATED="1537022216506" ID="ID_794497840" MODIFIED="1537050005604" TEXT="mit Backtracking">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018471975" ID="ID_1115030606" MODIFIED="1536018481902" TEXT="Variante f&#xfc;r bidirektionale Suche">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018956285" ID="ID_128441804" MODIFIED="1536018975076" TEXT="in CursorGear einwickeln">
-<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1536018524436" TEXT="Unit-Test: IterChainSearch_test">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535894132587" ID="ID_1888561007" MODIFIED="1537050042593" TEXT="Unit-Test: IterChainSearch_test">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536018569210" ID="ID_1083474400" MODIFIED="1536018578102" TEXT="Test-Fixture">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536018580388" ID="ID_186304417" MODIFIED="1536018584425" TEXT="lovely spam">
@@ -32549,11 +32555,11 @@
 <node COLOR="#338800" CREATED="1536018539621" ID="ID_1857591081" MODIFIED="1536717648741" TEXT="simpleSearch()">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018544936" ID="ID_1750921303" MODIFIED="1536018557580" TEXT="chainedIteration()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018544936" ID="ID_1750921303" MODIFIED="1537050039988" TEXT="chainedIteration()">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536018552912" ID="ID_385004210" MODIFIED="1536018557955" TEXT="backtracking()">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1536018552912" ID="ID_385004210" MODIFIED="1537050041216" TEXT="backtracking()">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 0c7996fe90b94d2522d2391c4473418d77acb0b5 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 16 Sep 2018 03:02:22 +0200
Subject: [PATCH 094/178] EventLog: drop-in the new IterChainSerach engine

- need to use dedicated steps in the chain for every added condition now

- seems to break the logic on tests on non-match.
  This doesn't come as a surprise, since backtracking can be expected
  to reveal additional solutions.

NOTE: some tests broken, to be investigated

est-event-log-test.cpp:228: thread_1: verify_callLogging: (log.ensureNot("fun").after("fun").after("fun2"))
---
 src/lib/test/event-log.hpp |  19 ++--
 wiki/thinkPad.ichthyo.mm   | 188 ++++++++++++++++++++++++++++++-------
 2 files changed, 167 insertions(+), 40 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index c4e9d9686..5e13b2019 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -45,7 +45,7 @@
 
 #include "lib/error.hpp"
 #include "lib/idi/entry-id.hpp"
-#include "lib/iter-tree-explorer.hpp"
+#include "lib/iter-chain-search.hpp"
 #include "lib/iter-cursor.hpp"
 #include "lib/format-util.hpp"
 #include "lib/format-cout.hpp"
@@ -78,8 +78,7 @@ namespace test{
     buildSearchFilter(Log const& srcSeq)
     {
       using Cursor  = lib::iter::CursorGear<Log::const_iterator>;
-      return treeExplore (Cursor{srcSeq.begin(), srcSeq.end()})
-                .mutableFilter();
+      return iter::chainSearch (Cursor{srcSeq.begin(), srcSeq.end()});
     }
   }
   
@@ -327,15 +326,23 @@ namespace test{
       void
       attachNextSerchStep (COND&& filter, Direction direction)
         {
-          solution_.reverse (BACKWARD == direction);
-          solution_.setNewFilter (forward<COND> (filter));
+          solution_.addStep ([predicate{forward<COND> (filter)}, direction]
+                             (auto& filter)
+                               {
+                                 filter.reverse (BACKWARD == direction);
+                                 filter.setNewFilter (predicate);
+                               });
         }
       
       template<typename COND>
       void
       refineSerach (COND&& additionalFilter)
         {
-          solution_.andFilter (forward<COND> (additionalFilter));
+          solution_.addStep ([predicate{forward<COND> (additionalFilter)}]
+                             (auto& filter)
+                               {
+                                 filter.andFilter (predicate);
+                               });
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0dbe24d12..ef1167ee5 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31164,8 +31164,7 @@
       ohnehin laufen schon ziemlich alle konkreten Layer-Builder nach einem Schema-F
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1536958979046" ID="ID_700334374" MODIFIED="1537050782627" TEXT="Typ per Template-Parameter &#xfc;bergeben">
@@ -31478,8 +31477,7 @@
       da sich die Iteratoren <i>wirklich</i>&#160;unterscheiden k&#246;nnen d&#252;rfen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1536508169610" ID="ID_1935713564" MODIFIED="1536508703334" TEXT="beide Funktoren direkt in expandChildren() verwendet">
@@ -31522,8 +31520,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="down"/>
 </node>
 <node CREATED="1536508343419" ID="ID_1905482399" MODIFIED="1536508782549" TEXT="und hat daf&#xfc;r einfacheren Code und klarere Template-Argumente">
@@ -31536,8 +31533,7 @@
       und <b>das</b>&#160;ist das Argument, das sticht
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="up"/>
 </node>
 <node CREATED="1536508376894" ID="ID_1216206461" MODIFIED="1536508787136" TEXT="Erhalten der alten L&#xf6;sung w&#xfc;rde zwei redundante Code-Pfade erfordern">
@@ -31550,8 +31546,7 @@
       ...will sagen, wenn schon eine neue L&#246;sung, dann von A bis Z
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="up"/>
 </node>
 </node>
@@ -31667,8 +31662,126 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
 <node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
+<node CREATED="1537058259201" ID="ID_1249469718" MODIFIED="1537058264460" TEXT="Anpassungen">
+<node COLOR="#338800" CREATED="1537058272183" ID="ID_1629184923" MODIFIED="1537059375100" TEXT="Alles per Filter-Chain machen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537058280542" ID="ID_1820744744" MODIFIED="1537058284929" TEXT="ist zwar aufwendiger..."/>
+<node CREATED="1537058285286" ID="ID_1430429521" MODIFIED="1537058383182" TEXT="aber das einzig Sinnvolle">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn durch das Backtracking
+    </p>
+    <p>
+      w&#252;rde man nun ziemlich undurchsichtige Misch-Zust&#228;nde bekommen.
+    </p>
+    <p>
+      Und: jeder direkt gesetzte Filter k&#246;nnte die Invariante im Expander verletzen
+    </p>
+    <p>
+      (weil er einen Kind-Iterator leer machen k&#246;nnte, ohne da&#223; dieser gePOPpt wird)
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1537058418739" ID="ID_232136872" MODIFIED="1537059386568" TEXT="Umstellung">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537058434897" ID="ID_1021441779" MODIFIED="1537059381029" TEXT="attachNextSerchStep">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537058445064" ID="ID_1377843323" MODIFIED="1537058450843" TEXT="kompletten Filter-Konfigurator"/>
+<node CREATED="1537058451527" ID="ID_1849109468" MODIFIED="1537058459138" TEXT="stets auch die Richtung setzen"/>
+</node>
+<node COLOR="#338800" CREATED="1537058470628" ID="ID_244817932" MODIFIED="1537059384506" TEXT="refineSerach">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537058473468" ID="ID_1720204552" MODIFIED="1537058480839" TEXT="ebenfalls kompletten Filter-Konfigurator"/>
+<node CREATED="1537058485338" ID="ID_738059771" MODIFIED="1537058694225" TEXT="Vorsicht: das gibt nun zus&#xe4;ztliche L&#xf6;sungen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      weil wir uns bisher bei allen vorausgegangenen Bedingungen
+    </p>
+    <p>
+      auf den ersten Match &quot;festgebissen&quot; haben, und nur &#252;ber den Iterator mit der
+    </p>
+    <p>
+      zuletzt gesetzen Bedingung weiter iteriert haben.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      K&#252;nftig gibt es nach jedem Fail ein Backtracking.
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1537058600555" ID="ID_717984419" MODIFIED="1537058656433" TEXT="sollte aber bei reinen AND-Klauseln egal sein">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...d.h es findet zwar ein Backtracking statt, aber wenn alle konjunktiven Klauseln gesetzt sind,
+    </p>
+    <p>
+      sollte sich erneut ein FAIL ergeben
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1537058662202" ID="ID_654601259" MODIFIED="1537058688483" TEXT="und blo&#xdf; zus&#xe4;tzlichen overhead bei NOT-Match-Tests bewirken"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537059394146" TEXT="Tests scheitern...">
+<icon BUILTIN="flag-pink"/>
+<node CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537059453857" TEXT="EventLog_test">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      est-event-log-test.cpp:228:&#160;&#160;verify_callLogging: (log.ensureNot(&quot;fun&quot;).after(&quot;fun&quot;).after(&quot;fun2&quot;))
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+<node CREATED="1537059455216" ID="ID_318014472" MODIFIED="1537059471791">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Verdacht: <b>Negation</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537059407506" TEXT="BusTerm_test"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1537059357301" ID="ID_1501687281" MODIFIED="1537059360761" TEXT="Beobachtungen">
 <node CREATED="1536368121224" ID="ID_684768731" MODIFIED="1536368139195">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -31680,15 +31793,32 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1536368144661" ID="ID_184622907" MODIFIED="1536368158636" TEXT="BusTerm_test = 12 MB">
+<node CREATED="1536368144661" ID="ID_184622907" MODIFIED="1537058233640" TEXT="BusTerm_test = 13.1 MB">
 <icon BUILTIN="smiley-angry"/>
 </node>
-<node CREATED="1536368166242" ID="ID_280400966" MODIFIED="1536368177458" TEXT="EventLog_test = 6 MB">
+<node CREATED="1536368166242" ID="ID_280400966" MODIFIED="1537058245743" TEXT="EventLog_test = 6.2 MB">
+<icon BUILTIN="smiley-angry"/>
+</node>
+</node>
+<node CREATED="1537058044500" ID="ID_637125647" MODIFIED="1537058178984" TEXT="Aber: Such-Iterator im Event-Log ist nicht der Hauptschuldige">
+<icon BUILTIN="idea"/>
+<node CREATED="1537058071056" ID="ID_1523796232" MODIFIED="1537058162420" TEXT="Versuchsweise auskommentiert"/>
+<node CREATED="1536368144661" ID="ID_1550616773" MODIFIED="1537058237543" TEXT="BusTerm_test = 11 MB">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+<node CREATED="1536368166242" ID="ID_1244843669" MODIFIED="1537058249425" TEXT="EventLog_test = 4 MB">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+</node>
+<node CREATED="1537059265873" ID="ID_798187553" MODIFIED="1537059347543" TEXT="leider merkt man aber die Umstellung auf IterChainSearch">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1536368144661" ID="ID_1266326166" MODIFIED="1537059319775" TEXT="BusTerm_test = 14.3 MB">
+<icon BUILTIN="smiley-oh"/>
+</node>
+<node CREATED="1536368166242" ID="ID_1222359374" MODIFIED="1537059337516" TEXT="EventLog_test = 7.4 MB">
 <icon BUILTIN="smiley-angry"/>
 </node>
 </node>
-<node CREATED="1536368188063" ID="ID_1725693994" MODIFIED="1536368197862" TEXT="kein Wunder bei den Typen...">
-<icon BUILTIN="ksmiletris"/>
 </node>
 </node>
 </node>
@@ -31900,8 +32030,7 @@
       Nicht nur auf den aktuellen Wert (=dereferenzierter Iterator, d.h. die Funktion yield())
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="smily_bad"/>
 </node>
@@ -32312,8 +32441,7 @@
       ...d.h. direkt das Pr&#228;dikat, und nicht eine Funktion, die den Filter konfiguriert
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536792241949" ID="ID_613611906" MODIFIED="1536792249583" TEXT="setzt direkt nur ein neues Pr&#xe4;dikat"/>
 <node CREATED="1536792250124" ID="ID_10955924" MODIFIED="1536792257390" TEXT="spart viel Syntax ein">
@@ -32343,8 +32471,7 @@
       und manchen komischen Workaround implementiert.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1536845594971" ID="ID_1942437093" MODIFIED="1536845602373" TEXT="Eclipse updaten?">
 <icon BUILTIN="hourglass"/>
@@ -32400,8 +32527,7 @@
       weil ich dann auf dem IterChainSearch unmittelbar die builder-Funktionen definieren kann
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1536977661129" ID="ID_700598895" MODIFIED="1537022064594" TEXT="Vorsicht: brauche nochmal IterableDecorator">
@@ -32414,8 +32540,7 @@
       denn: TreeExplorer == IterableDecorator&lt; Pipeline &gt;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1536977678590" ID="ID_747407291" MODIFIED="1537022078175" TEXT="sonst wird meine spezielle IterNext() nicht aufgerufen">
 <richcontent TYPE="NOTE"><html>
@@ -32436,8 +32561,7 @@
       und der wickellt direkt den Expander ein
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="broken-line"/>
 </node>
 <node CREATED="1537022084564" ID="ID_447764404" MODIFIED="1537022104224" TEXT="brauche doch einen top-Level TreeExplorer + custom-Layer">
@@ -32458,8 +32582,7 @@
       konfiguriert <i>danach direkt</i>&#160;den Filter
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1536969507092" ID="ID_1318810550" MODIFIED="1536977610592" TEXT="braucht dazu eine Hintert&#xfc;r im Explorer-Layer">
 <icon BUILTIN="button_ok"/>
@@ -32486,8 +32609,7 @@
       einem Solchen Fall insgesamt vom Compiler zur&#252;ckgewiesen)
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
@@ -32508,8 +32630,7 @@
       sausage-bacon-tomato-and-sausage-spam-spam-bacon-spam-tomato-and-spam-spam-bacon-tomato-and-spam-bacon-tomato-and-spam-tomato-and-spam
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1537024323509" ID="ID_22995423" MODIFIED="1537024327665" TEXT="ja">
 <icon BUILTIN="ksmiletris"/>
@@ -32529,8 +32650,7 @@
       sausage-bacon-tomato-and-spam-spam-bacon-spam-tomato-and-spam-bacon-tomato-and-bacon-tomato-and-tomato-and
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>

From 991b8ace821f37f65cab39723badba89e62409ef Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 19 Sep 2018 00:21:09 +0200
Subject: [PATCH 095/178] EventLog: rectify the quirky logic for before / after
 chains

due to the lack of real backtracking, the existing solution
relied on a quirk, and started the before / after chained search
conditions /at/ the current element, not after / before it.

Now we're able to remove this somewhat surprising behaviour, yet to do so
we also need to introduce basic "just search" variations of all search
operations, in order to define the initial condition for a chained search.
Without that, the first condition in a chain would never be able to
match on the header entry of the log
---
 src/lib/test/event-log.hpp | 92 +++++++++++++++++++++++++++++++------
 wiki/thinkPad.ichthyo.mm   | 94 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+), 15 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 5e13b2019..0e3f36c46 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -319,19 +319,23 @@ namespace test{
       /* === configure the underlying search engine === */
       
       enum Direction {
-        FORWARD, BACKWARD
+        FORWARD, BACKWARD, CURRENT
       };
       
       template<typename COND>
       void
       attachNextSerchStep (COND&& filter, Direction direction)
         {
-          solution_.addStep ([predicate{forward<COND> (filter)}, direction]
-                             (auto& filter)
-                               {
-                                 filter.reverse (BACKWARD == direction);
-                                 filter.setNewFilter (predicate);
-                               });
+          if (CURRENT == direction)
+            solution_.search (forward<COND> (filter));
+          else
+            solution_.addStep ([predicate{forward<COND> (filter)}, direction]
+                               (auto& filter)
+                                 {
+                                   filter.reverse (BACKWARD == direction);
+                                   ++filter;
+                                   filter.setNewFilter (predicate);
+                                 });
         }
       
       template<typename COND>
@@ -363,6 +367,60 @@ namespace test{
         }
       
       
+      /**
+       * basic search function: continue linear lookup over the elements of the
+       * EventLog to find a match (substring match) of the given text. The search begins
+       * at the current position and proceeds in the currently configured direction.
+       * Initially the search starts at the first record and proceeds forward. 
+       */
+      EventMatch&
+      locate (string match)
+        {
+          attachNextSerchStep (find(match), CURRENT);
+          evaluateQuery ("match(\""+match+"\")");
+          return *this;
+        }
+      
+      /** basic search like locate() but with the given regular expression */
+      EventMatch&
+      locateMatch (string regExp)
+        {
+          attachNextSerchStep (findRegExp(regExp), CURRENT);
+          evaluateQuery ("find-RegExp(\""+regExp+"\")");
+          return *this;
+        }
+      
+      /** basic search for a matching  "event"
+       * @param match perform a substring match against the arguments of the event
+       * @see beforeEvent() for a description of possible "events"
+       */
+      EventMatch&
+      locateEvent (string match)
+        {
+          attachNextSerchStep (findEvent(match), CURRENT);
+          evaluateQuery ("match-event(\""+match+"\")");
+          return *this;
+        }
+      
+      EventMatch&
+      locateEvent (string classifier, string match)
+        {
+          attachNextSerchStep (findEvent(classifier,match), CURRENT);
+          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
+          return *this;
+        }
+      
+      /** basic search for some specific function invocation
+       * @param match perform a substring match against the name of the function invoked
+       */
+      EventMatch&
+      locateCall (string match)
+        {
+          attachNextSerchStep (findCall(match), CURRENT);
+          evaluateQuery ("match-call(\""+match+"\")");
+          return *this;
+        }
+      
       /**
        * find a match (substring match) of the given text
        * in an EventLog entry after the current position
@@ -860,14 +918,15 @@ namespace test{
        *  The resulting matcher object will qualify on any log entry
        *  containing the given string. By adding subsequent further
        *  query expressions on the returned [matcher object](\ref EventMatch),
-       *  the query can be refined. Refining a query might induce backtracking.
-       *  The final result can be retrieved by `bool` conversion
+       *  the query can be refined. Moreover it is possible to chain up further
+       *  search queries, which will be executing starting from the position of the
+       *  previous match. The final result can be retrieved by `bool` conversion
        */
       EventMatch
       verify (string match)  const
         {
           EventMatch matcher(*log_);
-          matcher.before (match);   // "the start of the log is before the match"
+          matcher.locate (match);   // new matcher starts linear search from first log element
           return matcher;
         }
       
@@ -881,7 +940,7 @@ namespace test{
       verifyMatch (string regExp)  const
         {
           EventMatch matcher(*log_);
-          matcher.beforeMatch (regExp);
+          matcher.locateMatch (regExp);
           return matcher;
         }
       
@@ -896,15 +955,18 @@ namespace test{
       verifyEvent (string match)  const
         {
           EventMatch matcher(*log_);
-          matcher.beforeEvent (match);
+          matcher.locateEvent (match);
           return matcher;
         }
       
+      /** start a query to match for an specific kind of element
+       * @param classifier select kind of event by match on type or ID
+       */
       EventMatch
       verifyEvent (string classifier, string match)  const
         {
           EventMatch matcher(*log_);
-          matcher.beforeEvent (classifier, match);
+          matcher.locateEvent (classifier, match);
           return matcher;
         }
       
@@ -922,7 +984,7 @@ namespace test{
       verifyCall (string match)  const
         {
           EventMatch matcher(*log_);
-          matcher.beforeCall (match);
+          matcher.locateCall (match);
           return matcher;
         }
       
@@ -940,7 +1002,7 @@ namespace test{
         {
           EventMatch matcher(*log_);
           matcher.look_for_match_ = false; // flip logic; fail if match succeeds
-          matcher.before (match);
+          matcher.locate (match);
           return matcher;
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index ef1167ee5..77dd75431 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31775,8 +31775,64 @@
 </html>
 </richcontent>
 </node>
+<node CREATED="1537230016114" ID="ID_1768475576" MODIFIED="1537309001137" TEXT="nein... es war bisher kaputt">
+<icon BUILTIN="broken-line"/>
+<node CREATED="1537230071267" ID="ID_325369118" MODIFIED="1537230244388" TEXT="und funktioniert jetzt korrekt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      fun after fun matcht auf den immer gleichen Record
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1537230078498" ID="ID_746060961" MODIFIED="1537230098331" TEXT="wir setzen am vorherigen Match auf"/>
+<node CREATED="1537230100031" ID="ID_831756745" MODIFIED="1537230107546" TEXT="das ist &#xfc;berraschend"/>
+<node COLOR="#435e98" CREATED="1537230108686" ID="ID_256131209" MODIFIED="1537308972344" TEXT="sollten wir das &#xe4;ndern?">
+<icon BUILTIN="help"/>
+<node CREATED="1537230118588" ID="ID_173358506" MODIFIED="1537308994452" TEXT="principle of least surprise">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1537230125716" ID="ID_2590903" MODIFIED="1537308991177" TEXT="aber...">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1537230132898" ID="ID_595305834" MODIFIED="1537230142973" TEXT="manche Tests haben das ausgen&#xfc;tzt">
+<node CREATED="1537230371514" ID="ID_1967930414" MODIFIED="1537230375734" TEXT="real world?"/>
+</node>
+<node CREATED="1537230143633" ID="ID_1378112667" MODIFIED="1537230158723" TEXT="brauche dann eigene Einstiegs-Methode">
+<node CREATED="1537308984470" ID="ID_1575859366" MODIFIED="1537308986984" TEXT="besser so"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537059407506" TEXT="BusTerm_test"/>
+<node CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537230724855" TEXT="Fix">
+<node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537308952574" TEXT="before / after gehen stets einen Schritt">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537230751079" ID="ID_1776084088" MODIFIED="1537308946695" TEXT="neue reine Filter-Funktionen">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537230790179" ID="ID_1688121233" MODIFIED="1537308959793" TEXT="wechseln nur den Filter">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537230809608" ID="ID_132845471" MODIFIED="1537308961598" TEXT="attached as Step">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1537230937167" ID="ID_83896289" MODIFIED="1537230950961" TEXT="Namen">
+<node CREATED="1537230952405" ID="ID_36863841" MODIFIED="1537230954560" TEXT="locate"/>
+<node CREATED="1537230955156" ID="ID_1450598514" MODIFIED="1537230957952" TEXT="locateMatch"/>
+<node CREATED="1537230958684" ID="ID_288175427" MODIFIED="1537230961695" TEXT="locateEvent"/>
+<node CREATED="1537230962475" ID="ID_1446509249" MODIFIED="1537230964919" TEXT="locateCall"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1537230778540" ID="ID_985799795" MODIFIED="1537308964650" TEXT="diese auch f&#xfc;r den Einstieg verwenden">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
@@ -31820,6 +31876,44 @@
 </node>
 </node>
 </node>
+<node CREATED="1537059850803" ID="ID_253192903" MODIFIED="1537059853438" TEXT="Plan">
+<node CREATED="1537059854290" ID="ID_1281790716" MODIFIED="1537059867700" TEXT="der Typ der Search-Engine mu&#xdf; nicht verborgen werden"/>
+<node CREATED="1537059868337" ID="ID_138143272" MODIFIED="1537059878979" TEXT="es kann daher ein direktes Objektfeld bleiben"/>
+<node CREATED="1537059879759" ID="ID_893108945" MODIFIED="1537059904472" TEXT="alle Suchpr&#xe4;dikate sind Lambdas -&gt; Template Argumente"/>
+<node CREATED="1537059905107" ID="ID_133126017" MODIFIED="1537059924085" TEXT="d.h. auch die Such-Funktionen m&#xfc;ssen nach hinten in das CPP gedr&#xfc;ckt werden"/>
+<node CREATED="1537059925313" ID="ID_1283278546" MODIFIED="1537059940483" TEXT="Problem Var-Arg">
+<node CREATED="1537059941287" ID="ID_1072965326" MODIFIED="1537059944938" TEXT="Argument-Match"/>
+<node CREATED="1537059945310" ID="ID_1104771437" MODIFIED="1537059950057" TEXT="RegExp-Sequenz"/>
+<node CREATED="1537059950597" ID="ID_1688685593" MODIFIED="1537059976646" TEXT="beide erzeugen aber einen STL-container als Intermediary">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1537059978146" ID="ID_1403964414" MODIFIED="1537059984405" TEXT="d.h. man kann dazwischen schneiden"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537059997529" TEXT="Umbau">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537060024165" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060024891" ID="ID_416527676" MODIFIED="1537060038043" TEXT="Ctor nach hinten schieben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060040409" ID="ID_440163527" MODIFIED="1537060051953" TEXT="Auswerte-Logik nach hinten schieben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060054767" ID="ID_1081334498" MODIFIED="1537060092467" TEXT="Problem: private Matcher-Builder">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060094809" ID="ID_442340693" MODIFIED="1537060104954" TEXT="in freie Template-Funktionen verwandeln?">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060267290" ID="ID_1006625301" MODIFIED="1537060278162" TEXT="auch die direkten Filter-Konfigurier-Funktionen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060121158" ID="ID_1857002867" MODIFIED="1537060136293" TEXT="Such-Funktionen nach hinten reichen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From 3994f805b071ab42bb13dea39460e85482847911 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 19 Sep 2018 01:24:26 +0200
Subject: [PATCH 096/178] EventLog: further bugfix to get the augmented
 sequencing logic correct.

For the before / after chaining search functions,
we now do one single step in the respective direction before evaluating
the new (next) filter condition. However, we also need to *deactivate* the
previous condition, otherwise that single "step" might cause us to jump
or even exhaust the underlying filter, due to the old filter condition
still being applied.
---
 src/lib/test/event-log.hpp |  3 +-
 wiki/thinkPad.ichthyo.mm   | 58 ++++++++++++++++++++++++++++++++++----
 2 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 0e3f36c46..013823ab5 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -333,7 +333,8 @@ namespace test{
                                (auto& filter)
                                  {
                                    filter.reverse (BACKWARD == direction);
-                                   ++filter;
+                                   filter.disableFilter();  // deactivate any filtering temporarily 
+                                   ++filter;               //  move one step in the required direction
                                    filter.setNewFilter (predicate);
                                  });
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 77dd75431..6f4704ff0 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31762,7 +31762,7 @@
 </html>
 </richcontent>
 <icon BUILTIN="info"/>
-<node CREATED="1537059455216" ID="ID_318014472" MODIFIED="1537059471791">
+<node CREATED="1537059455216" ID="ID_318014472" MODIFIED="1537309403475">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -31774,6 +31774,7 @@
   </body>
 </html>
 </richcontent>
+<icon BUILTIN="button_cancel"/>
 </node>
 <node CREATED="1537230016114" ID="ID_1768475576" MODIFIED="1537309001137" TEXT="nein... es war bisher kaputt">
 <icon BUILTIN="broken-line"/>
@@ -31792,7 +31793,8 @@
 </node>
 <node CREATED="1537230078498" ID="ID_746060961" MODIFIED="1537230098331" TEXT="wir setzen am vorherigen Match auf"/>
 <node CREATED="1537230100031" ID="ID_831756745" MODIFIED="1537230107546" TEXT="das ist &#xfc;berraschend"/>
-<node COLOR="#435e98" CREATED="1537230108686" ID="ID_256131209" MODIFIED="1537308972344" TEXT="sollten wir das &#xe4;ndern?">
+<node COLOR="#435e98" CREATED="1537230108686" ID="ID_256131209" MODIFIED="1537309438059" TEXT="sollten wir das &#xe4;ndern?">
+<arrowlink COLOR="#73a3ae" DESTINATION="ID_1088562812" ENDARROW="Default" ENDINCLINATION="255;0;" ID="Arrow_ID_1747758330" STARTARROW="None" STARTINCLINATION="191;47;"/>
 <icon BUILTIN="help"/>
 <node CREATED="1537230118588" ID="ID_173358506" MODIFIED="1537308994452" TEXT="principle of least surprise">
 <icon BUILTIN="button_ok"/>
@@ -31808,13 +31810,59 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537309349547" ID="ID_1102778316" MODIFIED="1537309388433" TEXT="bestehende Tests korrigieren">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537309372867" FOLDED="true" ID="ID_1847253086" MODIFIED="1537312895344" TEXT="verify_simpleUsage">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537312791212" ID="ID_510039930" MODIFIED="1537312803182" TEXT="weiterer Fehler"/>
+<node CREATED="1537312804010" ID="ID_1081351208" MODIFIED="1537312892636" TEXT="vorherigien Filter vor dem Step abschalten">
+<arrowlink COLOR="#cb8fa1" DESTINATION="ID_665208250" ENDARROW="Default" ENDINCLINATION="55;0;" ID="Arrow_ID_1772260988" STARTARROW="None" STARTINCLINATION="-39;46;"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537309378682" ID="ID_129678233" MODIFIED="1537309381368" TEXT="verify_callLogging">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537059407506" TEXT="BusTerm_test"/>
 <node CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537230724855" TEXT="Fix">
-<node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537308952574" TEXT="before / after gehen stets einen Schritt">
+<node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537309430399" TEXT="before / after gehen stets einen Schritt">
+<linktarget COLOR="#73a3ae" DESTINATION="ID_1088562812" ENDARROW="Default" ENDINCLINATION="255;0;" ID="Arrow_ID_1747758330" SOURCE="ID_256131209" STARTARROW="None" STARTINCLINATION="191;47;"/>
 <icon BUILTIN="button_ok"/>
+<node CREATED="1537312702960" HGAP="37" ID="ID_665208250" MODIFIED="1537312886293" VSHIFT="15">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und zwar mit <i>abgeschaltetem </i>Filter
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      f&#252;r diesen einen Schritt
+    </p>
+    <p>
+      mu&#223; die Filter-Funktion vor&#252;bergehend deaktiviert werden,
+    </p>
+    <p>
+      damit wir exakt das n&#228;chste / vorhergehende Element bekommen
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#cb8fa1" DESTINATION="ID_665208250" ENDARROW="Default" ENDINCLINATION="55;0;" ID="Arrow_ID_1772260988" SOURCE="ID_1081351208" STARTARROW="None" STARTINCLINATION="-39;46;"/>
+<icon BUILTIN="idea"/>
 </node>
-<node COLOR="#338800" CREATED="1537230751079" ID="ID_1776084088" MODIFIED="1537308946695" TEXT="neue reine Filter-Funktionen">
+</node>
+<node COLOR="#338800" CREATED="1537230751079" FOLDED="true" ID="ID_1776084088" MODIFIED="1537309459509" TEXT="neue reine Filter-Funktionen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537230790179" ID="ID_1688121233" MODIFIED="1537308959793" TEXT="wechseln nur den Filter">
 <icon BUILTIN="button_ok"/>
@@ -31828,13 +31876,13 @@
 <node CREATED="1537230958684" ID="ID_288175427" MODIFIED="1537230961695" TEXT="locateEvent"/>
 <node CREATED="1537230962475" ID="ID_1446509249" MODIFIED="1537230964919" TEXT="locateCall"/>
 </node>
-</node>
 <node COLOR="#338800" CREATED="1537230778540" ID="ID_985799795" MODIFIED="1537308964650" TEXT="diese auch f&#xfc;r den Einstieg verwenden">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
 </node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1537059357301" ID="ID_1501687281" MODIFIED="1537059360761" TEXT="Beobachtungen">

From 03a1d5819834b933db45668df5d770a456ca0a23 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 19 Sep 2018 02:29:02 +0200
Subject: [PATCH 097/178] EventLog: verify and complete the TestEventLog_test

can now cover all the cases as initially intended,
including backtracking
---
 src/lib/test/event-log.hpp                 |  6 +++
 tests/00support.tests                      |  6 +++
 tests/library/test/test-event-log-test.cpp | 16 +++++---
 wiki/thinkPad.ichthyo.mm                   | 43 +++++++++++++++++-----
 4 files changed, 55 insertions(+), 16 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 013823ab5..90897c7f0 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -32,6 +32,12 @@
  ** 
  ** Failure of match prints a detailed trace message to `STDERR`, in order
  ** to deliver a precise indication what part of the condition failed.
+ ** @note this sequence prints the matches succeeding _at the point_ where each
+ **       condition is added to the chain. Adding more conditions, especially when
+ **       combined with changed search direction, might lead to backtracking, which
+ **       happens silently within the search engine, without printing any further
+ **       diagnostics. This means: the sequence of matches you see in this diagnostic
+ **       output is not necessarily the last match patch, which lead to the final failure
  ** 
  ** @see TestEventLog_test
  ** @see [usage example](\ref AbstractTangible_test)
diff --git a/tests/00support.tests b/tests/00support.tests
index 6d11e9424..68857d8d1 100644
--- a/tests/00support.tests
+++ b/tests/00support.tests
@@ -34,6 +34,12 @@ err-lit: ..before match("beans") @ Rec(EventLogHeader| this = baked beans )
 err-lit: ..before match("spam") @ Rec(event|{spam})
 err-lit: ..after HEAD baked beans
 err-lit: __Log_condition_violated__
+err-lit: FAILED to match("spam")
+err-lit: ..before match("spam") @ Rec(event|{spam})
+err-lit: ..before match("ham") @ Rec(event|{ham})
+err-lit: ..before match("beans") @ Rec(EventLogHeader| this = baked beans )
+err-lit: ..after HEAD baked beans
+err-lit: __Log_condition_violated__
 err-lit: FOUND at least match("ham") @ Rec(event|{ham})
 err-lit: ..after match("eggs") @ Rec(EventLogHeader| this = eggs )
 err-lit: ..before match("spam") @ Rec(event|{spam})
diff --git a/tests/library/test/test-event-log-test.cpp b/tests/library/test/test-event-log-test.cpp
index c6ad29d90..f8293bbec 100644
--- a/tests/library/test/test-event-log-test.cpp
+++ b/tests/library/test/test-event-log-test.cpp
@@ -110,8 +110,14 @@ namespace test{
           CHECK (not log.verify("spam").after("beans").after("ham"));
           
           log.event("beans");
-          CHECK (log.verify("beans").after("spam"));
-        }
+          CHECK (log.verify("beans").after("spam"));   // Note: Backtracking! The first match on beans fails,
+                                                       //       only the match on second beans succeeds.
+          
+          // consecutive matches always move by at least one step
+          CHECK (    log.verify("beans").after("ham").after("spam")              .after("baked"));
+          CHECK (not log.verify("beans").after("ham").after("spam").after("spam").after("baked"));
+          CHECK (    log.verify("beans").after("ham").after("spam").locate("spam").locate("spam").after("baked"));
+        }                                                        // ^^^^^^ locate re-applies at current pos without moving
       
       
       void
@@ -342,14 +348,12 @@ namespace test{
                     "with shallots and aubergines garnished with truffle pate, brandy and with a fried egg on top and spam");
           
           CHECK (log.verify("spam").before("(spam|").before("egg on top and spam"));
+          CHECK (log.verify("and spam").after("(spam|").after("spam!").before("bacon"));
           CHECK (log.ensureNot("and spam").after("(spam|").after("spam!").after("bacon"));
           
-          // note: each consecutive match starts with the same element, on which the previous one succeeded
-          CHECK (log.verify("spam").before("spam").before("spam").before("spam").before("spam").before("bacon"));
-          
           // RegExp on full String representation
           CHECK (log.verifyMatch("spam.+spam"));
-          CHECK (log.verifyMatch("spam.+spam").beforeMatch("spam(?!spam)"));
+          CHECK (log.verifyMatch("spam.+spam").beforeMatch("spam(?!.+spam)"));
           CHECK (log.verifyEvent("fatal","spam").afterMatch("(spam.*){15}"));
           
           // Cover all arguments with sequence of regular expressions
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 6f4704ff0..f63628e37 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31695,6 +31695,23 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1537058445064" ID="ID_1377843323" MODIFIED="1537058450843" TEXT="kompletten Filter-Konfigurator"/>
 <node CREATED="1537058451527" ID="ID_1849109468" MODIFIED="1537058459138" TEXT="stets auch die Richtung setzen"/>
+<node CREATED="1537316776292" ID="ID_507846374" MODIFIED="1537316870949" TEXT="hier nun stets einen Schritt machen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...um &quot;H&#228;ngenbleiben&quot; auf dem gleichen Element auszuschlie&#223;en.
+    </p>
+    <p>
+      Vorsicht: um sauber genau einen Schritt machen zu k&#246;nnen, m&#252;ssen wir explizit vor&#252;bergehend den Filter abschalten
+    </p>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#5174b2" DESTINATION="ID_256131209" ENDARROW="Default" ENDINCLINATION="-241;-10;" ID="Arrow_ID_73536182" STARTARROW="None" STARTINCLINATION="169;19;"/>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1537058470628" ID="ID_244817932" MODIFIED="1537059384506" TEXT="refineSerach">
 <icon BUILTIN="button_ok"/>
@@ -31749,7 +31766,7 @@
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537059394146" TEXT="Tests scheitern...">
 <icon BUILTIN="flag-pink"/>
-<node CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537059453857" TEXT="EventLog_test">
+<node COLOR="#338800" CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537316730803" TEXT="EventLog_test">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -31762,6 +31779,7 @@
 </html>
 </richcontent>
 <icon BUILTIN="info"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537059455216" ID="ID_318014472" MODIFIED="1537309403475">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -31793,8 +31811,9 @@
 </node>
 <node CREATED="1537230078498" ID="ID_746060961" MODIFIED="1537230098331" TEXT="wir setzen am vorherigen Match auf"/>
 <node CREATED="1537230100031" ID="ID_831756745" MODIFIED="1537230107546" TEXT="das ist &#xfc;berraschend"/>
-<node COLOR="#435e98" CREATED="1537230108686" ID="ID_256131209" MODIFIED="1537309438059" TEXT="sollten wir das &#xe4;ndern?">
+<node COLOR="#435e98" CREATED="1537230108686" ID="ID_256131209" MODIFIED="1537316863454" TEXT="sollten wir das &#xe4;ndern?">
 <arrowlink COLOR="#73a3ae" DESTINATION="ID_1088562812" ENDARROW="Default" ENDINCLINATION="255;0;" ID="Arrow_ID_1747758330" STARTARROW="None" STARTINCLINATION="191;47;"/>
+<linktarget COLOR="#5174b2" DESTINATION="ID_256131209" ENDARROW="Default" ENDINCLINATION="-241;-10;" ID="Arrow_ID_73536182" SOURCE="ID_507846374" STARTARROW="None" STARTINCLINATION="169;19;"/>
 <icon BUILTIN="help"/>
 <node CREATED="1537230118588" ID="ID_173358506" MODIFIED="1537308994452" TEXT="principle of least surprise">
 <icon BUILTIN="button_ok"/>
@@ -31810,8 +31829,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537309349547" ID="ID_1102778316" MODIFIED="1537309388433" TEXT="bestehende Tests korrigieren">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537309349547" ID="ID_1102778316" MODIFIED="1537315501823" TEXT="bestehende Tests korrigieren">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537309372867" FOLDED="true" ID="ID_1847253086" MODIFIED="1537312895344" TEXT="verify_simpleUsage">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1537312791212" ID="ID_510039930" MODIFIED="1537312803182" TEXT="weiterer Fehler"/>
@@ -31819,17 +31838,21 @@
 <arrowlink COLOR="#cb8fa1" DESTINATION="ID_665208250" ENDARROW="Default" ENDINCLINATION="55;0;" ID="Arrow_ID_1772260988" STARTARROW="None" STARTINCLINATION="-39;46;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537309378682" ID="ID_129678233" MODIFIED="1537309381368" TEXT="verify_callLogging">
+<node COLOR="#338800" CREATED="1537309378682" ID="ID_129678233" MODIFIED="1537315494792" TEXT="verify_callLogging">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537316714860" ID="ID_84746570" MODIFIED="1537316725828" TEXT="Tests zur Klarstellung erg&#xe4;nzen">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-</node>
 <node CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537059407506" TEXT="BusTerm_test"/>
-<node CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537230724855" TEXT="Fix">
-<node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537309430399" TEXT="before / after gehen stets einen Schritt">
+<node COLOR="#435e98" CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537315480594" TEXT="Fix">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537315479387" TEXT="before / after gehen stets einen Schritt">
 <linktarget COLOR="#73a3ae" DESTINATION="ID_1088562812" ENDARROW="Default" ENDINCLINATION="255;0;" ID="Arrow_ID_1747758330" SOURCE="ID_256131209" STARTARROW="None" STARTINCLINATION="191;47;"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537312702960" HGAP="37" ID="ID_665208250" MODIFIED="1537312886293" VSHIFT="15">
+<node CREATED="1537312702960" HGAP="37" ID="ID_665208250" MODIFIED="1537315479387" VSHIFT="15">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -31862,7 +31885,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537230751079" FOLDED="true" ID="ID_1776084088" MODIFIED="1537309459509" TEXT="neue reine Filter-Funktionen">
+<node COLOR="#338800" CREATED="1537230751079" FOLDED="true" ID="ID_1776084088" MODIFIED="1537315479388" TEXT="neue reine Filter-Funktionen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537230790179" ID="ID_1688121233" MODIFIED="1537308959793" TEXT="wechseln nur den Filter">
 <icon BUILTIN="button_ok"/>

From 121d78e13b536b65960ba2f215b3bd4e4738c085 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 19 Sep 2018 03:27:48 +0200
Subject: [PATCH 098/178] EventLog: now able to write the condition to verify
 doRevealYourself (#1162)

this initially (on 1.9.18) triggered this extended digression;
The initial naive implementation (without backtracking) did not allow
to express such a simple thing like "function XXX" not invoked (again) after "function XXX"
---
 tests/gui/abstract-tangible-test.cpp |  7 ++--
 wiki/thinkPad.ichthyo.mm             | 48 ++++++++++++++++++----------
 2 files changed, 36 insertions(+), 19 deletions(-)

diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 29a42bfe0..2aa65abd2 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -535,9 +535,12 @@ namespace test {
           // Note the fine point: the target element /was/ already expanded
           // and thus there is no second "expanded" event, nor is there a
           // second state mark emitted into the UI-Bus...
-          CHECK (mock.ensureNot("expand")
-//                     .afterCall("revealYourself")
+          CHECK (mock.ensureNot("expanded")
+                     .afterCall("revealYourself")
                      .afterEvent("expanded"));
+          CHECK (nexusLog.ensureNot("note")
+                         .afterCall("mark").arg(targetID, stateMark)
+                         .after("handling state-mark"));
           
           
           
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f63628e37..93511c487 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2035,11 +2035,14 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1535737923428" TEXT="Unit-Test: AbtractTangible_test erweitern">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815055702" ID="ID_493114230" MODIFIED="1535815475299" TEXT="EventLog: Problem mit Backtracking">
-<arrowlink COLOR="#ba8096" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" STARTARROW="None" STARTINCLINATION="838;114;"/>
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1537320236780" TEXT="Unit-Test: AbtractTangible_test erweitern">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1535815055702" ID="ID_493114230" MODIFIED="1537320233912" TEXT="EventLog: Problem mit Backtracking">
+<arrowlink COLOR="#80b3ba" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" STARTARROW="None" STARTINCLINATION="838;114;"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537320168170" ID="ID_1213843922" MODIFIED="1537320180729" TEXT="danach l&#xe4;&#xdf;t sich die gew&#xfc;nschte Log-Bedingung formulieren">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1535756101199" TEXT="konkret was machen, damit man die Funktion sehen kann">
@@ -25089,7 +25092,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815210288" ID="ID_1041148737" MODIFIED="1535815475299" TEXT="Problem: kein wirkliches Backtracking">
-<linktarget COLOR="#ba8096" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" SOURCE="ID_493114230" STARTARROW="None" STARTINCLINATION="838;114;"/>
+<linktarget COLOR="#80b3ba" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" SOURCE="ID_493114230" STARTARROW="None" STARTINCLINATION="838;114;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1535835597691" ID="ID_218241863" MODIFIED="1535835683187" TEXT="wird relevant bei Richtungs-Wechsel">
 <richcontent TYPE="NOTE"><html>
@@ -25129,7 +25132,7 @@
 <arrowlink COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" STARTARROW="None" STARTINCLINATION="1631;0;"/>
 <icon BUILTIN="pencil"/>
 </node>
-<node CREATED="1536441983485" ID="ID_330124350" MODIFIED="1536442038343" TEXT="Warnung: anonymous namespace">
+<node CREATED="1536441983485" ID="ID_330124350" MODIFIED="1537320197047" TEXT="Warnung: anonymous namespace">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -25175,7 +25178,8 @@
       &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;^~~~~~~~~~
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
@@ -31657,12 +31661,13 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535938028929" ID="ID_1910123172" MODIFIED="1535938091638" TEXT="Backtracking Search-Engine einbauen">
+<node COLOR="#338800" CREATED="1535938028929" ID="ID_1910123172" MODIFIED="1537320149375" TEXT="Backtracking Search-Engine einbauen">
 <arrowlink COLOR="#23408f" DESTINATION="ID_1801538785" ENDARROW="Default" ENDINCLINATION="20;-55;" ID="Arrow_ID_1048873840" STARTARROW="None" STARTINCLINATION="-120;0;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
 <node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
-<node CREATED="1537058259201" ID="ID_1249469718" MODIFIED="1537058264460" TEXT="Anpassungen">
+<node COLOR="#338800" CREATED="1537058259201" ID="ID_1249469718" MODIFIED="1537320125432" TEXT="Anpassungen">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537058272183" ID="ID_1629184923" MODIFIED="1537059375100" TEXT="Alles per Filter-Chain machen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1537058280542" ID="ID_1820744744" MODIFIED="1537058284929" TEXT="ist zwar aufwendiger..."/>
@@ -31764,8 +31769,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537059394146" TEXT="Tests scheitern...">
-<icon BUILTIN="flag-pink"/>
+<node COLOR="#338800" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537320123695" TEXT="Tests scheitern...">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537316730803" TEXT="EventLog_test">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -31842,12 +31847,21 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537316714860" ID="ID_84746570" MODIFIED="1537316725828" TEXT="Tests zur Klarstellung erg&#xe4;nzen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537316714860" ID="ID_84746570" MODIFIED="1537320053126" TEXT="Tests zur Klarstellung erg&#xe4;nzen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537059407506" TEXT="BusTerm_test"/>
-<node COLOR="#435e98" CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537315480594" TEXT="Fix">
+<node COLOR="#338800" CREATED="1537059402359" ID="ID_1670401833" MODIFIED="1537320056202" TEXT="BusTerm_test">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537320056985" ID="ID_1069836812" MODIFIED="1537320066440" TEXT="AbstractTangible_test">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537320067432" ID="ID_1996707326" MODIFIED="1537320080797" TEXT="der hat diesen ganzen Umbau ausgel&#xf6;st">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node COLOR="#435e98" CREATED="1537230718644" ID="ID_1760678465" MODIFIED="1537320265399" TEXT="Fix">
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537230726491" ID="ID_1088562812" MODIFIED="1537315479387" TEXT="before / after gehen stets einen Schritt">
 <linktarget COLOR="#73a3ae" DESTINATION="ID_1088562812" ENDARROW="Default" ENDINCLINATION="255;0;" ID="Arrow_ID_1747758330" SOURCE="ID_256131209" STARTARROW="None" STARTINCLINATION="191;47;"/>

From 9e96effcf163944ef3d59f8d03a1632ecd833fe5 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 20 Sep 2018 01:42:31 +0200
Subject: [PATCH 099/178] EventLog: prepare for dedicated translation unit

up to now, EventLog was header only, which seems to cause
a significant bloat in terms of generated code size, especially
in debug builds. One major source for this kind of "template bloat"
is the IterChainSearch, rsp. the filter and transformer iterators.

And since EventLog is not meant for performance critical application code,
but rather serves as helper for writing unit tests, an obvious remedy is
to move that problematic part of the code down into a dedicate translation
unit, instead of using inline functions. To prepare this refactoring,
some var arg (templated) API funcitons need to be segregated.
---
 src/lib/test/event-log.hpp | 31 ++++++++++++++++++++-----------
 wiki/thinkPad.ichthyo.mm   | 19 ++++++++++---------
 2 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 90897c7f0..19bfe0165 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -535,24 +535,35 @@ namespace test{
           return *this;
         }
       
+      void
+      refineSerach_matchArguments (ArgSeq&& argSeq)
+        {
+          string argList(util::join(argSeq));
+          refineSerach (matchArguments(move(argSeq)));
+          evaluateQuery ("match-arguments("+argList+")");
+        }
+      
       /** refine filter to additionally require specific arguments
        * @remarks the refined filter works on each record qualified by the
        *          query expression established thus far; it additionally
        *          looks into the arguments (children list) of the log entry.
-       * @warning match is processed by comparision of string representation.
+       * @warning match is processed by comparison of string representation.
        */
       template<typename...ARGS>
       EventMatch&
       arg (ARGS const& ...args)
         {
-          ArgSeq argSeq(stringify<ArgSeq> (args...));
-          string argList(util::join(argSeq));
-          
-          refineSerach (matchArguments(move(argSeq)));
-          evaluateQuery ("match-arguments("+argList+")");
+          refineSerach_matchArguments (stringify<ArgSeq> (args...));
           return *this;
         }
       
+      void
+      refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
+        {
+          refineSerach (matchArgsRegExp (move (regExpSeq)));
+          evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
+        }
+      
       /** refine filter to additionally cover all arguments
        *  with a series of regular expressions.
        * @note For this match to succeed, any arguments of the log entry
@@ -567,8 +578,8 @@ namespace test{
       EventMatch&
       argMatch (ARGS const& ...regExps)
         {
-          refineSerach (matchArgsRegExp (stringify<RExSeq> (regExps...)));
-          evaluateQuery ("match-args-RegExp("+util::join(stringify<ArgSeq>(regExps...))+")");
+          refineSerach_matchArgsRegExp (stringify<RExSeq> (regExps...),
+                                        util::join(stringify<ArgSeq>(regExps...)));
           return *this;
         }
       
@@ -630,9 +641,7 @@ namespace test{
       on (const X *const targetObj)
         {
           string targetID = idi::instanceTypeID (targetObj);
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+targetID+"\")");
-          return *this;
+          return this->on(targetID);
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 93511c487..ac9bb7bd4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31666,7 +31666,7 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
 <node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
-<node COLOR="#338800" CREATED="1537058259201" ID="ID_1249469718" MODIFIED="1537320125432" TEXT="Anpassungen">
+<node COLOR="#338800" CREATED="1537058259201" FOLDED="true" ID="ID_1249469718" MODIFIED="1537320577437" TEXT="Anpassungen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537058272183" ID="ID_1629184923" MODIFIED="1537059375100" TEXT="Alles per Filter-Chain machen">
 <icon BUILTIN="button_ok"/>
@@ -31769,7 +31769,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537320123695" TEXT="Tests scheitern...">
+<node COLOR="#338800" CREATED="1537059388025" FOLDED="true" ID="ID_1276869558" MODIFIED="1537320566920" TEXT="Tests scheitern...">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537316730803" TEXT="EventLog_test">
 <richcontent TYPE="NOTE"><html>
@@ -31920,8 +31920,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1537400207423" TEXT="in eigene Translation-Unit verschieben">
+<icon BUILTIN="pencil"/>
 <node CREATED="1537059357301" ID="ID_1501687281" MODIFIED="1537059360761" TEXT="Beobachtungen">
 <node CREATED="1536368121224" ID="ID_684768731" MODIFIED="1536368139195">
 <richcontent TYPE="NODE"><html>
@@ -31953,10 +31953,10 @@
 </node>
 <node CREATED="1537059265873" ID="ID_798187553" MODIFIED="1537059347543" TEXT="leider merkt man aber die Umstellung auf IterChainSearch">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1536368144661" ID="ID_1266326166" MODIFIED="1537059319775" TEXT="BusTerm_test = 14.3 MB">
+<node CREATED="1536368144661" ID="ID_1266326166" MODIFIED="1537320654812" TEXT="BusTerm_test = 14.6 MB">
 <icon BUILTIN="smiley-oh"/>
 </node>
-<node CREATED="1536368166242" ID="ID_1222359374" MODIFIED="1537059337516" TEXT="EventLog_test = 7.4 MB">
+<node CREATED="1536368166242" ID="ID_1222359374" MODIFIED="1537320670162" TEXT="EventLog_test = 7.8 MB">
 <icon BUILTIN="smiley-angry"/>
 </node>
 </node>
@@ -31966,7 +31966,8 @@
 <node CREATED="1537059868337" ID="ID_138143272" MODIFIED="1537059878979" TEXT="es kann daher ein direktes Objektfeld bleiben"/>
 <node CREATED="1537059879759" ID="ID_893108945" MODIFIED="1537059904472" TEXT="alle Suchpr&#xe4;dikate sind Lambdas -&gt; Template Argumente"/>
 <node CREATED="1537059905107" ID="ID_133126017" MODIFIED="1537059924085" TEXT="d.h. auch die Such-Funktionen m&#xfc;ssen nach hinten in das CPP gedr&#xfc;ckt werden"/>
-<node CREATED="1537059925313" ID="ID_1283278546" MODIFIED="1537059940483" TEXT="Problem Var-Arg">
+<node COLOR="#338800" CREATED="1537059925313" ID="ID_1283278546" MODIFIED="1537400192425" TEXT="Problem Var-Arg">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537059941287" ID="ID_1072965326" MODIFIED="1537059944938" TEXT="Argument-Match"/>
 <node CREATED="1537059945310" ID="ID_1104771437" MODIFIED="1537059950057" TEXT="RegExp-Sequenz"/>
 <node CREATED="1537059950597" ID="ID_1688685593" MODIFIED="1537059976646" TEXT="beide erzeugen aber einen STL-container als Intermediary">
@@ -31975,8 +31976,8 @@
 <node CREATED="1537059978146" ID="ID_1403964414" MODIFIED="1537059984405" TEXT="d.h. man kann dazwischen schneiden"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537059997529" TEXT="Umbau">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537400219755" TEXT="Umbau">
+<icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537060024165" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
 <icon BUILTIN="flag-yellow"/>
 </node>

From 1df5bf5c5ecc728679cb37c807d0dc6c1937457c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 20 Sep 2018 02:19:10 +0200
Subject: [PATCH 100/178] EventLog: split into header and dedicated translation
 unit (WIP)

---
 src/lib/test/event-log.cpp | 1038 ++++++++++++++++++++++++++++++++++++
 src/lib/test/event-log.hpp |   32 +-
 wiki/thinkPad.ichthyo.mm   |    4 +-
 3 files changed, 1071 insertions(+), 3 deletions(-)
 create mode 100644 src/lib/test/event-log.cpp

diff --git a/src/lib/test/event-log.cpp b/src/lib/test/event-log.cpp
new file mode 100644
index 000000000..1cac0408e
--- /dev/null
+++ b/src/lib/test/event-log.cpp
@@ -0,0 +1,1038 @@
+/*
+  EventLog  -  test facility to verify the occurrence of expected events
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file event-log.cpp
+ ** Implementation details of event logging and verification for unit tests.
+ ** The EventLog is a helper for writing tests or for special rigging within
+ ** the test or debugging or mock variant of some common services. It allows
+ ** to log some events to memory and then to build match expressions to verify
+ ** those captured information.
+ ** 
+ ** The machinery for matching on the occurrence of some events can be quite
+ ** intricate at implementation level; we use an implementation based on a
+ ** filtering iterator pipeline. This kind of code is template heavy and
+ ** can cause a significant increase of generated code size -- especially
+ ** on debug builds. For that reason, we prefer to call through regular
+ ** (non-inline) functions and package all the actual implementation
+ ** code into a dedicated translation unit.
+ ** 
+ ** @see TestEventLog_test
+ ** @see IterChainSearch_test
+ ** @see iter-tree-explorer.hpp
+ ** 
+ */
+
+
+
+#include "lib/error.hpp"
+#include "lib/test/event-log.hpp"
+#include "lib/idi/entry-id.hpp"
+#include "lib/iter-chain-search.hpp"
+#include "lib/iter-cursor.hpp"
+#include "lib/format-util.hpp"
+#include "lib/format-cout.hpp"
+#include "lib/diff/record.hpp"
+#include "lib/symbol.hpp"
+#include "lib/util.hpp"
+
+#include <memory>
+#include <vector>
+#include <string>
+#include <regex>
+
+
+
+namespace lib {
+namespace test{
+  namespace error = lumiera::error;
+  
+  using util::stringify;
+  using util::contains;
+  using util::isnil;
+  using lib::Symbol;
+  using std::string;
+  
+  namespace {
+    using Entry = lib::diff::Record<string>;
+    using Log   = std::vector<Entry>;
+    
+    auto
+    buildSearchFilter(Log const& srcSeq)
+    {
+      using Cursor  = lib::iter::CursorGear<Log::const_iterator>;
+      return iter::chainSearch (Cursor{srcSeq.begin(), srcSeq.end()});
+    }
+  }
+  
+  
+  /**
+   * @internal ongoing evaluation and match within an [EventLog].
+   * @remarks an EventMatch object is returned when building query expression
+   *          to verify the occurrence of some events within the EventLog.
+   *          This "matcher" object implements the query logic with backtracking.
+   *          The query expressions are added as filter functors to a filtering
+   *          iterator; when all of the log's contents are filtered away,
+   *          the evaluation counts as failed.
+   */
+  class EventMatch
+    {
+      using Filter = decltype( buildSearchFilter (std::declval<Log const&>()) );
+      
+      using ArgSeq = lib::diff::RecordSetup<string>::Storage;
+      using RExSeq = std::vector<std::regex>;
+      
+      
+      /** match predicate evaluator */
+      Filter solution_;
+      
+      /** record last match for diagnostics */
+      string lastMatch_;
+      
+      /** support for positive and negative queries. */
+      bool look_for_match_;
+      
+      /** record when the underlying query has failed */
+      string violation_;
+      
+      /** core of the evaluation machinery:
+       * apply a filter predicate and then pull
+       * through the log to find a acceptable entry
+       */
+      bool
+      foundSolution()
+        {
+          return not isnil (solution_);
+        }
+      
+      /** this is actually called after each refinement of
+       * the filter and matching conditions. The effect is to search
+       * for an (intermediary) solution right away and to mark failure
+       * as soon as some condition can not be satisfied. Rationale is to
+       * indicate the point where a chained match fails
+       * @see ::operator bool() for extracting the result
+       * @param matchSpec diagnostics description of the predicate just being added
+       * @param rel indication of the searching relation / direction
+       */
+      void
+      evaluateQuery (string matchSpec, Literal rel = "after")
+        {
+          if (look_for_match_ and not isnil (violation_)) return;
+             // already failed, no further check necessary
+          
+          if (foundSolution()) // NOTE this pulls the filter
+            {
+              lastMatch_ = matchSpec+" @ "+string(*solution_)
+                         + (isnil(lastMatch_)? ""
+                                             : "\n.."+rel+" "+lastMatch_);
+              if (not look_for_match_)
+                violation_ = "FOUND at least "+lastMatch_;
+            }
+          else
+            {
+              if (look_for_match_)
+                violation_ = "FAILED to "+matchSpec
+                           + "\n.."+rel
+                           + " "+lastMatch_;
+              else
+                violation_ = "";
+            }
+        }
+      
+      
+      /** @internal for creating EventLog matchers */
+      EventMatch(Log const& srcSeq)
+        : solution_{buildSearchFilter (srcSeq)}
+        , lastMatch_{"HEAD "+ solution_->get("this")}
+        , look_for_match_{true}
+        , violation_{}
+        { }
+      
+      friend class EventLog;
+      
+      
+      
+      /* == elementary matchers == */
+      
+      auto
+      find (string match)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return contains (string(entry), match);
+                    };
+        }
+      
+      auto
+      findRegExp (string regExpDef)
+        {
+          std::regex regExp(regExpDef);
+          return [=](Entry const& entry)
+                    {
+                      return std::regex_search(string(entry), regExp);
+                    };
+        }
+      
+      auto
+      findEvent (string match)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return (  entry.getType() == "event"
+                             or entry.getType() == "error"
+                             or entry.getType() == "create"
+                             or entry.getType() == "destroy"
+                             or entry.getType() == "logJoin"
+                             )
+                         and !isnil(entry.scope())
+                         and contains (*entry.scope(), match);
+                    };
+        }
+      
+      auto
+      findEvent (string classifier, string match)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return (  entry.getType() == classifier
+                             or (entry.hasAttribute("ID") and contains (entry.get("ID"), classifier))
+                             )
+                         and !isnil(entry.scope())
+                         and contains (*entry.scope(), match);
+                    };
+        }
+      
+      auto
+      findCall (string match)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return entry.getType() == "call"
+                         and contains (entry.get("fun"), match);
+                    };
+        }
+      
+      
+      /** this filter functor is for refinement of an existing filter
+       * @param argSeq perform a substring match consecutively
+       *        for each of the log entry's arguments
+       * @note the match also fails, when the given log entry
+       *       has more or less arguments, than the number of
+       *       given match expressions in `argSeq`
+       * @see ExtensibleFilterIter::andFilter()
+       */
+      auto
+      matchArguments (ArgSeq&& argSeq)
+        {
+          return [=](Entry const& entry)
+                    {
+                      auto scope = entry.scope();
+                      for (auto const& match : argSeq)
+                        if (isnil (scope) or not contains(*scope, match))
+                          return false;
+                        else
+                          ++scope;
+                      
+                      return isnil(scope);  // must be exhausted by now
+                    };                     //  otherwise the sizes do not match...
+        }
+      
+      
+      /** refinement filter, to cover all arguments by regular expression(s)
+       * @param regExpSeq several regular expressions, which, when applied
+       *        consecutively until exhaustion, must cover and verify _all_
+       *        arguments of the log entry.
+       * @remarks to explain, we "consume" arguments with a regExp from the list,
+       *        and when this one doesn't match anymore, we try the next one.
+       *        When we'ver tried all regular expressions, we must have also
+       *        consumed all arguments, otherwise we fail.
+       */
+      auto
+      matchArgsRegExp (RExSeq&& regExpSeq)
+        {
+          return [=](Entry const& entry)
+                    {
+                      auto scope = entry.scope();
+                      for (auto const& rex : regExpSeq)
+                        {
+                          if (isnil (scope)) return false;
+                          while (scope and std::regex_search(*scope, rex))
+                            ++scope;
+                        }
+                      
+                      return isnil(scope);  // must be exhausted by now
+                    };                     //  otherwise we didn't get full coverage...
+        }
+      
+      
+      /** refinement filter to match on the given typeID */
+      auto
+      matchType (string typeID)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return contains (entry.getType(), typeID);
+                    };
+        }
+      
+      
+      /** refinement filter to ensure a specific attribute is present on the log entry */
+      auto
+      ensureAttribute (string key)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return entry.hasAttribute(key);
+                    };
+        }
+      
+      
+      /** refinement filter to ensure a specific attribute is present on the log entry */
+      auto
+      matchAttribute (string key, string valueMatch)
+        {
+          return [=](Entry const& entry)
+                    {
+                      return entry.hasAttribute(key)
+                         and contains (entry.get(key), valueMatch);
+                    };
+        }
+      
+      
+      /* === configure the underlying search engine === */
+      
+      enum Direction {
+        FORWARD, BACKWARD, CURRENT
+      };
+      
+      template<typename COND>
+      void
+      attachNextSerchStep (COND&& filter, Direction direction)
+        {
+          if (CURRENT == direction)
+            solution_.search (forward<COND> (filter));
+          else
+            solution_.addStep ([predicate{forward<COND> (filter)}, direction]
+                               (auto& filter)
+                                 {
+                                   filter.reverse (BACKWARD == direction);
+                                   filter.disableFilter();  // deactivate any filtering temporarily 
+                                   ++filter;               //  move one step in the required direction
+                                   filter.setNewFilter (predicate);
+                                 });
+        }
+      
+      template<typename COND>
+      void
+      refineSerach (COND&& additionalFilter)
+        {
+          solution_.addStep ([predicate{forward<COND> (additionalFilter)}]
+                             (auto& filter)
+                               {
+                                 filter.andFilter (predicate);
+                               });
+        }
+      
+      
+      
+    public:
+      /** final evaluation of the match query,
+       *  usually triggered from the unit test `CHECK()`.
+       * @note failure cause is printed to STDERR.
+       */
+      operator bool()  const
+        {
+          if (!isnil (violation_))
+            {
+              cerr << "__Log_condition_violated__\n"+violation_ <<"\n";
+              return false;
+            }
+          return true;
+        }
+      
+      
+      /**
+       * basic search function: continue linear lookup over the elements of the
+       * EventLog to find a match (substring match) of the given text. The search begins
+       * at the current position and proceeds in the currently configured direction.
+       * Initially the search starts at the first record and proceeds forward. 
+       */
+      EventMatch&
+      locate (string match)
+        {
+          attachNextSerchStep (find(match), CURRENT);
+          evaluateQuery ("match(\""+match+"\")");
+          return *this;
+        }
+      
+      /** basic search like locate() but with the given regular expression */
+      EventMatch&
+      locateMatch (string regExp)
+        {
+          attachNextSerchStep (findRegExp(regExp), CURRENT);
+          evaluateQuery ("find-RegExp(\""+regExp+"\")");
+          return *this;
+        }
+      
+      /** basic search for a matching  "event"
+       * @param match perform a substring match against the arguments of the event
+       * @see beforeEvent() for a description of possible "events"
+       */
+      EventMatch&
+      locateEvent (string match)
+        {
+          attachNextSerchStep (findEvent(match), CURRENT);
+          evaluateQuery ("match-event(\""+match+"\")");
+          return *this;
+        }
+      
+      EventMatch&
+      locateEvent (string classifier, string match)
+        {
+          attachNextSerchStep (findEvent(classifier,match), CURRENT);
+          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
+          return *this;
+        }
+      
+      /** basic search for some specific function invocation
+       * @param match perform a substring match against the name of the function invoked
+       */
+      EventMatch&
+      locateCall (string match)
+        {
+          attachNextSerchStep (findCall(match), CURRENT);
+          evaluateQuery ("match-call(\""+match+"\")");
+          return *this;
+        }
+      
+      /**
+       * find a match (substring match) of the given text
+       * in an EventLog entry after the current position
+       * @remarks the name of this junctor might seem counter intuitive;
+       *          it was chosen due to expected DSL usage: `log.verify("α").before("β")`.
+       *          Operationally this means first to find a Record matching the substring "α"
+       *          and then to forward from this point until hitting a record to match "β". 
+       */
+      EventMatch&
+      before (string match)
+        {
+          attachNextSerchStep (find(match), FORWARD);
+          evaluateQuery ("match(\""+match+"\")");
+          return *this;
+        }
+      
+      /** find a match with the given regular expression */
+      EventMatch&
+      beforeMatch (string regExp)
+        {
+          attachNextSerchStep (findRegExp(regExp), FORWARD);
+          evaluateQuery ("find-RegExp(\""+regExp+"\")");
+          return *this;
+        }
+      
+      /** find a match for an "event" _after_ the current point of reference
+       * @remarks the term "event" designates several types of entries, which
+       *          typically capture something happening within the observed entity.
+       *          Especially, the following [record types](\ref lib::Record::getType())
+       *          qualify as event:
+       *          - `event`
+       *          - `error`
+       *          - `create`
+       *          - `destroy`
+       *          - `logJoin`
+       * @param match perform a substring match against the arguments of the event
+       * @see ::findEvent
+       */
+      EventMatch&
+      beforeEvent (string match)
+        {
+          attachNextSerchStep (findEvent(match), FORWARD);
+          evaluateQuery ("match-event(\""+match+"\")");
+          return *this;
+        }
+      
+      EventMatch&
+      beforeEvent (string classifier, string match)
+        {
+          attachNextSerchStep (findEvent(classifier,match), FORWARD);
+          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
+          return *this;
+        }
+      
+      /** find a match for some function invocation _after_ the current point of reference
+       * @param match perform a substring match against the name of the function invoked
+       * @see ::findCall
+       */
+      EventMatch&
+      beforeCall (string match)
+        {
+          attachNextSerchStep (findCall(match), FORWARD);
+          evaluateQuery ("match-call(\""+match+"\")");
+          return *this;
+        }
+      
+      EventMatch&
+      after (string match)
+        {
+          attachNextSerchStep (find(match), BACKWARD);
+          evaluateQuery ("match(\""+match+"\")", "before");
+          return *this;
+        }
+      
+      EventMatch&
+      afterMatch (string regExp)
+        {
+          attachNextSerchStep (findRegExp(regExp), BACKWARD);
+          evaluateQuery ("find-RegExp(\""+regExp+"\")", "before");
+          return *this;
+        }
+      
+      EventMatch&
+      afterEvent (string match)
+        {
+          attachNextSerchStep (findEvent(match), BACKWARD);
+          evaluateQuery ("match-event(\""+match+"\")", "before");
+          return *this;
+        }
+      
+      EventMatch&
+      afterEvent (string classifier, string match)
+        {
+          attachNextSerchStep (findEvent(classifier,match), BACKWARD);
+          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")", "before");
+          return *this;
+        }
+      
+      /** find a function invocation backwards, before the current point of reference */
+      EventMatch&
+      afterCall (string match)
+        {
+          attachNextSerchStep (findCall(match), BACKWARD);
+          evaluateQuery ("match-call(\""+match+"\")", "before");
+          return *this;
+        }
+      
+      void
+      refineSerach_matchArguments (ArgSeq&& argSeq)
+        {
+          string argList(util::join(argSeq));
+          refineSerach (matchArguments(move(argSeq)));
+          evaluateQuery ("match-arguments("+argList+")");
+        }
+      
+      /** refine filter to additionally require specific arguments
+       * @remarks the refined filter works on each record qualified by the
+       *          query expression established thus far; it additionally
+       *          looks into the arguments (children list) of the log entry.
+       * @warning match is processed by comparison of string representation.
+       */
+      template<typename...ARGS>
+      EventMatch&
+      arg (ARGS const& ...args)
+        {
+          refineSerach_matchArguments (stringify<ArgSeq> (args...));
+          return *this;
+        }
+      
+      void
+      refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
+        {
+          refineSerach (matchArgsRegExp (move (regExpSeq)));
+          evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
+        }
+      
+      /** refine filter to additionally cover all arguments
+       *  with a series of regular expressions.
+       * @note For this match to succeed, any arguments of the log entry
+       *       must be covered by applying the given regular expressions
+       *       consecutively. Each regular expression is applied to further
+       *       arguments, as long as it matches. It is possible to have
+       *       just one RegExp to "rule them all", but as soon as there
+       *       is one argument, that can not be covered by the next
+       *       RegExp, the whole match counts as failed.
+       */
+      template<typename...ARGS>
+      EventMatch&
+      argMatch (ARGS const& ...regExps)
+        {
+          refineSerach_matchArgsRegExp (stringify<RExSeq> (regExps...),
+                                        util::join(stringify<ArgSeq>(regExps...)));
+          return *this;
+        }
+      
+      /** refine filter to additionally require a matching log entry type */
+      EventMatch&
+      type (string typeID)
+        {
+          refineSerach (matchType(typeID));
+          evaluateQuery ("match-type("+typeID+")");
+          return *this;
+        }
+      
+      /** refine filter to additionally require the presence an attribute */
+      EventMatch&
+      key (string key)
+        {
+          refineSerach (ensureAttribute(key));
+          evaluateQuery ("ensure-attribute("+key+")");
+          return *this;
+        }
+      
+      /** refine filter to additionally match on a specific attribute */
+      EventMatch&
+      attrib (string key, string valueMatch)
+        {
+          refineSerach (matchAttribute(key,valueMatch));
+          evaluateQuery ("match-attribute("+key+"=\""+valueMatch+"\")");
+          return *this;
+        }
+      
+      /** refine filter to additionally match on the ID attribute */
+      EventMatch&
+      id (string classifier)
+        {
+          refineSerach (matchAttribute("ID",classifier));
+          evaluateQuery ("match-ID(\""+classifier+"\")");
+          return *this;
+        }
+      
+      /** refine filter to additionally match the `'this'` attribute */
+      EventMatch&
+      on (string targetID)
+        {
+          refineSerach (matchAttribute("this",targetID));
+          evaluateQuery ("match-this(\""+targetID+"\")");
+          return *this;
+        }
+      
+      EventMatch&
+      on (const char* targetID)
+        {
+          refineSerach (matchAttribute("this",targetID));
+          evaluateQuery ("match-this(\""+string(targetID)+"\")");
+          return *this;
+        }
+      
+      template<typename X>
+      EventMatch&
+      on (const X *const targetObj)
+        {
+          string targetID = idi::instanceTypeID (targetObj);
+          return this->on(targetID);
+        }
+    };
+  
+  
+  
+  
+  
+  /****************************************************************//**
+   * Helper to log and verify the occurrence of events.
+   * The EventLog object is a front-end handle, logging flexible
+   * [information records](\ref lib::Record) into a possibly shared (vector)
+   * buffer in heap storage. An extended query DSL allows to write
+   * assertions to cover the occurrence of events in unit tests.
+   * @see TestEventLog_test
+   */
+  class EventLog
+    {
+      
+      std::shared_ptr<Log> log_;
+      
+      
+      void
+      log (std::initializer_list<string> const& ili)
+        {
+          log_->emplace_back(ili);
+        }
+      
+      template<typename ATTR, typename ARGS>
+      void
+      log (Symbol typeID, ATTR&& attribs, ARGS&& args)
+        {
+          log_->emplace_back(typeID, std::forward<ATTR>(attribs)
+                                   , std::forward<ARGS>(args));
+        }
+      
+      string
+      getID()  const
+        {
+          return log_->front().get("this");
+        }
+      
+      
+    public:
+      explicit
+      EventLog (string logID)
+        : log_(new Log)
+        {
+          log({"type=EventLogHeader", "this="+logID});
+        }
+      
+      explicit
+      EventLog (const char* logID)
+        : EventLog(string(logID))
+        { }
+      
+      template<class X>
+      explicit
+      EventLog (const X *const obj)
+        : EventLog(idi::instanceTypeID (obj))
+        { }
+      
+      
+      // standard copy operations acceptable
+      
+      
+      /** Merge this log into another log, forming a combined log
+       * @param otherLog target to integrate this log's contents into.
+       * @return reference to the merged new log instance
+       * @remarks EventLog uses a heap based, sharable log storage,
+       *          where the EventLog object is just a front-end (shared ptr).
+       *          The `joinInto` operation both integrates this logs contents
+       *          into the other log, and then disconnects from the old storage
+       *          and connects to the storage of the combined log.
+       * @warning beware of clone copies. Since copying EventLog is always a
+       *          shallow copy, all copied handles actually refer to the same
+       *          log storage. If you invoke `joinInto` in such a situation,
+       *          only the current EventLog front-end handle will be rewritten
+       *          to point to the combined log, while any other clone will
+       *          continue to point to the original log storage.
+       * @see TestEventLog_test::verify_logJoining()
+       */
+      EventLog&
+      joinInto (EventLog& otherLog)
+        {
+          Log& target = *otherLog.log_;
+          target.reserve (target.size() + log_->size() + 1);
+          target.emplace_back (log_->front());
+          auto p = log_->begin();
+          while (++p != log_->end()) // move our log's content into the other log
+            target.emplace_back(std::move(*p));
+          this->log_->resize(1);
+          this->log({"type=joined", otherLog.getID()});   // leave a tag to indicate
+          otherLog.log({"type=logJoin", this->getID()}); //  where the `joinInto` took place,
+          this->log_ = otherLog.log_;                   //   connect this to the other storage
+          return *this;
+        }
+      
+      
+      /** purge log contents while retaining just the original Header-ID */
+      EventLog&
+      clear()
+        {
+          string originalLogID = this->getID();
+          return this->clear (originalLogID);
+        }
+      
+      /** purge log contents and also reset Header-ID
+       * @note actually we're starting a new log
+       *       and let the previous one go away.
+       * @warning while this also unties any joined logs,
+       *       other log front-ends might still hold onto
+       *       the existing, combined log. Just we are
+       *       detached and writing to a pristine log.
+       */
+      EventLog&
+      clear (string alteredLogID)
+        {
+          log_.reset (new Log);
+          log({"type=EventLogHeader", "this="+alteredLogID});
+          return *this;
+        }
+      
+      EventLog&
+      clear (const char* alteredLogID)
+        {
+          return clear (string{alteredLogID});
+        }
+      
+      template<class X>
+      EventLog&
+      clear (const X *const obj)
+        {
+          return clear (idi::instanceTypeID (obj));
+        }
+      
+      
+      
+      /* ==== Logging API ==== */
+      
+      using ArgSeq = lib::diff::RecordSetup<string>::Storage;
+      
+      EventLog&
+      event (string text)
+        {
+          log ("event", ArgSeq{}, ArgSeq{text});  // we use this ctor variant to ensure
+          return *this;                          //  that text is not misinterpreted as attribute,
+        }                                       //   which might happen when text contains a '='
+      
+      /** log some event, with additional ID or classifier
+       * @param classifier info to be saved into the `ID` attribute
+       * @param text actual payload info, to be logged as argument
+       */
+      EventLog&
+      event (string classifier, string text)
+        {
+          log ("event", ArgSeq{"ID="+classifier}, ArgSeq{text});
+          return *this;
+        }
+      
+      /** Log occurrence of a function call with no arguments.
+       * @param target the object or scope on which the function is invoked
+       * @param function name of the function being invoked
+       */
+      EventLog&
+      call (string target, string function)
+        {
+          return call(target, function, ArgSeq());
+        }
+      
+      /** Log a function call with a sequence of stringified arguments */
+      EventLog&
+      call (string target, string function, ArgSeq&& args)
+        {
+          log ("call", ArgSeq{"fun="+function, "this="+target}, std::forward<ArgSeq>(args));
+          return *this;
+        }
+      
+      EventLog&
+      call (const char* target, const char* function, ArgSeq&& args)
+        {
+          return call (string(target), string(function), std::forward<ArgSeq>(args));
+        }
+      
+      /** Log a function call with arbitrary arguments */
+      template<typename...ARGS>
+      EventLog&
+      call (string target, string function, ARGS const& ...args)
+        {
+          return call (target, function, stringify<ArgSeq>(args...));
+        }
+      
+      /** Log a function call on given object ("`this`")... */
+      template<class X, typename...ARGS>
+      EventLog&
+      call (const X *const targetObj, string function, ARGS const& ...args)
+        {
+          return call (idi::instanceTypeID (targetObj), function, args...);
+        }
+      
+      template<typename...ARGS>
+      EventLog&
+      call (const char* target, string function, ARGS const& ...args)
+        {
+          return call (string(target), function, args...);
+        }
+      
+      template<typename...ELMS>
+      EventLog&
+      note (ELMS const& ...initialiser)
+        {
+          log_->emplace_back(stringify<ArgSeq> (initialiser...));
+          return *this;
+        }
+
+      
+      /** Log a warning entry */
+      EventLog&
+      warn (string text)
+        {
+          log({"type=warn", text});
+          return *this;
+        }
+
+      
+      /** Log an error note */
+      EventLog&
+      error (string text)
+        {
+          log({"type=error", text});
+          return *this;
+        }
+
+      
+      /** Log a fatal failure */
+      EventLog&
+      fatal (string text)
+        {
+          log({"type=fatal", text});
+          return *this;
+        }
+
+      
+      /** Log the creation of an object.
+       *  Such an entry can be [matched as event](\ref ::verifyEvent) */
+      EventLog&
+      create (string text)
+        {
+          log({"type=create", text});
+          return *this;
+        }
+
+      
+      /** Log the destruction of an object.
+       *  Can be matched as event. */
+      EventLog&
+      destroy (string text)
+        {
+          log({"type=destroy", text});
+          return *this;
+        }
+      
+      
+      
+      /* ==== Iteration ==== */
+      
+      bool
+      empty()  const
+        {
+          return 1 >= log_->size();  // do not count the log header
+        }
+      
+      
+      using Iter  = lib::RangeIter<Log::const_iterator>;
+      
+      typedef Iter const_iterator;
+      typedef const Entry value_type;
+      
+      const_iterator begin() const { return Iter(log_->begin(), log_->end()); }
+      const_iterator end()   const { return Iter(); }
+      
+      friend const_iterator begin (EventLog const& log) { return log.begin(); }
+      friend const_iterator end   (EventLog const& log) { return log.end(); }
+      
+      
+      
+      
+      /* ==== Query/Verification API ==== */
+      
+      /** start a query to match for some substring.
+       *  The resulting matcher object will qualify on any log entry
+       *  containing the given string. By adding subsequent further
+       *  query expressions on the returned [matcher object](\ref EventMatch),
+       *  the query can be refined. Moreover it is possible to chain up further
+       *  search queries, which will be executing starting from the position of the
+       *  previous match. The final result can be retrieved by `bool` conversion
+       */
+      EventMatch
+      verify (string match)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.locate (match);   // new matcher starts linear search from first log element
+          return matcher;
+        }
+      
+      /** start a query to match with a regular expression
+       * @param regExp definition
+       * @remarks the expression will work against the full
+       *          `string` representation of the log entries.
+       *          Meaning, it can also match type and attributes
+       */
+      EventMatch
+      verifyMatch (string regExp)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.locateMatch (regExp);
+          return matcher;
+        }
+      
+      /** start a query to match for some event.
+       * @remarks only a subset of all log entries is treated as "event",
+       *          any other log entry will not be considered for this query.
+       *          Besides the regular [events](\ref ::event()), also errors,
+       *          creation and destruction of objects count as "event".
+       * @param match text to (substring)match against the argument logged as event
+       */
+      EventMatch
+      verifyEvent (string match)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.locateEvent (match);
+          return matcher;
+        }
+      
+      /** start a query to match for an specific kind of element
+       * @param classifier select kind of event by match on type or ID
+       */
+      EventMatch
+      verifyEvent (string classifier, string match)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.locateEvent (classifier, match);
+          return matcher;
+        }
+      
+      template<typename X>
+      EventMatch
+      verifyEvent (string classifier, X const& something)  const
+        {
+          return verifyEvent (classifier, util::toString (something));
+        }
+      
+      /** start a query to match especially a function call
+       * @param match text to match against the function name
+       */
+      EventMatch
+      verifyCall (string match)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.locateCall (match);
+          return matcher;
+        }
+      
+      /** start a query to ensure the given expression does _not_ match.
+       * @remarks the query expression is built similar to the other queries,
+       *          but the logic of evaluation is flipped: whenever we find any match
+       *          the overall result (when evaluating to `bool`) will be `false`.
+       * @warning this is not an proper exhaustive negation, since the implementation
+       *          does not proper backtracking with a stack of choices. This becomes
+       *          evident, when you combine `ensureNot()` with a switch in search
+       *          direction, like e.g. using `afterXXX` at some point in the chain.
+       */
+      EventMatch
+      ensureNot (string match)  const
+        {
+          EventMatch matcher(*log_);
+          matcher.look_for_match_ = false; // flip logic; fail if match succeeds
+          matcher.locate (match);
+          return matcher;
+        }
+      
+      
+      /** equality comparison is based on the actual log contents */
+      friend bool
+      operator== (EventLog const& l1, EventLog const& l2)
+      {
+        return l1.log_ == l2.log_
+            or (l1.log_ and l2.log_
+                and *l1.log_ == *l2.log_);
+      }
+      friend bool
+      operator!= (EventLog const& l1, EventLog const& l2)
+      {
+        return not (l1 == l2);
+      }
+    };
+  
+  
+  
+}} // namespace lib::test
diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 19bfe0165..d00e46c65 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -27,9 +27,39 @@
  ** the [EventLog] allows to record invocations and similar events. It is
  ** implemented as a "PImpl" to allow sharing of logs, which helps to trace
  ** events from transient UI elements and from destructor code. The front-end
- ** used for access offers a query facility, so the test code may express some
+ ** used for access offers a query DSL, so the test code may express some
  ** expected patterns of incidence and verify match or non-match.
  ** 
+ ** # Usage
+ ** 
+ ** The EventLog just captures invocations in memory, as sequence of
+ ** [string records](\ref lib::diff::Record). The _logging API_ offers some
+ ** dedicated functions to record invocations, events, the creation and destruction
+ ** of objects, warnings and error messages. Data passed to those logging functions
+ ** is rendered into string, using Lumiera's generic string conversion helpers.
+ ** 
+ ** To _verify and match_ on log contents, start an evaluation as a builder (DSL)
+ ** expression, starting from one of the #verify functions, or starting with #ensureNot,
+ ** to probe that a given set of matches does not occur in the log. These entrance
+ ** functions set up the initial search condition, and further search conditions
+ ** can be chained up by invoking suitable matching functions on the generated
+ ** EventMatch builder. Most notably, it is possible to search for some further
+ ** match condition _before_ or _after_ the position where the preceding condition
+ ** produced a match -- allowing to specify sequences and patterns of events to
+ ** expect in the log
+ ** \code{.cpp}
+ **   EventLog log("baked beans");
+ **   log.event("spam");
+ **   log.event("ham");
+ **   
+ **   CHECK (log.verify("ham")
+ **             .after("beans")
+ **             .before("spam")
+ **             .before("ham"));
+ ** \endcode
+ ** In general, this kind of search with a switch of the search direction in the middle
+ ** of a match requires some backtracking to try possible matches until exhaustion.
+ ** 
  ** Failure of match prints a detailed trace message to `STDERR`, in order
  ** to deliver a precise indication what part of the condition failed.
  ** @note this sequence prints the matches succeeding _at the point_ where each
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index ac9bb7bd4..8bd0f1099 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31978,8 +31978,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537400219755" TEXT="Umbau">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537060024165" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537402606149" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060024891" ID="ID_416527676" MODIFIED="1537060038043" TEXT="Ctor nach hinten schieben">
 <icon BUILTIN="flag-yellow"/>

From 258a807e974a0b55c12a4605733fbf4a95f8d508 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 20 Sep 2018 04:11:00 +0200
Subject: [PATCH 101/178] EventLog: reorder code to accommodate the split

well... reduction in size of the debug build objects
turns out not to be so large as I hoped. But it is significant anyway,
about 3-4MB on the most affected test classes. Plus from now on we
do not repeat that code on other tests using the same features.
---
 src/lib/test/event-log.cpp | 1700 ++++++++++++++++--------------------
 src/lib/test/event-log.hpp |  698 ++-------------
 wiki/thinkPad.ichthyo.mm   |   76 +-
 3 files changed, 852 insertions(+), 1622 deletions(-)

diff --git a/src/lib/test/event-log.cpp b/src/lib/test/event-log.cpp
index 1cac0408e..d359f34fb 100644
--- a/src/lib/test/event-log.cpp
+++ b/src/lib/test/event-log.cpp
@@ -33,7 +33,7 @@
  ** can cause a significant increase of generated code size -- especially
  ** on debug builds. For that reason, we prefer to call through regular
  ** (non-inline) functions and package all the actual implementation
- ** code into a dedicated translation unit.
+ ** code into this dedicated translation unit.
  ** 
  ** @see TestEventLog_test
  ** @see IterChainSearch_test
@@ -45,19 +45,6 @@
 
 #include "lib/error.hpp"
 #include "lib/test/event-log.hpp"
-#include "lib/idi/entry-id.hpp"
-#include "lib/iter-chain-search.hpp"
-#include "lib/iter-cursor.hpp"
-#include "lib/format-util.hpp"
-#include "lib/format-cout.hpp"
-#include "lib/diff/record.hpp"
-#include "lib/symbol.hpp"
-#include "lib/util.hpp"
-
-#include <memory>
-#include <vector>
-#include <string>
-#include <regex>
 
 
 
@@ -71,967 +58,746 @@ namespace test{
   using lib::Symbol;
   using std::string;
   
-  namespace {
-    using Entry = lib::diff::Record<string>;
-    using Log   = std::vector<Entry>;
+  
+  namespace { /* == elementary matchers == */
     
-    auto
-    buildSearchFilter(Log const& srcSeq)
+    using Filter = decltype( buildSearchFilter (std::declval<Log const&>()) );
+    
+    using ArgSeq = lib::diff::RecordSetup<string>::Storage;
+    using RExSeq = std::vector<std::regex>;
+    
+    
+    inline auto
+    find (string match)
     {
-      using Cursor  = lib::iter::CursorGear<Log::const_iterator>;
-      return iter::chainSearch (Cursor{srcSeq.begin(), srcSeq.end()});
+      return [=](Entry const& entry)
+                {
+                  return contains (string(entry), match);
+                };
     }
+    
+    inline auto
+    findRegExp (string regExpDef)
+    {
+      std::regex regExp(regExpDef);
+      return [=](Entry const& entry)
+                {
+                  return std::regex_search(string(entry), regExp);
+                };
+    }
+    
+    inline auto
+    findEvent (string match)
+    {
+      return [=](Entry const& entry)
+                {
+                  return (  entry.getType() == "event"
+                         or entry.getType() == "error"
+                         or entry.getType() == "create"
+                         or entry.getType() == "destroy"
+                         or entry.getType() == "logJoin"
+                         )
+                     and !isnil(entry.scope())
+                     and contains (*entry.scope(), match);
+                };
+    }
+    
+    inline auto
+    findEvent (string classifier, string match)
+    {
+      return [=](Entry const& entry)
+                {
+                  return (  entry.getType() == classifier
+                         or (entry.hasAttribute("ID") and contains (entry.get("ID"), classifier))
+                         )
+                     and !isnil(entry.scope())
+                     and contains (*entry.scope(), match);
+                };
+    }
+    
+    inline auto
+    findCall (string match)
+    {
+      return [=](Entry const& entry)
+                {
+                  return entry.getType() == "call"
+                     and contains (entry.get("fun"), match);
+                };
+    }
+    
+    
+    /** this filter functor is for refinement of an existing filter
+     * @param argSeq perform a substring match consecutively
+     *        for each of the log entry's arguments
+     * @note the match also fails, when the given log entry
+     *       has more or less arguments, than the number of
+     *       given match expressions in `argSeq`
+     * @see ExtensibleFilterIter::andFilter()
+     */
+    inline auto
+    matchArguments (ArgSeq&& argSeq)
+    {
+      return [=](Entry const& entry)
+                {
+                  auto scope = entry.scope();
+                  for (auto const& match : argSeq)
+                    if (isnil (scope) or not contains(*scope, match))
+                      return false;
+                    else
+                      ++scope;
+                  
+                  return isnil(scope);  // must be exhausted by now
+                };                     //  otherwise the sizes do not match...
+    }
+    
+    
+    /** refinement filter, to cover all arguments by regular expression(s)
+     * @param regExpSeq several regular expressions, which, when applied
+     *        consecutively until exhaustion, must cover and verify _all_
+     *        arguments of the log entry.
+     * @remarks to explain, we "consume" arguments with a regExp from the list,
+     *        and when this one doesn't match anymore, we try the next one.
+     *        When we'ver tried all regular expressions, we must have also
+     *        consumed all arguments, otherwise we fail.
+     */
+    inline auto
+    matchArgsRegExp (RExSeq&& regExpSeq)
+    {
+      return [=](Entry const& entry)
+                {
+                  auto scope = entry.scope();
+                  for (auto const& rex : regExpSeq)
+                    {
+                      if (isnil (scope)) return false;
+                      while (scope and std::regex_search(*scope, rex))
+                        ++scope;
+                    }
+                  
+                  return isnil(scope);  // must be exhausted by now
+                };                     //  otherwise we didn't get full coverage...
+    }
+    
+    
+    /** refinement filter to match on the given typeID */
+    inline auto
+    matchType (string typeID)
+    {
+      return [=](Entry const& entry)
+                {
+                  return contains (entry.getType(), typeID);
+                };
+    }
+    
+    
+    /** refinement filter to ensure a specific attribute is present on the log entry */
+    inline auto
+    ensureAttribute (string key)
+    {
+      return [=](Entry const& entry)
+                {
+                  return entry.hasAttribute(key);
+                };
+    }
+    
+    
+    /** refinement filter to ensure a specific attribute is present on the log entry */
+    inline auto
+    matchAttribute (string key, string valueMatch)
+    {
+      return [=](Entry const& entry)
+                {
+                  return entry.hasAttribute(key)
+                     and contains (entry.get(key), valueMatch);
+                };
+    }
+    
+    
+    
+    /* === configure the underlying search engine === */
+    
+    enum Direction {
+      FORWARD, BACKWARD, CURRENT
+    };
+    
+    template<typename COND>
+    inline void
+    attachNextSerchStep (Filter& solution, COND&& filter, Direction direction)
+    {
+      if (CURRENT == direction)
+        solution.search (forward<COND> (filter));
+      else
+        solution.addStep ([predicate{forward<COND> (filter)}, direction]
+                          (auto& filter)
+                            {
+                              filter.reverse (BACKWARD == direction);
+                              filter.disableFilter();  // deactivate any filtering temporarily
+                              ++filter;               //  move one step in the required direction
+                              filter.setNewFilter (predicate);
+                            });
+    }
+    
+    template<typename COND>
+    inline void
+    refineSerach (Filter& solution, COND&& additionalFilter)
+    {
+      solution.addStep ([predicate{forward<COND> (additionalFilter)}]
+                        (auto& filter)
+                          {
+                            filter.andFilter (predicate);
+                          });
+    }
+    
+  }//(End) Elementary Matchers and handling of the search engine
+  
+  
+  
+  
+  
+  EventMatch::EventMatch (Log const& srcSeq)
+    : solution_{buildSearchFilter (srcSeq)}
+    , lastMatch_{"HEAD "+ solution_->get("this")}
+    , look_for_match_{true}
+    , violation_{}
+    { }
+  
+  
+  
+  /** core of the evaluation machinery:
+   * apply a filter predicate and then pull
+   * through the log to find a acceptable entry
+   */
+  bool
+  EventMatch::foundSolution()
+  {
+    return not isnil (solution_);
+  }
+  
+  
+  /** this is actually called after each refinement of
+   * the filter and matching conditions. The effect is to search
+   * for an (intermediary) solution right away and to mark failure
+   * as soon as some condition can not be satisfied. Rationale is to
+   * indicate the point where a chained match fails
+   * @see ::operator bool() for extracting the result
+   * @param matchSpec diagnostics description of the predicate just being added
+   * @param rel indication of the searching relation / direction
+   */
+  void
+  EventMatch::evaluateQuery (string matchSpec, Literal rel)
+  {
+    if (look_for_match_ and not isnil (violation_)) return;
+       // already failed, no further check necessary
+    
+    if (foundSolution()) // NOTE this pulls the filter
+      {
+        lastMatch_ = matchSpec+" @ "+string(*solution_)
+                   + (isnil(lastMatch_)? ""
+                                       : "\n.."+rel+" "+lastMatch_);
+        if (not look_for_match_)
+          violation_ = "FOUND at least "+lastMatch_;
+      }
+    else
+      {
+        if (look_for_match_)
+          violation_ = "FAILED to "+matchSpec
+                     + "\n.."+rel
+                     + " "+lastMatch_;
+        else
+          violation_ = "";
+      }
+  }
+
+    
+    
+  /**
+   * basic search function: continue linear lookup over the elements of the
+   * EventLog to find a match (substring match) of the given text. The search begins
+   * at the current position and proceeds in the currently configured direction.
+   * Initially the search starts at the first record and proceeds forward.
+   */
+  EventMatch&
+  EventMatch::locate (string match)
+  {
+    attachNextSerchStep (solution_, find(match), CURRENT);
+    evaluateQuery ("match(\""+match+"\")");
+    return *this;
+  }
+  
+  /**
+   * basic search like locate() but with the given regular expression
+   */
+  EventMatch&
+  EventMatch::locateMatch (string regExp)
+  {
+    attachNextSerchStep (solution_, findRegExp(regExp), CURRENT);
+    evaluateQuery ("find-RegExp(\""+regExp+"\")");
+    return *this;
+  }
+  
+  /**
+   * basic search for a matching  "event"
+   * @param match perform a substring match against the arguments of the event
+   * @see beforeEvent() for a description of possible "events"
+   */
+  EventMatch&
+  EventMatch::locateEvent (string match)
+  {
+    attachNextSerchStep (solution_, findEvent(match), CURRENT);
+    evaluateQuery ("match-event(\""+match+"\")");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::locateEvent (string classifier, string match)
+  {
+    attachNextSerchStep (solution_, findEvent(classifier,match), CURRENT);
+    evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
+    return *this;
+  }
+  
+  /**
+   * basic search for some specific function invocation
+   * @param match perform a substring match against the name of the function invoked
+   */
+  EventMatch&
+  EventMatch::locateCall (string match)
+  {
+    attachNextSerchStep (solution_, findCall(match), CURRENT);
+    evaluateQuery ("match-call(\""+match+"\")");
+    return *this;
+  }
+  
+  
+  
+  
+  /**
+   * find a match (substring match) of the given text
+   * in an EventLog entry after the current position
+   * @remarks the name of this junctor might seem counter intuitive;
+   *          it was chosen due to expected DSL usage: `log.verify("α").before("β")`.
+   *          Operationally this means first to find a Record matching the substring "α"
+   *          and then to forward from this point until hitting a record to match "β".
+   */
+  EventMatch&
+  EventMatch::before (string match)
+  {
+    attachNextSerchStep (solution_, find(match), FORWARD);
+    evaluateQuery ("match(\""+match+"\")");
+    return *this;
+  }
+  
+  /**
+   * find a match with the given regular expression
+   */
+  EventMatch&
+  EventMatch::beforeMatch (string regExp)
+  {
+    attachNextSerchStep (solution_, findRegExp(regExp), FORWARD);
+    evaluateQuery ("find-RegExp(\""+regExp+"\")");
+    return *this;
+  }
+  
+  /**
+   * find a match for an "event" _after_ the current point of reference
+   * @remarks the term "event" designates several types of entries, which
+   *          typically capture something happening within the observed entity.
+   *          Especially, the following [record types](\ref lib::Record::getType())
+   *          qualify as event:
+   *          - `event`
+   *          - `error`
+   *          - `create`
+   *          - `destroy`
+   *          - `logJoin`
+   * @param match perform a substring match against the arguments of the event
+   * @see ::findEvent
+   */
+  EventMatch&
+  EventMatch::beforeEvent (string match)
+  {
+    attachNextSerchStep (solution_, findEvent(match), FORWARD);
+    evaluateQuery ("match-event(\""+match+"\")");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::beforeEvent (string classifier, string match)
+  {
+    attachNextSerchStep (solution_, findEvent(classifier,match), FORWARD);
+    evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
+    return *this;
+  }
+  
+  /**
+   * find a match for some function invocation _after_ the current point of reference
+   * @param match perform a substring match against the name of the function invoked
+   * @see ::findCall
+   */
+  EventMatch&
+  EventMatch::beforeCall (string match)
+  {
+    attachNextSerchStep (solution_, findCall(match), FORWARD);
+    evaluateQuery ("match-call(\""+match+"\")");
+    return *this;
+  }
+  
+  
+  
+  
+  /**
+   * find a match (substring match) of the given text
+   * in an EventLog entry _before_ the current position,
+   * switching to backwards search direction
+   */
+  EventMatch&
+  EventMatch::after (string match)
+  {
+    attachNextSerchStep (solution_, find(match), BACKWARD);
+    evaluateQuery ("match(\""+match+"\")", "before");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::afterMatch (string regExp)
+  {
+    attachNextSerchStep (solution_, findRegExp(regExp), BACKWARD);
+    evaluateQuery ("find-RegExp(\""+regExp+"\")", "before");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::afterEvent (string match)
+  {
+    attachNextSerchStep (solution_, findEvent(match), BACKWARD);
+    evaluateQuery ("match-event(\""+match+"\")", "before");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::afterEvent (string classifier, string match)
+  {
+    attachNextSerchStep (solution_, findEvent(classifier,match), BACKWARD);
+    evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")", "before");
+    return *this;
+  }
+  
+  /**
+   * find a function invocation backwards, before the current point of reference
+   */
+  EventMatch&
+  EventMatch::afterCall (string match)
+  {
+    attachNextSerchStep (solution_, findCall(match), BACKWARD);
+    evaluateQuery ("match-call(\""+match+"\")", "before");
+    return *this;
+  }
+  
+  
+  
+  /**
+   * @internal refine filter condition additionally to match the call arguments.
+   */
+  void
+  EventMatch::refineSerach_matchArguments (ArgSeq&& argSeq)
+  {
+    string argList(util::join(argSeq));
+    refineSerach (solution_, matchArguments(move(argSeq)));
+    evaluateQuery ("match-arguments("+argList+")");
+  }
+  
+  /**
+   * @internal refine filter condition additionally to cover call arguments by
+   *    a sequence of regular expressions. Each regExp is used consecutively,
+   *    until it fails to match; at that point, the next regExp is tried.
+   *    When reaching the end of the argument sequence, we also expect
+   *    to have used up all available regular expressions.
+   */
+  void
+  EventMatch::refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
+  {
+    refineSerach (solution_, matchArgsRegExp (move (regExpSeq)));
+    evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
+  }
+  
+  
+  
+  /**
+   * refine filter to additionally require a matching log entry type
+   */
+  EventMatch&
+  EventMatch::type (string typeID)
+  {
+    refineSerach (solution_, matchType(typeID));
+    evaluateQuery ("match-type("+typeID+")");
+    return *this;
+  }
+  
+  /**
+   * refine filter to additionally require the presence an attribute
+   */
+  EventMatch&
+  EventMatch::key (string key)
+  {
+    refineSerach (solution_, ensureAttribute(key));
+    evaluateQuery ("ensure-attribute("+key+")");
+    return *this;
+  }
+  
+  /**
+   * refine filter to additionally match on a specific attribute
+   */
+  EventMatch&
+  EventMatch::attrib (string key, string valueMatch)
+  {
+    refineSerach (solution_, matchAttribute(key,valueMatch));
+    evaluateQuery ("match-attribute("+key+"=\""+valueMatch+"\")");
+    return *this;
+  }
+  
+  /**
+   * refine filter to additionally match on the ID attribute
+   */
+  EventMatch&
+  EventMatch::id (string classifier)
+  {
+    refineSerach (solution_, matchAttribute("ID",classifier));
+    evaluateQuery ("match-ID(\""+classifier+"\")");
+    return *this;
+  }
+  
+  /**
+   * refine filter to additionally match the `'this'` attribute
+   */
+  EventMatch&
+  EventMatch::on (string targetID)
+  {
+    refineSerach (solution_, matchAttribute("this",targetID));
+    evaluateQuery ("match-this(\""+targetID+"\")");
+    return *this;
+  }
+  
+  EventMatch&
+  EventMatch::on (const char* targetID)
+  {
+    refineSerach (solution_, matchAttribute("this",targetID));
+    evaluateQuery ("match-this(\""+string(targetID)+"\")");
+    return *this;
+  }
+
+  
+  
+  
+  
+  /* ==== EventLog implementation ==== */
+
+  EventLog::EventLog (string logID)
+    : log_(new Log)
+    {
+      log({"type=EventLogHeader", "this="+logID});
+    }
+  
+  
+  /**
+   * @remarks EventLog uses a heap based, sharable log storage,
+   *          where the EventLog object is just a front-end (shared ptr).
+   *          The `joinInto` operation both integrates this logs contents
+   *          into the other log, and then disconnects from the old storage
+   *          and connects to the storage of the combined log.
+   * @warning beware of clone copies. Since copying EventLog is always a
+   *          shallow copy, all copied handles actually refer to the same
+   *          log storage. If you invoke `joinInto` in such a situation,
+   *          only the current EventLog front-end handle will be rewritten
+   *          to point to the combined log, while any other clone will
+   *          continue to point to the original log storage.
+   */
+  EventLog&
+  EventLog::joinInto (EventLog& otherLog)
+  {
+    Log& target = *otherLog.log_;
+    target.reserve (target.size() + log_->size() + 1);
+    target.emplace_back (log_->front());
+    auto p = log_->begin();
+    while (++p != log_->end()) // move our log's content into the other log
+      target.emplace_back (std::move(*p));
+    this->log_->resize(1);
+    this->log({"type=joined", otherLog.getID()});   // leave a tag to indicate
+    otherLog.log({"type=logJoin", this->getID()}); //  where the `joinInto` took place,
+    this->log_ = otherLog.log_;                   //   connect this to the other storage
+    return *this;
+  }
+  
+  
+  
+  EventLog&
+  EventLog::clear()
+  {
+    string originalLogID = this->getID();
+    return this->clear (originalLogID);
+  }
+  
+  /** purge log contents and also reset Header-ID
+   * @note actually we're starting a new log
+   *       and let the previous one go away.
+   * @warning while this also unties any joined logs,
+   *       other log front-ends might still hold onto
+   *       the existing, combined log. Just we are
+   *       detached and writing to a pristine log.
+   */
+  EventLog&
+  EventLog::clear (string alteredLogID)
+  {
+    log_.reset (new Log);
+    log({"type=EventLogHeader", "this="+alteredLogID});
+    return *this;
+  }
+  
+  EventLog&
+  EventLog::clear (const char* alteredLogID)
+  {
+    return clear (string{alteredLogID});
+  }
+  
+  
+  
+  /* ==== Logging API ==== */
+  
+  EventLog&
+  EventLog::event (string text)
+  {
+    log ("event", ArgSeq{}, ArgSeq{text});  // we use this ctor variant to ensure
+    return *this;                          //  that text is not misinterpreted as attribute,
+  }                                       //   which might happen when text contains a '='
+  
+  EventLog&
+  EventLog::event (string classifier, string text)
+  {
+    log ("event", ArgSeq{"ID="+classifier}, ArgSeq{text});
+    return *this;
+  }
+  
+  EventLog&
+  EventLog::call (string target, string function)
+  {
+    return call(target, function, ArgSeq());
+  }
+  
+  EventLog&
+  EventLog::call (string target, string function, ArgSeq&& args)
+  {
+    log ("call", ArgSeq{"fun="+function, "this="+target}, std::forward<ArgSeq>(args));
+    return *this;
+  }
+  
+  EventLog&
+  EventLog::call (const char* target, const char* function, ArgSeq&& args)
+  {
+    return call (string(target), string(function), std::forward<ArgSeq>(args));
+  }
+  
+  
+  EventLog&
+  EventLog::warn (string text)
+  {
+    log({"type=warn", text});
+    return *this;
+  }
+  
+  EventLog&
+  EventLog::error (string text)
+  {
+    log({"type=error", text});
+    return *this;
+  }
+
+  EventLog&
+  EventLog::fatal (string text)
+  {
+    log({"type=fatal", text});
+    return *this;
+  }
+
+  
+  
+  EventLog&
+  EventLog::create (string text)
+  {
+    log({"type=create", text});
+    return *this;
+  }
+  
+  EventLog&
+  EventLog::destroy (string text)
+  {
+    log({"type=destroy", text});
+    return *this;
+  }
+  
+  
+  
+  
+  /* ==== Query/Verification API ==== */
+  
+  EventMatch
+  EventLog::verify (string match)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.locate (match);   // new matcher starts linear search from first log element
+    return matcher;
+  }
+  
+  
+  EventMatch
+  EventLog::verifyMatch (string regExp)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.locateMatch (regExp);
+    return matcher;
+  }
+  
+  
+  EventMatch
+  EventLog::verifyEvent (string match)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.locateEvent (match);
+    return matcher;
+  }
+  
+  
+  EventMatch
+  EventLog::verifyEvent (string classifier, string match)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.locateEvent (classifier, match);
+    return matcher;
+  }
+  
+  
+  EventMatch
+  EventLog::verifyCall (string match)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.locateCall (match);
+    return matcher;
   }
   
   
   /**
-   * @internal ongoing evaluation and match within an [EventLog].
-   * @remarks an EventMatch object is returned when building query expression
-   *          to verify the occurrence of some events within the EventLog.
-   *          This "matcher" object implements the query logic with backtracking.
-   *          The query expressions are added as filter functors to a filtering
-   *          iterator; when all of the log's contents are filtered away,
-   *          the evaluation counts as failed.
+   * @remarks the query expression is built similar to the other queries,
+   *          but the logic of evaluation is flipped: whenever we find any match
+   *          the overall result (when evaluating to `bool`) will be `false`.
+   * @warning this is not an proper exhaustive negation, since the implementation
+   *          does not proper backtracking with a stack of choices. This becomes
+   *          evident, when you combine `ensureNot()` with a switch in search
+   *          direction, like e.g. using `afterXXX` at some point in the chain.
    */
-  class EventMatch
-    {
-      using Filter = decltype( buildSearchFilter (std::declval<Log const&>()) );
-      
-      using ArgSeq = lib::diff::RecordSetup<string>::Storage;
-      using RExSeq = std::vector<std::regex>;
-      
-      
-      /** match predicate evaluator */
-      Filter solution_;
-      
-      /** record last match for diagnostics */
-      string lastMatch_;
-      
-      /** support for positive and negative queries. */
-      bool look_for_match_;
-      
-      /** record when the underlying query has failed */
-      string violation_;
-      
-      /** core of the evaluation machinery:
-       * apply a filter predicate and then pull
-       * through the log to find a acceptable entry
-       */
-      bool
-      foundSolution()
-        {
-          return not isnil (solution_);
-        }
-      
-      /** this is actually called after each refinement of
-       * the filter and matching conditions. The effect is to search
-       * for an (intermediary) solution right away and to mark failure
-       * as soon as some condition can not be satisfied. Rationale is to
-       * indicate the point where a chained match fails
-       * @see ::operator bool() for extracting the result
-       * @param matchSpec diagnostics description of the predicate just being added
-       * @param rel indication of the searching relation / direction
-       */
-      void
-      evaluateQuery (string matchSpec, Literal rel = "after")
-        {
-          if (look_for_match_ and not isnil (violation_)) return;
-             // already failed, no further check necessary
-          
-          if (foundSolution()) // NOTE this pulls the filter
-            {
-              lastMatch_ = matchSpec+" @ "+string(*solution_)
-                         + (isnil(lastMatch_)? ""
-                                             : "\n.."+rel+" "+lastMatch_);
-              if (not look_for_match_)
-                violation_ = "FOUND at least "+lastMatch_;
-            }
-          else
-            {
-              if (look_for_match_)
-                violation_ = "FAILED to "+matchSpec
-                           + "\n.."+rel
-                           + " "+lastMatch_;
-              else
-                violation_ = "";
-            }
-        }
-      
-      
-      /** @internal for creating EventLog matchers */
-      EventMatch(Log const& srcSeq)
-        : solution_{buildSearchFilter (srcSeq)}
-        , lastMatch_{"HEAD "+ solution_->get("this")}
-        , look_for_match_{true}
-        , violation_{}
-        { }
-      
-      friend class EventLog;
-      
-      
-      
-      /* == elementary matchers == */
-      
-      auto
-      find (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return contains (string(entry), match);
-                    };
-        }
-      
-      auto
-      findRegExp (string regExpDef)
-        {
-          std::regex regExp(regExpDef);
-          return [=](Entry const& entry)
-                    {
-                      return std::regex_search(string(entry), regExp);
-                    };
-        }
-      
-      auto
-      findEvent (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return (  entry.getType() == "event"
-                             or entry.getType() == "error"
-                             or entry.getType() == "create"
-                             or entry.getType() == "destroy"
-                             or entry.getType() == "logJoin"
-                             )
-                         and !isnil(entry.scope())
-                         and contains (*entry.scope(), match);
-                    };
-        }
-      
-      auto
-      findEvent (string classifier, string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return (  entry.getType() == classifier
-                             or (entry.hasAttribute("ID") and contains (entry.get("ID"), classifier))
-                             )
-                         and !isnil(entry.scope())
-                         and contains (*entry.scope(), match);
-                    };
-        }
-      
-      auto
-      findCall (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.getType() == "call"
-                         and contains (entry.get("fun"), match);
-                    };
-        }
-      
-      
-      /** this filter functor is for refinement of an existing filter
-       * @param argSeq perform a substring match consecutively
-       *        for each of the log entry's arguments
-       * @note the match also fails, when the given log entry
-       *       has more or less arguments, than the number of
-       *       given match expressions in `argSeq`
-       * @see ExtensibleFilterIter::andFilter()
-       */
-      auto
-      matchArguments (ArgSeq&& argSeq)
-        {
-          return [=](Entry const& entry)
-                    {
-                      auto scope = entry.scope();
-                      for (auto const& match : argSeq)
-                        if (isnil (scope) or not contains(*scope, match))
-                          return false;
-                        else
-                          ++scope;
-                      
-                      return isnil(scope);  // must be exhausted by now
-                    };                     //  otherwise the sizes do not match...
-        }
-      
-      
-      /** refinement filter, to cover all arguments by regular expression(s)
-       * @param regExpSeq several regular expressions, which, when applied
-       *        consecutively until exhaustion, must cover and verify _all_
-       *        arguments of the log entry.
-       * @remarks to explain, we "consume" arguments with a regExp from the list,
-       *        and when this one doesn't match anymore, we try the next one.
-       *        When we'ver tried all regular expressions, we must have also
-       *        consumed all arguments, otherwise we fail.
-       */
-      auto
-      matchArgsRegExp (RExSeq&& regExpSeq)
-        {
-          return [=](Entry const& entry)
-                    {
-                      auto scope = entry.scope();
-                      for (auto const& rex : regExpSeq)
-                        {
-                          if (isnil (scope)) return false;
-                          while (scope and std::regex_search(*scope, rex))
-                            ++scope;
-                        }
-                      
-                      return isnil(scope);  // must be exhausted by now
-                    };                     //  otherwise we didn't get full coverage...
-        }
-      
-      
-      /** refinement filter to match on the given typeID */
-      auto
-      matchType (string typeID)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return contains (entry.getType(), typeID);
-                    };
-        }
-      
-      
-      /** refinement filter to ensure a specific attribute is present on the log entry */
-      auto
-      ensureAttribute (string key)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.hasAttribute(key);
-                    };
-        }
-      
-      
-      /** refinement filter to ensure a specific attribute is present on the log entry */
-      auto
-      matchAttribute (string key, string valueMatch)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.hasAttribute(key)
-                         and contains (entry.get(key), valueMatch);
-                    };
-        }
-      
-      
-      /* === configure the underlying search engine === */
-      
-      enum Direction {
-        FORWARD, BACKWARD, CURRENT
-      };
-      
-      template<typename COND>
-      void
-      attachNextSerchStep (COND&& filter, Direction direction)
-        {
-          if (CURRENT == direction)
-            solution_.search (forward<COND> (filter));
-          else
-            solution_.addStep ([predicate{forward<COND> (filter)}, direction]
-                               (auto& filter)
-                                 {
-                                   filter.reverse (BACKWARD == direction);
-                                   filter.disableFilter();  // deactivate any filtering temporarily 
-                                   ++filter;               //  move one step in the required direction
-                                   filter.setNewFilter (predicate);
-                                 });
-        }
-      
-      template<typename COND>
-      void
-      refineSerach (COND&& additionalFilter)
-        {
-          solution_.addStep ([predicate{forward<COND> (additionalFilter)}]
-                             (auto& filter)
-                               {
-                                 filter.andFilter (predicate);
-                               });
-        }
-      
-      
-      
-    public:
-      /** final evaluation of the match query,
-       *  usually triggered from the unit test `CHECK()`.
-       * @note failure cause is printed to STDERR.
-       */
-      operator bool()  const
-        {
-          if (!isnil (violation_))
-            {
-              cerr << "__Log_condition_violated__\n"+violation_ <<"\n";
-              return false;
-            }
-          return true;
-        }
-      
-      
-      /**
-       * basic search function: continue linear lookup over the elements of the
-       * EventLog to find a match (substring match) of the given text. The search begins
-       * at the current position and proceeds in the currently configured direction.
-       * Initially the search starts at the first record and proceeds forward. 
-       */
-      EventMatch&
-      locate (string match)
-        {
-          attachNextSerchStep (find(match), CURRENT);
-          evaluateQuery ("match(\""+match+"\")");
-          return *this;
-        }
-      
-      /** basic search like locate() but with the given regular expression */
-      EventMatch&
-      locateMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), CURRENT);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")");
-          return *this;
-        }
-      
-      /** basic search for a matching  "event"
-       * @param match perform a substring match against the arguments of the event
-       * @see beforeEvent() for a description of possible "events"
-       */
-      EventMatch&
-      locateEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), CURRENT);
-          evaluateQuery ("match-event(\""+match+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      locateEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), CURRENT);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
-          return *this;
-        }
-      
-      /** basic search for some specific function invocation
-       * @param match perform a substring match against the name of the function invoked
-       */
-      EventMatch&
-      locateCall (string match)
-        {
-          attachNextSerchStep (findCall(match), CURRENT);
-          evaluateQuery ("match-call(\""+match+"\")");
-          return *this;
-        }
-      
-      /**
-       * find a match (substring match) of the given text
-       * in an EventLog entry after the current position
-       * @remarks the name of this junctor might seem counter intuitive;
-       *          it was chosen due to expected DSL usage: `log.verify("α").before("β")`.
-       *          Operationally this means first to find a Record matching the substring "α"
-       *          and then to forward from this point until hitting a record to match "β". 
-       */
-      EventMatch&
-      before (string match)
-        {
-          attachNextSerchStep (find(match), FORWARD);
-          evaluateQuery ("match(\""+match+"\")");
-          return *this;
-        }
-      
-      /** find a match with the given regular expression */
-      EventMatch&
-      beforeMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), FORWARD);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")");
-          return *this;
-        }
-      
-      /** find a match for an "event" _after_ the current point of reference
-       * @remarks the term "event" designates several types of entries, which
-       *          typically capture something happening within the observed entity.
-       *          Especially, the following [record types](\ref lib::Record::getType())
-       *          qualify as event:
-       *          - `event`
-       *          - `error`
-       *          - `create`
-       *          - `destroy`
-       *          - `logJoin`
-       * @param match perform a substring match against the arguments of the event
-       * @see ::findEvent
-       */
-      EventMatch&
-      beforeEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), FORWARD);
-          evaluateQuery ("match-event(\""+match+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      beforeEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), FORWARD);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
-          return *this;
-        }
-      
-      /** find a match for some function invocation _after_ the current point of reference
-       * @param match perform a substring match against the name of the function invoked
-       * @see ::findCall
-       */
-      EventMatch&
-      beforeCall (string match)
-        {
-          attachNextSerchStep (findCall(match), FORWARD);
-          evaluateQuery ("match-call(\""+match+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      after (string match)
-        {
-          attachNextSerchStep (find(match), BACKWARD);
-          evaluateQuery ("match(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), BACKWARD);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), BACKWARD);
-          evaluateQuery ("match-event(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), BACKWARD);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")", "before");
-          return *this;
-        }
-      
-      /** find a function invocation backwards, before the current point of reference */
-      EventMatch&
-      afterCall (string match)
-        {
-          attachNextSerchStep (findCall(match), BACKWARD);
-          evaluateQuery ("match-call(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      void
-      refineSerach_matchArguments (ArgSeq&& argSeq)
-        {
-          string argList(util::join(argSeq));
-          refineSerach (matchArguments(move(argSeq)));
-          evaluateQuery ("match-arguments("+argList+")");
-        }
-      
-      /** refine filter to additionally require specific arguments
-       * @remarks the refined filter works on each record qualified by the
-       *          query expression established thus far; it additionally
-       *          looks into the arguments (children list) of the log entry.
-       * @warning match is processed by comparison of string representation.
-       */
-      template<typename...ARGS>
-      EventMatch&
-      arg (ARGS const& ...args)
-        {
-          refineSerach_matchArguments (stringify<ArgSeq> (args...));
-          return *this;
-        }
-      
-      void
-      refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
-        {
-          refineSerach (matchArgsRegExp (move (regExpSeq)));
-          evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
-        }
-      
-      /** refine filter to additionally cover all arguments
-       *  with a series of regular expressions.
-       * @note For this match to succeed, any arguments of the log entry
-       *       must be covered by applying the given regular expressions
-       *       consecutively. Each regular expression is applied to further
-       *       arguments, as long as it matches. It is possible to have
-       *       just one RegExp to "rule them all", but as soon as there
-       *       is one argument, that can not be covered by the next
-       *       RegExp, the whole match counts as failed.
-       */
-      template<typename...ARGS>
-      EventMatch&
-      argMatch (ARGS const& ...regExps)
-        {
-          refineSerach_matchArgsRegExp (stringify<RExSeq> (regExps...),
-                                        util::join(stringify<ArgSeq>(regExps...)));
-          return *this;
-        }
-      
-      /** refine filter to additionally require a matching log entry type */
-      EventMatch&
-      type (string typeID)
-        {
-          refineSerach (matchType(typeID));
-          evaluateQuery ("match-type("+typeID+")");
-          return *this;
-        }
-      
-      /** refine filter to additionally require the presence an attribute */
-      EventMatch&
-      key (string key)
-        {
-          refineSerach (ensureAttribute(key));
-          evaluateQuery ("ensure-attribute("+key+")");
-          return *this;
-        }
-      
-      /** refine filter to additionally match on a specific attribute */
-      EventMatch&
-      attrib (string key, string valueMatch)
-        {
-          refineSerach (matchAttribute(key,valueMatch));
-          evaluateQuery ("match-attribute("+key+"=\""+valueMatch+"\")");
-          return *this;
-        }
-      
-      /** refine filter to additionally match on the ID attribute */
-      EventMatch&
-      id (string classifier)
-        {
-          refineSerach (matchAttribute("ID",classifier));
-          evaluateQuery ("match-ID(\""+classifier+"\")");
-          return *this;
-        }
-      
-      /** refine filter to additionally match the `'this'` attribute */
-      EventMatch&
-      on (string targetID)
-        {
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+targetID+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      on (const char* targetID)
-        {
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+string(targetID)+"\")");
-          return *this;
-        }
-      
-      template<typename X>
-      EventMatch&
-      on (const X *const targetObj)
-        {
-          string targetID = idi::instanceTypeID (targetObj);
-          return this->on(targetID);
-        }
-    };
-  
-  
-  
-  
-  
-  /****************************************************************//**
-   * Helper to log and verify the occurrence of events.
-   * The EventLog object is a front-end handle, logging flexible
-   * [information records](\ref lib::Record) into a possibly shared (vector)
-   * buffer in heap storage. An extended query DSL allows to write
-   * assertions to cover the occurrence of events in unit tests.
-   * @see TestEventLog_test
-   */
-  class EventLog
-    {
-      
-      std::shared_ptr<Log> log_;
-      
-      
-      void
-      log (std::initializer_list<string> const& ili)
-        {
-          log_->emplace_back(ili);
-        }
-      
-      template<typename ATTR, typename ARGS>
-      void
-      log (Symbol typeID, ATTR&& attribs, ARGS&& args)
-        {
-          log_->emplace_back(typeID, std::forward<ATTR>(attribs)
-                                   , std::forward<ARGS>(args));
-        }
-      
-      string
-      getID()  const
-        {
-          return log_->front().get("this");
-        }
-      
-      
-    public:
-      explicit
-      EventLog (string logID)
-        : log_(new Log)
-        {
-          log({"type=EventLogHeader", "this="+logID});
-        }
-      
-      explicit
-      EventLog (const char* logID)
-        : EventLog(string(logID))
-        { }
-      
-      template<class X>
-      explicit
-      EventLog (const X *const obj)
-        : EventLog(idi::instanceTypeID (obj))
-        { }
-      
-      
-      // standard copy operations acceptable
-      
-      
-      /** Merge this log into another log, forming a combined log
-       * @param otherLog target to integrate this log's contents into.
-       * @return reference to the merged new log instance
-       * @remarks EventLog uses a heap based, sharable log storage,
-       *          where the EventLog object is just a front-end (shared ptr).
-       *          The `joinInto` operation both integrates this logs contents
-       *          into the other log, and then disconnects from the old storage
-       *          and connects to the storage of the combined log.
-       * @warning beware of clone copies. Since copying EventLog is always a
-       *          shallow copy, all copied handles actually refer to the same
-       *          log storage. If you invoke `joinInto` in such a situation,
-       *          only the current EventLog front-end handle will be rewritten
-       *          to point to the combined log, while any other clone will
-       *          continue to point to the original log storage.
-       * @see TestEventLog_test::verify_logJoining()
-       */
-      EventLog&
-      joinInto (EventLog& otherLog)
-        {
-          Log& target = *otherLog.log_;
-          target.reserve (target.size() + log_->size() + 1);
-          target.emplace_back (log_->front());
-          auto p = log_->begin();
-          while (++p != log_->end()) // move our log's content into the other log
-            target.emplace_back(std::move(*p));
-          this->log_->resize(1);
-          this->log({"type=joined", otherLog.getID()});   // leave a tag to indicate
-          otherLog.log({"type=logJoin", this->getID()}); //  where the `joinInto` took place,
-          this->log_ = otherLog.log_;                   //   connect this to the other storage
-          return *this;
-        }
-      
-      
-      /** purge log contents while retaining just the original Header-ID */
-      EventLog&
-      clear()
-        {
-          string originalLogID = this->getID();
-          return this->clear (originalLogID);
-        }
-      
-      /** purge log contents and also reset Header-ID
-       * @note actually we're starting a new log
-       *       and let the previous one go away.
-       * @warning while this also unties any joined logs,
-       *       other log front-ends might still hold onto
-       *       the existing, combined log. Just we are
-       *       detached and writing to a pristine log.
-       */
-      EventLog&
-      clear (string alteredLogID)
-        {
-          log_.reset (new Log);
-          log({"type=EventLogHeader", "this="+alteredLogID});
-          return *this;
-        }
-      
-      EventLog&
-      clear (const char* alteredLogID)
-        {
-          return clear (string{alteredLogID});
-        }
-      
-      template<class X>
-      EventLog&
-      clear (const X *const obj)
-        {
-          return clear (idi::instanceTypeID (obj));
-        }
-      
-      
-      
-      /* ==== Logging API ==== */
-      
-      using ArgSeq = lib::diff::RecordSetup<string>::Storage;
-      
-      EventLog&
-      event (string text)
-        {
-          log ("event", ArgSeq{}, ArgSeq{text});  // we use this ctor variant to ensure
-          return *this;                          //  that text is not misinterpreted as attribute,
-        }                                       //   which might happen when text contains a '='
-      
-      /** log some event, with additional ID or classifier
-       * @param classifier info to be saved into the `ID` attribute
-       * @param text actual payload info, to be logged as argument
-       */
-      EventLog&
-      event (string classifier, string text)
-        {
-          log ("event", ArgSeq{"ID="+classifier}, ArgSeq{text});
-          return *this;
-        }
-      
-      /** Log occurrence of a function call with no arguments.
-       * @param target the object or scope on which the function is invoked
-       * @param function name of the function being invoked
-       */
-      EventLog&
-      call (string target, string function)
-        {
-          return call(target, function, ArgSeq());
-        }
-      
-      /** Log a function call with a sequence of stringified arguments */
-      EventLog&
-      call (string target, string function, ArgSeq&& args)
-        {
-          log ("call", ArgSeq{"fun="+function, "this="+target}, std::forward<ArgSeq>(args));
-          return *this;
-        }
-      
-      EventLog&
-      call (const char* target, const char* function, ArgSeq&& args)
-        {
-          return call (string(target), string(function), std::forward<ArgSeq>(args));
-        }
-      
-      /** Log a function call with arbitrary arguments */
-      template<typename...ARGS>
-      EventLog&
-      call (string target, string function, ARGS const& ...args)
-        {
-          return call (target, function, stringify<ArgSeq>(args...));
-        }
-      
-      /** Log a function call on given object ("`this`")... */
-      template<class X, typename...ARGS>
-      EventLog&
-      call (const X *const targetObj, string function, ARGS const& ...args)
-        {
-          return call (idi::instanceTypeID (targetObj), function, args...);
-        }
-      
-      template<typename...ARGS>
-      EventLog&
-      call (const char* target, string function, ARGS const& ...args)
-        {
-          return call (string(target), function, args...);
-        }
-      
-      template<typename...ELMS>
-      EventLog&
-      note (ELMS const& ...initialiser)
-        {
-          log_->emplace_back(stringify<ArgSeq> (initialiser...));
-          return *this;
-        }
-
-      
-      /** Log a warning entry */
-      EventLog&
-      warn (string text)
-        {
-          log({"type=warn", text});
-          return *this;
-        }
-
-      
-      /** Log an error note */
-      EventLog&
-      error (string text)
-        {
-          log({"type=error", text});
-          return *this;
-        }
-
-      
-      /** Log a fatal failure */
-      EventLog&
-      fatal (string text)
-        {
-          log({"type=fatal", text});
-          return *this;
-        }
-
-      
-      /** Log the creation of an object.
-       *  Such an entry can be [matched as event](\ref ::verifyEvent) */
-      EventLog&
-      create (string text)
-        {
-          log({"type=create", text});
-          return *this;
-        }
-
-      
-      /** Log the destruction of an object.
-       *  Can be matched as event. */
-      EventLog&
-      destroy (string text)
-        {
-          log({"type=destroy", text});
-          return *this;
-        }
-      
-      
-      
-      /* ==== Iteration ==== */
-      
-      bool
-      empty()  const
-        {
-          return 1 >= log_->size();  // do not count the log header
-        }
-      
-      
-      using Iter  = lib::RangeIter<Log::const_iterator>;
-      
-      typedef Iter const_iterator;
-      typedef const Entry value_type;
-      
-      const_iterator begin() const { return Iter(log_->begin(), log_->end()); }
-      const_iterator end()   const { return Iter(); }
-      
-      friend const_iterator begin (EventLog const& log) { return log.begin(); }
-      friend const_iterator end   (EventLog const& log) { return log.end(); }
-      
-      
-      
-      
-      /* ==== Query/Verification API ==== */
-      
-      /** start a query to match for some substring.
-       *  The resulting matcher object will qualify on any log entry
-       *  containing the given string. By adding subsequent further
-       *  query expressions on the returned [matcher object](\ref EventMatch),
-       *  the query can be refined. Moreover it is possible to chain up further
-       *  search queries, which will be executing starting from the position of the
-       *  previous match. The final result can be retrieved by `bool` conversion
-       */
-      EventMatch
-      verify (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locate (match);   // new matcher starts linear search from first log element
-          return matcher;
-        }
-      
-      /** start a query to match with a regular expression
-       * @param regExp definition
-       * @remarks the expression will work against the full
-       *          `string` representation of the log entries.
-       *          Meaning, it can also match type and attributes
-       */
-      EventMatch
-      verifyMatch (string regExp)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateMatch (regExp);
-          return matcher;
-        }
-      
-      /** start a query to match for some event.
-       * @remarks only a subset of all log entries is treated as "event",
-       *          any other log entry will not be considered for this query.
-       *          Besides the regular [events](\ref ::event()), also errors,
-       *          creation and destruction of objects count as "event".
-       * @param match text to (substring)match against the argument logged as event
-       */
-      EventMatch
-      verifyEvent (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateEvent (match);
-          return matcher;
-        }
-      
-      /** start a query to match for an specific kind of element
-       * @param classifier select kind of event by match on type or ID
-       */
-      EventMatch
-      verifyEvent (string classifier, string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateEvent (classifier, match);
-          return matcher;
-        }
-      
-      template<typename X>
-      EventMatch
-      verifyEvent (string classifier, X const& something)  const
-        {
-          return verifyEvent (classifier, util::toString (something));
-        }
-      
-      /** start a query to match especially a function call
-       * @param match text to match against the function name
-       */
-      EventMatch
-      verifyCall (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateCall (match);
-          return matcher;
-        }
-      
-      /** start a query to ensure the given expression does _not_ match.
-       * @remarks the query expression is built similar to the other queries,
-       *          but the logic of evaluation is flipped: whenever we find any match
-       *          the overall result (when evaluating to `bool`) will be `false`.
-       * @warning this is not an proper exhaustive negation, since the implementation
-       *          does not proper backtracking with a stack of choices. This becomes
-       *          evident, when you combine `ensureNot()` with a switch in search
-       *          direction, like e.g. using `afterXXX` at some point in the chain.
-       */
-      EventMatch
-      ensureNot (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.look_for_match_ = false; // flip logic; fail if match succeeds
-          matcher.locate (match);
-          return matcher;
-        }
-      
-      
-      /** equality comparison is based on the actual log contents */
-      friend bool
-      operator== (EventLog const& l1, EventLog const& l2)
-      {
-        return l1.log_ == l2.log_
-            or (l1.log_ and l2.log_
-                and *l1.log_ == *l2.log_);
-      }
-      friend bool
-      operator!= (EventLog const& l1, EventLog const& l2)
-      {
-        return not (l1 == l2);
-      }
-    };
+  EventMatch
+  EventLog::ensureNot (string match)  const
+  {
+    EventMatch matcher(*log_);
+    matcher.look_for_match_ = false; // flip logic; fail if match succeeds
+    matcher.locate (match);
+    return matcher;
+  }
   
   
   
diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index d00e46c65..c88042b71 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -80,12 +80,12 @@
 
 
 #include "lib/error.hpp"
-#include "lib/idi/entry-id.hpp"
-#include "lib/iter-chain-search.hpp"
 #include "lib/iter-cursor.hpp"
+#include "lib/iter-chain-search.hpp"
 #include "lib/format-util.hpp"
 #include "lib/format-cout.hpp"
 #include "lib/diff/record.hpp"
+#include "lib/idi/genfunc.hpp"
 #include "lib/symbol.hpp"
 #include "lib/util.hpp"
 
@@ -98,13 +98,10 @@
 
 namespace lib {
 namespace test{
-  namespace error = lumiera::error;
   
-  using util::stringify;
-  using util::contains;
-  using util::isnil;
   using lib::Symbol;
   using std::string;
+  using util::stringify;
   
   namespace {
     using Entry = lib::diff::Record<string>;
@@ -148,246 +145,14 @@ namespace test{
       /** record when the underlying query has failed */
       string violation_;
       
-      /** core of the evaluation machinery:
-       * apply a filter predicate and then pull
-       * through the log to find a acceptable entry
-       */
-      bool
-      foundSolution()
-        {
-          return not isnil (solution_);
-        }
-      
-      /** this is actually called after each refinement of
-       * the filter and matching conditions. The effect is to search
-       * for an (intermediary) solution right away and to mark failure
-       * as soon as some condition can not be satisfied. Rationale is to
-       * indicate the point where a chained match fails
-       * @see ::operator bool() for extracting the result
-       * @param matchSpec diagnostics description of the predicate just being added
-       * @param rel indication of the searching relation / direction
-       */
-      void
-      evaluateQuery (string matchSpec, Literal rel = "after")
-        {
-          if (look_for_match_ and not isnil (violation_)) return;
-             // already failed, no further check necessary
-          
-          if (foundSolution()) // NOTE this pulls the filter
-            {
-              lastMatch_ = matchSpec+" @ "+string(*solution_)
-                         + (isnil(lastMatch_)? ""
-                                             : "\n.."+rel+" "+lastMatch_);
-              if (not look_for_match_)
-                violation_ = "FOUND at least "+lastMatch_;
-            }
-          else
-            {
-              if (look_for_match_)
-                violation_ = "FAILED to "+matchSpec
-                           + "\n.."+rel
-                           + " "+lastMatch_;
-              else
-                violation_ = "";
-            }
-        }
       
       
       /** @internal for creating EventLog matchers */
-      EventMatch(Log const& srcSeq)
-        : solution_{buildSearchFilter (srcSeq)}
-        , lastMatch_{"HEAD "+ solution_->get("this")}
-        , look_for_match_{true}
-        , violation_{}
-        { }
+      EventMatch(Log const& srcSeq);
       
       friend class EventLog;
       
       
-      
-      /* == elementary matchers == */
-      
-      auto
-      find (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return contains (string(entry), match);
-                    };
-        }
-      
-      auto
-      findRegExp (string regExpDef)
-        {
-          std::regex regExp(regExpDef);
-          return [=](Entry const& entry)
-                    {
-                      return std::regex_search(string(entry), regExp);
-                    };
-        }
-      
-      auto
-      findEvent (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return (  entry.getType() == "event"
-                             or entry.getType() == "error"
-                             or entry.getType() == "create"
-                             or entry.getType() == "destroy"
-                             or entry.getType() == "logJoin"
-                             )
-                         and !isnil(entry.scope())
-                         and contains (*entry.scope(), match);
-                    };
-        }
-      
-      auto
-      findEvent (string classifier, string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return (  entry.getType() == classifier
-                             or (entry.hasAttribute("ID") and contains (entry.get("ID"), classifier))
-                             )
-                         and !isnil(entry.scope())
-                         and contains (*entry.scope(), match);
-                    };
-        }
-      
-      auto
-      findCall (string match)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.getType() == "call"
-                         and contains (entry.get("fun"), match);
-                    };
-        }
-      
-      
-      /** this filter functor is for refinement of an existing filter
-       * @param argSeq perform a substring match consecutively
-       *        for each of the log entry's arguments
-       * @note the match also fails, when the given log entry
-       *       has more or less arguments, than the number of
-       *       given match expressions in `argSeq`
-       * @see ExtensibleFilterIter::andFilter()
-       */
-      auto
-      matchArguments (ArgSeq&& argSeq)
-        {
-          return [=](Entry const& entry)
-                    {
-                      auto scope = entry.scope();
-                      for (auto const& match : argSeq)
-                        if (isnil (scope) or not contains(*scope, match))
-                          return false;
-                        else
-                          ++scope;
-                      
-                      return isnil(scope);  // must be exhausted by now
-                    };                     //  otherwise the sizes do not match...
-        }
-      
-      
-      /** refinement filter, to cover all arguments by regular expression(s)
-       * @param regExpSeq several regular expressions, which, when applied
-       *        consecutively until exhaustion, must cover and verify _all_
-       *        arguments of the log entry.
-       * @remarks to explain, we "consume" arguments with a regExp from the list,
-       *        and when this one doesn't match anymore, we try the next one.
-       *        When we'ver tried all regular expressions, we must have also
-       *        consumed all arguments, otherwise we fail.
-       */
-      auto
-      matchArgsRegExp (RExSeq&& regExpSeq)
-        {
-          return [=](Entry const& entry)
-                    {
-                      auto scope = entry.scope();
-                      for (auto const& rex : regExpSeq)
-                        {
-                          if (isnil (scope)) return false;
-                          while (scope and std::regex_search(*scope, rex))
-                            ++scope;
-                        }
-                      
-                      return isnil(scope);  // must be exhausted by now
-                    };                     //  otherwise we didn't get full coverage...
-        }
-      
-      
-      /** refinement filter to match on the given typeID */
-      auto
-      matchType (string typeID)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return contains (entry.getType(), typeID);
-                    };
-        }
-      
-      
-      /** refinement filter to ensure a specific attribute is present on the log entry */
-      auto
-      ensureAttribute (string key)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.hasAttribute(key);
-                    };
-        }
-      
-      
-      /** refinement filter to ensure a specific attribute is present on the log entry */
-      auto
-      matchAttribute (string key, string valueMatch)
-        {
-          return [=](Entry const& entry)
-                    {
-                      return entry.hasAttribute(key)
-                         and contains (entry.get(key), valueMatch);
-                    };
-        }
-      
-      
-      /* === configure the underlying search engine === */
-      
-      enum Direction {
-        FORWARD, BACKWARD, CURRENT
-      };
-      
-      template<typename COND>
-      void
-      attachNextSerchStep (COND&& filter, Direction direction)
-        {
-          if (CURRENT == direction)
-            solution_.search (forward<COND> (filter));
-          else
-            solution_.addStep ([predicate{forward<COND> (filter)}, direction]
-                               (auto& filter)
-                                 {
-                                   filter.reverse (BACKWARD == direction);
-                                   filter.disableFilter();  // deactivate any filtering temporarily 
-                                   ++filter;               //  move one step in the required direction
-                                   filter.setNewFilter (predicate);
-                                 });
-        }
-      
-      template<typename COND>
-      void
-      refineSerach (COND&& additionalFilter)
-        {
-          solution_.addStep ([predicate{forward<COND> (additionalFilter)}]
-                             (auto& filter)
-                               {
-                                 filter.andFilter (predicate);
-                               });
-        }
-      
-      
-      
     public:
       /** final evaluation of the match query,
        *  usually triggered from the unit test `CHECK()`.
@@ -395,7 +160,7 @@ namespace test{
        */
       operator bool()  const
         {
-          if (!isnil (violation_))
+          if (not util::isnil (violation_))
             {
               cerr << "__Log_condition_violated__\n"+violation_ <<"\n";
               return false;
@@ -404,174 +169,31 @@ namespace test{
         }
       
       
-      /**
-       * basic search function: continue linear lookup over the elements of the
-       * EventLog to find a match (substring match) of the given text. The search begins
-       * at the current position and proceeds in the currently configured direction.
-       * Initially the search starts at the first record and proceeds forward. 
-       */
-      EventMatch&
-      locate (string match)
-        {
-          attachNextSerchStep (find(match), CURRENT);
-          evaluateQuery ("match(\""+match+"\")");
-          return *this;
-        }
+      /* query builders to continue search at current position */
       
-      /** basic search like locate() but with the given regular expression */
-      EventMatch&
-      locateMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), CURRENT);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")");
-          return *this;
-        }
+      EventMatch& locate (string match);
+      EventMatch& locateMatch (string regExp);
+      EventMatch& locateEvent (string match);
+      EventMatch& locateEvent (string classifier, string match);
+      EventMatch& locateCall (string match);
       
-      /** basic search for a matching  "event"
-       * @param match perform a substring match against the arguments of the event
-       * @see beforeEvent() for a description of possible "events"
-       */
-      EventMatch&
-      locateEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), CURRENT);
-          evaluateQuery ("match-event(\""+match+"\")");
-          return *this;
-        }
       
-      EventMatch&
-      locateEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), CURRENT);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
-          return *this;
-        }
+      /* query builders to find a match stepping forwards */
       
-      /** basic search for some specific function invocation
-       * @param match perform a substring match against the name of the function invoked
-       */
-      EventMatch&
-      locateCall (string match)
-        {
-          attachNextSerchStep (findCall(match), CURRENT);
-          evaluateQuery ("match-call(\""+match+"\")");
-          return *this;
-        }
+      EventMatch& before (string match);
+      EventMatch& beforeMatch (string regExp);
+      EventMatch& beforeEvent (string match);
+      EventMatch& beforeEvent (string classifier, string match);
+      EventMatch& beforeCall (string match);
       
-      /**
-       * find a match (substring match) of the given text
-       * in an EventLog entry after the current position
-       * @remarks the name of this junctor might seem counter intuitive;
-       *          it was chosen due to expected DSL usage: `log.verify("α").before("β")`.
-       *          Operationally this means first to find a Record matching the substring "α"
-       *          and then to forward from this point until hitting a record to match "β". 
-       */
-      EventMatch&
-      before (string match)
-        {
-          attachNextSerchStep (find(match), FORWARD);
-          evaluateQuery ("match(\""+match+"\")");
-          return *this;
-        }
       
-      /** find a match with the given regular expression */
-      EventMatch&
-      beforeMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), FORWARD);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")");
-          return *this;
-        }
+      /* query builders to find a match stepping backwards */
       
-      /** find a match for an "event" _after_ the current point of reference
-       * @remarks the term "event" designates several types of entries, which
-       *          typically capture something happening within the observed entity.
-       *          Especially, the following [record types](\ref lib::Record::getType())
-       *          qualify as event:
-       *          - `event`
-       *          - `error`
-       *          - `create`
-       *          - `destroy`
-       *          - `logJoin`
-       * @param match perform a substring match against the arguments of the event
-       * @see ::findEvent
-       */
-      EventMatch&
-      beforeEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), FORWARD);
-          evaluateQuery ("match-event(\""+match+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      beforeEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), FORWARD);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")");
-          return *this;
-        }
-      
-      /** find a match for some function invocation _after_ the current point of reference
-       * @param match perform a substring match against the name of the function invoked
-       * @see ::findCall
-       */
-      EventMatch&
-      beforeCall (string match)
-        {
-          attachNextSerchStep (findCall(match), FORWARD);
-          evaluateQuery ("match-call(\""+match+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      after (string match)
-        {
-          attachNextSerchStep (find(match), BACKWARD);
-          evaluateQuery ("match(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterMatch (string regExp)
-        {
-          attachNextSerchStep (findRegExp(regExp), BACKWARD);
-          evaluateQuery ("find-RegExp(\""+regExp+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterEvent (string match)
-        {
-          attachNextSerchStep (findEvent(match), BACKWARD);
-          evaluateQuery ("match-event(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      EventMatch&
-      afterEvent (string classifier, string match)
-        {
-          attachNextSerchStep (findEvent(classifier,match), BACKWARD);
-          evaluateQuery ("match-event(ID=\""+classifier+"\", \""+match+"\")", "before");
-          return *this;
-        }
-      
-      /** find a function invocation backwards, before the current point of reference */
-      EventMatch&
-      afterCall (string match)
-        {
-          attachNextSerchStep (findCall(match), BACKWARD);
-          evaluateQuery ("match-call(\""+match+"\")", "before");
-          return *this;
-        }
-      
-      void
-      refineSerach_matchArguments (ArgSeq&& argSeq)
-        {
-          string argList(util::join(argSeq));
-          refineSerach (matchArguments(move(argSeq)));
-          evaluateQuery ("match-arguments("+argList+")");
-        }
+      EventMatch& after (string match);
+      EventMatch& afterMatch (string regExp);
+      EventMatch& afterEvent (string match);
+      EventMatch& afterEvent (string classifier, string match);
+      EventMatch& afterCall (string match);
       
       /** refine filter to additionally require specific arguments
        * @remarks the refined filter works on each record qualified by the
@@ -587,12 +209,6 @@ namespace test{
           return *this;
         }
       
-      void
-      refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
-        {
-          refineSerach (matchArgsRegExp (move (regExpSeq)));
-          evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
-        }
       
       /** refine filter to additionally cover all arguments
        *  with a series of regular expressions.
@@ -613,72 +229,39 @@ namespace test{
           return *this;
         }
       
-      /** refine filter to additionally require a matching log entry type */
-      EventMatch&
-      type (string typeID)
-        {
-          refineSerach (matchType(typeID));
-          evaluateQuery ("match-type("+typeID+")");
-          return *this;
-        }
       
-      /** refine filter to additionally require the presence an attribute */
-      EventMatch&
-      key (string key)
-        {
-          refineSerach (ensureAttribute(key));
-          evaluateQuery ("ensure-attribute("+key+")");
-          return *this;
-        }
       
-      /** refine filter to additionally match on a specific attribute */
-      EventMatch&
-      attrib (string key, string valueMatch)
-        {
-          refineSerach (matchAttribute(key,valueMatch));
-          evaluateQuery ("match-attribute("+key+"=\""+valueMatch+"\")");
-          return *this;
-        }
+      /* query builders to augment and refine the currently defined search condition*/
       
-      /** refine filter to additionally match on the ID attribute */
-      EventMatch&
-      id (string classifier)
-        {
-          refineSerach (matchAttribute("ID",classifier));
-          evaluateQuery ("match-ID(\""+classifier+"\")");
-          return *this;
-        }
-      
-      /** refine filter to additionally match the `'this'` attribute */
-      EventMatch&
-      on (string targetID)
-        {
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+targetID+"\")");
-          return *this;
-        }
-      
-      EventMatch&
-      on (const char* targetID)
-        {
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+string(targetID)+"\")");
-          return *this;
-        }
+      EventMatch& type (string typeID);
+      EventMatch& key (string key);
+      EventMatch& attrib (string key, string valueMatch);
+      EventMatch& id (string classifier);
+      EventMatch& on (string targetID);
+      EventMatch& on (const char* targetID);
       
       template<typename X>
-      EventMatch&
-      on (const X *const targetObj)
+      EventMatch& on (const X *const targetObj)
         {
           string targetID = idi::instanceTypeID (targetObj);
           return this->on(targetID);
         }
+      
+    private:
+      bool foundSolution();
+      void evaluateQuery (string matchSpec, Literal rel = "after");
+      
+      void refineSerach_matchArguments (ArgSeq&& argSeq);
+      void refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps);
     };
   
   
   
   
   
+  
+  
+  
   /****************************************************************//**
    * Helper to log and verify the occurrence of events.
    * The EventLog object is a front-end handle, logging flexible
@@ -716,11 +299,7 @@ namespace test{
       
     public:
       explicit
-      EventLog (string logID)
-        : log_(new Log)
-        {
-          log({"type=EventLogHeader", "this="+logID});
-        }
+      EventLog (string logID);
       
       explicit
       EventLog (const char* logID)
@@ -740,65 +319,15 @@ namespace test{
       /** Merge this log into another log, forming a combined log
        * @param otherLog target to integrate this log's contents into.
        * @return reference to the merged new log instance
-       * @remarks EventLog uses a heap based, sharable log storage,
-       *          where the EventLog object is just a front-end (shared ptr).
-       *          The `joinInto` operation both integrates this logs contents
-       *          into the other log, and then disconnects from the old storage
-       *          and connects to the storage of the combined log.
-       * @warning beware of clone copies. Since copying EventLog is always a
-       *          shallow copy, all copied handles actually refer to the same
-       *          log storage. If you invoke `joinInto` in such a situation,
-       *          only the current EventLog front-end handle will be rewritten
-       *          to point to the combined log, while any other clone will
-       *          continue to point to the original log storage.
        * @see TestEventLog_test::verify_logJoining()
        */
-      EventLog&
-      joinInto (EventLog& otherLog)
-        {
-          Log& target = *otherLog.log_;
-          target.reserve (target.size() + log_->size() + 1);
-          target.emplace_back (log_->front());
-          auto p = log_->begin();
-          while (++p != log_->end()) // move our log's content into the other log
-            target.emplace_back(std::move(*p));
-          this->log_->resize(1);
-          this->log({"type=joined", otherLog.getID()});   // leave a tag to indicate
-          otherLog.log({"type=logJoin", this->getID()}); //  where the `joinInto` took place,
-          this->log_ = otherLog.log_;                   //   connect this to the other storage
-          return *this;
-        }
+      EventLog& joinInto (EventLog& otherLog);
       
       
       /** purge log contents while retaining just the original Header-ID */
-      EventLog&
-      clear()
-        {
-          string originalLogID = this->getID();
-          return this->clear (originalLogID);
-        }
-      
-      /** purge log contents and also reset Header-ID
-       * @note actually we're starting a new log
-       *       and let the previous one go away.
-       * @warning while this also unties any joined logs,
-       *       other log front-ends might still hold onto
-       *       the existing, combined log. Just we are
-       *       detached and writing to a pristine log.
-       */
-      EventLog&
-      clear (string alteredLogID)
-        {
-          log_.reset (new Log);
-          log({"type=EventLogHeader", "this="+alteredLogID});
-          return *this;
-        }
-      
-      EventLog&
-      clear (const char* alteredLogID)
-        {
-          return clear (string{alteredLogID});
-        }
+      EventLog& clear();
+      EventLog& clear (string alteredLogID);
+      EventLog& clear (const char* alteredLogID);
       
       template<class X>
       EventLog&
@@ -813,47 +342,25 @@ namespace test{
       
       using ArgSeq = lib::diff::RecordSetup<string>::Storage;
       
-      EventLog&
-      event (string text)
-        {
-          log ("event", ArgSeq{}, ArgSeq{text});  // we use this ctor variant to ensure
-          return *this;                          //  that text is not misinterpreted as attribute,
-        }                                       //   which might happen when text contains a '='
+      /** log some text as event */
+      EventLog& event (string text);
       
       /** log some event, with additional ID or classifier
        * @param classifier info to be saved into the `ID` attribute
        * @param text actual payload info, to be logged as argument
        */
-      EventLog&
-      event (string classifier, string text)
-        {
-          log ("event", ArgSeq{"ID="+classifier}, ArgSeq{text});
-          return *this;
-        }
+      EventLog& event (string classifier, string text);
       
       /** Log occurrence of a function call with no arguments.
        * @param target the object or scope on which the function is invoked
        * @param function name of the function being invoked
        */
-      EventLog&
-      call (string target, string function)
-        {
-          return call(target, function, ArgSeq());
-        }
+      EventLog& call (string target, string function);
       
       /** Log a function call with a sequence of stringified arguments */
-      EventLog&
-      call (string target, string function, ArgSeq&& args)
-        {
-          log ("call", ArgSeq{"fun="+function, "this="+target}, std::forward<ArgSeq>(args));
-          return *this;
-        }
+      EventLog& call (string target, string function, ArgSeq&& args);
       
-      EventLog&
-      call (const char* target, const char* function, ArgSeq&& args)
-        {
-          return call (string(target), string(function), std::forward<ArgSeq>(args));
-        }
+      EventLog& call (const char* target, const char* function, ArgSeq&& args);
       
       /** Log a function call with arbitrary arguments */
       template<typename...ARGS>
@@ -882,56 +389,29 @@ namespace test{
       EventLog&
       note (ELMS const& ...initialiser)
         {
-          log_->emplace_back(stringify<ArgSeq> (initialiser...));
+          log_->emplace_back (stringify<ArgSeq> (initialiser...));
           return *this;
         }
 
       
       /** Log a warning entry */
-      EventLog&
-      warn (string text)
-        {
-          log({"type=warn", text});
-          return *this;
-        }
-
+      EventLog& warn (string text);
       
       /** Log an error note */
-      EventLog&
-      error (string text)
-        {
-          log({"type=error", text});
-          return *this;
-        }
-
+      EventLog& error (string text);
       
       /** Log a fatal failure */
-      EventLog&
-      fatal (string text)
-        {
-          log({"type=fatal", text});
-          return *this;
-        }
-
+      EventLog& fatal (string text);
       
       /** Log the creation of an object.
        *  Such an entry can be [matched as event](\ref ::verifyEvent) */
-      EventLog&
-      create (string text)
-        {
-          log({"type=create", text});
-          return *this;
-        }
+      EventLog& create (string text);
 
       
       /** Log the destruction of an object.
        *  Can be matched as event. */
-      EventLog&
-      destroy (string text)
-        {
-          log({"type=destroy", text});
-          return *this;
-        }
+      EventLog& destroy (string text);
+      
       
       
       
@@ -968,13 +448,7 @@ namespace test{
        *  search queries, which will be executing starting from the position of the
        *  previous match. The final result can be retrieved by `bool` conversion
        */
-      EventMatch
-      verify (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locate (match);   // new matcher starts linear search from first log element
-          return matcher;
-        }
+      EventMatch verify (string match)  const;
       
       /** start a query to match with a regular expression
        * @param regExp definition
@@ -982,13 +456,7 @@ namespace test{
        *          `string` representation of the log entries.
        *          Meaning, it can also match type and attributes
        */
-      EventMatch
-      verifyMatch (string regExp)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateMatch (regExp);
-          return matcher;
-        }
+      EventMatch verifyMatch (string regExp)  const;
       
       /** start a query to match for some event.
        * @remarks only a subset of all log entries is treated as "event",
@@ -997,24 +465,12 @@ namespace test{
        *          creation and destruction of objects count as "event".
        * @param match text to (substring)match against the argument logged as event
        */
-      EventMatch
-      verifyEvent (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateEvent (match);
-          return matcher;
-        }
+      EventMatch verifyEvent (string match)  const;
       
       /** start a query to match for an specific kind of element
        * @param classifier select kind of event by match on type or ID
        */
-      EventMatch
-      verifyEvent (string classifier, string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateEvent (classifier, match);
-          return matcher;
-        }
+      EventMatch verifyEvent (string classifier, string match)  const;
       
       template<typename X>
       EventMatch
@@ -1026,31 +482,13 @@ namespace test{
       /** start a query to match especially a function call
        * @param match text to match against the function name
        */
-      EventMatch
-      verifyCall (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.locateCall (match);
-          return matcher;
-        }
+      EventMatch verifyCall (string match)  const;
       
-      /** start a query to ensure the given expression does _not_ match.
-       * @remarks the query expression is built similar to the other queries,
-       *          but the logic of evaluation is flipped: whenever we find any match
-       *          the overall result (when evaluating to `bool`) will be `false`.
-       * @warning this is not an proper exhaustive negation, since the implementation
-       *          does not proper backtracking with a stack of choices. This becomes
-       *          evident, when you combine `ensureNot()` with a switch in search
-       *          direction, like e.g. using `afterXXX` at some point in the chain.
-       */
+      /** start a query to ensure the given expression does _not_ match. */
       EventMatch
-      ensureNot (string match)  const
-        {
-          EventMatch matcher(*log_);
-          matcher.look_for_match_ = false; // flip logic; fail if match succeeds
-          matcher.locate (match);
-          return matcher;
-        }
+      ensureNot (string match)  const;
+      
+      
       
       
       /** equality comparison is based on the actual log contents */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 8bd0f1099..0e5afa175 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -25091,9 +25091,9 @@
 <node COLOR="#338800" CREATED="1535815195338" ID="ID_1743938908" MODIFIED="1535815207849" TEXT="naive Implementierung">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535815210288" ID="ID_1041148737" MODIFIED="1535815475299" TEXT="Problem: kein wirkliches Backtracking">
+<node COLOR="#338800" CREATED="1535815210288" FOLDED="true" ID="ID_1041148737" MODIFIED="1537409267514" TEXT="Problem: kein wirkliches Backtracking">
 <linktarget COLOR="#80b3ba" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" SOURCE="ID_493114230" STARTARROW="None" STARTINCLINATION="838;114;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535835597691" ID="ID_218241863" MODIFIED="1535835683187" TEXT="wird relevant bei Richtungs-Wechsel">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -25128,9 +25128,9 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893431656" ID="ID_1626597975" MODIFIED="1535893590393" TEXT="Beschlu&#xdf;: umstellen auf TreeExplorer">
-<arrowlink COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" STARTARROW="None" STARTINCLINATION="1631;0;"/>
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535893431656" ID="ID_1626597975" MODIFIED="1537409091617" TEXT="Beschlu&#xdf;: umstellen auf TreeExplorer">
+<arrowlink COLOR="#3eccac" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" STARTARROW="None" STARTINCLINATION="1631;0;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1536441983485" ID="ID_330124350" MODIFIED="1537320197047" TEXT="Warnung: anonymous namespace">
 <richcontent TYPE="NOTE"><html>
@@ -30775,7 +30775,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514328717684" ID="ID_137835978" MODIFIED="1535892401183" TEXT="neuer Anlauf IterExplorer II">
+<node COLOR="#338800" CREATED="1514328717684" FOLDED="true" ID="ID_137835978" MODIFIED="1537409073389" TEXT="neuer Anlauf IterExplorer II">
 <arrowlink COLOR="#8ad3a5" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-230;134;" ID="Arrow_ID_253437970" STARTARROW="None" STARTINCLINATION="-387;0;"/>
 <linktarget COLOR="#27998e" DESTINATION="ID_137835978" ENDARROW="Default" ENDINCLINATION="-521;-801;" ID="Arrow_ID_1873000120" SOURCE="ID_1860662881" STARTARROW="None" STARTINCLINATION="-1866;98;"/>
 <icon BUILTIN="button_ok"/>
@@ -31611,9 +31611,9 @@
     </p>
   </body>
 </html></richcontent>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535893353955" ID="ID_1665477644" MODIFIED="1535893590393" TEXT="bestehende L&#xf6;sung umstellen">
-<linktarget COLOR="#cc3e57" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" SOURCE="ID_1626597975" STARTARROW="None" STARTINCLINATION="1631;0;"/>
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1535893353955" FOLDED="true" ID="ID_1665477644" MODIFIED="1537409248653" TEXT="bestehende L&#xf6;sung umstellen">
+<linktarget COLOR="#3eccac" DESTINATION="ID_1665477644" ENDARROW="Default" ENDINCLINATION="-4110;-2852;" ID="Arrow_ID_1163013232" SOURCE="ID_1626597975" STARTARROW="None" STARTINCLINATION="1631;0;"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1535893608745" ID="ID_11389264" MODIFIED="1535893673457" TEXT="Idee: Auswertungs-State">
 <icon BUILTIN="idea"/>
 <node CREATED="1535893623463" ID="ID_371015216" MODIFIED="1535893629458" TEXT="als State Core im Iterator"/>
@@ -31920,8 +31920,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1537400207423" TEXT="in eigene Translation-Unit verschieben">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1536368106394" FOLDED="true" ID="ID_1324169393" MODIFIED="1537409235841" TEXT="in eigene Translation-Unit verschieben">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537059357301" ID="ID_1501687281" MODIFIED="1537059360761" TEXT="Beobachtungen">
 <node CREATED="1536368121224" ID="ID_684768731" MODIFIED="1536368139195">
 <richcontent TYPE="NODE"><html>
@@ -31960,6 +31960,21 @@
 <icon BUILTIN="smiley-angry"/>
 </node>
 </node>
+<node CREATED="1537408492185" ID="ID_1391232995" MODIFIED="1537408509710" TEXT="nach Umstellung: hat nicht sonderlich viel gebracht">
+<icon BUILTIN="smily_bad"/>
+<node CREATED="1536368144661" ID="ID_1457614262" MODIFIED="1537408979742" TEXT="BusTerm_test = 11.7 MB">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+<node CREATED="1537408924511" ID="ID_764968453" MODIFIED="1537408971969" TEXT="AbstractTangible_test = 8.7">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+<node CREATED="1536368166242" ID="ID_40278059" MODIFIED="1537408966779" TEXT="EventLog_test = 4.5 MB">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1537409213000" ID="ID_980087931" MODIFIED="1537409228912" TEXT="aber: event-log.os = 5 MB">
+<icon BUILTIN="idea"/>
+</node>
+</node>
 </node>
 <node CREATED="1537059850803" ID="ID_253192903" MODIFIED="1537059853438" TEXT="Plan">
 <node CREATED="1537059854290" ID="ID_1281790716" MODIFIED="1537059867700" TEXT="der Typ der Search-Engine mu&#xdf; nicht verborgen werden"/>
@@ -31976,28 +31991,39 @@
 <node CREATED="1537059978146" ID="ID_1403964414" MODIFIED="1537059984405" TEXT="d.h. man kann dazwischen schneiden"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537400219755" TEXT="Umbau">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537408486805" TEXT="Umbau">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537402606149" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060024891" ID="ID_416527676" MODIFIED="1537060038043" TEXT="Ctor nach hinten schieben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060024891" ID="ID_416527676" MODIFIED="1537407285711" TEXT="Ctor nach hinten schieben">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060040409" ID="ID_440163527" MODIFIED="1537060051953" TEXT="Auswerte-Logik nach hinten schieben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060040409" ID="ID_440163527" MODIFIED="1537407287283" TEXT="Auswerte-Logik nach hinten schieben">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060054767" ID="ID_1081334498" MODIFIED="1537060092467" TEXT="Problem: private Matcher-Builder">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060094809" ID="ID_442340693" MODIFIED="1537060104954" TEXT="in freie Template-Funktionen verwandeln?">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060054767" ID="ID_1081334498" MODIFIED="1537407288629" TEXT="Problem: private Matcher-Builder">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537060094809" ID="ID_442340693" MODIFIED="1537407293640" TEXT="in freie Template-Funktionen verwandeln">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060267290" ID="ID_1006625301" MODIFIED="1537060278162" TEXT="auch die direkten Filter-Konfigurier-Funktionen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060267290" ID="ID_1006625301" MODIFIED="1537407322172" TEXT="die direkten Filter-Konfigurier-Funktionen ebenso">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      geht gar nicht anders, denn diese sind templates
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060121158" ID="ID_1857002867" MODIFIED="1537060136293" TEXT="Such-Funktionen nach hinten reichen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537060121158" ID="ID_1857002867" MODIFIED="1537407306625" TEXT="Such-Funktionen nach hinten reichen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 8fa3eb2517a69c7a357f5a44e17e422f7efa5a2b Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 21 Sep 2018 05:17:54 +0200
Subject: [PATCH 102/178] NotificationDisplay: integrate with the new
 Revealer-Functor (closes #1162)

after an extended digression to fix our matcher for tests on the EventLog,
the new helper abstractions gui::model::Expander and gui::model::Revealer
are now covered and ready for use.

In this special case here, the controller uses both the Expander and Revealer
inherited from model::Tangible; yet both are wired to access the actual
display widget via the getter, and delegate to the Expander rsp. Revealer
located within the widget. Which in turn are wired when creating the widget
within the InfoboxPanel.

Bottom line -- we have a generic scheme now, and the actual implementation
is filled in as lambda, at the point where the component or widget is created
---
 src/gui/ctrl/notification-hub.hpp    |  4 +--
 src/gui/model/expander-revealer.hpp  |  5 ++--
 src/gui/panel/infobox-panel.cpp      |  3 +++
 src/gui/widget/error-log-display.hpp |  7 +----
 wiki/thinkPad.ichthyo.mm             | 38 ++++++++++++++++++++++------
 5 files changed, 39 insertions(+), 18 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 638e6bc90..96f64aa49 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -152,7 +152,7 @@ namespace ctrl {
       doFlash()  override
         {
           if (not widget_) return;
-          widget_->revealYourself();
+          widget_->reveal();
           widget_->triggerFlash();
         }
       
@@ -173,7 +173,7 @@ namespace ctrl {
                                    getWidget().expand (yes);
                                }
                          );
-          installRevealer([&](){ getWidget().revealYourself(); }); // implementation implies also expand
+          installRevealer([&](){ getWidget().reveal(); }); // implementation implies also expand
         }
       
      ~NotificationHub() { };
diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index 8811ea96b..bdf91bba0 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -36,10 +36,10 @@
  ** 
  ** The base class of all [tangible UI elements](\ref Tangible) provides a default implementation
  ** for these generic interaction mechanism: It offers slots to connect UI signals against, and
- ** it understands the _`mark`_ messages "`expand`" and "`revealYourself`". These are implemented
+ ** it understands the \em `mark` messages `"expand"` and `"revealYourself"`. These are implemented
  ** by delegating to the \ref Expander and \ref Revealer functors respectively. Moreover, this
  ** default implementation automatically detects a resulting state change and emits an appropriate
- ** _`note`_ message on the UI-Bus, so to make those state changes persistent. However, in order
+ ** \em `note` message on the UI-Bus, so to make those state changes persistent. However, in order
  ** to supply an concrete implementation, depending on the circumstances, either the widget itself
  ** or a parent container holding the element needs to install lambdas into those functor holders,
  ** to detail what actually needs to be done. E.g. it is quite common to implement the "expand"
@@ -53,6 +53,7 @@
  ** install an appropriate Expander functor within their constructor.
  ** 
  ** @see [UI-Element protocol](\ref tangible.hpp)
+ ** @see [simple test case](\ref AbstractTangible_test::revealer())
  ** @see [usage example](\ref error-log-display.hpp)
  ** 
  */
diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 2c8d86996..c17910b73 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -98,6 +98,9 @@ namespace panel{
         theLog_->expand = model::Expander{[&]()         { return logExpander_.get_expanded(); }
                                          ,[&](bool yes) { logExpander_.set_expanded (yes); }
                                          };
+        theLog_->reveal = model::Revealer{[&]()         { Panel::show(true);
+                                                          theLog_->expand(true);
+                                         }              };
         frame_.set_border_width (5);
         frame_.add (logExpander_);
         frame_.show_all();
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 376ceea2f..7e4d59a7e 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -98,6 +98,7 @@ namespace widget {
         }
       
       model::Expander expand;
+      model::Revealer reveal;
       
       
       void
@@ -153,12 +154,6 @@ namespace widget {
           UNIMPLEMENTED ("paint and set callback-timeout to return to normal state");
         }
       
-      void
-      revealYourself()
-        {
-          UNIMPLEMENTED ("store a link to parent. Ask parent to reveal us. Switch to expanded display");
-        }
-
       
       
     private:/* ===== Internals ===== */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0e5afa175..b77d5ef85 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2045,8 +2045,23 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1535756101199" TEXT="konkret was machen, damit man die Funktion sehen kann">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1537459860078" TEXT="konkret was machen, damit man die Funktion sehen kann">
+<linktarget COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" SOURCE="ID_1726008784" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 <icon BUILTIN="flag-pink"/>
+<node CREATED="1537461362558" ID="ID_1738911844" MODIFIED="1537461379041" TEXT="Idee: ggfs minimiertes DockItem wiederherstellen">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1537499243954" ID="ID_971802810" MODIFIED="1537499360773" TEXT="versuche mal Panel::show(true)">
+<icon BUILTIN="help"/>
+<node COLOR="#338800" CREATED="1537499275630" ID="ID_1288942046" MODIFIED="1537499354292" TEXT="verdrahtet in den Revealer">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537499313305" ID="ID_1086105877" MODIFIED="1537499333065" TEXT="von ErrorLogDisplay"/>
+<node CREATED="1537499333798" ID="ID_57237574" MODIFIED="1537499352071" TEXT="verdrahtet in InfoboxPanel::getLog()"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537499267335" ID="ID_608745909" MODIFIED="1537499372012" TEXT="keine Ahnung ob das was bewirkt">
+<icon BUILTIN="bell"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -2152,7 +2167,7 @@
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1535814842908" TEXT="mit close-signal verdrahten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1537461348507" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="stop-sign"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
 <icon BUILTIN="broken-line"/>
@@ -2387,8 +2402,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1534636350863" TEXT="ebenfalls explizit zu bauen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1537499519266" TEXT="ebenfalls explizit zu bauen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534636352398" ID="ID_435790811" MODIFIED="1534636448600" TEXT="&#xe4;hnliche Lage wie bei Destroy">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -2414,14 +2429,17 @@
 <arrowlink COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1534636392354" TEXT="k&#xf6;nnte Lumiera-Framework werden">
+<node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1537499412751" TEXT="Lumiera-Framework: Revealer">
 <icon BUILTIN="yes"/>
+<node COLOR="#338800" CREATED="1537499427673" ID="ID_671371282" MODIFIED="1537499435729" TEXT="#1162 helper abstractions for generic widgets">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 </node>
 <node CREATED="1534721937152" ID="ID_1396835945" MODIFIED="1534721944841" TEXT="macht aber nicht der Controller">
 <icon BUILTIN="yes"/>
 <node CREATED="1534721946351" ID="ID_1570295012" MODIFIED="1534721954170" TEXT="typisches OO-Design"/>
-<node CREATED="1534721955070" ID="ID_1390682663" MODIFIED="1534722916337" TEXT="der Controller sagt nur &quot;revealYourself&quot;">
+<node CREATED="1534721955070" ID="ID_1390682663" MODIFIED="1537499200269" TEXT="der Controller ruft nur getWidget().reveal() auf">
 <linktarget COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" SOURCE="ID_558411855" STARTARROW="None" STARTINCLINATION="109;16;"/>
 <icon BUILTIN="idea"/>
 </node>
@@ -2457,7 +2475,7 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1535752377006" TEXT="doRevealYourself()">
 <icon BUILTIN="pencil"/>
-<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1534120253931">
+<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1537459860078">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -2471,6 +2489,7 @@
     </p>
   </body>
 </html></richcontent>
+<arrowlink COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534725759893" TEXT="doReset()">
@@ -18835,6 +18854,9 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1537499427673" ID="ID_1035982675" MODIFIED="1537499435729" TEXT="#1162 helper abstractions for generic widgets">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 <node CREATED="1455421282030" HGAP="54" ID="ID_1448430954" MODIFIED="1518487921086" TEXT="state mark" VSHIFT="12">
 <icon BUILTIN="button_ok"/>
@@ -37962,7 +37984,7 @@
 </node>
 <node CREATED="1534511566130" HGAP="93" ID="ID_833641481" MODIFIED="1534512921306" TEXT="libGDL" VSHIFT="-58">
 <linktarget COLOR="#39478f" DESTINATION="ID_833641481" ENDARROW="Default" ENDINCLINATION="-1307;0;" ID="Arrow_ID_214595057" SOURCE="ID_358403014" STARTARROW="None" STARTINCLINATION="-2073;0;"/>
-<node CREATED="1534511647623" ID="ID_586745535" MODIFIED="1534511657393" TEXT="&quot;Gnome Diocking Library&quot;">
+<node CREATED="1534511647623" ID="ID_586745535" MODIFIED="1537461227333" TEXT="&quot;Gnome Docking Library&quot;">
 <node CREATED="1534511675819" ID="ID_458805224" MODIFIED="1534511684396" TEXT="wird auch von Anjuta genutzt"/>
 <node CREATED="1534511663333" ID="ID_1116756676" MODIFIED="1534511675015" TEXT="historisch: Gnome Design Library"/>
 </node>

From 5a7a5a57206902f809e5d52cac2787eeb727e6bf Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 21 Sep 2018 13:46:42 +0200
Subject: [PATCH 103/178] DOC: fix syntax of some doxygen links

seemingly we really need the \ref in the link target expression
---
 src/common/guifacade.cpp                      |  2 +-
 src/common/query/query-resolver.hpp           |  2 +-
 src/gui/ctrl/bus-term.hpp                     |  2 +-
 src/gui/ctrl/core-service.hpp                 |  8 ++++----
 src/gui/ctrl/nexus.hpp                        |  4 ++--
 src/gui/interact/view-locator.cpp             |  4 ++--
 src/gui/interact/view-spec-dsl.hpp            |  2 +-
 src/gui/model/tangible.cpp                    |  2 +-
 src/gui/model/tangible.hpp                    |  8 ++++----
 src/gui/notification-service.cpp              |  2 +-
 src/gui/notification-service.hpp              |  2 +-
 src/gui/timeline/header-pane-widget.hpp       |  2 +-
 src/gui/timeline/layout-manager.hpp           |  2 +-
 src/gui/timeline/timeline-controller.hpp      |  2 +-
 src/gui/timeline/timeline-widget.hpp          |  2 +-
 src/gui/timeline/track-body.hpp               |  2 +-
 src/gui/ui-bus.cpp                            | 10 +++++-----
 src/gui/ui-bus.hpp                            |  4 ++--
 src/include/display-facade.h                  |  2 +-
 src/include/session-command-facade.h          |  4 ++--
 src/lib/diff/list-diff.hpp                    |  2 +-
 src/lib/diff/mutation-message.hpp             |  2 +-
 src/lib/format-cout.hpp                       |  2 +-
 src/lib/format-obj.cpp                        |  2 +-
 src/lib/format-obj.hpp                        |  2 +-
 src/lib/format-util.hpp                       |  2 +-
 src/lib/iter-chain-search.hpp                 |  2 +-
 src/lib/iter-cursor.hpp                       |  6 +++---
 src/lib/meta/trait.hpp                        |  4 ++--
 src/lib/meta/util.hpp                         |  2 +-
 src/proc/control/command-instance-manager.hpp |  2 +-
 src/proc/control/command-setup.cpp            |  4 ++--
 src/proc/control/command-setup.hpp            |  2 +-
 src/proc/control/command.hpp                  |  4 ++--
 src/proc/control/media-impl-lib.hpp           |  2 +-
 src/proc/engine/dispatcher.hpp                |  2 +-
 tests/gui/abstract-tangible-test.cpp          |  2 +-
 tests/gui/bus-term-test.cpp                   |  4 ++--
 tests/gui/model/element-access-test.cpp       |  2 +-
 tests/gui/test/mock-elm.hpp                   |  2 +-
 tests/gui/test/test-nexus.cpp                 | 10 +++++-----
 tests/gui/test/test-nexus.hpp                 |  4 ++--
 tests/library/iter-chain-search-test.cpp      |  2 +-
 tests/library/iter-cursor-test.cpp            |  2 +-
 44 files changed, 69 insertions(+), 69 deletions(-)

diff --git a/src/common/guifacade.cpp b/src/common/guifacade.cpp
index bde729f1e..25779272a 100644
--- a/src/common/guifacade.cpp
+++ b/src/common/guifacade.cpp
@@ -24,7 +24,7 @@
 /** @file guifacade.cpp
  ** Implementation of the GUI loader. Code generated from this
  ** translation unit is linked into the core application, where it implements
- ** the [Subsystem descriptor](subsys.hpp) for the _UI Subsystem._ When main()
+ ** the [Subsystem descriptor](\ref subsys.hpp) for the _UI Subsystem._ When main()
  ** activates and starts this subsystem, an instance of gui::GuiRunner will be
  ** created, which causes the Lumiera UI plug-in to be loaded and a new thread
  ** to be spawned, which launches the UI and performs the event loop.
diff --git a/src/common/query/query-resolver.hpp b/src/common/query/query-resolver.hpp
index 52ea1f231..0a6f2759d 100644
--- a/src/common/query/query-resolver.hpp
+++ b/src/common/query/query-resolver.hpp
@@ -96,7 +96,7 @@ namespace lumiera {
   /**
    * Interface: a facility for resolving (some kind of) queries
    * A concrete subclass has the ability to create Resolution instances
-   * in response to specific queries of some kind, [if applicable](QueryResolver::canHandle).
+   * in response to specific queries of some kind, [if applicable](\ref QueryResolver::canHandle).
    * Every resolution mechanism is expected to enrol by calling #installResolutionCase.
    * Such a registration is considered permanent; a factory function gets stored,
    * assuming that the entity to implement this function remains available
diff --git a/src/gui/ctrl/bus-term.hpp b/src/gui/ctrl/bus-term.hpp
index b2deb406d..d4b6f918c 100644
--- a/src/gui/ctrl/bus-term.hpp
+++ b/src/gui/ctrl/bus-term.hpp
@@ -34,7 +34,7 @@
  ** which it will be wired. Moreover, each BusTerm bears a distinct
  ** [identity](\ref BusTerm::endpointID_), which is used as _implicit subject_
  ** for emanating messages, or as explicit destination for routing.
- ** The whole [UI-Bus](ui-bus.hpp) is built to perform within the
+ ** The whole [UI-Bus](\ref ui-bus.hpp) is built to perform within the
  ** UI event thread and thus is _not threadsafe_. For that reason,
  ** the automatic detachment built into each BusTerm's dtor is
  ** sufficient to ensure sane connectivity.
diff --git a/src/gui/ctrl/core-service.hpp b/src/gui/ctrl/core-service.hpp
index 61cb7775a..8c23fc7b7 100644
--- a/src/gui/ctrl/core-service.hpp
+++ b/src/gui/ctrl/core-service.hpp
@@ -47,8 +47,8 @@
  ** routing table in Nexus, can be addressed as a _first class citizen,_
  ** that is, we're able to direct messages towards such an element, knowing
  ** only it's ID. But there is a twist: all connections to the Bus are made
- ** from [bus terminals](ctrl::BusTerm), and each _node_, i.e. each
- ** [tangible model element](model::Tangible) has a BusTerm member and
+ ** from [bus terminals](\ref ctrl::BusTerm), and each _node_, i.e. each
+ ** [tangible model element](\ref model::Tangible) has a BusTerm member and
  ** thus inherits the ability to talk to the bus. But only when _actively_
  ** connected to the bus, a full link and entry in the routing table is
  ** established. The constructor of model::Tangible indeed makes such
@@ -65,8 +65,8 @@
  ** for the Nexus, and thus gains the ability to respond to those few special
  ** messages, which can not be handled in a generic way on the Nexus:
  ** - *act* handles command invocation within the Session core, and
- **   is treated by [forwarding](command-handler.hpp) it over the
- **   SessionCommand facade to the [Proc-Dispatcher](proc-dispatcher.hpp)
+ **   is treated by [forwarding](\ref command-handler.hpp) it over the
+ **   SessionCommand facade to the [Proc-Dispatcher](\ref proc-dispatcher.hpp)
  ** - *note* observes and captures presentation state note messages, which
  **   are to be handled by a central presentation state manager (TODO 1/17).
  ** 
diff --git a/src/gui/ctrl/nexus.hpp b/src/gui/ctrl/nexus.hpp
index eab41a8ea..205c88dd2 100644
--- a/src/gui/ctrl/nexus.hpp
+++ b/src/gui/ctrl/nexus.hpp
@@ -23,8 +23,8 @@
 
 /** @file nexus.hpp
  ** Core hub and routing table of the UI-Bus.
- ** Any relevant element within the Lumiera GTK UI is connected to the [UI-Bus](ui-bus.hpp)
- ** through some [bus terminal](bus-term.hpp). Actually, there is one special BustTerm
+ ** Any relevant element within the Lumiera GTK UI is connected to the [UI-Bus](\ref ui-bus.hpp)
+ ** through some [bus terminal](\ref bus-term.hpp). Actually, there is one special BustTerm
  ** implementation, which acts as router and messaging hub.
  ** 
  ** @note messages to unknown target elements are silently dropped.
diff --git a/src/gui/interact/view-locator.cpp b/src/gui/interact/view-locator.cpp
index ecfb2e848..350864201 100644
--- a/src/gui/interact/view-locator.cpp
+++ b/src/gui/interact/view-locator.cpp
@@ -23,8 +23,8 @@
 
 /** @file view-locator.cpp
  ** Implementation details of a machinery to allocate UI global component views.
- ** Essentially this compilation unit hosts the implementation backing the [ViewSpec-DSL](view-spec-dsl.hpp)
- ** and the [Location Solver](ui-location-solver.hpp) to drive evaluation of the standard location defaults,
+ ** Essentially this compilation unit hosts the implementation backing the [ViewSpec-DSL](\ref view-spec-dsl.hpp)
+ ** and the [Location Solver](\ref ui-location-solver.hpp) to drive evaluation of the standard location defaults,
  ** which are [hard-wired into the UI](\ref id-scheme.hpp). For this integration of various facilities and
  ** frameworks we rely on actual definitions for the DSL-tokens, which themselves are functors and tied by
  ** lambda-binding into the implementation side of ViewLocator; which both acts as a front-end to access
diff --git a/src/gui/interact/view-spec-dsl.hpp b/src/gui/interact/view-spec-dsl.hpp
index 120be8581..1a0dd6b2e 100644
--- a/src/gui/interact/view-spec-dsl.hpp
+++ b/src/gui/interact/view-spec-dsl.hpp
@@ -84,7 +84,7 @@
  **   This results in calling a dedicated _view allocator_ to create a new view or re-use an existing one
  **   as appropriate.
  ** 
- ** @note the actual binding for the DSL tokens can be found in the [ViewLocator implementation](view-locator.cpp)
+ ** @note the actual binding for the DSL tokens can be found in the [ViewLocator implementation](\ref view-locator.cpp)
  ** 
  ** @see ViewSpecDSL_test
  ** @see id-scheme.hpp
diff --git a/src/gui/model/tangible.cpp b/src/gui/model/tangible.cpp
index dc6e95d39..e81daf3dd 100644
--- a/src/gui/model/tangible.cpp
+++ b/src/gui/model/tangible.cpp
@@ -25,7 +25,7 @@
  ** Common base implementation of all tangible and connected interface elements.
  ** 
  ** @see abstract-tangible-test.cpp
- ** @see [explanation of the fundamental interactions](tangible.hpp)
+ ** @see [explanation of the fundamental interactions](\ref tangible.hpp)
  ** 
  */
 
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index 170d14e62..fb07452a4 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -24,7 +24,7 @@
 /** @file tangible.hpp
  ** Abstraction: a tangible element of the User Interface.
  ** This is a generic foundation for any elements of more than local relevance
- ** within the Lumiera UI.<br/> Any such element is connected to the [UI-Bus](ui-bus.hpp).
+ ** within the Lumiera UI.<br/> Any such element is connected to the [UI-Bus](\ref ui-bus.hpp).
  ** 
  ** ## rationale
  ** 
@@ -96,7 +96,7 @@
  ** 
  ** And finally, there are the _essential updates_ -- any changes in the model _for real._
  ** These are sent as notifications just to some relevant top level element, expecting this element
- ** to request a [diff](tree-diff.hpp) and to mutate contents into shape recursively.
+ ** to request a [diff](\ref tree-diff.hpp) and to mutate contents into shape recursively.
  ** 
  ** ## Interactions
  ** 
@@ -154,9 +154,9 @@ namespace model {
    * Interface common to all UI elements of relevance for the Lumiera application.
    * Any non-local and tangible interface interaction will at some point pass through
    * this foundation element, which forms the joint and attachment to the UI backbone,
-   * which is the [UI-Bus](ui-bus.hpp). Any tangible element acquires a distinct identity
+   * which is the [UI-Bus](\ref ui-bus.hpp). Any tangible element acquires a distinct identity
    * and has to be formed starting from an already existing bus nexus.
-   * @see [explanation of the basic interactions](tangible.hpp)
+   * @see [explanation of the basic interactions](\ref tangible.hpp)
    * @warning Tangible is `NonCopyable` for good reason: the UI-Bus Nexus adds a direct
    *          reference into the routing table, tied to the given Tangible's ID (identity.
    *          Consequently you must not store tangibles in STL containers, since these
diff --git a/src/gui/notification-service.cpp b/src/gui/notification-service.cpp
index f3cdc5032..2862a1fb2 100644
--- a/src/gui/notification-service.cpp
+++ b/src/gui/notification-service.cpp
@@ -273,7 +273,7 @@ namespace gui {
   
   
   /**
-   * When started, NotificationService connects to the [UI-Bus](ui-bus.hpp) via the provided connection.
+   * When started, NotificationService connects to the [UI-Bus](\ref ui-bus.hpp) via the provided connection.
    * This is a simple, unidirectional up-link connection, without actively adding NotificationService
    * into the routing tables in [Nexus]. Yet this simple connection is sufficient to implement this
    * service by talking to other facilities within the UI layer.
diff --git a/src/gui/notification-service.hpp b/src/gui/notification-service.hpp
index 93dd82666..20ea60c9f 100644
--- a/src/gui/notification-service.hpp
+++ b/src/gui/notification-service.hpp
@@ -68,7 +68,7 @@ namespace gui {
    * route calls through this interface.
    * 
    * @note the ctor of this class establishes an "up-link"
-   *       connection to the [UI-Bus](ui-bus.hpp), which
+   *       connection to the [UI-Bus](\ref ui-bus.hpp), which
    *       enables the service implementation to talk to
    *       other facilities within the UI.
    */
diff --git a/src/gui/timeline/header-pane-widget.hpp b/src/gui/timeline/header-pane-widget.hpp
index fdc44d0a0..ef4bf8a29 100644
--- a/src/gui/timeline/header-pane-widget.hpp
+++ b/src/gui/timeline/header-pane-widget.hpp
@@ -33,7 +33,7 @@
  ** The HeaderPaneWidget aggregates those patchbay elements into a nested, collapsable tree
  ** structure in accordance with the nesting of scopes. For the actual layout, it has to collaborate
  ** with the timeline::LayoutManager to work out the space available for each individual track head
- ** and to keep these parts aligned with the tracks in the [timeline body](BodyCanvasWidget).
+ ** and to keep these parts aligned with the tracks in the [timeline body](\ref BodyCanvasWidget).
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
  ** 
diff --git a/src/gui/timeline/layout-manager.hpp b/src/gui/timeline/layout-manager.hpp
index e73d52384..fb13c20f3 100644
--- a/src/gui/timeline/layout-manager.hpp
+++ b/src/gui/timeline/layout-manager.hpp
@@ -57,7 +57,7 @@
  ** 
  ** Whenever the layout of timeline contents has to be (re)established, we trigger a recursive
  ** evaluation pass, which in fact is a tree walk. The layout manager creates a DisplayEvaluation
- ** record, which is passed to the [Element's allocate function](Element::allocate). The element
+ ** record, which is passed to the [Element's allocate function](\ref Element::allocate). The element
  ** in turn has the liability to walks its children and recursively initiate a nested evaluation
  ** by invoking DisplayEvaluation::evaluateChild(Element), which in turn calls back to
  ** LayoutManager::evaluate() to initiate a recursive evaluation pass. Within the recursively
diff --git a/src/gui/timeline/timeline-controller.hpp b/src/gui/timeline/timeline-controller.hpp
index 75cb0f854..23b78b782 100644
--- a/src/gui/timeline/timeline-controller.hpp
+++ b/src/gui/timeline/timeline-controller.hpp
@@ -77,7 +77,7 @@ namespace timeline {
   
   /**
    * Controller to supervise the timeline display.
-   * As a [tangible element](model::Tangible), it is attached to the UI-Bus.
+   * As a [tangible element](\ref model::Tangible), it is attached to the UI-Bus.
    * @todo WIP-WIP-rewrite as of 12/2016
    * @remarks a Timeline always has an attached Sequence, which in turn has
    *     a single mandatory root track. This in turn might hold further child tracks,
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index 1128cf871..f968b3849 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -38,7 +38,7 @@
  ** the [UI-Bus](\ref ui-bus.hpp). So there will be a _parent element,_ corresponding to the
  ** ["model root"](\ref session::Root), and this parent, in response to some mutation message,
  ** will create a TimelineWidget, add it into the appropriate GTK display setup and manage it
- ** as child element; the [construction parameters](TimelineWidget::TimelineWidget] ensure
+ ** as child element; the [construction parameters](\ref TimelineWidget::TimelineWidget] ensure
  ** it gets connected to the bus as well. Incidentally, this assumption also implies that
  ** this parent element has set up a _binding for diff mutation,_ typically by implementing
  ** model::Tangible::buildMutator. And further on this means that the parent will also
diff --git a/src/gui/timeline/track-body.hpp b/src/gui/timeline/track-body.hpp
index 5e271115f..df8479122 100644
--- a/src/gui/timeline/track-body.hpp
+++ b/src/gui/timeline/track-body.hpp
@@ -29,7 +29,7 @@
  ** yet for coordination of a globally consistent timeline layout, each
  ** track display is coordinated by a TrackPresenter, which corresponds
  ** to a session::Fork and directly controls the respective display elements
- ** in the [header pane](timeline::HeaderPaneWidget) and the display of the
+ ** in the [header pane](\ref timeline::HeaderPaneWidget) and the display of the
  ** timeline body, which is actually a canvas for custom drawing.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
diff --git a/src/gui/ui-bus.cpp b/src/gui/ui-bus.cpp
index 999dcedce..d6c3233f7 100644
--- a/src/gui/ui-bus.cpp
+++ b/src/gui/ui-bus.cpp
@@ -25,9 +25,9 @@
 /** @file ui-bus.cpp
  ** Implementation of the UI backbone service for messaging.
  ** Any globally relevant widget or controller within the Lumiera UI
- ** is connected to the [UI-Bus](ui-bus.hpp), which is essentially implemented
+ ** is connected to the [UI-Bus](\ref ui-bus.hpp), which is essentially implemented
  ** within this compilation unit. [Clients](\ref gui::model::Tangible) typically
- ** use the [BusTerm-Interface](bus-term.hpp) to route generic actions and
+ ** use the [BusTerm-Interface](\ref bus-term.hpp) to route generic actions and
  ** receive notifications, state changes and mutations.
  ** 
  ** @see core-service.hpp
@@ -143,7 +143,7 @@ namespace ctrl {
     
     
     /** capture and record a "state mark" for later replay for restoring UI state.
-     * @param subject the [endpoint-ID](BusTerm::endpointID_) of the emitting element
+     * @param subject the [endpoint-ID](\ref BusTerm::endpointID_) of the emitting element
      * @param mark the actual state update or notification message to be remembered
      * @remarks relevant changes to presentation state, which are to be recalled and
      *          restored later, are emitted from the place they occur, packaged as
@@ -162,11 +162,11 @@ namespace ctrl {
     
     
     /** route a state update or notification to the given subject.
-     * @param subject the [endpoint-ID](BusTerm::endpointID_) of the element to address
+     * @param subject the [endpoint-ID](\ref BusTerm::endpointID_) of the element to address
      * @param mark the actual state update or notification message to be delivered
      * @remarks each addressed "subject" is a gui::model::Tangible, and as such holds
      *          a BusTerm of its own, which in turn ensures a registration and connection
-     *          from the [central routing hub](gui::ctrl::Nexus) down to the element. Thus,
+     *          from the [central routing hub](\ref gui::ctrl::Nexus) down to the element. Thus,
      *          the default implementation is just to pass the given state mark "up",
      *          assuming that it will reach the hub eventually, which in turn knows
      *          how to reach the element, and invoke the Tangible::mark() operation.
diff --git a/src/gui/ui-bus.hpp b/src/gui/ui-bus.hpp
index 6455b9cfb..d6788528d 100644
--- a/src/gui/ui-bus.hpp
+++ b/src/gui/ui-bus.hpp
@@ -64,11 +64,11 @@
  ** We distinguish between _up-link messages,_ directed towards some central service
  ** (presentation state management or command invocation) and _down-link messages,_
  ** directed towards individual elements. The interactions at the bus are closely interrelated
- ** with the [elementary UI-Element operations](tangible.hpp).
+ ** with the [elementary UI-Element operations](\ref tangible.hpp).
  ** 
  ** - *act*: send a [GenNode] representing the action
  **   - the ID is either a globally registered command-ID or an explicitly
- **     ["opened"](proc::control::SessionCommand::cycle(Symbol,string)) command instance ID.
+ **     ["opened"](\ref proc::control::SessionCommand::cycle(Symbol,string)) command instance ID.
  **   - the payload is a Record<GenNode> holding the actual command arguments
  **   - on reception, an _instance_ (anonymous clone copy) of the command is created, bound
  **     with the arguments and handed over to the ProcDispatcher to be enqueued for execution.
diff --git a/src/include/display-facade.h b/src/include/display-facade.h
index 270dc6172..82e9e846a 100644
--- a/src/include/display-facade.h
+++ b/src/include/display-facade.h
@@ -33,7 +33,7 @@
  **  by a better design, where rather the \em provider of an output facility
  **  registers with the OutputManager in the core.
  ** 
- ** @see [corresponding implementation](display-service.hpp)
+ ** @see [corresponding implementation](\ref display-service.hpp)
  ** @see gui::GuiFacade
  ** @see dummy-player-facade.h
  ** 
diff --git a/src/include/session-command-facade.h b/src/include/session-command-facade.h
index 5c1205e8d..ce49d9f28 100644
--- a/src/include/session-command-facade.h
+++ b/src/include/session-command-facade.h
@@ -75,7 +75,7 @@ namespace control {
    * 
    * The service exposed through this facade offers dedicated support for
    * the _standard command cycle_, as is typically performed from the UI.
-   * Such a usage cycle starts with ["opening"](#cycle) a local anonymous
+   * Such a usage cycle starts with ["opening"](\ref #cycle) a local anonymous
    * clone copy from the global command definition, which is then used
    * in further calls to be outfitted with actual arguments and finally
    * to be handed over to the dispatcher for execution.
@@ -87,7 +87,7 @@ namespace control {
    * use the embedded #facade factory, which yields a proxy to route any
    * calls through the lumieraorg_SessionCommand interface
    * @throws lumiera::error::State when interface is not opened
-   * @see [Command system](command.hpp)
+   * @see [Command system](\ref command.hpp)
    * @see SessionCommandFunction_test
    */
   class SessionCommand
diff --git a/src/lib/diff/list-diff.hpp b/src/lib/diff/list-diff.hpp
index 45e151e1b..3b90d61cc 100644
--- a/src/lib/diff/list-diff.hpp
+++ b/src/lib/diff/list-diff.hpp
@@ -23,7 +23,7 @@
 
 /** @file list-diff.hpp
  ** A token language to represent changes in a list of elements.
- ** In combination with the [DiffLanguage framework](diff-langue.hpp), this building
+ ** In combination with the [DiffLanguage framework](\ref diff-langue.hpp), this building
  ** block defines the set of operations to express changes in a given list of elements.
  ** By implementing the lib::diff::ListDiffInterpreter interface (visitor), a concrete
  ** usage can receive such a diff description and e.g. apply it to a target data structure.
diff --git a/src/lib/diff/mutation-message.hpp b/src/lib/diff/mutation-message.hpp
index 416bec91b..ff146cdac 100644
--- a/src/lib/diff/mutation-message.hpp
+++ b/src/lib/diff/mutation-message.hpp
@@ -256,7 +256,7 @@ namespace diff{
    * becomes the new generator and the old generator object is released,
    * since the assignment of the new backend typically removes the last
    * reference in the smart-ptr managing the generation backend. This
-   * process can be repeated and then the [diagnostics](operator string())
+   * process can be repeated and then the [diagnostics](\ref operator string())
    * will show the remainder of the sequence _left at that point._
    */
   inline MutationMessage&
diff --git a/src/lib/format-cout.hpp b/src/lib/format-cout.hpp
index 10840e1a1..3b7b65683 100644
--- a/src/lib/format-cout.hpp
+++ b/src/lib/format-cout.hpp
@@ -45,7 +45,7 @@
  ** @see FormatCOUT_test
  ** @see FormatHelper_test
  ** @see [generic string conversion helper](\ref util::toString() )
- ** @see [frontend for boost::format, printf-style](format-string.hpp)
+ ** @see [frontend for boost::format, printf-style](\ref format-string.hpp)
  ** 
  */
 
diff --git a/src/lib/format-obj.cpp b/src/lib/format-obj.cpp
index 9de89b7d4..b7eb0d26a 100644
--- a/src/lib/format-obj.cpp
+++ b/src/lib/format-obj.cpp
@@ -31,7 +31,7 @@
  ** investigate object contents and show types and addresses. They
  ** are referred from our [lightweight string converter](\ref
  ** util::StringConv), but also from the util::toString() function
- ** and more common [formatting utils](format-util.hpp).
+ ** and more common [formatting utils](\ref format-util.hpp).
  ** 
  ** @see FormatHelper_test
  ** @see FormatString_test
diff --git a/src/lib/format-obj.hpp b/src/lib/format-obj.hpp
index 562269e11..a4f7c8a87 100644
--- a/src/lib/format-obj.hpp
+++ b/src/lib/format-obj.hpp
@@ -38,7 +38,7 @@
  **         the way we did it for `boost::format`? This would reduce inclusion cost...
  ** 
  ** @see FormatHelper_test
- ** @see [frontend for boost::format, printf-style](format-string.hpp)
+ ** @see [frontend for boost::format, printf-style](\ref format-string.hpp)
  ** 
  */
 
diff --git a/src/lib/format-util.hpp b/src/lib/format-util.hpp
index eebf22638..3d926e9f5 100644
--- a/src/lib/format-util.hpp
+++ b/src/lib/format-util.hpp
@@ -30,7 +30,7 @@
  **         through our [generic string conversion](\ref util::toString)
  ** 
  ** @see FormatHelper_test
- ** @see [frontend for boost::format, printf-style](format-string.hpp)
+ ** @see [frontend for boost::format, printf-style](\ref format-string.hpp)
  ** 
  */
 
diff --git a/src/lib/iter-chain-search.hpp b/src/lib/iter-chain-search.hpp
index d8913318c..084a24851 100644
--- a/src/lib/iter-chain-search.hpp
+++ b/src/lib/iter-chain-search.hpp
@@ -68,7 +68,7 @@
  ** @see IterChainSearch_test
  ** @see IterCursor_test
  ** @see iter-tree-explorer.hpp
- ** @see [usage example](event-log.hpp)
+ ** @see [usage example](\ref event-log.hpp)
  ** 
  */
 
diff --git a/src/lib/iter-cursor.hpp b/src/lib/iter-cursor.hpp
index 259057956..013ed975e 100644
--- a/src/lib/iter-cursor.hpp
+++ b/src/lib/iter-cursor.hpp
@@ -26,12 +26,12 @@
  ** This wrapper relies on the ability of typical STL container iterators
  ** to work in both directions, similar to std::reverse_iterator.
  ** Yet it is a single, self-contained element and in compliance to the
- ** ["Lumiera Forward Iterator"](iter-adapter.hpp) concept. But it has
+ ** ["Lumiera Forward Iterator"](\ref iter-adapter.hpp) concept. But it has
  ** the additional ability to [switch the working direction](\ref IterCursor<IT>::switchDir).
  ** 
  ** @see IterCursor_test
  ** @see iter-adapter.hpp
- ** @see [usage example](event-log.hpp)
+ ** @see [usage example](\ref event-log.hpp)
  ** 
  */
 
@@ -156,7 +156,7 @@ namespace lib {
    * It can be built on top of any bidirectional STL iterator or similar entity,
    * which has an `--` operator. Initially, IterCursor will operate in forward
    * direction; irrespective of the current direction, it always fulfils the
-   * ["Lumiera Forward Iterator"](iter-adapter.hpp) concept, i.e. it can be
+   * ["Lumiera Forward Iterator"](\ref iter-adapter.hpp) concept, i.e. it can be
    * iterated until exhaustion, in which case it will evaluate to bool(false).
    * @note IterCursor instances can be equality compared, also taking the
    *       current direction into account. As a special case, all
diff --git a/src/lib/meta/trait.hpp b/src/lib/meta/trait.hpp
index d82364655..71b2d249b 100644
--- a/src/lib/meta/trait.hpp
+++ b/src/lib/meta/trait.hpp
@@ -39,10 +39,10 @@
  ** the ability for string conversions
  ** 
  ** \par ability to iterate
- ** these traits [can be used](util-foreach.hpp) to build the notion of a
+ ** these traits [can be used](\ref util-foreach.hpp) to build the notion of a
  ** generic container -- basically anything that can be enumerated.
  ** Within Lumiera, we frequently use our own concept of "iterability",
- ** known as ["Lumiera Forward Iterator"](iter-adapter.hpp). These
+ ** known as ["Lumiera Forward Iterator"](\ref iter-adapter.hpp). These
  ** helpers here allow to unify this concept with the "Range"
  ** concept from the standard library (`begin()` and `end()`)
  ** 
diff --git a/src/lib/meta/util.hpp b/src/lib/meta/util.hpp
index 5df0dad53..6a742c56a 100644
--- a/src/lib/meta/util.hpp
+++ b/src/lib/meta/util.hpp
@@ -334,7 +334,7 @@ namespace util {
    *    representation for pretty much every language object._ This minimal solution
    *    is defined here, to allow for built-in diagnostics for custom types without
    *    the danger of creating much header inclusion and code size bloat. A more
-   *    elaborate, [extended solution](lib::toString), including _lexical conversions
+   *    elaborate, [extended solution](\ref lib::toString), including _lexical conversions
    *    for numbers,_ is defined in format-obj.hpp
    * @note any exceptions during string conversion are caught and silently ignored;
    *    the returned string indicates "↯" in this case.
diff --git a/src/proc/control/command-instance-manager.hpp b/src/proc/control/command-instance-manager.hpp
index 1134d9d1b..7a7f3c478 100644
--- a/src/proc/control/command-instance-manager.hpp
+++ b/src/proc/control/command-instance-manager.hpp
@@ -88,7 +88,7 @@ namespace control {
    * #getInstance. It represents an _anonymous instance_ kept alive solely by the CommandInstanceManager
    * (i.e. there is no registration of a command under that instanceID in the global CommandRegistry).
    * When done with the parametrisation, by calling #dispatch, this anonymous instance will be handed
-   * over to the [Dispatcher](CommandDispatch) (installed on construction). Typically, this will in fact
+   * over to the [Dispatcher](\ref CommandDispatch) (installed on construction). Typically, this will in fact
    * be the proc::control::ProcDispatcher, which runs in a dedicated thread ("session loop thread") and
    * maintains a queue of commands to be dispatched towards the current session. Since Command is a smart
    * handle, the enqueued instance will stay alive until execution and then go out of scope. But, after
diff --git a/src/proc/control/command-setup.cpp b/src/proc/control/command-setup.cpp
index e592325e1..690eec058 100644
--- a/src/proc/control/command-setup.cpp
+++ b/src/proc/control/command-setup.cpp
@@ -295,8 +295,8 @@ namespace control {
    * opened instance, which will then be bound and dispatched likewise.
    * @param instanceID global commandID or previously opened local instanceID
    * @param argSeq command argument tuple packaged as Record<GenNode>, which
-   *               is the standard format [sent](BusTerm::act(GenNode)) for
-   *               command execution via [UI-bus](ui-bus.hpp)
+   *               is the standard format [sent](\ref BusTerm::act(GenNode)) for
+   *               command execution via [UI-bus](\ref ui-bus.hpp)
    */
   void
   CommandInstanceManager::bindAndDispatch (Symbol instanceID, Rec const& argSeq)
diff --git a/src/proc/control/command-setup.hpp b/src/proc/control/command-setup.hpp
index fedcf7871..251d665d9 100644
--- a/src/proc/control/command-setup.hpp
+++ b/src/proc/control/command-setup.hpp
@@ -24,7 +24,7 @@
 /** @file command-setup.hpp
  ** Provision for setup of concrete commands for use by the UI.
  ** A *Proc-Layer command* is a functor, which can be parametrised with actual arguments.
- ** It needs to be [defined](command-def.hpp) beforehand, which means to establish an unique
+ ** It needs to be [defined](\ref command-def.hpp) beforehand, which means to establish an unique
  ** name and to supply three functions, one for the actual command operation, one to capture
  ** state and one to _undo_ the effect of the command invocation. CommandSetup allows to create
  ** series of such definitions with minimal effort. Since any access and mutation from the UI into
diff --git a/src/proc/control/command.hpp b/src/proc/control/command.hpp
index 1a670785a..24b78c54e 100644
--- a/src/proc/control/command.hpp
+++ b/src/proc/control/command.hpp
@@ -37,8 +37,8 @@
  ** stored definition backend.
  ** 
  ** # Command definition, argument types and UNDO operation
- ** For a command to be usable at all, a concrete [command definition](command-def.hpp) need to be supplied
- ** somewhere in the code base. Typically this is done through static [command-setup bindings](command-setup.hpp).
+ ** For a command to be usable at all, a concrete [command definition](\ref command-def.hpp) need to be supplied
+ ** somewhere in the code base. Typically this is done through static [command-setup bindings](\ref command-setup.hpp).
  ** Such a command definition links three functions with the name-ID of the command
  ** - the actual command operation
  ** - a function to capture state
diff --git a/src/proc/control/media-impl-lib.hpp b/src/proc/control/media-impl-lib.hpp
index 08496ca30..d151d4954 100644
--- a/src/proc/control/media-impl-lib.hpp
+++ b/src/proc/control/media-impl-lib.hpp
@@ -24,7 +24,7 @@
 /** @file media-impl-lib.hpp
  ** Abstraction to represent (metadata) of an external library to handle media data
  ** Lumiera delegates most actual media data processing to well established external
- ** libraries. While configuring the render process, a [stream type](streamtype.hpp)
+ ** libraries. While configuring the render process, a [stream type](\ref streamtype.hpp)
  ** framework is used to gain uniform access to heterogeneous media and processing
  ** facilities. At some point, we need to integrate the individual capabilities of
  ** the referenced libraries, though. This will be done with adapter implementations,
diff --git a/src/proc/engine/dispatcher.hpp b/src/proc/engine/dispatcher.hpp
index 2b61ce5af..440037837 100644
--- a/src/proc/engine/dispatcher.hpp
+++ b/src/proc/engine/dispatcher.hpp
@@ -23,7 +23,7 @@
 
 /** @file dispatcher.hpp
  ** Service abstraction within the render engine for generating render jobs.
- ** On interface level, the render engine uses the notion of a [calculation stream](CalcStream)
+ ** On interface level, the render engine uses the notion of a [calculation stream](\ref CalcStream)
  ** to represent an ongoing rendering process. Within the _implementation_ of such a process,
  ** the Dispatcher is responsible for transforming the generic setup of such a calculation stream
  ** into a sequence of concrete jobs, anchored at some distinct point in time.
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 2aa65abd2..087c4b61e 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -197,7 +197,7 @@ namespace test {
        * the occurrence of expected events, invocations and responses.
        * 
        * ### connectivity
-       * Any mock element will automatically connect against the [Test-Nexus](test/test-nexus.hpp),
+       * Any mock element will automatically connect against the [Test-Nexus](\ref test/test-nexus.hpp),
        * so to be suitably rigged for unit testing. This means, there is no _live connection_
        * to the session, but any command- or other messages will be captured and can be
        * retrieved or verified from the test code. Since lifecycle and robustness in
diff --git a/tests/gui/bus-term-test.cpp b/tests/gui/bus-term-test.cpp
index a4a0153f5..1b5b91e28 100644
--- a/tests/gui/bus-term-test.cpp
+++ b/tests/gui/bus-term-test.cpp
@@ -112,7 +112,7 @@ namespace test {
   /**************************************************************************//**
    * @test cover the standard node element (terminal element) within the UI-Bus,
    * with the help of an attached mock UI element. Contrary to the related
-   * [ui-element test](AbstractTangible_test), here we focus on the bus side
+   * [ui-element test](\ref AbstractTangible_test), here we focus on the bus side
    * of the standard interactions.
    * 
    * This test enacts the fundamental generic communication patterns
@@ -150,7 +150,7 @@ namespace test {
       /** @test build a new BusTerm and verify connectivity.
        * Every [tangible UI-element](\ref Tangible) bears an embedded BusTerm
        * member. Since the latter _requires another, up-link BusTerm_ on construction,
-       * connection to the [UI-Bus](ui-bus.hpp) is structurally ensured. Moreover,
+       * connection to the [UI-Bus](\ref ui-bus.hpp) is structurally ensured. Moreover,
        * when hooking up a new UI-element, the initialisation of the embedded BusTerm
        * will cause a down-link connection to be installed into the central routing
        * table within the \ref Nexus, the hub of the UI-Bus. Routing and addressing
diff --git a/tests/gui/model/element-access-test.cpp b/tests/gui/model/element-access-test.cpp
index c87ad38a4..281aa98c5 100644
--- a/tests/gui/model/element-access-test.cpp
+++ b/tests/gui/model/element-access-test.cpp
@@ -79,7 +79,7 @@ namespace test {
    *       rather than on the real UI topology.
    * @see GenNodeLocationQuery
    * 
-   * @see [Mock testing support](test-element-access.hpp)
+   * @see [Mock testing support](\ref test-element-access.hpp)
    * @see id-scheme.hpp
    * @see ViewLocator
    * @see ViewSpecDSL_test
diff --git a/tests/gui/test/mock-elm.hpp b/tests/gui/test/mock-elm.hpp
index 132fe7ddc..82baec4b2 100644
--- a/tests/gui/test/mock-elm.hpp
+++ b/tests/gui/test/mock-elm.hpp
@@ -101,7 +101,7 @@ namespace test{
    * on the [Tangible] interface, which we mock here for unit testing.
    * This special implementation is instrumented to [log](\ref lib::test::EventLog)
    * any invocation and any messages sent or received through the UI Backbone,
-   * which is formed by the [UI-Bus](ui-bus.hpp).
+   * which is formed by the [UI-Bus](\ref ui-bus.hpp).
    * 
    * @todo some usage details
    * @see abstract-tangible-test.cpp
diff --git a/tests/gui/test/test-nexus.cpp b/tests/gui/test/test-nexus.cpp
index 5deb85cda..597cc3cd8 100644
--- a/tests/gui/test/test-nexus.cpp
+++ b/tests/gui/test/test-nexus.cpp
@@ -26,12 +26,12 @@
  ** This compilation unit provides the actual setup for running a faked
  ** user interface from unit tests. Test code is assumed to access those
  ** features through the [front-end](\ref gui::test::TestNexus), while the
- ** actual implementation instances are placed [as singletons](depend.hpp)
+ ** actual implementation instances are placed [as singletons](\ref depend.hpp)
  ** 
- ** This test setup will mostly treat messages similar to the [real UI-Bus hub](nexus.hpp),
+ ** This test setup will mostly treat messages similar to the [real UI-Bus hub](\ref nexus.hpp),
  ** with additional [logging](\ref event-log.hpp). Since the TestNexus runs as singleton,
- ** there is a single shared "nexus-log", which can be [accessed](test::Nexus::getLog) or
- ** even [cleared](test::Nexus::startNewLog) through the [static front-end](test::Nexus).
+ ** there is a single shared "nexus-log", which can be [accessed](\ref test::Nexus::getLog) or
+ ** even [cleared](\ref test::Nexus::startNewLog) through the [static front-end](\ref test::Nexus).
  ** But there is no connection to any [core services](\ref core-service.hpp), so neither
  ** commands nor state marks will be processed in any way. In case the unit tests need to
  ** integrate with or verify these handling operations, we provide the ability to install
@@ -420,7 +420,7 @@ namespace test{
   }
   
   /**
-   * similar to the [custom command handler](Nexus::setCommandHandler)
+   * similar to the [custom command handler](\ref Nexus::setCommandHandler)
    * this hook allows to install a closure to intercept any
    * "state mark" messages passed over the test-UI-Bus
    */
diff --git a/tests/gui/test/test-nexus.hpp b/tests/gui/test/test-nexus.hpp
index 73639ac6f..3cb9c8a15 100644
--- a/tests/gui/test/test-nexus.hpp
+++ b/tests/gui/test/test-nexus.hpp
@@ -23,7 +23,7 @@
 
 /** @file test/test-nexus.hpp
  ** A fake UI backbone for investigations and unit testing.
- ** Any relevant element within the Lumiera GTK UI is connected to the [UI-Bus](ui-bus.hpp)
+ ** Any relevant element within the Lumiera GTK UI is connected to the [UI-Bus](\ref ui-bus.hpp)
  ** So for testing and investigation we need a white room setup to provide an instrumented
  ** backbone to run any test probes against. The test::Nexus allows to [hook up](\ref testUI())
  ** a generic interface element, to participate in a simulated interface interaction.
@@ -64,7 +64,7 @@ namespace test{
   
   /**
    * Mock UI backbone for unit testing.
-   * In the absence of a real UI, this simulated [UI-Bus](ui-bus.hpp)
+   * In the absence of a real UI, this simulated [UI-Bus](\ref ui-bus.hpp)
    * can be used to wire a [test probe](\ref MockElm) and address it in unit testing.
    * 
    * @note behind the scenes, this is a singleton. Use the provided
diff --git a/tests/library/iter-chain-search-test.cpp b/tests/library/iter-chain-search-test.cpp
index e76aa14b8..714af1695 100644
--- a/tests/library/iter-chain-search-test.cpp
+++ b/tests/library/iter-chain-search-test.cpp
@@ -99,7 +99,7 @@ namespace test{
    * 
    * @see iter-chain-search.hpp
    * @see iter-cursor.hpp
-   * @see [usage example](event-log.hpp)
+   * @see [usage example](\ref event-log.hpp)
    */
   class IterChainSearch_test : public Test
     {
diff --git a/tests/library/iter-cursor-test.cpp b/tests/library/iter-cursor-test.cpp
index ef3b19195..b70f514d9 100644
--- a/tests/library/iter-cursor-test.cpp
+++ b/tests/library/iter-cursor-test.cpp
@@ -78,7 +78,7 @@ namespace test{
    *
    * @see iter-cursor.hpp
    * @see iter-adapter.hpp
-   * @see [usage example](event-log.hpp)
+   * @see [usage example](\ref event-log.hpp)
    */
   class IterCursor_test : public Test
     {

From 0be0f77c160dc545b6c68c3beb1b04d2a15e8d88 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 21 Sep 2018 14:38:38 +0200
Subject: [PATCH 104/178] NotificationDisplay: wire up simple message display

---
 src/gui/panel/infobox-panel.cpp      |  2 +-
 src/gui/widget/error-log-display.hpp | 39 ++++++------
 wiki/thinkPad.ichthyo.mm             | 88 +++++++++++++++++++++++-----
 3 files changed, 94 insertions(+), 35 deletions(-)

diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index c17910b73..215689e97 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -117,7 +117,7 @@ namespace panel{
     static uint bangNo{0};
     static _Fmt msgTemplate{"Bang #%d\n"};
     
-    getLog().showMsg(NOTE_WARN, msgTemplate % ++bangNo);
+    getLog().addMsg (msgTemplate % ++bangNo);
   }
   
   
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 7e4d59a7e..01ae3ad54 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -101,33 +101,18 @@ namespace widget {
       model::Revealer reveal;
       
       
-      void
-      showMsg (NotifyLevel severity, string const& text)
-        {
-          //////////////////////////////////////////////////TICKET #1102 : add formatting according to the error level
-          switch (severity) {
-            case NOTE_ERROR:
-                addEntry ("ERROR: "+text);
-              break;
-            case NOTE_WARN:
-                addEntry ("WARN: "+text);
-              break;
-            default:
-                addEntry (text);
-              break;
-          }
-        }
-      
       void
       clearAll()
         {
           UNIMPLEMENTED ("empty buffer and discard all error bookmarks");
         }
       
+      /** just add normal information message to buffer,
+       *  without special markup and without expanding the widget */
       void
       addMsg (string text)
         {
-          UNIMPLEMENTED ("add normal information message to buffer");
+          showMsg (NOTE_INFO, text);
         }
       
       void
@@ -158,6 +143,24 @@ namespace widget {
       
     private:/* ===== Internals ===== */
       
+      void
+      showMsg (NotifyLevel severity, string const& text)
+        {
+          //////////////////////////////////////////////////TICKET #1102 : add formatting according to the error level
+          switch (severity) {
+            case NOTE_ERROR:
+                addEntry ("ERROR: "+text);
+              break;
+            case NOTE_WARN:
+                addEntry ("WARN: "+text);
+              break;
+            default:
+                addEntry (text);
+              break;
+          }
+        }
+      
+      
       Gtk::TextView textLog_;
       
       /** add message entry to the (ever growing) text buffer.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b77d5ef85..e87c25dd7 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -320,8 +320,8 @@
 <node CREATED="1481502335583" ID="ID_1245191241" MODIFIED="1518487921041" TEXT="Felder im GuiRunner sollten noexcept sein">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1484793048273" ID="ID_66499328" MODIFIED="1518487921041" TEXT="verschoben">
-<arrowlink COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-334;0;" ID="Arrow_ID_693735378" STARTARROW="None" STARTINCLINATION="-131;33;"/>
+<node CREATED="1484793048273" ID="ID_66499328" MODIFIED="1537532341697" TEXT="verschoben">
+<arrowlink COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-127;0;" ID="Arrow_ID_693735378" STARTARROW="None" STARTINCLINATION="-99;38;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -329,7 +329,7 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484793113472" ID="ID_221612387" MODIFIED="1518487921042" TEXT="Lebenszyklus nochmal pr&#xfc;fen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1484797253856" ID="ID_226245696" MODIFIED="1518487921042" TEXT="GUI start sauber">
+<node COLOR="#338800" CREATED="1484797253856" FOLDED="true" ID="ID_226245696" MODIFIED="1537532327605" TEXT="GUI start sauber">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1484797307376" ID="ID_842106541" MODIFIED="1518487921042" TEXT="Abfolge">
 <icon BUILTIN="info"/>
@@ -415,7 +415,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1484797584483" FOLDED="true" ID="ID_1316050570" MODIFIED="1533608416104" TEXT="dieser hat Member ">
+<node CREATED="1484797584483" ID="ID_1316050570" MODIFIED="1537532298858" TEXT="dieser hat Member ">
 <node CREATED="1484797623574" ID="ID_1754670675" MODIFIED="1518487921043" TEXT="Nexus"/>
 <node CREATED="1484797620495" ID="ID_1710248767" MODIFIED="1518487921043" TEXT="GuiNotificationService"/>
 </node>
@@ -530,8 +530,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1484793022924" ID="ID_1019455888" MODIFIED="1518487921045" TEXT="neuer Facade-Kontext">
-<linktarget COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-334;0;" ID="Arrow_ID_693735378" SOURCE="ID_66499328" STARTARROW="None" STARTINCLINATION="-131;33;"/>
+<node CREATED="1484793022924" ID="ID_1019455888" MODIFIED="1537532341698" TEXT="neuer Facade-Kontext">
+<linktarget COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-127;0;" ID="Arrow_ID_693735378" SOURCE="ID_66499328" STARTARROW="None" STARTINCLINATION="-99;38;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1501866627055" ID="ID_1521184600" MODIFIED="1518487921045" TEXT="RAII-Stil"/>
 <node CREATED="1501866591164" ID="ID_751026549" MODIFIED="1518487921045" TEXT="&#xf6;ffnet/schlie&#xdf;t die &#xf6;ffentlichen Interfaces"/>
@@ -930,7 +930,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203488690" ID="ID_149796171" MODIFIED="1518487921049" TEXT="Fehlermeldungen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203488690" ID="ID_149796171" MODIFIED="1537532525240" TEXT="Fehlermeldungen">
+<linktarget COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" SOURCE="ID_821848615" STARTARROW="None" STARTINCLINATION="1509;156;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203497529" ID="ID_1933339677" MODIFIED="1531585056392" TEXT="#1102 brauche Fehlerlog-Widget">
 <linktarget COLOR="#5e6d7f" DESTINATION="ID_1933339677" ENDARROW="Default" ENDINCLINATION="201;-32;" ID="Arrow_ID_1887448672" SOURCE="ID_376091136" STARTARROW="None" STARTINCLINATION="-44;52;"/>
@@ -1329,7 +1330,7 @@
 </html></richcontent>
 <icon BUILTIN="help"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531584775498" ID="ID_1901801971" MODIFIED="1531584845023" TEXT="7/2018 notification-Display fehlt noch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531584775498" ID="ID_1901801971" MODIFIED="1537532231352" TEXT="7/2018 notification-Display fehlt noch">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1343,6 +1344,7 @@
     </p>
   </body>
 </html></richcontent>
+<linktarget COLOR="#ed223a" DESTINATION="ID_1901801971" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1609281182" SOURCE="ID_1545300987" STARTARROW="None" STARTINCLINATION="83;-25;"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
@@ -1960,8 +1962,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1534725417504" TEXT="addMsg">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1537533467539" TEXT="addMsg">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1534725420632" TEXT="addError">
 <icon BUILTIN="flag-yellow"/>
@@ -1972,6 +1974,12 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1537531681238" TEXT="addWarning">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1537531692044" TEXT="nur speziell ausgezeichnete Meldung">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1534725674269" TEXT="clearInfoMsg">
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725716254" ID="ID_1648079400" MODIFIED="1534725735604" TEXT="Fehler-Texte beiseite Speichern">
@@ -2071,7 +2079,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1533689031860" ID="ID_657232437" MODIFIED="1533689036552" TEXT="Implementierung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689031860" ID="ID_657232437" MODIFIED="1537532001855" TEXT="Implementierung">
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1533689046050" ID="ID_32330448" MODIFIED="1533689051525" TEXT="ErrorLog-Widget">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2147,7 +2156,7 @@
 <node COLOR="#338800" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1534119951865" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1533689301486" TEXT="Empfangs-Logik im NotificationController">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1537531589557" TEXT="Empfangs-Logik im NotificationHub (Controller)">
 <icon BUILTIN="full-3"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534730011960" TEXT="Einrichtung">
 <icon BUILTIN="pencil"/>
@@ -2473,8 +2482,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1535752377006" TEXT="doRevealYourself()">
-<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1537530994065" TEXT="doRevealYourself()">
+<icon BUILTIN="bell"/>
 <node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1537459860078">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -2498,8 +2507,8 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1534725759894" TEXT="doMsg(text)">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1537533440677" TEXT="doMsg(text)">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1534120202934" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">
 <icon BUILTIN="info"/>
 </node>
@@ -2543,6 +2552,12 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531617621" ID="ID_447071799" MODIFIED="1537531623029" TEXT="doMark()">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531624828" ID="ID_52936917" MODIFIED="1537531653306" TEXT="Spezialbehandlung + Chain, um die Warnungs State-marks abzugreifen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1534725759893" TEXT="doFlash()">
 <icon BUILTIN="pencil"/>
 <node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1534120315751">
@@ -2593,6 +2608,47 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" SOURCE="ID_1984401497" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1537531170346" TEXT="Funktionen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531078757" ID="ID_605735534" MODIFIED="1537531168651" TEXT="Reset">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531084396" ID="ID_648584085" MODIFIED="1537531167834" TEXT="Meldung ausgeben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531543495" ID="ID_1813117782" MODIFIED="1537531558777" TEXT="Warnung anzeigen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531109361" ID="ID_1483169066" MODIFIED="1537531167107" TEXT="Fehler ausgeben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531089012" ID="ID_1427238207" MODIFIED="1537531166466" TEXT="alle Meldungen entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531153739" ID="ID_538123549" MODIFIED="1537531165851" TEXT="Fehler in Meldungen verwandeln">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531160298" ID="ID_1717013245" MODIFIED="1537531165019" TEXT="Flash">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532006073" HGAP="-92" ID="ID_135756255" MODIFIED="1537532592367" TEXT="Neben-Nutzen" VSHIFT="15">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1537532035141" ID="ID_188521578" MODIFIED="1537532581615" TEXT="NotificationService">
+<icon BUILTIN="info"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532041420" ID="ID_1545300987" MODIFIED="1537532577948" TEXT="Implementierung komplettieren">
+<arrowlink COLOR="#ed223a" DESTINATION="ID_1901801971" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1609281182" STARTARROW="None" STARTINCLINATION="83;-25;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532447549" ID="ID_821848615" MODIFIED="1537532579109" TEXT="Fehleranzeige-Funktion">
+<arrowlink COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" STARTARROW="None" STARTINCLINATION="1509;156;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1537532574773" TEXT="dokumentieren und Ticket #1102 schlie&#xdf;en">
+<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>

From 5b14e83ebf726c7d6be1d607c6c837c5417f89da Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 23 Sep 2018 16:20:24 +0200
Subject: [PATCH 105/178] NotificationDisplay: investigate options to organise
 error display markup

...just to decide not to follow-up too much on that topic right now.
As it turns out, GTK seems to be lacking in that respect. I have plotted
some ideas how we could work around that discrepancy in future...

And for this simple DemoGuiRoundtrip, we'll just use direct styling,
but we'll store a table of bookmarks for the error entries, allowing
us to add further features later on top
---
 doc/technical/gui/guiTheme.txt       |   2 +
 src/gui/widget/error-log-display.hpp |  32 +++-
 wiki/thinkPad.ichthyo.mm             | 262 ++++++++++++++++++++++++++-
 3 files changed, 281 insertions(+), 15 deletions(-)

diff --git a/doc/technical/gui/guiTheme.txt b/doc/technical/gui/guiTheme.txt
index 92fb9b3da..f28327e57 100644
--- a/doc/technical/gui/guiTheme.txt
+++ b/doc/technical/gui/guiTheme.txt
@@ -29,6 +29,8 @@ Recommended reading
    and
    https://developer.gnome.org/gtk3/3.4/GtkStyleContext.html#gtkstylecontext-classes[predefined style classes]
    in the GTK-3 reference manual.
+ * there is an https://developer.gnome.org/gtk3/stable/chap-css-overview.html[overview page in the developer manual],
+   and a https://developer.gnome.org/gtk3/stable/chap-css-properties.html[reference of supported properties].
  * to start, look at this http://thegnomejournal.wordpress.com/2011/03/15/styling-gtk-with-css/[introductory text],
    or the more http://worldofgnome.org/making-gtk3-themes-part-1-basics/[hands-on series of articles from world of gnome]
  * this http://forums.fedoraforum.org/showthread.php?t=281568[post from fedora forum] features a conciese description
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 01ae3ad54..16db9d413 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -63,13 +63,15 @@
 //#include "lib/util.hpp"
 
 //#include <memory>
-//#include <vector>
+#include <vector>
 
 
 
 namespace gui  {
 namespace widget {
   
+  using std::vector;
+  
   
   /**
    * @todo WIP-WIP as of 9/2017
@@ -79,11 +81,18 @@ namespace widget {
   class ErrorLogDisplay
     : public Gtk::ScrolledWindow
     {
+      
+      using Mark = Glib::RefPtr<Gtk::TextBuffer::Mark>;
+      
+      vector<Mark> errorMarks_;
+      Gtk::TextView textLog_;
+
     public:
      ~ErrorLogDisplay() { };
       
       ErrorLogDisplay()
         : Gtk::ScrolledWindow()
+        , errorMarks_{}
         , textLog_{}
         {
           set_size_request (200, 80);           // must be > 50 for the scrollbar to work properly
@@ -115,10 +124,17 @@ namespace widget {
           showMsg (NOTE_INFO, text);
         }
       
+      /** present an error notification prominently.
+       *  Adds the error text, formatted accordingly to stand out,
+       *  but also stores a [Mark] to bookmark the presence of this
+       *  error entry. And finally expand the display if collapsed.
+       *  
+       * [Mark]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
+       */
       void
       addError (string text)
         {
-          UNIMPLEMENTED ("add error with special tag and bookmark");
+          showMsg (NOTE_ERROR, text);
         }
       
       void
@@ -161,13 +177,15 @@ namespace widget {
         }
       
       
-      Gtk::TextView textLog_;
-      
       /** add message entry to the (ever growing) text buffer.
-       * @remark According to the Gtkmm tutorial, TextView::scroll_to(iter) is not reliable;
+       * @remark According to the [GTKmm tutorial], `TextView::scroll_to(iter)` is not reliable;
        *         rather we need to use a text mark and set that text mark to the insert position.
-       *         Actually, there is always one predefined text mark called "insert", which corresponds
-       *         to the text cursor. Thus it suffices to navigate to text end, insert and scroll into view.
+       *         Actually, there is always one predefined text mark [called "insert"][insert-mark],
+       *         which corresponds to the text cursor. Thus it suffices to navigate to text end,
+       *         insert and scroll into view.
+       * 
+       * [GTKmm tutorial]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
+       * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
        */
       void
       addEntry (string const& text)
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e87c25dd7..0af493d80 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1718,7 +1718,7 @@
 <node CREATED="1504215958961" ID="ID_55797578" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-formatting" MODIFIED="1518487921054" TEXT="Formattierung">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1534512772398" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
+<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1537661820926" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
 <arrowlink COLOR="#9bbabd" DESTINATION="ID_429138159" ENDARROW="Default" ENDINCLINATION="-1413;0;" ID="Arrow_ID_1025095859" STARTARROW="None" STARTINCLINATION="-1151;202;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1504220139416" ID="ID_1997485219" MODIFIED="1518487921054" TEXT="scroll_to(iterator) funktioniert nicht">
@@ -1740,7 +1740,8 @@
 <node CREATED="1504203763606" ID="ID_877984616" MODIFIED="1518487921054" TEXT="in ein Widget verpacken">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1533402997076" TEXT="Fehler-Level erkennen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1537572046781" TEXT="Fehler-Level erkennen">
+<arrowlink DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1535752292770" TEXT="Operationen">
@@ -1776,7 +1777,7 @@
 <node CREATED="1535563317214" ID="ID_201611533" MODIFIED="1535563330839" TEXT="egal in welcher Reihenfolge man es hinzuf&#xfc;gt"/>
 <node CREATED="1535563334050" ID="ID_718726647" MODIFIED="1535563366331" TEXT="dagegen direkt im Frame dehnt sie sich aus"/>
 </node>
-<node COLOR="#338800" CREATED="1535629564615" ID="ID_228360739" MODIFIED="1535630629855" TEXT="L&#xf6;sung: Widget::property_expand()">
+<node COLOR="#338800" CREATED="1535629564615" ID="ID_228360739" MODIFIED="1537576458081" TEXT="L&#xf6;sung: Widget::property_expand()">
 <arrowlink COLOR="#6277b2" DESTINATION="ID_860094095" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_761942436" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <icon BUILTIN="info"/>
 </node>
@@ -1967,11 +1968,107 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1534725420632" TEXT="addError">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1534725491846" TEXT="spezieller Markup">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1537572046781" TEXT="spezieller Markup">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" SOURCE="ID_580465154" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1537571965556" TEXT="Tags anlegen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1537571926822" TEXT="k&#xe4;ren: CSS?">
+<icon BUILTIN="help"/>
+<node COLOR="#435e98" CREATED="1535629564615" HGAP="43" ID="ID_1432671260" MODIFIED="1537576577055" TEXT="GTK-Styling, CSS f&#xfc;r Custom-Widgets" VSHIFT="-35">
+<arrowlink COLOR="#6277b2" DESTINATION="ID_1174884362" ENDARROW="Default" ENDINCLINATION="-2315;-45;" ID="Arrow_ID_380937946" STARTARROW="None" STARTINCLINATION="-7413;0;"/>
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1537661752104" ID="ID_373027917" MODIFIED="1537661763482" TEXT="wohl nicht so einfach"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1537661786205" TEXT="Untersuchen per Inspector">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1537661797859" TEXT="vorl&#xe4;ufig hart verdrahten">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1537661906780" TEXT="Style-Manager vorsehen">
+<arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1537571967923" TEXT="Tag f&#xfc;r Warnung">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1537571967219" TEXT="Tag f&#xfc;r Fehler">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1537571962861" TEXT="Tags zuweisen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1537571961484" TEXT="Tags entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1534725506867" TEXT="Bookmark speichern">
 <icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1537571978137" TEXT="Technologie">
+<icon BUILTIN="info"/>
+<node CREATED="1537535925874" ID="ID_196796680" MODIFIED="1537535937395" TEXT="Tag / TagTable">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1537535939265" ID="ID_1176049085" MODIFIED="1537535942940" TEXT="geht nicht"/>
+<node CREATED="1537535943840" ID="ID_694044876" MODIFIED="1537535949979" TEXT="man kann nicht nach Tags suchen"/>
+<node CREATED="1537536772568" ID="ID_332685872" MODIFIED="1537536780459" TEXT="(Suchen kann man auf dem Iterator)"/>
+</node>
+<node CREATED="1537536783583" ID="ID_883754303" MODIFIED="1537536847824" TEXT="Mark verwenden">
+<icon BUILTIN="forward"/>
+<node CREATED="1537536791477" ID="ID_1332288045" MODIFIED="1537536806687" TEXT="mu&#xdf; Index daf&#xfc;r selber pflegen"/>
+<node CREATED="1537536808627" ID="ID_609351839" MODIFIED="1537536816686" TEXT="kann dann direkt zur Mark springen"/>
+<node CREATED="1537536819657" ID="ID_1987418184" MODIFIED="1537536840621" TEXT="wird durch Edits/Insterts nicht gest&#xf6;rt">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571771685" ID="ID_1198199438" MODIFIED="1537571817032" TEXT="ErrorIndex">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1537571888654" TEXT="einf&#xfc;gen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1537571889438" TEXT="reorganisieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node CREATED="1537537333987" ID="ID_667263409" MODIFIED="1537537337615" TEXT="&#xdc;bersicht">
+<node CREATED="1537537339011" ID="ID_1759202815" MODIFIED="1537537343849" TEXT="L&#xf6;sung">
+<icon BUILTIN="help"/>
+<node CREATED="1537537345410" ID="ID_1560200040" MODIFIED="1537537351912" TEXT="Toolbar verwenden?">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1537537353105" ID="ID_409330854" MODIFIED="1537537361078" TEXT="ButtonBox verwenden?">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1537571223088" ID="ID_1186576760" MODIFIED="1537571237818" TEXT="erst mal gar nicht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      YAGNI
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="stop-sign"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571240500" ID="ID_1601115005" MODIFIED="1537572170448" TEXT="nur &gt;&gt; (n&#xe4;chster Fehler)">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1537571669683" ID="ID_196982892" MODIFIED="1537571676509" TEXT="wenn es Fehler gibt"/>
+<node CREATED="1537571681249" ID="ID_1273769655" MODIFIED="1537571717760" TEXT="wenn es mehr Zeilen gibt"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572133580" ID="ID_671753441" MODIFIED="1537572167345" TEXT="Button: clear Errors">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572142139" ID="ID_1644572130" MODIFIED="1537572166537" TEXT="Button: clear all">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1537531681238" TEXT="addWarning">
@@ -3921,7 +4018,75 @@
 </node>
 </node>
 <node CREATED="1534336252375" HGAP="27" ID="ID_1755017021" MODIFIED="1534336284856" TEXT="Hilfsmittel">
-<node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine"/>
+<node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine">
+<node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1537659720796" TEXT="primary widgets">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b>Definition</b>: komplexe Widget-Strukturen,
+    </p>
+    <p>
+      welche nur einmal in dieser speziellen Konfiguration exisiteren,
+    </p>
+    <p>
+      und dabei eine zentrale Rolle im UI spielen.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      <u>Beispiel</u>:
+    </p>
+    <ul>
+      <li>
+        Timeline
+      </li>
+      <li>
+        Property-Grid
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1537659869395" TEXT="Timeline"/>
+<node CREATED="1537659870415" ID="ID_1181375258" MODIFIED="1537659875274" TEXT="Property-Grid"/>
+</node>
+<node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1537659851138" TEXT="building blocks">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b>Definition</b>: speziell konfigurierte und verdrahtete Teil-Komponenten,
+    </p>
+    <p>
+      welche wiederholt an verschiedensten Stellen im UI eingesetzt werden,
+    </p>
+    <p>
+      und sich dort jeweils konsistent und uniform verhalten.
+    </p>
+    <p>
+      <u>Beispiel</u>:
+    </p>
+    <ul>
+      <li>
+        Timecode-Widget
+      </li>
+      <li>
+        Placement-Widget
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
+<node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
+</node>
+</node>
 <node CREATED="1534336325916" ID="ID_762624766" MODIFIED="1534336335351" TEXT="Bindeglieder"/>
 <node CREATED="1534336335963" ID="ID_1176525116" MODIFIED="1534336338575" TEXT="Werkzeug">
 <node COLOR="#338800" CREATED="1534334810537" FOLDED="true" ID="ID_1326202399" MODIFIED="1534436661859" TEXT="Link zum Widget">
@@ -3993,6 +4158,21 @@
 </node>
 </node>
 </node>
+<node CREATED="1537659082073" ID="ID_986070389" MODIFIED="1537659084869" TEXT="Schema">
+<node CREATED="1537659311850" ID="ID_741254991" MODIFIED="1537659315213" TEXT="Struktur"/>
+<node CREATED="1537659316321" ID="ID_1046162234" MODIFIED="1537659319957" TEXT="Style">
+<node CREATED="1537660235757" ID="ID_1679504678" MODIFIED="1537660239288" TEXT="Leitlinie">
+<node CREATED="1537660241420" ID="ID_1559839657" MODIFIED="1537660263453" TEXT="m&#xf6;glichst generisch belassen"/>
+<node CREATED="1537660355669" ID="ID_407535546" MODIFIED="1537661906780" TEXT="zentrale Palette f&#xfc;r Extra-Auszeichnungen">
+<linktarget COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" SOURCE="ID_758790930" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
+<node CREATED="1537661251763" ID="ID_896084387" MODIFIED="1537661266549" TEXT="virtuelle Widget-Struktur"/>
+<node CREATED="1537661267561" ID="ID_1282505273" MODIFIED="1537661278347" TEXT="systematisch organisiert"/>
+<node CREATED="1537661279344" ID="ID_635630811" MODIFIED="1537661322302" TEXT="wird bei Bedarf abgefragt"/>
+<node CREATED="1537661322914" ID="ID_165076190" MODIFIED="1537661331868" TEXT="per synthetisiertem Widget-Path"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1485126385235" HGAP="38" ID="ID_548720270" MODIFIED="1518487921059" TEXT="top-Level" VSHIFT="11">
 <linktarget COLOR="#851358" DESTINATION="ID_548720270" ENDARROW="Default" ENDINCLINATION="-663;-614;" ID="Arrow_ID_325703166" SOURCE="ID_471609909" STARTARROW="None" STARTINCLINATION="1110;608;"/>
@@ -36779,12 +36959,14 @@
 <node CREATED="1535629144783" ID="ID_603397185" MODIFIED="1535629149074" TEXT="Phasen">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629169164" ID="ID_1301809885" MODIFIED="1535629197406" TEXT="realized">
 <icon BUILTIN="help"/>
+<node CREATED="1537577511892" ID="ID_194223971" MODIFIED="1537577519599" TEXT="wird sichtbar"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629172787" ID="ID_1666976097" MODIFIED="1535629187584" TEXT="mapped">
 <icon BUILTIN="help"/>
+<node CREATED="1537577522482" ID="ID_629476344" MODIFIED="1537577533836" TEXT="einem GDK-Fenster mit Koordinaten zugeordnet"/>
 </node>
 </node>
-<node CREATED="1535629240762" ID="ID_860094095" MODIFIED="1535630624000" STYLE="fork" TEXT="Platzierung">
+<node CREATED="1535629240762" ID="ID_860094095" MODIFIED="1537576497171" STYLE="fork" TEXT="Platzierung">
 <edge COLOR="#b4a9e3" STYLE="bezier" WIDTH="thin"/>
 <linktarget COLOR="#6277b2" DESTINATION="ID_860094095" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_761942436" SOURCE="ID_228360739" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <font NAME="SansSerif" SIZE="12"/>
@@ -36822,6 +37004,69 @@
 </node>
 </node>
 </node>
+<node CREATED="1537575934664" ID="ID_849901633" MODIFIED="1537575940352" TEXT="Style">
+<font NAME="SansSerif" SIZE="13"/>
+<node CREATED="1537575947102" ID="ID_161652920" MODIFIED="1537575954753" TEXT="StyleContext">
+<node CREATED="1537575960276" ID="ID_376188043" MODIFIED="1537575972287" TEXT="enth&#xe4;lt mehrere StyleProvider"/>
+</node>
+<node CREATED="1537575973946" ID="ID_1131360657" MODIFIED="1537575979062" TEXT="StyleProvider">
+<node CREATED="1537575987001" ID="ID_1223531940" MODIFIED="1537575993275" TEXT="GtkCssStyleProvider">
+<node CREATED="1537576001423" ID="ID_707384345" MODIFIED="1537576009577" TEXT="interpretiert ein CSS-Stylesheet"/>
+</node>
+</node>
+<node CREATED="1537576031611" ID="ID_1494464724" MODIFIED="1537576034622" TEXT="Widgets">
+<node CREATED="1537576035498" ID="ID_1813123190" MODIFIED="1537576058691" TEXT="definieren jeweils die Styles, die sie verwenden">
+<node CREATED="1537577874195" ID="ID_385552696" MODIFIED="1537577883741" TEXT="style-context zum Widget beziehen"/>
+<node CREATED="1537577885042" ID="ID_9820896" MODIFIED="1537577900187" TEXT="diesem Context die spezielle Klasse hinzuf&#xfc;gen"/>
+<node CREATED="1537577901032" ID="ID_1836919045" MODIFIED="1537577913426" TEXT="diese Klasse kann nun im CSS-Selektor verwendet werden"/>
+<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1537577928192" TEXT="geht das auch via GTKmm">
+<icon BUILTIN="help"/>
+<node CREATED="1537577929540" ID="ID_644837001" MODIFIED="1537577942529" TEXT="diverse Hinweise, da&#xdf; es nur direkt in C geht">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node COLOR="#803457" CREATED="1537577957752" ID="ID_36168340" LINK="https://stackoverflow.com/questions/37609381/how-to-set-a-specific-css-class-to-a-widget-in-gtk3-c" MODIFIED="1537658796933" TEXT="C-Beispiel auf Stackoverflow">
+<linktarget COLOR="#c1a9a9" DESTINATION="ID_36168340" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_843556021" SOURCE="ID_903275997" STARTARROW="None" STARTINCLINATION="68;8;"/>
+</node>
+</node>
+</node>
+<node CREATED="1537576059351" ID="ID_1816365537" MODIFIED="1537576067986" TEXT="k&#xf6;nnen spezielle &quot;Regions&quot; haben">
+<node CREATED="1537576068734" ID="ID_1594476628" MODIFIED="1537576071650" TEXT="was ist das">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1537658489614" ID="ID_1012337146" MODIFIED="1537658527703" TEXT="Doku gibt einen Baum an: &quot;CSS nodes&quot;"/>
+<node CREATED="1537658542249" ID="ID_956543325" MODIFIED="1537658554859" TEXT="das ist die tats&#xe4;chliche Widget-Struktur"/>
+</node>
+<node CREATED="1535629240762" ID="ID_1174884362" MODIFIED="1537576577055" STYLE="fork" TEXT="CustomWidgets">
+<edge COLOR="#b4a9e3" STYLE="bezier" WIDTH="thin"/>
+<linktarget COLOR="#6277b2" DESTINATION="ID_1174884362" ENDARROW="Default" ENDINCLINATION="-2315;-45;" ID="Arrow_ID_380937946" SOURCE="ID_1432671260" STARTARROW="None" STARTINCLINATION="-7413;0;"/>
+<font NAME="SansSerif" SIZE="12"/>
+<node CREATED="1537576079756" HGAP="32" ID="ID_111059124" MODIFIED="1537658672181" TEXT="siehe Tutorial" VSHIFT="-6">
+<arrowlink DESTINATION="ID_334736261" ENDARROW="Default" ENDINCLINATION="228;-492;" ID="Arrow_ID_84377619" STARTARROW="None" STARTINCLINATION="930;-42;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#990000" CREATED="1537658616952" HGAP="24" ID="ID_940676428" LINK="https://stackoverflow.com/questions/52452878/can-tags-in-gtktextbuffer-be-styled-with-css" MODIFIED="1537658665006" TEXT="habe selber auf Stackoverflow gefragt..." VSHIFT="-8">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1537658818388" ID="ID_1554071957" MODIFIED="1537658827087" TEXT="M&#xf6;glichkeiten">
+<node CREATED="1537577389028" ID="ID_1690083237" MODIFIED="1537577400334" TEXT="k&#xf6;nnen einen eigenen Widget-Namen setzen"/>
+<node CREATED="1537577364840" ID="ID_927285198" MODIFIED="1537577379929" TEXT="k&#xf6;nnen custom-Properties haben">
+<node CREATED="1537577410065" ID="ID_1611025546" MODIFIED="1537577422244" TEXT="das ist ein Proxy-Member"/>
+<node CREATED="1537577424000" ID="ID_742914876" MODIFIED="1537577434658" TEXT="onRealize kann der Wert abgeholt werden"/>
+</node>
+<node CREATED="1537658737815" ID="ID_1865147889" MODIFIED="1537658764823" TEXT="k&#xf6;nnen Basis-Widgets mit Klasse auszeichnen">
+<node CREATED="1537658770555" ID="ID_920908371" MODIFIED="1537658777916" TEXT="nicht klar, ob das in C++ geht">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1537658785336" ID="ID_903275997" MODIFIED="1537658802879" TEXT="Beispiel">
+<arrowlink COLOR="#c1a9a9" DESTINATION="ID_36168340" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_843556021" STARTARROW="None" STARTINCLINATION="68;8;"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1535632661385" ID="ID_1021079796" MODIFIED="1535632664916" TEXT="Hierarchie">
 <node CREATED="1535632673655" ID="ID_849385989" MODIFIED="1535632684721" TEXT="Gdk::Window">
 <node CREATED="1535632686045" ID="ID_20909674" MODIFIED="1535632722095">
@@ -37591,7 +37836,7 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1385929770" ENDARROW="Default" ENDINCLINATION="1055;0;" ID="Arrow_ID_1314305180" SOURCE="ID_426069181" STARTARROW="None" STARTINCLINATION="1055;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1518487921100" TEXT="custom style properties">
+<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1537576124396" TEXT="custom style properties">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -37605,6 +37850,7 @@
     </p>
   </body>
 </html></richcontent>
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_334736261" ENDARROW="Default" ENDINCLINATION="228;-492;" ID="Arrow_ID_84377619" SOURCE="ID_111059124" STARTARROW="None" STARTINCLINATION="930;-42;"/>
 <icon BUILTIN="info"/>
 </node>
 </node>
@@ -37987,7 +38233,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1504215825762" ID="ID_429138159" MODIFIED="1534512772399" TEXT="zur letzten Zeile scrollen">
+<node CREATED="1504215825762" ID="ID_429138159" MODIFIED="1537661820926" TEXT="zur letzten Zeile scrollen">
 <linktarget COLOR="#9bbabd" DESTINATION="ID_429138159" ENDARROW="Default" ENDINCLINATION="-1413;0;" ID="Arrow_ID_1025095859" SOURCE="ID_653669269" STARTARROW="None" STARTINCLINATION="-1151;202;"/>
 <node CREATED="1504220167228" ID="ID_622474093" MODIFIED="1518487921101" TEXT="scroll_to(iterator) ist ungenau">
 <icon BUILTIN="broken-line"/>

From fa55ff63d591153a95a76ee0438f72cb37dc22e9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 24 Sep 2018 03:30:42 +0200
Subject: [PATCH 106/178] NotificationDisplay: investigate ways to define the
 markup tag(s)

...with the option to expand this approach later to use a central StyleManager (#1169)
---
 src/gui/widget/error-log-display.hpp | 65 +++++++++++++++++++---------
 wiki/thinkPad.ichthyo.mm             | 16 +++++--
 2 files changed, 57 insertions(+), 24 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 16db9d413..d65127c44 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -59,7 +59,7 @@
 #include "gui/gtk-base.hpp"
 #include "gui/model/expander-revealer.hpp"
 #include "include/gui-notification-facade.h"
-
+#include "lib/symbol.hpp"
 //#include "lib/util.hpp"
 
 //#include <memory>
@@ -70,8 +70,30 @@
 namespace gui  {
 namespace widget {
   
+  using lib::Literal;
   using std::vector;
   
+  namespace {
+    
+    const Literal TAG_ERROR{"ERROR"};           /////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
+    
+    
+    using Tag = Glib::RefPtr<Gtk::TextBuffer::Tag>;
+    
+    /**
+     * @internal inject some generic standard styles for use in `TextView` components.
+     * @param tagTable reference to a `TagTable` bound with an existing `Gtk::TextBuffer`.
+     * @todo 9/2018 dummy placeholder code, later to be transformed into a framework    /////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
+     */
+    inline void
+    populateStandardTextTags (Glib::RefPtr<TextBuffer::TagTable> tagTable)
+    {
+      Tag errorTag = Gtk::TextBuffer::Tag::create();
+      errorTag->property_background() = "yellow";                ////////////////////////////////////////////TICKET #1168 : should be retrieved from a central location
+      tagTable->add (errorTag);
+    }
+  }
+  
   
   /**
    * @todo WIP-WIP as of 9/2017
@@ -104,6 +126,8 @@ namespace widget {
           set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_ALWAYS);
           this->add (textLog_);
           textLog_.set_editable (false);
+          
+          populateStandardTextTags (textLog_.get_buffer()->get_tag_table());
         }
       
       model::Expander expand;
@@ -159,24 +183,6 @@ namespace widget {
       
     private:/* ===== Internals ===== */
       
-      void
-      showMsg (NotifyLevel severity, string const& text)
-        {
-          //////////////////////////////////////////////////TICKET #1102 : add formatting according to the error level
-          switch (severity) {
-            case NOTE_ERROR:
-                addEntry ("ERROR: "+text);
-              break;
-            case NOTE_WARN:
-                addEntry ("WARN: "+text);
-              break;
-            default:
-                addEntry (text);
-              break;
-          }
-        }
-      
-      
       /** add message entry to the (ever growing) text buffer.
        * @remark According to the [GTKmm tutorial], `TextView::scroll_to(iter)` is not reliable;
        *         rather we need to use a text mark and set that text mark to the insert position.
@@ -187,7 +193,7 @@ namespace widget {
        * [GTKmm tutorial]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
        * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
        */
-      void
+      auto
       addEntry (string const& text)
         {
           auto buff = textLog_.get_buffer();
@@ -195,6 +201,25 @@ namespace widget {
           buff->move_mark (cursor, buff->end());
           buff->insert (buff->end(), text);
           textLog_.scroll_to (cursor);
+          return cursor;
+        }
+      
+      void
+      showMsg (NotifyLevel severity, string const& text)
+        {
+          //////////////////////////////////////////////////TICKET #1102 : add formatting according to the error level
+          switch (severity) {
+            case NOTE_ERROR:
+                errorMarks_.emplace_back(
+                    addEntry ("ERROR: "+text));
+              break;
+            case NOTE_WARN:
+                addEntry ("WARN: "+text);
+              break;
+            default:
+                addEntry (text);
+              break;
+          }
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0af493d80..e986eb983 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1985,17 +1985,24 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1537661797859" TEXT="vorl&#xe4;ufig hart verdrahten">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1537752420235" ID="ID_922959985" MODIFIED="1537752432342" TEXT="Funktion zum Populieren der Tag-Table"/>
+<node CREATED="1537752434280" ID="ID_1053927695" MODIFIED="1537752468330" TEXT="k&#xf6;nnte in den StyleManager wandern">
+<arrowlink COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" STARTARROW="None" STARTINCLINATION="-17;39;"/>
+<icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1537661906780" TEXT="Style-Manager vorsehen">
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1537752455019" TEXT="Style-Manager vorsehen">
 <arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
+<linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
+<linktarget COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" SOURCE="ID_1053927695" STARTARROW="None" STARTINCLINATION="-17;39;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1537571967923" TEXT="Tag f&#xfc;r Warnung">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1537571967219" TEXT="Tag f&#xfc;r Fehler">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1537752476750" TEXT="Tag f&#xfc;r Fehler">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1537571962861" TEXT="Tags zuweisen">
@@ -2102,7 +2109,8 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1534725298760" TEXT="farbigen Rahmen">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1534725377925" TEXT="vorl&#xe4;ufig feste Farbe">
+<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1537752365219" TEXT="vorl&#xe4;ufig feste Farbe">
+<arrowlink COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>

From 245a07bc16da1f33aae226bf6fb945e91fd28e55 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 24 Sep 2018 04:17:04 +0200
Subject: [PATCH 107/178] NotificationDisplay: integrate for warning and error
 display

Surprise, surprise.... it really works
our "bang" messages are fantastic, yellow and bold now
---
 src/gui/panel/infobox-panel.cpp      |  2 +-
 src/gui/widget/error-log-display.hpp | 26 ++++++++---
 wiki/thinkPad.ichthyo.mm             | 69 ++++++++++++++++++----------
 3 files changed, 65 insertions(+), 32 deletions(-)

diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 215689e97..3d9668ace 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -117,7 +117,7 @@ namespace panel{
     static uint bangNo{0};
     static _Fmt msgTemplate{"Bang #%d\n"};
     
-    getLog().addMsg (msgTemplate % ++bangNo);
+    getLog().addError (msgTemplate % ++bangNo);
   }
   
   
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index d65127c44..51c83665f 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -49,6 +49,9 @@
  ** 
  ** @todo WIP-WIP-WIP as of 9/2017 this is a first draft of a widget to be
  **       used as receiver by the GuiNotificationService.
+ ** @todo WIP-WIP and in 9/2018 this draft gradually shifts towards a prototype
+ **       how to deal with custom configured widget behaviour, and how to integrate
+ **       with our GUI framework                /////////////////////////////////////////////////////////////TICKET #1099 : build a prototype/dummy for UI <-> Proc integration  
  ** 
  */
 
@@ -76,6 +79,7 @@ namespace widget {
   namespace {
     
     const Literal TAG_ERROR{"ERROR"};           /////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
+    const Literal TAG_WARN{"WARN"};
     
     
     using Tag = Glib::RefPtr<Gtk::TextBuffer::Tag>;
@@ -88,9 +92,14 @@ namespace widget {
     inline void
     populateStandardTextTags (Glib::RefPtr<TextBuffer::TagTable> tagTable)
     {
-      Tag errorTag = Gtk::TextBuffer::Tag::create();
-      errorTag->property_background() = "yellow";                ////////////////////////////////////////////TICKET #1168 : should be retrieved from a central location
+      Tag errorTag = Gtk::TextBuffer::Tag::create (cuString{TAG_ERROR});
+      errorTag->property_background() = "Yellow";                ////////////////////////////////////////////TICKET #1168 : should be retrieved from a central location
+      errorTag->property_weight() = PANGO_WEIGHT_BOLD;
       tagTable->add (errorTag);
+      
+      Tag warnTag = Gtk::TextBuffer::Tag::create (cuString{TAG_WARN});
+      warnTag->property_background() = "LightYellow";            ////////////////////////////////////////////TICKET #1168 : should be retrieved from a central location
+      tagTable->add (warnTag);
     }
   }
   
@@ -194,12 +203,15 @@ namespace widget {
        * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
        */
       auto
-      addEntry (string const& text)
+      addEntry (string const& text, Literal markupTagName =nullptr)
         {
           auto buff = textLog_.get_buffer();
           auto cursor = buff->get_insert();
           buff->move_mark (cursor, buff->end());
-          buff->insert (buff->end(), text);
+          if (markupTagName)
+            buff->insert_with_tag(buff->end(), text, cuString{markupTagName});
+          else
+            buff->insert (buff->end(), text);
           textLog_.scroll_to (cursor);
           return cursor;
         }
@@ -211,10 +223,12 @@ namespace widget {
           switch (severity) {
             case NOTE_ERROR:
                 errorMarks_.emplace_back(
-                    addEntry ("ERROR: "+text));
+                    addEntry ("ERROR: "+text, TAG_ERROR));
+                if (not expand.isExpanded())
+                  expand (true);
               break;
             case NOTE_WARN:
-                addEntry ("WARN: "+text);
+                addEntry ("WARN: "+text, TAG_WARN);
               break;
             default:
                 addEntry (text);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e986eb983..a0f6e7d0b 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1740,10 +1740,27 @@
 <node CREATED="1504203763606" ID="ID_877984616" MODIFIED="1518487921054" TEXT="in ein Widget verpacken">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1537572046781" TEXT="Fehler-Level erkennen">
+<node COLOR="#338800" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1537754756867" TEXT="Fehler-Level erkennen">
 <arrowlink DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" STARTARROW="None" STARTINCLINATION="225;0;"/>
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537754684692" HGAP="65" ID="ID_494305022" MODIFIED="1537754798372" TEXT="Rolle im API kl&#xe4;ren" VSHIFT="-12">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      brauchen wir diese zwischengeschaltete Methode <b>showMsg()</b>?
+    </p>
+    <p>
+      w&#228;re es nicht sinnvoller, sie direkt auf das API zu heben?
+    </p>
+  </body>
+</html>
+</richcontent>
 <icon BUILTIN="flag-yellow"/>
 </node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1535752292770" TEXT="Operationen">
 <icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1535752255561" TEXT="expand">
@@ -1966,13 +1983,13 @@
 <node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1537533467539" TEXT="addMsg">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1534725420632" TEXT="addError">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1537754649532" TEXT="addError">
+<icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1537572046781" TEXT="spezieller Markup">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" SOURCE="ID_580465154" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1537571965556" TEXT="Tags anlegen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1537754555384" TEXT="Tags anlegen">
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1537571926822" TEXT="k&#xe4;ren: CSS?">
 <icon BUILTIN="help"/>
 <node COLOR="#435e98" CREATED="1535629564615" HGAP="43" ID="ID_1432671260" MODIFIED="1537576577055" TEXT="GTK-Styling, CSS f&#xfc;r Custom-Widgets" VSHIFT="-35">
@@ -1983,8 +2000,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1537661786205" TEXT="Untersuchen per Inspector">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1537661797859" TEXT="vorl&#xe4;ufig hart verdrahten">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1537754544278" TEXT="vorl&#xe4;ufig hart verdrahten">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537752420235" ID="ID_922959985" MODIFIED="1537752432342" TEXT="Funktion zum Populieren der Tag-Table"/>
 <node CREATED="1537752434280" ID="ID_1053927695" MODIFIED="1537752468330" TEXT="k&#xf6;nnte in den StyleManager wandern">
 <arrowlink COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" STARTARROW="None" STARTINCLINATION="-17;39;"/>
@@ -1998,22 +2015,23 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1537571967923" TEXT="Tag f&#xfc;r Warnung">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1537754539816" TEXT="Tag f&#xfc;r Warnung">
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1537752476750" TEXT="Tag f&#xfc;r Fehler">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1537571962861" TEXT="Tags zuweisen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1537754568804" TEXT="Tags zuweisen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1537571961484" TEXT="Tags entfernen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1537754595581" TEXT="Tags entfernen">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" SOURCE="ID_383201596" STARTARROW="None" STARTINCLINATION="294;-15;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1534725506867" TEXT="Bookmark speichern">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1537754628081" TEXT="Bookmark speichern">
+<icon BUILTIN="pencil"/>
 <node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1537571978137" TEXT="Technologie">
 <icon BUILTIN="info"/>
 <node CREATED="1537535925874" ID="ID_196796680" MODIFIED="1537535937395" TEXT="Tag / TagTable">
@@ -2031,10 +2049,10 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571771685" ID="ID_1198199438" MODIFIED="1537571817032" TEXT="ErrorIndex">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1537571888654" TEXT="einf&#xfc;gen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537571771685" ID="ID_1198199438" MODIFIED="1537754632532" TEXT="ErrorIndex">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1537754634178" TEXT="einf&#xfc;gen">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1537571889438" TEXT="reorganisieren">
 <icon BUILTIN="flag-yellow"/>
@@ -2078,10 +2096,10 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1537531681238" TEXT="addWarning">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1537531692044" TEXT="nur speziell ausgezeichnete Meldung">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1537754856503" TEXT="addWarning">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1537754858082" TEXT="nur speziell ausgezeichnete Meldung">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1534725674269" TEXT="clearInfoMsg">
@@ -2098,7 +2116,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1534725672469" TEXT="turnError_into_InfoMsg">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1534725585810" TEXT="Markup reduzieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1537754595581" TEXT="Markup reduzieren">
+<arrowlink DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" STARTARROW="None" STARTINCLINATION="294;-15;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1534725593152" TEXT="Bookmarks entfernen">
@@ -2624,8 +2643,8 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1534725759893" TEXT="doErr(text)">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1537754665384" TEXT="doErr(text)">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150463" ID="ID_764543121" MODIFIED="1534120282524">
 <richcontent TYPE="NODE"><html>
   <head>

From 7f760d77e5f8b9ebb1354eff5f3c152211c690f9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 25 Sep 2018 05:31:41 +0200
Subject: [PATCH 108/178] TestControl: prepare a location in the UI for test
 and diagnostics (#1074)

---
 src/gui/ctrl/actions.hpp        |  6 +-
 src/gui/dialog/test-control.hpp | 99 +++++++++++++++++++++++++++++++++
 src/gui/interact/wizard.cpp     | 13 +++++
 src/gui/interact/wizard.hpp     |  4 ++
 wiki/thinkPad.ichthyo.mm        | 91 +++++++++++++++++++++++++++++-
 5 files changed, 208 insertions(+), 5 deletions(-)
 create mode 100644 src/gui/dialog/test-control.hpp

diff --git a/src/gui/ctrl/actions.hpp b/src/gui/ctrl/actions.hpp
index 1cf4d3539..57d99d3ea 100644
--- a/src/gui/ctrl/actions.hpp
+++ b/src/gui/ctrl/actions.hpp
@@ -70,8 +70,8 @@ namespace ctrl {
   
   
   /**
-  * A helper class which registers and handles
-  * user action events.
+  * A helper class which registers global user actions
+  * and populates the main menu and toolbar.
   */
   class Actions
     : util::NonCopyable
@@ -130,6 +130,7 @@ namespace ctrl {
           
           menu("HelpMenu", _("_Help"));
           entry ([&]() { globalCtx_.wizard_.show_HelpAbout(); } , "HelpAbout", Stock::ABOUT);
+          entry ([&]() { globalCtx_.wizard_.launchTestCtrl(); } , "HelpTest", _("Self _Tests..."));
           
           
           menu("WindowMenu", _("_Window"));
@@ -202,6 +203,7 @@ namespace ctrl {
                   </menu>
                   <menu action='HelpMenu'>
                     <menuitem action='HelpAbout'/>
+                    <menuitem action='HelpTest'/>
                   </menu>
                 </menubar>
                 <toolbar  name='ToolBar'>
diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
new file mode 100644
index 000000000..8a80485f1
--- /dev/null
+++ b/src/gui/dialog/test-control.hpp
@@ -0,0 +1,99 @@
+/*
+  TEST-CONTROL.hpp  -  child window to trigger self tests and diagnostics
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file test-control.hpp
+ ** Non-modal dialog window to trigger diagnostics and self test routines.
+ ** This window can be launched from the help menu as child window of the current
+ ** top-level workspace window and stays outside of the regular window and perspective
+ ** management of the Lumiera UI. This window allows for quick-n-dirty development
+ ** helper routines to be hooked up easily within the UI. Actions launched from here
+ ** perform within the same environment as regular user interactions.
+ ** 
+ ** @todo as of 9/2018, this is a first rough draft, relevant for #1099          ////////////////////////////TICKET #1074 gradually augment the self-diagnostics controls in the UI
+ */
+
+
+#ifndef GUI_DIALOG_TEST_CONTROL_H
+#define GUI_DIALOG_TEST_CONTROL_H
+
+
+#include "gui/gtk-base.hpp"
+#include "gui/dialog/dialog.hpp"
+
+namespace gui {
+namespace dialog {
+  
+  
+  class TestControl
+    : public Gtk::Dialog
+    {
+      Gtk::Notebook notebook_;
+      
+      Gtk::Box page_1_;
+      Gtk::Button trigger_1_;
+      
+    public:
+      TestControl (Gtk::Window &parent)
+        : Dialog(_("Test and Diagnostics"), parent, Gtk::DIALOG_DESTROY_WITH_PARENT)
+        , page_1_{Gtk::ORIENTATION_VERTICAL}
+        {
+          using namespace Gtk;
+          
+          // Setup the overall dialog layout
+          set_border_width (BorderPadding);
+          get_content_area()->pack_start (notebook_);
+          
+          //-----Page-1------------------------------
+          trigger_1_.set_label ("_doIt");
+          trigger_1_.set_use_underline();
+          trigger_1_.set_tooltip_markup (_("<b>Ticket #1099</b>:\ntrigger Proc-GUI roundtrip"));
+          trigger_1_.signal_clicked().connect(
+                      mem_fun(*this, &TestControl::demoGuiRoundtrip));
+          
+          page_1_.pack_start (trigger_1_, PACK_SHRINK);
+          notebook_.append_page (page_1_, _("#1099"));
+          
+          
+          show_all_children();
+        }
+      
+        
+    private: /* ==== individual Test/Diagnostics routines ==== */
+      
+      /**
+       * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
+       * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
+       * from the radio buttons to select the flavour of feedback, and the text for feedback content.
+       * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
+       * the ErrorLogDisplay within the InfoboxPanel.
+       */
+      void
+      demoGuiRoundtrip()
+        {
+          UNIMPLEMENTED ("collect command arguments and then send the command message for #1099");
+        }
+    };
+  
+  
+}} // namespace gui::dialog
+#endif /*GUI_DIALOG_TEST_CONTROL_H*/
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 2c7fe3b29..88f5d144d 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -115,5 +115,18 @@ namespace interact {
   }
   
   
+  /**
+   * Launch a non modal child window to trigger self-test actions.
+   * This is a tool for developers and diagnostics. The operations exposed here
+   * allow to trigger some hard wired actions and test routines, performing within
+   * the regular UI environment and on equal footing with user operated controls.
+   */
+  void
+  Wizard::launchTestCtrl()
+  {
+    UNIMPLEMENTED ("create and attach a non-modal child dialog box page");
+  }
+  
+  
   
 }}// namespace gui::interact
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index 9a5a28e75..d57741d45 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -64,6 +64,9 @@ namespace ctrl {
   class GlobalCtx;
   class NotificationHub;
 }
+namespace dialog {
+  class TestControl;
+}
 namespace interact {
   
   using std::unique_ptr;
@@ -90,6 +93,7 @@ namespace interact {
      ~Wizard ();
       
       void show_HelpAbout();
+      void launchTestCtrl();
       
       static ID getErrorLogID() { return proc::asset::meta::theErrorLog_ID; }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index a0f6e7d0b..8db9c8117 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2712,9 +2712,94 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1533689310654" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
-<node CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1533689242460" TEXT="in der Test-Timeline"/>
-<node CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1533689254514" TEXT="triggert Dummy-Command"/>
-<node CREATED="1533689255174" ID="ID_821013695" MODIFIED="1533689263657" TEXT="dieses ruft die Notification_Facade auf"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1537836493850" TEXT="non-modal TestControl">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1537836505458" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537841662854" ID="ID_451055929" MODIFIED="1537841679676" TEXT="Men&#xfc;eintrag im Hilfe-Men&#xfc;">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537841672261" ID="ID_1740266874" MODIFIED="1537841678780" TEXT="wird gemanaged vom Wizard">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836597844" ID="ID_1217826524" MODIFIED="1537836608179" TEXT="Konstrukt wie im Tutorial">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1537836612210" ID="ID_225351262" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-about-dialog.html.en#aboutdialog-example" MODIFIED="1537836626843" TEXT="non-modal about dialog">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1537838250303" ID="ID_1190002074" MODIFIED="1537841497288" TEXT="ist ein sub-window besser">
+<icon BUILTIN="button_cancel"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537838265916" ID="ID_920100816" MODIFIED="1537841473971" TEXT="wie?">
+<icon BUILTIN="help"/>
+<node CREATED="1537838337960" ID="ID_1900235846" MODIFIED="1537838337960" TEXT="set_transient_for (Window&amp; parent)"/>
+<node CREATED="1537838432423" ID="ID_1065922306" MODIFIED="1537838432423" TEXT="set_type_hint (Gdk::WindowTypeHint hint)">
+<node CREATED="1537838435238" ID="ID_1301145489" MODIFIED="1537838439809" TEXT="nicht klar ob relevant"/>
+</node>
+<node CREATED="1537838544449" ID="ID_1666779438" LINK="https://developer.gnome.org/gtkmm/3.22/classGtk_1_1Window.html#a1f70b3c35e8c477ab3c1f9503a37a6a1" MODIFIED="1537838555867" TEXT="set_modal (bool modal=true)"/>
+<node CREATED="1537838781593" MODIFIED="1537838781593" TEXT="property_destroy_with_parent ()"/>
+</node>
+<node CREATED="1537841505883" ID="ID_1112461783" MODIFIED="1537841514485" TEXT="geht wohl, ist aber etwas umst&#xe4;ndlich"/>
+</node>
+<node CREATED="1537841516945" ID="ID_1578548739" MODIFIED="1537841529797" TEXT="Dialog-Basisklasse non-modal">
+<icon BUILTIN="idea"/>
+<node CREATED="1537841531352" ID="ID_1190471518" MODIFIED="1537841543154" TEXT="hat eigene Konstruktoren, die den Dialog non-modal machen"/>
+<node CREATED="1537841543886" ID="ID_59238198" MODIFIED="1537841558488" TEXT="regelt schon automatisch das Verh&#xe4;ltnis zum Vaterfenster"/>
+<node CREATED="1537846114160" ID="ID_1907327221" MODIFIED="1537846128474" TEXT="Vorbild: Joel&apos;s PreferencesDialog">
+<node CREATED="1537846129846" ID="ID_984655666" MODIFIED="1537846137073" TEXT="mu&#xdf; nur noch non-modal sein..."/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836550411" ID="ID_899229612" MODIFIED="1537836572756" TEXT="h&#xe4;ngt (passiv) am UI-Bus">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1537836526719" TEXT="Radiobuttons">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1537834965289" TEXT="Argument-Textbox">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537836584271" TEXT="Pling!">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1537834968776" TEXT="triggert Dummy-Command">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1537835685388" TEXT="Aufruf via Notification_Facade">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1537835197558" TEXT="displayInfo"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1537835021881" TEXT="direkte Bus-Aufrufe">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1537835698918" TEXT="markError">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1537835700414" TEXT="markNote">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1537835764630" TEXT="mark">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835767228" ID="ID_400466516" MODIFIED="1537835899052" TEXT="FLASH">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835848674" ID="ID_1915433481" MODIFIED="1537835898316" TEXT="REVEAL">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835859576" ID="ID_968868056" MODIFIED="1537835897556" TEXT="CLEAR_ERR">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835874382" ID="ID_252957072" MODIFIED="1537835896708" TEXT="CLEAR_MSG">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835880405" ID="ID_992909467" MODIFIED="1537835895900" TEXT="RESET">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835889996" ID="ID_5762574" MODIFIED="1537835895044" TEXT="GenNode">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1534721762112" TEXT="verifizieren">
 <icon BUILTIN="full-6"/>

From 0c082361f360df8f9af3fdbf0278e92ddf2adb8f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 25 Sep 2018 06:06:54 +0200
Subject: [PATCH 109/178] TestControl: hooked up a simple child-dialog (see
 #1174)

...which gives us already the base functionality required to run the first tests

- can be triggered from the Help menu
- non-modal dialog (Gtk::Dialog)
- attached as child / slave-Window to the current active workspace window
- window manager hint to keep it on top
- have a notebook control within the dialog
- attached (passively) to the UI-Bus
---
 src/gui/dialog/test-control.hpp |  7 +++--
 src/gui/interact/wizard.cpp     |  7 ++++-
 src/gui/interact/wizard.hpp     |  1 +
 wiki/thinkPad.ichthyo.mm        | 45 ++++++++++++++++++++++++---------
 4 files changed, 45 insertions(+), 15 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 8a80485f1..c8d242f8c 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -39,6 +39,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/dialog/dialog.hpp"
+#include "gui/ctrl/bus-term.hpp"
 
 namespace gui {
 namespace dialog {
@@ -46,6 +47,7 @@ namespace dialog {
   
   class TestControl
     : public Gtk::Dialog
+    , ctrl::BusTerm
     {
       Gtk::Notebook notebook_;
       
@@ -53,8 +55,9 @@ namespace dialog {
       Gtk::Button trigger_1_;
       
     public:
-      TestControl (Gtk::Window &parent)
+      TestControl (ctrl::BusTerm& upLink, Gtk::Window& parent)
         : Dialog(_("Test and Diagnostics"), parent, Gtk::DIALOG_DESTROY_WITH_PARENT)
+        , ctrl::BusTerm{lib::idi::EntryID<TestControl>{}, upLink}
         , page_1_{Gtk::ORIENTATION_VERTICAL}
         {
           using namespace Gtk;
@@ -74,7 +77,7 @@ namespace dialog {
           notebook_.append_page (page_1_, _("#1099"));
           
           
-          show_all_children();
+          show_all();
         }
       
         
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index 88f5d144d..ec5a96871 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -34,6 +34,7 @@
 #include "gui/interact/spot-locator.hpp"
 #include "gui/workspace/workspace-window.hpp"
 #include "gui/panel/infobox-panel.hpp"
+#include "gui/dialog/test-control.hpp"
 #include "gui/ctrl/notification-hub.hpp"
 #include "gui/ctrl/global-ctx.hpp"
 #include "lib/format-string.hpp"
@@ -124,7 +125,11 @@ namespace interact {
   void
   Wizard::launchTestCtrl()
   {
-    UNIMPLEMENTED ("create and attach a non-modal child dialog box page");
+    if (testControlWindow_)
+      testControlWindow_->present(); // just (re)show the existing window
+    else
+      testControlWindow_ = std::make_unique<dialog::TestControl> (globalCtx_.uiBus_.getAccessPoint(),
+                                                                  globalCtx_.windowLoc_.findActiveWindow());
   }
   
   
diff --git a/src/gui/interact/wizard.hpp b/src/gui/interact/wizard.hpp
index d57741d45..525ef30b7 100644
--- a/src/gui/interact/wizard.hpp
+++ b/src/gui/interact/wizard.hpp
@@ -87,6 +87,7 @@ namespace interact {
     {
       ctrl::GlobalCtx& globalCtx_;
       unique_ptr<ctrl::NotificationHub> notificationHub_;
+      unique_ptr<dialog::TestControl> testControlWindow_;
     
     public:
       Wizard (ctrl::GlobalCtx&);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 8db9c8117..03cdaa014 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2712,10 +2712,10 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1533689310654" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1537836493850" TEXT="non-modal TestControl">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1537836505458" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1537848115131" TEXT="non-modal TestControl">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1537848042515" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537841662854" ID="ID_451055929" MODIFIED="1537841679676" TEXT="Men&#xfc;eintrag im Hilfe-Men&#xfc;">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2723,12 +2723,12 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836597844" ID="ID_1217826524" MODIFIED="1537836608179" TEXT="Konstrukt wie im Tutorial">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537836597844" ID="ID_1217826524" MODIFIED="1537848040826" TEXT="Konstrukt wie im Tutorial">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537836612210" ID="ID_225351262" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-about-dialog.html.en#aboutdialog-example" MODIFIED="1537836626843" TEXT="non-modal about dialog">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1537838250303" ID="ID_1190002074" MODIFIED="1537841497288" TEXT="ist ein sub-window besser">
+<node CREATED="1537838250303" FOLDED="true" ID="ID_1190002074" MODIFIED="1537848102311" TEXT="ist ein sub-window besser">
 <icon BUILTIN="button_cancel"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537838265916" ID="ID_920100816" MODIFIED="1537841473971" TEXT="wie?">
 <icon BUILTIN="help"/>
@@ -2746,12 +2746,30 @@
 <node CREATED="1537841531352" ID="ID_1190471518" MODIFIED="1537841543154" TEXT="hat eigene Konstruktoren, die den Dialog non-modal machen"/>
 <node CREATED="1537841543886" ID="ID_59238198" MODIFIED="1537841558488" TEXT="regelt schon automatisch das Verh&#xe4;ltnis zum Vaterfenster"/>
 <node CREATED="1537846114160" ID="ID_1907327221" MODIFIED="1537846128474" TEXT="Vorbild: Joel&apos;s PreferencesDialog">
-<node CREATED="1537846129846" ID="ID_984655666" MODIFIED="1537846137073" TEXT="mu&#xdf; nur noch non-modal sein..."/>
+<node COLOR="#338800" CREATED="1537848007082" ID="ID_1014258603" MODIFIED="1537848024079" TEXT="Notebook">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537848010330" ID="ID_1307971717" MODIFIED="1537848022373" TEXT="Seite einf&#xfc;gen f&#xfc;r #1099">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1537846129846" ID="ID_984655666" MODIFIED="1537847935725" TEXT="mu&#xdf; nur noch non-modal sein...">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537847939155" ID="ID_1465508298" MODIFIED="1537847959601" TEXT="einfach per Gtk::DialogFlags">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1537847979886" ID="ID_1956886110" MODIFIED="1537847981522" TEXT="DIALOG_DESTROY_WITH_PARENT"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836550411" ID="ID_899229612" MODIFIED="1537836572756" TEXT="h&#xe4;ngt (passiv) am UI-Bus">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537836550411" ID="ID_899229612" MODIFIED="1537848039348" TEXT="h&#xe4;ngt (passiv) am UI-Bus">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1537848045781" ID="ID_766784189" MODIFIED="1537848055613" TEXT="analog zum NotificationService">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1537848056915" ID="ID_64593877" MODIFIED="1537848089997" TEXT="globals.uiBus_.getAccessPoint()">
+<icon BUILTIN="info"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1537836526719" TEXT="Radiobuttons">
 <icon BUILTIN="flag-yellow"/>
@@ -2759,8 +2777,11 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1537834965289" TEXT="Argument-Textbox">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537836584271" TEXT="Pling!">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537848122882" TEXT="Pling!">
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1537848141916" TEXT="Argument-Werte abgreifen">
+<icon BUILTIN="flag-pink"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1537834968776" TEXT="triggert Dummy-Command">

From 74f3ab39326d88a53605b35a7f56b1d1e57e2d8a Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 26 Sep 2018 15:47:39 +0200
Subject: [PATCH 110/178] TestControl: concept draft how to simplify building
 notebook widgets

Gtk::Notebook is a quite powerful container foundation to build complex dialog widgets with multible pages on tabs.
Hower, the construction, wiring an setup is notoriously tedious, due to the repetitiveness
and the sheer amount of child widgets spread over various pages.

This design draft is an attempt to mitigate the required boilerplate, without
overly much obscuring the structure. The basic idea is to package each page into
a locally defined child struct, which is actually heap allocated and managed automatically.
This way, each child page gets its own namespace, and wiring to other components
is made explicit by passing named ctor arguments -- while the overall structure
of building and wiring of widgets stays close to the habits of Gtkmm programming.
---
 src/gui/dialog/test-control.hpp | 126 ++++++++++++++++++++++++--------
 src/gui/interact/wizard.cpp     |   4 +-
 wiki/thinkPad.ichthyo.mm        |  70 +++++++++++++++++-
 3 files changed, 165 insertions(+), 35 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index c8d242f8c..ad99a4224 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -40,61 +40,123 @@
 #include "gui/gtk-base.hpp"
 #include "gui/dialog/dialog.hpp"
 #include "gui/ctrl/bus-term.hpp"
+#include "lib/scoped-ptrvect.hpp"
+//#include "lib/meta/function.hpp"
+#include "lib/nocopy.hpp"
+
+#include <utility>
 
 namespace gui {
 namespace dialog {
   
+  using std::forward;
+  
+  struct FrameVBox
+    {
+      Gtk::Frame frame;
+      Gtk::Box   box;
+      
+      FrameVBox (cuString label)
+        : frame{label}
+        , box{Gtk::ORIENTATION_VERTICAL}
+        {
+          frame.add (box);
+        }
+      
+      operator Gtk::Widget&() { return frame; }
+      
+      void
+      pack_start(Gtk::Widget& child, Gtk::PackOptions options = Gtk::PACK_EXPAND_WIDGET, guint padding = 0)
+        {
+          box.pack_start (child, options, padding);
+        }
+    };
+  
+  class Page
+    : public Gtk::Box
+    , util::NonCopyable
+    {
+    public:
+      Page()
+        : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
+        { }
+      
+      virtual ~Page() { }
+    };
+  
+  class Notebook
+    : public Gtk::Notebook
+    , lib::ScopedPtrVect<Gtk::Widget>
+    {
+    public:
+      template<class PAG, typename...ARGS>
+      Notebook&
+      buildPage (cuString pageLabel, ARGS&& ...ctorArgs)
+        {
+          Gtk::Notebook::append_page (this->manage (new PAG(forward<ARGS> (ctorArgs)...))
+                                     ,pageLabel);
+          return *this;
+        }
+    };
   
   class TestControl
     : public Gtk::Dialog
     , ctrl::BusTerm
     {
-      Gtk::Notebook notebook_;
+      using Bus = ctrl::BusTerm&;
+      Bus busTerm() { return *this; }
       
-      Gtk::Box page_1_;
-      Gtk::Button trigger_1_;
+      
+      struct Page1 : Page
+        {
+          FrameVBox seg_1_{_("log notification")},
+                    seg_2_{_("mark via UI-Bus")};
+          Gtk::Button trigger_1_;
+          
+          Page1(Bus bus)
+            {
+              trigger_1_.set_label ("_doIt");
+              trigger_1_.set_use_underline();
+              trigger_1_.set_tooltip_markup (_("<b>Ticket #1099</b>:\ntrigger Proc-GUI roundtrip"));
+              trigger_1_.signal_clicked().connect(
+                          mem_fun(*this, &Page1::demoGuiRoundtrip));
+              
+              seg_1_.pack_start (trigger_1_, Gtk::PACK_SHRINK);
+              pack_start (seg_1_);
+              pack_start (seg_2_);
+            }
+          
+          /**
+           * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
+           * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
+           * from the radio buttons to select the flavour of feedback, and the text for feedback content.
+           * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
+           * the ErrorLogDisplay within the InfoboxPanel.
+           */
+          void
+          demoGuiRoundtrip()
+            {
+              UNIMPLEMENTED ("collect command arguments and then send the command message for #1099");
+            }
+        };
+      
+      
+      Notebook notebook_;
       
     public:
       TestControl (ctrl::BusTerm& upLink, Gtk::Window& parent)
         : Dialog(_("Test and Diagnostics"), parent, Gtk::DIALOG_DESTROY_WITH_PARENT)
         , ctrl::BusTerm{lib::idi::EntryID<TestControl>{}, upLink}
-        , page_1_{Gtk::ORIENTATION_VERTICAL}
         {
-          using namespace Gtk;
-          
           // Setup the overall dialog layout
           set_border_width (BorderPadding);
           get_content_area()->pack_start (notebook_);
           
-          //-----Page-1------------------------------
-          trigger_1_.set_label ("_doIt");
-          trigger_1_.set_use_underline();
-          trigger_1_.set_tooltip_markup (_("<b>Ticket #1099</b>:\ntrigger Proc-GUI roundtrip"));
-          trigger_1_.signal_clicked().connect(
-                      mem_fun(*this, &TestControl::demoGuiRoundtrip));
-          
-          page_1_.pack_start (trigger_1_, PACK_SHRINK);
-          notebook_.append_page (page_1_, _("#1099"));
-          
+          // construct and wire the pages...
+          notebook_.buildPage<Page1> (_("#1099"), busTerm());
           
           show_all();
         }
-      
-        
-    private: /* ==== individual Test/Diagnostics routines ==== */
-      
-      /**
-       * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
-       * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
-       * from the radio buttons to select the flavour of feedback, and the text for feedback content.
-       * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
-       * the ErrorLogDisplay within the InfoboxPanel.
-       */
-      void
-      demoGuiRoundtrip()
-        {
-          UNIMPLEMENTED ("collect command arguments and then send the command message for #1099");
-        }
     };
   
   
diff --git a/src/gui/interact/wizard.cpp b/src/gui/interact/wizard.cpp
index ec5a96871..accf9ccac 100644
--- a/src/gui/interact/wizard.cpp
+++ b/src/gui/interact/wizard.cpp
@@ -118,8 +118,8 @@ namespace interact {
   
   /**
    * Launch a non modal child window to trigger self-test actions.
-   * This is a tool for developers and diagnostics. The operations exposed here
-   * allow to trigger some hard wired actions and test routines, performing within
+   * This is a tool for diagnostics and development. The operations exposed here
+   * allow to launch some hard wired actions and test routines, performing within
    * the regular UI environment and on equal footing with user operated controls.
    */
   void
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 03cdaa014..c1ca05fbe 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2771,6 +2771,13 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1537962140152" TEXT="setup f&#xfc;r Notebook-Widget">
+<icon BUILTIN="pencil"/>
+<node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1537962304729" TEXT="Prototyp f&#xfc;r generischen Helper">
+<arrowlink COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" STARTARROW="None" STARTINCLINATION="-185;836;"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1537836526719" TEXT="Radiobuttons">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -2824,7 +2831,9 @@
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1534721762112" TEXT="verifizieren">
 <icon BUILTIN="full-6"/>
-<node CREATED="1534721764680" ID="ID_237796687" MODIFIED="1534721771410" TEXT="Belegen der View"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1537961523677" TEXT="Belegen der View">
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1534721838886" TEXT="Verbinden mit bestehendem InfoboxPanel">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -4219,6 +4228,65 @@
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
 </node>
+<node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1537961731447" TEXT="frameworks">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      vorbereitete Grundstrukturen f&#252;r immer wiederkehrende Setups
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1537961734956" ID="ID_345535043" MODIFIED="1537961770028" TEXT="Notebook-Widget">
+<node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
+<icon BUILTIN="forward"/>
+<node CREATED="1537961797061" ID="ID_104206298" MODIFIED="1537961806159" TEXT="extrem viele Komponenten-Widgets"/>
+<node CREATED="1537961807436" ID="ID_1420879044" MODIFIED="1537961819742" TEXT="Namenskollisionen zwischen Pages"/>
+<node CREATED="1537961832009" ID="ID_380956030" MODIFIED="1537961842907" TEXT="Boilerplate-Code goes Spaghetti"/>
+</node>
+<node CREATED="1537961848735" ID="ID_1187685583" MODIFIED="1537961889952" TEXT="L&#xf6;sungs-Ideen">
+<icon BUILTIN="idea"/>
+<node CREATED="1537961860374" ID="ID_933681325" MODIFIED="1537961871080" TEXT="managing container"/>
+<node CREATED="1537961872836" ID="ID_1674501396" MODIFIED="1537961884942" TEXT="builder lambda"/>
+</node>
+<node CREATED="1537961894394" ID="ID_1253130867" MODIFIED="1537961909817" TEXT="Prototyp">
+<node CREATED="1537961917592" ID="ID_591860371" MODIFIED="1537962293792" TEXT="im TestControl">
+<linktarget COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" SOURCE="ID_1553519505" STARTARROW="None" STARTINCLINATION="-185;836;"/>
+</node>
+<node CREATED="1537961950003" ID="ID_1083792924" MODIFIED="1537962085365" TEXT="Schema &quot;managing container&quot;">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn das erscheint mir bodenst&#228;ndiger.
+    </p>
+    <p>
+      GUI-Programmierung mu&#223; bodenst&#228;ding bleiben,
+    </p>
+    <p>
+      man gewinnt hier nichts durch blendende Abstraktionen.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Ich hoffe, da&#223; der Hilfscontainer <i>nahezu transparent </i>gemacht werden kann.
+    </p>
+    <p>
+      Und der Rest sollte so <i>vertraut</i>&#160;aussehen, da&#223; es selbsterkl&#228;rend wird.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1534336325916" ID="ID_762624766" MODIFIED="1534336335351" TEXT="Bindeglieder"/>
 <node CREATED="1534336335963" ID="ID_1176525116" MODIFIED="1534336338575" TEXT="Werkzeug">

From 77980ef024fd3363237e6934fd5bbf0f0adcc8ae Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 26 Sep 2018 16:55:42 +0200
Subject: [PATCH 111/178] TestControl: the first tangible UI feedback caused
 via UI-Bus (see #1099)

wrap up the helpers and wire the connection to the UI-Bus.
Then attempt a direct invocation, still within the GTK thread.

While this might seem as just some silly experiment, in fact it is
*** THE FUCKING FIRST TIME to transmit a visible action to a real widget ***

this links together and integrates various efforts achieved during the last years
---
 src/gui/dialog/test-control.hpp      | 87 ++++++++++++++++++++++------
 src/gui/widget/error-log-display.hpp |  1 +
 wiki/thinkPad.ichthyo.mm             | 14 ++++-
 3 files changed, 81 insertions(+), 21 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index ad99a4224..1e46a12c4 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -30,6 +30,8 @@
  ** perform within the same environment as regular user interactions.
  ** 
  ** @todo as of 9/2018, this is a first rough draft, relevant for #1099          ////////////////////////////TICKET #1074 gradually augment the self-diagnostics controls in the UI
+ ** @todo this header also features a design draft how to simplify building notebook widgets.
+ **       Which could be polished and moved into a separate utility header eventually.
  */
 
 
@@ -41,16 +43,35 @@
 #include "gui/dialog/dialog.hpp"
 #include "gui/ctrl/bus-term.hpp"
 #include "lib/scoped-ptrvect.hpp"
-//#include "lib/meta/function.hpp"
+#include "lib/diff/gen-node.hpp"
 #include "lib/nocopy.hpp"
 
 #include <utility>
 
+#if true  /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 : WIP-WIP-WIP
+namespace proc {
+  namespace asset {
+    namespace meta {
+      class ErrorLog;
+      
+      extern lib::idi::EntryID<ErrorLog> theErrorLog_ID;
+} } }
+#endif    /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 : WIP-WIP-WIP
 namespace gui {
 namespace dialog {
   
   using std::forward;
+  using lib::diff::GenNode;
   
+  
+  /**
+   * Building block for a segment within a dialog page.
+   * This helper widget provides the typical sub section of a dialog
+   * with several child widgets stacked vertically and enclosed within
+   * a frame with a label. The frame serves as the parent widget, as far
+   * as the widget hierarchy is concerned. Both parts are publicly accessible
+   * as members, while providing a shortcut for publishing the box.
+   */
   struct FrameVBox
     {
       Gtk::Frame frame;
@@ -72,6 +93,7 @@ namespace dialog {
         }
     };
   
+  /** explicitly named shortcut for the typical dialog page content holder */
   class Page
     : public Gtk::Box
     , util::NonCopyable
@@ -80,10 +102,29 @@ namespace dialog {
       Page()
         : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
         { }
-      
-      virtual ~Page() { }
     };
   
+  /**
+   * Helper widget to simplify construction and wiring of a [Notebook] widget.
+   * Gtk::Notebook is quite powerful container foundation to build complex dialog widgets with
+   * multiple pages on tabs. However, the construction, wiring an setup is notoriously tedious,
+   * due to the repetitiveness and the sheer amount of child widgets spread over various pages.
+   * 
+   * This design draft is an attempt to mitigate the required boilerplate, without overly much
+   * obscuring the structure. The basic idea is to package each page into a locally defined child
+   * struct, which is actually heap allocated and managed automatically. This way, each child page
+   * gets its own namespace, and wiring to other components is made explicit by passing named ctor
+   * arguments -- while the overall structure  of building and wiring of widgets stays close to the
+   * habits of [programming with GTKmm](https://developer.gnome.org/gtkmm-tutorial/stable/).
+   * - define the pages as custom widgets, typically just as locally known struct types
+   * - invoke #buildPage passing the type and tab label for each page
+   * - define the wiring of the components within a page in the page's ctor
+   * - possibly pass external dependencies for wiring into that ctor
+   * @note the page widgets are actually heap allocated and managed automatically
+   * @see gui::dialog::TestControl as a usage example
+   * 
+   * [Notebook]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-multi-item-containers.html.en#sec-notebook
+   */
   class Notebook
     : public Gtk::Notebook
     , lib::ScopedPtrVect<Gtk::Widget>
@@ -99,14 +140,30 @@ namespace dialog {
         }
     };
   
+  
+  /**
+   * A complex, tabbed-notebook style non-modal dialog window,
+   * dedicated to development, diagnostics and experimentation.
+   * The TestControl can be launched from Lumiera's "Help" menu,
+   * offers an (passive, up-link) [UI-Bus connection](\ref ui-bus.hpp)
+   * and simplifies adding pages for occasional experiments and diagnostics.
+   */
   class TestControl
     : public Gtk::Dialog
-    , ctrl::BusTerm
     {
       using Bus = ctrl::BusTerm&;
-      Bus busTerm() { return *this; }
+      
+      Bus uiBus_;
+      Notebook notebook_;
       
       
+      /**
+       * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
+       * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
+       * from the radio buttons to select the flavour of feedback, and the text for feedback content.
+       * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
+       * the ErrorLogDisplay within the InfoboxPanel.
+       */
       struct Page1 : Page
         {
           FrameVBox seg_1_{_("log notification")},
@@ -119,41 +176,35 @@ namespace dialog {
               trigger_1_.set_use_underline();
               trigger_1_.set_tooltip_markup (_("<b>Ticket #1099</b>:\ntrigger Proc-GUI roundtrip"));
               trigger_1_.signal_clicked().connect(
-                          mem_fun(*this, &Page1::demoGuiRoundtrip));
+                          [&]{ demoGuiRoundtrip(bus); });
               
               seg_1_.pack_start (trigger_1_, Gtk::PACK_SHRINK);
               pack_start (seg_1_);
               pack_start (seg_2_);
             }
           
-          /**
-           * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
-           * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
-           * from the radio buttons to select the flavour of feedback, and the text for feedback content.
-           * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
-           * the ErrorLogDisplay within the InfoboxPanel.
-           */
           void
-          demoGuiRoundtrip()
+          demoGuiRoundtrip (Bus bus)
             {
-              UNIMPLEMENTED ("collect command arguments and then send the command message for #1099");
+              TODO ("collect command arguments and then send the command message for #1099");
+              ID errorLogID = proc::asset::meta::theErrorLog_ID;
+              bus.mark (errorLogID, GenNode{"Message", "Lalü"});
             }
         };
       
       
-      Notebook notebook_;
       
     public:
       TestControl (ctrl::BusTerm& upLink, Gtk::Window& parent)
         : Dialog(_("Test and Diagnostics"), parent, Gtk::DIALOG_DESTROY_WITH_PARENT)
-        , ctrl::BusTerm{lib::idi::EntryID<TestControl>{}, upLink}
+        , uiBus_{upLink}
         {
           // Setup the overall dialog layout
           set_border_width (BorderPadding);
           get_content_area()->pack_start (notebook_);
           
           // construct and wire the pages...
-          notebook_.buildPage<Page1> (_("#1099"), busTerm());
+          notebook_.buildPage<Page1> (_("#1099"), uiBus_);
           
           show_all();
         }
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 51c83665f..aba28a069 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -212,6 +212,7 @@ namespace widget {
             buff->insert_with_tag(buff->end(), text, cuString{markupTagName});
           else
             buff->insert (buff->end(), text);
+          buff->insert (buff->end(), "\n");
           textLog_.scroll_to (cursor);
           return cursor;
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c1ca05fbe..194005921 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2771,8 +2771,8 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1537962140152" TEXT="setup f&#xfc;r Notebook-Widget">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1537969666482" TEXT="setup f&#xfc;r Notebook-Widget">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1537962304729" TEXT="Prototyp f&#xfc;r generischen Helper">
 <arrowlink COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" STARTARROW="None" STARTINCLINATION="-185;836;"/>
 <icon BUILTIN="yes"/>
@@ -2786,6 +2786,13 @@
 </node>
 <node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537848122882" TEXT="Pling!">
 <icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537972817468" ID="ID_443954725" MODIFIED="1537972829195" TEXT="direkt den UI-Bus ansprechen">
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537973078631" ID="ID_476903403" MODIFIED="1537973140285" TEXT="*** first tangible action sent via UI-Bus ***">
+<font NAME="SansSerif" SIZE="28"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1537848141916" TEXT="Argument-Werte abgreifen">
 <icon BUILTIN="flag-pink"/>
 </node>
@@ -4252,7 +4259,8 @@
 <node CREATED="1537961860374" ID="ID_933681325" MODIFIED="1537961871080" TEXT="managing container"/>
 <node CREATED="1537961872836" ID="ID_1674501396" MODIFIED="1537961884942" TEXT="builder lambda"/>
 </node>
-<node CREATED="1537961894394" ID="ID_1253130867" MODIFIED="1537961909817" TEXT="Prototyp">
+<node COLOR="#338800" CREATED="1537961894394" ID="ID_1253130867" MODIFIED="1537969684728" TEXT="Prototyp">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537961917592" ID="ID_591860371" MODIFIED="1537962293792" TEXT="im TestControl">
 <linktarget COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" SOURCE="ID_1553519505" STARTARROW="None" STARTINCLINATION="-185;836;"/>
 </node>

From 10b9abd79ba5f744002905681d89781dcdeec285 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 27 Sep 2018 04:15:27 +0200
Subject: [PATCH 112/178] TestControl: build the necessary control widgets

- a text input field
- a trigger to invoke the showInfo function on GuiNotification
- triggers to send state mark messages via GuiNotification into the UI-Bus
- a combo box to define the action-ID within those state mark messages

With these controls, it should be possible to execute all the variations
of the Tangible element protocol and verify the respective behaviour
has been coded up properly within the receiving ErrorLogDisplay widget

Note the key point (and the next step to code up) is for #1099 to
invoke a dummy/demo command in Proc-Layer, which in turn pushes an
reaction via the GuiNotification facade back into the UI asynchronously...
---
 src/gui/dialog/test-control.hpp | 79 ++++++++++++++++++++++++++++-----
 wiki/thinkPad.ichthyo.mm        | 38 +++++++++++-----
 2 files changed, 94 insertions(+), 23 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 1e46a12c4..4fbfa3cac 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -72,14 +72,15 @@ namespace dialog {
    * as the widget hierarchy is concerned. Both parts are publicly accessible
    * as members, while providing a shortcut for publishing the box.
    */
-  struct FrameVBox
+  struct FrameBox
     {
       Gtk::Frame frame;
       Gtk::Box   box;
       
-      FrameVBox (cuString label)
+      FrameBox (cuString label,
+                 Gtk::Orientation orientation =Gtk::ORIENTATION_VERTICAL)
         : frame{label}
-        , box{Gtk::ORIENTATION_VERTICAL}
+        , box{orientation}
         {
           frame.add (box);
         }
@@ -166,19 +167,75 @@ namespace dialog {
        */
       struct Page1 : Page
         {
-          FrameVBox seg_1_{_("log notification")},
-                    seg_2_{_("mark via UI-Bus")};
-          Gtk::Button trigger_1_;
+          Gtk::Entry content_;
+          FrameBox seg_1_{_("log notification"), Gtk::ORIENTATION_HORIZONTAL},
+                   seg_2_{_("mark via UI-Bus")};
+          Gtk::Button trig_1_, trig_2_, trig_3_, trig_4_;
+          Gtk::RadioButton level_info_{"Info"},
+                           level_warn_{"Warn"},
+                           level_erro_{"Error"};
+          Gtk::Box         markParam_;
+          Gtk::ComboBoxText actionID_{true};  // has free-text entry field
           
           Page1(Bus bus)
             {
-              trigger_1_.set_label ("_doIt");
-              trigger_1_.set_use_underline();
-              trigger_1_.set_tooltip_markup (_("<b>Ticket #1099</b>:\ntrigger Proc-GUI roundtrip"));
-              trigger_1_.signal_clicked().connect(
+              content_.set_tooltip_markup (_("<b>Ticket #1099</b>:\n"
+                                             "text message content\n"
+                                             "<i>when invoking a suitable action,\n"
+                                             "it will be passed down and sent back</i>"));
+              trig_1_.set_use_underline();
+              trig_1_.set_label ("_display text");
+              trig_1_.set_tooltip_markup (_("Trigger Proc-GUI <b>roundtrip</b>\n"
+                                            "Proc invokes GuiNotification::displayInfo"));
+              trig_1_.signal_clicked().connect(
                           [&]{ demoGuiRoundtrip(bus); });
               
-              seg_1_.pack_start (trigger_1_, Gtk::PACK_SHRINK);
+              level_warn_.join_group(level_info_);
+              level_erro_.join_group(level_info_);
+              level_warn_.set_active();
+
+              trig_2_.set_use_underline();
+              trig_2_.property_xalign() = 0;
+              trig_2_.set_label ("mark _error");
+              trig_2_.set_tooltip_markup (_("trigger Proc-command, which in turn\n"
+                                            "sends an error state mark via UI-Bus"));
+              
+              trig_3_.set_use_underline();
+              trig_3_.property_xalign() = 0;
+              trig_3_.set_label ("mark _info");
+              trig_3_.set_tooltip_markup (_("trigger Proc-command, which in turn\n"
+                                            "sends an info state mark via UI-Bus"));
+              
+              trig_4_.set_use_underline();
+              trig_4_.set_label ("_mark");
+              trig_4_.set_tooltip_markup (_("trigger Proc-command, which in turn\n"
+                                            "sends an <b>state mark</b> message, using\n"
+                                            "the message action-ID from the combobox"));
+              actionID_.append ("Flash");
+              actionID_.append ("revealYourself");
+              actionID_.append ("clearErr");
+              actionID_.append ("clearMsg");
+              actionID_.append ("expand");
+              actionID_.append ("reset");
+              actionID_.set_active(1);
+              actionID_.set_tooltip_markup("select the specific action-ID\n"
+                                           "when sending a <b>mark</b> message.\n"
+                                           "<u>note</u>: can enter arbitrary ID");
+              
+              markParam_.pack_start(trig_4_);
+              markParam_.pack_start(actionID_, Gtk::PACK_SHRINK);
+              
+              
+              seg_1_.pack_start (trig_1_, Gtk::PACK_EXPAND_WIDGET);
+              seg_1_.pack_start (level_info_, Gtk::PACK_SHRINK);
+              seg_1_.pack_start (level_warn_, Gtk::PACK_SHRINK);
+              seg_1_.pack_start (level_erro_, Gtk::PACK_SHRINK);
+              
+              seg_2_.pack_start (trig_2_);
+              seg_2_.pack_start (trig_3_);
+              seg_2_.pack_start (markParam_);
+              
+              pack_start (content_);
               pack_start (seg_1_);
               pack_start (seg_2_);
             }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 194005921..cbf8ab468 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2231,7 +2231,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1534119944991" TEXT="NotificationController im Wizzard ansiedeln">
+<node COLOR="#435e98" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1538013202439" TEXT="NotificationController im Wizzard ansiedeln">
 <icon BUILTIN="full-1"/>
 <node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1533768810140" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
 <icon BUILTIN="help"/>
@@ -2277,7 +2277,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1534119951865" TEXT="mit Bus verdrahten und ID global konstant definieren">
+<node COLOR="#435e98" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1538013206894" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1537531589557" TEXT="Empfangs-Logik im NotificationHub (Controller)">
@@ -2712,8 +2712,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1533689310654" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1537848115131" TEXT="non-modal TestControl">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1538013179410" TEXT="non-modal TestControl">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1537848042515" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537841662854" ID="ID_451055929" MODIFIED="1537841679676" TEXT="Men&#xfc;eintrag im Hilfe-Men&#xfc;">
@@ -2773,20 +2773,22 @@
 </node>
 <node COLOR="#338800" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1537969666482" TEXT="setup f&#xfc;r Notebook-Widget">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1537962304729" TEXT="Prototyp f&#xfc;r generischen Helper">
+<node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1538013249329" TEXT="Prototyp f&#xfc;r generischen Helper">
 <arrowlink COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" STARTARROW="None" STARTINCLINATION="-185;836;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1537836526719" TEXT="Radiobuttons">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1538013112289" TEXT="Radiobuttons">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1537834965289" TEXT="Argument-Textbox">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1538013155212" TEXT="Argument-Textbox">
+<arrowlink COLOR="#19f524" DESTINATION="ID_1072038781" ENDARROW="Default" ENDINCLINATION="-7;-200;" ID="Arrow_ID_746117643" STARTARROW="None" STARTINCLINATION="94;0;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537848122882" TEXT="Pling!">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537972817468" ID="ID_443954725" MODIFIED="1537972829195" TEXT="direkt den UI-Bus ansprechen">
+<node COLOR="#338800" CREATED="1537972817468" FOLDED="true" ID="ID_443954725" MODIFIED="1537977645522" TEXT="direkt den UI-Bus ansprechen">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537973078631" ID="ID_476903403" MODIFIED="1537973140285" TEXT="*** first tangible action sent via UI-Bus ***">
 <font NAME="SansSerif" SIZE="28"/>
@@ -2803,7 +2805,18 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1537835685388" TEXT="Aufruf via Notification_Facade">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1537835197558" TEXT="displayInfo"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1537977714184" TEXT="displayInfo">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977715375" ID="ID_26283848" MODIFIED="1537977727814" TEXT="INFO">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977721054" ID="ID_1182006449" MODIFIED="1537977727294" TEXT="WARN">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977723454" ID="ID_484673349" MODIFIED="1537977726486" TEXT="ERROR">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1537835021881" TEXT="direkte Bus-Aufrufe">
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1537835698918" TEXT="markError">
@@ -2812,7 +2825,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1537835700414" TEXT="markNote">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1537835764630" TEXT="mark">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1538013147452" TEXT="mark">
+<linktarget COLOR="#19f524" DESTINATION="ID_1072038781" ENDARROW="Default" ENDINCLINATION="-7;-200;" ID="Arrow_ID_746117643" SOURCE="ID_556296967" STARTARROW="None" STARTINCLINATION="94;0;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835767228" ID="ID_400466516" MODIFIED="1537835899052" TEXT="FLASH">
 <icon BUILTIN="flag-yellow"/>

From 6b941b2c1e138537654d5b7bfe2a2c8970abc039 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Sep 2018 01:26:35 +0200
Subject: [PATCH 113/178] TestControl: retrieve action arguments from the
 dialog controls

...and this also demonstrates how action code will typically be arranged within such a dialog page
---
 src/gui/dialog/test-control.hpp | 26 +++++++++++++++++++++-----
 wiki/thinkPad.ichthyo.mm        | 10 ++++++----
 2 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 4fbfa3cac..2377a07c8 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -47,6 +47,7 @@
 #include "lib/nocopy.hpp"
 
 #include <utility>
+#include <string>  /////////TODO
 
 #if true  /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 : WIP-WIP-WIP
 namespace proc {
@@ -60,6 +61,7 @@ namespace proc {
 namespace gui {
 namespace dialog {
   
+  using std::string; ////////////TODO
   using std::forward;
   using lib::diff::GenNode;
   
@@ -177,6 +179,13 @@ namespace dialog {
           Gtk::Box         markParam_;
           Gtk::ComboBoxText actionID_{true};  // has free-text entry field
           
+          string
+          getLogLevel()
+            {
+              return level_info_.get_active()? "NOTE_INFO" :
+                     level_warn_.get_active()? "NOTE_WARN" : "NOTE_ERROR";
+            }
+          
           Page1(Bus bus)
             {
               content_.set_tooltip_markup (_("<b>Ticket #1099</b>:\n"
@@ -187,8 +196,6 @@ namespace dialog {
               trig_1_.set_label ("_display text");
               trig_1_.set_tooltip_markup (_("Trigger Proc-GUI <b>roundtrip</b>\n"
                                             "Proc invokes GuiNotification::displayInfo"));
-              trig_1_.signal_clicked().connect(
-                          [&]{ demoGuiRoundtrip(bus); });
               
               level_warn_.join_group(level_info_);
               level_erro_.join_group(level_info_);
@@ -225,7 +232,6 @@ namespace dialog {
               markParam_.pack_start(trig_4_);
               markParam_.pack_start(actionID_, Gtk::PACK_SHRINK);
               
-              
               seg_1_.pack_start (trig_1_, Gtk::PACK_EXPAND_WIDGET);
               seg_1_.pack_start (level_info_, Gtk::PACK_SHRINK);
               seg_1_.pack_start (level_warn_, Gtk::PACK_SHRINK);
@@ -238,14 +244,24 @@ namespace dialog {
               pack_start (content_);
               pack_start (seg_1_);
               pack_start (seg_2_);
+              
+              // define the action triggers...
+              trig_1_.signal_clicked().connect(
+                          [&]{ demoGuiRoundtrip(bus, "displayInfo("+getLogLevel()+", \""+content_.get_text()+"\")"); });
+              trig_2_.signal_clicked().connect(
+                          [&]{ demoGuiRoundtrip(bus, "markError(\""+content_.get_text()+"\")"); });
+              trig_3_.signal_clicked().connect(
+                          [&]{ demoGuiRoundtrip(bus, "markNote(\""+content_.get_text()+"\")"); });
+              trig_4_.signal_clicked().connect(
+                          [&]{ demoGuiRoundtrip(bus, "mark("+actionID_.get_entry_text()+", \""+content_.get_text()+"\")"); });
             }
           
           void
-          demoGuiRoundtrip (Bus bus)
+          demoGuiRoundtrip (Bus bus, string placeholder)
             {
               TODO ("collect command arguments and then send the command message for #1099");
               ID errorLogID = proc::asset::meta::theErrorLog_ID;
-              bus.mark (errorLogID, GenNode{"Message", "Lalü"});
+              bus.mark (errorLogID, GenNode{"Message", placeholder});
             }
         };
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index cbf8ab468..e42405ae8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2788,19 +2788,21 @@
 </node>
 <node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537848122882" TEXT="Pling!">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537972817468" FOLDED="true" ID="ID_443954725" MODIFIED="1537977645522" TEXT="direkt den UI-Bus ansprechen">
+<node COLOR="#338800" CREATED="1537972817468" FOLDED="true" ID="ID_443954725" MODIFIED="1538176841339" TEXT="direkt den UI-Bus ansprechen">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537973078631" ID="ID_476903403" MODIFIED="1537973140285" TEXT="*** first tangible action sent via UI-Bus ***">
 <font NAME="SansSerif" SIZE="28"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1537848141916" TEXT="Argument-Werte abgreifen">
-<icon BUILTIN="flag-pink"/>
+<node COLOR="#338800" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1538176894784" TEXT="Argument-Werte abgreifen">
+<arrowlink COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" STARTARROW="None" STARTINCLINATION="-10;35;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1537834968776" TEXT="triggert Dummy-Command">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538176877674" TEXT="triggert Dummy-Command">
+<linktarget COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" SOURCE="ID_1206004" STARTARROW="None" STARTINCLINATION="-10;35;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1537835685388" TEXT="Aufruf via Notification_Facade">

From e54556f565e1504ea4b85cfabab2debe251c0095 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Sep 2018 13:37:48 +0200
Subject: [PATCH 114/178] DemoGuiRoundtrip: draft mock commands to be invoked

this would be the first half of the roundtrip, the call UI -> Proc
---
 src/proc/cmd.hpp          |   5 ++
 src/proc/cmd/meta-cmd.cpp | 111 ++++++++++++++++++++++++++++++++++++--
 wiki/thinkPad.ichthyo.mm  |  34 +++++++-----
 3 files changed, 134 insertions(+), 16 deletions(-)

diff --git a/src/proc/cmd.hpp b/src/proc/cmd.hpp
index e23aec071..c56ac6c2c 100644
--- a/src/proc/cmd.hpp
+++ b/src/proc/cmd.hpp
@@ -76,6 +76,11 @@ namespace cmd {
   extern CommandSetup test_meta_activateContentDiff;               ////////////////////////////////TICKET #211 prefix test_ bypasses logging and immediately executes for now (2018)
   extern CommandSetup meta_deactivateContentDiff;
   
+  //--Demo-and-Development----
+  extern CommandSetup test_meta_displayInfo;
+  extern CommandSetup test_meta_markError;
+  extern CommandSetup test_meta_markNote;
+  extern CommandSetup test_meta_markAction;
   
   
 }} // namespace proc::cmd
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 100eddfe3..ef0cf7ed3 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -39,16 +39,23 @@
 #include "proc/control/command-def.hpp"
 //#include "proc/mobject/session.hpp"
 #include "include/gui-notification-facade.h"
+#include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 //#include "lib/symbol.hpp"
 #include "lib/idi/entry-id.hpp"
 //#include "lib/format-string.hpp"
 
-//#include <string>
+#include <string>
 
 using lib::hash::LuidH;
-//using std::string;
+using gui::ID;
+using gui::NOTE_INFO;
+using gui::NOTE_WARN;
+using gui::NOTE_ERROR;
+using gui::NotifyLevel;
+using gui::GuiNotification;
 //using util::cStr;
 //using util::_Fmt;
+using std::string;
 
 
 namespace proc {
@@ -80,7 +87,7 @@ COMMAND_DEFINITION (test_meta_activateContentDiff)
                         TODO ("send a population diff starting from scratch");
                         TODO ("activate life-update service within the session");
                         // Temporary hack to get any meaningful UI <-> Proc communication
-                        gui::GuiNotification::facade().displayInfo(gui::NOTE_INFO, "Request: population-Diff from Session.");
+                        GuiNotification::facade().displayInfo(NOTE_INFO, "Request: population-Diff from Session.");
                       })
        .captureUndo ([]() -> bool
                       {
@@ -130,6 +137,104 @@ COMMAND_DEFINITION (meta_deactivateContentDiff)
   
   
   
+  /* ===== Demo and Development ===== */
+  
+  /** DemoGuiRoundtrip: push a notification info message back up into the UI.
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   */
+COMMAND_DEFINITION (test_meta_displayInfo)
+  {
+    def.operation ([](NotifyLevel level, string message)
+                      {
+                        GuiNotification::facade().displayInfo (level, message);
+                      })
+       .captureUndo ([](NotifyLevel level, string message) -> bool
+                      {
+                        return true;
+                      })
+       .undoOperation ([](NotifyLevel level, string message, bool wasActive)
+                      {
+                        if (wasActive)
+                          {
+                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
+                          }
+                      });
+  };
+  
+  
+  /** DemoGuiRoundtrip: send a `markError` message back up into the UI.
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   */
+COMMAND_DEFINITION (test_meta_markError)
+  {
+    def.operation ([](string message)
+                      {
+                        ID errorLogID = gui::interact::Wizard::getErrorLogID();
+                        GuiNotification::facade().markError (errorLogID, message);
+                      })
+       .captureUndo ([](string message) -> bool
+                      {
+                        return true;
+                      })
+       .undoOperation ([](string message, bool wasActive)
+                      {
+                        if (wasActive)
+                          {
+                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
+                          }
+                      });
+  };
+  
+  
+  /** DemoGuiRoundtrip: send a `markNote` message back up into the UI.
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   */
+COMMAND_DEFINITION (test_meta_markNote)
+  {
+    def.operation ([](string message)
+                      {
+                        ID errorLogID = gui::interact::Wizard::getErrorLogID();
+                        GuiNotification::facade().markNote (errorLogID, message);
+                      })
+       .captureUndo ([](string message) -> bool
+                      {
+                        return true;
+                      })
+       .undoOperation ([](string message, bool wasActive)
+                      {
+                        if (wasActive)
+                          {
+                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
+                          }
+                      });
+  };
+  
+  
+  /** DemoGuiRoundtrip: send a generic `mark` message with given _action ID_ back up into the UI.
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   */
+COMMAND_DEFINITION (test_meta_markAction)
+  {
+    def.operation ([](string actionID, string message)
+                      {
+                        ID errorLogID = gui::interact::Wizard::getErrorLogID();
+                        UNIMPLEMENTED ("GuiNotification::facade().mark (errorLogID, actionID, message);");
+                      })
+       .captureUndo ([](string actionID, string message) -> bool
+                      {
+                        return true;
+                      })
+       .undoOperation ([](string actionID, string message, bool wasActive)
+                      {
+                        if (wasActive)
+                          {
+                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
+                          }
+                      });
+  };
+  
+  
+  
   /** more to come here...*/
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e42405ae8..51b725218 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2804,28 +2804,36 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538176877674" TEXT="triggert Dummy-Command">
 <linktarget COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" SOURCE="ID_1206004" STARTARROW="None" STARTINCLINATION="-10;35;"/>
 <icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1538220904703" HGAP="46" ID="ID_1997338106" MODIFIED="1538220975996" TEXT="definieren..." VSHIFT="31">
+<icon BUILTIN="yes"/>
+<node CREATED="1538220944278" MODIFIED="1538220944278" TEXT="test_meta_displayInfo"/>
+<node CREATED="1538220949651" MODIFIED="1538220949651" TEXT="test_meta_markError"/>
+<node CREATED="1538220955266" MODIFIED="1538220955266" TEXT="test_meta_markNote"/>
+<node CREATED="1538220961641" MODIFIED="1538220961641" TEXT="test_meta_markAction"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1537835685388" TEXT="Aufruf via Notification_Facade">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1537977714184" TEXT="displayInfo">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977715375" ID="ID_26283848" MODIFIED="1537977727814" TEXT="INFO">
-<icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977721054" ID="ID_1182006449" MODIFIED="1537977727294" TEXT="WARN">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538220890763" TEXT="Aufruf via Notification_Facade">
 <icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1538220882124" TEXT="displayInfo">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537977715375" ID="ID_26283848" MODIFIED="1538220884023" TEXT="INFO">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537977723454" ID="ID_484673349" MODIFIED="1537977726486" TEXT="ERROR">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537977721054" ID="ID_1182006449" MODIFIED="1538220885525" TEXT="WARN">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537977723454" ID="ID_484673349" MODIFIED="1538220887767" TEXT="ERROR">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1537835021881" TEXT="direkte Bus-Aufrufe">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1537835698918" TEXT="markError">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1538220877346" TEXT="markError">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1537835700414" TEXT="markNote">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1538220879207" TEXT="markNote">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1538013147452" TEXT="mark">
 <linktarget COLOR="#19f524" DESTINATION="ID_1072038781" ENDARROW="Default" ENDINCLINATION="-7;-200;" ID="Arrow_ID_746117643" SOURCE="ID_556296967" STARTARROW="None" STARTINCLINATION="94;0;"/>

From abfb897336772f9268ac87071f0646437a90a80d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Sep 2018 15:23:47 +0200
Subject: [PATCH 115/178] DemoGuiRoundtrip: now invoke the Proc-Layer commands
 from within the UI dialog

---
 src/gui/dialog/test-control.hpp | 32 +++++++++++++++-----
 src/gui/model/tangible.hpp      | 28 +++++++++++++-----
 src/proc/cmd/meta-cmd.cpp       | 52 +++++++++++++--------------------
 wiki/thinkPad.ichthyo.mm        | 20 +++++++++----
 4 files changed, 79 insertions(+), 53 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 2377a07c8..e9045c5cb 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -42,6 +42,9 @@
 #include "gui/gtk-base.hpp"
 #include "gui/dialog/dialog.hpp"
 #include "gui/ctrl/bus-term.hpp"
+#include "gui/model/tangible.hpp"
+#include "proc/cmd.hpp"
+#include "include/gui-notification-facade.h"
 #include "lib/scoped-ptrvect.hpp"
 #include "lib/diff/gen-node.hpp"
 #include "lib/nocopy.hpp"
@@ -179,14 +182,27 @@ namespace dialog {
           Gtk::Box         markParam_;
           Gtk::ComboBoxText actionID_{true};  // has free-text entry field
           
-          string
+          int
           getLogLevel()
             {
-              return level_info_.get_active()? "NOTE_INFO" :
-                     level_warn_.get_active()? "NOTE_WARN" : "NOTE_ERROR";
+              return level_info_.get_active()? NOTE_INFO :
+                     level_warn_.get_active()? NOTE_WARN : NOTE_ERROR;
             }
           
-          Page1(Bus bus)
+          string
+          getContent()
+            {
+              return string{content_.get_text()};
+            }
+          
+          string
+          getActionID()
+            {
+              return string{actionID_.get_entry_text()};
+            }
+          
+          
+          Page1 (Bus bus)
             {
               content_.set_tooltip_markup (_("<b>Ticket #1099</b>:\n"
                                              "text message content\n"
@@ -247,13 +263,13 @@ namespace dialog {
               
               // define the action triggers...
               trig_1_.signal_clicked().connect(
-                          [&]{ demoGuiRoundtrip(bus, "displayInfo("+getLogLevel()+", \""+content_.get_text()+"\")"); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_meta_displayInfo, getLogLevel(), getContent())); });
               trig_2_.signal_clicked().connect(
-                          [&]{ demoGuiRoundtrip(bus, "markError(\""+content_.get_text()+"\")"); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_meta_markError,   getContent()));                });
               trig_3_.signal_clicked().connect(
-                          [&]{ demoGuiRoundtrip(bus, "markNote(\""+content_.get_text()+"\")"); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_meta_markNote,    getContent()));                });
               trig_4_.signal_clicked().connect(
-                          [&]{ demoGuiRoundtrip(bus, "mark("+actionID_.get_entry_text()+", \""+content_.get_text()+"\")"); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_meta_markAction,  getActionID(), getContent())); });
             }
           
           void
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index fb07452a4..55f8d73ae 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -241,18 +241,32 @@ namespace model {
   
   
   
+  /** convenience shortcut to build a message suitable for command invocation
+   * @param args... sequence of arguments to be packaged into a lib::diff::Rec for invocation
+   */
+  template<typename...ARGS>
+  inline lib::diff::GenNode
+  commandMessage (Symbol cmdID, ARGS&&... args)
+  {
+    using lib::diff::Rec;
+    using lib::diff::GenNode;
+    using GenNodeIL = std::initializer_list<GenNode>;
+    
+    
+    return GenNode (string{cmdID},
+                    Rec(Rec::TYPE_NIL_SYM
+                       ,GenNodeIL{}
+                       ,GenNodeIL {std::forward<ARGS> (args)...}));
+  }                  // not typed, no attributes, all arguments as children
+  
+  
   /** convenience shortcut to issue a command with several arguments */
   template<typename...ARGS>
   inline void
   Tangible::invoke (Symbol cmdID, ARGS&&... args)
   {
-    using GenNodeIL = std::initializer_list<GenNode>;
-    
-    invoke (cmdID,
-            Rec(Rec::TYPE_NIL_SYM
-               ,GenNodeIL{}
-               ,GenNodeIL {std::forward<ARGS> (args)...}));
-  }           // not typed, no attributes, all arguments as children
+    uiBus_.act (commandMessage (cmdID, std::forward<ARGS> (args)...));
+  }
   
   
   /**
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index ef0cf7ed3..2369fda9b 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -42,7 +42,7 @@
 #include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 //#include "lib/symbol.hpp"
 #include "lib/idi/entry-id.hpp"
-//#include "lib/format-string.hpp"
+#include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 
 #include <string>
 
@@ -54,7 +54,7 @@ using gui::NOTE_ERROR;
 using gui::NotifyLevel;
 using gui::GuiNotification;
 //using util::cStr;
-//using util::_Fmt;
+using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 using std::string;
 
 
@@ -144,20 +144,17 @@ COMMAND_DEFINITION (meta_deactivateContentDiff)
    */
 COMMAND_DEFINITION (test_meta_displayInfo)
   {
-    def.operation ([](NotifyLevel level, string message)
+    def.operation ([](int level, string message)
                       {
-                        GuiNotification::facade().displayInfo (level, message);
+                        GuiNotification::facade().displayInfo (static_cast<NotifyLevel>(level), message);
                       })
-       .captureUndo ([](NotifyLevel level, string message) -> bool
+       .captureUndo ([](int level, string message) -> string
                       {
-                        return true;
+                        return _Fmt{"displayInfo(%d, '%s')"} % level % message;
                       })
-       .undoOperation ([](NotifyLevel level, string message, bool wasActive)
+       .undoOperation ([](int, string, string uiAction)
                       {
-                        if (wasActive)
-                          {
-                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
-                          }
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO UI-Action: "+uiAction);
                       });
   };
   
@@ -172,16 +169,13 @@ COMMAND_DEFINITION (test_meta_markError)
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
                         GuiNotification::facade().markError (errorLogID, message);
                       })
-       .captureUndo ([](string message) -> bool
+       .captureUndo ([](string message) -> string
                       {
-                        return true;
+                        return _Fmt{"GUI::errorLog <- markError('%s')"} % message;
                       })
-       .undoOperation ([](string message, bool wasActive)
+       .undoOperation ([](string, string uiAction)
                       {
-                        if (wasActive)
-                          {
-                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
-                          }
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO UI-Action: "+uiAction);
                       });
   };
   
@@ -196,16 +190,13 @@ COMMAND_DEFINITION (test_meta_markNote)
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
                         GuiNotification::facade().markNote (errorLogID, message);
                       })
-       .captureUndo ([](string message) -> bool
+       .captureUndo ([](string message) -> string
                       {
-                        return true;
+                        return _Fmt{"GUI::errorLog <- markNote('%s')"} % message;
                       })
-       .undoOperation ([](string message, bool wasActive)
+       .undoOperation ([](string, string uiAction)
                       {
-                        if (wasActive)
-                          {
-                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
-                          }
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO UI-Action: "+uiAction);
                       });
   };
   
@@ -220,16 +211,13 @@ COMMAND_DEFINITION (test_meta_markAction)
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
                         UNIMPLEMENTED ("GuiNotification::facade().mark (errorLogID, actionID, message);");
                       })
-       .captureUndo ([](string actionID, string message) -> bool
+       .captureUndo ([](string actionID, string message) -> string
                       {
-                        return true;
+                        return _Fmt{"GUI::errorLog <- mark(%s, '%s')"} % actionID % message;
                       })
-       .undoOperation ([](string actionID, string message, bool wasActive)
+       .undoOperation ([](string, string, string uiAction)
                       {
-                        if (wasActive)
-                          {
-                            GuiNotification::facade().displayInfo (NOTE_WARN, "Sorry, can't do that Dave.");
-                          }
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO UI-Action: "+uiAction);
                       });
   };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 51b725218..880cff9e8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2801,15 +2801,23 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538176877674" TEXT="triggert Dummy-Command">
+<node COLOR="#338800" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538227119464" TEXT="triggert Dummy-Command">
 <linktarget COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" SOURCE="ID_1206004" STARTARROW="None" STARTINCLINATION="-10;35;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1538220904703" HGAP="46" ID="ID_1997338106" MODIFIED="1538220975996" TEXT="definieren..." VSHIFT="31">
 <icon BUILTIN="yes"/>
-<node CREATED="1538220944278" MODIFIED="1538220944278" TEXT="test_meta_displayInfo"/>
-<node CREATED="1538220949651" MODIFIED="1538220949651" TEXT="test_meta_markError"/>
-<node CREATED="1538220955266" MODIFIED="1538220955266" TEXT="test_meta_markNote"/>
-<node CREATED="1538220961641" MODIFIED="1538220961641" TEXT="test_meta_markAction"/>
+<node COLOR="#338800" CREATED="1538220944278" ID="ID_1508594379" MODIFIED="1538227139691" TEXT="test_meta_displayInfo">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538220949651" ID="ID_1282771011" MODIFIED="1538227138739" TEXT="test_meta_markError">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538220955266" ID="ID_1011451863" MODIFIED="1538227137340" TEXT="test_meta_markNote">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538220961641" ID="ID_1936475731" MODIFIED="1538227131061" TEXT="test_meta_markAction">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538220890763" TEXT="Aufruf via Notification_Facade">

From 5fd3fb3d7b02ae72b5ac3eca5c65284c5ccefb9e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Sep 2018 17:34:25 +0200
Subject: [PATCH 116/178] DemoGuiRoundtrip: first successful complete roundtrip
 GUI->Proc->GUI (see #1099)

A communication chain, triggered from a button in a non-modal dialog box,
passing invocation into another thread, dispatched by the ProcDispatcher,
then again passing thread boundaries to push a response back into the UI.

This is a milestone, and integrates several components built during the last years.
---
 src/common/notification-interface-proxy.cpp | 10 +++---
 src/gui/notification-service.cpp            | 12 +++----
 src/include/gui-notification-facade.h       |  6 ++--
 wiki/thinkPad.ichthyo.mm                    | 36 +++++++++++++++++++--
 4 files changed, 48 insertions(+), 16 deletions(-)

diff --git a/src/common/notification-interface-proxy.cpp b/src/common/notification-interface-proxy.cpp
index cb8951562..e6d1160f1 100644
--- a/src/common/notification-interface-proxy.cpp
+++ b/src/common/notification-interface-proxy.cpp
@@ -62,11 +62,11 @@ namespace facade {
       
       //----Proxy-Implementation-of-GuiNotification--------
       
-      void displayInfo (Level level, string const& text) override  { _i_.displayInfo (level, cStr(text));                  }
-      void markError (ID uiElement,  string const& text) override  { _i_.markError(uiElement.getHash().get(), cStr(text)); }
-      void markNote  (ID uiElement,  string const& text) override  { _i_.markNote (uiElement.getHash().get(), cStr(text)); }
-      void mutate (ID uiElement, MutationMessage&& diff) override  { _i_.mutate   (uiElement.getHash().get(), &diff);      }
-      void triggerGuiShutdown (string const& cause)      override  { _i_.triggerGuiShutdown (cStr(cause));                 }
+      void displayInfo (Level level, string const& text) override  { _i_.displayInfo (level, cStr(text));   }
+      void markError (ID uiElement,  string const& text) override  { _i_.markError(&uiElement, cStr(text)); }
+      void markNote  (ID uiElement,  string const& text) override  { _i_.markNote (&uiElement, cStr(text)); }
+      void mutate (ID uiElement, MutationMessage&& diff) override  { _i_.mutate   (&uiElement, &diff);      }
+      void triggerGuiShutdown (string const& cause)      override  { _i_.triggerGuiShutdown (cStr(cause));  }
       
       
     public:
diff --git a/src/gui/notification-service.cpp b/src/gui/notification-service.cpp
index 2862a1fb2..73251c88d 100644
--- a/src/gui/notification-service.cpp
+++ b/src/gui/notification-service.cpp
@@ -232,27 +232,27 @@ namespace gui {
                                                              }
                                                           )
                                , LUMIERA_INTERFACE_INLINE (markError,
-                                                           void, (LumieraUid element, const char* text),
+                                                           void, (const void* element, const char* text),
                                                              {
                                                                if (!_instance) lumiera_error_set (LUMIERA_ERROR_LIFECYCLE, text);
                                                                else
-                                                                 _instance().markError (reinterpret_cast<ID> (*element), text);
+                                                                 _instance().markError (*static_cast<lib::idi::BareEntryID const*> (element), text);
                                                              }
                                                           )
                                , LUMIERA_INTERFACE_INLINE (markNote,
-                                                           void, (LumieraUid element, const char* text),
+                                                           void, (const void* element, const char* text),
                                                              {
                                                                if (!_instance) lumiera_error_set (LUMIERA_ERROR_LIFECYCLE, text);
                                                                else
-                                                                 _instance().markNote (reinterpret_cast<ID> (*element), text);
+                                                                 _instance().markNote (*static_cast<lib::idi::BareEntryID const*> (element), text);
                                                              }
                                                           )
                                , LUMIERA_INTERFACE_INLINE (mutate,
-                                                           void, (LumieraUid element, void* diff),
+                                                           void, (const void* element, void* diff),
                                                              {
                                                                if (!_instance) lumiera_error_set (LUMIERA_ERROR_LIFECYCLE, "passing diff message");
                                                                else
-                                                                 _instance().mutate (reinterpret_cast<ID> (*element), move(*reinterpret_cast<MutationMessage*> (diff)));
+                                                                 _instance().mutate (*static_cast<lib::idi::BareEntryID const*> (element), move(*reinterpret_cast<MutationMessage*> (diff)));
                                                              }
                                                           )
                                , LUMIERA_INTERFACE_INLINE (triggerGuiShutdown,
diff --git a/src/include/gui-notification-facade.h b/src/include/gui-notification-facade.h
index f85f00fc1..6babf13f7 100644
--- a/src/include/gui-notification-facade.h
+++ b/src/include/gui-notification-facade.h
@@ -129,9 +129,9 @@ extern "C" {
 
 LUMIERA_INTERFACE_DECLARE (lumieraorg_GuiNotification, 0,
                            LUMIERA_INTERFACE_SLOT (void, displayInfo,        (uint, const char*)),
-                           LUMIERA_INTERFACE_SLOT (void, markError,          (LumieraUid, const char*)),
-                           LUMIERA_INTERFACE_SLOT (void, markNote,           (LumieraUid, const char*)),
-                           LUMIERA_INTERFACE_SLOT (void, mutate,             (LumieraUid, void*)),
+                           LUMIERA_INTERFACE_SLOT (void, markError,          (const void*, const char*)),  ////////////TICKET #1175 : need a way to pass EntryID
+                           LUMIERA_INTERFACE_SLOT (void, markNote,           (const void*, const char*)),
+                           LUMIERA_INTERFACE_SLOT (void, mutate,             (const void*, void*)),
                            LUMIERA_INTERFACE_SLOT (void, triggerGuiShutdown, (const char*)),
 );
 
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 880cff9e8..70f4b52e4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2835,8 +2835,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1537835021881" TEXT="direkte Bus-Aufrufe">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1538234774766" TEXT="direkte Bus-Aufrufe">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1538220877346" TEXT="markError">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2865,11 +2865,43 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538230509179" HGAP="22" ID="ID_657255465" MODIFIED="1538232922694" TEXT="Problem ID-&#xdc;bergabe" VSHIFT="14">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1538230525641" ID="ID_1999133642" MODIFIED="1538230536846" TEXT="wieder mal das Schei&#xdf; Interface-System">
+<icon BUILTIN="smiley-angry"/>
+</node>
+<node CREATED="1538230675997" ID="ID_1672501842" MODIFIED="1538232718759" TEXT="br&#xe4;uchte eine C-Repr&#xe4;sentation f&#xfc;r BareEntryID"/>
+<node CREATED="1538232816534" ID="ID_712541347" MODIFIED="1538232905703" TEXT="habe den Anspruch aber bereits aufgegeben">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und zwar an dem Punkt, an dem ich eine DiffMessage in das GUI schicke.
+    </p>
+    <p>
+      DiffMessage repr&#228;sentiert einen f&#252;r den User verdeckten Callback
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538234760471" ID="ID_1256781554" MODIFIED="1538234766447" TEXT="#1175 consider EntryID as external entity ID">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1534721762112" TEXT="verifizieren">
 <icon BUILTIN="full-6"/>
+<node COLOR="#338800" CREATED="1538234826126" ID="ID_1989018475" MODIFIED="1538234837334" TEXT="Round-Trip &#xfc;ber Thrad-Grenzen hinweg">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538234843916" ID="ID_1672079020" MODIFIED="1538234869369" TEXT="Argument-&#xdc;bergabe per Kopie">
+<icon BUILTIN="button_ok"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1537961523677" TEXT="Belegen der View">
 <icon BUILTIN="flag-yellow"/>
 </node>

From f97beaa7743efb42fbadf1ca0cca853c5fa914b0 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Sep 2018 19:04:27 +0200
Subject: [PATCH 117/178] GuiNotification: implementation complete (closes
 #1047)

The very backbone structure of the Lumiera UI, the UI-Bus is now fully defined
and proven to be operative, including asynchronous dispatch of messages
an a generic notification mechanism
---
 src/common/notification-interface-proxy.cpp |   2 +
 src/gui/ctrl/core-service.hpp               |   7 +
 src/gui/ctrl/facade.hpp                     |   4 +-
 src/gui/ctrl/notification-hub.hpp           |  14 +-
 src/gui/dialog/test-control.hpp             |  27 +-
 src/gui/model/controller.hpp                |   1 +
 src/gui/notification-service.cpp            |  68 +-
 src/gui/notification-service.hpp            |  14 +-
 src/gui/widget/error-log-display.hpp        |  38 +-
 src/include/gui-notification-facade.h       |   7 +-
 src/proc/cmd/meta-cmd.cpp                   |   6 +-
 wiki/thinkPad.ichthyo.mm                    | 984 +++++++++++---------
 12 files changed, 631 insertions(+), 541 deletions(-)

diff --git a/src/common/notification-interface-proxy.cpp b/src/common/notification-interface-proxy.cpp
index e6d1160f1..d767bdb31 100644
--- a/src/common/notification-interface-proxy.cpp
+++ b/src/common/notification-interface-proxy.cpp
@@ -42,6 +42,7 @@ namespace gui {
 namespace lumiera {
 namespace facade {
   using gui::ID;
+  using lib::diff::GenNode;
   using lib::diff::MutationMessage;
   
   
@@ -65,6 +66,7 @@ namespace facade {
       void displayInfo (Level level, string const& text) override  { _i_.displayInfo (level, cStr(text));   }
       void markError (ID uiElement,  string const& text) override  { _i_.markError(&uiElement, cStr(text)); }
       void markNote  (ID uiElement,  string const& text) override  { _i_.markNote (&uiElement, cStr(text)); }
+      void mark      (ID uiElement, GenNode&& stateMark) override  { _i_.mark     (&uiElement, &stateMark); }
       void mutate (ID uiElement, MutationMessage&& diff) override  { _i_.mutate   (&uiElement, &diff);      }
       void triggerGuiShutdown (string const& cause)      override  { _i_.triggerGuiShutdown (cStr(cause));  }
       
diff --git a/src/gui/ctrl/core-service.hpp b/src/gui/ctrl/core-service.hpp
index 8c23fc7b7..72b87e16d 100644
--- a/src/gui/ctrl/core-service.hpp
+++ b/src/gui/ctrl/core-service.hpp
@@ -39,6 +39,11 @@
  ** since both CoreService and Nexus are mutually interdependent from an
  ** operational perspective, since they exchange messages in both directions.
  ** 
+ ** In fact, the CoreService even _holds and thus manages_ the Nexus as a
+ ** private member, while the latter controls and connects all nodes attached
+ ** to the bus at runtime, including CoreService. This crisscross arrangement
+ ** ensures sane start-up and shutdown of the whole UI-Bus compound.
+ ** 
  ** ## Bus connection and topology
  ** The CoreService plays a central role within the UI, since it represents
  ** _»the application core«_ from the UI layer's viewpoint. But it is not
@@ -103,6 +108,8 @@ namespace ctrl{
    * handles those messages to be processed by centralised services:
    * - commands need to be sent down to Proc-Layer
    * - presentation state messages need to be recorded and acted upon.
+   * As an object, CoreService encases the heart of the UI-Bus, the
+   * \ref Nexus, and acts as "PImpl" for the gui::UiBus front-end.
    */
   class CoreService
     : public BusTerm
diff --git a/src/gui/ctrl/facade.hpp b/src/gui/ctrl/facade.hpp
index 6d6093d2d..ce4eafdf4 100644
--- a/src/gui/ctrl/facade.hpp
+++ b/src/gui/ctrl/facade.hpp
@@ -30,8 +30,8 @@
  ** 
  ** @note GTK operates single threaded by design.
  **       For this reason, any call from other parts of the application need to be explicitly
- **       dispatched into the UI event loop. The external facade interfaces are defined in a way
- **       to ensure this constraint is met.
+ **       dispatched into the UI event loop. The external façade interfaces are constructed
+ **       appropriately to ensure this constraint is regarded.
  ** 
  ** @see notification-service.hpp
  ** @see ui-manager.hpp
diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 96f64aa49..c380c29c7 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -120,7 +120,7 @@ namespace ctrl {
       virtual bool
       doMsg (string text)  override
         {
-          getWidget().addMsg (text);
+          getWidget().addInfo (text);
           return false; // logging is no persistent state
         }
       
@@ -136,7 +136,6 @@ namespace ctrl {
       doErr (string text)  override
         {
           getWidget().addError (text);
-          widget_->expand (true);
           return false;
         }
       
@@ -148,6 +147,17 @@ namespace ctrl {
           return false; // not persistent (sticky)
         }
       
+      /** adds special treatment for a state mark tagged as `"Warning"` */
+      virtual void
+      doMark (GenNode const& stateMark)  override
+        {
+          if (stateMark.idi.getSym() == "Warning")
+            getWidget().addWarn (stateMark.data.get<string>());
+          else
+            // forward to default handler
+            Controller::doMark (stateMark);
+        }
+      
       virtual void
       doFlash()  override
         {
diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index e9045c5cb..4a2796407 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -50,21 +50,12 @@
 #include "lib/nocopy.hpp"
 
 #include <utility>
-#include <string>  /////////TODO
+#include <string>
 
-#if true  /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 : WIP-WIP-WIP
-namespace proc {
-  namespace asset {
-    namespace meta {
-      class ErrorLog;
-      
-      extern lib::idi::EntryID<ErrorLog> theErrorLog_ID;
-} } }
-#endif    /////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 : WIP-WIP-WIP
 namespace gui {
 namespace dialog {
   
-  using std::string; ////////////TODO
+  using std::string;
   using std::forward;
   using lib::diff::GenNode;
   
@@ -93,7 +84,7 @@ namespace dialog {
       operator Gtk::Widget&() { return frame; }
       
       void
-      pack_start(Gtk::Widget& child, Gtk::PackOptions options = Gtk::PACK_EXPAND_WIDGET, guint padding = 0)
+      pack_start(Gtk::Widget& child, Gtk::PackOptions options =Gtk::PACK_EXPAND_WIDGET, guint padding =0)
         {
           box.pack_start (child, options, padding);
         }
@@ -148,7 +139,7 @@ namespace dialog {
   
   
   /**
-   * A complex, tabbed-notebook style non-modal dialog window,
+   * A complex, tabbed-notebook-style non-modal dialog window,
    * dedicated to development, diagnostics and experimentation.
    * The TestControl can be launched from Lumiera's "Help" menu,
    * offers an (passive, up-link) [UI-Bus connection](\ref ui-bus.hpp)
@@ -165,7 +156,7 @@ namespace dialog {
       
       /**
        * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
-       * This routine invokes the command 'xxx' down in Proc-Layer, passing the settings
+       * This routine invokes the command `test_meta_displayInfo` down in Proc-Layer, passing the settings
        * from the radio buttons to select the flavour of feedback, and the text for feedback content.
        * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
        * the ErrorLogDisplay within the InfoboxPanel.
@@ -271,14 +262,6 @@ namespace dialog {
               trig_4_.signal_clicked().connect(
                           [&]{ bus.act (model::commandMessage (proc::cmd::test_meta_markAction,  getActionID(), getContent())); });
             }
-          
-          void
-          demoGuiRoundtrip (Bus bus, string placeholder)
-            {
-              TODO ("collect command arguments and then send the command message for #1099");
-              ID errorLogID = proc::asset::meta::theErrorLog_ID;
-              bus.mark (errorLogID, GenNode{"Message", placeholder});
-            }
         };
       
       
diff --git a/src/gui/model/controller.hpp b/src/gui/model/controller.hpp
index 802c47d44..a6df8f52d 100644
--- a/src/gui/model/controller.hpp
+++ b/src/gui/model/controller.hpp
@@ -100,6 +100,7 @@ namespace model {
           UNIMPLEMENTED ("Controller doFlash");
         }
       
+    protected:
       /** default handler for all generic mark messages. Forwards to Tangible::doMark
        * @todo is there any default implementation for special messages,
        *       which might be eligible as a base class implementation??
diff --git a/src/gui/notification-service.cpp b/src/gui/notification-service.cpp
index 73251c88d..529a60449 100644
--- a/src/gui/notification-service.cpp
+++ b/src/gui/notification-service.cpp
@@ -32,13 +32,20 @@
  ** lifespan of this service instance must exceed the running of the event loop,
  ** since otherwise the event loop might invoke a lambda bound to the `this`
  ** pointer of a NotificationService already decommissioned. The setup of the
- ** standard Lumiera UI top-level context ensures this is the case, since the
+ ** standard Lumiera UI top-level context ensures these requirements, since the
  ** UiManager::performMainLoop() maintains the NotificationService instance
  ** and also performs the blocking `gtk_main()` call. Consequently, any
  ** invocation added from other threads after leaving the GTK main loop
  ** but before closing the GuiNotification facade will just be enqueued,
  ** but then dropped on destruction of the UiDispatcher PImpl.
  ** 
+ ** Beyond that dispatching functionality, the NotificationService
+ ** just serves as entry point to send messages through the [UI-Bus]
+ ** (\ref ui-bus.hpp) towards [UI elements](\ref tangible.hpp)
+ ** identified by EntryID. Even notifications and error messages
+ ** are handled this way, redirecting them toward a dedicated
+ ** [Log display](\ref error-log-display.hpp)
+ ** 
  ** @see ui-dispatcher.hpp
  ** 
  */
@@ -53,6 +60,7 @@
 #include "lib/diff/mutation-message.hpp"
 #include "lib/diff/gen-node.hpp"
 #include "include/logging.h"
+#include "lib/format-string.hpp"
 #include "lib/depend.hpp"
 #include "lib/util.hpp"
 
@@ -60,6 +68,7 @@ extern "C" {
 #include "common/interface-descriptor.h"
 }
 
+#include <utility>
 #include <string>
 
 
@@ -68,8 +77,11 @@ using lib::diff::TreeMutator;
 using lib::diff::MutationMessage;
 using gui::ctrl::UiDispatcher;
 using gui::ctrl::BusTerm;
-using std::string;
 using util::cStr;
+using util::_Fmt;
+
+using std::string;
+using std::move;
 
 
 namespace gui {
@@ -84,19 +96,29 @@ namespace gui {
   {
     dispatch_->event ([=]()
                       {
-                        this->mark (uiElement, uiMessage);
+                        ctrl::BusTerm::mark (uiElement, uiMessage);
                       });
   }
   
   
-  void 
+  void
   NotificationService::displayInfo (NotifyLevel severity, string const& text)
-  {
-    INFO (gui, "@GUI: display '%s' as notification message.", cStr(text));
-    ID errorLogID = interact::Wizard::getErrorLogID();
-    ////////////////////////TODO actually push the information to the GUI   ///////////////////////////////////TICKET #1102 : build a message display box in the UI
-                                                               ////////////////////////////////////////////////TICKET #1047 : as a temporary solution, use the InfoBox panel... 
-  }
+  {                                                                         ///////////////////////////////////TICKET #1102 : build a dedicated message display box in the UI
+    ID errorLogID = interact::Wizard::getErrorLogID();                     ////////////////////////////////////TICKET #1047 : as a temporary solution, use the InfoBox panel... 
+    switch (severity) {
+      case NOTE_ERROR:
+        markError (errorLogID, text);
+        break;
+      case NOTE_INFO:
+        markNote (errorLogID, text);
+        break;
+      case NOTE_WARN:
+        mark (errorLogID, GenNode{"Warning", text});
+        break;
+      default:
+        throw lumiera::error::Logic (_Fmt{"UI Notification with invalid severity %d encountered. "
+                                          "Given message text was '%s'"} % severity % text);
+    }  }
   
   
   void
@@ -107,18 +129,24 @@ namespace gui {
   
   
   void
-  NotificationService::markNote  (ID uiElement, string const& text)
+  NotificationService::markNote (ID uiElement, string const& text)
   {
     dispatchMsg (uiElement, GenNode{"Message", text});
   }
   
   
+  void
+  NotificationService::mark (ID uiElement, GenNode&& stateMarkMsg)
+  {
+    dispatchMsg (uiElement, move (stateMarkMsg));
+  }
+  
+  
   void
   NotificationService::mutate (ID uiElement, MutationMessage&& diff)
   {
-    dispatch_->event ([=]()                                                  //////////////////////////////////TODO care for error handling!!!
-                      {
-                        // apply and consume diff message stored within closure
+    dispatch_->event ([=]()
+                      { // apply and consume diff message stored within closure
                         this->change (uiElement, move(unConst(diff)));
                       });
   }
@@ -247,6 +275,14 @@ namespace gui {
                                                                  _instance().markNote (*static_cast<lib::idi::BareEntryID const*> (element), text);
                                                              }
                                                           )
+                               , LUMIERA_INTERFACE_INLINE (mark,
+                                                           void, (const void* element, void* stateMark),
+                                                             {
+                                                               if (!_instance) lumiera_error_set (LUMIERA_ERROR_LIFECYCLE, "passing state mark");
+                                                               else
+                                                                 _instance().mark   (*static_cast<lib::idi::BareEntryID const*> (element), move(*reinterpret_cast<GenNode*> (stateMark)));
+                                                             }
+                                                          )
                                , LUMIERA_INTERFACE_INLINE (mutate,
                                                            void, (const void* element, void* diff),
                                                              {
@@ -265,9 +301,7 @@ namespace gui {
                                                           )
                                );
     
-    
-    
-  } // (END) facade implementation details
+  } //(END) facade implementation details
   
   
   
diff --git a/src/gui/notification-service.hpp b/src/gui/notification-service.hpp
index 20ea60c9f..b3390fa5c 100644
--- a/src/gui/notification-service.hpp
+++ b/src/gui/notification-service.hpp
@@ -27,11 +27,12 @@
  ** events within the lower layers, or as result of invoking commands on the session.
  ** 
  ** This service is the implementation of a layer separation facade interface. Clients should use
- ** gui::GuiNotification#facade to access this service. This header defines the interface used
- ** to \em provide this service, not to access it.
- **
- ** @see gui::GuiFacade
- ** @see core-sevice.hpp starting this service
+ ** gui::GuiNotification#facade to access this service. This header here defines the interface
+ ** used to _provide_ this service, not to access it.
+ ** 
+ ** @see gui::GuiFacade launching the Lumiera UI
+ ** @see facade.hpp RAII holder to start this service and open the interface
+ ** @see gui::ctrl::UiManager::performMainLoop() exposes all UI façade interfaces
  */
 
 
@@ -100,10 +101,11 @@ namespace gui {
       void displayInfo (NotifyLevel,string const& text) override;
       void markError (ID uiElement, string const& text) override;
       void markNote  (ID uiElement, string const& text) override;
+      void mark      (ID uiElement, GenNode&&)          override;
       void mutate (ID uiElement, MutationMessage&&)     override;
       void triggerGuiShutdown (string const& cause)     override;
     };
-    
+  
   
   
 } // namespace gui
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index aba28a069..2d8361e46 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -152,9 +152,16 @@ namespace widget {
       /** just add normal information message to buffer,
        *  without special markup and without expanding the widget */
       void
-      addMsg (string text)
+      addInfo (string text)
         {
-          showMsg (NOTE_INFO, text);
+          addEntry (text);
+        }
+      
+      /** add an information message, formatted more prominent as warning */
+      void
+      addWarn (string text)
+        {
+          addEntry ("WARNING: "+text, TAG_WARN);
         }
       
       /** present an error notification prominently.
@@ -167,7 +174,10 @@ namespace widget {
       void
       addError (string text)
         {
-          showMsg (NOTE_ERROR, text);
+          errorMarks_.emplace_back(
+              addEntry ("ERROR: "+text, TAG_ERROR));
+          if (not expand.isExpanded())
+            expand (true);
         }
       
       void
@@ -202,7 +212,7 @@ namespace widget {
        * [GTKmm tutorial]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
        * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
        */
-      auto
+      Mark
       addEntry (string const& text, Literal markupTagName =nullptr)
         {
           auto buff = textLog_.get_buffer();
@@ -216,26 +226,6 @@ namespace widget {
           textLog_.scroll_to (cursor);
           return cursor;
         }
-      
-      void
-      showMsg (NotifyLevel severity, string const& text)
-        {
-          //////////////////////////////////////////////////TICKET #1102 : add formatting according to the error level
-          switch (severity) {
-            case NOTE_ERROR:
-                errorMarks_.emplace_back(
-                    addEntry ("ERROR: "+text, TAG_ERROR));
-                if (not expand.isExpanded())
-                  expand (true);
-              break;
-            case NOTE_WARN:
-                addEntry ("WARN: "+text, TAG_WARN);
-              break;
-            default:
-                addEntry (text);
-              break;
-          }
-        }
     };
   
   
diff --git a/src/include/gui-notification-facade.h b/src/include/gui-notification-facade.h
index 6babf13f7..2eca7f2bc 100644
--- a/src/include/gui-notification-facade.h
+++ b/src/include/gui-notification-facade.h
@@ -53,6 +53,7 @@
 namespace gui {
   
   using std::string;
+  using lib::diff::GenNode;
   using lib::diff::MutationMessage;
   
   using ID = lib::idi::BareEntryID const&;
@@ -69,7 +70,7 @@ namespace gui {
    * from the lower layers into the Lumiera GUI. Typically, this happens
    * asynchronously and triggered by events within the lower layers.
    * 
-   * This is a layer separation facade interface. Clients should use
+   * This is a layer separation façade interface. Clients should use
    * the embedded #facade factory, which yields a proxy routing any
    * calls through the lumieraorg_GuiNotification interface
    * @throws lumiera::error::State when interface is not opened
@@ -93,6 +94,9 @@ namespace gui {
       /** attach an warning or state information element */
       virtual void markNote  (ID uiElement, string const& text)  =0;
       
+      /** send a generic _state mark_ message to some element */
+      virtual void mark      (ID uiElement, GenNode&& stateMark) =0;
+      
       /** push a diff message up into the user interface.
        * @remark this is the intended way how to populate or
        *  manipulate the contents of the user interface from
@@ -131,6 +135,7 @@ LUMIERA_INTERFACE_DECLARE (lumieraorg_GuiNotification, 0,
                            LUMIERA_INTERFACE_SLOT (void, displayInfo,        (uint, const char*)),
                            LUMIERA_INTERFACE_SLOT (void, markError,          (const void*, const char*)),  ////////////TICKET #1175 : need a way to pass EntryID
                            LUMIERA_INTERFACE_SLOT (void, markNote,           (const void*, const char*)),
+                           LUMIERA_INTERFACE_SLOT (void, mark,               (const void*, void*)),
                            LUMIERA_INTERFACE_SLOT (void, mutate,             (const void*, void*)),
                            LUMIERA_INTERFACE_SLOT (void, triggerGuiShutdown, (const char*)),
 );
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 2369fda9b..6bed40e8c 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -40,9 +40,10 @@
 //#include "proc/mobject/session.hpp"
 #include "include/gui-notification-facade.h"
 #include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
-//#include "lib/symbol.hpp"
+#include "lib/diff/gen-node.hpp"
 #include "lib/idi/entry-id.hpp"
 #include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
+//#include "lib/symbol.hpp"
 
 #include <string>
 
@@ -53,6 +54,7 @@ using gui::NOTE_WARN;
 using gui::NOTE_ERROR;
 using gui::NotifyLevel;
 using gui::GuiNotification;
+using lib::diff::GenNode;
 //using util::cStr;
 using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 using std::string;
@@ -209,7 +211,7 @@ COMMAND_DEFINITION (test_meta_markAction)
     def.operation ([](string actionID, string message)
                       {
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
-                        UNIMPLEMENTED ("GuiNotification::facade().mark (errorLogID, actionID, message);");
+                        GuiNotification::facade().mark (errorLogID, GenNode{actionID, message});
                       })
        .captureUndo ([](string actionID, string message) -> string
                       {
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 70f4b52e4..7336c44ce 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -213,9 +213,9 @@
 <node CREATED="1481338465823" ID="ID_78520725" MODIFIED="1518487921041" TEXT="und zwar als PImpl"/>
 <node CREATED="1481338478069" ID="ID_406101846" MODIFIED="1518487921041" TEXT="und UI-Bus lebt im lokalen scope von GtkLumiera::main()"/>
 </node>
-<node CREATED="1481320759472" ID="ID_687951877" MODIFIED="1531419624076" TEXT="Interfaces &#xf6;ffnen">
+<node COLOR="#338800" CREATED="1481320759472" ID="ID_687951877" MODIFIED="1538263556139" TEXT="Interfaces &#xf6;ffnen">
 <linktarget COLOR="#effa97" DESTINATION="ID_687951877" ENDARROW="Default" ENDINCLINATION="-545;-1640;" ID="Arrow_ID_1500281313" SOURCE="ID_1022049727" STARTARROW="None" STARTINCLINATION="-189;37;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1481320765135" ID="ID_379585622" MODIFIED="1518487921041">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -329,7 +329,8 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484793113472" ID="ID_221612387" MODIFIED="1518487921042" TEXT="Lebenszyklus nochmal pr&#xfc;fen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1484797253856" FOLDED="true" ID="ID_226245696" MODIFIED="1537532327605" TEXT="GUI start sauber">
+<node COLOR="#338800" CREATED="1484797253856" FOLDED="true" ID="ID_226245696" MODIFIED="1538265606275" TEXT="GUI start sauber">
+<linktarget COLOR="#77c1c5" DESTINATION="ID_226245696" ENDARROW="Default" ENDINCLINATION="-1683;73;" ID="Arrow_ID_532646791" SOURCE="ID_1843835835" STARTARROW="None" STARTINCLINATION="3001;448;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1484797307376" ID="ID_842106541" MODIFIED="1518487921042" TEXT="Abfolge">
 <icon BUILTIN="info"/>
@@ -373,6 +374,10 @@
 <node CREATED="1501855040016" ID="ID_1016475327" MODIFIED="1518487921043" TEXT="erstellt Hautpfenster"/>
 <node CREATED="1501855050087" ID="ID_1167747758" MODIFIED="1533608413512" TEXT="startet Event-Loop">
 <node CREATED="1501855083654" ID="ID_207237338" MODIFIED="1518487921043" TEXT="uiManager.performMainLoop()"/>
+<node CREATED="1538264133989" ID="ID_310550142" MODIFIED="1538264468994" TEXT="installiert fa&#xe7;ade-Interfaces">
+<node CREATED="1484797620495" ID="ID_1710248767" MODIFIED="1538264159557" TEXT="NotificationService"/>
+<node CREATED="1538264160993" ID="ID_1729118785" MODIFIED="1538264171091" TEXT="DisplayService"/>
+</node>
 <node CREATED="1484797557383" ID="ID_637078214" MODIFIED="1518487921043" TEXT="Gtk-Kit::run()"/>
 </node>
 </node>
@@ -417,7 +422,7 @@
 </node>
 <node CREATED="1484797584483" ID="ID_1316050570" MODIFIED="1537532298858" TEXT="dieser hat Member ">
 <node CREATED="1484797623574" ID="ID_1754670675" MODIFIED="1518487921043" TEXT="Nexus"/>
-<node CREATED="1484797620495" ID="ID_1710248767" MODIFIED="1518487921043" TEXT="GuiNotificationService"/>
+<node CREATED="1538264091954" ID="ID_1287413267" MODIFIED="1538264093070" TEXT="StateManager"/>
 </node>
 </node>
 </node>
@@ -515,9 +520,36 @@
 <icon BUILTIN="yes"/>
 <node CREATED="1501859757091" ID="ID_1507399957" MODIFIED="1518487921045" TEXT="eigenen Callback schaffen"/>
 <node CREATED="1501859763155" ID="ID_428809729" MODIFIED="1518487921045" TEXT="generische Komponente schaffen?"/>
+<node CREATED="1538264423814" ID="ID_647239893" MODIFIED="1538264441631" TEXT="gel&#xf6;st durch Instantiieren des Facade-RAII-Objektes"/>
 </node>
 <node CREATED="1501858134796" ID="ID_1622427478" MODIFIED="1518487921045" TEXT="nachdem die UI-Loop l&#xe4;uft">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<node CREATED="1538264444419" ID="ID_1493499325" MODIFIED="1538264478613" TEXT="hier wechselseitige Abh&#xe4;ngigkeit">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1538264482902" ID="ID_838939814" MODIFIED="1538264538746" TEXT="Instantiiiere gui::ctrl::Facade im Stack-Frame von UiManager::performMainLoop()"/>
+<node CREATED="1538264545797" ID="ID_1760435858" MODIFIED="1538264730814" TEXT="Synchronisation qua Dispatch">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      zwar sind die Fasaden offen, bevor die Main-Loop l&#228;uft,
+    </p>
+    <p>
+      jedoch werden genau durch diese Fasaden alle Aktionen per Dispatch
+    </p>
+    <p>
+      in die GTK-Loop &#252;bertragen. Und das kann nur <i>in der Loop selber</i>&#160; passieren.
+    </p>
+    <p>
+      Ein zu fr&#252;her bzw. zu sp&#228;ter Aufruf <i>&quot;f&#228;llt einfach hinten runter&quot;</i>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
 </node>
 </node>
 </node>
@@ -589,8 +621,8 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1484797646771" HGAP="44" ID="ID_1605520996" MODIFIED="1518487921045" TEXT="Ausgestaltung" VSHIFT="10">
-<icon BUILTIN="pencil"/>
+<node COLOR="#435e98" CREATED="1484797646771" HGAP="44" ID="ID_1605520996" MODIFIED="1538263574976" TEXT="Ausgestaltung" VSHIFT="10">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1501859455212" ID="ID_751494565" MODIFIED="1518487921045" TEXT="Lebenszyklus">
 <node CREATED="1484797663121" ID="ID_134980216" MODIFIED="1518487921045" TEXT="braucht Bus-Connection">
 <icon BUILTIN="messagebox_warning"/>
@@ -859,38 +891,38 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1484797808349" HGAP="31" ID="ID_389264738" MODIFIED="1518487921048" STYLE="fork" TEXT="Notification-Funktionen" VSHIFT="11">
-<icon BUILTIN="flag-yellow"/>
-<node CREATED="1501854084264" HGAP="-42" ID="ID_1333991907" MODIFIED="1518487921048" TEXT="allgemein...." VSHIFT="-60">
+<node COLOR="#338800" CREATED="1484797808349" HGAP="31" ID="ID_389264738" MODIFIED="1538263470364" TEXT="Notification-Funktionen" VSHIFT="11">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1501854084264" HGAP="-42" ID="ID_1333991907" MODIFIED="1538263469663" TEXT="allgemein...." VSHIFT="-60">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1501854094710" ID="ID_1146157818" MODIFIED="1518487921048" TEXT="Synchronisation">
+<node CREATED="1501854094710" ID="ID_1146157818" MODIFIED="1538263469663" TEXT="Synchronisation">
 <arrowlink COLOR="#a75677" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="-317;-24;" ID="Arrow_ID_274836249" STARTARROW="None" STARTINCLINATION="-647;-66;"/>
 </node>
-<node CREATED="1501854114284" ID="ID_168912186" MODIFIED="1518487921048" TEXT="Lebenszyklus"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#01908b" CREATED="1502411488645" ID="ID_1875294174" MODIFIED="1531584909670" TEXT="Fehler im UI">
+<node CREATED="1501854114284" ID="ID_168912186" MODIFIED="1538263469663" TEXT="Lebenszyklus"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#01908b" CREATED="1502411488645" ID="ID_1875294174" MODIFIED="1538263469663" TEXT="Fehler im UI">
 <linktarget COLOR="#84b6b7" DESTINATION="ID_1875294174" ENDARROW="Default" ENDINCLINATION="1297;-64;" ID="Arrow_ID_245240331" SOURCE="ID_1177399909" STARTARROW="None" STARTINCLINATION="285;0;"/>
 <icon BUILTIN="yes"/>
-<node CREATED="1502411559060" ID="ID_1282973269" MODIFIED="1518487921048" TEXT="GTK nicht exception-safe">
+<node CREATED="1502411559060" ID="ID_1282973269" MODIFIED="1538263469663" TEXT="GTK nicht exception-safe">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1502411571690" ID="ID_878676751" MODIFIED="1518487921048" TEXT="aber was tun wenn....">
+<node CREATED="1502411571690" ID="ID_878676751" MODIFIED="1538263469663" TEXT="aber was tun wenn....">
 <icon BUILTIN="help"/>
-<node CREATED="1503444108091" ID="ID_725326352" MODIFIED="1518487921048" TEXT="loggen und weitermachen"/>
-<node CREATED="1503444117593" ID="ID_1115027114" MODIFIED="1531584945634" TEXT="loggen, Fehlerlog-Widget, weitermachen">
+<node CREATED="1503444108091" ID="ID_725326352" MODIFIED="1538263469663" TEXT="loggen und weitermachen"/>
+<node CREATED="1503444117593" ID="ID_1115027114" MODIFIED="1538263469663" TEXT="loggen, Fehlerlog-Widget, weitermachen">
 <icon BUILTIN="forward"/>
 </node>
-<node CREATED="1503444163706" ID="ID_577766875" MODIFIED="1518487921048" TEXT="UI-Reset"/>
-<node CREATED="1503444173752" ID="ID_65458957" MODIFIED="1518487921048" TEXT="(emergency)-shutdown"/>
+<node CREATED="1503444163706" ID="ID_577766875" MODIFIED="1538263469663" TEXT="UI-Reset"/>
+<node CREATED="1503444173752" ID="ID_65458957" MODIFIED="1538263469663" TEXT="(emergency)-shutdown"/>
 </node>
-<node CREATED="1502411595263" ID="ID_58102462" MODIFIED="1518487921048" TEXT="Fallunterscheidung">
-<node CREATED="1502411604054" ID="ID_1705249614" MODIFIED="1531584932146" TEXT="Fehler im Feedback/Notify harmlos">
+<node CREATED="1502411595263" ID="ID_58102462" MODIFIED="1538263469663" TEXT="Fallunterscheidung">
+<node CREATED="1502411604054" ID="ID_1705249614" MODIFIED="1538263469663" TEXT="Fehler im Feedback/Notify harmlos">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1502411612700" ID="ID_1951009863" MODIFIED="1531584540442" TEXT="Diff darf nicht scheitern">
-<node CREATED="1503670572980" ID="ID_599888416" MODIFIED="1518487921048" TEXT="einzige Ausnahme">
+<node CREATED="1502411612700" ID="ID_1951009863" MODIFIED="1538263469663" TEXT="Diff darf nicht scheitern">
+<node CREATED="1503670572980" ID="ID_599888416" MODIFIED="1538263469663" TEXT="einzige Ausnahme">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1503670585794" FOLDED="true" ID="ID_1806860698" MODIFIED="1533608416105" TEXT="speziellen Hanlder verwenden">
+<node CREATED="1503670585794" FOLDED="true" ID="ID_1806860698" MODIFIED="1538263469663" TEXT="speziellen Hanlder verwenden">
 <arrowlink COLOR="#6d8097" DESTINATION="ID_376091136" ENDARROW="Default" ENDINCLINATION="129;8;" ID="Arrow_ID_206696117" STARTARROW="None" STARTINCLINATION="147;13;"/>
 <icon BUILTIN="yes"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203543467" FOLDED="true" ID="ID_285166941" MODIFIED="1533608415749" TEXT="TODO">
@@ -905,14 +937,14 @@
 </node>
 </node>
 </node>
-<node CREATED="1503443968096" ID="ID_986919353" MODIFIED="1518487921048" TEXT="Implementierungs-Muster">
-<node CREATED="1503443979619" ID="ID_1673104600" MODIFIED="1518487921048" TEXT="jedes einzelne Lambda in Fehlerhandler wrappen">
+<node CREATED="1503443968096" ID="ID_986919353" MODIFIED="1538263469663" TEXT="Implementierungs-Muster">
+<node CREATED="1503443979619" ID="ID_1673104600" MODIFIED="1538263469663" TEXT="jedes einzelne Lambda in Fehlerhandler wrappen">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1503443999616" ID="ID_601042478" MODIFIED="1518487921048" TEXT="generischer Fehlerhandler im Invocation-Lambda">
+<node CREATED="1503443999616" ID="ID_601042478" MODIFIED="1538263469663" TEXT="generischer Fehlerhandler im Invocation-Lambda">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1503670528386" ID="ID_376091136" MODIFIED="1518487921048" TEXT="generischer Chain-Fehlerhandler">
+<node CREATED="1503670528386" ID="ID_376091136" MODIFIED="1538263469663" TEXT="generischer Chain-Fehlerhandler">
 <arrowlink COLOR="#5e6d7f" DESTINATION="ID_1933339677" ENDARROW="Default" ENDINCLINATION="201;-32;" ID="Arrow_ID_1887448672" STARTARROW="None" STARTINCLINATION="-44;52;"/>
 <linktarget COLOR="#6d8097" DESTINATION="ID_376091136" ENDARROW="Default" ENDINCLINATION="129;8;" ID="Arrow_ID_206696117" SOURCE="ID_1806860698" STARTARROW="None" STARTINCLINATION="147;13;"/>
 <icon BUILTIN="button_ok"/>
@@ -920,24 +952,24 @@
 </node>
 </node>
 </node>
-<node CREATED="1484797813373" ID="ID_536855363" MODIFIED="1518487921048" TEXT="generische Nachricht"/>
-<node CREATED="1484797818780" ID="ID_354397333" MODIFIED="1518487921048" TEXT="state mark">
+<node CREATED="1484797813373" ID="ID_536855363" MODIFIED="1538263469663" TEXT="generische Nachricht"/>
+<node CREATED="1484797818780" ID="ID_354397333" MODIFIED="1538263469663" TEXT="state mark">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1484877574046" ID="ID_251939815" MODIFIED="1518487921049" TEXT="Error">
+<node COLOR="#338800" CREATED="1484877574046" ID="ID_251939815" MODIFIED="1538263469663" TEXT="Error">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1484877577550" ID="ID_258243919" MODIFIED="1518487921049" TEXT="Note">
+<node COLOR="#338800" CREATED="1484877577550" ID="ID_258243919" MODIFIED="1538263469663" TEXT="Note">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203488690" ID="ID_149796171" MODIFIED="1537532525240" TEXT="Fehlermeldungen">
+<node COLOR="#338800" CREATED="1504203488690" ID="ID_149796171" MODIFIED="1538263469663" TEXT="Fehlermeldungen">
 <linktarget COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" SOURCE="ID_821848615" STARTARROW="None" STARTINCLINATION="1509;156;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203497529" ID="ID_1933339677" MODIFIED="1531585056392" TEXT="#1102 brauche Fehlerlog-Widget">
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203497529" ID="ID_1933339677" MODIFIED="1538263469663" TEXT="#1102 brauche Fehlerlog-Widget">
 <linktarget COLOR="#5e6d7f" DESTINATION="ID_1933339677" ENDARROW="Default" ENDINCLINATION="201;-32;" ID="Arrow_ID_1887448672" SOURCE="ID_376091136" STARTARROW="None" STARTINCLINATION="-44;52;"/>
 <icon BUILTIN="bell"/>
-<node CREATED="1504203643550" ID="ID_764647453" MODIFIED="1518487921049" TEXT="via InteractionDirector ansprechen"/>
-<node CREATED="1504203694423" ID="ID_812129962" MODIFIED="1518487921049">
+<node CREATED="1504203643550" ID="ID_764647453" MODIFIED="1538263469663" TEXT="via InteractionDirector ansprechen"/>
+<node CREATED="1504203694423" ID="ID_812129962" MODIFIED="1538263469663">
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@@ -950,38 +982,38 @@
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+<node CREATED="1533688453675" ID="ID_528918224" MODIFIED="1538263469663" TEXT="l&#xe4;ngerfristige L&#xf6;sung">
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-<node CREATED="1533688504805" ID="ID_882148786" MODIFIED="1533688519238" TEXT="welches dann in das Infobox-Panel platziert wird"/>
+<node CREATED="1533688464386" ID="ID_1583348838" MODIFIED="1538263469663" TEXT="Wizard erzeugt NotificationController"/>
+<node CREATED="1533688486631" ID="ID_1186891962" MODIFIED="1538263469664" TEXT="dieser alloziert bei Bedarf ein Anzeige-Widget"/>
+<node CREATED="1533688504805" ID="ID_882148786" MODIFIED="1538263469664" TEXT="welches dann in das Infobox-Panel platziert wird"/>
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-<node COLOR="#338800" CREATED="1502401930856" ID="ID_634125084" MODIFIED="1518487921049" TEXT="#1066 concept how to hand over diff messages">
+<node COLOR="#338800" CREATED="1502401930856" ID="ID_634125084" MODIFIED="1538263469664" TEXT="#1066 concept how to hand over diff messages">
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+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502410099141" ID="ID_1388523431" MODIFIED="1538263469664" TEXT="unn&#xf6;tig: zwei Abstraktions-Typen">
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+<node CREATED="1502410126058" ID="ID_30550435" MODIFIED="1538263469664" TEXT="MutationMessage"/>
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+<node CREATED="1502410149463" ID="ID_1909971032" MODIFIED="1538263469664" TEXT="Entscheidung f&#xfc;r DiffMessage">
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-<node CREATED="1502599993338" ID="ID_1306432135" MODIFIED="1518487921049" TEXT="abstrahierter Iterator">
+<node CREATED="1502599977964" ID="ID_249258988" MODIFIED="1538263469664" TEXT="ist das bessere Konzept"/>
+<node CREATED="1502599993338" ID="ID_1306432135" MODIFIED="1538263469664" TEXT="abstrahierter Iterator">
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+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502600004168" ID="ID_1865027243" MODIFIED="1538263469664" TEXT="aber Name &#xbb;MutationMessage&#xab; beibehalten">
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-<node COLOR="#338800" CREATED="1502410165980" ID="ID_1450795292" MODIFIED="1518487921049" TEXT="MutationMessage entfernen">
+<node COLOR="#338800" CREATED="1502410165980" ID="ID_1450795292" MODIFIED="1538263469664" TEXT="MutationMessage entfernen">
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-<node CREATED="1502410176619" ID="ID_1188430411" MODIFIED="1518487921049" TEXT="AbstractTangible_test umschreiben"/>
-<node CREATED="1502410190737" ID="ID_1036564813" MODIFIED="1518487921049" TEXT="operator string() in DiffMessage &#xfc;bernehmen">
+<node CREATED="1502410176619" ID="ID_1188430411" MODIFIED="1538263469664" TEXT="AbstractTangible_test umschreiben"/>
+<node CREATED="1502410190737" ID="ID_1036564813" MODIFIED="1538263469664" TEXT="operator string() in DiffMessage &#xfc;bernehmen">
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@@ -1002,34 +1034,34 @@
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-<node CREATED="1502410351284" ID="ID_845679527" MODIFIED="1518487921050" TEXT="BusTerm-API &#xe4;ndern"/>
+<node CREATED="1502410328279" ID="ID_1577461232" MODIFIED="1538263469664" TEXT="Tree-Diff-Aplikator direkt in Nexus verschieben"/>
+<node CREATED="1502410351284" ID="ID_845679527" MODIFIED="1538263469664" TEXT="BusTerm-API &#xe4;ndern"/>
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-<node CREATED="1502410738992" ID="ID_1626925051" MODIFIED="1518487921050" TEXT="direkt in den Nexus verschieben">
+<node CREATED="1484799660822" ID="ID_1288003894" MODIFIED="1538263469664" TEXT="TreeMutator binden">
+<node CREATED="1502410730274" ID="ID_1631270974" MODIFIED="1538263469664" TEXT="passiert bisher in MutationMessage"/>
+<node CREATED="1502410738992" ID="ID_1626925051" MODIFIED="1538263469664" TEXT="direkt in den Nexus verschieben">
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+<node CREATED="1484877585605" ID="ID_101718446" MODIFIED="1538263469664" TEXT="verwende MutationMessage">
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+<node CREATED="1502401956093" ID="ID_322700967" MODIFIED="1538263469664" TEXT="MutationMessage von DiffMessage erzeugen">
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+<node CREATED="1502454601603" ID="ID_384770680" MODIFIED="1538263469664" TEXT="nein: MutationMessage wird &#xfc;berfl&#xfc;ssig">
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+<node CREATED="1502401987033" ID="ID_1584846573" MODIFIED="1538263469664" TEXT="erfordert Festlegung der Natur der Diff Message">
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-<node CREATED="1502402004383" ID="ID_1491065212" MODIFIED="1518487921050" TEXT="generisch bleiben?">
+<node CREATED="1502402004383" ID="ID_1491065212" MODIFIED="1538263469664" TEXT="generisch bleiben?">
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+<node CREATED="1502402012558" ID="ID_1846096533" MODIFIED="1538263469664" TEXT="IterSource verwenden">
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+<node CREATED="1502402691844" FOLDED="true" ID="ID_286774751" MODIFIED="1538263469664" TEXT="Diskussion">
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@@ -1081,7 +1113,7 @@
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+<node CREATED="1502402701106" FOLDED="true" ID="ID_510901772" MODIFIED="1538263469664" TEXT="Abw&#xe4;gung">
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@@ -1135,15 +1167,15 @@
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-<node CREATED="1502403145431" ID="ID_636092614" MODIFIED="1518487921051" TEXT="DiffMessage ist selber der Iterator">
+<node CREATED="1502403145431" ID="ID_636092614" MODIFIED="1538263469664" TEXT="DiffMessage ist selber der Iterator">
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-<node CREATED="1484877658891" ID="ID_1855662071" MODIFIED="1518487921051" TEXT="Vorsicht: Storage / GUI-Thread">
+<node CREATED="1484877658891" ID="ID_1855662071" MODIFIED="1538263469664" TEXT="Vorsicht: Storage / GUI-Thread">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1484877696486" ID="ID_476867583" MODIFIED="1518487921051" TEXT="wir m&#xfc;ssen jede Aktion in den Event-Thread &#xfc;bergeben"/>
-<node CREATED="1484877711388" ID="ID_407918505" MODIFIED="1518487921052">
+<node CREATED="1484877696486" ID="ID_476867583" MODIFIED="1538263469664" TEXT="wir m&#xfc;ssen jede Aktion in den Event-Thread &#xfc;bergeben"/>
+<node CREATED="1484877711388" ID="ID_407918505" MODIFIED="1538263469664">
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@@ -1155,7 +1187,7 @@
   </body>
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+<node CREATED="1484877731337" ID="ID_1859059266" MODIFIED="1538263469664">
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@@ -1167,7 +1199,7 @@
   </body>
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+<node CREATED="1484877743992" ID="ID_680582075" MODIFIED="1538263469664">
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@@ -1180,34 +1212,34 @@
 </html></richcontent>
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+<node CREATED="1502459182214" ID="ID_1601884743" MODIFIED="1538263469665" TEXT="MutationMessage wird &#xfc;berfl&#xfc;ssig">
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-<node CREATED="1502459190477" ID="ID_102437369" MODIFIED="1518487921052" TEXT="DiffMessage &#xfc;bernimmt deren Rolle">
+<node CREATED="1502459190477" ID="ID_102437369" MODIFIED="1538263469665" TEXT="DiffMessage &#xfc;bernimmt deren Rolle">
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-<node COLOR="#338800" CREATED="1502459198611" ID="ID_1739527989" MODIFIED="1518487921052" TEXT="aber DiffMessage wird umbenannt in MutationMessage">
+<node COLOR="#338800" CREATED="1502459198611" ID="ID_1739527989" MODIFIED="1538263469665" TEXT="aber DiffMessage wird umbenannt in MutationMessage">
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+<node COLOR="#338800" CREATED="1493753249399" HGAP="75" ID="ID_1023343635" MODIFIED="1538263469665" TEXT="#1098 hand-over in UI-Thread" VSHIFT="61">
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-<node CREATED="1501850614630" ID="ID_196299293" MODIFIED="1518487921052" TEXT="emit() -&gt; event im UI-Thread"/>
+<node CREATED="1501804992301" ID="ID_1647263044" MODIFIED="1538263469665" TEXT="schedule event"/>
+<node CREATED="1501804985286" ID="ID_320977714" MODIFIED="1538263469665" TEXT="GTK-Mechanismus">
+<node CREATED="1501850591393" ID="ID_1831316800" MODIFIED="1538263469665" TEXT="Glib::Dispatcher"/>
+<node CREATED="1501850603736" ID="ID_1030340631" MODIFIED="1538263469665" TEXT="im UI-Thread erzeugen und binden"/>
+<node CREATED="1501850614630" ID="ID_196299293" MODIFIED="1538263469665" TEXT="emit() -&gt; event im UI-Thread"/>
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-<node COLOR="#435e98" CREATED="1501850632636" ID="ID_431682708" MODIFIED="1533608413531" TEXT="technische Probleme">
+<node COLOR="#435e98" CREATED="1501850632636" ID="ID_431682708" MODIFIED="1538263469665" TEXT="technische Probleme">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1501850684373" ID="ID_1688212376" MODIFIED="1518487921052" TEXT="ein Dispatcher pro Call">
+<node CREATED="1501850684373" ID="ID_1688212376" MODIFIED="1538263469665" TEXT="ein Dispatcher pro Call">
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@@ -1221,16 +1253,16 @@
     </p>
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 </html></richcontent>
-<node CREATED="1501850754827" ID="ID_314216229" MODIFIED="1518487921052" TEXT="jede Facade-Funktion brauch einen Dispatcher">
+<node CREATED="1501850754827" ID="ID_314216229" MODIFIED="1538263469665" TEXT="jede Facade-Funktion brauch einen Dispatcher">
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-<node CREATED="1501850880179" ID="ID_745997733" MODIFIED="1518487921053" TEXT="m&#xf6;gliche contention-Probleme"/>
+<node CREATED="1501850863525" ID="ID_1439490807" MODIFIED="1538263469665" TEXT="das wird eine Menge"/>
+<node CREATED="1501850867597" ID="ID_141225152" MODIFIED="1538263469665" TEXT="alle Dispatcher haben eine gemeinsame Queue"/>
+<node CREATED="1501850880179" ID="ID_745997733" MODIFIED="1538263469665" TEXT="m&#xf6;gliche contention-Probleme"/>
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-<node CREATED="1501850933596" ID="ID_620574396" MODIFIED="1518487921053">
+<node CREATED="1501850690748" ID="ID_1995715844" MODIFIED="1538263469665" TEXT="Erzeugen der Dispatcher">
+<node CREATED="1501850920950" ID="ID_1529426036" MODIFIED="1538263469665" TEXT="mu&#xdf; im UI-Thread erfolgen"/>
+<node CREATED="1501850933596" ID="ID_620574396" MODIFIED="1538263469665">
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@@ -1243,9 +1275,9 @@
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-<node CREATED="1501850734414" ID="ID_994424125" MODIFIED="1518487921053">
+<node CREATED="1501850677790" ID="ID_1195250454" MODIFIED="1538263469665" TEXT="Argument&#xfc;bergabe">
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@@ -1257,7 +1289,7 @@
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@@ -1275,7 +1307,7 @@
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@@ -1287,31 +1319,31 @@
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-<node COLOR="#338800" CREATED="1501938776839" ID="ID_1031878628" MODIFIED="1533608413533" TEXT="Convenience-Wrapper">
+<node COLOR="#338800" CREATED="1501938776839" ID="ID_1031878628" MODIFIED="1538263469666" TEXT="Convenience-Wrapper">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1501939110138" ID="ID_203135379" MODIFIED="1518487921054" TEXT="Lambda konstruieren">
+<node CREATED="1501939110138" ID="ID_203135379" MODIFIED="1538263469666" TEXT="Lambda konstruieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1501939132431" ID="ID_1400757157" MODIFIED="1518487921054" TEXT="Funktion zum Triggern">
+<node CREATED="1501939132431" ID="ID_1400757157" MODIFIED="1538263469666" TEXT="Funktion zum Triggern">
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 </node>
-<node CREATED="1501939149837" ID="ID_1733976265" MODIFIED="1518487921054" TEXT="diese an Glib::Dispatcher binden">
+<node CREATED="1501939149837" ID="ID_1733976265" MODIFIED="1538263469666" TEXT="diese an Glib::Dispatcher binden">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1502404797300" ID="ID_1177399909" MODIFIED="1533608413533" TEXT="Exceptions fangen">
+<node CREATED="1502404797300" ID="ID_1177399909" MODIFIED="1538263469666" TEXT="Exceptions fangen">
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1522935881957" HGAP="23" ID="ID_564244010" MODIFIED="1522935939206" TEXT="4/2018 was ist hier der Stand" VSHIFT="16">
+<node COLOR="#435e98" CREATED="1522935881957" HGAP="23" ID="ID_564244010" MODIFIED="1538263469666" TEXT="4/2018 was ist hier der Stand?" VSHIFT="16">
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@@ -1330,7 +1362,7 @@
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531584775498" ID="ID_1901801971" MODIFIED="1537532231352" TEXT="7/2018 notification-Display fehlt noch">
+<node COLOR="#435e98" CREATED="1531584775498" ID="ID_1901801971" MODIFIED="1538263469666" TEXT="7/2018 notification-Display fehlt noch">
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@@ -1344,29 +1376,55 @@
     </p>
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+<linktarget COLOR="#22ed6f" DESTINATION="ID_1901801971" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1609281182" SOURCE="ID_1545300987" STARTARROW="None" STARTINCLINATION="83;-25;"/>
+<icon BUILTIN="yes"/>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538263118645" ID="ID_944384957" MODIFIED="1538263469666" TEXT="9/2018 hinreichend behandelt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Habe nochmal alle Aufrufe im Einzelnen durchgepr&#252;ft
+    </p>
+    <ul>
+      <li>
+        wenn schon das Einf&#252;gen des Funktors vor dem Dispatch wirft (out of memory),<br />dann bekommt der Aufrufer diese Exception, was typischerweise t&#246;dlich ist.<br />
+      </li>
+      <li>
+        aber alles, was <i>innerhalb</i>&#160;dieses Funktors passiert, wird abgefangen und geloggt.<br />
+      </li>
+    </ul>
+    <p>
+      mehr erscheint mir nicht sinnvoll; <i>behandeln</i>&#160;kann man solche Fehler ohnehin nicht.<br /><br />
+    </p>
+  </body>
+</html>
+</richcontent>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
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-<node COLOR="#338800" CREATED="1501939174506" ID="ID_504999068" MODIFIED="1533608413534" TEXT="in NotificationService integrieren">
+<node COLOR="#338800" CREATED="1501939174506" ID="ID_504999068" MODIFIED="1538263469666" TEXT="in NotificationService integrieren">
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+<node CREATED="1502375098210" ID="ID_581509556" MODIFIED="1538263469666" STYLE="fork" TEXT="als PImpl">
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-<node CREATED="1502375146395" ID="ID_144811928" MODIFIED="1518487921054" TEXT="CallQueue einrichten">
+<node CREATED="1502375146395" ID="ID_144811928" MODIFIED="1538263469666" TEXT="CallQueue einrichten">
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-<node CREATED="1502375120551" ID="ID_1281399419" MODIFIED="1518487921054" TEXT="Glib::Dispatcher verwenden">
+<node CREATED="1502375120551" ID="ID_1281399419" MODIFIED="1538263469666" TEXT="Glib::Dispatcher verwenden">
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 </node>
-<node CREATED="1502375134501" ID="ID_1011463592" MODIFIED="1531584426150" STYLE="fork" TEXT="Aufrufe in Lamdas verpacken">
+<node CREATED="1502375134501" ID="ID_1011463592" MODIFIED="1538263469666" STYLE="fork" TEXT="Aufrufe in Lamdas verpacken">
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 </node>
-<node COLOR="#338800" CREATED="1502375294344" ID="ID_640199096" MODIFIED="1533608413535" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
+<node COLOR="#338800" CREATED="1502375294344" ID="ID_640199096" MODIFIED="1538263469666" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1502375312469" ID="ID_1075926054" MODIFIED="1518487921054" TEXT="ironischerweise...">
+<node CREATED="1502375312469" ID="ID_1075926054" MODIFIED="1538263469666" TEXT="ironischerweise...">
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@@ -1384,9 +1442,9 @@
   </body>
 </html></richcontent>
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-<node CREATED="1502390322659" ID="ID_194166182" MODIFIED="1533608413536" TEXT="den neuen Dispatcher nutzen?">
+<node CREATED="1502390322659" ID="ID_194166182" MODIFIED="1538263469666" TEXT="den neuen Dispatcher nutzen?">
 <icon BUILTIN="help"/>
-<node CREATED="1502390340193" FOLDED="true" ID="ID_1491902996" MODIFIED="1533608416111" TEXT="Con">
+<node CREATED="1502390340193" FOLDED="true" ID="ID_1491902996" MODIFIED="1538263469666" TEXT="Con">
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@@ -1419,46 +1477,46 @@
 </html></richcontent>
 </node>
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-<node CREATED="1502390334890" FOLDED="true" ID="ID_1454460947" MODIFIED="1533608416113" TEXT="Pro">
+<node CREATED="1502390334890" FOLDED="true" ID="ID_1454460947" MODIFIED="1538263469666" TEXT="Pro">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502390463664" ID="ID_1786963429" MODIFIED="1518487921054" TEXT="einfach zu implementieren"/>
 <node CREATED="1502390473567" ID="ID_1776620772" MODIFIED="1518487921054" TEXT="alle Glib::Dispatcher nutzen die gleiche Pipe"/>
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-<node CREATED="1502390583289" ID="ID_741614829" MODIFIED="1518487921054" TEXT="an die UI-Nachrichtenbox">
+<node CREATED="1502390572106" ID="ID_1872668444" MODIFIED="1538263469666" TEXT="zus&#xe4;tzlich noch eine Benachrichtigung">
+<node CREATED="1502390583289" ID="ID_741614829" MODIFIED="1538263469666" TEXT="an die UI-Nachrichtenbox">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1502390886681" ID="ID_985994192" MODIFIED="1518487921054" TEXT="f&#xfc;hre Benachrichtiguns-Level ein">
+<node CREATED="1502390886681" ID="ID_985994192" MODIFIED="1538263469666" TEXT="f&#xfc;hre Benachrichtiguns-Level ein">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502390603674" ID="ID_125356908" MODIFIED="1518487921054" TEXT="#1102 : build a message display box in the UI">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502390603674" ID="ID_125356908" MODIFIED="1538263469666" TEXT="#1102 : build a message display box in the UI">
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 </node>
 </node>
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+<node CREATED="1501939193031" HGAP="3" ID="ID_1045913810" MODIFIED="1538263469666" TEXT="Test" VSHIFT="20">
 <icon BUILTIN="bell"/>
-<node COLOR="#338800" CREATED="1501939204166" ID="ID_383444966" MODIFIED="1533608413539" TEXT="CallQueue_test">
+<node COLOR="#338800" CREATED="1501939204166" ID="ID_383444966" MODIFIED="1538263469666" TEXT="CallQueue_test">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1501946847700" ID="ID_1917302142" MODIFIED="1518487921054" TEXT="basic">
+<node COLOR="#338800" CREATED="1501946847700" ID="ID_1917302142" MODIFIED="1538263469666" TEXT="basic">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1501946852555" ID="ID_1617455971" MODIFIED="1518487921054" TEXT="mehrere">
+<node COLOR="#338800" CREATED="1501946852555" ID="ID_1617455971" MODIFIED="1538263469666" TEXT="mehrere">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1501946856587" ID="ID_1780067399" MODIFIED="1518487921054" TEXT="Stre&#xdf;">
+<node COLOR="#338800" CREATED="1501946856587" ID="ID_1780067399" MODIFIED="1538263469666" TEXT="Stre&#xdf;">
 <icon BUILTIN="button_ok"/>
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1535892210892" TEXT="#1099 DemoGuiRoundtrip">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1538263469666" TEXT="#1099 DemoGuiRoundtrip">
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 <icon BUILTIN="pencil"/>
-<node CREATED="1501939235834" FOLDED="true" ID="ID_1160414548" MODIFIED="1533608416114" TEXT="Men&#xfc;-Eintrag">
+<node CREATED="1501939235834" FOLDED="true" ID="ID_1160414548" MODIFIED="1538263469666" TEXT="Men&#xfc;-Eintrag">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402935579" ID="ID_263665767" MODIFIED="1533402958273" TEXT="erst mal Bang!-Button verwenden">
 <icon BUILTIN="flag-yellow"/>
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@@ -1466,13 +1524,13 @@
 <icon BUILTIN="yes"/>
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-<node CREATED="1501939240217" ID="ID_325602880" MODIFIED="1518487921054" TEXT="triggert Proc-Command"/>
-<node CREATED="1501939252991" ID="ID_31140909" MODIFIED="1518487921054" TEXT="dieses sendet Mark zur&#xfc;ck"/>
-<node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1533608441262" TEXT="ein Widget im UI reagiert">
-<node COLOR="#338800" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1534508533795" TEXT="fest verdrahtete ID">
+<node CREATED="1501939240217" ID="ID_325602880" MODIFIED="1538263469667" TEXT="triggert Proc-Command"/>
+<node CREATED="1501939252991" ID="ID_31140909" MODIFIED="1538263469667" TEXT="dieses sendet Mark zur&#xfc;ck"/>
+<node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1538263469667" TEXT="ein Widget im UI reagiert">
+<node COLOR="#338800" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1538263469667" TEXT="fest verdrahtete ID">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1533688905326" ID="ID_709974587" MODIFIED="1533688913192" TEXT="geh&#xf6;rt dem NotificationController"/>
-<node CREATED="1533688913996" ID="ID_33570780" MODIFIED="1533688928765">
+<node CREATED="1533688905326" ID="ID_709974587" MODIFIED="1538263469667" TEXT="geh&#xf6;rt dem NotificationController"/>
+<node CREATED="1533688913996" ID="ID_33570780" MODIFIED="1538263469667">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -1485,13 +1543,13 @@
 </html></richcontent>
 <icon BUILTIN="yes"/>
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-<node CREATED="1533688935962" ID="ID_1996006263" MODIFIED="1533688943780" TEXT="NotificationController">
-<node CREATED="1533688944816" ID="ID_1273458647" MODIFIED="1533688952787" TEXT="wird vom Wizard gemanagt"/>
-<node CREATED="1533688953399" ID="ID_1850034653" MODIFIED="1533915641929" TEXT="belegt ein Display-widget">
+<node CREATED="1533688935962" ID="ID_1996006263" MODIFIED="1538263469667" TEXT="NotificationController">
+<node CREATED="1533688944816" ID="ID_1273458647" MODIFIED="1538263469667" TEXT="wird vom Wizard gemanagt"/>
+<node CREATED="1533688953399" ID="ID_1850034653" MODIFIED="1538263469667" TEXT="belegt ein Display-widget">
 <arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
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-<node COLOR="#338800" CREATED="1533771813324" FOLDED="true" ID="ID_930319427" MODIFIED="1534508530448" TEXT="wo ist die ID selber definiert">
+<node COLOR="#338800" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1538263758857" TEXT="wo ist die ID selber definiert">
 <icon BUILTIN="help"/>
 <node CREATED="1533911116328" ID="ID_1079600246" MODIFIED="1533911128764" TEXT="sie mu&#xdf; insgesamt reprouzierbar sein"/>
 <node CREATED="1533911129424" ID="ID_659618402" MODIFIED="1533911139946" TEXT="zumindest innerhalb einer Program-Ausf&#xfc;hrung"/>
@@ -1499,7 +1557,7 @@
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 <node CREATED="1533911919814" ID="ID_558535868" MODIFIED="1533911928937" TEXT="welches Interface?">
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-<node CREATED="1533915343891" FOLDED="true" ID="ID_1650034681" MODIFIED="1533915518726" TEXT="Nebengedanke: pa&#xdf;t der Name?">
+<node CREATED="1533915343891" ID="ID_1650034681" MODIFIED="1538263771121" TEXT="Nebengedanke: pa&#xdf;t der Name?">
 <icon BUILTIN="button_ok"/>
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 <icon BUILTIN="button_cancel"/>
@@ -1515,6 +1573,9 @@
 <node CREATED="1533915407171" ID="ID_728064464" MODIFIED="1533915412457" TEXT="GuiReaction">
 <icon BUILTIN="idea"/>
 </node>
+<node CREATED="1538263882239" ID="ID_1273122422" MODIFIED="1538263888584" TEXT="GuiResponse">
+<icon BUILTIN="idea"/>
+</node>
 <node CREATED="1533915454893" ID="ID_877610316" MODIFIED="1533915459256" TEXT="der Name ist ad&#xe4;quat">
 <node CREATED="1533915472186" ID="ID_1748932158" MODIFIED="1533915479325" TEXT="GuiFeedback w&#xfc;rde auch gehen"/>
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@@ -1607,11 +1668,11 @@
 </node>
 </node>
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-<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1535647887424" TEXT="mi&#xdf;brauche InfoBox">
+<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1538263469667" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
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 <icon BUILTIN="idea"/>
-<node COLOR="#338800" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1534527069860" TEXT="neues Dock(Panel)">
+<node COLOR="#338800" CREATED="1504200974955" FOLDED="true" ID="ID_1182589184" MODIFIED="1538263469667" TEXT="neues Dock(Panel)">
 <icon BUILTIN="button_ok"/>
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 <richcontent TYPE="NOTE"><html>
@@ -1699,26 +1760,26 @@
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+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850824341" ID="ID_1234148559" MODIFIED="1538263469667" TEXT="vorl&#xe4;ufiges Grid-Layout">
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 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850841673" ID="ID_375492094" MODIFIED="1534850857117" TEXT="ParentView-Interface">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850841673" ID="ID_375492094" MODIFIED="1538263469667" TEXT="ParentView-Interface">
 <icon BUILTIN="flag-yellow"/>
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-<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1534527104730" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
+<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1538263469667" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
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 <icon BUILTIN="forward"/>
-<node CREATED="1504203746239" ID="ID_697660682" MODIFIED="1518487921054" TEXT="Scroll-Pane">
+<node CREATED="1504203746239" ID="ID_697660682" MODIFIED="1538263469667" TEXT="Scroll-Pane">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1504203749815" ID="ID_1057483680" MODIFIED="1534508696960" STYLE="fork" TEXT="Textanzeige-Box">
+<node CREATED="1504203749815" ID="ID_1057483680" MODIFIED="1538263469667" STYLE="fork" TEXT="Textanzeige-Box">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1504215911647" ID="ID_1066629131" MODIFIED="1518487921054" TEXT="GtkTextView"/>
-<node CREATED="1504215958961" ID="ID_55797578" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-formatting" MODIFIED="1518487921054" TEXT="Formattierung">
+<node CREATED="1504215911647" ID="ID_1066629131" MODIFIED="1538263469667" TEXT="GtkTextView"/>
+<node CREATED="1504215958961" ID="ID_55797578" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-formatting" MODIFIED="1538263469667" TEXT="Formattierung">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1537661820926" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
+<node CREATED="1504219859389" FOLDED="true" ID="ID_653669269" MODIFIED="1538263469667" TEXT="Scrollen zum zuletzt eingef&#xfc;gten Text">
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 <icon BUILTIN="idea"/>
 <node CREATED="1504220139416" ID="ID_1997485219" MODIFIED="1518487921054" TEXT="scroll_to(iterator) funktioniert nicht">
@@ -1728,22 +1789,22 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1504216221389" ID="ID_355253225" MODIFIED="1534508698470" TEXT="Marks">
-<node CREATED="1504216224349" ID="ID_1372118244" MODIFIED="1518487921054" TEXT="was ist die &quot;insert&quot;-Mark?">
+<node CREATED="1504216221389" ID="ID_355253225" MODIFIED="1538263469667" TEXT="Marks">
+<node CREATED="1504216224349" ID="ID_1372118244" MODIFIED="1538263469667" TEXT="was ist die &quot;insert&quot;-Mark?">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1504219835536" ID="ID_1720205947" MODIFIED="1518487921054" TEXT="der Text-Cursor">
+<node CREATED="1504219835536" ID="ID_1720205947" MODIFIED="1538263469667" TEXT="der Text-Cursor">
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
-<node CREATED="1504203763606" ID="ID_877984616" MODIFIED="1518487921054" TEXT="in ein Widget verpacken">
+<node CREATED="1504203763606" ID="ID_877984616" MODIFIED="1538263469667" TEXT="in ein Widget verpacken">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1537754756867" TEXT="Fehler-Level erkennen">
+<node COLOR="#338800" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1538263469667" TEXT="Fehler-Level erkennen">
 <arrowlink DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537754684692" HGAP="65" ID="ID_494305022" MODIFIED="1537754798372" TEXT="Rolle im API kl&#xe4;ren" VSHIFT="-12">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537754684692" HGAP="65" ID="ID_494305022" MODIFIED="1538263469667" TEXT="Rolle im API kl&#xe4;ren" VSHIFT="-12">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1756,25 +1817,24 @@
       w&#228;re es nicht sinnvoller, sie direkt auf das API zu heben?
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1535752292770" TEXT="Operationen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1538263469667" TEXT="Operationen">
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1535752255561" TEXT="expand">
+<node COLOR="#338800" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1538263469667" TEXT="expand">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1535631557024" TEXT="collapsed-Repr&#xe4;sentation schaffen">
+<node COLOR="#338800" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1538263469667" TEXT="collapsed-Repr&#xe4;sentation schaffen">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1535554610295" ID="ID_1050608842" MODIFIED="1535554619117" TEXT="nur vorl&#xe4;ufige L&#xf6;sung">
+<node CREATED="1535554610295" ID="ID_1050608842" MODIFIED="1538263469668" TEXT="nur vorl&#xe4;ufige L&#xf6;sung">
 <icon BUILTIN="yes"/>
 </node>
-<node COLOR="#435e98" CREATED="1535629564615" ID="ID_1047933726" MODIFIED="1535630651685" TEXT="Gtk::Expander">
+<node COLOR="#435e98" CREATED="1535629564615" ID="ID_1047933726" MODIFIED="1538263469668" TEXT="Gtk::Expander">
 <arrowlink COLOR="#4561ae" DESTINATION="ID_1889724128" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_219393455" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <icon BUILTIN="idea"/>
-<node CREATED="1535557111546" ID="ID_649935976" MODIFIED="1535557120786" TEXT="Label-Text als ctor param"/>
-<node CREATED="1535557122205" ID="ID_1034248466" MODIFIED="1535557176171" TEXT="resize_toplevel (=true by default)">
+<node CREATED="1535557111546" ID="ID_649935976" MODIFIED="1538263469668" TEXT="Label-Text als ctor param"/>
+<node CREATED="1535557122205" ID="ID_1034248466" MODIFIED="1538263469668" TEXT="resize_toplevel (=true by default)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1787,19 +1847,19 @@
 </html></richcontent>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1535563193014" FOLDED="true" ID="ID_1551506828" MODIFIED="1535630371536" TEXT="Problem: dehnt sich nicht aus">
+<node COLOR="#990000" CREATED="1535563193014" FOLDED="true" ID="ID_1551506828" MODIFIED="1538263469668" TEXT="Problem: dehnt sich nicht aus">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1535563256725" ID="ID_327777357" MODIFIED="1535563288805" TEXT="scrolled pane belegt nur minimal notwendigen Platz"/>
 <node CREATED="1535563300695" ID="ID_862867674" MODIFIED="1535563311905" TEXT="egal ob initial zugeklappt (=default) oder aufgeklappt"/>
 <node CREATED="1535563317214" ID="ID_201611533" MODIFIED="1535563330839" TEXT="egal in welcher Reihenfolge man es hinzuf&#xfc;gt"/>
 <node CREATED="1535563334050" ID="ID_718726647" MODIFIED="1535563366331" TEXT="dagegen direkt im Frame dehnt sie sich aus"/>
 </node>
-<node COLOR="#338800" CREATED="1535629564615" ID="ID_228360739" MODIFIED="1537576458081" TEXT="L&#xf6;sung: Widget::property_expand()">
+<node COLOR="#338800" CREATED="1535629564615" ID="ID_228360739" MODIFIED="1538263469668" TEXT="L&#xf6;sung: Widget::property_expand()">
 <arrowlink COLOR="#6277b2" DESTINATION="ID_860094095" ENDARROW="Default" ENDINCLINATION="-1778;-100;" ID="Arrow_ID_761942436" STARTARROW="None" STARTINCLINATION="-6486;0;"/>
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1535752092225" TEXT="essentiell: passiert im Parent-Widget">
+<node COLOR="#435e98" CREATED="1535554640586" ID="ID_1376241476" MODIFIED="1538263469668" TEXT="essentiell: passiert im Parent-Widget">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1810,15 +1870,15 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1535731317069" TEXT="Design-Problem: sich expandieren">
+<node COLOR="#338800" CREATED="1535634032601" ID="ID_964641889" MODIFIED="1538263469668" TEXT="Design-Problem: sich expandieren">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1535634126600" TEXT="Voraussetzung: unser Widget-Protokoll">
-<node CREATED="1535634127852" ID="ID_317106359" MODIFIED="1535634136126" TEXT="enth&#xe4;lt eine expand()-Methode"/>
-<node CREATED="1535636097808" ID="ID_1540209936" MODIFIED="1535636109795" TEXT="Unterschied Widget / Controller ?">
+<node CREATED="1535634116925" ID="ID_1129948550" MODIFIED="1538263469668" TEXT="Voraussetzung: unser Widget-Protokoll">
+<node CREATED="1535634127852" ID="ID_317106359" MODIFIED="1538263469668" TEXT="enth&#xe4;lt eine expand()-Methode"/>
+<node CREATED="1535636097808" ID="ID_1540209936" MODIFIED="1538263469668" TEXT="Unterschied Widget / Controller ?">
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1535636169439" FOLDED="true" ID="ID_631287309" MODIFIED="1535731360335" TEXT="zwei Modelle denkbar">
+<node CREATED="1535636169439" FOLDED="true" ID="ID_631287309" MODIFIED="1538263469668" TEXT="zwei Modelle denkbar">
 <icon BUILTIN="yes"/>
 <node CREATED="1535636219312" ID="ID_1940674226" MODIFIED="1535636242077" TEXT="Widget ist Expander">
 <icon BUILTIN="full-1"/>
@@ -1925,150 +1985,150 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1535731363267" ID="ID_603236457" MODIFIED="1535731485315" TEXT="L&#xf6;sung">
+<node COLOR="#435e98" CREATED="1535731363267" ID="ID_603236457" MODIFIED="1538263469668" TEXT="L&#xf6;sung">
 <arrowlink COLOR="#5f8cc1" DESTINATION="ID_447101734" ENDARROW="Default" ENDINCLINATION="22;-23;" ID="Arrow_ID_272345450" STARTARROW="None" STARTINCLINATION="-97;-5;"/>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#435e98" CREATED="1535731373978" ID="ID_182280315" MODIFIED="1535731492690" TEXT="Widget h&#xe4;lt einen Expander-Funktor"/>
-<node CREATED="1535731402126" ID="ID_1177558244" MODIFIED="1535731498221" TEXT="damit ist eine Standard-Impl von Tangible::doExpand() m&#xf6;glich">
+<node COLOR="#435e98" CREATED="1535731373978" ID="ID_182280315" MODIFIED="1538263469668" TEXT="Widget h&#xe4;lt einen Expander-Funktor"/>
+<node CREATED="1535731402126" ID="ID_1177558244" MODIFIED="1538263469668" TEXT="damit ist eine Standard-Impl von Tangible::doExpand() m&#xf6;glich">
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1535737874447" TEXT="Adapter-Interfaces entwerfen">
+<node COLOR="#338800" CREATED="1535638412517" ID="ID_447101734" MODIFIED="1538263469668" TEXT="Adapter-Interfaces entwerfen">
 <arrowlink COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
 <linktarget COLOR="#5f8cc1" DESTINATION="ID_447101734" ENDARROW="Default" ENDINCLINATION="22;-23;" ID="Arrow_ID_272345450" SOURCE="ID_603236457" STARTARROW="None" STARTINCLINATION="-97;-5;"/>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535725900392" ID="ID_489679545" MODIFIED="1535737870629" TEXT="Expander">
+<node COLOR="#338800" CREATED="1535725900392" ID="ID_489679545" MODIFIED="1538263469668" TEXT="Expander">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535725906647" ID="ID_1380126396" MODIFIED="1535737872678" TEXT="Revealer">
+<node COLOR="#338800" CREATED="1535725906647" ID="ID_1380126396" MODIFIED="1538263469668" TEXT="Revealer">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1535743677411" TEXT="default-Impl doExpand()">
+<node COLOR="#338800" CREATED="1535726065753" ID="ID_578786610" MODIFIED="1538263469668" TEXT="default-Impl doExpand()">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535726077504" ID="ID_1806068721" MODIFIED="1535743682618" TEXT="pr&#xfc;fen: canExpand">
+<node COLOR="#338800" CREATED="1535726077504" ID="ID_1806068721" MODIFIED="1538263469668" TEXT="pr&#xfc;fen: canExpand">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535726086631" ID="ID_1753268128" MODIFIED="1535743684443" TEXT="Expander aufrufen">
+<node COLOR="#338800" CREATED="1535726086631" ID="ID_1753268128" MODIFIED="1538263469668" TEXT="Expander aufrufen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535743810027" ID="ID_778321095" MODIFIED="1535743836008" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
+<node COLOR="#338800" CREATED="1535743810027" ID="ID_778321095" MODIFIED="1538263469668" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1535752076020" TEXT="Expander geeignet verdrahten">
+<node COLOR="#338800" CREATED="1535725923421" ID="ID_298871659" MODIFIED="1538263469668" TEXT="Expander geeignet verdrahten">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#435e98" CREATED="1535725940226" ID="ID_162482468" MODIFIED="1535750016792" TEXT="validiert das Design">
+<node COLOR="#435e98" CREATED="1535725940226" ID="ID_162482468" MODIFIED="1538263469668" TEXT="validiert das Design">
 <icon BUILTIN="yes"/>
 </node>
-<node COLOR="#338800" CREATED="1535743705113" ID="ID_54369760" MODIFIED="1535749999498" TEXT="auch MockElm anpassen">
+<node COLOR="#338800" CREATED="1535743705113" ID="ID_54369760" MODIFIED="1538263469668" TEXT="auch MockElm anpassen">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1535750031727" TEXT="Unit-Test">
+<node COLOR="#338800" CREATED="1535737902126" ID="ID_1001984094" MODIFIED="1538263469668" TEXT="Unit-Test">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1535750033829" ID="ID_1808097547" MODIFIED="1535750109787" TEXT="AbstractTangible_test::markState()">
+<node CREATED="1535750033829" ID="ID_1808097547" MODIFIED="1538263469668" TEXT="AbstractTangible_test::markState()">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1535750110787" ID="ID_1169665466" MODIFIED="1535750125766" TEXT="tested implizit die neue default-Implementierung mit">
+<node CREATED="1535750110787" ID="ID_1169665466" MODIFIED="1538263469668" TEXT="tested implizit die neue default-Implementierung mit">
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1534725412673" TEXT="clearAll">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1538263469668" TEXT="clearAll">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1537533467539" TEXT="addMsg">
+<node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1538263469668" TEXT="addMsg">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1537754649532" TEXT="addError">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1538263469668" TEXT="addError">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1537572046781" TEXT="spezieller Markup">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1538263469668" TEXT="spezieller Markup">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" SOURCE="ID_580465154" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="flag-yellow"/>
-<node COLOR="#338800" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1537754555384" TEXT="Tags anlegen">
+<node COLOR="#338800" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1538263469668" TEXT="Tags anlegen">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1537571926822" TEXT="k&#xe4;ren: CSS?">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1538263469668" TEXT="k&#xe4;ren: CSS?">
 <icon BUILTIN="help"/>
-<node COLOR="#435e98" CREATED="1535629564615" HGAP="43" ID="ID_1432671260" MODIFIED="1537576577055" TEXT="GTK-Styling, CSS f&#xfc;r Custom-Widgets" VSHIFT="-35">
+<node COLOR="#435e98" CREATED="1535629564615" HGAP="43" ID="ID_1432671260" MODIFIED="1538263469668" TEXT="GTK-Styling, CSS f&#xfc;r Custom-Widgets" VSHIFT="-35">
 <arrowlink COLOR="#6277b2" DESTINATION="ID_1174884362" ENDARROW="Default" ENDINCLINATION="-2315;-45;" ID="Arrow_ID_380937946" STARTARROW="None" STARTINCLINATION="-7413;0;"/>
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1537661752104" ID="ID_373027917" MODIFIED="1537661763482" TEXT="wohl nicht so einfach"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1537661786205" TEXT="Untersuchen per Inspector">
+<node CREATED="1537661752104" ID="ID_373027917" MODIFIED="1538263469668" TEXT="wohl nicht so einfach"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1538263469668" TEXT="Untersuchen per Inspector">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node COLOR="#338800" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1537754544278" TEXT="vorl&#xe4;ufig hart verdrahten">
+<node COLOR="#338800" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1538263469668" TEXT="vorl&#xe4;ufig hart verdrahten">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537752420235" ID="ID_922959985" MODIFIED="1537752432342" TEXT="Funktion zum Populieren der Tag-Table"/>
-<node CREATED="1537752434280" ID="ID_1053927695" MODIFIED="1537752468330" TEXT="k&#xf6;nnte in den StyleManager wandern">
+<node CREATED="1537752420235" ID="ID_922959985" MODIFIED="1538263469668" TEXT="Funktion zum Populieren der Tag-Table"/>
+<node CREATED="1537752434280" ID="ID_1053927695" MODIFIED="1538263469669" TEXT="k&#xf6;nnte in den StyleManager wandern">
 <arrowlink COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" STARTARROW="None" STARTINCLINATION="-17;39;"/>
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1537752455019" TEXT="Style-Manager vorsehen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1538263469669" TEXT="Style-Manager vorsehen">
 <arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
-<linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <linktarget COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" SOURCE="ID_1053927695" STARTARROW="None" STARTINCLINATION="-17;39;"/>
+<linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1537754539816" TEXT="Tag f&#xfc;r Warnung">
+<node COLOR="#338800" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1538263469669" TEXT="Tag f&#xfc;r Warnung">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1537752476750" TEXT="Tag f&#xfc;r Fehler">
+<node COLOR="#338800" CREATED="1537571934143" ID="ID_447258227" MODIFIED="1538263469669" TEXT="Tag f&#xfc;r Fehler">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1537754568804" TEXT="Tags zuweisen">
+<node COLOR="#338800" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1538263469669" TEXT="Tags zuweisen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1537754595581" TEXT="Tags entfernen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1538263469669" TEXT="Tags entfernen">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" SOURCE="ID_383201596" STARTARROW="None" STARTINCLINATION="294;-15;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1537754628081" TEXT="Bookmark speichern">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1538263469669" TEXT="Bookmark speichern">
 <icon BUILTIN="pencil"/>
-<node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1537571978137" TEXT="Technologie">
+<node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1538263469669" TEXT="Technologie">
 <icon BUILTIN="info"/>
-<node CREATED="1537535925874" ID="ID_196796680" MODIFIED="1537535937395" TEXT="Tag / TagTable">
+<node CREATED="1537535925874" ID="ID_196796680" MODIFIED="1538263469669" TEXT="Tag / TagTable">
 <icon BUILTIN="button_cancel"/>
-<node CREATED="1537535939265" ID="ID_1176049085" MODIFIED="1537535942940" TEXT="geht nicht"/>
-<node CREATED="1537535943840" ID="ID_694044876" MODIFIED="1537535949979" TEXT="man kann nicht nach Tags suchen"/>
-<node CREATED="1537536772568" ID="ID_332685872" MODIFIED="1537536780459" TEXT="(Suchen kann man auf dem Iterator)"/>
+<node CREATED="1537535939265" ID="ID_1176049085" MODIFIED="1538263469669" TEXT="geht nicht"/>
+<node CREATED="1537535943840" ID="ID_694044876" MODIFIED="1538263469669" TEXT="man kann nicht nach Tags suchen"/>
+<node CREATED="1537536772568" ID="ID_332685872" MODIFIED="1538263469669" TEXT="(Suchen kann man auf dem Iterator)"/>
 </node>
-<node CREATED="1537536783583" ID="ID_883754303" MODIFIED="1537536847824" TEXT="Mark verwenden">
+<node CREATED="1537536783583" ID="ID_883754303" MODIFIED="1538263469669" TEXT="Mark verwenden">
 <icon BUILTIN="forward"/>
-<node CREATED="1537536791477" ID="ID_1332288045" MODIFIED="1537536806687" TEXT="mu&#xdf; Index daf&#xfc;r selber pflegen"/>
-<node CREATED="1537536808627" ID="ID_609351839" MODIFIED="1537536816686" TEXT="kann dann direkt zur Mark springen"/>
-<node CREATED="1537536819657" ID="ID_1987418184" MODIFIED="1537536840621" TEXT="wird durch Edits/Insterts nicht gest&#xf6;rt">
+<node CREATED="1537536791477" ID="ID_1332288045" MODIFIED="1538263469669" TEXT="mu&#xdf; Index daf&#xfc;r selber pflegen"/>
+<node CREATED="1537536808627" ID="ID_609351839" MODIFIED="1538263469669" TEXT="kann dann direkt zur Mark springen"/>
+<node CREATED="1537536819657" ID="ID_1987418184" MODIFIED="1538263469669" TEXT="wird durch Edits/Insterts nicht gest&#xf6;rt">
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537571771685" ID="ID_1198199438" MODIFIED="1537754632532" TEXT="ErrorIndex">
+<node COLOR="#338800" CREATED="1537571771685" ID="ID_1198199438" MODIFIED="1538263469669" TEXT="ErrorIndex">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1537754634178" TEXT="einf&#xfc;gen">
+<node COLOR="#338800" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1538263469669" TEXT="einf&#xfc;gen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1537571889438" TEXT="reorganisieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1538263469669" TEXT="reorganisieren">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
-<node CREATED="1537537333987" ID="ID_667263409" MODIFIED="1537537337615" TEXT="&#xdc;bersicht">
-<node CREATED="1537537339011" ID="ID_1759202815" MODIFIED="1537537343849" TEXT="L&#xf6;sung">
+<node CREATED="1537537333987" ID="ID_667263409" MODIFIED="1538263469669" TEXT="&#xdc;bersicht">
+<node CREATED="1537537339011" ID="ID_1759202815" MODIFIED="1538263469669" TEXT="L&#xf6;sung">
 <icon BUILTIN="help"/>
-<node CREATED="1537537345410" ID="ID_1560200040" MODIFIED="1537537351912" TEXT="Toolbar verwenden?">
+<node CREATED="1537537345410" ID="ID_1560200040" MODIFIED="1538263469669" TEXT="Toolbar verwenden?">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1537537353105" ID="ID_409330854" MODIFIED="1537537361078" TEXT="ButtonBox verwenden?">
+<node CREATED="1537537353105" ID="ID_409330854" MODIFIED="1538263469669" TEXT="ButtonBox verwenden?">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1537571223088" ID="ID_1186576760" MODIFIED="1537571237818" TEXT="erst mal gar nicht">
+<node CREATED="1537571223088" ID="ID_1186576760" MODIFIED="1538263469669" TEXT="erst mal gar nicht">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2078,119 +2138,118 @@
       YAGNI
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571240500" ID="ID_1601115005" MODIFIED="1537572170448" TEXT="nur &gt;&gt; (n&#xe4;chster Fehler)">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571240500" ID="ID_1601115005" MODIFIED="1538263469669" TEXT="nur &gt;&gt; (n&#xe4;chster Fehler)">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1537571669683" ID="ID_196982892" MODIFIED="1537571676509" TEXT="wenn es Fehler gibt"/>
-<node CREATED="1537571681249" ID="ID_1273769655" MODIFIED="1537571717760" TEXT="wenn es mehr Zeilen gibt"/>
+<node CREATED="1537571669683" ID="ID_196982892" MODIFIED="1538263469669" TEXT="wenn es Fehler gibt"/>
+<node CREATED="1537571681249" ID="ID_1273769655" MODIFIED="1538263469669" TEXT="wenn es mehr Zeilen gibt"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572133580" ID="ID_671753441" MODIFIED="1537572167345" TEXT="Button: clear Errors">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572133580" ID="ID_671753441" MODIFIED="1538263469669" TEXT="Button: clear Errors">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572142139" ID="ID_1644572130" MODIFIED="1537572166537" TEXT="Button: clear all">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572142139" ID="ID_1644572130" MODIFIED="1538263469669" TEXT="Button: clear all">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1537754856503" TEXT="addWarning">
+<node COLOR="#338800" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1538263469669" TEXT="addWarning">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1537754858082" TEXT="nur speziell ausgezeichnete Meldung">
+<node COLOR="#338800" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1538263469669" TEXT="nur speziell ausgezeichnete Meldung">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1534725674269" TEXT="clearInfoMsg">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1538263469669" TEXT="clearInfoMsg">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725716254" ID="ID_1648079400" MODIFIED="1534725735604" TEXT="Fehler-Texte beiseite Speichern">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725716254" ID="ID_1648079400" MODIFIED="1538263469669" TEXT="Fehler-Texte beiseite Speichern">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725675884" ID="ID_1549487041" MODIFIED="1534725711920" TEXT="Textbuffer leeren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725675884" ID="ID_1549487041" MODIFIED="1538263469669" TEXT="Textbuffer leeren">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725690450" ID="ID_314460083" MODIFIED="1534725710992" TEXT="Fehler-Bookmarks erneut einsetzen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725690450" ID="ID_314460083" MODIFIED="1538263469669" TEXT="Fehler-Bookmarks erneut einsetzen">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1534725672469" TEXT="turnError_into_InfoMsg">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1538263469669" TEXT="turnError_into_InfoMsg">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1537754595581" TEXT="Markup reduzieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1538263469669" TEXT="Markup reduzieren">
 <arrowlink DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" STARTARROW="None" STARTINCLINATION="294;-15;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1534725593152" TEXT="Bookmarks entfernen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1538263469669" TEXT="Bookmarks entfernen">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1534725302600" TEXT="triggerFlash">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1538263469669" TEXT="triggerFlash">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1534725298760" TEXT="farbigen Rahmen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1538263469669" TEXT="farbigen Rahmen">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1537752365219" TEXT="vorl&#xe4;ufig feste Farbe">
+<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1538263469670" TEXT="vorl&#xe4;ufig feste Farbe">
 <arrowlink COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1534725297672" TEXT="timeout setzen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1538263469670" TEXT="timeout setzen">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1535756110798" TEXT="revealYourself">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1538263469670" TEXT="revealYourself">
 <linktarget COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1535756045754" TEXT="default-Impl doReveal()">
+<node COLOR="#338800" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1538263469670" TEXT="default-Impl doReveal()">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1535756048350" TEXT="pr&#xfc;fen canReveal">
+<node COLOR="#338800" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1538263469670" TEXT="pr&#xfc;fen canReveal">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1535756052676" TEXT="Revealer aufrufen">
+<node COLOR="#338800" CREATED="1535726053483" ID="ID_628118697" MODIFIED="1538263469670" TEXT="Revealer aufrufen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535743810027" ID="ID_1786165843" MODIFIED="1535756056057" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
+<node COLOR="#338800" CREATED="1535743810027" ID="ID_1786165843" MODIFIED="1538263469670" TEXT="bestehende default-Impl aus Widget/Controller entfernen">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1535725975155" TEXT="braucht Parent-Link">
+<node CREATED="1534722062911" ID="ID_1134044414" MODIFIED="1538263469670" TEXT="braucht Parent-Link">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1535725979353" TEXT="parent.reveal(this)">
+<node CREATED="1534722073526" ID="ID_1428186731" MODIFIED="1538263469670" TEXT="parent.reveal(this)">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node COLOR="#338800" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1535756066541" TEXT="Revealer geeignet verdrahten">
+<node COLOR="#338800" CREATED="1535725982021" ID="ID_858097581" MODIFIED="1538263469670" TEXT="Revealer geeignet verdrahten">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535743705113" ID="ID_267884906" MODIFIED="1535756061190" TEXT="auch MockElm anpassen">
+<node COLOR="#338800" CREATED="1535743705113" ID="ID_267884906" MODIFIED="1538263469670" TEXT="auch MockElm anpassen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535743754227" ID="ID_1964115972" MODIFIED="1535756064674" TEXT="doReveal(ID) API entfernen">
+<node COLOR="#338800" CREATED="1535743754227" ID="ID_1964115972" MODIFIED="1538263469670" TEXT="doReveal(ID) API entfernen">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1537320236780" TEXT="Unit-Test: AbtractTangible_test erweitern">
+<node COLOR="#338800" CREATED="1535737911365" ID="ID_79619425" MODIFIED="1538263469670" TEXT="Unit-Test: AbtractTangible_test erweitern">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1535815055702" ID="ID_493114230" MODIFIED="1537320233912" TEXT="EventLog: Problem mit Backtracking">
+<node COLOR="#338800" CREATED="1535815055702" ID="ID_493114230" MODIFIED="1538263469670" TEXT="EventLog: Problem mit Backtracking">
 <arrowlink COLOR="#80b3ba" DESTINATION="ID_1041148737" ENDARROW="Default" ENDINCLINATION="-1705;-7489;" ID="Arrow_ID_1257144480" STARTARROW="None" STARTINCLINATION="838;114;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537320168170" ID="ID_1213843922" MODIFIED="1537320180729" TEXT="danach l&#xe4;&#xdf;t sich die gew&#xfc;nschte Log-Bedingung formulieren">
+<node COLOR="#338800" CREATED="1537320168170" ID="ID_1213843922" MODIFIED="1538263469670" TEXT="danach l&#xe4;&#xdf;t sich die gew&#xfc;nschte Log-Bedingung formulieren">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1537459860078" TEXT="konkret was machen, damit man die Funktion sehen kann">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1538263469670" TEXT="konkret was machen, damit man die Funktion sehen kann">
 <linktarget COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" SOURCE="ID_1726008784" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 <icon BUILTIN="flag-pink"/>
-<node CREATED="1537461362558" ID="ID_1738911844" MODIFIED="1537461379041" TEXT="Idee: ggfs minimiertes DockItem wiederherstellen">
+<node CREATED="1537461362558" ID="ID_1738911844" MODIFIED="1538263469670" TEXT="Idee: ggfs minimiertes DockItem wiederherstellen">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1537499243954" ID="ID_971802810" MODIFIED="1537499360773" TEXT="versuche mal Panel::show(true)">
+<node CREATED="1537499243954" ID="ID_971802810" MODIFIED="1538263469670" TEXT="versuche mal Panel::show(true)">
 <icon BUILTIN="help"/>
-<node COLOR="#338800" CREATED="1537499275630" ID="ID_1288942046" MODIFIED="1537499354292" TEXT="verdrahtet in den Revealer">
+<node COLOR="#338800" CREATED="1537499275630" ID="ID_1288942046" MODIFIED="1538263469670" TEXT="verdrahtet in den Revealer">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537499313305" ID="ID_1086105877" MODIFIED="1537499333065" TEXT="von ErrorLogDisplay"/>
-<node CREATED="1537499333798" ID="ID_57237574" MODIFIED="1537499352071" TEXT="verdrahtet in InfoboxPanel::getLog()"/>
+<node CREATED="1537499313305" ID="ID_1086105877" MODIFIED="1538263469670" TEXT="von ErrorLogDisplay"/>
+<node CREATED="1537499333798" ID="ID_57237574" MODIFIED="1538263469670" TEXT="verdrahtet in InfoboxPanel::getLog()"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537499267335" ID="ID_608745909" MODIFIED="1537499372012" TEXT="keine Ahnung ob das was bewirkt">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537499267335" ID="ID_608745909" MODIFIED="1538263469670" TEXT="keine Ahnung ob das was bewirkt">
 <icon BUILTIN="bell"/>
 </node>
 </node>
@@ -2198,19 +2257,19 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1522936276561" TEXT="Bang! -Button">
+<node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1538263469670" TEXT="Bang! -Button">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689031860" ID="ID_657232437" MODIFIED="1537532001855" TEXT="Implementierung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689031860" ID="ID_657232437" MODIFIED="1538263469670" TEXT="Implementierung">
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1533689046050" ID="ID_32330448" MODIFIED="1533689051525" TEXT="ErrorLog-Widget">
+<node COLOR="#338800" CREATED="1533689046050" ID="ID_32330448" MODIFIED="1538263469670" TEXT="ErrorLog-Widget">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1533689061409" TEXT="InfoboxPanel anlegen">
+<node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1538263469670" TEXT="InfoboxPanel anlegen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1534523190695" FOLDED="true" ID="ID_1941760302" MODIFIED="1534527439233" TEXT="ErrorLog bei Bedarf belegen">
+<node COLOR="#338800" CREATED="1534523190695" FOLDED="true" ID="ID_1941760302" MODIFIED="1538263469670" TEXT="ErrorLog bei Bedarf belegen">
 <arrowlink COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" STARTARROW="None" STARTINCLINATION="-4;127;"/>
 <linktarget COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" SOURCE="ID_329149746" STARTARROW="None" STARTINCLINATION="670;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -2231,11 +2290,11 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1538013202439" TEXT="NotificationController im Wizzard ansiedeln">
+<node COLOR="#435e98" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1538263469670" TEXT="NotificationController im Wizzard ansiedeln">
 <icon BUILTIN="full-1"/>
-<node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1533768810140" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
+<node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1538263469670" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
 <icon BUILTIN="help"/>
-<node CREATED="1533768892227" ID="ID_1131924142" MODIFIED="1533768930833" TEXT="ja, macht Sinn">
+<node CREATED="1533768892227" ID="ID_1131924142" MODIFIED="1538263469670" TEXT="ja, macht Sinn">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2250,7 +2309,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1533771786813">
+<node CREATED="1533768930822" ID="ID_1792377980" MODIFIED="1538263469670">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -2264,43 +2323,43 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1533769126436" ID="ID_1000961938" MODIFIED="1533771781272" TEXT="wohin?">
+<node CREATED="1533769126436" ID="ID_1000961938" MODIFIED="1538263469671" TEXT="wohin?">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1533769130987" ID="ID_220812854" MODIFIED="1533769163306" TEXT="ctrl">
+<node CREATED="1533769130987" ID="ID_220812854" MODIFIED="1538263469671" TEXT="ctrl">
 <icon BUILTIN="forward"/>
 </node>
-<node CREATED="1533769133802" ID="ID_643904873" MODIFIED="1533769166022" TEXT="interact">
+<node CREATED="1533769133802" ID="ID_643904873" MODIFIED="1538263469671" TEXT="interact">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1533769137338" ID="ID_918339492" MODIFIED="1533769168793" TEXT="workspace">
+<node CREATED="1533769137338" ID="ID_918339492" MODIFIED="1538263469671" TEXT="workspace">
 <icon BUILTIN="button_cancel"/>
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1538013206894" TEXT="mit Bus verdrahten und ID global konstant definieren">
+<node COLOR="#435e98" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1538263469671" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1537531589557" TEXT="Empfangs-Logik im NotificationHub (Controller)">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1538263469671" TEXT="Empfangs-Logik im NotificationHub (Controller)">
 <icon BUILTIN="full-3"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1534730011960" TEXT="Einrichtung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1538263469671" TEXT="Einrichtung">
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1534527345585" TEXT="Link zum Widget herstellen">
+<node COLOR="#338800" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1538263469671" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1534508409365" TEXT="als Funktor konfiguriert">
+<node COLOR="#338800" CREATED="1534334830126" ID="ID_932140820" MODIFIED="1538263469671" TEXT="als Funktor konfiguriert">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1534527003796" TEXT="Allozieren">
+<node COLOR="#338800" CREATED="1534334822288" ID="ID_1305015272" MODIFIED="1538263469671" TEXT="Allozieren">
 <arrowlink COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1534525243617" TEXT="View belegen">
+<node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1538263469671" TEXT="View belegen">
 <linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="-4;127;"/>
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1537461348507" TEXT="mit close-signal verdrahten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1538263469671" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="stop-sign"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
 <icon BUILTIN="broken-line"/>
@@ -2489,12 +2548,12 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534721400696" ID="ID_1935193271" MODIFIED="1534729121908" TEXT="jeder Zugriff pr&#xfc;ft WLink">
+<node COLOR="#338800" CREATED="1534721400696" ID="ID_1935193271" MODIFIED="1538263469671" TEXT="jeder Zugriff pr&#xfc;ft WLink">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1534721417590" ID="ID_1471234946" MODIFIED="1534721567118" STYLE="fork" TEXT="das er&#xfc;brigt Verwalten eines eigenen Signales">
+<node CREATED="1534721417590" ID="ID_1471234946" MODIFIED="1538263469671" STYLE="fork" TEXT="das er&#xfc;brigt Verwalten eines eigenen Signales">
 <linktarget COLOR="#69b2a9" DESTINATION="ID_1471234946" ENDARROW="Default" ENDINCLINATION="37;-44;" ID="Arrow_ID_1612034198" SOURCE="ID_997317939" STARTARROW="None" STARTINCLINATION="-209;0;"/>
 </node>
-<node COLOR="#338800" CREATED="1534729080597" ID="ID_1547931497" MODIFIED="1535556768694" TEXT="Code durchgesehen: alle Zugriffe sauber">
+<node COLOR="#338800" CREATED="1534729080597" ID="ID_1547931497" MODIFIED="1538263469671" TEXT="Code durchgesehen: alle Zugriffe sauber">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2510,7 +2569,7 @@
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1534721509684" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
+<node CREATED="1534721435740" ID="ID_1066281960" MODIFIED="1538263469671" TEXT="Konvention: Fehlerlog-Widget zerst&#xf6;ren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2521,23 +2580,23 @@
     </p>
   </body>
 </html></richcontent>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1534721870151" TEXT="verifizieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1538263469671" TEXT="verifizieren">
 <arrowlink DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node COLOR="#338800" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1534729998070" TEXT="dokumentieren">
+<node COLOR="#338800" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1538263469671" TEXT="dokumentieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1534721539161" TEXT="sofern es im Panel lebt, passiert das automatisch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1538263469671" TEXT="sofern es im Panel lebt, passiert das automatisch">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1533689151053" TEXT="bei Bedarf anzeigen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1538263469671" TEXT="bei Bedarf anzeigen">
 <icon BUILTIN="flag-yellow"/>
-<node COLOR="#338800" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1537499519266" TEXT="ebenfalls explizit zu bauen">
+<node COLOR="#338800" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1538263469671" TEXT="ebenfalls explizit zu bauen">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1534636352398" ID="ID_435790811" MODIFIED="1534636448600" TEXT="&#xe4;hnliche Lage wie bei Destroy">
+<node CREATED="1534636352398" ID="ID_435790811" MODIFIED="1538263469671" TEXT="&#xe4;hnliche Lage wie bei Destroy">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2558,57 +2617,57 @@
 </html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1534722142986" TEXT="reveal / revealYourself">
+<node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1538263469671" TEXT="reveal / revealYourself">
 <arrowlink COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1537499412751" TEXT="Lumiera-Framework: Revealer">
+<node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1538263469671" TEXT="Lumiera-Framework: Revealer">
 <icon BUILTIN="yes"/>
-<node COLOR="#338800" CREATED="1537499427673" ID="ID_671371282" MODIFIED="1537499435729" TEXT="#1162 helper abstractions for generic widgets">
+<node COLOR="#338800" CREATED="1537499427673" ID="ID_671371282" MODIFIED="1538263469671" TEXT="#1162 helper abstractions for generic widgets">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node CREATED="1534721937152" ID="ID_1396835945" MODIFIED="1534721944841" TEXT="macht aber nicht der Controller">
+<node CREATED="1534721937152" ID="ID_1396835945" MODIFIED="1538263469671" TEXT="macht aber nicht der Controller">
 <icon BUILTIN="yes"/>
-<node CREATED="1534721946351" ID="ID_1570295012" MODIFIED="1534721954170" TEXT="typisches OO-Design"/>
-<node CREATED="1534721955070" ID="ID_1390682663" MODIFIED="1537499200269" TEXT="der Controller ruft nur getWidget().reveal() auf">
+<node CREATED="1534721946351" ID="ID_1570295012" MODIFIED="1538263469671" TEXT="typisches OO-Design"/>
+<node CREATED="1534721955070" ID="ID_1390682663" MODIFIED="1538263469671" TEXT="der Controller ruft nur getWidget().reveal() auf">
 <linktarget COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" SOURCE="ID_558411855" STARTARROW="None" STARTINCLINATION="109;16;"/>
 <icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1534451630033" TEXT="status-Flag">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1538263469671" TEXT="status-Flag">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1534722574441" ID="ID_558411855" MODIFIED="1534722916336" TEXT="delegiert an Widget">
+<node CREATED="1534722574441" ID="ID_558411855" MODIFIED="1538263469671" TEXT="delegiert an Widget">
 <arrowlink COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" STARTARROW="None" STARTINCLINATION="109;16;"/>
 <icon BUILTIN="stop-sign"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722791268" ID="ID_1074988560" MODIFIED="1534722909109" TEXT="Error-State">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722791268" ID="ID_1074988560" MODIFIED="1538263469672" TEXT="Error-State">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1534722910293" TEXT="sichtbar" VSHIFT="-18">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1538263469672" TEXT="sichtbar" VSHIFT="-18">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1534725765116" TEXT="Controller-Interface">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1538263469672" TEXT="Controller-Interface">
 <icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1535752367109" TEXT="Expander">
+<node COLOR="#338800" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1538263469672" TEXT="Expander">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1534120202934" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
+<node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1538263469672" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
 <icon BUILTIN="info"/>
 </node>
-<node COLOR="#338800" CREATED="1535752333217" ID="ID_332486075" MODIFIED="1535752360062" TEXT="geeignet verdrahten f&#xfc;r Delegation">
+<node COLOR="#338800" CREATED="1535752333217" ID="ID_332486075" MODIFIED="1538263469672" TEXT="geeignet verdrahten f&#xfc;r Delegation">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1535752347574" ID="ID_883461261" MODIFIED="1535752358566" TEXT="Expander im ErrorLog widget verwenden">
+<node COLOR="#338800" CREATED="1535752347574" ID="ID_883461261" MODIFIED="1538263469672" TEXT="Expander im ErrorLog widget verwenden">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1537530994065" TEXT="doRevealYourself()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1538263469672" TEXT="doRevealYourself()">
 <icon BUILTIN="bell"/>
-<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1537459860078">
+<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1538263469672">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -2625,27 +2684,27 @@
 <arrowlink COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1534725759893" TEXT="doReset()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1538263469672" TEXT="doReset()">
 <icon BUILTIN="pencil"/>
-<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1534120202934" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
+<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1538263469672" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1537533440677" TEXT="doMsg(text)">
+<node COLOR="#338800" CREATED="1534120150462" ID="ID_1528884346" MODIFIED="1538263469672" TEXT="doMsg(text)">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1534120202934" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">
+<node CREATED="1534120150462" ID="ID_1226643824" MODIFIED="1538263469672" TEXT="&quot;Possibly allocate Widget, place text into its buffer. No need to expand&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1534725759894" TEXT="doClearMsg()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1538263469672" TEXT="doClearMsg()">
 <icon BUILTIN="pencil"/>
-<node CREATED="1534120150463" ID="ID_1378278687" MODIFIED="1534120202934" TEXT="&quot;remove all mere information messages&quot;">
+<node CREATED="1534120150463" ID="ID_1378278687" MODIFIED="1538263469672" TEXT="&quot;remove all mere information messages&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1537754665384" TEXT="doErr(text)">
+<node COLOR="#338800" CREATED="1534120150463" ID="ID_1967851591" MODIFIED="1538263469672" TEXT="doErr(text)">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1534120150463" ID="ID_764543121" MODIFIED="1534120282524">
+<node CREATED="1534120150463" ID="ID_764543121" MODIFIED="1538263469672">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -2670,21 +2729,21 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1534725759893" TEXT="doClearErr()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1538263469673" TEXT="doClearErr()">
 <icon BUILTIN="pencil"/>
-<node CREATED="1534120150465" ID="ID_1858186015" MODIFIED="1534120202932" TEXT="&quot;clear error state. If widget exists, turn all error entries into mere information entries&quot;">
+<node CREATED="1534120150465" ID="ID_1858186015" MODIFIED="1538263469673" TEXT="&quot;clear error state. If widget exists, turn all error entries into mere information entries&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531617621" ID="ID_447071799" MODIFIED="1537531623029" TEXT="doMark()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531617621" ID="ID_447071799" MODIFIED="1538263469673" TEXT="doMark()">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531624828" ID="ID_52936917" MODIFIED="1537531653306" TEXT="Spezialbehandlung + Chain, um die Warnungs State-marks abzugreifen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531624828" ID="ID_52936917" MODIFIED="1538263469673" TEXT="Spezialbehandlung + Chain, um die Warnungs State-marks abzugreifen">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1534725759893" TEXT="doFlash()">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1538263469673" TEXT="doFlash()">
 <icon BUILTIN="pencil"/>
-<node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1534120315751">
+<node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1538263469673">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -2702,33 +2761,33 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1534527104730" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1538263469673" TEXT="ErrorLogView vorl&#xe4;ufig...">
 <arrowlink COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" STARTARROW="None" STARTINCLINATION="397;197;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1533689307645" TEXT="in NotificationService integrieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1538263469673" TEXT="in NotificationService integrieren">
 <icon BUILTIN="full-4"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1533689310654" TEXT="Pling! -Button">
+<node COLOR="#435e98" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1538263469673" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
-<node COLOR="#338800" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1538013179410" TEXT="non-modal TestControl">
+<node COLOR="#338800" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1538263469673" TEXT="non-modal TestControl">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1537848042515" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
+<node COLOR="#338800" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1538263469673" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537841662854" ID="ID_451055929" MODIFIED="1537841679676" TEXT="Men&#xfc;eintrag im Hilfe-Men&#xfc;">
+<node COLOR="#338800" CREATED="1537841662854" ID="ID_451055929" MODIFIED="1538263469673" TEXT="Men&#xfc;eintrag im Hilfe-Men&#xfc;">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537841672261" ID="ID_1740266874" MODIFIED="1537841678780" TEXT="wird gemanaged vom Wizard">
+<node COLOR="#338800" CREATED="1537841672261" ID="ID_1740266874" MODIFIED="1538263469673" TEXT="wird gemanaged vom Wizard">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537836597844" ID="ID_1217826524" MODIFIED="1537848040826" TEXT="Konstrukt wie im Tutorial">
+<node COLOR="#338800" CREATED="1537836597844" ID="ID_1217826524" MODIFIED="1538263469673" TEXT="Konstrukt wie im Tutorial">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537836612210" ID="ID_225351262" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-about-dialog.html.en#aboutdialog-example" MODIFIED="1537836626843" TEXT="non-modal about dialog">
+<node CREATED="1537836612210" ID="ID_225351262" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-about-dialog.html.en#aboutdialog-example" MODIFIED="1538263469673" TEXT="non-modal about dialog">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1537838250303" FOLDED="true" ID="ID_1190002074" MODIFIED="1537848102311" TEXT="ist ein sub-window besser">
+<node CREATED="1537838250303" FOLDED="true" ID="ID_1190002074" MODIFIED="1538263469673" TEXT="ist ein sub-window besser">
 <icon BUILTIN="button_cancel"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537838265916" ID="ID_920100816" MODIFIED="1537841473971" TEXT="wie?">
 <icon BUILTIN="help"/>
@@ -2741,131 +2800,138 @@
 </node>
 <node CREATED="1537841505883" ID="ID_1112461783" MODIFIED="1537841514485" TEXT="geht wohl, ist aber etwas umst&#xe4;ndlich"/>
 </node>
-<node CREATED="1537841516945" ID="ID_1578548739" MODIFIED="1537841529797" TEXT="Dialog-Basisklasse non-modal">
+<node COLOR="#435e98" CREATED="1537841516945" ID="ID_1578548739" MODIFIED="1538263469674" TEXT="Dialog-Basisklasse non-modal">
 <icon BUILTIN="idea"/>
-<node CREATED="1537841531352" ID="ID_1190471518" MODIFIED="1537841543154" TEXT="hat eigene Konstruktoren, die den Dialog non-modal machen"/>
-<node CREATED="1537841543886" ID="ID_59238198" MODIFIED="1537841558488" TEXT="regelt schon automatisch das Verh&#xe4;ltnis zum Vaterfenster"/>
-<node CREATED="1537846114160" ID="ID_1907327221" MODIFIED="1537846128474" TEXT="Vorbild: Joel&apos;s PreferencesDialog">
-<node COLOR="#338800" CREATED="1537848007082" ID="ID_1014258603" MODIFIED="1537848024079" TEXT="Notebook">
+<node COLOR="#338800" CREATED="1537841531352" ID="ID_1190471518" MODIFIED="1538263469674" TEXT="hat eigene Konstruktoren, die den Dialog non-modal machen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537848010330" ID="ID_1307971717" MODIFIED="1537848022373" TEXT="Seite einf&#xfc;gen f&#xfc;r #1099">
+<node COLOR="#338800" CREATED="1537841543886" ID="ID_59238198" MODIFIED="1538263469674" TEXT="regelt schon automatisch das Verh&#xe4;ltnis zum Vaterfenster">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1537846114160" ID="ID_1907327221" MODIFIED="1538263469674" TEXT="Vorbild: Joel&apos;s PreferencesDialog">
+<icon BUILTIN="idea"/>
+<node COLOR="#338800" CREATED="1537848007082" ID="ID_1014258603" MODIFIED="1538263469674" TEXT="Notebook">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537848010330" ID="ID_1307971717" MODIFIED="1538263469674" TEXT="Seite einf&#xfc;gen f&#xfc;r #1099">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537846129846" ID="ID_984655666" MODIFIED="1537847935725" TEXT="mu&#xdf; nur noch non-modal sein...">
+<node COLOR="#338800" CREATED="1537846129846" ID="ID_984655666" MODIFIED="1538263469674" TEXT="mu&#xdf; nur noch non-modal sein...">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537847939155" ID="ID_1465508298" MODIFIED="1537847959601" TEXT="einfach per Gtk::DialogFlags">
+<node CREATED="1537847939155" ID="ID_1465508298" MODIFIED="1538263469674" TEXT="einfach per Gtk::DialogFlags">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1537847979886" ID="ID_1956886110" MODIFIED="1537847981522" TEXT="DIALOG_DESTROY_WITH_PARENT"/>
+<node CREATED="1537847979886" ID="ID_1956886110" MODIFIED="1538263469674" TEXT="DIALOG_DESTROY_WITH_PARENT"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537836550411" ID="ID_899229612" MODIFIED="1537848039348" TEXT="h&#xe4;ngt (passiv) am UI-Bus">
+<node COLOR="#338800" CREATED="1537836550411" ID="ID_899229612" MODIFIED="1538263469674" TEXT="h&#xe4;ngt (passiv) am UI-Bus">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1537848045781" ID="ID_766784189" MODIFIED="1537848055613" TEXT="analog zum NotificationService">
+<node CREATED="1537848045781" ID="ID_766784189" MODIFIED="1538263469674" TEXT="analog zum NotificationService">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1537848056915" ID="ID_64593877" MODIFIED="1537848089997" TEXT="globals.uiBus_.getAccessPoint()">
+<node CREATED="1537848056915" ID="ID_64593877" MODIFIED="1538263469674" TEXT="globals.uiBus_.getAccessPoint()">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1537969666482" TEXT="setup f&#xfc;r Notebook-Widget">
+<node COLOR="#338800" CREATED="1537961550200" ID="ID_226231657" MODIFIED="1538263469674" TEXT="setup f&#xfc;r Notebook-Widget">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1538013249329" TEXT="Prototyp f&#xfc;r generischen Helper">
+<node COLOR="#435e98" CREATED="1537961568746" ID="ID_1553519505" MODIFIED="1538263469674" TEXT="Prototyp f&#xfc;r generischen Helper">
 <arrowlink COLOR="#6ea8be" DESTINATION="ID_591860371" ENDARROW="Default" ENDINCLINATION="1162;51;" ID="Arrow_ID_1534615646" STARTARROW="None" STARTINCLINATION="-185;836;"/>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1538013112289" TEXT="Radiobuttons">
+<node COLOR="#338800" CREATED="1537836522950" ID="ID_87203159" MODIFIED="1538263469674" TEXT="Radiobuttons">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1538013155212" TEXT="Argument-Textbox">
+<node COLOR="#338800" CREATED="1537834955977" ID="ID_556296967" MODIFIED="1538263469674" TEXT="Argument-Textbox">
 <arrowlink COLOR="#19f524" DESTINATION="ID_1072038781" ENDARROW="Default" ENDINCLINATION="-7;-200;" ID="Arrow_ID_746117643" STARTARROW="None" STARTINCLINATION="94;0;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1537848122882" TEXT="Pling!">
+<node COLOR="#338800" CREATED="1537836579647" ID="ID_951515368" MODIFIED="1538263469674" TEXT="Pling!">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537972817468" FOLDED="true" ID="ID_443954725" MODIFIED="1538176841339" TEXT="direkt den UI-Bus ansprechen">
+<node COLOR="#338800" CREATED="1537972817468" FOLDED="true" ID="ID_443954725" MODIFIED="1538263469674" TEXT="direkt den UI-Bus ansprechen">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1537973078631" ID="ID_476903403" MODIFIED="1537973140285" TEXT="*** first tangible action sent via UI-Bus ***">
 <font NAME="SansSerif" SIZE="28"/>
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1538176894784" TEXT="Argument-Werte abgreifen">
+<node COLOR="#338800" CREATED="1537848127378" ID="ID_1206004" MODIFIED="1538263469674" TEXT="Argument-Werte abgreifen">
 <arrowlink COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" STARTARROW="None" STARTINCLINATION="-10;35;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538227119464" TEXT="triggert Dummy-Command">
+<node COLOR="#338800" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538263469674" TEXT="triggert Dummy-Command">
 <linktarget COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" SOURCE="ID_1206004" STARTARROW="None" STARTINCLINATION="-10;35;"/>
 <icon BUILTIN="button_ok"/>
-<node COLOR="#435e98" CREATED="1538220904703" HGAP="46" ID="ID_1997338106" MODIFIED="1538220975996" TEXT="definieren..." VSHIFT="31">
+<node COLOR="#435e98" CREATED="1538220904703" HGAP="46" ID="ID_1997338106" MODIFIED="1538263469674" TEXT="definieren..." VSHIFT="31">
 <icon BUILTIN="yes"/>
-<node COLOR="#338800" CREATED="1538220944278" ID="ID_1508594379" MODIFIED="1538227139691" TEXT="test_meta_displayInfo">
+<node COLOR="#338800" CREATED="1538220944278" ID="ID_1508594379" MODIFIED="1538263469674" TEXT="test_meta_displayInfo">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1538220949651" ID="ID_1282771011" MODIFIED="1538227138739" TEXT="test_meta_markError">
+<node COLOR="#338800" CREATED="1538220949651" ID="ID_1282771011" MODIFIED="1538263469674" TEXT="test_meta_markError">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1538220955266" ID="ID_1011451863" MODIFIED="1538227137340" TEXT="test_meta_markNote">
+<node COLOR="#338800" CREATED="1538220955266" ID="ID_1011451863" MODIFIED="1538263469674" TEXT="test_meta_markNote">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538220961641" ID="ID_1936475731" MODIFIED="1538227131061" TEXT="test_meta_markAction">
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538220890763" TEXT="Aufruf via Notification_Facade">
-<icon BUILTIN="flag-yellow"/>
-<icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1538220882124" TEXT="displayInfo">
-<icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537977715375" ID="ID_26283848" MODIFIED="1538220884023" TEXT="INFO">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1537977721054" ID="ID_1182006449" MODIFIED="1538220885525" TEXT="WARN">
-<icon BUILTIN="button_ok"/>
-</node>
-<node COLOR="#338800" CREATED="1537977723454" ID="ID_484673349" MODIFIED="1538220887767" TEXT="ERROR">
+<node COLOR="#338800" CREATED="1538220961641" ID="ID_1936475731" MODIFIED="1538263469674" TEXT="test_meta_markAction">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1538234774766" TEXT="direkte Bus-Aufrufe">
+</node>
+<node COLOR="#338800" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538263469674" TEXT="Aufruf via Notification_Facade">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1538220877346" TEXT="markError">
+<node COLOR="#338800" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1538263469674" TEXT="displayInfo">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537977715375" ID="ID_26283848" MODIFIED="1538263469675" TEXT="INFO">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1538220879207" TEXT="markNote">
+<node COLOR="#338800" CREATED="1537977721054" ID="ID_1182006449" MODIFIED="1538263469675" TEXT="WARN">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1538013147452" TEXT="mark">
+<node COLOR="#338800" CREATED="1537977723454" ID="ID_484673349" MODIFIED="1538263469675" TEXT="ERROR">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1537835015601" ID="ID_1684094906" MODIFIED="1538263469675" TEXT="direkte Bus-Aufrufe">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537835220978" ID="ID_1439086949" MODIFIED="1538263469675" TEXT="markError">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537835228018" ID="ID_1420898810" MODIFIED="1538263469675" TEXT="markNote">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537835741000" ID="ID_1072038781" MODIFIED="1538263469675" TEXT="mark">
 <linktarget COLOR="#19f524" DESTINATION="ID_1072038781" ENDARROW="Default" ENDINCLINATION="-7;-200;" ID="Arrow_ID_746117643" SOURCE="ID_556296967" STARTARROW="None" STARTINCLINATION="94;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835767228" ID="ID_400466516" MODIFIED="1537835899052" TEXT="FLASH">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537835767228" ID="ID_400466516" MODIFIED="1538263469675" TEXT="FLASH">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835848674" ID="ID_1915433481" MODIFIED="1537835898316" TEXT="REVEAL">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835848674" ID="ID_1915433481" MODIFIED="1538263469675" TEXT="REVEAL">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835859576" ID="ID_968868056" MODIFIED="1537835897556" TEXT="CLEAR_ERR">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538239665856" ID="ID_518505874" MODIFIED="1538263469675" TEXT="EXPAND">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835874382" ID="ID_252957072" MODIFIED="1537835896708" TEXT="CLEAR_MSG">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835859576" ID="ID_968868056" MODIFIED="1538263469675" TEXT="CLEAR_ERR">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835880405" ID="ID_992909467" MODIFIED="1537835895900" TEXT="RESET">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835874382" ID="ID_252957072" MODIFIED="1538263469675" TEXT="CLEAR_MSG">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537835889996" ID="ID_5762574" MODIFIED="1537835895044" TEXT="GenNode">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537835880405" ID="ID_992909467" MODIFIED="1538263469675" TEXT="RESET">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537835889996" ID="ID_5762574" MODIFIED="1538263469675" TEXT="GenNode">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538230509179" HGAP="22" ID="ID_657255465" MODIFIED="1538232922694" TEXT="Problem ID-&#xdc;bergabe" VSHIFT="14">
+<node COLOR="#435e98" CREATED="1538230509179" FOLDED="true" HGAP="22" ID="ID_657255465" MODIFIED="1538263469675" TEXT="Problem ID-&#xdc;bergabe" VSHIFT="14">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1538230525641" ID="ID_1999133642" MODIFIED="1538230536846" TEXT="wieder mal das Schei&#xdf; Interface-System">
 <icon BUILTIN="smiley-angry"/>
@@ -2884,8 +2950,7 @@
       DiffMessage repr&#228;sentiert einen f&#252;r den User verdeckten Callback
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538234760471" ID="ID_1256781554" MODIFIED="1538234766447" TEXT="#1175 consider EntryID as external entity ID">
 <icon BUILTIN="flag-yellow"/>
@@ -2894,70 +2959,70 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1534721762112" TEXT="verifizieren">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1538263469675" TEXT="verifizieren">
 <icon BUILTIN="full-6"/>
-<node COLOR="#338800" CREATED="1538234826126" ID="ID_1989018475" MODIFIED="1538234837334" TEXT="Round-Trip &#xfc;ber Thrad-Grenzen hinweg">
+<node COLOR="#338800" CREATED="1538234826126" ID="ID_1989018475" MODIFIED="1538263469675" TEXT="Round-Trip &#xfc;ber Thrad-Grenzen hinweg">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1538234843916" ID="ID_1672079020" MODIFIED="1538234869369" TEXT="Argument-&#xdc;bergabe per Kopie">
+<node COLOR="#338800" CREATED="1538234843916" ID="ID_1672079020" MODIFIED="1538263469675" TEXT="Argument-&#xdc;bergabe per Kopie">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1537961523677" TEXT="Belegen der View">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1538263469675" TEXT="Belegen der View">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1534721838886" TEXT="Verbinden mit bestehendem InfoboxPanel">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1538263469675" TEXT="Verbinden mit bestehendem InfoboxPanel">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721811969" ID="ID_1320259895" MODIFIED="1534721838431" TEXT="auch in einerm anderen Fenster">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721811969" ID="ID_1320259895" MODIFIED="1538263469675" TEXT="auch in einerm anderen Fenster">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721785596" ID="ID_1517054985" MODIFIED="1534721837983" TEXT="Erzeugen eines neuen InfoboxPanels">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721785596" ID="ID_1517054985" MODIFIED="1538263469675" TEXT="Erzeugen eines neuen InfoboxPanels">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721819264" ID="ID_1360416196" MODIFIED="1534721870151" TEXT="Panel durch Ersetzung zerst&#xf6;ren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721819264" ID="ID_1360416196" MODIFIED="1538263469675" TEXT="Panel durch Ersetzung zerst&#xf6;ren">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" SOURCE="ID_1984401497" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1537531170346" TEXT="Funktionen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1538263469675" TEXT="Funktionen">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531078757" ID="ID_605735534" MODIFIED="1537531168651" TEXT="Reset">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531078757" ID="ID_605735534" MODIFIED="1538263469675" TEXT="Reset">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531084396" ID="ID_648584085" MODIFIED="1537531167834" TEXT="Meldung ausgeben">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531084396" ID="ID_648584085" MODIFIED="1538263469675" TEXT="Meldung ausgeben">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531543495" ID="ID_1813117782" MODIFIED="1537531558777" TEXT="Warnung anzeigen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531543495" ID="ID_1813117782" MODIFIED="1538263469675" TEXT="Warnung anzeigen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531109361" ID="ID_1483169066" MODIFIED="1537531167107" TEXT="Fehler ausgeben">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531109361" ID="ID_1483169066" MODIFIED="1538263469675" TEXT="Fehler ausgeben">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531089012" ID="ID_1427238207" MODIFIED="1537531166466" TEXT="alle Meldungen entfernen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531089012" ID="ID_1427238207" MODIFIED="1538263469675" TEXT="alle Meldungen entfernen">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531153739" ID="ID_538123549" MODIFIED="1537531165851" TEXT="Fehler in Meldungen verwandeln">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531153739" ID="ID_538123549" MODIFIED="1538263469676" TEXT="Fehler in Meldungen verwandeln">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531160298" ID="ID_1717013245" MODIFIED="1537531165019" TEXT="Flash">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531160298" ID="ID_1717013245" MODIFIED="1538263469676" TEXT="Flash">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532006073" HGAP="-92" ID="ID_135756255" MODIFIED="1537532592367" TEXT="Neben-Nutzen" VSHIFT="15">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532006073" HGAP="-92" ID="ID_135756255" MODIFIED="1538263469676" TEXT="Neben-Nutzen" VSHIFT="15">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1537532035141" ID="ID_188521578" MODIFIED="1537532581615" TEXT="NotificationService">
+<node CREATED="1537532035141" ID="ID_188521578" MODIFIED="1538263469676" TEXT="NotificationService">
 <icon BUILTIN="info"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532041420" ID="ID_1545300987" MODIFIED="1537532577948" TEXT="Implementierung komplettieren">
-<arrowlink COLOR="#ed223a" DESTINATION="ID_1901801971" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1609281182" STARTARROW="None" STARTINCLINATION="83;-25;"/>
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537532041420" ID="ID_1545300987" MODIFIED="1538263469676" TEXT="Implementierung komplettieren">
+<arrowlink COLOR="#22ed6f" DESTINATION="ID_1901801971" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1609281182" STARTARROW="None" STARTINCLINATION="83;-25;"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532447549" ID="ID_821848615" MODIFIED="1537532579109" TEXT="Fehleranzeige-Funktion">
+<node COLOR="#338800" CREATED="1537532447549" ID="ID_821848615" MODIFIED="1538263469676" TEXT="Fehleranzeige-Funktion">
 <arrowlink COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" STARTARROW="None" STARTINCLINATION="1509;156;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1537532574773" TEXT="dokumentieren und Ticket #1102 schlie&#xdf;en">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1538263469676" TEXT="dokumentieren und Ticket #1102 schlie&#xdf;en">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
@@ -4262,8 +4327,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1537659869395" TEXT="Timeline"/>
 <node CREATED="1537659870415" ID="ID_1181375258" MODIFIED="1537659875274" TEXT="Property-Grid"/>
 </node>
@@ -4294,8 +4358,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
 </node>
@@ -4309,8 +4372,7 @@
       vorbereitete Grundstrukturen f&#252;r immer wiederkehrende Setups
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1537961734956" ID="ID_345535043" MODIFIED="1537961770028" TEXT="Notebook-Widget">
 <node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
 <icon BUILTIN="forward"/>
@@ -4353,8 +4415,7 @@
       Und der Rest sollte so <i>vertraut</i>&#160;aussehen, da&#223; es selbsterkl&#228;rend wird.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -15919,9 +15980,9 @@
 </node>
 <node CREATED="1488677751537" ID="ID_75445042" MODIFIED="1518487921078" TEXT="schwierig f&#xfc;r Widgets">
 <icon BUILTIN="smily_bad"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1520721624161" ID="ID_1714114896" MODIFIED="1520722071693" TEXT="DependencyFactory">
+<node COLOR="#338800" CREATED="1520721624161" ID="ID_1714114896" MODIFIED="1538265183614" TEXT="DependencyFactory">
 <arrowlink COLOR="#5c71a3" DESTINATION="ID_451964727" ENDARROW="Default" ENDINCLINATION="767;-2073;" ID="Arrow_ID_1454095581" STARTARROW="None" STARTINCLINATION="1892;380;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1520721630328" ID="ID_1547268458" MODIFIED="1520721637315" TEXT="wir haben schon eine L&#xf6;sung f&#xfc;r Singletons"/>
 <node CREATED="1520721638143" ID="ID_1691402961" MODIFIED="1520721645210" TEXT="diese kann auf Services erweitert werden"/>
 <node CREATED="1520721647670" ID="ID_1649501241" MODIFIED="1520721660608" TEXT="sollte auch L&#xf6;sung f&#xfc;r Tests beinhalten"/>
@@ -17741,6 +17802,10 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531419217662" ID="ID_745789650" MODIFIED="1531419680313" TEXT="#1147 establish UI start-up sequence">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node COLOR="#435e98" CREATED="1538265361374" ID="ID_1843835835" MODIFIED="1538265621011" TEXT="Detailierte Analyse">
+<arrowlink COLOR="#77c1c5" DESTINATION="ID_226245696" ENDARROW="Default" ENDINCLINATION="-1683;73;" ID="Arrow_ID_532646791" STARTARROW="None" STARTINCLINATION="3001;448;"/>
+<icon BUILTIN="info"/>
+</node>
 <node CREATED="1531417583847" ID="ID_1316715960" MODIFIED="1531417599201" TEXT="Dienste starten">
 <node CREATED="1531417744657" ID="ID_350697541" MODIFIED="1531419714185" TEXT="Inhalts-Konsument">
 <arrowlink COLOR="#30327c" DESTINATION="ID_527465217" ENDARROW="Default" ENDINCLINATION="25;-45;" ID="Arrow_ID_1130203410" STARTARROW="None" STARTINCLINATION="-75;21;"/>
@@ -17812,8 +17877,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533392476019" ID="ID_1798579710" MODIFIED="1533401269006" TEXT="vorl&#xe4;ufige Dummy-Implementierung">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401271538" ID="ID_613065826" MODIFIED="1533401302008" TEXT="erst mal nur eine Nachricht als UI-Notification">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1533401271538" ID="ID_613065826" MODIFIED="1538263724168" TEXT="erst mal nur eine Nachricht als UI-Notification">
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1535892210892" TEXT="#1099 DemoGuiRoundtrip">
 <arrowlink COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" STARTARROW="None" STARTINCLINATION="418;-44;"/>
 <icon BUILTIN="flag-pink"/>
@@ -25709,8 +25774,7 @@
       &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;^~~~~~~~~~
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
@@ -25953,21 +26017,21 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1483927678318" HGAP="25" ID="ID_1324099152" MODIFIED="1518487921090" TEXT="Notification-Facade &#xf6;ffnen" VSHIFT="4">
+<node COLOR="#338800" CREATED="1483927678318" HGAP="25" ID="ID_1324099152" MODIFIED="1538263681166" TEXT="Notification-Facade &#xf6;ffnen" VSHIFT="4">
 <arrowlink COLOR="#51517b" DESTINATION="ID_379585622" ENDARROW="Default" ENDINCLINATION="-476;439;" ID="Arrow_ID_1616528570" STARTARROW="Default" STARTINCLINATION="-541;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1483927692988" ID="ID_354422174" MODIFIED="1518487921090" TEXT="Lebenszyklus-Fragen verifizieren">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1483927692988" ID="ID_354422174" MODIFIED="1538263617013" TEXT="Lebenszyklus-Fragen verifizieren">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1483927735679" ID="ID_783490676" MODIFIED="1518487921090" TEXT="Integration in UI-Main verifizieren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1483927735679" ID="ID_783490676" MODIFIED="1538263622227" TEXT="Integration in UI-Main verifizieren">
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1483927710450" ID="ID_1085939201" MODIFIED="1522935005617" TEXT="Hochfahren des UI / Schlie&#xdf;en des UI">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1515977616903" ID="ID_1098045534" MODIFIED="1522935492881" TEXT="TODO: einfaches Fehler-Display">
+<node COLOR="#435e98" CREATED="1515977616903" ID="ID_1098045534" MODIFIED="1538263666187" TEXT="(vorl&#xe4;ufig) einfaches Fehler-Display">
 <arrowlink COLOR="#ebf0a5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-3154;1704;" ID="Arrow_ID_1091720734" STARTARROW="None" STARTINCLINATION="1627;38;"/>
-<icon BUILTIN="flag-pink"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1501778430101" ID="ID_489078622" MODIFIED="1531588554277" TEXT="#1098 hand-over to UI thread">
@@ -32221,8 +32285,7 @@
       (weil er einen Kind-Iterator leer machen k&#246;nnte, ohne da&#223; dieser gePOPpt wird)
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1537058418739" ID="ID_232136872" MODIFIED="1537059386568" TEXT="Umstellung">
@@ -32244,8 +32307,7 @@
       Vorsicht: um sauber genau einen Schritt machen zu k&#246;nnen, m&#252;ssen wir explizit vor&#252;bergehend den Filter abschalten
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#5174b2" DESTINATION="ID_256131209" ENDARROW="Default" ENDINCLINATION="-241;-10;" ID="Arrow_ID_73536182" STARTARROW="None" STARTINCLINATION="169;19;"/>
 </node>
 </node>
@@ -32277,8 +32339,7 @@
       K&#252;nftig gibt es nach jedem Fail ein Backtracking.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1537058600555" ID="ID_717984419" MODIFIED="1537058656433" TEXT="sollte aber bei reinen AND-Klauseln egal sein">
 <richcontent TYPE="NOTE"><html>
@@ -32293,8 +32354,7 @@
       sollte sich erneut ein FAIL ergeben
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1537058662202" ID="ID_654601259" MODIFIED="1537058688483" TEXT="und blo&#xdf; zus&#xe4;tzlichen overhead bei NOT-Match-Tests bewirken"/>
 </node>
@@ -32312,8 +32372,7 @@
       est-event-log-test.cpp:228:&#160;&#160;verify_callLogging: (log.ensureNot(&quot;fun&quot;).after(&quot;fun&quot;).after(&quot;fun2&quot;))
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1537059455216" ID="ID_318014472" MODIFIED="1537309403475">
@@ -32326,8 +32385,7 @@
       Verdacht: <b>Negation</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
 <node CREATED="1537230016114" ID="ID_1768475576" MODIFIED="1537309001137" TEXT="nein... es war bisher kaputt">
@@ -32342,8 +32400,7 @@
       fun after fun matcht auf den immer gleichen Record
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1537230078498" ID="ID_746060961" MODIFIED="1537230098331" TEXT="wir setzen am vorherigen Match auf"/>
 <node CREATED="1537230100031" ID="ID_831756745" MODIFIED="1537230107546" TEXT="das ist &#xfc;berraschend"/>
@@ -32407,8 +32464,7 @@
       und zwar mit <i>abgeschaltetem </i>Filter
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32424,8 +32480,7 @@
       damit wir exakt das n&#228;chste / vorhergehende Element bekommen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#cb8fa1" DESTINATION="ID_665208250" ENDARROW="Default" ENDINCLINATION="55;0;" ID="Arrow_ID_1772260988" SOURCE="ID_1081351208" STARTARROW="None" STARTINCLINATION="-39;46;"/>
 <icon BUILTIN="idea"/>
 </node>
@@ -32548,8 +32603,7 @@
       geht gar nicht anders, denn diese sind templates
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>

From f9c6a49b9bcd307c1ff23cb7182a10b77f88bc03 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 30 Sep 2018 02:16:33 +0200
Subject: [PATCH 118/178] NotificationDisplay: implement reset/clearAll

---
 src/gui/widget/error-log-display.hpp  |  10 +-
 src/include/gui-notification-facade.h |   6 +-
 wiki/renderengine.html                |  10 +-
 wiki/thinkPad.ichthyo.mm              | 171 +++++++++++++++-----------
 4 files changed, 118 insertions(+), 79 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 2d8361e46..19d2064f4 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -62,6 +62,7 @@
 #include "gui/gtk-base.hpp"
 #include "gui/model/expander-revealer.hpp"
 #include "include/gui-notification-facade.h"
+#include "lib/format-string.hpp"
 #include "lib/symbol.hpp"
 //#include "lib/util.hpp"
 
@@ -73,6 +74,7 @@
 namespace gui  {
 namespace widget {
   
+  using util::_Fmt;
   using lib::Literal;
   using std::vector;
   
@@ -143,10 +145,16 @@ namespace widget {
       model::Revealer reveal;
       
       
+      /** empty buffer and discard all error bookmarks */
       void
       clearAll()
         {
-          UNIMPLEMENTED ("empty buffer and discard all error bookmarks");
+          errorMarks_.clear();
+          size_t lineCnt = textLog_.get_buffer()->get_line_count();
+          string placeholder;
+          if (lineCnt > 0)
+            placeholder = _Fmt{_("───════ %d preceding lines removed ════───\n")} % lineCnt;
+          textLog_.get_buffer()->set_text (placeholder);  // discard existing content
         }
       
       /** just add normal information message to buffer,
diff --git a/src/include/gui-notification-facade.h b/src/include/gui-notification-facade.h
index 2eca7f2bc..bb4970cfe 100644
--- a/src/include/gui-notification-facade.h
+++ b/src/include/gui-notification-facade.h
@@ -44,12 +44,16 @@
 #ifdef __cplusplus  /* ============== C++ Interface ================= */
 
 #include "lib/depend.hpp"
-#include "lib/diff/mutation-message.hpp"
 #include "lib/idi/entry-id.hpp"
 
 #include <string>
 
 
+namespace lib {
+  namespace diff {
+    class GenNode;
+    class MutationMessage;
+} }
 namespace gui {
   
   using std::string;
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 9a14cf2a4..655a0034a 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -3358,7 +3358,7 @@ This treatment ensures each nested diff is consumed within a properly typed cont
 &amp;rarr; this is the purpose of the {{{DataCap}}} within our [[generic node element|GenNode]]
 </pre>
 </div>
-<div title="GuiNotificationFacade" modifier="Ichthyostega" created="200902080659" modified="201708222311" tags="spec" changecount="12">
+<div title="GuiNotificationFacade" modifier="Ichthyostega" created="200902080659" modified="201809300130" tags="spec" changecount="13">
 <pre>LayerSeparationInterface provided by the GUI.
 Access point for the lower layers to push information and state changes (asynchronously) to the GUI. Most operations within Lumiera are in fact initiated by the user through the GUI. In the course of such actions, the GUI uses the services of the lower layer and typically receives an immediate synchronous response to indicate the change was noted. Yet often, these operations may cause additional changes to happen asynchronously from the GUI's perspective. For example, an edit operation might trigger a re-build of the low-level model, which then detects an error. Any such consequences and notifications can be &quot;cast&quot; up into the UI, using the {{{NotificationService}}} described here.
 
@@ -3370,7 +3370,7 @@ The GuiNotificationFacade is installed as part of and managed by the ''UI Manage
 A dedicated ''activation state'' is necessary for this reason -- which within the implementation translates into a queuing and dispatching facility to reschedule any calls into the UI event thread ''asynchronously''.
 
 !Addressing of UI elements
-Most calls in this interface require to specify a receiver or target, in the form of an element ID. It is assumed the caller effectively just knows these ~IDs, typically because the same ~IDs are also used as element ~IDs for the corresponding session entities. And, to start with, the whole UI representation of the session was at some point generated by //population diff messages,// which used the same ~IDs to indicate the creation of the corresponding UI representation elements.
+Most calls in this interface require to specify a receiver or target, in the form of an element ID. It is assumed the caller effectively just knows these ~IDs, typically because the same ~IDs are also used as element ~IDs for the corresponding session entities. Even more so, since the whole UI representation of the session was at some point generated by //population diff messages,// which used the same ~IDs to indicate the creation of the corresponding UI representation elements.
 </pre>
 </div>
 <div title="GuiPattern" creator="Ichthyostega" modifier="Ichthyostega" created="201410160054" modified="201612021723" tags="overview" changecount="4">
@@ -9803,7 +9803,7 @@ For now, as of 6/10, we use specialised QueryResolver instances explicitly and d
 &amp;rarr; QueryRegistration
 </pre>
 </div>
-<div title="UI-Bus" creator="Ichthyostega" modifier="Ichthyostega" created="201501061115" modified="201704171603" tags="GuiPattern Concepts def design draft" changecount="22">
+<div title="UI-Bus" creator="Ichthyostega" modifier="Ichthyostega" created="201501061115" modified="201809300133" tags="GuiPattern Concepts def design draft" changecount="24">
 <pre>Abstraction used in the Backbone of Lumiera's GTK User Interface
 The UI-Bus is a ''Mediator'' -- impersonating the role of the //Model// and the //Controler// in the [[MVC-Pattern|http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller]] in common UI architecture.
 
@@ -9811,10 +9811,10 @@ The ~MVC-Pattern as such is fine, and probably the best we know for construction
 
 !!!rationale
 This way, we separate between immediate local control of UI state and the more global, generic [[interaction control|InteractionControl]] and [[command binding|GuiCommandBinding]].
-And we arrive at a backbone like structure, which can be wired, programmed and reasoned about while abstracting from the local concerns and the state management related to the UI toolkit set in use. Any element //of more than local relevance// -- be it a controller or be it a widget, representing some entity from the model -- will be attached to the UI-Bus by virtue of a ''bus terminal'', establishing a bi-directional connection. This enables any UI element to invoke commands and persist presentation state (by sending //&quot;state mark&quot; mesages//), and in turn this allows the session and engine core to &quot;cast&quot; state updates towards the UI, without precisely knowing where and how to reach the relevant presentation entities.
+And we arrive at a backbone like structure, which can be wired, programmed and reasoned about while abstracting from the local concerns and the state management related to the UI toolkit set in use. Any element //of more than local relevance// -- be it a controller or be it a widget, representing some entity from the model -- will be attached to the UI-Bus by virtue of a ''bus terminal'', establishing a bi-directional connection. This enables any UI element to invoke commands and persist presentation state (by sending //&quot;state mark&quot; mesages//), and in turn this allows the session and engine core to &quot;cast&quot; state updates towards the UI, without knowing in detail where and how to reach the relevant presentation entities.
 
 !!!topology
-The UI-Bus has a simple star shaped topology without hierarchical nesting and forwarding. It is not necessarily connected this way, since protocol and contracts do not assume any topology explicitly -- and the topology may be subject to change without further notice. We'll only assume there is a central hub somewhere in the bus, which maintains a routing table. Actually this hub represents the centre of the star and is known as ''Nexus''. Whenever an UI element connects to the bus, a routing entry is added, which allows the element to be directly invoked to receive messages. For that reason, every element connected this way must be at a fixed memory location.
+The UI-Bus has a simple star shaped topology without hierarchical nesting and forwarding. It is not necessarily connected this way, since protocol and contracts do not assume any topology explicitly -- and the topology may be subject to change without further notice. We'll only assume there is a central hub somewhere in the bus, which maintains a routing table. Actually this hub represents the centre of the star and is known as ''Nexus''. Whenever an UI element connects to the bus, a routing entry is added, which allows the element to be directly invoked to receive messages. For that reason, every element connected this way must stay put, at a fixed memory location.
 
 !!!degree of connectedness
 A connection point to the UI-Bus is called a ''Bus Terminal'' and implemented by class {{{BusTerm}}}. In fact, this class is the foundation of the ~UI-Bus network, with the Nexus being a specialisation. The //contract// involved with this connection requires the connected entity to respond to several messages, which effectively also means that this connected entity is a tangible UI-Element ({{{gui::model::Tangible}}} implements the necessary functions). But this pertains only to fully bidirectional bus connections, where the connected entity can receive messages addressed by it's ID. Beyond that, it is very much possible to operate a &quot;free standing&quot; bus terminal, which allows just to send &quot;uplink&quot; messages into the bus, without the need to add this terminal itself to the central routing table.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7336c44ce..95c843a50 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -228,7 +228,7 @@
   </body>
 </html></richcontent>
 <linktarget COLOR="#51517b" DESTINATION="ID_379585622" ENDARROW="Default" ENDINCLINATION="-476;439;" ID="Arrow_ID_1616528570" SOURCE="ID_1324099152" STARTARROW="Default" STARTINCLINATION="-541;0;"/>
-<node COLOR="#338800" CREATED="1484792679322" ID="ID_426218722" MODIFIED="1522936023760" TEXT="#1047 preliminary definition of GuiNotification facade">
+<node COLOR="#338800" CREATED="1484792679322" HGAP="13" ID="ID_426218722" MODIFIED="1538267933539" TEXT="#1047 preliminary definition of GuiNotification facade" VSHIFT="-3">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -269,7 +269,7 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#5c1010" CREATED="1501776256263" ID="ID_1196529588" MODIFIED="1518487921041" TEXT="Bedeutung">
+<node COLOR="#5c1010" CREATED="1501776256263" HGAP="21" ID="ID_1196529588" MODIFIED="1538267930864" TEXT="Bedeutung" VSHIFT="-11">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1501776296394" ID="ID_1578367045" MODIFIED="1518487921041" TEXT="R&#xfc;ckpfad Proc -&gt; UI">
 <linktarget COLOR="#9292a1" DESTINATION="ID_1578367045" ENDARROW="Default" ENDINCLINATION="45;-124;" ID="Arrow_ID_1265828105" SOURCE="ID_415789885" STARTARROW="None" STARTINCLINATION="389;0;"/>
@@ -287,13 +287,58 @@
   </body>
 </html></richcontent>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538267608198" FOLDED="true" HGAP="39" ID="ID_181594780" MODIFIED="1538267919378" TEXT="pa&#xdf;t der Name" VSHIFT="21">
+<icon BUILTIN="help"/>
+<node COLOR="#435e98" CREATED="1533915343891" ID="ID_1650034681" MODIFIED="1538267897031" TEXT="&#xdc;berlegungen">
+<icon BUILTIN="info"/>
+<node CREATED="1533915353434" ID="ID_1231213592" MODIFIED="1533915424732" TEXT="ist mehr als &quot;notification&quot;?">
+<icon BUILTIN="button_cancel"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1533915365545" ID="ID_892577975" MODIFIED="1538267801552" TEXT="ja -- aber vorerst nicht relevant">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1533915439279" ID="ID_285136109" MODIFIED="1533915452025" TEXT="Notification auf Architektur-Level"/>
+</node>
+<node CREATED="1533915371872" ID="ID_1003239787" MODIFIED="1533915380406" TEXT="GuiFeedback?">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1533915407171" ID="ID_728064464" MODIFIED="1533915412457" TEXT="GuiReaction">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538263882239" ID="ID_1273122422" MODIFIED="1538263888584" TEXT="GuiResponse">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1533915454893" ID="ID_877610316" MODIFIED="1538267861452" TEXT="GuiNotification ist nicht schlecht">
+<icon BUILTIN="yes"/>
+<node CREATED="1533915472186" ID="ID_1748932158" MODIFIED="1533915479325" TEXT="GuiFeedback w&#xfc;rde auch gehen"/>
+<node CREATED="1533915480649" ID="ID_846895155" MODIFIED="1533915485628" TEXT="aber klingt nicht so sch&#xf6;n"/>
+<node CREATED="1533915486336" ID="ID_627537189" MODIFIED="1533915508660" TEXT="und ist doppeldeutig">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...es k&#246;nnte auch den Feedback des Users meinen
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538267874378" ID="ID_1732454504" MODIFIED="1538267888571" TEXT="Umbenennen in GuiResponse">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
 </node>
 <node CREATED="1484877839299" HGAP="23" ID="ID_957622878" MODIFIED="1518487921041" TEXT="Asynchrones Protokoll" VSHIFT="1">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1484877856640" ID="ID_1256835676" MODIFIED="1518487921041" TEXT="bedenke: alle Aktionen m&#xfc;ssen in den Event-Thread"/>
 <node CREATED="1484877868015" ID="ID_1612427727" MODIFIED="1518487921041" TEXT="&#xfc;ber die Rolle des GUI-Modells nachdenken!"/>
 </node>
-<node CREATED="1481502320065" ID="ID_1298358905" MODIFIED="1518487921041" TEXT="macht bisher der GuiRunner" VSHIFT="17">
+<node COLOR="#338800" CREATED="1481502305995" FOLDED="true" ID="ID_1943234904" MODIFIED="1538268138105" TEXT="direkt vom UiManager betrieben">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1481502320065" HGAP="-23" ID="ID_1298358905" MODIFIED="1538267995502" TEXT="bisher vom GuiRunner betrieben" VSHIFT="-26">
 <icon BUILTIN="info"/>
 <node CREATED="1481502327528" ID="ID_75293128" MODIFIED="1518487921041" TEXT="das ist ohnehin schlecht">
 <richcontent TYPE="NOTE"><html>
@@ -320,13 +365,11 @@
 <node CREATED="1481502335583" ID="ID_1245191241" MODIFIED="1518487921041" TEXT="Felder im GuiRunner sollten noexcept sein">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1484793048273" ID="ID_66499328" MODIFIED="1537532341697" TEXT="verschoben">
-<arrowlink COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-127;0;" ID="Arrow_ID_693735378" STARTARROW="None" STARTINCLINATION="-99;38;"/>
+<node CREATED="1484793048273" ID="ID_66499328" MODIFIED="1538268004486" TEXT="verschoben">
+<arrowlink COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="6;-96;" ID="Arrow_ID_693735378" STARTARROW="None" STARTINCLINATION="-105;33;"/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1481502305995" ID="ID_1943234904" MODIFIED="1518487921042" TEXT="direkt vom UiManager betrieben">
-<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484793113472" ID="ID_221612387" MODIFIED="1518487921042" TEXT="Lebenszyklus nochmal pr&#xfc;fen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484797253856" FOLDED="true" ID="ID_226245696" MODIFIED="1538265606275" TEXT="GUI start sauber">
@@ -547,8 +590,7 @@
       Ein zu fr&#252;her bzw. zu sp&#228;ter Aufruf <i>&quot;f&#228;llt einfach hinten runter&quot;</i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -562,13 +604,12 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1484793022924" ID="ID_1019455888" MODIFIED="1537532341698" TEXT="neuer Facade-Kontext">
-<linktarget COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="-127;0;" ID="Arrow_ID_693735378" SOURCE="ID_66499328" STARTARROW="None" STARTINCLINATION="-99;38;"/>
+<node CREATED="1484793022924" HGAP="36" ID="ID_1019455888" MODIFIED="1538268017820" TEXT="neuer Facade-Kontext" VSHIFT="-8">
+<linktarget COLOR="#4072ad" DESTINATION="ID_1019455888" ENDARROW="Default" ENDINCLINATION="6;-96;" ID="Arrow_ID_693735378" SOURCE="ID_66499328" STARTARROW="None" STARTINCLINATION="-105;33;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1501866627055" ID="ID_1521184600" MODIFIED="1518487921045" TEXT="RAII-Stil"/>
 <node CREATED="1501866591164" ID="ID_751026549" MODIFIED="1518487921045" TEXT="&#xf6;ffnet/schlie&#xdf;t die &#xf6;ffentlichen Interfaces"/>
 </node>
-</node>
 <node CREATED="1481502251450" HGAP="96" ID="ID_1125529151" MODIFIED="1518487921045" TEXT="m&#xf6;glicher Race" VSHIFT="16">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1484797174890" ID="ID_986391148" MODIFIED="1518487921045" TEXT="triggerShutdown() kommt bevor GuiNotification offen ist">
@@ -621,13 +662,14 @@
 </html></richcontent>
 </node>
 </node>
+</node>
 <node COLOR="#435e98" CREATED="1484797646771" HGAP="44" ID="ID_1605520996" MODIFIED="1538263574976" TEXT="Ausgestaltung" VSHIFT="10">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501859455212" ID="ID_751494565" MODIFIED="1518487921045" TEXT="Lebenszyklus">
 <node CREATED="1484797663121" ID="ID_134980216" MODIFIED="1518487921045" TEXT="braucht Bus-Connection">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1484797863862" ID="ID_464230340" MODIFIED="1518487921045" TEXT="zum Controller machen">
-<icon BUILTIN="help"/>
+<node CREATED="1484797863862" FOLDED="true" ID="ID_464230340" MODIFIED="1538268217733" TEXT="zum Controller machen?">
+<icon BUILTIN="button_cancel"/>
 <node CREATED="1484797872109" ID="ID_1877007933" MODIFIED="1518487921045" TEXT="Controller ist Tangible"/>
 <node CREATED="1484797878364" ID="ID_93289471" MODIFIED="1518487921045" TEXT="hat damit automatisch BusTerm"/>
 <node CREATED="1484799604429" ID="ID_1141687282" MODIFIED="1518487921045" TEXT="Design-Problem: sinnvolles Diff">
@@ -658,9 +700,11 @@
 <icon BUILTIN="button_cancel"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1484875946312" ID="ID_271363232" MODIFIED="1518487921046" TEXT="ist ein BusTerm">
+<node COLOR="#338800" CREATED="1484875946312" FOLDED="true" ID="ID_271363232" MODIFIED="1538268188753" TEXT="ist ein BusTerm">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1484875959342" ID="ID_1202046492" MODIFIED="1518487921046" TEXT="nur unidirektional zum Bus verbunden"/>
+<node CREATED="1484875959342" ID="ID_1202046492" MODIFIED="1538268186367" TEXT="nur unidirektional zum Bus verbunden">
+<icon BUILTIN="info"/>
+</node>
 <node CREATED="1484875968557" ID="ID_1406569407" MODIFIED="1518487921046" TEXT="ist hier genau angemessen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -668,7 +712,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1484799525344" ID="ID_640788614" MODIFIED="1525124214729" TEXT="mu&#xdf; sauber vom Nexus disconnecten">
+<node COLOR="#338800" CREATED="1484799525344" FOLDED="true" ID="ID_640788614" MODIFIED="1538268229556" TEXT="mu&#xdf; sauber vom Nexus disconnecten">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#ff0000" CREATED="1484799538686" ID="ID_1136883698" MODIFIED="1518487921046" TEXT="tut es nicht">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -709,7 +753,7 @@
 </html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1484802745625" ID="ID_375871642" MODIFIED="1518487921046" TEXT="Heisenbug">
+<node CREATED="1484802745625" FOLDED="true" ID="ID_375871642" MODIFIED="1538268103533" TEXT="Heisenbug">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_375871642" ENDARROW="Default" ENDINCLINATION="-164;-16;" ID="Arrow_ID_896120556" SOURCE="ID_1922412139" STARTARROW="None" STARTINCLINATION="345;-16;"/>
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1484802752728" ID="ID_634426848" MODIFIED="1518487921046" TEXT="passiert beim Aufruf des TerminationHandle"/>
@@ -824,7 +868,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node COLOR="#338800" CREATED="1484876143949" ID="ID_558559630" MODIFIED="1531584013538" TEXT="mu&#xdf; Nachrichten explizit &#xfc;bergeben">
+<node COLOR="#338800" CREATED="1484876143949" FOLDED="true" ID="ID_558559630" MODIFIED="1538268172028" TEXT="mu&#xdf; Nachrichten explizit &#xfc;bergeben">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1531583488816" ID="ID_928145965" MODIFIED="1531583491643" TEXT="Dispatcher"/>
 <node CREATED="1531583492656" ID="ID_1195055295" MODIFIED="1531583502490" TEXT="Queue mit explizitem Mutex-Locking"/>
@@ -834,7 +878,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1484797900185" ID="ID_1895372084" MODIFIED="1518487921047" TEXT="Protokoll zum Schlie&#xdf;en">
+<node CREATED="1484797900185" FOLDED="true" ID="ID_1895372084" MODIFIED="1538268258465" TEXT="Protokoll zum Schlie&#xdf;en">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1484797920846" ID="ID_472054508" MODIFIED="1518487921047" TEXT="sollte Nachricht auf dem Bus sein">
 <icon BUILTIN="idea"/>
@@ -922,10 +966,10 @@
 <node CREATED="1503670572980" ID="ID_599888416" MODIFIED="1538263469663" TEXT="einzige Ausnahme">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1503670585794" FOLDED="true" ID="ID_1806860698" MODIFIED="1538263469663" TEXT="speziellen Hanlder verwenden">
+<node CREATED="1503670585794" ID="ID_1806860698" MODIFIED="1538268339103" TEXT="speziellen Handler verwenden">
 <arrowlink COLOR="#6d8097" DESTINATION="ID_376091136" ENDARROW="Default" ENDINCLINATION="129;8;" ID="Arrow_ID_206696117" STARTARROW="None" STARTINCLINATION="147;13;"/>
 <icon BUILTIN="yes"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203543467" FOLDED="true" ID="ID_285166941" MODIFIED="1533608415749" TEXT="TODO">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203543467" ID="ID_285166941" MODIFIED="1538268298994" TEXT="TODO">
 <icon BUILTIN="bell"/>
 <node CREATED="1504203570199" ID="ID_577706469" MODIFIED="1518487921048" TEXT="welche Fehler kann Diff-Anwendung werfen?">
 <icon BUILTIN="help"/>
@@ -1400,8 +1444,7 @@
       mehr erscheint mir nicht sinnvoll; <i>behandeln</i>&#160;kann man solche Fehler ohnehin nicht.<br /><br />
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 </node>
@@ -1557,42 +1600,6 @@
 <node CREATED="1533911897569" ID="ID_1876551933" MODIFIED="1533911919154" TEXT="ID ist somit Teil des Interface"/>
 <node CREATED="1533911919814" ID="ID_558535868" MODIFIED="1533911928937" TEXT="welches Interface?">
 <node CREATED="1533915325903" ID="ID_1053391149" MODIFIED="1533915334817" TEXT="GuiNotification">
-<node CREATED="1533915343891" ID="ID_1650034681" MODIFIED="1538263771121" TEXT="Nebengedanke: pa&#xdf;t der Name?">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1533915353434" ID="ID_1231213592" MODIFIED="1533915424732" TEXT="ist mehr als &quot;notification&quot;?">
-<icon BUILTIN="button_cancel"/>
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1533915365545" ID="ID_892577975" MODIFIED="1533915367959" TEXT="nein">
-<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
-<icon BUILTIN="yes"/>
-</node>
-<node CREATED="1533915439279" ID="ID_285136109" MODIFIED="1533915452025" TEXT="Notification auf Architektur-Level"/>
-</node>
-<node CREATED="1533915371872" ID="ID_1003239787" MODIFIED="1533915380406" TEXT="GuiFeedback?">
-<icon BUILTIN="idea"/>
-</node>
-<node CREATED="1533915407171" ID="ID_728064464" MODIFIED="1533915412457" TEXT="GuiReaction">
-<icon BUILTIN="idea"/>
-</node>
-<node CREATED="1538263882239" ID="ID_1273122422" MODIFIED="1538263888584" TEXT="GuiResponse">
-<icon BUILTIN="idea"/>
-</node>
-<node CREATED="1533915454893" ID="ID_877610316" MODIFIED="1533915459256" TEXT="der Name ist ad&#xe4;quat">
-<node CREATED="1533915472186" ID="ID_1748932158" MODIFIED="1533915479325" TEXT="GuiFeedback w&#xfc;rde auch gehen"/>
-<node CREATED="1533915480649" ID="ID_846895155" MODIFIED="1533915485628" TEXT="aber klingt nicht so sch&#xf6;n"/>
-<node CREATED="1533915486336" ID="ID_627537189" MODIFIED="1533915508660" TEXT="und ist doppeldeutig">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...es k&#246;nnte auch den Feedback des Users meinen
-    </p>
-  </body>
-</html></richcontent>
-</node>
-</node>
-</node>
 <node CREATED="1533915683535" ID="ID_1976057171" MODIFIED="1533915688561" TEXT="w&#xe4;re m&#xf6;glich"/>
 <node CREATED="1533915689317" ID="ID_689429680" MODIFIED="1533915696616" TEXT="hat aber anderen Scope"/>
 </node>
@@ -1804,7 +1811,7 @@
 <node COLOR="#338800" CREATED="1504203754175" ID="ID_580465154" MODIFIED="1538263469667" TEXT="Fehler-Level erkennen">
 <arrowlink DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537754684692" HGAP="65" ID="ID_494305022" MODIFIED="1538263469667" TEXT="Rolle im API kl&#xe4;ren" VSHIFT="-12">
+<node COLOR="#338800" CREATED="1537754684692" HGAP="65" ID="ID_494305022" MODIFIED="1538266179499" TEXT="Rolle im API kl&#xe4;ren" VSHIFT="-12">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -1818,7 +1825,10 @@
     </p>
   </body>
 </html></richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538266114512" ID="ID_1994199296" MODIFIED="1538266139416" TEXT="Enum nur noch im NotificationService"/>
+<node CREATED="1538266140789" ID="ID_965920969" MODIFIED="1538266163157" TEXT="Widget: drei einzelne API-Methoden"/>
+<node CREATED="1538266165305" ID="ID_318361090" MODIFIED="1538266174884" TEXT="Controller: in Protokoll integriert"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1538263469667" TEXT="Operationen">
@@ -1847,7 +1857,7 @@
 </html></richcontent>
 </node>
 </node>
-<node COLOR="#990000" CREATED="1535563193014" FOLDED="true" ID="ID_1551506828" MODIFIED="1538263469668" TEXT="Problem: dehnt sich nicht aus">
+<node COLOR="#990000" CREATED="1535563193014" FOLDED="true" ID="ID_1551506828" MODIFIED="1538277321257" TEXT="Problem: dehnt sich nicht aus">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1535563256725" ID="ID_327777357" MODIFIED="1535563288805" TEXT="scrolled pane belegt nur minimal notwendigen Platz"/>
 <node CREATED="1535563300695" ID="ID_862867674" MODIFIED="1535563311905" TEXT="egal ob initial zugeklappt (=default) oder aufgeklappt"/>
@@ -2037,8 +2047,25 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1538263469668" TEXT="clearAll">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534725101578" ID="ID_974315967" MODIFIED="1538277245929" TEXT="clearAll">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538277182898" ID="ID_1432000446" MODIFIED="1538277242242" TEXT="Marker-Tabelle leeren"/>
+<node CREATED="1538277192232" ID="ID_94588950" MODIFIED="1538277241203" TEXT="Platzhalter-Zeile">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...um den Umstand zu dokumentieren,
+    </p>
+    <p>
+      da&#223; hier ## Zeilen gel&#246;scht wurden
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1538263469668" TEXT="addMsg">
 <icon BUILTIN="button_ok"/>
@@ -2684,9 +2711,9 @@
 <arrowlink COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1538263469672" TEXT="doReset()">
-<icon BUILTIN="pencil"/>
-<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1538263469672" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;&quot;">
+<node COLOR="#338800" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1538277265473" TEXT="doReset()">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1534120150458" ID="ID_1390376483" MODIFIED="1538277278304" TEXT="&quot;Clear log contents, collapse widget, clear error state&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
@@ -2771,7 +2798,7 @@
 </node>
 <node COLOR="#435e98" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1538263469673" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
-<node COLOR="#338800" CREATED="1533689235200" ID="ID_1760873318" MODIFIED="1538263469673" TEXT="non-modal TestControl">
+<node COLOR="#338800" CREATED="1533689235200" FOLDED="true" ID="ID_1760873318" MODIFIED="1538263469673" TEXT="non-modal TestControl">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537836495530" ID="ID_182389429" MODIFIED="1538263469673" TEXT="per Men&#xfc;eintrag &#xf6;ffnen">
 <icon BUILTIN="button_ok"/>
@@ -2865,7 +2892,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689243871" ID="ID_1745090225" MODIFIED="1538263469674" TEXT="triggert Dummy-Command">
+<node COLOR="#338800" CREATED="1533689243871" FOLDED="true" ID="ID_1745090225" MODIFIED="1538263469674" TEXT="triggert Dummy-Command">
 <linktarget COLOR="#47ebbb" DESTINATION="ID_1745090225" ENDARROW="Default" ENDINCLINATION="119;0;" ID="Arrow_ID_372783230" SOURCE="ID_1206004" STARTARROW="None" STARTINCLINATION="-10;35;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1538220904703" HGAP="46" ID="ID_1997338106" MODIFIED="1538263469674" TEXT="definieren..." VSHIFT="31">
@@ -2884,7 +2911,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538263469674" TEXT="Aufruf via Notification_Facade">
+<node COLOR="#338800" CREATED="1533689255174" FOLDED="true" ID="ID_821013695" MODIFIED="1538263469674" TEXT="Aufruf via Notification_Facade">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1538263469674" TEXT="displayInfo">
 <icon BUILTIN="button_ok"/>
@@ -3022,7 +3049,7 @@
 <arrowlink COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" STARTARROW="None" STARTINCLINATION="1509;156;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1538263469676" TEXT="dokumentieren und Ticket #1102 schlie&#xdf;en">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1538266369889" TEXT="dokumentieren und Ticket #1047 schlie&#xdf;en">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>

From 23430f880052500c1fd2ebba7786932d39f6c7e5 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 30 Sep 2018 03:38:46 +0200
Subject: [PATCH 119/178] NotificationDisplay: fix improper state mark for
 "expand" (WIP)

test_meta_markAction always produces a state mark with payload type string.
However, the model::Tangible expects a bool payload when handling the "expand" mark.

- add diagnostics to lib::variant to indicate expected and actual payload type
- attempt to fix with boost::lexical_cast; this is insufficient, since
  you'd expect such a function to understand "true" and "false" etc.

Moreover, raising this exception causes emergency shutdown, which
flounders due to triggering a ZombieCheck. Interesting.
---
 src/lib/variant.hpp       | 28 +++++++++++++--
 src/proc/cmd/meta-cmd.cpp |  6 +++-
 wiki/thinkPad.ichthyo.mm  | 73 ++++++++++++++++++++++++++++++++++++++-
 3 files changed, 102 insertions(+), 5 deletions(-)

diff --git a/src/lib/variant.hpp b/src/lib/variant.hpp
index 87621e14b..fe7720055 100644
--- a/src/lib/variant.hpp
+++ b/src/lib/variant.hpp
@@ -341,15 +341,16 @@ namespace lib {
           
           
           
+          static string indicateTypeMismatch (Buffer&);
+          
+          
           static Buff&
           downcast (Buffer& b)
             {
               Buff* buff = dynamic_cast<Buff*> (&b);
               
               if (!buff)
-                throw error::Logic("Variant type mismatch: "
-                                   "the given variant record does not hold "
-                                   "a value of the type requested here"
+                throw error::Logic(indicateTypeMismatch(b)
                                   ,error::LERR_(WRONG_TYPE));
               else
                return *buff;
@@ -550,6 +551,27 @@ namespace lib {
     return util::typedString (this->access());
   }
   
+  /**
+   * error message when accessing the variant content with wrong type assumptions.
+   * @remark while this diagnostics can be crucial for finding bugs, we avoid
+   *  including \ref format-string.hpp, since lib::Variant is used pervasively
+   *  as part of lib::diff::GenNode. Especially in development builds, we observed
+   *  a tangible leverage on executable size. Thus we implement the protection
+   *  against follow-up exceptions explicitly here.
+   */
+  template<typename TYPES>
+  template<typename TY>
+  inline string
+  Variant<TYPES>::Buff<TY>::indicateTypeMismatch(Variant<TYPES>::Buffer& target)
+  {
+    try {
+        return "Variant type mismatch: expected value of type «"
+             + lib::meta::typeStr<TY>()+"», "
+             + "however the given variant record is "
+             + string{target};
+      }
+    catch(...) { return lib::meta::FAILURE_INDICATOR; }
+  }
   
   
 }// namespace lib
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 6bed40e8c..25754046f 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -45,6 +45,7 @@
 #include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 //#include "lib/symbol.hpp"
 
+#include <boost/lexical_cast.hpp>
 #include <string>
 
 using lib::hash::LuidH;
@@ -58,6 +59,7 @@ using lib::diff::GenNode;
 //using util::cStr;
 using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 using std::string;
+using boost::lexical_cast;
 
 
 namespace proc {
@@ -211,7 +213,9 @@ COMMAND_DEFINITION (test_meta_markAction)
     def.operation ([](string actionID, string message)
                       {
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
-                        GuiNotification::facade().mark (errorLogID, GenNode{actionID, message});
+                        GuiNotification::facade().mark (errorLogID
+                                                       ,actionID=="expand"? GenNode{actionID, lexical_cast<bool> (message)}  ///////////FIXME : lexical_cast is not suitable. We need a generic bool parse function!
+                                                                          : GenNode{actionID, message});
                       })
        .captureUndo ([](string actionID, string message) -> string
                       {
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 95c843a50..f5e4089e8 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2911,7 +2911,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689255174" FOLDED="true" ID="ID_821013695" MODIFIED="1538263469674" TEXT="Aufruf via Notification_Facade">
+<node COLOR="#338800" CREATED="1533689255174" ID="ID_821013695" MODIFIED="1538281518697" TEXT="Aufruf via Notification_Facade">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537835197558" ID="ID_1477928890" MODIFIED="1538263469674" TEXT="displayInfo">
 <icon BUILTIN="button_ok"/>
@@ -2944,6 +2944,77 @@
 </node>
 <node COLOR="#338800" CREATED="1538239665856" ID="ID_518505874" MODIFIED="1538263469675" TEXT="EXPAND">
 <icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281532767" ID="ID_1335570495" MODIFIED="1538281631433" TEXT="Fehler: mu&#xdf; eigens separate GenNode bauen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...weil der Payload-Typ f&#252;r diesen Aufruf bool ist,
+    </p>
+    <p>
+      und nicht string wie f&#252;r alle anderen state marks
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281608933" ID="ID_584897977" MODIFIED="1538281622963" TEXT="mu&#xdf; bool parsen...">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538281635897" ID="ID_562945035" MODIFIED="1538281651821" TEXT="lexical_cast geht nicht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      k
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1538281655774" ID="ID_1847834965" MODIFIED="1538281662977" TEXT="kann nur 1 und 0"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281664349" ID="ID_1454517361" MODIFIED="1538281687765" TEXT="interessanter Folgefehler">
+<icon BUILTIN="broken-line"/>
+<node CREATED="1538281691097" ID="ID_1911272932" MODIFIED="1538281757024" TEXT="exception killt ProcDispatcher (das ist OK)">
+<icon BUILTIN="full-1"/>
+</node>
+<node CREATED="1538281708919" ID="ID_1611370738" MODIFIED="1538281759509" TEXT="error state ist gesetzt">
+<icon BUILTIN="full-2"/>
+</node>
+<node CREATED="1538281715646" ID="ID_1541383645" MODIFIED="1538281762796" TEXT="emergency shutdown">
+<icon BUILTIN="full-3"/>
+</node>
+<node CREATED="1538281733340" ID="ID_1326729675" MODIFIED="1538281765434" TEXT="f&#xe4;hrt das GUI runter">
+<icon BUILTIN="full-4"/>
+</node>
+<node CREATED="1538281741419" ID="ID_1964821489" MODIFIED="1538281775756">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ein <b>ZombieCheck</b>&#160;spricht an
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="full-5"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281782245" ID="ID_888818129" MODIFIED="1538281805087" TEXT="welcher...?">
+<icon BUILTIN="help"/>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281788117" ID="ID_1747014683" MODIFIED="1538281816152" TEXT="wie konnte das passieren....">
+<icon BUILTIN="help"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1537835859576" ID="ID_968868056" MODIFIED="1538263469675" TEXT="CLEAR_ERR">
 <icon BUILTIN="button_ok"/>

From 77c9a6a1daeb20bc5ae89eb3302e4c611d683304 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 1 Oct 2018 03:36:41 +0200
Subject: [PATCH 120/178] FailureHandling: investigate crash in emergency
 shutdown

As it turns out, several problems reinforce each other
- lumiera error does not properly propagate the cause message
- our test/dummy code does not check the ExecResult
- thus the exception is detected rather accidentally, when entring the next sync/wait state
- emergency shutdown is chaotic in its very nature (this is well known...)
- but especially triggerShutdown is not airtight and might die...
- causing the shutdown to hang....

And last but not least, a ZombieCheck tripwire got triggered,
but unfortunately I was unable to get hold of the zombie iteself
---
 src/lib/error-exception.cpp |   3 +-
 wiki/thinkPad.ichthyo.mm    | 232 ++++++++++++++++++++++++++++++++++++
 2 files changed, 234 insertions(+), 1 deletion(-)

diff --git a/src/lib/error-exception.cpp b/src/lib/error-exception.cpp
index a1e4c64ce..67b54a001 100644
--- a/src/lib/error-exception.cpp
+++ b/src/lib/error-exception.cpp
@@ -116,7 +116,8 @@ namespace lumiera {
     , desc_{description}
     , cause_{extractCauseMsg(cause)}
     {
-      lumiera_error_set (this->id_, description.c_str());
+      string detailInfo{description + (isnil(cause_)? "" : " | cause = "+cause_)};
+      lumiera_error_set (this->id_, detailInfo.c_str());
     }
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f5e4089e8..1354dab03 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2981,12 +2981,240 @@
 <icon BUILTIN="broken-line"/>
 <node CREATED="1538281691097" ID="ID_1911272932" MODIFIED="1538281757024" TEXT="exception killt ProcDispatcher (das ist OK)">
 <icon BUILTIN="full-1"/>
+<node CREATED="1538316932460" ID="ID_532178252" MODIFIED="1538317666896" TEXT="warum l&#xe4;uft das &#xfc;ber HandlingPattern?">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538316947954" ID="ID_299870867" MODIFIED="1538316961132" TEXT="dachte, wir rufen Dummy-Commands direkt auf"/>
+<node CREATED="1538317636429" ID="ID_555373711" MODIFIED="1538317640326" TEXT="tun wir auch">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1538317641621" ID="ID_1808679252" MODIFIED="1538317662923" TEXT="aber proc::Command verwendet Default-Pattern">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1538316971295" ID="ID_1865988337" MODIFIED="1538316977546" TEXT="Abgreifen der Fehler-Info">
+<node CREATED="1538316982046" ID="ID_252583984" MODIFIED="1538317000205" STYLE="fork" TEXT="im std::exception-Handler">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1538317002019" ID="ID_957898086" MODIFIED="1538317225421" TEXT="lumiera::Error">
+<icon BUILTIN="forward"/>
+<node CREATED="1538356729852" FOLDED="true" ID="ID_435503551" MODIFIED="1538356803291" TEXT="wird die cause korrekt &#xfc;bernommen?">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538356756336" ID="ID_342508440" MODIFIED="1538356782737" TEXT="ja... works as designed">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1538356761143" ID="ID_1729059066" MODIFIED="1538356797681">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Konzept ist <i>nicht</i>, sie gleich in die description zu &#252;bernehmen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1538317075985" ID="ID_712272839" MODIFIED="1538357310679" TEXT="Problem: lumiera Error-Flag &#xfc;bernimmt nur lokale description">
+<linktarget COLOR="#c4588d" DESTINATION="ID_712272839" ENDARROW="Default" ENDINCLINATION="577;63;" ID="Arrow_ID_428347507" SOURCE="ID_313278942" STARTARROW="None" STARTINCLINATION="341;0;"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538317102405" ID="ID_1770156379" MODIFIED="1538317106320" TEXT="und die ist hier leer"/>
+<node CREATED="1538317107765" ID="ID_1730697631" MODIFIED="1538317122431" TEXT="sollte unsere what()-Methode nutzen"/>
+<node CREATED="1538317157966" ID="ID_600719509" MODIFIED="1538317169480" TEXT="Problem: Storage">
+<node CREATED="1538317171852" ID="ID_1284960080" MODIFIED="1538317570097" TEXT="verwende Symbol">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1538317176347" ID="ID_1919150970" MODIFIED="1538317201070" TEXT="wat soll der jeiz">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das System ist ohnehin schon anget&#246;tet
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
+<node CREATED="1538317544954" ID="ID_1154202054" MODIFIED="1538317573410">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      keines! Impl verwendet <b>strdup</b>()
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538318187819" ID="ID_870746075" MODIFIED="1538318214241" TEXT="Problem: ExecResult nicht ausgewertet">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538318216016" ID="ID_1444888451" MODIFIED="1538318226226" TEXT="Exception wird nicht ausgeworfen"/>
+<node CREATED="1538318227150" ID="ID_956176289" MODIFIED="1538318230994" TEXT="Loop l&#xe4;uft weiter"/>
+<node CREATED="1538318231726" ID="ID_373021764" MODIFIED="1538318237104" TEXT="aber Error-State ist gesetzt">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538319081491" ID="ID_599527376" MODIFIED="1538319687663" TEXT="das ist ein Logik-Fehler">
+<linktarget COLOR="#e54f84" DESTINATION="ID_599527376" ENDARROW="Default" ENDINCLINATION="-9;283;" ID="Arrow_ID_1159234155" SOURCE="ID_1536519871" STARTARROW="None" STARTINCLINATION="411;-47;"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1538319099993" ID="ID_1362819933" MODIFIED="1538319118146" TEXT="da Exception in einem ExecResult gespeicher ist"/>
+<node CREATED="1538319119398" ID="ID_1062993543" MODIFIED="1538319129753" TEXT="...gilt sie nicht mehr als &quot;schwebend&quot;"/>
+<node CREATED="1538319130725" ID="ID_1118929704" MODIFIED="1538319141433" TEXT="der Aufrufer hat volle Freiheit, sie zu ignorieren">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+</node>
+<node CREATED="1538318997502" ID="ID_1664562023" MODIFIED="1538319007145" TEXT="wacht nach max-timeout (f&#xfc;r Builder auf)"/>
+<node CREATED="1538319008117" ID="ID_73040538" MODIFIED="1538319025223" TEXT="unser Object-Monitor pr&#xfc;ft beim Aufwachen den Error-state">
+<node CREATED="1538319150290" ID="ID_313278942" MODIFIED="1538319185279" TEXT="und wirft hier nur noch die verk&#xfc;rzte Description aus">
+<arrowlink COLOR="#c4588d" DESTINATION="ID_712272839" ENDARROW="Default" ENDINCLINATION="577;63;" ID="Arrow_ID_428347507" STARTARROW="None" STARTINCLINATION="341;0;"/>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538319193716" ID="ID_1785359217" MODIFIED="1538319206846" TEXT="...das erkl&#xe4;rt, warum wir die Ursache nicht sehen"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538319456089" ID="ID_342927310" MODIFIED="1538319493900" TEXT="Problem: Handler im ProcDispatcher behandelt nur LumieraException speziell">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538319495420" ID="ID_39746243" MODIFIED="1538319501623" TEXT="das stellt zwar hier kein Problem dar"/>
+<node CREATED="1538319502331" ID="ID_1092806315" MODIFIED="1538319511413" TEXT="und es ist noch der unspezifische Handler da"/>
+<node CREATED="1538319512146" ID="ID_672632423" MODIFIED="1538319533231" TEXT="aber: problem.what() geht verloren bei std::exception">
+<icon BUILTIN="forward"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538319535006" ID="ID_403817336" MODIFIED="1538319566067" TEXT="Fix: Handler kann genausogut auf std::exception abstellen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn wir verwenden das Lumiera-Exception-API gar nicht
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1538281708919" ID="ID_1611370738" MODIFIED="1538281759509" TEXT="error state ist gesetzt">
 <icon BUILTIN="full-2"/>
+<node CREATED="1538319670284" ID="ID_1536519871" MODIFIED="1538319694106" TEXT="gekl&#xe4;rt warum">
+<arrowlink COLOR="#e54f84" DESTINATION="ID_599527376" ENDARROW="Default" ENDINCLINATION="-9;283;" ID="Arrow_ID_1159234155" STARTARROW="None" STARTINCLINATION="411;-47;"/>
+</node>
+<node CREATED="1538319701680" ID="ID_1856422179" MODIFIED="1538319729311" TEXT="...und beim Trigger ist er schon nicht mehr gesetzt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der Handler im ProcDispatcher sorgt daf&#252;r
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
 </node>
 <node CREATED="1538281715646" ID="ID_1541383645" MODIFIED="1538281762796" TEXT="emergency shutdown">
 <icon BUILTIN="full-3"/>
+<node CREATED="1538320876787" ID="ID_1528655784" MODIFIED="1538320883630" TEXT="Subsystem-Shutdown">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538320884769" ID="ID_707965628" MODIFIED="1538357472940" TEXT="Problem: re-entrance Bug">
+<icon BUILTIN="hourglass"/>
+<node CREATED="1538320904127" ID="ID_1958182633" MODIFIED="1538320932319" TEXT="shutdownAll() ruft indirekt/rekursiv sigTerm()">
+<node COLOR="#435e98" CREATED="1538321043388" ID="ID_1860084270" MODIFIED="1538348459443" TEXT="fragt sich, warum">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1538321059074" ID="ID_1754741024" MODIFIED="1538321069733" TEXT="Vermutung: degeneriertes Subsystem">
+<node CREATED="1538321102148" ID="ID_862751524" MODIFIED="1538321102148">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...welches keinen separaten Thread aufruft....?
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1538321104964" ID="ID_990799680" MODIFIED="1538321198833" TEXT="...und daher das Lock auf dem Subsystem-Runner bekommt">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1538348464066" ID="ID_1973011292" MODIFIED="1538348489286" TEXT="genau so isses (...und ich hatte vor Jahren schon ein Ticket aufgemacht)">
+<icon BUILTIN="smiley-neutral"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538348427367" ID="ID_1696230148" MODIFIED="1538348438054" TEXT="#814 subsystem-runner: re-entrance in triggerShutdown">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1538320933291" ID="ID_573672353" MODIFIED="1538320975419" TEXT="removeall auf Collection, die grade iteriert wird">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      n&#228;mlich im shutdownAll() weiter oben im Stack
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1538320996027" ID="ID_1914116148" MODIFIED="1538321019772" TEXT="STL verh&#xe4;lt sich hier anscheinend gutm&#xfc;tig">
+<icon BUILTIN="idea"/>
+<node CREATED="1538348518843" ID="ID_613222856" MODIFIED="1538348551658" TEXT="zwar wird einer Iteration ggfs das aktuelle Element &quot;unter den F&#xfc;&#xdf;en&quot; weggezogen..."/>
+<node CREATED="1538348553006" ID="ID_1259043030" MODIFIED="1538348566936" TEXT="so da&#xdf; dann die n&#xe4;chste Iteration das &#xfc;bern&#xe4;chste Element bearbeitet"/>
+<node CREATED="1538348577763" ID="ID_830173416" MODIFIED="1538348597359">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      aber <i>genau der andere Thread,</i>&#160;der das gemacht hat...
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1538348598352" ID="ID_1090786435" MODIFIED="1538348613234" TEXT="iteriert als n&#xe4;chstes ebenfalls &#xfc;ber alle Subsysteme"/>
+<node CREATED="1538348625836" ID="ID_507678251" MODIFIED="1538348638230" TEXT="Fazit: Killen bis zur ersch&#xf6;pfung"/>
+<node CREATED="1538348639034" ID="ID_1799262325" MODIFIED="1538348644065" TEXT="l&#xe4;uft">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538322674991" ID="ID_371763142" MODIFIED="1538357494258" TEXT="Problem: triggerShutdown nicht wasserdicht">
+<icon BUILTIN="pencil"/>
+<node CREATED="1538322708227" ID="ID_1994833744" MODIFIED="1538322772297" TEXT="kann sterben">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1538322737871" ID="ID_513027050" MODIFIED="1538322769742" TEXT="wenn Exceptions auftreten">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538322751893" ID="ID_812762539" MODIFIED="1538322767299" TEXT="z.B. wenn Gui-Facade schon zu ist">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1538322721289" ID="ID_156783463" MODIFIED="1538322775541" TEXT="dann l&#xe4;uft das aufrufende sigTerm nicht zuende">
+<icon BUILTIN="broken-line"/>
+</node>
+</node>
+</node>
+<node CREATED="1538357436900" ID="ID_1015844071" MODIFIED="1538357455069" TEXT="der ganze Subsystem-Runner sollte &#xfc;berarbeitet werden">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538357457297" ID="ID_1518496949" MODIFIED="1538357462577" TEXT="#1177 Subsytem-Runner design rework">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node CREATED="1538281733340" ID="ID_1326729675" MODIFIED="1538281765434" TEXT="f&#xe4;hrt das GUI runter">
 <icon BUILTIN="full-4"/>
@@ -3006,6 +3234,10 @@
 <icon BUILTIN="full-5"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281782245" ID="ID_888818129" MODIFIED="1538281805087" TEXT="welcher...?">
 <icon BUILTIN="help"/>
+<node CREATED="1538326229581" ID="ID_687910017" MODIFIED="1538326243254" TEXT="mit dem Debugger nicht zu fassen...."/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538326244075" ID="ID_362650638" MODIFIED="1538326258434" TEXT="Aufgabe: Zobmie-ID statisch speichern">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281788117" ID="ID_1747014683" MODIFIED="1538281816152" TEXT="wie konnte das passieren....">
 <icon BUILTIN="help"/>

From 70c8718258b0c700c69471fbf63f26aaeae1e948 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 1 Oct 2018 03:49:54 +0200
Subject: [PATCH 121/178] FailureHandling: rectify shortcomings in Proc-Command
 error handling

and especially our provisional dummy code to execute some commands "right here"
should also check and raise captured exceptions from command invocation
---
 src/common/subsystem-runner.hpp       |  3 ++-
 src/proc/control/handling-pattern.cpp |  8 ++++--
 src/proc/control/proc-dispatcher.cpp  |  7 +++---
 wiki/thinkPad.ichthyo.mm              | 36 +++++++++++++++++++++++++--
 4 files changed, 46 insertions(+), 8 deletions(-)

diff --git a/src/common/subsystem-runner.hpp b/src/common/subsystem-runner.hpp
index e933737f2..fe9808d1d 100644
--- a/src/common/subsystem-runner.hpp
+++ b/src/common/subsystem-runner.hpp
@@ -22,12 +22,13 @@
 
 
 /** @file subsystem-runner.hpp
- ** Manage execution of the independend [Subsystems](\ref subsys.hpp)
+ ** Manage execution of the independent [Subsystems](\ref subsys.hpp)
  ** of the Lumiera application. The SubsystemRunner is used by
  ** lumiera::AppState::init() for actually "performing" the various subsystems,
  ** as defined by their [Subsystem descriptors](\ref lumiera::Subsys). Together
  ** these parts define the lifecycle protocol.
  ** 
+ ** @todo   as of 2018, a design rework seems indicated eventually                  /////////////////////////TICKET #1177
  ** @remark While this facility is still pretty much the first implementation draft
  **         from 2008, it fulfilled our needs to express simple dependencies and to
  **         conduct a controlled shutdown in case of fatal problems. The operations
diff --git a/src/proc/control/handling-pattern.cpp b/src/proc/control/handling-pattern.cpp
index da1188175..043a25306 100644
--- a/src/proc/control/handling-pattern.cpp
+++ b/src/proc/control/handling-pattern.cpp
@@ -104,10 +104,14 @@ namespace control {
   /* ====== execution result state object ======= */
   
   
-  /** @note we just grab and retain the error message. */
+  /** @note just grab and retain the error message, but _clear_ the error flag.
+   *        Rationale: by packaging into the ExecResult, the excepton counts as treated.
+   */
   ExecResult::ExecResult (lumiera::Error const& problem)
     : log_(problem.what())
-  { }
+    {
+      lumiera_error(); // ensure error flag is cleared
+    }
   
   
   bool
diff --git a/src/proc/control/proc-dispatcher.cpp b/src/proc/control/proc-dispatcher.cpp
index 8098da914..c15ec1ce2 100644
--- a/src/proc/control/proc-dispatcher.cpp
+++ b/src/proc/control/proc-dispatcher.cpp
@@ -247,8 +247,8 @@ namespace control {
                   updateState();
                 }
             }
-          catch (lumiera::Error& problem)
-            {
+          catch (std::exception& problem)
+            {  // could also be lumiera::Error
               errorMsg = problem.what();
               lumiera_error();        // clear error flag
             }
@@ -304,7 +304,8 @@ namespace control {
               if (util::startsWith (string(cmd.getID()), "test"))
                 {
                   INFO (command, "+++ -------->>> bang!");
-                  cmd();
+                  auto resultState = cmd();
+                  resultState.maybeThrow();
                 }
               //////////////////////////////////////////////////////TODO : magic to invoke commands from unit tests
             }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 1354dab03..9940b6772 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -3194,8 +3194,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538322674991" ID="ID_371763142" MODIFIED="1538357494258" TEXT="Problem: triggerShutdown nicht wasserdicht">
-<icon BUILTIN="pencil"/>
+<node CREATED="1538322674991" ID="ID_371763142" MODIFIED="1538359354152" TEXT="Problem: triggerShutdown nicht wasserdicht">
+<icon BUILTIN="button_cancel"/>
 <node CREATED="1538322708227" ID="ID_1994833744" MODIFIED="1538322772297" TEXT="kann sterben">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1538322737871" ID="ID_513027050" MODIFIED="1538322769742" TEXT="wenn Exceptions auftreten">
@@ -3208,6 +3208,38 @@
 <node CREATED="1538322721289" ID="ID_156783463" MODIFIED="1538322775541" TEXT="dann l&#xe4;uft das aufrufende sigTerm nicht zuende">
 <icon BUILTIN="broken-line"/>
 </node>
+<node CREATED="1538359359513" ID="ID_874296398" MODIFIED="1538359369128" TEXT="Nein kein Problem">
+<icon BUILTIN="forward"/>
+<node CREATED="1538359370815" ID="ID_104358783" MODIFIED="1538359518690" TEXT="das Subsystem-Protokoll verlangt noexcept">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538359382397" ID="ID_1054464710" MODIFIED="1538359515533" TEXT="alle bekannten triggerShutdown sind so gekennzeichnet">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1538359397915" ID="ID_446614054" MODIFIED="1538359507892" TEXT="und wenn trotzdem eine Exception fliegt...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...dann sind wir sofort tot und das wird billigend in Kauf genommen.
+    </p>
+    <p>
+      So ist das tats&#228;chlich implementiert im Falle vom OutputDirector.
+    </p>
+    <p>
+      Der startet n&#228;mlich einen Thread erst als Supervisor f&#252;r den Shutdown.
+    </p>
+    <p>
+      Wenn das nun <i>wirklich</i>&#160;fehlschl&#228;gt, bleibt uns sinnvollerweise nur noch die Selbstmord-Option
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1538357436900" ID="ID_1015844071" MODIFIED="1538357455069" TEXT="der ganze Subsystem-Runner sollte &#xfc;berarbeitet werden">

From 4e94dfd4d9f30bfbe17987b3b98663187751ffcb Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 1 Oct 2018 05:51:21 +0200
Subject: [PATCH 122/178] FailureHandling: improved ZombieCheck

now capturing the Zombie's ID

==> surprise, its ClassLock<gui::interact::LocationQuery>
---
 src/lib/depend.hpp                 |   2 +-
 src/lib/sync-classlock.hpp         |   3 +-
 src/lib/zombie-check.hpp           |  33 ++++++++-
 tests/25fundamental.tests          |   5 ++
 tests/basics/zombie-check-test.cpp |  88 ++++++++++++++++++++++++
 wiki/thinkPad.ichthyo.mm           | 105 +++++++++++++++++++++++++----
 6 files changed, 219 insertions(+), 17 deletions(-)
 create mode 100644 tests/basics/zombie-check-test.cpp

diff --git a/src/lib/depend.hpp b/src/lib/depend.hpp
index 3dff59462..2a3e1c910 100644
--- a/src/lib/depend.hpp
+++ b/src/lib/depend.hpp
@@ -141,7 +141,7 @@ namespace lib {
       Deleter deleter_;
       
     public:
-      ZombieCheck zombieCheck;
+      ZombieCheck zombieCheck{util::typeStr<OBJ>()};
       
       DependencyFactory() = default;
      ~DependencyFactory()
diff --git a/src/lib/sync-classlock.hpp b/src/lib/sync-classlock.hpp
index 22acbaec8..abc581ce4 100644
--- a/src/lib/sync-classlock.hpp
+++ b/src/lib/sync-classlock.hpp
@@ -39,6 +39,7 @@
 
 #include "lib/nobug-init.hpp"
 #include "lib/zombie-check.hpp"
+#include "lib/meta/util.hpp"
 #include "lib/sync.hpp"
 
 
@@ -72,7 +73,7 @@ namespace lib {
       getPerClassMonitor()
         {
           static PerClassMonitor classMonitor;
-          static ZombieCheck zombieCheck;
+          static ZombieCheck zombieCheck{util::typeStr(this)};
           
           zombieCheck();
           return classMonitor;
diff --git a/src/lib/zombie-check.hpp b/src/lib/zombie-check.hpp
index 5c19079a7..b4f005d7e 100644
--- a/src/lib/zombie-check.hpp
+++ b/src/lib/zombie-check.hpp
@@ -30,6 +30,7 @@
  ** we may plant an automatic "zombie detector" to give a clear indication of
  ** such a policy violation (Lumiera forbids to use dependencies from dtors).
  ** 
+ ** @see ZombieCheck_test
  ** @see sync-classlock.hpp
  ** @see depend.hpp
  */
@@ -40,20 +41,38 @@
 
 #include "lib/error.hpp"
 
+#include <cstring>
+#include <string>
+
 
 
 namespace lib {
   namespace error = lumiera::error;
   
+  using std::string;
+  
   
   /**
    * Automatic lifecycle tracker, to produce an alarm when accessing objects after deletion.
+   * @warning ensure the ZombieCheck instance lives in static memory, otherwise it won't work.
    */
   class ZombieCheck
     {
       bool deceased_ = false;
+      char zombieID_[42]{};
       
     public:
+      /**
+       * install a zombie check, tagged with the given id.
+       * When invoked after death, the raised error::Fatal
+       * includes this ID in the diagnostic message.
+       * @remark recommended to use util::typeStr 
+       */
+      ZombieCheck (string id)
+        {
+          std::strncpy(zombieID_, id.c_str(), 41);
+        }
+      
       ZombieCheck() = default;
      ~ZombieCheck()
         {
@@ -69,10 +88,20 @@ namespace lib {
       operator() ()  const
         {
           if (deceased_)
-            throw error::Fatal("Already deceased object called out of order during Application shutdown. "
-                               "Lumiera Policy violated: Dependencies must not be used from destructors."
+            throw error::Fatal(buildDiagnosticMessage()
                               ,error::LUMIERA_ERROR_LIFECYCLE);
         }
+      
+    private:
+      string
+      buildDiagnosticMessage()  const
+        {
+          string msg{"Already deceased object called out of order during Application shutdown. "
+                     "Lumiera Policy violated: Dependencies must not be used from destructors."};
+          if (zombieID_[0])
+            msg += " Offender = "+string{zombieID_};
+          return msg;
+        }
     };
   
   
diff --git a/tests/25fundamental.tests b/tests/25fundamental.tests
index f18b6dff9..f42fe79cb 100644
--- a/tests/25fundamental.tests
+++ b/tests/25fundamental.tests
@@ -257,3 +257,8 @@ return: 0
 END
 
 
+TEST "Zombie tripwire" ZombieCheck_test  <<END
+return: 0
+END
+
+
diff --git a/tests/basics/zombie-check-test.cpp b/tests/basics/zombie-check-test.cpp
new file mode 100644
index 000000000..0fc586d52
--- /dev/null
+++ b/tests/basics/zombie-check-test.cpp
@@ -0,0 +1,88 @@
+/*
+  ZombieCheck(Test)  -  verify a trap for accessing deceased objects
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file zombie-check-test.cpp
+ ** unit test \ref Singleton_test
+ */
+
+
+#include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
+#include "lib/zombie-check.hpp"
+#include "lib/util.hpp"
+
+#include <string>
+
+using util::contains;
+using util::isnil;
+using std::string;
+
+
+namespace lib {
+namespace test{
+  
+  
+  
+  
+  
+  
+  /**********************************************************************//**
+   * @test verify the ability to trap access to deceased objects.
+   * @remark For actual usage, the zombie detector needs to be planted into
+   *         static memory. This test can only verify the trigger mechanics.
+   * @see zombie-check.hpp
+   * @see lib::DependencyFactory::zombieCheck
+   */
+  class ZombieCheck_test : public Test
+    {
+      
+      virtual void
+      run (Arg)
+        {
+          auto zombieID = randStr(50);
+          ZombieCheck trap{zombieID};
+          CHECK (not trap);
+          
+          trap.~ZombieCheck(); // note: unconventional kill
+          CHECK (trap);       //  accessing deceased object...
+          
+          try {             //
+              trap();      //     trigger the tripwire
+            }
+          catch(lumiera::error::Fatal& casuality)
+            {
+              string obituary = casuality.what();
+              CHECK (not isnil (obituary));
+              CHECK (    contains (obituary, zombieID.substr(0,41)));
+              CHECK (not contains (obituary, zombieID));
+            }
+        }
+    };
+  
+  
+  
+  /** Register this test class... */
+  LAUNCHER (ZombieCheck_test, "unit common");
+  
+  
+  
+}} // namespace lib::test
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 9940b6772..b37e342cc 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2944,7 +2944,7 @@
 </node>
 <node COLOR="#338800" CREATED="1538239665856" ID="ID_518505874" MODIFIED="1538263469675" TEXT="EXPAND">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281532767" ID="ID_1335570495" MODIFIED="1538281631433" TEXT="Fehler: mu&#xdf; eigens separate GenNode bauen">
+<node COLOR="#435e98" CREATED="1538281532767" ID="ID_1335570495" MODIFIED="1538365732115" TEXT="Fehler: mu&#xdf; eigens separate GenNode bauen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2959,6 +2959,7 @@
   </body>
 </html>
 </richcontent>
+<icon BUILTIN="button_ok"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281608933" ID="ID_584897977" MODIFIED="1538281622963" TEXT="mu&#xdf; bool parsen...">
@@ -3017,7 +3018,7 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1538317075985" ID="ID_712272839" MODIFIED="1538357310679" TEXT="Problem: lumiera Error-Flag &#xfc;bernimmt nur lokale description">
+<node COLOR="#338800" CREATED="1538317075985" FOLDED="true" ID="ID_712272839" MODIFIED="1538365661558" TEXT="Problem: lumiera Error-Flag &#xfc;bernimmt nur lokale description">
 <linktarget COLOR="#c4588d" DESTINATION="ID_712272839" ENDARROW="Default" ENDINCLINATION="577;63;" ID="Arrow_ID_428347507" SOURCE="ID_313278942" STARTARROW="None" STARTINCLINATION="341;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1538317102405" ID="ID_1770156379" MODIFIED="1538317106320" TEXT="und die ist hier leer"/>
@@ -3055,8 +3056,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538318187819" ID="ID_870746075" MODIFIED="1538318214241" TEXT="Problem: ExecResult nicht ausgewertet">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538318187819" FOLDED="true" ID="ID_870746075" MODIFIED="1538365651376" TEXT="Problem: ExecResult nicht ausgewertet">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538318216016" ID="ID_1444888451" MODIFIED="1538318226226" TEXT="Exception wird nicht ausgeworfen"/>
 <node CREATED="1538318227150" ID="ID_956176289" MODIFIED="1538318230994" TEXT="Loop l&#xe4;uft weiter"/>
 <node CREATED="1538318231726" ID="ID_373021764" MODIFIED="1538318237104" TEXT="aber Error-State ist gesetzt">
@@ -3079,14 +3080,14 @@
 <node CREATED="1538319193716" ID="ID_1785359217" MODIFIED="1538319206846" TEXT="...das erkl&#xe4;rt, warum wir die Ursache nicht sehen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538319456089" ID="ID_342927310" MODIFIED="1538319493900" TEXT="Problem: Handler im ProcDispatcher behandelt nur LumieraException speziell">
-<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538319456089" FOLDED="true" ID="ID_342927310" MODIFIED="1538365654527" TEXT="Problem: Handler im ProcDispatcher behandelt nur LumieraException speziell">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538319495420" ID="ID_39746243" MODIFIED="1538319501623" TEXT="das stellt zwar hier kein Problem dar"/>
 <node CREATED="1538319502331" ID="ID_1092806315" MODIFIED="1538319511413" TEXT="und es ist noch der unspezifische Handler da"/>
 <node CREATED="1538319512146" ID="ID_672632423" MODIFIED="1538319533231" TEXT="aber: problem.what() geht verloren bei std::exception">
 <icon BUILTIN="forward"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538319535006" ID="ID_403817336" MODIFIED="1538319566067" TEXT="Fix: Handler kann genausogut auf std::exception abstellen">
+<node COLOR="#338800" CREATED="1538319535006" ID="ID_403817336" MODIFIED="1538365635663" TEXT="Fix: Handler kann genausogut auf std::exception abstellen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -3098,7 +3099,7 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -3125,7 +3126,7 @@
 <node CREATED="1538281715646" ID="ID_1541383645" MODIFIED="1538281762796" TEXT="emergency shutdown">
 <icon BUILTIN="full-3"/>
 <node CREATED="1538320876787" ID="ID_1528655784" MODIFIED="1538320883630" TEXT="Subsystem-Shutdown">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538320884769" ID="ID_707965628" MODIFIED="1538357472940" TEXT="Problem: re-entrance Bug">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538320884769" FOLDED="true" ID="ID_707965628" MODIFIED="1538365685651" TEXT="Problem: re-entrance Bug">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1538320904127" ID="ID_1958182633" MODIFIED="1538320932319" TEXT="shutdownAll() ruft indirekt/rekursiv sigTerm()">
 <node COLOR="#435e98" CREATED="1538321043388" ID="ID_1860084270" MODIFIED="1538348459443" TEXT="fragt sich, warum">
@@ -3194,7 +3195,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1538322674991" ID="ID_371763142" MODIFIED="1538359354152" TEXT="Problem: triggerShutdown nicht wasserdicht">
+<node CREATED="1538322674991" FOLDED="true" ID="ID_371763142" MODIFIED="1538365689019" TEXT="Problem: triggerShutdown nicht wasserdicht">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1538322708227" ID="ID_1994833744" MODIFIED="1538322772297" TEXT="kann sterben">
 <icon BUILTIN="messagebox_warning"/>
@@ -3264,11 +3265,89 @@
 </html>
 </richcontent>
 <icon BUILTIN="full-5"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281782245" ID="ID_888818129" MODIFIED="1538281805087" TEXT="welcher...?">
+<node COLOR="#435e98" CREATED="1538281782245" ID="ID_888818129" MODIFIED="1538365399555" TEXT="welcher...">
 <icon BUILTIN="help"/>
 <node CREATED="1538326229581" ID="ID_687910017" MODIFIED="1538326243254" TEXT="mit dem Debugger nicht zu fassen...."/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538326244075" ID="ID_362650638" MODIFIED="1538326258434" TEXT="Aufgabe: Zobmie-ID statisch speichern">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538326244075" ID="ID_362650638" MODIFIED="1538365389966" TEXT="Aufgabe: Zobmie-ID statisch speichern">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538365422252" ID="ID_1782663880" MODIFIED="1538365532058" TEXT="Offender = ClassLock&lt;gui::interact::LocationQuery&gt;">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      0000001180: INFO: subsystem-runner.hpp:208: worker_3: sigTerm: Subsystem 'Lumiera GTK GUI' terminated.
+    </p>
+    <p>
+      0000001181: NOTICE: appstate.cpp:170: thread_1: maybeWait: Shutting down Lumiera...
+    </p>
+    <p>
+      0000001182: ALERT: appstate.cpp:174: thread_1: maybeWait: Triggering emergency exit...
+    </p>
+    <p>
+      0000001243: WARNING: interfaceregistry.c:199: thread_1: lumiera_interfaceregistry_bulkremove_interfaces: ENTRY NOT FOUND in interfaceregistry at clean-up of interface lumieraorg_Gui, instance lumieraorg_GuiStarterPlugin
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:9719): Gtk-CRITICAL **: gtk_widget_is_drawable: assertion 'GTK_IS_WIDGET (widget)' failed
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:9719): Pango-CRITICAL **: pango_layout_get_cursor_pos: assertion 'index &gt;= 0 &amp;&amp; index &lt;= layout-&gt;length' failed
+    </p>
+    <p>
+      0000001293: ERR: error-exception.cpp:185: worker_3: lumiera_unexpectedException: ### Lumiera halted due to an unexpected Error ###
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      ### Lumiera halted due to an unexpected Error ###
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      +++ Caught Exception LUMIERA_ERROR_LIFECYCLE:Lifecycle assumptions violated
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      0000001298: ERR: error-exception.cpp:196: worker_3: lumiera_unexpectedException: +++ caught error::LumieraError&lt;error::LUMIERA_ERROR_FATAL, error::LumieraError&lt;error::LUMIERA_ERROR_LOGIC, Error&gt; &gt;
+    </p>
+    <p>
+      0000001298! ERR: error-exception.cpp:196: worker_3: lumiera_unexpectedException: +++ messg: Sorry, Lumiera encountered an internal error.
+    </p>
+    <p>
+      0000001298! ERR: error-exception.cpp:196: worker_3: lumiera_unexpectedException: +++ descr: LUMIERA_ERROR_LIFECYCLE:Lifecycle assumptions violated (Already deceased object called out of order during Application shutdown. Lumiera Policy violated: Dependencies must not be used from destructors. Offender = ClassLock&lt;gui::interact::LocationQuery, s).
+    </p>
+    <p>
+      0000001299: ERR: error-exception.cpp:212: worker_3: lumiera_unexpectedException: last registered error was....
+    </p>
+    <p>
+      0000001299! ERR: error-exception.cpp:212: worker_3: lumiera_unexpectedException: LUMIERA_ERROR_LIFECYCLE:Lifecycle assumptions violated
+    </p>
+    <p>
+      Abgebrochen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+<node CREATED="1538365543884" ID="ID_534885692" MODIFIED="1538365573259" TEXT="man beachte auch die zwei GTK-Assertions nach dem GUI-Shutdown">
+<icon BUILTIN="forward"/>
+</node>
+<node CREATED="1538365584159" ID="ID_998255150" MODIFIED="1538365599464" TEXT="wieso l&#xe4;uft da noch GUI-code??"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281788117" ID="ID_1747014683" MODIFIED="1538281816152" TEXT="wie konnte das passieren....">

From 7655960b23a9a83887db6669cc4b8d7d6a5ed62c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 2 Oct 2018 02:45:01 +0200
Subject: [PATCH 123/178] Fix Zombie invocation in GUI shutdown (closes #1178)

== possible Scenario ==
 1. Gui: sigTerm invoked
 2. last Subsystem -> cleans all remaining Subsy entries
 3. main-Thread wakens
 4. leaves main() und undloads the GUI plug-in
 5. which destroys the `DependencyFactory<LocationQuery>` placed in static memory
 6. the Gui-Thread returns from sigTerm()  and invokes `~UiManager()`
 7. which indirectly deregisters through `InteractionDirector` the `LocationQuery` Service
 8. `DependInject::Service::shutdown()` grabs the Lock ==> **BOOM**

== Solution ==
Ensure all dtors of the UI backbone are invoked ''prior'' to calling sigTerm()
---
 src/gui/gtk-lumiera.cpp                |  17 ++-
 src/gui/interact/ui-coord-resolver.hpp |   2 +-
 wiki/thinkPad.ichthyo.mm               | 186 ++++++++++++++++++++++++-
 3 files changed, 196 insertions(+), 9 deletions(-)

diff --git a/src/gui/gtk-lumiera.cpp b/src/gui/gtk-lumiera.cpp
index 674ef7f27..887824d89 100644
--- a/src/gui/gtk-lumiera.cpp
+++ b/src/gui/gtk-lumiera.cpp
@@ -99,8 +99,8 @@ namespace gui {
           { }
         
         
-        void
-        run (Subsys::SigTerm reportOnTermination)
+        string
+        run()
           {
             string errorMsgBuff;
             try
@@ -122,18 +122,21 @@ namespace gui {
             if (lumiera_error_peek())
               errorMsgBuff = string{lumiera_error()};
             
-            reportOnTermination(&errorMsgBuff);        // inform main thread that the GUI has been shut down. 
+            return errorMsgBuff;
           }
       };
     
     
     void
-    runGUI (Subsys::SigTerm& reportOnTermination)
+    runGUI (Subsys::SigTerm reportOnTermination)
     {
-      GtkLumiera{}.run (reportOnTermination);
-    }
+      string shutdownLog = GtkLumiera{}.run();
+      
+       // inform main thread that the GUI has been shut down...
+      reportOnTermination (&shutdownLog);
+    }//(End) GUI-Thread.
     
-  } // (End) impl details
+  }//(End) impl details
   
   
   
diff --git a/src/gui/interact/ui-coord-resolver.hpp b/src/gui/interact/ui-coord-resolver.hpp
index 36686f954..27635c58f 100644
--- a/src/gui/interact/ui-coord-resolver.hpp
+++ b/src/gui/interact/ui-coord-resolver.hpp
@@ -53,7 +53,7 @@
  ** followed by traversal of the coordinate spec and matching against a navigation path within the actual UI window
  ** configuration. This process might involve interpretation of some meta-symbols and interpolation of wildcards.
  ** 
- ** As indicated above, the coordinate resolver internally relies on a [context query interface](\ref LocationQuery),
+ ** As indicated above, the coordinate resolver internally relies on a [context query interface](\ref gui::interact::LocationQuery),
  ** to find out about existing windows, panels, views and tabs and to navigate the real UI structure. The actual
  ** implementation of this context query interface is backed by the \ref Navigator component exposed through the
  ** \ref InteractionDirector.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index b37e342cc..7be1572e7 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -3348,11 +3348,195 @@
 <icon BUILTIN="forward"/>
 </node>
 <node CREATED="1538365584159" ID="ID_998255150" MODIFIED="1538365599464" TEXT="wieso l&#xe4;uft da noch GUI-code??"/>
+<node CREATED="1538437336885" ID="ID_1889101831" MODIFIED="1538437644906" TEXT="Beobachtung: worker_3 == GUI-Thread gewesen">
+<arrowlink COLOR="#d21052" DESTINATION="ID_1886197899" ENDARROW="Default" ENDINCLINATION="38;-127;" ID="Arrow_ID_274941451" STARTARROW="None" STARTINCLINATION="-156;4;"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281788117" ID="ID_1747014683" MODIFIED="1538281816152" TEXT="wie konnte das passieren....">
+</node>
+<node COLOR="#435e98" CREATED="1538281788117" ID="ID_1747014683" MODIFIED="1538440313206" TEXT="wie konnte das passieren....">
 <icon BUILTIN="help"/>
 <icon BUILTIN="yes"/>
+<node CREATED="1538436917958" ID="ID_1974415924" MODIFIED="1538436933975" TEXT="sehr wahrscheinlich ein lib::Depend&lt;LocationQuery&gt;"/>
+<node CREATED="1538436940187" ID="ID_691937310" MODIFIED="1538436948429" TEXT="in Frage kommen....">
+<node CREATED="1538436955585" ID="ID_508170245" MODIFIED="1538436971250" TEXT="ViewLocator::locResolver_"/>
+<node CREATED="1538437006170" ID="ID_282885180" MODIFIED="1538437018876" TEXT="UILocationSolver::getLocationQuery"/>
+<node CREATED="1538437047572" ID="ID_230833452" MODIFIED="1538437051271" TEXT="LocationQuery::service">
+<node CREATED="1538437082776" ID="ID_184252441" MODIFIED="1538437093282" TEXT="lebt in ui-coord-resolver.cpp"/>
+</node>
+<node CREATED="1538437140312" ID="ID_1998433336" MODIFIED="1538437150122" TEXT="InteractionDirector::navigator_">
+<node CREATED="1538437158909" ID="ID_1706438738" MODIFIED="1538437159929" TEXT="= lib::DependInject&lt;LocationQuery&gt;::ServiceInstance&lt;Navigator&gt;"/>
+</node>
+</node>
+<node CREATED="1538437605225" ID="ID_1886197899" MODIFIED="1538440323658" TEXT="Verdacht: dtor-Race">
+<arrowlink COLOR="#e24165" DESTINATION="ID_1236741743" ENDARROW="Default" ENDINCLINATION="-145;6;" ID="Arrow_ID_1521104972" STARTARROW="None" STARTINCLINATION="-19;77;"/>
+<linktarget COLOR="#d21052" DESTINATION="ID_1886197899" ENDARROW="Default" ENDINCLINATION="38;-127;" ID="Arrow_ID_274941451" SOURCE="ID_1889101831" STARTARROW="None" STARTINCLINATION="-156;4;"/>
+<icon BUILTIN="idea"/>
+<node CREATED="1538437664345" ID="ID_1713946380" MODIFIED="1538437671196" TEXT="Szenario">
+<node CREATED="1538437672401" ID="ID_1788050505" MODIFIED="1538437844014" TEXT="Gui: sigTerm aufgerufen">
+<icon BUILTIN="full-1"/>
+</node>
+<node CREATED="1538437682015" ID="ID_1413705214" MODIFIED="1538437846332" TEXT="letztes Subsys -&gt; r&#xe4;umt alle Subsysteme weg">
+<icon BUILTIN="full-2"/>
+</node>
+<node CREATED="1538437706876" ID="ID_1187411887" MODIFIED="1538437848750" TEXT="main-Thread wacht auf">
+<icon BUILTIN="full-3"/>
+</node>
+<node CREATED="1538437715874" ID="ID_691753107" MODIFIED="1538437851846" TEXT="verl&#xe4;&#xdf;t main() und entl&#xe4;d das Plug-In">
+<icon BUILTIN="full-4"/>
+</node>
+<node CREATED="1538437741751" ID="ID_510852039" MODIFIED="1538437854073" TEXT="das zerst&#xf6;rt die statische Factory">
+<icon BUILTIN="full-5"/>
+</node>
+<node CREATED="1538437749950" ID="ID_1236741743" MODIFIED="1538440181061" TEXT="Gui-Thread kehr aus sigTerm zur&#xfc;ck und ruft ~UiManager()">
+<linktarget COLOR="#e24165" DESTINATION="ID_1236741743" ENDARROW="Default" ENDINCLINATION="-145;6;" ID="Arrow_ID_1521104972" SOURCE="ID_1886197899" STARTARROW="None" STARTINCLINATION="-19;77;"/>
+<icon BUILTIN="full-6"/>
+</node>
+<node CREATED="1538437785489" ID="ID_1853884803" MODIFIED="1538437858984" TEXT="indirekt deregistriert InteractionDirector den Service">
+<icon BUILTIN="full-7"/>
+</node>
+<node CREATED="1538437812598" ID="ID_407685604" MODIFIED="1538437861596" TEXT="DependInject::Service::shutdown() greift sich das Lock">
+<icon BUILTIN="full-8"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538437831603" ID="ID_822519118" MODIFIED="1538437839823" TEXT="BOOM">
+<icon BUILTIN="clanbomber"/>
+</node>
+</node>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1538440214523" HGAP="1" ID="ID_390044012" MODIFIED="1538440299089" TEXT="Umbau daraufhin" VSHIFT="21">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538440224730" ID="ID_973914173" MODIFIED="1538440241131" TEXT="sigTerm-Aufruf aus der run()-Methode herausziehen"/>
+<node CREATED="1538440242999" ID="ID_815144668" MODIFIED="1538440276578">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ..damit ~GtkLumiera() garantiert <i>vorher</i>&#160;aufgerufen wird
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1538440332187" HGAP="-48" ID="ID_393079011" MODIFIED="1538440345038" TEXT="Treffer, versenkt" VSHIFT="27">
+<node COLOR="#435e98" CREATED="1538440346730" ID="ID_1456330609" MODIFIED="1538440482615" TEXT="Fehler ist verschwunden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      0000001028: INFO: proc-dispatcher.cpp:301: worker_2: processCommands: +++ dispatch Command(&quot;test_meta_markAction&quot;) {exec}
+    </p>
+    <p>
+      0000001029: INFO: proc-dispatcher.cpp:306: worker_2: processCommands: +++ --------&gt;&gt;&gt; bang!
+    </p>
+    <p>
+      0000001031: WARNING: handling-pattern.cpp:90: worker_2: invoke: Invocation of Command(&quot;test_meta_markAction&quot;) {exec} failed: bad lexical cast: source type value could not be interpreted as target
+    </p>
+    <p>
+      0000001052: INFO: proc-dispatcher.cpp:159: worker_2: ~DispatcherLoop: Proc-Dispatcher stopped.
+    </p>
+    <p>
+      0000001053: INFO: subsystem-runner.hpp:208: worker_2: sigTerm: Subsystem 'Session' terminated.
+    </p>
+    <p>
+      0000001054: WARNING: subsystem-runner.hpp:209: worker_2: sigTerm: Irregular shutdown caused by: LUMIERA_ERROR_LOGIC:internal logic broken (Command execution failed: LUMIERA_ERROR_EXTERNAL:failure in external service -- caused by: bad lexical cast: source type value could not be interpreted as target).
+    </p>
+    <p>
+      0000001090: TODO: output-director.cpp:136: worker_4: bringDown: actually bring down the output generation
+    </p>
+    <p>
+      0000001091: INFO: subsystem-runner.hpp:208: worker_2: sigTerm: Subsystem 'Dummy-Player' terminated.
+    </p>
+    <p>
+      0000001092: NOTICE: notification-service.cpp:158: worker_2: triggerGuiShutdown: @GUI: shutdown triggered with explanation 'Application shutdown'....
+    </p>
+    <p>
+      0000001111: NOTICE: notification-service.cpp:158: worker_2: triggerGuiShutdown: @GUI: shutdown triggered with explanation 'Application shutdown'....
+    </p>
+    <p>
+      0000001119: INFO: subsystem-runner.hpp:208: worker_4: sigTerm: Subsystem 'PlayOut' terminated.
+    </p>
+    <p>
+      0000001120: NOTICE: notification-service.cpp:158: worker_4: triggerGuiShutdown: @GUI: shutdown triggered with explanation 'Application shutdown'....
+    </p>
+    <p>
+      0000001128: INFO: display-service.hpp:147: worker_3: ~DisplayService: Display service dying...
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Gtk-CRITICAL **: gtk_widget_is_drawable: assertion 'GTK_IS_WIDGET (widget)' failed
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Pango-CRITICAL **: pango_layout_get_cursor_pos: assertion 'index &gt;= 0 &amp;&amp; index &lt;= layout-&gt;length' failed
+    </p>
+    <p>
+      0000001160: INFO: workspace-window.cpp:53: worker_3: ~WorkspaceWindow: Closing workspace window...
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Gdl-CRITICAL **: gdl_dock_master_get_controller: assertion 'master != NULL' failed
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Gdl-CRITICAL **: gdl_dock_master_get_controller: assertion 'master != NULL' failed
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Gdl-CRITICAL **: gdl_dock_master_get_controller: assertion 'master != NULL' failed
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      (lumiera:12160): Gdl-CRITICAL **: gdl_dock_master_get_controller: assertion 'master != NULL' failed
+    </p>
+    <p>
+      0000001167: INFO: subsystem-runner.hpp:208: worker_3: sigTerm: Subsystem 'Lumiera GTK GUI' terminated.
+    </p>
+    <p>
+      0000001175: NOTICE: appstate.cpp:170: thread_1: maybeWait: Shutting down Lumiera...
+    </p>
+    <p>
+      0000001176: ALERT: appstate.cpp:174: thread_1: maybeWait: Triggering emergency exit...
+    </p>
+    <p>
+      0000001237: WARNING: interfaceregistry.c:199: thread_1: lumiera_interfaceregistry_bulkremove_interfaces: ENTRY NOT FOUND in interfaceregistry at clean-up of interface lumieraorg_Gui, instance lumieraorg_GuiStarterPlugin
+    </p>
+    <p>
+      (hiv)~/devel/lumi-$
+    </p>
+    <p>
+      (hiv)~/devel/lumi-$
+    </p>
+    <p>
+      (hiv)~/devel/lumi-$ echo $?
+    </p>
+    <p>
+      2
+    </p>
+    <p>
+      (hiv)~/devel/lumi-$
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="info"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From c6b8811af03e744d5b28e63b9e78be65cfc053b1 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 3 Oct 2018 04:43:16 +0200
Subject: [PATCH 124/178] Library: utility to interpret a text as bool value
 (yes/no)

...also fixes the problem with the "expand" mark in DemoGuiRoundtrip
---
 src/lib/util.cpp                              |  43 ++++++-
 src/lib/util.hpp                              |  21 +++-
 src/proc/cmd/meta-cmd.cpp                     |   6 +-
 tests/15library.tests                         |  41 ++++---
 tests/library/util-parse-bool-test.cpp        | 106 ++++++++++++++++++
 ...cpp => util-sanitised-identifier-test.cpp} |  10 +-
 wiki/thinkPad.ichthyo.mm                      |  19 +++-
 7 files changed, 208 insertions(+), 38 deletions(-)
 create mode 100644 tests/library/util-parse-bool-test.cpp
 rename tests/library/{sanitised-identifier-test.cpp => util-sanitised-identifier-test.cpp} (85%)

diff --git a/src/lib/util.cpp b/src/lib/util.cpp
index 7ab8dfe67..93920c1a1 100644
--- a/src/lib/util.cpp
+++ b/src/lib/util.cpp
@@ -29,7 +29,9 @@
  */
 
 
+#include "error.hpp"
 #include "lib/util.hpp"
+#include "lib/format-string.hpp"
 
 #include <boost/algorithm/string.hpp>
 #include <functional>
@@ -40,12 +42,18 @@ using boost::algorithm::is_any_of;
 using boost::algorithm::is_alnum;
 using boost::algorithm::is_space;
 
+#include <regex>
+
+using std::regex;
+using std::regex_match;
+
+using std::function;
+using util::_Fmt;
 
 namespace util {
 
-  using std::function;
   
-  typedef function<bool(string::value_type)> ChPredicate;
+  using ChPredicate = function<bool(string::value_type)>;
   ChPredicate operator! (ChPredicate p) { return not bind(p,_1); }
 
   // character classes used for sanitising a string
@@ -63,12 +71,12 @@ namespace util {
     while ( i != e )
       {
         while ( i != e && !isValid (*i) )   ++i;
-        while ( i != e && isValid  (*i) )   *(j++) = *(i++); 
-        if    ( i != e && isPunct  (*i) ) 
+        while ( i != e && isValid  (*i) )   *(j++) = *(i++);
+        if    ( i != e && isPunct  (*i) )
           {
             *j++ = '_';
             do  ++i;
-            while ( i != e && isPunct (*i));  
+            while ( i != e && isPunct (*i));
           }
       }
     res.erase(j,res.end());
@@ -79,7 +87,7 @@ namespace util {
   /**
    * @remarks this function just forwards to boost::algorithm::trim_copy.
    *          Use this call when boost header inclusion is an issue, otherwise
-   *          a direct invocation is likely to perform better, due to inlining.  
+   *          a direct invocation is likely to perform better, due to inlining.
    */
   string
   trim (string const& org)
@@ -87,6 +95,29 @@ namespace util {
     return boost::algorithm::trim_copy (org);
   }
   
+  
+  
+  
+  namespace {
+    regex trueTokens{ "\\s*(true|True|TRUE|yes|Yes|YES|1|\\+)\\s*",  regex::ECMAScript | regex::optimize};
+    regex falseTokens{"\\s*(false|False|FALSE|no|No|NO|0|\\-)\\s*",  regex::ECMAScript | regex::optimize};
+  }
+  
+  bool
+  boolVal (string const& textForm)
+  {
+    if (regex_match (textForm, trueTokens))  return true;
+    if (regex_match (textForm, falseTokens)) return false;
+    throw lumiera::error::Invalid(_Fmt{"String '%s' can not be interpreted as bool value"} % textForm);
+  }
+  
+  
+  bool
+  isYes (string const& textForm) noexcept
+  {
+    return regex_match (textForm, trueTokens);
+  }
+  
 
   
 } // namespace util
diff --git a/src/lib/util.hpp b/src/lib/util.hpp
index 4d35ff019..8e15d0872 100644
--- a/src/lib/util.hpp
+++ b/src/lib/util.hpp
@@ -359,8 +359,8 @@ namespace util {
    "mixed    Ω   garbage"             --> 'mixed_garbage'
    "Bääääh!!"                         --> 'Bh'
 \endverbatim
-   * @see sanitised-identifier-test.cpp
-   * @see lib::meta::sanitisedSymbol()
+   * @see \ref UtilSanitizedIdentifier_test
+   * @see \ref lib::meta::sanitisedSymbol()
    */
   string sanitise (string const& org);
   
@@ -371,6 +371,23 @@ namespace util {
   string trim (string const& org);
   
   
+  /** interpret text representation of a boolean value.
+   * @remarks this function detects the relevant token rather strict....
+   * - yields `true` for the tokens "true", "True", "TRUE", "yes", "Yes", "YES", "1", "+"
+   * - yields `false` for the tokens "false", "False", "FALSE", "no", "No, "NO", "0", "-"
+   * - leading and trailing whitespace is ignored
+   * @throws lumiera::error::Invalid for any other text content
+   */
+  bool boolVal(string const&);
+  
+  
+  /** check the given text if it can be interpreted as affirmative answer (bool `true`).
+   * @remarks this function just fishes for the known `true` tokens and interprets
+   *  all other content as `false`, including empty strings. Never throws.
+   */
+  bool isYes(string const&) noexcept;
+  
+  
   
   
   /** convenience shortcut: conversion to c-String via string.
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 25754046f..69f78dc93 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -44,8 +44,8 @@
 #include "lib/idi/entry-id.hpp"
 #include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
 //#include "lib/symbol.hpp"
+#include "lib/util.hpp"
 
-#include <boost/lexical_cast.hpp>
 #include <string>
 
 using lib::hash::LuidH;
@@ -58,8 +58,8 @@ using gui::GuiNotification;
 using lib::diff::GenNode;
 //using util::cStr;
 using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
+using util::isYes;
 using std::string;
-using boost::lexical_cast;
 
 
 namespace proc {
@@ -214,7 +214,7 @@ COMMAND_DEFINITION (test_meta_markAction)
                       {
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
                         GuiNotification::facade().mark (errorLogID
-                                                       ,actionID=="expand"? GenNode{actionID, lexical_cast<bool> (message)}  ///////////FIXME : lexical_cast is not suitable. We need a generic bool parse function!
+                                                       ,actionID=="expand"? GenNode{actionID, isYes(message)}
                                                                           : GenNode{actionID, message});
                       })
        .captureUndo ([](string actionID, string message) -> string
diff --git a/tests/15library.tests b/tests/15library.tests
index 3aa51767f..a9779dc4c 100644
--- a/tests/15library.tests
+++ b/tests/15library.tests
@@ -493,22 +493,6 @@ return: 0
 END
 
 
-TEST "create sanitised identifiers" SanitizedIdentifier_test <<END
-out-lit: 'Word' --> 'Word'
-out-lit: 'a Sentence' --> 'a_Sentence'
-out-lit: 'trailing Withespace
-out-lit:        	' --> 'trailing_Withespace'
-out-lit: 'with    a  	 lot
-out-lit:   of Whitespace' --> 'with_a_lot_of_Whitespace'
-out-lit: 'with"much (punctuation)[]!' --> 'withmuch_(punctuation)'
-out-lit: '§&Ω%€  leading garbage' --> 'leading_garbage'
-out-lit: 'mixed    Ω   garbage' --> 'mixed_garbage'
-out-lit: 'Bääääh!!' --> 'Bh'
-out-lit: '§&Ω%€' --> ''
-return: 0
-END
-
-
 TEST "ScopedHolder_test" ScopedHolder_test <<END
 out: checking ScopedHolder<Dummy>...
 out: checking ScopedPtrHolder<Dummy>...
@@ -588,6 +572,11 @@ return: 0
 END
 
 
+TEST "ownership of malloced data" UniqueMallocOwner_test <<END
+return: 0
+END
+
+
 TEST "integer rounding utility" UtilFloordiv_test <<END
 return: 0
 END
@@ -702,12 +691,28 @@ return: 0
 END
 
 
-TEST "ownership of malloced data" UniqueMallocOwner_test <<END
+TEST "collection utils" UtilCollection_test <<END
 return: 0
 END
 
 
-TEST "collection utils" UtilCollection_test <<END
+TEST "util: parse text to bool" UtilParseBool_test <<END
+return: 0
+END
+
+
+TEST "util: sanitised identifier" UtilSanitizedIdentifier_test <<END
+out-lit: 'Word' --> 'Word'
+out-lit: 'a Sentence' --> 'a_Sentence'
+out-lit: 'trailing Withespace
+out-lit:            ' --> 'trailing_Withespace'
+out-lit: 'with    a      lot
+out-lit:   of Whitespace' --> 'with_a_lot_of_Whitespace'
+out-lit: 'with"much (punctuation)[]!' --> 'withmuch_(punctuation)'
+out-lit: '§&Ω%€  leading garbage' --> 'leading_garbage'
+out-lit: 'mixed    Ω   garbage' --> 'mixed_garbage'
+out-lit: 'Bääääh!!' --> 'Bh'
+out-lit: '§&Ω%€' --> ''
 return: 0
 END
 
diff --git a/tests/library/util-parse-bool-test.cpp b/tests/library/util-parse-bool-test.cpp
new file mode 100644
index 000000000..10a7d4db6
--- /dev/null
+++ b/tests/library/util-parse-bool-test.cpp
@@ -0,0 +1,106 @@
+/*
+  UtilParseBool(Test)  -  derive bool value from text form
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file util-parse-bool-test.cpp
+ ** unit test \ref UtilParseBool_test
+ */
+
+
+#include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
+#include "lib/util.hpp"
+
+#include <string>
+
+
+using lumiera::error::LUMIERA_ERROR_INVALID;
+
+
+namespace util {
+namespace test {
+  
+  
+  class UtilParseBool_test : public Test
+    {
+      virtual void
+      run (Arg)
+        {
+          CHECK (boolVal ("true"));
+          CHECK (boolVal ("True"));
+          CHECK (boolVal ("TRUE"));
+          CHECK (boolVal ("yes"));
+          CHECK (boolVal ("Yes"));
+          CHECK (boolVal ("YES"));
+          CHECK (boolVal ("1"));
+          CHECK (boolVal ("+"));
+          
+          CHECK (not boolVal ("false"));
+          CHECK (not boolVal ("False"));
+          CHECK (not boolVal ("FALSE"));
+          CHECK (not boolVal ("no"));
+          CHECK (not boolVal ("No"));
+          CHECK (not boolVal ("NO"));
+          CHECK (not boolVal ("0"));
+          CHECK (not boolVal ("-"));
+          
+          CHECK (boolVal ("yes "));
+          CHECK (boolVal (" Yes"));
+          CHECK (boolVal (" +  "));
+          CHECK (not boolVal (" \n0 "));
+          
+          VERIFY_ERROR (INVALID, boolVal("")         );
+          VERIFY_ERROR (INVALID, boolVal(" ")        );
+          VERIFY_ERROR (INVALID, boolVal("yEs")      );
+          VERIFY_ERROR (INVALID, boolVal("tRuE")     );
+          VERIFY_ERROR (INVALID, boolVal("falsehood"));
+          VERIFY_ERROR (INVALID, boolVal("11")       );
+          VERIFY_ERROR (INVALID, boolVal("+1")       );
+          VERIFY_ERROR (INVALID, boolVal("↯")        );
+          
+          
+          CHECK (isYes ("true"));
+          CHECK (isYes ("True"));
+          CHECK (isYes ("TRUE"));
+          CHECK (isYes ("yes"));
+          CHECK (isYes ("Yes"));
+          CHECK (isYes ("1"));
+          CHECK (isYes ("+"));
+          
+          CHECK (isYes (" True   "));
+          CHECK (isYes (" \n\n 1 \t "));
+
+          CHECK (not isYes (" True and False"));
+          CHECK (not isYes ("tRuE"));
+          CHECK (not isYes ("+2"));
+          CHECK (not isYes ("no"));
+          CHECK (not isYes ("1010"));
+          CHECK (not isYes ("↯"));
+          CHECK (not isYes (" "));
+          CHECK (not isYes (""));
+        }
+    };
+  
+  LAUNCHER (UtilParseBool_test, "unit common");
+  
+  
+}} // namespace util::test
+
diff --git a/tests/library/sanitised-identifier-test.cpp b/tests/library/util-sanitised-identifier-test.cpp
similarity index 85%
rename from tests/library/sanitised-identifier-test.cpp
rename to tests/library/util-sanitised-identifier-test.cpp
index 7d7ce6d18..cdfd9f05b 100644
--- a/tests/library/sanitised-identifier-test.cpp
+++ b/tests/library/util-sanitised-identifier-test.cpp
@@ -1,5 +1,5 @@
 /*
-  SanitizedIdentifier(Test)  -  remove non-standard-chars and punctuation
+  UtilSanitizedIdentifier(Test)  -  remove non-standard-chars and punctuation
 
   Copyright (C)         Lumiera.org
     2008,               Hermann Vosseler <Ichthyostega@web.de>
@@ -20,8 +20,8 @@
 
 * *****************************************************/
 
-/** @file sanitised-identifier-test.cpp
- ** unit test \ref SanitizedIdentifier_test
+/** @file util-sanitised-identifier-test.cpp
+ ** unit test \ref UtilSanitizedIdentifier_test
  */
 
 
@@ -38,7 +38,7 @@ namespace util {
 namespace test {
   
   
-  class SanitizedIdentifier_test : public Test
+  class UtilSanitizedIdentifier_test : public Test
     {
       virtual void run (Arg)
         {
@@ -60,7 +60,7 @@ namespace test {
       }
     };
   
-  LAUNCHER (SanitizedIdentifier_test, "unit common");
+  LAUNCHER (UtilSanitizedIdentifier_test, "unit common");
   
   
 }} // namespace util::test
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7be1572e7..4f616e56b 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2962,8 +2962,8 @@
 <icon BUILTIN="button_ok"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538281608933" ID="ID_584897977" MODIFIED="1538281622963" TEXT="mu&#xdf; bool parsen...">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538281608933" ID="ID_584897977" MODIFIED="1538533889689" TEXT="mu&#xdf; bool parsen...">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538281635897" ID="ID_562945035" MODIFIED="1538281651821" TEXT="lexical_cast geht nicht">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -2978,7 +2978,7 @@
 </richcontent>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1538281655774" ID="ID_1847834965" MODIFIED="1538281662977" TEXT="kann nur 1 und 0"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281664349" ID="ID_1454517361" MODIFIED="1538281687765" TEXT="interessanter Folgefehler">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281664349" FOLDED="true" ID="ID_1454517361" MODIFIED="1538441787807" TEXT="interessanter Folgefehler">
 <icon BUILTIN="broken-line"/>
 <node CREATED="1538281691097" ID="ID_1911272932" MODIFIED="1538281757024" TEXT="exception killt ProcDispatcher (das ist OK)">
 <icon BUILTIN="full-1"/>
@@ -3419,7 +3419,9 @@
 </richcontent>
 </node>
 </node>
-<node CREATED="1538440332187" HGAP="-48" ID="ID_393079011" MODIFIED="1538440345038" TEXT="Treffer, versenkt" VSHIFT="27">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538440332187" HGAP="-48" ID="ID_393079011" MODIFIED="1538440532784" TEXT="Treffer, versenkt" VSHIFT="27">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
 <node COLOR="#435e98" CREATED="1538440346730" ID="ID_1456330609" MODIFIED="1538440482615" TEXT="Fehler ist verschwunden">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -3536,12 +3538,21 @@
 </richcontent>
 <icon BUILTIN="info"/>
 </node>
+<node COLOR="#338800" CREATED="1538440505597" ID="ID_1015433202" MODIFIED="1538440524651" TEXT="#1178 Zombie race in GUI Subsystem shutdown">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
 </node>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1538441813086" ID="ID_431066008" MODIFIED="1538533883011" TEXT="neue Hilfsfunktion in util.hpp">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538533891029" ID="ID_1886289594" MODIFIED="1538533896858" TEXT="Test hierf&#xfc;r">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1537835859576" ID="ID_968868056" MODIFIED="1538263469675" TEXT="CLEAR_ERR">
 <icon BUILTIN="button_ok"/>

From 4635d18265763e572883688b7ad92f509d5c2cb2 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 3 Oct 2018 17:50:20 +0200
Subject: [PATCH 125/178] NotificationDisplay: draft function to retain only
 the errors

discard all other info log messages and retain only the entries marked as error.
This is also a proof-of-concept regarding position bookmarks and markup.

Implemented by populating a new buffer and swapping it into place.
---
 src/gui/widget/error-log-display.hpp |  59 +++++++++---
 wiki/thinkPad.ichthyo.mm             | 129 +++++++++++++++------------
 2 files changed, 123 insertions(+), 65 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 19d2064f4..a818056e2 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -67,6 +67,7 @@
 //#include "lib/util.hpp"
 
 //#include <memory>
+#include <utility>
 #include <vector>
 
 
@@ -76,7 +77,9 @@ namespace widget {
   
   using util::_Fmt;
   using lib::Literal;
+  using std::make_pair;
   using std::vector;
+  using std::move;
   
   namespace {
     
@@ -107,17 +110,25 @@ namespace widget {
   
   
   /**
-   * @todo WIP-WIP as of 9/2017
-   *       Just a text display box with scrollbars.
-   *       Need to add formatting etc.
+   * Widget to display log and error messages.
+   * Based on a multiline text display box with scrollbars.
+   * Warning and error messages are highlighted by special formatting.
+   * And [error entries are treated specially](\ref addError()), insofar
+   * they are tracked by an index, allowing to build additional convenience
+   * features later on...
+   * @remarks this is _just a widget_ intended for direct use. By default,
+   *   it is managed by the \ref NotificationHub, which is a controller,
+   *   attached to the UI-Bus and responding to the [UI-Element protocol]
+   *   (\ref tangible.hpp).
    */
   class ErrorLogDisplay
     : public Gtk::ScrolledWindow
     {
       
       using Mark = Glib::RefPtr<Gtk::TextBuffer::Mark>;
+      using Entry = std::pair<Mark,Mark>;
       
-      vector<Mark> errorMarks_;
+      vector<Entry> errorMarks_;
       Gtk::TextView textLog_;
 
     public:
@@ -188,10 +199,38 @@ namespace widget {
             expand (true);
         }
       
+      /**
+       * clear all mere information messages;
+       * retain just the errors with tags
+       * @remark in fact populates a new buffer
+       */
       void
       clearInfoMsg()
         {
-          UNIMPLEMENTED ("clear all mere information messages; then re-insert the errors with tags");
+          auto newBuff = Gtk::TextBuffer::create (textLog_.get_buffer()->get_tag_table());
+          vector<Entry> newMarks;
+          for (Entry& entry : errorMarks_)
+            {
+              newMarks.emplace_back(
+                make_pair (
+                    newBuff->create_mark (newBuff->end(), true),     // "left gravity": stays to the left of inserted text
+                    newBuff->create_mark (newBuff->end(), false))); //  "right gravity": sticks right behind the inserted text))
+              
+              newBuff->insert (newBuff->end()
+                              ,entry.first->get_iter()
+                              ,entry.second->get_iter()
+                              );
+            }
+           // install the reduced new buffer
+          auto oldBuff = textLog_.get_buffer();
+          textLog_.set_buffer(newBuff);
+          swap (errorMarks_, newMarks);
+          
+          // add a marker line to indicate the removed old log contents
+          int oldLines = oldBuff->get_line_count();
+          int newLines = newBuff->get_line_count();
+          ASSERT (oldLines >= newLines);
+          addInfo (_Fmt{_("───════ %d old log lines removed ════───\n")} % (oldLines-newLines));
         }
       
       void
@@ -220,19 +259,19 @@ namespace widget {
        * [GTKmm tutorial]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
        * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
        */
-      Mark
+      Entry
       addEntry (string const& text, Literal markupTagName =nullptr)
         {
           auto buff = textLog_.get_buffer();
-          auto cursor = buff->get_insert();
-          buff->move_mark (cursor, buff->end());
+          auto begin = buff->create_mark (buff->end(), true);  // "left gravity": stays to the left of inserted text
+          auto after = buff->create_mark (buff->end(), false);//  "right gravity": sticks right behind the inserted text
           if (markupTagName)
             buff->insert_with_tag(buff->end(), text, cuString{markupTagName});
           else
             buff->insert (buff->end(), text);
           buff->insert (buff->end(), "\n");
-          textLog_.scroll_to (cursor);
-          return cursor;
+          textLog_.scroll_to (after);
+          return make_pair (move(begin), move(after));
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4f616e56b..f8d26919a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2063,8 +2063,7 @@
       da&#223; hier ## Zeilen gel&#246;scht wurden
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1538263469668" TEXT="addMsg">
@@ -2140,6 +2139,29 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537571794801" ID="ID_1255966338" MODIFIED="1538263469669" TEXT="einf&#xfc;gen">
 <icon BUILTIN="button_ok"/>
+<node CREATED="1538581675841" ID="ID_914012802" MODIFIED="1538581695036" TEXT="Problem: brauche Anfangs und Endpunkt">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node COLOR="#338800" CREATED="1538581696238" ID="ID_579972167" MODIFIED="1538581705246" TEXT="speichere ein Paar von Marken">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538581570783" ID="ID_1599117331" MODIFIED="1538581665660" TEXT="Problem: Ende wandert mit...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...das liegt vermutlich daran, da&#223; ich die zweite Marke mit &quot;right gravity&quot; einf&#252;ge,
+    </p>
+    <p>
+      aber eben am absoluten Ende des Buffers. Damit wird sie hinter jeder Einf&#252;gung bleiben
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-pink"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1538263469669" TEXT="reorganisieren">
 <icon BUILTIN="flag-yellow"/>
@@ -2190,14 +2212,17 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1538263469669" TEXT="clearInfoMsg">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725716254" ID="ID_1648079400" MODIFIED="1538263469669" TEXT="Fehler-Texte beiseite Speichern">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538581145248" ID="ID_643768128" MODIFIED="1538581206025" TEXT="neuen TextBuffer anlegen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725675884" ID="ID_1549487041" MODIFIED="1538263469669" TEXT="Textbuffer leeren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538581157502" ID="ID_1715975641" MODIFIED="1538581204913" TEXT="nur die Fehler-Eintr&#xe4;ge &#xfc;bertragen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725690450" ID="ID_314460083" MODIFIED="1538263469669" TEXT="Fehler-Bookmarks erneut einsetzen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538581168092" ID="ID_404563793" MODIFIED="1538581204032" TEXT="dabei auch einen neuen Mark-Index populieren">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538581183986" ID="ID_147260284" MODIFIED="1538581203099" TEXT="Alten gegen Neuen austauschen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1538263469669" TEXT="turnError_into_InfoMsg">
@@ -2223,9 +2248,9 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1538263469670" TEXT="revealYourself">
-<linktarget COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1538574689978" TEXT="revealYourself">
+<linktarget COLOR="#76a4ad" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1538263469670" TEXT="default-Impl doReveal()">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535726035309" ID="ID_1034773573" MODIFIED="1538263469670" TEXT="pr&#xfc;fen canReveal">
@@ -2263,9 +2288,9 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1538263469670" TEXT="konkret was machen, damit man die Funktion sehen kann">
-<linktarget COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" SOURCE="ID_1726008784" STARTARROW="None" STARTINCLINATION="890;-197;"/>
-<icon BUILTIN="flag-pink"/>
+<node COLOR="#338800" CREATED="1535756076321" ID="ID_1044092797" MODIFIED="1538574525101" TEXT="konkret was machen, damit man die Funktion sehen kann">
+<linktarget COLOR="#58c39d" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="169;308;" ID="Arrow_ID_1805058492" SOURCE="ID_1726008784" STARTARROW="None" STARTINCLINATION="890;-197;"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537461362558" ID="ID_1738911844" MODIFIED="1538263469670" TEXT="Idee: ggfs minimiertes DockItem wiederherstellen">
 <icon BUILTIN="idea"/>
 </node>
@@ -2276,8 +2301,15 @@
 <node CREATED="1537499313305" ID="ID_1086105877" MODIFIED="1538263469670" TEXT="von ErrorLogDisplay"/>
 <node CREATED="1537499333798" ID="ID_57237574" MODIFIED="1538263469670" TEXT="verdrahtet in InfoboxPanel::getLog()"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537499267335" ID="ID_608745909" MODIFIED="1538263469670" TEXT="keine Ahnung ob das was bewirkt">
-<icon BUILTIN="bell"/>
+<node CREATED="1537499267335" ID="ID_608745909" MODIFIED="1538574682605" TEXT="keine Ahnung ob das was bewirkt...">
+<icon BUILTIN="help"/>
+</node>
+<node COLOR="#338800" CREATED="1538574348519" FOLDED="true" ID="ID_1605278639" MODIFIED="1538574397921" TEXT="funktioniert">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538574378707" ID="ID_1292635888" MODIFIED="1538574394169" TEXT="es erzeugt ein neues freischwebendes Panel">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538574380386" ID="ID_1693045801" MODIFIED="1538574388709" TEXT="sofern das Panel vorher geschlossen wurde"/>
 </node>
 </node>
 </node>
@@ -2386,7 +2418,7 @@
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1538263469671" TEXT="mit close-signal verdrahten">
+<node COLOR="#990000" CREATED="1533689125583" FOLDED="true" ID="ID_1077285383" MODIFIED="1538574300844" TEXT="mit close-signal verdrahten">
 <icon BUILTIN="stop-sign"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534629989468" ID="ID_1497889519" MODIFIED="1534630008024" TEXT="close-Signal gibtsned">
 <icon BUILTIN="broken-line"/>
@@ -2644,8 +2676,8 @@
 </html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1538263469671" TEXT="reveal / revealYourself">
-<arrowlink COLOR="#af6a8f" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" STARTARROW="None" STARTINCLINATION="859;27;"/>
+<node CREATED="1534636369107" ID="ID_898428560" MODIFIED="1538574657332" TEXT="reveal / revealYourself">
+<arrowlink COLOR="#76a4ad" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1534636377938" ID="ID_64685935" MODIFIED="1538263469671" TEXT="Lumiera-Framework: Revealer">
@@ -2692,23 +2724,24 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1538263469672" TEXT="doRevealYourself()">
-<icon BUILTIN="bell"/>
-<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1538263469672">
+<node COLOR="#338800" CREATED="1534120150459" ID="ID_1466610963" MODIFIED="1538574630062" TEXT="doRevealYourself()">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1534120150460" ID="ID_1726008784" MODIFIED="1538574623534">
 <richcontent TYPE="NODE"><html>
   <head>
     
   </head>
   <body>
     <p>
-      <b><font color="#ae1414">TODO</font></b>: how can the Log-Widget be 'revealed'??
+      <b><font color="#3d51ac">L&#246;sung</font></b>: delegiere &#252;ber zwei Stufen...
     </p>
     <p>
-      Possibly allocate Widget, expand it. But how to make it visible?
+      Neue <b>Revealer</b>-Komponente bindet einen Funktor
     </p>
   </body>
-</html></richcontent>
-<arrowlink COLOR="#fa8074" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="131;259;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
+</html>
+</richcontent>
+<arrowlink COLOR="#58c39d" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="169;308;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1534120150457" ID="ID_1499287865" MODIFIED="1538277265473" TEXT="doReset()">
@@ -2942,7 +2975,7 @@
 <node COLOR="#338800" CREATED="1537835848674" ID="ID_1915433481" MODIFIED="1538263469675" TEXT="REVEAL">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1538239665856" ID="ID_518505874" MODIFIED="1538263469675" TEXT="EXPAND">
+<node COLOR="#338800" CREATED="1538239665856" FOLDED="true" ID="ID_518505874" MODIFIED="1538574272012" TEXT="EXPAND">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1538281532767" ID="ID_1335570495" MODIFIED="1538365732115" TEXT="Fehler: mu&#xdf; eigens separate GenNode bauen">
 <richcontent TYPE="NOTE"><html>
@@ -2957,8 +2990,7 @@
       und nicht string wie f&#252;r alle anderen state marks
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -2974,8 +3006,7 @@
       k
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1538281655774" ID="ID_1847834965" MODIFIED="1538281662977" TEXT="kann nur 1 und 0"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538281664349" FOLDED="true" ID="ID_1454517361" MODIFIED="1538441787807" TEXT="interessanter Folgefehler">
@@ -3013,8 +3044,7 @@
       Konzept ist <i>nicht</i>, sie gleich in die description zu &#252;bernehmen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 </node>
@@ -3049,8 +3079,7 @@
       keines! Impl verwendet <b>strdup</b>()
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -3097,8 +3126,7 @@
       ...denn wir verwenden das Lumiera-Exception-API gar nicht
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -3119,8 +3147,7 @@
       der Handler im ProcDispatcher sorgt daf&#252;r
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1538281715646" ID="ID_1541383645" MODIFIED="1538281762796" TEXT="emergency shutdown">
@@ -3143,8 +3170,7 @@
       ...welches keinen separaten Thread aufruft....?
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1538321104964" ID="ID_990799680" MODIFIED="1538321198833" TEXT="...und daher das Lock auf dem Subsystem-Runner bekommt">
 <icon BUILTIN="idea"/>
@@ -3167,8 +3193,7 @@
       n&#228;mlich im shutdownAll() weiter oben im Stack
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1538320996027" ID="ID_1914116148" MODIFIED="1538321019772" TEXT="STL verh&#xe4;lt sich hier anscheinend gutm&#xfc;tig">
@@ -3185,8 +3210,7 @@
       aber <i>genau der andere Thread,</i>&#160;der das gemacht hat...
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1538348598352" ID="ID_1090786435" MODIFIED="1538348613234" TEXT="iteriert als n&#xe4;chstes ebenfalls &#xfc;ber alle Subsysteme"/>
 <node CREATED="1538348625836" ID="ID_507678251" MODIFIED="1538348638230" TEXT="Fazit: Killen bis zur ersch&#xf6;pfung"/>
@@ -3236,8 +3260,7 @@
       Wenn das nun <i>wirklich</i>&#160;fehlschl&#228;gt, bleibt uns sinnvollerweise nur noch die Selbstmord-Option
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
@@ -3262,8 +3285,7 @@
       ein <b>ZombieCheck</b>&#160;spricht an
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-5"/>
 <node COLOR="#435e98" CREATED="1538281782245" ID="ID_888818129" MODIFIED="1538365399555" TEXT="welcher...">
 <icon BUILTIN="help"/>
@@ -3341,8 +3363,7 @@
       Abgebrochen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 <node CREATED="1538365543884" ID="ID_534885692" MODIFIED="1538365573259" TEXT="man beachte auch die zwei GTK-Assertions nach dem GUI-Shutdown">
 <icon BUILTIN="forward"/>
@@ -3415,8 +3436,7 @@
       ..damit ~GtkLumiera() garantiert <i>vorher</i>&#160;aufgerufen wird
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538440332187" HGAP="-48" ID="ID_393079011" MODIFIED="1538440532784" TEXT="Treffer, versenkt" VSHIFT="27">
@@ -3534,8 +3554,7 @@
       (hiv)~/devel/lumi-$
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 <node COLOR="#338800" CREATED="1538440505597" ID="ID_1015433202" MODIFIED="1538440524651" TEXT="#1178 Zombie race in GUI Subsystem shutdown">

From e9527d63044dbf654ec6afc0214749f84a298a9d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 3 Oct 2018 19:13:39 +0200
Subject: [PATCH 126/178] NotificationDisplay: proper handling of marks at
 insert position

Basically we create a pair of marks, with left/right gravity and then
inject the content between. Unfortunately, when the insert position
is the very end of the buffer (which it always is), this trick
leads to nesting the marked regions into each other.

As a remedy, we first insert the trailing newline,
and then attach the insert position one step before
---
 src/gui/widget/error-log-display.hpp |  44 ++++++----
 wiki/thinkPad.ichthyo.mm             | 118 ++++++++++++++++++++++++---
 2 files changed, 132 insertions(+), 30 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index a818056e2..526013c69 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -109,7 +109,8 @@ namespace widget {
   }
   
   
-  /**
+  
+  /*********************************************************************//**
    * Widget to display log and error messages.
    * Based on a multiline text display box with scrollbars.
    * Warning and error messages are highlighted by special formatting.
@@ -168,6 +169,7 @@ namespace widget {
           textLog_.get_buffer()->set_text (placeholder);  // discard existing content
         }
       
+      
       /** just add normal information message to buffer,
        *  without special markup and without expanding the widget */
       void
@@ -201,7 +203,7 @@ namespace widget {
       
       /**
        * clear all mere information messages;
-       * retain just the errors with tags
+       * retain just the previously tagged errors
        * @remark in fact populates a new buffer
        */
       void
@@ -211,12 +213,15 @@ namespace widget {
           vector<Entry> newMarks;
           for (Entry& entry : errorMarks_)
             {
+              newBuff->insert (newBuff->end(), "\n");
+              auto pos  = newBuff->end();
+              --pos;
               newMarks.emplace_back(
                 make_pair (
-                    newBuff->create_mark (newBuff->end(), true),     // "left gravity": stays to the left of inserted text
-                    newBuff->create_mark (newBuff->end(), false))); //  "right gravity": sticks right behind the inserted text))
+                    newBuff->create_mark (pos, true),     // "left gravity" : stays to the left of inserted text
+                    newBuff->create_mark (pos, false))); //  "right gravity": sticks right behind the inserted text))
               
-              newBuff->insert (newBuff->end()
+              newBuff->insert (pos                     //    copy from old to new buffer, complete with formatting tag
                               ,entry.first->get_iter()
                               ,entry.second->get_iter()
                               );
@@ -250,27 +255,32 @@ namespace widget {
     private:/* ===== Internals ===== */
       
       /** add message entry to the (ever growing) text buffer.
-       * @remark According to the [GTKmm tutorial], `TextView::scroll_to(iter)` is not reliable;
-       *         rather we need to use a text mark and set that text mark to the insert position.
-       *         Actually, there is always one predefined text mark [called "insert"][insert-mark],
-       *         which corresponds to the text cursor. Thus it suffices to navigate to text end,
-       *         insert and scroll into view.
+       * @return pair of anonymous marks bracketing the content added
+       * @remark an entry is content sans the following line break, which is appended automatically.
+       *         We inject the content _between_ two marks, which will adjust when content is altered.
+       * @remark According to the [API doc], `TextView::scroll_to(iter)` is not reliable; preferably
+       *         we should use a text mark and set that text mark to the [insert position][insert-mark].
+       *         The handling of marks and tags is described in the [GTKmm tutorial].
+       * @warning Each entry creates a new pair of marks. Not sure about the impact on performance...
        * 
        * [GTKmm tutorial]: https://developer.gnome.org/gtkmm-tutorial/stable/sec-textview-buffer.html.en#textview-marks
        * [insert-mark]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextMark.html#details
+       * [API doc]: https://developer.gnome.org/gtkmm/3.22/classGtk_1_1TextView.html#a8412941c4da9a71a381052d6049164e4
        */
       Entry
       addEntry (string const& text, Literal markupTagName =nullptr)
         {
           auto buff = textLog_.get_buffer();
-          auto begin = buff->create_mark (buff->end(), true);  // "left gravity": stays to the left of inserted text
-          auto after = buff->create_mark (buff->end(), false);//  "right gravity": sticks right behind the inserted text
-          if (markupTagName)
-            buff->insert_with_tag(buff->end(), text, cuString{markupTagName});
-          else
-            buff->insert (buff->end(), text);
           buff->insert (buff->end(), "\n");
-          textLog_.scroll_to (after);
+          auto pos  = buff->end();
+          --pos;
+          auto begin = buff->create_mark (pos, true);  // "left gravity" : stays to the left of inserted text
+          auto after = buff->create_mark (pos, false);//  "right gravity": sticks right behind the inserted text
+          if (markupTagName)
+            buff->insert_with_tag(pos, text, cuString{markupTagName});
+          else
+            buff->insert (pos, text);
+          textLog_.scroll_to (begin);
           return make_pair (move(begin), move(after));
         }
     };
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f8d26919a..106e5c755 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1773,7 +1773,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850841673" ID="ID_375492094" MODIFIED="1538263469667" TEXT="ParentView-Interface">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node CREATED="1504203667130" ID="ID_1745777873" MODIFIED="1538263469667" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log">
+<node CREATED="1504203667130" HGAP="50" ID="ID_1745777873" MODIFIED="1538584290312" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log" VSHIFT="2">
+<arrowlink COLOR="#98a2c5" DESTINATION="ID_217810080" ENDARROW="Default" ENDINCLINATION="1891;-1228;" ID="Arrow_ID_1688804340" STARTARROW="None" STARTINCLINATION="-1261;74;"/>
 <linktarget COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" SOURCE="ID_812129962" STARTARROW="None" STARTINCLINATION="808;0;"/>
 <linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
 <icon BUILTIN="forward"/>
@@ -2116,8 +2117,8 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1538263469669" TEXT="Bookmark speichern">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1538586532645" TEXT="Bookmark speichern">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1538263469669" TEXT="Technologie">
 <icon BUILTIN="info"/>
 <node CREATED="1537535925874" ID="ID_196796680" MODIFIED="1538263469669" TEXT="Tag / TagTable">
@@ -2146,7 +2147,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538581570783" ID="ID_1599117331" MODIFIED="1538581665660" TEXT="Problem: Ende wandert mit...">
+<node COLOR="#338800" CREATED="1538581570783" ID="ID_1599117331" MODIFIED="1538586033692" TEXT="Problem: Ende wandert mit...">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -2161,10 +2162,27 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-pink"/>
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538585387424" ID="ID_151756918" MODIFIED="1538585442447" TEXT="Trick: erst abschlie&#xdf;enden Zeilenumbruch">
+<icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571882918" ID="ID_620353485" MODIFIED="1538263469669" TEXT="reorganisieren">
-<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538585409653" ID="ID_584738161" MODIFIED="1538585447421">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...dann Einf&#252;gestelle <i>davor</i>&#160;platzieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1537571882918" ID="ID_620353485" MODIFIED="1538586057629" TEXT="reorganisieren">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1538586059134" ID="ID_5616537" MODIFIED="1538586065889" TEXT="besser wegwerfen und neu bauen"/>
 </node>
 </node>
 </node>
@@ -2210,8 +2228,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1538263469669" TEXT="clearInfoMsg">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1538586610313" TEXT="clearInfoMsg">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1538581145248" ID="ID_643768128" MODIFIED="1538581206025" TEXT="neuen TextBuffer anlegen">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2756,8 +2774,8 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1538263469672" TEXT="doClearMsg()">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150463" ID="ID_183847307" MODIFIED="1538586631566" TEXT="doClearMsg()">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150463" ID="ID_1378278687" MODIFIED="1538263469672" TEXT="&quot;remove all mere information messages&quot;">
 <icon BUILTIN="info"/>
 </node>
@@ -5014,9 +5032,20 @@
     </ul>
   </body>
 </html></richcontent>
+<node CREATED="1538583873795" ID="ID_1515056203" MODIFIED="1538583876382" TEXT="spezifisch">
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
 </node>
+<node CREATED="1538583877106" ID="ID_1825646582" MODIFIED="1538583879910" TEXT="generisch">
+<node CREATED="1538583886065" ID="ID_217810080" MODIFIED="1538584290312" TEXT="ErrorLogView">
+<linktarget COLOR="#98a2c5" DESTINATION="ID_217810080" ENDARROW="Default" ENDINCLINATION="1891;-1228;" ID="Arrow_ID_1688804340" SOURCE="ID_1745777873" STARTARROW="None" STARTINCLINATION="-1261;74;"/>
+<node CREATED="1538583894072" ID="ID_1836686899" MODIFIED="1538584118864" TEXT="Gtk::TextView + Mark-Index">
+<arrowlink COLOR="#3251a9" DESTINATION="ID_243616989" ENDARROW="Default" ENDINCLINATION="-2060;-1360;" ID="Arrow_ID_794678010" STARTARROW="None" STARTINCLINATION="-3506;-148;"/>
+<icon BUILTIN="info"/>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1537961731447" TEXT="frameworks">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -5028,7 +5057,7 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1537961734956" ID="ID_345535043" MODIFIED="1537961770028" TEXT="Notebook-Widget">
+<node CREATED="1537961734956" FOLDED="true" ID="ID_345535043" MODIFIED="1538583863918" TEXT="Notebook-Widget">
 <node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
 <icon BUILTIN="forward"/>
 <node CREATED="1537961797061" ID="ID_104206298" MODIFIED="1537961806159" TEXT="extrem viele Komponenten-Widgets"/>
@@ -37869,8 +37898,9 @@
 <node CREATED="1534635322938" ID="ID_1532459469" MODIFIED="1534635328573" TEXT="show_all zeigt rekursiv an"/>
 </node>
 </node>
-<node CREATED="1534634259498" ID="ID_1900017952" MODIFIED="1534635809110" TEXT="&quot;Schlie&#xdf;en&quot;">
+<node CREATED="1534634259498" FOLDED="true" ID="ID_1900017952" MODIFIED="1538583305997" TEXT="&quot;Schlie&#xdf;en&quot;">
 <linktarget COLOR="#6f7ab9" DESTINATION="ID_1900017952" ENDARROW="Default" ENDINCLINATION="-2264;0;" ID="Arrow_ID_1220603071" SOURCE="ID_146943890" STARTARROW="None" STARTINCLINATION="-6278;0;"/>
+<icon BUILTIN="button_cancel"/>
 <node CREATED="1534634292477" ID="ID_1867321008" MODIFIED="1534634310281">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -38812,6 +38842,68 @@
 </node>
 </node>
 </node>
+<node CREATED="1538583396203" ID="ID_243616989" MODIFIED="1538584118865" TEXT="TextView">
+<linktarget COLOR="#3251a9" DESTINATION="ID_243616989" ENDARROW="Default" ENDINCLINATION="-2060;-1360;" ID="Arrow_ID_794678010" SOURCE="ID_1836686899" STARTARROW="None" STARTINCLINATION="-3506;-148;"/>
+<node CREATED="1538583408897" ID="ID_1222725022" MODIFIED="1538583418805" TEXT="das Editor-Widget">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538583420272" ID="ID_438604441" MODIFIED="1538583449944" TEXT="Model == Buffer">
+<node CREATED="1538583478040" ID="ID_511541932" MODIFIED="1538583483915" TEXT="kann getauscht werden"/>
+<node CREATED="1538583484647" ID="ID_457973011" MODIFIED="1538583504768" TEXT="Buffer gemeinsam verwenden"/>
+</node>
+<node CREATED="1538583507988" HGAP="72" ID="ID_1806257929" MODIFIED="1538583518616" TEXT="TextBuffer" VSHIFT="18">
+<node CREATED="1538583533033" ID="ID_964637986" MODIFIED="1538583734951" TEXT="Konzepte">
+<icon BUILTIN="info"/>
+<node CREATED="1538583627852" ID="ID_1431409524" MODIFIED="1538583630676" TEXT="Position">
+<node CREATED="1538583632075" ID="ID_1308223917" MODIFIED="1538583654421">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      stets <i>zwischen </i>den Zeichen
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1538583655744" ID="ID_415292974" MODIFIED="1538583682595">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b>Danke</b>! endlich bekommt das mal jemand korrekt hin
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+<node CREATED="1538583535896" ID="ID_81892828" MODIFIED="1538583539908" TEXT="TextIterator">
+<node CREATED="1538583541231" ID="ID_1777219378" MODIFIED="1538583544571" TEXT="fl&#xfc;chtig"/>
+<node CREATED="1538583546679" ID="ID_1182183621" MODIFIED="1538583555801" TEXT="kann intelligent navigieren">
+<node CREATED="1538583567436" ID="ID_750990432" MODIFIED="1538583573647" TEXT="Zeichen"/>
+<node CREATED="1538583573995" ID="ID_881520087" MODIFIED="1538583579166" TEXT="n&#xe4;chstes Wort"/>
+<node CREATED="1538583579754" ID="ID_198678641" MODIFIED="1538583582742" TEXT="n&#xe4;chste Zeile"/>
+</node>
+<node CREATED="1538583556374" ID="ID_661377638" MODIFIED="1538583562128" TEXT="wei&#xdf; viel &#xfc;ber seine Position"/>
+</node>
+<node CREATED="1538583588689" ID="ID_1850195952" MODIFIED="1538583593741" TEXT="TextMark">
+<node CREATED="1538583596768" ID="ID_281650917" MODIFIED="1538583612602" TEXT="dauerhafte Positionsmarke"/>
+<node CREATED="1538583613326" ID="ID_1642730307" MODIFIED="1538583618193" TEXT="wandert mit"/>
+<node CREATED="1538583618989" ID="ID_870667973" MODIFIED="1538583624848" TEXT="left/right gravity"/>
+</node>
+<node CREATED="1538583722679" ID="ID_80198934" MODIFIED="1538583725898" TEXT="TextTag">
+<node CREATED="1538583726990" ID="ID_679389681" MODIFIED="1538583730874" TEXT="Formatierung / Markup"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1477526858307" ID="ID_676269117" MODIFIED="1518487921100" TEXT="custom widget">
 <node COLOR="#ca1b00" CREATED="1477526864162" ID="ID_1385929770" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1518487921100" TEXT="Beispiel">

From 5aa28626ad2ac5344ec1747cebe89f4df77b1347 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 3 Oct 2018 19:33:28 +0200
Subject: [PATCH 127/178] NotificationDisplay: function to demote error entries
 into warnings

...and remove them from the mark-index for special handling
---
 src/gui/widget/error-log-display.hpp | 13 +++++++++-
 wiki/thinkPad.ichthyo.mm             | 38 ++++++++++++++--------------
 2 files changed, 31 insertions(+), 20 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 526013c69..3f5d316b1 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -238,10 +238,21 @@ namespace widget {
           addInfo (_Fmt{_("───════ %d old log lines removed ════───\n")} % (oldLines-newLines));
         }
       
+      
+      /** visit all errors and downgrade the markup; discard all bookmarks */
       void
       turnError_into_InfoMsg()
         {
-          UNIMPLEMENTED ("visit all errors and downgrade the markup; discard all bookmarks");
+          auto buff = textLog_.get_buffer();
+          for (Entry& entry : errorMarks_)
+            {
+              auto begin = entry.first->get_iter();
+              auto end = entry.second->get_iter();
+              
+              buff->remove_tag_by_name(uString{TAG_ERROR}, begin,end);
+              buff->apply_tag_by_name (uString{TAG_WARN}, begin,end);
+            }
+          errorMarks_.clear();
         }
       
       void
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 106e5c755..f582a7386 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2072,9 +2072,9 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1538263469668" TEXT="addError">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1538263469668" TEXT="spezieller Markup">
+<node COLOR="#338800" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1538587727278" TEXT="spezieller Markup">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" SOURCE="ID_580465154" STARTARROW="None" STARTINCLINATION="225;0;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1538263469668" TEXT="Tags anlegen">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1538263469668" TEXT="k&#xe4;ren: CSS?">
@@ -2112,12 +2112,12 @@
 <node COLOR="#338800" CREATED="1537571949893" ID="ID_328949056" MODIFIED="1538263469669" TEXT="Tags zuweisen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1538263469669" TEXT="Tags entfernen">
+<node COLOR="#338800" CREATED="1537571956436" ID="ID_1806243350" MODIFIED="1538587722314" TEXT="Tags entfernen">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" SOURCE="ID_383201596" STARTARROW="None" STARTINCLINATION="294;-15;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534725501467" ID="ID_1420459325" MODIFIED="1538586532645" TEXT="Bookmark speichern">
+<node COLOR="#338800" CREATED="1534725501467" FOLDED="true" ID="ID_1420459325" MODIFIED="1538587929492" TEXT="Bookmark speichern">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1537535919147" ID="ID_1338221225" MODIFIED="1538263469669" TEXT="Technologie">
 <icon BUILTIN="info"/>
@@ -2243,14 +2243,14 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1538263469669" TEXT="turnError_into_InfoMsg">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1538263469669" TEXT="Markup reduzieren">
+<node COLOR="#338800" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1538587717273" TEXT="turnError_into_InfoMsg">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1538587760128" TEXT="Markup reduzieren">
 <arrowlink DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" STARTARROW="None" STARTINCLINATION="294;-15;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1538263469669" TEXT="Bookmarks entfernen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534725587112" ID="ID_31905080" MODIFIED="1538587763137" TEXT="Bookmarks entfernen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1538263469669" TEXT="triggerFlash">
@@ -2669,8 +2669,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1538263469671" TEXT="bei Bedarf anzeigen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1538587918512" TEXT="bei Bedarf anzeigen">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1538263469671" TEXT="ebenfalls explizit zu bauen">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1534636352398" ID="ID_435790811" MODIFIED="1538263469671" TEXT="&#xe4;hnliche Lage wie bei Destroy">
@@ -2807,16 +2807,16 @@
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1538263469673" TEXT="doClearErr()">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150464" ID="ID_1675673289" MODIFIED="1538587773087" TEXT="doClearErr()">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150465" ID="ID_1858186015" MODIFIED="1538263469673" TEXT="&quot;clear error state. If widget exists, turn all error entries into mere information entries&quot;">
 <icon BUILTIN="info"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531617621" ID="ID_447071799" MODIFIED="1538263469673" TEXT="doMark()">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531624828" ID="ID_52936917" MODIFIED="1538263469673" TEXT="Spezialbehandlung + Chain, um die Warnungs State-marks abzugreifen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531617621" ID="ID_447071799" MODIFIED="1538587782757" TEXT="doMark()">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537531624828" ID="ID_52936917" MODIFIED="1538587791541" TEXT="Spezialbehandlung + Chain, um die Warnungs State-marks abzugreifen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1538263469673" TEXT="doFlash()">

From fb4d9be2b405d3a4fda9b16bbd90475984ac175d Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 4 Oct 2018 04:06:30 +0200
Subject: [PATCH 128/178] draft generic decorator to make a widget flash

not finished, having problems with Lumiera's stylesheet
---
 src/gui/model/expander-revealer.hpp  |   2 +-
 src/gui/model/flash-deco.hpp         |  93 +++++++++++++
 src/gui/style-scheme.cpp             |  44 ++++++
 src/gui/style-scheme.hpp             |  58 ++++++++
 src/gui/widget/error-log-display.hpp |   5 +-
 wiki/thinkPad.ichthyo.mm             | 195 ++++++++++++++++++++++++---
 6 files changed, 371 insertions(+), 26 deletions(-)
 create mode 100644 src/gui/model/flash-deco.hpp
 create mode 100644 src/gui/style-scheme.cpp
 create mode 100644 src/gui/style-scheme.hpp

diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index bdf91bba0..41c5db905 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -35,7 +35,7 @@
  ** ## Usage in the default implementation
  ** 
  ** The base class of all [tangible UI elements](\ref Tangible) provides a default implementation
- ** for these generic interaction mechanism: It offers slots to connect UI signals against, and
+ ** for these generic interaction mechanisms: It offers slots to connect UI signals against, and
  ** it understands the \em `mark` messages `"expand"` and `"revealYourself"`. These are implemented
  ** by delegating to the \ref Expander and \ref Revealer functors respectively. Moreover, this
  ** default implementation automatically detects a resulting state change and emits an appropriate
diff --git a/src/gui/model/flash-deco.hpp b/src/gui/model/flash-deco.hpp
new file mode 100644
index 000000000..fd86071d5
--- /dev/null
+++ b/src/gui/model/flash-deco.hpp
@@ -0,0 +1,93 @@
+/*
+  FLASH-DECO.hpp  -  widget decorator to add a visual flash action
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file flash-deco.hpp
+ ** Decorator to add the ability to display a visual flash action to a GTK widget.
+ ** The protocol for operating UI elements connected to the [UI-Bus](\ref ui-bus.hpp) includes
+ ** a message to make the receiving widget flash for a short time, to mandate the users attention.
+ ** The visual change itself is effected by adding a CSS class, while adding a timeout callback
+ ** to revert to normal display after a short timespan. In itself, this modification sequence
+ ** is entirely generic, and can thus be added by decorating the widget to affect; moreover,
+ ** adding such a callback need to be done properly, to avoid a crash in case the widget
+ ** is destroyed during the timeout period.
+ ** 
+ ** @see [UI-Element protocol](\ref tangible.hpp)
+ ** @see [usage example](\ref error-log-display.hpp)
+ ** 
+ */
+
+
+#ifndef GUI_MODEL_FLASH_DECO_H
+#define GUI_MODEL_FLASH_DECO_H
+
+
+#include "gui/gtk-base.hpp"
+#include "gui/style-scheme.hpp"
+
+//#include <utility>
+
+
+namespace gui {
+namespace model {
+
+//  using std::move;
+  
+  
+  /**
+   * Decorator for a Gtk::Widget to add a visual flash action.
+   * @tparam WIT type of the target widget to decorate. All ctors are passed through.
+   * @remark invoke the #flash function to trigger
+   */
+  template<class WIT>
+  class FlashDeco
+    {
+      static_assert (std::is_base_of<Gtk::Widget, WIT>()
+                    ,"wrapped target type required to be a Gtk::Widget");
+    public:
+      using WIT::WIT;
+      
+      void
+      flash()
+        {
+          auto styleContext = this->get_style_context();
+          styleContext->add_class (CSS_CLASS_FLASH);
+          
+          Glib::signal_timeout()
+            .connect_once (sigc::mem_fun(*this, &FlashDeco::flashback)
+                          ,STYLE_FLASH_DURATION_in_ms
+                          ,Glib::PRIORITY_LOW);   // after all pending drawing tasks
+        }
+      
+    private:
+      void
+      flashback()
+        {
+          auto styleContext = this->get_style_context();
+          styleContext->remove_class (CSS_CLASS_FLASH);
+        }
+    };
+  
+  
+  
+}} // namespace gui::model
+#endif /*GUI_MODEL_FLASH_DECO_H*/
diff --git a/src/gui/style-scheme.cpp b/src/gui/style-scheme.cpp
new file mode 100644
index 000000000..3809ab0cd
--- /dev/null
+++ b/src/gui/style-scheme.cpp
@@ -0,0 +1,44 @@
+/*
+  StyleScheme  -  magic keys to access uniform styling scheme
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+
+/** @file style-scheme.hpp
+ ** Definition of access keys for uniform UI styling.
+ ** 
+ ** @see gui::workspace::UiStyle
+ ** 
+ */
+
+#include "gui/gtk-base.hpp"
+#include "gui/style-scheme.hpp"
+
+namespace gui {
+  
+  const Literal TAG_ERROR{"ERROR"};              ////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
+  const Literal TAG_WARN{"WARN"};
+  
+  cuString CSS_CLASS_FLASH{"indication_flash"};
+  const uint STYLE_FLASH_DURATION_in_ms = 1100;
+  
+  
+  
+}// namespace gui
diff --git a/src/gui/style-scheme.hpp b/src/gui/style-scheme.hpp
new file mode 100644
index 000000000..383ae8987
--- /dev/null
+++ b/src/gui/style-scheme.hpp
@@ -0,0 +1,58 @@
+/*
+  STYLE_SCHEME.hpp  -  magic keys to access uniform styling scheme
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file style-scheme.hpp
+ ** Hard wired key constants to access a global uniform styling scheme.
+ ** 
+ ** @todo as or 10/2018 this is mere placeholder code. The StyleManager needs rework
+ ** 
+ ** @see ui-style.hpp
+ ** 
+ */
+
+#ifndef GUI_STYLE_SCHEME_H
+#define GUI_STYLE_SCHEME_H
+
+
+#include "lib/symbol.hpp"
+
+
+namespace Glib {
+  class ustring;
+}
+namespace gui {
+  
+  using lib::Literal;
+  using cuString = const Glib::ustring;
+  
+  
+  extern const Literal TAG_ERROR;                    ////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
+  extern const Literal TAG_WARN;
+  
+  extern cuString CSS_CLASS_FLASH;
+  extern const uint STYLE_FLASH_DURATION_in_ms;
+  
+  
+  
+}// namespace gui
+#endif /*GUI_STYLE_SCHEME_H*/
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 3f5d316b1..44e75ed23 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -60,6 +60,7 @@
 #define GUI_WIDGET_ERROR_LOG_DISPLAY_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/style-scheme.hpp"
 #include "gui/model/expander-revealer.hpp"
 #include "include/gui-notification-facade.h"
 #include "lib/format-string.hpp"
@@ -83,10 +84,6 @@ namespace widget {
   
   namespace {
     
-    const Literal TAG_ERROR{"ERROR"};           /////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
-    const Literal TAG_WARN{"WARN"};
-    
-    
     using Tag = Glib::RefPtr<Gtk::TextBuffer::Tag>;
     
     /**
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index f582a7386..ea598d09e 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2095,12 +2095,21 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1538263469669" TEXT="Style-Manager vorsehen">
+<node COLOR="#338800" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1538589740205" TEXT="Style-Manager vorsehen">
 <arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
 <linktarget COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" SOURCE="ID_1053927695" STARTARROW="None" STARTINCLINATION="-17;39;"/>
 <linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538588393995" HGAP="214" ID="ID_828368967" MODIFIED="1538589740205" TEXT="#1168 : find a way to manage style of custom extended UI elements" VSHIFT="19">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node COLOR="#435e98" CREATED="1538588393995" FOLDED="true" HGAP="212" ID="ID_47427991" MODIFIED="1538589740205" TEXT="geeignetes Aufrufmuster schon mal angelegt" VSHIFT="-1">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538588510003" ID="ID_217668977" MODIFIED="1538588519598" TEXT="anscheinend geht hier nix per CSS"/>
+<node CREATED="1538588520377" ID="ID_178600292" MODIFIED="1538588531044" TEXT="daher: Tags per Name einf&#xfc;gen"/>
+<node CREATED="1538588531824" ID="ID_1287551637" MODIFIED="1538588544522" TEXT="Tags zentral populieren"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1538263469669" TEXT="Tag f&#xfc;r Warnung">
 <icon BUILTIN="button_ok"/>
@@ -2257,13 +2266,105 @@
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1538263469669" TEXT="farbigen Rahmen">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1538263469670" TEXT="vorl&#xe4;ufig feste Farbe">
+<node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1538618155829" TEXT="verwende zus&#xe4;tzliche Klasse">
 <arrowlink COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <icon BUILTIN="yes"/>
 </node>
+<node CREATED="1538618157537" ID="ID_1728464265" MODIFIED="1538618167395" TEXT="Problem: kaputtes Stylesheet">
+<node CREATED="1538618179734" ID="ID_1693288014" MODIFIED="1538618198551" TEXT="das Lumiera-eigene Stylesheet funktioniert praktisch gar nicht mehr"/>
+<node CREATED="1538618201035" ID="ID_1034140537" MODIFIED="1538618349191" TEXT="...seitdem die Engine &apos;Adwaitha&apos; nicht mehr gefunden wird">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ca 2014 finde ich einige Blog-Eintr&#228;ge, da&#223; jetzt keine Theming-Engine mehr notwendig ist,
+    </p>
+    <p>
+      weil man alles per CSS machen kann. Seit Jessie findet GTK die Engine nicht mehr,
+    </p>
+    <p>
+      obwohl das Standard-Theme-Paket installiert ist.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Dummerweise funktioniert nun aber auch das &#220;bersteuern mit unseren Farben nicht mehr
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1538263469670" TEXT="timeout setzen">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1538590120545" ID="ID_1847571040" MODIFIED="1538590128908" TEXT="Glib::timeout nutzen"/>
+<node CREATED="1538590129616" ID="ID_9828219" MODIFIED="1538590145185" TEXT="analog zum Ctor InteractionDirector">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538590112698" ID="ID_360284784" MODIFIED="1538590117466" TEXT="generisch anlegen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538591568439" ID="ID_1863162820" MODIFIED="1538591578447" TEXT="Idee: Flasher">
+<icon BUILTIN="idea"/>
+<node CREATED="1538591875574" ID="ID_701299048" MODIFIED="1538592020697" TEXT="mu&#xdf; von Gtk::Widget erben">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1538591734386" ID="ID_1790046084" MODIFIED="1538591749203" TEXT="void flash()">
+<node CREATED="1538591895692" ID="ID_954326123" MODIFIED="1538591904679" TEXT="installiert Glib::timeout"/>
+<node CREATED="1538591905458" ID="ID_817752728" MODIFIED="1538591950857" TEXT="f&#xfc;gt CSS-Klasse hinzu"/>
+</node>
+<node CREATED="1538591750359" ID="ID_1546318660" MODIFIED="1538591768721" TEXT="void flashback()">
+<node CREATED="1538591954100" ID="ID_248197618" MODIFIED="1538591969766" TEXT="vom Timeout aufgerufen"/>
+<node CREATED="1538591970498" ID="ID_1898943385" MODIFIED="1538591977037" TEXT="entfernt CSS-Klasse"/>
+</node>
+</node>
+<node CREATED="1538592070125" ID="ID_30810203" MODIFIED="1538592411749" TEXT="Varianten">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1538592125238" ID="ID_1673239146" MODIFIED="1538592131969" TEXT="hat WLink auf target-widget">
+<node CREATED="1538592323691" ID="ID_567150569" MODIFIED="1538592333222" TEXT="lebt irgendwo als Member"/>
+<node CREATED="1538592438724" ID="ID_1623451463" MODIFIED="1538592446455" TEXT="mu&#xdf; explizit mit dem Target verbunden werden"/>
+</node>
+<node CREATED="1538592135452" ID="ID_526442862" MODIFIED="1538592170019" TEXT="freischwebende selbsterhaltende Heap-Allokation">
+<node CREATED="1538592277209" ID="ID_1333427334" MODIFIED="1538592290619" TEXT="flashback() endet mit Suizid"/>
+<node CREATED="1538592450338" ID="ID_1611670382" MODIFIED="1538592470811" TEXT="Memory-Leak wenn flashback() ausbleibt"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538592473055" ID="ID_1323523600" MODIFIED="1538592481210" TEXT="Beschlu&#xdf;: Mixin-Design">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1538606819103" ID="ID_404941112" MODIFIED="1538607019739" TEXT="Balance">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      denn dieses Design gibt die beste Balance zwischen den Belangen
+    </p>
+    <ul>
+      <li>
+        kein zus&#228;tzlicher Speicherbedarf
+      </li>
+      <li>
+        Callback ist automatisch abgesichert (sigc::mem_fun auf Trackable)
+      </li>
+      <li>
+        kann direkt auf das Styling des Parent zugreifen
+      </li>
+    </ul>
+    <p>
+      Einziger Nachteil ist die etwas verwirrende Schreibweise des dekorierten Typs
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1538607106686" ID="ID_1879979063" MODIFIED="1538607368158" TEXT="z.B: FlashDeco&lt;Gtk::TextView&gt;"/>
+</node>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1538574689978" TEXT="revealYourself">
@@ -5189,6 +5290,9 @@
 <node CREATED="1537661322914" ID="ID_165076190" MODIFIED="1537661331868" TEXT="per synthetisiertem Widget-Path"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538588393995" ID="ID_1149076483" MODIFIED="1538588397979" TEXT="#1168 : find a way to manage style of custom extended UI elements">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 </node>
@@ -5338,6 +5442,40 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1495234856782" ID="ID_1605922951" MODIFIED="1518487921060" TEXT="machen wir bisher nicht"/>
 <node CREATED="1495234865717" ID="ID_1261122199" MODIFIED="1518487921060" TEXT="ist das notwendig?"/>
+<node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1538588303275" TEXT="wohl nicht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      wenn die GTK-Loop angehalten wird,
+    </p>
+    <p>
+      dann koppelt sich GTK anscheinend auch
+    </p>
+    <p>
+      automatisch vom Window-Manager ab.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Jedenfalls habe ich nun schon mehrfach den Shutdown &quot;von unten&quot; getriggert,
+    </p>
+    <p>
+      und es wurden alle Fenster geschlossen.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Allerdings habe ich an der Stelle immer noch GTK-Assertions
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
 </node>
 </node>
 </node>
@@ -6366,7 +6504,7 @@
 <node CREATED="1504463020913" ID="ID_808284638" MODIFIED="1518487921063" TEXT="[optional] Gruppe"/>
 <node CREATED="1504463028384" ID="ID_1928250888" MODIFIED="1518487921063" TEXT="View-ID"/>
 </node>
-<node CREATED="1504479185405" HGAP="50" ID="ID_50865654" MODIFIED="1523746854594" TEXT="abgeleitet aus Fokus-Koordinaten" VSHIFT="15">
+<node CREATED="1504479185405" HGAP="50" ID="ID_50865654" MODIFIED="1538589849694" TEXT="abgeleitet aus Fokus-Koordinaten" VSHIFT="15">
 <arrowlink COLOR="#a9a5cd" DESTINATION="ID_150523428" ENDARROW="Default" ENDINCLINATION="1440;-3055;" ID="Arrow_ID_1485937133" STARTARROW="None" STARTINCLINATION="1109;-37;"/>
 <icon BUILTIN="info"/>
 </node>
@@ -18612,7 +18750,7 @@
 </node>
 <node COLOR="#338800" CREATED="1532788645307" ID="ID_254810710" MODIFIED="1533325370427" TEXT="Trigger-Technik kl&#xe4;ren">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1532788681197" HGAP="336" ID="ID_32192034" MODIFIED="1533608413832" TEXT="bei GTK selber abschauen" VSHIFT="-52">
+<node CREATED="1532788681197" FOLDED="true" HGAP="336" ID="ID_32192034" MODIFIED="1538589894276" TEXT="bei GTK selber abschauen" VSHIFT="-52">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18829,7 +18967,7 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1532788727680" HGAP="69" ID="ID_889790361" MODIFIED="1533608413837" TEXT="Gtk::Main auf aktuellem Stand" VSHIFT="12">
+<node COLOR="#338800" CREATED="1532788727680" FOLDED="true" HGAP="69" ID="ID_889790361" MODIFIED="1538589862471" TEXT="Gtk::Main auf aktuellem Stand" VSHIFT="12">
 <linktarget COLOR="#70dcb9" DESTINATION="ID_889790361" ENDARROW="Default" ENDINCLINATION="1308;0;" ID="Arrow_ID_1988524020" SOURCE="ID_1815764983" STARTARROW="Default" STARTINCLINATION="-2084;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1532788737366" ID="ID_1527913663" MODIFIED="1532788745870" TEXT="aktuellen Code bereitlegen in Eclipse">
@@ -19004,7 +19142,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1532793816029" ID="ID_519518808" MODIFIED="1533608413842" TEXT="Glib::Dispatcher">
+<node CREATED="1532793816029" FOLDED="true" ID="ID_519518808" MODIFIED="1538589833848" TEXT="Glib::Dispatcher">
 <linktarget COLOR="#c1a9ad" DESTINATION="ID_519518808" ENDARROW="Default" ENDINCLINATION="70;0;" ID="Arrow_ID_985135564" SOURCE="ID_1796116534" STARTARROW="None" STARTINCLINATION="149;-223;"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1532793842721" ID="ID_1258451078" MODIFIED="1532793868919" TEXT="schon integriert in unseren UiDispatcher">
@@ -19019,7 +19157,7 @@
 <node CREATED="1533310381845" ID="ID_833159461" MODIFIED="1533310389328" TEXT="setzt laufende event-Loop voraus"/>
 </node>
 </node>
-<node CREATED="1533310412185" ID="ID_968448480" MODIFIED="1533608413843" TEXT="Aktivierungs-Signal">
+<node CREATED="1533310412185" FOLDED="true" ID="ID_968448480" MODIFIED="1538589832097" TEXT="Aktivierungs-Signal">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533310421328" ID="ID_1168151937" MODIFIED="1533310429603" TEXT="Gtk::Application macht das so"/>
 <node CREATED="1533310430167" ID="ID_1809941457" MODIFIED="1533310441873" TEXT="setzt eine GApplication (=Gio::Application) voraus"/>
@@ -19051,7 +19189,7 @@
 <node CREATED="1533221115139" ID="ID_1655397510" MODIFIED="1533221117607" TEXT="wer sonst?"/>
 <node CREATED="1533221118267" ID="ID_517862983" MODIFIED="1533221132317" TEXT="er verk&#xf6;rpert &quot;das Globale&quot;"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533221145295" ID="ID_45639892" MODIFIED="1533608413850" TEXT="Problem: Zugang zum NotificationService">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533221145295" FOLDED="true" ID="ID_45639892" MODIFIED="1538589835488" TEXT="Problem: Zugang zum NotificationService">
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1533221554888" ID="ID_1545304194" MODIFIED="1533221603239" TEXT="wird explizit erst von UiManager::performMainLoop() installiert">
 <icon BUILTIN="broken-line"/>
@@ -19104,7 +19242,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1533223360183" ID="ID_1309454354" MODIFIED="1533608413852" TEXT="Idee">
+<node CREATED="1533223360183" FOLDED="true" ID="ID_1309454354" MODIFIED="1538589813571" TEXT="Idee: weiterer Dispatcher">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533223371534" ID="ID_891597430" MODIFIED="1533310719489" TEXT="UiDispatcher">
 <icon BUILTIN="stop-sign"/>
@@ -19119,7 +19257,7 @@
 <node CREATED="1533252172584" ID="ID_230437417" MODIFIED="1533252187890" TEXT="setzt zwingend voraus, da&#xdf; die Event-Loop schon l&#xe4;uft"/>
 </node>
 </node>
-<node CREATED="1533221770859" ID="ID_1962039642" MODIFIED="1533608413857" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
+<node CREATED="1533221770859" FOLDED="true" ID="ID_1962039642" MODIFIED="1538589780400" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533310637466" ID="ID_1772394299" MODIFIED="1533385333187" TEXT="wo?">
 <font NAME="SansSerif" SIZE="12"/>
@@ -26017,7 +26155,7 @@
 <node CREATED="1487273377603" ID="ID_1842094630" MODIFIED="1518487921088" TEXT="SpotLocator"/>
 </node>
 <node CREATED="1487272813119" ID="ID_1794274698" MODIFIED="1518487921088" TEXT="Bezug">
-<node CREATED="1504460091831" ID="ID_150523428" MODIFIED="1523746854594" TEXT="Koordinatensystem">
+<node CREATED="1504460091831" ID="ID_150523428" MODIFIED="1538589849694" TEXT="Koordinatensystem">
 <linktarget COLOR="#a9a5cd" DESTINATION="ID_150523428" ENDARROW="Default" ENDINCLINATION="1440;-3055;" ID="Arrow_ID_1485937133" SOURCE="ID_50865654" STARTARROW="None" STARTINCLINATION="1109;-37;"/>
 <node CREATED="1504462869149" ID="ID_248419130" MODIFIED="1518487921088" TEXT="beschreibt Zugangsweg">
 <icon BUILTIN="yes"/>
@@ -38031,13 +38169,28 @@
 <node CREATED="1537577874195" ID="ID_385552696" MODIFIED="1537577883741" TEXT="style-context zum Widget beziehen"/>
 <node CREATED="1537577885042" ID="ID_9820896" MODIFIED="1537577900187" TEXT="diesem Context die spezielle Klasse hinzuf&#xfc;gen"/>
 <node CREATED="1537577901032" ID="ID_1836919045" MODIFIED="1537577913426" TEXT="diese Klasse kann nun im CSS-Selektor verwendet werden"/>
-<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1537577928192" TEXT="geht das auch via GTKmm">
-<icon BUILTIN="help"/>
-<node CREATED="1537577929540" ID="ID_644837001" MODIFIED="1537577942529" TEXT="diverse Hinweise, da&#xdf; es nur direkt in C geht">
-<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1538609593918" TEXT="geht einfach per GTKmm">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Glib::RefPtr&lt;StyleContext&gt; context = widget-&gt;get_style_context();
+    </p>
+    <p>
+      context-&gt;add_class(&quot;ohMy&quot;);
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+<node CREATED="1537577929540" ID="ID_644837001" MODIFIED="1538609519542" TEXT="fr&#xfc;her ging das nur direkt in C">
+<icon BUILTIN="ksmiletris"/>
 </node>
-<node COLOR="#803457" CREATED="1537577957752" ID="ID_36168340" LINK="https://stackoverflow.com/questions/37609381/how-to-set-a-specific-css-class-to-a-widget-in-gtk3-c" MODIFIED="1537658796933" TEXT="C-Beispiel auf Stackoverflow">
-<linktarget COLOR="#c1a9a9" DESTINATION="ID_36168340" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_843556021" SOURCE="ID_903275997" STARTARROW="None" STARTINCLINATION="68;8;"/>
+<node COLOR="#803457" CREATED="1537577957752" ID="ID_36168340" LINK="https://stackoverflow.com/questions/37609381/how-to-set-a-specific-css-class-to-a-widget-in-gtk3-c" MODIFIED="1538609485588" TEXT="C-Beispiel auf Stackoverflow"/>
+<node COLOR="#803457" CREATED="1537577957752" ID="ID_1015117751" LINK="https://stackoverflow.com/questions/37609381/how-to-set-a-specific-css-class-to-a-widget-in-gtk3-c" MODIFIED="1538609495664" TEXT="C++-L&#xf6;sung auf Stackoverflow">
+<linktarget COLOR="#c1a9a9" DESTINATION="ID_1015117751" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_1206355372" SOURCE="ID_903275997" STARTARROW="None" STARTINCLINATION="68;8;"/>
 </node>
 </node>
 </node>
@@ -38071,8 +38224,8 @@
 <node CREATED="1537658770555" ID="ID_920908371" MODIFIED="1537658777916" TEXT="nicht klar, ob das in C++ geht">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1537658785336" ID="ID_903275997" MODIFIED="1537658802879" TEXT="Beispiel">
-<arrowlink COLOR="#c1a9a9" DESTINATION="ID_36168340" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_843556021" STARTARROW="None" STARTINCLINATION="68;8;"/>
+<node CREATED="1537658785336" ID="ID_903275997" MODIFIED="1538609485588" TEXT="Beispiel">
+<arrowlink COLOR="#c1a9a9" DESTINATION="ID_1015117751" ENDARROW="Default" ENDINCLINATION="56;152;" ID="Arrow_ID_1206355372" STARTARROW="None" STARTINCLINATION="68;8;"/>
 </node>
 </node>
 </node>
@@ -38185,7 +38338,7 @@
 <node CREATED="1533388072628" ID="ID_1382049092" MODIFIED="1533388077743" TEXT="dieser wird on demand erzeugt"/>
 <node CREATED="1533388078595" ID="ID_1456212114" MODIFIED="1533388091037" TEXT="dieser wird von den run()-Funktionen &quot;gepullt&quot;"/>
 </node>
-<node CREATED="1533388113350" ID="ID_1546795729" MODIFIED="1533388208027" TEXT="Glib::signal_idle()">
+<node CREATED="1533388113350" FOLDED="true" ID="ID_1546795729" MODIFIED="1538589961840" TEXT="Glib::signal_idle()">
 <node CREATED="1533388147720" ID="ID_1897188155" MODIFIED="1533388158218" TEXT="&#xfc;bergebene Closure l&#xe4;uft erst in der Event-Loop"/>
 <node CREATED="1533388162662" ID="ID_1573817854" MODIFIED="1533388168352" TEXT="kann aber schon vorher hinzugef&#xfc;gt werden"/>
 <node CREATED="1533388185290" ID="ID_1158890484" MODIFIED="1533388238450" TEXT="verwendet main_context_default">
@@ -38204,7 +38357,7 @@
 </node>
 <node CREATED="1533388309295" ID="ID_775603522" MODIFIED="1533388317610" TEXT="man kann connect_once() macne"/>
 </node>
-<node CREATED="1533388128579" ID="ID_580405745" MODIFIED="1533388506937" TEXT="Glib::signal_timeout()">
+<node CREATED="1533388128579" FOLDED="true" ID="ID_580405745" MODIFIED="1538589960352" TEXT="Glib::signal_timeout()">
 <linktarget COLOR="#5568a6" DESTINATION="ID_580405745" ENDARROW="Default" ENDINCLINATION="-472;0;" ID="Arrow_ID_244184105" SOURCE="ID_1586631508" STARTARROW="None" STARTINCLINATION="-2132;-72;"/>
 <node CREATED="1533388319102" ID="ID_1118350475" MODIFIED="1533388324553" TEXT="analog wie signal_idle()"/>
 <node CREATED="1533388325053" ID="ID_1341702889" MODIFIED="1533388334672" TEXT="Timeout in Millisekunden"/>

From b7180735f9be25109e23c63d6673cabf6d355bf9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 5 Oct 2018 00:29:48 +0200
Subject: [PATCH 129/178] StyleCSS: abandon using a theme engine

In GTK-2 you'd always use a theming engine.
During the transitional period, GTK-3 followed that path,
but at the point when the new CSS based system was mature enough,
this approach was discouraged, since it means to ship additional
executable code and defeats the purpose of configuring the look
of the application through one coherent set of rules.

As it turns out, debian continued to ship the 'adwaita' for some
extended transitional period, but in Stretch it is gone, which broke
our half-way ported stylesheet.

This changeset removes the use of a theming engine, and fixes tha
basic look by adding the background-color: inherit, which pushes aside
many (but not all) of the default theme definitions.

However, our stylesheet remains mostly broken and TODO for now
---
 src/gui/gtk-lumiera.css        | 5 ++---
 src/gui/workspace/ui-style.cpp | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/gui/gtk-lumiera.css b/src/gui/gtk-lumiera.css
index 20ffe9a52..6e22479ca 100644
--- a/src/gui/gtk-lumiera.css
+++ b/src/gui/gtk-lumiera.css
@@ -35,13 +35,12 @@
 
 
   * {
-    engine: adwaita;
-    
     border-width: 1px;
     border-style: outset;
     border-color: shade(@bg_color, 0.80);
     
-    color: inherit; /* by default inherit content colour from parent widget */
+    color:            inherit; /* by default inherit content colour from parent widget */
+    background-color: inherit;
 }
 
 GtkWindow {
diff --git a/src/gui/workspace/ui-style.cpp b/src/gui/workspace/ui-style.cpp
index 2315866b1..065c2215b 100644
--- a/src/gui/workspace/ui-style.cpp
+++ b/src/gui/workspace/ui-style.cpp
@@ -96,7 +96,7 @@ namespace workspace {
       }
     
     Gtk::StyleContext::add_provider_for_screen (screen, css_provider,
-                                                GTK_STYLE_PROVIDER_PRIORITY_USER);
+                                                GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
   }
   
   

From e573d3cc96f3896c691a4ab5c0f8a3b1540aa484 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 5 Oct 2018 03:25:50 +0200
Subject: [PATCH 130/178] StyleCSS: add alternative stylesheet to be comined
 with the system theme (#1170)

Even while we (still) have the goal to ship our own stylesheet and provide
the typical subdued media-aplication look, right now this porting and styling effort (#1023)
is unfinished and handled with rather low priority (writing code is more important
than toying with styles and looks).

This alternative stylesheet is meant to be used with a typical "light" desktop theme.
We'll add just the bare minimum of definitions to make lumiera work well in that setup.
And right now, I'll use that setup to continue with my development work
---
 data/config/setup.ini                      |   3 +-
 src/common/configfacade.cpp                |   2 +-
 src/gui/lumiera-light-theme-complement.css |  25 ++++
 src/gui/{gtk-lumiera.css => lumiera.css}   |   5 +-
 wiki/thinkPad.ichthyo.mm                   | 144 ++++++++++++++++++++-
 5 files changed, 175 insertions(+), 4 deletions(-)
 create mode 100644 src/gui/lumiera-light-theme-complement.css
 rename src/gui/{gtk-lumiera.css => lumiera.css} (98%)

diff --git a/data/config/setup.ini b/data/config/setup.ini
index aaa0e2f2a..bffb29e92 100644
--- a/data/config/setup.ini
+++ b/data/config/setup.ini
@@ -18,6 +18,7 @@ authors      = Joel Holdsworth|Christian Thäter|Hermann Voßeler|Stefan Kangas|
 copyright    = 2007 - 2015
 
 [Gui]
-stylesheet   = gtk-lumiera.css
+#stylesheet  = lumiera.css
+stylesheet   = lumiera-light-theme-complement.css
 iconpath     = $ORIGIN/../../share/lumiera/icons:$ORIGIN/gui/icons:~/.lumiera/icons
 resourcepath = $ORIGIN/../../share/lumiera/gui:$ORIGIN/gui
diff --git a/src/common/configfacade.cpp b/src/common/configfacade.cpp
index 3841f14eb..74d915aea 100644
--- a/src/common/configfacade.cpp
+++ b/src/common/configfacade.cpp
@@ -35,7 +35,7 @@
  ** @todo as of 2016, this seems not to be used much, if at all.
  **       The GTK-UI, which in itself is very preliminary, retrieves
  **       some values from configuration, most notably the name of
- **       the GTK stylesheet (`gtk-lumiera.css` is the default)
+ **       the GTK stylesheet (`lumiera.css` is the default)
  */
 
 
diff --git a/src/gui/lumiera-light-theme-complement.css b/src/gui/lumiera-light-theme-complement.css
new file mode 100644
index 000000000..841c07fa1
--- /dev/null
+++ b/src/gui/lumiera-light-theme-complement.css
@@ -0,0 +1,25 @@
+/*
+  lumiera-light-theme-complement.css  -  minimal supplement for GTK-3 light style sheet
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  Styles and Graphics of the Lumiera GUI can be used and redistributed
+  under the the terms of the GNU General Public License version 2 or
+  above, or (at your option) under Creative Commons CC-By-SA.
+
+* ********************************************************/
+
+
+/* CSS stylesheet to provide the additional definitions
+ * required to run the Lumiera GTK UI with a typical
+ * "light" standard system theme
+ */
+
+
+
+
+/* ---------- Styles for Lumiera Widgets ---------- */
+
+
+/* ---------- Styles for special markup ---------- */
diff --git a/src/gui/gtk-lumiera.css b/src/gui/lumiera.css
similarity index 98%
rename from src/gui/gtk-lumiera.css
rename to src/gui/lumiera.css
index 6e22479ca..d9aa1a722 100644
--- a/src/gui/gtk-lumiera.css
+++ b/src/gui/lumiera.css
@@ -1,5 +1,5 @@
 /*
-  gtk-lumiera.css  -  GTK-3 style sheet for the Lumiera GUI
+  lumiera.css  -  GTK-3 style sheet for the Lumiera GUI
 
   Copyright (C)         Lumiera.org
     2014,               Hermann Vosseler <Ichthyostega@web.de>
@@ -275,3 +275,6 @@ class "gtkmm__CustomObject_TimelineRuler" style:highest "timeline_ruler"
 class "gtkmm__CustomObject_TimelineHeaderWidget" style:highest "timeline_header_widget"
 
 */
+
+
+/* ---------- Styles for special markup ---------- */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index ea598d09e..0479d1cdb 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5293,6 +5293,137 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538588393995" ID="ID_1149076483" MODIFIED="1538588397979" TEXT="#1168 : find a way to manage style of custom extended UI elements">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538695838262" ID="ID_407627538" MODIFIED="1538695872693" TEXT="lumiera-(light|dark)-theme-complement.css">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1538695878400" ID="ID_1937289801" MODIFIED="1538695949316" TEXT="wir liefern Stylesheets zur Erg&#xe4;nzung des System-Themas">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538695897046" ID="ID_382934959" MODIFIED="1538695910912" TEXT="als w&#xe4;hlbare Alternative zu unserem Applikations-Stylesheet"/>
+<node CREATED="1538695912900" ID="ID_161292075" MODIFIED="1538695941951" TEXT="diese enthalten nur die minimal notwendigen Erg&#xe4;nzungen">
+<icon BUILTIN="yes"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538702238122" ID="ID_1439139961" MODIFIED="1538702244642" TEXT="#1170 care for interplay with light, dark and high contrast themes">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538696008591" ID="ID_441937774" MODIFIED="1538696020396" TEXT="Lumiera Stylesheet">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1538696023165" ID="ID_698985788" MODIFIED="1538696026176" TEXT="lumiera.css"/>
+<node CREATED="1538696026884" ID="ID_1880901613" MODIFIED="1538696095664" TEXT="wir liefern unser eigenes Applikations-Stylesheet">
+<icon BUILTIN="idea"/>
+<node CREATED="1538696052161" ID="ID_1715392243" MODIFIED="1538696338168" TEXT="abgeleitet vom Ardour-Stylesheet">
+<arrowlink DESTINATION="ID_1918479292" ENDARROW="Default" ENDINCLINATION="132;0;" ID="Arrow_ID_146898233" STARTARROW="None" STARTINCLINATION="74;-5;"/>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538696060808" ID="ID_82400982" MODIFIED="1538696104325" TEXT="seinerzeit von Joel Holdsworth">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538696069551" ID="ID_1095339421" MODIFIED="1538696086330" TEXT="dezenter Meda-Application look">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538696238952" ID="ID_1693017073" MODIFIED="1538696253657" TEXT="Portierung GTK2 -&gt; CSS (GTK3)">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538696262533" ID="ID_472703036" MODIFIED="1538696275863" TEXT="2014 rudiment&#xe4;r, dann steckengeblieben">
+<icon BUILTIN="bell"/>
+</node>
+<node CREATED="1538696307615" ID="ID_1918479292" MODIFIED="1538696338168" TEXT="was macht eigentlich Ardour heute?">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1918479292" ENDARROW="Default" ENDINCLINATION="132;0;" ID="Arrow_ID_146898233" SOURCE="ID_1715392243" STARTARROW="None" STARTINCLINATION="74;-5;"/>
+<icon BUILTIN="help"/>
+<node CREATED="1538699094129" HGAP="61" ID="ID_1901117568" MODIFIED="1538699111156" TEXT="B&#xe4;&#xe4;&#xe4;h! GTK-2 verwenden" VSHIFT="3">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538702167475" ID="ID_1067979840" MODIFIED="1538702173539" TEXT="#1023 Lumiera GTK stylesheet">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1538696355832" ID="ID_1442093424" MODIFIED="1538696361515" TEXT="Probleme">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1538696365447" ID="ID_721732470" MODIFIED="1538696427312" TEXT="Theming-Engine">
+<icon BUILTIN="stop-sign"/>
+<node CREATED="1538696371086" ID="ID_1893037783" MODIFIED="1538696382523" TEXT="wir hatten Clearlooks. Gibts nicht mehr">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538696393835" ID="ID_1157806021" MODIFIED="1538696423381" TEXT="ersatzweise Adwaita, Gibts auch nicht mehr">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538696429774" ID="ID_1862679821" LINK="https://web.archive.org/web/20180829072234/https://blogs.gnome.org/mclasen/2014/06/13/a-new-default-theme-for-gtk/" MODIFIED="1538696707146" TEXT="das ganze Konzept ist obsolet">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="stop-sign"/>
+</node>
+<node COLOR="#338800" CREATED="1538696720743" ID="ID_50558236" MODIFIED="1538696741285" TEXT="ersatzlos entfernt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      CSS gen&#252;gt
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538696756026" ID="ID_67620335" MODIFIED="1538697233933" TEXT="Interferenz mit dem System-Thema">
+<icon BUILTIN="pencil"/>
+<node CREATED="1538696777327" ID="ID_1226163317" MODIFIED="1538696787962" TEXT="Problem: repetitive Definitionen"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538696788838" ID="ID_12898010" LINK="https://stackoverflow.com/q/52655725/444796" MODIFIED="1538696916231" TEXT="auf Stackoverflow gefragt">
+<icon BUILTIN="help"/>
+</node>
+<node CREATED="1538696930403" HGAP="38" ID="ID_280002018" MODIFIED="1538697125725" TEXT="Idee: &quot;inherit&quot; auf h&#xf6;chster Ebene" VSHIFT="3">
+<icon BUILTIN="idea"/>
+<node CREATED="1538696962271" ID="ID_46020871" MODIFIED="1538696986223" TEXT="unser Stylesheet hat GTK_STYLE_PROVIDER_PRIORITY_APPLICATION"/>
+<node CREATED="1538696988803" ID="ID_1662822982" MODIFIED="1538697103482">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      f&#252;ge <i>m&#246;glichst hoch</i>&#160;in der Hierarchie Regeln ein,
+    </p>
+    <p>
+      die ein property auf den Wert '<font face="Monospaced"><b>inherit</b></font>' setzten
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      z.B. in den Block mit den &quot;default-Regeln&quot;
+    </p>
+    <p>
+      &#160;&#160;* {
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;color:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;inherit; /* by default inherit content colour from parent widget */
+    </p>
+    <p>
+      &#160;&#160;&#160;&#160;background-color: inherit;
+    </p>
+    <p>
+      }
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538697207110" ID="ID_415528083" MODIFIED="1538697222628" TEXT="border korrekt/geschickt setzen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -37990,14 +38121,25 @@
 <edge COLOR="#b4a9e3"/>
 <font NAME="SansSerif" SIZE="16"/>
 <node CREATED="1439664217489" ID="ID_104059794" MODIFIED="1518487921099" TEXT="GTK-3">
-<node CREATED="1439664230168" ID="ID_235548644" LINK="https://wiki.gnome.org/Projects/GTK%2B/Inspector" MODIFIED="1518487921099" TEXT="GKT+ Inspector">
+<node CREATED="1439664230168" ID="ID_235548644" LINK="https://wiki.gnome.org/Projects/GTK%2B/Inspector" MODIFIED="1538692325236" TEXT="GKT+ Inspector">
 <icon BUILTIN="idea"/>
 <node CREATED="1439664318604" ID="ID_1327496126" MODIFIED="1518487921099" TEXT="keyboard shortcut">
 <node CREATED="1439664330354" ID="ID_257893375" MODIFIED="1518487921099" TEXT="SHIFT-Ctrl I"/>
 <node CREATED="1439664339353" ID="ID_559550607" MODIFIED="1518487921099" TEXT="aktivieren via dconf">
+<node CREATED="1538693388521" ID="ID_1129767870" MODIFIED="1538693391989" TEXT="per Editor">
 <node CREATED="1439664358287" ID="ID_1044303564" MODIFIED="1518487921099" TEXT="apt-get install dconf-editor"/>
 <node CREATED="1439664574202" ID="ID_1254903463" MODIFIED="1518487921099" TEXT="org &gt; gtk &gt; settings &gt; debug"/>
 </node>
+<node CREATED="1538693397856" ID="ID_469176877" MODIFIED="1538693401371" TEXT="Kommandozeile">
+<node CREATED="1538693413542" ID="ID_1265168543" MODIFIED="1538693414945" TEXT="gsettings set org.gtk.Settings.Debug enable-inspector-keybinding true"/>
+</node>
+</node>
+</node>
+<node CREATED="1538693418285" ID="ID_1301334145" MODIFIED="1538693425960" TEXT="direkt mit Applikation starten">
+<node CREATED="1538693436099" MODIFIED="1538693436099" TEXT="GTK_DEBUG=interactive target/lumiera"/>
+</node>
+<node CREATED="1538693451665" ID="ID_599439426" MODIFIED="1538693472219" TEXT="seit GTK+ 3.14 in der Standard-Distro">
+<icon BUILTIN="info"/>
 </node>
 <node CREATED="1439664638857" ID="ID_1095180651" MODIFIED="1518487921099">
 <richcontent TYPE="NODE"><html>

From 33af82cf737547ed574dfcc488245dde84811393 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 5 Oct 2018 05:36:53 +0200
Subject: [PATCH 131/178] NotificationDisplay: now responding to the "Flash"
 message on UI-Bus

solved by temporarily adding a CSS class.
Mostly this was an issue of writing the Stylesheet properly.

Hint: use the GTK+ inspector, i.e. run with

GTK_DEBUG=interactive target/lumiera
---
 src/gui/ctrl/notification-hub.hpp          |  14 +-
 src/gui/lumiera-light-theme-complement.css |   8 +
 src/gui/lumiera.css                        |   8 +
 src/gui/model/flash-deco.hpp               |   2 +
 src/gui/style-scheme.cpp                   |   2 +-
 src/gui/widget/error-log-display.hpp       |  17 +-
 wiki/thinkPad.ichthyo.mm                   | 198 ++++++++++++++-------
 7 files changed, 171 insertions(+), 78 deletions(-)

diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index c380c29c7..ec027d41f 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -26,8 +26,8 @@
  ** This component is addressed in order to show error, warning and notification messages
  ** in the UI. It is responsible for maintaining a local log of these messages, and to
  ** allocate an appropriate display widgets, to show such notifications asynchronously.
- ** On first use, an InfoboxPanel is allocated to hold an ErrorlogWidget for presentation
- ** of those messages
+ ** On first use, an InfoboxPanel is allocated to hold an ErrorLogDisplay widget for
+ ** presentation of those messages
  ** 
  ** # Notification Controller Behaviour
  ** 
@@ -47,7 +47,6 @@
  **   to reveal or expand the widget (but if necessary, a new widget is allocated)
  ** - error messages also set an error marker state (*TODO* reflect this in the presentation),
  **   and they cause the display widget to be expanded
- **   (*TODO* 8/18 consider also call the doRevealYourself() function)
  ** - the error state can be _cleared_, which also demotes all error messages to mere information.
  ** - information content can also be _cleared_, which removes all mere information messages,
  **   while retaining the error entries.
@@ -70,8 +69,6 @@
 #include "gui/model/w-link.hpp"
 
 #include <functional>
-//#include <memory>
-//#include <list>
 
 
 namespace gui {
@@ -188,8 +185,8 @@ namespace ctrl {
       
      ~NotificationHub() { };
       
-    private:
       
+    private:
       /** external operation to find or allocate an log display widget */
       WidgetAllocator allocateWidget_;
       
@@ -204,14 +201,9 @@ namespace ctrl {
             widget_.connect (allocateWidget_());
           return *widget_;
         }
-      
     };
   
   
   
-  /** */
-  
-  
-  
 }}// namespace gui::ctrl
 #endif /*GUI_CTRL_NOTIFICATION_HUB_H*/
diff --git a/src/gui/lumiera-light-theme-complement.css b/src/gui/lumiera-light-theme-complement.css
index 841c07fa1..1539e5609 100644
--- a/src/gui/lumiera-light-theme-complement.css
+++ b/src/gui/lumiera-light-theme-complement.css
@@ -23,3 +23,11 @@
 
 
 /* ---------- Styles for special markup ---------- */
+
+  .indication_flash,
+  .indication_flash * {
+    background-color: LightYellow;
+}
+  .indication_flash text {
+    border: 4px solid red;
+}
diff --git a/src/gui/lumiera.css b/src/gui/lumiera.css
index d9aa1a722..38b117352 100644
--- a/src/gui/lumiera.css
+++ b/src/gui/lumiera.css
@@ -278,3 +278,11 @@ class "gtkmm__CustomObject_TimelineHeaderWidget" style:highest "timeline_header_
 
 
 /* ---------- Styles for special markup ---------- */
+
+  .indication_flash,
+  .indication_flash * {
+    background-color: shade(@hover_bg_color, 1.6);
+}
+  .indication_flash text {
+    border: 4px solid red;
+}
diff --git a/src/gui/model/flash-deco.hpp b/src/gui/model/flash-deco.hpp
index fd86071d5..dbd5d290c 100644
--- a/src/gui/model/flash-deco.hpp
+++ b/src/gui/model/flash-deco.hpp
@@ -57,9 +57,11 @@ namespace model {
    * Decorator for a Gtk::Widget to add a visual flash action.
    * @tparam WIT type of the target widget to decorate. All ctors are passed through.
    * @remark invoke the #flash function to trigger
+   * @see \ref gui::CSS_CLASS_FLASH
    */
   template<class WIT>
   class FlashDeco
+    : public WIT
     {
       static_assert (std::is_base_of<Gtk::Widget, WIT>()
                     ,"wrapped target type required to be a Gtk::Widget");
diff --git a/src/gui/style-scheme.cpp b/src/gui/style-scheme.cpp
index 3809ab0cd..c0a9212eb 100644
--- a/src/gui/style-scheme.cpp
+++ b/src/gui/style-scheme.cpp
@@ -36,7 +36,7 @@ namespace gui {
   const Literal TAG_ERROR{"ERROR"};              ////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
   const Literal TAG_WARN{"WARN"};
   
-  cuString CSS_CLASS_FLASH{"indication_flash"};
+  cuString CSS_CLASS_FLASH{"indication_flash"};                      ///< CSS class added temporarily to make a widget "flash" in response to the corresponding UI-Bus message 
   const uint STYLE_FLASH_DURATION_in_ms = 1100;
   
   
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 44e75ed23..3a2fce578 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -61,13 +61,12 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/style-scheme.hpp"
+#include "gui/model/flash-deco.hpp"
 #include "gui/model/expander-revealer.hpp"
 #include "include/gui-notification-facade.h"
 #include "lib/format-string.hpp"
 #include "lib/symbol.hpp"
-//#include "lib/util.hpp"
 
-//#include <memory>
 #include <utility>
 #include <vector>
 
@@ -125,10 +124,11 @@ namespace widget {
       
       using Mark = Glib::RefPtr<Gtk::TextBuffer::Mark>;
       using Entry = std::pair<Mark,Mark>;
+      using TextWidget = model::FlashDeco<Gtk::TextView>;
       
       vector<Entry> errorMarks_;
-      Gtk::TextView textLog_;
-
+      TextWidget    textLog_;
+      
     public:
      ~ErrorLogDisplay() { };
       
@@ -154,7 +154,7 @@ namespace widget {
       model::Revealer reveal;
       
       
-      /** empty buffer and discard all error bookmarks */
+      /** empty text buffer and discard all error bookmarks */
       void
       clearAll()
         {
@@ -252,10 +252,15 @@ namespace widget {
           errorMarks_.clear();
         }
       
+      
+      /** temporarily change display style to prompt for attention;
+       *  set callback-timeout to return to normal state.
+       * @see \ref gui::CSS_CLASS_FLASH
+       */
       void
       triggerFlash()
         {
-          UNIMPLEMENTED ("paint and set callback-timeout to return to normal state");
+          textLog_.flash();
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0479d1cdb..0341d5f1a 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2077,15 +2077,29 @@
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537571906634" ID="ID_1839759637" MODIFIED="1538263469668" TEXT="Tags anlegen">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1538263469668" TEXT="k&#xe4;ren: CSS?">
+<node COLOR="#435e98" CREATED="1537571917625" ID="ID_1900926418" MODIFIED="1538707219751" TEXT="k&#xe4;ren: CSS?">
 <icon BUILTIN="help"/>
 <node COLOR="#435e98" CREATED="1535629564615" HGAP="43" ID="ID_1432671260" MODIFIED="1538263469668" TEXT="GTK-Styling, CSS f&#xfc;r Custom-Widgets" VSHIFT="-35">
 <arrowlink COLOR="#6277b2" DESTINATION="ID_1174884362" ENDARROW="Default" ENDINCLINATION="-2315;-45;" ID="Arrow_ID_380937946" STARTARROW="None" STARTINCLINATION="-7413;0;"/>
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1537661752104" ID="ID_373027917" MODIFIED="1538263469668" TEXT="wohl nicht so einfach"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1538263469668" TEXT="Untersuchen per Inspector">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537661764454" ID="ID_1004400727" MODIFIED="1538707271502" TEXT="Untersuchen per Inspector">
+<icon BUILTIN="info"/>
+<node CREATED="1538707192879" ID="ID_253847354" MODIFIED="1538707208726" TEXT="jedes Tag ist einzeln in der Objekt-Hierarchie vorhanden"/>
+<node CREATED="1538707176081" ID="ID_1239285032" MODIFIED="1538707284654">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      erscheint <b>definitiv nicht</b>&#160;als CSS-Node
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1538263469668" TEXT="vorl&#xe4;ufig hart verdrahten">
 <icon BUILTIN="button_ok"/>
@@ -2169,8 +2183,7 @@
       aber eben am absoluten Ende des Buffers. Damit wird sie hinter jeder Einf&#252;gung bleiben
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1538585387424" ID="ID_151756918" MODIFIED="1538585442447" TEXT="Trick: erst abschlie&#xdf;enden Zeilenumbruch">
 <icon BUILTIN="idea"/>
@@ -2185,8 +2198,7 @@
       ...dann Einf&#252;gestelle <i>davor</i>&#160;platzieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1537571882918" ID="ID_620353485" MODIFIED="1538586057629" TEXT="reorganisieren">
@@ -2262,15 +2274,35 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1538263469669" TEXT="triggerFlash">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1538263469669" TEXT="farbigen Rahmen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1538707538947" TEXT="triggerFlash">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1538707390908" TEXT="farbigen Rahmen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534725366734" ID="ID_951505172" MODIFIED="1538618155829" TEXT="verwende zus&#xe4;tzliche Klasse">
 <arrowlink COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" STARTARROW="None" STARTINCLINATION="649;0;"/>
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1538618157537" ID="ID_1728464265" MODIFIED="1538618167395" TEXT="Problem: kaputtes Stylesheet">
+<node COLOR="#338800" CREATED="1538707399447" ID="ID_1845737933" MODIFIED="1538707478472" TEXT="Rahmen auch auf Kind-Objekte setzen">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538707420444" ID="ID_334911121" MODIFIED="1538707474258" TEXT="denn nur so erscheint er z.B. bei einem TextView">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das Widget hat offensichtlich keine eigene graphische Repr&#228;sentation.
+    </p>
+    <p>
+      dieser Fall d&#252;rfte h&#228;ufiger auftreten
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1538618157537" ID="ID_1728464265" MODIFIED="1538707385953" TEXT="Problem: kaputtes Stylesheet">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538618179734" ID="ID_1693288014" MODIFIED="1538618198551" TEXT="das Lumiera-eigene Stylesheet funktioniert praktisch gar nicht mehr"/>
 <node CREATED="1538618201035" ID="ID_1034140537" MODIFIED="1538618349191" TEXT="...seitdem die Engine &apos;Adwaitha&apos; nicht mehr gefunden wird">
 <richcontent TYPE="NOTE"><html>
@@ -2294,20 +2326,39 @@
       Dummerweise funktioniert nun aber auch das &#220;bersteuern mit unseren Farben nicht mehr
     </p>
   </body>
+</html></richcontent>
+</node>
+<node COLOR="#338800" CREATED="1538707301511" ID="ID_265456880" MODIFIED="1538707377967" TEXT="vorl&#xe4;ufig gel&#xf6;st">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538707313237" ID="ID_1871755466" MODIFIED="1538707323542" TEXT="Theming-Engine nicht mehr notwendig"/>
+<node CREATED="1538707324276" ID="ID_876477218" MODIFIED="1538707360310" TEXT="alternatives Erg&#xe4;nzungs-Stylesheet angelegt">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...welches ich zusammen mit meinem
+    </p>
+    <p>
+      normalen 'light' destkop-theme verwenden kann
+    </p>
+  </body>
 </html>
 </richcontent>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1538263469670" TEXT="timeout setzen">
-<icon BUILTIN="flag-yellow"/>
+</node>
+<node COLOR="#338800" CREATED="1534725292080" ID="ID_1462887421" MODIFIED="1538707482309" TEXT="timeout setzen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538590120545" ID="ID_1847571040" MODIFIED="1538590128908" TEXT="Glib::timeout nutzen"/>
 <node CREATED="1538590129616" ID="ID_9828219" MODIFIED="1538590145185" TEXT="analog zum Ctor InteractionDirector">
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538590112698" ID="ID_360284784" MODIFIED="1538590117466" TEXT="generisch anlegen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538590112698" ID="ID_360284784" MODIFIED="1538707536079" TEXT="generisch anlegen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538591568439" ID="ID_1863162820" MODIFIED="1538591578447" TEXT="Idee: Flasher">
 <icon BUILTIN="idea"/>
 <node CREATED="1538591875574" ID="ID_701299048" MODIFIED="1538592020697" TEXT="mu&#xdf; von Gtk::Widget erben">
@@ -2360,8 +2411,7 @@
       Einziger Nachteil ist die etwas verwirrende Schreibweise des dekorierten Typs
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1538607106686" ID="ID_1879979063" MODIFIED="1538607368158" TEXT="z.B: FlashDeco&lt;Gtk::TextView&gt;"/>
 </node>
@@ -2447,8 +2497,8 @@
 </node>
 <node COLOR="#338800" CREATED="1533689055601" ID="ID_335901895" MODIFIED="1538263469670" TEXT="InfoboxPanel anlegen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1534523190695" FOLDED="true" ID="ID_1941760302" MODIFIED="1538263469670" TEXT="ErrorLog bei Bedarf belegen">
-<arrowlink COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" STARTARROW="None" STARTINCLINATION="-4;127;"/>
+<node COLOR="#338800" CREATED="1534523190695" FOLDED="true" ID="ID_1941760302" MODIFIED="1538708596522" TEXT="ErrorLog bei Bedarf belegen">
+<arrowlink COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" STARTARROW="None" STARTINCLINATION="4;109;"/>
 <linktarget COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" SOURCE="ID_329149746" STARTARROW="None" STARTINCLINATION="670;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534523686836" ID="ID_1130300208" MODIFIED="1534524660559" TEXT="per smart-ptr halten">
@@ -2468,7 +2518,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1533689065976" ID="ID_1456563113" MODIFIED="1538263469670" TEXT="NotificationController im Wizzard ansiedeln">
+<node COLOR="#435e98" CREATED="1533689065976" FOLDED="true" ID="ID_1456563113" MODIFIED="1538708587864" TEXT="NotificationController im Wizzard ansiedeln">
 <icon BUILTIN="full-1"/>
 <node CREATED="1533768795377" ID="ID_377710833" MODIFIED="1538263469670" TEXT="wirklich ein eigenst&#xe4;ndiger Controller??">
 <icon BUILTIN="help"/>
@@ -2532,8 +2582,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1538263469671" TEXT="View belegen">
-<linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="-4;127;"/>
+<node COLOR="#338800" CREATED="1533689120536" ID="ID_1806645586" MODIFIED="1538708596522" TEXT="View belegen">
+<linktarget COLOR="#88a8b3" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="-186;-20;" ID="Arrow_ID_948128706" SOURCE="ID_1941760302" STARTARROW="None" STARTINCLINATION="4;109;"/>
 <linktarget COLOR="#726b86" DESTINATION="ID_1806645586" ENDARROW="Default" ENDINCLINATION="232;27;" ID="Arrow_ID_246715972" SOURCE="ID_1305015272" STARTARROW="None" STARTINCLINATION="180;-21;"/>
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2829,8 +2879,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1538263469672" TEXT="Controller-Interface">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1538708532160" TEXT="Controller-Interface">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1538263469672" TEXT="Expander">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1534120150459" ID="ID_1182032725" MODIFIED="1538263469672" TEXT="&quot;Allocate Widget if necessary, expand widget&quot;">
@@ -2858,8 +2908,7 @@
       Neue <b>Revealer</b>-Komponente bindet einen Funktor
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#58c39d" DESTINATION="ID_1044092797" ENDARROW="Default" ENDINCLINATION="169;308;" ID="Arrow_ID_1805058492" STARTARROW="None" STARTINCLINATION="890;-197;"/>
 </node>
 </node>
@@ -2920,8 +2969,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1538263469673" TEXT="doFlash()">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534120150465" ID="ID_1862649971" MODIFIED="1538707824819" TEXT="doFlash()">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1534120150465" ID="ID_222097969" MODIFIED="1538263469673">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -2945,7 +2994,7 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1538263469673" TEXT="in NotificationService integrieren">
+<node COLOR="#435e98" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1538708568344" TEXT="in NotificationService integrieren">
 <icon BUILTIN="full-4"/>
 </node>
 <node COLOR="#435e98" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1538263469673" TEXT="Pling! -Button">
@@ -3757,28 +3806,28 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" SOURCE="ID_1984401497" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1538263469675" TEXT="Funktionen">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531078757" ID="ID_605735534" MODIFIED="1538263469675" TEXT="Reset">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1538708635973" TEXT="Funktionen">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1537531078757" ID="ID_605735534" MODIFIED="1538708629270" TEXT="Reset">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531084396" ID="ID_648584085" MODIFIED="1538263469675" TEXT="Meldung ausgeben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531084396" ID="ID_648584085" MODIFIED="1538708616965" TEXT="Meldung ausgeben">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531543495" ID="ID_1813117782" MODIFIED="1538263469675" TEXT="Warnung anzeigen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531543495" ID="ID_1813117782" MODIFIED="1538708618921" TEXT="Warnung anzeigen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531109361" ID="ID_1483169066" MODIFIED="1538263469675" TEXT="Fehler ausgeben">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531109361" ID="ID_1483169066" MODIFIED="1538708620397" TEXT="Fehler ausgeben">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531089012" ID="ID_1427238207" MODIFIED="1538263469675" TEXT="alle Meldungen entfernen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531089012" ID="ID_1427238207" MODIFIED="1538708630612" TEXT="alle Meldungen entfernen">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531153739" ID="ID_538123549" MODIFIED="1538263469676" TEXT="Fehler in Meldungen verwandeln">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531153739" ID="ID_538123549" MODIFIED="1538708632010" TEXT="Fehler in Meldungen verwandeln">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537531160298" ID="ID_1717013245" MODIFIED="1538263469676" TEXT="Flash">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537531160298" ID="ID_1717013245" MODIFIED="1538708633930" TEXT="Flash">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -5339,6 +5388,37 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538702167475" ID="ID_1067979840" MODIFIED="1538702173539" TEXT="#1023 Lumiera GTK stylesheet">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538710332658" ID="ID_584658644" MODIFIED="1538710456511" TEXT="Bugfixes...">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538710354271" ID="ID_79614027" MODIFIED="1538710455015" TEXT="inherit verwenden">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538710363741" ID="ID_1130951877" MODIFIED="1538710451743" TEXT="Widget-Namen korrekt schreiben">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538710376229" ID="ID_806378376" MODIFIED="1538710405535" TEXT="in GTK-2 war das z.B. GtkWindow">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1538710388956" ID="ID_17203500" MODIFIED="1538710402683" TEXT="in GTK-3 entspricht das window">
+<icon BUILTIN="forward"/>
+</node>
+<node CREATED="1538710407602" ID="ID_1860886507" MODIFIED="1538710449384" TEXT="Regel...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      den Klassennamen ohne das Namespace-Pr&#228;fix &quot;GTK&quot;, und alles lower case.
+    </p>
+    <p>
+      Im Zweifelsfall den GTK+ Inspector verwenden!
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1538696355832" ID="ID_1442093424" MODIFIED="1538696361515" TEXT="Probleme">
 <icon BUILTIN="messagebox_warning"/>
@@ -5364,8 +5444,7 @@
       CSS gen&#252;gt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -5391,8 +5470,7 @@
       die ein property auf den Wert '<font face="Monospaced"><b>inherit</b></font>' setzten
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5414,8 +5492,7 @@
       }
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5604,8 +5681,7 @@
       Allerdings habe ich an der Stelle immer noch GTK-Assertions
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -38298,6 +38374,11 @@
 </node>
 <node CREATED="1537575934664" ID="ID_849901633" MODIFIED="1537575940352" TEXT="Style">
 <font NAME="SansSerif" SIZE="13"/>
+<node CREATED="1538706283719" ID="ID_311272365" MODIFIED="1538706286399" TEXT="CSS">
+<node CREATED="1538706287605" ID="ID_811190435" LINK="https://developer.gnome.org/gtk3/stable/chap-css-properties.html" MODIFIED="1538706320128" TEXT="unterst&#xfc;tzte properties">
+<icon BUILTIN="info"/>
+</node>
+</node>
 <node CREATED="1537575947102" ID="ID_161652920" MODIFIED="1537575954753" TEXT="StyleContext">
 <node CREATED="1537575960276" ID="ID_376188043" MODIFIED="1537575972287" TEXT="enth&#xe4;lt mehrere StyleProvider"/>
 </node>
@@ -38324,8 +38405,7 @@
       context-&gt;add_class(&quot;ohMy&quot;);
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 <node CREATED="1537577929540" ID="ID_644837001" MODIFIED="1538609519542" TEXT="fr&#xfc;her ging das nur direkt in C">
 <icon BUILTIN="ksmiletris"/>
@@ -39161,8 +39241,7 @@
       stets <i>zwischen </i>den Zeichen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1538583655744" ID="ID_415292974" MODIFIED="1538583682595">
 <richcontent TYPE="NODE"><html>
@@ -39174,8 +39253,7 @@
       <b>Danke</b>! endlich bekommt das mal jemand korrekt hin
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>

From 12344ae9d8bd914a3eb87db3d0da4d309d3cae08 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 5 Oct 2018 15:59:21 +0200
Subject: [PATCH 132/178] NotificationDisplay: add an Error-State and implement
 signal to trigger on change

this is more or less gratitious functionality for now,
yet I consider it a proof-of-concept
---
 src/gui/widget/error-log-display.hpp | 34 ++++++++++++++++++++++++++++
 tests/gui/abstract-tangible-test.cpp |  4 ++--
 wiki/thinkPad.ichthyo.mm             | 32 +++++++++++++++++++++-----
 3 files changed, 62 insertions(+), 8 deletions(-)

diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 3a2fce578..d33f87aa8 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -129,6 +129,9 @@ namespace widget {
       vector<Entry> errorMarks_;
       TextWidget    textLog_;
       
+      sigc::signal<void, bool> errorChangedSignal_;
+      
+      
     public:
      ~ErrorLogDisplay() { };
       
@@ -158,12 +161,17 @@ namespace widget {
       void
       clearAll()
         {
+          bool shallNotify = not errorMarks_.empty();
+          
           errorMarks_.clear();
           size_t lineCnt = textLog_.get_buffer()->get_line_count();
           string placeholder;
           if (lineCnt > 0)
             placeholder = _Fmt{_("───════ %d preceding lines removed ════───\n")} % lineCnt;
           textLog_.get_buffer()->set_text (placeholder);  // discard existing content
+          
+          if (shallNotify)
+            errorChangedSignal_.emit (true);
         }
       
       
@@ -192,10 +200,15 @@ namespace widget {
       void
       addError (string text)
         {
+          bool shallNotify = errorMarks_.empty();
+          
           errorMarks_.emplace_back(
               addEntry ("ERROR: "+text, TAG_ERROR));
           if (not expand.isExpanded())
             expand (true);
+          
+          if (shallNotify)
+            errorChangedSignal_.emit (true);
         }
       
       /**
@@ -240,6 +253,8 @@ namespace widget {
       void
       turnError_into_InfoMsg()
         {
+          bool shallNotify = not errorMarks_.empty();
+          
           auto buff = textLog_.get_buffer();
           for (Entry& entry : errorMarks_)
             {
@@ -250,6 +265,9 @@ namespace widget {
               buff->apply_tag_by_name (uString{TAG_WARN}, begin,end);
             }
           errorMarks_.clear();
+          
+          if (shallNotify)
+            errorChangedSignal_.emit (true);
         }
       
       
@@ -264,6 +282,22 @@ namespace widget {
         }
       
       
+      /* ======= Error-State ======= */
+      
+      bool
+      isError()  const
+        {
+          return not errorMarks_.empty();
+        }
+      
+      /** signal fired when error state changes */
+      sigc::signal<void,bool>
+      signalErrorChanged()
+        {
+          return errorChangedSignal_;
+        }
+      
+      
       
     private:/* ===== Internals ===== */
       
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 087c4b61e..9382b4c9d 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -180,8 +180,8 @@ namespace test {
           invokeCommand();
           markState();
           revealer();
-//          notify();
-//          mutate();
+          notify();
+          mutate();
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0341d5f1a..1285bcd45 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -2484,6 +2484,22 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538746635373" ID="ID_1501747643" MODIFIED="1538746770472" TEXT="Error-Flag (Zustand)">
+<linktarget COLOR="#87a5af" DESTINATION="ID_1501747643" ENDARROW="Default" ENDINCLINATION="54;212;" ID="Arrow_ID_512060720" SOURCE="ID_1074988560" STARTARROW="None" STARTINCLINATION="788;93;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538746644284" ID="ID_1672227402" MODIFIED="1538746653979" TEXT="wenn ein Error-Eintrag im Index steht">
+<icon BUILTIN="info"/>
+</node>
+<node COLOR="#338800" CREATED="1538746666721" ID="ID_9727272" MODIFIED="1538747828042" TEXT="Pr&#xe4;dikat zur Erkennung">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538746673144" ID="ID_1324190008" MODIFIED="1538747829912" TEXT="Signal welcehs bei Status-&#xc4;nderung triggert">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538746726849" ID="ID_1790025982" MODIFIED="1538747833704" TEXT="Buttons im InfoboxPanel steuern (Proof-of-Concept)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1538263469670" TEXT="Bang! -Button">
 <icon BUILTIN="button_ok"/>
@@ -2569,8 +2585,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1538263469671" TEXT="Empfangs-Logik im NotificationHub (Controller)">
 <icon BUILTIN="full-3"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1538263469671" TEXT="Einrichtung">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1538746815645" TEXT="Einrichtung">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534336479160" ID="ID_203145360" MODIFIED="1538263469671" TEXT="Link zum Widget herstellen">
 <arrowlink COLOR="#a66b86" DESTINATION="ID_1326202399" ENDARROW="Default" ENDINCLINATION="279;-1333;" ID="Arrow_ID_664593340" STARTARROW="None" STARTINCLINATION="-1296;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -2865,13 +2881,14 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689138950" ID="ID_580572298" MODIFIED="1538263469671" TEXT="status-Flag">
-<icon BUILTIN="flag-yellow"/>
+<node CREATED="1533689138950" ID="ID_580572298" MODIFIED="1538746809685" TEXT="status-Flag">
+<icon BUILTIN="button_cancel"/>
 <node CREATED="1534722574441" ID="ID_558411855" MODIFIED="1538263469671" TEXT="delegiert an Widget">
 <arrowlink COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" STARTARROW="None" STARTINCLINATION="109;16;"/>
 <icon BUILTIN="stop-sign"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722791268" ID="ID_1074988560" MODIFIED="1538263469672" TEXT="Error-State">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534722791268" ID="ID_1074988560" MODIFIED="1538747845155" TEXT="Error-State">
+<arrowlink COLOR="#87a5af" DESTINATION="ID_1501747643" ENDARROW="Default" ENDINCLINATION="54;212;" ID="Arrow_ID_512060720" STARTARROW="None" STARTINCLINATION="788;93;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1538263469672" TEXT="sichtbar" VSHIFT="-18">
 <icon BUILTIN="flag-yellow"/>
@@ -3793,6 +3810,9 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1538263469675" TEXT="Belegen der View">
 <icon BUILTIN="flag-yellow"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538747863296" ID="ID_1171544173" MODIFIED="1538747871991" TEXT="Reaktion auf Error-state">
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1538263469675" TEXT="Verbinden mit bestehendem InfoboxPanel">
 <icon BUILTIN="flag-yellow"/>
 </node>

From e8931bf4bfd0be05b205ef81a6635d1659151ccd Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 5 Oct 2018 18:26:26 +0200
Subject: [PATCH 133/178] NotificationDisplay: react on changes of the error
 state

this turned out to be more tricky than expected.
When we initially configure the UI and invoke this->show_all(),
seemingly some draw-callbacks will be scheduled into the event loop.
Just set_visible(false) on the relevant buttons directly after that call
will have no effect (since the widget is still hidden at that point anyway,
it is not yet mapped and realised).

Thus we need to schedule a callback with the Glib::signal_idle(),
so our state detection runs after the initial mapping of the UI


NOTE: there is a minor itch, which I don't address right now:
when adding the error state and thus revealing the additional buttons,
the error log grabs some additional horizontal space, even while there
would be ample space for the additional buttons within the button bar.
When the error state is cleared and the buttons thus hidden again,
the additional horizontal space is dropped and the error log gets
narrower. Probably we'd need some special GTK call to re-allocate
the required space properly
---
 src/gui/panel/infobox-panel.cpp      |  56 +++++++++-----
 src/gui/panel/infobox-panel.hpp      |   4 +-
 src/gui/widget/error-log-display.hpp |   8 +-
 wiki/thinkPad.ichthyo.mm             | 107 +++++++++++++++------------
 4 files changed, 102 insertions(+), 73 deletions(-)

diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 3d9668ace..8e4aa66dd 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -28,10 +28,7 @@
 #include "gui/gtk-base.hpp"
 #include "gui/panel/infobox-panel.hpp"
 #include "gui/widget/error-log-display.hpp"
-#include "lib/format-string.hpp"
 
-using util::_Fmt;
-using Glib::ustring;
 
 namespace gui  {
 namespace panel{
@@ -43,8 +40,8 @@ namespace panel{
     : Panel(panelManager, dockItem, getTitle(), getStockID())
     , twoParts_{Gtk::ORIENTATION_VERTICAL}
     , buttons_{}
-    , frame_{"UI Integration Experiments"}
-    , logExpander_{"Error Log"}
+    , frame_{_("System Information")}
+    , logExpander_{_("Error Log")}
     , theLog_{}
     {
       twoParts_.pack_start(frame_);
@@ -52,20 +49,41 @@ namespace panel{
       
       buttons_.set_layout (Gtk::BUTTONBOX_START);
       
-      // buttons to trigger experiments
-      button_1_.set_label ("_bang");
-      button_1_.set_use_underline();
-      button_1_.set_tooltip_markup ("<b>Experiment 1</b>:\ntrigger Proc-GUI roundtrip");
-      button_1_.signal_clicked().connect(
-                  mem_fun(*this, &InfoBoxPanel::experiment_1));
-      buttons_.add (button_1_);
+      // buttons to control the error log
+      buttonClear_.set_label (_("_clear Log"));
+      buttonClear_.set_use_underline();
+      buttonClear_.set_tooltip_markup (_("Discard all contents of the error log."));
+      buttonClear_.signal_clicked().connect(
+                    [this](){ if (theLog_) theLog_->clearAll(); });
+      buttonClearErr_.set_label (_("_Error OK"));
+      buttonClearErr_.set_use_underline();
+      buttonClearErr_.set_tooltip_markup (_("Clear the error state and turn errors in to information entries."));
+      buttonClearErr_.signal_clicked().connect(
+                    [this](){ if (theLog_) theLog_->turnError_into_InfoMsg(); });
+      buttonClearInfo_.set_label (_("drop _Info"));
+      buttonClearInfo_.set_use_underline();
+      buttonClearInfo_.set_tooltip_markup (_("Discard all mere info message, retain error entries only."));
+      buttonClearInfo_.signal_clicked().connect(
+                    [this](){ if (theLog_) theLog_->clearInfoMsg(); });
+      
+      buttons_.add (buttonClear_);
+      buttons_.add (buttonClearErr_);
+      buttons_.add (buttonClearInfo_);
       //(End)buttons...
       
       // show initial configuration....
       this->add (twoParts_);
       this->show_all();
+
+      // schedule state update to hide the error related buttons
+      // after the UI is actually mapped to screen.
+      Glib::signal_idle()
+        .connect_once ( sigc::bind<bool>(
+                        sigc::mem_fun(*this, &InfoBoxPanel::reflect_LogErrorState), false
+                      ));
     }
   
+  
   const char*
   InfoBoxPanel::getTitle()
   {
@@ -104,20 +122,20 @@ namespace panel{
         frame_.set_border_width (5);
         frame_.add (logExpander_);
         frame_.show_all();
+        
+        theLog_->signalErrorChanged().connect(
+                    mem_fun(*this, &InfoBoxPanel::reflect_LogErrorState));
       }
     return *theLog_;
   }
   
   
   void
-  InfoBoxPanel::experiment_1()
+  InfoBoxPanel::reflect_LogErrorState (bool isError)
   {
-    frame_.set_label("Experiment 1... BANG");
-    
-    static uint bangNo{0};
-    static _Fmt msgTemplate{"Bang #%d\n"};
-    
-    getLog().addError (msgTemplate % ++bangNo);
+    buttonClearErr_.set_visible (isError);
+    buttonClearInfo_.set_visible (isError);
+    INFO (gui, "Error = %d", isError);
   }
   
   
diff --git a/src/gui/panel/infobox-panel.hpp b/src/gui/panel/infobox-panel.hpp
index e000252a1..b7e0907c5 100644
--- a/src/gui/panel/infobox-panel.hpp
+++ b/src/gui/panel/infobox-panel.hpp
@@ -66,13 +66,13 @@ namespace panel{
     private:
       Gtk::Box twoParts_;
       Gtk::ButtonBox buttons_;
-      Gtk::Button button_1_;
+      Gtk::Button buttonClear_, buttonClearInfo_, buttonClearErr_;
       Gtk::Frame frame_;
       Gtk::Expander logExpander_;
       
       std::unique_ptr<widget::ErrorLogDisplay> theLog_;
       
-      void experiment_1();
+      void reflect_LogErrorState (bool);
     };
   
   
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index d33f87aa8..358c9e1ea 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -66,6 +66,7 @@
 #include "include/gui-notification-facade.h"
 #include "lib/format-string.hpp"
 #include "lib/symbol.hpp"
+#include "lib/util.hpp"
 
 #include <utility>
 #include <vector>
@@ -75,6 +76,7 @@
 namespace gui  {
 namespace widget {
   
+  using util::max;
   using util::_Fmt;
   using lib::Literal;
   using std::make_pair;
@@ -164,14 +166,14 @@ namespace widget {
           bool shallNotify = not errorMarks_.empty();
           
           errorMarks_.clear();
-          size_t lineCnt = textLog_.get_buffer()->get_line_count();
+          size_t lineCnt = max (0, textLog_.get_buffer()->get_line_count() - 1);
           string placeholder;
           if (lineCnt > 0)
             placeholder = _Fmt{_("───════ %d preceding lines removed ════───\n")} % lineCnt;
           textLog_.get_buffer()->set_text (placeholder);  // discard existing content
           
           if (shallNotify)
-            errorChangedSignal_.emit (true);
+            errorChangedSignal_.emit (false);
         }
       
       
@@ -267,7 +269,7 @@ namespace widget {
           errorMarks_.clear();
           
           if (shallNotify)
-            errorChangedSignal_.emit (true);
+            errorChangedSignal_.emit (false);
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 1285bcd45..723417fae 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1832,9 +1832,9 @@
 <node CREATED="1538266165305" ID="ID_318361090" MODIFIED="1538266174884" TEXT="Controller: in Protokoll integriert"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1538263469667" TEXT="Operationen">
-<icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1534725109137" ID="ID_694776463" MODIFIED="1538263469667" TEXT="expand">
+<node COLOR="#338800" CREATED="1534725200588" ID="ID_871562482" MODIFIED="1538756139238" TEXT="Operationen">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534725109137" FOLDED="true" ID="ID_694776463" MODIFIED="1538756305396" TEXT="expand">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534725397553" ID="ID_1072347956" MODIFIED="1538263469667" TEXT="collapsed-Repr&#xe4;sentation schaffen">
 <icon BUILTIN="button_ok"/>
@@ -2070,8 +2070,8 @@
 <node COLOR="#338800" CREATED="1534725131214" ID="ID_1479834475" MODIFIED="1538263469668" TEXT="addMsg">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534725152139" ID="ID_887758432" MODIFIED="1538263469668" TEXT="addError">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1534725152139" FOLDED="true" ID="ID_887758432" MODIFIED="1538756202003" TEXT="addError">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534725422454" ID="ID_1459967459" MODIFIED="1538587727278" TEXT="spezieller Markup">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1459967459" ENDARROW="Default" ENDINCLINATION="-73;-253;" ID="Arrow_ID_424075973" SOURCE="ID_580465154" STARTARROW="None" STARTINCLINATION="225;0;"/>
 <icon BUILTIN="button_ok"/>
@@ -2109,21 +2109,6 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1538589740205" TEXT="Style-Manager vorsehen">
-<arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
-<linktarget COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" SOURCE="ID_1053927695" STARTARROW="None" STARTINCLINATION="-17;39;"/>
-<linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
-<icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538588393995" HGAP="214" ID="ID_828368967" MODIFIED="1538589740205" TEXT="#1168 : find a way to manage style of custom extended UI elements" VSHIFT="19">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node COLOR="#435e98" CREATED="1538588393995" FOLDED="true" HGAP="212" ID="ID_47427991" MODIFIED="1538589740205" TEXT="geeignetes Aufrufmuster schon mal angelegt" VSHIFT="-1">
-<icon BUILTIN="button_ok"/>
-<node CREATED="1538588510003" ID="ID_217668977" MODIFIED="1538588519598" TEXT="anscheinend geht hier nix per CSS"/>
-<node CREATED="1538588520377" ID="ID_178600292" MODIFIED="1538588531044" TEXT="daher: Tags per Name einf&#xfc;gen"/>
-<node CREATED="1538588531824" ID="ID_1287551637" MODIFIED="1538588544522" TEXT="Tags zentral populieren"/>
-</node>
-</node>
 </node>
 <node COLOR="#338800" CREATED="1537571928143" ID="ID_221069673" MODIFIED="1538263469669" TEXT="Tag f&#xfc;r Warnung">
 <icon BUILTIN="button_ok"/>
@@ -2207,7 +2192,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1537537333987" ID="ID_667263409" MODIFIED="1538263469669" TEXT="&#xdc;bersicht">
+<node CREATED="1537537333987" ID="ID_667263409" MODIFIED="1538756166525" TEXT="&#xdc;bersicht">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537537339011" ID="ID_1759202815" MODIFIED="1538263469669" TEXT="L&#xf6;sung">
 <icon BUILTIN="help"/>
 <node CREATED="1537537345410" ID="ID_1560200040" MODIFIED="1538263469669" TEXT="Toolbar verwenden?">
@@ -2230,26 +2216,30 @@
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571240500" ID="ID_1601115005" MODIFIED="1538263469669" TEXT="nur &gt;&gt; (n&#xe4;chster Fehler)">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537571240500" FOLDED="true" ID="ID_1601115005" MODIFIED="1538756163375" TEXT="nur &gt;&gt; (n&#xe4;chster Fehler)">
+<icon BUILTIN="hourglass"/>
 <node CREATED="1537571669683" ID="ID_196982892" MODIFIED="1538263469669" TEXT="wenn es Fehler gibt"/>
 <node CREATED="1537571681249" ID="ID_1273769655" MODIFIED="1538263469669" TEXT="wenn es mehr Zeilen gibt"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538756156811" ID="ID_27239439" MODIFIED="1538756161793" TEXT="YAGNI">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572133580" ID="ID_671753441" MODIFIED="1538263469669" TEXT="Button: clear Errors">
-<icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537572142139" ID="ID_1644572130" MODIFIED="1538263469669" TEXT="Button: clear all">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537572133580" ID="ID_671753441" MODIFIED="1538756131546" TEXT="Button: clear Errors">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1537572142139" ID="ID_1644572130" MODIFIED="1538756133431" TEXT="Button: clear all">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1538263469669" TEXT="addWarning">
+<node COLOR="#338800" CREATED="1537531676045" ID="ID_548104404" MODIFIED="1538756214741" TEXT="addWarning">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537531682564" ID="ID_1510582702" MODIFIED="1538263469669" TEXT="nur speziell ausgezeichnete Meldung">
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534725142756" ID="ID_343395831" MODIFIED="1538586610313" TEXT="clearInfoMsg">
+<node COLOR="#338800" CREATED="1534725142756" FOLDED="true" ID="ID_343395831" MODIFIED="1538756206590" TEXT="clearInfoMsg">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1538581145248" ID="ID_643768128" MODIFIED="1538581206025" TEXT="neuen TextBuffer anlegen">
 <icon BUILTIN="button_ok"/>
@@ -2264,7 +2254,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534725160618" ID="ID_1981616896" MODIFIED="1538587717273" TEXT="turnError_into_InfoMsg">
+<node COLOR="#338800" CREATED="1534725160618" FOLDED="true" ID="ID_1981616896" MODIFIED="1538756208941" TEXT="turnError_into_InfoMsg">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534725575098" ID="ID_383201596" MODIFIED="1538587760128" TEXT="Markup reduzieren">
 <arrowlink DESTINATION="ID_1806243350" ENDARROW="Default" ENDINCLINATION="294;-15;" ID="Arrow_ID_52974407" STARTARROW="None" STARTINCLINATION="294;-15;"/>
@@ -2274,7 +2264,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534725180543" ID="ID_1442607312" MODIFIED="1538707538947" TEXT="triggerFlash">
+<node COLOR="#338800" CREATED="1534725180543" FOLDED="true" ID="ID_1442607312" MODIFIED="1538756210290" TEXT="triggerFlash">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534725283337" ID="ID_1256364821" MODIFIED="1538707390908" TEXT="farbigen Rahmen">
 <icon BUILTIN="button_ok"/>
@@ -2417,7 +2407,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534722011622" ID="ID_232472679" MODIFIED="1538574689978" TEXT="revealYourself">
+<node COLOR="#338800" CREATED="1534722011622" FOLDED="true" ID="ID_232472679" MODIFIED="1538756217350" TEXT="revealYourself">
 <linktarget COLOR="#76a4ad" DESTINATION="ID_232472679" ENDARROW="Default" ENDINCLINATION="94;307;" ID="Arrow_ID_634173548" SOURCE="ID_898428560" STARTARROW="None" STARTINCLINATION="859;27;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1535726017256" ID="ID_899234988" MODIFIED="1538263469670" TEXT="default-Impl doReveal()">
@@ -2484,9 +2474,24 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538746635373" ID="ID_1501747643" MODIFIED="1538746770472" TEXT="Error-Flag (Zustand)">
-<linktarget COLOR="#87a5af" DESTINATION="ID_1501747643" ENDARROW="Default" ENDINCLINATION="54;212;" ID="Arrow_ID_512060720" SOURCE="ID_1074988560" STARTARROW="None" STARTINCLINATION="788;93;"/>
+<node COLOR="#338800" CREATED="1537661799354" ID="ID_758790930" MODIFIED="1538756230053" TEXT="Style-Manager vorsehen">
+<arrowlink COLOR="#8f81b2" DESTINATION="ID_407535546" ENDARROW="Default" ENDINCLINATION="3769;-2728;" ID="Arrow_ID_1203118148" STARTARROW="None" STARTINCLINATION="-1594;0;"/>
+<linktarget COLOR="#b3a9c1" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="96;-5;" ID="Arrow_ID_1283375190" SOURCE="ID_1053927695" STARTARROW="None" STARTINCLINATION="-17;39;"/>
+<linktarget COLOR="#877796" DESTINATION="ID_758790930" ENDARROW="Default" ENDINCLINATION="315;0;" ID="Arrow_ID_564282272" SOURCE="ID_951505172" STARTARROW="None" STARTINCLINATION="649;0;"/>
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538588393995" HGAP="214" ID="ID_828368967" MODIFIED="1538589740205" TEXT="#1168 : find a way to manage style of custom extended UI elements" VSHIFT="19">
 <icon BUILTIN="flag-yellow"/>
+</node>
+<node COLOR="#435e98" CREATED="1538588393995" FOLDED="true" HGAP="212" ID="ID_47427991" MODIFIED="1538589740205" TEXT="geeignetes Aufrufmuster schon mal angelegt" VSHIFT="-1">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538588510003" ID="ID_217668977" MODIFIED="1538588519598" TEXT="anscheinend geht hier nix per CSS"/>
+<node CREATED="1538588520377" ID="ID_178600292" MODIFIED="1538588531044" TEXT="daher: Tags per Name einf&#xfc;gen"/>
+<node CREATED="1538588531824" ID="ID_1287551637" MODIFIED="1538588544522" TEXT="Tags zentral populieren"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1538746635373" FOLDED="true" ID="ID_1501747643" MODIFIED="1538756241503" TEXT="Error-Flag (Zustand)">
+<linktarget COLOR="#87a5af" DESTINATION="ID_1501747643" ENDARROW="Default" ENDINCLINATION="54;212;" ID="Arrow_ID_512060720" SOURCE="ID_1074988560" STARTARROW="None" STARTINCLINATION="788;93;"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1538746644284" ID="ID_1672227402" MODIFIED="1538746653979" TEXT="wenn ein Error-Eintrag im Index steht">
 <icon BUILTIN="info"/>
 </node>
@@ -2496,13 +2501,16 @@
 <node COLOR="#338800" CREATED="1538746673144" ID="ID_1324190008" MODIFIED="1538747829912" TEXT="Signal welcehs bei Status-&#xc4;nderung triggert">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538746726849" ID="ID_1790025982" MODIFIED="1538747833704" TEXT="Buttons im InfoboxPanel steuern (Proof-of-Concept)">
-<icon BUILTIN="flag-yellow"/>
-</node>
-</node>
-</node>
-<node COLOR="#338800" CREATED="1522936265009" ID="ID_433355936" MODIFIED="1538263469670" TEXT="Bang! -Button">
+<node COLOR="#338800" CREATED="1538746726849" ID="ID_1790025982" MODIFIED="1538756124245" TEXT="Buttons im InfoboxPanel steuern (Proof-of-Concept)">
 <icon BUILTIN="button_ok"/>
+<node CREATED="1538751082832" ID="ID_783222361" MODIFIED="1538756010539" TEXT="mu&#xdf; initialen Zustand schedulen">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1538756013358" ID="ID_1905873400" MODIFIED="1538756056312" TEXT="denn show_all() stellt Aktionen in die Event-Queue">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -2583,7 +2591,7 @@
 <node COLOR="#435e98" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1538263469671" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1538263469671" TEXT="Empfangs-Logik im NotificationHub (Controller)">
+<node COLOR="#435e98" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1538756289018" TEXT="Empfangs-Logik im NotificationHub (Controller)">
 <icon BUILTIN="full-3"/>
 <node COLOR="#338800" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1538746815645" TEXT="Einrichtung">
 <icon BUILTIN="button_ok"/>
@@ -2836,7 +2844,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533689146501" ID="ID_1371087868" MODIFIED="1538587918512" TEXT="bei Bedarf anzeigen">
+<node COLOR="#338800" CREATED="1533689146501" FOLDED="true" ID="ID_1371087868" MODIFIED="1538756258879" TEXT="bei Bedarf anzeigen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534636343111" ID="ID_1922277957" MODIFIED="1538263469671" TEXT="ebenfalls explizit zu bauen">
 <icon BUILTIN="button_ok"/>
@@ -2881,7 +2889,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1533689138950" ID="ID_580572298" MODIFIED="1538746809685" TEXT="status-Flag">
+<node CREATED="1533689138950" FOLDED="true" ID="ID_580572298" MODIFIED="1538756271677" TEXT="status-Flag">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1534722574441" ID="ID_558411855" MODIFIED="1538263469671" TEXT="delegiert an Widget">
 <arrowlink COLOR="#7691b1" DESTINATION="ID_1390682663" ENDARROW="Default" ENDINCLINATION="-71;33;" ID="Arrow_ID_1469414604" STARTARROW="None" STARTINCLINATION="109;16;"/>
@@ -2890,13 +2898,14 @@
 <arrowlink COLOR="#87a5af" DESTINATION="ID_1501747643" ENDARROW="Default" ENDINCLINATION="54;212;" ID="Arrow_ID_512060720" STARTARROW="None" STARTINCLINATION="788;93;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1538263469672" TEXT="sichtbar" VSHIFT="-18">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534722566362" HGAP="29" ID="ID_202753412" MODIFIED="1538756262259" TEXT="sichtbar" VSHIFT="-18">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1538756263572" ID="ID_1046625699" MODIFIED="1538756268712" TEXT="durch Button-Aktivierung"/>
 </node>
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1534119979555" ID="ID_1159164748" MODIFIED="1538708532160" TEXT="Controller-Interface">
+<node COLOR="#338800" CREATED="1534119979555" FOLDED="true" ID="ID_1159164748" MODIFIED="1538756279718" TEXT="Controller-Interface">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534120150458" ID="ID_1083026482" MODIFIED="1538263469672" TEXT="Expander">
 <icon BUILTIN="button_ok"/>
@@ -3006,9 +3015,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1538263469673" TEXT="ErrorLogView vorl&#xe4;ufig...">
+<node COLOR="#338800" CREATED="1534334029619" ID="ID_1981930639" MODIFIED="1538756282446" TEXT="ErrorLogView vorl&#xe4;ufig...">
 <arrowlink COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" STARTARROW="None" STARTINCLINATION="397;197;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node COLOR="#435e98" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1538708568344" TEXT="in NotificationService integrieren">
@@ -19484,7 +19493,7 @@
 <node CREATED="1533252172584" ID="ID_230437417" MODIFIED="1533252187890" TEXT="setzt zwingend voraus, da&#xdf; die Event-Loop schon l&#xe4;uft"/>
 </node>
 </node>
-<node CREATED="1533221770859" FOLDED="true" ID="ID_1962039642" MODIFIED="1538589780400" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
+<node CREATED="1533221770859" FOLDED="true" ID="ID_1962039642" MODIFIED="1538751047556" TEXT="daf&#xfc;r einen dedizierten Service einbauen">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1533310637466" ID="ID_1772394299" MODIFIED="1533385333187" TEXT="wo?">
 <font NAME="SansSerif" SIZE="12"/>

From cd557f50ec411c73c1c6ac56dfd6deef5435cdf7 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 6 Oct 2018 17:42:22 +0200
Subject: [PATCH 134/178] DemoGuiRoundtrip: successfully completed (closes
 #1999)

---
 doc/technical/gui/GuiConnect.txt              |  80 ++++
 .../gui/{guiTheme.txt => GuiTheme.txt}        |  13 +-
 src/gui/ctrl/notification-hub.hpp             |   9 +-
 src/gui/demo-gui-roundtrip.cpp                | 112 ------
 src/gui/dialog/test-control.hpp               |   2 +-
 src/gui/interact/interaction-director.cpp     |   5 -
 src/gui/model/flash-deco.hpp                  |   7 +-
 src/gui/panel/infobox-panel.cpp               |   9 +-
 src/gui/panel/infobox-panel.hpp               |   5 +-
 src/gui/style-scheme.cpp                      |   5 +-
 src/gui/widget/error-log-display.hpp          |  30 +-
 src/proc/cmd/meta-cmd.cpp                     |  14 +-
 wiki/thinkPad.ichthyo.mm                      | 357 ++++++++++--------
 13 files changed, 338 insertions(+), 310 deletions(-)
 create mode 100644 doc/technical/gui/GuiConnect.txt
 rename doc/technical/gui/{guiTheme.txt => GuiTheme.txt} (84%)
 delete mode 100644 src/gui/demo-gui-roundtrip.cpp

diff --git a/doc/technical/gui/GuiConnect.txt b/doc/technical/gui/GuiConnect.txt
new file mode 100644
index 000000000..84458a8fc
--- /dev/null
+++ b/doc/technical/gui/GuiConnect.txt
@@ -0,0 +1,80 @@
+GUI Connection
+==============
+
+The Lumiera application is built from several segregated software layers, and the user interface, the GUI-Layer is
+optional and loaded as a plug-in. This deliberate design decision has far reaching consequences in all parts of the
+application: Anything of relevance for editing or rendering need to be _represented explicitly_ within a model, distinct
+and abstracted from the presentation for the user. For example, many media handling applications let you ``snap'' some
+entity to a ``grid'', which happens conveniently during a given user interaction, just resulting in a new position for
+the element at hand. In Lumiera, we can not follow this obvious and pragmatic approach -- rather, both the time grid
+and the fact an object as been attached and aligned to such a grid need to be represented in the session model proper,
+resulting in a `Placement`. More specifically, we can not derive behaviour of such an object from circumstantial
+state data present in the UI. Rather, we need to compute the new position based on rules within the session.
+And then we need to _communicate_ the result back into the UI -- if and when an UI is present to reflect that change.
+
+So instead of having a _»Controller«_ mediate the interplay of a _»Model«_ and the _»View«_ presentation, we end up
+with a complete _communication cycle,_ where messages are sent in both directions, and _sent asynchronously._
+
+Principles of UI / Core interaction
+-----------------------------------
+By all means, we avoid a common shared data structure as foundation for interaction. Such a _data centric_ approach
+may lean towards two extremes, both of which are problematic. A _naively written application_ starts with building
+the user interface and hinges any further internal structures directly below. For a tiny application, which is
+basically ``just some interface controls'', such an approach might be adequate -- yet maintaining the ``code behind''
+the control surface quickly becomes a nightmare. We may avoid those immediate problems by settling down on a strictly
+codified central _core data model._ And while this shift towards the other extreme of a data centric architecture
+indeed resolves the immediately pressing maintenance problems, this settlement comes with an substantial price tag.
+Since interface and core functionality are now torn apart, the code conducting even the simplest interaction is
+scattered over various parts of the system, and thus everything need to be very well defined and documented.
+Such a system becomes rigid as soon as it is built. And additionally it tends to suffer from structure duplication
+and multiplication, since cross interactions involving several parts of the core and the surface tend to be had
+to express: Interaction state need to be materialised into the core data, to allow other, distinct parts of the
+interface to collaborate.
+
+We may escape from that dichotomy when we cease to _rely on data as the fundamental substrate of our system._
+To collaborate, both parts still need to share a structure, yet it suffices for this structure to be a _common
+understanding:_ both the UI-Layer and the Proc-Layer need to share a common understanding how the parts of a editing
+session can be arranged. Yet they do not need to share a _common data representation_ of the session.
+
+The consequence is that both sides, ``the core'' and ``the UI'' remain autonomous within their realm. For some concerns, namely _the core concerns,_ that is editing, arranging, processing, the core is in charge and has absolute authority.
+On the other hand, when it comes to user interaction, especially the _mechanics and materiality of interaction,_ the UI
+is the authority; it is free to decide about what is exposed and in which way. Yet the common structural understanding
+is never fully, totally cast in concrete data structures.
+
+Rather, the core sends *diff messages* up to the UI, indicating how it sees this virtual structure to be changing.
+The UI reflects these changes into _its own understanding and representation,_ which is here a structure of display
+widgets. When the user interacts with these structures of the presentation layer, *action command messages* are generated,
+using the element-IDs to designate the arguments of the intended operation. Acting on these messages again causes reaction and change in the core, which is reflected back in the form of further diff messages.
+
+Anatomy of the Proc/GUI interface
+---------------------------------
+- the `GuiFacade` is used as a general lifecycle facade to start up the GUI and to set up the »Layer Separation
+  Interfaces«. The `GuiFacade` is implemented by a class _in Proc-Layer_ and loads the Lumiera GTK-UI as a plug-in.
+- once the UI is running, it exposes the `GuiNotificationFacade`, to allow pushing state and structure updates up into
+  the user interface.
+- in the opposite direction, for initiating actions from the UI, the Session Subsystem opens the `SessionCommandFacade`,
+  which can be considered __ ``the'' public session interface.__
+
+Both these primary interfaces operate *message based.* As immediate consequence, these interfaces are comparatively
+narrow, and interactions can easily be serialised, enqueued and dispatched. On the Proc-Layer side, the `ProcDispatcher`
+coordinates command execution and the _Builder run_ to derive the consequences of those session command invocations.
+And within the UI, the GTK-Event loop runs likewise single threaded, and the Notification facade automatically
+dispatches any invocation into the UI thread.
+
+Within the UI-Layer, we do not rely on a central ``shadow model'', rather, the backbone of the UI is a communication
+structure, the *UI-Bus*. Data within the GUI is kept very local, close to the presentation widgets. In fact, we
+identify a selection of _really important_ UI elements, which we call ``the tangible elements'' (`gui::model::Tangible`).
+Each of those primary elements within the UI _is connected to the UI-Bus,_ and can be addressed by its ID, and it
+happens to correspond and reflect an entity within the session model, there denoted by the same ID. The core can
+thus send a message towards the corresponding tangible UI element, without any knowledge as to how and where this
+element is actually attached within the widget tree of the user interface. Even diff messages are dispatched over
+the UI-Bus; it is up to the receiving tangible element to decide about the meaning of such a diff message, and
+how to reshape its internal widget state to reflect that change.
+
+When it comes to the more elaborate parts of the model and the UI -- especially for the timeline -- those tangible
+elements need not be widgets by themselves. Rather, they can be local presentation controllers, often also referred
+to as *Presenter*. These manage and control a selection of slave widgets to form the visual presentation of the
+corresponding session entity. For example, a `ClipPresenter` injects one or a conglomerate of several widgets
+into the track canvas, depending on the current zoom level and the display state of the clip (collapsed, expanded,
+abridged display).
+
diff --git a/doc/technical/gui/guiTheme.txt b/doc/technical/gui/GuiTheme.txt
similarity index 84%
rename from doc/technical/gui/guiTheme.txt
rename to doc/technical/gui/GuiTheme.txt
index f28327e57..2fa13d845 100644
--- a/doc/technical/gui/guiTheme.txt
+++ b/doc/technical/gui/GuiTheme.txt
@@ -17,7 +17,9 @@ introduce additional engine specific styles and settings.
 
 GTK-3 supports the powerful 'cascading' and 'contextual selectors' from CSS. Thus the nesting of elements
 in the GUI forms the base for creating styling rules. Hereby, widget class names translate into ``tag'' names
-in the CSS selectors. Widgets may also expose CSS classes for styling -- the standard widgets define a generic set
+in the CSS selectors.footnote:[The ``tag'' name is the widget's class name without the `Gtk::` prefix, and transformed
+into all lower caps, single word, no underscores. E.g. `Gtk::TextView` -> `textview`]
+Widgets may also expose CSS classes for styling -- the standard widgets define a generic set
 of https://developer.gnome.org/gtk3/3.4/GtkStyleContext.html#gtkstylecontext-classes[predefined CSS style classes],
 which can be used to establish the foundation for theming. Obviously it is preferable to keep styling rules as
 concise, generic and systematic as possible; yet we may still refer to individual gui elements by name (`#ID`) though.
@@ -53,6 +55,15 @@ A good recommendation is really to ``probe'' settings by changing them temporari
 (e.g. `background-color: red`). It is just too easy to learn wrong techniques based on false conclusions.
 
 
+the GTK+ inspector
+~~~~~~~~~~~~~~~~~~
+An essential tool when working with styles and Gtk widgets in general is the
+https://wiki.gnome.org/Projects/GTK%2B/Inspector[GTK+ inspector], which is part of the standard GTK distribution.
+It allows to inspect all GTK objects with their properties, and to see the actual tree of CSS nodes and the
+corresponding selectors. You can even add a style class or state flag (like ``hover'') dynamically, and you
+may add style rules and verify the effect on the application immediately. To use this ispector, launch the
+application like `GTK_DEBUG=interactive target/lumiera`
+
 
 binary themes
 ~~~~~~~~~~~~~
diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index ec027d41f..225bdc6da 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -41,12 +41,11 @@
  ** The actual widget for information display is prepared, but it is actually allocated when
  ** the need for information display arises. Which means, the user may close this display
  ** widget, thereby discarding its current information content -- but when the next notification
- ** needs to be shown, the controller will ensure to allocate an appropriate widget again. Moreover,
- ** the widget can be _expanded_ or _collapsed_, without affecting its content.
+ ** needs to be shown, the controller will ensure to allocate an appropriate widget again.
+ ** Moreover, the widget can be _expanded_ or _collapsed_, without affecting its content.
  ** - information messages are just added to the buffer without much ado. No attempt is made
  **   to reveal or expand the widget (but if necessary, a new widget is allocated)
- ** - error messages also set an error marker state (*TODO* reflect this in the presentation),
- **   and they cause the display widget to be expanded
+ ** - error messages also set an error marker state, and cause expansion of the display widget.
  ** - the error state can be _cleared_, which also demotes all error messages to mere information.
  ** - information content can also be _cleared_, which removes all mere information messages,
  **   while retaining the error entries.
@@ -91,7 +90,7 @@ namespace ctrl {
     {
       
       
-      /** content population and manipulation via UI-Bus */
+      /** population and manipulation of persistent content via UI-Bus */
       void
       buildMutator (lib::diff::TreeMutator::Handle buffer)  override
         {
diff --git a/src/gui/demo-gui-roundtrip.cpp b/src/gui/demo-gui-roundtrip.cpp
deleted file mode 100644
index f22834533..000000000
--- a/src/gui/demo-gui-roundtrip.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
-  DemoGuiRoundtrip  -  placeholder to further progress of the GUI-Session connection
-
-  Copyright (C)         Lumiera.org
-    2017,               Hermann Vosseler <Ichthyostega@web.de>
-
-  This program is free software; you can redistribute it and/or
-  modify it under the terms of the GNU General Public License as
-  published by the Free Software Foundation; either version 2 of
-  the License, or (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-* *****************************************************/
-
-
-/** @file demo-gui-roundtrip.cpp
- ** Dummy and scaffolding to help development of the UI - Session connection.
- ** The Goal is to establish a full messaging round-trip between UI and Proc-Layer
- ** - a menu entry
- ** - which issues a Proc-Command
- ** - which in turn accesses the Notification-facade
- ** - and sends a "mark" message towards some UI demo widget
- ** - which in turn displays the mark text
- ** 
- ** @todo WIP as of 8/2017          ////////////////////////////////////////////////////////////////////////TICKET #1099
- ** 
- ** @see CallQueue_test
- ** @see notification-service.hpp
- ** 
- */
-
-#include "gui/gtk-base.hpp"
-
-#include "lib/error.hpp"
-#include "lib/depend.hpp"
-#include "gui/ui-bus.hpp"
-#include "gui/ctrl/ui-manager.hpp"
-#include "lib/nocopy.hpp"
-
-#include <string>
-
-
-
-//using lumiera::error::LUMIERA_ERROR_STATE;
-
-using std::string;
-
-
-namespace gui {
-  
-  namespace { // implementation details
-  
-//using util::isnil;
-    using std::string;
-    
-  } // (End) impl details
-  
-  
-  
-  
-  
-  /**
-   * Quick-n-dirty hack to establish a prototypic connection between Application Core and UI...
-   * 
-   * @todo be commendable
-   * @todo don't misbehave
-   * 
-   * @see SomeSystem
-   * @see CallQueue_test
-   */
-  class DemoGuiRoundtrip
-    : util::NonCopyable
-    {
-      string nothing_;
-
-      DemoGuiRoundtrip();
-     ~DemoGuiRoundtrip();
-
-      friend class lib::DependencyFactory<DemoGuiRoundtrip>;
-
-    public:
-      /** access point to set up the scaffolding.
-       * @internal this is a development helper and will be remoulded all the time.
-       */
-      static lib::Depend<DemoGuiRoundtrip> instance;
-      
-      
-      /* == X interface for == */
-
-      /* == Adapter interface for == */
-
-#if false /////////////////////////////////////////////////////////////////////////////////////////////////////////////UNIMPLEMENTED :: TICKET #1099
-      void setSolution (string const& solution = "")
-        {
-          UNIMPLEMENTED ("tbw");
-          if (isDeaf())
-          this->transmogrify (solution);
-        }
-#endif    /////////////////////////////////////////////////////////////////////////////////////////////////////////////UNIMPLEMENTED :: TICKET #1099
-    };
-  
-  
-  
-} // namespace gui
diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 4a2796407..8d8b04e77 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -29,7 +29,7 @@
  ** helper routines to be hooked up easily within the UI. Actions launched from here
  ** perform within the same environment as regular user interactions.
  ** 
- ** @todo as of 9/2018, this is a first rough draft, relevant for #1099          ////////////////////////////TICKET #1074 gradually augment the self-diagnostics controls in the UI
+ ** @todo as of 9/2018, this is a first rough draft, relevant for #1099          ////////////////////////////TICKET #1140 gradually augment the self-diagnostics controls in the UI
  ** @todo this header also features a design draft how to simplify building notebook widgets.
  **       Which could be polished and moved into a separate utility header eventually.
  */
diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index 3b63432e0..0c272b6e1 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -109,11 +109,6 @@ namespace interact {
   void
   InteractionDirector::populateContent_afterStart()
     {
-      ///////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1099 trigger creation of the UI notification display here
-      //// TODO : this clearly is a preliminary solution. Later it might be possible,
-      ////      : to create the notification display on demand. But right now (8/2018)
-      ////      : we need a GuiComponentView with predictable ID instructed to exist "somewhere"
-      ////
       invoke (cmd::test_meta_activateContentDiff);               ////////////////////////////////////////////TICKET #211 prefix test_ bypasses logging and immediately executes for now (2018)
     }
   
diff --git a/src/gui/model/flash-deco.hpp b/src/gui/model/flash-deco.hpp
index dbd5d290c..15889a76c 100644
--- a/src/gui/model/flash-deco.hpp
+++ b/src/gui/model/flash-deco.hpp
@@ -24,7 +24,7 @@
 /** @file flash-deco.hpp
  ** Decorator to add the ability to display a visual flash action to a GTK widget.
  ** The protocol for operating UI elements connected to the [UI-Bus](\ref ui-bus.hpp) includes
- ** a message to make the receiving widget flash for a short time, to mandate the users attention.
+ ** a message to make the receiving widget flash for a short time, to mandate the user's attention.
  ** The visual change itself is effected by adding a CSS class, while adding a timeout callback
  ** to revert to normal display after a short timespan. In itself, this modification sequence
  ** is entirely generic, and can thus be added by decorating the widget to affect; moreover,
@@ -44,13 +44,9 @@
 #include "gui/gtk-base.hpp"
 #include "gui/style-scheme.hpp"
 
-//#include <utility>
-
 
 namespace gui {
 namespace model {
-
-//  using std::move;
   
   
   /**
@@ -90,6 +86,5 @@ namespace model {
     };
   
   
-  
 }} // namespace gui::model
 #endif /*GUI_MODEL_FLASH_DECO_H*/
diff --git a/src/gui/panel/infobox-panel.cpp b/src/gui/panel/infobox-panel.cpp
index 8e4aa66dd..24f1bcd5c 100644
--- a/src/gui/panel/infobox-panel.cpp
+++ b/src/gui/panel/infobox-panel.cpp
@@ -79,8 +79,8 @@ namespace panel{
       // after the UI is actually mapped to screen.
       Glib::signal_idle()
         .connect_once ( sigc::bind<bool>(
-                        sigc::mem_fun(*this, &InfoBoxPanel::reflect_LogErrorState), false
-                      ));
+                        sigc::mem_fun (*this, &InfoBoxPanel::reflect_LogErrorState), false)
+                      );
     }
   
   
@@ -98,7 +98,7 @@ namespace panel{
   
   
   /** on demand allocate display of information / error log
-   * @note we assume it stays alive forever, once allocated
+   * @note we assume it stays alive until the panel itself is closed.
    * @remark the ErrorLogDisplay widget exposes a \ref Expander functor,
    *         which is wired here with the Gtk::Expander container holding the Log.
    *         This setup allows to trigger the expand/collapse functionality and
@@ -113,7 +113,7 @@ namespace panel{
         theLog_.reset (new ErrorLogDisplay{});
         logExpander_.set_expanded (false);
         logExpander_.add (*theLog_);
-        theLog_->expand = model::Expander{[&]()         { return logExpander_.get_expanded(); }
+        theLog_->expand = model::Expander{[&]() -> bool { return logExpander_.get_expanded(); }
                                          ,[&](bool yes) { logExpander_.set_expanded (yes); }
                                          };
         theLog_->reveal = model::Revealer{[&]()         { Panel::show(true);
@@ -135,7 +135,6 @@ namespace panel{
   {
     buttonClearErr_.set_visible (isError);
     buttonClearInfo_.set_visible (isError);
-    INFO (gui, "Error = %d", isError);
   }
   
   
diff --git a/src/gui/panel/infobox-panel.hpp b/src/gui/panel/infobox-panel.hpp
index b7e0907c5..4ef8c1b0f 100644
--- a/src/gui/panel/infobox-panel.hpp
+++ b/src/gui/panel/infobox-panel.hpp
@@ -26,7 +26,7 @@
  ** Such an »Info Box« typically exposes detail settings from some other component
  ** currently selected, and allows to access those in a non modal fashion.
  ** 
- ** @todo as of 8/2017 this is (ab)used as space for UI / Proc-Layer integration experiments
+ ** @todo as of 10/2017 this is used as space to host the information and error log
  */
 
 
@@ -53,7 +53,8 @@ namespace panel{
        * @param PanelManager The owner panel manager widget.
        * @param DockItem The GdlDockItem that will host this panel.
        * 
-       * @todo as of 8/2017 this is placeholder code for UI experiments...
+       * @todo just used as place for the error log as of 10/2017.
+       *       More to come...
        */
       InfoBoxPanel (workspace::PanelManager&, Gdl::DockItem&);
       
diff --git a/src/gui/style-scheme.cpp b/src/gui/style-scheme.cpp
index c0a9212eb..1dd8cf8c6 100644
--- a/src/gui/style-scheme.cpp
+++ b/src/gui/style-scheme.cpp
@@ -36,7 +36,10 @@ namespace gui {
   const Literal TAG_ERROR{"ERROR"};              ////////////////////////////////////////////////////////////TICKET #1168 : find a way to manage style of custom extended UI elements
   const Literal TAG_WARN{"WARN"};
   
-  cuString CSS_CLASS_FLASH{"indication_flash"};                      ///< CSS class added temporarily to make a widget "flash" in response to the corresponding UI-Bus message 
+  /** CSS class added temporarily to make a widget "flash"
+   *  in response to the corresponding UI-Bus message
+   * @see flash-deco.hpp */
+  cuString CSS_CLASS_FLASH{"indication_flash"};
   const uint STYLE_FLASH_DURATION_in_ms = 1100;
   
   
diff --git a/src/gui/widget/error-log-display.hpp b/src/gui/widget/error-log-display.hpp
index 358c9e1ea..9e75b0977 100644
--- a/src/gui/widget/error-log-display.hpp
+++ b/src/gui/widget/error-log-display.hpp
@@ -34,9 +34,9 @@
  ** to an ErrorLogDisplay found within the InfoBoxPanel, using it as holder for
  ** information and error messages pushed into the GUI. For that reason, it is
  ** important really _to destroy_ the ErrorLogDisplay, when it is taken out of
- ** service. Since ErrorLogDisplay inherits from `sigc::tangible`, it is
+ ** service. Since ErrorLogDisplay inherits from `sigc::trackable`, it is
  ** automatically detached from the WLink implementing this cross-attachment,
- ** when actually the dtor is called.
+ ** but only when _actually the dtor is called._
  ** @note this is a special convention; usually it is sufficient just to hide()
  **       a GTK widget, because it is then left alone by the event handling and
  **       automatically cleaned up at shutdown. Moreover, if you ` remove()` a
@@ -51,7 +51,7 @@
  **       used as receiver by the GuiNotificationService.
  ** @todo WIP-WIP and in 9/2018 this draft gradually shifts towards a prototype
  **       how to deal with custom configured widget behaviour, and how to integrate
- **       with our GUI framework                /////////////////////////////////////////////////////////////TICKET #1099 : build a prototype/dummy for UI <-> Proc integration  
+ **       with our GUI framework (#1099)
  ** 
  */
 
@@ -149,8 +149,8 @@ namespace widget {
           
           // the vertical scrollbar will always be necessary....
           set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_ALWAYS);
-          this->add (textLog_);
           textLog_.set_editable (false);
+          this->add (textLog_);
           
           populateStandardTextTags (textLog_.get_buffer()->get_tag_table());
         }
@@ -163,7 +163,7 @@ namespace widget {
       void
       clearAll()
         {
-          bool shallNotify = not errorMarks_.empty();
+          bool shallNotify = this->isError();
           
           errorMarks_.clear();
           size_t lineCnt = max (0, textLog_.get_buffer()->get_line_count() - 1);
@@ -202,10 +202,10 @@ namespace widget {
       void
       addError (string text)
         {
-          bool shallNotify = errorMarks_.empty();
+          bool shallNotify = not this->isError();
           
           errorMarks_.emplace_back(
-              addEntry ("ERROR: "+text, TAG_ERROR));
+            addEntry ("ERROR: "+text, TAG_ERROR));
           if (not expand.isExpanded())
             expand (true);
           
@@ -226,7 +226,7 @@ namespace widget {
           for (Entry& entry : errorMarks_)
             {
               newBuff->insert (newBuff->end(), "\n");
-              auto pos  = newBuff->end();
+              auto pos = newBuff->end();
               --pos;
               newMarks.emplace_back(
                 make_pair (
@@ -255,7 +255,7 @@ namespace widget {
       void
       turnError_into_InfoMsg()
         {
-          bool shallNotify = not errorMarks_.empty();
+          if (not isError()) return;
           
           auto buff = textLog_.get_buffer();
           for (Entry& entry : errorMarks_)
@@ -264,17 +264,15 @@ namespace widget {
               auto end = entry.second->get_iter();
               
               buff->remove_tag_by_name(uString{TAG_ERROR}, begin,end);
-              buff->apply_tag_by_name (uString{TAG_WARN}, begin,end);
+              buff->apply_tag_by_name (uString{TAG_WARN},  begin,end);
             }
           errorMarks_.clear();
-          
-          if (shallNotify)
-            errorChangedSignal_.emit (false);
+          errorChangedSignal_.emit (false);
         }
       
       
       /** temporarily change display style to prompt for attention;
-       *  set callback-timeout to return to normal state.
+       *  set callback-timeout for return to normal state.
        * @see \ref gui::CSS_CLASS_FLASH
        */
       void
@@ -308,7 +306,7 @@ namespace widget {
        * @remark an entry is content sans the following line break, which is appended automatically.
        *         We inject the content _between_ two marks, which will adjust when content is altered.
        * @remark According to the [API doc], `TextView::scroll_to(iter)` is not reliable; preferably
-       *         we should use a text mark and set that text mark to the [insert position][insert-mark].
+       *         we should use a text mark, which could e.g. be the [insert position][insert-mark].
        *         The handling of marks and tags is described in the [GTKmm tutorial].
        * @warning Each entry creates a new pair of marks. Not sure about the impact on performance...
        * 
@@ -324,7 +322,7 @@ namespace widget {
           auto pos  = buff->end();
           --pos;
           auto begin = buff->create_mark (pos, true);  // "left gravity" : stays to the left of inserted text
-          auto after = buff->create_mark (pos, false);//  "right gravity": sticks right behind the inserted text
+          auto after = buff->create_mark (pos, false); // "right gravity": sticks right behind the inserted text
           if (markupTagName)
             buff->insert_with_tag(pos, text, cuString{markupTagName});
           else
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 69f78dc93..5eeb7fcbd 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -39,10 +39,10 @@
 #include "proc/control/command-def.hpp"
 //#include "proc/mobject/session.hpp"
 #include "include/gui-notification-facade.h"
-#include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
+#include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1140 : include needed temporarily
 #include "lib/diff/gen-node.hpp"
 #include "lib/idi/entry-id.hpp"
-#include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
+#include "lib/format-string.hpp"               //////////////////////////////////////////////////////////////TICKET #1140 : include needed temporarily
 //#include "lib/symbol.hpp"
 #include "lib/util.hpp"
 
@@ -57,7 +57,7 @@ using gui::NotifyLevel;
 using gui::GuiNotification;
 using lib::diff::GenNode;
 //using util::cStr;
-using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1099 : include needed temporarily
+using util::_Fmt;                              //////////////////////////////////////////////////////////////TICKET #1140 : include needed temporarily
 using util::isYes;
 using std::string;
 
@@ -144,7 +144,7 @@ COMMAND_DEFINITION (meta_deactivateContentDiff)
   /* ===== Demo and Development ===== */
   
   /** DemoGuiRoundtrip: push a notification info message back up into the UI.
-   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1140 : prototypical Proc-GUI communication
    */
 COMMAND_DEFINITION (test_meta_displayInfo)
   {
@@ -164,7 +164,7 @@ COMMAND_DEFINITION (test_meta_displayInfo)
   
   
   /** DemoGuiRoundtrip: send a `markError` message back up into the UI.
-   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1140 : prototypical Proc-GUI communication
    */
 COMMAND_DEFINITION (test_meta_markError)
   {
@@ -185,7 +185,7 @@ COMMAND_DEFINITION (test_meta_markError)
   
   
   /** DemoGuiRoundtrip: send a `markNote` message back up into the UI.
-   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1140 : prototypical Proc-GUI communication
    */
 COMMAND_DEFINITION (test_meta_markNote)
   {
@@ -206,7 +206,7 @@ COMMAND_DEFINITION (test_meta_markNote)
   
   
   /** DemoGuiRoundtrip: send a generic `mark` message with given _action ID_ back up into the UI.
-   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1099 : prototypical Proc-GUI communication
+   * @todo this is a demo mock setup to further development of the Proc-UI integration     //////////////////TICKET #1140 : prototypical Proc-GUI communication
    */
 COMMAND_DEFINITION (test_meta_markAction)
   {
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 723417fae..7f9f9ecc6 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -38,23 +38,45 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501940591109" ID="ID_1925240675" MODIFIED="1518487921039" TEXT="#1099 DemoGuiRoundtrip">
-<arrowlink COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" STARTARROW="None" STARTINCLINATION="-51;592;"/>
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1501940591109" ID="ID_1925240675" MODIFIED="1538838811130" TEXT="#1099 DemoGuiRoundtrip">
+<arrowlink COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" STARTARROW="None" STARTINCLINATION="-7;605;"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1501940627280" ID="ID_1675066241" MODIFIED="1518487921039" TEXT="Dummy-Code im UI"/>
 <node CREATED="1501940632871" ID="ID_189611570" MODIFIED="1518487921039" TEXT="Dummy Proc-Command"/>
 <node CREATED="1501940639479" ID="ID_1314787910" MODIFIED="1518487921039" TEXT="komplettes Ping-Pong"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1518487921039" TEXT="DummySessionConnection">
-<arrowlink COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="123;-106;" ID="Arrow_ID_1867016690" STARTARROW="None" STARTINCLINATION="-144;215;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1538840404782" TEXT="DummySessionConnection">
+<arrowlink COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-9;-46;" ID="Arrow_ID_1867016690" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1481320639544" ID="ID_1440497947" MODIFIED="1518487921039" TEXT="Singleton"/>
 <node CREATED="1481320642455" ID="ID_1938045938" MODIFIED="1518487921039" TEXT="hat fake Session content"/>
 <node CREATED="1481320650486" ID="ID_155238526" MODIFIED="1518487921039" TEXT="bietet fake Commands"/>
 <node CREATED="1481320666196" ID="ID_1580591981" MODIFIED="1518487921039" TEXT="plus zugeh&#xf6;rige Diagnostik"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531419217662" ID="ID_1622732481" MODIFIED="1531419224038" TEXT="#1147 establish UI start-up sequence">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531419217662" ID="ID_1622732481" MODIFIED="1538838868097" TEXT="#1147 establish UI start-up sequence">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538839140096" ID="ID_1491571377" MODIFIED="1538839161659" TEXT="#1145 define startup sequence">
+<icon BUILTIN="pencil"/>
+<node CREATED="1538839163477" ID="ID_840651927" MODIFIED="1538839181676" TEXT="&quot;eigentlich&quot; schon erledigt">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+<node CREATED="1538839170700" ID="ID_172497653" MODIFIED="1538839196789" STYLE="fork">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b><font color="#e01f1f">TODO</font></b>: Infos zusammentragen und dokumentieren
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1538839205056" ID="ID_1118716259" MODIFIED="1538839221765" TEXT="Lumiera Website -- Design-Sektion">
+<icon BUILTIN="info"/>
+</node>
+</node>
 <node CREATED="1531419242634" ID="ID_1022049727" MODIFIED="1531419624076" TEXT="Interfaces hochfahren">
 <arrowlink COLOR="#effa97" DESTINATION="ID_687951877" ENDARROW="Default" ENDINCLINATION="-545;-1640;" ID="Arrow_ID_1500281313" STARTARROW="None" STARTINCLINATION="-189;37;"/>
 </node>
@@ -66,9 +88,10 @@
 <node CREATED="1477784793993" ID="ID_1868522177" MODIFIED="1518487921039" TEXT="Umbau">
 <linktarget COLOR="#bc4930" DESTINATION="ID_1868522177" ENDARROW="Default" ENDINCLINATION="221;282;" ID="Arrow_ID_600425644" SOURCE="ID_707273464" STARTARROW="None" STARTINCLINATION="1925;196;"/>
 <icon BUILTIN="hourglass"/>
-<node CREATED="1477784813895" ID="ID_1343270939" MODIFIED="1518487921039" TEXT="Model durch UI-Bus ersetzen">
-<linktarget COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="123;-106;" ID="Arrow_ID_1867016690" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-144;215;"/>
+<node CREATED="1477784813895" FOLDED="true" ID="ID_1343270939" MODIFIED="1538840432473" TEXT="Model durch UI-Bus ersetzen">
+<linktarget COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-9;-46;" ID="Arrow_ID_1867016690" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" SOURCE="ID_202253849" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1481320683706" ID="ID_1226263415" MODIFIED="1518487921039" TEXT="kl&#xe4;ren, wo der Bus aufgeh&#xe4;ngt wird">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481331063782" ID="ID_1606852933" MODIFIED="1518487921039" TEXT="Lifecycle-Frontend UI-Bus"/>
@@ -216,7 +239,7 @@
 <node COLOR="#338800" CREATED="1481320759472" ID="ID_687951877" MODIFIED="1538263556139" TEXT="Interfaces &#xf6;ffnen">
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 <icon BUILTIN="button_ok"/>
-<node CREATED="1481320765135" ID="ID_379585622" MODIFIED="1518487921041">
+<node CREATED="1481320765135" FOLDED="true" ID="ID_379585622" MODIFIED="1538840210708">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -228,6 +251,7 @@
   </body>
 </html></richcontent>
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+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484792679322" HGAP="13" ID="ID_426218722" MODIFIED="1538267933539" TEXT="#1047 preliminary definition of GuiNotification facade" VSHIFT="-3">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -665,7 +689,7 @@
 </node>
 <node COLOR="#435e98" CREATED="1484797646771" HGAP="44" ID="ID_1605520996" MODIFIED="1538263574976" TEXT="Ausgestaltung" VSHIFT="10">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1501859455212" ID="ID_751494565" MODIFIED="1518487921045" TEXT="Lebenszyklus">
+<node CREATED="1501859455212" ID="ID_751494565" MODIFIED="1538840190401" TEXT="Lebenszyklus">
 <node CREATED="1484797663121" ID="ID_134980216" MODIFIED="1518487921045" TEXT="braucht Bus-Connection">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1484797863862" FOLDED="true" ID="ID_464230340" MODIFIED="1538268217733" TEXT="zum Controller machen?">
@@ -935,7 +959,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1484797808349" HGAP="31" ID="ID_389264738" MODIFIED="1538263470364" TEXT="Notification-Funktionen" VSHIFT="11">
+<node COLOR="#338800" CREATED="1484797808349" FOLDED="true" HGAP="31" ID="ID_389264738" MODIFIED="1538840134333" TEXT="Notification-Funktionen" VSHIFT="11">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501854084264" HGAP="-42" ID="ID_1333991907" MODIFIED="1538263469663" TEXT="allgemein...." VSHIFT="-60">
 <icon BUILTIN="messagebox_warning"/>
@@ -943,8 +967,9 @@
 <arrowlink COLOR="#a75677" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="-317;-24;" ID="Arrow_ID_274836249" STARTARROW="None" STARTINCLINATION="-647;-66;"/>
 </node>
 <node CREATED="1501854114284" ID="ID_168912186" MODIFIED="1538263469663" TEXT="Lebenszyklus"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#01908b" CREATED="1502411488645" ID="ID_1875294174" MODIFIED="1538263469663" TEXT="Fehler im UI">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1502411488645" FOLDED="true" ID="ID_1875294174" MODIFIED="1538840090150" TEXT="Fehler im UI">
 <linktarget COLOR="#84b6b7" DESTINATION="ID_1875294174" ENDARROW="Default" ENDINCLINATION="1297;-64;" ID="Arrow_ID_245240331" SOURCE="ID_1177399909" STARTARROW="None" STARTINCLINATION="285;0;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
 <node CREATED="1502411559060" ID="ID_1282973269" MODIFIED="1538263469663" TEXT="GTK nicht exception-safe">
 <icon BUILTIN="messagebox_warning"/>
@@ -996,8 +1021,10 @@
 </node>
 </node>
 </node>
-<node CREATED="1484797813373" ID="ID_536855363" MODIFIED="1538263469663" TEXT="generische Nachricht"/>
-<node CREATED="1484797818780" ID="ID_354397333" MODIFIED="1538263469663" TEXT="state mark">
+<node COLOR="#338800" CREATED="1484797813373" ID="ID_536855363" MODIFIED="1538840099146" TEXT="generische Nachricht">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1484797818780" FOLDED="true" ID="ID_354397333" MODIFIED="1538840102986" TEXT="state mark">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1484877574046" ID="ID_251939815" MODIFIED="1538263469663" TEXT="Error">
 <icon BUILTIN="button_ok"/>
@@ -1006,12 +1033,12 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1504203488690" ID="ID_149796171" MODIFIED="1538263469663" TEXT="Fehlermeldungen">
+<node COLOR="#338800" CREATED="1504203488690" FOLDED="true" ID="ID_149796171" MODIFIED="1538840105074" TEXT="Fehlermeldungen">
 <linktarget COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" SOURCE="ID_821848615" STARTARROW="None" STARTINCLINATION="1509;156;"/>
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504203497529" ID="ID_1933339677" MODIFIED="1538263469663" TEXT="#1102 brauche Fehlerlog-Widget">
+<node COLOR="#338800" CREATED="1504203497529" ID="ID_1933339677" MODIFIED="1538839626771" TEXT="#1102 brauche Fehlerlog-Widget">
 <linktarget COLOR="#5e6d7f" DESTINATION="ID_1933339677" ENDARROW="Default" ENDINCLINATION="201;-32;" ID="Arrow_ID_1887448672" SOURCE="ID_376091136" STARTARROW="None" STARTINCLINATION="-44;52;"/>
-<icon BUILTIN="bell"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1504203643550" ID="ID_764647453" MODIFIED="1538263469663" TEXT="via InteractionDirector ansprechen"/>
 <node CREATED="1504203694423" ID="ID_812129962" MODIFIED="1538263469663">
 <richcontent TYPE="NODE"><html>
@@ -1035,9 +1062,9 @@
 </node>
 <node CREATED="1504203511199" ID="ID_1027795869" MODIFIED="1538263469664" TEXT="Nachricht per UI-Bus senden"/>
 </node>
-<node CREATED="1484797822403" ID="ID_364545191" MODIFIED="1538263469664" TEXT="Diff">
+<node COLOR="#338800" CREATED="1484797822403" FOLDED="true" HGAP="37" ID="ID_364545191" MODIFIED="1538840131323" TEXT="Diff" VSHIFT="8">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1502401930856" ID="ID_634125084" MODIFIED="1538263469664" TEXT="#1066 concept how to hand over diff messages">
+<node COLOR="#338800" CREATED="1502401930856" FOLDED="true" ID="ID_634125084" MODIFIED="1538839622321" TEXT="#1066 concept how to hand over diff messages">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502410099141" ID="ID_1388523431" MODIFIED="1538263469664" TEXT="unn&#xf6;tig: zwei Abstraktions-Typen">
 <icon BUILTIN="stop-sign"/>
@@ -1270,7 +1297,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1493753249399" HGAP="75" ID="ID_1023343635" MODIFIED="1538263469665" TEXT="#1098 hand-over in UI-Thread" VSHIFT="61">
+<node COLOR="#338800" CREATED="1493753249399" FOLDED="true" HGAP="64" ID="ID_1023343635" MODIFIED="1538840125563" TEXT="#1098 hand-over in UI-Thread" VSHIFT="83">
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 <linktarget COLOR="#84c6b8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="21;233;" ID="Arrow_ID_1372135725" SOURCE="ID_995145542" STARTARROW="None" STARTINCLINATION="237;0;"/>
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@@ -1281,7 +1308,7 @@
 <node CREATED="1501850603736" ID="ID_1030340631" MODIFIED="1538263469665" TEXT="im UI-Thread erzeugen und binden"/>
 <node CREATED="1501850614630" ID="ID_196299293" MODIFIED="1538263469665" TEXT="emit() -&gt; event im UI-Thread"/>
 </node>
-<node COLOR="#435e98" CREATED="1501850632636" ID="ID_431682708" MODIFIED="1538263469665" TEXT="technische Probleme">
+<node COLOR="#435e98" CREATED="1501850632636" FOLDED="true" ID="ID_431682708" MODIFIED="1538839594460" TEXT="technische Probleme">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1501850684373" ID="ID_1688212376" MODIFIED="1538263469665" TEXT="ein Dispatcher pro Call">
 <richcontent TYPE="NOTE"><html>
@@ -1363,7 +1390,7 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="yes"/>
-<node COLOR="#338800" CREATED="1501938738836" ID="ID_1257499857" MODIFIED="1538263469665" TEXT="Helper: CallQueue">
+<node COLOR="#338800" CREATED="1501938738836" FOLDED="true" ID="ID_1257499857" MODIFIED="1538839544330" TEXT="Helper: CallQueue">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501938715247" ID="ID_1286525769" MODIFIED="1538263469666" TEXT="simplistic">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -1373,7 +1400,7 @@
 <node CREATED="1501938690626" ID="ID_353231581" MODIFIED="1538263469666" TEXT="thread safe queue"/>
 <node CREATED="1501938705321" ID="ID_1924064403" MODIFIED="1538263469666" TEXT="lambdas f&#xfc;r Argument-binding"/>
 </node>
-<node COLOR="#338800" CREATED="1501938776839" ID="ID_1031878628" MODIFIED="1538263469666" TEXT="Convenience-Wrapper">
+<node COLOR="#338800" CREATED="1501938776839" FOLDED="true" ID="ID_1031878628" MODIFIED="1538839555201" TEXT="Convenience-Wrapper">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501939110138" ID="ID_203135379" MODIFIED="1538263469666" TEXT="Lambda konstruieren">
 <icon BUILTIN="button_ok"/>
@@ -1384,7 +1411,7 @@
 <node CREATED="1501939149837" ID="ID_1733976265" MODIFIED="1538263469666" TEXT="diese an Glib::Dispatcher binden">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1502404797300" ID="ID_1177399909" MODIFIED="1538263469666" TEXT="Exceptions fangen">
+<node CREATED="1502404797300" FOLDED="true" ID="ID_1177399909" MODIFIED="1538839553473" TEXT="Exceptions fangen">
 <arrowlink COLOR="#84b6b7" DESTINATION="ID_1875294174" ENDARROW="Default" ENDINCLINATION="1297;-64;" ID="Arrow_ID_245240331" STARTARROW="None" STARTINCLINATION="285;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#435e98" CREATED="1522935881957" HGAP="23" ID="ID_564244010" MODIFIED="1538263469666" TEXT="4/2018 was ist hier der Stand?" VSHIFT="16">
@@ -1450,7 +1477,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1501939174506" ID="ID_504999068" MODIFIED="1538263469666" TEXT="in NotificationService integrieren">
+<node COLOR="#338800" CREATED="1501939174506" FOLDED="true" ID="ID_504999068" MODIFIED="1538839557169" TEXT="in NotificationService integrieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502375098210" ID="ID_581509556" MODIFIED="1538263469666" STYLE="fork" TEXT="als PImpl">
 <icon BUILTIN="button_ok"/>
@@ -1465,7 +1492,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1502375294344" ID="ID_640199096" MODIFIED="1538263469666" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
+<node COLOR="#338800" CREATED="1502375294344" FOLDED="true" ID="ID_640199096" MODIFIED="1538839576310" TEXT="Spezialbehandlung f&#xfc;r Shutdown">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1502375312469" ID="ID_1075926054" MODIFIED="1538263469666" TEXT="ironischerweise...">
 <richcontent TYPE="NOTE"><html>
@@ -1534,14 +1561,14 @@
 <node CREATED="1502390886681" ID="ID_985994192" MODIFIED="1538263469666" TEXT="f&#xfc;hre Benachrichtiguns-Level ein">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502390603674" ID="ID_125356908" MODIFIED="1538263469666" TEXT="#1102 : build a message display box in the UI">
+<node COLOR="#338800" CREATED="1502390603674" ID="ID_125356908" MODIFIED="1538839473841" TEXT="#1102 : build a message display box in the UI">
 <arrowlink COLOR="#8c8bae" DESTINATION="ID_1926586811" ENDARROW="Default" ENDINCLINATION="1456;47;" ID="Arrow_ID_1593124756" STARTARROW="None" STARTINCLINATION="-839;779;"/>
-<icon BUILTIN="hourglass"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
-<node CREATED="1501939193031" HGAP="3" ID="ID_1045913810" MODIFIED="1538263469666" TEXT="Test" VSHIFT="20">
-<icon BUILTIN="bell"/>
+<node CREATED="1501939193031" HGAP="3" ID="ID_1045913810" MODIFIED="1538839583477" TEXT="Test" VSHIFT="20">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1501939204166" ID="ID_383444966" MODIFIED="1538263469666" TEXT="CallQueue_test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1501946847700" ID="ID_1917302142" MODIFIED="1538263469666" TEXT="basic">
@@ -1554,11 +1581,12 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1501939212693" ID="ID_1007296291" MODIFIED="1538263469666" TEXT="#1099 DemoGuiRoundtrip">
-<linktarget COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" SOURCE="ID_1925240675" STARTARROW="None" STARTINCLINATION="-51;592;"/>
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1501939212693" FOLDED="true" ID="ID_1007296291" MODIFIED="1538839532670" TEXT="#1099 DemoGuiRoundtrip">
+<linktarget COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" SOURCE="ID_1925240675" STARTARROW="None" STARTINCLINATION="-7;605;"/>
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-<icon BUILTIN="pencil"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="idea"/>
 <node CREATED="1501939235834" FOLDED="true" ID="ID_1160414548" MODIFIED="1538263469666" TEXT="Men&#xfc;-Eintrag">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533402935579" ID="ID_263665767" MODIFIED="1533402958273" TEXT="erst mal Bang!-Button verwenden">
 <icon BUILTIN="flag-yellow"/>
@@ -1570,7 +1598,7 @@
 <node CREATED="1501939240217" ID="ID_325602880" MODIFIED="1538263469667" TEXT="triggert Proc-Command"/>
 <node CREATED="1501939252991" ID="ID_31140909" MODIFIED="1538263469667" TEXT="dieses sendet Mark zur&#xfc;ck"/>
 <node CREATED="1501939263030" ID="ID_381890207" MODIFIED="1538263469667" TEXT="ein Widget im UI reagiert">
-<node COLOR="#338800" CREATED="1533402866549" ID="ID_899369632" MODIFIED="1538263469667" TEXT="fest verdrahtete ID">
+<node COLOR="#338800" CREATED="1533402866549" FOLDED="true" ID="ID_899369632" MODIFIED="1538777700165" TEXT="fest verdrahtete ID">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1533688905326" ID="ID_709974587" MODIFIED="1538263469667" TEXT="geh&#xf6;rt dem NotificationController"/>
 <node CREATED="1533688913996" ID="ID_33570780" MODIFIED="1538263469667">
@@ -1592,11 +1620,11 @@
 <arrowlink COLOR="#455086" DESTINATION="ID_396920290" ENDARROW="Default" ENDINCLINATION="-38;-97;" ID="Arrow_ID_729082861" STARTARROW="None" STARTINCLINATION="101;-7;"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1538263758857" TEXT="wo ist die ID selber definiert">
+<node COLOR="#338800" CREATED="1533771813324" ID="ID_930319427" MODIFIED="1538777683159" TEXT="wo ist die ID selber definiert">
 <icon BUILTIN="help"/>
 <node CREATED="1533911116328" ID="ID_1079600246" MODIFIED="1533911128764" TEXT="sie mu&#xdf; insgesamt reprouzierbar sein"/>
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-<node CREATED="1533911854871" HGAP="23" ID="ID_1953310668" MODIFIED="1534026766064" TEXT="Problem dabei" VSHIFT="11">
+<node CREATED="1533911854871" FOLDED="true" HGAP="23" ID="ID_1953310668" MODIFIED="1538777693883" TEXT="Problem dabei" VSHIFT="11">
 <node CREATED="1533911897569" ID="ID_1876551933" MODIFIED="1533911919154" TEXT="ID ist somit Teil des Interface"/>
 <node CREATED="1533911919814" ID="ID_558535868" MODIFIED="1533911928937" TEXT="welches Interface?">
 <node CREATED="1533915325903" ID="ID_1053391149" MODIFIED="1533915334817" TEXT="GuiNotification">
@@ -1767,13 +1795,7 @@
 </node>
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850824341" ID="ID_1234148559" MODIFIED="1538263469667" TEXT="vorl&#xe4;ufiges Grid-Layout">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850841673" ID="ID_375492094" MODIFIED="1538263469667" TEXT="ParentView-Interface">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node CREATED="1504203667130" HGAP="50" ID="ID_1745777873" MODIFIED="1538584290312" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log" VSHIFT="2">
+<node CREATED="1504203667130" FOLDED="true" HGAP="50" ID="ID_1745777873" MODIFIED="1538778298136" TEXT="vorl&#xe4;ufig Empf&#xe4;nger f&#xfc;r Fehler-Log" VSHIFT="2">
 <arrowlink COLOR="#98a2c5" DESTINATION="ID_217810080" ENDARROW="Default" ENDINCLINATION="1891;-1228;" ID="Arrow_ID_1688804340" STARTARROW="None" STARTINCLINATION="-1261;74;"/>
 <linktarget COLOR="#7893b2" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="-499;-464;" ID="Arrow_ID_1590510093" SOURCE="ID_812129962" STARTARROW="None" STARTINCLINATION="808;0;"/>
 <linktarget COLOR="#628195" DESTINATION="ID_1745777873" ENDARROW="Default" ENDINCLINATION="245;349;" ID="Arrow_ID_1743659141" SOURCE="ID_1981930639" STARTARROW="None" STARTINCLINATION="397;197;"/>
@@ -2514,8 +2536,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533689031860" ID="ID_657232437" MODIFIED="1538263469670" TEXT="Implementierung">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1533689031860" HGAP="97" ID="ID_657232437" MODIFIED="1538778282275" TEXT="Implementierung" VSHIFT="9">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1533689046050" ID="ID_32330448" MODIFIED="1538263469670" TEXT="ErrorLog-Widget">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -2591,7 +2613,7 @@
 <node COLOR="#435e98" CREATED="1533689076590" ID="ID_321096443" MODIFIED="1538263469671" TEXT="mit Bus verdrahten und ID global konstant definieren">
 <icon BUILTIN="full-2"/>
 </node>
-<node COLOR="#435e98" CREATED="1533689098787" ID="ID_191346591" MODIFIED="1538756289018" TEXT="Empfangs-Logik im NotificationHub (Controller)">
+<node COLOR="#435e98" CREATED="1533689098787" FOLDED="true" ID="ID_191346591" MODIFIED="1538778263755" TEXT="Empfangs-Logik im NotificationHub (Controller)">
 <icon BUILTIN="full-3"/>
 <node COLOR="#338800" CREATED="1534119968325" ID="ID_1630503080" MODIFIED="1538746815645" TEXT="Einrichtung">
 <icon BUILTIN="button_ok"/>
@@ -2832,15 +2854,15 @@
     </p>
   </body>
 </html></richcontent>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1538263469671" TEXT="verifizieren">
+<node COLOR="#338800" CREATED="1534721528967" ID="ID_1984401497" MODIFIED="1538778232908" TEXT="verifizieren">
 <arrowlink DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1534721523435" ID="ID_679085788" MODIFIED="1538263469671" TEXT="dokumentieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1538263469671" TEXT="sofern es im Panel lebt, passiert das automatisch">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#435e98" CREATED="1534721512505" ID="ID_1260021418" MODIFIED="1538778245658" TEXT="sofern es im Panel lebt, passiert das automatisch">
+<icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
@@ -3023,7 +3045,7 @@
 <node COLOR="#435e98" CREATED="1533689164394" ID="ID_405297881" MODIFIED="1538708568344" TEXT="in NotificationService integrieren">
 <icon BUILTIN="full-4"/>
 </node>
-<node COLOR="#435e98" CREATED="1533689225658" ID="ID_662017160" MODIFIED="1538263469673" TEXT="Pling! -Button">
+<node COLOR="#435e98" CREATED="1533689225658" FOLDED="true" ID="ID_662017160" MODIFIED="1538777756201" TEXT="Pling! -Button">
 <icon BUILTIN="full-5"/>
 <node COLOR="#338800" CREATED="1533689235200" FOLDED="true" ID="ID_1760873318" MODIFIED="1538263469673" TEXT="non-modal TestControl">
 <icon BUILTIN="button_ok"/>
@@ -3808,7 +3830,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1534721737507" ID="ID_1467431829" MODIFIED="1538263469675" TEXT="verifizieren">
+<node COLOR="#338800" CREATED="1534721737507" FOLDED="true" ID="ID_1467431829" MODIFIED="1538778273497" TEXT="verifizieren">
 <icon BUILTIN="full-6"/>
 <node COLOR="#338800" CREATED="1538234826126" ID="ID_1989018475" MODIFIED="1538263469675" TEXT="Round-Trip &#xfc;ber Thrad-Grenzen hinweg">
 <icon BUILTIN="button_ok"/>
@@ -3816,24 +3838,24 @@
 <node COLOR="#338800" CREATED="1538234843916" ID="ID_1672079020" MODIFIED="1538263469675" TEXT="Argument-&#xdc;bergabe per Kopie">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1538263469675" TEXT="Belegen der View">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721764680" ID="ID_237796687" MODIFIED="1538777025274" TEXT="Belegen der View">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538747863296" ID="ID_1171544173" MODIFIED="1538747871991" TEXT="Reaktion auf Error-state">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538747863296" ID="ID_1171544173" MODIFIED="1538777026741" TEXT="Reaktion auf Error-state">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1538263469675" TEXT="Verbinden mit bestehendem InfoboxPanel">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721772238" ID="ID_130695962" MODIFIED="1538777041184" TEXT="Verbinden mit bestehendem InfoboxPanel">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721811969" ID="ID_1320259895" MODIFIED="1538263469675" TEXT="auch in einerm anderen Fenster">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721811969" ID="ID_1320259895" MODIFIED="1538777615902" TEXT="auch in einerm anderen Fenster">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721785596" ID="ID_1517054985" MODIFIED="1538263469675" TEXT="Erzeugen eines neuen InfoboxPanels">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534721785596" ID="ID_1517054985" MODIFIED="1538777054390" TEXT="Erzeugen eines neuen InfoboxPanels">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534721819264" ID="ID_1360416196" MODIFIED="1538263469675" TEXT="Panel durch Ersetzung zerst&#xf6;ren">
+<node COLOR="#338800" CREATED="1534721819264" ID="ID_1360416196" MODIFIED="1538778252025" TEXT="Panel durch Ersetzung zerst&#xf6;ren">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1360416196" ENDARROW="Default" ENDINCLINATION="417;34;" ID="Arrow_ID_1337668046" SOURCE="ID_1984401497" STARTARROW="None" STARTINCLINATION="-454;-9;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1537531073966" ID="ID_973305985" MODIFIED="1538708635973" TEXT="Funktionen">
 <icon BUILTIN="button_ok"/>
@@ -3861,8 +3883,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532006073" HGAP="-92" ID="ID_135756255" MODIFIED="1538263469676" TEXT="Neben-Nutzen" VSHIFT="15">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537532006073" HGAP="-92" ID="ID_135756255" MODIFIED="1538839483837" TEXT="Neben-Nutzen" VSHIFT="15">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537532035141" ID="ID_188521578" MODIFIED="1538263469676" TEXT="NotificationService">
 <icon BUILTIN="info"/>
 </node>
@@ -3874,8 +3896,22 @@
 <arrowlink COLOR="#c19dc4" DESTINATION="ID_149796171" ENDARROW="Default" ENDINCLINATION="1300;76;" ID="Arrow_ID_451002492" STARTARROW="None" STARTINCLINATION="1509;156;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1538266369889" TEXT="dokumentieren und Ticket #1047 schlie&#xdf;en">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1537532456004" ID="ID_1700828304" MODIFIED="1538839492410" TEXT="dokumentieren und Ticket #1047 schlie&#xdf;en">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538836931857" ID="ID_438461567" MODIFIED="1538839523006" TEXT="#1174 kann auch geschlossen werden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      #1174 UI self diagnostics window
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -3883,7 +3919,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1484797684438" HGAP="21" ID="ID_932852399" MODIFIED="1518487921054" TEXT="GUI-Shutdown implementieren" VSHIFT="13">
+<node COLOR="#338800" CREATED="1484797684438" FOLDED="true" HGAP="21" ID="ID_932852399" MODIFIED="1538840181217" TEXT="GUI-Shutdown implementieren" VSHIFT="13">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -3897,6 +3933,7 @@
     </p>
   </body>
 </html></richcontent>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1485116867963" ID="ID_1146024699" MODIFIED="1518487921054" TEXT="bisher kann man nur das Fenster schlie&#xdf;en">
 <icon BUILTIN="info"/>
 <node CREATED="1485116884925" ID="ID_296160451" MODIFIED="1518487921055" TEXT="wie funktioniert das?">
@@ -3917,7 +3954,7 @@
 <arrowlink DESTINATION="ID_599315721" ENDARROW="Default" ENDINCLINATION="-137;-12;" ID="Arrow_ID_1743989671" STARTARROW="None" STARTINCLINATION="-18;215;"/>
 <icon BUILTIN="help"/>
 </node>
-<node COLOR="#763434" CREATED="1484797766035" ID="ID_1740926324" MODIFIED="1518487921055" TEXT="wie signalisieren wir das">
+<node COLOR="#763434" CREATED="1484797766035" FOLDED="true" ID="ID_1740926324" MODIFIED="1538840144165" TEXT="wie signalisieren wir das">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="help"/>
 <node CREATED="1501781461059" ID="ID_1041497316" MODIFIED="1518487921055" TEXT="wie den UiManager erreichen?">
@@ -3978,7 +4015,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1501804804734" HGAP="33" ID="ID_1925973923" MODIFIED="1518487921055" TEXT="Mechanismus zum Schlie&#xdf;en" VSHIFT="6">
+<node COLOR="#338800" CREATED="1501804804734" FOLDED="true" HGAP="33" ID="ID_1925973923" MODIFIED="1538840149116" TEXT="Mechanismus zum Schlie&#xdf;en" VSHIFT="6">
 <icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1484797911392" ID="ID_286857196" MODIFIED="1531585120208" TEXT="geeigneten Mechanisums definieren">
 <linktarget COLOR="#872666" DESTINATION="ID_286857196" ENDARROW="Default" ENDINCLINATION="-684;0;" ID="Arrow_ID_1606936924" SOURCE="ID_405470138" STARTARROW="Default" STARTINCLINATION="1461;0;"/>
@@ -4009,7 +4046,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1488419591265" HGAP="75" ID="ID_471609909" MODIFIED="1518487921055" VSHIFT="14">
+<node COLOR="#435e98" CREATED="1488419591265" HGAP="77" ID="ID_471609909" MODIFIED="1538840175237" VSHIFT="53">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4025,7 +4062,7 @@
 </html></richcontent>
 <arrowlink COLOR="#851358" DESTINATION="ID_548720270" ENDARROW="Default" ENDINCLINATION="-663;-614;" ID="Arrow_ID_325703166" STARTARROW="None" STARTINCLINATION="1110;608;"/>
 <icon BUILTIN="messagebox_warning"/>
-<node COLOR="#338800" CREATED="1485118623744" HGAP="23" ID="ID_392996871" MODIFIED="1533608413545" TEXT="#1032 use gtk::Application instead of gtk::Main" VSHIFT="11">
+<node COLOR="#338800" CREATED="1485118623744" FOLDED="true" HGAP="23" ID="ID_392996871" MODIFIED="1538840161485" TEXT="#1032 use gtk::Application instead of gtk::Main" VSHIFT="11">
 <arrowlink COLOR="#ae1856" DESTINATION="ID_206480879" ENDARROW="Default" ENDINCLINATION="715;0;" ID="Arrow_ID_926482654" STARTARROW="Default" STARTINCLINATION="134;383;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1485118668802" ID="ID_575152579" MODIFIED="1518487921055" TEXT="WindowManager verwendet gtk::Main"/>
@@ -4112,7 +4149,7 @@
 <font BOLD="true" NAME="SansSerif" SIZE="13"/>
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1493754789137" ID="ID_1903744710" MODIFIED="1518487921055" TEXT="kommt mir komisch vor">
+<node CREATED="1493754789137" FOLDED="true" ID="ID_1903744710" MODIFIED="1538778578031" TEXT="kommt mir komisch vor">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493754799439" ID="ID_288205807" MODIFIED="1518487921055" TEXT="das &quot;riecht&quot; nach Framework"/>
 <node CREATED="1493754808373" ID="ID_998804989" MODIFIED="1533608413546" TEXT="&quot;wir machen bequem alles f&#xfc;r Sie&quot;">
@@ -4180,7 +4217,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1485130302095" HGAP="28" ID="ID_506541774" MODIFIED="1518487921056" TEXT="neuer UiManager" VSHIFT="14">
+<node COLOR="#338800" CREATED="1485130302095" FOLDED="true" HGAP="28" ID="ID_506541774" MODIFIED="1538840166338" TEXT="neuer UiManager" VSHIFT="14">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1485452508180" ID="ID_549617075" MODIFIED="1518487921056" TEXT="ist front-end daf&#xfc;r">
 <icon BUILTIN="button_cancel"/>
@@ -4194,7 +4231,7 @@
 <linktarget COLOR="#667e90" DESTINATION="ID_599315721" ENDARROW="None" ENDINCLINATION="41;328;" ID="Arrow_ID_1963473410" SOURCE="ID_1478388503" STARTARROW="Default" STARTINCLINATION="943;-58;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1493762472175" ID="ID_964179569" MODIFIED="1518487921056" TEXT="verwendet Fenster-Liste"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_869056268" MODIFIED="1534511296643" TEXT="alle noch offenen Fenster verbergen">
+<node COLOR="#435e98" CREATED="1493762490205" ID="ID_869056268" MODIFIED="1538778695808" TEXT="alle noch offenen Fenster verbergen">
 <arrowlink COLOR="#543c6f" DESTINATION="ID_159568066" ENDARROW="Default" ENDINCLINATION="489;-554;" ID="Arrow_ID_373486067" STARTARROW="None" STARTINCLINATION="-762;-46;"/>
 <icon BUILTIN="help"/>
 </node>
@@ -4247,7 +4284,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1481320772830" HGAP="21" ID="ID_1607125695" MODIFIED="1518487921056" VSHIFT="11">
+<node CREATED="1481320772830" FOLDED="true" HGAP="21" ID="ID_1607125695" MODIFIED="1538840336285" VSHIFT="11">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4345,7 +4382,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1481320847724" HGAP="42" ID="ID_545146501" MODIFIED="1518487921056" TEXT="wo ansiedeln" VSHIFT="-6">
+<node CREATED="1481320847724" FOLDED="true" HGAP="42" ID="ID_545146501" MODIFIED="1538840221525" TEXT="wo ansiedeln" VSHIFT="-6">
 <icon BUILTIN="help"/>
 <node CREATED="1481509901926" ID="ID_1612540786" MODIFIED="1518487921056" TEXT="in proc::control"/>
 <node CREATED="1481767522123" ID="ID_789146708" MODIFIED="1518487921056">
@@ -4458,7 +4495,7 @@
 </node>
 <node CREATED="1481320850779" HGAP="45" ID="ID_1632600003" MODIFIED="1518487921057" TEXT="hochfahren" VSHIFT="-3">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1481509921211" ID="ID_1515469097" MODIFIED="1525124214734">
+<node CREATED="1481509921211" FOLDED="true" ID="ID_1515469097" MODIFIED="1538840237755">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4541,7 +4578,7 @@
 <node CREATED="1482464436919" ID="ID_64274402" MODIFIED="1482464442042" TEXT="f&#xfc;hrt Commands aus"/>
 <node CREATED="1482464442438" ID="ID_1339868449" MODIFIED="1482464449049" TEXT="startet den Builder"/>
 </node>
-<node CREATED="1481599421021" ID="ID_461768132" MODIFIED="1512926191671" TEXT="Locking kl&#xe4;ren">
+<node CREATED="1481599421021" FOLDED="true" ID="ID_461768132" MODIFIED="1538840232706" TEXT="Locking kl&#xe4;ren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481684383530" ID="ID_236117" MODIFIED="1512926191672" TEXT="zwei unabh&#xe4;ngige Locks">
 <icon BUILTIN="yes"/>
@@ -4662,7 +4699,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1481510231986" HGAP="23" ID="ID_45803267" MODIFIED="1518487921057" TEXT="dort SessionCommandService instantiieren" VSHIFT="4">
+<node COLOR="#338800" CREATED="1481510231986" FOLDED="true" HGAP="23" ID="ID_45803267" MODIFIED="1538840243056" TEXT="dort SessionCommandService instantiieren" VSHIFT="4">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481769089234" ID="ID_1152351588" MODIFIED="1518487921057" TEXT="lebt in der DispatcherLoop">
 <arrowlink COLOR="#4aff51" DESTINATION="ID_1364443356" ENDARROW="Default" ENDINCLINATION="10;30;" ID="Arrow_ID_870320696" STARTARROW="Default" STARTINCLINATION="-221;-88;"/>
@@ -4752,9 +4789,9 @@
 <node CREATED="1483748231330" ID="ID_1962213649" MODIFIED="1518487921057" TEXT="soll hierzu sehen, da&#xdf; ein einfacher Aufruf wirklich klappt">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1483748323014" ID="ID_1031176077" MODIFIED="1518487921057" TEXT="Nachrichten vom UI-Bus entnehmen">
+<node CREATED="1483748323014" FOLDED="true" ID="ID_1031176077" MODIFIED="1538840309345" TEXT="Nachrichten vom UI-Bus entnehmen">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#520262" CREATED="1483908814960" HGAP="34" ID="ID_430949603" MODIFIED="1518487921057" TEXT="Design sinnvoll?" VSHIFT="6">
+<node COLOR="#520262" CREATED="1483908814960" FOLDED="true" HGAP="34" ID="ID_430949603" MODIFIED="1538840277766" TEXT="Design sinnvoll?" VSHIFT="6">
 <linktarget COLOR="#b694bf" DESTINATION="ID_430949603" ENDARROW="Default" ENDINCLINATION="178;425;" ID="Arrow_ID_1062305149" SOURCE="ID_329609486" STARTARROW="Default" STARTINCLINATION="-629;-2354;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="help"/>
@@ -4778,9 +4815,9 @@
 <node CREATED="1483909496110" ID="ID_1500666281" MODIFIED="1518487921058" TEXT="Command-Functor invocation VTable"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1483909585362" HGAP="1" ID="ID_1047452263" MODIFIED="1518487921058" TEXT="mu&#xdf; sich noch rechtfertigen" VSHIFT="11">
+<node COLOR="#435e98" CREATED="1483909585362" HGAP="1" ID="ID_1047452263" MODIFIED="1538840272769" TEXT="mu&#xdf; sich noch rechtfertigen" VSHIFT="11">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="yes"/>
 <node CREATED="1483909605879" ID="ID_1463483386" MODIFIED="1518487921058" TEXT="war eine Design-Wahl auf Verdacht">
 <icon BUILTIN="idea"/>
 </node>
@@ -4792,7 +4829,7 @@
 <node CREATED="1483755303243" HGAP="86" ID="ID_1425274731" MODIFIED="1518487921058" TEXT="Brauche Command-Handler" VSHIFT="11">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1483755317105" ID="ID_775818551" MODIFIED="1518487921058" TEXT="ist ein Visitor"/>
-<node CREATED="1483755320136" ID="ID_1343109260" MODIFIED="1518487921058" TEXT="Knackpunkt: Command-ID">
+<node CREATED="1483755320136" FOLDED="true" ID="ID_1343109260" MODIFIED="1538840288235" TEXT="Knackpunkt: Command-ID">
 <node CREATED="1483755331671" ID="ID_1913103415" MODIFIED="1518487921058" TEXT="wird im Visitor gebraucht">
 <node CREATED="1483909964935" ID="ID_991182613" MODIFIED="1518487921058">
 <richcontent TYPE="NODE"><html>
@@ -4868,7 +4905,7 @@
 <node CREATED="1483755360196" ID="ID_514688462" MODIFIED="1518487921058" TEXT="Nachrichten kommen ohne bestimmte Ordnung an"/>
 </node>
 </node>
-<node CREATED="1483910254385" HGAP="88" ID="ID_267402281" MODIFIED="1518487921058" TEXT="Command-Instanz-Management" VSHIFT="-8">
+<node CREATED="1483910254385" FOLDED="true" HGAP="88" ID="ID_267402281" MODIFIED="1538840283620" TEXT="Command-Instanz-Management" VSHIFT="-8">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1483910266799" ID="ID_86909318" MODIFIED="1518487921058" TEXT="wie funktioniert&apos;s?">
 <icon BUILTIN="help"/>
@@ -4905,7 +4942,7 @@
 <node CREATED="1483921070115" ID="ID_398046799" MODIFIED="1518487921058" TEXT="Prototyp-Service"/>
 <node CREATED="1483921132114" ID="ID_1652398711" MODIFIED="1518487921058" TEXT="liefert dekorierte Command-ID"/>
 <node CREATED="1483921149368" ID="ID_1028150245" MODIFIED="1518487921058" TEXT="im GUI nur noch Command-IDs"/>
-<node CREATED="1483924872930" ID="ID_242219866" MODIFIED="1533303593408">
+<node CREATED="1483924872930" ID="ID_242219866" MODIFIED="1538838665321">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -4933,7 +4970,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1483755390640" ID="ID_1882657994" MODIFIED="1518487921058" TEXT="Vorlage">
+<node CREATED="1483755390640" HGAP="66" ID="ID_1882657994" MODIFIED="1538840301236" TEXT="Vorlage" VSHIFT="-1">
 <icon BUILTIN="info"/>
 <node CREATED="1483755399334" ID="ID_582834462" MODIFIED="1518487921058" TEXT="AbstractTangible_test">
 <node CREATED="1483755406254" ID="ID_1800773105" MODIFIED="1518487921058" TEXT="hat inline-Visitor"/>
@@ -4970,7 +5007,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1483927552823" HGAP="-105" ID="ID_458362835" MODIFIED="1518487921058" TEXT="Unit-Test" VSHIFT="12">
+<node COLOR="#338800" CREATED="1483927552823" HGAP="-160" ID="ID_458362835" MODIFIED="1538840308219" TEXT="Unit-Test" VSHIFT="24">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1484294389310" ID="ID_100306048" MODIFIED="1518487921058" TEXT="direkter Aufruf der Facade">
 <icon BUILTIN="button_ok"/>
@@ -5000,7 +5037,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1482464658193" HGAP="-14" ID="ID_726798260" MODIFIED="1518487921059" TEXT="Ausgestaltung" VSHIFT="29">
+<node CREATED="1482464658193" FOLDED="true" HGAP="-14" ID="ID_726798260" MODIFIED="1538840330479" TEXT="Ausgestaltung" VSHIFT="29">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1482465840843" ID="ID_818984499" MODIFIED="1518487921059" TEXT="Entwurf">
 <icon BUILTIN="stop-sign"/>
@@ -5039,7 +5076,7 @@
 <node CREATED="1484377535829" ID="ID_488242691" MODIFIED="1518487921059" TEXT="Verwerfen von Commands"/>
 <node CREATED="1484377546779" ID="ID_1097356179" MODIFIED="1518487921059" TEXT="Command-ID - Typ"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1482465854513" HGAP="26" ID="ID_1477532018" MODIFIED="1518487921059" TEXT="Widerspruch zu Tangible " VSHIFT="12">
+<node COLOR="#435e98" CREATED="1482465854513" HGAP="26" ID="ID_1477532018" MODIFIED="1538840324244" TEXT="Widerspruch zu Tangible " VSHIFT="12">
 <icon BUILTIN="broken-line"/>
 <node CREATED="1482465965660" ID="ID_1945056449" MODIFIED="1518487921059" TEXT="Tangible::prepareCommand"/>
 <node CREATED="1482466012484" ID="ID_283758092" MODIFIED="1518487921059" TEXT="verwendet InvocationTrail">
@@ -5124,7 +5161,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1481320870369" HGAP="17" ID="ID_454465129" MODIFIED="1518487921059" TEXT="Rolle des &quot;Model&quot; kl&#xe4;ren" VSHIFT="20">
+<node CREATED="1481320870369" HGAP="17" ID="ID_454465129" MODIFIED="1538840353947" TEXT="Rolle des &quot;Model&quot; kl&#xe4;ren" VSHIFT="20">
+<icon BUILTIN="forward"/>
 <node CREATED="1484882430390" HGAP="56" ID="ID_836665320" MODIFIED="1518487921059" TEXT="Diff-Nachrichten" VSHIFT="-23">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1484882437421" ID="ID_1948154354" MODIFIED="1518487921059" TEXT="#1066 concept to pass diff messages">
 <icon BUILTIN="flag-yellow"/>
@@ -5138,6 +5176,10 @@
 <node CREATED="1484882506156" ID="ID_1297602514" MODIFIED="1518487921059" TEXT="Callback aus dem Event-Thread"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1538840339858" ID="ID_304902509" MODIFIED="1538840347494" TEXT="es gibt kein Model im klassischen Sinn">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
 </node>
 </node>
 <node CREATED="1477784829157" ID="ID_1998357180" MODIFIED="1518487921059" TEXT="Icon-Laden modernisieren"/>
@@ -5674,9 +5716,9 @@
 <arrowlink COLOR="#872666" DESTINATION="ID_286857196" ENDARROW="Default" ENDINCLINATION="-684;0;" ID="Arrow_ID_1606936924" STARTARROW="Default" STARTINCLINATION="1461;0;"/>
 <node CREATED="1502411273154" HGAP="57" ID="ID_1087419686" MODIFIED="1518487921060" TEXT="komplett?" VSHIFT="39">
 <icon BUILTIN="help"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_159568066" MODIFIED="1534511296643" TEXT="alle noch offenen Fenster verbergen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493762490205" ID="ID_159568066" MODIFIED="1538778675278" TEXT="alle noch offenen Fenster verbergen">
 <linktarget COLOR="#543c6f" DESTINATION="ID_159568066" ENDARROW="Default" ENDINCLINATION="489;-554;" ID="Arrow_ID_373486067" SOURCE="ID_869056268" STARTARROW="None" STARTINCLINATION="-762;-46;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="bell"/>
 <node CREATED="1495234856782" ID="ID_1605922951" MODIFIED="1518487921060" TEXT="machen wir bisher nicht"/>
 <node CREATED="1495234865717" ID="ID_1261122199" MODIFIED="1518487921060" TEXT="ist das notwendig?"/>
 <node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1538588303275" TEXT="wohl nicht">
@@ -18464,9 +18506,10 @@
 </node>
 <node CREATED="1504200743610" ID="ID_1973994759" MODIFIED="1518487921083" TEXT="vorl&#xe4;ufig....">
 <node CREATED="1504200750905" ID="ID_1728645080" MODIFIED="1518487921083" TEXT="gibt es noch eine ZombieTimeline"/>
-<node CREATED="1504200758920" ID="ID_19179662" MODIFIED="1534850802878" TEXT="hab ich schon mal eine InfoBox dazugebaut">
+<node COLOR="#338800" CREATED="1504200758920" FOLDED="true" ID="ID_19179662" MODIFIED="1538838760854" TEXT="hab ich schon mal eine InfoBox dazugebaut">
 <linktarget COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" SOURCE="ID_340215113" STARTARROW="None" STARTINCLINATION="-452;605;"/>
-<node CREATED="1504200878312" ID="ID_1934842950" MODIFIED="1518487921083" TEXT="...f&#xfc;r #1099 DemoGuiRoundtrip">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#435e98" CREATED="1504200878312" ID="ID_1934842950" MODIFIED="1538838347571" TEXT="...f&#xfc;r #1099 DemoGuiRoundtrip">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18479,62 +18522,43 @@
 </html></richcontent>
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1504200907356" ID="ID_1939871955" MODIFIED="1518487921083" TEXT="neues Dock">
+<node CREATED="1504200907356" ID="ID_1939871955" MODIFIED="1538838450291" TEXT="neues Dock">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1504201024836" ID="ID_541911572" MODIFIED="1518487921083" TEXT="brauche Icon"/>
 <node CREATED="1504201506172" ID="ID_739793394" MODIFIED="1518487921083" TEXT="nimm vorerst Asset-Icon">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504201029004" ID="ID_1898190659" MODIFIED="1518487921083" TEXT="als SVG machen...">
-<icon BUILTIN="flag-yellow"/>
-<node CREATED="1504201038435" ID="ID_1569870904" MODIFIED="1518487921083" TEXT="Anleitung">
-<node CREATED="1504201044122" ID="ID_612955500" MODIFIED="1518487921083" TEXT="SVG in data/icons/svg"/>
-<node CREATED="1504201192870" ID="ID_823572488" MODIFIED="1518487921083" TEXT="Dokument-Gr&#xf6;e anscheinend egal">
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      ...wird zwar vom Skript ausgelesen,
-    </p>
-    <p>
-      aber nicht weiterverwendet.
-    </p>
-    <p>
-      Die Icon-Gr&#246;&#223;en ergeben sich aus den Boxes auf 'plate'
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1504201055449" ID="ID_1652674635" MODIFIED="1518487921083" TEXT="braucht &apos;artwork:&apos;-Layer"/>
-<node CREATED="1504201074566" ID="ID_1803123712" MODIFIED="1518487921083" TEXT="braucht Sub-Layer &apos;plate&apos;">
-<node CREATED="1504201085348" ID="ID_971103885" MODIFIED="1518487921083" TEXT="dort bounding-boxes"/>
-<node CREATED="1504201089491" ID="ID_1411697919" MODIFIED="1518487921084" TEXT="deren Gr&#xf6;&#xdf;e in PX ist die Icon-Gr&#xf6;&#xdf;e"/>
-<node CREATED="1504201101314" ID="ID_813225733" MODIFIED="1518487921084" TEXT="brauche 16, 22, 32"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504201029004" ID="ID_1898190659" MODIFIED="1538838744207" TEXT="als SVG machen...">
+<arrowlink COLOR="#8697d2" DESTINATION="ID_1569870904" ENDARROW="Default" ENDINCLINATION="-459;-144;" ID="Arrow_ID_421953450" STARTARROW="None" STARTINCLINATION="-861;94;"/>
+<icon BUILTIN="hourglass"/>
 </node>
 </node>
-</node>
-</node>
-<node CREATED="1534523269133" ID="ID_403796438" MODIFIED="1534523275983" TEXT="interne Struktur">
-<node CREATED="1534523277547" ID="ID_1662503806" MODIFIED="1534523282527" TEXT="FelerLog-Anzeige">
+<node COLOR="#338800" CREATED="1534523269133" ID="ID_403796438" MODIFIED="1538838457405" TEXT="interne Struktur">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1534523277547" ID="ID_1662503806" MODIFIED="1538838460701" TEXT="FelerLog-Anzeige">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1534523283443" ID="ID_329149746" MODIFIED="1534524676311" TEXT="erst bei Bedarf belegen">
 <arrowlink COLOR="#7ca8bc" DESTINATION="ID_1941760302" ENDARROW="Default" ENDINCLINATION="-1967;5936;" ID="Arrow_ID_192358692" STARTARROW="None" STARTINCLINATION="670;0;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534523296448" ID="ID_734584528" MODIFIED="1534523306232" TEXT="zuklappbar">
-<icon BUILTIN="hourglass"/>
+<node COLOR="#338800" CREATED="1534523296448" ID="ID_734584528" MODIFIED="1538838422608" TEXT="zuklappbar">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534523292305" ID="ID_1595061322" MODIFIED="1534523310503" TEXT="Platzhalter">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1534523292305" ID="ID_1595061322" MODIFIED="1538838426589" TEXT="Platzhalter">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538838427984" ID="ID_1386470288" MODIFIED="1538838432888" TEXT="Buttonts">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1534850747192" ID="ID_109802175" MODIFIED="1534850758654" TEXT="vorl&#xe4;ufig per Grid implementieren">
-<icon BUILTIN="flag-yellow"/>
+<node CREATED="1534850747192" ID="ID_109802175" MODIFIED="1538838438202" TEXT="vorl&#xe4;ufig per Grid implementieren">
+<icon BUILTIN="button_cancel"/>
 </node>
 </node>
-<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1534850514830" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor">
+<node CREATED="1504200915915" ID="ID_335470074" MODIFIED="1538838470692" TEXT="sp&#xe4;ter wird das ein nichtmodaler Parameter-Editor">
 <arrowlink DESTINATION="ID_1405249171" ENDARROW="Default" ENDINCLINATION="222;-82;" ID="Arrow_ID_1395046288" STARTARROW="None" STARTINCLINATION="644;0;"/>
+<icon BUILTIN="yes"/>
 </node>
 </node>
 </node>
@@ -18794,9 +18818,9 @@
 </node>
 </node>
 <node CREATED="1477522287316" ID="ID_1942021610" MODIFIED="1518487921084" TEXT="TimelinePanel"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1502390603674" ID="ID_1926586811" MODIFIED="1518487921084" TEXT="#1102 : build a message display box in the UI">
+<node COLOR="#338800" CREATED="1502390603674" ID="ID_1926586811" MODIFIED="1538839841064" TEXT="#1102 : build a message display box in the UI">
 <linktarget COLOR="#8c8bae" DESTINATION="ID_1926586811" ENDARROW="Default" ENDINCLINATION="1456;47;" ID="Arrow_ID_1593124756" SOURCE="ID_125356908" STARTARROW="None" STARTINCLINATION="-839;779;"/>
-<icon BUILTIN="hourglass"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node CREATED="1504833474521" HGAP="39" ID="ID_1439141983" MODIFIED="1518487921084" TEXT="Struktur" VSHIFT="10">
@@ -18937,9 +18961,12 @@
 <icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1533401271538" ID="ID_613065826" MODIFIED="1538263724168" TEXT="erst mal nur eine Nachricht als UI-Notification">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1535892210892" TEXT="#1099 DemoGuiRoundtrip">
+<node COLOR="#338800" CREATED="1533402513829" ID="ID_1456159316" MODIFIED="1538839303541" TEXT="#1099 DemoGuiRoundtrip">
 <arrowlink COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" STARTARROW="None" STARTINCLINATION="418;-44;"/>
-<icon BUILTIN="flag-pink"/>
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1538839326830" ID="ID_1942975878" MODIFIED="1538839342189" TEXT="jetzt retul&#xe4;r &#xfc;ber die Notification facade">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401303142" ID="ID_1338326263" MODIFIED="1533401327708" TEXT="hart gecodeten initialen Diff hochschicken">
@@ -26899,7 +26926,7 @@
 <node CREATED="1485548878292" ID="ID_49934573" MODIFIED="1518487921090" TEXT="Broadcast"/>
 </node>
 </node>
-<node CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1518487921090" TEXT="Core-Services" VSHIFT="2">
+<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1538839405827" TEXT="Core-Services" VSHIFT="2">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -26915,7 +26942,7 @@
 </html></richcontent>
 <arrowlink DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
 <font NAME="SansSerif" SIZE="13"/>
-<icon BUILTIN="prepare"/>
+<icon BUILTIN="go"/>
 <node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1518487921090" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -26934,7 +26961,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1453545968166" ID="ID_399884859" MODIFIED="1518487921090" TEXT="Command-Handler">
+<node CREATED="1453545968166" FOLDED="true" ID="ID_399884859" MODIFIED="1538839448111" TEXT="Command-Handler">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1453546129537" ID="ID_1926242869" MODIFIED="1518487921090" TEXT="empf&#xe4;ngt &quot;act&quot;-Nachrichten">
 <icon BUILTIN="button_ok"/>
@@ -26946,7 +26973,7 @@
 <node CREATED="1453546417098" ID="ID_676713402" MODIFIED="1518487921090" TEXT="DOM vs. compiletime typing">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1453546436455" ID="ID_129001401" MODIFIED="1525124215243" TEXT="double-dispatch">
+<node CREATED="1453546436455" FOLDED="true" ID="ID_129001401" MODIFIED="1538839439898" TEXT="double-dispatch">
 <icon BUILTIN="idea"/>
 <node CREATED="1453546450317" ID="ID_1899026394" MODIFIED="1512926192213" TEXT="Variant-Visitor">
 <icon BUILTIN="button_ok"/>
@@ -27040,7 +27067,7 @@
 <node CREATED="1492205732389" ID="ID_1080697951" MODIFIED="1518487921090" TEXT="wir k&#xf6;nnen stets gleich triggern"/>
 </node>
 <node CREATED="1492205741483" ID="ID_1132272888" MODIFIED="1518487921090" TEXT="Command wird sofort nach dem Binden getriggert"/>
-<node COLOR="#338800" CREATED="1483925280108" HGAP="30" ID="ID_1479669922" MODIFIED="1533303593408" TEXT="Protokoll-Erweiterung" VSHIFT="8">
+<node COLOR="#338800" CREATED="1483925280108" HGAP="30" ID="ID_1479669922" MODIFIED="1538838665321" TEXT="Protokoll-Erweiterung" VSHIFT="8">
 <arrowlink COLOR="#e9ba2d" DESTINATION="ID_242219866" ENDARROW="Default" ENDINCLINATION="-944;1604;" ID="Arrow_ID_1617518648" STARTARROW="None" STARTINCLINATION="3617;-1097;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1483925298713" ID="ID_347702585" MODIFIED="1518487921090" TEXT="Command-Prototyp forken"/>
@@ -27075,7 +27102,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1483927678318" HGAP="25" ID="ID_1324099152" MODIFIED="1538263681166" TEXT="Notification-Facade &#xf6;ffnen" VSHIFT="4">
+<node COLOR="#338800" CREATED="1483927678318" FOLDED="true" HGAP="25" ID="ID_1324099152" MODIFIED="1538839422411" TEXT="Notification-Facade &#xf6;ffnen" VSHIFT="4">
 <arrowlink COLOR="#51517b" DESTINATION="ID_379585622" ENDARROW="Default" ENDINCLINATION="-476;439;" ID="Arrow_ID_1616528570" STARTARROW="Default" STARTINCLINATION="-541;0;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1483927692988" ID="ID_354422174" MODIFIED="1538263617013" TEXT="Lebenszyklus-Fragen verifizieren">
@@ -27092,7 +27119,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1501778430101" ID="ID_489078622" MODIFIED="1531588554277" TEXT="#1098 hand-over to UI thread">
+<node COLOR="#338800" CREATED="1501778430101" FOLDED="true" ID="ID_489078622" MODIFIED="1538839420819" TEXT="#1098 hand-over to UI thread">
 <arrowlink COLOR="#7caaa8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="2513;3565;" ID="Arrow_ID_1832047032" STARTARROW="Default" STARTINCLINATION="3463;134;"/>
 <linktarget COLOR="#6c5f80" DESTINATION="ID_489078622" ENDARROW="Default" ENDINCLINATION="725;-39;" ID="Arrow_ID_485145709" SOURCE="ID_31825421" STARTARROW="None" STARTINCLINATION="1538;-37;"/>
 <icon BUILTIN="button_ok"/>
@@ -27106,7 +27133,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1453546083296" ID="ID_1154674875" MODIFIED="1518487921091" TEXT="Presentation-State-Manager">
+<node CREATED="1453546083296" FOLDED="true" ID="ID_1154674875" MODIFIED="1538839418972" TEXT="Presentation-State-Manager">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1455290707481" ID="ID_551153117" MODIFIED="1518487921091">
 <richcontent TYPE="NODE"><html>
@@ -40547,6 +40574,38 @@
 </node>
 </node>
 </node>
+<node CREATED="1538838573613" ID="ID_1610361741" MODIFIED="1538838575776" TEXT="Graphic">
+<node CREATED="1538838576956" ID="ID_1174319279" MODIFIED="1538838580256" TEXT="SVG-Icons">
+<node CREATED="1504201038435" ID="ID_1569870904" MODIFIED="1538838744207" TEXT="Anleitung">
+<linktarget COLOR="#8697d2" DESTINATION="ID_1569870904" ENDARROW="Default" ENDINCLINATION="-459;-144;" ID="Arrow_ID_421953450" SOURCE="ID_1898190659" STARTARROW="None" STARTINCLINATION="-861;94;"/>
+<node CREATED="1504201044122" ID="ID_612955500" MODIFIED="1518487921083" TEXT="SVG in data/icons/svg"/>
+<node CREATED="1504201192870" ID="ID_823572488" MODIFIED="1538838400312" TEXT="Dokument-Gr&#xf6;&#xdf;e anscheinend egal">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...wird zwar vom Skript ausgelesen,
+    </p>
+    <p>
+      aber nicht weiterverwendet.
+    </p>
+    <p>
+      Die Icon-Gr&#246;&#223;en ergeben sich aus den Boxes auf 'plate'
+    </p>
+  </body>
+</html></richcontent>
+</node>
+<node CREATED="1504201055449" ID="ID_1652674635" MODIFIED="1518487921083" TEXT="braucht &apos;artwork:&apos;-Layer"/>
+<node CREATED="1504201074566" ID="ID_1803123712" MODIFIED="1518487921083" TEXT="braucht Sub-Layer &apos;plate&apos;">
+<node CREATED="1504201085348" ID="ID_971103885" MODIFIED="1518487921083" TEXT="dort bounding-boxes"/>
+<node CREATED="1504201089491" ID="ID_1411697919" MODIFIED="1518487921084" TEXT="deren Gr&#xf6;&#xdf;e in PX ist die Icon-Gr&#xf6;&#xdf;e"/>
+<node CREATED="1504201101314" ID="ID_813225733" MODIFIED="1518487921084" TEXT="brauche 16, 22, 32"/>
+</node>
+</node>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1437693678626" HGAP="117" ID="ID_1536988357" MODIFIED="1522933364911" POSITION="left" TEXT="Doku" VSHIFT="-47">

From 76dd4fb5dc7362dc67d4dfac7c21e5e0d87083c9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 7 Oct 2018 03:44:00 +0200
Subject: [PATCH 135/178] ...tidy.up: prepare for working on the timeline
 display

''a new hope''

This was quite a long way until we're back at the point of
re-building the timeline anew.

Stash the canvas research code to make room for new things to come
---
 research/SConscript                |   9 +-
 research/gtk-canvas-experiment.cpp | 375 +++++++++++++++++++++++++++++
 research/gtk-canvas-experiment.hpp | 165 +++++++++++++
 research/gtk-canvas-main.cpp       |  44 ++++
 src/SConscript                     |   5 +-
 src/common/option.cpp              |   4 +-
 src/gui/panel/timeline-panel.cpp   |   4 +-
 src/gui/panel/timeline-panel.hpp   |   2 +-
 wiki/thinkPad.ichthyo.mm           | 346 +++++++++++++++-----------
 9 files changed, 800 insertions(+), 154 deletions(-)
 create mode 100644 research/gtk-canvas-experiment.cpp
 create mode 100644 research/gtk-canvas-experiment.hpp
 create mode 100644 research/gtk-canvas-main.cpp

diff --git a/research/SConscript b/research/SConscript
index 4df559f6a..5e4b2d481 100644
--- a/research/SConscript
+++ b/research/SConscript
@@ -4,7 +4,7 @@
 ##                Things defined here usuall won't be installed
 ##
 
-Import('env core support_lib')
+Import('env envGtk core support_lib')
 
 
 
@@ -12,9 +12,14 @@ envR = env.Clone()
 envR.Append(CPPPATH='research')
 # envR.Append(CCFLAGS=' -O3 ')
 
+envRGtk = envGtk.Clone()
+envRGtk.Append(CPPPATH='research')
+
 # build additional test and administrative tools....
 experiments = [ envR.Program('try', ['try.cpp'] + core)          #### to try out some feature...
-              , envR.Program('clang-static-init', ['clang-static-init-1.cpp', 'clang-static-init-2.cpp'])  
+              , envR.Program('clang-static-init', ['clang-static-init-1.cpp', 'clang-static-init-2.cpp'])
+              
+              , envRGtk.Program('gtk-canvas-experiment', ['gtk-canvas-experiment.cpp', 'gtk-canvas-main.cpp'] + core)
               ]
 
 #
diff --git a/research/gtk-canvas-experiment.cpp b/research/gtk-canvas-experiment.cpp
new file mode 100644
index 000000000..272ffe9ef
--- /dev/null
+++ b/research/gtk-canvas-experiment.cpp
@@ -0,0 +1,375 @@
+/*
+  GtkCanvasExperiment  -  Explore capabilities of the GTK canvas widget
+
+  Copyright (C)         Lumiera.org
+    2016,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+
+/** @file gtk-canvas-experiment.cpp
+ ** Implementation of gtk canvas experiments.
+ ** 
+ ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
+ ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
+ ** @see timeline-widget.hpp
+ ** 
+ */
+
+
+#include "gtk-canvas-experiment.hpp"
+
+//#include "gui/workspace/workspace-window.hpp"
+#include "lib/format-string.hpp"
+#include "lib/format-cout.hpp"
+
+//#include "lib/util.hpp"
+#include <algorithm>
+#include <cstdlib>
+#include <string>
+
+
+
+using util::_Fmt;
+//using std::shared_ptr;
+//using std::weak_ptr;
+//using util::contains;
+using Gtk::Widget;
+using sigc::mem_fun;
+using sigc::ptr_fun;
+using std::string;
+using std::rand;
+using std::max;
+
+
+namespace gui {
+namespace panel {
+    
+  
+  
+  TimelinePanel::TimelinePanel ()
+    : Box{}
+    , twoParts_(Gtk::ORIENTATION_VERTICAL)
+    , buttons_()
+    , frame_("Gtk::Layout Experiments")
+    , scroller_()
+    , canvas_()
+    {
+      twoParts_.pack_start(buttons_, Gtk::PACK_SHRINK);
+      twoParts_.pack_start(frame_);
+      
+      buttons_.set_layout(Gtk::BUTTONBOX_START);
+      
+      // buttons to trigger experiments
+      button_1_.set_label("_place");
+      button_1_.set_use_underline();
+      button_1_.set_tooltip_markup("<b>Experiment 1</b>:\nplace new child widget\nat random position on the canvas");
+      button_1_.signal_clicked().connect(
+                  mem_fun(*this, &TimelinePanel::experiment_1));
+      buttons_.add(button_1_);
+      
+      button_2_.set_label("_move");
+      button_2_.set_use_underline();
+      button_2_.set_tooltip_markup("<b>Experiment 2</b>:\nmove all child widgets randomly");
+      button_2_.signal_clicked().connect(
+                  mem_fun(*this, &TimelinePanel::experiment_2));
+      buttons_.add(button_2_);
+      
+      button_3_.set_label("a_lign");
+      button_3_.set_use_underline();
+      button_3_.set_tooltip_markup("<b>Experiment 3</b>:\nalign all child widgets in a row\nwith silight random vertical offset");
+      button_3_.signal_clicked().connect(
+                  mem_fun(*this, &TimelinePanel::experiment_3));
+      buttons_.add(button_3_);
+      
+      button_4_.set_label("_grow");
+      button_4_.set_use_underline();
+      button_4_.set_tooltip_markup("<b>Experiment 4</b>:\nextend arbitrary child widget's text");
+      button_4_.signal_clicked().connect(
+                  mem_fun(*this, &TimelinePanel::experiment_4));
+      buttons_.add(button_4_);
+      
+      button_5_.set_label("_kill");
+      button_5_.set_use_underline();
+      button_5_.set_tooltip_markup("<b>Experiment 5</b>:\nkill arbitrary child widget");
+      button_5_.signal_clicked().connect(
+                  mem_fun(*this, &TimelinePanel::experiment_5));
+      buttons_.add(button_5_);
+      
+      toggleDraw_.set_label("draw");
+      toggleDraw_.signal_clicked().connect(
+                  [this]() {
+                             canvas_.enableDraw (this->toggleDraw_.get_active());
+                           });
+      buttons_.add(toggleDraw_);
+      //(End)buttons...
+      
+      frame_.add(scroller_);
+      frame_.set_border_width(5);
+      
+      scroller_.set_shadow_type(Gtk::SHADOW_NONE);
+      scroller_.set_border_width(10);
+      scroller_.add(canvas_);
+      
+      canvas_.adjustSize();
+      
+      // show everything....
+      this->add(twoParts_);
+      this->show_all();
+    }
+  
+  const char*
+  TimelinePanel::getTitle()
+  {
+    return _("Timeline");
+  }
+  
+  const gchar*
+  TimelinePanel::getStockID()
+  {
+    return "panel_timeline";
+  }
+  
+  
+  
+  void
+  TimelinePanel::experiment_1()
+  {
+    frame_.set_label("Experiment 1... PLACE");
+    
+    ChildEx* chld = makeChld();
+    childz_.push_back(chld);
+    uint x = rand() % 1000;
+    uint y = rand() % 500;
+    canvas_.put(*chld, x, y);
+    chld->show();
+    canvas_.adjustSize();
+  }
+  
+  
+  void
+  TimelinePanel::experiment_2()
+  {
+    frame_.set_label("Experiment 2... MOVE");
+    for (Widget* chld : childz_)
+      {
+        uint x = canvas_.child_property_x(*chld);
+        uint y = canvas_.child_property_y(*chld);
+        int deltaX = -20 + rand() % 41;
+        int deltaY = -15 + rand() % 31;
+        x = uint(max (0, int(x) + deltaX));
+        y = uint(max (0, int(y) + deltaY));
+        
+        canvas_.move (*chld, x,y);
+      }
+    canvas_.adjustSize();
+  }
+  
+  
+  void
+  TimelinePanel::experiment_3()
+  {
+    frame_.set_label("Experiment 3... ALIGN");
+    uint pos=0;
+    for (Widget* chld : childz_)
+      {
+        uint y = rand() % 30;
+        canvas_.move (*chld, pos, y);
+        
+        int width = chld->get_allocated_width();
+        pos += 0.6 * width;
+      }
+    canvas_.adjustSize();
+  }
+  
+  
+  void
+  TimelinePanel::experiment_4()
+  {
+    frame_.set_label("Experiment 4... GROW");
+    uint selector = rand() % childz_.size();
+    ChildEx& toGrow = *childz_[selector];
+    toGrow.set_label ("***"+toGrow.get_label()+"***");
+  }
+  
+  
+  void
+  TimelinePanel::experiment_5()
+  {
+    frame_.set_label("Experiment 5... KILL");
+    uint killPos = rand() % childz_.size();
+    ChildV::iterator killThat(&childz_[killPos]);
+    ChildEx* victim = *killThat;
+    childz_.erase (killThat);
+    canvas_.remove (*victim);
+    delete victim;
+  }
+  
+  
+  void
+  Canvas::enableDraw (bool yes)
+  {
+    shallDraw_ = yes;
+    
+    // force redrawing of the visible area...
+    auto win = get_window();
+    if (win)
+      {
+        int w = get_allocation().get_width();
+        int h = get_allocation().get_height();
+        Gdk::Rectangle rect{0, 0, w, h};
+        win->invalidate_rect(rect, false);
+      }
+  }
+  
+  
+  
+  void
+  Canvas::adjustSize()
+  {
+    recalcExtension_ = true;
+  }
+  
+  void
+  Canvas::determineExtension()
+  {
+      if (not recalcExtension_) return;
+      
+      uint extH=20, extV=20;
+      Gtk::Container::ForeachSlot callback
+        = [&](Gtk::Widget& chld)
+                {
+                  auto alloc = chld.get_allocation();
+                  uint x = alloc.get_x();
+                  uint y = alloc.get_y();
+                  x += alloc.get_width();
+                  y += alloc.get_height();
+                  extH = max (extH, x);
+                  extV = max (extV, y);
+                };
+      foreach(callback);
+      recalcExtension_ = false;
+      set_size (extH, extV);
+  }
+  
+  
+  bool
+  Canvas::on_draw(Cairo::RefPtr<Cairo::Context> const& cox)
+  {
+    if (shallDraw_)
+      {
+        uint extH, extV;
+        determineExtension();
+        get_size (extH, extV);
+        
+        auto adjH = get_hadjustment();
+        auto adjV = get_vadjustment();
+        double offH = adjH->get_value();
+        double offV = adjV->get_value();
+        
+        cox->save();
+        cox->translate(-offH, -offV);
+        
+        // draw red diagonal line
+        cox->set_source_rgb(0.8, 0.0, 0.0);
+        cox->set_line_width (10.0);
+        cox->move_to(0, 0);
+        cox->line_to(extH, extV);
+        cox->stroke();
+        cox->restore();
+        
+        // cause child widgets to be redrawn
+        bool event_is_handled = Gtk::Layout::on_draw(cox);
+        
+        // any drawing which follows happens on top of child widgets...
+        cox->save();
+        cox->translate(-offH, -offV);
+        
+        cox->set_source_rgb(0.2, 0.4, 0.9);
+        cox->set_line_width (2.0);
+        cox->rectangle(0,0, extH, extV);
+        cox->stroke();
+        cox->restore();
+        
+        return event_is_handled;
+      }
+    else
+      return Gtk::Layout::on_draw(cox);
+  }
+
+  
+  /* === Support for Investigation === */
+  
+  namespace {
+    _Fmt childID("Chld-%02d");
+    
+    int instanceCnt = 0;
+  }
+  
+  
+  uint ChildEx::childNo = 0;
+  
+  
+  ChildEx::ChildEx()
+    : Gtk::Button(string (childID % childNo++))
+    {
+      ++instanceCnt;
+    }
+  
+  
+  void
+  ChildEx::on_clicked()
+  {
+    cout << "|=="<<get_label()<<endl;
+  }
+  
+  
+  ChildEx*
+  TimelinePanel::makeChld()
+  {
+    return Gtk::manage(new ChildEx);
+  }
+
+  
+  ////////////////////////////////////////////////////////////////////TICKET #1020 : verification code for instance management
+  ChildEx::~ChildEx()
+    {
+      --instanceCnt;
+      if (instanceCnt > 0)
+        cout << "  ↯↯  still "<<instanceCnt<<" children to kill..."<<endl;
+      else
+      if (instanceCnt == 0)
+        cout << "+++ Success: all children are dead..."<<endl;
+      else
+        cout << "### ALARM ###"<<endl
+             << "instanceCnt == "<<instanceCnt <<endl;
+    }
+  
+  void
+  __verifyDeadChildren()
+    {
+      if (instanceCnt == 0)
+        cout << "+++ Success: all children are dead..."<<endl;
+      else
+        cout << "### ALARM ###"<<endl
+             << "instanceCnt == "<<instanceCnt <<endl;
+    }
+  ////////////////////////////////////////////////////////////////////TICKET #1020 : verification code for instance management
+  
+  
+  
+}}   // namespace gui::panel
diff --git a/research/gtk-canvas-experiment.hpp b/research/gtk-canvas-experiment.hpp
new file mode 100644
index 000000000..565ff6635
--- /dev/null
+++ b/research/gtk-canvas-experiment.hpp
@@ -0,0 +1,165 @@
+/*
+  GTK-CANVAS-EXPERIMENT.hpp  -  Explore capabilities of the GTK canvas widget            
+
+  Copyright (C)         Lumiera.org
+    2016,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file gtk-canvas-experiment.hpp
+ ** A custom widget using a canvas to draw and to place widgets.
+ ** 
+ ** ## planned design 2/2017
+ ** The architecture of the UI is in a state of transition right now, working towards the goal
+ ** of interconnected layers and an operative session and engine. Within the new control structure
+ ** about to be built, there is an UI top-level circle of managing entities to handle global concerns
+ ** and actions. The ctrl::InteractionDirector incorporates the role of _model root_ and thus manages
+ ** a collection of timelines. The timeline panel exposes this collection and allows to view and
+ ** interact with one of the given timelines. The build-up of the timeline display and thus the
+ ** initiative to expose a timeline comes from the interaction director -- but as usual with
+ ** graphical user interfaces, any user interaction after this point is handled autonomously
+ ** by the gui::timeline::TimelineWidget and gui::timeline::TimelineController
+ ** 
+ ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
+ ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
+ */
+
+
+#ifndef RESEARCH_GTK_CANVAS_EXPERIMENT_H
+#define RESEARCH_GTK_CANVAS_EXPERIMENT_H
+
+#include "gui/gtk-base.hpp"
+
+//#include <memory>
+#include <vector>
+
+
+
+namespace gui  {
+namespace model{
+    class Sequence;
+  }
+namespace panel {
+  
+//using std::shared_ptr;
+  
+  /**
+   * "experimental" child widget for investigation of Gtk::Layout
+   */
+  class ChildEx
+    : public Gtk::Button
+    {
+      static uint childNo;
+      
+    public:
+      ChildEx();
+     ~ChildEx();
+      
+    private:
+      void on_clicked()  override;
+    };
+  
+  void __verifyDeadChildren();
+  
+  
+  
+  /**
+   * "experimental" custom canvas, based on Gtk::Layout.
+   * In addition this customised widget supports direct drawing
+   */
+  class Canvas
+    : public Gtk::Layout
+    {
+      bool shallDraw_;
+      bool recalcExtension_ = false;
+      
+    public:
+      void enableDraw (bool);
+      void adjustSize();
+      
+    private:
+      virtual bool on_draw (Cairo::RefPtr<Cairo::Context> const&)  override;
+      
+      void determineExtension();
+    };
+  
+  
+  
+  /**
+   * Dockable panel to hold timeline widget(s).
+   * @todo build the actual implementation, after finishing the investigation
+   * 
+   * ## Investigation of gtk::GtkLayout
+   * As of 10/2016, we start this task with an exploration of GTK behaviour
+   * 
+   * \par Plan of investigation
+   *  1. place some simple widgets (Buttons) ✔
+   *  2. learn how to draw ✔
+   *  3. place a huge number of widgets, to scrutinise scrolling and performance
+   *  4. place widgets overlapping and irregularly, beyond the scrollable area ✔
+   *  5. bind signals to those widgets, to verify event dispatching ✔
+   *  6. bind some further signal(s) to the ~GtkLayout container
+   *  7. hide and re-show a partially and a totally overlapped widget
+   *  8. find a way to move a widget ✔ and delete arbitrary widgets ✔
+   *  9. expand an existing widget (text change) ✔
+   *  10. build a custom "clip" widget
+   *  11. retrofit all preceding tests to use this "clip" widget
+   */
+  class TimelinePanel
+    : public Gtk::Box
+    {
+    public:
+      /**
+       * @param panel_manager The owner panel manager widget.
+       * @param dock_item The GdlDockItem that will host this panel.
+       */
+      TimelinePanel();
+      
+      
+      static const char* getTitle();
+      static const gchar* getStockID();
+      
+      
+    private:
+      Gtk::Box twoParts_;
+      Gtk::ButtonBox buttons_;
+      Gtk::Button button_1_;
+      Gtk::Button button_2_;
+      Gtk::Button button_3_;
+      Gtk::Button button_4_;
+      Gtk::Button button_5_;
+      Gtk::CheckButton toggleDraw_;
+      Gtk::Frame frame_;
+      Gtk::ScrolledWindow scroller_;
+      Canvas canvas_;
+      
+      ChildEx* makeChld();
+      
+      using ChildV = std::vector<ChildEx*>;
+      ChildV childz_;
+      
+      void experiment_1();
+      void experiment_2();
+      void experiment_3();
+      void experiment_4();
+      void experiment_5();
+    };
+  
+  
+}}// namespace gui::panel
+#endif /*RESEARCH_GTK_CANVAS_EXPERIMENT_H*/
diff --git a/research/gtk-canvas-main.cpp b/research/gtk-canvas-main.cpp
new file mode 100644
index 000000000..db0dce685
--- /dev/null
+++ b/research/gtk-canvas-main.cpp
@@ -0,0 +1,44 @@
+/*
+  gtk-canvas-main.cpp  -  demo application to explore the abilities of Gtk::Canvas
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+/** @file gtk-canvas-main.cpp
+ ** Simple GTK Application frame to explore canvas handling.
+ */
+
+
+#include "gui/gtk-base.hpp"
+#include "gtk-canvas-experiment.hpp"
+#include "lib/error.hpp"
+
+
+namespace {
+}
+
+
+
+int
+main (int argc, const char* argv[])
+{
+  NOTICE (main, "*** GTK-Canvas Experiment ***");
+  
+  return 0;
+}
diff --git a/src/SConscript b/src/SConscript
index b21a72d23..34cccabb0 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -38,13 +38,12 @@ plugins = [] # currently none
 # the Lumiera GTK GUI
 envGtk = env.Clone()
 envGtk.mergeConf(['gtkmm-3.0','sigc++-2.0','gthread-2.0','cairomm-1.0','gdl','xv','x11','xext','sm'])
-envGtk.Append(LIBS=core)
 
-guimodule = envGtk.LumieraPlugin('gtk_gui', srcSubtree('gui'), install=True)
+guimodule = envGtk.LumieraPlugin('gtk_gui', srcSubtree('gui') + core, install=True)
 gui       = ( guimodule
             + icons
             + [env.GuiResource(f) for f in env.Glob('gui/*.css')]
             )
 
 
-Export('lumiera core core_lib app_lib backend_lib support_lib plugins guimodule gui')
+Export('lumiera core core_lib app_lib backend_lib support_lib plugins envGtk guimodule gui')
diff --git a/src/common/option.cpp b/src/common/option.cpp
index ce59d986b..268bfa63b 100644
--- a/src/common/option.cpp
+++ b/src/common/option.cpp
@@ -56,7 +56,7 @@ namespace lumiera {
    *  @todo describe the actual options
    */
   Option::Option (lib::Cmdline& cmdline)
-    : syntax("Lumiera, the non linear video editor. Supported parameters"),
+    : syntax("Lumiera, the non linear video editor.\nSupported parameters"),
       parameters()
     {
       syntax.add_options()
@@ -64,7 +64,7 @@ namespace lumiera {
         ("session,f",   op::value<string>(),
                         "session file to load (UNIMPLEMENTED)")
         ("script,s",    op::value<VectS>(),
-                        "execute the given LUA script (UNIMPLEMENTED)")
+                        "execute the given script (UNIMPLEMENTED)")
         ("headless",    op::bool_switch(),
                         "start without GUI")
         ("port,p",      op::value<int>(),
diff --git a/src/gui/panel/timeline-panel.cpp b/src/gui/panel/timeline-panel.cpp
index 698e8b344..462148208 100644
--- a/src/gui/panel/timeline-panel.cpp
+++ b/src/gui/panel/timeline-panel.cpp
@@ -25,7 +25,7 @@
  ** Implementation of the dockable panel to hold the main timeline display.
  ** 
  ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
- ** @todo build a new timeline widget, connected to the UI-Bus
+ ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
  ** @see timeline-widget.hpp
  ** 
  */
@@ -54,8 +54,6 @@ using Gtk::Widget;
 using sigc::mem_fun;
 using sigc::ptr_fun;
 using std::string;
-using std::cout;
-using std::endl;
 using std::rand;
 using std::max;
 
diff --git a/src/gui/panel/timeline-panel.hpp b/src/gui/panel/timeline-panel.hpp
index df1fdc366..e93bdddcf 100644
--- a/src/gui/panel/timeline-panel.hpp
+++ b/src/gui/panel/timeline-panel.hpp
@@ -36,7 +36,7 @@
  ** by the gui::timeline::TimelineWidget and gui::timeline::TimelineController
  ** 
  ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
- ** @todo build a new timeline widget, connected to the UI-Bus
+ ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
  */
 
 
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7f9f9ecc6..30f3dc6c2 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5774,8 +5774,9 @@
 <node CREATED="1493846135327" ID="ID_832439809" MODIFIED="1518487921060" TEXT="initialisiert und startet Backbone"/>
 <node CREATED="1485463537111" ID="ID_929585985" MODIFIED="1518487921060" TEXT="wird nie selber direkt angesprochen"/>
 </node>
-<node CREATED="1485126457025" ID="ID_1698853761" MODIFIED="1518487921060" TEXT="ctrl::UiManager">
+<node COLOR="#435e98" CREATED="1485126457025" ID="ID_1698853761" MODIFIED="1538872043941" TEXT="ctrl::UiManager">
 <linktarget COLOR="#667b93" DESTINATION="ID_1698853761" ENDARROW="Default" ENDINCLINATION="19;-86;" ID="Arrow_ID_1952755524" SOURCE="ID_40172420" STARTARROW="None" STARTINCLINATION="-290;0;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1485454242368" ID="ID_482639947" MODIFIED="1518487921060" TEXT="Hub f&#xfc;r Framework">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
@@ -5864,7 +5865,7 @@
 <font NAME="SansSerif" SIZE="15"/>
 <icon BUILTIN="idea"/>
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485549049388" ID="ID_530209145" MODIFIED="1518487921060" TEXT="Problem: Aktionen binden">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485549049388" FOLDED="true" ID="ID_530209145" MODIFIED="1538872130122" TEXT="Problem: Aktionen binden">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_530209145" ENDARROW="Default" ENDINCLINATION="-17;-195;" ID="Arrow_ID_626063593" SOURCE="ID_1022779645" STARTARROW="None" STARTINCLINATION="9;270;"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1485549075929" ID="ID_1887127861" MODIFIED="1518487921060" TEXT="spezifische Aktionen">
@@ -5885,7 +5886,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1485902627783" HGAP="42" ID="ID_88029282" MODIFIED="1518487921060" VSHIFT="-13">
+<node CREATED="1485902627783" FOLDED="true" HGAP="42" ID="ID_88029282" MODIFIED="1538872026506" VSHIFT="-13">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -6007,7 +6008,8 @@
 <node CREATED="1486063831790" ID="ID_328966967" MODIFIED="1518487921061" TEXT="mu&#xdf; blo&#xdf; am Leben bleiben"/>
 <node CREATED="1486063841293" ID="ID_1675242982" MODIFIED="1518487921061" TEXT="hat nach Init nichts mehr zu tun"/>
 </node>
-<node CREATED="1486063858283" HGAP="42" ID="ID_130675776" MODIFIED="1518487921061" TEXT="ist Impl-Detail" VSHIFT="5">
+<node COLOR="#435e98" CREATED="1486063858283" FOLDED="true" HGAP="42" ID="ID_130675776" MODIFIED="1538871975944" TEXT="ist Impl-Detail" VSHIFT="5">
+<icon BUILTIN="yes"/>
 <node CREATED="1486063886407" ID="ID_1294385692" MODIFIED="1518487921061" TEXT="sollte aus den weitverbreiteten Header-Includes raus"/>
 <node CREATED="1486063911188" ID="ID_1391435276" MODIFIED="1518487921061" TEXT="gegenw&#xe4;rtig Member im UiManager">
 <richcontent TYPE="NOTE"><html>
@@ -6024,8 +6026,9 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1486063950103" ID="ID_57649689" MODIFIED="1518487921061" TEXT="zwei Modelle">
-<node CREATED="1486063954062" ID="ID_1174765379" MODIFIED="1518487921061" TEXT="Actions wird insgesamt ein PImpl">
+<node COLOR="#435e98" CREATED="1486063950103" ID="ID_57649689" MODIFIED="1538871966591" TEXT="zwei Modelle">
+<icon BUILTIN="info"/>
+<node CREATED="1486063954062" FOLDED="true" ID="ID_1174765379" MODIFIED="1538871960993" TEXT="Actions wird insgesamt ein PImpl">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1486064137014" ID="ID_926465478" MODIFIED="1518487921061" TEXT="ist einfach umzusetzen"/>
 <node CREATED="1486064142037" ID="ID_836065841" MODIFIED="1518487921061" TEXT="f&#xfc;hrt zu einer doppelten Indirektion"/>
@@ -6037,7 +6040,7 @@
 </node>
 <node CREATED="1486064454451" ID="ID_744832983" MODIFIED="1518487921061" TEXT="Aber genau diese Vermischun macht das Registrieren einfach"/>
 </node>
-<node CREATED="1486063968868" ID="ID_830826934" MODIFIED="1518487921061" TEXT="Actions hat einen ActionGroup-PImpl">
+<node CREATED="1486063968868" FOLDED="true" ID="ID_830826934" MODIFIED="1538871959650" TEXT="Actions hat einen ActionGroup-PImpl">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1486063991065" ID="ID_1575759747" MODIFIED="1518487921061" TEXT="man kann von ActionGroup erben">
 <icon BUILTIN="idea"/>
@@ -6096,7 +6099,7 @@
 <node CREATED="1487039125984" ID="ID_622974182" MODIFIED="1518487921061" TEXT="wei&#xdf;, welche Aktion wohin zu delegieren ist"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1488422770096" HGAP="56" ID="ID_53463593" MODIFIED="1518487921061" TEXT="#1085 solve setup of top-level menu actions" VSHIFT="-17">
+<node COLOR="#338800" CREATED="1488422770096" FOLDED="true" HGAP="56" ID="ID_53463593" MODIFIED="1538872005021" TEXT="#1085 solve setup of top-level menu actions" VSHIFT="-17">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1488423688763" ID="ID_1950800234" MODIFIED="1518487921061" TEXT="UI-Komponenten">
 <node CREATED="1488423702977" ID="ID_292894978" MODIFIED="1518487921061" TEXT="TimelinePane">
@@ -6163,7 +6166,8 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1488423720319" ID="ID_1455353650" MODIFIED="1518487921061" TEXT="Sequence-Aktionen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1488423720319" FOLDED="true" ID="ID_1455353650" MODIFIED="1538871941926" TEXT="Sequence-Aktionen">
+<icon BUILTIN="hourglass"/>
 <node CREATED="1489461756655" ID="ID_1625364312" MODIFIED="1518487921061" TEXT="neue Sequenz">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1489461773213" ID="ID_344390825" MODIFIED="1518487921061" TEXT="als Treiber verwenden">
@@ -6316,7 +6320,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1485898796393" ID="ID_1217726538" MODIFIED="1518487921062" TEXT="#1069 how to refer to the current window">
+<node COLOR="#338800" CREATED="1485898796393" FOLDED="true" ID="ID_1217726538" MODIFIED="1538872003316" TEXT="#1069 how to refer to the current window">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1492965823743" ID="ID_729520839" MODIFIED="1518487921062" TEXT="grunds&#xe4;tzlich gel&#xf6;st">
 <icon BUILTIN="button_ok"/>
@@ -6378,15 +6382,16 @@
 </node>
 </node>
 </node>
-<node CREATED="1485909456513" HGAP="55" ID="ID_576215675" MODIFIED="1518487921062" TEXT="top-level-Verdrahtung" VSHIFT="1">
+<node COLOR="#338800" CREATED="1485909456513" FOLDED="true" HGAP="55" ID="ID_576215675" MODIFIED="1538871912472" TEXT="top-level-Verdrahtung" VSHIFT="1">
 <arrowlink COLOR="#8c95b2" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="138;-548;" ID="Arrow_ID_1284182756" STARTARROW="None" STARTINCLINATION="883;143;"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1485909560027" ID="ID_1949656657" MODIFIED="1518487921062" TEXT="baut den UI-Rahen auf"/>
 <node CREATED="1485909491412" ID="ID_1205077540" MODIFIED="1518487921062" TEXT="macht die Applikation betriebsbereit">
 <icon BUILTIN="messagebox_warning"/>
 </node>
 <node CREATED="1486942467620" HGAP="151" ID="ID_1761000392" MODIFIED="1518487921062" TEXT="Alternativen" VSHIFT="14">
 <icon BUILTIN="help"/>
-<node CREATED="1486942493208" ID="ID_805305597" MODIFIED="1518487921062" TEXT="alles via InteractionDirector">
+<node CREATED="1486942493208" FOLDED="true" ID="ID_805305597" MODIFIED="1538871904985" TEXT="alles via InteractionDirector">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1486944032334" ID="ID_1959218653" MODIFIED="1518487921062" TEXT="er macht ohnehin fast alles">
 <icon BUILTIN="smily_bad"/>
@@ -6417,7 +6422,7 @@
 <node CREATED="1487034078974" ID="ID_796487731" MODIFIED="1518487921062" TEXT="verletzt das single responsibility pattern"/>
 </node>
 </node>
-<node CREATED="1486942523724" ID="ID_843953045" MODIFIED="1518487921062" TEXT="globalen Kontext einf&#xfc;hren">
+<node CREATED="1486942523724" FOLDED="true" ID="ID_843953045" MODIFIED="1538871902547" TEXT="globalen Kontext einf&#xfc;hren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1486942614400" ID="ID_872912875" MODIFIED="1518487921062" TEXT="Action-Definition &quot;wei&#xdf;&quot; wer das konkret machen kann"/>
 <node CREATED="1486943522965" ID="ID_244569580" MODIFIED="1518487921062" TEXT="konkret...">
@@ -6468,8 +6473,10 @@
 <node CREATED="1487034180712" ID="ID_1371598611" MODIFIED="1518487921063" TEXT="und jedes genau wei&#xdf;, was die andern k&#xf6;nnen"/>
 </node>
 </node>
-<node CREATED="1504393149140" HGAP="16" ID="ID_48107354" MODIFIED="1523022936584" TEXT="Addressierung" VSHIFT="27">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1504393149140" FOLDED="true" HGAP="38" ID="ID_48107354" MODIFIED="1538872134971" TEXT="Addressierung" VSHIFT="55">
 <arrowlink COLOR="#4f5d91" DESTINATION="ID_974158229" ENDARROW="Default" ENDINCLINATION="383;-2505;" ID="Arrow_ID_1832380552" STARTARROW="None" STARTINCLINATION="-597;127;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<icon BUILTIN="pencil"/>
 <node CREATED="1504393160466" ID="ID_450547493" MODIFIED="1518487921063" TEXT="globales ID-Schema">
 <node CREATED="1504393168946" ID="ID_390425361" MODIFIED="1518487921063" TEXT="Model-Typen"/>
 <node CREATED="1504393177712" ID="ID_1686403667" MODIFIED="1518487921063" TEXT="View-Deskriptor">
@@ -6491,7 +6498,7 @@
 <node CREATED="1504833695107" ID="ID_1686159038" MODIFIED="1518487921063" TEXT="in einem Panel zu finden"/>
 </node>
 </node>
-<node CREATED="1519356802243" HGAP="39" ID="ID_1415516084" MODIFIED="1519356884205" TEXT="Komponenten-Zugriff" VSHIFT="16">
+<node CREATED="1519356802243" HGAP="67" ID="ID_1415516084" MODIFIED="1538871866274" TEXT="Komponenten-Zugriff" VSHIFT="12">
 <node CREATED="1504393221051" ID="ID_938886823" MODIFIED="1518487921063" TEXT="wie bekommt man eine Objekt-ID?">
 <linktarget COLOR="#8e2a4d" DESTINATION="ID_938886823" ENDARROW="Default" ENDINCLINATION="-367;31;" ID="Arrow_ID_265571961" SOURCE="ID_1909730752" STARTARROW="None" STARTINCLINATION="-367;31;"/>
 </node>
@@ -6515,7 +6522,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1506175115772" HGAP="318" ID="ID_1448696607" MODIFIED="1525124214741" VSHIFT="64">
+<node CREATED="1506175115772" FOLDED="true" HGAP="318" ID="ID_1448696607" MODIFIED="1538871818377" VSHIFT="64">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -6700,7 +6707,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504393295097" ID="ID_65709251" MODIFIED="1518487921063" TEXT="wie erreicht man einen ComponentView?">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504393295097" FOLDED="true" ID="ID_65709251" MODIFIED="1538871827278" TEXT="wie erreicht man einen ComponentView?">
 <arrowlink COLOR="#524f7b" DESTINATION="ID_385011645" ENDARROW="Default" ENDINCLINATION="353;-22;" ID="Arrow_ID_186523581" STARTARROW="None" STARTINCLINATION="1270;350;"/>
 <linktarget COLOR="#717686" DESTINATION="ID_65709251" ENDARROW="Default" ENDINCLINATION="-8;-209;" ID="Arrow_ID_1510990213" SOURCE="ID_173722644" STARTARROW="None" STARTINCLINATION="92;95;"/>
 <icon BUILTIN="pencil"/>
@@ -6788,9 +6795,9 @@
 </node>
 </node>
 </node>
-<node CREATED="1506175078553" HGAP="97" ID="ID_1154523344" MODIFIED="1518487921063" TEXT="Implementierung" VSHIFT="29">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506175078553" FOLDED="true" HGAP="97" ID="ID_1154523344" MODIFIED="1538871806881" TEXT="Implementierung" VSHIFT="29">
 <icon BUILTIN="pencil"/>
-<node CREATED="1506262853956" HGAP="-86" ID="ID_652224508" MODIFIED="1518487921063" TEXT="Design-Fragen" VSHIFT="-3">
+<node CREATED="1506262853956" FOLDED="true" HGAP="-86" ID="ID_652224508" MODIFIED="1538871766064" TEXT="Design-Fragen" VSHIFT="-3">
 <node CREATED="1506262880944" ID="ID_1951800292" MODIFIED="1518487921063" TEXT="Mutability">
 <node CREATED="1506262901774" ID="ID_732818888" MODIFIED="1518487921063" TEXT="immutable == gut?">
 <icon BUILTIN="help"/>
@@ -7201,7 +7208,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1506181073556" ID="ID_1878859300" MODIFIED="1535892564742" TEXT="Resolver">
+<node COLOR="#338800" CREATED="1506181073556" FOLDED="true" ID="ID_1878859300" MODIFIED="1538871755562" TEXT="Resolver">
 <linktarget COLOR="#65759f" DESTINATION="ID_1878859300" ENDARROW="Default" ENDINCLINATION="-439;-594;" ID="Arrow_ID_68163828" SOURCE="ID_610939878" STARTARROW="None" STARTINCLINATION="307;351;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1506181794428" ID="ID_333406817" MODIFIED="1518487921064" TEXT="Setup">
@@ -7613,7 +7620,7 @@
 </node>
 <node COLOR="#338800" CREATED="1508539195258" ID="ID_1044429952" MODIFIED="1525124214766" TEXT="cover">
 <icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1508540823475" ID="ID_793410656" MODIFIED="1535892564747" TEXT="path-resolution ausf&#xfc;hren">
+<node COLOR="#338800" CREATED="1508540823475" FOLDED="true" ID="ID_793410656" MODIFIED="1538869129468" TEXT="path-resolution ausf&#xfc;hren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1509475490890" ID="ID_1616720086" MODIFIED="1518487921065" TEXT="rekursiv"/>
 <node CREATED="1509475495057" ID="ID_27489504" MODIFIED="1518487921065" TEXT="Aufruf mit ResolutionState"/>
@@ -7676,7 +7683,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1509495634766" ID="ID_422767906" MODIFIED="1535892564749" TEXT="Zusammenspiel">
+<node CREATED="1509495634766" FOLDED="true" ID="ID_422767906" MODIFIED="1538869117623" TEXT="Zusammenspiel">
 <icon BUILTIN="info"/>
 <node CREATED="1509491594115" FOLDED="true" ID="ID_214903834" MODIFIED="1533608415788" TEXT="was tr&#xe4;gt LocationQuery bei?">
 <icon BUILTIN="help"/>
@@ -8262,7 +8269,7 @@
 <node CREATED="1512278456672" ID="ID_488770369" MODIFIED="1512278462388" TEXT="wird in jedem Schritt gestrippt"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941463562" FOLDED="true" ID="ID_845080696" MODIFIED="1533608415412" TEXT="TreeExplorer">
+<node COLOR="#338800" CREATED="1510941463562" FOLDED="true" ID="ID_845080696" MODIFIED="1538868265914" TEXT="TreeExplorer">
 <linktarget COLOR="#406878" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-88;-61;" ID="Arrow_ID_409690433" SOURCE="ID_1160853986" STARTARROW="None" STARTINCLINATION="-374;6;"/>
 <linktarget COLOR="#585e9d" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-23;161;" ID="Arrow_ID_402051988" SOURCE="ID_1359727169" STARTARROW="None" STARTINCLINATION="138;6;"/>
 <linktarget COLOR="#83dfc7" DESTINATION="ID_845080696" ENDARROW="Default" ENDINCLINATION="-1109;3887;" ID="Arrow_ID_1645152965" SOURCE="ID_30857289" STARTARROW="None" STARTINCLINATION="2051;-176;"/>
@@ -12207,7 +12214,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506175097367" ID="ID_1442345755" MODIFIED="1523022775958" TEXT="ViewSpec-DSL">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506175097367" FOLDED="true" ID="ID_1442345755" MODIFIED="1538871791411" TEXT="ViewSpec-DSL">
 <arrowlink COLOR="#b45c5a" DESTINATION="ID_686917529" ENDARROW="Default" ENDINCLINATION="-468;-196;" ID="Arrow_ID_1955094318" STARTARROW="None" STARTINCLINATION="360;85;"/>
 <linktarget COLOR="#6a8499" DESTINATION="ID_1442345755" ENDARROW="Default" ENDINCLINATION="-971;84;" ID="Arrow_ID_1191206769" SOURCE="ID_1844877136" STARTARROW="None" STARTINCLINATION="502;0;"/>
 <icon BUILTIN="flag-yellow"/>
@@ -15943,7 +15950,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1523019202064" HGAP="-88" ID="ID_1224438713" MODIFIED="1523023211290" TEXT="Low-Level-Zugriff" VSHIFT="93">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1523019202064" FOLDED="true" HGAP="-88" ID="ID_1224438713" MODIFIED="1538871875450" TEXT="Low-Level-Zugriff" VSHIFT="93">
 <arrowlink COLOR="#48678b" DESTINATION="ID_435980488" ENDARROW="Default" ENDINCLINATION="-1768;-2819;" ID="Arrow_ID_689216354" STARTARROW="Default" STARTINCLINATION="309;919;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1523023060481" ID="ID_1061103814" MODIFIED="1523023064036" TEXT="Zweck">
@@ -16144,7 +16151,7 @@
 <linktarget COLOR="#97db97" DESTINATION="ID_1568226158" ENDARROW="Default" ENDINCLINATION="226;0;" ID="Arrow_ID_26754858" SOURCE="ID_1400754551" STARTARROW="None" STARTINCLINATION="277;-10;"/>
 <icon BUILTIN="yes"/>
 </node>
-<node COLOR="#338800" CREATED="1523222380124" ID="ID_1101595897" MODIFIED="1523587710088" TEXT="mu&#xdf; pr&#xfc;fen, ob der Cast m&#xf6;glich ist">
+<node COLOR="#338800" CREATED="1523222380124" FOLDED="true" ID="ID_1101595897" MODIFIED="1538871711066" TEXT="mu&#xdf; pr&#xfc;fen, ob der Cast m&#xf6;glich ist">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1523229139923" ID="ID_636796034" MODIFIED="1531584013596" TEXT="Variant?">
 <icon BUILTIN="forward"/>
@@ -16336,8 +16343,8 @@
 <node CREATED="1504371285442" ID="ID_634013434" MODIFIED="1518487921076" TEXT="Allokation von ComponentViews">
 <arrowlink DESTINATION="ID_948587913" ENDARROW="Default" ENDINCLINATION="87;-34;" ID="Arrow_ID_1863964331" STARTARROW="None" STARTINCLINATION="157;10;"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" HGAP="38" ID="ID_1457876217" MODIFIED="1518487921076" TEXT="konkret" VSHIFT="16">
-<icon BUILTIN="flag-pink"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" FOLDED="true" HGAP="38" ID="ID_1457876217" MODIFIED="1538872169254" TEXT="konkret" VSHIFT="16">
+<icon BUILTIN="hourglass"/>
 <node CREATED="1486768080502" ID="ID_1759740464" MODIFIED="1518487921076" TEXT="Binde-Kontext f&#xfc;r globale Aktionen"/>
 <node CREATED="1486768086869" ID="ID_173538981" MODIFIED="1518487921076" TEXT="Idee/Konzept f&#xfc;r kontextabh&#xe4;ngige Aktionen">
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1487119208622" ID="ID_728171298" MODIFIED="1518487921076" TEXT="Analyse anhand einiger Beispiele">
@@ -16448,7 +16455,7 @@
 <arrowlink COLOR="#715f85" DESTINATION="ID_329609486" ENDARROW="Default" ENDINCLINATION="-368;-2533;" ID="Arrow_ID_575977434" STARTARROW="None" STARTINCLINATION="1555;-260;"/>
 <icon BUILTIN="help"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1487313191100" ID="ID_1619021408" MODIFIED="1523670995386" TEXT="Fazit(TODO)">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1487313191100" FOLDED="true" ID="ID_1619021408" MODIFIED="1538871682072" TEXT="Fazit(TODO)">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1487313203254" ID="ID_573801539" MODIFIED="1518487921076" TEXT="Klassen anlegen">
 <icon BUILTIN="button_ok"/>
@@ -16697,8 +16704,9 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" ID="ID_629544763" MODIFIED="1534511335350" TEXT="Aufgabe: docking panels">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" FOLDED="true" ID="ID_629544763" MODIFIED="1538872241376" TEXT="Aufgabe: docking panels">
 <linktarget COLOR="#b0466a" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-849;-1967;" ID="Arrow_ID_1826422316" SOURCE="ID_1922506931" STARTARROW="None" STARTINCLINATION="690;23;"/>
+<linktarget COLOR="#d65a8e" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-176;0;" ID="Arrow_ID_232994989" SOURCE="ID_196345177" STARTARROW="None" STARTINCLINATION="-162;-93;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1504193340786" ID="ID_751993082" MODIFIED="1518487921077" TEXT="PanelLocator hier integrieren">
 <icon BUILTIN="button_ok"/>
@@ -17005,7 +17013,8 @@
 <node COLOR="#338800" CREATED="1488422770096" ID="ID_286551569" MODIFIED="1518487921078" TEXT="#1085 solve setup of top-level menu actions">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485556027322" ID="ID_196345177" MODIFIED="1518487921078" TEXT="Problem: Docking panels">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485556027322" ID="ID_196345177" MODIFIED="1538872241376" TEXT="Problem: Docking panels">
+<arrowlink COLOR="#d65a8e" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-176;0;" ID="Arrow_ID_232994989" STARTARROW="None" STARTINCLINATION="-162;-93;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1485556037465" ID="ID_1657490812" MODIFIED="1518487921078" TEXT="brauchen typischerweise eine Querverbindung"/>
 <node CREATED="1485556046703" ID="ID_50463095" MODIFIED="1518487921078" TEXT="geht das &#xfc;ber den Bus alleine?">
@@ -17090,7 +17099,7 @@
 </node>
 <node CREATED="1533688118209" ID="ID_143545012" MODIFIED="1533688132123" TEXT="Use cases">
 <node CREATED="1533688144038" ID="ID_745583947" MODIFIED="1533688152544" TEXT="bekannte dedizierte Services">
-<node CREATED="1533688177913" ID="ID_1972484306" MODIFIED="1533688773500" TEXT="Fehlerlog">
+<node CREATED="1533688177913" FOLDED="true" ID="ID_1972484306" MODIFIED="1538871654043" TEXT="Fehlerlog">
 <linktarget COLOR="#9c95b1" DESTINATION="ID_1972484306" ENDARROW="Default" ENDINCLINATION="-3826;-1250;" ID="Arrow_ID_1735504887" SOURCE="ID_528918224" STARTARROW="None" STARTINCLINATION="2269;1167;"/>
 <node CREATED="1533688203118" ID="ID_1499180551" MODIFIED="1533688211792" TEXT="angesprochen via UI-Bus"/>
 <node CREATED="1533688212380" ID="ID_1473874751" MODIFIED="1533688216672" TEXT="hat eine global bekannte ID"/>
@@ -18578,7 +18587,7 @@
 </node>
 </node>
 <node CREATED="1477342616175" HGAP="37" ID="ID_954058801" MODIFIED="1518487921084" TEXT="Workspace" VSHIFT="33">
-<node CREATED="1477342624942" ID="ID_56920104" MODIFIED="1518487921084" TEXT="ist-Zustand">
+<node CREATED="1477342624942" FOLDED="true" ID="ID_56920104" MODIFIED="1538871582823" TEXT="ist-Zustand">
 <node CREATED="1477342634181" ID="ID_930340610" MODIFIED="1518487921084" TEXT="ein globaler WindowManager">
 <node CREATED="1477342640932" ID="ID_950379507" MODIFIED="1518487921084" TEXT="hat Liste von WorkspaceWindow-s"/>
 <node CREATED="1477342694237" ID="ID_1913986184" MODIFIED="1518487921084" TEXT="diese deregistrieren sich beim Schlie&#xdf;en"/>
@@ -18889,7 +18898,7 @@
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1531417583847" ID="ID_1316715960" MODIFIED="1531417599201" TEXT="Dienste starten">
-<node CREATED="1531417744657" ID="ID_350697541" MODIFIED="1531419714185" TEXT="Inhalts-Konsument">
+<node CREATED="1531417744657" FOLDED="true" ID="ID_350697541" MODIFIED="1538871530171" TEXT="Inhalts-Konsument">
 <arrowlink COLOR="#30327c" DESTINATION="ID_527465217" ENDARROW="Default" ENDINCLINATION="25;-45;" ID="Arrow_ID_1130203410" STARTARROW="None" STARTINCLINATION="-75;21;"/>
 <node CREATED="1531588709162" ID="ID_152567143" MODIFIED="1531588724487" TEXT="wann aktivieren?">
 <icon BUILTIN="help"/>
@@ -18922,9 +18931,9 @@
 </node>
 </node>
 </node>
-<node CREATED="1531417463128" HGAP="24" ID="ID_1392317817" MODIFIED="1531583568734" TEXT="mit Inhalt beladen" VSHIFT="37">
-<linktarget COLOR="#665692" DESTINATION="ID_1392317817" ENDARROW="Default" ENDINCLINATION="-2067;188;" ID="Arrow_ID_609042013" SOURCE="ID_1997153046" STARTARROW="Default" STARTINCLINATION="2055;91;"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531417714894" ID="ID_527465217" MODIFIED="1531423663998" TEXT="Inhalts-Empfang etablieren">
+<node CREATED="1531417463128" HGAP="24" ID="ID_1392317817" MODIFIED="1538871500891" TEXT="mit Inhalt beladen" VSHIFT="37">
+<linktarget COLOR="#665692" DESTINATION="ID_1392317817" ENDARROW="Default" ENDINCLINATION="-1993;202;" ID="Arrow_ID_609042013" SOURCE="ID_1997153046" STARTARROW="Default" STARTINCLINATION="1943;108;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531417714894" FOLDED="true" ID="ID_527465217" MODIFIED="1538871518590" TEXT="Inhalts-Empfang etablieren">
 <linktarget COLOR="#30327c" DESTINATION="ID_527465217" ENDARROW="Default" ENDINCLINATION="25;-45;" ID="Arrow_ID_1130203410" SOURCE="ID_350697541" STARTARROW="None" STARTINCLINATION="-75;21;"/>
 <icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423717866" ID="ID_1400324647" MODIFIED="1531423724074" TEXT="#1150 GUI content connector">
@@ -19011,7 +19020,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node COLOR="#338800" CREATED="1532788645307" ID="ID_254810710" MODIFIED="1533325370427" TEXT="Trigger-Technik kl&#xe4;ren">
+<node COLOR="#338800" CREATED="1532788645307" FOLDED="true" ID="ID_254810710" MODIFIED="1538871445406" TEXT="Trigger-Technik kl&#xe4;ren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1532788681197" FOLDED="true" HGAP="336" ID="ID_32192034" MODIFIED="1538589894276" TEXT="bei GTK selber abschauen" VSHIFT="-52">
 <richcontent TYPE="NOTE"><html>
@@ -19431,7 +19440,7 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1532788656585" ID="ID_99363690" MODIFIED="1533608413848" TEXT="geeignet ansiedeln">
+<node COLOR="#338800" CREATED="1532788656585" FOLDED="true" ID="ID_99363690" MODIFIED="1538871442164" TEXT="geeignet ansiedeln">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1532794614249" ID="ID_884179844" MODIFIED="1532794617028" TEXT="Plan">
 <node CREATED="1532794617968" ID="ID_1917693631" MODIFIED="1533310766197" TEXT="geeigneten Zugang vom Ctor-Code">
@@ -19910,14 +19919,14 @@
 </node>
 </node>
 </node>
-<node CREATED="1448070545132" HGAP="31" ID="ID_1410368513" MODIFIED="1518487921085" TEXT="Element" VSHIFT="-7">
-<font NAME="SansSerif" SIZE="14"/>
-<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1448070545132" HGAP="31" ID="ID_1410368513" MODIFIED="1538871351555" TEXT="Element" VSHIFT="-7">
+<font BOLD="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="idea"/>
 <node CREATED="1448070580927" ID="ID_467382299" MODIFIED="1518487921085" TEXT="Auspr&#xe4;gungen" VSHIFT="18">
 <node CREATED="1448070554963" ID="ID_579919554" MODIFIED="1518487921085" TEXT="Widget"/>
 <node CREATED="1448070559466" ID="ID_182430638" MODIFIED="1518487921085" TEXT="Controller"/>
 </node>
-<node CREATED="1448070583679" HGAP="30" ID="ID_1248152908" MODIFIED="1518487921085" TEXT="Protokoll">
+<node CREATED="1448070583679" HGAP="69" ID="ID_1248152908" MODIFIED="1538871387818" TEXT="Protokoll" VSHIFT="-1">
 <node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1535638754133" TEXT="Verhaltensweisen">
 <cloud COLOR="#e0d6ba"/>
 <icon BUILTIN="info"/>
@@ -20079,7 +20088,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1448658633478" HGAP="99" ID="ID_314439240" MODIFIED="1518487921085" TEXT="Design" VSHIFT="13">
+<node CREATED="1448658633478" FOLDED="true" HGAP="99" ID="ID_314439240" MODIFIED="1538871380938" TEXT="Design" VSHIFT="13">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1448658692023" ID="ID_339186676" MODIFIED="1518487921085">
 <richcontent TYPE="NODE"><html>
@@ -20280,7 +20289,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1535639028984" ID="ID_316446199" MODIFIED="1535646941006" TEXT="hilfs-Abstraktionen">
+<node CREATED="1535639028984" FOLDED="true" ID="ID_316446199" MODIFIED="1538871369730" TEXT="hilfs-Abstraktionen">
 <linktarget COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" SOURCE="ID_447101734" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
 <node CREATED="1535639151330" ID="ID_301022990" MODIFIED="1535639159958" TEXT="mix-in">
 <icon BUILTIN="yes"/>
@@ -26278,7 +26287,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1448669332204" HGAP="76" ID="ID_329609486" MODIFIED="1518487921087" TEXT="InteractionControl">
+<node CREATED="1448669332204" FOLDED="true" HGAP="76" ID="ID_329609486" MODIFIED="1538871321451" TEXT="InteractionControl">
 <arrowlink COLOR="#b694bf" DESTINATION="ID_430949603" ENDARROW="Default" ENDINCLINATION="178;425;" ID="Arrow_ID_1062305149" STARTARROW="Default" STARTINCLINATION="-629;-2354;"/>
 <linktarget COLOR="#715f85" DESTINATION="ID_329609486" ENDARROW="Default" ENDINCLINATION="-368;-2533;" ID="Arrow_ID_575977434" SOURCE="ID_932507511" STARTARROW="None" STARTINCLINATION="1555;-260;"/>
 <linktarget COLOR="#5f0ac8" DESTINATION="ID_329609486" ENDARROW="Default" ENDINCLINATION="219;-148;" ID="Arrow_ID_1101633958" SOURCE="ID_1009169288" STARTARROW="None" STARTINCLINATION="-315;0;"/>
@@ -26326,7 +26335,7 @@
 <node CREATED="1487275297855" ID="ID_417844993" MODIFIED="1518487921088" TEXT="betreibt FocusTracker"/>
 <node CREATED="1487273437019" ID="ID_1600127727" MODIFIED="1518487921088" TEXT="betreibt Navigator"/>
 </node>
-<node CREATED="1487270226342" HGAP="32" ID="ID_1501993794" MODIFIED="1518487921088" TEXT="SpotLocator">
+<node CREATED="1487270226342" FOLDED="true" HGAP="32" ID="ID_1501993794" MODIFIED="1538871301945" TEXT="SpotLocator">
 <node CREATED="1487270240084" ID="ID_1171094973" MODIFIED="1518487921088" TEXT="Erf&#xfc;llungsgehilfe">
 <icon BUILTIN="idea"/>
 </node>
@@ -26342,7 +26351,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1487270846218" ID="ID_419002057" MODIFIED="1518487921088" TEXT="WorkSite">
+<node CREATED="1487270846218" FOLDED="true" ID="ID_419002057" MODIFIED="1538871296028" TEXT="WorkSite">
 <node CREATED="1487270854793" ID="ID_1953389172" MODIFIED="1518487921088" TEXT="management">
 <node CREATED="1487270860976" ID="ID_1497253556" MODIFIED="1518487921088" TEXT="Speicher">
 <node CREATED="1487270865216" ID="ID_685718473" MODIFIED="1518487921088" TEXT="ref counted"/>
@@ -26444,7 +26453,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1487273942038" HGAP="4" ID="ID_1254651309" MODIFIED="1518487921088" TEXT="Dynamik" VSHIFT="19">
+<node CREATED="1487273942038" FOLDED="true" HGAP="4" ID="ID_1254651309" MODIFIED="1538871289111" TEXT="Dynamik" VSHIFT="19">
 <font NAME="SansSerif" SIZE="13"/>
 <node CREATED="1487274013493" ID="ID_1949865241" MODIFIED="1518487921088" TEXT="mitbewegen">
 <node CREATED="1487274017164" ID="ID_1079230717" MODIFIED="1518487921088" TEXT="Trigger">
@@ -26603,7 +26612,7 @@
 </node>
 </node>
 <node CREATED="1434128059966" ID="ID_823283341" MODIFIED="1518487921089" TEXT="Connect">
-<node CREATED="1434128071126" HGAP="13" ID="ID_1618124128" MODIFIED="1518487921089" TEXT="UI-Bus" VSHIFT="11">
+<node CREATED="1434128071126" FOLDED="true" HGAP="13" ID="ID_1618124128" MODIFIED="1538871258991" TEXT="UI-Bus" VSHIFT="11">
 <linktarget COLOR="#3a8df0" DESTINATION="ID_1618124128" ENDARROW="Default" ENDINCLINATION="-25;-262;" ID="Arrow_ID_539627804" SOURCE="ID_257833497" STARTARROW="Default" STARTINCLINATION="-2;35;"/>
 <font NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="go"/>
@@ -26627,7 +26636,7 @@
 <node CREATED="1450390447884" ID="ID_1176145978" MODIFIED="1518487921090" TEXT="nicht Threadsafe"/>
 <node CREATED="1450390454236" ID="ID_1617539841" MODIFIED="1518487921090" TEXT="l&#xe4;uft ausschlie&#xdf;lich im Event-Thrad"/>
 </node>
-<node CREATED="1434128332277" ID="ID_33025591" MODIFIED="1518487921090" TEXT="Deregistrierung">
+<node CREATED="1434128332277" FOLDED="true" ID="ID_33025591" MODIFIED="1538871252654" TEXT="Deregistrierung">
 <node CREATED="1450390522393" ID="ID_1448879688" MODIFIED="1518487921090" TEXT="Uplink: implizit, h&#xe4;lt Link zu einem Router"/>
 <node CREATED="1450390559805" ID="ID_1657985065" MODIFIED="1518487921090" TEXT="Downlink:">
 <node CREATED="1450390566252" ID="ID_591456555" MODIFIED="1518487921090" TEXT="registriert eine Route zu einem Tangible"/>
@@ -27190,7 +27199,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1488672534372" HGAP="78" ID="ID_1920838120" MODIFIED="1518487921091" TEXT="core commands" VSHIFT="21">
+<node CREATED="1488672534372" FOLDED="true" HGAP="78" ID="ID_1920838120" MODIFIED="1538871116339" TEXT="core commands" VSHIFT="21">
 <icon BUILTIN="prepare"/>
 <node CREATED="1488672580926" ID="ID_1920974710" MODIFIED="1518487921091" TEXT="konzeptionell">
 <node CREATED="1488672621585" ID="ID_1461875887" MODIFIED="1518487921091" TEXT="Command-cycle">
@@ -27313,7 +27322,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1488674659521" ID="ID_1283697108" MODIFIED="1518487921091" TEXT="Problem: Instanz-Management">
+<node CREATED="1488674659521" FOLDED="true" ID="ID_1283697108" MODIFIED="1538871095182" TEXT="Problem: Instanz-Management">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1488674675895" ID="ID_1414738474" MODIFIED="1518487921091" TEXT="benannt oder anonyom">
 <icon BUILTIN="help"/>
@@ -27375,7 +27384,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1488675785223" ID="ID_134788782" MODIFIED="1518487921091" TEXT="Aufgaben">
+<node CREATED="1488675785223" FOLDED="true" ID="ID_134788782" MODIFIED="1538871089432" TEXT="Aufgaben">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1488675788278" ID="ID_241828684" MODIFIED="1518487921091" TEXT="wer erzeugt die Instanz?">
 <icon BUILTIN="button_ok"/>
@@ -27400,7 +27409,7 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1488675800668" ID="ID_260870361" MODIFIED="1525124215246" TEXT="wer h&#xe4;lt die Instanz (am Leben)?">
+<node COLOR="#338800" CREATED="1488675800668" FOLDED="true" ID="ID_260870361" MODIFIED="1538871077721" TEXT="wer h&#xe4;lt die Instanz (am Leben)?">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1488676827432" ID="ID_1354771185" MODIFIED="1488676881245" TEXT="Problem: air-Gap">
 <richcontent TYPE="NOTE"><html>
@@ -27503,7 +27512,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1488936910756" HGAP="200" ID="ID_208733336" MODIFIED="1525124215249" TEXT="neues Design" VSHIFT="14">
+<node COLOR="#338800" CREATED="1488936910756" HGAP="200" ID="ID_208733336" MODIFIED="1538871084006" TEXT="neues Design" VSHIFT="14">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1488937072267" ID="ID_1765750778" MODIFIED="1488937082039" TEXT="separation of concerns">
@@ -27579,7 +27588,7 @@
 <node CREATED="1488940519518" ID="ID_1875791797" MODIFIED="1488940533992" TEXT="bei n&#xe4;chster Anfrage wird CmdInstanceManager daher neue Instanz anlegen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1488677859619" HGAP="-15" ID="ID_827179653" MODIFIED="1518487921092" TEXT="Problem: Service-Zugang" VSHIFT="24">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1488677859619" HGAP="-15" ID="ID_827179653" MODIFIED="1538868929343" TEXT="Problem: Service-Zugang" VSHIFT="24">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -27598,6 +27607,7 @@
 </html></richcontent>
 <arrowlink COLOR="#9f5680" DESTINATION="ID_850989325" ENDARROW="Default" ENDINCLINATION="211;189;" ID="Arrow_ID_1007188680" STARTARROW="None" STARTINCLINATION="912;-974;"/>
 <linktarget COLOR="#758ba4" DESTINATION="ID_827179653" ENDARROW="Default" ENDINCLINATION="173;83;" ID="Arrow_ID_57938013" SOURCE="ID_1621107057" STARTARROW="None" STARTINCLINATION="384;-135;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1488936835940" ID="ID_1322149090" MODIFIED="1518487921092" TEXT="separates Problem">
 <richcontent TYPE="NOTE"><html>
@@ -27614,7 +27624,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1488936840059" ID="ID_1305671938" MODIFIED="1518487921092" TEXT="generisches Problem">
+<node COLOR="#435e98" CREATED="1488936840059" FOLDED="true" ID="ID_1305671938" MODIFIED="1538868939412" TEXT="generisches Problem">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -27629,10 +27639,11 @@
   </body>
 </html></richcontent>
 <arrowlink COLOR="#b6829b" DESTINATION="ID_1359158691" ENDARROW="Default" ENDINCLINATION="1134;-1646;" ID="Arrow_ID_927211935" STARTARROW="None" STARTINCLINATION="1359;916;"/>
+<icon BUILTIN="info"/>
 <node CREATED="1488937419308" ID="ID_994813744" MODIFIED="1518487921092" TEXT="lib::Depend ausbauen"/>
 <node CREATED="1488937436890" ID="ID_1184288068" MODIFIED="1518487921092" TEXT="kann auf sp&#xe4;ter vertagt werden"/>
 <node CREATED="1488937424996" ID="ID_1712367280" MODIFIED="1518487921092" TEXT="vorerst eigenes Front-End verwenden"/>
-<node CREATED="1488937449896" ID="ID_1352702920" MODIFIED="1518487921092" TEXT="Idee klar">
+<node CREATED="1488937449896" ID="ID_1352702920" MODIFIED="1538868893362" TEXT="Idee klar">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -27654,6 +27665,10 @@
     </ul>
   </body>
 </html></richcontent>
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#338800" CREATED="1538868884651" ID="ID_92705586" MODIFIED="1538868888699" TEXT="gel&#xf6;st">
+<icon BUILTIN="button_ok"/>
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 </node>
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@@ -27792,7 +27807,7 @@
 <node CREATED="1489191103187" ID="ID_1016072906" MODIFIED="1518487921092" TEXT="InteractionStateManager"/>
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 </node>
-<node CREATED="1489191112026" ID="ID_1805268724" MODIFIED="1518487921092" TEXT="Implementierung">
+<node CREATED="1489191112026" FOLDED="true" ID="ID_1805268724" MODIFIED="1538871049693" TEXT="Implementierung">
 <icon BUILTIN="go"/>
 <node CREATED="1489191118705" ID="ID_1501573546" MODIFIED="1518487921092" TEXT="Aufbau">
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@@ -27801,7 +27816,7 @@
 <linktarget COLOR="#606d94" DESTINATION="ID_346158251" ENDARROW="Default" ENDINCLINATION="842;21;" ID="Arrow_ID_726918944" SOURCE="ID_898481930" STARTARROW="None" STARTINCLINATION="1012;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node COLOR="#338800" CREATED="1489191208557" ID="ID_632390561" MODIFIED="1518487921092" TEXT="#1088 Command definition registration">
+<node COLOR="#338800" CREATED="1489191208557" FOLDED="true" ID="ID_632390561" MODIFIED="1538870998970" TEXT="#1088 Command definition registration">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1490986190364" ID="ID_266121409" MODIFIED="1518487921092" TEXT="CommandSetup helper">
 <icon BUILTIN="button_ok"/>
@@ -27810,7 +27825,7 @@
 <icon BUILTIN="hourglass"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1489191229098" ID="ID_341428100" MODIFIED="1525124215256" TEXT="#1089 Command instance management">
+<node COLOR="#338800" CREATED="1489191229098" FOLDED="true" ID="ID_341428100" MODIFIED="1538870996643" TEXT="#1089 Command instance management">
 <linktarget COLOR="#584d79" DESTINATION="ID_341428100" ENDARROW="Default" ENDINCLINATION="1995;-1317;" ID="Arrow_ID_879741123" SOURCE="ID_1331796226" STARTARROW="None" STARTINCLINATION="334;-13;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1489196572055" ID="ID_339289633" MODIFIED="1489196577154" TEXT="Command-ID">
@@ -27821,7 +27836,7 @@
 <arrowlink DESTINATION="ID_119293304" ENDARROW="Default" ENDINCLINATION="153;-248;" ID="Arrow_ID_1691148413" STARTARROW="None" STARTINCLINATION="312;0;"/>
 </node>
 </node>
-<node CREATED="1490985775995" ID="ID_1920622498" MODIFIED="1492167861240" TEXT="Instance-Manager">
+<node CREATED="1490985775995" FOLDED="true" ID="ID_1920622498" MODIFIED="1538870993948" TEXT="Instance-Manager">
 <icon BUILTIN="yes"/>
 <node CREATED="1490985786138" ID="ID_664659428" MODIFIED="1490985793244" TEXT="einfache Komponente"/>
 <node CREATED="1490985793793" ID="ID_511499018" MODIFIED="1490985798436" TEXT="wo">
@@ -27839,7 +27854,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1491005426763" ID="ID_1575553505" MODIFIED="1512926192228" TEXT="zu kl&#xe4;ren: duplikate Instanz">
+<node CREATED="1491005426763" ID="ID_1575553505" MODIFIED="1538870990460" TEXT="zu kl&#xe4;ren: duplikate Instanz">
 <arrowlink COLOR="#ca978d" DESTINATION="ID_1805144008" ENDARROW="Default" ENDINCLINATION="594;0;" ID="Arrow_ID_191915626" STARTARROW="None" STARTINCLINATION="594;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1491005509448" ID="ID_709599195" MODIFIED="1491005512147" TEXT="Fehler?"/>
@@ -27849,7 +27864,7 @@
 <icon BUILTIN="forward"/>
 </node>
 </node>
-<node CREATED="1491008040105" ID="ID_662216926" MODIFIED="1512926192229" TEXT="Implementierung">
+<node CREATED="1491008040105" FOLDED="true" HGAP="50" ID="ID_662216926" MODIFIED="1538870978805" TEXT="Implementierung">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1491008045936" ID="ID_1071153669" MODIFIED="1491008146180" TEXT="CommandInstanceManager_test">
 <icon BUILTIN="button_ok"/>
@@ -27922,7 +27937,7 @@
 </node>
 </node>
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-<node CREATED="1491753027936" HGAP="35" ID="ID_118278209" MODIFIED="1512926192230" TEXT="Refactoring" VSHIFT="2">
+<node CREATED="1491753027936" FOLDED="true" HGAP="53" ID="ID_118278209" MODIFIED="1538870985841" TEXT="Refactoring" VSHIFT="4">
 <icon BUILTIN="button_ok"/>
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@@ -27986,7 +28001,7 @@
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 </node>
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+<node CREATED="1491656361886" FOLDED="true" HGAP="62" ID="ID_1269299900" MODIFIED="1538870963761" TEXT="Einbindung" VSHIFT="12">
 <icon BUILTIN="button_ok"/>
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 <icon BUILTIN="button_ok"/>
@@ -28154,7 +28169,7 @@
 <node CREATED="1492391131173" ID="ID_1089257513" MODIFIED="1492391139944" TEXT="CmdAccess wird komplett on top arbeiten"/>
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-<node CREATED="1492293088861" HGAP="28" ID="ID_1660020661" MODIFIED="1525124215270" TEXT="&#xdc;berarbeitung" VSHIFT="14">
+<node CREATED="1492293088861" FOLDED="true" HGAP="28" ID="ID_1660020661" MODIFIED="1538870959807" TEXT="&#xdc;berarbeitung" VSHIFT="14">
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 <icon BUILTIN="button_ok"/>
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@@ -28292,7 +28307,7 @@
 </node>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1489191252503" ID="ID_1621107057" MODIFIED="1518487921092" TEXT="#1090 Command access for UI-Elements">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1489191252503" FOLDED="true" ID="ID_1621107057" MODIFIED="1538870952437" TEXT="#1090 Command access for UI-Elements">
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 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1489196597635" ID="ID_850892898" MODIFIED="1518487921092" TEXT="Access-Front-End">
@@ -28563,8 +28578,8 @@
 </node>
 </node>
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-<node CREATED="1491005020528" ID="ID_1665806173" MODIFIED="1518487921093" TEXT="zu kl&#xe4;ren">
-<node CREATED="1491005025928" ID="ID_1805144008" MODIFIED="1525124215277" TEXT="duplikate Instanzen">
+<node CREATED="1491005020528" FOLDED="true" ID="ID_1665806173" MODIFIED="1538870910480" TEXT="zu kl&#xe4;ren">
+<node CREATED="1491005025928" FOLDED="true" ID="ID_1805144008" MODIFIED="1538870902328" TEXT="duplikate Instanzen">
 <linktarget COLOR="#ca978d" DESTINATION="ID_1805144008" ENDARROW="Default" ENDINCLINATION="594;0;" ID="Arrow_ID_191915626" SOURCE="ID_1575553505" STARTARROW="None" STARTINCLINATION="594;0;"/>
 <icon BUILTIN="button_ok"/>
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@@ -28665,7 +28680,7 @@
 <icon BUILTIN="yes"/>
 </node>
 </node>
-<node CREATED="1492167970338" ID="ID_1983035921" MODIFIED="1518487921093" TEXT="InteractionState &lt;=&gt; InvocationTrail">
+<node CREATED="1492167970338" FOLDED="true" ID="ID_1983035921" MODIFIED="1538870875392" TEXT="InteractionState &lt;=&gt; InvocationTrail">
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@@ -28833,7 +28848,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1492268981885" HGAP="114" ID="ID_1743832326" MODIFIED="1525124215289" TEXT="Design-Kritik" VSHIFT="-55">
+<node CREATED="1492268981885" FOLDED="true" HGAP="114" ID="ID_1743832326" MODIFIED="1538870885267" TEXT="Design-Kritik" VSHIFT="-55">
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 <icon BUILTIN="button_ok"/>
 <node CREATED="1492269138424" ID="ID_1682612433" MODIFIED="1492269153284" TEXT="gef&#xe4;hrlich stark vom komplexen Fall getrieben">
@@ -29030,7 +29045,7 @@
 <node CREATED="1489546843356" ID="ID_1556795494" MODIFIED="1518487921093" TEXT="ich will Gestaltbarkeit"/>
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 </node>
-<node CREATED="1489546994743" ID="ID_1851585461" MODIFIED="1518487921094" TEXT="im Einzelnen">
+<node CREATED="1489546994743" FOLDED="true" ID="ID_1851585461" MODIFIED="1538870929524" TEXT="im Einzelnen">
 <node CREATED="1489777326111" ID="ID_497480483" MODIFIED="1525124215293" TEXT="CommandID">
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 <icon BUILTIN="info"/>
@@ -29256,7 +29271,7 @@
 <node CREATED="1489781447639" ID="ID_588776773" MODIFIED="1518487921094" TEXT="proc/cmd/*-cmd.cpp"/>
 <node CREATED="1489781476355" ID="ID_1953562265" MODIFIED="1518487921094" TEXT="Namespace proc::cmd"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1489781611257" ID="ID_179887792" MODIFIED="1518487921094" TEXT="brauche">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1489781611257" FOLDED="true" ID="ID_179887792" MODIFIED="1538871019179" TEXT="brauche">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1489781616257" ID="ID_1645536558" MODIFIED="1518487921094" TEXT="Schema f&#xfc;r ID-Konstanten"/>
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@@ -29376,13 +29391,13 @@
 </node>
 </node>
 </node>
-<node CREATED="1490985673313" ID="ID_1705714293" MODIFIED="1518487921094" TEXT="Instanzen">
+<node CREATED="1490985673313" FOLDED="true" ID="ID_1705714293" MODIFIED="1538871036105" TEXT="Instanzen">
 <icon BUILTIN="button_ok"/>
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 <icon BUILTIN="button_ok"/>
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 <node CREATED="1490985710963" ID="ID_447657694" MODIFIED="1490985717974" TEXT="keinerlei Lifecycle-Magie"/>
-<node CREATED="1490985720722" ID="ID_1386937508" MODIFIED="1533608414037" TEXT="ist nur eine Registry mit etwas Funktionalit&#xe4;t">
+<node CREATED="1490985720722" FOLDED="true" ID="ID_1386937508" MODIFIED="1538871032990" TEXT="ist nur eine Registry mit etwas Funktionalit&#xe4;t">
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@@ -29525,7 +29540,7 @@
 <node CREATED="1448063874479" HGAP="43" ID="ID_739054690" MODIFIED="1518487921094" TEXT="UI-Modell" VSHIFT="1">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1434128074725" HGAP="28" ID="ID_933994138" MODIFIED="1518487921094" TEXT="Diff-System" VSHIFT="1">
+<node CREATED="1434128074725" FOLDED="true" HGAP="28" ID="ID_933994138" MODIFIED="1538870799628" TEXT="Diff-System" VSHIFT="1">
 <font NAME="SansSerif" SIZE="14"/>
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@@ -29545,11 +29560,11 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1434128243334" ID="ID_1828331212" MODIFIED="1518487921094" TEXT="Typ-Darstellung"/>
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+<node CREATED="1434128170381" FOLDED="true" ID="ID_976705384" MODIFIED="1538870789992" TEXT="GenNode">
+<linktarget COLOR="#ff0033" DESTINATION="ID_976705384" ENDARROW="Default" ENDINCLINATION="-36;39;" ID="Arrow_ID_1285375088" SOURCE="ID_553361956" STARTARROW="Default" STARTINCLINATION="-5;-77;"/>
 <icon BUILTIN="button_ok"/>
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-<node CREATED="1435421670349" ID="ID_1358247529" MODIFIED="1525124215303" TEXT="verwende EntryID">
+<node CREATED="1435421670349" FOLDED="true" ID="ID_1358247529" MODIFIED="1538870761827" TEXT="verwende EntryID">
 <icon BUILTIN="button_ok"/>
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@@ -29571,7 +29586,7 @@
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-<node CREATED="1435943070542" ID="ID_949070153" MODIFIED="1512926192297" TEXT="Wert-Semantik">
+<node CREATED="1435943070542" FOLDED="true" ID="ID_949070153" MODIFIED="1538870755171" TEXT="Wert-Semantik">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1435943077974" ID="ID_280152814" MODIFIED="1435943080682" TEXT="kopierbar"/>
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@@ -29625,7 +29640,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1434128217645" ID="ID_1790054544" MODIFIED="1525124215315" TEXT="Monade">
+<node CREATED="1434128217645" FOLDED="true" ID="ID_1790054544" MODIFIED="1538870749185" TEXT="Monade">
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@@ -29700,7 +29715,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1435942891695" ID="ID_947731706" MODIFIED="1512926192305" TEXT="Iteration">
+<node CREATED="1435942891695" FOLDED="true" ID="ID_947731706" MODIFIED="1538870739697" TEXT="Iteration">
 <linktarget COLOR="#98e2df" DESTINATION="ID_947731706" ENDARROW="Default" ENDINCLINATION="-78;95;" ID="Arrow_ID_197324270" SOURCE="ID_1665153106" STARTARROW="None" STARTINCLINATION="168;-25;"/>
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@@ -29767,7 +29782,7 @@
 <icon BUILTIN="button_cancel"/>
 </node>
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-<node CREATED="1440983855875" ID="ID_1991218497" MODIFIED="1512926192309" TEXT="RecursiveSelfIntegration">
+<node CREATED="1440983855875" FOLDED="true" ID="ID_1991218497" MODIFIED="1538870723919" TEXT="RecursiveSelfIntegration">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -29815,7 +29830,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1441935566556" ID="ID_128176235" MODIFIED="1512926192312" TEXT="oder doch depthFirst?">
+<node CREATED="1441935566556" FOLDED="true" ID="ID_128176235" MODIFIED="1538870725248" TEXT="oder doch depthFirst?">
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 <icon BUILTIN="button_cancel"/>
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@@ -29881,7 +29896,7 @@
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 </node>
-<node CREATED="1441936154834" ID="ID_1320687783" MODIFIED="1512926192313">
+<node CREATED="1441936154834" FOLDED="true" ID="ID_1320687783" MODIFIED="1538870726527">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -30055,7 +30070,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1434128176918" ID="ID_863330674" MODIFIED="1525124215322" TEXT="Record">
+<node CREATED="1434128176918" FOLDED="true" ID="ID_863330674" MODIFIED="1538870769507" TEXT="Record">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1434128198957" ID="ID_1224215957" MODIFIED="1512926192319" TEXT="Konstuktor">
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@@ -30187,7 +30202,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1436042774669" ID="ID_714336641" MODIFIED="1525124215326" TEXT="Implementierung">
+<node CREATED="1436042774669" FOLDED="true" ID="ID_714336641" MODIFIED="1538870705820" TEXT="Implementierung">
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@@ -30357,7 +30372,7 @@
 </html></richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1434129204149" ID="ID_1688475597" MODIFIED="1512926192332" TEXT="GenNode">
+<node CREATED="1434129204149" FOLDED="true" ID="ID_1688475597" MODIFIED="1538870713145" TEXT="GenNode">
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@@ -30387,12 +30402,12 @@
 </node>
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+<node CREATED="1434128134508" ID="ID_553361956" MODIFIED="1538870787739" TEXT="ID-Repr&#xe4;s">
+<arrowlink COLOR="#ff0033" DESTINATION="ID_976705384" ENDARROW="Default" ENDINCLINATION="-36;39;" ID="Arrow_ID_1285375088" STARTARROW="Default" STARTINCLINATION="-5;-77;"/>
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 </node>
-<node CREATED="1434128412934" ID="ID_1319614474" MODIFIED="1525124215331" TEXT="Repr&#xe4;s entscheiden">
+<node CREATED="1434128412934" FOLDED="true" ID="ID_1319614474" MODIFIED="1538870700108" TEXT="Repr&#xe4;s entscheiden">
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@@ -30587,7 +30602,7 @@
 </node>
 </node>
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-<node CREATED="1443733567706" HGAP="241" ID="ID_143203937" MODIFIED="1525124215369" TEXT="Diff-Language" VSHIFT="23">
+<node CREATED="1443733567706" FOLDED="true" HGAP="325" ID="ID_143203937" MODIFIED="1538870668723" TEXT="Diff-Language" VSHIFT="41">
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@@ -32231,8 +32248,31 @@
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+<node CREATED="1535891065189" FOLDED="true" ID="ID_1233342893" MODIFIED="1538869221331" TEXT="Iterator-Monade">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      seit l&#228;ngerer Zeit ein Thema,
+    </p>
+    <p>
+      f&#252;r das ich verschiedene L&#246;sungen ausprobiere
+    </p>
+    <ul>
+      <li>
+        IterExplorer : erster Anlauf, etwas schief
+      </li>
+      <li>
+        TreeExplorer : Pipeline-Builder, vielversprechend
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
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+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531420231598" ID="ID_1997153046" MODIFIED="1538871500891" TEXT="#1148 populate initial session">
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+<icon BUILTIN="wizard"/>
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+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Fr&#252;hjahr 2018 komplett &#252;berarbeitet.
+    </p>
+    <p>
+      L&#246;sung scheint nun &quot;rund&quot; zu sein
+    </p>
+  </body>
+</html>
+</richcontent>
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@@ -34907,7 +34966,7 @@
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@@ -36040,7 +36099,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521160700669" HGAP="4" ID="ID_978221585" MODIFIED="1531584013629" TEXT="Dokumentation" VSHIFT="25">
+<node COLOR="#338800" CREATED="1521160700669" FOLDED="true" HGAP="4" ID="ID_978221585" MODIFIED="1538868680521" TEXT="Dokumentation" VSHIFT="25">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521790595841" ID="ID_1874367277" MODIFIED="1521936684007" TEXT="Doku-Text im TiddlyWiki">
 <icon BUILTIN="button_ok"/>
@@ -36115,7 +36174,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1520722160591" ID="ID_135546699" MODIFIED="1531584013633" TEXT="Unit-Test">
+<node COLOR="#338800" CREATED="1520722160591" FOLDED="true" ID="ID_135546699" MODIFIED="1538868711909" TEXT="Unit-Test">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521419576303" ID="ID_726128967" MODIFIED="1522042418343" TEXT="alte Tests portieren">
 <icon BUILTIN="button_ok"/>
@@ -36223,7 +36282,7 @@
 <node COLOR="#338800" CREATED="1521160755182" ID="ID_678080556" MODIFIED="1522428573233" TEXT="Umbenennen">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1521160765588" ID="ID_1857896991" MODIFIED="1531584013638" TEXT="Konfig-Aufrufe anpassen">
+<node COLOR="#338800" CREATED="1521160765588" FOLDED="true" ID="ID_1857896991" MODIFIED="1538868731786" TEXT="Konfig-Aufrufe anpassen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522033578207" HGAP="18" ID="ID_252429770" MODIFIED="1525124215470" TEXT="Name f&#xfc;r Freunschaft+" VSHIFT="-20">
 <icon BUILTIN="button_ok"/>
@@ -36321,7 +36380,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521858774321" ID="ID_302686020" MODIFIED="1525124215477" TEXT="aufr&#xe4;umen">
+<node COLOR="#338800" CREATED="1521858774321" FOLDED="true" ID="ID_302686020" MODIFIED="1538868733731" TEXT="aufr&#xe4;umen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1521858779614" ID="ID_62114860" MODIFIED="1521928808594" TEXT="was ist depend4test?">
 <icon BUILTIN="help"/>
@@ -36900,7 +36959,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1522033564057" ID="ID_1294295502" MODIFIED="1531584013645" TEXT="Nacharbeiten">
+<node COLOR="#338800" CREATED="1522033564057" FOLDED="true" ID="ID_1294295502" MODIFIED="1538868737001" TEXT="Nacharbeiten">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522454023039" ID="ID_1828121921" MODIFIED="1525124215498" TEXT="Folge-Probleme">
 <icon BUILTIN="button_ok"/>
@@ -37181,7 +37240,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1521160792856" ID="ID_367925099" MODIFIED="1531584013647" TEXT="System l&#xe4;uft wie zuvor">
+<node COLOR="#338800" CREATED="1521160792856" FOLDED="true" ID="ID_367925099" MODIFIED="1538868739224" TEXT="System l&#xe4;uft wie zuvor">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1522457229331" ID="ID_1130290094" MODIFIED="1522632193064" TEXT="Test-Suite">
 <icon BUILTIN="button_ok"/>
@@ -37265,7 +37324,8 @@
 <node CREATED="1522738993353" ID="ID_134172826" MODIFIED="1522739006692" TEXT="per rekursivem Depend + Lifecycle"/>
 </node>
 </node>
-<node CREATED="1515975646354" ID="ID_1049835373" MODIFIED="1515975649630" TEXT="Singleton">
+<node CREATED="1515975646354" FOLDED="true" ID="ID_1049835373" MODIFIED="1538868858623" TEXT="Singleton">
+<icon BUILTIN="idea"/>
 <node COLOR="#338800" CREATED="1515976424292" ID="ID_357830540" MODIFIED="1515976443809" TEXT="meist gut genug">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
@@ -37510,8 +37570,8 @@
 </node>
 <node CREATED="1481777355747" ID="ID_1804595708" MODIFIED="1518487921096" TEXT="Subsystem-&gt;end">
 <node CREATED="1481777368330" ID="ID_1933237483" MODIFIED="1518487921096" TEXT="Halte-Nachricht"/>
-<node COLOR="#338800" CREATED="1481777374801" ID="ID_1844558240" MODIFIED="1518487921096" TEXT="sicherstellen, da&#xdf; Loop anh&#xe4;lt">
-<arrowlink COLOR="#f70841" DESTINATION="ID_1748096848" ENDARROW="Default" ENDINCLINATION="-353;-77;" ID="Arrow_ID_506637666" STARTARROW="None" STARTINCLINATION="-200;38;"/>
+<node COLOR="#338800" CREATED="1481777374801" ID="ID_1844558240" MODIFIED="1538871187024" TEXT="sicherstellen, da&#xdf; Loop anh&#xe4;lt">
+<arrowlink COLOR="#10f1a2" DESTINATION="ID_1748096848" ENDARROW="Default" ENDINCLINATION="-480;-82;" ID="Arrow_ID_506637666" STARTARROW="None" STARTINCLINATION="-200;38;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1483654823454" ID="ID_397283548" MODIFIED="1518487921096" TEXT="shutdown -&gt; requireAction"/>
 <node CREATED="1483654831773" ID="ID_911489519" MODIFIED="1518487921096" TEXT="shutdown-Trigger macht Notify"/>
@@ -37594,7 +37654,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1533918431595" ID="ID_1121251191" MODIFIED="1533918772587" TEXT="ErrorLog(Asset)">
+<node CREATED="1533918431595" FOLDED="true" ID="ID_1121251191" MODIFIED="1538871155031" TEXT="ErrorLog(Asset)">
 <linktarget COLOR="#68788a" DESTINATION="ID_1121251191" ENDARROW="Default" ENDINCLINATION="-1644;0;" ID="Arrow_ID_146013003" SOURCE="ID_1117749960" STARTARROW="None" STARTINCLINATION="-4766;280;"/>
 <node CREATED="1533997520937" ID="ID_130549036" MODIFIED="1533997523524" TEXT="Typ">
 <node CREATED="1533918806369" ID="ID_1198682609" MODIFIED="1533918809694" TEXT="Media">
@@ -37793,7 +37853,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1481778538165" HGAP="37" ID="ID_522398894" MODIFIED="1518487921096" TEXT="ProcDispatcher" VSHIFT="12">
+<node CREATED="1481778538165" FOLDED="true" HGAP="37" ID="ID_522398894" MODIFIED="1538871220750" TEXT="ProcDispatcher" VSHIFT="12">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481826274018" HGAP="18" ID="ID_1916296972" MODIFIED="1518487921096" TEXT="Requirements" VSHIFT="-7">
 <icon BUILTIN="button_ok"/>
@@ -37850,7 +37910,7 @@
 <node CREATED="1481827652539" ID="ID_313823253" MODIFIED="1518487921096" TEXT="supersede"/>
 </node>
 </node>
-<node CREATED="1481917572639" HGAP="74" ID="ID_190109346" MODIFIED="1518487921096" TEXT="operational..." VSHIFT="-27">
+<node CREATED="1481917572639" FOLDED="true" HGAP="74" ID="ID_190109346" MODIFIED="1538871216075" TEXT="operational..." VSHIFT="-27">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1481917612602" ID="ID_567971228" MODIFIED="1518487921096" TEXT="Loop l&#xe4;uft stets, aber blockt ggfs"/>
 <node CREATED="1481917641910" ID="ID_1157396234" MODIFIED="1518487921096" TEXT="anf&#xe4;nglich idle --&gt; schlafen"/>
@@ -38004,7 +38064,7 @@
 <node CREATED="1481828624042" ID="ID_1970372601" MODIFIED="1518487921097" TEXT="Looper f&#xfc;r Schleifen-Logik"/>
 <node CREATED="1481828639584" ID="ID_1344182776" MODIFIED="1518487921097" TEXT="CommandQueue"/>
 </node>
-<node CREATED="1481778549940" HGAP="50" ID="ID_676848252" MODIFIED="1518487921097" TEXT="DispatcherLoop" VSHIFT="1">
+<node CREATED="1481778549940" FOLDED="true" HGAP="50" ID="ID_676848252" MODIFIED="1538871208928" TEXT="DispatcherLoop" VSHIFT="1">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481778741546" ID="ID_684867533" MODIFIED="1518487921097" TEXT="&#xf6;ffnet Session-Interface">
 <icon BUILTIN="button_ok"/>
@@ -38080,8 +38140,8 @@
 </node>
 </node>
 </node>
-<node CREATED="1481778590790" ID="ID_1748096848" MODIFIED="1518487921097" TEXT="Anhalten">
-<linktarget COLOR="#f70841" DESTINATION="ID_1748096848" ENDARROW="Default" ENDINCLINATION="-353;-77;" ID="Arrow_ID_506637666" SOURCE="ID_1844558240" STARTARROW="None" STARTINCLINATION="-200;38;"/>
+<node CREATED="1481778590790" ID="ID_1748096848" MODIFIED="1538871175327" TEXT="Anhalten">
+<linktarget COLOR="#10f1a2" DESTINATION="ID_1748096848" ENDARROW="Default" ENDINCLINATION="-480;-82;" ID="Arrow_ID_506637666" SOURCE="ID_1844558240" STARTARROW="None" STARTINCLINATION="-200;38;"/>
 <node CREATED="1481778666820" ID="ID_1860590145" MODIFIED="1518487921097" TEXT="Trigger-Variable im Looper">
 <icon BUILTIN="idea"/>
 </node>
@@ -38093,7 +38153,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1481778708207" HGAP="50" ID="ID_1311208726" MODIFIED="1518487921097" TEXT="Builder-Steuerung">
+<node COLOR="#338800" CREATED="1481778708207" FOLDED="true" HGAP="50" ID="ID_1311208726" MODIFIED="1538871203865" TEXT="Builder-Steuerung">
 <linktarget COLOR="#5242a4" DESTINATION="ID_1311208726" ENDARROW="Default" ENDINCLINATION="2;-45;" ID="Arrow_ID_313252247" SOURCE="ID_209292609" STARTARROW="None" STARTINCLINATION="-186;-13;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1481828478741" ID="ID_1706868067" MODIFIED="1518487921097" TEXT="Hysterese"/>

From 3f87ef43ecdefee398d4d54af53dd59cb4aee12e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 7 Oct 2018 17:31:49 +0200
Subject: [PATCH 136/178] ...tidy.up: preserve the Gtk::Canvas experiment (see
 #1020)

Turning this investigation experiment from 2016 into a stand-alone Gtk application.
Using the research folder as final disposal site for now...
---
 research/gtk-canvas-experiment.cpp | 67 +++++++++++++-----------------
 research/gtk-canvas-experiment.hpp | 40 ++++--------------
 research/gtk-canvas-main.cpp       | 28 +++++++++++--
 3 files changed, 63 insertions(+), 72 deletions(-)

diff --git a/research/gtk-canvas-experiment.cpp b/research/gtk-canvas-experiment.cpp
index 272ffe9ef..af3132789 100644
--- a/research/gtk-canvas-experiment.cpp
+++ b/research/gtk-canvas-experiment.cpp
@@ -24,8 +24,8 @@
 /** @file gtk-canvas-experiment.cpp
  ** Implementation of gtk canvas experiments.
  ** 
- ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
- ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
+ ** @remark as of 10/2018 we start to build a new timeline widget,
+ **         based on this technology demo.
  ** @see timeline-widget.hpp
  ** 
  */
@@ -33,11 +33,10 @@
 
 #include "gtk-canvas-experiment.hpp"
 
-//#include "gui/workspace/workspace-window.hpp"
 #include "lib/format-string.hpp"
 #include "lib/format-cout.hpp"
+#include "lib/util.hpp"
 
-//#include "lib/util.hpp"
 #include <algorithm>
 #include <cstdlib>
 #include <string>
@@ -45,9 +44,7 @@
 
 
 using util::_Fmt;
-//using std::shared_ptr;
-//using std::weak_ptr;
-//using util::contains;
+using util::isnil;
 using Gtk::Widget;
 using sigc::mem_fun;
 using sigc::ptr_fun;
@@ -56,12 +53,10 @@ using std::rand;
 using std::max;
 
 
-namespace gui {
-namespace panel {
-    
+namespace demo {
   
   
-  TimelinePanel::TimelinePanel ()
+  CanvasDemoPanel::CanvasDemoPanel ()
     : Box{}
     , twoParts_(Gtk::ORIENTATION_VERTICAL)
     , buttons_()
@@ -79,35 +74,35 @@ namespace panel {
       button_1_.set_use_underline();
       button_1_.set_tooltip_markup("<b>Experiment 1</b>:\nplace new child widget\nat random position on the canvas");
       button_1_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_1));
+                  mem_fun(*this, &CanvasDemoPanel::experiment_1));
       buttons_.add(button_1_);
       
       button_2_.set_label("_move");
       button_2_.set_use_underline();
       button_2_.set_tooltip_markup("<b>Experiment 2</b>:\nmove all child widgets randomly");
       button_2_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_2));
+                  mem_fun(*this, &CanvasDemoPanel::experiment_2));
       buttons_.add(button_2_);
       
       button_3_.set_label("a_lign");
       button_3_.set_use_underline();
       button_3_.set_tooltip_markup("<b>Experiment 3</b>:\nalign all child widgets in a row\nwith silight random vertical offset");
       button_3_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_3));
+                  mem_fun(*this, &CanvasDemoPanel::experiment_3));
       buttons_.add(button_3_);
       
       button_4_.set_label("_grow");
       button_4_.set_use_underline();
       button_4_.set_tooltip_markup("<b>Experiment 4</b>:\nextend arbitrary child widget's text");
       button_4_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_4));
+                  mem_fun(*this, &CanvasDemoPanel::experiment_4));
       buttons_.add(button_4_);
       
       button_5_.set_label("_kill");
       button_5_.set_use_underline();
       button_5_.set_tooltip_markup("<b>Experiment 5</b>:\nkill arbitrary child widget");
       button_5_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_5));
+                  mem_fun(*this, &CanvasDemoPanel::experiment_5));
       buttons_.add(button_5_);
       
       toggleDraw_.set_label("draw");
@@ -121,7 +116,8 @@ namespace panel {
       frame_.add(scroller_);
       frame_.set_border_width(5);
       
-      scroller_.set_shadow_type(Gtk::SHADOW_NONE);
+      scroller_.set_shadow_type(Gtk::SHADOW_IN);
+      scroller_.property_expand() = true;    // dynamically grab any available additional space
       scroller_.set_border_width(10);
       scroller_.add(canvas_);
       
@@ -132,22 +128,9 @@ namespace panel {
       this->show_all();
     }
   
-  const char*
-  TimelinePanel::getTitle()
-  {
-    return _("Timeline");
-  }
-  
-  const gchar*
-  TimelinePanel::getStockID()
-  {
-    return "panel_timeline";
-  }
-  
-  
   
   void
-  TimelinePanel::experiment_1()
+  CanvasDemoPanel::experiment_1()
   {
     frame_.set_label("Experiment 1... PLACE");
     
@@ -162,7 +145,7 @@ namespace panel {
   
   
   void
-  TimelinePanel::experiment_2()
+  CanvasDemoPanel::experiment_2()
   {
     frame_.set_label("Experiment 2... MOVE");
     for (Widget* chld : childz_)
@@ -181,7 +164,7 @@ namespace panel {
   
   
   void
-  TimelinePanel::experiment_3()
+  CanvasDemoPanel::experiment_3()
   {
     frame_.set_label("Experiment 3... ALIGN");
     uint pos=0;
@@ -198,9 +181,14 @@ namespace panel {
   
   
   void
-  TimelinePanel::experiment_4()
+  CanvasDemoPanel::experiment_4()
   {
     frame_.set_label("Experiment 4... GROW");
+    if (isnil (childz_))
+      {
+        ERROR (test, "need to fabricate more childz before you can grow 'em...");
+        return;
+      }
     uint selector = rand() % childz_.size();
     ChildEx& toGrow = *childz_[selector];
     toGrow.set_label ("***"+toGrow.get_label()+"***");
@@ -208,9 +196,14 @@ namespace panel {
   
   
   void
-  TimelinePanel::experiment_5()
+  CanvasDemoPanel::experiment_5()
   {
     frame_.set_label("Experiment 5... KILL");
+    if (isnil (childz_))
+      {
+        WARN (test, "no children to kill. so sad.");
+        return;
+      }
     uint killPos = rand() % childz_.size();
     ChildV::iterator killThat(&childz_[killPos]);
     ChildEx* victim = *killThat;
@@ -339,7 +332,7 @@ namespace panel {
   
   
   ChildEx*
-  TimelinePanel::makeChld()
+  CanvasDemoPanel::makeChld()
   {
     return Gtk::manage(new ChildEx);
   }
@@ -372,4 +365,4 @@ namespace panel {
   
   
   
-}}   // namespace gui::panel
+}   // namespace demo
diff --git a/research/gtk-canvas-experiment.hpp b/research/gtk-canvas-experiment.hpp
index 565ff6635..84a22509f 100644
--- a/research/gtk-canvas-experiment.hpp
+++ b/research/gtk-canvas-experiment.hpp
@@ -1,5 +1,5 @@
 /*
-  GTK-CANVAS-EXPERIMENT.hpp  -  Explore capabilities of the GTK canvas widget            
+  GTK-CANVAS-EXPERIMENT.hpp  -  Explore capabilities of the GTK canvas widget
 
   Copyright (C)         Lumiera.org
     2016,               Hermann Vosseler <Ichthyostega@web.de>
@@ -23,20 +23,8 @@
 
 /** @file gtk-canvas-experiment.hpp
  ** A custom widget using a canvas to draw and to place widgets.
- ** 
- ** ## planned design 2/2017
- ** The architecture of the UI is in a state of transition right now, working towards the goal
- ** of interconnected layers and an operative session and engine. Within the new control structure
- ** about to be built, there is an UI top-level circle of managing entities to handle global concerns
- ** and actions. The ctrl::InteractionDirector incorporates the role of _model root_ and thus manages
- ** a collection of timelines. The timeline panel exposes this collection and allows to view and
- ** interact with one of the given timelines. The build-up of the timeline display and thus the
- ** initiative to expose a timeline comes from the interaction director -- but as usual with
- ** graphical user interfaces, any user interaction after this point is handled autonomously
- ** by the gui::timeline::TimelineWidget and gui::timeline::TimelineController
- ** 
- ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
- ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
+ ** @remark as of 10/2018 we start to build a new timeline widget,
+ **         based on this technology demo.
  */
 
 
@@ -45,18 +33,11 @@
 
 #include "gui/gtk-base.hpp"
 
-//#include <memory>
 #include <vector>
 
 
-
-namespace gui  {
-namespace model{
-    class Sequence;
-  }
-namespace panel {
+namespace demo {
   
-//using std::shared_ptr;
   
   /**
    * "experimental" child widget for investigation of Gtk::Layout
@@ -117,10 +98,10 @@ namespace panel {
    *  7. hide and re-show a partially and a totally overlapped widget
    *  8. find a way to move a widget ✔ and delete arbitrary widgets ✔
    *  9. expand an existing widget (text change) ✔
-   *  10. build a custom "clip" widget
-   *  11. retrofit all preceding tests to use this "clip" widget
+   *  10. build a custom "clip" widget ✘
+   *  11. retrofit all preceding tests to use this "clip" widget ✘
    */
-  class TimelinePanel
+  class CanvasDemoPanel
     : public Gtk::Box
     {
     public:
@@ -128,12 +109,9 @@ namespace panel {
        * @param panel_manager The owner panel manager widget.
        * @param dock_item The GdlDockItem that will host this panel.
        */
-      TimelinePanel();
+      CanvasDemoPanel();
       
       
-      static const char* getTitle();
-      static const gchar* getStockID();
-      
       
     private:
       Gtk::Box twoParts_;
@@ -161,5 +139,5 @@ namespace panel {
     };
   
   
-}}// namespace gui::panel
+}// namespace demo
 #endif /*RESEARCH_GTK_CANVAS_EXPERIMENT_H*/
diff --git a/research/gtk-canvas-main.cpp b/research/gtk-canvas-main.cpp
index db0dce685..e949c675e 100644
--- a/research/gtk-canvas-main.cpp
+++ b/research/gtk-canvas-main.cpp
@@ -22,6 +22,10 @@
 
 /** @file gtk-canvas-main.cpp
  ** Simple GTK Application frame to explore canvas handling.
+ ** This demo application was extracted in 10/2018 to preserve
+ ** [exploration experiments](\ref demo::CanvasDemoPanel), carried
+ ** out in 2016 to decide upon the technology to support Lumiera's
+ ** gui::timeline::TimelineWidget.
  */
 
 
@@ -30,15 +34,31 @@
 #include "lib/error.hpp"
 
 
-namespace {
-}
+namespace demo {
+  
+  class Window
+    : public Gtk::Window
+    {
+      CanvasDemoPanel demoPanel_;
+      
+    public:
+      Window()
+        : demoPanel_{}
+        {
+          this->add (demoPanel_);
+        }
+    };
+}//namespace
 
 
 
 int
-main (int argc, const char* argv[])
+main (int argc, char* argv[])
 {
   NOTICE (main, "*** GTK-Canvas Experiment ***");
   
-  return 0;
+  auto guiApp = Gtk::Application::create (argc, argv);
+  
+  demo::Window window;
+  return guiApp->run(window);
 }

From 08ed6e1ee8e7f38ea848478c425317b393bb5660 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 8 Oct 2018 02:26:38 +0200
Subject: [PATCH 137/178] Timeline: building the layout and control structure
 (#1016)

This marks start of actual work on this fundamental task.

Extensive planning from 2016 is available, together with an almost
complete diff binding for the entities involved into timeline display.
---
 src/gui/timeline/clip-presenter.cpp      |   1 +
 src/gui/timeline/clip-presenter.hpp      |   1 +
 src/gui/timeline/layout-manager.cpp      |   1 +
 src/gui/timeline/layout-manager.hpp      |   1 +
 src/gui/timeline/marker-widget.cpp       |   1 +
 src/gui/timeline/marker-widget.hpp       |   1 +
 src/gui/timeline/timeline-controller.cpp |   2 +-
 src/gui/timeline/timeline-controller.hpp |   2 +-
 src/gui/timeline/timeline-widget.cpp     |   2 +-
 src/gui/timeline/timeline-widget.hpp     |   2 +-
 src/gui/timeline/track-presenter.cpp     |   4 +-
 src/gui/timeline/track-presenter.hpp     |   5 +-
 wiki/renderengine.html                   |  41 ++-
 wiki/thinkPad.ichthyo.mm                 | 371 +++++++++++++++++++----
 14 files changed, 358 insertions(+), 77 deletions(-)

diff --git a/src/gui/timeline/clip-presenter.cpp b/src/gui/timeline/clip-presenter.cpp
index 8a749412e..098fd7a8b 100644
--- a/src/gui/timeline/clip-presenter.cpp
+++ b/src/gui/timeline/clip-presenter.cpp
@@ -25,6 +25,7 @@
  ** Implementation details of clip presentation management.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/clip-presenter.hpp b/src/gui/timeline/clip-presenter.hpp
index 86876bce1..5ecd0df1d 100644
--- a/src/gui/timeline/clip-presenter.hpp
+++ b/src/gui/timeline/clip-presenter.hpp
@@ -44,6 +44,7 @@
  ** clips, just to indicate some content is actually present in this part of the timeline.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/layout-manager.cpp b/src/gui/timeline/layout-manager.cpp
index 24d6b9b10..0fbcf6ba1 100644
--- a/src/gui/timeline/layout-manager.cpp
+++ b/src/gui/timeline/layout-manager.cpp
@@ -25,6 +25,7 @@
  ** Implementation details of global timeline layout management. 
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/layout-manager.hpp b/src/gui/timeline/layout-manager.hpp
index fb13c20f3..1f7bf5b2f 100644
--- a/src/gui/timeline/layout-manager.hpp
+++ b/src/gui/timeline/layout-manager.hpp
@@ -72,6 +72,7 @@
  ** [MVP pattern](https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93presenter) here.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/marker-widget.cpp b/src/gui/timeline/marker-widget.cpp
index 52d6760f0..0208ea27b 100644
--- a/src/gui/timeline/marker-widget.cpp
+++ b/src/gui/timeline/marker-widget.cpp
@@ -25,6 +25,7 @@
  ** Implementation of marker display.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/marker-widget.hpp b/src/gui/timeline/marker-widget.hpp
index e1e5c9e84..63e014b8d 100644
--- a/src/gui/timeline/marker-widget.hpp
+++ b/src/gui/timeline/marker-widget.hpp
@@ -30,6 +30,7 @@
  ** may receive messages over the UI-Bus.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index 80135b2c1..985b556e5 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -32,7 +32,7 @@
  ** - thus we get a rather simple mapping, with some fixed attributes and no
  **   flexible child collection. The root track is implemented as TrackPresenter.
  ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** @see TimelineWidget
  ** 
  */
diff --git a/src/gui/timeline/timeline-controller.hpp b/src/gui/timeline/timeline-controller.hpp
index 23b78b782..44df1e57c 100644
--- a/src/gui/timeline/timeline-controller.hpp
+++ b/src/gui/timeline/timeline-controller.hpp
@@ -45,7 +45,7 @@
  ** - these in turn manage a set of ClipPresenter entities
  ** - and those presenters care for injecting suitable widgets into the TimelineWidget's parts.
  ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 52a9bc824..cbb72058c 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -24,7 +24,7 @@
 /** @file timeline/timeline-widget.cpp
  ** Implementation details of Lumiera's timeline display widget.
  ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
+ ** @todo as of 10/2018 a complete rework of the timeline display is underway
  ** @see timeline-controller.cpp
  ** 
  */
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index f968b3849..f8c7a7181 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -47,7 +47,7 @@
  ** is `sigc::trackable`, which means after destruction any further signals
  ** will be silently ignored.
  ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
+ ** @todo as of 10/2018 a complete rework of the timeline display is underway
  ** 
  */
 
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index cc6e3e993..bce8ed079 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -25,6 +25,7 @@
  ** Implementation details of track presentation management.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
@@ -85,10 +86,11 @@ namespace timeline {
   
   /**
    * @note we distinguish between the contents of our three nested child collections
-   *       based on the symbolic type field send in the Record type within the diff representation
+   *       based on the symbolic type field sent in the Record type within the diff representation
    *       - "Marker" designates a Marker object
    *       - "Clip" designates a Clip placed on this track
    *       - "Fork" designates a nested sub-track
+   * @see TimelineController::buildMutator() for a basic explanation of the data binding mechanism
    */
   void
   TrackPresenter::buildMutator (TreeMutator::Handle buffer)
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index 41df348f5..9e71323d4 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -24,7 +24,7 @@
 /** @file track-presenter.hpp
  ** Presentation control element to model and manage a track within the timeline UI.
  ** In the Lumiera timeline UI, we are mixing two different scope of concerns: For one,
- ** we have the globally tangible scope of actual session elements an operations performed
+ ** we have the globally tangible scope of actual session elements and operations performed
  ** on those. And then there are more local considerations regarding the "mechanics" of the
  ** UI elements, their state and immediate feedback to user interactions. The _Presenter_ --
  ** as known from the [MVP pattern](https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93presenter) --
@@ -36,9 +36,10 @@
  ** part of layout building, delegating to a mostly passive GTK widget for the actual display.
  ** This way it becomes possible to manage the actual UI resources on a global level, avoiding to
  ** represent potentially several thousand individual elements as GTK entities, while at any time
- ** only several can be visible and active as far as user interaction is concerned.
+ ** only a small number of elements can be visible and active as far as user interaction is concerned.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
  ** 
  */
 
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 655a0034a..a6a6f8ceb 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -1997,7 +1997,7 @@ Some observations:
 * Optimisation achieves access times around ≈ 1ns
 </pre>
 </div>
-<div title="DesignDecisions" modifier="Ichthyostega" created="200801062209" modified="201505310104" tags="decision design discuss Concepts" changecount="5">
+<div title="DesignDecisions" modifier="Ichthyostega" created="200801062209" modified="201810071730" tags="decision design discuss Concepts" changecount="6">
 <pre>Along the way of working out various [[implementation details|ImplementationDetails]], decisions need to be made on how to understand the different facilities and entities and how to tackle some of the problems. This page is mainly a collection of keywords, summaries and links to further the discussion. And the various decisions should allways be read as proposals to solve some problem at hand...
 
 ''Everything is an object'' &amp;mdash; yes of course, that's a //no-brainer,// todays. Rather, important is to note what is not &quot;an object&quot;, meaning it can't be arranged arbitrarily
@@ -2011,6 +2011,8 @@ We ''separate'' processing (rendering) and configuration (building). The [[Build
 ''Objects are [[placed|Placement]] rather'' than assembled, connected, wired, attached. This is more of a rule-based approach and gives us one central metaphor and abstraction, allowing us to treat everything in an uniform manner. You can place it as you like, and the builder tries to make sense out of it, silently disabling what doesn't make sense.
 An [[Sequence]] is just a collection of configured and placed objects (and has no additional, fixed structure). [[&quot;Tracks&quot; (forks)|Fork]] form a mere organisational grid, they are grouping devices not first-class entities (a track doesn't &quot;have&quot; a pipe or &quot;is&quot; a video track and the like; it can be configured to behave in such manner by using placements though). [[Pipes|Pipe]] are hooks for making connections and are the only facility to build processing chains. We have global pipes, and each clip is built around a lokal [[source port|ClipSourcePort]] &amp;mdash; and that's all. No special &quot;media viewer&quot; and &quot;arranger&quot;, no special role for media sources, no commitment to some fixed media stream types (video and audio). All of this is sort of pushed down to be configuration, represented as asset of some kind. For example, we have [[processing pattern|ProcPatt]] assets to represent the way of building the source network for reading from some media file (including codecs treated like effect plugin nodes)
 
+The model in Proc-Layer is rather an //internal model.// What is exposed globally, is a structural understanding of this model. In this structural understanding, there are Assets and ~MObjects, which both represent the flip side of the same coin: Assets relate to bookkeeping, while ~MObjects relate to building and manipulation of the model. In the actual data represntation within the HighLevelModel, we settled upon some internal reductions, preferring either the //Asset side// or the //~MObject side// to represent some relevant entities. See &amp;rarr; AssetModelConnection.
+
 Actual ''media data and handling'' is abstracted rigorously. Media is conceived as being stream-like data of distinct StreamType. When it comes to more low-level media handling, we build on the DataFrame abstraction. Media processing isn't the focus of Lumiera; we organise the processing but otherwise ''rely on media handling libraries.'' In a similar vein, multiplicity is understood as type variation. Consequently, we don't build an audio and video &quot;section&quot; and we don't even have audio tracks and video tracks. Lumiera uses tracks and clips, and clips build on media, but we're able to deal with [[multichannel|MultichannelMedia]] mixed-typed media natively.
 
 Lumiera is not a connection manager, it is not an audio-visual real time performance instrument, and it doesn't aim at running presentations. It's an ''environment for assembling and building up'' something (an edit, a session, a piece of media work). This decision is visible at various levels and contexts, like a reserved attitude towards hardware acceleration (it //will// be supported, but reliable proxy editing has a higher priority), or the decision, not to incorporate system level ports and connections directly into the session model (they are mapped to [[output designations|OutputDesignation]] rather)
@@ -2686,7 +2688,7 @@ As starting point, {{red{in winter 2016/17}}} the old (broken) timeline panel wa
 After that initial experiments, my focus shifted to the still unsatisfactory top-level UI structure, and I am working towards an initial integration with Proc-Layer since then.
 </pre>
 </div>
-<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201708311414" tags="GuiPattern design draft" changecount="25">
+<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201810071842" tags="GuiPattern design draft" changecount="27">
 <pre>//The representation of a [[media clip|Clip]] for manipulation by the user within the UI.//
 Within Lumiera, a clip is conceived as a //chunk of media,// which can be handled in compound. Clip as such is an abstract concept, which is treated with minimal assumptions...
 * we know that a clip has //media content,// which need not be uniform and can be inherently structured (e.g. several media, several channels)
@@ -2720,7 +2722,7 @@ Starting from the architecture as predetermined by the UI-Bus, it is clear that
 !!!how to carry out the clip appearances
 Initially, one could think that we'd need to build several widgets to realise the wide variety of clip appearances. But in fact it turns out that we're able to reshape a single base widget to encompass all the necessary presentation styles. This base widget is a simple, one-element container, with {{{Gtk::Frame}}} being the most obvious pick. This gives us already a rectangular covered space, and the ability to add a label widget, optionally with controlled alignment of the label. All the more elaborate presentation styles can be achieved by adding a canvas widget into this frame and then placing additional stuff on top of that. The only tricky part arises in overview display, when just some clip rectangle can stand-in for a whole series of clips, which themselves remain hidden as UI elements.
 
-A prime consideration regarding this whole clip presentation strategy is the performance concern. It is quite common for movie edits to encompass several hundred individual clips. Combined with several tracks and an elaborate audio edit, it may well happen that we end up with thousands of individual UI objects. If treated naively, this load might seriously degrade the responsiveness of the interface. Thus we need to care for the relevant infrastructure to enable optimisation of the display. For that reason, the memory footprint of the ClipPresenter and the basic widget has to be kept as small as possible. And moreover, since we do our own layout management in the timeline display, in theory it is possible any time just to add those widgets to the enclosing GTK container, which are actually about to become visible. (if we follow this approach, a problem yet to be solved is how to remove widgets falling out of sight, since removing N widgets easily turns into a quadratic operation).
+A prime consideration regarding this whole clip presentation strategy is the performance concern. It is quite common for movie edits to encompass several hundred individual clips. Combined with several tracks and an elaborate audio edit, it may well happen that we end up with thousands of individual UI objects. If treated naively, this load might seriously degrade the responsiveness of the interface. Thus we need to care for the relevant infrastructure to enable optimisation of the display. For that reason, the memory footprint of the ClipPresenter and the basic widget has to be kept as small as possible. And moreover, since we do our own layout management in the timeline display, in theory it is possible //only to add// those widgets to the enclosing GTK container, which are //actually about to become visible.// (if we follow this approach, a problem yet to be solved is how to remove widgets falling out of sight, since removing N widgets easily turns into a quadratic operation).
 
 !clip content rendering
 In a typical editing application, the user can expect to get some visual clue regarding the media content of a clip. For example, sound clips can be visualised as waveform, while movie clips might feature a sequence of images taken from the video. Our intention is to ''use our own rendering engine'' to produce these thumbnails. In fact, our engine is perfectly suited for this task: it has precisely the necessary media decoding and rendering abilities, plus it offers an elaborate system of priorities and deadlines, allowing to throttle the load produced by thumbnail generation. In addition to all those qualities, our engine is planned to be complemented by an &quot;intelligent&quot; frame cache, which, given proper parametrisation, ensures the frequently requested thumbnails will be available for quick display. For this approach to work, we need to provide some infrastructure
@@ -2730,7 +2732,7 @@ In a typical editing application, the user can expect to get some visual clue re
 * we still need to work out how buffer management for this task will be handled; it should be a derivative of typical buffer management for display rendering.
 * the clip widget needs to provide a simple placeholder drawing to mark the respective space in the interface, until the actual preview arrives.
 
-To start with, mostly this means to avoid a naive approach, like having code in the UI to pull in some graphics from media files. We certainly won't just render every media channel blindly. Rather, we acknowledge that we'll have a //strategy,// depending on the media content and some further parameters of the clip. This might well just be a single ''pivot image'' chosen explicitly by the editor to represent a given take. And the actual implementation of content preview rendering will largely be postponed until we get our rendering engine into a roughly working state.
+To start with, mostly this means to avoid a naive approach, like having code in the UI to pull in some graphics from media files. We certainly won't just render every media channel blindly. Rather, we acknowledge that we'll have a //strategy,// depending on the media content and some further parameters of the clip. This might well just be a single ''pivot image'' chosen explicitly by the editor to represent a given take. Seemingly, the proper place to hose that display strategy is ''within the session model'', not within the UI. And the actual implementation of content preview rendering will largely be postponed until we get our rendering engine into a roughly working state.
 </pre>
 </div>
 <div title="GuiCommandAccess" creator="Ichthyostega" modifier="Ichthyostega" created="201704131649" modified="201704171822" tags="spec draft GuiPattern GuiIntegration" changecount="22">
@@ -3423,7 +3425,7 @@ In accordance with the Lumiera application architecture in general, the UI is no
 <pre>A specially configured LumieraPlugin, which actually contains or loads the complete code of the (GTK)GUI, and additionally is linked dynamically against the application core lib. During the [[UI startup process|GuiStart]], loading of this Plugin is triggered from {{{main()}}}. Actually this causes spawning of the GTK event thread and execution of the GTK main loop.
 </pre>
 </div>
-<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201803102227" tags="GuiPattern design decision draft img" changecount="50">
+<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810071735" tags="GuiPattern design decision draft img" changecount="51">
 <pre>Within the Lumieara GUI, the [[Timeline]] structure(s) from the HighLevelModel are arranged and presented according to the following principles and conventions.
 Several timeline views may be present at the same time -- and there is not necessarily a relation between them, since »a Timeline« is the top-level concept within the [[Session]]. Obviously, there can also be several //views// based on the same »Timeline« model element, and in this latter case, these //coupled views// behave according to a linked common state. An entity »Timeline« as represented through the GUI, emerges from the combination of several model elements
 * a root level [[Binding|BindingMO]] acts as framework
@@ -3436,7 +3438,7 @@ Several timeline views may be present at the same time -- and there is not neces
 Session, Binding and Sequence are the mandatory ingredients.
 
 !Basic layout
-[&gt;img[Clip presentation control|draw/UI-TimelineLayout-1.png]]The representation is split into a ''Header pane'' exposing structure and configuration, and a ''Content pane'' extending in time. The ''Time ruler'' running alongside the top of the content pane represents the //position in time.// Beyond this temporal dimension, the content area is conceived as a flexible working space. This working space //can// be structured hierarchically -- when interacting with the GUI, hierarchical nesting will be created and collapsed on demand. Contrast this with conventional editing applications which are built upon the rigid notion of &quot;Tracks&quot;: Lumiera is based on //Pipes// rather than Tracks.
+[&gt;img[Clip presentation control|draw/UI-TimelineLayout-1.png]]The representation is split into a ''Header pane'' exposing structure and configuration, and a ''Content pane'' extending in time. The ''Time ruler'' running alongside the top of the content pane represents the //position in time.// Beyond this temporal dimension, the content area is conceived as a flexible working space. This working space //can// be structured hierarchically -- when interacting with the GUI, hierarchical nesting will be created and collapsed on demand. Contrast this with conventional editing applications which are built upon the rigid notion of &quot;Tracks&quot;: Lumiera is based on //Pipes// and //Scopes// rather than Tracks.
 
 In the temporal dimension, there is the usual scrolling and zooming of content, and possibly a selected time range, and after establishing a ViewerPlayConnection, there is an effective playback location featured as a &quot;Playhead&quot;
 The workspace dimension (vertical layout) is more like a ''Fork'', which can be expanded recursively. More specifically, each strip or layer or &quot;track&quot; can be featured in //collapsed// or //expanded state.//
@@ -3469,7 +3471,7 @@ In the most general case, there can be per-track content and nested content at t
 &amp;rarr; important question: how to [[organise the widgets|GuiTimelineWidgetStructure]]
 </pre>
 </div>
-<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201808311806" tags="GuiPattern discuss decision impl" changecount="86">
+<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810071821" tags="GuiPattern discuss decision impl" changecount="87">
 <pre>The Timeline is probably the most prominent place in the GUI where we need to come up with a custom UI design.
 Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also means to write one or several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 Gui, as implemented currently, did already take some steps along this route, yet this kind of decision should be cast and documented explicitly (be it after the fact).
 
@@ -3514,7 +3516,7 @@ Applying a diff changes the structure, that is, the structure of the local model
 * when a model element happens to be destructed, the corresponding display element has to be removed.
 * such might be triggered indirectly, by clean-up of leftovers, since the {{{DiffApplicator}}} re-orders and deletes by leaving some data behind
 * the diff also re-orders model elements, which does not have an immediate effect on the display, but needs to be interpreted separately.
-Together this means we get a fix up stage after model changes, where the display is re-adjusted to fit the new situation. This works in concert with the [[display manager|TimelineDisplayManager]] representing only those elements as actual widgets, which get a real chance to become visible. This way we can build on the assumption that the actual number of widgets to be managed any time remains so small as to get away with simple linear list processing. It remains to be seen how far this assumption can be pushed -- the problem is that the GTK container components don't support anything beyond such simple linear list processing; there isn't even a call to remove all child widgets of a container in a single pass.
+Wrapping this together we get a fix up stage after model changes, where the display is re-adjusted to fit the new situation. This works in concert with the [[display manager|TimelineDisplayManager]] representing only those elements as actual widgets, which get a real chance to become visible. This way we can build on the assumption that the actual number of widgets to be managed any time remains so small as to get away with simple linear list processing. It remains to be seen how far this assumption can be pushed -- the problem is that the GTK container components don't support anything beyond such simple linear list processing; there isn't even a call to remove all child widgets of a container in a single pass.
 </pre>
 </div>
 <div title="GuiTopLevel" creator="Ichthyostega" modifier="Ichthyostega" created="201701261944" modified="201708311555" tags="GuiPattern spec draft" changecount="12">
@@ -3545,7 +3547,7 @@ Together, these entities form a cohesive circle of collaborating global managers
 Within the UI-Layer, we distinguish between //core concerns and UI concerns,// the latter encompassing anything related to UI mechanics, presentation state, interaction state and InteractionControl. Core concerns are delegated and handled by the lower layers of the architecture, while the UI plays a passive role. This is a fundamental decision and leads to a dichotomy, where -- depending on the context -- a given part might operate as a slave related to core concerns, while taking a leading or controlling position when it comes to UI concerns. Deliberately, both sides are bridged by being interwoven into the same entities, and any entity of relevance to core concerns is also attached to the UI-Bus. Regarding the build-up of the UI, parts and elements are made visible and accessible through widgets, but widgets are created, installed and operated by controllers. The top-level circle defines global actions, which are passed through the relevant controller to come into effect.
 </pre>
 </div>
-<div title="HighLevelModel" modifier="Ichthyostega" created="200808152311" modified="201505310109" tags="Model spec design discuss img" changecount="2">
+<div title="HighLevelModel" modifier="Ichthyostega" created="200808152311" modified="201810071649" tags="Model spec design discuss img" changecount="3">
 <pre>While the low-level model holds the data used for carrying out the actual media data processing (=rendering), the high-level model is what the user works upon when performing edit operations through the GUI (or script driven in &amp;raquo;headless mode&amp;laquo;). Its building blocks and combination rules determine largely what structures can be created within the [[Session]].
 On the whole, it is a collection of [[media objects|MObjects]] stuck together and arranged by [[placements|Placement]].
 
@@ -3577,12 +3579,12 @@ Within Lumiera, &quot;tracks&quot; (actually implemented as [[forks|Fork]]) are
 
 As placements have the ability to cooperate and derive any missing placement specifications, this creates a hierarchical structure throughout the session, where parts on any level behave similar if applicable. For example, when a fork (&quot;track&quot;) is anchored to some external entity (label, sync point in sound, etc), all objects placed relatively to this track will adjust and follow automatically. This relation between the track tree and the individual objects is especially important for the wiring, which, if not defined locally within an ~MObject's placement, is derived by searching up this track tree and utilizing the wiring plug locating pins found there, if applicable. In the default configuration, the placement of an sequence's root track contains a wiring plug for video and another wiring plug for audio. This setup is sufficient for getting every object within this sequence wired up automatically to the correct global output pipe. Moreover, when adding another wiring plug to some sub track, we can intercept and reroute the connections of all objects creating output of this specific stream type within this track and on all child tracks.
 
-Besides routing to a global pipe, wiring plugs can also connect to the source port of an ''meta-clip''. In this example session, the outputs of ~Seq-2 as defined by locating pins in it's root track's placement, are directed to the source ports of a [[meta-cllip|VirtualClip]] placed within ~Seq-1. Thus, within ~Seq-1, the contents of ~Seq-2 appear like a pseudo-media, from which the (meta) clip has been taken. They can be adorned with effects and processed further completely similar to a real clip.
+Besides routing to a global pipe, wiring plugs can also connect to the source port of an ''meta-clip''. In this example session, the outputs of 'Seq-2' as defined by locating pins in it's root track's placement, are directed to the source ports of a [[meta-cllip|VirtualClip]] placed within 'Seq-1'. Thus, within 'Seq-1', the contents of 'Seq-2' appear like a pseudo-media, from which the (meta) clip has been taken. They can be adorned with effects and processed further completely similar to a real clip.
 
 Finally, this example shows an ''automation'' data set controlling some parameter of an effect contained in one of the global pipes. From the effect's POV, the automation is simply a ParamProvider, i.e a function yielding a scalar value over time. The automation data set may be implemented as a bézier curve, or by a mathematical function (e.g. sine or fractal pseudo random) or by some captured and interpolated data values. Interestingly, in this example the automation data set has been placed relatively to the meta clip (albeit on another track), thus it will follow and adjust when the latter is moved.
 </pre>
 </div>
-<div title="ImplementationDetails" modifier="Ichthyostega" created="200708080322" modified="201712101756" tags="overview" changecount="6">
+<div title="ImplementationDetails" modifier="Ichthyostega" created="200708080322" modified="201810071720" tags="overview" changecount="8">
 <pre>This wiki page is the entry point to detail notes covering some technical decisions, details and problems encountered in the course of the years, while building the Lumiera application.
 
 * [[Packages, Interfaces and Namespaces|InterfaceNamespaces]]
@@ -3619,6 +3621,7 @@ Finally, this example shows an ''automation'' data set controlling some paramete
 * how to shape the GuiConnection: with the help of a mediating GuiModel, which acts as UI-Bus, exchanging TreeDiffModel messages for GuiModelUpdate
 * shape the Backbone of the UI, the UI-Bus and the GuiTopLevel
 * build a framework for InteractionControl in the User Interface
+* establish a flexible layout structure for the GuiTimelineView
 </pre>
 </div>
 <div title="ImplementationGuidelines" modifier="Ichthyostega" created="200711210531" modified="201310132316" tags="Concepts design discuss" changecount="1">
@@ -5950,7 +5953,7 @@ The backbone of the Lumiera UI is arranged such as to produce a data feed with s
 Run as part of the UiCoreServices, it is attached to the UI-Bus and listens to all ''state mark messages'' to distil the notion of relevant current state.
 On a basic level, the task is to group and store those messages in a way as to overwrite previous messages with new updates on the level of individual properties. Beyond that, there is the sensitivity to context, presentation perspective and work site, which means to impose an additional structure on this basic ''state snapshot'', to extract and replicate structured sets of state information.</pre>
 </div>
-<div title="ProblemsTodo" modifier="Ichthyostega" created="200708050524" modified="201602162247" tags="design discuss" changecount="7">
+<div title="ProblemsTodo" modifier="Ichthyostega" created="200708050524" modified="201810071724" tags="design discuss" changecount="9">
 <pre>Open issues, Things to be worked out, Problems still to be solved... 
 
 !!Parameter Handling
@@ -5987,9 +5990,10 @@ We need to work out guidelines for dealing with operations going on simultaneous
 
 !!the perils of data representation
 In software development, there is a natural inclination to cast &quot;reality&quot; into data, the structure of which has to be nailed down first. Then, everyone might &quot;access reality&quot; and work on it. Doing so might sounds rational, natural, even self-evident and sound, yet as compelling as it might be, this approach is fundamentally flawed. It is known to work well only for small, &quot;handsome&quot; projects, where you clearly know up-front what you're up to: namely to get away, after being paid, before anyone realises the fact you've built something that looks nice but does not fit.
-So the challenge of any major undertaking in software construction is //not to build an universal model.// Rather, we want to arrive at something that can be made to fit. Over and over again.
+So the challenge of any major undertaking in software construction is //not to build an universal model of truth.// Rather, we want to arrive at something that can be made to fit.
+Which can be remoulded, over and over again, without breaking down.
 
-More specifically, we start building something, and while under way, our understanding sharpens, and we learn that actually we want something entirely different. Yet still we know what we need and  we don't want just something arbitrary. There is a constant core in what we're headed at, and we need the ability to //settle matters.// We need a backbone to work against, a skeleton to support us with its firmness, while also offering joints and links, to be bent and remoulded without breakage. The distinctive idea to make such possible is the principle of subsidiarity. The links and joints between autonomous centres can be shaped to be in fact an exchange, a handover based on common understanding of the //specific matters to deal with,// at that given joint.
+More specifically, we start building something, and while under way, our understanding sharpens, and we learn that actually we want something entirely different. Yet still we know what we need and  we don't want just something arbitrary. There is a constant core in what we're headed at, and we need the ability to //settle matters.// We need a backbone to work against, a skeleton to support us with its firmness, while also offering joints and links, to be bent and remoulded without breakage. The distinctive idea to make such possible is the principle of ''Subsidiarity''. The links and joints between autonomous centres can be shaped to be in fact an exchange, a handover based on common understanding of the //specific matters to deal with,// at that given joint.
 </pre>
 </div>
 <div title="Proc-Layer" modifier="Ichthyostega" created="200802031814" modified="201702101931" tags="def" changecount="1">
@@ -6895,7 +6899,7 @@ The concurrent nature of the problem is what makes this simple task somewhat mor
 * referrals to already known sequence points might be added later, and also from different threads ({{red{WIP 3/14}}} not sure if we need to expand on this observation -- see CalcStream &amp;hArr; Segment)
 This structure looks like requiring a message passing approach: we can arrange for determining the actual dependencies and fulfillment state late, within a single consumer, which is responsible for invoking the triggers. The other clients (threads) just pass messages into a possibly lock-free messageing channel.</pre>
 </div>
-<div title="Session" modifier="Ichthyostega" created="200712100525" modified="201612150345" tags="def SessionLogic" changecount="4">
+<div title="Session" modifier="Ichthyostega" created="200712100525" modified="201810071709" tags="def SessionLogic" changecount="7">
 <pre>The Session contains all information, state and objects to be edited by the User. From a users view, the Session is synonymous to the //current Project//. It can be [[saved and loaded|SessionLifecycle]]. The individual Objects within the Session, i.e. Clips, Media, Effects, are contained in one (or several) collections within the Session, which we call [[Sequence]].
 &amp;rarr; [[Session design overview|SessionOverview]]
 &amp;rarr; Structure of the SessionInterface
@@ -6910,6 +6914,7 @@ The Session object is a singleton &amp;mdash; actually it is a »~PImpl«-Facade
 * the [[Asset subsystem|AssetManager]] is tightly integrated; besides, there are some SessionServices for internal use
 
 &amp;rarr; see [[relation of timeline, sequences and objects|TimelineSequences]]
+&amp;rarr; see //clarification of some fine points// regarding [[relation of Assets and MObjects|AssetModelConnection]]
 
 
 !Session lifecycle
@@ -6962,7 +6967,7 @@ The session and the models rely on dependent objects beeing kept updated and con
 &amp;rarr; see [[details here...|ModelDependencies]]
 </pre>
 </div>
-<div title="SessionInterface" modifier="Ichthyostega" created="200904242108" modified="201701140715" tags="SessionLogic GuiIntegration design draft discuss" changecount="9">
+<div title="SessionInterface" modifier="Ichthyostega" created="200904242108" modified="201810071716" tags="SessionLogic GuiIntegration design draft discuss" changecount="12">
 <pre>&quot;Session Interface&quot; has several meanings, depending on the context.
 ;application global
 :the session is a data structure, which can be saved and loaded, and manipulated by [[sending commands|CommandHandling]]
@@ -7006,6 +7011,10 @@ To the contrary, the ''generic'' API is related to a //current location (state),
 * to add
 * to destroy
 
+!!relation of [[Assets|Asset]] and MObjects
+{{red{WARNING -- still under construction 10/2018}}}. Basically these segments represent the flip sides of the same coin. //Assets relate to the bookkeeping view.// However, we build a data model, and thus use representations for the involved entities. This creates some redundancy at times; we made an effort to reduce this redundancy and minimise the necessary data model representation. This means, some things are rather handled and represented as Assets, while other stuff is primarily dealt with as ~MObject.
+&amp;rarr; see //discussion of some fine points// regarding [[relation of Assets and MObjects|AssetModelConnection]]
+
 !!exploring session contents
 Typically, the list of timelines serves as starting point for exploring the model. Basically, any kind of object could be attached everywhere, but both the GUI and the Builder rely on assumptions regarding the [[overall model structure|HighLevelModel]] &amp;mdash; silently ignoring content not in line. This corresponds to the //dedicated API functions// on specific kinds of objects, which allow to retrieve content according to this assumed structure conveniently and with strong typing. From the timeline and the associated sequence you'll get the root track, and from there the sub-tracks and the clips located on them, which in turn may have attachments (effects, transitions, labels).
 On the other hand, arbitrary structures can be retrieved using the //generic API:// Contents can be discovered on the QueryFocus, which automatically follows the //point of mutation,// but can be moved to any point using the {{{QueryFocus::attach(obj)}}} function.
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 30f3dc6c2..e77f228e0 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -38,15 +38,18 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1501940591109" ID="ID_1925240675" MODIFIED="1538838811130" TEXT="#1099 DemoGuiRoundtrip">
+<node COLOR="#338800" CREATED="1501940591109" ID="ID_1925240675" MODIFIED="1538939588120" TEXT="#1099 DemoGuiRoundtrip">
 <arrowlink COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" STARTARROW="None" STARTINCLINATION="-7;605;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501940627280" ID="ID_1675066241" MODIFIED="1518487921039" TEXT="Dummy-Code im UI"/>
 <node CREATED="1501940632871" ID="ID_189611570" MODIFIED="1518487921039" TEXT="Dummy Proc-Command"/>
 <node CREATED="1501940639479" ID="ID_1314787910" MODIFIED="1518487921039" TEXT="komplettes Ping-Pong"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1538840404782" TEXT="DummySessionConnection">
-<arrowlink COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-9;-46;" ID="Arrow_ID_1867016690" STARTARROW="None" STARTINCLINATION="-34;70;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1538939700299" TEXT="#1042 DummySessionConnection">
+<arrowlink COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-36;-73;" ID="Arrow_ID_1867016690" STARTARROW="None" STARTINCLINATION="-34;70;"/>
+<arrowlink COLOR="#f9b709" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-37;-88;" ID="Arrow_ID_779644313" STARTARROW="None" STARTINCLINATION="-34;70;"/>
+<arrowlink COLOR="#f9b709" DESTINATION="ID_791449946" ENDARROW="Default" ENDINCLINATION="-842;-559;" ID="Arrow_ID_1347689482" STARTARROW="None" STARTINCLINATION="-81;124;"/>
+<arrowlink COLOR="#f9b709" DESTINATION="ID_1478381189" ENDARROW="Default" ENDINCLINATION="-1009;-357;" ID="Arrow_ID_1072548081" STARTARROW="None" STARTINCLINATION="-87;103;"/>
 <icon BUILTIN="idea"/>
 <node CREATED="1481320639544" ID="ID_1440497947" MODIFIED="1518487921039" TEXT="Singleton"/>
 <node CREATED="1481320642455" ID="ID_1938045938" MODIFIED="1518487921039" TEXT="hat fake Session content"/>
@@ -70,8 +73,7 @@
       <b><font color="#e01f1f">TODO</font></b>: Infos zusammentragen und dokumentieren
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1538839205056" ID="ID_1118716259" MODIFIED="1538839221765" TEXT="Lumiera Website -- Design-Sektion">
 <icon BUILTIN="info"/>
@@ -80,16 +82,17 @@
 <node CREATED="1531419242634" ID="ID_1022049727" MODIFIED="1531419624076" TEXT="Interfaces hochfahren">
 <arrowlink COLOR="#effa97" DESTINATION="ID_687951877" ENDARROW="Default" ENDINCLINATION="-545;-1640;" ID="Arrow_ID_1500281313" STARTARROW="None" STARTINCLINATION="-189;37;"/>
 </node>
-<node CREATED="1531419250684" ID="ID_1850773836" MODIFIED="1531419638651" TEXT="Verbindungsstrukturen installieren">
-<arrowlink COLOR="#fee998" DESTINATION="ID_176564515" ENDARROW="Default" ENDINCLINATION="-1211;-7367;" ID="Arrow_ID_157207334" STARTARROW="None" STARTINCLINATION="-579;123;"/>
+<node CREATED="1531419250684" ID="ID_1850773836" MODIFIED="1538938884955" TEXT="Verbindungsstrukturen installieren">
+<arrowlink COLOR="#fee998" DESTINATION="ID_176564515" ENDARROW="Default" ENDINCLINATION="-1211;-7367;" ID="Arrow_ID_157207334" STARTARROW="None" STARTINCLINATION="-617;103;"/>
 </node>
 </node>
 </node>
+<node CREATED="1538938685096" HGAP="138" ID="ID_511824194" MODIFIED="1538938734343" TEXT="gr&#xfc;nden" VSHIFT="42">
 <node CREATED="1477784793993" ID="ID_1868522177" MODIFIED="1518487921039" TEXT="Umbau">
 <linktarget COLOR="#bc4930" DESTINATION="ID_1868522177" ENDARROW="Default" ENDINCLINATION="221;282;" ID="Arrow_ID_600425644" SOURCE="ID_707273464" STARTARROW="None" STARTINCLINATION="1925;196;"/>
 <icon BUILTIN="hourglass"/>
-<node CREATED="1477784813895" FOLDED="true" ID="ID_1343270939" MODIFIED="1538840432473" TEXT="Model durch UI-Bus ersetzen">
-<linktarget COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-9;-46;" ID="Arrow_ID_1867016690" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
+<node CREATED="1477784813895" FOLDED="true" ID="ID_1343270939" MODIFIED="1538939012850" TEXT="Model durch UI-Bus ersetzen">
+<linktarget COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-36;-73;" ID="Arrow_ID_1867016690" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" SOURCE="ID_202253849" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1481320683706" ID="ID_1226263415" MODIFIED="1518487921039" TEXT="kl&#xe4;ren, wo der Bus aufgeh&#xe4;ngt wird">
@@ -1299,8 +1302,8 @@
 </node>
 <node COLOR="#338800" CREATED="1493753249399" FOLDED="true" HGAP="64" ID="ID_1023343635" MODIFIED="1538840125563" TEXT="#1098 hand-over in UI-Thread" VSHIFT="83">
 <linktarget COLOR="#a75677" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="-317;-24;" ID="Arrow_ID_274836249" SOURCE="ID_1146157818" STARTARROW="None" STARTINCLINATION="-647;-66;"/>
-<linktarget COLOR="#84c6b8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="21;233;" ID="Arrow_ID_1372135725" SOURCE="ID_995145542" STARTARROW="None" STARTINCLINATION="237;0;"/>
 <linktarget COLOR="#7caaa8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="2513;3565;" ID="Arrow_ID_1832047032" SOURCE="ID_489078622" STARTARROW="Default" STARTINCLINATION="3463;134;"/>
+<linktarget COLOR="#84c6b8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="21;233;" ID="Arrow_ID_1372135725" SOURCE="ID_995145542" STARTARROW="None" STARTINCLINATION="237;0;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501804992301" ID="ID_1647263044" MODIFIED="1538263469665" TEXT="schedule event"/>
 <node CREATED="1501804985286" ID="ID_320977714" MODIFIED="1538263469665" TEXT="GTK-Mechanismus">
@@ -1581,7 +1584,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1501939212693" FOLDED="true" ID="ID_1007296291" MODIFIED="1538839532670" TEXT="#1099 DemoGuiRoundtrip">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1501939212693" FOLDED="true" ID="ID_1007296291" MODIFIED="1538939588120" TEXT="#1099 DemoGuiRoundtrip">
 <linktarget COLOR="#e5e53f" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-931;34;" ID="Arrow_ID_1440938291" SOURCE="ID_1925240675" STARTARROW="None" STARTINCLINATION="-7;605;"/>
 <linktarget COLOR="#f0eca5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="881;2029;" ID="Arrow_ID_1736540527" SOURCE="ID_1456159316" STARTARROW="None" STARTINCLINATION="418;-44;"/>
 <linktarget COLOR="#ebf0a5" DESTINATION="ID_1007296291" ENDARROW="Default" ENDINCLINATION="-3154;1704;" ID="Arrow_ID_1091720734" SOURCE="ID_1098045534" STARTARROW="None" STARTINCLINATION="1627;38;"/>
@@ -2119,8 +2122,7 @@
       erscheint <b>definitiv nicht</b>&#160;als CSS-Node
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1537661787387" ID="ID_20967740" MODIFIED="1538263469668" TEXT="vorl&#xe4;ufig hart verdrahten">
@@ -2309,8 +2311,7 @@
       dieser Fall d&#252;rfte h&#228;ufiger auftreten
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1538618157537" ID="ID_1728464265" MODIFIED="1538707385953" TEXT="Problem: kaputtes Stylesheet">
@@ -2356,8 +2357,7 @@
       normalen 'light' destkop-theme verwenden kann
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -3909,8 +3909,7 @@
       #1174 UI self diagnostics window
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -5184,12 +5183,151 @@
 </node>
 <node CREATED="1477784829157" ID="ID_1998357180" MODIFIED="1518487921059" TEXT="Icon-Laden modernisieren"/>
 <node CREATED="1477784821925" ID="ID_1871474250" MODIFIED="1518487921059" TEXT="Styling aufr&#xe4;umen">
-<node CREATED="1477784846162" ID="ID_1164942946" MODIFIED="1534336601077" TEXT="siehe Info zum CssProvider">
-<arrowlink COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" STARTARROW="None" STARTINCLINATION="-756;164;"/>
+<node CREATED="1477784846162" ID="ID_1164942946" MODIFIED="1538938881467" TEXT="siehe Info zum CssProvider">
+<arrowlink COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" STARTARROW="None" STARTINCLINATION="-840;95;"/>
 </node>
 </node>
 </node>
-<node CREATED="1534336252375" HGAP="27" ID="ID_1755017021" MODIFIED="1534336284856" TEXT="Hilfsmittel">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1538938570760" HGAP="57" ID="ID_1165433334" MODIFIED="1538938919530" TEXT="Neubau" VSHIFT="41">
+<font NAME="SansSerif" SIZE="16"/>
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538938751743" ID="ID_243888746" MODIFIED="1538939191206">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      &#187;die <b>Timeline</b>&#171;
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_330280074" MODIFIED="1538939829985">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <u>Aufgabe</u>: <i><font size="4" color="#821b58">populate timeline</font></i>
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#f9b709" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-37;-88;" ID="Arrow_ID_779644313" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942842294" ID="ID_1752483939" MODIFIED="1538942914255" TEXT="minimalen Diff f&#xfc;r eine Timeline">
+<icon BUILTIN="hourglass"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942872402" ID="ID_932408081" MODIFIED="1538942917252" TEXT="Panel wird erzeugt">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942878609" ID="ID_689625343" MODIFIED="1538942918061" TEXT="Timeline-Tab wird belegt">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942890792" ID="ID_642469734" MODIFIED="1538942918893" TEXT="hat einen Track">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942901590" ID="ID_758238752" MODIFIED="1538942919668" TEXT="ein Clip erscheint">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943061633" ID="ID_1972040317" MODIFIED="1538943071622" TEXT="minimale Feedback-Aktionen">
+<icon BUILTIN="hourglass"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943095252" ID="ID_1784185766" MODIFIED="1538943103396" TEXT="drag clip">
+<icon BUILTIN="hourglass"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943104651" ID="ID_948012732" MODIFIED="1538943111616" TEXT="delete clip">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1231562526" MODIFIED="1538942179606" TEXT="Timeline Panel bauen">
+<arrowlink COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" STARTARROW="None" STARTINCLINATION="860;206;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941158698" ID="ID_513093052" MODIFIED="1538941168250" TEXT="vorl&#xe4;ufiger Allokator">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941253181" ID="ID_1144811315" MODIFIED="1538941261333" TEXT="multi-Tab-Anzeige">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1325225528" MODIFIED="1538942777237" TEXT="Aktion re-Locate">
+<arrowlink COLOR="#fec680" DESTINATION="ID_1992201258" ENDARROW="Default" ENDINCLINATION="-784;-81;" ID="Arrow_ID_126634995" STARTARROW="None" STARTINCLINATION="651;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_977311190" MODIFIED="1538942745433" TEXT="Aktion re-Populate">
+<arrowlink COLOR="#fec680" DESTINATION="ID_501539344" ENDARROW="Default" ENDINCLINATION="-1280;-81;" ID="Arrow_ID_938812574" STARTARROW="None" STARTINCLINATION="335;22;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538939781588" ID="ID_1327960211" MODIFIED="1538941006508" TEXT="Timeline Widget bauen">
+<arrowlink COLOR="#7d91d6" DESTINATION="ID_1613745412" ENDARROW="Default" ENDINCLINATION="-63;-32;" ID="Arrow_ID_1377777978" STARTARROW="None" STARTINCLINATION="-144;16;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941097739" ID="ID_368023009" MODIFIED="1538941108922" TEXT="Klassen anlegen und verdrahten">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941119416" ID="ID_1730845721" MODIFIED="1538941137142" TEXT="Panel">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941122447" ID="ID_1577513149" MODIFIED="1538941137758" TEXT="Widget">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941130390" ID="ID_813480105" MODIFIED="1538941138254" TEXT="Controller">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941132710" ID="ID_878237612" MODIFIED="1538941138658" TEXT="Presenter">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_693425928" MODIFIED="1538940850051" TEXT="Timeline-Controller bauen">
+<arrowlink COLOR="#fec680" DESTINATION="ID_391329400" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1839172502" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1570849604" MODIFIED="1538940618074" TEXT="Presenter bauen">
+<arrowlink COLOR="#fec680" DESTINATION="ID_1306244096" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_951723874" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<arrowlink COLOR="#fec680" DESTINATION="ID_834517953" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_483670351" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538939792267" ID="ID_1104238784" MODIFIED="1538940929797" TEXT="Pr&#xe4;sentation bauen">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_758873433" MODIFIED="1538941897853" TEXT="Layout-Control">
+<arrowlink COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1131206858" MODIFIED="1538940576088" TEXT="konkrete Anzeige">
+<arrowlink COLOR="#fec680" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_506785204" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<arrowlink COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_435369727" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538938796825" ID="ID_1428561726" MODIFIED="1538938927517">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      &#187;der <b>Viewer</b>&#171;
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1538938835228" ID="ID_1454224639" MODIFIED="1538938956750" TEXT="&#xbb;Properties&#xab;">
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1538938838779" ID="ID_112266805" MODIFIED="1538938959925" TEXT="&#xbb;Assets&#xab;">
+<icon BUILTIN="hourglass"/>
+</node>
+<node CREATED="1538938942294" ID="ID_59353951" MODIFIED="1538938962079" TEXT="&#xbb;Hilfe&#xab;">
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
+</node>
+<node CREATED="1534336252375" HGAP="216" ID="ID_1755017021" MODIFIED="1538938719705" TEXT="Hilfsmittel" VSHIFT="6">
 <node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine">
 <node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1537659720796" TEXT="primary widgets">
 <richcontent TYPE="NOTE"><html>
@@ -5222,7 +5360,9 @@
     </ul>
   </body>
 </html></richcontent>
-<node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1537659869395" TEXT="Timeline"/>
+<node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1538941006509" TEXT="Timeline">
+<linktarget COLOR="#7d91d6" DESTINATION="ID_1613745412" ENDARROW="Default" ENDINCLINATION="-63;-32;" ID="Arrow_ID_1377777978" SOURCE="ID_1327960211" STARTARROW="None" STARTINCLINATION="-144;16;"/>
+</node>
 <node CREATED="1537659870415" ID="ID_1181375258" MODIFIED="1537659875274" TEXT="Property-Grid"/>
 </node>
 <node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1537659851138" TEXT="building blocks">
@@ -5485,8 +5625,7 @@
       Im Zweifelsfall den GTK+ Inspector verwenden!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5795,8 +5934,8 @@
 <icon BUILTIN="info"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485457021805" ID="ID_1476863246" MODIFIED="1534511297619" TEXT="Gtk::UiManager ist deprecated">
-<linktarget COLOR="#6d7495" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="1126;-247;" ID="Arrow_ID_1941890495" SOURCE="ID_384827553" STARTARROW="None" STARTINCLINATION="-231;14;"/>
 <linktarget COLOR="#ae182e" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="283;-164;" ID="Arrow_ID_1851148216" SOURCE="ID_206480879" STARTARROW="Default" STARTINCLINATION="481;0;"/>
+<linktarget COLOR="#6d7495" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="1126;-247;" ID="Arrow_ID_1941890495" SOURCE="ID_384827553" STARTARROW="None" STARTINCLINATION="-231;14;"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493768617653" ID="ID_292624709" MODIFIED="1518487921060" TEXT="f&#xe4;llt anscheinend ersatzlos weg"/>
 <node CREATED="1493768625564" ID="ID_1620270152" MODIFIED="1518487921060" TEXT="Verdacht: stattdessen Gtk::Application"/>
@@ -5865,7 +6004,7 @@
 <font NAME="SansSerif" SIZE="15"/>
 <icon BUILTIN="idea"/>
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485549049388" FOLDED="true" ID="ID_530209145" MODIFIED="1538872130122" TEXT="Problem: Aktionen binden">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485549049388" FOLDED="true" ID="ID_530209145" MODIFIED="1538942497161" TEXT="Problem: Aktionen binden">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_530209145" ENDARROW="Default" ENDINCLINATION="-17;-195;" ID="Arrow_ID_626063593" SOURCE="ID_1022779645" STARTARROW="None" STARTINCLINATION="9;270;"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1485549075929" ID="ID_1887127861" MODIFIED="1518487921060" TEXT="spezifische Aktionen">
@@ -6473,7 +6612,7 @@
 <node CREATED="1487034180712" ID="ID_1371598611" MODIFIED="1518487921063" TEXT="und jedes genau wei&#xdf;, was die andern k&#xf6;nnen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1504393149140" FOLDED="true" HGAP="38" ID="ID_48107354" MODIFIED="1538872134971" TEXT="Addressierung" VSHIFT="55">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1504393149140" FOLDED="true" HGAP="38" ID="ID_48107354" MODIFIED="1538942531699" TEXT="Addressierung" VSHIFT="55">
 <arrowlink COLOR="#4f5d91" DESTINATION="ID_974158229" ENDARROW="Default" ENDINCLINATION="383;-2505;" ID="Arrow_ID_1832380552" STARTARROW="None" STARTINCLINATION="-597;127;"/>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="pencil"/>
@@ -6707,7 +6846,7 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504393295097" FOLDED="true" ID="ID_65709251" MODIFIED="1538871827278" TEXT="wie erreicht man einen ComponentView?">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504393295097" FOLDED="true" ID="ID_65709251" MODIFIED="1538942527510" TEXT="wie erreicht man einen ComponentView?">
 <arrowlink COLOR="#524f7b" DESTINATION="ID_385011645" ENDARROW="Default" ENDINCLINATION="353;-22;" ID="Arrow_ID_186523581" STARTARROW="None" STARTINCLINATION="1270;350;"/>
 <linktarget COLOR="#717686" DESTINATION="ID_65709251" ENDARROW="Default" ENDINCLINATION="-8;-209;" ID="Arrow_ID_1510990213" SOURCE="ID_173722644" STARTARROW="None" STARTINCLINATION="92;95;"/>
 <icon BUILTIN="pencil"/>
@@ -16343,7 +16482,7 @@
 <node CREATED="1504371285442" ID="ID_634013434" MODIFIED="1518487921076" TEXT="Allokation von ComponentViews">
 <arrowlink DESTINATION="ID_948587913" ENDARROW="Default" ENDINCLINATION="87;-34;" ID="Arrow_ID_1863964331" STARTARROW="None" STARTINCLINATION="157;10;"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" FOLDED="true" HGAP="38" ID="ID_1457876217" MODIFIED="1538872169254" TEXT="konkret" VSHIFT="16">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" FOLDED="true" HGAP="38" ID="ID_1457876217" MODIFIED="1538942417171" TEXT="konkret" VSHIFT="16">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1486768080502" ID="ID_1759740464" MODIFIED="1518487921076" TEXT="Binde-Kontext f&#xfc;r globale Aktionen"/>
 <node CREATED="1486768086869" ID="ID_173538981" MODIFIED="1518487921076" TEXT="Idee/Konzept f&#xfc;r kontextabh&#xe4;ngige Aktionen">
@@ -16704,7 +16843,16 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" FOLDED="true" ID="ID_629544763" MODIFIED="1538872241376" TEXT="Aufgabe: docking panels">
+<node CREATED="1538942597728" ID="ID_539326328" MODIFIED="1538942601611" TEXT="globale Aktionen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1992201258" MODIFIED="1538942777237" TEXT="re-locate Timeline View">
+<linktarget COLOR="#fec680" DESTINATION="ID_1992201258" ENDARROW="Default" ENDINCLINATION="-784;-81;" ID="Arrow_ID_126634995" SOURCE="ID_1325225528" STARTARROW="None" STARTINCLINATION="651;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538942638306" ID="ID_1819831711" MODIFIED="1538942662869" TEXT="View f&#xfc;r ein (weiterhin) bestehendes Model-Element in ein anderes Fenster umziehen">
+<icon BUILTIN="info"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1504193329508" FOLDED="true" ID="ID_629544763" MODIFIED="1538941661558" TEXT="Aufgabe: docking panels">
 <linktarget COLOR="#b0466a" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-849;-1967;" ID="Arrow_ID_1826422316" SOURCE="ID_1922506931" STARTARROW="None" STARTINCLINATION="690;23;"/>
 <linktarget COLOR="#d65a8e" DESTINATION="ID_629544763" ENDARROW="Default" ENDINCLINATION="-176;0;" ID="Arrow_ID_232994989" SOURCE="ID_196345177" STARTARROW="None" STARTINCLINATION="-162;-93;"/>
 <icon BUILTIN="pencil"/>
@@ -16979,8 +17127,8 @@
 <node CREATED="1485555999110" ID="ID_376092703" MODIFIED="1518487921078" TEXT="top-level macht GtkLumiera im ctor"/>
 <node CREATED="1485556011260" ID="ID_1618308499" MODIFIED="1518487921078" TEXT="backlink zum Manager"/>
 <node CREATED="1486943522965" ID="ID_36527267" MODIFIED="1518487921078" TEXT="top-level-Kontext">
-<linktarget COLOR="#4f547b" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="-424;-2038;" ID="Arrow_ID_134552555" SOURCE="ID_984712012" STARTARROW="None" STARTINCLINATION="2623;0;"/>
 <linktarget COLOR="#8c95b2" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="138;-548;" ID="Arrow_ID_1284182756" SOURCE="ID_576215675" STARTARROW="None" STARTINCLINATION="883;143;"/>
+<linktarget COLOR="#4f547b" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="-424;-2038;" ID="Arrow_ID_134552555" SOURCE="ID_984712012" STARTARROW="None" STARTINCLINATION="2623;0;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1488494592496" ID="ID_1586259377" MODIFIED="1518487921078" TEXT="UI-Bus"/>
 <node CREATED="1488494579346" ID="ID_1182508289" MODIFIED="1518487921078" TEXT="UiManager"/>
@@ -17813,7 +17961,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1480606888860" HGAP="25" ID="ID_899101975" MODIFIED="1518487921081" TEXT="Implementierung" VSHIFT="14">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480606888860" HGAP="25" ID="ID_899101975" MODIFIED="1538938514862" TEXT="Implementierung" VSHIFT="14">
 <icon BUILTIN="pencil"/>
 <node CREATED="1480606950372" ID="ID_1502878943" MODIFIED="1518487921081" TEXT="Grundstruktur">
 <node CREATED="1480639404070" ID="ID_506539007" MODIFIED="1518487921081" TEXT="HeaderPane">
@@ -17867,8 +18015,14 @@
 <node CREATED="1480807594822" ID="ID_333819085" MODIFIED="1518487921081" TEXT="f&#xfc;hre mal einen Marker-Typ ein"/>
 </node>
 </node>
+<node COLOR="#435e98" CREATED="1538957611472" ID="ID_1996849782" MODIFIED="1538957931290" TEXT="erwartet gem&#xe4;&#xdf; UI Modell-Schema">
+<arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" STARTARROW="None" STARTINCLINATION="823;93;"/>
+<icon BUILTIN="info"/>
 </node>
-<node CREATED="1480694550601" ID="ID_391329400" MODIFIED="1518487921081" TEXT="TimelineController">
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_391329400" MODIFIED="1538940840604" TEXT="TimelineController">
+<linktarget COLOR="#fec680" DESTINATION="ID_391329400" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1839172502" SOURCE="ID_693425928" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1480694557112" ID="ID_786517324" MODIFIED="1518487921081" TEXT="Widget ist Startpunkt"/>
 <node CREATED="1480694571310" ID="ID_1188786444" MODIFIED="1518487921081" TEXT="aber Controller wird Chef"/>
 <node CREATED="1480725633399" ID="ID_1475661668" MODIFIED="1518487921081" TEXT="mu&#xdf; erst mal Controller implementieren">
@@ -18286,11 +18440,15 @@
 </node>
 </node>
 </node>
-<node CREATED="1480606985087" ID="ID_885244508" MODIFIED="1518487921082" TEXT="Layout-Manager">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_562532566" MODIFIED="1538941874096" TEXT="Layout-Manager">
+<linktarget COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" SOURCE="ID_758873433" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1480639469981" ID="ID_983391388" MODIFIED="1518487921082" TEXT="Abstraktionen"/>
 <node CREATED="1480639473324" ID="ID_191170582" MODIFIED="1518487921082" TEXT="eval pass"/>
 </node>
-<node CREATED="1480606973713" ID="ID_163713350" MODIFIED="1518487921082" TEXT="Track-Presenter">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1306244096" MODIFIED="1538940563330" TEXT="Track-Presenter">
+<linktarget COLOR="#fec680" DESTINATION="ID_1306244096" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_951723874" SOURCE="ID_1570849604" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1480741594101" ID="ID_1017414696" MODIFIED="1518487921082" TEXT="mit doppeltem Display-Kontext verbinden"/>
 <node CREATED="1480741545196" ID="ID_1657879480" MODIFIED="1518487921082" TEXT="TrackWidget">
 <node CREATED="1480741552611" ID="ID_1987203186" MODIFIED="1518487921082" TEXT="erzeugen"/>
@@ -18309,11 +18467,15 @@
 </node>
 </node>
 </node>
-<node CREATED="1480607029673" ID="ID_619470641" MODIFIED="1518487921082" TEXT="Track-Anzeige">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1999928728" MODIFIED="1538940662367" TEXT="Track-Anzeige">
+<linktarget COLOR="#fec680" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_506785204" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1480607033512" ID="ID_1815699851" MODIFIED="1518487921082" TEXT="Kopf"/>
 <node CREATED="1480607035712" ID="ID_1405339006" MODIFIED="1518487921082" TEXT="Rumpf"/>
 </node>
-<node CREATED="1480621574221" ID="ID_1217785331" MODIFIED="1518487921082" TEXT="ClipPresenter">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_834517953" MODIFIED="1538940576088" TEXT="ClipPresenter">
+<linktarget COLOR="#fec680" DESTINATION="ID_834517953" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_483670351" SOURCE="ID_1570849604" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
 <node CREATED="1480741362389" ID="ID_328415412" MODIFIED="1518487921082" TEXT="ClipWidget">
 <node CREATED="1480741370347" ID="ID_1275685315" MODIFIED="1518487921082" TEXT="erzeugen"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480741374451" ID="ID_1270677756" MODIFIED="1518487921082" TEXT="in Display injizieren">
@@ -18344,6 +18506,14 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1240926804" MODIFIED="1538940674093" STYLE="fork" TEXT="Clip-Anzeige">
+<linktarget COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_435369727" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538940683586" ID="ID_1478100178" MODIFIED="1538940686198" TEXT="placeholder"/>
+<node CREATED="1538940686978" ID="ID_1747675588" MODIFIED="1538940689470" TEXT="abridged"/>
+<node CREATED="1538940690154" ID="ID_1132412756" MODIFIED="1538940691885" TEXT="collapsed"/>
+<node CREATED="1538940692545" ID="ID_1827979765" MODIFIED="1538940694085" TEXT="expanded"/>
+</node>
 <node CREATED="1480607059909" ID="ID_703281238" MODIFIED="1518487921083" TEXT="Control"/>
 </node>
 </node>
@@ -18486,6 +18656,9 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538938500754" ID="ID_715902958" MODIFIED="1538938508786" TEXT="Implementierung">
+<icon BUILTIN="hourglass"/>
+</node>
 </node>
 <node CREATED="1476376943985" HGAP="52" ID="ID_1422206856" MODIFIED="1518487921083" TEXT="Viewer" VSHIFT="10">
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
@@ -18585,6 +18758,13 @@
 <arrowlink COLOR="#929fdf" DESTINATION="ID_1717772756" ENDARROW="Default" ENDINCLINATION="-34;-71;" ID="Arrow_ID_1343685046" STARTARROW="None" STARTINCLINATION="-79;76;"/>
 <icon BUILTIN="yes"/>
 </node>
+<node CREATED="1538941704952" HGAP="12" ID="ID_429142366" MODIFIED="1538941723212" TEXT="konkrete Panels" VSHIFT="26">
+<icon BUILTIN="hourglass"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_712786561" MODIFIED="1538942194204" TEXT="Timeline-Panel">
+<linktarget COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" SOURCE="ID_1231562526" STARTARROW="None" STARTINCLINATION="860;206;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 <node CREATED="1477342616175" HGAP="37" ID="ID_954058801" MODIFIED="1518487921084" TEXT="Workspace" VSHIFT="33">
 <node CREATED="1477342624942" FOLDED="true" ID="ID_56920104" MODIFIED="1538871582823" TEXT="ist-Zustand">
@@ -18886,8 +19066,8 @@
 <node COLOR="#338800" CREATED="1531417429342" ID="ID_991918611" MODIFIED="1531417547125" TEXT="als Subsystem">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1531417434195" ID="ID_176564515" MODIFIED="1531419538503" TEXT="Strukturen hochfahren">
-<linktarget COLOR="#fee998" DESTINATION="ID_176564515" ENDARROW="Default" ENDINCLINATION="-1211;-7367;" ID="Arrow_ID_157207334" SOURCE="ID_1850773836" STARTARROW="None" STARTINCLINATION="-579;123;"/>
+<node CREATED="1531417434195" ID="ID_176564515" MODIFIED="1538938884955" TEXT="Strukturen hochfahren">
+<linktarget COLOR="#fee998" DESTINATION="ID_176564515" ENDARROW="Default" ENDINCLINATION="-1211;-7367;" ID="Arrow_ID_157207334" SOURCE="ID_1850773836" STARTARROW="None" STARTINCLINATION="-617;103;"/>
 <node CREATED="1531417551148" ID="ID_579526750" MODIFIED="1531417556199" TEXT="UI top-level"/>
 <node CREATED="1531417577048" ID="ID_371378063" MODIFIED="1531417583067" TEXT="Rahmen bereitstellen"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531419217662" ID="ID_745789650" MODIFIED="1531419680313" TEXT="#1147 establish UI start-up sequence">
@@ -18933,7 +19113,7 @@
 </node>
 <node CREATED="1531417463128" HGAP="24" ID="ID_1392317817" MODIFIED="1538871500891" TEXT="mit Inhalt beladen" VSHIFT="37">
 <linktarget COLOR="#665692" DESTINATION="ID_1392317817" ENDARROW="Default" ENDINCLINATION="-1993;202;" ID="Arrow_ID_609042013" SOURCE="ID_1997153046" STARTARROW="Default" STARTINCLINATION="1943;108;"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531417714894" FOLDED="true" ID="ID_527465217" MODIFIED="1538871518590" TEXT="Inhalts-Empfang etablieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531417714894" FOLDED="true" ID="ID_527465217" MODIFIED="1538942056588" TEXT="Inhalts-Empfang etablieren">
 <linktarget COLOR="#30327c" DESTINATION="ID_527465217" ENDARROW="Default" ENDINCLINATION="25;-45;" ID="Arrow_ID_1130203410" SOURCE="ID_350697541" STARTARROW="None" STARTINCLINATION="-75;21;"/>
 <icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423717866" ID="ID_1400324647" MODIFIED="1531423724074" TEXT="#1150 GUI content connector">
@@ -19677,7 +19857,26 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423784657" ID="ID_1434932428" MODIFIED="1531423792205" TEXT="Inhalts-Empfang wieder deaktivieren">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423892371" ID="ID_917754325" MODIFIED="1531423899603" TEXT="Dummy-Implementierung">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_501539344" MODIFIED="1538942745433" TEXT="re-populate Content">
+<linktarget COLOR="#fec680" DESTINATION="ID_501539344" ENDARROW="Default" ENDINCLINATION="-1280;-81;" ID="Arrow_ID_938812574" SOURCE="ID_977311190" STARTARROW="None" STARTINCLINATION="335;22;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1538942086509" ID="ID_1492693885" MODIFIED="1538942121013" TEXT="wenn ein UI-Element f&#xfc;r eine bestehende Entit&#xe4;t wiederaufgebaut wird">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_791449946" MODIFIED="1538939608849">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <u>Aufgabe</u>: <i><font color="#821b58" size="4">inject dummy content</font></i>
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#f9b709" DESTINATION="ID_791449946" ENDARROW="Default" ENDINCLINATION="-842;-559;" ID="Arrow_ID_1347689482" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-81;124;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403103076" ID="ID_294556843" MODIFIED="1533403127590" TEXT="hart gecodetes Diff im Command erzeugen">
 <linktarget COLOR="#e34459" DESTINATION="ID_294556843" ENDARROW="Default" ENDINCLINATION="287;0;" ID="Arrow_ID_1612526412" SOURCE="ID_488294111" STARTARROW="None" STARTINCLINATION="190;339;"/>
@@ -19765,6 +19964,45 @@
 </html></richcontent>
 </node>
 </node>
+<node CREATED="1538956606744" ID="ID_165150753" MODIFIED="1538957931290" TEXT="erwartete Modell-Struktur">
+<linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" SOURCE="ID_580392349" STARTARROW="None" STARTINCLINATION="1108;116;"/>
+<linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" SOURCE="ID_1996849782" STARTARROW="None" STARTINCLINATION="823;93;"/>
+<node CREATED="1538956633404" ID="ID_266268175" MODIFIED="1538956634704" TEXT="Root">
+<node CREATED="1538956680006" ID="ID_774059518" MODIFIED="1538956688318" TEXT="TODO Assets?"/>
+<node CREATED="1538956635652" ID="ID_410609041" MODIFIED="1538956794482" TEXT="Sequence{Timeline}"/>
+</node>
+<node CREATED="1538956703435" ID="ID_275497582" MODIFIED="1538956705502" TEXT="Timeline">
+<node CREATED="1538956945754" ID="ID_1216887436" MODIFIED="1538956953906" TEXT="&quot;name&quot;"/>
+<node CREATED="1538956717369" ID="ID_21520084" MODIFIED="1538956955642" TEXT="&quot;fork&quot; = Track"/>
+<node CREATED="1538956709026" ID="ID_326010297" MODIFIED="1538956792235" TEXT="Sequence{Marker}"/>
+</node>
+<node CREATED="1538956769298" ID="ID_1319425167" MODIFIED="1538956771477" TEXT="Track">
+<node CREATED="1538956775249" ID="ID_1811758034" MODIFIED="1538956789843" TEXT="Sequence{Track}">
+<node CREATED="1538957049292" ID="ID_1618683787" MODIFIED="1538957055215" TEXT="if typeID = &quot;Fork&quot;"/>
+</node>
+<node CREATED="1538956796214" ID="ID_337674261" MODIFIED="1538956801905" TEXT="Sequence{Clip}">
+<node CREATED="1538957049292" ID="ID_100537539" MODIFIED="1538957063726" TEXT="if typeID = &quot;Clip&quot;"/>
+</node>
+<node CREATED="1538956802701" ID="ID_840384156" MODIFIED="1538956809576" TEXT="Sequence{Marker}">
+<node CREATED="1538957049292" ID="ID_1955645432" MODIFIED="1538957077700" TEXT="if typeID = &quot;Marker&quot;"/>
+</node>
+</node>
+<node CREATED="1538956769298" ID="ID_721666986" MODIFIED="1538957197892" TEXT="Clip">
+<node CREATED="1538956775249" ID="ID_1108737612" MODIFIED="1538957210090" TEXT="Sequence{Channel}">
+<node CREATED="1538957049292" ID="ID_977385993" MODIFIED="1538957231583" TEXT="if typeID = &quot;Channel&quot;"/>
+</node>
+<node CREATED="1538956796214" ID="ID_698134552" MODIFIED="1538957216250" TEXT="Sequence{Effect}">
+<node CREATED="1538957049292" ID="ID_339553268" MODIFIED="1538957226344" TEXT="if typeID = &quot;Effect&quot;"/>
+</node>
+<node CREATED="1538956802701" ID="ID_1715846940" MODIFIED="1538956809576" TEXT="Sequence{Marker}">
+<node CREATED="1538957049292" ID="ID_98299428" MODIFIED="1538957077700" TEXT="if typeID = &quot;Marker&quot;"/>
+</node>
+</node>
+<node CREATED="1538957120867" ID="ID_99923131" MODIFIED="1538957193931" TEXT="Marker">
+<node CREATED="1538956945754" ID="ID_30162898" MODIFIED="1538956953906" TEXT="&quot;name&quot;"/>
+<node CREATED="1538956945754" ID="ID_39934842" MODIFIED="1538957154865" TEXT="&quot;kind&quot; = LOOP|MARK"/>
+</node>
+</node>
 </node>
 <node CREATED="1523019349923" ID="ID_353542665" MODIFIED="1523019373947" TEXT="UI-Koordinaten (UICoord)">
 <node CREATED="1523019476817" ID="ID_1756924881" MODIFIED="1523019520204" TEXT="abstrahierte UI-Topologie">
@@ -26935,7 +27173,7 @@
 <node CREATED="1485548878292" ID="ID_49934573" MODIFIED="1518487921090" TEXT="Broadcast"/>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1538839405827" TEXT="Core-Services" VSHIFT="2">
+<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1538939217527" TEXT="Core-Services" VSHIFT="2">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -26949,7 +27187,7 @@
     </p>
   </body>
 </html></richcontent>
-<arrowlink DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
+<arrowlink COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
 <font NAME="SansSerif" SIZE="13"/>
 <icon BUILTIN="go"/>
 <node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1518487921090" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
@@ -29537,8 +29775,14 @@
 </node>
 <node CREATED="1488672593812" ID="ID_1454459609" MODIFIED="1518487921094" TEXT="konkret"/>
 </node>
-<node CREATED="1448063874479" HGAP="43" ID="ID_739054690" MODIFIED="1518487921094" TEXT="UI-Modell" VSHIFT="1">
-<icon BUILTIN="help"/>
+<node CREATED="1448063874479" HGAP="43" ID="ID_739054690" MODIFIED="1538957545166" TEXT="UI-Binding" VSHIFT="1">
+<icon BUILTIN="yes"/>
+<node CREATED="1538957594154" ID="ID_2785316" MODIFIED="1538957602189" TEXT="erwartete Modell-Struktur">
+<node COLOR="#435e98" CREATED="1538957611472" ID="ID_580392349" MODIFIED="1538957734503" TEXT="gem&#xe4;&#xdf; UI Modell-Schema">
+<arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" STARTARROW="None" STARTINCLINATION="1108;116;"/>
+<icon BUILTIN="info"/>
+</node>
+</node>
 </node>
 <node CREATED="1434128074725" FOLDED="true" HGAP="28" ID="ID_933994138" MODIFIED="1538870799628" TEXT="Diff-System" VSHIFT="1">
 <font NAME="SansSerif" SIZE="14"/>
@@ -32269,8 +32513,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="pencil"/>
 <node COLOR="#435e98" CREATED="1512925265295" HGAP="103" ID="ID_1502143527" MODIFIED="1538869212828" VSHIFT="-66">
 <richcontent TYPE="NODE"><html>
@@ -34653,8 +34896,7 @@
       L&#246;sung scheint nun &quot;rund&quot; zu sein
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1515975596673" ID="ID_1304673048" MODIFIED="1515975599660" TEXT="f&#xfc;r Services">
 <node CREATED="1515975622405" ID="ID_962877206" MODIFIED="1515975633971" TEXT="Dependency-Injection-Manager">
@@ -37546,6 +37788,26 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1484377665971" HGAP="28" ID="ID_641757454" MODIFIED="1518487921096" TEXT="Logik" VSHIFT="5">
 <icon BUILTIN="hourglass"/>
+<node CREATED="1538939499138" ID="ID_367201519" MODIFIED="1538939505629" TEXT="open Session">
+<node CREATED="1538939507425" ID="ID_389830085" MODIFIED="1538939511341" TEXT="new Session">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_1478381189" MODIFIED="1538939638255">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <u>Aufgabe</u>: <i><font color="#821b58" size="4">produce dummy content</font></i>
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#f9b709" DESTINATION="ID_1478381189" ENDARROW="Default" ENDINCLINATION="-1009;-357;" ID="Arrow_ID_1072548081" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-87;103;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1538939511688" ID="ID_936661226" MODIFIED="1538939514612" TEXT="existing Session"/>
+</node>
 </node>
 <node CREATED="1481688517437" HGAP="24" ID="ID_241232196" MODIFIED="1518487921096" TEXT="Lifecycle" VSHIFT="8">
 <icon BUILTIN="info"/>
@@ -38272,7 +38534,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533401628689" HGAP="7" ID="ID_36032481" MODIFIED="1533401645668" TEXT="Builder" VSHIFT="9">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1533401628689" HGAP="7" ID="ID_36032481" MODIFIED="1538939453265" TEXT="Builder" VSHIFT="9">
+<font NAME="SansSerif" SIZE="16"/>
 <icon BUILTIN="hourglass"/>
 <node COLOR="#435e98" CREATED="1533401646479" ID="ID_305001887" MODIFIED="1533401662043" TEXT="das gro&#xdf;e wartende MEGA-Integrations-Thema">
 <font NAME="SansSerif" SIZE="12"/>
@@ -38667,9 +38930,9 @@
 </node>
 </node>
 <node CREATED="1495221220040" HGAP="43" ID="ID_782313223" MODIFIED="1533306068667" TEXT="Framework" VSHIFT="-20">
-<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-981;-106;" ID="Arrow_ID_1912776282" SOURCE="ID_1636078216" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
 <linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-1088;-39;" ID="Arrow_ID_234165792" SOURCE="ID_433225506" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
 <linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-652;20;" ID="Arrow_ID_315633048" SOURCE="ID_1894791438" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
+<linktarget COLOR="#677ab7" DESTINATION="ID_782313223" ENDARROW="Default" ENDINCLINATION="-981;-106;" ID="Arrow_ID_1912776282" SOURCE="ID_1636078216" STARTARROW="None" STARTINCLINATION="-2111;0;"/>
 <node CREATED="1533388030963" ID="ID_1973994334" MODIFIED="1533608414131" TEXT="main context">
 <node CREATED="1533388053839" ID="ID_970610402" MODIFIED="1533388063674" TEXT="abstrahierte &quot;main loop&quot;">
 <node CREATED="1533388065237" ID="ID_1853196275" MODIFIED="1533388071944" TEXT="es gibt einen default_main_context"/>
@@ -39761,7 +40024,7 @@
 <node CREATED="1504215729848" ID="ID_518260540" MODIFIED="1518487921101" TEXT="howto">
 <node CREATED="1446515847047" ID="ID_290915762" MODIFIED="1518487921101" TEXT="GtkCssProvider">
 <node CREATED="1446515865029" ID="ID_1503616150" MODIFIED="1518487921101" TEXT="parsing errors"/>
-<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1534336601077" TEXT="Beispiel im GTKmm-Guide (custom widget)">
+<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1538938881467" TEXT="Beispiel im GTKmm-Guide (custom widget)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39778,7 +40041,7 @@
     </p>
   </body>
 </html></richcontent>
-<linktarget COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" SOURCE="ID_1164942946" STARTARROW="None" STARTINCLINATION="-756;164;"/>
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" SOURCE="ID_1164942946" STARTARROW="None" STARTINCLINATION="-840;95;"/>
 <icon BUILTIN="info"/>
 </node>
 </node>

From 9894542bf9ecb89afcd8d434e17b6d59a0149156 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 8 Oct 2018 05:00:06 +0200
Subject: [PATCH 138/178] Introduce predefined constants for magic IDs in UI
 communication

...these magical strings are already spreading dangerously throughout the code base


PS: also fixup for c6b8811af03  (broken whitespace in test definition)
---
 src/common/guifacade.cpp                 | 15 +---
 src/common/ui-protocol.cpp               | 62 ++++++++++++++++
 src/gui/ctrl/notification-hub.hpp        |  2 +-
 src/gui/ctrl/state-recorder.hpp          | 11 +--
 src/gui/dialog/test-control.hpp          | 13 ++--
 src/gui/model/expander-revealer.hpp      |  2 +-
 src/gui/model/tangible.cpp               | 51 ++++++-------
 src/gui/model/tangible.hpp               |  6 +-
 src/gui/notification-service.cpp         |  7 +-
 src/gui/timeline/clip-presenter.cpp      |  7 +-
 src/gui/timeline/marker-widget.cpp       |  5 +-
 src/gui/timeline/timeline-controller.cpp |  5 +-
 src/gui/timeline/track-presenter.cpp     |  7 +-
 src/include/ui-protocol.hpp              | 93 ++++++++++++++++++++++++
 src/lib/diff/diff-language.hpp           |  6 +-
 src/proc/cmd/meta-cmd.cpp                |  6 +-
 tests/15library.tests                    |  4 +-
 tests/gui/abstract-tangible-test.cpp     | 18 ++---
 tests/gui/bus-term-test.cpp              | 23 +++---
 tests/gui/test/mock-elm.hpp              | 13 ++--
 20 files changed, 258 insertions(+), 98 deletions(-)
 create mode 100644 src/common/ui-protocol.cpp
 create mode 100644 src/include/ui-protocol.hpp

diff --git a/src/common/guifacade.cpp b/src/common/guifacade.cpp
index 25779272a..212c431a1 100644
--- a/src/common/guifacade.cpp
+++ b/src/common/guifacade.cpp
@@ -150,7 +150,7 @@ namespace gui {
             ERROR_LOG_AND_IGNORE (guifacade, "trigger shutdown of the GUI");
           }
         
-        bool 
+        bool
         checkRunningState ()  noexcept override
           {
             return bool(facade);
@@ -210,15 +210,6 @@ namespace gui {
   {
     return bool(facade);
   }
-
-
-
+  
+  
 } // namespace gui
-
-/*
-// Local Variables:
-// mode: C++
-// c-file-style: "gnu"
-// indent-tabs-mode: nil
-// End:
-*/
diff --git a/src/common/ui-protocol.cpp b/src/common/ui-protocol.cpp
new file mode 100644
index 000000000..4dfc4b13a
--- /dev/null
+++ b/src/common/ui-protocol.cpp
@@ -0,0 +1,62 @@
+/*
+  UiProtocol  -  magic keys used for communication with the Lumiera UI
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+
+/** @file ui-protocol.cpp
+ ** Storage for key constants and basic definitions used for interfacing with the GUI.
+ */
+
+//#include "gui/gtk-base.hpp"    /////////////////////TODO necessary?
+#include "include/ui-protocol.hpp"
+
+
+namespace gui {
+  
+  const Symbol META_kind{"kind"};
+  
+  const Symbol TYPE_Fork{"Fork"};
+  const Symbol TYPE_Clip{"Clip"};
+  const Symbol TYPE_Marker{"Marker"};
+  const Symbol TYPE_Channel{"Channel"};
+  const Symbol TYPE_Effect{"Effect"};
+  
+  const Symbol ATTR_name{"name"};
+  const Symbol ATTR_fork{"fork"};
+  
+  
+  /* ======== UI-Element protocol ======== */
+  
+  const Symbol MARK_reset{"reset"};
+  const Symbol MARK_clearErr{"clearErr"};
+  const Symbol MARK_clearMsg{"clearMsg"};
+  const Symbol MARK_expand{"expand"};
+  const Symbol MARK_reveal{"reveal"};
+  const Symbol MARK_Flash{"Flash"};
+  const Symbol MARK_Error{"Error"};
+  const Symbol MARK_Warning{"Warning"};
+  const Symbol MARK_Message{"Message"};
+  
+  /**  */
+  
+  
+  
+}// namespace gui
diff --git a/src/gui/ctrl/notification-hub.hpp b/src/gui/ctrl/notification-hub.hpp
index 225bdc6da..84b897ff1 100644
--- a/src/gui/ctrl/notification-hub.hpp
+++ b/src/gui/ctrl/notification-hub.hpp
@@ -147,7 +147,7 @@ namespace ctrl {
       virtual void
       doMark (GenNode const& stateMark)  override
         {
-          if (stateMark.idi.getSym() == "Warning")
+          if (stateMark.idi.getSym() == MARK_Warning)
             getWidget().addWarn (stateMark.data.get<string>());
           else
             // forward to default handler
diff --git a/src/gui/ctrl/state-recorder.hpp b/src/gui/ctrl/state-recorder.hpp
index edf89dd44..b3b4ee8fc 100644
--- a/src/gui/ctrl/state-recorder.hpp
+++ b/src/gui/ctrl/state-recorder.hpp
@@ -59,6 +59,7 @@
 #include "gui/ctrl/bus-term.hpp"
 #include "gui/ctrl/state-manager.hpp"
 #include "gui/ctrl/state-map-grouping-storage.hpp"
+#include "include/ui-protocol.hpp"
 
 #include <string>
 
@@ -174,14 +175,14 @@ namespace ctrl {
       void
       recordState (ID uiElm, StateMark stateMark)
         {
-          if ("reset" == stateMark.idi.getSym())
+          if (MARK_reset == stateMark.idi.getSym())
             storage_.clearState (uiElm);
           else
-          if ("clearErr" == stateMark.idi.getSym())
-            storage_.clearProperty (uiElm, "Error");
+          if (MARK_clearErr == stateMark.idi.getSym())
+            storage_.clearProperty (uiElm, string{MARK_Error});
           else
-          if ("clearMsg" == stateMark.idi.getSym())
-            storage_.clearProperty (uiElm, "Message");
+          if (MARK_clearMsg == stateMark.idi.getSym())
+            storage_.clearProperty (uiElm, string{MARK_Message});
           else
             storage_.record (uiElm, stateMark);
         }
diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 8d8b04e77..039c00ad3 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -44,6 +44,7 @@
 #include "gui/ctrl/bus-term.hpp"
 #include "gui/model/tangible.hpp"
 #include "proc/cmd.hpp"
+#include "include/ui-protocol.hpp"
 #include "include/gui-notification-facade.h"
 #include "lib/scoped-ptrvect.hpp"
 #include "lib/diff/gen-node.hpp"
@@ -225,12 +226,12 @@ namespace dialog {
               trig_4_.set_tooltip_markup (_("trigger Proc-command, which in turn\n"
                                             "sends an <b>state mark</b> message, using\n"
                                             "the message action-ID from the combobox"));
-              actionID_.append ("Flash");
-              actionID_.append ("revealYourself");
-              actionID_.append ("clearErr");
-              actionID_.append ("clearMsg");
-              actionID_.append ("expand");
-              actionID_.append ("reset");
+              actionID_.append (cuString{MARK_Flash});
+              actionID_.append (cuString{MARK_reveal});
+              actionID_.append (cuString{MARK_clearErr});
+              actionID_.append (cuString{MARK_clearMsg});
+              actionID_.append (cuString{MARK_expand});
+              actionID_.append (cuString{MARK_reset});
               actionID_.set_active(1);
               actionID_.set_tooltip_markup("select the specific action-ID\n"
                                            "when sending a <b>mark</b> message.\n"
diff --git a/src/gui/model/expander-revealer.hpp b/src/gui/model/expander-revealer.hpp
index 41c5db905..6bbe689dc 100644
--- a/src/gui/model/expander-revealer.hpp
+++ b/src/gui/model/expander-revealer.hpp
@@ -36,7 +36,7 @@
  ** 
  ** The base class of all [tangible UI elements](\ref Tangible) provides a default implementation
  ** for these generic interaction mechanisms: It offers slots to connect UI signals against, and
- ** it understands the \em `mark` messages `"expand"` and `"revealYourself"`. These are implemented
+ ** it understands the \em `mark` messages `"expand"` and `"reveal"`. These are implemented
  ** by delegating to the \ref Expander and \ref Revealer functors respectively. Moreover, this
  ** default implementation automatically detects a resulting state change and emits an appropriate
  ** \em `note` message on the UI-Bus, so to make those state changes persistent. However, in order
diff --git a/src/gui/model/tangible.cpp b/src/gui/model/tangible.cpp
index e81daf3dd..0070bc029 100644
--- a/src/gui/model/tangible.cpp
+++ b/src/gui/model/tangible.cpp
@@ -33,6 +33,7 @@
 #include "gui/model/tangible.hpp"
 #include "gui/model/widget.hpp"
 #include "gui/model/controller.hpp"
+#include "include/ui-protocol.hpp"
 #include "lib/diff/gen-node.hpp"
 
 
@@ -60,7 +61,7 @@ namespace model {
   Tangible::reset()
     {
       if (this->doReset())
-        uiBus_.note (GenNode{"reset", true});
+        uiBus_.note (GenNode{string{MARK_reset}, true});
     }
   
   
@@ -82,7 +83,7 @@ namespace model {
   Tangible::clearErr()
     {
       if (this->doClearErr())
-        uiBus_.note (GenNode{"clearErr", true});
+        uiBus_.note (GenNode{string{MARK_clearErr}, true});
     }
   
   
@@ -93,7 +94,7 @@ namespace model {
   Tangible::clearMsg()
     {
       if (this->doClearMsg())
-        uiBus_.note (GenNode{"clearMsg", true});
+        uiBus_.note (GenNode{string{MARK_clearMsg}, true});
     }
   
   
@@ -125,7 +126,7 @@ namespace model {
   Tangible::markMsg (string message)
     {
       if (this->doMsg (message))
-        uiBus_.note (GenNode{"Message", message});
+        uiBus_.note (GenNode{string{MARK_Message}, message});
     }
   
   
@@ -136,7 +137,7 @@ namespace model {
   Tangible::markErr (string error)
     {
       if (this->doErr (error))
-        uiBus_.note (GenNode("Error", error));
+        uiBus_.note (GenNode{string{MARK_Error}, error});
     }
   
   
@@ -156,7 +157,7 @@ namespace model {
   Tangible::slotExpand()
   {
     if (this->doExpand(true))
-      uiBus_.note (GenNode("expand", true));
+      uiBus_.note (GenNode{string{MARK_expand}, true});
   }
   
   
@@ -168,7 +169,7 @@ namespace model {
   Tangible::slotCollapse()
   {
     if (this->doExpand(false))
-      uiBus_.note (GenNode("expand", false));
+      uiBus_.note (GenNode{string{MARK_expand}, false});
   }
   
   
@@ -192,9 +193,9 @@ namespace model {
    * Cause the element to be brought into sight.
    * This is a generic Slot to connect UI signals against;
    * the same action can also be triggered by sending a **mark**
-   * message over the UI-Bus with the symbol "`revealYourself`".
+   * message over the UI-Bus with the symbol "`reveal`".
    * @note this is an optional feature and requires the actual widget or controller
-   *       either to override the ::doRevealYourself() extension point, or to
+   *       either to override the ::doReveal() extension point, or to
    *       [install a suitable closure](\ref installRevealer()). Typically this
    *       is not in itself a persistent state change; however, it might incur
    *       expanding some widgets, which is recorded as persistent UI state.
@@ -207,7 +208,7 @@ namespace model {
   void
   Tangible::slotReveal()
   {
-    this->doRevealYourself();
+    this->doReveal();
   }
   
   
@@ -217,7 +218,7 @@ namespace model {
    * explicitly to enable this functionality.
    */
   void
-  Tangible::doRevealYourself()
+  Tangible::doReveal()
   {
     if (reveal_.canReveal())
       reveal_();
@@ -245,13 +246,13 @@ namespace model {
   void
   Tangible::mark (GenNode const& stateMark)
   {
-    if (stateMark.idi.getSym() == "Flash")
+    if (stateMark.idi.getSym() == MARK_Flash)
       this->doFlash();
     else
-    if (stateMark.idi.getSym() == "Error")
+    if (stateMark.idi.getSym() == MARK_Error)
       this->markErr (stateMark.data.get<string>());
     else
-    if (stateMark.idi.getSym() == "Message")
+    if (stateMark.idi.getSym() == MARK_Message)
       this->markMsg (stateMark.data.get<string>());
     else
       this->doMark(stateMark);
@@ -267,10 +268,10 @@ namespace model {
    *   It is up to the concrete element to give this a tangible meaning, e.g. a track
    *   might switch to detail view and a clip might reveal attached effects.
    * - *reset* restores the element to the hard wired default, by invoking `doReset()`
-   * - *revealYourself* prompts the element to take the necessary actions to bring
-   *   itself into view. There is no requirement for an element to even implement
-   *   this call, but those which do typically know some kind of _"parent object"_
-   *   to forward this request, by invoking `doReveal(myID)` on this parent.
+   * - *reveal* prompts the element to take the necessary actions to bring itself
+   *   into view. There is no requirement for an element to even implement this call,
+   *   but those which do typically know some kind of _"parent object"_ to forward
+   *   this request, by invoking `doReveal(myID)` on this parent.
    *   For instance, a clip might ask the enclosing track, which in turn might
    *   call the enclosing timeline display for help, resulting in a scroll action
    *   to bring the clip into sight.
@@ -280,23 +281,23 @@ namespace model {
   void
   Tangible::doMark (GenNode const& stateMark)
   {
-    if (stateMark.idi.getSym() == "expand")
+    if (stateMark.idi.getSym() == MARK_expand)
       {
         if (this->doExpand (stateMark.data.get<bool>()))
-          uiBus_.note (GenNode("expand", true));    // possibly reentrant (yet harmless)
+          uiBus_.note (GenNode(string{MARK_expand}, true));    // possibly reentrant (yet harmless)
       }
     else
-    if (stateMark.idi.getSym() == "reset")
+    if (stateMark.idi.getSym() == MARK_reset)
       this->reset();
     else
-    if (stateMark.idi.getSym() == "clearMsg")
+    if (stateMark.idi.getSym() == MARK_clearMsg)
       this->clearMsg();
     else
-    if (stateMark.idi.getSym() == "clearErr")
+    if (stateMark.idi.getSym() == MARK_clearErr)
       this->clearErr();
     else
-    if (stateMark.idi.getSym() == "revealYourself")
-      this->doRevealYourself();
+    if (stateMark.idi.getSym() == MARK_reveal)
+      this->doReveal();
   }
   
   
diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index 55f8d73ae..c20601116 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -217,7 +217,7 @@ namespace model {
       virtual bool doClearMsg()        =0;
       virtual bool doClearErr()        =0;
       virtual bool doExpand (bool yes);
-      virtual void doRevealYourself();
+      virtual void doReveal ();
       
       virtual bool doMsg (string)          =0;
       virtual bool doErr (string)          =0;
@@ -287,9 +287,9 @@ namespace model {
   /**
    * Configure the (optional) functionality to bring the UI-Element into sight.
    * @param how_to_uncover_the_element a lambda or function<void()> to actually cause the necessary actions.
-   * @note unless this setup function is invoked, the "`revealYourself`" functionality remains disabled.
+   * @note unless this setup function is invoked, the "`reveal`" functionality remains disabled.
    *       Typically this setup will be done by an owning parent container, binding to some internals
-   *       and also recursively invoking the "`revealYourself`" action on the container.
+   *       and also recursively invoking the "`reveal`" action on the container.
    */
   inline void
   Tangible::installRevealer (Revealer::RevealeItFun how_to_uncover_the_element)
diff --git a/src/gui/notification-service.cpp b/src/gui/notification-service.cpp
index 529a60449..41cff9361 100644
--- a/src/gui/notification-service.cpp
+++ b/src/gui/notification-service.cpp
@@ -56,6 +56,7 @@
 #include "gui/ctrl/ui-dispatcher.hpp"
 #include "gui/notification-service.hpp"
 #include "gui/interact/wizard.hpp"
+#include "include/ui-protocol.hpp"
 
 #include "lib/diff/mutation-message.hpp"
 #include "lib/diff/gen-node.hpp"
@@ -113,7 +114,7 @@ namespace gui {
         markNote (errorLogID, text);
         break;
       case NOTE_WARN:
-        mark (errorLogID, GenNode{"Warning", text});
+        mark (errorLogID, GenNode{string{MARK_Warning}, text});
         break;
       default:
         throw lumiera::error::Logic (_Fmt{"UI Notification with invalid severity %d encountered. "
@@ -124,14 +125,14 @@ namespace gui {
   void
   NotificationService::markError (ID uiElement, string const& text)
   {
-    dispatchMsg (uiElement, GenNode{"Error", text});
+    dispatchMsg (uiElement, GenNode{string{MARK_Error}, text});
   }
   
   
   void
   NotificationService::markNote (ID uiElement, string const& text)
   {
-    dispatchMsg (uiElement, GenNode{"Message", text});
+    dispatchMsg (uiElement, GenNode{string{MARK_Message}, text});
   }
   
   
diff --git a/src/gui/timeline/clip-presenter.cpp b/src/gui/timeline/clip-presenter.cpp
index 098fd7a8b..411e10c5d 100644
--- a/src/gui/timeline/clip-presenter.cpp
+++ b/src/gui/timeline/clip-presenter.cpp
@@ -31,6 +31,7 @@
 
 
 #include "gui/gtk-base.hpp"
+#include "include/ui-protocol.hpp"
 #include "gui/timeline/clip-presenter.hpp"
 #include "gui/timeline/marker-widget.hpp"
 
@@ -94,7 +95,7 @@ namespace timeline {
         .attach (collection(markers_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Marker"
-                    return "Marker" == spec.data.recordType();
+                    return TYPE_Marker == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PMarker const& elm) -> bool
                   {
@@ -113,7 +114,7 @@ namespace timeline {
         .attach (collection(effects_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Effect"
-                    return "Effect" == spec.data.recordType();
+                    return TYPE_Effect == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PEffect const& elm) -> bool
                   {
@@ -132,7 +133,7 @@ namespace timeline {
         .attach (collection(channels_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Channel"
-                    return "Channel" == spec.data.recordType();
+                    return TYPE_Channel == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PChannel const& elm) -> bool
                   {
diff --git a/src/gui/timeline/marker-widget.cpp b/src/gui/timeline/marker-widget.cpp
index 0208ea27b..530a30c02 100644
--- a/src/gui/timeline/marker-widget.cpp
+++ b/src/gui/timeline/marker-widget.cpp
@@ -31,6 +31,7 @@
 
 
 #include "gui/gtk-base.hpp"
+#include "include/ui-protocol.hpp"
 #include "gui/timeline/marker-widget.hpp"
 
 //#include "gui/ui-bus.hpp"
@@ -82,11 +83,11 @@ namespace timeline {
   {
     buffer.create (
       TreeMutator::build()
-        .change("name", [&](string val)
+        .change(ATTR_name, [&](string val)
             {
               name_ = val;
             })
-        .change("kind", [&](string val)
+        .change(META_kind, [&](string val)
             {
               if (val == "LOOP") kind_ = LOOP;
               else               kind_ = MARK;
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index 985b556e5..fa85ba73f 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -39,6 +39,7 @@
 
 
 #include "gui/gtk-base.hpp"
+#include "include/ui-protocol.hpp"
 #include "gui/timeline/timeline-controller.hpp"
 #include "gui/timeline/track-presenter.hpp"
 #include "gui/timeline/marker-widget.hpp"
@@ -155,12 +156,12 @@ namespace timeline {
                     target->buildMutator (buff);               //  - delegate to child to build nested TreeMutator
                     return true;
                   }))
-        .mutateAttrib("fork", [&](TreeMutator::Handle buff)
+        .mutateAttrib(ATTR_fork, [&](TreeMutator::Handle buff)
             {                                                  // »Attribute Mutator« : how enter an object field as nested scope
               REQUIRE (fork_);
               fork_->buildMutator(buff);
             })
-        .change("name", [&](string val)
+        .change(ATTR_name, [&](string val)
             {                                                  // »Attribute Setter« : how assign a new value to some object field
               name_ = val;
             }));
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index bce8ed079..ea541c650 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -31,6 +31,7 @@
 
 
 #include "gui/gtk-base.hpp"
+#include "include/ui-protocol.hpp"
 #include "gui/timeline/track-presenter.hpp"
 #include "gui/timeline/clip-presenter.hpp"
 #include "gui/timeline/marker-widget.hpp"
@@ -104,7 +105,7 @@ namespace timeline {
         .attach (collection(markers_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Marker"
-                    return "Marker" == spec.data.recordType();
+                    return TYPE_Marker == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PMarker const& elm) -> bool
                   {
@@ -123,7 +124,7 @@ namespace timeline {
         .attach (collection(clips_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Clip"
-                    return "Clip" == spec.data.recordType();
+                    return TYPE_Clip == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PClip const& elm) -> bool
                   {
@@ -142,7 +143,7 @@ namespace timeline {
         .attach (collection(subFork_)
                .isApplicableIf ([&](GenNode const& spec) -> bool
                   {                                            // »Selector« : require object-like sub scope with type-field "Fork"
-                    return "Fork" == spec.data.recordType();
+                    return TYPE_Fork == spec.data.recordType();
                   })
                .matchElement ([&](GenNode const& spec, PFork const& elm) -> bool
                   {
diff --git a/src/include/ui-protocol.hpp b/src/include/ui-protocol.hpp
new file mode 100644
index 000000000..999e95c27
--- /dev/null
+++ b/src/include/ui-protocol.hpp
@@ -0,0 +1,93 @@
+/*
+  UI-PROTOCOL.h  -  magic keys used for communication with the Lumiera UI
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file ui-protocol.hpp
+ ** Hard wired key constants and basic definitions for communication with the GUI.
+ ** The Lumiera UI is connected to the application core via message oriented interfaces,
+ ** running an asynchronous communication protocol.
+ ** - the [UI-Bus](\ref ui-bus.hpp) allows for some specific kinds of messages to be
+ **   sent either "upstream" (towards the CoreService) or "downstream" to individual
+ **   [UI-Elements](\ref gui::model::Tangible) known by ID.
+ ** - these ["tangible interface elements"](\ref tangible.hpp) themselves define a
+ **   basic set of actions and "state mark" messages, known as the "element protocol"
+ ** - and changes to the structure of tangible elements exposed through the UI are
+ **   conducted by pushing up [»diff messages«](\ref mutation-message.hpp) into the
+ **   UI via UI-Bus. These messages need to comply to an underlying structural
+ **   model of elements to be edited within the session and exposed for GUI
+ **   manipulation. This is referred to as "Session Model Scheme"
+ ** 
+ ** These protocols are basically _implementation defined_ conventions and not
+ ** rigorously formalised. To a large extent, they are guided by the types and
+ ** corresponding API interfaces. However, since the lumiera session allows for
+ ** quite flexible structures, these protocols are kept open for local extensions.
+ ** At various levels, magic ID-Values are used to initiate specific interactions.
+ ** This header supplies the hard wired key constants and IDs thereby employed.
+ ** 
+ ** @see common/ui-protocol.cpp (translation unit backing those constants)  
+ */
+
+
+#ifndef GUI_INTERFACE_UI_PROTOCOL_H
+#define GUI_INTERFACE_UI_PROTOCOL_H
+
+
+#include "lib/symbol.hpp"
+
+
+namespace Glib {
+//class ustring;  /////////////////////////////TODO needed?
+}
+namespace gui {
+  
+//using lib::Literal;
+  using lib::Symbol;
+//using cuString = const Glib::ustring;
+  
+  
+  extern const Symbol META_kind;
+  
+  extern const Symbol TYPE_Fork;
+  extern const Symbol TYPE_Clip;
+  extern const Symbol TYPE_Marker;
+  extern const Symbol TYPE_Channel;
+  extern const Symbol TYPE_Effect;
+  
+  extern const Symbol ATTR_name;
+  extern const Symbol ATTR_fork;
+  
+  
+  /* ======== UI-Element protocol ======== */
+  
+  extern const Symbol MARK_reset;
+  extern const Symbol MARK_clearErr;
+  extern const Symbol MARK_clearMsg;
+  extern const Symbol MARK_expand;
+  extern const Symbol MARK_reveal;
+  extern const Symbol MARK_Flash;
+  extern const Symbol MARK_Error;
+  extern const Symbol MARK_Warning;
+  extern const Symbol MARK_Message;
+  
+  
+}// namespace gui
+#endif /*GUI_INTERFACE_UI_PROTOCOL_H*/
diff --git a/src/lib/diff/diff-language.hpp b/src/lib/diff/diff-language.hpp
index f4683c2a5..c7fe57ceb 100644
--- a/src/lib/diff/diff-language.hpp
+++ b/src/lib/diff/diff-language.hpp
@@ -33,7 +33,8 @@
  ** Such an architecture allows for tight cooperation between strictly separated
  ** components, without the need of a fixed, predefined and shared data structure.
  ** 
- ** \par Basic Assumptions
+ ** # Basic Assumptions
+ ** 
  ** While the \em linearisation folds knowledge about the underlying data structure
  ** down into the actual diff, we deliberately assume that the data to be diffed is
  ** \em structured data. Moreover, we'll assume implicitly that this data is \em typed,
@@ -44,7 +45,8 @@
  ** send the actual content data this way, or to serve as redundancy to verify
  ** proper application of the changes at the diff receiver downstream.
  ** 
- ** \par Solution Pattern
+ ** # Solution Pattern
+ ** 
  ** The representation of this linearised diff language relies on a specialised form
  ** of the <b>visitor pattern</b>: We assume the vocabulary of the diff language to be
  ** relatively fixed, while the actual effect when consuming the stream of diff tokens
diff --git a/src/proc/cmd/meta-cmd.cpp b/src/proc/cmd/meta-cmd.cpp
index 5eeb7fcbd..030a5ebfa 100644
--- a/src/proc/cmd/meta-cmd.cpp
+++ b/src/proc/cmd/meta-cmd.cpp
@@ -38,6 +38,7 @@
 #include "proc/cmd.hpp"
 #include "proc/control/command-def.hpp"
 //#include "proc/mobject/session.hpp"
+#include "include/ui-protocol.hpp"             //////////////////////////////////////////////////////////////TICKET #1140 : verify if this include is required
 #include "include/gui-notification-facade.h"
 #include "gui/interact/wizard.hpp"             //////////////////////////////////////////////////////////////TICKET #1140 : include needed temporarily
 #include "lib/diff/gen-node.hpp"
@@ -54,6 +55,7 @@ using gui::NOTE_INFO;
 using gui::NOTE_WARN;
 using gui::NOTE_ERROR;
 using gui::NotifyLevel;
+using gui::MARK_expand;
 using gui::GuiNotification;
 using lib::diff::GenNode;
 //using util::cStr;
@@ -214,8 +216,8 @@ COMMAND_DEFINITION (test_meta_markAction)
                       {
                         ID errorLogID = gui::interact::Wizard::getErrorLogID();
                         GuiNotification::facade().mark (errorLogID
-                                                       ,actionID=="expand"? GenNode{actionID, isYes(message)}
-                                                                          : GenNode{actionID, message});
+                                                       ,actionID==MARK_expand? GenNode{actionID, isYes(message)}
+                                                                             : GenNode{actionID, message});
                       })
        .captureUndo ([](string actionID, string message) -> string
                       {
diff --git a/tests/15library.tests b/tests/15library.tests
index a9779dc4c..c2a94f0cb 100644
--- a/tests/15library.tests
+++ b/tests/15library.tests
@@ -705,8 +705,8 @@ TEST "util: sanitised identifier" UtilSanitizedIdentifier_test <<END
 out-lit: 'Word' --> 'Word'
 out-lit: 'a Sentence' --> 'a_Sentence'
 out-lit: 'trailing Withespace
-out-lit:            ' --> 'trailing_Withespace'
-out-lit: 'with    a      lot
+out-lit:        	' --> 'trailing_Withespace'
+out-lit: 'with    a  	 lot
 out-lit:   of Whitespace' --> 'with_a_lot_of_Whitespace'
 out-lit: 'with"much (punctuation)[]!' --> 'withmuch_(punctuation)'
 out-lit: '§&Ω%€  leading garbage' --> 'leading_garbage'
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 9382b4c9d..c9ffc776a 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -470,7 +470,7 @@ namespace test {
         }
       
       
-      /** @test configure a handler for the (optional) "revealYourself" functionality.
+      /** @test configure a handler for the (optional) "reveal yourself" functionality.
        * We install a lambda to supply the actual implementation action, which can then
        * either be triggered by a signal/slot invocation, or by sending a "state mark".
        */
@@ -494,7 +494,7 @@ namespace test {
           
           bool revealed = false;
           mock.installRevealer([&]()
-                                  {                        // NOTE: our mock "implementation" of the revealYourself functionality
+                                  {                        // NOTE: our mock "implementation" of the »reveal yourself« functionality
                                     mock.slotExpand();     //       explicitly prompts the element to expand itself,
                                     revealed = true;       //       and then via closure sets a flag we can verify.
                                   });
@@ -504,7 +504,7 @@ namespace test {
           CHECK (true == revealed);
           CHECK (mock.isExpanded());
           CHECK (mock.verifyEvent("create","target")
-                     .beforeCall("revealYourself")
+                     .beforeCall("reveal")
                      .beforeCall("expand").arg(true)
                      .beforeEvent("expanded"));
           
@@ -515,28 +515,28 @@ namespace test {
           
           // second test: the same can be achieved via UI-Bus message...
           revealed = false;
-          auto stateMark = GenNode{"revealYourself", 47};  // (payload argument irrelevant)
+          auto stateMark = GenNode{"reveal", 47};  // (payload argument irrelevant)
           auto& uiBus = gui::test::Nexus::testUI();
-          CHECK (nexusLog.ensureNot("revealYourself"));
+          CHECK (nexusLog.ensureNot("reveal"));
           
           uiBus.mark (targetID, stateMark);                // send the state mark message to reveal the element
           
           CHECK (true == revealed);
-          CHECK (mock.verifyMark("revealYourself", 47)
+          CHECK (mock.verifyMark("reveal", 47)
                      .afterEvent("expanded")
-                     .beforeCall("revealYourself")
+                     .beforeCall("reveal")
                      .beforeCall("expand").arg(true));
           
           CHECK (nexusLog.verifyCall("mark").arg(targetID, stateMark)
                          .after("handling state-mark")
-                         .before("revealYourself")
+                         .before("reveal")
                          .beforeEvent("delivered mark"));
           
           // Note the fine point: the target element /was/ already expanded
           // and thus there is no second "expanded" event, nor is there a
           // second state mark emitted into the UI-Bus...
           CHECK (mock.ensureNot("expanded")
-                     .afterCall("revealYourself")
+                     .afterCall("reveal")
                      .afterEvent("expanded"));
           CHECK (nexusLog.ensureNot("note")
                          .afterCall("mark").arg(targetID, stateMark)
diff --git a/tests/gui/bus-term-test.cpp b/tests/gui/bus-term-test.cpp
index 1b5b91e28..931f20711 100644
--- a/tests/gui/bus-term-test.cpp
+++ b/tests/gui/bus-term-test.cpp
@@ -30,6 +30,7 @@
 #include "lib/sync.hpp"
 #include "lib/sync-classlock.hpp"
 #include "backend/thread-wrapper.hpp"
+#include "include/ui-protocol.hpp"
 #include "gui/ctrl/bus-term.hpp"
 #include "gui/ctrl/state-manager.hpp"
 #include "proc/control/command.hpp"
@@ -190,8 +191,8 @@ namespace test {
           CHECK (nexusLog.verifyCall("note").on("TestNexus").arg(elmID, "GenNode-ID(\"expand\")-DataCap|«bool»|true"));
           
           // send a state mark down to the mock element
-          gui::test::Nexus::testUI().mark (elmID, GenNode("Flash", 23));
-          CHECK (nexusLog.verifyCall("mark").on("TestNexus").arg(elmID, "Flash")
+          gui::test::Nexus::testUI().mark (elmID, GenNode(string{MARK_Flash}, 23));
+          CHECK (nexusLog.verifyCall("mark").on("TestNexus").arg(elmID, MARK_Flash)
                          .beforeEvent("TestNexus", "mark to bID-zeitgeist"));
           CHECK (elmLog.verifyCall("doFlash").on("zeitgeist"));
           
@@ -202,9 +203,9 @@ namespace test {
           CHECK (nexusLog.verifyCall("routeDetach").on("TestNexus").arg(elmID)
                          .beforeEvent("TestNexus", "removed route to bID-zeitgeist"));
           
-          gui::test::Nexus::testUI().mark (elmID, GenNode("Flash", 88));
+          gui::test::Nexus::testUI().mark (elmID, GenNode({MARK_Flash}, 88));
           CHECK (nexusLog.verify("removed route to bID-zeitgeist")
-                         .beforeCall("mark").on("TestNexus").arg(elmID, "Flash")
+                         .beforeCall("mark").on("TestNexus").arg(elmID, MARK_Flash)
                          .beforeEvent("warn","discarding mark to unknown bID-zeitgeist"));
           CHECK (elmLog.ensureNot("Flash")
                        .afterEvent("destroy","zeitgeist"));
@@ -367,8 +368,8 @@ namespace test {
           CHECK (not mockB.isTouched());
           CHECK (not mockC.isTouched());
           
-          uiBus.mark (alpha, GenNode{"Message", "Centauri"});
-          uiBus.mark (bravo, GenNode{"Flash", true});
+          uiBus.mark (alpha,  GenNode{"Message", "Centauri"});
+          uiBus.mark (bravo,  GenNode{"Flash", true});
           uiBus.mark (charly, GenNode{"Message", "Delta"});
           uiBus.mark (charly, GenNode{"Error", "Echo"});
           
@@ -497,8 +498,8 @@ namespace test {
           auto& stateManager = gui::test::Nexus::getMockStateManager();
           CHECK (stateManager.currentState(alpha, "expand") == GenNode("expand", false ));
           CHECK (stateManager.currentState(bravo, "expand") == GenNode("expand", true ));
-          CHECK (stateManager.currentState(charly, "expand") == Ref::NO);
-          CHECK (stateManager.currentState(charly, "Error")  == GenNode("Error", "Echo"));  // sticky error state was recorded
+          CHECK (stateManager.currentState(charly,"expand") == Ref::NO);
+          CHECK (stateManager.currentState(charly, "Error") == GenNode("Error", "Echo"));  // sticky error state was recorded
           
           // reset error state(s)
           uiBus.markAll (GenNode{"clearErr", true});
@@ -509,9 +510,9 @@ namespace test {
           
           CHECK (stateManager.currentState(alpha, "expand") == GenNode("expand", false ));
           CHECK (stateManager.currentState(bravo, "expand") == GenNode("expand", true ));
-          CHECK (stateManager.currentState(charly, "expand") == Ref::NO);
-          CHECK (stateManager.currentState(charly, "Error")  == Ref::NO); // sticky error state was cleared,
-                                                                         //  because charly sent a clearErr state mark notification back
+          CHECK (stateManager.currentState(charly,"expand") == Ref::NO);
+          CHECK (stateManager.currentState(charly, "Error") == Ref::NO); // sticky error state was cleared,
+                                                                        //  because charly sent a clearErr state mark notification back
           
           // send global sweeping reset
           uiBus.markAll (GenNode{"reset", true});
diff --git a/tests/gui/test/mock-elm.hpp b/tests/gui/test/mock-elm.hpp
index 82baec4b2..09cf2e996 100644
--- a/tests/gui/test/mock-elm.hpp
+++ b/tests/gui/test/mock-elm.hpp
@@ -61,6 +61,7 @@
 
 
 #include "lib/error.hpp"
+#include "include/ui-protocol.hpp"
 #include "lib/test/event-log.hpp"
 #include "gui/model/tangible.hpp"
 #include "lib/diff/record.hpp"
@@ -126,7 +127,7 @@ namespace test{
       virtual bool
       doReset()  override
         {
-          log_.call(this->identify(), "reset");
+          log_.call(this->identify(), string{MARK_reset});
           if (virgin_)
             return false; // there was nothing to reset
           
@@ -134,22 +135,22 @@ namespace test{
           message_ = "";
           expanded_ = false;
           virgin_ = true;
-          log_.event("reset");
+          log_.event(string{MARK_reset});
           return true; // we did indeed reset something
         }             //  and thus a state mark should be captured
       
       virtual bool
       doExpand (bool yes)  override
         {
-          log_.call(this->identify(), "expand", yes);
+          log_.call(this->identify(), string{MARK_expand}, yes);
           return Tangible::doExpand (yes);
         }
       
       virtual void
-      doRevealYourself()  override
+      doReveal()  override
         {
-          log_.call(this->identify(), "revealYourself");
-          Tangible::doRevealYourself();  // NOTE: without specific configuration this is NOP
+          log_.call(this->identify(), string{MARK_reveal});
+          Tangible::doReveal();  // NOTE: without specific configuration this is NOP
         }
       
       virtual bool

From 2adcabbef53d7bd900df3f4244c3946bd97e0f79 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 10 Oct 2018 05:45:46 +0200
Subject: [PATCH 139/178] Timeline: draft the root attachment point where
 timelines are created by diff
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This involves a fundamental decision about how to build structures in the Lumiera UI:
They shall be solely created in response to diff messages. Which leads us to
introduce a new (and quite challenging) concept: the »DiffConstituent«
---
 src/common/ui-protocol.cpp                |   1 +
 src/gui/interact/interaction-director.cpp |  38 ++++-
 src/gui/interact/interaction-director.hpp |   5 +-
 src/gui/setting/asset-controller.hpp      |   6 +-
 src/include/ui-protocol.hpp               |   1 +
 wiki/renderengine.html                    |  23 ++-
 wiki/thinkPad.ichthyo.mm                  | 174 +++++++++++++++++++++-
 7 files changed, 232 insertions(+), 16 deletions(-)

diff --git a/src/common/ui-protocol.cpp b/src/common/ui-protocol.cpp
index 4dfc4b13a..f0041692e 100644
--- a/src/common/ui-protocol.cpp
+++ b/src/common/ui-protocol.cpp
@@ -41,6 +41,7 @@ namespace gui {
   
   const Symbol ATTR_name{"name"};
   const Symbol ATTR_fork{"fork"};
+  const Symbol ATTR_assets{"assets"};
   
   
   /* ======== UI-Element protocol ======== */
diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index 0c272b6e1..bf7cdd92a 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -42,6 +42,7 @@
 #include "gui/ctrl/ui-state.hpp"
 #include "gui/setting/asset-controller.hpp"
 #include "gui/timeline/timeline-controller.hpp"
+#include "include/ui-protocol.hpp"
 #include "proc/mobject/session/root.hpp"
 #include "proc/asset/sequence.hpp"                ///////////////////////////////////////////////////////////TICKET #1096 : avoid direct inclusion to reduce compile times
 #include "proc/mobject/session/fork.hpp"          ///////////////////////////////////////////////////////////TICKET #1096 : avoid direct inclusion to reduce compile times
@@ -61,6 +62,8 @@
 using lib::idi::EntryID;
 using lib::hash::LuidH;
 using lib::diff::TreeMutator;
+using lib::diff::collection;
+using std::make_unique;
 using util::toString;
 
 
@@ -128,8 +131,30 @@ namespace interact {
   {
     buffer.create (
       TreeMutator::build()
-    );
-    unimplemented ("create a sensible binding between root-controller and root-model element");
+        .attach (collection(timelines_)
+               .isApplicableIf ([&](GenNode const& spec) -> bool
+                  {                                            // »Selector« : require object-like sub scope
+                    return spec.data.isNested();
+                  })
+               .matchElement ([&](GenNode const& spec, PTimelineCtrl const& elm) -> bool
+                  {                                            // »Matcher« : how to know we're dealing with the right timeline object
+                    return spec.idi == ID(elm);
+                  })
+               .constructFrom ([&](GenNode const& spec) -> PTimelineCtrl
+                  {                                            // »Constructor« : what to do when the diff mentions a new entity
+                    return injectTimeline (spec);
+                  })
+               .buildChildMutator ([&](PTimelineCtrl& targetTimeline, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
+                  {                                            // »Mutator« : how to apply the diff recursively to a nested scope
+                    if (ID(targetTimeline) != subID) return false;
+                    targetTimeline->buildMutator (buff);       //  - delegate to child(Timeline) to build nested TreeMutator
+                    return true;
+                  }))
+        .mutateAttrib(ATTR_fork, [&](TreeMutator::Handle buff)
+            {                                                  // »Attribute Mutator« : how enter an object field as nested scope
+              REQUIRE (assets_);
+              assets_->buildMutator(buff);
+            }));
   }
   
   
@@ -280,6 +305,15 @@ namespace interact {
   {
     return globalCtx_.windowLoc_.findActiveWindow();
   }
+  
+  
+  /** @internal allocate a new TimelineWidget and attach it as child */
+  InteractionDirector::PTimelineCtrl
+  InteractionDirector::injectTimeline (GenNode const& spec)
+  {
+    unimplemented ("allocate a TimelineWidget in some TimelinePanel and attach it's controller as child entity");
+  }
+
 
   
   
diff --git a/src/gui/interact/interaction-director.hpp b/src/gui/interact/interaction-director.hpp
index d6d22d076..6a82f43ed 100644
--- a/src/gui/interact/interaction-director.hpp
+++ b/src/gui/interact/interaction-director.hpp
@@ -80,6 +80,7 @@ namespace workspace {
 }
 namespace interact {
   
+  using lib::diff::GenNode;
 //using std::string;
   using std::unique_ptr;
   
@@ -113,7 +114,8 @@ namespace interact {
       unique_ptr<FocusTracker>  tracker_;
       
       // == Model globals ==
-      using Timelines = std::vector<unique_ptr<timeline::TimelineController>>;
+      using PTimelineCtrl = unique_ptr<timeline::TimelineController>;
+      using Timelines = std::vector<PTimelineCtrl>;
       using Assets = unique_ptr<setting::AssetController>;
       using State = unique_ptr<ctrl::UiState>;
       
@@ -150,6 +152,7 @@ namespace interact {
       
     private:
       workspace::WorkspaceWindow& getWorkspaceWindow();
+      PTimelineCtrl injectTimeline (GenNode const&);
     };
   
   
diff --git a/src/gui/setting/asset-controller.hpp b/src/gui/setting/asset-controller.hpp
index fce280526..d4e6ad67e 100644
--- a/src/gui/setting/asset-controller.hpp
+++ b/src/gui/setting/asset-controller.hpp
@@ -77,14 +77,14 @@ namespace setting {
     : public model::Controller
     {
       ///////TODO create UI representation for the asset subsections
-      
-      /** content population and manipulation via UI-Bus */
-      void buildMutator (lib::diff::TreeMutator::Handle)  override;
     
     public:
       AssetController (ID identity, ctrl::BusTerm& nexus);
      ~AssetController();
       
+      /** content population and manipulation via UI-Bus */
+      void buildMutator (lib::diff::TreeMutator::Handle)  override;
+      
     private:
       
     };
diff --git a/src/include/ui-protocol.hpp b/src/include/ui-protocol.hpp
index 999e95c27..6aa5cdb4a 100644
--- a/src/include/ui-protocol.hpp
+++ b/src/include/ui-protocol.hpp
@@ -74,6 +74,7 @@ namespace gui {
   
   extern const Symbol ATTR_name;
   extern const Symbol ATTR_fork;
+  extern const Symbol ATTR_assets;
   
   
   /* ======== UI-Element protocol ======== */
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index a6a6f8ceb..02deabddb 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2082,6 +2082,10 @@ The Method of pushing frames to the Viewer widget is changed fundamentally durin
 
 </pre>
 </div>
+<div title="DiffConstituent" creator="Ichthyostega" modifier="Ichthyostega" created="201810100342" tags="Model Concepts design draft" changecount="1">
+<pre>//A self referential intermediary, used to collect and consolidate structural information about some element.//
+This structural information can then be emanated as ''population diff'' and is thus the foundation to build a further representation of the same structure //&quot;elsewhere&quot;.// This //further representation// could be a model entity within the session's HighLevelModel, or it could be a widget tree in the UI. And, to close the circle, this other representation resulting from that diff could in turn again be a DiffConstituent.</pre>
+</div>
 <div title="DispatcherTables" creator="Ichthyostega" modifier="Ichthyostega" created="201305212334" tags="Player Rendering design draft" changecount="1">
 <pre>The Dispatcher Tables are hosted within the [[Segmentation]] and serve as a ''strategy'' governing the play process.
 For each [[calculation stream|CalcStream]] there is a concrete implementation of the [[dispatcher|FrameDispatcher]] interface, based on a specific configuration of dispatcher tables.</pre>
@@ -3243,7 +3247,7 @@ More specifically, the integration is based on ''messaging''. To start with, the
 ----
 In a preliminary attempt to establish an integration between the GUI and the lower layers, in 1/2009 we created an PlayerDummy, which &quot;pulls&quot; dummy frames from the (not yet existing) engine and displays them within an XV viewer widget. This highlighted the problems we're about to encounter and made us think about the more radically decoupled approach we followed thereafter...</pre>
 </div>
-<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201808312301" tags="GuiIntegration design draft" changecount="24">
+<div title="GuiModel" creator="Ichthyostega" modifier="Ichthyostega" created="201410170142" modified="201810100334" tags="GuiIntegration design draft" changecount="25">
 <pre>Building a layered architecture is a challenge, since the lower layer //really// needs to be self-contained, while prepared for usage by the higher layer.
 A major fraction of all desktop applications is written in a way where operational logic is built around the invocation from UI events -- what should be a shell turns into a backbone. One possible way to escape from this common anti pattern is to introduce a mediating entity, to translate between two partially incompatible demands and concerns: Sure, the &quot;tangible stuff&quot; is what matters, but you can not build any significant piece of technology if all you want is to &quot;serve&quot; the user.
 
@@ -3258,6 +3262,11 @@ The whole Idea to have a &quot;UI model&quot; appears more questionable than eve
 * {{red{as of 8/2018}}}, matters on a large scale converge towards a structure //without a classical UI model.// Seemingly we can do without...
 * there is a working demonstration in {{{BusTerm_test}}}, which pushes mutation diffs against a mock UI-Element. The immediate response to receiving such a diff notification via the UI-Bus has now been coded; it incurs invoking a passed callback (functor), which performs within the originating context, but within the ~UI-Thread, and produces the actual diff //on-demand.// (&quot;pull principle&quot;)
 
+!!!building the model structures
+A fundamental decision within the Lumiera UI is to build every model-like structure as immediate response to receiving a diff message pushed up into the UI.
+* either this happens when some change occured, which is directly reflected into the UI by a local diff
+* or a whole subtree of elements is built up step wise in response to a ''population diff''. This is an systematic description of a complete sub-structure in current shape, and is produced as emanation from a DiffConstituent.
+
 !synchronisation guarantees
 We acknowledge that the gui model is typically used from within the GUI event dispatch thread. This is //not// the thread where any session state is mutated. Thus it is the responsibility of this proxying model within the GUI to ensure that the retrieved structure is a coherent snapshot of the session state. Especially the {{{gui::model::SessionFacade}}} ensures that there was a read barrier between the state retrieval and any preceding mutation command. Actually, this is implemented down in Proc-Layer, with the help of the ProcDispatcher.
 
@@ -3425,7 +3434,7 @@ In accordance with the Lumiera application architecture in general, the UI is no
 <pre>A specially configured LumieraPlugin, which actually contains or loads the complete code of the (GTK)GUI, and additionally is linked dynamically against the application core lib. During the [[UI startup process|GuiStart]], loading of this Plugin is triggered from {{{main()}}}. Actually this causes spawning of the GTK event thread and execution of the GTK main loop.
 </pre>
 </div>
-<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810071735" tags="GuiPattern design decision draft img" changecount="51">
+<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810100316" tags="GuiPattern design decision draft img" changecount="52">
 <pre>Within the Lumieara GUI, the [[Timeline]] structure(s) from the HighLevelModel are arranged and presented according to the following principles and conventions.
 Several timeline views may be present at the same time -- and there is not necessarily a relation between them, since »a Timeline« is the top-level concept within the [[Session]]. Obviously, there can also be several //views// based on the same »Timeline« model element, and in this latter case, these //coupled views// behave according to a linked common state. An entity »Timeline« as represented through the GUI, emerges from the combination of several model elements
 * a root level [[Binding|BindingMO]] acts as framework
@@ -3459,7 +3468,7 @@ This collapsed, expanded and possibly nested workspace structure is always exact
 !!!lifecycle and instances
 A given instance of the {{{TimelineWidget}}} is always dedicated to render the contents of //one specific timeline.// We never switch the data model while retaining the UI entities. This also means, a given instance is tied to one conversation with the core; it is created when the core tells us about this timeline with an initial population diff, and it lives until either this timeline is discarded in the core model, or the whole session is shut down.
 
-The dockable ''timeline pannel'' holds onto the existing {{{TimelineWidget}}} instances, allowing to make one of them visible for interaction. Yet those instances are managed by the InteractionDirector, who incorporates the role of representing the [[model root|ModelRootMO]]. Aside of the timeline display, there is also an ''asset pannel''; display of and interaction with those asset views is handled by dedicated widgets, backed by the {{{AssetControler}}} -- which is also a child of and managed by the InteractionDirector, since assets are modelled as global part of the [[Session]].
+The dockable ''timeline pannel'' holds onto the existing {{{TimelineWidget}}} instances, allowing to make one of them visible for interaction. Yet the timeline itself is represented by the {{{TimelineControler}}}, which lives //within this widget,// and is attached to and managed by the InteractionDirector, who incorporates the role of representing the [[model root|ModelRootMO]]. Aside of the timeline display, there is also an ''asset pannel''; display of and interaction with those asset views is handled by dedicated widgets, backed by the {{{AssetControler}}} -- which is also a child of and managed by the InteractionDirector, since assets are modelled as global part of the [[Session]].
 
 In case the UI starts with no session present in the core, an //empty timeline placeholder// will be displayed, which provides UI for creating a new session...
 
@@ -3471,7 +3480,7 @@ In the most general case, there can be per-track content and nested content at t
 &amp;rarr; important question: how to [[organise the widgets|GuiTimelineWidgetStructure]]
 </pre>
 </div>
-<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810071821" tags="GuiPattern discuss decision impl" changecount="87">
+<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810100337" tags="GuiPattern discuss decision impl" changecount="89">
 <pre>The Timeline is probably the most prominent place in the GUI where we need to come up with a custom UI design.
 Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also means to write one or several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 Gui, as implemented currently, did already take some steps along this route, yet this kind of decision should be cast and documented explicitly (be it after the fact).
 
@@ -3510,6 +3519,12 @@ Here, the &quot;component&quot; relevant for such structural changes is always t
 
 From these observations we can draw the conclusion, that we'll build a ''local structural model'', to reflect the logical relations between the parts comprising the timeline display. More precisely, these structuring components are not mere model objects, rather they are mediating entities used to guide and organise the actual view entities, which in turn are passive. They are more like a view model, while also bearing some local controller responsibilities. For this reason, we prefer to term these as ''presenters'' -- i.e. TrackPresenter and ClipPresenter. And each of these local representation components holds onto a display context, which generally links it into two different display widget stacks in the two parts of the actual timeline display. Adding a child component thus becomes a rather tricky operation, involving to link possibly two child widgets into two disjoint parent widgets, thereby forming a similar display context for the child presenter. Overall, the guiding idea is that of self similarity: on each level, we have to reproduce the same relations and collaborations as present in the parent level.
 
+!!!building the timeline representation structure
+It is a fundamental decision within the Lumiera UI that any structure as to be injected as diff by the core. We do not hold a structure or data model within some UI entity and then &quot;interpret&quot; that model into a widget structure -- rather we build the widget structure itself in response to a diff message describing the structure. Especially in the case of timelines, the receiver of those messages is the InteractionDirector, which corresponds to the model root. On being prompted to set up a timeline, it will allocate a {{{TimelineWidget}}} within a suitable timeline docking panel and then attach to the {{{TimelineController}}} embedded within the widget.
+{{red{Problem 10/2018}}} how can the InteractionDirector //manage// a timeline while the timeline widget physically resides within the panel? Can we exploit a simliar structure as we did for the error log?
+
+The diff describing and thus assembling the UI representation of a timeline is typically a ''population diff'' -- which means, it is a consolidated complete description of the whole sub-structure rooted below that timeline. Such a population diff is generated as emanation from the respective DiffConstituent.
+
 !!!interplay with diff mutation
 Applying a diff changes the structure, that is, the structure of the local model, not the structure of the display widgets. Because the latter are an entirely private concern of the UI and their structure is controlled by the model components in conjunction with the display manager. And since diff application effects the contents of the model such as to make the intended structural changes happen (indirectly), we are well advised to tie the display control and the widgets very closely to those local model elements, such as to //adjust the display automatically.//
 * when a new model element is added, it has to inject something automatically into the display
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e77f228e0..0f2363833 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -45,7 +45,7 @@
 <node CREATED="1501940632871" ID="ID_189611570" MODIFIED="1518487921039" TEXT="Dummy Proc-Command"/>
 <node CREATED="1501940639479" ID="ID_1314787910" MODIFIED="1518487921039" TEXT="komplettes Ping-Pong"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1538939700299" TEXT="#1042 DummySessionConnection">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1481320590214" ID="ID_635303062" MODIFIED="1539135672542" TEXT="#1042 DummySessionConnection">
 <arrowlink COLOR="#f9b709" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-36;-73;" ID="Arrow_ID_1867016690" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <arrowlink COLOR="#f9b709" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-37;-88;" ID="Arrow_ID_779644313" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <arrowlink COLOR="#f9b709" DESTINATION="ID_791449946" ENDARROW="Default" ENDINCLINATION="-842;-559;" ID="Arrow_ID_1347689482" STARTARROW="None" STARTINCLINATION="-81;124;"/>
@@ -5246,6 +5246,10 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1231562526" MODIFIED="1538942179606" TEXT="Timeline Panel bauen">
 <arrowlink COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" STARTARROW="None" STARTINCLINATION="860;206;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1375216048" MODIFIED="1539141015314" TEXT="verankern im InteractonDirector">
+<arrowlink COLOR="#fec680" DESTINATION="ID_810032444" ENDARROW="Default" ENDINCLINATION="-451;-531;" ID="Arrow_ID_1378803021" STARTARROW="None" STARTINCLINATION="335;22;"/>
+<icon BUILTIN="pencil"/>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941158698" ID="ID_513093052" MODIFIED="1538941168250" TEXT="vorl&#xe4;ufiger Allokator">
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -5256,7 +5260,7 @@
 <arrowlink COLOR="#fec680" DESTINATION="ID_1992201258" ENDARROW="Default" ENDINCLINATION="-784;-81;" ID="Arrow_ID_126634995" STARTARROW="None" STARTINCLINATION="651;0;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_977311190" MODIFIED="1538942745433" TEXT="Aktion re-Populate">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_977311190" MODIFIED="1539140874752" TEXT="Aktion re-Populate">
 <arrowlink COLOR="#fec680" DESTINATION="ID_501539344" ENDARROW="Default" ENDINCLINATION="-1280;-81;" ID="Arrow_ID_938812574" STARTARROW="None" STARTINCLINATION="335;22;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
@@ -16475,7 +16479,62 @@
 <node CREATED="1488566452538" ID="ID_1569803797" MODIFIED="1518487921075" TEXT="werden transient gebilet"/>
 </node>
 </node>
-<node CREATED="1486763376960" ID="ID_1618020758" MODIFIED="1518487921075" TEXT="Zugang zu den Timelines"/>
+<node CREATED="1486763376960" ID="ID_1618020758" MODIFIED="1518487921075" TEXT="Zugang zu den Timelines">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_810032444" MODIFIED="1539140992471" TEXT="Timeline injizieren">
+<linktarget COLOR="#fec680" DESTINATION="ID_810032444" ENDARROW="Default" ENDINCLINATION="-451;-531;" ID="Arrow_ID_1378803021" SOURCE="ID_1375216048" STARTARROW="None" STARTINCLINATION="335;22;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539141031692" ID="ID_224638279" MODIFIED="1539141042494" TEXT="Aufruf aus dem TreeMutator-Binding"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141043842" ID="ID_1475393315" MODIFIED="1539141098932" TEXT="brauche Allocator f&#xfc;r Timelines">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141064760" ID="ID_807914812" MODIFIED="1539141075481" TEXT="wo Service ansiedeln">
+<icon BUILTIN="help"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539141095892" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539141166595" TEXT="TimelineWidget installieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141131742" ID="ID_1557130599" MODIFIED="1539141165195" TEXT="von diesem den Controller beziehen (WLink)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539141189855" ID="ID_1121710933" MODIFIED="1539141214858" TEXT="Problem: wenn WLink inaktiv wird">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1539141846463" ID="ID_1385425726" MODIFIED="1539141861324" TEXT="Design-Problem">
+<icon BUILTIN="yes"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141862533" ID="ID_122593910" MODIFIED="1539141927201">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      how can the InteractionDirector <i>manage</i>&#160;a timeline
+    </p>
+    <p>
+      &#160;while the timeline widget physically resides within the panel?
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Can we exploit a simliar structure as we did for the error log?
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="help"/>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1486763385591" ID="ID_6651258" MODIFIED="1518487921076" TEXT="Zugang zum Asset-Management"/>
 <node CREATED="1486763391862" ID="ID_1568245541" MODIFIED="1518487921076" TEXT="Zugang zur Konfiguration"/>
 <node CREATED="1486763408780" ID="ID_520762274" MODIFIED="1518487921076" TEXT="Zugang zum persistenten Interface-State"/>
@@ -19857,12 +19916,103 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1531423784657" ID="ID_1434932428" MODIFIED="1531423792205" TEXT="Inhalts-Empfang wieder deaktivieren">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_501539344" MODIFIED="1538942745433" TEXT="re-populate Content">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_501539344" MODIFIED="1539140884766" TEXT="re-populate Content">
 <linktarget COLOR="#fec680" DESTINATION="ID_501539344" ENDARROW="Default" ENDINCLINATION="-1280;-81;" ID="Arrow_ID_938812574" SOURCE="ID_977311190" STARTARROW="None" STARTINCLINATION="335;22;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1538942086509" ID="ID_1492693885" MODIFIED="1538942121013" TEXT="wenn ein UI-Element f&#xfc;r eine bestehende Entit&#xe4;t wiederaufgebaut wird">
 <icon BUILTIN="info"/>
 </node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1539134153912" ID="ID_311986051" MODIFIED="1539134172715" TEXT="Grundsatzentscheidung: re-populate">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1539134197011" ID="ID_1798515652" MODIFIED="1539134282852" TEXT="m&#xf6;gliche Modelle">
+<icon BUILTIN="idea"/>
+<node CREATED="1539134201394" ID="ID_1071210666" MODIFIED="1539134350067" TEXT="UI-Komponente realisiert sich selbst">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        Komponente hat eine interne Struktur-Repr&#228;sentation
+      </li>
+      <li>
+        traversiert diese Struktur-Beschreibung
+      </li>
+      <li>
+        und &#252;bersetzt sie in UI-Widgets
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1539134224759" ID="ID_766070060" MODIFIED="1539134461591" TEXT="Struktur und Realisierung gemeinsam gepusht">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        jedes Teilelement wird per Push injiziert
+      </li>
+      <li>
+        es wird in dem Moment sofort und ausschlie&#223;lich als Widget realisiert
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node CREATED="1539134474262" ID="ID_1194066582" MODIFIED="1539134609868" TEXT="Begr&#xfc;ndung">
+<icon BUILTIN="yes"/>
+<node CREATED="1539134479525" ID="ID_11375493" MODIFIED="1539134499526" TEXT="Selbst-&quot;Verdoppelung&quot; vermeiden"/>
+<node CREATED="1539134556931" ID="ID_876466376" MODIFIED="1539134566101" TEXT="Widgets selber sind &quot;die Struktur&quot;"/>
+</node>
+</node>
+<node CREATED="1539134621210" ID="ID_1536657208" MODIFIED="1539134646091" TEXT="Konsequenz: &#xbb;populier-mich&#xab;">
+<icon BUILTIN="forward"/>
+<node CREATED="1539134702831" ID="ID_250983627" MODIFIED="1539134713209" TEXT="Objekt als leere H&#xfc;lle vorausgesetzt"/>
+<node CREATED="1539134713846" ID="ID_1404883972" MODIFIED="1539134732663" TEXT="schickt alle Details und Inhalte als Diff"/>
+<node CREATED="1539134733747" ID="ID_353086867" MODIFIED="1539135903394">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Basis: <b>DiffConstituent</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        ein selbstbez&#252;glicher substanzloser Strukturkern
+      </li>
+      <li>
+        DiffConstituent -&gt; emanation as diff
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#4e31e2" DESTINATION="ID_1189184036" ENDARROW="Default" ENDINCLINATION="-767;-123;" ID="Arrow_ID_156898929" STARTARROW="None" STARTINCLINATION="-1608;-84;"/>
+<node CREATED="1539138549468" ID="ID_1203696589" MODIFIED="1539138556062" TEXT="existiert &quot;irgendwo&quot;"/>
+<node CREATED="1539138556651" ID="ID_1265568834" MODIFIED="1539138562997" TEXT="per Command ansprechbar"/>
+<node CREATED="1539138563657" ID="ID_1727875453" MODIFIED="1539138578875" TEXT="antwortet mit Emanation in Diff-Form"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_791449946" MODIFIED="1538939608849">
 <richcontent TYPE="NODE"><html>
@@ -34875,7 +35025,19 @@
 </node>
 </node>
 <node CREATED="1482524498822" ID="ID_431883229" MODIFIED="1518487921096" TEXT="Datenstrom"/>
-<node CREATED="1482524516371" ID="ID_396707258" MODIFIED="1518487921096" TEXT="Event-Sourcing"/>
+<node CREATED="1482524516371" ID="ID_396707258" MODIFIED="1518487921096" TEXT="Event-Sourcing">
+<node CREATED="1539135156755" ID="ID_1302245670" MODIFIED="1539135342488" TEXT="vermittelnder Tr&#xe4;ger">
+<node CREATED="1539134733747" ID="ID_1189184036" MODIFIED="1539135710166" TEXT="DiffConstituent">
+<linktarget COLOR="#4e31e2" DESTINATION="ID_1189184036" ENDARROW="Default" ENDINCLINATION="-767;-123;" ID="Arrow_ID_156898929" SOURCE="ID_353086867" STARTARROW="None" STARTINCLINATION="-1608;-84;"/>
+<font BOLD="true" NAME="SansSerif" SIZE="12"/>
+<node CREATED="1539134841549" ID="ID_818387120" MODIFIED="1539134847147" TEXT="neues Konzept">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1539134848420" ID="ID_4911843" MODIFIED="1539134870669" TEXT="ein selbstbez&#xfc;glicher substanzloser Strukturkern"/>
+<node CREATED="1539134911707" ID="ID_847488848" MODIFIED="1539134930189" TEXT="DiffConstituent -&gt; emanation as diff"/>
+</node>
+</node>
+</node>
 <node COLOR="#435e98" CREATED="1482524530842" FOLDED="true" ID="ID_606738640" MODIFIED="1538868972458" TEXT="Dependency-Injection">
 <icon BUILTIN="wizard"/>
 <node CREATED="1515975589922" ID="ID_367021032" MODIFIED="1538868806804" TEXT="Architektur">
@@ -37790,7 +37952,7 @@
 <icon BUILTIN="hourglass"/>
 <node CREATED="1538939499138" ID="ID_367201519" MODIFIED="1538939505629" TEXT="open Session">
 <node CREATED="1538939507425" ID="ID_389830085" MODIFIED="1538939511341" TEXT="new Session">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_1478381189" MODIFIED="1538939638255">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_1478381189" MODIFIED="1539135672542">
 <richcontent TYPE="NODE"><html>
   <head>
     

From b65db50666c19839d15f03514905623be3665512 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 11 Oct 2018 14:29:55 +0200
Subject: [PATCH 140/178] Timeline: some considerations regarding timeline
 slave display (#1083)

---
 src/proc/asset/timeline.hpp          |  3 +++
 src/proc/mobject/session/binding.hpp |  1 +
 wiki/renderengine.html               | 32 +++++++++++++++++++++++--
 wiki/thinkPad.ichthyo.mm             | 36 ++++++++++++++++++++++++----
 4 files changed, 65 insertions(+), 7 deletions(-)

diff --git a/src/proc/asset/timeline.hpp b/src/proc/asset/timeline.hpp
index a9975ac2e..1877d3674 100644
--- a/src/proc/asset/timeline.hpp
+++ b/src/proc/asset/timeline.hpp
@@ -47,6 +47,9 @@
  **       was no opportunity to set this system really into motion; this is
  **       not necessarily a bad thing, since meanwhile we understand way
  **       better in which way the Session will actually be accessed...
+ ** @todo looks like we'll represent a secondary, attached slave display of the
+ **       same Timeline rather by materialising it into a TimelineClone within
+ **       the session. This topic has been postponed as of 10/2018     //////////////////////////////////////TICKET #1083
  ** @see Session
  ** @see Sequence
  ** @see StructFactory
diff --git a/src/proc/mobject/session/binding.hpp b/src/proc/mobject/session/binding.hpp
index 1d9d638dc..e7e815e6f 100644
--- a/src/proc/mobject/session/binding.hpp
+++ b/src/proc/mobject/session/binding.hpp
@@ -25,6 +25,7 @@
  ** MObject in session to represent the top-level binding of a sequence
  ** @todo stalled effort towards a session implementation from 2010
  ** @todo 2016 likely to stay, but expect some extensive rework
+ ** @todo Also consider timeline-slave, a topic postponed as of 10/2018     /////////////////////////////////TICKET #1083
  */
 
 
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 02deabddb..60b191eb7 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -3434,7 +3434,22 @@ In accordance with the Lumiera application architecture in general, the UI is no
 <pre>A specially configured LumieraPlugin, which actually contains or loads the complete code of the (GTK)GUI, and additionally is linked dynamically against the application core lib. During the [[UI startup process|GuiStart]], loading of this Plugin is triggered from {{{main()}}}. Actually this causes spawning of the GTK event thread and execution of the GTK main loop.
 </pre>
 </div>
-<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810100316" tags="GuiPattern design decision draft img" changecount="52">
+<div title="GuiTimelineSlave" creator="Ichthyostega" modifier="Ichthyostega" created="201810111210" tags="GuiPattern design decision draft" changecount="1">
+<pre>There are various reasons why we might want to offer multiple equivalent UI representations of the same Timeline...
+* the user might want to see several remote parts of the same timeline simultaneously, in focussed display
+* we allow several indeptendent top-level windows (think several desktops), so it might just happen that the same timeline is selected in several windows
+* we might want to introduce a focussed view on a nested sequence or virtual clip
+
+Now, since we build our UI on the notion of mapping session contents via a messaging system onto suitable presenters in the UI, we get a conceptual mismatch. Basically we need to cut at some point and duplicate some connections. Either we need the ability within a timeline presentation entity to serve several sets of slave widgets, or we need the ability for those presentation entities to collaborate, where one of them becomes the leader and automatically forwards all notifications to the other members of the cluster. Or, alternatively, we could think of pushing that duplication down into the session, in which case we get a TimelineClone entity, and the Builder then needs to be aware of this situation and generate duplicated responses to be sent to the UI.
+
+{{red{While reconsidering this topic in 10/2018}}}, it looks like I am leaning towards the most systematic option, which is to represent this duplication already within the session as TimelineClone. The rationale is
+* splitting this way is likely to produce the least accidental complexity -- at that point we are forced to cross-cut only a small number of other concerns. Were we to cut and duplicate within the UI, we'd be forced to carry care for slave entities into a huge number of entirely unrelated UI concerns, like layout management or media display feedback.
+* in the case of a focussed view on a nested sequence we are even forced to go that route, since doing otherwise would carry over core session responsibilities into the presentation layer. Consequently, any other solution scheme causes duplicating of functionality.
+* however -- if we implement slave timelines already within the session, we still need to make the UI counterpart basically aware of the situation. Thus the {{{TimelineControler}}} needs the ability to delegate some behaviour to another primary controller. That being said -- I still confirm the decision to postpone that topic altogether...
+
+In any case, this is an advanced topic, and nowhere near trivial. It seems reasonable to reject opening duplicate timeline presentations as a first step, and then address this topic way later, when we've gained sufficient knowledge regarding all the subtleties of timeline presentation and editing.</pre>
+</div>
+<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810111203" tags="GuiPattern design decision draft img" changecount="55">
 <pre>Within the Lumieara GUI, the [[Timeline]] structure(s) from the HighLevelModel are arranged and presented according to the following principles and conventions.
 Several timeline views may be present at the same time -- and there is not necessarily a relation between them, since »a Timeline« is the top-level concept within the [[Session]]. Obviously, there can also be several //views// based on the same »Timeline« model element, and in this latter case, these //coupled views// behave according to a linked common state. An entity »Timeline« as represented through the GUI, emerges from the combination of several model elements
 * a root level [[Binding|BindingMO]] acts as framework
@@ -3473,6 +3488,10 @@ The dockable ''timeline pannel'' holds onto the existing {{{TimelineWidget}}} in
 In case the UI starts with no session present in the core, an //empty timeline placeholder// will be displayed, which provides UI for creating a new session...
 
 
+!!!slave Timelines
+It is reasonable to expect the ability to have multiple [[slave timeline presentations|GuiTimelineSlave]] to access the same underlying timeline structure.
+Currently {{red{as of 10/2018}}} there is a preference to deal with that problem on session level -- but for now we decide to postpone this topic &amp;rarr; [[#1083|http://issues.lumiera.org/ticket/1083]]
+
 !!!nesting
 By principle, this workspace structure is //not a list of &quot;Tracks&quot;// -- it is a system of ''nested scopes''. The nesting emerges on demand.
 In the most general case, there can be per-track content and nested content at the same point in time. The GUI is able to represent this state. But, due to the semantics of Lumiera's HighLevelModel,  top-level content and nested content are siblings //within the same scope.// Thus, at a suitable point {{red{to be defined}}}, an equivalence transformation is applied to the GUI model, by prepending a new sibling track and moving top-level content there.
@@ -9030,7 +9049,7 @@ Currently (1/11), the strategy is implemented according to (1) and (4) above, le
 Implementation of this strategy is still broken: it doesn't work properly when actually the change passing over the zero point happens by propagation from lower digits. Because then -- given the way the mutators are implemented -- the //new value of the wrapping digit hasn't been stored.// It seems the only sensible solution is to change the definition of the functors, so that any value will be changed by side-effect {{red{Question 4/11 -- isn't this done and fixed by now??}}}
 </pre>
 </div>
-<div title="Timeline" modifier="Ichthyostega" created="200706250721" modified="201612030116" tags="def" changecount="4">
+<div title="Timeline" modifier="Ichthyostega" created="200706250721" modified="201810111211" tags="def SessionLogic" changecount="5">
 <pre>Timeline is the top level element within the [[Session (Project)|Session]]. It is visible within a [[timeline view in the GUI|GuiTimelineView]] and represents the effective (resulting) arrangement of media objects, to be rendered for output or viewed in a Monitor (viewer window). A timeline is comprised of:
 * a time axis in abolute time ({{red{WIP 1/10}}}: not clear if this is an entity or just a conceptual definition) 
 * a list of [[global Pipes|GlobalPipe]] representing the possible outputs (master busses)
@@ -9050,6 +9069,15 @@ Actually, Timeline is both an interface and acts as façade. Its an interface, b
 Besides building on the asset management, implementing Timeline (and Sequence) as StructAsset yields another benefit: ~StructAssets can be retrieved by query, allowing to specify more details of the configuration immediately on creation. //But on the short term, this approach causes problems:// there is no real inference engine integrated into Lumiera yet (as of 2/2010 the plan is to get an early alpha working end to end first). For now we're bound to use the {{{fake-configrules}}} and to rely on a hard wired simulation of the intended behaviour of a real query resolution. Just some special magic queries will work for now, but that's enough to get ahead.
 </pre>
 </div>
+<div title="TimelineClone" creator="Ichthyostega" modifier="Ichthyostega" created="201810111219" tags="SessionLogic draft" changecount="1">
+<pre>As [[detailed here|GuiTimelineSlave]], there are various good reasons to provide several UI views onto the same timeline. Yet taking an architectural viewpoint, we prefer representing such a slave display attachment as first-class citizen, right within the session model. Some further problems remain to be settled
+* the primary Timeline entity need to be aware of the clone's presence, since any effects of a Builder run must be propagated through the latter
+* we need a way to duplicate the diff feed, so the UI element representing the clone gets notified appropriately
+* and even when following this design approach with a //materialised duplication,// we still need some awareness and collaboration among the UI elements involved
+
+This topic is {{red{postponed as of 10/2018}}} &amp;rarr; [[#1083|http://issues.lumiera.org/ticket/1083]]
+</pre>
+</div>
 <div title="TimelineDisplayManager" creator="Ichthyostega" modifier="Ichthyostega" created="201611280235" modified="201612011740" tags="spec GuiPattern img" changecount="4">
 <pre>//guide and control the concrete display properties of the various sub components (tracks, clips) comprising a timeline display.//
 
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0f2363833..99905bb49 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -16463,7 +16463,7 @@
 <node CREATED="1486763350764" ID="ID_1309124609" MODIFIED="1518487921075" TEXT="Aufgaben">
 <icon BUILTIN="yes"/>
 <node CREATED="1486763355739" ID="ID_745725927" MODIFIED="1518487921075" TEXT="Bindung f&#xfc;r Aktionen bereitstellen"/>
-<node CREATED="1488566356774" ID="ID_969011841" MODIFIED="1518487921075" TEXT="Ankerpunkt zum Bilden der Commands">
+<node CREATED="1488566356774" ID="ID_969011841" MODIFIED="1539259004138" TEXT="Ankerpunkt zum Bilden der Commands">
 <arrowlink COLOR="#706a9a" DESTINATION="ID_1461875887" ENDARROW="Default" ENDINCLINATION="-923;-789;" ID="Arrow_ID_457540370" STARTARROW="None" STARTINCLINATION="806;300;"/>
 <node CREATED="1488566405248" ID="ID_355508260" MODIFIED="1518487921075" TEXT="auffinden der Command-IDs">
 <node CREATED="1489191528425" ID="ID_1331796226" MODIFIED="1533253376724" TEXT="Neuer Service hierf&#xfc;r in Proc">
@@ -16534,6 +16534,14 @@
 </node>
 </node>
 </node>
+<node CREATED="1539258904290" ID="ID_803293419" MODIFIED="1539258934515" TEXT="hier ein Platzhalter">
+<icon BUILTIN="yes"/>
+<node CREATED="1539258936270" ID="ID_966612516" MODIFIED="1539258941417" TEXT="was ist eine Timeline hier?"/>
+<node CREATED="1539258947005" ID="ID_1624061939" MODIFIED="1539259061347" TEXT="Thema: Slave-Timeline (vertagt)">
+<arrowlink COLOR="#bfb5ce" DESTINATION="ID_1028434909" ENDARROW="Default" ENDINCLINATION="-1311;-1012;" ID="Arrow_ID_1339464508" STARTARROW="None" STARTINCLINATION="505;-47;"/>
+<icon BUILTIN="hourglass"/>
+</node>
+</node>
 </node>
 <node CREATED="1486763385591" ID="ID_6651258" MODIFIED="1518487921076" TEXT="Zugang zum Asset-Management"/>
 <node CREATED="1486763391862" ID="ID_1568245541" MODIFIED="1518487921076" TEXT="Zugang zur Konfiguration"/>
@@ -17759,7 +17767,8 @@
 <node CREATED="1487466005952" ID="ID_465457871" MODIFIED="1518487921080" TEXT="Scheitern in-Memory unwahrscheinlich"/>
 <node CREATED="1487466021990" ID="ID_212586057" MODIFIED="1518487921080" TEXT="Controller mu&#xdf; aktiv mitwirken"/>
 </node>
-<node CREATED="1487466040524" ID="ID_646231524" MODIFIED="1518487921080" TEXT="Timeline-Slave in der Session">
+<node CREATED="1487466040524" ID="ID_646231524" MODIFIED="1539258873718" TEXT="Timeline-Slave in der Session">
+<linktarget COLOR="#5793da" DESTINATION="ID_646231524" ENDARROW="Default" ENDINCLINATION="186;21;" ID="Arrow_ID_431447729" SOURCE="ID_1227431164" STARTARROW="None" STARTINCLINATION="26;-3;"/>
 <node CREATED="1487466064520" ID="ID_1607482571" MODIFIED="1518487921080" TEXT="macht Doppelung explizit"/>
 <node CREATED="1487466078743" ID="ID_1134944510" MODIFIED="1518487921080" TEXT="Problem mit den Element-IDs"/>
 <node CREATED="1487466090917" ID="ID_1611961848" MODIFIED="1518487921080" TEXT="UI -&gt; Session ist unproblematisch"/>
@@ -17771,12 +17780,29 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1487466966478" ID="ID_479759046" MODIFIED="1518487921080" TEXT="#1083 solution for Timeline slave">
 <icon BUILTIN="bell"/>
-<node CREATED="1487466997138" ID="ID_1028434909" MODIFIED="1518487921080" TEXT="auf sp&#xe4;ter vertagt">
-<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1487466997138" ID="ID_1028434909" MODIFIED="1539259040094" TEXT="auf sp&#xe4;ter vertagt">
+<linktarget COLOR="#bfb5ce" DESTINATION="ID_1028434909" ENDARROW="Default" ENDINCLINATION="-1311;-1012;" ID="Arrow_ID_1339464508" SOURCE="ID_1624061939" STARTARROW="None" STARTINCLINATION="505;-47;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
 </node>
 <node CREATED="1487466986523" ID="ID_39632539" MODIFIED="1518487921080" TEXT="zun&#xe4;chst unterbinden">
 <icon BUILTIN="yes"/>
 </node>
+<node CREATED="1539258805201" ID="ID_1227431164" MODIFIED="1539258881356" TEXT="gegenw&#xe4;rtig Pr&#xe4;ferenz erkennbar....">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...f&#252;r die dritte L&#246;sung, die Repr&#228;sentation bereits in der Session
+    </p>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#5793da" DESTINATION="ID_646231524" ENDARROW="Default" ENDINCLINATION="186;21;" ID="Arrow_ID_431447729" STARTARROW="None" STARTINCLINATION="26;-3;"/>
+<icon BUILTIN="info"/>
+</node>
 </node>
 </node>
 </node>
@@ -27590,7 +27616,7 @@
 <node CREATED="1488672534372" FOLDED="true" HGAP="78" ID="ID_1920838120" MODIFIED="1538871116339" TEXT="core commands" VSHIFT="21">
 <icon BUILTIN="prepare"/>
 <node CREATED="1488672580926" ID="ID_1920974710" MODIFIED="1518487921091" TEXT="konzeptionell">
-<node CREATED="1488672621585" ID="ID_1461875887" MODIFIED="1518487921091" TEXT="Command-cycle">
+<node CREATED="1488672621585" ID="ID_1461875887" MODIFIED="1539259004138" TEXT="Command-cycle">
 <linktarget COLOR="#706a9a" DESTINATION="ID_1461875887" ENDARROW="Default" ENDINCLINATION="-923;-789;" ID="Arrow_ID_457540370" SOURCE="ID_969011841" STARTARROW="None" STARTINCLINATION="806;300;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1488672838499" ID="ID_1617972329" MODIFIED="1518487921091" TEXT="Interaktionen">

From 82321a75946b564f65e4334000d550a6c875d4a7 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 11 Oct 2018 17:21:47 +0200
Subject: [PATCH 141/178] Timeline: draft solution how to delegate to the
 actual TimelineWidget

Problem is, the InteractionDirector, being the representation of the model root,
needs to manage and maintain the collection of "timelines". However, these
can not be widgets, rather, they need to attach to widgets living within
the GUI widget structure proper, i.e. within the TimelinePanel

proposed solution is to build a smart handle based on WLink,
but also delegating the DiffMutable interface
---
 src/gui/interact/interaction-director.cpp |  28 ++++--
 src/gui/interact/interaction-director.hpp |   8 +-
 src/gui/model/w-link.hpp                  |   8 +-
 src/gui/timeline/timeline-gui.cpp         |  87 ++++++++++++++++++
 src/gui/timeline/timeline-gui.hpp         |  99 +++++++++++++++++++++
 src/lib/opaque-holder.hpp                 |   7 +-
 wiki/thinkPad.ichthyo.mm                  | 102 ++++++++++++++--------
 7 files changed, 287 insertions(+), 52 deletions(-)
 create mode 100644 src/gui/timeline/timeline-gui.cpp
 create mode 100644 src/gui/timeline/timeline-gui.hpp

diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index bf7cdd92a..fbe5ee31b 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -41,7 +41,8 @@
 #include "gui/workspace/workspace-window.hpp"
 #include "gui/ctrl/ui-state.hpp"
 #include "gui/setting/asset-controller.hpp"
-#include "gui/timeline/timeline-controller.hpp"
+#include "gui/timeline/timeline-widget.hpp"
+#include "gui/timeline/timeline-controller.hpp"   /////////////////TODO still required?
 #include "include/ui-protocol.hpp"
 #include "proc/mobject/session/root.hpp"
 #include "proc/asset/sequence.hpp"                ///////////////////////////////////////////////////////////TICKET #1096 : avoid direct inclusion to reduce compile times
@@ -61,6 +62,7 @@
 //using std::shared_ptr;
 using lib::idi::EntryID;
 using lib::hash::LuidH;
+using lib::diff::Rec;
 using lib::diff::TreeMutator;
 using lib::diff::collection;
 using std::make_unique;
@@ -136,18 +138,18 @@ namespace interact {
                   {                                            // »Selector« : require object-like sub scope
                     return spec.data.isNested();
                   })
-               .matchElement ([&](GenNode const& spec, PTimelineCtrl const& elm) -> bool
+               .matchElement ([&](GenNode const& spec, TimelineGui const& elm) -> bool
                   {                                            // »Matcher« : how to know we're dealing with the right timeline object
                     return spec.idi == ID(elm);
                   })
-               .constructFrom ([&](GenNode const& spec) -> PTimelineCtrl
+               .constructFrom ([&](GenNode const& spec) -> TimelineGui
                   {                                            // »Constructor« : what to do when the diff mentions a new entity
                     return injectTimeline (spec);
                   })
-               .buildChildMutator ([&](PTimelineCtrl& targetTimeline, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
+               .buildChildMutator ([&](TimelineGui& targetTimeline, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {                                            // »Mutator« : how to apply the diff recursively to a nested scope
                     if (ID(targetTimeline) != subID) return false;
-                    targetTimeline->buildMutator (buff);       //  - delegate to child(Timeline) to build nested TreeMutator
+                    targetTimeline.buildMutator (buff);        //  - delegate to child(Timeline) to build nested TreeMutator
                     return true;
                   }))
         .mutateAttrib(ATTR_fork, [&](TreeMutator::Handle buff)
@@ -307,11 +309,23 @@ namespace interact {
   }
   
   
-  /** @internal allocate a new TimelineWidget and attach it as child */
-  InteractionDirector::PTimelineCtrl
+  /** @internal allocate a new TimelineWidget and attach it as child.
+   * @todo is it really necessary to make such strong assumptions
+   *       regarding the format of the diff spec provided for
+   *       "element construction"?
+   */
+  TimelineGui
   InteractionDirector::injectTimeline (GenNode const& spec)
   {
     unimplemented ("allocate a TimelineWidget in some TimelinePanel and attach it's controller as child entity");
+    
+    REQUIRE (spec.data.isNested());
+    REQUIRE (spec.data.get<Rec>().hasAttribute(string{ATTR_fork}));
+    REQUIRE (TYPE_Fork == spec.data.get<Rec>().get(string{ATTR_fork}).data.recordType());
+    
+    TimelineGui anchorProxy{spec.idi, spec.data.get<Rec>().get(string{ATTR_fork}).idi};
+    anchorProxy.buildTimelineWidget (this->uiBus_);  ///////////////////////////////////////////TODO really create it right here?
+    return anchorProxy;
   }
 
 
diff --git a/src/gui/interact/interaction-director.hpp b/src/gui/interact/interaction-director.hpp
index 6a82f43ed..676bd05ff 100644
--- a/src/gui/interact/interaction-director.hpp
+++ b/src/gui/interact/interaction-director.hpp
@@ -54,6 +54,7 @@
 #define GUI_INTERACT_INTERACTION_DIRECTOR_H
 
 #include "gui/model/controller.hpp"
+#include "gui/timeline/timeline-gui.hpp"
 #include "lib/depend-inject.hpp"
 
 //#include <string>
@@ -92,6 +93,8 @@ namespace interact {
   class FocusTracker;
   class ViewLocator;
   
+  using timeline::TimelineGui;
+  
   
   
   /**
@@ -114,8 +117,7 @@ namespace interact {
       unique_ptr<FocusTracker>  tracker_;
       
       // == Model globals ==
-      using PTimelineCtrl = unique_ptr<timeline::TimelineController>;
-      using Timelines = std::vector<PTimelineCtrl>;
+      using Timelines = std::vector<TimelineGui>;
       using Assets = unique_ptr<setting::AssetController>;
       using State = unique_ptr<ctrl::UiState>;
       
@@ -152,7 +154,7 @@ namespace interact {
       
     private:
       workspace::WorkspaceWindow& getWorkspaceWindow();
-      PTimelineCtrl injectTimeline (GenNode const&);
+      TimelineGui injectTimeline (GenNode const&);
     };
   
   
diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index 923f0657f..b1807fda5 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -78,14 +78,15 @@ namespace model {
    * Managed link to a `sigc::trackable` UI widget, without taking ownership.
    * Automatically installs a callback to switch this link into detached state
    * when the target (widget) is destroyed.
+   * @tparam TAR the actual target widget type, which can be forward declared,
+   *         until the point where the widget is actually constructed or attached.
+   *         This target type must derive from `sigc::trackable`
    * @warning _not_ threadsafe
    * @note only EX_SANE, since attaching, detaching and swapping might throw.
    */
   template<class TAR>
   class WLink
     {
-      static_assert (std::is_base_of<sigc::trackable, TAR>()
-                    ,"target type required to be sigc::trackable");
       
       TAR* widget_;
       
@@ -208,6 +209,9 @@ namespace model {
       TAR*
       attachTo (TAR& target)
         {
+          static_assert (std::is_base_of<sigc::trackable, TAR>()
+                        ,"target type required to be sigc::trackable");
+          
           try {
               target.add_destroy_notify_callback (&widget_
                                                  ,[](void* p)
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
new file mode 100644
index 000000000..aabe1ae04
--- /dev/null
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -0,0 +1,87 @@
+/*
+  TimelineGui  -  top-level anchor point and placeholder for "the timeline"
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+
+/** @file timeline-gui.cpp
+ ** Implementation details a delegating anchor proxy for a TimelineWidget.
+ ** To reduce header include impact of global-ctx.hpp, all operations involving
+ ** actual object construction are defined within this dedicated translation unit.
+ ** 
+ ** @see TimelineWidget
+ ** @see gui::interact::InteractionDirector::buildMutator
+ ** @see gui::timeline::TimelineController::buildMutator
+ ** 
+ */
+
+
+#include "gui/gtk-base.hpp"
+#include "include/ui-protocol.hpp"
+#include "gui/timeline/timeline-gui.hpp"
+#include "gui/timeline/timeline-widget.hpp"
+
+
+using lib::diff::TreeMutator;
+using std::make_unique;
+
+
+namespace gui {
+namespace timeline {
+  
+  
+  /**
+   * Initially, TimelineGui is just an empty placeholder handle.
+   * Yet knowledge of the represented timeline's ID is required
+   */
+  TimelineGui::TimelineGui (ID identity, ID trackID)
+    : timelineID_{identity}
+    , rootTrackID_{trackID}
+    { }
+  
+  
+  /**
+   * actually build a TimelineWidget to enact the role
+   * represented by this smart-handle
+   */
+  std::unique_ptr<TimelineWidget>
+  TimelineGui::buildTimelineWidget (BusTerm& nexus)
+  {
+    auto widget = std::make_unique<TimelineWidget> (timelineID_, rootTrackID_, nexus);
+    this->connect (*widget);
+    return widget;
+  }
+  
+  
+  /**
+   * forwarding implementation of the DiffMutable interface,
+   * delegating through the referred TimelineWidget if present,
+   * yet silently ignoring any diff messages otherwise.
+   * @see tree-mutator.hpp
+   */
+  void
+  TimelineGui::buildMutator (lib::diff::TreeMutator::Handle buffer)
+  {
+    if (*this)
+      UNIMPLEMENTED ("actually delegate diff application to the target");
+  }
+  
+  
+}}// namespace gui::timeline
diff --git a/src/gui/timeline/timeline-gui.hpp b/src/gui/timeline/timeline-gui.hpp
new file mode 100644
index 000000000..fe03c30ea
--- /dev/null
+++ b/src/gui/timeline/timeline-gui.hpp
@@ -0,0 +1,99 @@
+/*
+  TIMELINE-GUI.hpp  -  top-level anchor point and placeholder for "the timeline"
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file timeline/timeline-gui.hpp
+ ** Anchor point and placeholder for the UI representation of a Timeline from the session.
+ ** TimelineGui elements are what is managed by the InteractionDirector as children reflecting
+ ** the top-level collection of Timelines within the session. However, these elements are proxies,
+ ** implemented as [smart-handle for a widget](\ref model::WLink) -- because the fact _that_ a given
+ ** timeline _is indeed presented_ needs to remain at the UI's discretion, retaining the latter's total
+ ** authority in question of interaction materiality. Moreover, the actual TimelineWidget is not at all
+ ** attached within the InteractionDirector as a managing entity, it is rather installed as a child widget
+ ** within a notebook control at some [timeline docking panel](\ref TimelinePanel). There could be several
+ ** such timeline panels in various top-level windows, and it is a question within the user's workspace
+ ** arrangement where exactly it will be placed, if at all. So TimelineGui acts as smart-handle to access
+ ** such a widget, and it stands in as a proxy to receive diff messages for this given timeline. Yet when
+ ** this timeline is not present in the UI, such diff messages and other UI-Bus messages addressed for
+ ** this entity are to be silently ignored.
+ ** 
+ ** \par how the timeline presentation structure is built
+ ** The actual UI representation of a timeline tends to be a highly complex tree of interconnected widgets.
+ ** There is no "master plan" knowledge within the UI how to build such a structure, rather this structure
+ ** evolves in response to _population diff messages_ from the core. Which in turn are either produced
+ ** initially, or in answer to a population request originating from within the UI, prompted by the
+ ** need to expose some timeline at a given place within the interface.
+ ** 
+ ** @see gui::interact::InteractionDirector::buildMutator
+ ** @see gui::timeline::TimelineWidget
+ ** 
+ */
+
+
+#ifndef GUI_TIMELINE_TIMELINE_GUI_H
+#define GUI_TIMELINE_TIMELINE_GUI_H
+
+#include "gui/ctrl/bus-term.hpp"
+#include "gui/model/w-link.hpp"
+#include "lib/diff/diff-mutable.hpp"
+
+#include <memory>
+
+
+namespace gui  {
+namespace timeline {
+  
+  class TimelineWidget;
+  using ctrl::BusTerm;
+  
+  /**
+   * smart-Handle as anchor point for "the UI representation" of a timeline.
+   * A collection of TimelineGui elements is managed as children of the InteractionDirector.
+   * The corresponding TimelineWidget may or may not be present within the UI currently.
+   */
+  class TimelineGui
+    : public model::WLink<TimelineWidget>
+    , public lib::diff::DiffMutable
+    {
+      using ID = BusTerm::ID;
+      
+      ID timelineID_;
+      ID rootTrackID_;
+      
+    public:
+      TimelineGui (ID identity, ID trackID);
+      
+      // standard copy operations aceptable
+      
+      
+      /** actually build a TimelineWidget to enact the role
+       *  represented by this smart-handle */
+      std::unique_ptr<TimelineWidget> buildTimelineWidget (BusTerm&);
+      
+      /** @internal this method is invoked by the UI-Bus when dispatching a MutationMessage... */
+      void buildMutator (lib::diff::TreeMutator::Handle buffer)  override;
+
+    };
+  
+  
+}}// namespace gui::timeline
+#endif /*GUI_TIMELINE_TIMELINE_GUI_H*/
diff --git a/src/lib/opaque-holder.hpp b/src/lib/opaque-holder.hpp
index e6badc185..4718cf38d 100644
--- a/src/lib/opaque-holder.hpp
+++ b/src/lib/opaque-holder.hpp
@@ -704,9 +704,10 @@ namespace lib {
    * handle to allow for safe _»remote implantation«_
    * of an unknown subclass into a given opaque InPlaceBuffer,
    * without having to disclose the concrete buffer type or size.
-   * @remarks this is especially geared towards use in APIs, allowing
-   *    a not yet known implementation to implant an agent or collaboration
-   *    partner into the likewise undisclosed innards of the exposed service.
+   * @remarks this copyable value object is especially geared towards use
+   *    as handle in APIs, allowing a not yet known implementation to implant
+   *    an agent or collaboration partner into the likewise undisclosed innards
+   *    of the service exposed.
    * @warning the type BA must expose a virtual dtor, since the targeted
    *    InPlaceBuffer has to take ownership of the implanted object.
    */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 99905bb49..d1b27e54d 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -16463,7 +16463,7 @@
 <node CREATED="1486763350764" ID="ID_1309124609" MODIFIED="1518487921075" TEXT="Aufgaben">
 <icon BUILTIN="yes"/>
 <node CREATED="1486763355739" ID="ID_745725927" MODIFIED="1518487921075" TEXT="Bindung f&#xfc;r Aktionen bereitstellen"/>
-<node CREATED="1488566356774" ID="ID_969011841" MODIFIED="1539259004138" TEXT="Ankerpunkt zum Bilden der Commands">
+<node CREATED="1488566356774" ID="ID_969011841" MODIFIED="1539262773405" TEXT="Ankerpunkt zum Bilden der Commands">
 <arrowlink COLOR="#706a9a" DESTINATION="ID_1461875887" ENDARROW="Default" ENDINCLINATION="-923;-789;" ID="Arrow_ID_457540370" STARTARROW="None" STARTINCLINATION="806;300;"/>
 <node CREATED="1488566405248" ID="ID_355508260" MODIFIED="1518487921075" TEXT="auffinden der Command-IDs">
 <node CREATED="1489191528425" ID="ID_1331796226" MODIFIED="1533253376724" TEXT="Neuer Service hierf&#xfc;r in Proc">
@@ -16499,48 +16499,58 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141131742" ID="ID_1557130599" MODIFIED="1539141165195" TEXT="von diesem den Controller beziehen (WLink)">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539141189855" ID="ID_1121710933" MODIFIED="1539141214858" TEXT="Problem: wenn WLink inaktiv wird">
+<node COLOR="#990000" CREATED="1539141189855" ID="ID_1121710933" MODIFIED="1539262827297" TEXT="Achtung: GUI lebt woanders...">
+<arrowlink COLOR="#732647" DESTINATION="ID_385121370" ENDARROW="Default" ENDINCLINATION="93;-27;" ID="Arrow_ID_384022851" STARTARROW="None" STARTINCLINATION="-2;36;"/>
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1539141846463" ID="ID_1385425726" MODIFIED="1539141861324" TEXT="Design-Problem">
-<icon BUILTIN="yes"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141862533" ID="ID_122593910" MODIFIED="1539141927201">
-<richcontent TYPE="NODE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      how can the InteractionDirector <i>manage</i>&#160;a timeline
-    </p>
-    <p>
-      &#160;while the timeline widget physically resides within the panel?
-    </p>
-  </body>
-</html>
-</richcontent>
-<richcontent TYPE="NOTE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      Can we exploit a simliar structure as we did for the error log?
-    </p>
-  </body>
-</html>
-</richcontent>
-<icon BUILTIN="help"/>
-</node>
 </node>
 </node>
 <node CREATED="1539258904290" ID="ID_803293419" MODIFIED="1539258934515" TEXT="hier ein Platzhalter">
 <icon BUILTIN="yes"/>
-<node CREATED="1539258936270" ID="ID_966612516" MODIFIED="1539258941417" TEXT="was ist eine Timeline hier?"/>
+<node CREATED="1539258936270" ID="ID_966612516" MODIFIED="1539258941417" TEXT="was ist eine Timeline hier?">
+<node CREATED="1539261019926" ID="ID_566230935" MODIFIED="1539261028649" TEXT="Empfangs-Gegenstelle"/>
+<node CREATED="1539261038923" ID="ID_1048882319" MODIFIED="1539261044590" TEXT="diffMutable">
+<node CREATED="1539261161651" ID="ID_833363023" MODIFIED="1539261166891" TEXT="forwarding">
+<arrowlink DESTINATION="ID_1657820556" ENDARROW="Default" ENDINCLINATION="36;0;" ID="Arrow_ID_149841651" STARTARROW="None" STARTINCLINATION="36;0;"/>
+</node>
+</node>
+<node CREATED="1539261148341" ID="ID_1657820556" MODIFIED="1539261166891" TEXT="Zugang zum UI-Widget">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1657820556" ENDARROW="Default" ENDINCLINATION="36;0;" ID="Arrow_ID_149841651" SOURCE="ID_833363023" STARTARROW="None" STARTINCLINATION="36;0;"/>
+</node>
+<node CREATED="1539261050602" ID="ID_1069671492" MODIFIED="1539261062500" TEXT="Lebenszyklus-Proxy">
+<node CREATED="1539261081830" ID="ID_1986320634" MODIFIED="1539261109534" TEXT="zerst&#xf6;rt UI-Repr&#xe4;sentation kaskadierend"/>
+<node CREATED="1539261110498" ID="ID_98327658" MODIFIED="1539261124716" TEXT="wird zum reine Platzhalter wenn UI-Widget verschwindet"/>
+</node>
+</node>
 <node CREATED="1539258947005" ID="ID_1624061939" MODIFIED="1539259061347" TEXT="Thema: Slave-Timeline (vertagt)">
 <arrowlink COLOR="#bfb5ce" DESTINATION="ID_1028434909" ENDARROW="Default" ENDINCLINATION="-1311;-1012;" ID="Arrow_ID_1339464508" STARTARROW="None" STARTINCLINATION="505;-47;"/>
 <icon BUILTIN="hourglass"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539262387431" ID="ID_385121370" MODIFIED="1539262923936" TEXT="TimelineGui">
+<linktarget COLOR="#732647" DESTINATION="ID_385121370" ENDARROW="Default" ENDINCLINATION="93;-27;" ID="Arrow_ID_384022851" SOURCE="ID_1121710933" STARTARROW="None" STARTINCLINATION="-2;36;"/>
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539262834731" ID="ID_1647910407" MODIFIED="1539270163274" TEXT="basiert auf WLink">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539262840962" ID="ID_1624846094" MODIFIED="1539270817730" TEXT="delegiert diffMutable">
+<arrowlink DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" STARTARROW="None" STARTINCLINATION="117;0;"/>
+<icon BUILTIN="pencil"/>
+</node>
+<node CREATED="1539262860719" ID="ID_113907558" MODIFIED="1539270188870" TEXT="ist ein smart-ptr&lt;TimelineWidget&gt;">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539270786646" ID="ID_1019344552" MODIFIED="1539270880066" TEXT="delegierenden Mutator implementieren">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539270801572" ID="ID_1535443502" MODIFIED="1539270808254" TEXT="f&#xfc;r InteractionDirector">
+<node CREATED="1539270491013" ID="ID_1136748343" MODIFIED="1539270871247" TEXT="Problem der korrekten Diff-Struktur">
+<arrowlink COLOR="#cbada9" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="1069;-129;" ID="Arrow_ID_46239762" STARTARROW="None" STARTINCLINATION="-474;40;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+<node CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539270817730" TEXT="f&#xfc;r TimelineGui">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" SOURCE="ID_1624846094" STARTARROW="None" STARTINCLINATION="117;0;"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1486763385591" ID="ID_6651258" MODIFIED="1518487921076" TEXT="Zugang zum Asset-Management"/>
@@ -16549,7 +16559,7 @@
 <node CREATED="1504371285442" ID="ID_634013434" MODIFIED="1518487921076" TEXT="Allokation von ComponentViews">
 <arrowlink DESTINATION="ID_948587913" ENDARROW="Default" ENDINCLINATION="87;-34;" ID="Arrow_ID_1863964331" STARTARROW="None" STARTINCLINATION="157;10;"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" FOLDED="true" HGAP="38" ID="ID_1457876217" MODIFIED="1538942417171" TEXT="konkret" VSHIFT="16">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1486768073223" FOLDED="true" HGAP="38" ID="ID_1457876217" MODIFIED="1539262563450" TEXT="konkret" VSHIFT="16">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1486768080502" ID="ID_1759740464" MODIFIED="1518487921076" TEXT="Binde-Kontext f&#xfc;r globale Aktionen"/>
 <node CREATED="1486768086869" ID="ID_173538981" MODIFIED="1518487921076" TEXT="Idee/Konzept f&#xfc;r kontextabh&#xe4;ngige Aktionen">
@@ -16661,7 +16671,7 @@
 <arrowlink COLOR="#715f85" DESTINATION="ID_329609486" ENDARROW="Default" ENDINCLINATION="-368;-2533;" ID="Arrow_ID_575977434" STARTARROW="None" STARTINCLINATION="1555;-260;"/>
 <icon BUILTIN="help"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1487313191100" FOLDED="true" ID="ID_1619021408" MODIFIED="1538871682072" TEXT="Fazit(TODO)">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1487313191100" FOLDED="true" ID="ID_1619021408" MODIFIED="1539262561932" TEXT="Fazit(TODO)">
 <icon BUILTIN="hourglass"/>
 <node CREATED="1487313203254" ID="ID_573801539" MODIFIED="1518487921076" TEXT="Klassen anlegen">
 <icon BUILTIN="button_ok"/>
@@ -20072,6 +20082,10 @@
 </node>
 </node>
 </node>
+<node CREATED="1539270491013" ID="ID_1387553695" MODIFIED="1539270707901" TEXT="Problem der korrekten Diff-Struktur">
+<arrowlink COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_971172326" STARTARROW="None" STARTINCLINATION="-1999;120;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 <node CREATED="1488423428942" ID="ID_1847992077" MODIFIED="1518487921084" TEXT="Stop"/>
@@ -27616,7 +27630,7 @@
 <node CREATED="1488672534372" FOLDED="true" HGAP="78" ID="ID_1920838120" MODIFIED="1538871116339" TEXT="core commands" VSHIFT="21">
 <icon BUILTIN="prepare"/>
 <node CREATED="1488672580926" ID="ID_1920974710" MODIFIED="1518487921091" TEXT="konzeptionell">
-<node CREATED="1488672621585" ID="ID_1461875887" MODIFIED="1539259004138" TEXT="Command-cycle">
+<node CREATED="1488672621585" ID="ID_1461875887" MODIFIED="1539262773405" TEXT="Command-cycle">
 <linktarget COLOR="#706a9a" DESTINATION="ID_1461875887" ENDARROW="Default" ENDINCLINATION="-923;-789;" ID="Arrow_ID_457540370" SOURCE="ID_969011841" STARTARROW="None" STARTINCLINATION="806;300;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1488672838499" ID="ID_1617972329" MODIFIED="1518487921091" TEXT="Interaktionen">
@@ -35062,6 +35076,10 @@
 <node CREATED="1539134848420" ID="ID_4911843" MODIFIED="1539134870669" TEXT="ein selbstbez&#xfc;glicher substanzloser Strukturkern"/>
 <node CREATED="1539134911707" ID="ID_847488848" MODIFIED="1539134930189" TEXT="DiffConstituent -&gt; emanation as diff"/>
 </node>
+<node CREATED="1539270491013" ID="ID_1435731309" MODIFIED="1539270607451" TEXT="Problem der korrekten Diff-Struktur">
+<arrowlink COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="590;-127;" ID="Arrow_ID_308349501" STARTARROW="None" STARTINCLINATION="915;0;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 <node COLOR="#435e98" CREATED="1482524530842" FOLDED="true" ID="ID_606738640" MODIFIED="1538868972458" TEXT="Dependency-Injection">
@@ -38276,6 +38294,16 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node CREATED="1539270417847" ID="ID_1555798999" MODIFIED="1539270871248" TEXT="korrekte Diff-Struktur">
+<linktarget COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="590;-127;" ID="Arrow_ID_308349501" SOURCE="ID_1435731309" STARTARROW="None" STARTINCLINATION="915;0;"/>
+<linktarget COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_971172326" SOURCE="ID_1387553695" STARTARROW="None" STARTINCLINATION="-1999;120;"/>
+<linktarget COLOR="#cbada9" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="1069;-129;" ID="Arrow_ID_46239762" SOURCE="ID_1136748343" STARTARROW="None" STARTINCLINATION="-474;40;"/>
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1539270427702" ID="ID_1895500225" MODIFIED="1539270456541" TEXT="der Diff mu&#xdf; gewisse Regeln einhalten"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539270457106" ID="ID_1865797145" MODIFIED="1539270472721" TEXT="diese sind implizit und lokal">
+<icon BUILTIN="clanbomber"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From fb93e349da4ae5a65a0a486af44e5c7a1a37b810 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 11 Oct 2018 23:56:33 +0200
Subject: [PATCH 142/178] TreeMutator: conjure up a black hole mutator

...which is a somewhat involved version of /dev/null
---
 .../diff/tree-mutator-gen-node-binding.hpp    |   2 +-
 src/lib/diff/tree-mutator-noop-binding.hpp    | 102 ++++++++++
 src/lib/diff/tree-mutator.hpp                 |   6 +-
 tests/15library.tests                         |   5 +
 .../library/diff/diff-ignore-changes-test.cpp | 187 ++++++++++++++++++
 wiki/thinkPad.ichthyo.mm                      |  60 ++++++
 6 files changed, 360 insertions(+), 2 deletions(-)
 create mode 100644 src/lib/diff/tree-mutator-noop-binding.hpp
 create mode 100644 tests/library/diff/diff-ignore-changes-test.cpp

diff --git a/src/lib/diff/tree-mutator-gen-node-binding.hpp b/src/lib/diff/tree-mutator-gen-node-binding.hpp
index 914c23aed..95f063edf 100644
--- a/src/lib/diff/tree-mutator-gen-node-binding.hpp
+++ b/src/lib/diff/tree-mutator-gen-node-binding.hpp
@@ -23,7 +23,7 @@
 
 /** @file tree-mutator-gen-node-binding.hpp
  ** Special binding implementation for TreeMutator, allowing to map
- ** tree diff operations onto an »External Tree Description«. Such is is a
+ ** tree diff operations onto an »External Tree Description«. This term denotes a
  ** DOM like representation of tree like structures, comprised of GenNode elements.
  ** TreeMutator is a customisable intermediary, which enables otherwise opaque
  ** implementation data structures to receive and respond to generic structural
diff --git a/src/lib/diff/tree-mutator-noop-binding.hpp b/src/lib/diff/tree-mutator-noop-binding.hpp
new file mode 100644
index 000000000..a07c26fa3
--- /dev/null
+++ b/src/lib/diff/tree-mutator-noop-binding.hpp
@@ -0,0 +1,102 @@
+/*
+  TREE-MUTATOR-NOOP-BINDING.hpp  -  diff::TreeMutator implementation building block
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+
+/** @file tree-mutator-noop-binding.hpp
+ ** Special binding implementation for TreeMutator, allowing to accept
+ ** and ignore any tree diff without tangible effect. TreeMutator is a
+ ** customisable intermediary, which enables otherwise opaque implementation
+ ** data structures to receive and respond to generic structural change messages
+ ** ("tree diff").
+ ** 
+ ** Each concrete TreeMutator instance will be configured differently, and this
+ ** adaptation is done by combining various building blocks. This header defines
+ ** a special `/dev/null` building block, which behaves as if successfully consuming
+ ** the given diff without actually doing anything. Obviously, such a "black hole layer"
+ ** need to be below any other diff binding, and may be used to absorb any diff verbs
+ ** not matched and consumed by a more specific binding. Contrast this to the TreeMutator
+ ** default implementation, which likewise absorbs diff verbs, but in a way to trigger
+ ** a lumiera::error::LUMIERA_ERROR_DIFF_CONFLICT. 
+ ** 
+ ** @note the header tree-mutator-attribute-binding.hpp was split off for sake of readability
+ **       and is included automatically from bottom of tree-mutator.hpp
+ ** 
+ ** @see tree-mutator-test.cpp
+ ** @see TreeMutator::build()
+ ** 
+ */
+
+
+#ifndef LIB_DIFF_TREE_MUTATOR_NOOP_BINDING_H
+#define LIB_DIFF_TREE_MUTATOR_NOOP_BINDING_H
+
+
+#include "lib/error.hpp"
+#include "lib/symbol.hpp"
+#include "lib/diff/gen-node.hpp"
+#include "lib/diff/tree-mutator.hpp"
+#include "lib/format-string.hpp"
+#include "lib/idi/entry-id.hpp"
+
+#include <utility>
+
+
+namespace lib {
+namespace diff{
+
+  namespace { // Mutator-Builder decorator components...
+    
+    
+    /**
+     * Diff binding for black holes, happily accepting anything.
+     * @note absorbs and silently ignores any diff verb.
+     */
+    template<class PAR>
+    class BlackHoleMutation
+      : public PAR
+      {
+        
+        
+      public:
+        BlackHoleMutation (PAR&& chain)
+          : PAR{std::forward<PAR>(chain)}
+          { }
+        
+        
+      };
+    
+    
+    
+    /** Entry point for DSL builder */
+    template<class PAR>
+    inline auto
+    Builder<PAR>::ignoreAllChanges()
+    {
+      return chainedBuilder<BlackHoleMutation<PAR>>();
+    }
+    
+    
+    
+  }//(END)Mutator-Builder decorator components...
+  
+}} // namespace lib::diff
+#endif /*LIB_DIFF_TREE_MUTATOR_NOOP_BINDING_H*/
diff --git a/src/lib/diff/tree-mutator.hpp b/src/lib/diff/tree-mutator.hpp
index 4a5c0df61..4e11d98c2 100644
--- a/src/lib/diff/tree-mutator.hpp
+++ b/src/lib/diff/tree-mutator.hpp
@@ -156,7 +156,7 @@ namespace diff{
       
       /** initialisation immediately before start of diff application
        * @remark allows for setup of state which is dependent on memory location,
-       *         like e.g. iterators. Due to the invokation via Builder DSL, the
+       *         like e.g. iterators. Due to the invocation via Builder DSL, the
        *         implementation object may be moved after construction, but prior
        *         to invoking this hook
        */
@@ -439,6 +439,9 @@ namespace diff{
          */
         auto attachDummy (TestMutationTarget& dummy);
         
+        
+        /** set up a catch-all and ignore-everything layer */
+        auto ignoreAllChanges();
       };
     
   }//(END) Mutator-Builder...
@@ -460,4 +463,5 @@ namespace diff{
 #include "lib/diff/tree-mutator-gen-node-binding.hpp"
 #include "lib/diff/tree-mutator-attribute-binding.hpp"
 #include "lib/diff/tree-mutator-collection-binding.hpp"
+#include "lib/diff/tree-mutator-noop-binding.hpp"
 
diff --git a/tests/15library.tests b/tests/15library.tests
index c2a94f0cb..03944a017 100644
--- a/tests/15library.tests
+++ b/tests/15library.tests
@@ -122,6 +122,11 @@ return: 0
 END
 
 
+TEST "Diff: accept and ignore arbitrary diff" DiffIgnoreChanges_test <<END
+return: 0
+END
+
+
 TEST "A Digxel (numeric component)" Digxel_test <<END
 out-lit: empty____## +0.0 ##
 out-lit: value____##-88.8 ##
diff --git a/tests/library/diff/diff-ignore-changes-test.cpp b/tests/library/diff/diff-ignore-changes-test.cpp
new file mode 100644
index 000000000..6252d715a
--- /dev/null
+++ b/tests/library/diff/diff-ignore-changes-test.cpp
@@ -0,0 +1,187 @@
+/*
+  DiffIgnoreChanges(Test)  -  apply diff to black hole
+
+  Copyright (C)         Lumiera.org
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of
+  the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+* *****************************************************/
+
+/** @file diff-ignore-changes-test.cpp
+ ** unit test \ref DiffIgnoreChanges_test.
+ ** Covers the special case of a TreeMutator configured to accept
+ ** any diff without actually doing anything.
+ */
+
+
+#include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
+#include "lib/format-util.hpp"
+#include "lib/diff/tree-diff-application.hpp"
+#include "lib/diff/test-mutation-target.hpp"
+#include "lib/format-string.hpp"
+#include "lib/format-cout.hpp"
+#include "lib/util.hpp"
+
+#include <string>
+
+using lib::iter_stl::snapshot;
+using lib::time::Time;
+using std::string;
+
+
+namespace lib {
+namespace diff{
+namespace test{
+  
+  namespace {//Test fixture....
+    
+    // define some GenNode elements
+    // to act as templates within the concrete diff
+    // NOTE: everything in this diff language is by-value
+    const GenNode ATTRIB1("α", 1),                         // attribute α = 1
+                  ATTRIB2("β", int64_t(2)),                // attribute α = 2L   (int64_t)
+                  ATTRIB3("γ", 3.45),                      // attribute γ = 3.45 (double)
+                  TYPE_X("type", "ξ"),                     // a "magic" type attribute "Xi"
+                  TYPE_Z("type", "ζ"),                     // 
+                  CHILD_A("a"),                            // unnamed string child node
+                  CHILD_B('b'),                            // unnamed char child node
+                  CHILD_T(Time(12,34,56,78)),              // unnamed time value child
+                  SUB_NODE = MakeRec().genNode(),          // empty anonymous node used to open a sub scope
+                  ATTRIB_NODE = MakeRec().genNode("δ"),    // empty named node to be attached as attribute δ
+                  GAMMA_PI("γ", 3.14159265);               // happens to have the same identity (ID) as ATTRIB3
+    
+  }//(End)Test fixture
+  
+  
+  
+  
+  
+  
+  
+  /**************************************************************************//**
+   * @test Special case: build a TreeMutator to accept any change and do nothing.
+   * 
+   * @note for sake of symmetry, this test uses the same verb sequence used in
+   *       all the other tree diff tests, assuming this sequence covers pretty
+   *       much all features supported by the tree diff language.
+   * 
+   * @see DiffComplexApplication_test test case which _indeed does a lot..._
+   * @see TreeMutator_test base operations of the adapter
+   * @see diff-tree-application.hpp
+   * @see tree-diff.hpp
+   */
+  class DiffIgnoreChanges_test
+    : public Test
+    , TreeDiffLanguage
+    {
+      using DiffSeq = iter_stl::IterSnapshot<DiffStep>;
+      
+      DiffSeq
+      populationDiff()
+        {
+          return snapshot({ins(ATTRIB1)
+                         , ins(ATTRIB3)
+                         , ins(ATTRIB3)
+                         , ins(CHILD_B)
+                         , ins(CHILD_B)
+                         , ins(CHILD_T)
+                         });
+        }                // ==> ATTRIB1, ATTRIB3, (ATTRIB3), CHILD_B, CHILD_B, CHILD_T
+      
+      DiffSeq
+      reorderingDiff()
+        {
+          return snapshot({after(Ref::ATTRIBS)
+                         , ins(ATTRIB2)
+                         , del(CHILD_B)
+                         , ins(SUB_NODE)
+                         , find(CHILD_T)
+                         , pick(CHILD_B)
+                         , skip(CHILD_T)
+                         });
+        }                // ==> ATTRIB1, ATTRIB3, (ATTRIB3), ATTRIB2, SUB_NODE, CHILD_T, CHILD_B
+        
+      DiffSeq
+      mutationDiff()
+        {
+          return snapshot({after(CHILD_B)
+                         , after(Ref::END)
+                         , set(GAMMA_PI)
+                         , mut(SUB_NODE)
+                           , ins(TYPE_X)
+                           , ins(ATTRIB2)
+                           , ins(CHILD_B)
+                           , ins(CHILD_A)
+                         , emu(SUB_NODE)
+                         , ins(ATTRIB_NODE)
+                         , mut(ATTRIB_NODE)
+                           , ins(TYPE_Z)
+                           , ins(CHILD_A)
+                           , ins(CHILD_A)
+                           , ins(CHILD_A)
+                         , emu(ATTRIB_NODE)
+                         });
+        }                // ==> ATTRIB1, ATTRIB3 := π, (ATTRIB3), ATTRIB2,
+                         //     ATTRIB_NODE{ type ζ, CHILD_A, CHILD_A, CHILD_A }
+                         //     SUB_NODE{ type ξ, ATTRIB2, CHILD_B, CHILD_A },
+                         //     CHILD_T, CHILD_B
+      
+      
+      
+      
+      virtual void
+      run (Arg)
+        {
+          struct HappyBlackHole
+            {
+              bool grumpy = true;
+              
+              void
+              buildMutator (TreeMutator::Handle buff)
+                {
+                  if (grumpy)
+                    buff.create(
+                      TreeMutator());
+                  else
+                    buff.create(
+                      TreeMutator::build()
+                        .ignoreAllChanges());
+                }
+            };
+          
+          HappyBlackHole subject;
+          DiffApplicator<HappyBlackHole> application(subject);
+          
+          VERIFY_ERROR(DIFF_CONFLICT, application.consume(populationDiff()) );
+          VERIFY_ERROR(DIFF_CONFLICT, application.consume(reorderingDiff()) );
+          VERIFY_ERROR(DIFF_CONFLICT, application.consume(mutationDiff()) );
+          
+          subject.grumpy = false;
+          
+          application.consume(populationDiff());
+          application.consume(reorderingDiff());
+          application.consume(mutationDiff());
+        }
+    };
+  
+  
+  /** Register this test class... */
+  LAUNCHER (DiffIgnoreChanges_test, "unit common");
+  
+  
+  
+}}} // namespace lib::diff::test
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d1b27e54d..8873e718f 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -16549,6 +16549,66 @@
 </node>
 <node CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539270817730" TEXT="f&#xfc;r TimelineGui">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" SOURCE="ID_1624846094" STARTARROW="None" STARTINCLINATION="117;0;"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539294575340" TEXT="Problem: diff ignorieren" VSHIFT="23">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539294576338" ID="ID_485684974" MODIFIED="1539294587881" TEXT="kann das auftreten....?">
+<icon BUILTIN="help"/>
+<node CREATED="1539294589200" ID="ID_1206613848" MODIFIED="1539294592657" TEXT="ja">
+<icon BUILTIN="ksmiletris"/>
+</node>
+<node CREATED="1539294594367" ID="ID_451112886" MODIFIED="1539294672397" TEXT="wenn InteractionDirector selber ein Diff empf&#xe4;ngt...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...welches in eine Kind-Timeline absteigt,
+    </p>
+    <p>
+      welche gegenw&#228;rtig im GUI nicht existiert
+    </p>
+    <p>
+      und daher auf &quot;inaktiv&quot; geschaltet ist.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539294693604" TEXT="TreeMutator scheitert per Default">
+<icon BUILTIN="broken-line"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539294720527" TEXT="also brauche ich einen /dev/null-Mutator">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294727470" ID="ID_1958316881" MODIFIED="1539294738485" TEXT="speziellen Binding-Layer fabrizieren">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539294807066" ID="ID_1137741867" MODIFIED="1539294809654" TEXT="wie?"/>
+<node CREATED="1539294812306" ID="ID_1564927840" MODIFIED="1539294826763" TEXT="mu&#xdf; das Standard-Mapping anschauen"/>
+<node CREATED="1539294846845" ID="ID_1839295475" MODIFIED="1539294935855" TEXT="TreeDiffMutatorBinding">
+<icon BUILTIN="info"/>
+<node CREATED="1539294859537" ID="ID_637091190" MODIFIED="1539294928138" TEXT="__expect_further_elements -&gt; immer true">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1539294892879" ID="ID_642349797" MODIFIED="1539294931009" TEXT="__expect_end_of_scope -&gt; auch immer true">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1539294909749" ID="ID_1965063755" MODIFIED="1539294918319" TEXT="Impl in tree-diff.cpp">
+<icon BUILTIN="idea"/>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539294950567" ID="ID_1321971857" MODIFIED="1539294956088" TEXT="alle F&#xe4;lle durchklappern">
+<icon BUILTIN="flag-pink"/>
+</node>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1539294743739" ID="ID_1596076772" MODIFIED="1539294758145" TEXT="Builder().ignoreAll()">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294760464" ID="ID_1376112641" MODIFIED="1539294792408" TEXT="DiffIgnoreChanges_test">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 </node>
 </node>

From 0d5f29446b52bebeccfa2937b39493d015ff3456 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 12 Oct 2018 01:07:13 +0200
Subject: [PATCH 143/178] TreeMutator: provide no-op implementation

how to further your career with eight simple steps
---
 src/lib/diff/tree-mutator-noop-binding.hpp | 30 +++++++++++++++++-----
 wiki/thinkPad.ichthyo.mm                   | 25 ++++++++++++------
 2 files changed, 40 insertions(+), 15 deletions(-)

diff --git a/src/lib/diff/tree-mutator-noop-binding.hpp b/src/lib/diff/tree-mutator-noop-binding.hpp
index a07c26fa3..c8fea45fb 100644
--- a/src/lib/diff/tree-mutator-noop-binding.hpp
+++ b/src/lib/diff/tree-mutator-noop-binding.hpp
@@ -70,18 +70,34 @@ namespace diff{
      * Diff binding for black holes, happily accepting anything.
      * @note absorbs and silently ignores any diff verb.
      */
-    template<class PAR>
     class BlackHoleMutation
-      : public PAR
+      : public TreeMutator
       {
         
-        
       public:
-        BlackHoleMutation (PAR&& chain)
-          : PAR{std::forward<PAR>(chain)}
-          { }
+        BlackHoleMutation () = default;
         
         
+        /* ==== TreeMutator API ==== */
+        
+        using Elm  = GenNode const&;
+        using Buff = TreeMutator::Handle;
+        
+        bool hasSrc()                override { return true; }  ///< always keen to do yet more
+        
+        bool injectNew (Elm)         override { return true; }  ///< pretend to inject a new element
+        bool matchSrc (Elm)          override { return true; }  ///< purport suitable element is waiting
+        bool acceptSrc (Elm)         override { return true; }  ///< claim to handle any diff task
+        bool accept_until (Elm)      override { return true; }  ///< profess to forward anywhere
+        bool findSrc (Elm)           override { return true; }  ///< sham to find anything
+        bool assignElm (Elm)         override { return true; }  ///< accept any assignment
+        
+        bool
+        mutateChild (Elm, Buff buff) override                   ///< bluff to care for children, while just reproducing ourselves
+          {
+            buff.create (BlackHoleMutation());
+            return true;
+          }
       };
     
     
@@ -91,7 +107,7 @@ namespace diff{
     inline auto
     Builder<PAR>::ignoreAllChanges()
     {
-      return chainedBuilder<BlackHoleMutation<PAR>>();
+      return Builder<BlackHoleMutation> (BlackHoleMutation{});
     }
     
     
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 8873e718f..9ca2edb50 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -16549,8 +16549,8 @@
 </node>
 <node CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539270817730" TEXT="f&#xfc;r TimelineGui">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" SOURCE="ID_1624846094" STARTARROW="None" STARTINCLINATION="117;0;"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539294575340" TEXT="Problem: diff ignorieren" VSHIFT="23">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539299038616" TEXT="Problem: diff ignorieren" VSHIFT="23">
+<icon BUILTIN="messagebox_warning"/>
 <node CREATED="1539294576338" ID="ID_485684974" MODIFIED="1539294587881" TEXT="kann das auftreten....?">
 <icon BUILTIN="help"/>
 <node CREATED="1539294589200" ID="ID_1206613848" MODIFIED="1539294592657" TEXT="ja">
@@ -16579,10 +16579,10 @@
 <node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539294693604" TEXT="TreeMutator scheitert per Default">
 <icon BUILTIN="broken-line"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539294720527" TEXT="also brauche ich einen /dev/null-Mutator">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294727470" ID="ID_1958316881" MODIFIED="1539294738485" TEXT="speziellen Binding-Layer fabrizieren">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539299026168" TEXT="also brauche ich einen /dev/null-Mutator">
+<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1539294727470" ID="ID_1958316881" MODIFIED="1539299017213" TEXT="speziellen Binding-Layer fabrizieren">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1539294807066" ID="ID_1137741867" MODIFIED="1539294809654" TEXT="wie?"/>
 <node CREATED="1539294812306" ID="ID_1564927840" MODIFIED="1539294826763" TEXT="mu&#xdf; das Standard-Mapping anschauen"/>
 <node CREATED="1539294846845" ID="ID_1839295475" MODIFIED="1539294935855" TEXT="TreeDiffMutatorBinding">
@@ -16596,8 +16596,8 @@
 <node CREATED="1539294909749" ID="ID_1965063755" MODIFIED="1539294918319" TEXT="Impl in tree-diff.cpp">
 <icon BUILTIN="idea"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539294950567" ID="ID_1321971857" MODIFIED="1539294956088" TEXT="alle F&#xe4;lle durchklappern">
-<icon BUILTIN="flag-pink"/>
+<node COLOR="#338800" CREATED="1539294950567" ID="ID_1321971857" MODIFIED="1539298935822" TEXT="alle F&#xe4;lle durchklappern">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -16606,6 +16606,15 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294760464" ID="ID_1376112641" MODIFIED="1539294792408" TEXT="DiffIgnoreChanges_test">
 <icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539298953819" ID="ID_1706428916" MODIFIED="1539298972769" TEXT="leerer TreeMutator produziert Fehler">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1539298974312" ID="ID_986781359" MODIFIED="1539298992271" TEXT="BlackHoleMutation fri&#xdf;t alles">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539298993222" ID="ID_647799125" MODIFIED="1539299007509" TEXT="Kombinieren mit speziellem Overlay">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 </node>
 </node>

From e81b0592d3e97eec96ff72ad26ad53e843594db0 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 12 Oct 2018 02:05:11 +0200
Subject: [PATCH 144/178] TreeMutator: combine no-op layer with selective other
 diff binding

...and complete unit test coverage.
This is complex stuff and we'd better be careful it actually works
---
 src/lib/diff/tree-mutator-noop-binding.hpp    | 22 +++---
 .../library/diff/diff-ignore-changes-test.cpp | 72 ++++++++++++++++++-
 wiki/thinkPad.ichthyo.mm                      | 44 +++++++++---
 3 files changed, 119 insertions(+), 19 deletions(-)

diff --git a/src/lib/diff/tree-mutator-noop-binding.hpp b/src/lib/diff/tree-mutator-noop-binding.hpp
index c8fea45fb..51762e2e7 100644
--- a/src/lib/diff/tree-mutator-noop-binding.hpp
+++ b/src/lib/diff/tree-mutator-noop-binding.hpp
@@ -51,14 +51,10 @@
 
 
 #include "lib/error.hpp"
-#include "lib/symbol.hpp"
 #include "lib/diff/gen-node.hpp"
 #include "lib/diff/tree-mutator.hpp"
-#include "lib/format-string.hpp"
-#include "lib/idi/entry-id.hpp"
-
-#include <utility>
 
+#include <type_traits>
 
 namespace lib {
 namespace diff{
@@ -85,7 +81,7 @@ namespace diff{
         
         bool hasSrc()                override { return true; }  ///< always keen to do yet more
         
-        bool injectNew (Elm)         override { return true; }  ///< pretend to inject a new element
+        bool injectNew (Elm)         override { return true; }  ///< pretend to inject something new
         bool matchSrc (Elm)          override { return true; }  ///< purport suitable element is waiting
         bool acceptSrc (Elm)         override { return true; }  ///< claim to handle any diff task
         bool accept_until (Elm)      override { return true; }  ///< profess to forward anywhere
@@ -93,7 +89,7 @@ namespace diff{
         bool assignElm (Elm)         override { return true; }  ///< accept any assignment
         
         bool
-        mutateChild (Elm, Buff buff) override                   ///< bluff to care for children, while just reproducing ourselves
+        mutateChild (Elm, Buff buff) override                   ///< ignore inferiors, yet reproduce yourself
           {
             buff.create (BlackHoleMutation());
             return true;
@@ -102,11 +98,21 @@ namespace diff{
     
     
     
-    /** Entry point for DSL builder */
+    /** Entry point for DSL builder: create a binding which consumes any diff without effect.
+     * @warning must be used as bottom most layer in a custom TreeMutator, since it would
+     *          otherwise shadow and disable any binding layer below.
+     * @note however it is possible to add a (typically selective) binding layer on top;
+     *          any diff verb _not handled_ by such a top layer will fall through and
+     *          be silently ignored. Such a setup can be used to "fish" for some specific
+     *          attributes within a diff stream.
+     */
     template<class PAR>
     inline auto
     Builder<PAR>::ignoreAllChanges()
     {
+      static_assert (std::is_same<PAR, TreeMutator>()
+                    ,"ignoreAllChanges() must be used as bottom layer.");
+      
       return Builder<BlackHoleMutation> (BlackHoleMutation{});
     }
     
diff --git a/tests/library/diff/diff-ignore-changes-test.cpp b/tests/library/diff/diff-ignore-changes-test.cpp
index 6252d715a..95c4f3a16 100644
--- a/tests/library/diff/diff-ignore-changes-test.cpp
+++ b/tests/library/diff/diff-ignore-changes-test.cpp
@@ -145,15 +145,35 @@ namespace test{
       
       virtual void
       run (Arg)
+        {
+          fail_or_ignore();
+          fish_for_content();
+        }
+      
+      
+      /** @test fail or ignore, depending on toggle.
+       * - the TreeMutator default implementation produces a failure,
+       *   when it actually has to handle some diff verb
+       * - yet a custom TreeMutator can be configured to `ignoreAllChanges()`,
+       *   in which case it will consume any diff without effect.
+       * This test also demonstrates that the actual TreeMutator is built anew
+       * for each diff application (TreeMutator is meant to be disposable).
+       * Thus we may alter the behaviour of the diff binding dynamically.
+       * @remark the actual use case for this is the TimelineGui, which
+       *         either forwards changes to a TimelineWidget, or silently
+       *         ignores them when the corresponding timeline is not opened.
+       */
+      void
+      fail_or_ignore()
         {
           struct HappyBlackHole
             {
-              bool grumpy = true;
+              bool diligent = true;
               
               void
               buildMutator (TreeMutator::Handle buff)
                 {
-                  if (grumpy)
+                  if (diligent)
                     buff.create(
                       TreeMutator());
                   else
@@ -170,12 +190,58 @@ namespace test{
           VERIFY_ERROR(DIFF_CONFLICT, application.consume(reorderingDiff()) );
           VERIFY_ERROR(DIFF_CONFLICT, application.consume(mutationDiff()) );
           
-          subject.grumpy = false;
+          subject.diligent = false;
           
           application.consume(populationDiff());
           application.consume(reorderingDiff());
           application.consume(mutationDiff());
         }
+      
+      
+      /** @test fish some content and ignore everything else.
+       * While the BlackHoleMutation binding generated by `ignoreAllChanges()`
+       * must be used as bottom layer of a custom TreeMutator, it is possible
+       * to layer a partial diff binding on top. This test demonstrates this
+       * with a single attribute binding, which just "fishes" any value
+       * mentioned in the diff for that specific attribute. Any other
+       * changes are silently ignored non the less...
+       */
+      void
+      fish_for_content()
+        {
+          struct Scrounger
+            {
+              double loot = 0.0;
+              
+              void
+              buildMutator (TreeMutator::Handle buff)
+                {
+                  buff.create(
+                    TreeMutator::build()
+                      .ignoreAllChanges()
+                      .change("γ", [&](double val) { loot = val; }));
+                }
+            };
+          
+          Scrounger subject;
+          DiffApplicator<Scrounger> application(subject);
+          
+          const auto NOTHING = 0.0;
+          const auto VAL_1   = ATTRIB3.data.get<double>();
+          const auto VAL_2   = GAMMA_PI.data.get<double>();
+          
+          CHECK (subject.loot == NOTHING);
+          
+          application.consume(populationDiff());
+          CHECK (subject.loot == VAL_1);
+          
+          application.consume(reorderingDiff());
+          CHECK (subject.loot == VAL_1);
+          
+          application.consume(mutationDiff());
+          CHECK (subject.loot == VAL_2);
+        }
+      
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 9ca2edb50..72a320157 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -16549,7 +16549,7 @@
 </node>
 <node CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539270817730" TEXT="f&#xfc;r TimelineGui">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" SOURCE="ID_1624846094" STARTARROW="None" STARTINCLINATION="117;0;"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539299038616" TEXT="Problem: diff ignorieren" VSHIFT="23">
+<node COLOR="#435e98" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539302548248" TEXT="Problem: diff ignorieren" VSHIFT="23">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1539294576338" ID="ID_485684974" MODIFIED="1539294587881" TEXT="kann das auftreten....?">
 <icon BUILTIN="help"/>
@@ -16579,12 +16579,14 @@
 <node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539294693604" TEXT="TreeMutator scheitert per Default">
 <icon BUILTIN="broken-line"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539299026168" TEXT="also brauche ich einen /dev/null-Mutator">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539302545239" TEXT="also brauche ich einen /dev/null-Mutator">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1539294727470" ID="ID_1958316881" MODIFIED="1539299017213" TEXT="speziellen Binding-Layer fabrizieren">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1539294807066" ID="ID_1137741867" MODIFIED="1539294809654" TEXT="wie?"/>
-<node CREATED="1539294812306" ID="ID_1564927840" MODIFIED="1539294826763" TEXT="mu&#xdf; das Standard-Mapping anschauen"/>
+<node CREATED="1539294812306" ID="ID_1564927840" MODIFIED="1539302566302" TEXT="mu&#xdf; das Standard-Mapping anschauen">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
 <node CREATED="1539294846845" ID="ID_1839295475" MODIFIED="1539294935855" TEXT="TreeDiffMutatorBinding">
 <icon BUILTIN="info"/>
 <node CREATED="1539294859537" ID="ID_637091190" MODIFIED="1539294928138" TEXT="__expect_further_elements -&gt; immer true">
@@ -16600,20 +16602,46 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1539302456636" ID="ID_809868228" MODIFIED="1539302478177" TEXT="Idee: mit anderen Layern kombinieren...">
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#435e98" CREATED="1539302481080" ID="ID_126724611" MODIFIED="1539302542052" TEXT="static_assertion">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...damit es nicht versehentlich &#252;ber einen anderen Layer gelegt wird,
+    </p>
+    <p>
+      welchen es dann &#252;berdecken und au&#223;er Gefecht setzen w&#252;rde.
+    </p>
+    <p>
+      
+    </p>
+    <p>
+      Habe verifiziert, da&#223; diese Assertion tats&#228;chlich greift
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1539294743739" ID="ID_1596076772" MODIFIED="1539294758145" TEXT="Builder().ignoreAll()">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539294760464" ID="ID_1376112641" MODIFIED="1539294792408" TEXT="DiffIgnoreChanges_test">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539294760464" ID="ID_1376112641" MODIFIED="1539302371782" TEXT="DiffIgnoreChanges_test">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1539298953819" ID="ID_1706428916" MODIFIED="1539298972769" TEXT="leerer TreeMutator produziert Fehler">
 <icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1539298974312" ID="ID_986781359" MODIFIED="1539298992271" TEXT="BlackHoleMutation fri&#xdf;t alles">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539298993222" ID="ID_647799125" MODIFIED="1539299007509" TEXT="Kombinieren mit speziellem Overlay">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539298993222" ID="ID_647799125" MODIFIED="1539302373522" TEXT="Kombinieren mit speziellem Overlay">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From fa6ba76f855fad16ec4e64eb786f3a6f47fe0c5f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 12 Oct 2018 23:42:56 +0200
Subject: [PATCH 145/178] investigate insidious ill-guided conversion

As it turns out, using the functional-notation form conversion
with *parentheses* will fall back on a C-style (wild, re-interpret) cast
when the target type is *not* a class. As in the case in question here, where
it is a const& to a class. To the contrary, using *curly braces* will always
attempt to go through a constructor, and thus fail as expected, when there is
no conversion path available.

I wasn't aware of that pitfall. I noticed it since the recently introduced
class TimelineGui lacked a conversion operator to BareEntryID const& and just
happily used the TimelineGui object itself and did a reinterpret_cast into BareEntryID
---
 research/try.cpp                              | 46 +++++++++++--------
 src/gui/interact/interaction-director.cpp     |  4 +-
 src/gui/timeline/clip-presenter.cpp           | 18 ++++----
 src/gui/timeline/timeline-controller.cpp      |  4 +-
 src/gui/timeline/timeline-gui.cpp             |  2 +
 src/gui/timeline/timeline-gui.hpp             |  6 ++-
 src/gui/timeline/track-presenter.cpp          | 18 ++++----
 src/lib/diff/gen-node.hpp                     |  1 +
 src/lib/test/test-helper.hpp                  |  7 +++
 src/proc/asset.hpp                            |  2 +-
 src/proc/streamtype.hpp                       |  2 +-
 tests/core/proc/asset/basicpipetest.cpp       | 33 ++++++-------
 .../mobject/session/defs-manager-test.cpp     | 16 +++----
 .../util-sanitised-identifier-test.cpp        |  2 +-
 14 files changed, 92 insertions(+), 69 deletions(-)

diff --git a/research/try.cpp b/research/try.cpp
index 9d2805acf..8f8108be1 100644
--- a/research/try.cpp
+++ b/research/try.cpp
@@ -39,11 +39,14 @@
 // 03/18 - Dependency Injection / Singleton initialisation / double checked locking
 // 04/18 - investigate construction of static template members
 // 08/18 - Segfault when compiling some regular expressions for EventLog search
+// 10/18 - investigate insidious reinterpret cast
 
 
 /** @file try.cpp
- * Heisenbug hunt: random crashes in BusTerm_test, seemingly emerging from regular expression compilation.
- * Not able to reproduce the crash, unfortunately. //////////////////////////////////////////////////////////TICKET #1158
+ * Document an insidious wild cast, caused by the syntax `Type(arg)`.
+ * I was under the wrong assumption this would be handled equivalent to a constructor invocation.
+ * Seemingly it is rather handled as a C-style cast, i.e. equivalent to `(Type)arg`.
+ * @see [Question on Stackoverflow](https://stackoverflow.com/q/52782967/444796)
  */
 
 typedef unsigned int uint;
@@ -52,12 +55,10 @@ typedef unsigned int uint;
 #include "lib/test/test-helper.hpp"
 #include "lib/util.hpp"
 
-#include <regex>
 #include <string>
-#include <vector>
 
 using std::string;
-using VecS = std::vector<string>;
+using util::isSameObject;
 
 
 
@@ -69,25 +70,32 @@ using VecS = std::vector<string>;
 
   
 
+class Wau
+  {
+    int i = -1;
+  };
+
+class Miau
+  {
+  public:
+    uint u = 1;
+  };
+
+
+
+
+
 
 int
 main (int, char**)
   {
-    VecS rexs{{"after.+_ATTRIBS_.+ins.+1 of 62 ≺293.gen029≻.+mut.+1 of 62 ≺293.gen029≻.+ins.+borgID.+293.+emu.+1 of 62 ≺293.gen029≻"
-              ,"after.+_ATTRIBS_.+ins.+1 of 64 ≺251.gen019≻.+mut.+1 of 64 ≺251.gen019≻.+ins.+borgID.+251.+emu.+1 of 64 ≺251.gen019≻"
-              ,"after.+_ATTRIBS_.+ins.+1 of 8 ≺203.gen036≻.+mut.+1 of 8 ≺203.gen036≻.+ins.+borgID.+203.+emu.+1 of 8 ≺203.gen036≻"
-              ,"after.+?_ATTRIBS_.+?ins.+?53 of 57 ≺358.gen010≻.+?mut.+?53 of 57 ≺358.gen010≻.+?ins.+?borgID.+?358.+?emu.+?53 of 57 ≺358.gen010≻"
-              ,"after.+?_ATTRIBS_.+?ins.+?53 of 63 ≺178.gen028≻.+?mut.+?53 of 63 ≺178.gen028≻.+?ins.+?borgID.+?178.+?emu.+?53 of 63 ≺178.gen028≻"
-              ,"after.+?_ATTRIBS_.+?ins.+?53 of 59 ≺498.gen038≻.+?mut.+?53 of 59 ≺498.gen038≻.+?ins.+?borgID.+?498.+?emu.+?53 of 59 ≺498.gen038≻"
-              ,"after.+?_ATTRIBS_.+?ins.+?53 of 60 ≺223.gen003≻.+?mut.+?53 of 60 ≺223.gen003≻.+?ins.+?borgID.+?223.+?emu.+?53 of 60 ≺223.gen003≻"
-              ,"after.+?_ATTRIBS_.+?ins.+?53 of 78 ≺121.gen015≻.+?mut.+?53 of 78 ≺121.gen015≻.+?ins.+?borgID.+?121.+?emu.+?53 of 78 ≺121.gen015≻"
-             }};
-    for (auto const& str : rexs)
-      {
-        auto rex = std::regex{str};
-        SHOW_EXPR (std::regex_search(str, rex));
-      }
+    Wau wau;
+    using ID = Miau &;
+    ID wuff = ID(wau);
     
+    cout << "Miau=" << wuff.u
+         << " ref to same object: " << isSameObject (wau, wuff)
+         << endl;
     
     cout <<  "\n.gulp.\n";
     
diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index fbe5ee31b..8b7470c2e 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -140,7 +140,7 @@ namespace interact {
                   })
                .matchElement ([&](GenNode const& spec, TimelineGui const& elm) -> bool
                   {                                            // »Matcher« : how to know we're dealing with the right timeline object
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> TimelineGui
                   {                                            // »Constructor« : what to do when the diff mentions a new entity
@@ -148,7 +148,7 @@ namespace interact {
                   })
                .buildChildMutator ([&](TimelineGui& targetTimeline, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {                                            // »Mutator« : how to apply the diff recursively to a nested scope
-                    if (ID(targetTimeline) != subID) return false;
+                    if (ID{targetTimeline} != subID) return false;
                     targetTimeline.buildMutator (buff);        //  - delegate to child(Timeline) to build nested TreeMutator
                     return true;
                   }))
diff --git a/src/gui/timeline/clip-presenter.cpp b/src/gui/timeline/clip-presenter.cpp
index 411e10c5d..19e30f7c7 100644
--- a/src/gui/timeline/clip-presenter.cpp
+++ b/src/gui/timeline/clip-presenter.cpp
@@ -99,15 +99,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PMarker const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PMarker
                   {
-                    return make_unique<MarkerWidget>(spec.idi, this->uiBus_);
+                    return make_unique<MarkerWidget> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PMarker& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   }))
@@ -118,15 +118,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PEffect const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PEffect
                   {
-                    return make_unique<ClipPresenter>(spec.idi, this->uiBus_);
+                    return make_unique<ClipPresenter> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PEffect& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   }))
@@ -137,15 +137,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PChannel const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PChannel
                   {
-                    return make_unique<ClipPresenter>(spec.idi, this->uiBus_);
+                    return make_unique<ClipPresenter> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PChannel& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   })));
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index fa85ba73f..ede6fef58 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -144,7 +144,7 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PMarker const& elm) -> bool
                   {                                            // »Matcher« : how to know we're dealing with the right object
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PMarker
                   {                                            // »Constructor« : what to do when the diff mentions a new entity
@@ -152,7 +152,7 @@ namespace timeline {
                   })
                .buildChildMutator ([&](PMarker& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {                                            // »Mutator« : how to apply the diff recursively to a nested scope
-                    if (ID(target) != subID) return false;     //  - require match on already existing child object
+                    if (ID{*target} != subID) return false;    //  - require match on already existing child object
                     target->buildMutator (buff);               //  - delegate to child to build nested TreeMutator
                     return true;
                   }))
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index aabe1ae04..8190b4d70 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -56,6 +56,8 @@ namespace timeline {
     , rootTrackID_{trackID}
     { }
   
+  TimelineGui::~TimelineGui() { }
+  
   
   /**
    * actually build a TimelineWidget to enact the role
diff --git a/src/gui/timeline/timeline-gui.hpp b/src/gui/timeline/timeline-gui.hpp
index fe03c30ea..59476467b 100644
--- a/src/gui/timeline/timeline-gui.hpp
+++ b/src/gui/timeline/timeline-gui.hpp
@@ -81,8 +81,12 @@ namespace timeline {
       
     public:
       TimelineGui (ID identity, ID trackID);
+      virtual ~TimelineGui();
       
-      // standard copy operations aceptable
+      // standard copy operations acceptable
+      
+      
+      operator ID()  const { return timelineID_; }
       
       
       /** actually build a TimelineWidget to enact the role
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index ea541c650..962e03a35 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -109,15 +109,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PMarker const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PMarker
                   {
-                    return make_unique<MarkerWidget>(spec.idi, this->uiBus_);
+                    return make_unique<MarkerWidget> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PMarker& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   }))
@@ -128,15 +128,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PClip const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PClip
                   {
-                    return make_unique<ClipPresenter>(spec.idi, this->uiBus_);
+                    return make_unique<ClipPresenter> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PClip& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   }))
@@ -147,15 +147,15 @@ namespace timeline {
                   })
                .matchElement ([&](GenNode const& spec, PFork const& elm) -> bool
                   {
-                    return spec.idi == ID(elm);
+                    return spec.idi == ID{*elm};
                   })
                .constructFrom ([&](GenNode const& spec) -> PFork
                   {
-                    return make_unique<TrackPresenter>(spec.idi, this->uiBus_);
+                    return make_unique<TrackPresenter> (spec.idi, this->uiBus_);
                   })
                .buildChildMutator ([&](PFork& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
-                    if (ID(target) != subID) return false;
+                    if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
                   })));
diff --git a/src/lib/diff/gen-node.hpp b/src/lib/diff/gen-node.hpp
index 6b77c0f3f..41606287f 100644
--- a/src/lib/diff/gen-node.hpp
+++ b/src/lib/diff/gen-node.hpp
@@ -224,6 +224,7 @@ namespace diff{
             { }
           
         public:
+          explicit
           ID (GenNode const& node)
             : ID(node.idi)
             { }
diff --git a/src/lib/test/test-helper.hpp b/src/lib/test/test-helper.hpp
index bb4141efc..dc5325dfe 100644
--- a/src/lib/test/test-helper.hpp
+++ b/src/lib/test/test-helper.hpp
@@ -147,6 +147,13 @@ namespace test{
       static_assert (not sizeof(X), "### Type Debugging ###");
     };
   
+  template<typename X>
+  void
+  typeDebugger(X&& x)
+  {
+    static_assert (not sizeof(X), "### Type Debugging ###");
+  }
+  
   
   
   namespace { // helper for printing type diagnostics
diff --git a/src/proc/asset.hpp b/src/proc/asset.hpp
index 1a0905176..58b456a30 100644
--- a/src/proc/asset.hpp
+++ b/src/proc/asset.hpp
@@ -347,7 +347,7 @@ namespace asset {
   
   /** marker constant denoting a NIL asset */
   template<class KIND>
-  ID<KIND> ID<KIND>::INVALID = ID(0);
+  ID<KIND> ID<KIND>::INVALID = ID{0};
   
   
 }} // namespace proc::asset
diff --git a/src/proc/streamtype.hpp b/src/proc/streamtype.hpp
index a6475cc60..7522dc1e6 100644
--- a/src/proc/streamtype.hpp
+++ b/src/proc/streamtype.hpp
@@ -75,7 +75,7 @@ namespace proc {
       class ImplFacade;
       class ImplConstraint;
       
-      typedef lib::idi::EntryID<StreamType> ID;
+      using ID = lib::idi::EntryID<StreamType>;
       
       
       Prototype const& prototype;
diff --git a/tests/core/proc/asset/basicpipetest.cpp b/tests/core/proc/asset/basicpipetest.cpp
index 476619c66..0947d2f6e 100644
--- a/tests/core/proc/asset/basicpipetest.cpp
+++ b/tests/core/proc/asset/basicpipetest.cpp
@@ -64,9 +64,10 @@ namespace test  {
    */
   class BasicPipe_test : public Test
     {
-      virtual void run(Arg arg) 
+      virtual void
+      run (Arg arg)
         {
-          string pipeID   = isnil(arg)?  "Black Hole" : arg[1];
+          string pipeID   = isnil (arg)?  "Black Hole" : arg[1];
           string streamID = 2>arg.size()? "teststream" : arg[2] ;
           
           createExplicit (pipeID,streamID);
@@ -80,7 +81,7 @@ namespace test  {
       
       void createExplicit (string pID, string sID)
         { 
-          string pID_sane (pID);
+          string pID_sane{pID};
           normaliseID (pID_sane);
           CHECK (pID_sane != pID);
           
@@ -89,7 +90,7 @@ namespace test  {
           CHECK (thePipe);
           CHECK (thePipe->getProcPatt());
           CHECK (thePipe->getPipeID() == pID_sane);
-          CHECK (thePipe->getStreamID() == StreamType::ID(sID));
+          CHECK (thePipe->getStreamID() == StreamType::ID{sID});
           CHECK (thePipe->shortDesc == pID_sane);
           
           Asset::Ident idi = thePipe->ident;
@@ -97,9 +98,9 @@ namespace test  {
           CHECK (contains (idi.name, thePipe->getPipeID()));
           CHECK (contains (idi.name, thePipe->getStreamID()));
           
-          Category cat (idi.category);
-          Category refcat (STRUCT,"pipes");
-          CHECK ( cat.hasKind(STRUCT) );
+          Category cat{idi.category};
+          Category refcat{STRUCT,"pipes"};
+          CHECK ( cat.hasKind (STRUCT) );
           CHECK ( cat.isWithin(refcat) );
         }
       
@@ -131,25 +132,25 @@ namespace test  {
           PPipe pipe1 = Pipe::query (""); // "the default pipe"
           PPipe pipe2;
           CHECK (pipe1);
-          CHECK (pipe1 == Session::current->defaults (Query<Pipe>()));
+          CHECK (pipe1 == Session::current->defaults (Query<Pipe>{}));
           CHECK (pipe1->ident.category.hasKind(VIDEO));
           CHECK (pipe1->getProcPatt());
-          PProcPatt propa = Session::current->defaults (Query<const ProcPatt>("pipe(default)"));
+          PProcPatt propa = Session::current->defaults (Query<const ProcPatt>{"pipe(default)"});
           CHECK (propa == pipe1->getProcPatt());
           
           // several variants to query for "the default pipe"
-          pipe2 = Session::current->defaults(Query<Pipe> ());
+          pipe2 = Session::current->defaults(Query<Pipe>{});
           CHECK (pipe2 == pipe1);
-          pipe2 = asset::Struct::retrieve (Query<Pipe> ());
+          pipe2 = asset::Struct::retrieve (Query<Pipe>{});
           CHECK (pipe2 == pipe1);
-          pipe2 = asset::Struct::retrieve (Query<Pipe> ("pipe(default)"));
+          pipe2 = asset::Struct::retrieve (Query<Pipe>{"pipe(default)"});
           CHECK (pipe2 == pipe1);
           
           string sID = pipe1->getStreamID(); // sort of a "default stream type"
           PPipe pipe3 = Pipe::query ("stream("+sID+")");
           CHECK (pipe3);
-          CHECK (pipe3->getStreamID() == StreamType::ID(sID));
-          CHECK (pipe3->getProcPatt() == Session::current->defaults (Query<const ProcPatt>("stream("+sID+")")));
+          CHECK (pipe3->getStreamID() == StreamType::ID{sID});
+          CHECK (pipe3->getProcPatt() == Session::current->defaults (Query<const ProcPatt>{"stream("+sID+")"}));
         }
       
       
@@ -174,7 +175,7 @@ namespace test  {
           //         default pipe for this pattern automatically
           PPipe pipe2x = Pipe::query ("pattern(another)");
           CHECK (pattern2 == pipe2x->getProcPatt());
-          CHECK (pipe2x == Session::current->defaults (Query<Pipe>("pattern(another)")));
+          CHECK (pipe2x == Session::current->defaults (Query<Pipe>{"pattern(another)"}));
           
           thePipe->switchProcPatt(pattern2);
           CHECK ( dependencyCheck (thePipe, pattern2));
@@ -197,7 +198,7 @@ namespace test  {
           PPipe pipe3x = Pipe::query ("pattern(another)");
           pattern3 = pipe3x->getProcPatt();                                              /////TODO: transition to P<>
           CHECK (pattern3 != pattern2);  // because pattern2 is already unlinked...
-          CHECK (pipe3x == Session::current->defaults (Query<Pipe>("pattern(another)")));
+          CHECK (pipe3x == Session::current->defaults (Query<Pipe>{"pattern(another)"}));
           CHECK (pipe3x != pipe2x);                 // ..we got a new default pipe for "pattern(another)" too!
           
           
diff --git a/tests/core/proc/mobject/session/defs-manager-test.cpp b/tests/core/proc/mobject/session/defs-manager-test.cpp
index a7db7369e..8225dcae8 100644
--- a/tests/core/proc/mobject/session/defs-manager-test.cpp
+++ b/tests/core/proc/mobject/session/defs-manager-test.cpp
@@ -128,16 +128,16 @@ namespace test    {
       retrieveConstrainedDefault (string pID, string sID)
         {
           PPipe pipe1 = Pipe::query (""); // "the default pipe"
-          CHECK ( pipe1->getStreamID() != StreamType::ID(sID),
+          CHECK ( pipe1->getStreamID() != StreamType::ID{sID},
                   "stream-ID \"%s\" not suitable for test, because "
                   "the default-pipe \"%s\" happens to have the same "
                   "stream-ID. We need it to be different",
                   sID.c_str(), pID.c_str()
                  );
           
-          string query_for_sID ("stream("+sID+")");
+          string query_for_sID{"stream("+sID+")"};
           PPipe pipe2 = Pipe::query (query_for_sID);
-          CHECK (pipe2->getStreamID() == StreamType::ID(sID));
+          CHECK (pipe2->getStreamID() == StreamType::ID{sID});
           CHECK (pipe2 != pipe1);
           CHECK (pipe2 == Pipe::query (query_for_sID));   // reproducible
         }
@@ -146,13 +146,13 @@ namespace test    {
       void
       failureCreatesNewDefault()
         {
-          PPipe pipe1 = Session::current->defaults(Query<Pipe> ("")); // "the default pipe"
+          PPipe pipe1 = Session::current->defaults(Query<Pipe>{""}); // "the default pipe"
           
           string new_pID = _Fmt{"dummy_%s_%i"}
                                % pipe1->getPipeID()
                                % std::rand()
                                ;  // make random new pipeID
-          Query<Pipe> query_for_new ("pipe("+new_pID+")");
+          Query<Pipe> query_for_new{"pipe("+new_pID+")"};
           
           CHECK (!find (query_for_new));                              // check it doesn't exist
           PPipe pipe2 = Session::current->defaults (query_for_new);   // triggers creation
@@ -170,13 +170,13 @@ namespace test    {
       void
       verifyRemoval()
         {
-          Symbol pID ("some_pipe");
-          Query<Pipe> query_for_pID ("pipe("+pID+")");
+          Symbol pID{"some_pipe"};
+          Query<Pipe> query_for_pID{"pipe("+pID+")"};
           size_t hash;
             {
               // create new pipe and declare it to be a default
               PPipe pipe1 = Struct::retrieve.newInstance<Pipe> (pID);
-              Session::current->defaults.define(pipe1);
+              Session::current->defaults.define (pipe1);
               
               CHECK (2 == pipe1.use_count());                         // the pipe1 smart-ptr and the AssetManager
               hash = pipe1->getID();
diff --git a/tests/library/util-sanitised-identifier-test.cpp b/tests/library/util-sanitised-identifier-test.cpp
index cdfd9f05b..bf8288715 100644
--- a/tests/library/util-sanitised-identifier-test.cpp
+++ b/tests/library/util-sanitised-identifier-test.cpp
@@ -46,7 +46,7 @@ namespace test {
           print_clean ("a Sentence");
           print_clean ("trailing Withespace\n       \t");
           print_clean ("with    a  \t lot\n  of Whitespace");
-          print_clean ("with\"much (punctuation)[]!");
+          print_clean ("@with\".\'much ($punctuation)[]!");
           print_clean ("§&Ω%€  leading garbage");
           print_clean ("mixed    Ω   garbage");
           print_clean ("Bääääh!!");

From d2309f003d91e8157ca1d36b3604526772abb5fa Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 12 Oct 2018 23:43:36 +0200
Subject: [PATCH 146/178] fix an off-by one, spotted by chance

---
 src/lib/symbol-impl.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/symbol-impl.cpp b/src/lib/symbol-impl.cpp
index a8c7676b9..066d16246 100644
--- a/src/lib/symbol-impl.cpp
+++ b/src/lib/symbol-impl.cpp
@@ -112,9 +112,9 @@ namespace lib {
     size_t hash=0;
     if (literal)
       {
+        size_t cnt = 1;
         const char *pos = literal;
-        size_t maxpos = STRING_MAX_RELEVANT;
-        for ( ; *pos && --maxpos; ++pos)
+        for ( ; cnt <= STRING_MAX_RELEVANT and *pos ; ++cnt, ++pos )
           hash_combine(hash, *pos);
       }
     

From a77ecb6d5d516b2ecc35b359f3a2be8696be4204 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 12 Oct 2018 23:45:49 +0200
Subject: [PATCH 147/178] change util::sanitise to filter out '

Only reatain chars, numbers and -_.+$()@
Allowing the appostroph seems entirely random and unjustified here
---
 src/lib/util.cpp      |  2 +-
 src/lib/util.hpp      | 20 ++++++++++----------
 tests/15library.tests |  2 +-
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/lib/util.cpp b/src/lib/util.cpp
index 93920c1a1..bf192f190 100644
--- a/src/lib/util.cpp
+++ b/src/lib/util.cpp
@@ -57,7 +57,7 @@ namespace util {
   ChPredicate operator! (ChPredicate p) { return not bind(p,_1); }
 
   // character classes used for sanitising a string
-  ChPredicate isValid (is_alnum() or is_any_of("-_.+$'()@"));               ///< characters to be retained
+  ChPredicate isValid (is_alnum() or is_any_of("-_.+$()@"));                ///< characters to be retained
   ChPredicate isPunct (is_space() or is_any_of(",;:#*~´`?\\=/&%![]{}<>")); ///<  punctuation to be replaced by '_'
 
   
diff --git a/src/lib/util.hpp b/src/lib/util.hpp
index 8e15d0872..493c25caa 100644
--- a/src/lib/util.hpp
+++ b/src/lib/util.hpp
@@ -336,8 +336,8 @@ namespace util {
   inline bool
   isSameObject (A const& a, B const& b)
   {
-    return static_cast<const void*> (&a)
-        == static_cast<const void*> (&b);
+    return static_cast<const void*> (std::addressof(a))
+        == static_cast<const void*> (std::addressof(b));
   }
   
   
@@ -350,14 +350,14 @@ namespace util {
    * 
    * @par Example Conversions
 \verbatim
-   "Word"                             --> 'Word'
-   "a Sentence"                       --> 'a_Sentence'
-   "trailing Withespace  \t \n"       --> 'trailing_Withespace'
-   "with    a   lot  \nof Whitespace" --> 'with_a_lot_of_Whitespace'
-   "with\"much (punctuation)[]!"      --> 'withmuch_(punctuation)'
-   "§&Ω%€  leading garbage"           --> 'leading_garbage'
-   "mixed    Ω   garbage"             --> 'mixed_garbage'
-   "Bääääh!!"                         --> 'Bh'
+   "Word"                             --> "Word"
+   "a Sentence"                       --> "a_Sentence"
+   "trailing Withespace  \t \n"       --> "trailing_Withespace"
+   "with    a   lot  \nof Whitespace" --> "with_a_lot_of_Whitespace"
+   "@with\".\'much ($punctuation)[]!" --> "@with.much_($punctuation)"
+   "§&Ω%€  leading garbage"           --> "leading_garbage"
+   "mixed    Ω   garbage"             --> "mixed_garbage"
+   "Bääääh!!"                         --> "Bh"
 \endverbatim
    * @see \ref UtilSanitizedIdentifier_test
    * @see \ref lib::meta::sanitisedSymbol()
diff --git a/tests/15library.tests b/tests/15library.tests
index 03944a017..88c97555e 100644
--- a/tests/15library.tests
+++ b/tests/15library.tests
@@ -713,7 +713,7 @@ out-lit: 'trailing Withespace
 out-lit:        	' --> 'trailing_Withespace'
 out-lit: 'with    a  	 lot
 out-lit:   of Whitespace' --> 'with_a_lot_of_Whitespace'
-out-lit: 'with"much (punctuation)[]!' --> 'withmuch_(punctuation)'
+out-lit: '@with".'much (\$punctuation)[]!' --> '@with.much_(\$punctuation)'
 out-lit: '§&Ω%€  leading garbage' --> 'leading_garbage'
 out-lit: 'mixed    Ω   garbage' --> 'mixed_garbage'
 out-lit: 'Bääääh!!' --> 'Bh'

From edf577187b810534ab266da3d2753b8aed2b7adc Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 13 Oct 2018 00:25:51 +0200
Subject: [PATCH 148/178] Timeline: now able to define delegating diff mutation
 binding

---
 src/gui/model/w-link.hpp             | 6 +++++-
 src/gui/timeline/timeline-gui.cpp    | 8 ++++++--
 src/gui/timeline/timeline-widget.cpp | 8 +++++---
 src/gui/timeline/timeline-widget.hpp | 5 ++++-
 4 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/src/gui/model/w-link.hpp b/src/gui/model/w-link.hpp
index b1807fda5..a71e9b6f5 100644
--- a/src/gui/model/w-link.hpp
+++ b/src/gui/model/w-link.hpp
@@ -149,7 +149,7 @@ namespace model {
       explicit
       operator bool()  const
         {
-          return bool(widget_);
+          return bool{widget_};
         }
       
       TAR&
@@ -167,6 +167,10 @@ namespace model {
         }
       
       
+      bool isValid()  const { return bool{*this}; }
+      bool isActive() const { return bool{*this}; }
+      
+      
       /** detach and deactivate this link
        * @note EX_STRONG (but only under the assumption that also
        *       sigc::trackable::remove_destroy_notify_cllback is EX_STRONG)
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index 8190b4d70..5ea8576d4 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -81,8 +81,12 @@ namespace timeline {
   void
   TimelineGui::buildMutator (lib::diff::TreeMutator::Handle buffer)
   {
-    if (*this)
-      UNIMPLEMENTED ("actually delegate diff application to the target");
+    if (this->isActive())
+      operator*().buildMutator (buffer);  // delegate to TimelineController
+    else                                 //  else when no widget exists...
+      buffer.create(
+        TreeMutator::build()
+          .ignoreAllChanges());       //     ...consume and ignore diff
   }
   
   
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index cbb72058c..7fcc6db8b 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -73,13 +73,15 @@ namespace timeline {
       UNIMPLEMENTED ("build the timeline UI");
     }
   
+  TimelineWidget::~TimelineWidget() { }
   
-  TimelineWidget::~TimelineWidget()
+  
+  void
+  TimelineWidget::buildMutator (lib::diff::TreeMutator::Handle buff)
   {
+    control_->buildMutator (buff);
   }
   
   
   
-  
-  
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index f8c7a7181..cac87d043 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -113,12 +113,15 @@ namespace timeline {
        */
       TimelineWidget (BusTerm::ID identity, BusTerm::ID trackID, BusTerm& nexus);
       
-     ~TimelineWidget();  
+     ~TimelineWidget();
       
       
       
     public: /* ===== Control interface ===== */
       
+      /** allow for diff mutation (delegated to TimelineController */
+      void buildMutator (lib::diff::TreeMutator::Handle);
+      
     public: /* ===== Signals ===== */
       
     private:/* ===== Events ===== */

From bfca473dce814bfcac7382d9468ab96e1d3dfae2 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 13 Oct 2018 02:46:09 +0200
Subject: [PATCH 149/178] Timeline: decide upon the diff format expected for
 creating a timeline

other than the regular way of building an object,
we do expect a minimal structure to be sent right within the INS message.

Rationale: the standard way would allow for too much leeway and created
unwanted intermediary states. The non-standard way decided upon here
is well within the limits of our diff language
---
 src/gui/interact/interaction-director.cpp |  42 +-
 src/gui/timeline/timeline-controller.cpp  |   4 +-
 src/lib/diff/diff-language.hpp            |   3 +-
 src/lib/diff/diff.cpp                     |   1 +
 wiki/thinkPad.ichthyo.mm                  | 725 ++++++++++++++--------
 5 files changed, 512 insertions(+), 263 deletions(-)

diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index 8b7470c2e..bd2092e5e 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -50,6 +50,7 @@
 #include "proc/cmd.hpp"
 #include "backend/real-clock.hpp"
 #include "lib/diff/tree-mutator.hpp"
+#include "lib/format-string.hpp"
 #include "lib/format-obj.hpp"
 //#include "gui/ui-bus.hpp"
 //#include "lib/util.hpp"
@@ -58,6 +59,7 @@
 //#include <list>
 
 //using util::isnil;
+using util::_Fmt;
 //using std::list;
 //using std::shared_ptr;
 using lib::idi::EntryID;
@@ -65,6 +67,7 @@ using lib::hash::LuidH;
 using lib::diff::Rec;
 using lib::diff::TreeMutator;
 using lib::diff::collection;
+using lib::diff::LUMIERA_ERROR_DIFF_STRUCTURE;
 using std::make_unique;
 using util::toString;
 
@@ -309,6 +312,38 @@ namespace interact {
   }
   
   
+  namespace {
+    /**
+     * The timeline is actually a front-end to a binding to a root track.
+     * For that reason, we always create the root-track representation alongside
+     * the timeline, and thus we need a very special INS message to create a timeline:
+     * - it must be a record (an "object")
+     * - a nested attribute with key ATTR_fork is mandatory
+     * - this nested attribute likewise needs to be a record
+     * - and must be tagged with TYPE_Fork
+     * More specifically, the usual way to deliver such a structure is not allowed here,
+     * which would be first to send an empty record and then to open and populate it.
+     * All the elements mentioned above need to be present right within the payload
+     * value of the INS message creating the timeline. This non-standard format is
+     * perfectly legal in our tree diff language (just requires a heap allocation
+     * behind the scenes to hold the nested data, but who cares?)
+     */
+    ID
+    verifyDiffStructure_and_extract_RootTrack (GenNode const& spec)
+    {
+      if (not (spec.data.isNested()
+               and spec.data.get<Rec>().hasAttribute(string{ATTR_fork})
+               and TYPE_Fork == spec.data.get<Rec>().get(string{ATTR_fork}).data.recordType()
+         )    )
+        throw error::State (_Fmt{"When populating a new Timeline, a root track must be given immediately"
+                                 "nested into INS message. We got the following initialisation payload: %s"}
+                                % spec                      
+                           , LERR_(DIFF_STRUCTURE));
+      
+      return spec.data.get<Rec>().get(string{ATTR_fork}).idi;
+    }
+  }
+  
   /** @internal allocate a new TimelineWidget and attach it as child.
    * @todo is it really necessary to make such strong assumptions
    *       regarding the format of the diff spec provided for
@@ -319,11 +354,8 @@ namespace interact {
   {
     unimplemented ("allocate a TimelineWidget in some TimelinePanel and attach it's controller as child entity");
     
-    REQUIRE (spec.data.isNested());
-    REQUIRE (spec.data.get<Rec>().hasAttribute(string{ATTR_fork}));
-    REQUIRE (TYPE_Fork == spec.data.get<Rec>().get(string{ATTR_fork}).data.recordType());
-    
-    TimelineGui anchorProxy{spec.idi, spec.data.get<Rec>().get(string{ATTR_fork}).idi};
+    ID rootTrack = verifyDiffStructure_and_extract_RootTrack (spec);
+    TimelineGui anchorProxy{spec.idi, rootTrack};
     anchorProxy.buildTimelineWidget (this->uiBus_);  ///////////////////////////////////////////TODO really create it right here?
     return anchorProxy;
   }
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index ede6fef58..f0b359c9e 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -157,12 +157,12 @@ namespace timeline {
                     return true;
                   }))
         .mutateAttrib(ATTR_fork, [&](TreeMutator::Handle buff)
-            {                                                  // »Attribute Mutator« : how enter an object field as nested scope
+            {                                                  // »Attribute Mutator« : how to enter an object field as nested scope
               REQUIRE (fork_);
               fork_->buildMutator(buff);
             })
         .change(ATTR_name, [&](string val)
-            {                                                  // »Attribute Setter« : how assign a new value to some object field
+            {                                                  // »Attribute Setter« : how to assign a new value to some object field
               name_ = val;
             }));
   }
diff --git a/src/lib/diff/diff-language.hpp b/src/lib/diff/diff-language.hpp
index c7fe57ceb..511108389 100644
--- a/src/lib/diff/diff-language.hpp
+++ b/src/lib/diff/diff-language.hpp
@@ -100,7 +100,8 @@ namespace diff{
   
   namespace error = lumiera::error;
   
-  LUMIERA_ERROR_DECLARE(DIFF_CONFLICT); ///< Collision in diff application: contents of target not as expected.
+  LUMIERA_ERROR_DECLARE(DIFF_STRUCTURE); ///< Invalid diff structure: implicit rules and assumptions violated.
+  LUMIERA_ERROR_DECLARE(DIFF_CONFLICT); ///<  Collision in diff application: contents of target not as expected.
   
   
   template<class I, typename E>
diff --git a/src/lib/diff/diff.cpp b/src/lib/diff/diff.cpp
index 95de683a0..54d5224df 100644
--- a/src/lib/diff/diff.cpp
+++ b/src/lib/diff/diff.cpp
@@ -39,6 +39,7 @@
 namespace lib {
 namespace diff{
   
+  LUMIERA_ERROR_DEFINE(DIFF_STRUCTURE, "Invalid diff structure: implicit rules and assumptions violated.");
   LUMIERA_ERROR_DEFINE(DIFF_CONFLICT, "Collision in diff application: contents of target not as expected.");
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 72a320157..facc262a9 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5333,7 +5333,7 @@
 </node>
 <node CREATED="1534336252375" HGAP="216" ID="ID_1755017021" MODIFIED="1538938719705" TEXT="Hilfsmittel" VSHIFT="6">
 <node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine">
-<node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1537659720796" TEXT="primary widgets">
+<node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1539382657200" TEXT="primary widgets">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5363,13 +5363,14 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1538941006509" TEXT="Timeline">
 <linktarget COLOR="#7d91d6" DESTINATION="ID_1613745412" ENDARROW="Default" ENDINCLINATION="-63;-32;" ID="Arrow_ID_1377777978" SOURCE="ID_1327960211" STARTARROW="None" STARTINCLINATION="-144;16;"/>
 </node>
 <node CREATED="1537659870415" ID="ID_1181375258" MODIFIED="1537659875274" TEXT="Property-Grid"/>
 </node>
-<node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1537659851138" TEXT="building blocks">
+<node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1539382657211" TEXT="building blocks">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5396,7 +5397,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1538583873795" ID="ID_1515056203" MODIFIED="1538583876382" TEXT="spezifisch">
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
@@ -5411,7 +5413,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1537961731447" TEXT="frameworks">
+<node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1539382657231" TEXT="frameworks">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5421,7 +5423,8 @@
       vorbereitete Grundstrukturen f&#252;r immer wiederkehrende Setups
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1537961734956" FOLDED="true" ID="ID_345535043" MODIFIED="1538583863918" TEXT="Notebook-Widget">
 <node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
 <icon BUILTIN="forward"/>
@@ -5616,7 +5619,7 @@
 <node CREATED="1538710388956" ID="ID_17203500" MODIFIED="1538710402683" TEXT="in GTK-3 entspricht das window">
 <icon BUILTIN="forward"/>
 </node>
-<node CREATED="1538710407602" ID="ID_1860886507" MODIFIED="1538710449384" TEXT="Regel...">
+<node CREATED="1538710407602" ID="ID_1860886507" MODIFIED="1539382657296" TEXT="Regel...">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5629,7 +5632,8 @@
       Im Zweifelsfall den GTK+ Inspector verwenden!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5648,7 +5652,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="stop-sign"/>
 </node>
-<node COLOR="#338800" CREATED="1538696720743" ID="ID_50558236" MODIFIED="1538696741285" TEXT="ersatzlos entfernt">
+<node COLOR="#338800" CREATED="1538696720743" ID="ID_50558236" MODIFIED="1539382657310" TEXT="ersatzlos entfernt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5658,7 +5662,8 @@
       CSS gen&#252;gt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -5671,7 +5676,7 @@
 <node CREATED="1538696930403" HGAP="38" ID="ID_280002018" MODIFIED="1538697125725" TEXT="Idee: &quot;inherit&quot; auf h&#xf6;chster Ebene" VSHIFT="3">
 <icon BUILTIN="idea"/>
 <node CREATED="1538696962271" ID="ID_46020871" MODIFIED="1538696986223" TEXT="unser Stylesheet hat GTK_STYLE_PROVIDER_PRIORITY_APPLICATION"/>
-<node CREATED="1538696988803" ID="ID_1662822982" MODIFIED="1538697103482">
+<node CREATED="1538696988803" ID="ID_1662822982" MODIFIED="1539382657321">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -5706,7 +5711,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5780,7 +5786,7 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493853541747" ID="ID_689819683" MODIFIED="1518487921059" TEXT="TODO">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1493853548739" ID="ID_949985796" MODIFIED="1518487921059" TEXT="Project &amp; Controller restlos entfernen">
+<node CREATED="1493853548739" ID="ID_949985796" MODIFIED="1539382657342" TEXT="Project &amp; Controller restlos entfernen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5793,10 +5799,11 @@
       da&#223; die alte, obsolete Timeline zur&#252;ckgebaut ist
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="hourglass"/>
 </node>
-<node CREATED="1493853590149" ID="ID_1075149702" MODIFIED="1518487921059" TEXT="Race beim triggerShutdown">
+<node CREATED="1493853590149" ID="ID_1075149702" MODIFIED="1539382657347" TEXT="Race beim triggerShutdown">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5812,7 +5819,8 @@
       bevor die Notification-Facade ge&#246;ffnet werden konnte
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5864,7 +5872,7 @@
 <icon BUILTIN="bell"/>
 <node CREATED="1495234856782" ID="ID_1605922951" MODIFIED="1518487921060" TEXT="machen wir bisher nicht"/>
 <node CREATED="1495234865717" ID="ID_1261122199" MODIFIED="1518487921060" TEXT="ist das notwendig?"/>
-<node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1538588303275" TEXT="wohl nicht">
+<node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1539382657363" TEXT="wohl nicht">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5895,7 +5903,8 @@
       Allerdings habe ich an der Stelle immer noch GTK-Assertions
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5943,7 +5952,7 @@
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493768617653" ID="ID_292624709" MODIFIED="1518487921060" TEXT="f&#xe4;llt anscheinend ersatzlos weg"/>
 <node CREATED="1493768625564" ID="ID_1620270152" MODIFIED="1518487921060" TEXT="Verdacht: stattdessen Gtk::Application"/>
-<node CREATED="1495218227391" ID="ID_1156276489" MODIFIED="1518487921060" TEXT="Beschlu&#xdf;: vorerst Gtk::Action / ActionGroup weiter verwenden">
+<node CREATED="1495218227391" ID="ID_1156276489" MODIFIED="1539382657381" TEXT="Beschlu&#xdf;: vorerst Gtk::Action / ActionGroup weiter verwenden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5971,7 +5980,8 @@
       ist, da&#223; Gio::Application sofort auch gleich eine dBus-Verbindung hochf&#228;hrt.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1485457105010" HGAP="49" ID="ID_202831328" MODIFIED="1518487921060" TEXT="neuer Weg" VSHIFT="21">
@@ -16491,6 +16501,20 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539141095892" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1539388923323" ID="ID_585499856" MODIFIED="1539389164184" TEXT="Frage: wann wird eine Timeline im GUI repr&#xe4;sentiert?">
+<arrowlink COLOR="#c8a1fe" DESTINATION="ID_430199880" ENDARROW="Default" ENDINCLINATION="-629;0;" ID="Arrow_ID_1293894659" STARTARROW="None" STARTINCLINATION="-505;56;"/>
+<node CREATED="1539389169498" ID="ID_1287197830" MODIFIED="1539389171373" TEXT="immer?"/>
+<node CREATED="1539389172250" ID="ID_1511105173" MODIFIED="1539389178292" TEXT="nur machmal?"/>
+<node CREATED="1539389178833" ID="ID_1726056610" MODIFIED="1539389182964" TEXT="wer entscheidet?"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539389184120" ID="ID_1773551633" MODIFIED="1539389197990" TEXT="vorl&#xe4;ufig: immer">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node CREATED="1539389396443" ID="ID_1588695969" MODIFIED="1539389415236" TEXT="Konsequenz: Inaktiv == reine UI-Logik">
+<node CREATED="1539389417033" ID="ID_1789060953" MODIFIED="1539389431986" TEXT="Schlie&#xdf;en eines Tab"/>
+<node CREATED="1539389434086" ID="ID_1428746299" MODIFIED="1539389441601" TEXT="mu&#xdf; das Widget zerst&#xf6;ren"/>
+<node CREATED="1539389442477" ID="ID_803437655" MODIFIED="1539389449704" TEXT="TimelineGui wird inaktiv"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539141166595" TEXT="TimelineWidget installieren">
@@ -16525,38 +16549,42 @@
 <arrowlink COLOR="#bfb5ce" DESTINATION="ID_1028434909" ENDARROW="Default" ENDINCLINATION="-1311;-1012;" ID="Arrow_ID_1339464508" STARTARROW="None" STARTINCLINATION="505;-47;"/>
 <icon BUILTIN="hourglass"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539262387431" ID="ID_385121370" MODIFIED="1539262923936" TEXT="TimelineGui">
+<node COLOR="#338800" CREATED="1539262387431" ID="ID_385121370" MODIFIED="1539382626675" TEXT="TimelineGui">
 <linktarget COLOR="#732647" DESTINATION="ID_385121370" ENDARROW="Default" ENDINCLINATION="93;-27;" ID="Arrow_ID_384022851" SOURCE="ID_1121710933" STARTARROW="None" STARTINCLINATION="-2;36;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1539262834731" ID="ID_1647910407" MODIFIED="1539270163274" TEXT="basiert auf WLink">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539262840962" ID="ID_1624846094" MODIFIED="1539270817730" TEXT="delegiert diffMutable">
+<node COLOR="#338800" CREATED="1539262840962" ID="ID_1624846094" MODIFIED="1539382624533" TEXT="delegiert diffMutable">
 <arrowlink DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" STARTARROW="None" STARTINCLINATION="117;0;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1539262860719" ID="ID_113907558" MODIFIED="1539270188870" TEXT="ist ein smart-ptr&lt;TimelineWidget&gt;">
 <icon BUILTIN="info"/>
 </node>
+<node COLOR="#338800" CREATED="1539382633847" ID="ID_376948699" MODIFIED="1539382641418" TEXT="h&#xe4;llt die Timeline-ID bereit">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539270786646" ID="ID_1019344552" MODIFIED="1539270880066" TEXT="delegierenden Mutator implementieren">
-<icon BUILTIN="flag-yellow"/>
-<node CREATED="1539270801572" ID="ID_1535443502" MODIFIED="1539270808254" TEXT="f&#xfc;r InteractionDirector">
-<node CREATED="1539270491013" ID="ID_1136748343" MODIFIED="1539270871247" TEXT="Problem der korrekten Diff-Struktur">
+</node>
+<node COLOR="#338800" CREATED="1539270786646" ID="ID_1019344552" MODIFIED="1539382645592" TEXT="delegierenden Mutator implementieren">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1539270801572" ID="ID_1535443502" MODIFIED="1539382645426" TEXT="f&#xfc;r InteractionDirector">
+<node CREATED="1539270491013" ID="ID_1136748343" MODIFIED="1539388288192" TEXT="Problem der korrekten Diff-Struktur">
 <arrowlink COLOR="#cbada9" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="1069;-129;" ID="Arrow_ID_46239762" STARTARROW="None" STARTINCLINATION="-474;40;"/>
 <icon BUILTIN="messagebox_warning"/>
 </node>
+<node CREATED="1539382792997" ID="ID_1411304100" MODIFIED="1539382819014" TEXT="im Diff mu&#xdf; jeweils die Root-Track-ID mitkommen"/>
 </node>
-<node CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539270817730" TEXT="f&#xfc;r TimelineGui">
+<node COLOR="#435e98" CREATED="1539270808827" ID="ID_1352270227" MODIFIED="1539382652913" TEXT="f&#xfc;r TimelineGui">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1352270227" ENDARROW="Default" ENDINCLINATION="117;0;" ID="Arrow_ID_1672775567" SOURCE="ID_1624846094" STARTARROW="None" STARTINCLINATION="117;0;"/>
-<node COLOR="#435e98" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539302548248" TEXT="Problem: diff ignorieren" VSHIFT="23">
+<node COLOR="#435e98" CREATED="1539294555064" HGAP="45" ID="ID_1365984217" MODIFIED="1539382645426" TEXT="Problem: diff ignorieren" VSHIFT="23">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1539294576338" ID="ID_485684974" MODIFIED="1539294587881" TEXT="kann das auftreten....?">
+<node CREATED="1539294576338" ID="ID_485684974" MODIFIED="1539382645426" TEXT="kann das auftreten....?">
 <icon BUILTIN="help"/>
-<node CREATED="1539294589200" ID="ID_1206613848" MODIFIED="1539294592657" TEXT="ja">
+<node CREATED="1539294589200" ID="ID_1206613848" MODIFIED="1539382645426" TEXT="ja">
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node CREATED="1539294594367" ID="ID_451112886" MODIFIED="1539294672397" TEXT="wenn InteractionDirector selber ein Diff empf&#xe4;ngt...">
+<node CREATED="1539294594367" ID="ID_451112886" MODIFIED="1539382645426" TEXT="wenn InteractionDirector selber ein Diff empf&#xe4;ngt...">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -16576,10 +16604,10 @@
 </richcontent>
 </node>
 </node>
-<node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539294693604" TEXT="TreeMutator scheitert per Default">
+<node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539382645426" TEXT="TreeMutator scheitert per Default">
 <icon BUILTIN="broken-line"/>
 </node>
-<node COLOR="#338800" CREATED="1539294698801" ID="ID_1533611583" MODIFIED="1539302545239" TEXT="also brauche ich einen /dev/null-Mutator">
+<node COLOR="#338800" CREATED="1539294698801" FOLDED="true" ID="ID_1533611583" MODIFIED="1539382645426" TEXT="also brauche ich einen /dev/null-Mutator">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1539294727470" ID="ID_1958316881" MODIFIED="1539299017213" TEXT="speziellen Binding-Layer fabrizieren">
 <icon BUILTIN="button_ok"/>
@@ -16964,7 +16992,7 @@
 <node CREATED="1485126466520" ID="ID_717310004" MODIFIED="1518487921077" TEXT="WindowManager" VSHIFT="34">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1485457325724" ID="ID_1954589768" MODIFIED="1518487921077" TEXT="nur f&#xfc;r die Hauptfenster zust&#xe4;ndig"/>
-<node CREATED="1485457328043" ID="ID_1787642462" MODIFIED="1518487921077" TEXT="wir haben kein ApplicationWindow">
+<node CREATED="1485457328043" ID="ID_1787642462" MODIFIED="1539382657537" TEXT="wir haben kein ApplicationWindow">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -16974,7 +17002,8 @@
       ...denn das ist das vereinfachte Setup f&#252;r &quot;einfache&quot; Applikationen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1485457370310" ID="ID_1931452525" MODIFIED="1518487921077" TEXT="GtkWindow sind v&#xf6;llig ausreichend"/>
@@ -17350,7 +17379,7 @@
 <icon BUILTIN="yes"/>
 <node CREATED="1504386527936" ID="ID_307889825" MODIFIED="1518487921078" TEXT="mu&#xdf; ID finden k&#xf6;nnen"/>
 <node CREATED="1504386535447" ID="ID_426578263" MODIFIED="1518487921078" TEXT="brauche Service zum Erzeugen/L&#xf6;schen"/>
-<node CREATED="1504386595679" ID="ID_1383687482" MODIFIED="1518487921078" TEXT="Mutation: brauche Model-Platzhalter">
+<node CREATED="1504386595679" ID="ID_1383687482" MODIFIED="1539382657630" TEXT="Mutation: brauche Model-Platzhalter">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17360,9 +17389,10 @@
       das Diff wird auf den Platzhalter angewendet
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1504386636074" ID="ID_1996752633" MODIFIED="1518487921078" TEXT="automatisches Management von&#xf6;ten">
+<node CREATED="1504386636074" ID="ID_1996752633" MODIFIED="1539382657639" TEXT="automatisches Management von&#xf6;ten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17375,7 +17405,8 @@
       dann mu&#223; dieses automatisch deregistriert werden
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1504371342426" ID="ID_869653682" MODIFIED="1518487921078">
 <richcontent TYPE="NODE"><html>
@@ -17620,7 +17651,7 @@
 <node CREATED="1477600044069" ID="ID_217967290" MODIFIED="1518487921079" TEXT="technisch">
 <node CREATED="1477600126514" ID="ID_1433799303" MODIFIED="1518487921079" TEXT="grunds&#xe4;tzlich....">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<node CREATED="1477600134217" ID="ID_1352260964" MODIFIED="1518487921079" TEXT="wie viel selber machen?">
+<node CREATED="1477600134217" ID="ID_1352260964" MODIFIED="1539382657797" TEXT="wie viel selber machen?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17633,7 +17664,8 @@
       und welchen Teil des Verhaltens &#252;berlassen wir GTK
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1477600216950" ID="ID_1935952349" MODIFIED="1518487921079" TEXT="focus">
@@ -17674,7 +17706,7 @@
 </node>
 <node CREATED="1479678484210" ID="ID_1561971595" MODIFIED="1518487921079" TEXT="Struktur">
 <node CREATED="1479678496272" ID="ID_807567871" LINK="file:///home/hiv/devel/lumi/wiki/renderengine.html#GuiTimelineWidgetStructure" MODIFIED="1518487921079" TEXT="Analyse">
-<node CREATED="1479678503071" ID="ID_806149006" MODIFIED="1518487921079" TEXT="Grid bringt nix">
+<node CREATED="1479678503071" ID="ID_806149006" MODIFIED="1539382657823" TEXT="Grid bringt nix">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17690,7 +17722,8 @@
       Details im&#160;&#160;TiddlyWiki....
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1479678634213" ID="ID_432405176" MODIFIED="1518487921079" TEXT="rekursive Struktur schaffen">
@@ -17743,7 +17776,7 @@
 <node CREATED="1480724724585" ID="ID_576219568" MODIFIED="1518487921080" TEXT="mu&#xdf; f&#xfc;r alle Struktur&#xe4;nderungen delegieren"/>
 <node CREATED="1480724738583" ID="ID_403933116" MODIFIED="1518487921080" TEXT="Achtung: Tangible is noncopyable">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1480724761876" ID="ID_335451126" MODIFIED="1518487921080" TEXT="wegen BusTerm">
+<node CREATED="1480724761876" ID="ID_335451126" MODIFIED="1539382657865" TEXT="wegen BusTerm">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17753,7 +17786,8 @@
       braucht feste Speicher-Addresse
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480724781801" ID="ID_198046255" MODIFIED="1518487921080" TEXT="folglich: nicht in STL-Container">
 <icon BUILTIN="stop-sign"/>
@@ -17762,7 +17796,7 @@
 </node>
 <node CREATED="1480724461860" ID="ID_865875607" MODIFIED="1518487921080" TEXT="Controller is Tangible">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1480724851312" ID="ID_1653680733" MODIFIED="1518487921080" TEXT="erzeugt R&#xfc;ckbezug f&#xfc;r Notifications">
+<node CREATED="1480724851312" ID="ID_1653680733" MODIFIED="1539382657875" TEXT="erzeugt R&#xfc;ckbezug f&#xfc;r Notifications">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17775,7 +17809,8 @@
       und sei es auch blo&#223; &#252;ber ein Interface!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480724910096" ID="ID_874781354" MODIFIED="1518487921080" TEXT="kann direkt das View-Modell manipulieren"/>
 <node CREATED="1480724927814" ID="ID_1912287440" MODIFIED="1518487921080" TEXT="ist nicht direkt erreichbar">
@@ -17790,7 +17825,7 @@
 <icon BUILTIN="idea"/>
 <node CREATED="1480724983774" ID="ID_845297603" MODIFIED="1518487921080" TEXT="hei&#xdf;t: Manipulation au&#xdf;erhalb des Diff-Systems"/>
 <node CREATED="1480725000029" ID="ID_1586514211" MODIFIED="1518487921080" TEXT="wir steigen stets auf Ebene einer Timeline ein"/>
-<node CREATED="1480725012731" ID="ID_9332776" MODIFIED="1518487921080">
+<node CREATED="1480725012731" ID="ID_9332776" MODIFIED="1539382657892">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17824,7 +17859,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1480725106478" ID="ID_550796340" MODIFIED="1518487921080" TEXT="effektiv auch die L&#xf6;sung f&#xfc;r Alternative-2">
@@ -17912,6 +17948,37 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539388923323" ID="ID_430199880" MODIFIED="1539389164184">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <font color="#e71c1c">Problem</font>: alle Timelines der Session repr&#228;sentieren?
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#c8a1fe" DESTINATION="ID_430199880" ENDARROW="Default" ENDINCLINATION="-629;0;" ID="Arrow_ID_1293894659" SOURCE="ID_585499856" STARTARROW="None" STARTINCLINATION="-505;56;"/>
+<icon BUILTIN="help"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1539389184120" ID="ID_1213259045" MODIFIED="1539389277600" TEXT="vorl&#xe4;ufig: immer">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1539389333308" ID="ID_1581229247" MODIFIED="1539389338543" TEXT="wer kann das entscheiden?">
+<node CREATED="1539389339515" ID="ID_1778009129" MODIFIED="1539389365603" TEXT="Entscheider mu&#xdf; am UI-Bus h&#xe4;ngen">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1539389345674" ID="ID_742174622" MODIFIED="1539389354944" TEXT="also der TimelineController">
+<icon BUILTIN="forward"/>
+</node>
+</node>
+<node CREATED="1539389243488" ID="ID_1100284261" MODIFIED="1539389259604" TEXT="man k&#xf6;nnte das als GUI-State auslegen">
+<icon BUILTIN="idea"/>
+<node CREATED="1539389266141" ID="ID_1321613506" MODIFIED="1539389269224" TEXT="collapsed?"/>
+</node>
+</node>
 </node>
 <node CREATED="1479774700668" HGAP="47" ID="ID_1407821684" MODIFIED="1518487921080" TEXT="Mutation" VSHIFT="13">
 <node CREATED="1479774705839" ID="ID_301222108" MODIFIED="1518487921080" TEXT="Problem">
@@ -17964,7 +18031,7 @@
 <node CREATED="1480120531935" ID="ID_1894474191" MODIFIED="1518487921080" TEXT="Dekorator auf TreeMutator">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1480121069464" ID="ID_1707876611" MODIFIED="1518487921080" TEXT="Operationen mitlesen"/>
-<node CREATED="1480121074703" ID="ID_1346494338" MODIFIED="1518487921080" TEXT="Notifikations-Schnittstelle">
+<node CREATED="1480121074703" ID="ID_1346494338" MODIFIED="1539382658482" TEXT="Notifikations-Schnittstelle">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17980,9 +18047,10 @@
       Implementiert w&#252;rde sie vom jeweiligen Widget
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480123478013" ID="ID_1281325973" MODIFIED="1518487921080" TEXT="eine Ebene zu tief, aber geht noch">
+<node CREATED="1480123478013" ID="ID_1281325973" MODIFIED="1539382658514" TEXT="eine Ebene zu tief, aber geht noch">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18010,9 +18078,10 @@
       Der Dekorator w&#252;rde also auf dem TreeMutator sitzen...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480121092492" ID="ID_1543810707" MODIFIED="1518487921081" TEXT="L&#xf6;schungen nur heuristisch zu erkennen">
+<node CREATED="1480121092492" ID="ID_1543810707" MODIFIED="1539382658523" TEXT="L&#xf6;schungen nur heuristisch zu erkennen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18031,9 +18100,10 @@
       Daher gibt es die matchSrc-Operation. Effektiv wird die aber nur bei einem Delete aufgerufen...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480123741362" ID="ID_586646895" MODIFIED="1518487921081" TEXT="unsauber, h&#xe4;sslich, ungl&#xfc;cklich">
+<node CREATED="1480123741362" ID="ID_586646895" MODIFIED="1539382658531" TEXT="unsauber, h&#xe4;sslich, ungl&#xfc;cklich">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18054,7 +18124,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480123380843" ID="ID_1717666432" MODIFIED="1518487921081" TEXT="w&#xe4;re prinzipiell machbar">
 <icon BUILTIN="forward"/>
@@ -18132,7 +18203,7 @@
 <node CREATED="1480300682256" ID="ID_1828380850" MODIFIED="1518487921081" TEXT="Presenter">
 <node CREATED="1480300690191" ID="ID_1405428387" MODIFIED="1518487921081" TEXT="sind lokales Struktur-Modell">
 <node CREATED="1480300733506" ID="ID_186466790" MODIFIED="1518487921081" TEXT="werden per Diff manipuliert"/>
-<node CREATED="1480300740537" ID="ID_1322437138" MODIFIED="1518487921081" TEXT="enthalten die Modell-Binding-Daten">
+<node CREATED="1480300740537" ID="ID_1322437138" MODIFIED="1539382658584" TEXT="enthalten die Modell-Binding-Daten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18142,7 +18213,8 @@
       d.h. eine LUID
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1480300699694" ID="ID_1686150984" MODIFIED="1518487921081" TEXT="aktiver Part der View-Steuerung"/>
@@ -18175,7 +18247,7 @@
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1480725247115" ID="ID_1533101483" MODIFIED="1518487921081" TEXT="Konstruktion erfordert...">
-<node CREATED="1480796814716" ID="ID_1742743432" MODIFIED="1518487921081" TEXT="ID einer Timeline">
+<node CREATED="1480796814716" ID="ID_1742743432" MODIFIED="1539382658625" TEXT="ID einer Timeline">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18188,7 +18260,8 @@
       Irgend eine BareEntryID gen&#252;gt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480725273775" ID="ID_1495656573" MODIFIED="1518487921081" TEXT="Bus-Term-Referenz"/>
 </node>
@@ -18217,7 +18290,7 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1480694557112" ID="ID_786517324" MODIFIED="1518487921081" TEXT="Widget ist Startpunkt"/>
 <node CREATED="1480694571310" ID="ID_1188786444" MODIFIED="1518487921081" TEXT="aber Controller wird Chef"/>
-<node CREATED="1480725633399" ID="ID_1475661668" MODIFIED="1518487921081" TEXT="mu&#xdf; erst mal Controller implementieren">
+<node CREATED="1480725633399" ID="ID_1475661668" MODIFIED="1539382658797" TEXT="mu&#xdf; erst mal Controller implementieren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18227,13 +18300,14 @@
       ...abstraktes Interface
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1480725680713" ID="ID_448125852" MODIFIED="1518487921081" TEXT="Delegate for Notification">
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1480725704142" ID="ID_992732373" MODIFIED="1518487921081" TEXT="was bleibt abstrakt">
-<node CREATED="1480725715916" ID="ID_890987188" MODIFIED="1518487921081" TEXT="buildMutator">
+<node CREATED="1480725715916" ID="ID_890987188" MODIFIED="1539382658886" TEXT="buildMutator">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18249,7 +18323,8 @@
       um die Bindung herzustellen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
@@ -18257,7 +18332,7 @@
 <node CREATED="1480741498930" ID="ID_1605140473" MODIFIED="1518487921081" TEXT="hat nur einen einziten RootTrack">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1480742405505" ID="ID_1590367176" MODIFIED="1518487921081" TEXT="ACHTUNG: leere Sequenz?">
+<node CREATED="1480742405505" ID="ID_1590367176" MODIFIED="1539382658949" TEXT="ACHTUNG: leere Sequenz?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18270,7 +18345,8 @@
       oder eine Sequenz ohne root-Fork zulassen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="messagebox_warning"/>
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@@ -18280,7 +18356,7 @@
 </node>
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-<node CREATED="1480776096665" ID="ID_1492275941" MODIFIED="1518487921081" TEXT="das hei&#xdf;t....">
+<node CREATED="1480776096665" ID="ID_1492275941" MODIFIED="1539382659115" TEXT="das hei&#xdf;t....">
 <richcontent TYPE="NOTE"><html>
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@@ -18301,7 +18377,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="info"/>
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 <node CREATED="1480776313813" ID="ID_1507386991" MODIFIED="1518487921082" TEXT="Vorteil: einfache Verh&#xe4;ltnisse in der Widget-Impl"/>
@@ -18320,7 +18397,7 @@
 </node>
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-<node CREATED="1480778115091" ID="ID_1948130012" MODIFIED="1518487921082" TEXT="das hei&#xdf;t...">
+<node CREATED="1480778115091" ID="ID_1948130012" MODIFIED="1539382659144" TEXT="das hei&#xdf;t...">
 <richcontent TYPE="NOTE"><html>
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@@ -18348,7 +18425,8 @@
       typischerweise wird es das in einem Populationsdiff sofort als N&#228;chstes machen.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="info"/>
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 <node CREATED="1480778348652" ID="ID_1249761108" MODIFIED="1518487921082" TEXT="Vorteil: Diff-Erzeugung und Aufspielen l&#xe4;uft nach Schema-F"/>
@@ -18370,7 +18448,7 @@
 <node CREATED="1480778490545" ID="ID_1228109442" MODIFIED="1518487921082" TEXT="darauf hoffen, da&#xdf; das Diff immer sauber kommt"/>
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-<node CREATED="1480778532907" ID="ID_1167492250" MODIFIED="1518487921082">
+<node CREATED="1480778532907" ID="ID_1167492250" MODIFIED="1539382659162">
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@@ -18390,7 +18468,8 @@
       <i>&quot;was kann denn schon passieren??&quot;</i>
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -18408,7 +18487,7 @@
 </html></richcontent>
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-<node CREATED="1480778689191" ID="ID_45333997" MODIFIED="1518487921082" TEXT="Pflanzt sich auf die Nutzer fort">
+<node CREATED="1480778689191" ID="ID_45333997" MODIFIED="1539382659175" TEXT="Pflanzt sich auf die Nutzer fort">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18429,9 +18508,10 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480778768988" ID="ID_1385067618" MODIFIED="1518487921082" TEXT="und das alles nur f&#xfc;r....">
+<node CREATED="1480778768988" ID="ID_1385067618" MODIFIED="1539382659180" TEXT="und das alles nur f&#xfc;r....">
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@@ -18441,7 +18521,8 @@
       einen Fall, der <i>praktisch nie</i>&#160;auftritt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -18450,7 +18531,7 @@
 </node>
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 <node CREATED="1480780057079" ID="ID_481017202" MODIFIED="1518487921082" TEXT="Analyse">
-<node CREATED="1480780061327" ID="ID_628488180" MODIFIED="1518487921082" TEXT="zwei F&#xe4;lle sind sehr &#xe4;hnlich">
+<node CREATED="1480780061327" ID="ID_628488180" MODIFIED="1539382659192" TEXT="zwei F&#xe4;lle sind sehr &#xe4;hnlich">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18468,12 +18549,13 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1480780163369" ID="ID_851065784" MODIFIED="1518487921082" TEXT="wenig Zusatzaufwand"/>
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 </node>
-<node CREATED="1480780140741" ID="ID_1754958261" MODIFIED="1518487921082" TEXT="und ein dritter ist wirklich wasserdicht">
+<node CREATED="1480780140741" ID="ID_1754958261" MODIFIED="1539382659205" TEXT="und ein dritter ist wirklich wasserdicht">
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@@ -18486,9 +18568,10 @@
       und auch &#252;ber ihre APIs dem Nutzer diese Unterscheidnung mit aufzwingen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1480780253397" ID="ID_1966427410" MODIFIED="1518487921082" TEXT="zum Preis von deutlich Mehraufwand"/>
-<node CREATED="1480780260508" ID="ID_1565963038" MODIFIED="1518487921082" TEXT="plus einer korrodierenden Wirkung">
+<node CREATED="1480780260508" ID="ID_1565963038" MODIFIED="1539382659215" TEXT="plus einer korrodierenden Wirkung">
 <richcontent TYPE="NOTE"><html>
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@@ -18513,13 +18596,14 @@
       heimlich in den &quot;wird schon nix passieren&quot; Fall zu geraten.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1480780498437" ID="ID_1806301944" MODIFIED="1518487921082" TEXT="nur die Ctor-L&#xf6;sung ist geradlinig">
+<node CREATED="1480780498437" ID="ID_1806301944" MODIFIED="1539382659226" TEXT="nur die Ctor-L&#xf6;sung ist geradlinig">
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@@ -18535,9 +18619,10 @@
       Es ist keine weitere Argumentation notwendig.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1480780538975" ID="ID_1139883143" MODIFIED="1518487921082" TEXT="nur die &quot;pa&#xdf;t schon&quot;-L&#xf6;sung ist vern&#xfc;nftig">
+<node CREATED="1480780538975" ID="ID_1139883143" MODIFIED="1539382659232" TEXT="nur die &quot;pa&#xdf;t schon&quot;-L&#xf6;sung ist vern&#xfc;nftig">
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   <head>
     
@@ -18556,7 +18641,8 @@
       &quot;fokussiere Dich&quot;
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -18575,7 +18661,7 @@
 </node>
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-<node CREATED="1480780835319" ID="ID_1263364267" MODIFIED="1518487921082">
+<node CREATED="1480780835319" ID="ID_1263364267" MODIFIED="1539382659247">
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@@ -18598,12 +18684,13 @@
       <i>wenn</i>&#160;ich mich &#252;berhaupt entscheiden konnte...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
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-<node COLOR="#338800" CREATED="1480780930115" HGAP="5" ID="ID_1156407347" MODIFIED="1518487921082" TEXT="L&#xf6;sung: per Konstruktor festlegen" VSHIFT="6">
+<node COLOR="#338800" CREATED="1480780930115" HGAP="5" ID="ID_1156407347" MODIFIED="1539382659254" TEXT="L&#xf6;sung: per Konstruktor festlegen" VSHIFT="6">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18627,7 +18714,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
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@@ -18681,7 +18769,7 @@
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 </node>
-<node CREATED="1480741425668" ID="ID_826648354" MODIFIED="1518487921083" TEXT="Labels werden als eigenes Tangible MarkerWidget implementiert">
+<node CREATED="1480741425668" ID="ID_826648354" MODIFIED="1539382659317" TEXT="Labels werden als eigenes Tangible MarkerWidget implementiert">
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   <head>
     
@@ -18691,7 +18779,8 @@
       ...sie verwenden dann ein LabelWidget zur Darstellung
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -18712,7 +18801,7 @@
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+<node CREATED="1479434780105" ID="ID_239720378" MODIFIED="1539382659341" TEXT="apperances">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18728,7 +18817,8 @@
       Verwende das als Leitgedanke, um das Layout zu entwickeln
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
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@@ -19321,7 +19411,7 @@
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400377118" ID="ID_1072134705" MODIFIED="1533401017012" TEXT="#211 handling pattern for dispatch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400377118" ID="ID_1072134705" MODIFIED="1539388435770" TEXT="#211 handling pattern for dispatch">
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@@ -20179,9 +20269,31 @@
 </node>
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-<node CREATED="1539270491013" ID="ID_1387553695" MODIFIED="1539270707901" TEXT="Problem der korrekten Diff-Struktur">
+<node CREATED="1539270491013" ID="ID_1387553695" MODIFIED="1539388420694" TEXT="Problem der korrekten Diff-Struktur">
 <arrowlink COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_971172326" STARTARROW="None" STARTINCLINATION="-1999;120;"/>
 <icon BUILTIN="messagebox_warning"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539270491013" ID="ID_19523487" MODIFIED="1539388425584" TEXT="Diff-Fehler-Behandlung">
+<arrowlink COLOR="#d47366" DESTINATION="ID_946219609" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_1085344706" STARTARROW="Default" STARTINCLINATION="-1999;120;"/>
+<icon BUILTIN="flag-pink"/>
+<node CREATED="1539388486494" ID="ID_1071396667" MODIFIED="1539388491839" TEXT="was ist sinnvoll?">
+<icon BUILTIN="help"/>
+<node CREATED="1539388494261" ID="ID_586705343" MODIFIED="1539388506519" TEXT="Applikation runterfahren"/>
+<node CREATED="1539388507796" ID="ID_1481564093" MODIFIED="1539388542739" TEXT="Zweig neu populieren"/>
+<node CREATED="1539388543735" ID="ID_927207087" MODIFIED="1539388549418" TEXT="Element defekt markieren"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539388552973" ID="ID_559690288" MODIFIED="1539388560389" TEXT="TODO: eigenen Fehler-Handler einbauen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539388561357" ID="ID_148293105" MODIFIED="1539388599866" TEXT="im Moment wirkt der default-Fehlerhandler">
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1539388573371" ID="ID_163915101" MODIFIED="1539388602511" TEXT="im Dispatcher f&#xfc;r den Notification-Service">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1539388588153" ID="ID_215543967" MODIFIED="1539388605933" TEXT="und der f&#xe4;hrt die Applikation runter">
+<icon BUILTIN="stop-sign"/>
+</node>
+</node>
+</node>
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@@ -20383,7 +20495,7 @@
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-<node CREATED="1523019635739" ID="ID_883974404" MODIFIED="1523019732087" TEXT="Einzelfall-Wissen vorausgesetzt">
+<node CREATED="1523019635739" ID="ID_883974404" MODIFIED="1539382661120" TEXT="Einzelfall-Wissen vorausgesetzt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -20402,7 +20514,8 @@
       erfordert bereits Kenntnis der Innereien
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -27460,7 +27573,7 @@
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-<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1538939217527" TEXT="Core-Services" VSHIFT="2">
+<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1539382661255" TEXT="Core-Services" VSHIFT="2">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -27473,11 +27586,12 @@
       Implementierung der real-world-Variante fehlt!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
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-<node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1518487921090" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
+<node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1539382661273" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -27493,7 +27607,8 @@
       wie Session- und State-Managment, Commands etc.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -32779,7 +32894,7 @@
 </node>
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-<node CREATED="1535891065189" FOLDED="true" ID="ID_1233342893" MODIFIED="1538869221331" TEXT="Iterator-Monade">
+<node CREATED="1535891065189" FOLDED="true" ID="ID_1233342893" MODIFIED="1539382661581" TEXT="Iterator-Monade">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -32800,7 +32915,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="pencil"/>
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 <richcontent TYPE="NODE"><html>
@@ -35173,7 +35289,7 @@
 <node CREATED="1539134848420" ID="ID_4911843" MODIFIED="1539134870669" TEXT="ein selbstbez&#xfc;glicher substanzloser Strukturkern"/>
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-<node CREATED="1539270491013" ID="ID_1435731309" MODIFIED="1539270607451" TEXT="Problem der korrekten Diff-Struktur">
+<node CREATED="1539270491013" ID="ID_1435731309" MODIFIED="1539388289807" TEXT="Problem der korrekten Diff-Struktur">
 <arrowlink COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="590;-127;" ID="Arrow_ID_308349501" STARTARROW="None" STARTINCLINATION="915;0;"/>
 <icon BUILTIN="messagebox_warning"/>
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@@ -38173,7 +38289,7 @@
 <icon BUILTIN="flag-yellow"/>
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-<node CREATED="1534002113086" ID="ID_1894075831" MODIFIED="1534002172804" TEXT="Audio und Video werden eigens unterschieden">
+<node CREATED="1534002113086" ID="ID_1894075831" MODIFIED="1539382661794" TEXT="Audio und Video werden eigens unterschieden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -38189,14 +38305,15 @@
       Ganz prominent fehlt hier also z.B: MIDI
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1534002180893" ID="ID_1074039128" MODIFIED="1534002196087" TEXT="daf&#xfc;r erscheint die Unterscheidung STRUCT vs. META schwammig"/>
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 <icon BUILTIN="flag-yellow"/>
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-<node CREATED="1534002225888" ID="ID_138566211" MODIFIED="1534002272126" TEXT="smart-Ptr als Handle nicht immer sinnvoll">
+<node CREATED="1534002225888" ID="ID_138566211" MODIFIED="1539382661814" TEXT="smart-Ptr als Handle nicht immer sinnvoll">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -38209,7 +38326,8 @@
       die Aufgrund von Klassifikationen automatisch bereits existieren
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1534024950739" ID="ID_1395279965" MODIFIED="1534024969582" TEXT="Races und m&#xf6;gliche Kollisionen &#xfc;berall">
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@@ -38391,7 +38509,7 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node CREATED="1539270417847" ID="ID_1555798999" MODIFIED="1539270871248" TEXT="korrekte Diff-Struktur">
+<node CREATED="1539270417847" ID="ID_1555798999" MODIFIED="1539388406968" TEXT="korrekte Diff-Struktur">
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@@ -38399,7 +38517,34 @@
 <node CREATED="1539270427702" ID="ID_1895500225" MODIFIED="1539270456541" TEXT="der Diff mu&#xdf; gewisse Regeln einhalten"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539270457106" ID="ID_1865797145" MODIFIED="1539270472721" TEXT="diese sind implizit und lokal">
 <icon BUILTIN="clanbomber"/>
+<node CREATED="1539382866228" ID="ID_961794575" MODIFIED="1539382869103" TEXT="Timeline">
+<node CREATED="1539386837229" ID="ID_563098407" MODIFIED="1539386844370" TEXT="sofort bei Population...">
+<icon BUILTIN="yes"/>
+<node CREATED="1539382950953" ID="ID_150037135" MODIFIED="1539382956732" TEXT="ID + Record"/>
+<node CREATED="1539382957680" ID="ID_1525067830" MODIFIED="1539383019395" TEXT="Attribut ATTR_fork -&gt; ID + Record"/>
 </node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1539388046730" ID="ID_1028444200" MODIFIED="1539388052926" TEXT="Entscheidung: besser so">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node CREATED="1539388094636" ID="ID_545613641" MODIFIED="1539388102878" TEXT="Alternative w&#xe4;re...">
+<node CREATED="1539388104018" ID="ID_1338813705" MODIFIED="1539388119964" TEXT="erst mal BOTTOM- Track-ID verwenden"/>
+<node CREATED="1539388120696" ID="ID_532223861" MODIFIED="1539388126619" TEXT="dann Track-Attibut zuweisen"/>
+<node CREATED="1539388127375" ID="ID_91044288" MODIFIED="1539388138297" TEXT="ggfs schon bestehende Objekte werkegeln"/>
+<node CREATED="1539388139030" ID="ID_1167639326" MODIFIED="1539388148489" TEXT="w&#xfc;rde funkionieren, aber...">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+<node CREATED="1539388158555" ID="ID_1745880313" MODIFIED="1539388465977" TEXT="besser geleich Exception werfen">
+<arrowlink COLOR="#ea3f19" DESTINATION="ID_946219609" ENDARROW="Default" ENDINCLINATION="305;-104;" ID="Arrow_ID_22622466" STARTARROW="None" STARTINCLINATION="-367;13;"/>
+</node>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1539270417847" ID="ID_946219609" MODIFIED="1539388465978" TEXT="Reaktion auf Diff-Fehler">
+<linktarget COLOR="#d47366" DESTINATION="ID_946219609" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_1085344706" SOURCE="ID_19523487" STARTARROW="Default" STARTINCLINATION="-1999;120;"/>
+<linktarget COLOR="#ea3f19" DESTINATION="ID_946219609" ENDARROW="Default" ENDINCLINATION="305;-104;" ID="Arrow_ID_22622466" SOURCE="ID_1745880313" STARTARROW="None" STARTINCLINATION="-367;13;"/>
+<icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
 </node>
@@ -38410,7 +38555,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400707072" ID="ID_1192893155" MODIFIED="1533401017012" TEXT="#211 handling pattern for dispatch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400707072" ID="ID_1192893155" MODIFIED="1539388435770" TEXT="#211 handling pattern for dispatch">
 <linktarget COLOR="#ca91c2" DESTINATION="ID_1192893155" ENDARROW="Default" ENDINCLINATION="1415;0;" ID="Arrow_ID_207842771" SOURCE="ID_1072134705" STARTARROW="None" STARTINCLINATION="2581;0;"/>
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@@ -38904,7 +39049,7 @@
 </node>
 </node>
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-<node CREATED="1538693436099" MODIFIED="1538693436099" TEXT="GTK_DEBUG=interactive target/lumiera"/>
+<node CREATED="1538693436099" ID="ID_1197910975" MODIFIED="1538693436099" TEXT="GTK_DEBUG=interactive target/lumiera"/>
 </node>
 <node CREATED="1538693451665" ID="ID_599439426" MODIFIED="1538693472219" TEXT="seit GTK+ 3.14 in der Standard-Distro">
 <icon BUILTIN="info"/>
@@ -39038,7 +39183,7 @@
 <node CREATED="1535629434440" ID="ID_384811116" MODIFIED="1535630246025" TEXT="bool">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
-<node CREATED="1535629385583" ID="ID_147722143" MODIFIED="1535630246025" TEXT="nur wenn es zus&#xe4;tzlichen Platz gibt">
+<node CREATED="1535629385583" ID="ID_147722143" MODIFIED="1539382662202" TEXT="nur wenn es zus&#xe4;tzlichen Platz gibt">
 <richcontent TYPE="NOTE"><html>
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@@ -39051,7 +39196,8 @@
       sofern das Widget mit entsprechendem Modus eingef&#252;gt wurde
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1535629439847" ID="ID_1925784750" MODIFIED="1535630246025" TEXT="Widget dehnt sich aus, um verf&#xfc;gbaren Platz einzunehmen">
 <icon BUILTIN="info"/>
@@ -39084,7 +39230,7 @@
 <node CREATED="1537577874195" ID="ID_385552696" MODIFIED="1537577883741" TEXT="style-context zum Widget beziehen"/>
 <node CREATED="1537577885042" ID="ID_9820896" MODIFIED="1537577900187" TEXT="diesem Context die spezielle Klasse hinzuf&#xfc;gen"/>
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-<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1538609593918" TEXT="geht einfach per GTKmm">
+<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1539382662289" TEXT="geht einfach per GTKmm">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39097,7 +39243,8 @@
       context-&gt;add_class(&quot;ohMy&quot;);
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 <node CREATED="1537577929540" ID="ID_644837001" MODIFIED="1538609519542" TEXT="fr&#xfc;her ging das nur direkt in C">
 <icon BUILTIN="ksmiletris"/>
@@ -39176,7 +39323,7 @@
 <node CREATED="1535633447375" ID="ID_1390203707" LINK="https://developer.gnome.org/gtkmm/3.22/classGtk_1_1Widget.html#ad65bedf64acfd0401abbe489312fba8e" MODIFIED="1535633492092" TEXT="Widget *  Gtk::Widget::get_ancestor(GType widget_type)"/>
 </node>
 <node CREATED="1535633140424" ID="ID_293762905" MODIFIED="1535633144596" TEXT="WidgetPath">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535633147295" ID="ID_14373153" MODIFIED="1535633217669" TEXT="Konzept ist mir nicht klar">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535633147295" ID="ID_14373153" MODIFIED="1539382662466" TEXT="Konzept ist mir nicht klar">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39192,7 +39339,8 @@
       oder ist es eine Vererbungs-Hierarchie, wie sie f&#252;r das CSS-Styling ben&#246;tigt wird?
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1535633221189" ID="ID_623946936" MODIFIED="1535633238637" TEXT="beachte: hier werden Typen (GType) gespeichert">
@@ -39213,7 +39361,7 @@
 </node>
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 </node>
-<node CREATED="1477523714526" ID="ID_654535915" MODIFIED="1534510412708" TEXT="Application verwenden">
+<node CREATED="1477523714526" ID="ID_654535915" MODIFIED="1539382662502" TEXT="Application verwenden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39237,7 +39385,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#627292" DESTINATION="ID_185528211" ENDARROW="Default" ENDINCLINATION="58;-164;" ID="Arrow_ID_390519319" STARTARROW="None" STARTINCLINATION="135;0;"/>
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@@ -39288,7 +39437,7 @@
 <node CREATED="1495223436241" ID="ID_1015366549" MODIFIED="1518487921099" TEXT="Application::run">
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-<node CREATED="1495223513438" ID="ID_1178606368" MODIFIED="1518487921099" TEXT="allerdings im activate-Callback">
+<node CREATED="1495223513438" ID="ID_1178606368" MODIFIED="1539382662561" TEXT="allerdings im activate-Callback">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39307,7 +39456,8 @@
       Alles in ein Framework zwingen. Alternativlos, capisce?
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
@@ -39332,7 +39482,7 @@
 <node CREATED="1533307417845" ID="ID_1665005953" MODIFIED="1533307423040" TEXT="Gio::Application"/>
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-<node CREATED="1533307886653" ID="ID_322984790" MODIFIED="1533307918597" TEXT="wird auch von Gtkmm so erhalten">
+<node CREATED="1533307886653" ID="ID_322984790" MODIFIED="1539382662617" TEXT="wird auch von Gtkmm so erhalten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39345,7 +39495,8 @@
       welche ggfs C++ - Exceptions f&#228;ngt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1533307599332" ID="ID_1228966939" MODIFIED="1533307626966" TEXT="aufgerufen von g_application_run">
 <arrowlink DESTINATION="ID_1602611708" ENDARROW="Default" ENDINCLINATION="262;0;" ID="Arrow_ID_1688106140" STARTARROW="None" STARTINCLINATION="-50;95;"/>
@@ -39358,7 +39509,7 @@
 <node CREATED="1533309088679" ID="ID_603142056" MODIFIED="1533309096553" TEXT="um ein Fenster nach start darzustellen"/>
 <node CREATED="1533309142479" ID="ID_1556321232" MODIFIED="1533309146650" TEXT="Gtk::Application::run(Window&amp;)"/>
 </node>
-<node CREATED="1533311444004" ID="ID_1806268533" MODIFIED="1533311614570" TEXT="notwendig weil....">
+<node CREATED="1533311444004" ID="ID_1806268533" MODIFIED="1539382662644" TEXT="notwendig weil....">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39377,11 +39528,12 @@
       <i>Nur</i>&#160;das ist der Grund. Es <i>geht gar nicht</i>&#160;um die Event-Loop
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#949fb4" DESTINATION="ID_1806268533" ENDARROW="Default" ENDINCLINATION="-1845;-608;" ID="Arrow_ID_1146394851" SOURCE="ID_1211339520" STARTARROW="None" STARTINCLINATION="-474;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node COLOR="#435e98" CREATED="1533309280940" ID="ID_1482488845" MODIFIED="1533309401924" TEXT="Stand 8/2018 keine anderen Treffer">
+<node COLOR="#435e98" CREATED="1533309280940" ID="ID_1482488845" MODIFIED="1539382662652" TEXT="Stand 8/2018 keine anderen Treffer">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39402,11 +39554,12 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1533309516556" ID="ID_459213298" MODIFIED="1533309561611">
+<node CREATED="1533309516556" ID="ID_459213298" MODIFIED="1539382662659">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -39434,7 +39587,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
@@ -39500,7 +39654,7 @@
 <node CREATED="1532796724776" ID="ID_685469322" MODIFIED="1532796729971" TEXT="bleibt weiterhin bestehen"/>
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-<node CREATED="1533305546669" ID="ID_717378410" MODIFIED="1533305616608" TEXT="gtk_init_check">
+<node CREATED="1533305546669" ID="ID_717378410" MODIFIED="1539382662738" TEXT="gtk_init_check">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39555,7 +39709,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="info"/>
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 <node CREATED="1533305895966" ID="ID_1828704033" MODIFIED="1533305900774" TEXT="init gettext"/>
@@ -39569,7 +39724,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1532795594468" ID="ID_681479502" MODIFIED="1533608414142" TEXT="Main::init_gtkmm_internals">
+<node CREATED="1532795594468" ID="ID_681479502" MODIFIED="1539382662806" TEXT="Main::init_gtkmm_internals">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39636,7 +39791,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#679cc6" DESTINATION="ID_681479502" ENDARROW="Default" ENDINCLINATION="-182;-16;" ID="Arrow_ID_1451320473" SOURCE="ID_1106606369" STARTARROW="None" STARTINCLINATION="273;0;"/>
 <icon BUILTIN="info"/>
 <node CREATED="1532794577245" ID="ID_1061673956" MODIFIED="1532794580305" TEXT="was macht das?">
@@ -39696,7 +39852,7 @@
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 <node CREATED="1495225006920" ID="ID_1631847350" MODIFIED="1518487921099" TEXT="Application ist generischer"/>
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-<node CREATED="1533308053493" ID="ID_281791270" MODIFIED="1533308091691" TEXT="Gio::Application ruft g_application_run">
+<node CREATED="1533308053493" ID="ID_281791270" MODIFIED="1539382662943" TEXT="Gio::Application ruft g_application_run">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39709,9 +39865,10 @@
       aber macht in etwa die gleichen Operationen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1495225050138" ID="ID_1077152710" MODIFIED="1518487921099" TEXT="gtk_main beruht heute auf Gio">
+<node CREATED="1495225050138" ID="ID_1077152710" MODIFIED="1539382662951" TEXT="gtk_main beruht heute auf Gio">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39730,7 +39887,8 @@
       Gtk-Main verwendet inzwischen den gleichen Mechanismus
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -39743,7 +39901,7 @@
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1501848672921" ID="ID_1641235315" MODIFIED="1518487921099" TEXT="SigC++ nicht Threadsafe">
 <icon BUILTIN="clanbomber"/>
 <node CREATED="1501848716179" ID="ID_969916851" MODIFIED="1518487921099" TEXT="alle Signals + Slots nur im GUI-Thread"/>
-<node CREATED="1501848914377" ID="ID_1614034013" MODIFIED="1518487921099" TEXT="Vorsicht: Desktuktoren">
+<node CREATED="1501848914377" ID="ID_1614034013" MODIFIED="1539382662980" TEXT="Vorsicht: Desktuktoren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39765,7 +39923,8 @@
       Das ist eine subtile Falle.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1501848728354" ID="ID_1420494100" MODIFIED="1518487921099">
@@ -39784,7 +39943,7 @@
 </node>
 <node CREATED="1501848774883" ID="ID_1801418640" MODIFIED="1518487921099" TEXT="Glib::Dispatcher">
 <icon BUILTIN="idea"/>
-<node CREATED="1501848781850" ID="ID_356349390" MODIFIED="1518487921099">
+<node CREATED="1501848781850" ID="ID_356349390" MODIFIED="1539382662995">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -39807,7 +39966,8 @@
       alles das nicht aus dem GUI-Thread heraus geschieht
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1501848836523" ID="ID_649355856" MODIFIED="1518487921099" TEXT="Dispatcher im GUI-Thread erzeugen">
@@ -39863,7 +40023,7 @@
 <node CREATED="1535630710781" ID="ID_194514515" MODIFIED="1535630724687" TEXT="Label-Text als ctor-Param"/>
 </node>
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-<node CREATED="1535557122205" ID="ID_523553375" MODIFIED="1535631130732" TEXT="resize_toplevel (=true by default)">
+<node CREATED="1535557122205" ID="ID_523553375" MODIFIED="1539382663095" TEXT="resize_toplevel (=true by default)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39873,9 +40033,10 @@
       ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1535631341839" TEXT="expanded (=false by default)">
+<node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1539382663102" TEXT="expanded (=false by default)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39885,12 +40046,13 @@
       ob eingeklappt oder ausgeklappt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1535631368701" ID="ID_1441730618" MODIFIED="1535631388301" TEXT="platziert Kind-Widget as-is">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1535631390194" ID="ID_356344952" MODIFIED="1535631402732" TEXT="in dessen nat&#xfc;rlicher Gr&#xf6;&#xdf;e"/>
-<node CREATED="1535631403576" ID="ID_518089172" MODIFIED="1535631474193" TEXT="verh&#xe4;lt sich anders als Frame">
+<node CREATED="1535631403576" ID="ID_518089172" MODIFIED="1539382663118" TEXT="verh&#xe4;lt sich anders als Frame">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39903,7 +40065,8 @@
       was dazu f&#252;hrt, da&#223; das Kind stets allen verf&#252;gbaren Platz nimmt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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@@ -39975,7 +40138,7 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1385929770" ENDARROW="Default" ENDINCLINATION="1055;0;" ID="Arrow_ID_1314305180" SOURCE="ID_426069181" STARTARROW="None" STARTINCLINATION="1055;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1537576124396" TEXT="custom style properties">
+<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1539382663270" TEXT="custom style properties">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39988,7 +40151,8 @@
       Siehe Beschreibung im Beispiel/Tutorial
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_334736261" ENDARROW="Default" ENDINCLINATION="228;-492;" ID="Arrow_ID_84377619" SOURCE="ID_111059124" STARTARROW="None" STARTINCLINATION="930;-42;"/>
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@@ -40017,7 +40181,7 @@
 <icon BUILTIN="yes"/>
 <node CREATED="1476468292804" ID="ID_283291482" MODIFIED="1518487921100" TEXT="overlapping widgets"/>
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+<node CREATED="1476468292805" ID="ID_1075320324" MODIFIED="1539382663386" TEXT="partially covered widgets">
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@@ -40027,9 +40191,10 @@
       ....how does the event dispatching deal with partially covered widgets
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1476468292805" ID="ID_1670607748" MODIFIED="1518487921100" TEXT="tabbing / focus order">
+<node CREATED="1476468292805" ID="ID_1670607748" MODIFIED="1539382663393" TEXT="tabbing / focus order">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40039,7 +40204,8 @@
       ...for embedded widgets
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -40072,7 +40238,7 @@
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 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1477788749289" ID="ID_1466181075" MODIFIED="1518487921100" TEXT="returns false">
+<node CREATED="1477788749289" ID="ID_1466181075" MODIFIED="1539382663454" TEXT="returns false">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40085,7 +40251,8 @@
       i.e. the enclosing parent widget also gets a chance to redraw itself
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -40106,7 +40273,7 @@
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+<node CREATED="1477841600713" ID="ID_1319450558" LINK="http://stackoverflow.com/questions/40325668/scrollable-drawing-in-gtklayout" MODIFIED="1539382663481" TEXT="Question: can the framework adjust for us">
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@@ -40116,13 +40283,14 @@
       asked on stackoverflow...
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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+<node CREATED="1477841753180" ID="ID_501431504" MODIFIED="1539382663505" TEXT="max(value) + viewport-size == canvas size">
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   <head>
     
@@ -40135,7 +40303,8 @@
       by printing values from the on_draw() callback
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -40271,7 +40440,7 @@
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-<node CREATED="1479424603959" ID="ID_194428894" MODIFIED="1518487921101" TEXT="works on second attempt">
+<node CREATED="1479424603959" ID="ID_194428894" MODIFIED="1539382663627" TEXT="works on second attempt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40299,7 +40468,8 @@
       Kind-Widgets noch gar nicht festgelegt war (denn das passiert erst beim draw).
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -40337,7 +40507,7 @@
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+<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1539382663672" TEXT="Beispiel im GTKmm-Guide (custom widget)">
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@@ -40353,7 +40523,8 @@
       und auch ein Signal f&#252;r Parse-Fehler anschlie&#223;t
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -40380,7 +40551,7 @@
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+<node CREATED="1504220061178" ID="ID_474843943" MODIFIED="1539382663714" TEXT="&quot;Gravity&quot; beachten">
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@@ -40398,7 +40569,8 @@
       Beachte: der Text-Cursor (Marker &quot;insert&quot;) hat right gravity
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -40473,7 +40645,7 @@
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+<node CREATED="1534512387109" ID="ID_173562614" MODIFIED="1539382663869" TEXT="Adds docking capability to its child widget">
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@@ -40495,7 +40667,8 @@
       The grip is implemented as a GdlDockItemGrip
     </p>
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-</html></richcontent>
+</html>
+</richcontent>
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     </p>
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-<node CREATED="1512179063250" ID="ID_933791979" MODIFIED="1518487921102" TEXT="w&#xe4;hrend der Instantiierung....">
+<node CREATED="1512179063250" ID="ID_933791979" MODIFIED="1539382663951" TEXT="w&#xe4;hrend der Instantiierung....">
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@@ -40586,9 +40759,10 @@
       kann eines der Templates im Zyklus vorr&#252;bergehend als &quot;incomplete&quot; gelten.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1512179134400" ID="ID_1738202679" MODIFIED="1518487921102" TEXT="....kann die Metafunktion scheitern">
+<node CREATED="1512179134400" ID="ID_1738202679" MODIFIED="1539382663964" TEXT="....kann die Metafunktion scheitern">
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@@ -40610,7 +40784,8 @@
       Konsequenz: man w&#228;hlt dann z.B. eine subtil falsche Spezialisierung.
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -40636,7 +40811,7 @@
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+<node CREATED="1525191859371" ID="ID_1136158199" MODIFIED="1539382664003" TEXT="tritt auf in statischem init-Kontext">
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@@ -40664,13 +40839,14 @@
       selber aus einem statischen Initialisierungs-Kontext heraus erfolgt.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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 </node>
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-<node CREATED="1525192237928" ID="ID_1523643615" MODIFIED="1525192311996" TEXT="Demo-Beispiel: g++ --std=gnu++14 blei.cpp -o blei">
+<node CREATED="1525192237928" ID="ID_1523643615" MODIFIED="1539382664026" TEXT="Demo-Beispiel: g++ --std=gnu++14 blei.cpp -o blei">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40866,7 +41042,8 @@
       &#160;&#160;}
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41108,7 +41285,7 @@
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+<node CREATED="1491099088362" ID="ID_1507484869" MODIFIED="1539382664079" TEXT="Template-Parameter in Klassennamen">
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   <head>
     
@@ -41133,9 +41310,10 @@
       Query&lt;RES&gt;::resolveBy
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-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1491099311253" ID="ID_307124479" MODIFIED="1518487921102">
+<node CREATED="1491099311253" ID="ID_307124479" MODIFIED="1539382664088">
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   <head>
     
@@ -41170,14 +41348,15 @@
       sonst kommt Doxygen durcheinander
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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+<node CREATED="1491098427785" ID="ID_719835617" MODIFIED="1539382664115" TEXT="Beispiel: alle Unit-Tests">
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   <head>
     
@@ -41199,7 +41378,8 @@
       wird hier kein Link erzeugt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41215,7 +41395,7 @@
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+<node CREATED="1504201192870" ID="ID_823572488" MODIFIED="1539382664164" TEXT="Dokument-Gr&#xf6;&#xdf;e anscheinend egal">
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@@ -41231,7 +41411,8 @@
       Die Icon-Gr&#246;&#223;en ergeben sich aus den Boxes auf 'plate'
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41246,7 +41427,7 @@
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+<node CREATED="1437693693617" ID="ID_955932218" LINK="https://wiki.debian.org/Sound" MODIFIED="1539382664208" TEXT="siehe die Debian-&#xdc;bersichtsseite">
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@@ -41256,7 +41437,8 @@
       ...im Besonderen die guten Diagramme f&#252;r Pulse, ALSA und Jack
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -41381,7 +41563,7 @@
   </body>
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+<node CREATED="1439593646645" ID="ID_917747701" MODIFIED="1539382664543">
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@@ -41404,10 +41586,11 @@
       &quot;-Wl,-rpath-link=target/modules&quot;
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-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1439176912636" ID="ID_584884488" MODIFIED="1518487921103" TEXT="failed tests">
+<node CREATED="1439176912636" ID="ID_584884488" MODIFIED="1539382664551" TEXT="failed tests">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41417,14 +41600,15 @@
       laufen wieder alle
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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+<node CREATED="1439566274091" ID="ID_1628790738" MODIFIED="1539382664573" TEXT="ohne ulimit gehts">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41434,7 +41618,8 @@
       test.sh Zeile 138
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41478,7 +41663,7 @@
   </body>
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+<node CREATED="1439592774041" ID="ID_1603492676" MODIFIED="1539382664609" TEXT="ist reine CPU-Zeit">
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   <head>
     
@@ -41488,12 +41673,13 @@
       und wir verbringen unsere Zeit mit contention
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-</html></richcontent>
+</html>
+</richcontent>
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+<node CREATED="1439176927657" ID="ID_453561058" MODIFIED="1539382664617" TEXT="EntryID">
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   <head>
     
@@ -41503,7 +41689,8 @@
       ist klar, hab ich gebrochen
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -41519,7 +41706,7 @@
   </body>
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-<node CREATED="1439609055443" ID="ID_325526736" MODIFIED="1518487921103" TEXT="Problem hat sich versch&#xe4;rft">
+<node CREATED="1439609055443" ID="ID_325526736" MODIFIED="1539382664641" TEXT="Problem hat sich versch&#xe4;rft">
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   <head>
     
@@ -41532,7 +41719,8 @@
       Vorher hatte ich erste Kollisionen nach 25000 Nummern
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-</html></richcontent>
+</html>
+</richcontent>
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@@ -41571,7 +41759,7 @@
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+<node CREATED="1439177141197" ID="ID_140380975" MODIFIED="1539382664664" TEXT="Segfault in GDB">
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@@ -41584,7 +41772,8 @@
       Aug 10 04:51:39 flaucher kernel: traps: test-suite[8249] trap int3 ip:7ffff7deb241 sp:7fffffffe5c8 error:0
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-</html></richcontent>
+</html>
+</richcontent>
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+<node CREATED="1439516495534" ID="ID_413946117" MODIFIED="1539382664713" TEXT="Bau-Abh&#xe4;ngigkeiten">
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@@ -41651,7 +41840,8 @@
       bison dejagnu flex gobjc libncurses5-dev libreadline-dev liblzma-dev libbabeltrace-dev libbabeltrace-ctf-dev python3-dev
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-</html></richcontent>
+</html>
+</richcontent>
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+<node CREATED="1439519171155" ID="ID_509605117" MODIFIED="1539382664728" TEXT="das scheint nicht ungew&#xf6;hnlich zu sein">
 <richcontent TYPE="NOTE"><html>
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@@ -41701,7 +41891,8 @@
       <b>au weia</b>&#160;LEUTE!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node BACKGROUND_COLOR="#f7f2b7" CREATED="1439521655505" ID="ID_746337758" MODIFIED="1518487921104" TEXT="funktioniert, kein Segfault mehr">
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@@ -41725,7 +41916,7 @@
 <icon BUILTIN="help"/>
 </node>
 </node>
-<node CREATED="1439655684119" ID="ID_1194655899" MODIFIED="1518487921104" TEXT="Warnungen">
+<node CREATED="1439655684119" ID="ID_1194655899" MODIFIED="1539382664772" TEXT="Warnungen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41741,10 +41932,11 @@
       und tats&#228;chlich: das <i>ist</i>&#160;daneben, GCC hat Recht!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1439644339480" ID="ID_239239923" MODIFIED="1518487921104" TEXT="Lumiera DEB">
+<node CREATED="1439644339480" ID="ID_239239923" MODIFIED="1539382664780" TEXT="Lumiera DEB">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41754,7 +41946,8 @@
       aktualisieren und neu bauen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1439644368572" ID="ID_106785551" MODIFIED="1518487921104" TEXT="Doku: Referenz-System">
@@ -41774,7 +41967,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1446509415481" ID="ID_180589749" MODIFIED="1518487921104" TEXT="Versionen hochsetzen">
+<node CREATED="1446509415481" ID="ID_180589749" MODIFIED="1539382664803" TEXT="Versionen hochsetzen">
 <richcontent TYPE="NOTE"><html>
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@@ -41784,7 +41977,8 @@
       w&#228;hle Kompatibilt&#228;t genau so, da&#223; Ubuntu-Trusty noch unterst&#252;tzt wird.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446509422423" ID="ID_1328716100" MODIFIED="1518487921104" TEXT="gtkmm-3.0 3.10">
 <icon BUILTIN="button_ok"/>
@@ -41818,7 +42012,7 @@
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 <icon BUILTIN="bell"/>
-<node CREATED="1447566892252" ID="ID_649638170" MODIFIED="1518487921104" TEXT="generische Compiler-Schalter zur Diagnose loggen">
+<node CREATED="1447566892252" ID="ID_649638170" MODIFIED="1539382664865" TEXT="generische Compiler-Schalter zur Diagnose loggen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41831,9 +42025,10 @@
       Ich meine also: zu Beginn vom Build sollte das Buildsystem einmal eine Infozeile ausgeben
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1447566892253" ID="ID_64485556" MODIFIED="1518487921104" TEXT="clean soll .sconf_temp und *.pyc mit wegr&#xe4;umen">
+<node CREATED="1447566892253" ID="ID_64485556" MODIFIED="1539382664874" TEXT="clean soll .sconf_temp und *.pyc mit wegr&#xe4;umen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41843,7 +42038,8 @@
       ...denn die st&#246;ren jeweils beim erzeugen eines Hotfix/Patch im Paketbau per dpkg --commit
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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@@ -41890,7 +42086,7 @@
 </node>
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 <icon BUILTIN="go"/>
-<node CREATED="1446480601381" ID="ID_1870415321" MODIFIED="1518487921104" TEXT="release prep: clean-up obsolete information">
+<node CREATED="1446480601381" ID="ID_1870415321" MODIFIED="1539382664919" TEXT="release prep: clean-up obsolete information">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41900,11 +42096,12 @@
       Doku durchk&#228;mmen nach M&#252;ll
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <font NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="full-1"/>
 <icon BUILTIN="button_ok"/>
-<node CREATED="1446482192807" ID="ID_852733328" MODIFIED="1518487921104" TEXT="Debian">
+<node CREATED="1446482192807" ID="ID_852733328" MODIFIED="1539382664928" TEXT="Debian">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41917,10 +42114,11 @@
       <font color="#d40222">WICHTIG</font>: keine vorgreifende Infor publizieren!!!!!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1446482445325" ID="ID_1134936512" MODIFIED="1518487921104" TEXT="Build-Tutorial">
+<node CREATED="1446482445325" ID="ID_1134936512" MODIFIED="1539382664936" TEXT="Build-Tutorial">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41936,7 +42134,8 @@
       insgesamt sorgf&#228;ltig durchlesen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446489425420" ID="ID_1155768637" MODIFIED="1518487921104" TEXT="building from source"/>
 <node CREATED="1446489431443" ID="ID_1672115205" MODIFIED="1518487921104" TEXT="building the debian way"/>
@@ -41946,7 +42145,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1446480725508" ID="ID_789754974" MODIFIED="1518487921104" TEXT="release prep: bump version number">
+<node CREATED="1446480725508" ID="ID_789754974" MODIFIED="1539382664963" TEXT="release prep: bump version number">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41956,7 +42155,8 @@
       knappe Kennzeichnung des Releases in den Kommentar
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="full-2"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446480787391" ID="ID_1824008353" MODIFIED="1518487921104" TEXT="admin/scons/Setup.py"/>
@@ -41964,7 +42164,7 @@
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-<node CREATED="1446481181543" ID="ID_1995398229" MODIFIED="1518487921104" TEXT="R&#xfc;ck-Merge vom Release-Zweig">
+<node CREATED="1446481181543" ID="ID_1995398229" MODIFIED="1539382664991" TEXT="R&#xfc;ck-Merge vom Release-Zweig">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41983,7 +42183,8 @@
       denn wir wollen keine DEB-Info im Master haben!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="full-3"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446481302159" ID="ID_1330024662" MODIFIED="1518487921104" TEXT="Release-Zweig">
@@ -41996,7 +42197,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1446480963028" ID="ID_83763074" MODIFIED="1518487921104" TEXT="Release-commit: Pre-release 0.pre.03">
+<node CREATED="1446480963028" ID="ID_83763074" MODIFIED="1539382665014" TEXT="Release-commit: Pre-release 0.pre.03">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42009,7 +42210,8 @@
       die unmittelbaren Release-Dokumente durchgehen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="full-4"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446481123991" ID="ID_1319204482" MODIFIED="1518487921104" TEXT="README"/>
@@ -42023,7 +42225,7 @@
 </node>
 <node CREATED="1446481129206" ID="ID_799927356" MODIFIED="1518487921104" TEXT="LICENSE"/>
 </node>
-<node CREATED="1446481516578" ID="ID_552450474" MODIFIED="1518487921104" TEXT="Release-Zweig: upgrade current release to 0.pre.03">
+<node CREATED="1446481516578" ID="ID_552450474" MODIFIED="1539382665083" TEXT="Release-Zweig: upgrade current release to 0.pre.03">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42036,7 +42238,8 @@
       Sollte konfliktfrei sein
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="full-5"/>
 <icon BUILTIN="button_ok"/>
 </node>
@@ -42059,7 +42262,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node CREATED="1446481713984" ID="ID_1112453089" MODIFIED="1518487921104" TEXT="ausliefern">
+<node CREATED="1446481713984" ID="ID_1112453089" MODIFIED="1539382665119" TEXT="ausliefern">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42069,7 +42272,8 @@
       ...das hei&#223;t bauen und hochladen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="full-7"/>
 <node CREATED="1447566826434" HGAP="0" ID="ID_808634666" MODIFIED="1518487921104" TEXT="Bugfix-Release 0.pre.03-2" VSHIFT="-1">
 <icon BUILTIN="idea"/>
@@ -42123,7 +42327,7 @@
 <node CREATED="1447971995582" ID="ID_1170070076" MODIFIED="1518487921105" TEXT="Doku-Registrierung scheitert">
 <icon BUILTIN="clanbomber"/>
 </node>
-<node CREATED="1447972005940" ID="ID_876035298" MODIFIED="1518487921105" TEXT="doc-base Definition">
+<node CREATED="1447972005940" ID="ID_876035298" MODIFIED="1539382665188" TEXT="doc-base Definition">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42136,9 +42340,10 @@
       unter Debian/Jessie wird das ignoriert
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1447972547396" ID="ID_1950291699" MODIFIED="1518487921105">
+<node CREATED="1447972547396" ID="ID_1950291699" MODIFIED="1539382665197">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -42164,7 +42369,8 @@
       Die Wahrscheinlichkeit, da&#223; <i>irgend jemand</i>&#160;Lumiera unter Ubuntu/Trusty <i>installieren </i>m&#246;chte, erscheint mir akademisch
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="bell"/>
 </node>
 </node>
@@ -42190,7 +42396,7 @@
 <node CREATED="1447978292199" ID="ID_1160042901" MODIFIED="1518487921105" TEXT="ein Problem mit std::hash - Spezialisierung">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1447983052852" ID="ID_1130315053" MODIFIED="1518487921105" TEXT="liegt nur an fehlendem #include &lt;utility&gt;">
+<node CREATED="1447983052852" ID="ID_1130315053" MODIFIED="1539382665225" TEXT="liegt nur an fehlendem #include &lt;utility&gt;">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42200,7 +42406,8 @@
       in lib/hash-standard.hpp
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1447990722939" ID="ID_1163368707" MODIFIED="1518487921105">
 <richcontent TYPE="NODE"><html>
@@ -42215,7 +42422,7 @@
 </html></richcontent>
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1447990760017" ID="ID_413820913" MODIFIED="1518487921105">
+<node CREATED="1447990760017" ID="ID_413820913" MODIFIED="1539382665240">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -42235,7 +42442,8 @@
       es gibt Probleme beim Linken mit den Boost-Libraries, die auf Ubuntu/wily mit gcc-5 gebaut sind.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="smily_bad"/>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#990000" CREATED="1447990802803" ID="ID_1667893677" MODIFIED="1518487921105" TEXT="ABBRUCH"/>
@@ -42243,7 +42451,7 @@
 <node CREATED="1446482059175" ID="ID_904094860" MODIFIED="1518487921105" TEXT="Mint/Rafaela (17.2.LTS) : x86_64">
 <icon BUILTIN="button_ok"/>
 </node>
-<node CREATED="1446482249336" ID="ID_1088469455" MODIFIED="1518487921105" TEXT="Web/Doku aktualisieren">
+<node CREATED="1446482249336" ID="ID_1088469455" MODIFIED="1539382665258" TEXT="Web/Doku aktualisieren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42253,7 +42461,8 @@
       Wichtig: hier nur was wirklich gebaut ist und funktioniert!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1446589479832" ID="ID_1851762530" MODIFIED="1518487921105" TEXT="alte Repos wegwerfen">
@@ -42277,7 +42486,7 @@
 <node CREATED="1439842359711" ID="ID_1982964862" MODIFIED="1518487921105" TEXT="Paket">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1439842379420" ID="ID_1336697213" MODIFIED="1518487921105" TEXT="gtk-Abh&#xe4;ngigkeiten"/>
-<node CREATED="1446486970358" ID="ID_1758732894" MODIFIED="1518487921105" TEXT="was ist mit libXV">
+<node CREATED="1446486970358" ID="ID_1758732894" MODIFIED="1539382665302" TEXT="was ist mit libXV">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42293,7 +42502,8 @@
       bestehen, aber irgendwann m&#252;ssen wir das schon glattziehen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1446505367113" ID="ID_1119934206" LINK="http://issues.lumiera.org/ticket/971" MODIFIED="1518487921105">
@@ -42331,7 +42541,7 @@
   </body>
 </html></richcontent>
 </node>
-<node CREATED="1447985552663" ID="ID_1932953869" MODIFIED="1518487921105" TEXT="Hack ist inzwischen obsolet">
+<node CREATED="1447985552663" ID="ID_1932953869" MODIFIED="1539382665348" TEXT="Hack ist inzwischen obsolet">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42341,7 +42551,8 @@
       seit gcc-4.8 ist kein static_assert mehr in der STDlib
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1447985591922" ID="ID_800130211" MODIFIED="1518487921105" TEXT="Frage: wie kann ich ein SFINAE-Br&#xfc;cke bauen"/>
 <node CREATED="1447985637132" ID="ID_1680970111" MODIFIED="1518487921105" TEXT="Problem: wir haben nur einen Typparameter"/>
@@ -42383,7 +42594,7 @@
 <icon BUILTIN="broken-line"/>
 <node CREATED="1521963965164" ID="ID_1027875371" MODIFIED="1522030106272" TEXT="multithreaded-Test scheitert">
 <node CREATED="1522025948980" ID="ID_295336770" MODIFIED="1522025952959" TEXT="3/2018">
-<node COLOR="#338800" CREATED="1521964015114" ID="ID_1116388701" MODIFIED="1525124215506" TEXT="CallQueue_test">
+<node COLOR="#338800" CREATED="1521964015114" ID="ID_1116388701" MODIFIED="1539382665420" TEXT="CallQueue_test">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42429,10 +42640,11 @@
       END
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522025982759" ID="ID_1830638050" MODIFIED="1522025987194" TEXT="reproduzierbar....">
-<node CREATED="1522025990246" ID="ID_261366619" MODIFIED="1522026014541" TEXT="Auf mehreren Terminals x-mal starten">
+<node CREATED="1522025990246" ID="ID_261366619" MODIFIED="1539382665435" TEXT="Auf mehreren Terminals x-mal starten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42442,11 +42654,12 @@
       for I in `seq 1 50`; do target/test-suite CallQueue_test; done
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1522026027993" ID="ID_25191931" MODIFIED="1522026034036" TEXT="Anhaltspunkte">
-<node CREATED="1522026034720" ID="ID_584589060" MODIFIED="1522026104830" TEXT="erstmals beobachtet unter starker System-Last">
+<node CREATED="1522026034720" ID="ID_584589060" MODIFIED="1539382665450" TEXT="erstmals beobachtet unter starker System-Last">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42462,7 +42675,8 @@
       und eine Doxygen-Seite im Browser geladen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node COLOR="#990000" CREATED="1521963972811" ID="ID_1942164320" MODIFIED="1522029864550" TEXT="hab ich da was mit dem ThreadWrapper kaputt gemacht?">
 <icon BUILTIN="stop-sign"/>
@@ -42483,7 +42697,7 @@
 <node CREATED="1522029908986" ID="ID_1350487644" MODIFIED="1522030029028" TEXT="Jupp. Dat warsz">
 <icon BUILTIN="idea"/>
 <node CREATED="1522029922592" ID="ID_301766693" MODIFIED="1522030021122" TEXT="Barriere eingebaut"/>
-<node CREATED="1522029928983" ID="ID_761637509" MODIFIED="1522030021122" TEXT="ist auch sinnvoll vom Testdesgin her">
+<node CREATED="1522029928983" ID="ID_761637509" MODIFIED="1539382665514" TEXT="ist auch sinnvoll vom Testdesgin her">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42493,7 +42707,8 @@
       weil sich die Threads gegenseitig ihre Counter inkrementieren.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1522029979544" ID="ID_1820534569" MODIFIED="1522030021122" TEXT="Stre&#xdf;test wiederholt, sogar mit 500 Thrads"/>
 <node COLOR="#338800" CREATED="1522029995205" ID="ID_556688250" MODIFIED="1522030021122" TEXT="jetzt reproduzierbar alles sauber">

From 202b1e4dbde0625f2e21a28289905e864f81cdc1 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 13 Oct 2018 03:47:31 +0200
Subject: [PATCH 150/178] Timeline: implement handling of INS verb to create
 new Timeline

decision: for now we will represent *every* Timeline present in the Session.
Later it would also possible to skip some representation; however we'd need
a way to store such presentation state such that we'd be able to get at this
persisted stat right at this point here, when processing the Diff.
---
 src/gui/interact/interaction-director.cpp | 25 ++++++++----
 src/gui/panel/timeline-panel.cpp          |  7 ++++
 src/gui/panel/timeline-panel.hpp          | 10 +++--
 src/gui/timeline/timeline-gui.cpp         | 17 ++++++++
 src/gui/timeline/timeline-gui.hpp         |  6 ++-
 src/include/ui-protocol.hpp               |  6 +++
 wiki/thinkPad.ichthyo.mm                  | 50 +++++++++++++++++------
 7 files changed, 94 insertions(+), 27 deletions(-)

diff --git a/src/gui/interact/interaction-director.cpp b/src/gui/interact/interaction-director.cpp
index bd2092e5e..d4dcff6ff 100644
--- a/src/gui/interact/interaction-director.cpp
+++ b/src/gui/interact/interaction-director.cpp
@@ -41,8 +41,9 @@
 #include "gui/workspace/workspace-window.hpp"
 #include "gui/ctrl/ui-state.hpp"
 #include "gui/setting/asset-controller.hpp"
-#include "gui/timeline/timeline-widget.hpp"
-#include "gui/timeline/timeline-controller.hpp"   /////////////////TODO still required?
+#include "gui/panel/timeline-panel.hpp"
+//#include "gui/timeline/timeline-widget.hpp"
+//#include "gui/timeline/timeline-controller.hpp"   /////////////////TODO still required?
 #include "include/ui-protocol.hpp"
 #include "proc/mobject/session/root.hpp"
 #include "proc/asset/sequence.hpp"                ///////////////////////////////////////////////////////////TICKET #1096 : avoid direct inclusion to reduce compile times
@@ -344,19 +345,25 @@ namespace interact {
     }
   }
   
-  /** @internal allocate a new TimelineWidget and attach it as child.
-   * @todo is it really necessary to make such strong assumptions
-   *       regarding the format of the diff spec provided for
-   *       "element construction"?
+  /**
+   * @internal allocate a new TimelineWidget and attach it as child.
+   * @remarks assuming the structure of the diff is adequate, we'll first create a proxy
+   *    to manage this timeline. Then we use some service to find a suitable location to house
+   *    a TimelineWidget. And finally we trigger creation of the widget, which in turn creates
+   *    a TimelineController attached to the UI-Bus
    */
   TimelineGui
   InteractionDirector::injectTimeline (GenNode const& spec)
   {
-    unimplemented ("allocate a TimelineWidget in some TimelinePanel and attach it's controller as child entity");
-    
     ID rootTrack = verifyDiffStructure_and_extract_RootTrack (spec);
     TimelineGui anchorProxy{spec.idi, rootTrack};
-    anchorProxy.buildTimelineWidget (this->uiBus_);  ///////////////////////////////////////////TODO really create it right here?
+    
+    globalCtx_.windowLoc_
+              .locatePanel()
+              .find_or_create<panel::TimelinePanel>()
+              .addTimeline (
+                  anchorProxy.buildTimelineWidget (this->uiBus_));
+    
     return anchorProxy;
   }
 
diff --git a/src/gui/panel/timeline-panel.cpp b/src/gui/panel/timeline-panel.cpp
index 462148208..97131c60d 100644
--- a/src/gui/panel/timeline-panel.cpp
+++ b/src/gui/panel/timeline-panel.cpp
@@ -149,6 +149,13 @@ namespace panel {
   
   
   
+  void
+  TimelinePanel::addTimeline (std::unique_ptr<timeline::TimelineWidget>&& widget)
+  {
+    UNIMPLEMENTED ("take ownership of the widget and place it into a new tab");
+  }
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1016 : WIP kill everything below....  
   void
   TimelinePanel::experiment_1()
   {
diff --git a/src/gui/panel/timeline-panel.hpp b/src/gui/panel/timeline-panel.hpp
index e93bdddcf..75e9e1b1e 100644
--- a/src/gui/panel/timeline-panel.hpp
+++ b/src/gui/panel/timeline-panel.hpp
@@ -44,16 +44,17 @@
 #define GUI_PANEL_TIMELINE_PANEL_H
 
 #include "gui/panel/panel.hpp"
+#include "gui/timeline/timeline-widget.hpp"
 
-//#include <memory>
+#include <memory>
 #include <vector>
 
 
 
 namespace gui  {
 namespace model{
-    class Sequence;
-  }
+  class Sequence;
+}
 namespace panel {
   
 //using std::shared_ptr;
@@ -134,8 +135,11 @@ namespace panel {
       static const char* getTitle();
       static const gchar* getStockID();
       
+      /////////////////////////////////////////////////////////////TODO WIP
+      void addTimeline (std::unique_ptr<timeline::TimelineWidget>&&);
       
     private:
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1016 : WIP kill everything below....  
       Gtk::Box twoParts_;
       Gtk::ButtonBox buttons_;
       Gtk::Button button_1_;
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index 5ea8576d4..b2295e862 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -38,6 +38,7 @@
 #include "gui/timeline/timeline-gui.hpp"
 #include "gui/timeline/timeline-widget.hpp"
 
+#include <utility>
 
 using lib::diff::TreeMutator;
 using std::make_unique;
@@ -56,6 +57,22 @@ namespace timeline {
     , rootTrackID_{trackID}
     { }
   
+  /**
+   * @remark basically the default, just defined here explicitly
+   *  to allow using TimelineGui without the need to include timeline-widget.hpp
+   */
+  TimelineGui::TimelineGui (TimelineGui const& r)
+    : WLink{r}, util::Cloneable{}
+    , timelineID_{r.timelineID_}
+    , rootTrackID_{r.rootTrackID_}
+    { }
+  
+  TimelineGui::TimelineGui (TimelineGui && rr)
+    : WLink{std::move (rr)}
+    , timelineID_{rr.timelineID_}
+    , rootTrackID_{rr.rootTrackID_}
+    { }
+  
   TimelineGui::~TimelineGui() { }
   
   
diff --git a/src/gui/timeline/timeline-gui.hpp b/src/gui/timeline/timeline-gui.hpp
index 59476467b..ad6b96a21 100644
--- a/src/gui/timeline/timeline-gui.hpp
+++ b/src/gui/timeline/timeline-gui.hpp
@@ -55,6 +55,7 @@
 #include "gui/ctrl/bus-term.hpp"
 #include "gui/model/w-link.hpp"
 #include "lib/diff/diff-mutable.hpp"
+#include "lib/nocopy.hpp"
 
 #include <memory>
 
@@ -73,6 +74,7 @@ namespace timeline {
   class TimelineGui
     : public model::WLink<TimelineWidget>
     , public lib::diff::DiffMutable
+    , util::Cloneable
     {
       using ID = BusTerm::ID;
       
@@ -83,8 +85,8 @@ namespace timeline {
       TimelineGui (ID identity, ID trackID);
       virtual ~TimelineGui();
       
-      // standard copy operations acceptable
-      
+      TimelineGui (TimelineGui const&);
+      TimelineGui (TimelineGui &&);
       
       operator ID()  const { return timelineID_; }
       
diff --git a/src/include/ui-protocol.hpp b/src/include/ui-protocol.hpp
index 6aa5cdb4a..eb6b7c3b8 100644
--- a/src/include/ui-protocol.hpp
+++ b/src/include/ui-protocol.hpp
@@ -51,9 +51,14 @@
 #define GUI_INTERFACE_UI_PROTOCOL_H
 
 
+#include "lib/error.hpp"
 #include "lib/symbol.hpp"
 
 
+namespace lib {
+namespace diff{
+  LUMIERA_ERROR_DECLARE(DIFF_STRUCTURE); ///< Invalid diff structure: implicit rules and assumptions violated.
+}}
 namespace Glib {
 //class ustring;  /////////////////////////////TODO needed?
 }
@@ -62,6 +67,7 @@ namespace gui {
 //using lib::Literal;
   using lib::Symbol;
 //using cuString = const Glib::ustring;
+  using lib::diff::LERR_(DIFF_STRUCTURE);
   
   
   extern const Symbol META_kind;
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index facc262a9..5eea72275 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1706,7 +1706,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1538263469667" TEXT="mi&#xdf;brauche InfoBox">
+<node CREATED="1504200793444" ID="ID_340215113" MODIFIED="1539394729294" TEXT="mi&#xdf;brauche InfoBox">
 <arrowlink COLOR="#f5dd67" DESTINATION="ID_19179662" ENDARROW="Default" ENDINCLINATION="743;-1563;" ID="Arrow_ID_1195014928" STARTARROW="None" STARTINCLINATION="-452;605;"/>
 <linktarget COLOR="#e0d18d" DESTINATION="ID_340215113" ENDARROW="Default" ENDINCLINATION="-389;5426;" ID="Arrow_ID_1440864098" SOURCE="ID_622217667" STARTARROW="None" STARTINCLINATION="-1637;-8191;"/>
 <icon BUILTIN="idea"/>
@@ -16490,17 +16490,19 @@
 </node>
 </node>
 <node CREATED="1486763376960" ID="ID_1618020758" MODIFIED="1518487921075" TEXT="Zugang zu den Timelines">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_810032444" MODIFIED="1539140992471" TEXT="Timeline injizieren">
+<node COLOR="#338800" CREATED="1480694550601" ID="ID_810032444" MODIFIED="1539394656564" TEXT="Timeline injizieren">
 <linktarget COLOR="#fec680" DESTINATION="ID_810032444" ENDARROW="Default" ENDINCLINATION="-451;-531;" ID="Arrow_ID_1378803021" SOURCE="ID_1375216048" STARTARROW="None" STARTINCLINATION="335;22;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1539141031692" ID="ID_224638279" MODIFIED="1539141042494" TEXT="Aufruf aus dem TreeMutator-Binding"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141043842" ID="ID_1475393315" MODIFIED="1539141098932" TEXT="brauche Allocator f&#xfc;r Timelines">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141064760" ID="ID_807914812" MODIFIED="1539141075481" TEXT="wo Service ansiedeln">
+<node COLOR="#338800" CREATED="1539141043842" ID="ID_1475393315" MODIFIED="1539394551139" TEXT="brauche Allocator f&#xfc;r Timelines">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#435e98" CREATED="1539141064760" ID="ID_807914812" MODIFIED="1539394508248" TEXT="wo Service ansiedeln">
 <icon BUILTIN="help"/>
+<node CREATED="1539394478891" ID="ID_1478223120" MODIFIED="1539394482926" TEXT="analog zum Error-Log"/>
+<node CREATED="1539394483610" ID="ID_847301374" MODIFIED="1539394505931" TEXT="vorl&#xe4;ufig: WindowLocator -&gt; PanelLoactor"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539141095892" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539394533967" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
+<icon BUILTIN="pencil"/>
 <node CREATED="1539388923323" ID="ID_585499856" MODIFIED="1539389164184" TEXT="Frage: wann wird eine Timeline im GUI repr&#xe4;sentiert?">
 <arrowlink COLOR="#c8a1fe" DESTINATION="ID_430199880" ENDARROW="Default" ENDINCLINATION="-629;0;" ID="Arrow_ID_1293894659" STARTARROW="None" STARTINCLINATION="-505;56;"/>
 <node CREATED="1539389169498" ID="ID_1287197830" MODIFIED="1539389171373" TEXT="immer?"/>
@@ -16515,12 +16517,18 @@
 <node CREATED="1539389434086" ID="ID_1428746299" MODIFIED="1539389441601" TEXT="mu&#xdf; das Widget zerst&#xf6;ren"/>
 <node CREATED="1539389442477" ID="ID_803437655" MODIFIED="1539389449704" TEXT="TimelineGui wird inaktiv"/>
 </node>
-</node>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539141166595" TEXT="TimelineWidget installieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394521229" ID="ID_1457306650" MODIFIED="1539394699315" TEXT="den Rest &#xfc;berlassen wir dem TimelinePanel">
+<arrowlink COLOR="#6bb2d4" DESTINATION="ID_50363803" ENDARROW="Default" ENDINCLINATION="381;11;" ID="Arrow_ID_1031630897" STARTARROW="None" STARTINCLINATION="-27;76;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141131742" ID="ID_1557130599" MODIFIED="1539141165195" TEXT="von diesem den Controller beziehen (WLink)">
+</node>
+</node>
+<node COLOR="#338800" CREATED="1539141131742" ID="ID_1557130599" MODIFIED="1539394616681" TEXT="WLink baut TimelineWidget und verdrahtet Controller">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539394795397" TEXT="TimelineWidget installieren">
+<arrowlink COLOR="#a678c8" DESTINATION="ID_1510868551" ENDARROW="Default" ENDINCLINATION="-587;-51;" ID="Arrow_ID_206932394" STARTARROW="None" STARTINCLINATION="-699;0;"/>
+<linktarget COLOR="#6bb2d4" DESTINATION="ID_50363803" ENDARROW="Default" ENDINCLINATION="381;11;" ID="Arrow_ID_1031630897" SOURCE="ID_1457306650" STARTARROW="None" STARTINCLINATION="-27;76;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node COLOR="#990000" CREATED="1539141189855" ID="ID_1121710933" MODIFIED="1539262827297" TEXT="Achtung: GUI lebt woanders...">
@@ -19045,6 +19053,22 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_712786561" MODIFIED="1538942194204" TEXT="Timeline-Panel">
 <linktarget COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" SOURCE="ID_1231562526" STARTARROW="None" STARTINCLINATION="860;206;"/>
 <icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394757429" ID="ID_376064530" MODIFIED="1539394763517" TEXT="wegr&#xe4;umen des Testcodes">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394765628" ID="ID_308731527" MODIFIED="1539394778891" TEXT="Widget-Struktur anlegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394779490" ID="ID_1710199928" MODIFIED="1539394784490" TEXT="Verwalten der Tabs">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394670721" ID="ID_1510868551" MODIFIED="1539394795397" TEXT="TimelineWidget &#xfc;bernehmen">
+<linktarget COLOR="#a678c8" DESTINATION="ID_1510868551" ENDARROW="Default" ENDINCLINATION="-587;-51;" ID="Arrow_ID_206932394" SOURCE="ID_50363803" STARTARROW="None" STARTINCLINATION="-699;0;"/>
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394802679" ID="ID_1716564275" MODIFIED="1539394807727" TEXT="neuen Tab daf&#xfc;r belegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -19234,7 +19258,7 @@
 </node>
 </node>
 <node CREATED="1477522265208" HGAP="53" ID="ID_41510242" MODIFIED="1518487921084" TEXT="Neuerungen" VSHIFT="28">
-<node CREATED="1477522271822" ID="ID_622217667" MODIFIED="1535647887424" TEXT="PanelExperiment">
+<node CREATED="1477522271822" ID="ID_622217667" MODIFIED="1539394729294" TEXT="PanelExperiment">
 <arrowlink COLOR="#e0d18d" DESTINATION="ID_340215113" ENDARROW="Default" ENDINCLINATION="-389;5426;" ID="Arrow_ID_1440864098" STARTARROW="None" STARTINCLINATION="-1637;-8191;"/>
 <icon BUILTIN="pencil"/>
 <node CREATED="1477522330886" ID="ID_1920846276" MODIFIED="1518487921084" TEXT="ScrolledWindow"/>

From 6e18452c376a2399eb70ae452862c1f7c88dc179 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 13 Oct 2018 21:56:10 +0200
Subject: [PATCH 151/178] Timeline: arrange for a tabbed notebook to hold the
 timeline widgets

...and remove all the leftover test and research code from 2016
which was archived to /research some days ago
in 3f87ef43ec
---
 src/gui/dialog/test-control.hpp            |  10 +-
 src/gui/panel/panel.cpp                    |   3 +-
 src/gui/panel/panel.hpp                    |  12 +-
 src/gui/panel/timeline-panel.cpp           | 327 ++-------------------
 src/gui/panel/timeline-panel.hpp           | 100 +------
 src/gui/timeline/timeline-gui.cpp          |  21 +-
 src/gui/timeline/timeline-gui.hpp          |   3 +-
 src/gui/timeline/timeline-widget-empty.hpp |   2 +
 src/gui/timeline/timeline-widget.cpp       |   2 +-
 src/gui/timeline/timeline-widget.hpp       |  16 +-
 wiki/thinkPad.ichthyo.mm                   |  50 +++-
 11 files changed, 129 insertions(+), 417 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 039c00ad3..f9644b474 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -105,7 +105,7 @@ namespace dialog {
   /**
    * Helper widget to simplify construction and wiring of a [Notebook] widget.
    * Gtk::Notebook is quite powerful container foundation to build complex dialog widgets with
-   * multiple pages on tabs. However, the construction, wiring an setup is notoriously tedious,
+   * multiple pages on tabs. However, the construction, wiring and setup is notoriously tedious,
    * due to the repetitiveness and the sheer amount of child widgets spread over various pages.
    * 
    * This design draft is an attempt to mitigate the required boilerplate, without overly much
@@ -157,10 +157,10 @@ namespace dialog {
       
       /**
        * Ticket #1099 : perform a dummy round-trip to verify Proc-GUI integration.
-       * This routine invokes the command `test_meta_displayInfo` down in Proc-Layer, passing the settings
-       * from the radio buttons to select the flavour of feedback, and the text for feedback content.
-       * The expected behaviour is for the invoked command to send a feedback via UI-Bus towards
-       * the ErrorLogDisplay within the InfoboxPanel.
+       * This routine invokes the command `test_meta_displayInfo` and friends down in Proc-Layer,
+       * passing the settings from the radio buttons to select the flavour of feedback, and the text
+       * for feedback content. The expected behaviour is for the invoked command to send a feedback
+       * via UI-Bus towards the ErrorLogDisplay within the InfoboxPanel.
        */
       struct Page1 : Page
         {
diff --git a/src/gui/panel/panel.cpp b/src/gui/panel/panel.cpp
index a663db660..1b740d2af 100644
--- a/src/gui/panel/panel.cpp
+++ b/src/gui/panel/panel.cpp
@@ -42,7 +42,8 @@ namespace panel{
                ,Gdl::DockItem& dockItem
                ,const gchar* longName
                ,const gchar* stockID)
-    : panelManager_(panelManager)
+    : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
+    , panelManager_(panelManager)
     , dockItem_(dockItem)
     , panelBar_(*this, stockID)
     {
diff --git a/src/gui/panel/panel.hpp b/src/gui/panel/panel.hpp
index d79c24305..8b34e9bdc 100644
--- a/src/gui/panel/panel.hpp
+++ b/src/gui/panel/panel.hpp
@@ -36,18 +36,18 @@
 #include <gdlmm.h>
 
 namespace gui {
-  namespace workspace {
-    class PanelManager;
-    class WorkspaceWindow;
-  }
-  namespace panel {
+namespace workspace {
+  class PanelManager;
+  class WorkspaceWindow;
+}
+namespace panel {
   
   
   /**
    * The base class for all dockable panels.
    */
   class Panel
-    : public Gtk::VBox
+    : public Gtk::Box
     {
     protected:
       
diff --git a/src/gui/panel/timeline-panel.cpp b/src/gui/panel/timeline-panel.cpp
index 97131c60d..38c6fe81f 100644
--- a/src/gui/panel/timeline-panel.cpp
+++ b/src/gui/panel/timeline-panel.cpp
@@ -33,105 +33,48 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/panel/timeline-panel.hpp"
+#include "gui/timeline/timeline-widget.hpp"
+#include "gui/timeline/timeline-widget-empty.hpp"
 
 //#include "gui/workspace/workspace-window.hpp"
-#include "gui/ui-bus.hpp"
-#include "lib/format-string.hpp"
-#include "lib/format-cout.hpp"
+//#include "gui/ui-bus.hpp"
+//#include "lib/format-string.hpp"
+//#include "lib/format-cout.hpp"
 
 //#include "lib/util.hpp"
-#include <algorithm>
-#include <cstdlib>
-#include <string>
+//#include <algorithm>
+//#include <cstdlib>
+//#include <string>
 
 
 
-using util::_Fmt;
+//using util::_Fmt;
 //using std::shared_ptr;
-//using std::weak_ptr;
+using std::make_unique;
 //using util::contains;
-using Gtk::Widget;
-using sigc::mem_fun;
-using sigc::ptr_fun;
-using std::string;
-using std::rand;
-using std::max;
+//using Gtk::Widget;
+//using sigc::mem_fun;
+//using sigc::ptr_fun;
+//using std::string;
 
 
 namespace gui {
 namespace panel {
-    
+  
+  using timeline::TimelineWidget;
+  using timeline::TimelineWidgetEmpty;
   
   
   TimelinePanel::TimelinePanel (workspace::PanelManager& panelManager,
                                 Gdl::DockItem& dockItem)
     : Panel(panelManager, dockItem, getTitle(), getStockID())
-    , twoParts_(Gtk::ORIENTATION_VERTICAL)
-    , buttons_()
-    , frame_("Gtk::Layout Experiments")
-    , scroller_()
-    , canvas_()
+    , tabs_{}
+    , pages_{}
     {
-      twoParts_.pack_start(buttons_, Gtk::PACK_SHRINK);
-      twoParts_.pack_start(frame_);
-      
-      buttons_.set_layout(Gtk::BUTTONBOX_START);
-      
-      // buttons to trigger experiments
-      button_1_.set_label("_place");
-      button_1_.set_use_underline();
-      button_1_.set_tooltip_markup("<b>Experiment 1</b>:\nplace new child widget\nat random position on the canvas");
-      button_1_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_1));
-      buttons_.add(button_1_);
-      
-      button_2_.set_label("_move");
-      button_2_.set_use_underline();
-      button_2_.set_tooltip_markup("<b>Experiment 2</b>:\nmove all child widgets randomly");
-      button_2_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_2));
-      buttons_.add(button_2_);
-      
-      button_3_.set_label("a_lign");
-      button_3_.set_use_underline();
-      button_3_.set_tooltip_markup("<b>Experiment 3</b>:\nalign all child widgets in a row\nwith silight random vertical offset");
-      button_3_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_3));
-      buttons_.add(button_3_);
-      
-      button_4_.set_label("_grow");
-      button_4_.set_use_underline();
-      button_4_.set_tooltip_markup("<b>Experiment 4</b>:\nextend arbitrary child widget's text");
-      button_4_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_4));
-      buttons_.add(button_4_);
-      
-      button_5_.set_label("_kill");
-      button_5_.set_use_underline();
-      button_5_.set_tooltip_markup("<b>Experiment 5</b>:\nkill arbitrary child widget");
-      button_5_.signal_clicked().connect(
-                  mem_fun(*this, &TimelinePanel::experiment_5));
-      buttons_.add(button_5_);
-      
-      toggleDraw_.set_label("draw");
-      toggleDraw_.signal_clicked().connect(
-                  [this]() {
-                             canvas_.enableDraw (this->toggleDraw_.get_active());
-                           });
-      buttons_.add(toggleDraw_);
-      //(End)buttons...
-      
-      frame_.add(scroller_);
-      frame_.set_border_width(5);
-      
-      scroller_.set_shadow_type(Gtk::SHADOW_NONE);
-      scroller_.set_border_width(10);
-      scroller_.add(canvas_);
-      
-      canvas_.adjustSize();
+      pages_.emplace_back (new TimelineWidgetEmpty{});
       
       // show everything....
-      this->add(twoParts_);
+      this->add(tabs_);
       this->show_all();
     }
   
@@ -150,236 +93,10 @@ namespace panel {
   
   
   void
-  TimelinePanel::addTimeline (std::unique_ptr<timeline::TimelineWidget>&& widget)
+  TimelinePanel::addTimeline (PageHandle&& pTimelineWidget)
   {
     UNIMPLEMENTED ("take ownership of the widget and place it into a new tab");
   }
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1016 : WIP kill everything below....  
-  void
-  TimelinePanel::experiment_1()
-  {
-    frame_.set_label("Experiment 1... PLACE");
-    
-    ChildEx* chld = makeChld();
-    childz_.push_back(chld);
-    uint x = rand() % 1000;
-    uint y = rand() % 500;
-    canvas_.put(*chld, x, y);
-    chld->show();
-    canvas_.adjustSize();
-  }
-  
-  
-  void
-  TimelinePanel::experiment_2()
-  {
-    frame_.set_label("Experiment 2... MOVE");
-    for (Widget* chld : childz_)
-      {
-        uint x = canvas_.child_property_x(*chld);
-        uint y = canvas_.child_property_y(*chld);
-        int deltaX = -20 + rand() % 41;
-        int deltaY = -15 + rand() % 31;
-        x = uint(max (0, int(x) + deltaX));
-        y = uint(max (0, int(y) + deltaY));
-        
-        canvas_.move (*chld, x,y);
-      }
-    canvas_.adjustSize();
-  }
-  
-  
-  void
-  TimelinePanel::experiment_3()
-  {
-    frame_.set_label("Experiment 3... ALIGN");
-    uint pos=0;
-    for (Widget* chld : childz_)
-      {
-        uint y = rand() % 30;
-        canvas_.move (*chld, pos, y);
-        
-        int width = chld->get_allocated_width();
-        pos += 0.6 * width;
-      }
-    canvas_.adjustSize();
-  }
-  
-  
-  void
-  TimelinePanel::experiment_4()
-  {
-    frame_.set_label("Experiment 4... GROW");
-    uint selector = rand() % childz_.size();
-    ChildEx& toGrow = *childz_[selector];
-    toGrow.set_label ("***"+toGrow.get_label()+"***");
-  }
-  
-  
-  void
-  TimelinePanel::experiment_5()
-  {
-    frame_.set_label("Experiment 5... KILL");
-    uint killPos = rand() % childz_.size();
-    ChildV::iterator killThat(&childz_[killPos]);
-    ChildEx* victim = *killThat;
-    childz_.erase (killThat);
-    canvas_.remove (*victim);
-    delete victim;
-  }
-  
-  
-  void
-  Canvas::enableDraw (bool yes)
-  {
-    shallDraw_ = yes;
-    
-    // force redrawing of the visible area...
-    auto win = get_window();
-    if (win)
-      {
-        int w = get_allocation().get_width();
-        int h = get_allocation().get_height();
-        Gdk::Rectangle rect{0, 0, w, h};
-        win->invalidate_rect(rect, false);
-      }
-  }
-  
-  
-  
-  void
-  Canvas::adjustSize()
-  {
-    recalcExtension_ = true;
-  }
-  
-  void
-  Canvas::determineExtension()
-  {
-      if (not recalcExtension_) return;
-      
-      uint extH=20, extV=20;
-      Gtk::Container::ForeachSlot callback
-        = [&](Gtk::Widget& chld)
-                {
-                  auto alloc = chld.get_allocation();
-                  uint x = alloc.get_x();
-                  uint y = alloc.get_y();
-                  x += alloc.get_width();
-                  y += alloc.get_height();
-                  extH = max (extH, x);
-                  extV = max (extV, y);
-                };
-      foreach(callback);
-      recalcExtension_ = false;
-      set_size (extH, extV);
-  }
-  
-  
-  bool
-  Canvas::on_draw(Cairo::RefPtr<Cairo::Context> const& cox)
-  {
-    if (shallDraw_)
-      {
-        uint extH, extV;
-        determineExtension();
-        get_size (extH, extV);
-        
-        auto adjH = get_hadjustment();
-        auto adjV = get_vadjustment();
-        double offH = adjH->get_value();
-        double offV = adjV->get_value();
-        
-        cox->save();
-        cox->translate(-offH, -offV);
-        
-        // draw red diagonal line
-        cox->set_source_rgb(0.8, 0.0, 0.0);
-        cox->set_line_width (10.0);
-        cox->move_to(0, 0);
-        cox->line_to(extH, extV);
-        cox->stroke();
-        cox->restore();
-        
-        // cause child widgets to be redrawn
-        bool event_is_handled = Gtk::Layout::on_draw(cox);
-        
-        // any drawing which follows happens on top of child widgets...
-        cox->save();
-        cox->translate(-offH, -offV);
-        
-        cox->set_source_rgb(0.2, 0.4, 0.9);
-        cox->set_line_width (2.0);
-        cox->rectangle(0,0, extH, extV);
-        cox->stroke();
-        cox->restore();
-        
-        return event_is_handled;
-      }
-    else
-      return Gtk::Layout::on_draw(cox);
-  }
-
-  
-  /* === Support for Investigation === */
-  
-  namespace {
-    _Fmt childID("Chld-%02d");
-    
-    int instanceCnt = 0;
-  }
-  
-  
-  uint ChildEx::childNo = 0;
-  
-  
-  ChildEx::ChildEx()
-    : Gtk::Button(string (childID % childNo++))
-    {
-      ++instanceCnt;
-    }
-  
-  
-  void
-  ChildEx::on_clicked()
-  {
-    cout << "|=="<<get_label()<<endl;
-  }
-  
-  
-  ChildEx*
-  TimelinePanel::makeChld()
-  {
-    return Gtk::manage(new ChildEx);
-  }
-
-  
-  ////////////////////////////////////////////////////////////////////TICKET #1020 : verification code for instance management
-  ChildEx::~ChildEx()
-    {
-      --instanceCnt;
-      if (instanceCnt > 0)
-        cout << "  ↯↯  still "<<instanceCnt<<" children to kill..."<<endl;
-      else
-      if (instanceCnt == 0)
-        cout << "+++ Success: all children are dead..."<<endl;
-      else
-        cout << "### ALARM ###"<<endl
-             << "instanceCnt == "<<instanceCnt <<endl;
-    }
-  
-  void
-  __verifyDeadChildren()
-    {
-      if (instanceCnt == 0)
-        cout << "+++ Success: all children are dead..."<<endl;
-      else
-        cout << "### ALARM ###"<<endl
-             << "instanceCnt == "<<instanceCnt <<endl;
-    }
-  ////////////////////////////////////////////////////////////////////TICKET #1020 : verification code for instance management
-  
   
   
 }}   // namespace gui::panel
diff --git a/src/gui/panel/timeline-panel.hpp b/src/gui/panel/timeline-panel.hpp
index 75e9e1b1e..3d52aefa6 100644
--- a/src/gui/panel/timeline-panel.hpp
+++ b/src/gui/panel/timeline-panel.hpp
@@ -46,122 +46,44 @@
 #include "gui/panel/panel.hpp"
 #include "gui/timeline/timeline-widget.hpp"
 
+#include <gtkmm/notebook.h>
 #include <memory>
 #include <vector>
 
 
 
 namespace gui  {
-namespace model{
-  class Sequence;
-}
-namespace panel {
-  
-//using std::shared_ptr;
-  
-  /**
-   * "experimental" child widget for investigation of Gtk::Layout
-   */
-  class ChildEx
-    : public Gtk::Button
-    {
-      static uint childNo;
-      
-    public:
-      ChildEx();
-     ~ChildEx();
-      
-    private:
-      void on_clicked()  override;
-    };
-  
-  void __verifyDeadChildren();
-  
-  
-  
-  /**
-   * "experimental" custom canvas, based on Gtk::Layout.
-   * In addition this customised widget supports direct drawing
-   */
-  class Canvas
-    : public Gtk::Layout
-    {
-      bool shallDraw_;
-      bool recalcExtension_ = false;
-      
-    public:
-      void enableDraw (bool);
-      void adjustSize();
-      
-    private:
-      virtual bool on_draw (Cairo::RefPtr<Cairo::Context> const&)  override;
-      
-      void determineExtension();
-    };
-  
+namespace panel{
   
   
   /**
    * Dockable panel to hold timeline widget(s).
-   * @todo build the actual implementation, after finishing the investigation
-   * 
-   * ## Investigation of gtk::GtkLayout
-   * As of 10/2016, we start this task with an exploration of GTK behaviour
-   * 
-   * \par Plan of investigation
-   *  1. place some simple widgets (Buttons) ✔
-   *  2. learn how to draw ✔
-   *  3. place a huge number of widgets, to scrutinise scrolling and performance
-   *  4. place widgets overlapping and irregularily, beyond the scrollable area ✔
-   *  5. bind signals to those widgets, to verify event dispatching ✔
-   *  6. bind some further signal(s) to the ~GtkLayout container
-   *  7. hide and re-show a partially and a totally overlapped widget
-   *  8. find a way to move a widget ✔ and delete arbitrary widgets ✔
-   *  9. expand an existing widget (text change) ✔
-   *  10. build a custom "clip" widget
-   *  11. retrofit all preceding tests to use this "clip" widget
+   * @todo WIP 10/2018 the actual re-implementation of Lumiera's Timeline display
    */
   class TimelinePanel
     : public Panel
     {
+      using PageHandle = std::unique_ptr<timeline::TimelinePage>;
+      using Timelines = std::vector<PageHandle>;
+      
+      Gtk::Notebook tabs_;
+      Timelines pages_;
+      
     public:
       /**
        * @param panel_manager The owner panel manager widget.
        * @param dock_item The GdlDockItem that will host this panel.
        */
-      TimelinePanel(workspace::PanelManager&, Gdl::DockItem&);
+      TimelinePanel (workspace::PanelManager&, Gdl::DockItem&);
       
       
       static const char* getTitle();
       static const gchar* getStockID();
       
       /////////////////////////////////////////////////////////////TODO WIP
-      void addTimeline (std::unique_ptr<timeline::TimelineWidget>&&);
+      void addTimeline (PageHandle &&);
       
     private:
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////TICKET #1016 : WIP kill everything below....  
-      Gtk::Box twoParts_;
-      Gtk::ButtonBox buttons_;
-      Gtk::Button button_1_;
-      Gtk::Button button_2_;
-      Gtk::Button button_3_;
-      Gtk::Button button_4_;
-      Gtk::Button button_5_;
-      Gtk::CheckButton toggleDraw_;
-      Gtk::Frame frame_;
-      Gtk::ScrolledWindow scroller_;
-      Canvas canvas_;
-      
-      ChildEx* makeChld();
-      
-      using ChildV = std::vector<ChildEx*>;
-      ChildV childz_;
-      
-      void experiment_1();
-      void experiment_2();
-      void experiment_3();
-      void experiment_4();
-      void experiment_5();
     };
   
   
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index b2295e862..332e4b456 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -41,7 +41,7 @@
 #include <utility>
 
 using lib::diff::TreeMutator;
-using std::make_unique;
+using std::unique_ptr;
 
 
 namespace gui {
@@ -77,15 +77,24 @@ namespace timeline {
   
   
   /**
-   * actually build a TimelineWidget to enact the role
-   * represented by this smart-handle
+   * actually build a TimelineWidget to enact the role represented by this smart-handle.
+   * @remark some implementation twist involved here, since TimelinePanel manages a collection
+   *    of `unique_ptr<TimelinePage>`, in order to be able to hold an empty placeholder page.
+   *    Since C++ unfortunately does not support _Covariance_ proper, we need to fabricate a
+   *    unique_ptr<TimelinePage> right here, which can than be handed over to TimelinePanel,
+   *    yet still we _do inherit_ from WLink<TimelineWidget>, i.e. expose the subclass.
+   *    The `unque_ptr` owns and manages the TimelineWidget, which is itself non-copyable
+   *    and stays at a fixed location in heap memory, as is required by gui::ctrl::Nexus
+   *    to maintain a registration of the UI-Bus connection. WLink to the contrary
+   *    just connects to the widget, and is automatically disconnected when it dies.
    */
-  std::unique_ptr<TimelineWidget>
+  unique_ptr<TimelinePage>
   TimelineGui::buildTimelineWidget (BusTerm& nexus)
   {
-    auto widget = std::make_unique<TimelineWidget> (timelineID_, rootTrackID_, nexus);
+    TimelineWidget* widget;
+    unique_ptr<TimelinePage> pageHandle {widget = new TimelineWidget{timelineID_, rootTrackID_, nexus}};
     this->connect (*widget);
-    return widget;
+    return pageHandle;
   }
   
   
diff --git a/src/gui/timeline/timeline-gui.hpp b/src/gui/timeline/timeline-gui.hpp
index ad6b96a21..495645cde 100644
--- a/src/gui/timeline/timeline-gui.hpp
+++ b/src/gui/timeline/timeline-gui.hpp
@@ -63,6 +63,7 @@
 namespace gui  {
 namespace timeline {
   
+  class TimelinePage;
   class TimelineWidget;
   using ctrl::BusTerm;
   
@@ -93,7 +94,7 @@ namespace timeline {
       
       /** actually build a TimelineWidget to enact the role
        *  represented by this smart-handle */
-      std::unique_ptr<TimelineWidget> buildTimelineWidget (BusTerm&);
+      std::unique_ptr<TimelinePage> buildTimelineWidget (BusTerm&);
       
       /** @internal this method is invoked by the UI-Bus when dispatching a MutationMessage... */
       void buildMutator (lib::diff::TreeMutator::Handle buffer)  override;
diff --git a/src/gui/timeline/timeline-widget-empty.hpp b/src/gui/timeline/timeline-widget-empty.hpp
index 4bb681a19..3e9d17d6e 100644
--- a/src/gui/timeline/timeline-widget-empty.hpp
+++ b/src/gui/timeline/timeline-widget-empty.hpp
@@ -38,6 +38,7 @@
 
 #include "gui/gtk-base.hpp"
 
+#include "gui/timeline/timeline-widget.hpp"
 #include "lib/time/timevalue.hpp"
 
 //#include <memory>
@@ -56,6 +57,7 @@ namespace timeline {
    *     and a scrollable timeline body (right). The layout of both parts is aligned.
    */
   class TimelineWidgetEmpty
+    : public TimelinePage
     {
     public:
       /**
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 7fcc6db8b..9d6c7b787 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -66,7 +66,7 @@ namespace timeline {
   
   
   TimelineWidget::TimelineWidget (BusTerm::ID identity, BusTerm::ID trackID, BusTerm& nexus)
-    : Gtk::Paned{Gtk::ORIENTATION_VERTICAL}
+    : TimelinePage{}
     , control_{new TimelineController{identity, trackID, nexus}}
     , layout_{new LayoutManager}
     {
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index cac87d043..68581bc7b 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -78,6 +78,20 @@ namespace timeline {
   
   using ctrl::BusTerm;
   
+  /**
+   * Interface: GUI page holding a timeline display
+   */
+  class TimelinePage
+    : public Gtk::Paned
+    {
+    public:
+      virtual ~TimelinePage() { }   ///< this is an interface
+      
+      TimelinePage()
+        : Gtk::Paned{Gtk::ORIENTATION_VERTICAL}
+        { }
+    };
+  
   /**
    * Core timeline display (custom widget).
    * Top level entry point to the timeline display component.
@@ -86,7 +100,7 @@ namespace timeline {
    *     and a scrollable timeline body (right). The layout of both parts is aligned.
    */
   class TimelineWidget
-    : public Gtk::Paned
+    : public TimelinePage
     {
       std::unique_ptr<TimelineController> control_;
       std::unique_ptr<LayoutManager>      layout_;
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 5eea72275..1a2cc5268 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19053,11 +19053,17 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_712786561" MODIFIED="1538942194204" TEXT="Timeline-Panel">
 <linktarget COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" SOURCE="ID_1231562526" STARTARROW="None" STARTINCLINATION="860;206;"/>
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394757429" ID="ID_376064530" MODIFIED="1539394763517" TEXT="wegr&#xe4;umen des Testcodes">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539394757429" ID="ID_376064530" MODIFIED="1539459391069" TEXT="wegr&#xe4;umen des Testcodes">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394765628" ID="ID_308731527" MODIFIED="1539394778891" TEXT="Widget-Struktur anlegen">
 <icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539459412979" ID="ID_1273129379" MODIFIED="1539459441106" TEXT="leere Platzhalter-Timeline">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539459428928" ID="ID_1156538064" MODIFIED="1539459436200" TEXT="best&#xfc;cken">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394779490" ID="ID_1710199928" MODIFIED="1539394784490" TEXT="Verwalten der Tabs">
 <icon BUILTIN="flag-yellow"/>
@@ -35312,6 +35318,46 @@
 </node>
 <node CREATED="1539134848420" ID="ID_4911843" MODIFIED="1539134870669" TEXT="ein selbstbez&#xfc;glicher substanzloser Strukturkern"/>
 <node CREATED="1539134911707" ID="ID_847488848" MODIFIED="1539134930189" TEXT="DiffConstituent -&gt; emanation as diff"/>
+<node CREATED="1539395579133" ID="ID_589161293" MODIFIED="1539395583088" TEXT="Anforderungen">
+<node CREATED="1539395591547" ID="ID_1807468145" MODIFIED="1539395602517" TEXT="Population-Diff erzeugen"/>
+<node CREATED="1539395603034" ID="ID_1342955865" MODIFIED="1539395608301" TEXT="Delta-Diff erzeugen">
+<node CREATED="1539395609169" ID="ID_1189203662" MODIFIED="1539395616803" TEXT="mu&#xdf; exakt den vorherigen Stand kennen"/>
+<node CREATED="1539395620120" ID="ID_1953087376" MODIFIED="1539395775000" TEXT="Stichwort: asynchrone Kommunkiation">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      GUI und Session schicken Nachrichten.
+    </p>
+    <p>
+      W&#228;hrend der Builder l&#228;uft, kann das GUI schon weitere Nachrichten geschickt haben,
+    </p>
+    <p>
+      die dann noch in der ProcDispatcher-Queue h&#228;ngen. Daher kann sich die Antwort
+    </p>
+    <p>
+      als Resultat auf einen Builder-Lauf noch auf einen vorherigen Zustand beziehen.
+    </p>
+    <p>
+      Es kann aber auch ein Builder-Lauf die kummulierten Ergebnisse von mehreren Commands behandeln.
+    </p>
+    <p>
+      In jedem Fall mu&#223; der DiffConstituent genau wissen, was der zuletzt geschickte Stand war,
+    </p>
+    <p>
+      damit er einen Diff erzeugt, der garantiert auf der anderen Seite anwendbar ist.
+    </p>
+    <p>
+      Denn letzteres ist bei uns eine Grundannahme. Es gibt keine ungef&#228;hren Diffs!
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1539270491013" ID="ID_1435731309" MODIFIED="1539388289807" TEXT="Problem der korrekten Diff-Struktur">
 <arrowlink COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="590;-127;" ID="Arrow_ID_308349501" STARTARROW="None" STARTINCLINATION="915;0;"/>

From 67cccbdc5da195641fc1811f142aafd69add6ee7 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 13 Oct 2018 23:58:49 +0200
Subject: [PATCH 152/178] Timeline: actually accept and install the
 TimelineWidget

As starting point, provide an empty placeholder widget to fill the void
---
 src/gui/panel/timeline-panel.cpp           | 39 +++++------
 src/gui/panel/timeline-panel.hpp           | 20 +++---
 src/gui/timeline/timeline-controller.hpp   |  8 ++-
 src/gui/timeline/timeline-gui.cpp          |  2 +-
 src/gui/timeline/timeline-widget-empty.cpp | 80 ----------------------
 src/gui/timeline/timeline-widget-empty.hpp | 80 +++++++++++++---------
 src/gui/timeline/timeline-widget.cpp       |  8 +++
 src/gui/timeline/timeline-widget.hpp       | 10 ++-
 wiki/thinkPad.ichthyo.mm                   | 51 +++++++-------
 9 files changed, 125 insertions(+), 173 deletions(-)
 delete mode 100644 src/gui/timeline/timeline-widget-empty.cpp

diff --git a/src/gui/panel/timeline-panel.cpp b/src/gui/panel/timeline-panel.cpp
index 38c6fe81f..7bd68d0b7 100644
--- a/src/gui/panel/timeline-panel.cpp
+++ b/src/gui/panel/timeline-panel.cpp
@@ -36,31 +36,13 @@
 #include "gui/timeline/timeline-widget.hpp"
 #include "gui/timeline/timeline-widget-empty.hpp"
 
-//#include "gui/workspace/workspace-window.hpp"
-//#include "gui/ui-bus.hpp"
-//#include "lib/format-string.hpp"
-//#include "lib/format-cout.hpp"
-
-//#include "lib/util.hpp"
-//#include <algorithm>
-//#include <cstdlib>
-//#include <string>
-
-
-
-//using util::_Fmt;
-//using std::shared_ptr;
 using std::make_unique;
-//using util::contains;
-//using Gtk::Widget;
-//using sigc::mem_fun;
-//using sigc::ptr_fun;
-//using std::string;
 
 
 namespace gui {
 namespace panel {
   
+  using timeline::TimelinePage;
   using timeline::TimelineWidget;
   using timeline::TimelineWidgetEmpty;
   
@@ -71,7 +53,7 @@ namespace panel {
     , tabs_{}
     , pages_{}
     {
-      pages_.emplace_back (new TimelineWidgetEmpty{});
+      addTimeline (PageHandle{new TimelineWidgetEmpty{}});
       
       // show everything....
       this->add(tabs_);
@@ -91,11 +73,26 @@ namespace panel {
   }
   
   
+  namespace {
+    bool
+    isEmptyTimeline (auto& pages)
+    {
+      return 1 == pages.size()
+         and dynamic_cast<TimelineWidgetEmpty*> (pages[0].get());
+    }
+  }
   
   void
   TimelinePanel::addTimeline (PageHandle&& pTimelineWidget)
   {
-    UNIMPLEMENTED ("take ownership of the widget and place it into a new tab");
+    if (isEmptyTimeline (pages_))
+      {
+        tabs_.remove_page();
+        pages_.clear();
+      }
+    pages_.push_back (move (pTimelineWidget));
+    TimelinePage& addedPage = *pages_.back();
+    tabs_.append_page (addedPage, addedPage.getLabel());
   }
   
   
diff --git a/src/gui/panel/timeline-panel.hpp b/src/gui/panel/timeline-panel.hpp
index 3d52aefa6..4691cd133 100644
--- a/src/gui/panel/timeline-panel.hpp
+++ b/src/gui/panel/timeline-panel.hpp
@@ -24,16 +24,14 @@
 /** @file timeline-panel.hpp
  ** A dockable container to hold a notebook of timeline displays.
  ** 
- ** ## planned design 2/2017
- ** The architecture of the UI is in a state of transition right now, working towards the goal
- ** of interconnected layers and an operative session and engine. Within the new control structure
- ** about to be built, there is an UI top-level circle of managing entities to handle global concerns
- ** and actions. The ctrl::InteractionDirector incorporates the role of _model root_ and thus manages
- ** a collection of timelines. The timeline panel exposes this collection and allows to view and
- ** interact with one of the given timelines. The build-up of the timeline display and thus the
- ** initiative to expose a timeline comes from the interaction director -- but as usual with
- ** graphical user interfaces, any user interaction after this point is handled autonomously
- ** by the gui::timeline::TimelineWidget and gui::timeline::TimelineController
+ ** ## Management of Timeline display
+ ** Within the Lumiera GTK UI, there is an UI top-level circle of managing entities to handle global
+ ** concerns and actions. The ctrl::InteractionDirector incorporates the role of _model root_ and thus
+ ** manages a collection of timelines. The timeline panel exposes this collection and allows to view and
+ ** interact with one of the given timelines. The build-up of the timeline display and thus the initiative
+ ** to expose a timeline comes from the interaction director -- but as usual with graphical user interfaces,
+ ** any user interaction after this point is handled autonomously by the gui::timeline::TimelineWidget and
+ ** gui::timeline::TimelineController
  ** 
  ** @todo as of 10/2016 this is WIP-WIP-WIP : canvas widgets experiment
  ** @todo as of 10/2018 we start to build a new timeline widget, connected to the UI-Bus
@@ -80,7 +78,7 @@ namespace panel{
       static const char* getTitle();
       static const gchar* getStockID();
       
-      /////////////////////////////////////////////////////////////TODO WIP
+      /** take ownership of the widget and place it into a new tab */
       void addTimeline (PageHandle &&);
       
     private:
diff --git a/src/gui/timeline/timeline-controller.hpp b/src/gui/timeline/timeline-controller.hpp
index 44df1e57c..07ce4609c 100644
--- a/src/gui/timeline/timeline-controller.hpp
+++ b/src/gui/timeline/timeline-controller.hpp
@@ -99,7 +99,7 @@ namespace timeline {
        */
       TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus);
       
-     ~TimelineController();  
+     ~TimelineController();
       
       
       /** set up a binding to respond to mutation messages via UiBus */
@@ -108,6 +108,12 @@ namespace timeline {
       
     public: /* ===== Control interface ===== */
       
+      string const&
+      getName()  const
+        {
+          return name_;
+        }
+      
     public: /* ===== Signals ===== */
       
     private:/* ===== Events ===== */
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index 332e4b456..6e78f04c5 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -58,7 +58,7 @@ namespace timeline {
     { }
   
   /**
-   * @remark basically the default, just defined here explicitly
+   * @remark basically the default copy ctor, just redefined here explicitly
    *  to allow using TimelineGui without the need to include timeline-widget.hpp
    */
   TimelineGui::TimelineGui (TimelineGui const& r)
diff --git a/src/gui/timeline/timeline-widget-empty.cpp b/src/gui/timeline/timeline-widget-empty.cpp
deleted file mode 100644
index 2874af081..000000000
--- a/src/gui/timeline/timeline-widget-empty.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
-  TimelineWidgetEmpty  -  placeholder widget for a missing timeline
-
-  Copyright (C)         Lumiera.org
-    2016,               Hermann Vosseler <Ichthyostega@web.de>
-
-  This program is free software; you can redistribute it and/or
-  modify it under the terms of the GNU General Public License as
-  published by the Free Software Foundation; either version 2 of
-  the License, or (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-* *****************************************************/
-
-
-/** @file timeline-widget-empty.cpp
- ** Implementation of an empty timeline placeholder.
- ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
- ** 
- */
-
-
-#include "gui/gtk-base.hpp"
-#include "gui/timeline/timeline-widget-empty.hpp"
-
-//#include "gui/workspace/workspace-window.hpp"
-//#include "gui/ui-bus.hpp"
-//#include "lib/format-string.hpp"
-//#include "lib/format-cout.hpp"
-
-//#include "lib/util.hpp"
-//#include <algorithm>
-//#include <cstdlib>
-
-
-
-//using util::_Fmt;
-//using std::shared_ptr;
-//using std::weak_ptr;
-//using util::contains;
-//using Gtk::Widget;
-//using sigc::mem_fun;
-//using sigc::ptr_fun;
-//using std::cout;
-//using std::endl;
-
-
-namespace gui {
-namespace timeline {
-  
-//const int TimelineWidget::TrackPadding = 1;
-//const int TimelineWidget::HeaderWidth = 150;
-//const int TimelineWidget::HeaderIndentWidth = 10;
-  
-  
-  
-  
-  TimelineWidgetEmpty::TimelineWidgetEmpty ()
-    {
-    }
-  
-  
-  TimelineWidgetEmpty::~TimelineWidgetEmpty()
-  {
-  }
-  
-  
-  
-  
-  
-}}// namespace gui::timeline
diff --git a/src/gui/timeline/timeline-widget-empty.hpp b/src/gui/timeline/timeline-widget-empty.hpp
index 3e9d17d6e..6d587427f 100644
--- a/src/gui/timeline/timeline-widget-empty.hpp
+++ b/src/gui/timeline/timeline-widget-empty.hpp
@@ -23,12 +23,12 @@
 
 /** @file timeline-widget-empty.hpp
  ** Empty placeholder to be rendered when the UI starts without session.
- ** The TimelinePannel represents the [model root](\ref mobject::session::Root) and thus
- ** has the responsibility to manage the individual TimelineWidget instances. In case the
- ** UI is started with no usable session loaded in Proc-Layer, this empty placeholder widget
- ** can be inserted.
- ** 
- ** @todo as of 12/2016 a complete rework of the timeline display is underway
+ ** A TimelinePannel is able to expose several timelines in a tabbed notebook.
+ ** However, the actual [model root](\ref mobject::session::Root) is represented by the
+ ** InteractionDirector, which receives the timeline contents pushed up from the session
+ ** as diff messages and injects a TimelineWidget for each of them. But when not timeline
+ ** is present and thus no actual TimelineWidget was yet instantiated, the TimelinePanel
+ ** will install this TimelineWidgetEmpty placeholder instead to fill the void.
  ** 
  */
 
@@ -37,13 +37,7 @@
 #define GUI_TIMELINE_TIMELINE_WIDGET_EMPTY_H
 
 #include "gui/gtk-base.hpp"
-
 #include "gui/timeline/timeline-widget.hpp"
-#include "lib/time/timevalue.hpp"
-
-//#include <memory>
-//#include <vector>
-
 
 
 namespace gui  {
@@ -51,32 +45,52 @@ namespace timeline {
   
   
   /**
-   * Core timeline display (custom widget).
-   * @todo WIP-WIP-rewrite as of 12/2016
-   * @remarks At top level, this widget is split into a header pane (left)
-   *     and a scrollable timeline body (right). The layout of both parts is aligned.
+   * Placeholder to show when no actual Timeline is present.
+   * Typically this happens when the application starts up and no session has been loaded (yet).
+   * @todo This widget could offer a list of last sessions to pick from etc...
+   * @remarks We just display some quote to fill the void...
    */
   class TimelineWidgetEmpty
     : public TimelinePage
     {
+      
+      Gtk::Frame frame_;
+      Gtk::Box   content_;
+      Gtk::Label messageText_;
+      Gtk::Label quoteText_;
+      
+      Gtk::Image image_;
+      
+      cuString
+      getLabel()  const override
+        {
+          return _("[virgin]");
+        }
+      
     public:
-      /**
-       * @param source_state state to be used used as the
-       *    data source (model) for this timeline widget.
-       */
-      TimelineWidgetEmpty();
-     ~TimelineWidgetEmpty();  
-      
-      
-      
-    public: /* ===== Control interface ===== */
-      
-    public: /* ===== Signals ===== */
-      
-    private:/* ===== Events ===== */
-      
-    private:/* ===== Internals ===== */
-     
+      TimelineWidgetEmpty()
+        : TimelinePage{}
+        , content_{Gtk::ORIENTATION_VERTICAL}
+        , image_{Gtk::StockID{"track_enabled"}, Gtk::ICON_SIZE_LARGE_TOOLBAR}
+        {
+          messageText_.set_markup("To be or not to be that is the question...");
+          messageText_.set_max_width_chars(80);
+          messageText_.set_line_wrap();
+          messageText_.set_halign(Gtk::ALIGN_FILL);
+          messageText_.set_valign(Gtk::ALIGN_FILL);
+          quoteText_.set_markup ("<i>-- the great actor Joseph Tura</i>");
+          quoteText_.set_halign(Gtk::ALIGN_END);
+          quoteText_.set_valign(Gtk::ALIGN_START);
+          content_.pack_start (messageText_, Gtk::PACK_SHRINK);
+          content_.pack_start (quoteText_, Gtk::PACK_EXPAND_PADDING);
+          frame_.add(content_);
+          frame_.set_border_width(5);
+          frame_.set_halign(Gtk::ALIGN_END);
+          frame_.set_valign(Gtk::ALIGN_START);
+          
+          Gtk::Paned::add1 (image_);
+          Gtk::Paned::add2 (frame_);
+        }
     };
   
   
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 9d6c7b787..90e037ff7 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -83,5 +83,13 @@ namespace timeline {
   }
   
   
+  cuString
+  TimelineWidget::getLabel()  const
+  {
+    control_->getName();
+  }
+
+  
+  
   
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index 68581bc7b..9fcb9853b 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -85,10 +85,13 @@ namespace timeline {
     : public Gtk::Paned
     {
     public:
-      virtual ~TimelinePage() { }   ///< this is an interface
+      virtual ~TimelinePage() { }           ///< this is an interface
+      
+      virtual cuString getLabel()  const    =0;
+      
       
       TimelinePage()
-        : Gtk::Paned{Gtk::ORIENTATION_VERTICAL}
+        : Gtk::Paned{Gtk::ORIENTATION_HORIZONTAL}
         { }
     };
   
@@ -136,6 +139,9 @@ namespace timeline {
       /** allow for diff mutation (delegated to TimelineController */
       void buildMutator (lib::diff::TreeMutator::Handle);
       
+      cuString getLabel()  const override;
+      
+      
     public: /* ===== Signals ===== */
       
     private:/* ===== Events ===== */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 1a2cc5268..d705c39c1 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5243,18 +5243,18 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1231562526" MODIFIED="1538942179606" TEXT="Timeline Panel bauen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1231562526" MODIFIED="1539480803247" TEXT="Timeline Panel bauen">
 <arrowlink COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" STARTARROW="None" STARTINCLINATION="860;206;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1375216048" MODIFIED="1539141015314" TEXT="verankern im InteractonDirector">
-<arrowlink COLOR="#fec680" DESTINATION="ID_810032444" ENDARROW="Default" ENDINCLINATION="-451;-531;" ID="Arrow_ID_1378803021" STARTARROW="None" STARTINCLINATION="335;22;"/>
 <icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1538940061190" ID="ID_1375216048" MODIFIED="1539480786412" TEXT="verankern im InteractonDirector">
+<arrowlink COLOR="#fec680" DESTINATION="ID_810032444" ENDARROW="Default" ENDINCLINATION="-451;-531;" ID="Arrow_ID_1378803021" STARTARROW="None" STARTINCLINATION="335;22;"/>
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941158698" ID="ID_513093052" MODIFIED="1538941168250" TEXT="vorl&#xe4;ufiger Allokator">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538941158698" ID="ID_513093052" MODIFIED="1539480793247" TEXT="vorl&#xe4;ufiger Allokator">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538941253181" ID="ID_1144811315" MODIFIED="1538941261333" TEXT="multi-Tab-Anzeige">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1538941253181" ID="ID_1144811315" MODIFIED="1539480797114" TEXT="multi-Tab-Anzeige">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1325225528" MODIFIED="1538942777237" TEXT="Aktion re-Locate">
 <arrowlink COLOR="#fec680" DESTINATION="ID_1992201258" ENDARROW="Default" ENDINCLINATION="-784;-81;" ID="Arrow_ID_126634995" STARTARROW="None" STARTINCLINATION="651;0;"/>
@@ -16501,8 +16501,8 @@
 <node CREATED="1539394478891" ID="ID_1478223120" MODIFIED="1539394482926" TEXT="analog zum Error-Log"/>
 <node CREATED="1539394483610" ID="ID_847301374" MODIFIED="1539394505931" TEXT="vorl&#xe4;ufig: WindowLocator -&gt; PanelLoactor"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539394533967" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
-<icon BUILTIN="pencil"/>
+<node COLOR="#338800" CREATED="1539141076630" ID="ID_399959646" MODIFIED="1539480759403" TEXT="Auspr&#xe4;gung / Platzierung festlegen">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1539388923323" ID="ID_585499856" MODIFIED="1539389164184" TEXT="Frage: wann wird eine Timeline im GUI repr&#xe4;sentiert?">
 <arrowlink COLOR="#c8a1fe" DESTINATION="ID_430199880" ENDARROW="Default" ENDINCLINATION="-629;0;" ID="Arrow_ID_1293894659" STARTARROW="None" STARTINCLINATION="-505;56;"/>
 <node CREATED="1539389169498" ID="ID_1287197830" MODIFIED="1539389171373" TEXT="immer?"/>
@@ -16517,19 +16517,19 @@
 <node CREATED="1539389434086" ID="ID_1428746299" MODIFIED="1539389441601" TEXT="mu&#xdf; das Widget zerst&#xf6;ren"/>
 <node CREATED="1539389442477" ID="ID_803437655" MODIFIED="1539389449704" TEXT="TimelineGui wird inaktiv"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394521229" ID="ID_1457306650" MODIFIED="1539394699315" TEXT="den Rest &#xfc;berlassen wir dem TimelinePanel">
+<node COLOR="#338800" CREATED="1539394521229" ID="ID_1457306650" MODIFIED="1539480750133" TEXT="den Rest &#xfc;berlassen wir dem TimelinePanel">
 <arrowlink COLOR="#6bb2d4" DESTINATION="ID_50363803" ENDARROW="Default" ENDINCLINATION="381;11;" ID="Arrow_ID_1031630897" STARTARROW="None" STARTINCLINATION="-27;76;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1539141131742" ID="ID_1557130599" MODIFIED="1539394616681" TEXT="WLink baut TimelineWidget und verdrahtet Controller">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539394795397" TEXT="TimelineWidget installieren">
+<node COLOR="#338800" CREATED="1539141115961" ID="ID_50363803" MODIFIED="1539480747523" TEXT="TimelineWidget installieren">
 <arrowlink COLOR="#a678c8" DESTINATION="ID_1510868551" ENDARROW="Default" ENDINCLINATION="-587;-51;" ID="Arrow_ID_206932394" STARTARROW="None" STARTINCLINATION="-699;0;"/>
 <linktarget COLOR="#6bb2d4" DESTINATION="ID_50363803" ENDARROW="Default" ENDINCLINATION="381;11;" ID="Arrow_ID_1031630897" SOURCE="ID_1457306650" STARTARROW="None" STARTINCLINATION="-27;76;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#990000" CREATED="1539141189855" ID="ID_1121710933" MODIFIED="1539262827297" TEXT="Achtung: GUI lebt woanders...">
 <arrowlink COLOR="#732647" DESTINATION="ID_385121370" ENDARROW="Default" ENDINCLINATION="93;-27;" ID="Arrow_ID_384022851" STARTARROW="None" STARTINCLINATION="-2;36;"/>
@@ -19050,29 +19050,32 @@
 </node>
 <node CREATED="1538941704952" HGAP="12" ID="ID_429142366" MODIFIED="1538941723212" TEXT="konkrete Panels" VSHIFT="26">
 <icon BUILTIN="hourglass"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_712786561" MODIFIED="1538942194204" TEXT="Timeline-Panel">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_712786561" MODIFIED="1539480735537" TEXT="Timeline-Panel">
 <linktarget COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" SOURCE="ID_1231562526" STARTARROW="None" STARTINCLINATION="860;206;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1539394757429" ID="ID_376064530" MODIFIED="1539459391069" TEXT="wegr&#xe4;umen des Testcodes">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394765628" ID="ID_308731527" MODIFIED="1539394778891" TEXT="Widget-Struktur anlegen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539394765628" ID="ID_308731527" MODIFIED="1539480707741" TEXT="Widget-Struktur anlegen">
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1539459412979" ID="ID_1273129379" MODIFIED="1539459441106" TEXT="leere Platzhalter-Timeline">
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539459428928" ID="ID_1156538064" MODIFIED="1539459436200" TEXT="best&#xfc;cken">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539459428928" ID="ID_1156538064" MODIFIED="1539480704223" TEXT="best&#xfc;cken">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394779490" ID="ID_1710199928" MODIFIED="1539394784490" TEXT="Verwalten der Tabs">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394670721" ID="ID_1510868551" MODIFIED="1539394795397" TEXT="TimelineWidget &#xfc;bernehmen">
+<node COLOR="#338800" CREATED="1539394670721" ID="ID_1510868551" MODIFIED="1539480717469" TEXT="TimelineWidget &#xfc;bernehmen">
 <linktarget COLOR="#a678c8" DESTINATION="ID_1510868551" ENDARROW="Default" ENDINCLINATION="-587;-51;" ID="Arrow_ID_206932394" SOURCE="ID_50363803" STARTARROW="None" STARTINCLINATION="-699;0;"/>
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539394802679" ID="ID_1716564275" MODIFIED="1539394807727" TEXT="neuen Tab daf&#xfc;r belegen">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1539394802679" ID="ID_1716564275" MODIFIED="1539480719247" TEXT="neuen Tab daf&#xfc;r belegen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1539480719942" ID="ID_1686433179" MODIFIED="1539480728421" TEXT="ggfs Platzhalter wegwerfen">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>

From 77902d54a6c75f10d151976eafa99fbabb8d2b16 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 14 Oct 2018 17:24:13 +0200
Subject: [PATCH 153/178] DummySessionConnection: prepare schaffolding for
 fake-commands (see #1042)

To drive the timeline display in the UI ahead, the plan is to have
a faked action, which injects dummy population diff messages into the GUI,
resulting in the build-up of a typical simple session timeline
---
 .../session/dummy-session-connection.cpp      | 119 ++++++++++++++++--
 .../session/dummy-session-connection.hpp      |  31 ++++-
 wiki/thinkPad.ichthyo.mm                      |  39 ++++++
 3 files changed, 174 insertions(+), 15 deletions(-)

diff --git a/src/proc/mobject/session/dummy-session-connection.cpp b/src/proc/mobject/session/dummy-session-connection.cpp
index edff76ccd..fb6c3e313 100644
--- a/src/proc/mobject/session/dummy-session-connection.cpp
+++ b/src/proc/mobject/session/dummy-session-connection.cpp
@@ -29,7 +29,7 @@
  ** - some session content
  ** - commands to be invoked
  ** 
- ** @todo WIP as of 12/2016                         ///////////////////////TICKET #1042
+ ** @todo WIP as of 10/2018                         ///////////////////////TICKET #1042
  ** 
  ** @see DummySessionConnection_test
  ** 
@@ -39,11 +39,27 @@
 //#include "lib/symbol.hpp"
 //#include "include/logging.h"
 #include "proc/mobject/session/dummy-session-connection.hpp"
+#include "proc/control/command-def.hpp"
+#include "include/ui-protocol.hpp"
+#include "include/gui-notification-facade.h"
+#include "lib/diff/gen-node.hpp"
+//#include "lib/idi/entry-id.hpp"
+#include "lib/format-string.hpp"
+#include "lib/format-cout.hpp"
+//#include "lib/symbol.hpp"
+#include "lib/util.hpp"
 
 #include <string>
-#include <map>
+//#include <map>
 
-using std::map;
+using lib::diff::GenNode;
+//using util::cStr;
+using util::_Fmt;
+using std::string;
+
+#include <string>
+
+//using std::map;
 using std::string;
 
 using util::contains;
@@ -57,13 +73,11 @@ namespace session {
   
   } //(End)Implementation details....
   
-  DummySessionConnection::DummySessionConnection ( )
-    {
-    }
   
-  DummySessionConnection::~DummySessionConnection ( )
+  DummySessionConnection::~DummySessionConnection() { }
+  
+  DummySessionConnection::DummySessionConnection()
     {
-      // ////TODO Auto-generated destructor stub
     }
   
   
@@ -78,4 +92,91 @@ namespace session {
    */
   
   
-}}} // namespace proc::mobject::session
+}}// namespace proc::mobject::session
+
+namespace cmd {
+  
+  using lib::hash::LuidH;
+  using gui::ID;
+  using gui::NOTE_INFO;
+  using gui::NOTE_WARN;
+  using gui::NOTE_ERROR;
+//  using gui::NotifyLevel;
+//  using gui::MARK_expand;
+  using gui::GuiNotification;
+//  using util::isYes;
+  
+  
+  /* ============ dedicated Fake-Commands ============ */
+  
+  /** Populate the Timeline in the UI with a typical simple Dummy sequence.
+   *  This Proc-Layer command script fabricates a faked "population diff", which not
+   *  corresponds to any existing session data structure, but looks as if emanated while
+   *  loading current session state.
+   *  - one single Timeline
+   *  - just the root track
+   *  - two clips placed on that track
+   * @todo use this to establish basic Timeline display in the UI                          //////////////////TICKET #1014 : produce Dummy content to populate timeline
+   */
+COMMAND_DEFINITION (test_fake_injectSequence_1)
+  {
+    def.operation ([](string dummyID)
+                      {
+                        string message{_Fmt{"fabricate Sequence_1 (dummyID='%s')"} % dummyID};
+                        GuiNotification::facade().displayInfo (NOTE_INFO, message);
+                      })
+       .captureUndo ([](string dummyID) -> string
+                      {
+                        return _Fmt{"fabricateSequence_1('%s')"} % dummyID;
+                      })
+       .undoOperation ([](string, string memento)
+                      {
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO Dummy-Action: "+memento);
+                      });
+  };
+  
+  
+  /** Populate the Timeline in the UI with a rather complex Dummy sequence.
+   *  This command script fabricates a faked convoluted "population diff"...
+   * @todo use this to enact a complex layout structure in the Timeline-UI                 //////////////////TICKET #1014 : produce Dummy content to populate timeline
+   */
+COMMAND_DEFINITION (test_fake_injectSequence_2)
+  {
+    def.operation ([](string dummyID)
+                      {
+                        string message{_Fmt{"fabricate Sequence_2 (dummyID='%s')"} % dummyID};
+                        GuiNotification::facade().displayInfo (NOTE_INFO, message);
+                      })
+       .captureUndo ([](string dummyID) -> string
+                      {
+                        return _Fmt{"fabricateSequence_2('%s')"} % dummyID;
+                      })
+       .undoOperation ([](string, string memento)
+                      {
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO Dummy-Action: "+memento);
+                      });
+  };
+  
+  
+  /** Template for dummy-code....
+   * @todo use this to enact a complex layout structure in the Timeline-UI                 //////////////////TICKET #1042 : further the DummySessionConnection
+   */
+COMMAND_DEFINITION (test_fake_blubb)
+  {
+    def.operation ([](string dummyID)
+                      {
+                        string message{_Fmt{"fabricate gulp (dummyID='%s')"} % dummyID};
+                        GuiNotification::facade().displayInfo (NOTE_INFO, message);
+                      })
+       .captureUndo ([](string dummyID) -> string
+                      {
+                        return _Fmt{"fabricateGulp('%s')"} % dummyID;
+                      })
+       .undoOperation ([](string, string memento)
+                      {
+                        GuiNotification::facade().displayInfo (NOTE_WARN, "can not UNDO Dummy-Action: "+memento);
+                      });
+  };
+  
+  
+}} // namespace proc::mobject::session
diff --git a/src/proc/mobject/session/dummy-session-connection.hpp b/src/proc/mobject/session/dummy-session-connection.hpp
index f83d47741..521256c16 100644
--- a/src/proc/mobject/session/dummy-session-connection.hpp
+++ b/src/proc/mobject/session/dummy-session-connection.hpp
@@ -26,14 +26,14 @@
  ** parts of the application, which are to defined in the very attempt this placeholder
  ** is used for...
  ** - it can fake some session content
- ** - it may expose some fake command implementations
+ ** - it exposes some fake command implementations
  ** - and all this together with suitable diagnostic facilities
  ** 
  ** The plan is to push this helper along, as we proceed from the UI down towards the session.
  ** In the end, this placeholder service may be inserted into the session implementation proper,
  ** until we have the ability to load a persistent session from storage.
  ** 
- ** @todo WIP as of 12/2016         //////////////////////////////////////////////////////////////////////TICKET #1042
+ ** @todo WIP as of 10/2018         //////////////////////////////////////////////////////////////////////TICKET #1042
  ** 
  ** @see ui-bus.hpp
  ** @see dummy-session-connection.cpp implementation
@@ -48,9 +48,23 @@
 #include "lib/nocopy.hpp"
 #include "lib/util.hpp"
 
+#include "proc/control/command-setup.hpp"
+
 #include <string>
 
 namespace proc {
+namespace cmd {
+  
+  using control::Command;
+  using control::CommandDef;
+  using control::CommandSetup;
+  
+  /* ============ dedicated Fake-Commands ============ */
+  
+  extern CommandSetup test_fake_injectSequence_1;
+  extern CommandSetup test_fake_injectSequence_2;
+  
+}
 namespace mobject {
 namespace session {
   
@@ -58,10 +72,15 @@ namespace session {
   using std::string;
   
   /**
-   * Basic (abstracted) view of...
+   * Scaffolding to drive the evolution of the Lumiera application.
+   * @todo as of 2018, the most pressing problem is to establish the interplay between
+   *    GUI-Layer and Proc-Layer, so the software gains some tangible functionality...
+   * @note readily-available singleton to enact prototypical behaviour as appropriate.
    * 
-   * @see SomeSystem
    * @see DummySessionConnection_test
+   * @see gui::interact::InteractionDirector::buildMutator
+   * @see gui::interact::InteractionDirector::injectTimeline
+   * @see gui::timeline::TimelineController
    */
   class DummySessionConnection
     : util::NonCopyable
@@ -80,9 +99,9 @@ namespace session {
       static lib::Depend<DummySessionConnection> instance;
       
       
-      /* == X interface for == */
+      /* == do X  == */
 
-      /* == Adapter interface for == */
+      /* == forget Y == */
 
 #if false /////////////////////////////////////////////////////////////////////////////////////////////////////////////UNIMPLEMENTED :: TICKET #1042
       void setSolution (string const& solution = "")
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d705c39c1..018d4d292 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5242,6 +5242,45 @@
 <icon BUILTIN="hourglass"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525762357" ID="ID_401544840" MODIFIED="1539525773037" TEXT="Infrastruktur">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525774683" ID="ID_800878475" MODIFIED="1539525784706" TEXT="neuer Tab im TestControl">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525811238" ID="ID_257363214" MODIFIED="1539525816334" TEXT="Buttons / Commands">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525817565" ID="ID_609053758" MODIFIED="1539525932334" TEXT="Sequence-1">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539525949443" ID="ID_1576521954" MODIFIED="1539525960551" STYLE="fork" TEXT="einfacher Standardfall">
+<icon BUILTIN="info"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525933590" ID="ID_1481796996" MODIFIED="1539525937141" TEXT="Sequence-2">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1539525938045" ID="ID_940685408" MODIFIED="1539525947722" TEXT="komplex geschachtelt">
+<icon BUILTIN="info"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525972400" ID="ID_1975832820" MODIFIED="1539525980128" TEXT="Testdaten-Verwaltung">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525981879" ID="ID_1137936334" MODIFIED="1539527181544" TEXT="DummySessionConnection etablieren #1042">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525998157" ID="ID_1482744929" MODIFIED="1539526033216" TEXT="Diff-tee">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539526035136" ID="ID_1859459942" MODIFIED="1539526051278" TEXT="Daten-Dump">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539528791316" ID="ID_130694385" MODIFIED="1539528808379" TEXT="#1014 populate timeline">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539528779894" ID="ID_1661495339" MODIFIED="1539528806003" TEXT="#1016 GUI timeline layout structure">
+<icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1231562526" MODIFIED="1539480803247" TEXT="Timeline Panel bauen">
 <arrowlink COLOR="#fec680" DESTINATION="ID_712786561" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_433721169" STARTARROW="None" STARTINCLINATION="860;206;"/>

From de5f0b85d4e430e24208b16d01e99756dff75108 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 14 Oct 2018 23:55:00 +0200
Subject: [PATCH 154/178] DummySessionConnection: new tab in the TestControl
 dialog box

...to trigger the new fake-functionality
---
 src/gui/dialog/test-control.hpp | 84 +++++++++++++++++++++++++++++++--
 wiki/thinkPad.ichthyo.mm        | 11 +++--
 2 files changed, 86 insertions(+), 9 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index f9644b474..37631f597 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -43,12 +43,19 @@
 #include "gui/dialog/dialog.hpp"
 #include "gui/ctrl/bus-term.hpp"
 #include "gui/model/tangible.hpp"
-#include "proc/cmd.hpp"
 #include "include/ui-protocol.hpp"
+
+#include "proc/cmd.hpp"
 #include "include/gui-notification-facade.h"
-#include "lib/scoped-ptrvect.hpp"
+#include "proc/mobject/session/dummy-session-connection.hpp"
+
+#include "lib/test/test-helper.hpp"
 #include "lib/diff/gen-node.hpp"
+#include "lib/scoped-ptrvect.hpp"
+#include "lib/format-string.hpp"
+#include "lib/format-cout.hpp"
 #include "lib/nocopy.hpp"
+#include "lib/util.hpp"
 
 #include <utility>
 #include <string>
@@ -59,6 +66,8 @@ namespace dialog {
   using std::string;
   using std::forward;
   using lib::diff::GenNode;
+  using util::sanitise;
+  using util::_Fmt;
   
   
   /**
@@ -202,6 +211,7 @@ namespace dialog {
                                              "it will be passed down and sent back</i>"));
               trig_1_.set_use_underline();
               trig_1_.set_label ("_display text");
+              trig_1_.property_xalign() = 0;
               trig_1_.set_tooltip_markup (_("Trigger Proc-GUI <b>roundtrip</b>\n"
                                             "Proc invokes GuiNotification::displayInfo"));
               
@@ -223,6 +233,7 @@ namespace dialog {
               
               trig_4_.set_use_underline();
               trig_4_.set_label ("_mark");
+              trig_4_.property_xalign() = 0;
               trig_4_.set_tooltip_markup (_("trigger Proc-command, which in turn\n"
                                             "sends an <b>state mark</b> message, using\n"
                                             "the message action-ID from the combobox"));
@@ -249,9 +260,9 @@ namespace dialog {
               seg_2_.pack_start (trig_3_);
               seg_2_.pack_start (markParam_);
               
-              pack_start (content_);
-              pack_start (seg_1_);
-              pack_start (seg_2_);
+              pack_start (content_, Gtk::PACK_SHRINK);
+              pack_start (seg_1_,   Gtk::PACK_SHRINK);
+              pack_start (seg_2_,   Gtk::PACK_SHRINK);
               
               // define the action triggers...
               trig_1_.signal_clicked().connect(
@@ -266,6 +277,67 @@ namespace dialog {
         };
       
       
+      /**
+       * Ticket #1014 : populate the Timeline in the GUI.
+       * This page allows to send various diff messages up into the UI, to provide timeline content.
+       */
+      struct Page2 : Page
+        {
+          Gtk::Entry dummy_;
+          FrameBox part_1_{_("populate"), Gtk::ORIENTATION_HORIZONTAL},
+                   part_2_{_("modify content")};
+          Gtk::Button seq_1_, seq_2_;
+          Gtk::Button mut_1_;
+          
+          string
+          getDummyID()
+            {
+              string dummyID = sanitise (dummy_.get_text());
+              dummy_.set_text (dummyID);
+              return dummyID;
+            }
+          
+          
+          Page2 (Bus bus)
+            {
+              seq_1_.set_label ("Sequence 1");
+              seq_1_.set_tooltip_markup (_("Push <b>population diff</b> up into the UI\n"
+                                           "provides the typical simple default timeline structure"));
+              
+              seq_2_.set_label ("Sequence 2");
+              seq_2_.set_tooltip_markup (_("Push <b>population diff</b> up into the UI\n"
+                                           "provides a complex nested timeline structure"));
+              
+              dummy_.set_tooltip_markup (_("<i>dummy ID value</i>\n"
+                                           "used to build names in the generated content"));
+              dummy_.set_text (string{_Fmt{"d%s%02d"} % lib::test::randStr(2) % (1 + rand() % 99)});
+              dummy_.set_max_width_chars(12);
+              
+              part_1_.pack_start (seq_1_, Gtk::PACK_SHRINK);
+              part_1_.pack_start (seq_2_, Gtk::PACK_SHRINK);
+              part_1_.pack_start (dummy_, Gtk::PACK_EXPAND_WIDGET);
+              
+              
+              mut_1_.set_label ("move elements");
+              mut_1_.set_tooltip_markup (_("randomly manipulate temporal position of dummy elements"));
+              
+              part_2_.pack_start (mut_1_);
+              
+              pack_start (part_1_, Gtk::PACK_SHRINK);
+              pack_start (part_2_, Gtk::PACK_SHRINK);
+              
+              // define the action triggers...
+              seq_1_.signal_clicked().connect(
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_1, getDummyID())); });
+              seq_2_.signal_clicked().connect(
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_2, getDummyID())); });
+              
+              mut_1_.signal_clicked().connect(
+                          [&]{ cerr << "gelldaschaugst..." <<endl; });
+            }
+        };
+      
+      
       
     public:
       TestControl (ctrl::BusTerm& upLink, Gtk::Window& parent)
@@ -278,6 +350,8 @@ namespace dialog {
           
           // construct and wire the pages...
           notebook_.buildPage<Page1> (_("#1099"), uiBus_);
+          notebook_.buildPage<Page2> (_("Populate"), uiBus_);
+          notebook_.set_current_page(-1);
           
           show_all();
         }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 018d4d292..0c771ab8d 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5244,16 +5244,19 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525762357" ID="ID_401544840" MODIFIED="1539525773037" TEXT="Infrastruktur">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525774683" ID="ID_800878475" MODIFIED="1539525784706" TEXT="neuer Tab im TestControl">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539525774683" ID="ID_800878475" MODIFIED="1539554116052" TEXT="neuer Tab im TestControl">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525811238" ID="ID_257363214" MODIFIED="1539525816334" TEXT="Buttons / Commands">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525817565" ID="ID_609053758" MODIFIED="1539525932334" TEXT="Sequence-1">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539525817565" ID="ID_609053758" MODIFIED="1539554120981" TEXT="Sequence-1">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1539525949443" ID="ID_1576521954" MODIFIED="1539525960551" STYLE="fork" TEXT="einfacher Standardfall">
 <icon BUILTIN="info"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539554145649" ID="ID_1360223401" MODIFIED="1539554160367" TEXT="Diff anlegen">
+<icon BUILTIN="flag-yellow"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525933590" ID="ID_1481796996" MODIFIED="1539525937141" TEXT="Sequence-2">
 <icon BUILTIN="flag-yellow"/>

From 572bd38fec658a66b608a8d4406a8b0af304240c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 15 Oct 2018 00:54:10 +0200
Subject: [PATCH 155/178] DummySessionConnection: produce a simple population
 diff message

seems to work surprisingly well...
the diff application poceeds in the GUI up to the point
where the TrackPresenter need to be inserted into a two-fold display context
---
 .../session/dummy-session-connection.cpp      | 40 +++++++++++++++++--
 .../session/dummy-session-connection.hpp      | 14 ++++++-
 tests/gui/abstract-tangible-test.cpp          |  6 ++-
 tests/library/diff/mutation-message-test.cpp  |  2 +-
 wiki/thinkPad.ichthyo.mm                      | 16 +++++---
 5 files changed, 66 insertions(+), 12 deletions(-)

diff --git a/src/proc/mobject/session/dummy-session-connection.cpp b/src/proc/mobject/session/dummy-session-connection.cpp
index fb6c3e313..e9c677785 100644
--- a/src/proc/mobject/session/dummy-session-connection.cpp
+++ b/src/proc/mobject/session/dummy-session-connection.cpp
@@ -39,9 +39,12 @@
 //#include "lib/symbol.hpp"
 //#include "include/logging.h"
 #include "proc/mobject/session/dummy-session-connection.hpp"
+#include "proc/mobject/session/root.hpp"
 #include "proc/control/command-def.hpp"
 #include "include/ui-protocol.hpp"
 #include "include/gui-notification-facade.h"
+#include "lib/diff/tree-diff-application.hpp"
+#include "lib/diff/mutation-message.hpp"
 #include "lib/diff/gen-node.hpp"
 //#include "lib/idi/entry-id.hpp"
 #include "lib/format-string.hpp"
@@ -53,6 +56,8 @@
 //#include <map>
 
 using lib::diff::GenNode;
+using lib::diff::MakeRec;
+using lib::diff::MutationMessage;
 //using util::cStr;
 using util::_Fmt;
 using std::string;
@@ -71,6 +76,16 @@ namespace session {
   
   namespace { //Implementation details....
   
+    GenNode
+    emptyTimeline (string baseID)
+    {
+      return MakeRec()
+               .set(string{gui::ATTR_fork}
+                   ,MakeRec()
+                      .type(string{gui::TYPE_Fork})
+                   )
+             .genNode(baseID);
+    }
   } //(End)Implementation details....
   
   
@@ -86,10 +101,21 @@ namespace session {
   
   
   /**
-   * 
-   * @param id
-   * @return
+   * Build a population diff message to describe a specific session structure to add
    */
+  MutationMessage
+  DummySessionConnection::fabricateSeq1 (string baseID)
+  {
+    return MutationMessage{ ins (emptyTimeline (baseID))
+                          };
+  }
+  
+  
+  void
+  DummySessionConnection::applyCopy (MutationMessage const& diff)
+  {
+    TODO ("build internal diagnostic data structure, apply a copy of the message");
+  }
   
   
 }}// namespace proc::mobject::session
@@ -105,6 +131,10 @@ namespace cmd {
 //  using gui::MARK_expand;
   using gui::GuiNotification;
 //  using util::isYes;
+
+  namespace session = proc::mobject::session;
+  
+  using DummySess = session::DummySessionConnection;
   
   
   /* ============ dedicated Fake-Commands ============ */
@@ -124,6 +154,10 @@ COMMAND_DEFINITION (test_fake_injectSequence_1)
                       {
                         string message{_Fmt{"fabricate Sequence_1 (dummyID='%s')"} % dummyID};
                         GuiNotification::facade().displayInfo (NOTE_INFO, message);
+                        auto popuDiff = DummySess::instance().fabricateSeq1 (dummyID);
+                        DummySess::instance().applyCopy (popuDiff);
+                        auto rootID = session::Root::getID();
+                        GuiNotification::facade().mutate (rootID, move(popuDiff));
                       })
        .captureUndo ([](string dummyID) -> string
                       {
diff --git a/src/proc/mobject/session/dummy-session-connection.hpp b/src/proc/mobject/session/dummy-session-connection.hpp
index 521256c16..745785420 100644
--- a/src/proc/mobject/session/dummy-session-connection.hpp
+++ b/src/proc/mobject/session/dummy-session-connection.hpp
@@ -48,10 +48,15 @@
 #include "lib/nocopy.hpp"
 #include "lib/util.hpp"
 
+#include "lib/diff/tree-diff.hpp"
 #include "proc/control/command-setup.hpp"
 
 #include <string>
 
+namespace lib {
+namespace diff{
+  class MutationMessage;
+}}
 namespace proc {
 namespace cmd {
   
@@ -70,6 +75,7 @@ namespace session {
   
 //using util::isnil;
   using std::string;
+  using lib::diff::MutationMessage;
   
   /**
    * Scaffolding to drive the evolution of the Lumiera application.
@@ -83,7 +89,8 @@ namespace session {
    * @see gui::timeline::TimelineController
    */
   class DummySessionConnection
-    : util::NonCopyable
+    : lib::diff::TreeDiffLanguage
+    , util::NonCopyable
     {
       string nothing_;
 
@@ -102,6 +109,11 @@ namespace session {
       /* == do X  == */
 
       /* == forget Y == */
+      
+      MutationMessage fabricateSeq1 (string baseID);
+      
+      void applyCopy (MutationMessage const&);
+
 
 #if false /////////////////////////////////////////////////////////////////////////////////////////////////////////////UNIMPLEMENTED :: TICKET #1042
       void setSolution (string const& solution = "")
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index c9ffc776a..2bc76eb68 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -641,8 +641,10 @@ namespace test {
        * For this to work, the receiver needs to create a custom _diff binding_.
        * Thus, each subclass of Tangible has to implement the virtual function
        * Tangible::buildMutator() and hook up those internal structures, which
-       * are exposed to changes via diff message. Note especially how child
-       * UI elements are added this way, to populate the contents of the UI.
+       * are exposed to changes via diff message. This is what we then call a
+       * "diff binding" (and MockElement is already outfitted this way). Note
+       * especially how child UI elements can be added recursively, allowing
+       * gradually to populate the contents of the UI.
        * 
        * The diff itself is an iterable sequence of _diff verbs_.
        * Typically, such a diff is generated as the result of some operation
diff --git a/tests/library/diff/mutation-message-test.cpp b/tests/library/diff/mutation-message-test.cpp
index 6cd9a59cb..3bad00977 100644
--- a/tests/library/diff/mutation-message-test.cpp
+++ b/tests/library/diff/mutation-message-test.cpp
@@ -1,5 +1,5 @@
 /*
-  MutationMessage(Test)  -  demonstrate the basics of tree diff representation
+  MutationMessage(Test)  -  verify diff mutation message container
 
   Copyright (C)         Lumiera.org
     2017,               Hermann Vosseler <Ichthyostega@web.de>
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 0c771ab8d..7d9f02839 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5254,10 +5254,16 @@
 <node CREATED="1539525949443" ID="ID_1576521954" MODIFIED="1539525960551" STYLE="fork" TEXT="einfacher Standardfall">
 <icon BUILTIN="info"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539554145649" ID="ID_1360223401" MODIFIED="1539554160367" TEXT="Diff anlegen">
+<node COLOR="#338800" CREATED="1539554145649" ID="ID_1360223401" MODIFIED="1539564554201" TEXT="Diff anlegen">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1539564584429" ID="ID_1716609826" MODIFIED="1539564587445" TEXT="Root-Track">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539564589548" ID="ID_1561391207" MODIFIED="1539564596852" TEXT="zwei Clips darin">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525933590" ID="ID_1481796996" MODIFIED="1539525937141" TEXT="Sequence-2">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1539525938045" ID="ID_940685408" MODIFIED="1539525947722" TEXT="komplex geschachtelt">
@@ -5267,11 +5273,11 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525972400" ID="ID_1975832820" MODIFIED="1539525980128" TEXT="Testdaten-Verwaltung">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525981879" ID="ID_1137936334" MODIFIED="1539527181544" TEXT="DummySessionConnection etablieren #1042">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1539525981879" ID="ID_1137936334" MODIFIED="1539564569271" TEXT="DummySessionConnection etablieren #1042">
+<icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525998157" ID="ID_1482744929" MODIFIED="1539526033216" TEXT="Diff-tee">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1539525998157" ID="ID_1482744929" MODIFIED="1539564563690" TEXT="Diff-tee">
+<icon BUILTIN="flag-pink"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539526035136" ID="ID_1859459942" MODIFIED="1539526051278" TEXT="Daten-Dump">
 <icon BUILTIN="flag-yellow"/>

From 7e562a4c669d9a3e6f50c7fff1b1aebdebc80768 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 19 Oct 2018 16:19:24 +0200
Subject: [PATCH 156/178] upgrade TiddlyWiki to v2.9.1

Basically, TiddlyWiki "classic" is in maintenance mode, but it is still supported.
This minor upgarde brings some bugfixes, most notably a minor adjustment to work well
with the new Firefox Quantum, which switched to the more restricted WebExtensions
and discontinued support for the old-style XUL based plug-ins.

This bold move by the firefox project placed a lot of well established, mature
extensions on the brink of extinction. Especially TiddlyWiki has gradually lost
its original appeal of a low-ceremony guerrilla wiki. However, it is still
a sweet little gem for experienced users, albeit a bit brittle to use.

You are now either
- forced to enter the target destination on each save
- or forced to arrange tiddly wiki to reside within your default download folder
  and use a firefox plug-in to automate the save process (I use at the moment
  https://addons.mozilla.org/en-GB/firefox/addon/file-backups/
- or forced to install a 100 MB blurb of java-script based local server
  to run TiddlyWikiDesktop

The bitter irony of the situation is, what still works more-or-less painless
is to place your TiddlyWiki into the cloud. Yikes, here we go.
---
 wiki/empty.html        | 55 +++++++++++++++++++++++++-----------------
 wiki/renderengine.html | 53 ++++++++++++++++++++++++----------------
 2 files changed, 65 insertions(+), 43 deletions(-)

diff --git a/wiki/empty.html b/wiki/empty.html
index edfdd9076..e26bb319c 100644
--- a/wiki/empty.html
+++ b/wiki/empty.html
@@ -3,7 +3,7 @@
 <head>
 <script id="versionArea" type="text/javascript">
 //<![CDATA[
-var version = {title: "TiddlyWiki", major: 2, minor: 8, revision: 1, date: new Date("June 23, 2013"), extensions: {}};
+var version = {title: "TiddlyWiki", major: 2, minor: 9, revision: 1, date: new Date("April 12, 2018"), extensions: {}};
 
 //]]>
 </script>
@@ -46,7 +46,7 @@ DAMAGE.
 <!--}}}-->
 
 <!--PRE-HEAD-END-->
-<title> Empty TiddlyWiki 2.8.1 - a local web scrapbook in a single HTML page </title>
+<title>TiddlyWiki 2.9.1 (classic)</title>
 <style id="styleArea" type="text/css">
 #saveTest {display:none;}
 #messageArea {display:none;}
@@ -453,7 +453,7 @@ table.listView th, table.listView td, table.listView tr {padding:0 3px 0 3px;}
 .viewer code {font-size:1.2em; line-height:1.4em;}
 
 .editor {font-size:1.1em;}
-.editor input, .editor textarea {display:block; width:100%; font:inherit;}
+.editor input, .editor textarea {display:block; width:100%; box-sizing: border-box; font:inherit;}
 .editorFooter {padding:0.25em 0; font-size:.9em;}
 .editorFooter .button {padding-top:0; padding-bottom:0;}
 
@@ -602,6 +602,7 @@ config.options = {
 	chkInsertTabs: false,
 	chkUsePreForStorage: true, // Whether to use <pre> format for storage
 	chkDisplayInstrumentation: false,
+	chkRemoveExtraMarkers: false, // #162
 	txtBackupFolder: "",
 	txtEditorFocus: "text",
 	txtMainTab: "tabTimeline",
@@ -718,7 +719,7 @@ if(!((new RegExp("[\u0150\u0170]","g")).test("\u0150"))) {
 }
 config.textPrimitives.sliceSeparator = "::";
 config.textPrimitives.sectionSeparator = "##";
-config.textPrimitives.urlPattern = "(?:file|http|https|mailto|ftp|irc|news|data):[^\\s'\"]+(?:/|\\b)";
+config.textPrimitives.urlPattern = "(?:file|http|https|mailto|ftp|irc|news|data):[^\\s'\"]+(?:/|\\b|\\[|\\])"; // #132
 config.textPrimitives.unWikiLink = "~";
 config.textPrimitives.wikiLink = "(?:(?:" + config.textPrimitives.upperLetter + "+" +
 	config.textPrimitives.lowerLetter + "+" +
@@ -765,7 +766,7 @@ config.shadowTiddlers = {
 	AdvancedOptions: '<<options>>',
 	PluginManager: '<<plugins>>',
 	SystemSettings: '',
-	ToolbarCommands: '|~ViewToolbar|closeTiddler closeOthers +editTiddler > fields syncing permalink references jump|\n|~EditToolbar|+saveTiddler -cancelTiddler deleteTiddler|',
+	ToolbarCommands: '|~ViewToolbar|closeTiddler closeOthers +editTiddler > fields permalink references jump|\n|~EditToolbar|+saveTiddler -cancelTiddler deleteTiddler|', // #160
 	WindowTitle: '<<tiddler SiteTitle>> - <<tiddler SiteSubtitle>>'
 };
 
@@ -833,6 +834,7 @@ merge(config.optionsDesc,{
 	chkForceMinorUpdate: "Don't update modifier username and date when editing tiddlers",
 	chkConfirmDelete: "Require confirmation before deleting tiddlers",
 	chkInsertTabs: "Use the tab key to insert tab characters instead of moving between fields",
+	chkRemoveExtraMarkers: "Replace unused transclusion markers with blanks", // #162
 	txtBackupFolder: "Name of folder to use for backups",
 	txtMaxEditRows: "Maximum number of rows in edit boxes",
 	txtTheme: "Name of the theme to use",
@@ -2673,7 +2675,7 @@ config.macros.tiddler.handler = function(place,macroName,params,wikifier,paramSt
 		refresh: "content", tiddler: tiddlerName
 	});
 	if(args!==undefined)
-		wrapper.setAttribute("args","[["+args.join("]] [[")+"]]");
+		wrapper.macroArgs=args; // #154
 	this.transclude(wrapper,tiddlerName,args);
 };
 
@@ -2695,6 +2697,12 @@ config.macros.tiddler.transclude = function(wrapper,tiddlerName,args)
 			var placeholderRE = new RegExp("\\$" + (i + 1),"mg");
 			text = text.replace(placeholderRE,args[i]);
 		}
+		// #162 start
+		if (n && config.options.chkRemoveExtraMarkers) for(i=n; i<9; i++) {
+			var placeholderRE = new RegExp("\\$" + (i + 1),"mg");
+			text = text.replace(placeholderRE,"");
+		}
+		// #162 end
 		config.macros.tiddler.renderText(wrapper,text,tiddlerName);
 	} finally {
 		stack.pop();
@@ -3073,7 +3081,7 @@ config.macros.newTiddler.onClickNewTiddler = function()
 	var customFields = this.getAttribute("customFields");
 	if(!customFields && !store.isShadowTiddler(title))
 		customFields = String.encodeHashMap(config.defaultCustomFields);
-	story.displayTiddler(null,title,template,false,null,null);
+	story.displayTiddler(this,title,template,false,null,null); // #161
 	var tiddlerElem = story.getTiddler(title);
 	if(customFields)
 		story.addCustomFields(tiddlerElem,customFields);
@@ -3894,7 +3902,7 @@ TiddlyWiki.prototype.getRecursiveTiddlerText = function(title,defaultText,depth)
 };
 
 //TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]+)[\t\x20]*$)|(?:^\|([\'\/]{0,2})~?([\.\w]+)\:?\4\|[\t\x20]*([^\n]+)[\t\x20]*\|$)/gm;
-TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]*)[\t\x20]*$)|(?:^\|([\'\/]{0,2})~?([\.\w]+)\:?\4\|[\t\x20]*([^\|\n]*)[\t\x20]*\|$)/gm;
+TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]+)[\t\x20]*$)|(?:^\|\x20?([\'\/]{0,2})~?([^\|\s\:\~\'\/]|(?:[^\|\s~\'\/][^\|\n\f\r]*[^\|\s\:\'\/]))\:?\4[\x20\t]*\|[\t\x20]*([^\n\t\x20](?:[^\n]*[^\n\t\x20])?)[\t\x20]*\|$)/gm; // #112
 // @internal
 TiddlyWiki.prototype.calcAllSlices = function(title)
 {
@@ -4385,11 +4393,11 @@ config.filters = {
 };
 
 // Filter a list of tiddlers
-TiddlyWiki.prototype.filterTiddlers = function(filter)
+TiddlyWiki.prototype.filterTiddlers = function(filter,results)
 {
 	var re = /([^\s\[\]]+)|(?:\[([ \w\.\-]+)\[([^\]]+)\]\])|(?:\[\[([^\]]+)\]\])/mg;
 
-	var results = [];
+	results = results || [];
 	if(filter) {
 		var match = re.exec(filter);
 		while(match) {
@@ -4763,7 +4771,7 @@ Story.prototype.refreshTiddler = function(title,template,force,customFields,defa
 					var tags = [];
 					tiddler.set(title,store.getTiddlerText(title),config.views.wikified.shadowModifier,version.date,tags,version.date);
 				} else {
-					var text = template=="EditTemplate" ?
+					var text = template==config.tiddlerTemplates[DEFAULT_EDIT_TEMPLATE] ? // #166
 								config.views.editor.defaultText.format([title]) :
 								config.views.wikified.defaultText.format([title]);
 					text = defaultText || text;
@@ -6056,6 +6064,7 @@ config.refreshers = {
 
 	tiddler: function(e,changeList)
 		{
+		if (startingUp) return true; // #147
 		var title = e.getAttribute("tiddler");
 		var template = e.getAttribute("template");
 		if(changeList && (changeList.indexOf && changeList.indexOf(title) != -1) && !story.isDirty(title))
@@ -6069,7 +6078,7 @@ config.refreshers = {
 		{
 		var title = e.getAttribute("tiddler");
 		var force = e.getAttribute("force");
-		var args = e.getAttribute("args");
+		var args = e.macroArgs; // #154
 		if(force != null || changeList == null || (changeList.indexOf && changeList.indexOf(title) != -1)) {
 			jQuery(e).empty();
 			config.macros.tiddler.transclude(e,title,args);
@@ -6268,9 +6277,12 @@ function getCookies()
 function loadCookies()
 {
 	var i,cookies = getCookies();
-	if(cookies['TiddlyWiki']) {
+	if(cookies['TiddlyWikiClassicOptions']) // TW291 and later //#159
+		cookies = cookies['TiddlyWikiClassicOptions'].replace(/%22/g,'"').replace(/%25/g,'%').decodeHashMap(); // #159
+	else if(cookies['TiddlyWikiOptions']) // TW290 beta //#159
+		cookies = cookies['TiddlyWikiOptions'].replace(/%25/g,'%').decodeHashMap(); // #159
+	else if(cookies['TiddlyWiki']) // TW281 and earlier
 		cookies = cookies['TiddlyWiki'].decodeHashMap();
-	}
 	for(i in cookies) {
 		if(config.optionsSource[i] != 'setting') {
 			setOption(i,cookies[i]);
@@ -6324,7 +6336,10 @@ function saveCookie(name)
 		value = value == null ? 'false' : value;
 		cookies[key] = value;
 	}
-	document.cookie = 'TiddlyWiki=' + String.encodeHashMap(cookies) + '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
+	// TW291 and later (#159)
+	document.cookie = 'TiddlyWikiClassicOptions='
+		+ String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+		+ '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
 	cookies = getCookies();
 	var c;
 	for(c in cookies) {
@@ -6639,7 +6654,7 @@ function recreateOriginal()
 	content=content.replace(/<div id="saveTest">savetest<\/div>/,'<div id="saveTest"></div>');
 	content=content.replace(/script><applet [^\>]*><\/applet>/g,'script>');
 	content=content.replace(/><head>/,'>\n<head>');
-	content=content.replace(/\n\n<\/body><\/html>$/,'</body>\n</html>\n');
+	content=content.replace(/\n\n<\/body><\/html>$/,'</'+'body>\n</'+'html>\n'); // #170
 	content=content.replace(/(<(meta) [^\>]*[^\/])>/g,'$1 />');
 	content=content.replace(/<noscript>[^\<]*<\/noscript>/,
 		function(m){return m.replace(/&lt;/g,'<').replace(/&gt;/g,'>');});
@@ -7043,7 +7058,7 @@ function javaDebugInformation () {
 	var applet = document.applets['TiddlySaver'];
 	var what = [
 		["Java Version", applet.getJavaVersion],
-		["Last Exception", applet.getLastErrorMessage],
+		["Last Exception", applet.getLastErrorMsg], // #156
 		["Last Exception Stack Trace", applet.getLastErrorStackTrace],
 		["System Properties", applet.getSystemProperties] ];
 
@@ -8714,11 +8729,7 @@ String.prototype.format = function(s)
 // Escape any special RegExp characters with that character preceded by a backslash
 String.prototype.escapeRegExp = function()
 {
-	var s = "\\^$*+?()=!|,{}[].";
-	var t,c = this;
-	for(t=0; t<s.length; t++)
-		c = c.replace(new RegExp("\\" + s.substr(t,1),"g"),"\\" + s.substr(t,1));
-	return c;
+    return this.replace(/[\-\/\\\^\$\*\+\?\.\(\)\|\[\]\{\}]/g, '\\$&'); // #157
 };
 
 // Convert "\" to "\s", newlines to "\n" (and remove carriage returns)
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 60b191eb7..8a803c292 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -3,7 +3,7 @@
 <head>
 <script id="versionArea" type="text/javascript">
 //<![CDATA[
-var version = {title: "TiddlyWiki", major: 2, minor: 8, revision: 1, date: new Date("June 23, 2013"), extensions: {}};
+var version = {title: "TiddlyWiki", major: 2, minor: 9, revision: 1, date: new Date("April 12, 2018"), extensions: {}};
 
 //]]>
 </script>
@@ -454,7 +454,7 @@ table.listView th, table.listView td, table.listView tr {padding:0 3px 0 3px;}
 .viewer code {font-size:1.2em; line-height:1.4em;}
 
 .editor {font-size:1.1em;}
-.editor input, .editor textarea {display:block; width:100%; font:inherit;}
+.editor input, .editor textarea {display:block; width:100%; box-sizing: border-box; font:inherit;}
 .editorFooter {padding:0.25em 0; font-size:.9em;}
 .editorFooter .button {padding-top:0; padding-bottom:0;}
 
@@ -10347,6 +10347,7 @@ config.options = {
 	chkInsertTabs: false,
 	chkUsePreForStorage: true, // Whether to use <pre> format for storage
 	chkDisplayInstrumentation: false,
+	chkRemoveExtraMarkers: false, // #162
 	txtBackupFolder: "",
 	txtEditorFocus: "text",
 	txtMainTab: "tabTimeline",
@@ -10463,7 +10464,7 @@ if(!((new RegExp("[\u0150\u0170]","g")).test("\u0150"))) {
 }
 config.textPrimitives.sliceSeparator = "::";
 config.textPrimitives.sectionSeparator = "##";
-config.textPrimitives.urlPattern = "(?:file|http|https|mailto|ftp|irc|news|data):[^\\s'\"]+(?:/|\\b)";
+config.textPrimitives.urlPattern = "(?:file|http|https|mailto|ftp|irc|news|data):[^\\s'\"]+(?:/|\\b|\\[|\\])"; // #132
 config.textPrimitives.unWikiLink = "~";
 config.textPrimitives.wikiLink = "(?:(?:" + config.textPrimitives.upperLetter + "+" +
 	config.textPrimitives.lowerLetter + "+" +
@@ -10510,7 +10511,7 @@ config.shadowTiddlers = {
 	AdvancedOptions: '<<options>>',
 	PluginManager: '<<plugins>>',
 	SystemSettings: '',
-	ToolbarCommands: '|~ViewToolbar|closeTiddler closeOthers +editTiddler > fields syncing permalink references jump|\n|~EditToolbar|+saveTiddler -cancelTiddler deleteTiddler|',
+	ToolbarCommands: '|~ViewToolbar|closeTiddler closeOthers +editTiddler > fields permalink references jump|\n|~EditToolbar|+saveTiddler -cancelTiddler deleteTiddler|', // #160
 	WindowTitle: '<<tiddler SiteTitle>> - <<tiddler SiteSubtitle>>'
 };
 
@@ -10578,6 +10579,7 @@ merge(config.optionsDesc,{
 	chkForceMinorUpdate: "Don't update modifier username and date when editing tiddlers",
 	chkConfirmDelete: "Require confirmation before deleting tiddlers",
 	chkInsertTabs: "Use the tab key to insert tab characters instead of moving between fields",
+	chkRemoveExtraMarkers: "Replace unused transclusion markers with blanks", // #162
 	txtBackupFolder: "Name of folder to use for backups",
 	txtMaxEditRows: "Maximum number of rows in edit boxes",
 	txtTheme: "Name of the theme to use",
@@ -12418,7 +12420,7 @@ config.macros.tiddler.handler = function(place,macroName,params,wikifier,paramSt
 		refresh: "content", tiddler: tiddlerName
 	});
 	if(args!==undefined)
-		wrapper.setAttribute("args","[["+args.join("]] [[")+"]]");
+		wrapper.macroArgs=args; // #154
 	this.transclude(wrapper,tiddlerName,args);
 };
 
@@ -12440,6 +12442,12 @@ config.macros.tiddler.transclude = function(wrapper,tiddlerName,args)
 			var placeholderRE = new RegExp("\\$" + (i + 1),"mg");
 			text = text.replace(placeholderRE,args[i]);
 		}
+		// #162 start
+		if (n && config.options.chkRemoveExtraMarkers) for(i=n; i<9; i++) {
+			var placeholderRE = new RegExp("\\$" + (i + 1),"mg");
+			text = text.replace(placeholderRE,"");
+		}
+		// #162 end
 		config.macros.tiddler.renderText(wrapper,text,tiddlerName);
 	} finally {
 		stack.pop();
@@ -12818,7 +12826,7 @@ config.macros.newTiddler.onClickNewTiddler = function()
 	var customFields = this.getAttribute("customFields");
 	if(!customFields && !store.isShadowTiddler(title))
 		customFields = String.encodeHashMap(config.defaultCustomFields);
-	story.displayTiddler(null,title,template,false,null,null);
+	story.displayTiddler(this,title,template,false,null,null); // #161
 	var tiddlerElem = story.getTiddler(title);
 	if(customFields)
 		story.addCustomFields(tiddlerElem,customFields);
@@ -13639,7 +13647,7 @@ TiddlyWiki.prototype.getRecursiveTiddlerText = function(title,defaultText,depth)
 };
 
 //TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]+)[\t\x20]*$)|(?:^\|([\'\/]{0,2})~?([\.\w]+)\:?\4\|[\t\x20]*([^\n]+)[\t\x20]*\|$)/gm;
-TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]*)[\t\x20]*$)|(?:^\|([\'\/]{0,2})~?([\.\w]+)\:?\4\|[\t\x20]*([^\|\n]*)[\t\x20]*\|$)/gm;
+TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1[\t\x20]*([^\n]+)[\t\x20]*$)|(?:^\|\x20?([\'\/]{0,2})~?([^\|\s\:\~\'\/]|(?:[^\|\s~\'\/][^\|\n\f\r]*[^\|\s\:\'\/]))\:?\4[\x20\t]*\|[\t\x20]*([^\n\t\x20](?:[^\n]*[^\n\t\x20])?)[\t\x20]*\|$)/gm; // #112
 // @internal
 TiddlyWiki.prototype.calcAllSlices = function(title)
 {
@@ -14130,11 +14138,11 @@ config.filters = {
 };
 
 // Filter a list of tiddlers
-TiddlyWiki.prototype.filterTiddlers = function(filter)
+TiddlyWiki.prototype.filterTiddlers = function(filter,results)
 {
 	var re = /([^\s\[\]]+)|(?:\[([ \w\.\-]+)\[([^\]]+)\]\])|(?:\[\[([^\]]+)\]\])/mg;
 
-	var results = [];
+	results = results || [];
 	if(filter) {
 		var match = re.exec(filter);
 		while(match) {
@@ -14508,7 +14516,7 @@ Story.prototype.refreshTiddler = function(title,template,force,customFields,defa
 					var tags = [];
 					tiddler.set(title,store.getTiddlerText(title),config.views.wikified.shadowModifier,version.date,tags,version.date);
 				} else {
-					var text = template=="EditTemplate" ?
+					var text = template==config.tiddlerTemplates[DEFAULT_EDIT_TEMPLATE] ? // #166
 								config.views.editor.defaultText.format([title]) :
 								config.views.wikified.defaultText.format([title]);
 					text = defaultText || text;
@@ -15801,6 +15809,7 @@ config.refreshers = {
 
 	tiddler: function(e,changeList)
 		{
+		if (startingUp) return true; // #147
 		var title = e.getAttribute("tiddler");
 		var template = e.getAttribute("template");
 		if(changeList && (changeList.indexOf && changeList.indexOf(title) != -1) && !story.isDirty(title))
@@ -15814,7 +15823,7 @@ config.refreshers = {
 		{
 		var title = e.getAttribute("tiddler");
 		var force = e.getAttribute("force");
-		var args = e.getAttribute("args");
+		var args = e.macroArgs; // #154
 		if(force != null || changeList == null || (changeList.indexOf && changeList.indexOf(title) != -1)) {
 			jQuery(e).empty();
 			config.macros.tiddler.transclude(e,title,args);
@@ -16013,9 +16022,12 @@ function getCookies()
 function loadCookies()
 {
 	var i,cookies = getCookies();
-	if(cookies['TiddlyWiki']) {
+	if(cookies['TiddlyWikiClassicOptions']) // TW291 and later //#159
+		cookies = cookies['TiddlyWikiClassicOptions'].replace(/%22/g,'"').replace(/%25/g,'%').decodeHashMap(); // #159
+	else if(cookies['TiddlyWikiOptions']) // TW290 beta //#159
+		cookies = cookies['TiddlyWikiOptions'].replace(/%25/g,'%').decodeHashMap(); // #159
+	else if(cookies['TiddlyWiki']) // TW281 and earlier
 		cookies = cookies['TiddlyWiki'].decodeHashMap();
-	}
 	for(i in cookies) {
 		if(config.optionsSource[i] != 'setting') {
 			setOption(i,cookies[i]);
@@ -16069,7 +16081,10 @@ function saveCookie(name)
 		value = value == null ? 'false' : value;
 		cookies[key] = value;
 	}
-	document.cookie = 'TiddlyWiki=' + String.encodeHashMap(cookies) + '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
+	// TW291 and later (#159)
+	document.cookie = 'TiddlyWikiClassicOptions='
+		+ String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+		+ '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
 	cookies = getCookies();
 	var c;
 	for(c in cookies) {
@@ -16384,7 +16399,7 @@ function recreateOriginal()
 	content=content.replace(/<div id="saveTest">savetest<\/div>/,'<div id="saveTest"></div>');
 	content=content.replace(/script><applet [^\>]*><\/applet>/g,'script>');
 	content=content.replace(/><head>/,'>\n<head>');
-	content=content.replace(/\n\n<\/body><\/html>$/,'</body>\n</html>\n');
+	content=content.replace(/\n\n<\/body><\/html>$/,'</'+'body>\n</'+'html>\n'); // #170
 	content=content.replace(/(<(meta) [^\>]*[^\/])>/g,'$1 />');
 	content=content.replace(/<noscript>[^\<]*<\/noscript>/,
 		function(m){return m.replace(/&lt;/g,'<').replace(/&gt;/g,'>');});
@@ -16788,7 +16803,7 @@ function javaDebugInformation () {
 	var applet = document.applets['TiddlySaver'];
 	var what = [
 		["Java Version", applet.getJavaVersion],
-		["Last Exception", applet.getLastErrorMessage],
+		["Last Exception", applet.getLastErrorMsg], // #156
 		["Last Exception Stack Trace", applet.getLastErrorStackTrace],
 		["System Properties", applet.getSystemProperties] ];
 
@@ -18459,11 +18474,7 @@ String.prototype.format = function(s)
 // Escape any special RegExp characters with that character preceded by a backslash
 String.prototype.escapeRegExp = function()
 {
-	var s = "\\^$*+?()=!|,{}[].";
-	var t,c = this;
-	for(t=0; t<s.length; t++)
-		c = c.replace(new RegExp("\\" + s.substr(t,1),"g"),"\\" + s.substr(t,1));
-	return c;
+    return this.replace(/[\-\/\\\^\$\*\+\?\.\(\)\|\[\]\{\}]/g, '\\$&'); // #157
 };
 
 // Convert "\" to "\s", newlines to "\n" (and remove carriage returns)

From 72974f2548755ff9d1ee2458c64e780164a18685 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 20 Oct 2018 02:07:10 +0200
Subject: [PATCH 157/178] TiddlyWiki: bugfix for Firefox Quantum -- use HTML5
 web storage instead of a Cookie

Firefox Quantum adopted the idiotic behaviour of Chrome and does no longer
retrieve Cookies for pages read from local file system. It stores the Cookie
data into its local cookies.sqlite, but it does not retrieve it anymore.
For aledged "security reasons", however it happily retrieves HTML 5 web storage

Since TiddlyWiki classic just accesses the document.cookie at 3 points,
it is easy to patch around that problem. Just check, if we're using a modern
browser with support for HTML5 web storage and branch accordingly.
---
 wiki/empty.html        | 32 ++++++++++++++++++++++++++++----
 wiki/renderengine.html | 32 ++++++++++++++++++++++++++++----
 2 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/wiki/empty.html b/wiki/empty.html
index e26bb319c..21452b8f8 100644
--- a/wiki/empty.html
+++ b/wiki/empty.html
@@ -6261,6 +6261,16 @@ var loadOptionsCookie = loadOptions;
 
 function getCookies()
 {
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		var storedData = {};
+		for (var n = window.localStorage.length || 0; --n >= 0; ) {
+			var key = window.localStorage.key(n);
+			storedData[key] = window.localStorage[key];
+		}
+		return storedData;
+	}
+	// else: use old-style cookie storage
 	var cookieList = document.cookie.split(';');
 	var i,cookies = {};
 	for(i=0; i<cookieList.length; i++) {
@@ -6325,7 +6335,13 @@ var saveOptionCookie = saveOption;
 
 function removeCookie(name)
 {
-	document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 UTC; path=/;';
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		window.localStorage.removeItem(name);
+	} else {
+		// use old-style cookie storage
+		document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 UTC; path=/;';
+	}
 }
 
 function saveCookie(name)
@@ -6336,10 +6352,18 @@ function saveCookie(name)
 		value = value == null ? 'false' : value;
 		cookies[key] = value;
 	}
-	// TW291 and later (#159)
-	document.cookie = 'TiddlyWikiClassicOptions='
-		+ String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+	var encodedCookie = String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+	// Modern browsers (e.g. Firefox Quantum) do not support Cookies for file:/// anymore
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		window.localStorage.TiddlyWikiClassicOptions = encodedCookie;
+	} else {
+		// use old-style cookie storage
+		// TW291 and later (#159)
+		document.cookie = 'TiddlyWikiClassicOptions='
+		+ encodedCookie
 		+ '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
+	}
 	cookies = getCookies();
 	var c;
 	for(c in cookies) {
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 8a803c292..26a86a393 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -16006,6 +16006,16 @@ var loadOptionsCookie = loadOptions;
 
 function getCookies()
 {
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		var storedData = {};
+		for (var n = window.localStorage.length || 0; --n >= 0; ) {
+			var key = window.localStorage.key(n);
+			storedData[key] = window.localStorage[key];
+		}
+		return storedData;
+	}
+	// else: use old-style cookie storage
 	var cookieList = document.cookie.split(';');
 	var i,cookies = {};
 	for(i=0; i<cookieList.length; i++) {
@@ -16070,7 +16080,13 @@ var saveOptionCookie = saveOption;
 
 function removeCookie(name)
 {
-	document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 UTC; path=/;';
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		window.localStorage.removeItem(name);
+	} else {
+		// use old-style cookie storage
+		document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 UTC; path=/;';
+	}
 }
 
 function saveCookie(name)
@@ -16081,10 +16097,18 @@ function saveCookie(name)
 		value = value == null ? 'false' : value;
 		cookies[key] = value;
 	}
-	// TW291 and later (#159)
-	document.cookie = 'TiddlyWikiClassicOptions='
-		+ String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+	var encodedCookie = String.encodeHashMap(cookies).replace(/%/g,'%25').replace(/"/g,'%22')
+	// Modern browsers (e.g. Firefox Quantum) do not support Cookies for file:/// anymore
+	if (typeof(Storage) !== "undefined") {
+		// modern browser: use HTML5 web storage
+		window.localStorage.TiddlyWikiClassicOptions = encodedCookie;
+	} else {
+		// use old-style cookie storage
+		// TW291 and later (#159)
+		document.cookie = 'TiddlyWikiClassicOptions='
+		+ encodedCookie
 		+ '; expires=Fri, 1 Jan 2038 12:00:00 UTC; path=/';
+	}
 	cookies = getCookies();
 	var c;
 	for(c in cookies) {

From b3bac8ee135790484988574bbed1f08a8e316bab Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 20 Oct 2018 04:21:29 +0200
Subject: [PATCH 158/178] TiddlyWiki: fix layout glitch (related to Firefox
 Quantum)

the labels fo the "More" sidebar tab are too long,
causing the last one to flip to the next line
---
 wiki/renderengine.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 26a86a393..0f858fec6 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -10964,7 +10964,7 @@ merge(config.shadowTiddlers,{
 	SiteUrl: "",
 	SideBarOptions: '<<search>><<closeAll>><<permaview>><<newTiddler>><<newJournal "DD MMM YYYY" "journal">><<saveChanges>><<slider chkSliderOptionsPanel OptionsPanel "options \u00bb" "Change TiddlyWiki advanced options">>',
 	SideBarTabs: '<<tabs txtMainTab "Timeline" "Timeline" TabTimeline "All" "All tiddlers" TabAll "Tags" "All tags" TabTags "More" "More lists" TabMore>>',
-	TabMore: '<<tabs txtMoreTab "Missing" "Missing tiddlers" TabMoreMissing "Orphans" "Orphaned tiddlers" TabMoreOrphans "Shadowed" "Shadowed tiddlers" TabMoreShadowed>>'
+	TabMore: '<<tabs txtMoreTab "Missing" "Missing tiddlers" TabMoreMissing "Orphan" "Orphaned tiddlers" TabMoreOrphans "Shadowed" "Shadowed tiddlers" TabMoreShadowed>>'
 	});
 
 merge(config.annotations,{

From a8429671c5f35a7a43b2f2e99312f0e5f6e56640 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 20 Oct 2018 04:28:46 +0200
Subject: [PATCH 159/178] TiddlyWiki: fix the SplashScreenPlugin (corrupting
 the Wiki alltogether)

The (very old and long abandoned) SplashScreenPlugin
was written in a very hackish style, as it injected a <div> with the splash screen into the <head> tag.
In those olde days when evil reigned, browsers just happily displayed such documents.

But our new gem, Firefox Quantum, now "sanitises" such a malformed document
by closing the Head right before the <div> and relocating the opening BODY tag
to this place. Which then causes the TiddlyWiki self-modification routine
to flounder, because the opening body tag is now in the middle of a "markup area",
which is replaced by existing tiddler content (in this case the "MarkupPreHead" tiddler).
So we end up without an opening Body tag, and this is what we save -- Resulting in a corrupted wiki!

The obvious fix is to use the MarkupPreBody instead
---
 wiki/renderengine.html | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 0f858fec6..a8a18225e 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -45,7 +45,6 @@ DAMAGE.
 <link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml'/>
 <!--}}}-->
 
-<style type="text/css">#contentWrapper {display:none;}</style><div id="SplashScreen" style="border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Tahoma; background-color:#eee;">loading <b>Proc-Layer</b> devel doku<blink> ...</blink><br><br><span style="font-size: 14px; color:red;">Requires Javascript.</span></div>
 <!--PRE-HEAD-END-->
 <title> Engine - Building a Render Nodes Network from Objects in the Session </title>
 <style id="styleArea" type="text/css">
@@ -65,6 +64,8 @@ DAMAGE.
 <body onload="main();" onunload="if(window.unload) unload();">
 <!--PRE-BODY-START-->
 
+<style type="text/css">#contentWrapper {display:none;}</style>
+<div id="SplashScreen" style="border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Serif; background-color:#eee;">loading <b>Lumiera</b> development notes ...<br/><br/><span style="font-size: 14px; color:red;">Requires Javascript.</span></div>
 <!--PRE-BODY-END-->
 <div id="copyright">
 Welcome to TiddlyWiki created by Jeremy Ruston; Copyright &copy; 2004-2007 Jeremy Ruston, Copyright &copy; 2007-2011 UnaMesa Association
@@ -4205,12 +4206,16 @@ This Design strives to achieve a StrongSeparation between the low-level Structur
 __10/2008__: the allocation mechanism can surely be improved later, but for now I am going for a simple implementation based on heap allocated objects owned by a vector or smart-ptrs. For each segment of the render nodes network, we have several families of objects, each of with will be maintained by a separate low-level memory manager (as said, for now implemented as vector of smart-ptrs). Together, they form an AllocationCluster; all objects contained in such a cluster will be destroyed together.
 </pre>
 </div>
-<div title="MarkupPreHead" modifier="Ichthyostega" created="200706172303" modified="200802030405">
+<div title="MarkupPreBody" modifier="Ichthyostega" created="201810200151" modified="201810200212" changecount="2">
+<pre>
+&lt;style type=&quot;text/css&quot;&gt;#contentWrapper {display:none;}&lt;/style&gt;
+&lt;div id=&quot;SplashScreen&quot; style=&quot;border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Serif; background-color:#eee;&quot;&gt;loading &lt;b&gt;Lumiera&lt;/b&gt; development notes ...&lt;br/&gt;&lt;br/&gt;&lt;span style=&quot;font-size: 14px; color:red;&quot;&gt;Requires Javascript.&lt;/span&gt;&lt;/div&gt;</pre>
+</div>
+<div title="MarkupPreHead" modifier="Ichthyostega" created="200706172303" modified="201810200212" changecount="1">
 <pre>&lt;!--{{{--&gt;
 &lt;link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml'/&gt;
 &lt;!--}}}--&gt;
-
-&lt;style type=&quot;text/css&quot;&gt;#contentWrapper {display:none;}&lt;/style&gt;&lt;div id=&quot;SplashScreen&quot; style=&quot;border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Tahoma; background-color:#eee;&quot;&gt;loading &lt;b&gt;Proc-Layer&lt;/b&gt; devel doku&lt;blink&gt; ...&lt;/blink&gt;&lt;br&gt;&lt;br&gt;&lt;span style=&quot;font-size: 14px; color:red;&quot;&gt;Requires Javascript.&lt;/span&gt;&lt;/div&gt;</pre>
+</pre>
 </div>
 <div title="MediaAsset" modifier="Ichthyostega" created="200709021530" modified="201003140236" tags="def classes img">
 <pre>The Interface asset::Media is a //key abstraction// It ties together several concepts and enables to deal with them on the interfaces in a uniform manner. Besides, like every Asset kind, it belongs rather to the bookkeeping view: an asset::Media holds the specific properties and parametrisation of the media source it stands for. Regarding the __inward interface__ &amp;mdash; as used from within the [[model|HighLevelModel]] or the [[render nodes|ProcNode]], it is irrelevant if any given asset::Media object stands for a complete media source, just a clip taken from this source or if a placeholder version of the real media source is used instead.
@@ -7279,7 +7284,7 @@ Shutdown is initiated by sending a message to the dispatcher loop. This causes t
 <div title="SplashScreen" modifier="just me" created="200706220430">
 <pre>{{red{killme}}}</pre>
 </div>
-<div title="SplashScreenPlugin" modifier="Saq" created="200607191631" modified="200607202048" tags="lewcidExtension systemConfig">
+<div title="SplashScreenPlugin" modifier="Ichthyostega" created="200607191631" modified="201810200148" tags="lewcidExtension systemConfig" changecount="1">
 <pre>/***
 
 ''Inspired by [[TiddlyPom|http://www.warwick.ac.uk/~tuspam/tiddlypom.html]]''
@@ -7323,14 +7328,14 @@ restart = function()
 }
 
 
-var oldText = store.getTiddlerText(&quot;MarkupPreHead&quot;);
+var oldText = store.getTiddlerText(&quot;MarkupPreBody&quot;) || '';
 if (oldText.indexOf(&quot;SplashScreen&quot;)==-1)
    {var siteTitle = store.getTiddlerText(&quot;SiteTitle&quot;);
    var splasher='\n\n&lt;style type=&quot;text/css&quot;&gt;#contentWrapper {display:none;}&lt;/style&gt;&lt;div id=&quot;SplashScreen&quot; style=&quot;border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Tahoma; background-color:#eee;&quot;&gt;&lt;b&gt;'+siteTitle +'&lt;/b&gt; is loading&lt;blink&gt; ...&lt;/blink&gt;&lt;br&gt;&lt;br&gt;&lt;span style=&quot;font-size: 14px; color:red;&quot;&gt;Requires Javascript.&lt;/span&gt;&lt;/div&gt;';
-   if (! store.tiddlerExists(&quot;MarkupPreHead&quot;))
-       {var myTiddler = store.createTiddler(&quot;MarkupPreHead&quot;);}
+   if (! store.tiddlerExists(&quot;MarkupPreBody&quot;))
+       {var myTiddler = store.createTiddler(&quot;MarkupPreBody&quot;);}
    else
-      {var myTiddler = store.getTiddler(&quot;MarkupPreHead&quot;);}
+      {var myTiddler = store.getTiddler(&quot;MarkupPreBody&quot;);}
       myTiddler.set(myTiddler.title,oldText+splasher,config.options.txtUserName,null,null);
       store.setDirty(true);
       var splashScreenInstall = true;
@@ -10964,7 +10969,7 @@ merge(config.shadowTiddlers,{
 	SiteUrl: "",
 	SideBarOptions: '<<search>><<closeAll>><<permaview>><<newTiddler>><<newJournal "DD MMM YYYY" "journal">><<saveChanges>><<slider chkSliderOptionsPanel OptionsPanel "options \u00bb" "Change TiddlyWiki advanced options">>',
 	SideBarTabs: '<<tabs txtMainTab "Timeline" "Timeline" TabTimeline "All" "All tiddlers" TabAll "Tags" "All tags" TabTags "More" "More lists" TabMore>>',
-	TabMore: '<<tabs txtMoreTab "Missing" "Missing tiddlers" TabMoreMissing "Orphan" "Orphaned tiddlers" TabMoreOrphans "Shadowed" "Shadowed tiddlers" TabMoreShadowed>>'
+	TabMore: '<<tabs txtMoreTab "Missing" "Missing tiddlers" TabMoreMissing "Orphan" "Orphaned tiddlers" TabMoreOrphans "Shadow" "Shadowed tiddlers" TabMoreShadowed>>'
 	});
 
 merge(config.annotations,{

From e9d38d4987d0119e0af7ffd1da593762b2527723 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 20 Oct 2018 04:35:49 +0200
Subject: [PATCH 160/178] TiddlyWiki: remove the SplashScreenPlugin

This is an obsolete feature, since the JavaScript engine in modern browsers
is way faster than it used to be, and people are accustomed to some loading time
due to all those "single page applications".

I haven't seen this splash screen even on the old Firefox for quite some time;
moreover, the TiddlyWiki 2.9.1 now displays a "JavaScript is required" alert
anyway, so there is really no need for all this messing around.
---
 wiki/renderengine.html | 73 +-----------------------------------------
 1 file changed, 1 insertion(+), 72 deletions(-)

diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index a8a18225e..112088aea 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -42,7 +42,7 @@ DAMAGE.
 " />
 <!--PRE-HEAD-START-->
 <!--{{{-->
-<link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml'/>
+<link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml' />
 <!--}}}-->
 
 <!--PRE-HEAD-END-->
@@ -64,8 +64,6 @@ DAMAGE.
 <body onload="main();" onunload="if(window.unload) unload();">
 <!--PRE-BODY-START-->
 
-<style type="text/css">#contentWrapper {display:none;}</style>
-<div id="SplashScreen" style="border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Serif; background-color:#eee;">loading <b>Lumiera</b> development notes ...<br/><br/><span style="font-size: 14px; color:red;">Requires Javascript.</span></div>
 <!--PRE-BODY-END-->
 <div id="copyright">
 Welcome to TiddlyWiki created by Jeremy Ruston; Copyright &copy; 2004-2007 Jeremy Ruston, Copyright &copy; 2007-2011 UnaMesa Association
@@ -4206,17 +4204,6 @@ This Design strives to achieve a StrongSeparation between the low-level Structur
 __10/2008__: the allocation mechanism can surely be improved later, but for now I am going for a simple implementation based on heap allocated objects owned by a vector or smart-ptrs. For each segment of the render nodes network, we have several families of objects, each of with will be maintained by a separate low-level memory manager (as said, for now implemented as vector of smart-ptrs). Together, they form an AllocationCluster; all objects contained in such a cluster will be destroyed together.
 </pre>
 </div>
-<div title="MarkupPreBody" modifier="Ichthyostega" created="201810200151" modified="201810200212" changecount="2">
-<pre>
-&lt;style type=&quot;text/css&quot;&gt;#contentWrapper {display:none;}&lt;/style&gt;
-&lt;div id=&quot;SplashScreen&quot; style=&quot;border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Serif; background-color:#eee;&quot;&gt;loading &lt;b&gt;Lumiera&lt;/b&gt; development notes ...&lt;br/&gt;&lt;br/&gt;&lt;span style=&quot;font-size: 14px; color:red;&quot;&gt;Requires Javascript.&lt;/span&gt;&lt;/div&gt;</pre>
-</div>
-<div title="MarkupPreHead" modifier="Ichthyostega" created="200706172303" modified="201810200212" changecount="1">
-<pre>&lt;!--{{{--&gt;
-&lt;link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml'/&gt;
-&lt;!--}}}--&gt;
-</pre>
-</div>
 <div title="MediaAsset" modifier="Ichthyostega" created="200709021530" modified="201003140236" tags="def classes img">
 <pre>The Interface asset::Media is a //key abstraction// It ties together several concepts and enables to deal with them on the interfaces in a uniform manner. Besides, like every Asset kind, it belongs rather to the bookkeeping view: an asset::Media holds the specific properties and parametrisation of the media source it stands for. Regarding the __inward interface__ &amp;mdash; as used from within the [[model|HighLevelModel]] or the [[render nodes|ProcNode]], it is irrelevant if any given asset::Media object stands for a complete media source, just a clip taken from this source or if a placeholder version of the real media source is used instead.
 [img[Asset Classess|uml/fig130437.png]]
@@ -7284,64 +7271,6 @@ Shutdown is initiated by sending a message to the dispatcher loop. This causes t
 <div title="SplashScreen" modifier="just me" created="200706220430">
 <pre>{{red{killme}}}</pre>
 </div>
-<div title="SplashScreenPlugin" modifier="Ichthyostega" created="200607191631" modified="201810200148" tags="lewcidExtension systemConfig" changecount="1">
-<pre>/***
-
-''Inspired by [[TiddlyPom|http://www.warwick.ac.uk/~tuspam/tiddlypom.html]]''
-
-|Name|SplashScreenPlugin|
-|Created by|SaqImtiaz|
-|Location|http://tw.lewcid.org/#SplashScreenPlugin|
-|Version|0.21 |
-|Requires|~TW2.08+|
-!Description:
-Provides a simple splash screen that is visible while the TW is loading.
-
-!Installation
-Copy the source text of this tiddler to your TW in a new tiddler, tag it with systemConfig and save and reload. The SplashScreen will now be installed and will be visible the next time you reload your TW.
-
-!Customizing
-Once the SplashScreen has been installed and you have reloaded your TW, the splash screen html will be present in the MarkupPreHead tiddler. You can edit it and customize to your needs.
-
-!History
-* 20-07-06 : version 0.21, modified to hide contentWrapper while SplashScreen is displayed.
-* 26-06-06 : version 0.2, first release
-
-!Code
-***/
-//{{{
-var old_lewcid_splash_restart=restart;
-
-restart = function()
-{   if (document.getElementById(&quot;SplashScreen&quot;))
-        document.getElementById(&quot;SplashScreen&quot;).style.display = &quot;none&quot;;
-      if (document.getElementById(&quot;contentWrapper&quot;))
-        document.getElementById(&quot;contentWrapper&quot;).style.display = &quot;block&quot;;
-    
-    old_lewcid_splash_restart();
-   
-    if (splashScreenInstall)
-       {if(config.options.chkAutoSave)
-			{saveChanges();}
-        displayMessage(&quot;TW SplashScreen has been installed, please save and refresh your TW.&quot;);
-        }
-}
-
-
-var oldText = store.getTiddlerText(&quot;MarkupPreBody&quot;) || '';
-if (oldText.indexOf(&quot;SplashScreen&quot;)==-1)
-   {var siteTitle = store.getTiddlerText(&quot;SiteTitle&quot;);
-   var splasher='\n\n&lt;style type=&quot;text/css&quot;&gt;#contentWrapper {display:none;}&lt;/style&gt;&lt;div id=&quot;SplashScreen&quot; style=&quot;border: 3px solid #ccc; display: block; text-align: center; width: 320px; margin: 100px auto; padding: 50px; color:#000; font-size: 28px; font-family:Tahoma; background-color:#eee;&quot;&gt;&lt;b&gt;'+siteTitle +'&lt;/b&gt; is loading&lt;blink&gt; ...&lt;/blink&gt;&lt;br&gt;&lt;br&gt;&lt;span style=&quot;font-size: 14px; color:red;&quot;&gt;Requires Javascript.&lt;/span&gt;&lt;/div&gt;';
-   if (! store.tiddlerExists(&quot;MarkupPreBody&quot;))
-       {var myTiddler = store.createTiddler(&quot;MarkupPreBody&quot;);}
-   else
-      {var myTiddler = store.getTiddler(&quot;MarkupPreBody&quot;);}
-      myTiddler.set(myTiddler.title,oldText+splasher,config.options.txtUserName,null,null);
-      store.setDirty(true);
-      var splashScreenInstall = true;
-}
-//}}}</pre>
-</div>
 <div title="StateAdapter" modifier="Ichthyostega" created="200806261912" modified="201109151535" tags="Rendering impl def">
 <pre>A small (in terms of storage) and specifically configured StateProxy object which is created on the stack {{red{Really on the stack? 9/11}}} for each individual {{{pull()}}} call. It is part of the invocation state of such a call and participates in the buffer management. Thus, in a calldown sequence of {{{pull()}}} calls we get a corresponding sequence of &quot;parent&quot; states. At each level, the &amp;rarr; WiringDescriptor of the respective node defines a Strategy how the call is passed on.</pre>
 </div>

From c3d91d4ed3f52de3d9b8b3548531d98069cdf16c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 27 Oct 2018 01:52:46 +0200
Subject: [PATCH 161/178] Timeline: draft for building the nested recursive
 display structure

the solution idea is to use a helper frame, and an "anchor functor",
which is passed down from the respective parent context, and which
does the actual work of injecting the child widgets at the apropriate
position within the parent display.
---
 src/gui/timeline/layout-manager.cpp      |   7 +-
 src/gui/timeline/layout-manager.hpp      |  23 +-
 src/gui/timeline/timeline-controller.cpp |  12 +-
 src/gui/timeline/timeline-controller.hpp |   6 +-
 src/gui/timeline/timeline-widget.cpp     |   6 +-
 src/gui/timeline/timeline-widget.hpp     |   8 +-
 src/gui/timeline/track-presenter.cpp     |  19 +-
 src/gui/timeline/track-presenter.hpp     |  49 +-
 wiki/renderengine.html                   |  20 +-
 wiki/thinkPad.ichthyo.mm                 | 689 +++++++++++++----------
 10 files changed, 502 insertions(+), 337 deletions(-)

diff --git a/src/gui/timeline/layout-manager.cpp b/src/gui/timeline/layout-manager.cpp
index 0fbcf6ba1..e266344a8 100644
--- a/src/gui/timeline/layout-manager.cpp
+++ b/src/gui/timeline/layout-manager.cpp
@@ -59,16 +59,21 @@ namespace timeline {
   
   
   
+  LayoutManager::~LayoutManager() { }
   
   LayoutManager::LayoutManager ()
     {
     }
   
   
-  LayoutManager::~LayoutManager()
+  void
+  LayoutManager::installRootTrack(TrackHeadWidget& head, TrackBody& body)
   {
+    UNIMPLEMENTED ("attach the widgets for the root track display");
   }
   
+
+  
   
   
   
diff --git a/src/gui/timeline/layout-manager.hpp b/src/gui/timeline/layout-manager.hpp
index 1f7bf5b2f..464e9202f 100644
--- a/src/gui/timeline/layout-manager.hpp
+++ b/src/gui/timeline/layout-manager.hpp
@@ -40,11 +40,12 @@
  ** # Architecture
  ** 
  ** A naive approach would have a global layout manager drill down into some model storage
- ** and reach into the components to manipulate and adjust the layout to fit. Doing so can
- ** be considered, since this links together details scattered all over the model into a
- ** huge global process carried out at a single code location. Any further extension or
- ** evolution of details of the UI presentation are bound to be worked into this core
- ** global piece of code, which soon becomes brittle, hard to understand and generally
+ ** and reach into the components to manipulate and adjust the layout to fit. Yet however
+ ** straight forward and adequate this might seem, following this routine is a recipe for
+ ** disaster, since this procedure now ties and links together details scattered all over
+ ** the model into a huge global process, carried out at a single code location. Any further
+ ** extension or evolution of details of the UI presentation are bound to be worked into this
+ ** core global piece of code, which soon becomes brittle, hard to understand and generally
  ** a liability and maintenance burden. We have seen this happen in numerous existing
  ** code bases (and in fact even our own initial approach started to go down that route).
  ** Thus we strive to break up the whole process of controlling the layout into several
@@ -58,12 +59,13 @@
  ** Whenever the layout of timeline contents has to be (re)established, we trigger a recursive
  ** evaluation pass, which in fact is a tree walk. The layout manager creates a DisplayEvaluation
  ** record, which is passed to the [Element's allocate function](\ref Element::allocate). The element
- ** in turn has the liability to walks its children and recursively initiate a nested evaluation
+ ** in turn has the liability to walk its children and recursively initiate a nested evaluation
  ** by invoking DisplayEvaluation::evaluateChild(Element), which in turn calls back to
  ** LayoutManager::evaluate() to initiate a recursive evaluation pass. Within the recursively
  ** created DisplayEvaluation elements, we are able to transport and aggregate information
  ** necessary to give each element it' screen allocation. And this in turn allows us to
- ** decide upon a suitable display strategy for each individual element.
+ ** decide upon a suitable display strategy for each individual element, within a local
+ ** and self-contained context.
  ** 
  ** For this to work, the _element_ can not be the actual widget, since the result of this whole
  ** process might be to create or retract an actual GTK widget. For this reason, the timeline
@@ -92,6 +94,9 @@
 namespace gui  {
 namespace timeline {
   
+  class TrackHeadWidget;
+  class TrackBody;
+  
   
   /**
    * @todo WIP-WIP as of 12/2016
@@ -101,7 +106,9 @@ namespace timeline {
     public:
       LayoutManager ();
      ~LayoutManager();
-     
+      
+      void installRootTrack(TrackHeadWidget&,TrackBody&);
+      
     private:/* ===== Internals ===== */
      
     };
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index f0b359c9e..6bf6d18ce 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -40,6 +40,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "include/ui-protocol.hpp"
+#include "gui/timeline/layout-manager.hpp"
 #include "gui/timeline/timeline-controller.hpp"
 #include "gui/timeline/track-presenter.hpp"
 #include "gui/timeline/marker-widget.hpp"
@@ -75,15 +76,20 @@ namespace timeline {
 //const int TimelineWidget::TrackPadding = 1;
 //const int TimelineWidget::HeaderWidth = 150;
 //const int TimelineWidget::HeaderIndentWidth = 10;
+  class TrackHeadWidget;
+  class TrackBody;
   
   
   
   
-  TimelineController::TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus)
+  TimelineController::TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, LayoutManager& layoutManager)
     : Controller{identity, nexus}
+    , name_{identity.getSym()}         // fallback initialise name from human-readable ID symbol 
     , markers_{}
-    , fork_{new TrackPresenter{trackID, nexus}}
-    , name_{identity.getSym()}              // fallback initialise name from human-readable ID symbol 
+    , fork_{new TrackPresenter{trackID, nexus, [&](TrackHeadWidget& head,TrackBody& body)
+                                                 {
+                                                   layoutManager.installRootTrack (head, body); 
+                                                 }}}
     {
       UNIMPLEMENTED ("how to make the controller operative...");
     }
diff --git a/src/gui/timeline/timeline-controller.hpp b/src/gui/timeline/timeline-controller.hpp
index 07ce4609c..85ca2d9bf 100644
--- a/src/gui/timeline/timeline-controller.hpp
+++ b/src/gui/timeline/timeline-controller.hpp
@@ -72,6 +72,7 @@ namespace timeline {
   using std::string;
   
   class TrackPresenter;
+  class LayoutManager;
   class MarkerWidget;
   
   
@@ -86,10 +87,11 @@ namespace timeline {
   class TimelineController
     : public model::Controller
     {
+      string name_;
+      
       vector<unique_ptr<MarkerWidget>> markers_;
       std::unique_ptr<TrackPresenter>  fork_;
       
-      string name_;
       
     public:
       /**
@@ -97,7 +99,7 @@ namespace timeline {
        * @param trackID the mandatory root track used in the associated Sequence
        * @param nexus some established connection to the UI-Bus, used for registration.
        */
-      TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus);
+      TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, LayoutManager&);
       
      ~TimelineController();
       
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 90e037ff7..22ee125c5 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -32,6 +32,8 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/timeline/timeline-widget.hpp"
+#include "gui/timeline/timeline-controller.hpp"
+#include "gui/timeline/layout-manager.hpp"
 
 //#include "gui/workspace/workspace-window.hpp"
 //#include "gui/ui-bus.hpp"
@@ -67,8 +69,8 @@ namespace timeline {
   
   TimelineWidget::TimelineWidget (BusTerm::ID identity, BusTerm::ID trackID, BusTerm& nexus)
     : TimelinePage{}
-    , control_{new TimelineController{identity, trackID, nexus}}
     , layout_{new LayoutManager}
+    , control_{new TimelineController{identity, trackID, nexus, *layout_}}
     {
       UNIMPLEMENTED ("build the timeline UI");
     }
@@ -86,7 +88,7 @@ namespace timeline {
   cuString
   TimelineWidget::getLabel()  const
   {
-    control_->getName();
+    return control_->getName();
   }
 
   
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index 9fcb9853b..98290fb6f 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -56,8 +56,8 @@
 #define GUI_TIMELINE_TIMELINE_WIDGET_H
 
 #include "gui/gtk-base.hpp"
-#include "gui/timeline/timeline-controller.hpp"   /////TODO possible to push that into the implementation?
-#include "gui/timeline/layout-manager.hpp"
+//#include "gui/timeline/timeline-controller.hpp"   /////TODO possible to push that into the implementation?
+//#include "gui/timeline/layout-manager.hpp"
 #include "gui/ctrl/bus-term.hpp"
 
 #include "lib/time/timevalue.hpp"
@@ -77,6 +77,8 @@ namespace gui  {
 namespace timeline {
   
   using ctrl::BusTerm;
+  class TimelineController;
+  class LayoutManager;
   
   /**
    * Interface: GUI page holding a timeline display
@@ -105,8 +107,8 @@ namespace timeline {
   class TimelineWidget
     : public TimelinePage
     {
-      std::unique_ptr<TimelineController> control_;
       std::unique_ptr<LayoutManager>      layout_;
+      std::unique_ptr<TimelineController> control_;
       
     public:
       /** build a new timeline display and attach it to the UI-Bus.
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index 962e03a35..31a81ad6e 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -33,8 +33,6 @@
 #include "gui/gtk-base.hpp"
 #include "include/ui-protocol.hpp"
 #include "gui/timeline/track-presenter.hpp"
-#include "gui/timeline/clip-presenter.hpp"
-#include "gui/timeline/marker-widget.hpp"
 
 //#include "gui/ui-bus.hpp"
 //#include "lib/format-string.hpp"
@@ -66,16 +64,6 @@ namespace timeline {
   
   
   
-  TrackPresenter::TrackPresenter (ID identity, ctrl::BusTerm& nexus)
-    : Controller{identity, nexus}
-    , subFork_{}
-    , markers_{}
-    , clips_{}
-    , head_{}
-    , body_{}
-    {
-      UNIMPLEMENTED ("how to attach the TrackPresenter into the two relevant GTK display contexts");
-    }
   
   
   TrackPresenter::~TrackPresenter()
@@ -151,7 +139,12 @@ namespace timeline {
                   })
                .constructFrom ([&](GenNode const& spec) -> PFork
                   {
-                    return make_unique<TrackPresenter> (spec.idi, this->uiBus_);
+                    return make_unique<TrackPresenter> (spec.idi
+                                                       ,this->uiBus_
+                                                       ,[&](TrackHeadWidget& head,TrackBody& body)
+                                                          {
+                                                            display_.injectSubTrack (head, body); 
+                                                          });
                   })
                .buildChildMutator ([&](PFork& target, GenNode::ID const& subID, TreeMutator::Handle buff) -> bool
                   {
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index 9e71323d4..39d9c1a46 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -49,12 +49,16 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/model/controller.hpp"
+#include "gui/timeline/marker-widget.hpp"
+#include "gui/timeline/clip-presenter.hpp"
 #include "gui/timeline/track-head-widget.hpp"
 #include "gui/timeline/track-body.hpp"
 
+#include "lib/nocopy.hpp"
 //#include "lib/util.hpp"
 
 //#include <memory>
+#include <utility>
 #include <vector>
 
 
@@ -65,8 +69,31 @@ namespace timeline {
   using std::vector;
   using std::unique_ptr;
   
-  class ClipPresenter;
-  class MarkerWidget;
+  
+  /**
+   * Reference frame to organise the display related to a specific Track in the Timeline-GUI.
+   */
+  struct DisplayFrame
+    : util::NonCopyable
+    {
+      TrackHeadWidget head;
+      TrackBody       body;
+      
+      template<class FUN>
+      DisplayFrame (FUN anchorDisplay)
+        : head{}
+        , body{}
+        {
+          anchorDisplay (head, body);
+        }
+      
+      void
+      injectSubTrack (TrackHeadWidget& head, TrackBody& body)
+        {
+          UNIMPLEMENTED ("inject the widgets to represent a nested sub-track within this timeline track display frame");
+        }
+    };
+  
   
   /**
    * @todo WIP-WIP as of 12/2016
@@ -74,22 +101,28 @@ namespace timeline {
   class TrackPresenter
     : public model::Controller
     {
+      DisplayFrame display_;
+      
       vector<unique_ptr<TrackPresenter>> subFork_;
       vector<unique_ptr<MarkerWidget>>   markers_;
       vector<unique_ptr<ClipPresenter>>  clips_;
       
-      TrackHeadWidget head_;
-      TrackBody       body_;
-      
       
     public:
+     ~TrackPresenter();
+      
       /**
        * @param identity used to refer to a corresponding session::Fork in the Session
        * @param nexus a way to connect this Controller to the UI-Bus.
        */
-      TrackPresenter (ID identity, ctrl::BusTerm& nexus);
-      
-     ~TrackPresenter();
+      template<class FUN>
+      TrackPresenter (ID identity, ctrl::BusTerm& nexus, FUN anchorDisplay)
+        : Controller{identity, nexus}
+        , display_{anchorDisplay}
+        , subFork_{}
+        , markers_{}
+        , clips_{}
+        { }
       
       
       /** set up a binding to respond to mutation messages via UiBus */
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 112088aea..ec3356728 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -3498,7 +3498,7 @@ In the most general case, there can be per-track content and nested content at t
 &amp;rarr; important question: how to [[organise the widgets|GuiTimelineWidgetStructure]]
 </pre>
 </div>
-<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810100337" tags="GuiPattern discuss decision impl" changecount="89">
+<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810262342" tags="GuiPattern discuss decision impl" changecount="93">
 <pre>The Timeline is probably the most prominent place in the GUI where we need to come up with a custom UI design.
 Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also means to write one or several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 Gui, as implemented currently, did already take some steps along this route, yet this kind of decision should be cast and documented explicitly (be it after the fact).
 
@@ -3507,7 +3507,7 @@ Right away, this topic touches a tricky design and architectural challenge: the
 In a nutshell, ~GTKmm offers several degrees of customisation, namely to build a custom widget class, to build a custom container widget, and to use the [[Gtk::Layout &quot;canvas widget&quot;|GtkLayoutWidget]], possibly combined with //custom drawing.// In addition to assembling a timeline widget class by combining several nested panes, the timeline display needs to rely on the latter approach to allow for the necessary flexible arrangement of [[clip widgets|GuiClipWidget]] within the [[track fork|Fork]].
 
 !the header pane problem
-From general considerations we draw the conclusion to have a track header pane area always visible to the left. For one this means that our top level widget organisation in the timeline will be a horizontal split. And then this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, it is likely the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part, the actual track contents impose very specific layout constraints not served by any of the pre-existing layout containers, which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
+From general considerations we draw the conclusion to have a track header pane area always visible to the left. For one this means that our top level widget organisation in the timeline will be a horizontal split. And then this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, presumably the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part -- the actual track contents -- impose very specific layout constraints not served by any of the pre-existing layout containers, which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
 
 !!!considering a table grid layout
 The layout mechanics we try to establish here by explicit implementation would be more or less a given, if instead we'd build the whole timeline display from one base widget, which needs to be a table layout, i.e. {{{Gtk::Grid}}}. We'd use two columns, one for the header pane area, one for the timeline display, and we'd use N+1 rows, with the head row holding the time ruler and the additional rows holding individual tracks. But to get the specific UI mechanics desirable for a timeline display, we had to introduce some twists:
@@ -3524,7 +3524,7 @@ While the special setup for scrolling doesn't really count (since it is necessar
 !!!follow-up to the obvious choices
 We came to this point of re-considering the overall organisation of widgets, after having to re-write the initial version of our timeline widget. This initial version was developed by Joel Holdsworth, and it followed a similar reasoning, involving a global timeline layout manager. The distinction between the two panes was not so clear though, and the access to the model code was awkward at places, so the necessity to re-write the timeline widget due to the transition to ~GTK-3 looks like a good opportunity to re-do the same basic reasoning a second time, verify decisions taken and improve matters turning out as difficult on first attempt.
 
-So we get a timeline custom widget, which at top level establishes this two-part layout, provides the global scrollbars and integrates custom widget components for both parts. And this top-level timeline widget owns a layout manager, plus it exposes a common view management interface, to be used both from internal components (e.g. zoom widgets within the UI) and from external actors controlling the timeline display from a global level. Also at this global level, we get to define a layout control interface, the TimelineDisplayManager, which has to be implemented within the recursively structured parts of the timeline display, and which is used by the global layout manager to execute its control over the layout as a whole. {{red{Note (11/2016)}}}: if this layout control interface works push or pull style is a decision yet to be worked out during the course of the implementation.
+So we get a timeline custom widget, which at top level establishes this two-part layout, provides the global scrollbars and integrates custom widget components for both parts. And this top-level timeline widget owns a layout manager, plus it exposes a common view management interface, to be used both from internal components (e.g. zoom widgets within the UI) and from external actors controlling the timeline display from a global level. Also at this global level, we get to define a layout control interface, the TimelineDisplayManager, which has to be implemented within the recursively structured parts of the timeline display, and which is used by the global layout manager to exert control over the layout as a whole. {{red{Note (11/2016)}}}: if this layout control interface works push or pull style is a decision yet to be worked out during the course of the implementation.
 
 
 !dealing with nested structures
@@ -3535,11 +3535,15 @@ The structure of the display is extended or altered under two circumstances:
 # the display (style) of some component is expanded or collapsed.
 Here, the &quot;component&quot; relevant for such structural changes is always the UI representation of a track. Beyond that, the layout can also be changed //without changing the display structure,// when some embedded component, be it placement (in the track heads / the patchbay) or a clip, effect or transition, is expanded or collapsed. In such a case, a resizing challenge needs to be directed towards the next enclosing track container.
 
-From these observations we can draw the conclusion, that we'll build a ''local structural model'', to reflect the logical relations between the parts comprising the timeline display. More precisely, these structuring components are not mere model objects, rather they are mediating entities used to guide and organise the actual view entities, which in turn are passive. They are more like a view model, while also bearing some local controller responsibilities. For this reason, we prefer to term these as ''presenters'' -- i.e. TrackPresenter and ClipPresenter. And each of these local representation components holds onto a display context, which generally links it into two different display widget stacks in the two parts of the actual timeline display. Adding a child component thus becomes a rather tricky operation, involving to link possibly two child widgets into two disjoint parent widgets, thereby forming a similar display context for the child presenter. Overall, the guiding idea is that of self similarity: on each level, we have to reproduce the same relations and collaborations as present in the parent level.
+From these observations we can draw the conclusion, that we'll build a ''local structural model'', to reflect the logical relations between the parts comprising the timeline display. More precisely, these structuring components are not mere model objects, rather they are mediating entities used to guide and organise the actual view entities, which in turn are passive. They are more like a view model, while also bearing some local controller responsibilities. For this reason, we prefer to term these as ''presenters'' -- i.e. TrackPresenter and ClipPresenter. And each of these local representation components holds onto a ''display context'', which generally links it //into two different display widget stacks// within the two parts of the actual timeline display. Adding a child component thus becomes a rather tricky operation, involving to link possibly two child widgets into two disjoint parent widgets, thereby forming a similar display context for the child presenter. Overall, the guiding idea is that of self similarity: on each level, we have to reproduce the same relations and collaborations as present in the parent level.
 
 !!!building the timeline representation structure
 It is a fundamental decision within the Lumiera UI that any structure as to be injected as diff by the core. We do not hold a structure or data model within some UI entity and then &quot;interpret&quot; that model into a widget structure -- rather we build the widget structure itself in response to a diff message describing the structure. Especially in the case of timelines, the receiver of those messages is the InteractionDirector, which corresponds to the model root. On being prompted to set up a timeline, it will allocate a {{{TimelineWidget}}} within a suitable timeline docking panel and then attach to the {{{TimelineController}}} embedded within the widget.
+
 {{red{Problem 10/2018}}} how can the InteractionDirector //manage// a timeline while the timeline widget physically resides within the panel? Can we exploit a simliar structure as we did for the error log?
+ * in part yes -- however we introduce an mediating entity, the {{{TimelineGui}}} proxy
+ * it uses a {{{WLink}}} to refer to the actual {{{TimelineWidget}}} -- meaning the widget need not exist, and will detach automatically when destroyed by its holder, which is the {{{TimelinePanel}}}
+ * {{red{TODO 11/2018}}} still need to care for removing a {{{TimelineWidget}}} when the logically managing parent, i.e. the InteractionDirector deletes the {{{TimelineGui}}} proxy
 
 The diff describing and thus assembling the UI representation of a timeline is typically a ''population diff'' -- which means, it is a consolidated complete description of the whole sub-structure rooted below that timeline. Such a population diff is generated as emanation from the respective DiffConstituent.
 
@@ -9122,12 +9126,18 @@ Placements are __resolved__ resulting in an ExplicitPlacement. In most cases thi
 &amp;rarr; [[Definition|Pipe]] and [[handling of Pipes|PipeHandling]]
 </pre>
 </div>
-<div title="TrackPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611280207" modified="201612020050" tags="def GuiPattern" changecount="4">
+<div title="TrackPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611280207" modified="201810262349" tags="def GuiPattern" changecount="6">
 <pre>//mediating entity used to guide and control the track-like nested working space in the timeline display of the UI.//
 
 Similar to the ClipPresenter, from a global angle this element fulfils a model like role, while also guiding and controlling a mostly passive view component implemented as GTK widget. Here, the authority of the presenter over the widget must be total, since display management //needs to work automatically,// due to model updates and mutations arriving as [[diff messages|MutationMessage]]. In addition, this structure is prerequisite for (possibly) implementing UI rendering optimisations, since it allows us to leave out widgets entirely, when it is clear they won't become visible: A ''display evaluation pass'', which is effectively a //tree walk,// consecutively visits each part of the timeline structure, to negotiate its concrete display properties in collaboration with a global TimelineDisplayManager. As a result, the presenter knows where to show its corresponding view, and it knows if to show it at all, allowing to either adjust, create or destroy actual GTK widgets within its local reference frame.
 
 A special twist arises from the fact that track display has to happen aligned and in sync within the two display panes of the timeline at the same time. This means that each TrackPresenter has to hold and manage //two slave display elements,// each of which is inserted within a disjoint hierarchy of display elements. For one, there is the {{{timeline::TrackHeadWidget}}} which in turn renders a {{{PatchbayWidget}}}, and on the other side there is a {{{TrackBody}}} element, which is not strictly a widget of itself, but inserted into our custom drawing {{{timeline::BodyCanvasWidget}}} to manage the custom drawing of the respective track working area.
+
+To deal with this typical problem of recursive programming, we introduce a binding element, the {{{DisplayFrame}}}
+* the TrackPresenter holds a {{{DisplayFrame}}} member, which in turn houses the two head and body widgets. So basically the widgets are allocated within the presenter.
+* however, after constructing the {{{DisplayFrame}}}, it invokes an anchor functor, which is passed in from the recursive outer scope, and which does the actual work of installing those widgets into the apropriate parent widgets
+* but the {{{DisplayFrame}}} itself also exposes such an anchor functor, which can be passed down when (recursively) creating a TrackPresenter for a sub-Track
+* obviously, at top-level, we need to digress from that general pattern -- here it is the {{{timeline::LayoutManager}}} responsible for the display structure of the whole timeline which exposes the necessary anchor function to attach the root track for a timeline.
 </pre>
 </div>
 <div title="TransitionsHandling" modifier="Ichthyostega" created="200712080417" modified="200805300100" tags="def design">
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7d9f02839..369a7e0c9 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -1302,8 +1302,8 @@
 </node>
 <node COLOR="#338800" CREATED="1493753249399" FOLDED="true" HGAP="64" ID="ID_1023343635" MODIFIED="1538840125563" TEXT="#1098 hand-over in UI-Thread" VSHIFT="83">
 <linktarget COLOR="#a75677" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="-317;-24;" ID="Arrow_ID_274836249" SOURCE="ID_1146157818" STARTARROW="None" STARTINCLINATION="-647;-66;"/>
-<linktarget COLOR="#7caaa8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="2513;3565;" ID="Arrow_ID_1832047032" SOURCE="ID_489078622" STARTARROW="Default" STARTINCLINATION="3463;134;"/>
 <linktarget COLOR="#84c6b8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="21;233;" ID="Arrow_ID_1372135725" SOURCE="ID_995145542" STARTARROW="None" STARTINCLINATION="237;0;"/>
+<linktarget COLOR="#7caaa8" DESTINATION="ID_1023343635" ENDARROW="Default" ENDINCLINATION="2513;3565;" ID="Arrow_ID_1832047032" SOURCE="ID_489078622" STARTARROW="Default" STARTINCLINATION="3463;134;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1501804992301" ID="ID_1647263044" MODIFIED="1538263469665" TEXT="schedule event"/>
 <node CREATED="1501804985286" ID="ID_320977714" MODIFIED="1538263469665" TEXT="GTK-Mechanismus">
@@ -5201,8 +5201,7 @@
       &#187;die <b>Timeline</b>&#171;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1477784813895" ID="ID_330280074" MODIFIED="1538939829985">
 <richcontent TYPE="NODE"><html>
@@ -5214,8 +5213,7 @@
       <u>Aufgabe</u>: <i><font size="4" color="#821b58">populate timeline</font></i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#f9b709" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-37;-88;" ID="Arrow_ID_779644313" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942842294" ID="ID_1752483939" MODIFIED="1538942914255" TEXT="minimalen Diff f&#xfc;r eine Timeline">
@@ -5364,8 +5362,7 @@
       &#187;der <b>Viewer</b>&#171;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="hourglass"/>
 </node>
 <node CREATED="1538938835228" ID="ID_1454224639" MODIFIED="1538938956750" TEXT="&#xbb;Properties&#xab;">
@@ -5411,8 +5408,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1538941006509" TEXT="Timeline">
 <linktarget COLOR="#7d91d6" DESTINATION="ID_1613745412" ENDARROW="Default" ENDINCLINATION="-63;-32;" ID="Arrow_ID_1377777978" SOURCE="ID_1327960211" STARTARROW="None" STARTINCLINATION="-144;16;"/>
 </node>
@@ -5445,8 +5441,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1538583873795" ID="ID_1515056203" MODIFIED="1538583876382" TEXT="spezifisch">
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
@@ -5471,8 +5466,7 @@
       vorbereitete Grundstrukturen f&#252;r immer wiederkehrende Setups
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1537961734956" FOLDED="true" ID="ID_345535043" MODIFIED="1538583863918" TEXT="Notebook-Widget">
 <node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
 <icon BUILTIN="forward"/>
@@ -5680,8 +5674,7 @@
       Im Zweifelsfall den GTK+ Inspector verwenden!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5710,8 +5703,7 @@
       CSS gen&#252;gt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -5759,8 +5751,7 @@
       }
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5847,8 +5838,7 @@
       da&#223; die alte, obsolete Timeline zur&#252;ckgebaut ist
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="hourglass"/>
 </node>
 <node CREATED="1493853590149" ID="ID_1075149702" MODIFIED="1539382657347" TEXT="Race beim triggerShutdown">
@@ -5867,8 +5857,7 @@
       bevor die Notification-Facade ge&#246;ffnet werden konnte
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5951,8 +5940,7 @@
       Allerdings habe ich an der Stelle immer noch GTK-Assertions
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -5995,8 +5983,8 @@
 <icon BUILTIN="info"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1485457021805" ID="ID_1476863246" MODIFIED="1534511297619" TEXT="Gtk::UiManager ist deprecated">
-<linktarget COLOR="#ae182e" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="283;-164;" ID="Arrow_ID_1851148216" SOURCE="ID_206480879" STARTARROW="Default" STARTINCLINATION="481;0;"/>
 <linktarget COLOR="#6d7495" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="1126;-247;" ID="Arrow_ID_1941890495" SOURCE="ID_384827553" STARTARROW="None" STARTINCLINATION="-231;14;"/>
+<linktarget COLOR="#ae182e" DESTINATION="ID_1476863246" ENDARROW="Default" ENDINCLINATION="283;-164;" ID="Arrow_ID_1851148216" SOURCE="ID_206480879" STARTARROW="Default" STARTINCLINATION="481;0;"/>
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493768617653" ID="ID_292624709" MODIFIED="1518487921060" TEXT="f&#xe4;llt anscheinend ersatzlos weg"/>
 <node CREATED="1493768625564" ID="ID_1620270152" MODIFIED="1518487921060" TEXT="Verdacht: stattdessen Gtk::Application"/>
@@ -6028,8 +6016,7 @@
       ist, da&#223; Gio::Application sofort auch gleich eine dBus-Verbindung hochf&#228;hrt.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1485457105010" HGAP="49" ID="ID_202831328" MODIFIED="1518487921060" TEXT="neuer Weg" VSHIFT="21">
@@ -16656,8 +16643,7 @@
       und daher auf &quot;inaktiv&quot; geschaltet ist.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539382645426" TEXT="TreeMutator scheitert per Default">
@@ -16708,8 +16694,7 @@
       Habe verifiziert, da&#223; diese Assertion tats&#228;chlich greift
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -17058,8 +17043,7 @@
       ...denn das ist das vereinfachte Setup f&#252;r &quot;einfache&quot; Applikationen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1485457370310" ID="ID_1931452525" MODIFIED="1518487921077" TEXT="GtkWindow sind v&#xf6;llig ausreichend"/>
@@ -17386,8 +17370,8 @@
 <node CREATED="1485555999110" ID="ID_376092703" MODIFIED="1518487921078" TEXT="top-level macht GtkLumiera im ctor"/>
 <node CREATED="1485556011260" ID="ID_1618308499" MODIFIED="1518487921078" TEXT="backlink zum Manager"/>
 <node CREATED="1486943522965" ID="ID_36527267" MODIFIED="1518487921078" TEXT="top-level-Kontext">
-<linktarget COLOR="#8c95b2" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="138;-548;" ID="Arrow_ID_1284182756" SOURCE="ID_576215675" STARTARROW="None" STARTINCLINATION="883;143;"/>
 <linktarget COLOR="#4f547b" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="-424;-2038;" ID="Arrow_ID_134552555" SOURCE="ID_984712012" STARTARROW="None" STARTINCLINATION="2623;0;"/>
+<linktarget COLOR="#8c95b2" DESTINATION="ID_36527267" ENDARROW="Default" ENDINCLINATION="138;-548;" ID="Arrow_ID_1284182756" SOURCE="ID_576215675" STARTARROW="None" STARTINCLINATION="883;143;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <node CREATED="1488494592496" ID="ID_1586259377" MODIFIED="1518487921078" TEXT="UI-Bus"/>
 <node CREATED="1488494579346" ID="ID_1182508289" MODIFIED="1518487921078" TEXT="UiManager"/>
@@ -17445,8 +17429,7 @@
       das Diff wird auf den Platzhalter angewendet
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1504386636074" ID="ID_1996752633" MODIFIED="1539382657639" TEXT="automatisches Management von&#xf6;ten">
 <richcontent TYPE="NOTE"><html>
@@ -17461,8 +17444,7 @@
       dann mu&#223; dieses automatisch deregistriert werden
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1504371342426" ID="ID_869653682" MODIFIED="1518487921078">
 <richcontent TYPE="NODE"><html>
@@ -17720,8 +17702,7 @@
       und welchen Teil des Verhaltens &#252;berlassen wir GTK
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1477600216950" ID="ID_1935952349" MODIFIED="1518487921079" TEXT="focus">
@@ -17778,8 +17759,7 @@
       Details im&#160;&#160;TiddlyWiki....
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1479678634213" ID="ID_432405176" MODIFIED="1518487921079" TEXT="rekursive Struktur schaffen">
@@ -17842,8 +17822,7 @@
       braucht feste Speicher-Addresse
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480724781801" ID="ID_198046255" MODIFIED="1518487921080" TEXT="folglich: nicht in STL-Container">
 <icon BUILTIN="stop-sign"/>
@@ -17865,8 +17844,7 @@
       und sei es auch blo&#223; &#252;ber ein Interface!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480724910096" ID="ID_874781354" MODIFIED="1518487921080" TEXT="kann direkt das View-Modell manipulieren"/>
 <node CREATED="1480724927814" ID="ID_1912287440" MODIFIED="1518487921080" TEXT="ist nicht direkt erreichbar">
@@ -17915,8 +17893,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1480725106478" ID="ID_550796340" MODIFIED="1518487921080" TEXT="effektiv auch die L&#xf6;sung f&#xfc;r Alternative-2">
@@ -17997,8 +17974,7 @@
       ...f&#252;r die dritte L&#246;sung, die Repr&#228;sentation bereits in der Session
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#5793da" DESTINATION="ID_646231524" ENDARROW="Default" ENDINCLINATION="186;21;" ID="Arrow_ID_431447729" STARTARROW="None" STARTINCLINATION="26;-3;"/>
 <icon BUILTIN="info"/>
 </node>
@@ -18014,8 +17990,7 @@
       <font color="#e71c1c">Problem</font>: alle Timelines der Session repr&#228;sentieren?
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#c8a1fe" DESTINATION="ID_430199880" ENDARROW="Default" ENDINCLINATION="-629;0;" ID="Arrow_ID_1293894659" SOURCE="ID_585499856" STARTARROW="None" STARTINCLINATION="-505;56;"/>
 <icon BUILTIN="help"/>
 <node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1539389184120" ID="ID_1213259045" MODIFIED="1539389277600" TEXT="vorl&#xe4;ufig: immer">
@@ -18103,8 +18078,7 @@
       Implementiert w&#252;rde sie vom jeweiligen Widget
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480123478013" ID="ID_1281325973" MODIFIED="1539382658514" TEXT="eine Ebene zu tief, aber geht noch">
 <richcontent TYPE="NOTE"><html>
@@ -18134,8 +18108,7 @@
       Der Dekorator w&#252;rde also auf dem TreeMutator sitzen...
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480121092492" ID="ID_1543810707" MODIFIED="1539382658523" TEXT="L&#xf6;schungen nur heuristisch zu erkennen">
 <richcontent TYPE="NOTE"><html>
@@ -18156,8 +18129,7 @@
       Daher gibt es die matchSrc-Operation. Effektiv wird die aber nur bei einem Delete aufgerufen...
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480123741362" ID="ID_586646895" MODIFIED="1539382658531" TEXT="unsauber, h&#xe4;sslich, ungl&#xfc;cklich">
 <richcontent TYPE="NOTE"><html>
@@ -18180,8 +18152,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480123380843" ID="ID_1717666432" MODIFIED="1518487921081" TEXT="w&#xe4;re prinzipiell machbar">
 <icon BUILTIN="forward"/>
@@ -18269,8 +18240,7 @@
       d.h. eine LUID
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1480300699694" ID="ID_1686150984" MODIFIED="1518487921081" TEXT="aktiver Part der View-Steuerung"/>
@@ -18316,8 +18286,7 @@
       Irgend eine BareEntryID gen&#252;gt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480725273775" ID="ID_1495656573" MODIFIED="1518487921081" TEXT="Bus-Term-Referenz"/>
 </node>
@@ -18356,8 +18325,7 @@
       ...abstraktes Interface
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1480725680713" ID="ID_448125852" MODIFIED="1518487921081" TEXT="Delegate for Notification">
 <icon BUILTIN="help"/>
@@ -18379,8 +18347,7 @@
       um die Bindung herzustellen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
@@ -18388,7 +18355,7 @@
 <node CREATED="1480741498930" ID="ID_1605140473" MODIFIED="1518487921081" TEXT="hat nur einen einziten RootTrack">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1480742405505" ID="ID_1590367176" MODIFIED="1539382658949" TEXT="ACHTUNG: leere Sequenz?">
+<node CREATED="1480742405505" FOLDED="true" ID="ID_1590367176" MODIFIED="1540506890163" TEXT="ACHTUNG: leere Sequenz?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18400,6 +18367,12 @@
     <p>
       oder eine Sequenz ohne root-Fork zulassen
     </p>
+    <p>
+      <u>Fazit</u>: wir lassen das nicht zu, erzwingen das bereits per ctor
+    </p>
+    <p>
+      und erwarten abweichend vom Standard ein vollst&#228;ndiges Skelett im INS-Verb
+    </p>
   </body>
 </html>
 </richcontent>
@@ -18410,8 +18383,10 @@
 <node CREATED="1480742437892" ID="ID_1335490062" MODIFIED="1518487921081" TEXT="und die kann nur &#xfc;ber den Bus kommen"/>
 <node CREATED="1480742445563" ID="ID_1224591813" MODIFIED="1518487921081" TEXT="also m&#xfc;ssen wir warten, bis das Attribut zugewiesen wird"/>
 </node>
-<node CREATED="1480776067549" ID="ID_1500222365" MODIFIED="1518487921081" TEXT="Alternativen">
-<node CREATED="1480776081388" ID="ID_783764544" MODIFIED="1518487921081" TEXT="via ctor">
+<node CREATED="1480776067549" FOLDED="true" HGAP="41" ID="ID_1500222365" MODIFIED="1540506824773" TEXT="Alternativen" VSHIFT="-1">
+<icon BUILTIN="info"/>
+<node CREATED="1480776081388" ID="ID_783764544" MODIFIED="1540506788245" TEXT="via ctor">
+<icon BUILTIN="full-1"/>
 <node CREATED="1480776096665" ID="ID_1492275941" MODIFIED="1539382659115" TEXT="das hei&#xdf;t....">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -18433,16 +18408,14 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1480776313813" ID="ID_1507386991" MODIFIED="1518487921082" TEXT="Vorteil: einfache Verh&#xe4;ltnisse in der Widget-Impl"/>
-<node CREATED="1480776341393" ID="ID_1985821448" MODIFIED="1518487921082" TEXT="Nachteil: mu&#xdf; Diff genau so schicken"/>
+<node CREATED="1480776341393" ID="ID_1985821448" MODIFIED="1540506389132" TEXT="Nachteil: mu&#xdf; Diff genau in spezieller Form schicken"/>
 <node CREATED="1480777922397" ID="ID_514769772" MODIFIED="1518487921082" TEXT="...sonst">
 <icon BUILTIN="smily_bad"/>
-<node CREATED="1480777941187" ID="ID_1804935890" MODIFIED="1518487921082" TEXT="irgendjemand triggert Laden"/>
-<node CREATED="1480777950449" ID="ID_487608965" MODIFIED="1518487921082" TEXT="Core schickt Populations-diff"/>
+<node CREATED="1480777950449" ID="ID_487608965" MODIFIED="1540506527436" TEXT="Core schickt unvollst&#xe4;ndigen Populations-diff"/>
 <node CREATED="1480777972862" ID="ID_1185499319" MODIFIED="1518487921082" TEXT="Exception beim Aufspielen"/>
 <node CREATED="1480777979069" ID="ID_1379570617" MODIFIED="1518487921082" TEXT="kann nur geloggt werden"/>
 <node CREATED="1480777983381" ID="ID_1125654729" MODIFIED="1518487921082" TEXT="Folglich fehlt im UI die betreffende Timeline"/>
@@ -18481,8 +18454,7 @@
       typischerweise wird es das in einem Populationsdiff sofort als N&#228;chstes machen.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="info"/>
 </node>
 <node CREATED="1480778348652" ID="ID_1249761108" MODIFIED="1518487921082" TEXT="Vorteil: Diff-Erzeugung und Aufspielen l&#xe4;uft nach Schema-F"/>
@@ -18500,9 +18472,10 @@
     </p>
   </body>
 </html></richcontent>
-<node CREATED="1480778420418" ID="ID_1430286640" MODIFIED="1518487921082" TEXT="Problem ignorieren">
-<node CREATED="1480778490545" ID="ID_1228109442" MODIFIED="1518487921082" TEXT="darauf hoffen, da&#xdf; das Diff immer sauber kommt"/>
+<node CREATED="1480778420418" ID="ID_1430286640" MODIFIED="1540506791804" TEXT="Problem ignorieren">
+<icon BUILTIN="full-2"/>
 <node CREATED="1480778499928" ID="ID_1466170472" MODIFIED="1518487921082" TEXT="Felder im Ctor einfach uninitialisiert lassen"/>
+<node CREATED="1480778490545" ID="ID_1228109442" MODIFIED="1540506504371" TEXT="darauf hoffen, da&#xdf; das Diff immer komplett alles populiert"/>
 <node CREATED="1480778511086" ID="ID_1612105579" MODIFIED="1518487921082" TEXT="keine Checks im Code"/>
 <node CREATED="1480778532907" ID="ID_1167492250" MODIFIED="1539382659162">
 <richcontent TYPE="NODE"><html>
@@ -18524,12 +18497,25 @@
       <i>&quot;was kann denn schon passieren??&quot;</i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smily_bad"/>
 </node>
+<node CREATED="1540506535667" ID="ID_1048222076" MODIFIED="1540506545488">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und wenn nicht, dann <b>Crash</b>
+    </p>
+  </body>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480778451502" ID="ID_1135553012" MODIFIED="1518487921082" TEXT="echt optionale Felder">
+</node>
+<node CREATED="1480778451502" ID="ID_1135553012" MODIFIED="1540506795353" TEXT="echt optionale Felder">
+<icon BUILTIN="full-3"/>
 <node CREATED="1480778622039" ID="ID_1007915114" MODIFIED="1518487921082">
 <richcontent TYPE="NODE"><html>
   <head>
@@ -18564,8 +18550,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480778768988" ID="ID_1385067618" MODIFIED="1539382659180" TEXT="und das alles nur f&#xfc;r....">
 <richcontent TYPE="NOTE"><html>
@@ -18577,15 +18562,14 @@
       einen Fall, der <i>praktisch nie</i>&#160;auftritt
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smily_bad"/>
 </node>
 </node>
 </node>
 </node>
 </node>
-<node CREATED="1480780047561" HGAP="88" ID="ID_1993420764" MODIFIED="1518487921082" TEXT="Entscheidung" VSHIFT="16">
+<node CREATED="1480780047561" FOLDED="true" HGAP="88" ID="ID_1993420764" MODIFIED="1540506822429" TEXT="Entscheidung" VSHIFT="16">
 <node CREATED="1480780057079" ID="ID_481017202" MODIFIED="1518487921082" TEXT="Analyse">
 <node CREATED="1480780061327" ID="ID_628488180" MODIFIED="1539382659192" TEXT="zwei F&#xe4;lle sind sehr &#xe4;hnlich">
 <richcontent TYPE="NOTE"><html>
@@ -18605,8 +18589,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1480780163369" ID="ID_851065784" MODIFIED="1518487921082" TEXT="wenig Zusatzaufwand"/>
 <node CREATED="1480780174552" ID="ID_640476327" MODIFIED="1518487921082" TEXT="funktioniert fast immer"/>
 <node CREATED="1480780183319" ID="ID_431465582" MODIFIED="1518487921082" TEXT="&#xfc;ble Konsequenzen wenn nicht"/>
@@ -18624,8 +18607,7 @@
       und auch &#252;ber ihre APIs dem Nutzer diese Unterscheidnung mit aufzwingen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <node CREATED="1480780253397" ID="ID_1966427410" MODIFIED="1518487921082" TEXT="zum Preis von deutlich Mehraufwand"/>
 <node CREATED="1480780260508" ID="ID_1565963038" MODIFIED="1539382659215" TEXT="plus einer korrodierenden Wirkung">
 <richcontent TYPE="NOTE"><html>
@@ -18652,8 +18634,7 @@
       heimlich in den &quot;wird schon nix passieren&quot; Fall zu geraten.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480780269867" ID="ID_1571900658" MODIFIED="1518487921082" TEXT="daf&#xfc;r kann nie was passieren"/>
 </node>
@@ -18675,8 +18656,7 @@
       Es ist keine weitere Argumentation notwendig.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480780538975" ID="ID_1139883143" MODIFIED="1539382659232" TEXT="nur die &quot;pa&#xdf;t schon&quot;-L&#xf6;sung ist vern&#xfc;nftig">
 <richcontent TYPE="NOTE"><html>
@@ -18697,27 +18677,11 @@
       &quot;fokussiere Dich&quot;
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1480780704849" ID="ID_483861197" MODIFIED="1518487921082" TEXT="Abw&#xe4;gung">
-<node CREATED="1480780715911" ID="ID_1289637688" MODIFIED="1518487921082" TEXT="in der Berufspraxis mu&#xdf; man st&#xe4;ndig ein Auge zudr&#xfc;cken"/>
-<node CREATED="1480780731213" ID="ID_773522234" MODIFIED="1518487921082">
-<richcontent TYPE="NODE"><html>
-  <head>
-    
-  </head>
-  <body>
-    <p>
-      hier hab ich <b>endlich mal</b>&#160;die Gelegenheit, sauber zu arbeiten
-    </p>
-  </body>
-</html></richcontent>
-</node>
-<node CREATED="1480780746851" ID="ID_1128552915" MODIFIED="1518487921082" TEXT="und etwas zu schaffen, f&#xfc;r das ich mich nicht entschuldigen mu&#xdf;"/>
-<node CREATED="1480780768272" ID="ID_1174359339" MODIFIED="1518487921082" TEXT="leider f&#xfc;hrt genau diese Haltung dazu, da&#xdf; mir die Helfer davonlaufen"/>
-<node CREATED="1480780835319" ID="ID_1263364267" MODIFIED="1539382659247">
+<node CREATED="1480780835319" ID="ID_1263364267" MODIFIED="1540506617751">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -18744,9 +18708,32 @@
 </richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
+<node CREATED="1540506618429" ID="ID_654526245" MODIFIED="1540506765576" TEXT="w&#xe4;hle die geradlinige L&#xf6;sung">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        die L&#246;sung entspricht der inneren Natur der Dinge
+      </li>
+      <li>
+        sie bedeutet zwar (leider) eine zus&#228;tzliche Verpflichtung beim Erzeugen des Diff
+      </li>
+      <li>
+        aber im Fehlerfall scheitern wir halbwegs sauber (Exception, dysfunktionales UI)
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<arrowlink DESTINATION="ID_1156407347" ENDARROW="Default" ENDINCLINATION="57;0;" ID="Arrow_ID_665420852" STARTARROW="None" STARTINCLINATION="11;38;"/>
+<icon BUILTIN="yes"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1480780930115" HGAP="5" ID="ID_1156407347" MODIFIED="1539382659254" TEXT="L&#xf6;sung: per Konstruktor festlegen" VSHIFT="6">
+</node>
+<node COLOR="#338800" CREATED="1480780930115" HGAP="5" ID="ID_1156407347" MODIFIED="1540506801313" TEXT="L&#xf6;sung: per Konstruktor festlegen" VSHIFT="6">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18770,9 +18757,10 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1156407347" ENDARROW="Default" ENDINCLINATION="57;0;" ID="Arrow_ID_665420852" SOURCE="ID_654526245" STARTARROW="None" STARTINCLINATION="11;38;"/>
 <icon BUILTIN="button_ok"/>
+<icon BUILTIN="full-1"/>
 </node>
 </node>
 </node>
@@ -18800,6 +18788,208 @@
   </body>
 </html></richcontent>
 <icon BUILTIN="help"/>
+<node CREATED="1540259854597" ID="ID_330440597" MODIFIED="1540259862037" TEXT="Invariante gesucht">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1540259882177" ID="ID_269340322" MODIFIED="1540259890115" TEXT="TrackPresenter braucht....">
+<node CREATED="1540259899289" ID="ID_1550133488" MODIFIED="1540259904570" TEXT="einen Head-Slave"/>
+<node CREATED="1540259905062" ID="ID_1804783123" MODIFIED="1540259909050" TEXT="einen Body-Slave"/>
+</node>
+<node CREATED="1540260041187" ID="ID_686871621" MODIFIED="1540505336844" TEXT="Grundstruktur?">
+<icon BUILTIN="help"/>
+<node CREATED="1540260073971" ID="ID_564056863" MODIFIED="1540505343547" TEXT="TrackPresenter hat DisplayFrame"/>
+<node CREATED="1540260094236" ID="ID_439265924" MODIFIED="1540505360897" TEXT="DisplayFrame kann Sub-DisplayFrame erzeugen"/>
+<node CREATED="1540260106675" ID="ID_432321502" MODIFIED="1540505376306" TEXT="aus sub-Frame kann man sub-TrackPresenter bauen"/>
+</node>
+</node>
+</node>
+<node CREATED="1540346398887" ID="ID_1953592630" MODIFIED="1540505389845" TEXT="DisplayFrame">
+<node CREATED="1540346412629" ID="ID_1434445651" MODIFIED="1540346429973">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      abstrahiert den Zugang zum <i>zugeh&#246;rigen Widget</i>
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1540346455423" ID="ID_535248075" MODIFIED="1540346485543" TEXT="schafft die invariante Struktur im Verh&#xe4;ltnis zu den Kindern"/>
+<node CREATED="1540505441706" HGAP="28" ID="ID_1492670388" MODIFIED="1540505450351" TEXT="Lebenszyklus" VSHIFT="20">
+<node CREATED="1540505464975" ID="ID_195276443" MODIFIED="1540505478674" TEXT="DisplayFrame (als Member) an TrackPresenter gebunden"/>
+<node CREATED="1540505481022" ID="ID_1566437478" MODIFIED="1540505494080" TEXT="konkrete Widgets leben im DisplayFrame"/>
+<node CREATED="1540506987900" ID="ID_1173067540" MODIFIED="1540507001556">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      sub-Frame wird f&#252;r <i>unsere</i>&#160;Kinder erzeugt
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1540507009225" ID="ID_104172694" MODIFIED="1540507018636" TEXT="Kinder werden vor Members zerst&#xf6;rt"/>
+<node CREATED="1540507040165" ID="ID_1123333647" MODIFIED="1540507075713">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <u>Fazit</u>: DisplayFrame kann sich auf Parent verlassen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1540511179218" ID="ID_1592328868" MODIFIED="1540597814664" TEXT="Problem: Ankerpunkt">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1540511250489" ID="ID_49278916" MODIFIED="1540511273407" TEXT="wie h&#xe4;ngt man die ganze Struktur auf?"/>
+<node CREATED="1540511274366" ID="ID_1134388060" MODIFIED="1540511281241" TEXT="L&#xf6;sungsans&#xe4;tze">
+<node CREATED="1540511304602" ID="ID_814037364" MODIFIED="1540512611946" TEXT="halb konstruierter Frame ohne Widgets">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        die Parent/Anker-Widgets werden auf ein Interface reduziert, z.B. Gtk::Container
+      </li>
+      <li>
+        man reicht einen halbfertigen Frame rein, in dem bereits die Anker-Widgets gesetzt sind
+      </li>
+      <li>
+        dann ruft man eine Konstruktor-Funktion auf, die die eigentlichen Widgets erstellt und verdrahtet
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="full-1"/>
+</node>
+<node CREATED="1540511389686" ID="ID_1017315025" MODIFIED="1540512614058" TEXT="Anker-Widgets explizit &#xfc;bergeben">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        die Anker-Widgets kommen per Ref auf Interface
+      </li>
+      <li>
+        sie werden explizit an den ctor des Controllers &#252;bergeben
+      </li>
+      <li>
+        dieser verwendet die Referenzen, um in einem Streich den DisplayFrame incl. eigentlicher Widgets zu erzeugen
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="full-2"/>
+</node>
+<node CREATED="1540511282493" ID="ID_1902168929" MODIFIED="1540512616361" TEXT="Parent-Frame hat virtuelle Methoden">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <ul>
+      <li>
+        der ctor des Controllers bekommt eine Ref. auf den Parent-Frame
+      </li>
+      <li>
+        dieser bietet eine virtuelle Methode, mit der sich die Widgets installieren lassen
+      </li>
+      <li>
+        wenn der Controller den DisplayFrame erzeugt, werden dort unmittelbar die Widgets konstruiert
+      </li>
+      <li>
+        sodann rufen wir die builder-Funktion auf, um sie im Parent-Kontext zu verankern
+      </li>
+    </ul>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="full-3"/>
+<node CREATED="1540511879965" ID="ID_1507237353" MODIFIED="1540511884826" TEXT="Varianten denkbar">
+<node CREATED="1540511887116" ID="ID_467242392" MODIFIED="1540512180423" TEXT="nicht-virtuelle Methode">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...aber die gesamte Verankerungs-Aktion l&#228;&#223;t sich rein auf Widget-Interface-Ebene machen.
+    </p>
+    <p>
+      D.h. wir rufen den parent-Frame, aber die Implementierung der Methode greift nicht direkt
+    </p>
+    <p>
+      auf die Widgets im Frame zu, sondern delegiert an eine Hilfsfunktion....
+    </p>
+    <p>
+      STOP. Damit ist die virtuelle Methode nur verschoben
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1540512410629" ID="ID_1212514016" MODIFIED="1540512481133" TEXT="generisch">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der ctor des DisplayFrame nimmt einen generischen Typ (Template),
+    </p>
+    <p>
+      von dem nur erwartet wird, da&#223; er eine &quot;Verankerungs&quot;-Funktion bietet
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1540512486974" ID="ID_709169542" MODIFIED="1540512591258" TEXT="Funktor">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      der ctor des DisplayFrame bekommt einen Funktor oder Lambda,
+    </p>
+    <p>
+      welchen er aufruft, um seine neu erstellten Widgets zu verankern
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1540588158613" ID="ID_725383313" MODIFIED="1540588172897" TEXT="Funktor ist...">
+<node CREATED="1540588173682" ID="ID_1607525948" MODIFIED="1540588180650" TEXT="entweder ein virtueller dispatch"/>
+<node CREATED="1540588181550" ID="ID_1634888629" MODIFIED="1540588240683" TEXT="oder de-factor generisch">
+<linktarget COLOR="#14409c" DESTINATION="ID_1634888629" ENDARROW="Default" ENDINCLINATION="-255;27;" ID="Arrow_ID_797597310" SOURCE="ID_417702154" STARTARROW="None" STARTINCLINATION="224;-18;"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1540512596221" ID="ID_417702154" MODIFIED="1540588240683" TEXT="neige der 3. L&#xf6;sung zu">
+<arrowlink COLOR="#14409c" DESTINATION="ID_1634888629" ENDARROW="Default" ENDINCLINATION="-255;27;" ID="Arrow_ID_797597310" STARTARROW="None" STARTINCLINATION="224;-18;"/>
+</node>
 </node>
 </node>
 </node>
@@ -18835,8 +19025,7 @@
       ...sie verwenden dann ein LabelWidget zur Darstellung
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1480741466519" ID="ID_29080454" MODIFIED="1518487921083" TEXT="das werden zwei Collections">
 <icon BUILTIN="messagebox_warning"/>
@@ -18873,8 +19062,7 @@
       Verwende das als Leitgedanke, um das Layout zu entwickeln
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 <node CREATED="1479434831825" ID="ID_975727645" MODIFIED="1518487921083" TEXT="abridged form">
 <node CREATED="1479434845992" ID="ID_609815513" MODIFIED="1518487921083" TEXT="media bin, collapsed fork"/>
@@ -20249,8 +20437,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
 <node CREATED="1539134224759" ID="ID_766070060" MODIFIED="1539134461591" TEXT="Struktur und Realisierung gemeinsam gepusht">
@@ -20268,8 +20455,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -20293,8 +20479,7 @@
       Basis: <b>DiffConstituent</b>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -20309,8 +20494,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#4e31e2" DESTINATION="ID_1189184036" ENDARROW="Default" ENDINCLINATION="-767;-123;" ID="Arrow_ID_156898929" STARTARROW="None" STARTINCLINATION="-1608;-84;"/>
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 <node CREATED="1539138556651" ID="ID_1265568834" MODIFIED="1539138562997" TEXT="per Command ansprechbar"/>
@@ -20328,8 +20512,7 @@
       <u>Aufgabe</u>: <i><font color="#821b58" size="4">inject dummy content</font></i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#f9b709" DESTINATION="ID_791449946" ENDARROW="Default" ENDINCLINATION="-842;-559;" ID="Arrow_ID_1347689482" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-81;124;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533403103076" ID="ID_294556843" MODIFIED="1533403127590" TEXT="hart gecodetes Diff im Command erzeugen">
@@ -20445,8 +20628,8 @@
 </node>
 </node>
 <node CREATED="1538956606744" ID="ID_165150753" MODIFIED="1538957931290" TEXT="erwartete Modell-Struktur">
-<linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" SOURCE="ID_580392349" STARTARROW="None" STARTINCLINATION="1108;116;"/>
 <linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" SOURCE="ID_1996849782" STARTARROW="None" STARTINCLINATION="823;93;"/>
+<linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" SOURCE="ID_580392349" STARTARROW="None" STARTINCLINATION="1108;116;"/>
 <node CREATED="1538956633404" ID="ID_266268175" MODIFIED="1538956634704" TEXT="Root">
 <node CREATED="1538956680006" ID="ID_774059518" MODIFIED="1538956688318" TEXT="TODO Assets?"/>
 <node CREATED="1538956635652" ID="ID_410609041" MODIFIED="1538956794482" TEXT="Sequence{Timeline}"/>
@@ -20595,8 +20778,7 @@
       erfordert bereits Kenntnis der Innereien
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1523019753259" ID="ID_281223690" MODIFIED="1523019759668" TEXT="Einstiegspunkte">
@@ -27667,8 +27849,7 @@
       Implementierung der real-world-Variante fehlt!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <arrowlink COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
 <font NAME="SansSerif" SIZE="13"/>
 <icon BUILTIN="go"/>
@@ -27688,8 +27869,7 @@
       wie Session- und State-Managment, Commands etc.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1453545968166" FOLDED="true" ID="ID_399884859" MODIFIED="1538839448111" TEXT="Command-Handler">
 <icon BUILTIN="button_ok"/>
@@ -32996,8 +33176,7 @@
       </li>
     </ul>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="pencil"/>
 <node COLOR="#435e98" CREATED="1512925265295" HGAP="103" ID="ID_1502143527" MODIFIED="1538869212828" VSHIFT="-66">
 <richcontent TYPE="NODE"><html>
@@ -35404,8 +35583,7 @@
       Denn letzteres ist bei uns eine Grundannahme. Es gibt keine ungef&#228;hren Diffs!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 </node>
@@ -38340,8 +38518,7 @@
       <u>Aufgabe</u>: <i><font color="#821b58" size="4">produce dummy content</font></i>
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <linktarget COLOR="#f9b709" DESTINATION="ID_1478381189" ENDARROW="Default" ENDINCLINATION="-1009;-357;" ID="Arrow_ID_1072548081" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-87;103;"/>
 <icon BUILTIN="flag-yellow"/>
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@@ -38426,8 +38603,7 @@
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       Beachte: der Text-Cursor (Marker &quot;insert&quot;) hat right gravity
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       Konsequenz: man w&#228;hlt dann z.B. eine subtil falsche Spezialisierung.
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       Query&lt;RES&gt;::resolveBy
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       sonst kommt Doxygen durcheinander
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       wird hier kein Link erzeugt
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       Die Icon-Gr&#246;&#223;en ergeben sich aus den Boxes auf 'plate'
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       ...im Besonderen die guten Diagramme f&#252;r Pulse, ALSA und Jack
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       laufen wieder alle
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       test.sh Zeile 138
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       und wir verbringen unsere Zeit mit contention
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       ist klar, hab ich gebrochen
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       Vorher hatte ich erste Kollisionen nach 25000 Nummern
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       Aug 10 04:51:39 flaucher kernel: traps: test-suite[8249] trap int3 ip:7ffff7deb241 sp:7fffffffe5c8 error:0
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       <b>au weia</b>&#160;LEUTE!
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       aktualisieren und neu bauen
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       Ich meine also: zu Beginn vom Build sollte das Buildsystem einmal eine Infozeile ausgeben
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 </node>
@@ -42217,8 +42341,7 @@
       Doku durchk&#228;mmen nach M&#252;ll
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <font NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="full-1"/>
 <icon BUILTIN="button_ok"/>
@@ -42235,8 +42358,7 @@
       <font color="#d40222">WICHTIG</font>: keine vorgreifende Infor publizieren!!!!!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1446482445325" ID="ID_1134936512" MODIFIED="1539382664936" TEXT="Build-Tutorial">
@@ -42255,8 +42377,7 @@
       insgesamt sorgf&#228;ltig durchlesen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446489425420" ID="ID_1155768637" MODIFIED="1518487921104" TEXT="building from source"/>
 <node CREATED="1446489431443" ID="ID_1672115205" MODIFIED="1518487921104" TEXT="building the debian way"/>
@@ -42276,8 +42397,7 @@
       knappe Kennzeichnung des Releases in den Kommentar
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-2"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446480787391" ID="ID_1824008353" MODIFIED="1518487921104" TEXT="admin/scons/Setup.py"/>
@@ -42304,8 +42424,7 @@
       denn wir wollen keine DEB-Info im Master haben!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-3"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446481302159" ID="ID_1330024662" MODIFIED="1518487921104" TEXT="Release-Zweig">
@@ -42331,8 +42450,7 @@
       die unmittelbaren Release-Dokumente durchgehen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-4"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1446481123991" ID="ID_1319204482" MODIFIED="1518487921104" TEXT="README"/>
@@ -42359,8 +42477,7 @@
       Sollte konfliktfrei sein
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-5"/>
 <icon BUILTIN="button_ok"/>
 </node>
@@ -42393,8 +42510,7 @@
       ...das hei&#223;t bauen und hochladen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="full-7"/>
 <node CREATED="1447566826434" HGAP="0" ID="ID_808634666" MODIFIED="1518487921104" TEXT="Bugfix-Release 0.pre.03-2" VSHIFT="-1">
 <icon BUILTIN="idea"/>
@@ -42461,8 +42577,7 @@
       unter Debian/Jessie wird das ignoriert
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1447972547396" ID="ID_1950291699" MODIFIED="1539382665197">
 <richcontent TYPE="NODE"><html>
@@ -42490,8 +42605,7 @@
       Die Wahrscheinlichkeit, da&#223; <i>irgend jemand</i>&#160;Lumiera unter Ubuntu/Trusty <i>installieren </i>m&#246;chte, erscheint mir akademisch
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="bell"/>
 </node>
 </node>
@@ -42527,8 +42641,7 @@
       in lib/hash-standard.hpp
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1447990722939" ID="ID_1163368707" MODIFIED="1518487921105">
 <richcontent TYPE="NODE"><html>
@@ -42563,8 +42676,7 @@
       es gibt Probleme beim Linken mit den Boost-Libraries, die auf Ubuntu/wily mit gcc-5 gebaut sind.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="smily_bad"/>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#990000" CREATED="1447990802803" ID="ID_1667893677" MODIFIED="1518487921105" TEXT="ABBRUCH"/>
@@ -42582,8 +42694,7 @@
       Wichtig: hier nur was wirklich gebaut ist und funktioniert!
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1446589479832" ID="ID_1851762530" MODIFIED="1518487921105" TEXT="alte Repos wegwerfen">
@@ -42623,8 +42734,7 @@
       bestehen, aber irgendwann m&#252;ssen wir das schon glattziehen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1446505367113" ID="ID_1119934206" LINK="http://issues.lumiera.org/ticket/971" MODIFIED="1518487921105">
@@ -42672,8 +42782,7 @@
       seit gcc-4.8 ist kein static_assert mehr in der STDlib
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1447985591922" ID="ID_800130211" MODIFIED="1518487921105" TEXT="Frage: wie kann ich ein SFINAE-Br&#xfc;cke bauen"/>
 <node CREATED="1447985637132" ID="ID_1680970111" MODIFIED="1518487921105" TEXT="Problem: wir haben nur einen Typparameter"/>
@@ -42761,8 +42870,7 @@
       END
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1522025982759" ID="ID_1830638050" MODIFIED="1522025987194" TEXT="reproduzierbar....">
 <node CREATED="1522025990246" ID="ID_261366619" MODIFIED="1539382665435" TEXT="Auf mehreren Terminals x-mal starten">
@@ -42775,8 +42883,7 @@
       for I in `seq 1 50`; do target/test-suite CallQueue_test; done
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 </node>
 <node CREATED="1522026027993" ID="ID_25191931" MODIFIED="1522026034036" TEXT="Anhaltspunkte">
@@ -42796,8 +42903,7 @@
       und eine Doxygen-Seite im Browser geladen
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node COLOR="#990000" CREATED="1521963972811" ID="ID_1942164320" MODIFIED="1522029864550" TEXT="hab ich da was mit dem ThreadWrapper kaputt gemacht?">
 <icon BUILTIN="stop-sign"/>
@@ -42828,8 +42934,7 @@
       weil sich die Threads gegenseitig ihre Counter inkrementieren.
     </p>
   </body>
-</html>
-</richcontent>
+</html></richcontent>
 </node>
 <node CREATED="1522029979544" ID="ID_1820534569" MODIFIED="1522030021122" TEXT="Stre&#xdf;test wiederholt, sogar mit 500 Thrads"/>
 <node COLOR="#338800" CREATED="1522029995205" ID="ID_556688250" MODIFIED="1522030021122" TEXT="jetzt reproduzierbar alles sauber">

From 2d4e58db028b34631aae859fde42f3989c8e55c6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 27 Oct 2018 17:27:29 +0200
Subject: [PATCH 162/178] Timeline: consider how to manage size and layout of
 timeline contents

bottom line is to do most autmatically, and to establish a slave-relation
navigation-area -> timeline-ruler
header-pane-content -> corresponding track-body

this can be accomplished mostly by connecting the aproprieate signals,
thus these widgets will live within the Layout-Manager, which consequently
is renamed into TimelineLayout
---
 doc/technical/code/codingGuidelines.txt       |  19 +-
 src/gui/timeline/timeline-controller.cpp      |   4 +-
 src/gui/timeline/timeline-controller.hpp      |   4 +-
 src/gui/timeline/timeline-gui.cpp             |   6 +-
 ...layout-manager.cpp => timeline-layout.cpp} |  14 +-
 ...layout-manager.hpp => timeline-layout.hpp} |  21 +-
 src/gui/timeline/timeline-widget.cpp          |   4 +-
 src/gui/timeline/timeline-widget.hpp          |   6 +-
 wiki/thinkPad.ichthyo.mm                      | 275 +++++++++++++++++-
 9 files changed, 315 insertions(+), 38 deletions(-)
 rename src/gui/timeline/{layout-manager.cpp => timeline-layout.cpp} (82%)
 rename src/gui/timeline/{layout-manager.hpp => timeline-layout.hpp} (91%)

diff --git a/doc/technical/code/codingGuidelines.txt b/doc/technical/code/codingGuidelines.txt
index 8ec17e34e..36b6ea44b 100644
--- a/doc/technical/code/codingGuidelines.txt
+++ b/doc/technical/code/codingGuidelines.txt
@@ -84,6 +84,10 @@ General Code Arrangement and Layout
   The primary author(s) and the year of the initial copyright claim should be mentioned.
 - Each header should be focused on a specific purpose. Preferably it starts with a file-level
   doxygen comment explaining the intention and anything not obvious from reading the code.
+  At lest a `@file` tag with one line of classification in a doxygen comment at the top of every
+  file is mandatory.footnote:[this rule stands simply because, without such a file-level doxygen
+  comment, doxygen will _ignore all contents_ of this file (really, might be surprising, yet it is
+  the way it is...)]
 - when arranging headers and compilation units, please take care of the compilation times and the
   code size. Avoid unnecessary includes. Use forward declarations where applicable.
   Yet still, _all immediately required direct dependencies should be mentioned_, even if already
@@ -91,11 +95,20 @@ General Code Arrangement and Layout
   link:{ldoc}/technical/code/linkingStructure.html#_imports_and_import_order[issues of code organisation]
 - The include block starts with our own dependencies, followed by a second block with the library
   dependencies. After that, optionally some symbols may be brought into scope (through +using+ clauses).
-  Avoid cluttering top-level namespaces. Never import full namespaces (no +using namespace boost;+ please!)
+  Avoid cluttering top-level namespaces. Never import full namespaces.footnote:[no `using namespace gtk;`
+  or `using namespace boost` please! Experience shows, in the end you'll be using 5 names or so, but
+  pull in all the others just for sake of laziness. Just type the f**g `using` clause for every
+  import individually, and we'll all be better off...]
 - the includes for our own dependencies shall be given relative to source-root (or test root). Don't use
   relative includes for headers located in the same directory, or -- worse still -- in the parent directory.
-- sometimes, the actual translation units will combine several facilities for technical reasons, e.g.
-  when sharing an implementation-level class or even singleton instance.
+- sometimes, the actual translation units will combine several facilities for technical reasons.footnote:
+  [this means, there can be ``headers'', which are actually only be intended for inclusion on one or two
+  distinct places. This should be mentioned in the file-level comment, but generally is an acceptable
+  practice, and better then lumping everything into a 1000 lines header. As a guideline, if you expect
+  a rather technical concern not to be of much interest for most readers of a header, then better
+  extract it into a separate self-contained header and include it. E.g., you might be sharing an
+  an implementation-level class or even singleton instance and some constant definitions. Just
+  be sure not to include definitions several times.]
   Anonymous namespaces should be used liberally to avoid unnecessary exports.
 - template code mostly needs to reside in headers. (same for metaprogramming code).
   We employ the simple inclusion model (``Borland model'') for template instantiation.
diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index 6bf6d18ce..bd18fc694 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -40,7 +40,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "include/ui-protocol.hpp"
-#include "gui/timeline/layout-manager.hpp"
+#include "gui/timeline/timeline-layout.hpp"
 #include "gui/timeline/timeline-controller.hpp"
 #include "gui/timeline/track-presenter.hpp"
 #include "gui/timeline/marker-widget.hpp"
@@ -82,7 +82,7 @@ namespace timeline {
   
   
   
-  TimelineController::TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, LayoutManager& layoutManager)
+  TimelineController::TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, TimelineLayout& layoutManager)
     : Controller{identity, nexus}
     , name_{identity.getSym()}         // fallback initialise name from human-readable ID symbol 
     , markers_{}
diff --git a/src/gui/timeline/timeline-controller.hpp b/src/gui/timeline/timeline-controller.hpp
index 85ca2d9bf..eb157626e 100644
--- a/src/gui/timeline/timeline-controller.hpp
+++ b/src/gui/timeline/timeline-controller.hpp
@@ -72,7 +72,7 @@ namespace timeline {
   using std::string;
   
   class TrackPresenter;
-  class LayoutManager;
+  class TimelineLayout;
   class MarkerWidget;
   
   
@@ -99,7 +99,7 @@ namespace timeline {
        * @param trackID the mandatory root track used in the associated Sequence
        * @param nexus some established connection to the UI-Bus, used for registration.
        */
-      TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, LayoutManager&);
+      TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, TimelineLayout&);
       
      ~TimelineController();
       
diff --git a/src/gui/timeline/timeline-gui.cpp b/src/gui/timeline/timeline-gui.cpp
index 6e78f04c5..f68a385e7 100644
--- a/src/gui/timeline/timeline-gui.cpp
+++ b/src/gui/timeline/timeline-gui.cpp
@@ -73,7 +73,11 @@ namespace timeline {
     , rootTrackID_{rr.rootTrackID_}
     { }
   
-  TimelineGui::~TimelineGui() { }
+  TimelineGui::~TimelineGui()
+    {
+      if (this->isActive())
+        TODO ("cascading destruction of the TimelineWidget");   /////////////////////////////////////////////TICKET 1016 : implement sane unwinding
+    }
   
   
   /**
diff --git a/src/gui/timeline/layout-manager.cpp b/src/gui/timeline/timeline-layout.cpp
similarity index 82%
rename from src/gui/timeline/layout-manager.cpp
rename to src/gui/timeline/timeline-layout.cpp
index e266344a8..a57284a1b 100644
--- a/src/gui/timeline/layout-manager.cpp
+++ b/src/gui/timeline/timeline-layout.cpp
@@ -1,5 +1,5 @@
 /*
-  LayoutManager  -  global timeline layout management and display control
+  TimelineLayout  -  global timeline layout management and display control
 
   Copyright (C)         Lumiera.org
     2016,               Hermann Vosseler <Ichthyostega@web.de>
@@ -21,7 +21,7 @@
 * *****************************************************/
 
 
-/** @file layout-manager.cpp
+/** @file timeline-layout.cpp
  ** Implementation details of global timeline layout management. 
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
@@ -31,7 +31,7 @@
 
 
 #include "gui/gtk-base.hpp"
-#include "gui/timeline/layout-manager.hpp"
+#include "gui/timeline/timeline-layout.hpp"
 
 //#include "gui/ui-bus.hpp"
 //#include "lib/format-string.hpp"
@@ -59,15 +59,17 @@ namespace timeline {
   
   
   
-  LayoutManager::~LayoutManager() { }
+  TimelineLayout::~TimelineLayout() { }
   
-  LayoutManager::LayoutManager ()
+  TimelineLayout::TimelineLayout ()
+    : headerPane_{}
+    , bodyCanvas_{}
     {
     }
   
   
   void
-  LayoutManager::installRootTrack(TrackHeadWidget& head, TrackBody& body)
+  TimelineLayout::installRootTrack(TrackHeadWidget& head, TrackBody& body)
   {
     UNIMPLEMENTED ("attach the widgets for the root track display");
   }
diff --git a/src/gui/timeline/layout-manager.hpp b/src/gui/timeline/timeline-layout.hpp
similarity index 91%
rename from src/gui/timeline/layout-manager.hpp
rename to src/gui/timeline/timeline-layout.hpp
index 464e9202f..b7b714f60 100644
--- a/src/gui/timeline/layout-manager.hpp
+++ b/src/gui/timeline/timeline-layout.hpp
@@ -1,5 +1,5 @@
 /*
-  LAYOUT-MANAGER.hpp  -  global timeline layout management and display control
+  TIMELINE-LAYOUT.hpp  -  global timeline layout management and display control
 
   Copyright (C)         Lumiera.org
     2016,               Hermann Vosseler <Ichthyostega@web.de>
@@ -21,7 +21,7 @@
 */
 
 
-/** @file layout-manager.hpp
+/** @file timeline-layout.hpp
  ** A core service of the timeline UI to ensure consistent display and layout
  ** of all components within the timeline. The content of the timeline is organised
  ** into several nested collections, possibly holding several thousand individual elements.
@@ -79,10 +79,12 @@
  */
 
 
-#ifndef GUI_TIMELINE_LAYOUT_MANAGER_H
-#define GUI_TIMELINE_LAYOUT_MANAGER_H
+#ifndef GUI_TIMELINE_TIMELINE_LAYOUT_H
+#define GUI_TIMELINE_TIMELINE_LAYOUT_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/timeline/header-pane-widget.hpp"
+#include "gui/timeline/body-canvas-widget.hpp"
 
 //#include "lib/util.hpp"
 
@@ -101,11 +103,14 @@ namespace timeline {
   /**
    * @todo WIP-WIP as of 12/2016
    */
-  class LayoutManager
+  class TimelineLayout
     {
+      HeaderPaneWidget headerPane_;
+      BodyCanvasWidget bodyCanvas_;
+      
     public:
-      LayoutManager ();
-     ~LayoutManager();
+      TimelineLayout ();
+     ~TimelineLayout();
       
       void installRootTrack(TrackHeadWidget&,TrackBody&);
       
@@ -115,4 +120,4 @@ namespace timeline {
   
   
 }}// namespace gui::timeline
-#endif /*GUI_TIMELINE_LAYOUT_MANAGER_H*/
+#endif /*GUI_TIMELINE_TIMELINE_LAYOUT_H*/
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 22ee125c5..be1d6f0fe 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -33,7 +33,7 @@
 #include "gui/gtk-base.hpp"
 #include "gui/timeline/timeline-widget.hpp"
 #include "gui/timeline/timeline-controller.hpp"
-#include "gui/timeline/layout-manager.hpp"
+#include "gui/timeline/timeline-layout.hpp"
 
 //#include "gui/workspace/workspace-window.hpp"
 //#include "gui/ui-bus.hpp"
@@ -69,7 +69,7 @@ namespace timeline {
   
   TimelineWidget::TimelineWidget (BusTerm::ID identity, BusTerm::ID trackID, BusTerm& nexus)
     : TimelinePage{}
-    , layout_{new LayoutManager}
+    , layout_{new TimelineLayout}
     , control_{new TimelineController{identity, trackID, nexus, *layout_}}
     {
       UNIMPLEMENTED ("build the timeline UI");
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index 98290fb6f..974ed869f 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -62,6 +62,7 @@
 
 #include "lib/time/timevalue.hpp"
 #include "lib/diff/diff-mutable.hpp"
+#include "lib/nocopy.hpp"
 
 //#include <memory>
 //#include <vector>
@@ -78,7 +79,7 @@ namespace timeline {
   
   using ctrl::BusTerm;
   class TimelineController;
-  class LayoutManager;
+  class TimelineLayout;
   
   /**
    * Interface: GUI page holding a timeline display
@@ -106,8 +107,9 @@ namespace timeline {
    */
   class TimelineWidget
     : public TimelinePage
+    , util::NonCopyable
     {
-      std::unique_ptr<LayoutManager>      layout_;
+      std::unique_ptr<TimelineLayout>     layout_;
       std::unique_ptr<TimelineController> control_;
       
     public:
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 369a7e0c9..bd89a5fbd 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -18288,11 +18288,44 @@
   </body>
 </html></richcontent>
 </node>
+<node CREATED="1540639615789" ID="ID_1775707565" MODIFIED="1540639622736" TEXT="ID des root-Track"/>
 <node CREATED="1480725273775" ID="ID_1495656573" MODIFIED="1518487921081" TEXT="Bus-Term-Referenz"/>
 </node>
 </node>
+<node CREATED="1540639905935" ID="ID_1563220898" MODIFIED="1540639913074" TEXT="zerst&#xf6;ren">
+<node CREATED="1540639914260" ID="ID_1797549156" MODIFIED="1540639923449" TEXT="der Root-Track kann nicht gel&#xf6;scht werden">
+<icon BUILTIN="idea"/>
+<node CREATED="1540639925885" ID="ID_1352494029" MODIFIED="1540639933663" TEXT="das wird bereits auf Diff-Ebene abgewiesen"/>
+<node CREATED="1540639934819" ID="ID_1733133201" MODIFIED="1540639942418" TEXT="...da es sich um ein Attribut-Binding handelt"/>
+<node CREATED="1540639945978" ID="ID_1136500098" MODIFIED="1540640014607" TEXT="(sollte aber auch niemals auftreten)">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...da wir unterstellen, da&#223; das Gegenst&#252;ck im Session-Modell,
+    </p>
+    <p>
+      von dem der Diff ausgeht, ebenfalls den Root-Track als festes Attribut h&#228;lt.
+    </p>
+    <p>
+      Daher sollte eine inkompatible Struktur&#228;nderung &#252;berhaupt nicht auftreten k&#246;nnen
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node CREATED="1540640048428" ID="ID_838010387" MODIFIED="1540640058975" TEXT="nur das gesamte Widget insgesamt">
+<node CREATED="1540640063547" ID="ID_975320950" MODIFIED="1540640069917" TEXT="kaskadiert in nat&#xfc;rlicher Ordnung"/>
+<node CREATED="1540640074705" ID="ID_181154970" MODIFIED="1540640085125" TEXT="Kinder zuerst...">
+<icon BUILTIN="ksmiletris"/>
+</node>
+</node>
+</node>
 <node CREATED="1480725377994" ID="ID_172881069" MODIFIED="1518487921081" TEXT="verwalten">
-<node CREATED="1480741524775" ID="ID_661893589" MODIFIED="1518487921081" TEXT="Bindings einrichten">
+<node COLOR="#338800" CREATED="1480741524775" ID="ID_661893589" MODIFIED="1540639585417" TEXT="Bindings einrichten">
 <icon BUILTIN="button_ok"/>
 </node>
 <node CREATED="1480800574418" ID="ID_791426893" MODIFIED="1518487921081" TEXT="Marker">
@@ -18308,6 +18341,8 @@
 <node COLOR="#435e98" CREATED="1538957611472" ID="ID_1996849782" MODIFIED="1538957931290" TEXT="erwartet gem&#xe4;&#xdf; UI Modell-Schema">
 <arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" STARTARROW="None" STARTINCLINATION="823;93;"/>
 <icon BUILTIN="info"/>
+<node COLOR="#435e98" CREATED="1540639547294" ID="ID_133813709" MODIFIED="1540639561155" TEXT="TimelineID"/>
+<node COLOR="#435e98" CREATED="1540639550757" ID="ID_521896867" MODIFIED="1540639560108" TEXT="Root-TrackID"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_391329400" MODIFIED="1538940840604" TEXT="TimelineController">
@@ -18330,7 +18365,7 @@
 <node CREATED="1480725680713" ID="ID_448125852" MODIFIED="1518487921081" TEXT="Delegate for Notification">
 <icon BUILTIN="help"/>
 </node>
-<node CREATED="1480725704142" ID="ID_992732373" MODIFIED="1518487921081" TEXT="was bleibt abstrakt">
+<node CREATED="1480725704142" ID="ID_992732373" MODIFIED="1540639469012" TEXT="was bleibt abstrakt?">
 <node CREATED="1480725715916" ID="ID_890987188" MODIFIED="1539382658886" TEXT="buildMutator">
 <richcontent TYPE="NOTE"><html>
   <head>
@@ -18351,11 +18386,14 @@
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
+<node CREATED="1540639476279" ID="ID_298401557" MODIFIED="1540639483388" TEXT="vorerst Platzhalter">
+<icon BUILTIN="bell"/>
 </node>
-<node CREATED="1480741498930" ID="ID_1605140473" MODIFIED="1518487921081" TEXT="hat nur einen einziten RootTrack">
+</node>
+<node CREATED="1480741498930" ID="ID_1605140473" MODIFIED="1540639496654" TEXT="hat nur einen einzigen RootTrack">
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1480742405505" FOLDED="true" ID="ID_1590367176" MODIFIED="1540506890163" TEXT="ACHTUNG: leere Sequenz?">
+<node CREATED="1480742405505" FOLDED="true" ID="ID_1590367176" MODIFIED="1540639524195" TEXT="ACHTUNG: leere Sequenz?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18768,6 +18806,26 @@
 <linktarget COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" SOURCE="ID_758873433" STARTARROW="None" STARTINCLINATION="407;0;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1480639469981" ID="ID_983391388" MODIFIED="1518487921082" TEXT="Abstraktionen"/>
+<node CREATED="1540647717236" ID="ID_1682094694" MODIFIED="1540647727446" TEXT="Konzept f&#xfc;r Gr&#xf6;&#xdf;en-Steuerung">
+<node CREATED="1540647728418" ID="ID_71764405" MODIFIED="1540647733562" TEXT="grunds&#xe4;tzlich">
+<node CREATED="1540647743681" ID="ID_344681852" MODIFIED="1540647754201" TEXT="soweit m&#xf6;glich bei der Automatik bleiben">
+<icon BUILTIN="yes"/>
+</node>
+<node COLOR="#435e98" CREATED="1540647761611" ID="ID_841316619" MODIFIED="1540647860261" TEXT="Erweiterungs-Punkte">
+<arrowlink COLOR="#59699c" DESTINATION="ID_1103556230" ENDARROW="Default" ENDINCLINATION="-876;0;" ID="Arrow_ID_72712594" STARTARROW="None" STARTINCLINATION="-1659;0;"/>
+<icon BUILTIN="info"/>
+<node CREATED="1540647890477" ID="ID_347383643" MODIFIED="1540647897303" TEXT="direkt die Properties setzen"/>
+<node CREATED="1540647897963" ID="ID_155000915" MODIFIED="1540647930899" TEXT="an signal_size_allocate() anh&#xe4;ngen"/>
+</node>
+<node CREATED="1540647995231" ID="ID_37565869" MODIFIED="1540648006414" TEXT="wir kontrollieren nur die vertikale Ausdehnung"/>
+<node CREATED="1540648007237" ID="ID_679717206" MODIFIED="1540648024798" TEXT="der Canvas folgt der Header-Struktur">
+<node CREATED="1540648025554" ID="ID_1681608373" MODIFIED="1540648030710" TEXT="diese ist weitgehend automatisch"/>
+<node CREATED="1540648036313" ID="ID_372148054" MODIFIED="1540648044821" TEXT="Quer-Verkoppelung schaffen">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1480639473324" ID="ID_191170582" MODIFIED="1518487921082" TEXT="eval pass"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1306244096" MODIFIED="1538940563330" TEXT="Track-Presenter">
@@ -18993,11 +19051,26 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1999928728" MODIFIED="1538940662367" TEXT="Track-Anzeige">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1999928728" MODIFIED="1540641165004" TEXT="Track-Anzeige">
 <linktarget COLOR="#fec680" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_506785204" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="407;0;"/>
+<linktarget COLOR="#7696bb" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="113;285;" ID="Arrow_ID_198017810" SOURCE="ID_1389266781" STARTARROW="None" STARTINCLINATION="-139;0;"/>
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1480607033512" ID="ID_1815699851" MODIFIED="1518487921082" TEXT="Kopf"/>
-<node CREATED="1480607035712" ID="ID_1405339006" MODIFIED="1518487921082" TEXT="Rumpf"/>
+<node CREATED="1480607033512" ID="ID_1815699851" MODIFIED="1518487921082" TEXT="Kopf">
+<node CREATED="1540641296565" ID="ID_991484939" MODIFIED="1540652852076" TEXT="Navigations-Bereich">
+<arrowlink DESTINATION="ID_1952536945" ENDARROW="Default" ENDINCLINATION="64;0;" ID="Arrow_ID_1459742640" STARTARROW="None" STARTINCLINATION="64;0;"/>
+</node>
+<node CREATED="1540641305092" ID="ID_18552766" MODIFIED="1540652856371" TEXT="Header-Pane">
+<arrowlink DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="50;0;" ID="Arrow_ID_1923805019" STARTARROW="None" STARTINCLINATION="50;0;"/>
+</node>
+</node>
+<node CREATED="1480607035712" ID="ID_1405339006" MODIFIED="1518487921082" TEXT="Rumpf">
+<node CREATED="1540641313667" ID="ID_1952536945" MODIFIED="1540652852075" TEXT="Time-Ruler">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1952536945" ENDARROW="Default" ENDINCLINATION="64;0;" ID="Arrow_ID_1459742640" SOURCE="ID_991484939" STARTARROW="None" STARTINCLINATION="64;0;"/>
+</node>
+<node CREATED="1540641317386" ID="ID_151954769" MODIFIED="1540652856371" TEXT="Canvas">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="50;0;" ID="Arrow_ID_1923805019" SOURCE="ID_18552766" STARTARROW="None" STARTINCLINATION="50;0;"/>
+</node>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_834517953" MODIFIED="1538940576088" TEXT="ClipPresenter">
 <linktarget COLOR="#fec680" DESTINATION="ID_834517953" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_483670351" SOURCE="ID_1570849604" STARTARROW="None" STARTINCLINATION="407;0;"/>
@@ -19040,7 +19113,86 @@
 <node CREATED="1538940690154" ID="ID_1132412756" MODIFIED="1538940691885" TEXT="collapsed"/>
 <node CREATED="1538940692545" ID="ID_1827979765" MODIFIED="1538940694085" TEXT="expanded"/>
 </node>
-<node CREATED="1480607059909" ID="ID_703281238" MODIFIED="1518487921083" TEXT="Control"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480607059909" ID="ID_703281238" MODIFIED="1540639027292" TEXT="Control">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1540639047422" ID="ID_945522690" MODIFIED="1540639061056" TEXT="Timeline insgesamt">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638806886" ID="ID_1690989313" MODIFIED="1540638890861" TEXT="bauen">
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1540639330313" ID="ID_335264895" MODIFIED="1540639371370" TEXT="top-level Population-Diff">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1540639342856" ID="ID_1646839476" MODIFIED="1540639366799" TEXT="ausschlie&#xdf;lich per TimelineWidget-Ctor">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1540639375028" ID="ID_690498169" MODIFIED="1540639381983" TEXT="erzeugt">
+<node CREATED="1540639382945" ID="ID_1389266781" MODIFIED="1540641172028" TEXT="Widget-Struktur">
+<arrowlink COLOR="#7696bb" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="113;285;" ID="Arrow_ID_198017810" STARTARROW="None" STARTINCLINATION="-139;0;"/>
+</node>
+<node CREATED="1540639386795" ID="ID_35543915" MODIFIED="1540639390918" TEXT="Layout-Manager"/>
+<node CREATED="1540639392170" ID="ID_1944083475" MODIFIED="1540639401302" TEXT="(root)-TrackPresenter"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638810920" ID="ID_481615571" MODIFIED="1540638890242" TEXT="zerst&#xf6;ren">
+<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1540640109628" ID="ID_147809215" MODIFIED="1540640128945" TEXT="TODO: TimelineGui (proxy) mu&#xdf; kaskadieren">
+<icon BUILTIN="flag-pink"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540640144175" ID="ID_158939327" MODIFIED="1540640176132" TEXT="Zugang via TimelinePanel">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node CREATED="1540639255700" ID="ID_1855001421" MODIFIED="1540639261031" TEXT="Anzeige..">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639285684" ID="ID_1194974667" MODIFIED="1540639309937" TEXT="Scrollen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639289320" ID="ID_1983393978" MODIFIED="1540639308885" TEXT="Rollen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639291974" ID="ID_1116103118" MODIFIED="1540639308035" TEXT="Zoom">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1540638842100" ID="ID_202893866" MODIFIED="1540638896769" TEXT="Track...">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638853648" ID="ID_1229923831" MODIFIED="1540638888278" TEXT="hinzuf&#xfc;gen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638857930" ID="ID_1666790008" MODIFIED="1540638887606" TEXT="l&#xf6;schen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638882639" ID="ID_334962853" MODIFIED="1540638886927" TEXT="verschieben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638923233" ID="ID_841357096" MODIFIED="1540638933422" TEXT="auf/zuklappen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639232287" ID="ID_294651227" MODIFIED="1540639238304" TEXT="Placement">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1540638984772" ID="ID_166725122" MODIFIED="1540638989225" TEXT="Marker....">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638991848" ID="ID_822413142" MODIFIED="1540639009440" TEXT="platzieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540638996751" ID="ID_1431308221" MODIFIED="1540639008975" TEXT="verschieben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639002174" ID="ID_1757448745" MODIFIED="1540639008498" TEXT="entfernen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1540639065618" ID="ID_619025500" MODIFIED="1540639122522" TEXT="Clip........">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639139572" ID="ID_740288619" MODIFIED="1540639241104" TEXT="einf&#xfc;gen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639160480" ID="ID_1171854695" MODIFIED="1540639241743" TEXT="l&#xf6;schen">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540639189634" ID="ID_836956028" MODIFIED="1540639242288" TEXT="mutieren">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1479434763643" HGAP="48" ID="ID_1572413636" MODIFIED="1518487921083" TEXT="Clip" VSHIFT="32">
@@ -39458,13 +39610,15 @@
 <node CREATED="1535629105141" ID="ID_387236763" MODIFIED="1535629113123" TEXT="Layout">
 <font NAME="SansSerif" SIZE="14"/>
 <node CREATED="1535629144783" ID="ID_603397185" MODIFIED="1535629149074" TEXT="Phasen">
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629169164" ID="ID_1301809885" MODIFIED="1535629197406" TEXT="realized">
-<icon BUILTIN="help"/>
-<node CREATED="1537577511892" ID="ID_194223971" MODIFIED="1537577519599" TEXT="wird sichtbar"/>
-</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629172787" ID="ID_1666976097" MODIFIED="1535629187584" TEXT="mapped">
 <icon BUILTIN="help"/>
 <node CREATED="1537577522482" ID="ID_629476344" MODIFIED="1537577533836" TEXT="einem GDK-Fenster mit Koordinaten zugeordnet"/>
+<node CREATED="1540645314073" ID="ID_1765305895" MODIFIED="1540645326677" TEXT="ausgel&#xf6;st durch show/hide"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535629169164" ID="ID_1301809885" MODIFIED="1540645271529" TEXT="realized">
+<icon BUILTIN="help"/>
+<node CREATED="1537577511892" ID="ID_194223971" MODIFIED="1537577519599" TEXT="wird sichtbar"/>
+<node CREATED="1540645329431" ID="ID_919909299" MODIFIED="1540645361798" TEXT="initial bei Fenster-Allokation; sp&#xe4;ter als Folge von mapped"/>
 </node>
 </node>
 <node CREATED="1535629240762" ID="ID_860094095" MODIFIED="1537576497171" STYLE="fork" TEXT="Platzierung">
@@ -39474,6 +39628,9 @@
 <node CREATED="1535629255856" ID="ID_66989854" MODIFIED="1535630246025" TEXT="size_request">
 <node CREATED="1535629316512" ID="ID_82343540" MODIFIED="1535630246025" TEXT="minimale oder nat&#xfc;rliche Gr&#xf6;&#xdf;e"/>
 <node CREATED="1535629328246" ID="ID_1797361390" MODIFIED="1535630246025" TEXT="Widget wird niemals kleiner gemacht"/>
+<node CREATED="1540647597892" ID="ID_699204853" MODIFIED="1540647691526" TEXT="Widget::queue_resize">
+<arrowlink DESTINATION="ID_1615887419" ENDARROW="Default" ENDINCLINATION="401;-36;" ID="Arrow_ID_1278323856" STARTARROW="None" STARTINCLINATION="1411;0;"/>
+</node>
 </node>
 <node CREATED="1535629360298" ID="ID_872009465" MODIFIED="1535630246025" TEXT="Widget::property_expand()">
 <node CREATED="1535629434440" ID="ID_384811116" MODIFIED="1535630246025" TEXT="bool">
@@ -40411,6 +40568,73 @@
 </node>
 </node>
 </node>
+<node CREATED="1540643603185" ID="ID_1214860125" MODIFIED="1540643607552" TEXT="allgemein">
+<node CREATED="1540643609173" ID="ID_1927927594" MODIFIED="1540643612527" TEXT="Lebenszyklus">
+<node CREATED="1540645438704" ID="ID_1754311679" MODIFIED="1540645440676" TEXT="erzeugen"/>
+<node CREATED="1540645441115" ID="ID_1343924195" MODIFIED="1540645445474" TEXT="verdrahten"/>
+<node CREATED="1540645446023" ID="ID_1278449395" MODIFIED="1540645448986" TEXT="map"/>
+<node CREATED="1540645449535" ID="ID_751713031" MODIFIED="1540645452398" TEXT="realize"/>
+<node CREATED="1540645512438" ID="ID_1832277082" MODIFIED="1540645514362" TEXT="draw"/>
+<node CREATED="1540645490897" ID="ID_1262425717" MODIFIED="1540645493292" TEXT="unrealize"/>
+<node CREATED="1540645493913" ID="ID_1545070072" MODIFIED="1540645496660" TEXT="unmap"/>
+<node CREATED="1540645497224" ID="ID_715226869" MODIFIED="1540645499003" TEXT="destroy"/>
+</node>
+<node CREATED="1540643613003" ID="ID_404660547" MODIFIED="1540643616911" TEXT="virtuelle Methoden">
+<node CREATED="1540643621458" ID="ID_893370871" MODIFIED="1540643626934" TEXT="Widget hat eine Art VTable"/>
+<node CREATED="1540643627593" ID="ID_1653985182" MODIFIED="1540643648235" TEXT="diese Methoden bilden den Lebenszyklus ab"/>
+<node COLOR="#435e98" CREATED="1540643649134" ID="ID_863932581" LINK="https://developer.gnome.org/gtk3/stable/GtkWidget.html#GtkWidgetClass" MODIFIED="1540643665620" TEXT="Doku">
+<font BOLD="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1540647187314" ID="ID_1715030005" MODIFIED="1540647189566" TEXT="C++">
+<node CREATED="1540647217067" ID="ID_470384964" MODIFIED="1540647235266" TEXT="signal_size_allocate()">
+<arrowlink COLOR="#1d47b3" DESTINATION="ID_1813983433" ENDARROW="Default" ENDINCLINATION="124;0;" ID="Arrow_ID_416269388" STARTARROW="None" STARTINCLINATION="58;0;"/>
+</node>
+<node CREATED="1540647190676" ID="ID_1813983433" MODIFIED="1540647235266" TEXT="on_size_allocate (Allocation&amp;)">
+<linktarget COLOR="#1d47b3" DESTINATION="ID_1813983433" ENDARROW="Default" ENDINCLINATION="124;0;" ID="Arrow_ID_416269388" SOURCE="ID_470384964" STARTARROW="None" STARTINCLINATION="58;0;"/>
+</node>
+</node>
+</node>
+<node CREATED="1540645789033" ID="ID_1271246005" MODIFIED="1540645817464" TEXT="Framework-Verbindung">
+<node CREATED="1540645818461" ID="ID_217892151" MODIFIED="1540645822016" TEXT="weitgehend automatisch"/>
+<node CREATED="1540645822628" ID="ID_1316474474" MODIFIED="1540645861502" TEXT="alle Property-&#xc4;nderungen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...f&#252;hren automatisch dazu, da&#223; das Widget
+    </p>
+    <p>
+      ggfs. neu gemapped und invalidiert wird, woraufhin es neu gezeichnet wird
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1540645864503" ID="ID_1092751510" MODIFIED="1540645865599" TEXT="Gtk::Widget::queue_draw_region">
+<node CREATED="1540645872375" ID="ID_925460502" MODIFIED="1540645881728" TEXT="hiermit kann man explizit Neuzeichnen anfordern"/>
+<node CREATED="1540645882388" ID="ID_1140702189" MODIFIED="1540645890310" TEXT="nur n&#xf6;tig bei custom-Draw">
+<icon BUILTIN="yes"/>
+</node>
+</node>
+<node CREATED="1540645903497" ID="ID_1615887419" MODIFIED="1540647691526" TEXT="Gtk::Widget::queue_resize">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_1615887419" ENDARROW="Default" ENDINCLINATION="401;-36;" ID="Arrow_ID_1278323856" SOURCE="ID_699204853" STARTARROW="None" STARTINCLINATION="1411;0;"/>
+<node CREATED="1540645905746" ID="ID_1768274251" MODIFIED="1540645931806" TEXT="wenn das Widget einen ge&#xe4;nderten Size-Request hat"/>
+<node CREATED="1540645971349" ID="ID_1857749199" MODIFIED="1540645986822" TEXT="expliziter Aufruf normalerweise nie notwendig">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+</node>
+<node CREATED="1540646156591" ID="ID_1103556230" MODIFIED="1540647860262" TEXT="Gtk::Widget::size_allocate(Allocation const&amp;) ">
+<linktarget COLOR="#59699c" DESTINATION="ID_1103556230" ENDARROW="Default" ENDINCLINATION="-876;0;" ID="Arrow_ID_72712594" SOURCE="ID_841316619" STARTARROW="None" STARTINCLINATION="-1659;0;"/>
+<node CREATED="1540646197649" ID="ID_1973894224" MODIFIED="1540646206648" TEXT="kann ein Container auf einem Kind-Widget aufrufen"/>
+<node CREATED="1540646207146" ID="ID_781482261" MODIFIED="1540646219378" TEXT="Folge: Framework adjustiert die Allocation (f&#xfc;r Margins)"/>
+<node CREATED="1540646220099" ID="ID_219594395" MODIFIED="1540646249182" TEXT="und ruft die virtuelle Funktion adjust_size_allocation"/>
+<node CREATED="1540646275479" ID="ID_1278063707" MODIFIED="1540646282845" TEXT="und invalideiert -&gt; redraw"/>
+</node>
+</node>
+</node>
 <node CREATED="1477526858307" ID="ID_676269117" MODIFIED="1518487921100" TEXT="custom widget">
 <node COLOR="#ca1b00" CREATED="1477526864162" ID="ID_1385929770" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1518487921100" TEXT="Beispiel">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1385929770" ENDARROW="Default" ENDINCLINATION="1055;0;" ID="Arrow_ID_1314305180" SOURCE="ID_426069181" STARTARROW="None" STARTINCLINATION="1055;0;"/>
@@ -40433,6 +40657,33 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_334736261" ENDARROW="Default" ENDINCLINATION="228;-492;" ID="Arrow_ID_84377619" SOURCE="ID_111059124" STARTARROW="None" STARTINCLINATION="930;-42;"/>
 <icon BUILTIN="info"/>
 </node>
+<node CREATED="1540645596907" ID="ID_783586168" MODIFIED="1540645605245" TEXT="virtuelle Funktionen &#xfc;berlagern">
+<node CREATED="1540645608249" ID="ID_1150066023" MODIFIED="1540645610485" TEXT="on_draw">
+<node CREATED="1540645612137" ID="ID_1200550229" MODIFIED="1540645616076" TEXT="f&#xfc;r custom drawin"/>
+</node>
+</node>
+<node CREATED="1540647442009" ID="ID_303011961" MODIFIED="1540647516091" TEXT="oder: an Signale anh&#xe4;ngen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ist of einfacher und der bevorzugete Weg.
+    </p>
+    <p>
+      Im Besonderen kann man sich an Signale <i>anderer Widgets</i>&#160;anh&#228;ngen
+    </p>
+  </body>
+</html>
+</richcontent>
+<node CREATED="1540647521382" ID="ID_1112354648" MODIFIED="1540647527169" TEXT="signal_draw()">
+<node CREATED="1540647528517" ID="ID_1601064030" MODIFIED="1540647544148" TEXT="man kann den gegebenen Cairo-Kontext &#xe4;ndern">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1540647547755" ID="ID_577859258" MODIFIED="1540647565788" TEXT="die Clip-Region ist auf den tats&#xe4;chlich zu zeichnenden Bereich gesetzt"/>
+</node>
+</node>
 </node>
 <node CREATED="1476375676818" ID="ID_1029920942" MODIFIED="1518487921100" TEXT="Canvas">
 <node CREATED="1476375696215" ID="ID_1397403295" MODIFIED="1518487921100" TEXT="GtkDrawingArea">

From c212ce94ca738af65f31ec753c64c5dc70edfbad Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 28 Oct 2018 01:30:02 +0200
Subject: [PATCH 163/178] Timeline: setup basic widget structure

---
 src/gui/timeline/body-canvas-widget.cpp | 16 ++++++++---
 src/gui/timeline/body-canvas-widget.hpp | 14 ++++++++--
 src/gui/timeline/header-pane-widget.cpp |  7 +++--
 src/gui/timeline/header-pane-widget.hpp |  1 +
 src/gui/timeline/timeline-layout.cpp    |  7 +++--
 src/gui/timeline/timeline-layout.hpp    |  7 +++--
 src/gui/timeline/timeline-widget.cpp    |  2 +-
 wiki/thinkPad.ichthyo.mm                | 36 +++++++++++++++++++++++++
 8 files changed, 75 insertions(+), 15 deletions(-)

diff --git a/src/gui/timeline/body-canvas-widget.cpp b/src/gui/timeline/body-canvas-widget.cpp
index 52d4e8383..ddbf5f2df 100644
--- a/src/gui/timeline/body-canvas-widget.cpp
+++ b/src/gui/timeline/body-canvas-widget.cpp
@@ -57,17 +57,25 @@ namespace timeline {
   
   
   
+  BodyCanvasWidget::~BodyCanvasWidget() { }
   
   
   BodyCanvasWidget::BodyCanvasWidget ()
+    : Gtk::ScrolledWindow{}
+    , canvas_{}
     {
+      this->set_shadow_type(Gtk::SHADOW_IN);
+      this->set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);  // always need a horizontal scrollbar
+      this->property_expand() = true;                               //  dynamically grab any available additional space
+      this->add(canvas_);
+      
+//    canvas_.adjustSize();
+      
+      // show everything....
+      this->show_all();
     }
   
   
-  BodyCanvasWidget::~BodyCanvasWidget()
-  {
-  }
-  
   
   
   
diff --git a/src/gui/timeline/body-canvas-widget.hpp b/src/gui/timeline/body-canvas-widget.hpp
index faf4ca6d4..a979e3060 100644
--- a/src/gui/timeline/body-canvas-widget.hpp
+++ b/src/gui/timeline/body-canvas-widget.hpp
@@ -70,17 +70,27 @@ namespace gui  {
 namespace timeline {
   
   
+  class TimelineCanvas
+    : public Gtk::Layout
+    {
+      
+    };
+  
+  
   /**
    * @todo WIP-WIP as of 12/2016
    */
   class BodyCanvasWidget
+    : public Gtk::ScrolledWindow
     {
+      TimelineCanvas canvas_;
+      
     public:
       BodyCanvasWidget();
      ~BodyCanvasWidget();
-     
+      
     private:/* ===== Internals ===== */
-     
+      
     };
   
   
diff --git a/src/gui/timeline/header-pane-widget.cpp b/src/gui/timeline/header-pane-widget.cpp
index 6590e3e4e..c16aec2ec 100644
--- a/src/gui/timeline/header-pane-widget.cpp
+++ b/src/gui/timeline/header-pane-widget.cpp
@@ -58,16 +58,15 @@ namespace timeline {
   
   
   
+  HeaderPaneWidget::~HeaderPaneWidget() { }
+  
   
   HeaderPaneWidget::HeaderPaneWidget ()
+    : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
     {
     }
   
   
-  HeaderPaneWidget::~HeaderPaneWidget()
-  {
-  }
-  
   
   
   
diff --git a/src/gui/timeline/header-pane-widget.hpp b/src/gui/timeline/header-pane-widget.hpp
index ef4bf8a29..a9feeaf16 100644
--- a/src/gui/timeline/header-pane-widget.hpp
+++ b/src/gui/timeline/header-pane-widget.hpp
@@ -60,6 +60,7 @@ namespace timeline {
    * @todo WIP-WIP as of 12/2016
    */
   class HeaderPaneWidget
+    : public Gtk::Box
     {
     public:
       HeaderPaneWidget();
diff --git a/src/gui/timeline/timeline-layout.cpp b/src/gui/timeline/timeline-layout.cpp
index a57284a1b..b2c527eec 100644
--- a/src/gui/timeline/timeline-layout.cpp
+++ b/src/gui/timeline/timeline-layout.cpp
@@ -61,10 +61,13 @@ namespace timeline {
   
   TimelineLayout::~TimelineLayout() { }
   
-  TimelineLayout::TimelineLayout ()
-    : headerPane_{}
+  TimelineLayout::TimelineLayout (Gtk::Paned& topLevelContainer)
+    : paneSplitPosition_{topLevelContainer.property_position()}
+    , headerPane_{}
     , bodyCanvas_{}
     {
+      topLevelContainer.add1 (headerPane_);
+      topLevelContainer.add2 (bodyCanvas_);
     }
   
   
diff --git a/src/gui/timeline/timeline-layout.hpp b/src/gui/timeline/timeline-layout.hpp
index b7b714f60..892958014 100644
--- a/src/gui/timeline/timeline-layout.hpp
+++ b/src/gui/timeline/timeline-layout.hpp
@@ -105,14 +105,17 @@ namespace timeline {
    */
   class TimelineLayout
     {
+      Glib::PropertyProxy<int> paneSplitPosition_;
+      
       HeaderPaneWidget headerPane_;
       BodyCanvasWidget bodyCanvas_;
       
+      
     public:
-      TimelineLayout ();
+      TimelineLayout (Gtk::Paned&);
      ~TimelineLayout();
       
-      void installRootTrack(TrackHeadWidget&,TrackBody&);
+      void installRootTrack (TrackHeadWidget&,TrackBody&);
       
     private:/* ===== Internals ===== */
      
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index be1d6f0fe..1c8b62dd1 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -69,7 +69,7 @@ namespace timeline {
   
   TimelineWidget::TimelineWidget (BusTerm::ID identity, BusTerm::ID trackID, BusTerm& nexus)
     : TimelinePage{}
-    , layout_{new TimelineLayout}
+    , layout_{new TimelineLayout{*this}}
     , control_{new TimelineController{identity, trackID, nexus, *layout_}}
     {
       UNIMPLEMENTED ("build the timeline UI");
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index bd89a5fbd..88d3146d4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19058,9 +19058,17 @@
 <node CREATED="1480607033512" ID="ID_1815699851" MODIFIED="1518487921082" TEXT="Kopf">
 <node CREATED="1540641296565" ID="ID_991484939" MODIFIED="1540652852076" TEXT="Navigations-Bereich">
 <arrowlink DESTINATION="ID_1952536945" ENDARROW="Default" ENDINCLINATION="64;0;" ID="Arrow_ID_1459742640" STARTARROW="None" STARTINCLINATION="64;0;"/>
+<node CREATED="1540682850119" HGAP="39" ID="ID_1885212949" MODIFIED="1540682870351" TEXT="Grid?"/>
 </node>
 <node CREATED="1540641305092" ID="ID_18552766" MODIFIED="1540652856371" TEXT="Header-Pane">
 <arrowlink DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="50;0;" ID="Arrow_ID_1923805019" STARTARROW="None" STARTINCLINATION="50;0;"/>
+<node CREATED="1540682883065" HGAP="94" ID="ID_1549568084" MODIFIED="1540682891807" TEXT="2.Box" VSHIFT="12">
+<node CREATED="1540682893097" ID="ID_419298158" MODIFIED="1540682899815" TEXT="interne Struktur?">
+<icon BUILTIN="help"/>
+<node CREATED="1540682901320" ID="ID_1054686680" MODIFIED="1540682907481" TEXT="stacked boxes?"/>
+<node CREATED="1540682908088" ID="ID_785207504" MODIFIED="1540682916074" TEXT="table grid?"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1480607035712" ID="ID_1405339006" MODIFIED="1518487921082" TEXT="Rumpf">
@@ -35671,6 +35679,34 @@
 </node>
 </node>
 </node>
+<node CREATED="1540682664865" ID="ID_1702211999" MODIFIED="1540682668371" TEXT="Metaprogramming">
+<node CREATED="1540682674455" ID="ID_1625152878" MODIFIED="1540682679322" TEXT="Typliste filtern">
+<node CREATED="1540682680286" ID="ID_1172485112" MODIFIED="1540682685721" TEXT="nach canConvert">
+<node CREATED="1540682731631" ID="ID_1059841081" MODIFIED="1540682746102" TEXT="die Typen, in die man umwandeln kann">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1540682747461" ID="ID_1097757447" MODIFIED="1540682763478" TEXT="sinnvoll zum Binden an Rec&lt;GenNode&gt;">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1540682686558" ID="ID_349304672" MODIFIED="1540682729346" TEXT="aber das eigentliche Problem ist...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...wie bekommt man dann den konvertierten Wert 'raus.
+    </p>
+    <p>
+      Visitor ist entweder void, oder bool
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+</node>
 </node>
 <node CREATED="1482524641484" ID="ID_1651495185" MODIFIED="1518487921096" TEXT="Architektur">
 <node CREATED="1531419748046" ID="ID_1791265013" MODIFIED="1531419752937" TEXT="Lebenszyklus">

From 3dd3fc7810da68a7cc9d9d99d21877221e107b3f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 28 Oct 2018 01:56:24 +0200
Subject: [PATCH 164/178] Timeline: decide upon the organisation of the header
 pane

we'll uses a recursive structure here, based on nested grids
---
 src/gui/timeline/header-pane-widget.cpp |  6 +++-
 src/gui/timeline/header-pane-widget.hpp | 11 +++++++
 src/gui/timeline/navigator-widget.cpp   | 13 ++++-----
 src/gui/timeline/navigator-widget.hpp   |  1 +
 src/gui/timeline/patchbay-widget.cpp    | 12 ++++----
 src/gui/timeline/patchbay-widget.hpp    |  5 ++++
 wiki/thinkPad.ichthyo.mm                | 39 ++++++++++++++++++-------
 7 files changed, 62 insertions(+), 25 deletions(-)

diff --git a/src/gui/timeline/header-pane-widget.cpp b/src/gui/timeline/header-pane-widget.cpp
index c16aec2ec..20ff839af 100644
--- a/src/gui/timeline/header-pane-widget.cpp
+++ b/src/gui/timeline/header-pane-widget.cpp
@@ -61,9 +61,13 @@ namespace timeline {
   HeaderPaneWidget::~HeaderPaneWidget() { }
   
   
-  HeaderPaneWidget::HeaderPaneWidget ()
+  HeaderPaneWidget::HeaderPaneWidget()
     : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
+    , navigator_{}
+    , patchbay_{}
     {
+      this->pack_start (navigator_, Gtk::PACK_SHRINK);
+      this->pack_start (patchbay_, Gtk::PACK_EXPAND_WIDGET);
     }
   
   
diff --git a/src/gui/timeline/header-pane-widget.hpp b/src/gui/timeline/header-pane-widget.hpp
index a9feeaf16..13fa742f9 100644
--- a/src/gui/timeline/header-pane-widget.hpp
+++ b/src/gui/timeline/header-pane-widget.hpp
@@ -35,6 +35,12 @@
  ** with the timeline::LayoutManager to work out the space available for each individual track head
  ** and to keep these parts aligned with the tracks in the [timeline body](\ref BodyCanvasWidget).
  ** 
+ ** The header area is shown at the left side of the timeline display, always visible.
+ ** At the top of the header area, corresponding to the time ruler within the body at the right,
+ ** we place a compact navigation control, including also the timecode display. The space below
+ ** is kept in sync with the respective track entries of the timeline, and is itself built as
+ ** a nested structure of PatchbayWidget entries.
+ ** 
  ** @todo WIP-WIP-WIP as of 12/2016
  ** 
  */
@@ -44,6 +50,8 @@
 #define GUI_TIMELINE_HEADER_PANE_WIDGET_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/timeline/navigator-widget.hpp"
+#include "gui/timeline/patchbay-widget.hpp"
 
 //#include "lib/util.hpp"
 
@@ -62,6 +70,9 @@ namespace timeline {
   class HeaderPaneWidget
     : public Gtk::Box
     {
+      NavigatorWidget navigator_;
+      PatchbayWidget patchbay_;
+      
     public:
       HeaderPaneWidget();
      ~HeaderPaneWidget();
diff --git a/src/gui/timeline/navigator-widget.cpp b/src/gui/timeline/navigator-widget.cpp
index 8559fbe65..eade9c30f 100644
--- a/src/gui/timeline/navigator-widget.cpp
+++ b/src/gui/timeline/navigator-widget.cpp
@@ -60,14 +60,13 @@ namespace timeline {
   
   
   
+  
+  NavigatorWidget::~NavigatorWidget() { }
+  
+  
   NavigatorWidget::NavigatorWidget ()
-    {
-    }
-  
-  
-  NavigatorWidget::~NavigatorWidget()
-  {
-  }
+    : Gtk::Grid{}
+    { }
   
   
   
diff --git a/src/gui/timeline/navigator-widget.hpp b/src/gui/timeline/navigator-widget.hpp
index 4eb021125..791798a30 100644
--- a/src/gui/timeline/navigator-widget.hpp
+++ b/src/gui/timeline/navigator-widget.hpp
@@ -58,6 +58,7 @@ namespace timeline {
    * @todo WIP-WIP as of 12/2016
    */
   class NavigatorWidget
+    : public Gtk::Grid
     {
     public:
       NavigatorWidget ();
diff --git a/src/gui/timeline/patchbay-widget.cpp b/src/gui/timeline/patchbay-widget.cpp
index 32496d6b7..62c10a336 100644
--- a/src/gui/timeline/patchbay-widget.cpp
+++ b/src/gui/timeline/patchbay-widget.cpp
@@ -60,14 +60,12 @@ namespace timeline {
   
   
   
+  PatchbayWidget::~PatchbayWidget() { }
+  
+  
   PatchbayWidget::PatchbayWidget ()
-    {
-    }
-  
-  
-  PatchbayWidget::~PatchbayWidget()
-  {
-  }
+    : Gtk::Grid{}
+    { }
   
   
   
diff --git a/src/gui/timeline/patchbay-widget.hpp b/src/gui/timeline/patchbay-widget.hpp
index f172d10be..2d232afaf 100644
--- a/src/gui/timeline/patchbay-widget.hpp
+++ b/src/gui/timeline/patchbay-widget.hpp
@@ -59,9 +59,14 @@ namespace timeline {
   
   
   /**
+   * Header pane control area corresponding to a Track with nested child Tracks.
+   * This structure is used recursively to build up the Fork of nested Tracks.
+   * - first row: Placement + Property pane
+   * - second row: content or nested tracks.
    * @todo WIP-WIP as of 12/2016
    */
   class PatchbayWidget
+    : public Gtk::Grid
     {
     public:
       PatchbayWidget ();
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 88d3146d4..6d9e8cfae 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19056,17 +19056,36 @@
 <linktarget COLOR="#7696bb" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="113;285;" ID="Arrow_ID_198017810" SOURCE="ID_1389266781" STARTARROW="None" STARTINCLINATION="-139;0;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1480607033512" ID="ID_1815699851" MODIFIED="1518487921082" TEXT="Kopf">
-<node CREATED="1540641296565" ID="ID_991484939" MODIFIED="1540652852076" TEXT="Navigations-Bereich">
+<node CREATED="1540684299064" ID="ID_1911781593" MODIFIED="1540684308285" TEXT="Header-Pane">
+<node CREATED="1540641296565" HGAP="31" ID="ID_991484939" MODIFIED="1540684324322" TEXT="NavigationWidget" VSHIFT="40">
 <arrowlink DESTINATION="ID_1952536945" ENDARROW="Default" ENDINCLINATION="64;0;" ID="Arrow_ID_1459742640" STARTARROW="None" STARTINCLINATION="64;0;"/>
-<node CREATED="1540682850119" HGAP="39" ID="ID_1885212949" MODIFIED="1540682870351" TEXT="Grid?"/>
+<node CREATED="1540682850119" HGAP="39" ID="ID_1885212949" MODIFIED="1540683945028" TEXT="ein Grid">
+<icon BUILTIN="yes"/>
 </node>
-<node CREATED="1540641305092" ID="ID_18552766" MODIFIED="1540652856371" TEXT="Header-Pane">
-<arrowlink DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="50;0;" ID="Arrow_ID_1923805019" STARTARROW="None" STARTINCLINATION="50;0;"/>
-<node CREATED="1540682883065" HGAP="94" ID="ID_1549568084" MODIFIED="1540682891807" TEXT="2.Box" VSHIFT="12">
-<node CREATED="1540682893097" ID="ID_419298158" MODIFIED="1540682899815" TEXT="interne Struktur?">
+</node>
+<node CREATED="1540641305092" HGAP="50" ID="ID_18552766" MODIFIED="1540684353686" TEXT="PatchbayWidget" VSHIFT="-2">
+<arrowlink DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="68;9;" ID="Arrow_ID_1923805019" STARTARROW="None" STARTINCLINATION="110;25;"/>
+<node CREATED="1540682893097" HGAP="65" ID="ID_419298158" MODIFIED="1540684338784" TEXT="interne Struktur?" VSHIFT="11">
 <icon BUILTIN="help"/>
-<node CREATED="1540682901320" ID="ID_1054686680" MODIFIED="1540682907481" TEXT="stacked boxes?"/>
-<node CREATED="1540682908088" ID="ID_785207504" MODIFIED="1540682916074" TEXT="table grid?"/>
+<node CREATED="1540682901320" ID="ID_1054686680" MODIFIED="1540684245713" TEXT="stacked boxes?">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1540682908088" ID="ID_785207504" MODIFIED="1540684245713" TEXT="table grid?">
+<icon BUILTIN="button_cancel"/>
+</node>
+<node CREATED="1540683803329" ID="ID_290204038" MODIFIED="1540684245713" TEXT="rekursive Struktur">
+<icon BUILTIN="forward"/>
+<node CREATED="1540683824278" ID="ID_1473337838" MODIFIED="1540684245714" TEXT="ein Grid mit 4 Feldern">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1540683889813" ID="ID_1511067098" MODIFIED="1540684245714" TEXT="2.Quadrant == Placement-Symbol"/>
+<node CREATED="1540683900716" ID="ID_212914080" MODIFIED="1540684245714" TEXT="1.Quadrant == Controls"/>
+<node CREATED="1540683916490" ID="ID_191999039" MODIFIED="1540684245714" TEXT="3.Quadrand : leer (Fork)"/>
+<node CREATED="1540683829267" ID="ID_828415712" MODIFIED="1540684245714" TEXT="in 4.Quadrant kommt">
+<node CREATED="1540683866753" ID="ID_616355214" MODIFIED="1540684245714" TEXT="entweder content control"/>
+<node CREATED="1540683879103" ID="ID_96481889" MODIFIED="1540684245714" TEXT="oder ein nested HeaderPane"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -19075,8 +19094,8 @@
 <node CREATED="1540641313667" ID="ID_1952536945" MODIFIED="1540652852075" TEXT="Time-Ruler">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1952536945" ENDARROW="Default" ENDINCLINATION="64;0;" ID="Arrow_ID_1459742640" SOURCE="ID_991484939" STARTARROW="None" STARTINCLINATION="64;0;"/>
 </node>
-<node CREATED="1540641317386" ID="ID_151954769" MODIFIED="1540652856371" TEXT="Canvas">
-<linktarget COLOR="#a9b4c1" DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="50;0;" ID="Arrow_ID_1923805019" SOURCE="ID_18552766" STARTARROW="None" STARTINCLINATION="50;0;"/>
+<node CREATED="1540641317386" ID="ID_151954769" MODIFIED="1540684353686" TEXT="Canvas">
+<linktarget COLOR="#a9b4c1" DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="68;9;" ID="Arrow_ID_1923805019" SOURCE="ID_18552766" STARTARROW="None" STARTINCLINATION="110;25;"/>
 </node>
 </node>
 </node>

From 8803af1a0a2b151c4b3f2d39d155d6e6ffad7af9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sun, 28 Oct 2018 18:56:04 +0100
Subject: [PATCH 165/178] Timeline: further steps towards attaching the widget
 structure

---
 src/gui/dialog/test-control.hpp         |  2 +-
 src/gui/timeline/body-canvas-widget.cpp | 16 +++++
 src/gui/timeline/body-canvas-widget.hpp |  5 ++
 src/gui/timeline/header-pane-widget.cpp | 77 -------------------------
 src/gui/timeline/header-pane-widget.hpp | 27 ++++++++-
 src/gui/timeline/patchbay-widget.cpp    | 16 +++++
 src/gui/timeline/patchbay-widget.hpp    | 11 +++-
 src/gui/timeline/timeline-layout.cpp    | 11 +++-
 src/gui/timeline/timeline-layout.hpp    |  6 +-
 src/gui/timeline/timeline-widget.hpp    | 10 ++--
 wiki/renderengine.html                  | 56 +++++++++++-------
 wiki/thinkPad.ichthyo.mm                | 44 ++++++++++++--
 12 files changed, 163 insertions(+), 118 deletions(-)
 delete mode 100644 src/gui/timeline/header-pane-widget.cpp

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index 37631f597..d17f6b857 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -351,9 +351,9 @@ namespace dialog {
           // construct and wire the pages...
           notebook_.buildPage<Page1> (_("#1099"), uiBus_);
           notebook_.buildPage<Page2> (_("Populate"), uiBus_);
-          notebook_.set_current_page(-1);
           
           show_all();
+          notebook_.set_current_page(-1);
         }
     };
   
diff --git a/src/gui/timeline/body-canvas-widget.cpp b/src/gui/timeline/body-canvas-widget.cpp
index ddbf5f2df..10e06f7be 100644
--- a/src/gui/timeline/body-canvas-widget.cpp
+++ b/src/gui/timeline/body-canvas-widget.cpp
@@ -31,6 +31,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/timeline/body-canvas-widget.hpp"
+#include "gui/timeline/track-body.hpp"
 
 //#include "gui/ui-bus.hpp"
 //#include "lib/format-string.hpp"
@@ -77,6 +78,21 @@ namespace timeline {
   
   
   
+  /**
+   * The Lumiera Timeline model does not rely on a list of tracks, as most conventional video editing software does --
+   * rather, each sequence holds a _fork of nested scopes._ This recursively nested structure is reflected in the way
+   * we organise and draw the timeline representation onto the TimelineCanvas: we use an intermediary entity, the TrackBody
+   * as an organisational grouping device, even while we draw _all of the timeline representation_ onto a single global
+   * ::canvas_ within the (scrollable) BodyCanvasWidget. Thus, adding the first TrackBody to represent the root track
+   * of a Timeline, will also prepare the grounding for any other nested entities to be drawn on top.
+   */
+  void
+  BodyCanvasWidget::installForkRoot (TrackBody& rootTrackHead)
+  {
+    UNIMPLEMENTED ("how actually to represent the track bode on the canvas");
+  }
+
+  
   
   
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/body-canvas-widget.hpp b/src/gui/timeline/body-canvas-widget.hpp
index a979e3060..47d68e5e2 100644
--- a/src/gui/timeline/body-canvas-widget.hpp
+++ b/src/gui/timeline/body-canvas-widget.hpp
@@ -69,6 +69,8 @@
 namespace gui  {
 namespace timeline {
   
+  class TrackBody;
+  
   
   class TimelineCanvas
     : public Gtk::Layout
@@ -89,6 +91,9 @@ namespace timeline {
       BodyCanvasWidget();
      ~BodyCanvasWidget();
       
+      /** @internal Initially install the contents corresponding to the root track fork */
+      void installForkRoot (TrackBody& rootTrackBody);
+      
     private:/* ===== Internals ===== */
       
     };
diff --git a/src/gui/timeline/header-pane-widget.cpp b/src/gui/timeline/header-pane-widget.cpp
deleted file mode 100644
index 20ff839af..000000000
--- a/src/gui/timeline/header-pane-widget.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
-  HeaderPaneWidget  -  display pane for track headers within the timeline
-
-  Copyright (C)         Lumiera.org
-    2016,               Hermann Vosseler <Ichthyostega@web.de>
-
-  This program is free software; you can redistribute it and/or
-  modify it under the terms of the GNU General Public License as
-  published by the Free Software Foundation; either version 2 of
-  the License, or (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-* *****************************************************/
-
-
-/** @file header-pane-widget.cpp
- ** Implementation of the track header pane within the timeline UI.
- ** 
- ** @todo WIP-WIP-WIP as of 12/2016
- ** 
- */
-
-
-#include "gui/gtk-base.hpp"
-#include "gui/timeline/header-pane-widget.hpp"
-
-//#include "gui/ui-bus.hpp"
-//#include "lib/format-string.hpp"
-//#include "lib/format-cout.hpp"
-
-//#include "lib/util.hpp"
-
-//#include <algorithm>
-//#include <vector>
-
-
-
-//using util::_Fmt;
-//using util::contains;
-//using Gtk::Widget;
-//using sigc::mem_fun;
-//using sigc::ptr_fun;
-//using std::cout;
-//using std::endl;
-
-
-namespace gui {
-namespace timeline {
-  
-  
-  
-  
-  HeaderPaneWidget::~HeaderPaneWidget() { }
-  
-  
-  HeaderPaneWidget::HeaderPaneWidget()
-    : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
-    , navigator_{}
-    , patchbay_{}
-    {
-      this->pack_start (navigator_, Gtk::PACK_SHRINK);
-      this->pack_start (patchbay_, Gtk::PACK_EXPAND_WIDGET);
-    }
-  
-  
-  
-  
-  
-}}// namespace gui::timeline
diff --git a/src/gui/timeline/header-pane-widget.hpp b/src/gui/timeline/header-pane-widget.hpp
index 13fa742f9..3b5b6add0 100644
--- a/src/gui/timeline/header-pane-widget.hpp
+++ b/src/gui/timeline/header-pane-widget.hpp
@@ -63,6 +63,8 @@
 namespace gui  {
 namespace timeline {
   
+  class TrackHeadWidget;
+  
   
   /**
    * @todo WIP-WIP as of 12/2016
@@ -74,9 +76,28 @@ namespace timeline {
       PatchbayWidget patchbay_;
       
     public:
-      HeaderPaneWidget();
-     ~HeaderPaneWidget();
-     
+     ~HeaderPaneWidget() { }
+      
+      HeaderPaneWidget()
+        : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
+        , navigator_{}
+        , patchbay_{}
+        {
+          this->pack_start (navigator_, Gtk::PACK_SHRINK);
+          this->pack_start (patchbay_, Gtk::PACK_EXPAND_WIDGET);
+        }
+      
+      /**
+       * Initially install the root node of the track fork,
+       * which later can be extended recursively by adding nested
+       * sub-forks ("Sub-Tracks").
+       */
+      void
+      installForkRoot (TrackHeadWidget& rootTrackHead)
+        {
+          patchbay_.installFork (rootTrackHead);
+        }
+      
     private:/* ===== Internals ===== */
      
     };
diff --git a/src/gui/timeline/patchbay-widget.cpp b/src/gui/timeline/patchbay-widget.cpp
index 62c10a336..01cfa6617 100644
--- a/src/gui/timeline/patchbay-widget.cpp
+++ b/src/gui/timeline/patchbay-widget.cpp
@@ -68,6 +68,22 @@ namespace timeline {
     { }
   
   
+  /**
+   * The Lumiera Timeline model does not rely on a list of tracks, as most conventional
+   * video editing software does -- rather, each sequence holds a _fork of nested scopes._
+   * This recursively nested structure is reflected in the patchbay area corresponding to
+   * each track in the _header pane_ of the timeline display, located to the left. The
+   * patchbay for each track is a grid with four quadrants, and the 4th quadrant is the
+   * _content area,_ which is recursively extended to hold nested PatchbayWidget elements,
+   * corresponding to the child tracks of this track. To _fund_ this recursively extensible
+   * structure, we need to set up the first four quadrants
+   */
+  void
+  PatchbayWidget::installFork (TrackHeadWidget& rootTrackHead)
+  {
+    UNIMPLEMENTED ("how actually to represent the track in the patchbay");
+  }
+  
   
   
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/patchbay-widget.hpp b/src/gui/timeline/patchbay-widget.hpp
index 2d232afaf..42c33b4f1 100644
--- a/src/gui/timeline/patchbay-widget.hpp
+++ b/src/gui/timeline/patchbay-widget.hpp
@@ -56,7 +56,9 @@
 
 namespace gui  {
 namespace timeline {
-  
+    
+  class TrackHeadWidget;
+
   
   /**
    * Header pane control area corresponding to a Track with nested child Tracks.
@@ -69,9 +71,12 @@ namespace timeline {
     : public Gtk::Grid
     {
     public:
-      PatchbayWidget ();
+      PatchbayWidget();
      ~PatchbayWidget();
-     
+      
+      /** @internal Initially install the contents corresponding to this track fork */
+      void installFork (TrackHeadWidget& rootTrackHead);
+      
     private:/* ===== Internals ===== */
      
     };
diff --git a/src/gui/timeline/timeline-layout.cpp b/src/gui/timeline/timeline-layout.cpp
index b2c527eec..a4fbface5 100644
--- a/src/gui/timeline/timeline-layout.cpp
+++ b/src/gui/timeline/timeline-layout.cpp
@@ -71,10 +71,19 @@ namespace timeline {
     }
   
   
+  /**
+   * This function is invoked once for each new TimelineWidget, in order to build the
+   * starting point for the track widget structure, which then can be extended recursively
+   * to add further nested tracks. The central problem for this widget hierarchy is that
+   * we have to build two matching structures in parallel...
+   * - the track header area ("patchbay")
+   * - the corresponding track body with actual content (clips)
+   */
   void
   TimelineLayout::installRootTrack(TrackHeadWidget& head, TrackBody& body)
   {
-    UNIMPLEMENTED ("attach the widgets for the root track display");
+    headerPane_.installForkRoot (head);
+    bodyCanvas_.installForkRoot (body);
   }
   
 
diff --git a/src/gui/timeline/timeline-layout.hpp b/src/gui/timeline/timeline-layout.hpp
index 892958014..2f513eb3c 100644
--- a/src/gui/timeline/timeline-layout.hpp
+++ b/src/gui/timeline/timeline-layout.hpp
@@ -101,7 +101,10 @@ namespace timeline {
   
   
   /**
-   * @todo WIP-WIP as of 12/2016
+   * Top-level anchor point for the timeline display (widgets).
+   * The central entity to organise concerns relevant for the presentation of the
+   * Timeline as a whole, as opposed to rendering individual tracks as part of the Timeline.
+   * @todo WIP-WIP as of 10/2018
    */
   class TimelineLayout
     {
@@ -115,6 +118,7 @@ namespace timeline {
       TimelineLayout (Gtk::Paned&);
      ~TimelineLayout();
       
+      /** @internal anchor the display of the root track into the two display panes */
       void installRootTrack (TrackHeadWidget&,TrackBody&);
       
     private:/* ===== Internals ===== */
diff --git a/src/gui/timeline/timeline-widget.hpp b/src/gui/timeline/timeline-widget.hpp
index 974ed869f..12f39757e 100644
--- a/src/gui/timeline/timeline-widget.hpp
+++ b/src/gui/timeline/timeline-widget.hpp
@@ -33,13 +33,13 @@
  ** to a single session::Timeline, known by its ID. The widget creates a TimelineController
  ** right away, which takes initiative to populate the display with that Timeline's contents.
  ** 
- ** #Lifecycle
+ ** # Lifecycle
  ** The assumption is that any element creation and deletion is triggered through messages over
  ** the [UI-Bus](\ref ui-bus.hpp). So there will be a _parent element,_ corresponding to the
- ** ["model root"](\ref session::Root), and this parent, in response to some mutation message,
- ** will create a TimelineWidget, add it into the appropriate GTK display setup and manage it
- ** as child element; the [construction parameters](\ref TimelineWidget::TimelineWidget] ensure
- ** it gets connected to the bus as well. Incidentally, this assumption also implies that
+ ** [model root](\ref proc::mobject::session::Root), and this parent, in response to some
+ ** mutation message, will create a TimelineWidget, add it into the appropriate GTK display setup
+ ** and manage it as child element; the [construction parameters](\ref TimelineWidget::TimelineWidget)
+ ** ensure it gets connected to the bus as well. Incidentally, this assumption also implies that
  ** this parent element has set up a _binding for diff mutation,_ typically by implementing
  ** model::Tangible::buildMutator. And further on this means that the parent will also
  ** destroy the TimelineWidget, prompted by a message to that end. All deregistration
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index ec3356728..85fd96bf2 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2691,12 +2691,12 @@ As starting point, {{red{in winter 2016/17}}} the old (broken) timeline panel wa
 After that initial experiments, my focus shifted to the still unsatisfactory top-level UI structure, and I am working towards an initial integration with Proc-Layer since then.
 </pre>
 </div>
-<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201810071842" tags="GuiPattern design draft" changecount="27">
+<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201810281742" tags="GuiPattern design draft" changecount="29">
 <pre>//The representation of a [[media clip|Clip]] for manipulation by the user within the UI.//
 Within Lumiera, a clip is conceived as a //chunk of media,// which can be handled in compound. Clip as such is an abstract concept, which is treated with minimal assumptions...
-* we know that a clip has //media content,// which need not be uniform and can be inherently structured (e.g. several media, several channels)
+* we know that a clip has //media content,// which need not be uniform and can be inherently structured (e.g. several media, several channels, a processing function)
 * like anything within a timeline, a clip has a temporal extension (but not necessarily finite; it can //not be zero,// but it can be infinite)
-* by virtue of [[Placement]], a clip acquires a time position.
+* by virtue of [[Placement]], a clip acquires a time position. (&amp;rarr; GuiPlacementDisplay)
 Due to this unspecific nature, a clip might take on various //appearances// within the UI.
 
 !clip appearances
@@ -3393,6 +3393,15 @@ The most fundamental principle is that of ''subsidiarity'': we understand both &
 Based on these foundations, we shape and form the core part of the interface, which is the [[timeline display|GuiTimelineView]]
 </pre>
 </div>
+<div title="GuiPlacementDisplay" creator="Ichthyostega" modifier="Ichthyostega" created="201810281744" modified="201810281751" tags="spec GuiPattern draft" changecount="2">
+<pre>A cross-cutting and somewhat tricky concern is how to represent and expose the [[MObject Placements|Placement]] within the UI.
+For one, a Placement is a set of rules picked up from enclosing scopes -- and it is one of the most fundamental traits of Lumiera that the user is able to edit those placement rules. Yet the combination and final application of those rules also materialises itself into actual properties of the objects of the edit session -- most notably the time position of any element. Consequently, parts of the Placement are unfolded to appear as properties of the placed object, as far as the UI representation is concerned. However, Placement as a generic building block is prominently exposed, insofar pretty much every entity you'll see in the UI has the ability to &quot;edit its placement&quot;. This is indicated by a characteristic Icon decoration, leading to a common placement editor, where the user can
+* see all the explicitly given locating pins
+* see the effective, resulting ExplicitPlacement
+* add and manipulate existing rules
+To support this generic setup, pretty much every UI element needs to be outfitted with a &quot;placement&quot; attribute, to reflect those distinct information to be exposed in aforementioned placement edit UI.
+</pre>
+</div>
 <div title="GuiStart" modifier="Ichthyostega" created="200812050525" modified="201808070201" tags="GuiIntegration GuiPattern" changecount="9">
 <pre>Starting up the GUI is optional and is considered part of the Application start/stop and lifecycle.
 * main and {{{lumiera::AppState}}} activate the lifecyle methods on the ~GuiSubsysDescriptor, accessible via the GuiFacade
@@ -3448,7 +3457,7 @@ Now, since we build our UI on the notion of mapping session contents via a messa
 
 In any case, this is an advanced topic, and nowhere near trivial. It seems reasonable to reject opening duplicate timeline presentations as a first step, and then address this topic way later, when we've gained sufficient knowledge regarding all the subtleties of timeline presentation and editing.</pre>
 </div>
-<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810111203" tags="GuiPattern design decision draft img" changecount="55">
+<div title="GuiTimelineView" creator="Ichthyostega" modifier="Ichthyostega" created="201410160100" modified="201810281754" tags="GuiPattern design decision draft img" changecount="58">
 <pre>Within the Lumieara GUI, the [[Timeline]] structure(s) from the HighLevelModel are arranged and presented according to the following principles and conventions.
 Several timeline views may be present at the same time -- and there is not necessarily a relation between them, since »a Timeline« is the top-level concept within the [[Session]]. Obviously, there can also be several //views// based on the same »Timeline« model element, and in this latter case, these //coupled views// behave according to a linked common state. An entity »Timeline« as represented through the GUI, emerges from the combination of several model elements
 * a root level [[Binding|BindingMO]] acts as framework
@@ -3482,10 +3491,13 @@ This collapsed, expanded and possibly nested workspace structure is always exact
 !!!lifecycle and instances
 A given instance of the {{{TimelineWidget}}} is always dedicated to render the contents of //one specific timeline.// We never switch the data model while retaining the UI entities. This also means, a given instance is tied to one conversation with the core; it is created when the core tells us about this timeline with an initial population diff, and it lives until either this timeline is discarded in the core model, or the whole session is shut down.
 
-The dockable ''timeline pannel'' holds onto the existing {{{TimelineWidget}}} instances, allowing to make one of them visible for interaction. Yet the timeline itself is represented by the {{{TimelineControler}}}, which lives //within this widget,// and is attached to and managed by the InteractionDirector, who incorporates the role of representing the [[model root|ModelRootMO]]. Aside of the timeline display, there is also an ''asset pannel''; display of and interaction with those asset views is handled by dedicated widgets, backed by the {{{AssetControler}}} -- which is also a child of and managed by the InteractionDirector, since assets are modelled as global part of the [[Session]].
+The dockable ''timeline pannel'' holds onto the existing {{{TimelineWidget}}} instances, allowing to make one of them visible for interaction. Yet the timeline itself is represented by the {{{TimelineControler}}}, which lives //within this widget,// and is attached to and managed by the InteractionDirector, who incorporates the role of representing the [[model root|ModelRootMO]]. To bridge this conflict of control, we introduce a {{{TimelineGui}}} proxy for each timeline. Which allows to close a timeline on widget level, thereby marking it as detached from model updates; and it enables child manipulation by the {{{InteractionDirector}}}, automatically forwarding to the respective {{{TimelineController}}} if applicable. Aside of the timeline display, there is also an ''asset pannel''; display of and interaction with those asset views is handled by dedicated widgets, backed by the {{{AssetControler}}} -- which is also a child of and managed by the InteractionDirector, since assets are modelled as global part of the [[Session]].
 
 In case the UI starts with no session present in the core, an //empty timeline placeholder// will be displayed, which provides UI for creating a new session...
 
+!!!Placements
+As indicated in the drawing above, pretty much every UI element exposes a button to //edit its placement.// &amp;rarr; GuiPlacementDisplay
+
 
 !!!slave Timelines
 It is reasonable to expect the ability to have multiple [[slave timeline presentations|GuiTimelineSlave]] to access the same underlying timeline structure.
@@ -3498,16 +3510,16 @@ In the most general case, there can be per-track content and nested content at t
 &amp;rarr; important question: how to [[organise the widgets|GuiTimelineWidgetStructure]]
 </pre>
 </div>
-<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810262342" tags="GuiPattern discuss decision impl" changecount="93">
+<div title="GuiTimelineWidgetStructure" creator="Ichthyostega" modifier="Ichthyostega" created="201410250002" modified="201810281438" tags="GuiPattern discuss decision impl" changecount="105">
 <pre>The Timeline is probably the most prominent place in the GUI where we need to come up with a custom UI design.
-Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also means to write one or several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 Gui, as implemented currently, did already take some steps along this route, yet this kind of decision should be cast and documented explicitly (be it after the fact).
+Instead of combining standard components in one of the well-known ways, here we need to come up with our own handling solution -- which also involves to build several custom GTK widgets. Thus the question of layout and screen space division and organisation becomes a crucial design decision. The ~GTK-2 UI, as implemented during the initial years of the Lumiera project, did already take some steps along this route, which was was valuable as foundation for assessment and further planning.
 
-Right away, this topic touches a tricky design and architectural challenge: the → question [[how to organise custom widgets|GuiCustomWidget]].
+As it stands, this topic touches a tricky design and architectural challenge: the → question [[how to organise custom widgets|GuiCustomWidget]].
 
 In a nutshell, ~GTKmm offers several degrees of customisation, namely to build a custom widget class, to build a custom container widget, and to use the [[Gtk::Layout &quot;canvas widget&quot;|GtkLayoutWidget]], possibly combined with //custom drawing.// In addition to assembling a timeline widget class by combining several nested panes, the timeline display needs to rely on the latter approach to allow for the necessary flexible arrangement of [[clip widgets|GuiClipWidget]] within the [[track fork|Fork]].
 
 !the header pane problem
-From general considerations we draw the conclusion to have a track header pane area always visible to the left. For one this means that our top level widget organisation in the timeline will be a horizontal split. And then this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, presumably the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part -- the actual track contents -- impose very specific layout constraints not served by any of the pre-existing layout containers, which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
+Based on principles of //conventional UI design,// we derive the necessity to have a track header pane area, always visible to the left, and scrolling vertically in sync with the actual track display to the right of the timeline area. This insight brings about several consequences. For one this means that our top level widget organisation in the timeline will be a horizontal split. And furthermore this means that we get two distinct sub widgets, whose vertical layout needs to be kept in sync. And even more so, presumably the most adequate implementation technique is different in both parts: the header pane looks like a classical fit for the paradigm of nested boxes and grid layout within those boxes, while the right part -- the actual track contents -- impose very specific layout constraints, not served by any of the pre-existing layout containers -- which means we have to resort to custom drawing on a canvas widget. Following this line of thought, we need an overarching layout manager to coordinate these two disjoint technologies. Any viable alternatives?
 
 !!!considering a table grid layout
 The layout mechanics we try to establish here by explicit implementation would be more or less a given, if instead we'd build the whole timeline display from one base widget, which needs to be a table layout, i.e. {{{Gtk::Grid}}}. We'd use two columns, one for the header pane area, one for the timeline display, and we'd use N+1 rows, with the head row holding the time ruler and the additional rows holding individual tracks. But to get the specific UI mechanics desirable for a timeline display, we had to introduce some twists:
@@ -3522,13 +3534,13 @@ On the other hand, what would be the //obvious benefits...?//
 While the special setup for scrolling doesn't really count (since it is necessary anyway), after this initial investigation it seems clear that a global grid layout doesn't yield enough benefit to justify all the quirks and limitations its use would impose.
 
 !!!follow-up to the obvious choices
-We came to this point of re-considering the overall organisation of widgets, after having to re-write the initial version of our timeline widget. This initial version was developed by Joel Holdsworth, and it followed a similar reasoning, involving a global timeline layout manager. The distinction between the two panes was not so clear though, and the access to the model code was awkward at places, so the necessity to re-write the timeline widget due to the transition to ~GTK-3 looks like a good opportunity to re-do the same basic reasoning a second time, verify decisions taken and improve matters turning out as difficult on first attempt.
+We came to this point of re-considering the overall organisation of widgets, after having to re-write the initial version of our timeline widget. This initial version was developed until 2011 by Joel Holdsworth, and it followed a similar reasoning, involving a global timeline layout manager. The distinction between the two panes was not so clear though, and the access to the model code was awkward at places, so the necessity to re-write the timeline widget due to the transition to ~GTK-3 looks like a good opportunity to re-do the same basic reasoning a second time, verify decisions taken and improve matters turning out as difficult on first attempt.
 
-So we get a timeline custom widget, which at top level establishes this two-part layout, provides the global scrollbars and integrates custom widget components for both parts. And this top-level timeline widget owns a layout manager, plus it exposes a common view management interface, to be used both from internal components (e.g. zoom widgets within the UI) and from external actors controlling the timeline display from a global level. Also at this global level, we get to define a layout control interface, the TimelineDisplayManager, which has to be implemented within the recursively structured parts of the timeline display, and which is used by the global layout manager to exert control over the layout as a whole. {{red{Note (11/2016)}}}: if this layout control interface works push or pull style is a decision yet to be worked out during the course of the implementation.
+So we get a timeline custom widget, which at top level establishes this two-part layout, provides the global scrollbars and integrates custom widget components for both parts. And this top-level timeline widget owns a layout manager, plus it exposes a common view management interface, to be used both from internal components (e.g. zoom widgets within the UI) and from external actors controlling the timeline display from a global level. Also at this global level, we get to define a layout control interface, the TimelineDisplayManager, which has to be implemented within the recursively structured parts of the timeline display, and which is used by the top-level structure to exert control over the layout as a whole. {{red{Note (11/2016)}}}: if this layout control interface works push or pull style is a decision yet to be worked out during the course of the implementation.
 
 
 !dealing with nested structures
-The handling of objects structured into nested scopes is a hallmark of the very specific approach taken by Lumiera when it comes to attaching, arranging and relating media objects. But here in the UI display of the timeline, this approach creates a special architectural challenge: the only sane way to deal with nested structures without exploding complexity is to find some way to exploit the ''recursive self similarity'' inherent in any tree structure. But the problematic consequence of this assessment is the tension, even contradiction it creates to the necessities of GUI programming, which forces us to come up with one single, definitive widget representation of what is going on eventually. The conclusion is that we need to come up with an interface such as to allow building and remoulding of the UI display through incremental steps -- where each of this incremental steps relies solely on relative, context based information. Because this is the only way we can deal with building a tree structure by recursive programming. We must not demand the individual step to know its arrangement within the tree, other than indicating a &quot;current&quot; or a &quot;parent&quot; reference point.
+The handling of objects structured into nested scopes is a hallmark of the very specific approach taken by Lumiera when it comes to attaching, arranging and relating media objects. But here in the UI display of the timeline, this approach creates a special architectural challenge: the only sane way to deal with nested structures without exploding complexity is to find some way to exploit the ''recursive self similarity'' inherent in any tree structure. But the problematic consequence of this assessment is the tension, even contradiction it creates to the necessities of GUI programming, which forces us to come up with one single, definitive widget representation of what is going on eventually. The conclusion is that we need to come up with an interface such as to allow building and remoulding of the UI display through incremental steps -- where each of this incremental steps relies solely on relative, context based information. Because this is the only way we can deal with building a tree structure by recursive programming. We must not allow the individual step to know its arrangement within the tree, other than indicating a &quot;current&quot; or a &quot;parent&quot; reference point.
 
 The structure of the display is extended or altered under two circumstances:
 # some component receives a [[diff mutation message|MutationMessage]], prompting to add or remove a //child component.//
@@ -3538,12 +3550,12 @@ Here, the &quot;component&quot; relevant for such structural changes is always t
 From these observations we can draw the conclusion, that we'll build a ''local structural model'', to reflect the logical relations between the parts comprising the timeline display. More precisely, these structuring components are not mere model objects, rather they are mediating entities used to guide and organise the actual view entities, which in turn are passive. They are more like a view model, while also bearing some local controller responsibilities. For this reason, we prefer to term these as ''presenters'' -- i.e. TrackPresenter and ClipPresenter. And each of these local representation components holds onto a ''display context'', which generally links it //into two different display widget stacks// within the two parts of the actual timeline display. Adding a child component thus becomes a rather tricky operation, involving to link possibly two child widgets into two disjoint parent widgets, thereby forming a similar display context for the child presenter. Overall, the guiding idea is that of self similarity: on each level, we have to reproduce the same relations and collaborations as present in the parent level.
 
 !!!building the timeline representation structure
-It is a fundamental decision within the Lumiera UI that any structure as to be injected as diff by the core. We do not hold a structure or data model within some UI entity and then &quot;interpret&quot; that model into a widget structure -- rather we build the widget structure itself in response to a diff message describing the structure. Especially in the case of timelines, the receiver of those messages is the InteractionDirector, which corresponds to the model root. On being prompted to set up a timeline, it will allocate a {{{TimelineWidget}}} within a suitable timeline docking panel and then attach to the {{{TimelineController}}} embedded within the widget.
+It is a fundamental decision within the Lumiera UI that any structure has to be injected as diff by the core. We do not hold a structure or data model within some UI entity and then &quot;interpret&quot; that model into a widget structure -- rather we build the widget structure itself in response to a diff message describing the structure. Especially in the case of timelines, the receiver of those messages is the InteractionDirector, which corresponds to the model root. On being prompted to set up a timeline, it will allocate a {{{TimelineWidget}}} within a suitable timeline docking panel and then attach to the {{{TimelineController}}} embedded within the widget.
 
 {{red{Problem 10/2018}}} how can the InteractionDirector //manage// a timeline while the timeline widget physically resides within the panel? Can we exploit a simliar structure as we did for the error log?
- * in part yes -- however we introduce an mediating entity, the {{{TimelineGui}}} proxy
- * it uses a {{{WLink}}} to refer to the actual {{{TimelineWidget}}} -- meaning the widget need not exist, and will detach automatically when destroyed by its holder, which is the {{{TimelinePanel}}}
- * {{red{TODO 11/2018}}} still need to care for removing a {{{TimelineWidget}}} when the logically managing parent, i.e. the InteractionDirector deletes the {{{TimelineGui}}} proxy
+* in part yes -- however we introduce a mediating entity, the {{{TimelineGui}}} proxy
+* it uses a {{{WLink}}} to refer to the actual {{{TimelineWidget}}} -- meaning the widget need not exist, and will detach automatically when destroyed by its holder, which is the {{{TimelinePanel}}}
+* {{red{TODO 11/2018}}} still need to care for removing a {{{TimelineWidget}}} when the logically managing parent, i.e. the InteractionDirector deletes the {{{TimelineGui}}} proxy
 
 The diff describing and thus assembling the UI representation of a timeline is typically a ''population diff'' -- which means, it is a consolidated complete description of the whole sub-structure rooted below that timeline. Such a population diff is generated as emanation from the respective DiffConstituent.
 
@@ -3553,7 +3565,7 @@ Applying a diff changes the structure, that is, the structure of the local model
 * when a model element happens to be destructed, the corresponding display element has to be removed.
 * such might be triggered indirectly, by clean-up of leftovers, since the {{{DiffApplicator}}} re-orders and deletes by leaving some data behind
 * the diff also re-orders model elements, which does not have an immediate effect on the display, but needs to be interpreted separately.
-Wrapping this together we get a fix up stage after model changes, where the display is re-adjusted to fit the new situation. This works in concert with the [[display manager|TimelineDisplayManager]] representing only those elements as actual widgets, which get a real chance to become visible. This way we can build on the assumption that the actual number of widgets to be managed any time remains so small as to get away with simple linear list processing. It remains to be seen how far this assumption can be pushed -- the problem is that the GTK container components don't support anything beyond such simple linear list processing; there isn't even a call to remove all child widgets of a container in a single pass.
+Wrapping this together we get a //fix up stage// after any model changes, where the display is re-adjusted to fit the new situation. This works in concert with the [[display manager|TimelineDisplayManager]] representing only those elements as actual widgets, which get a real chance to become visible. This way we can build on the assumption that the actual number of widgets to be managed any time remains so small as to get away with simple linear list processing. It remains to be seen how far this assumption can be pushed -- the problem is that the GTK container components don't support anything beyond such simple linear list processing; there isn't even a call to remove all child widgets of a container in a single pass.
 </pre>
 </div>
 <div title="GuiTopLevel" creator="Ichthyostega" modifier="Ichthyostega" created="201701261944" modified="201708311555" tags="GuiPattern spec draft" changecount="12">
@@ -9016,13 +9028,13 @@ Besides building on the asset management, implementing Timeline (and Sequence) a
 This topic is {{red{postponed as of 10/2018}}} &amp;rarr; [[#1083|http://issues.lumiera.org/ticket/1083]]
 </pre>
 </div>
-<div title="TimelineDisplayManager" creator="Ichthyostega" modifier="Ichthyostega" created="201611280235" modified="201612011740" tags="spec GuiPattern img" changecount="4">
+<div title="TimelineDisplayManager" creator="Ichthyostega" modifier="Ichthyostega" created="201611280235" modified="201810281443" tags="spec GuiPattern img" changecount="5">
 <pre>//guide and control the concrete display properties of the various sub components (tracks, clips) comprising a timeline display.//
 
 The TimelineDisplayManager actually is an abstraction, a control interface, revolving around the guidance individual components need in order to settle on a proper display. Those components are represented as mediating entities, the TrackPresenter and the ClipPresenter, each of which controls and manages a mostly passive GTK widget. To this end, the presenters need to know at which virtual coordinates their corresponding widgets would show up, and they need to know if these widgets need to be actually present at the moment. Also, especially the ClipPresenter needs to know which ''clip appearance style'' to choose for the corresponding slave widget.
 
 !display evaluation pass
-[&gt;img[Clip presentation control|uml/Timeline-display-evaluation.png]]Since the timeline display is formed by several nested collections of elements, a proper display layout must incorporate information from all those parts. A naive approach likely would just iterate over them and reach in to extract data -- or even worse, build a separate display data store, which then needs to be kept in sync with the component hierarchy. Any of this would lead to high coupling and turns any necessary adjustment and changes due to evolution of requirements into a liability. Such a dangerous situation can be avoided altogether by admitting the collaborative nature of the task at hand. To get there, we need to distil the abstraction shared between the global and the local concerns, and we need to shape it such as to build onto some kind of invariant, allowing that abstraction to re-emerge at several levels of locality.
+[&gt;img[Clip presentation control|uml/Timeline-display-evaluation.png]]Since the timeline display is formed by several nested collections of elements, a proper display layout must incorporate information from all those parts. A naive approach likely would just iterate over them and reach in to extract data -- or even worse, build a separate display data store, which then needs to be kept in sync with the component hierarchy. Any of these naive working styles would lead to high coupling and it turns the necessary adjustment and changes into a liability, which raises due to evolution of requirements. Over time, such a dangerous situation can only be avoided altogether by admitting the collaborative nature of the task at hand. To get there, we need to distil the abstraction shared between the global and the local concerns, and we need to shape it such as to build onto some kind of invariant, allowing that abstraction to re-emerge at several levels of locality.
 </pre>
 </div>
 <div title="TimelineSequences" modifier="Ichthyostega" created="200811011836" modified="201505310138" tags="design decision img" changecount="4">
@@ -9126,10 +9138,10 @@ Placements are __resolved__ resulting in an ExplicitPlacement. In most cases thi
 &amp;rarr; [[Definition|Pipe]] and [[handling of Pipes|PipeHandling]]
 </pre>
 </div>
-<div title="TrackPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611280207" modified="201810262349" tags="def GuiPattern" changecount="6">
+<div title="TrackPresenter" creator="Ichthyostega" modifier="Ichthyostega" created="201611280207" modified="201810281454" tags="def GuiPattern" changecount="11">
 <pre>//mediating entity used to guide and control the track-like nested working space in the timeline display of the UI.//
 
-Similar to the ClipPresenter, from a global angle this element fulfils a model like role, while also guiding and controlling a mostly passive view component implemented as GTK widget. Here, the authority of the presenter over the widget must be total, since display management //needs to work automatically,// due to model updates and mutations arriving as [[diff messages|MutationMessage]]. In addition, this structure is prerequisite for (possibly) implementing UI rendering optimisations, since it allows us to leave out widgets entirely, when it is clear they won't become visible: A ''display evaluation pass'', which is effectively a //tree walk,// consecutively visits each part of the timeline structure, to negotiate its concrete display properties in collaboration with a global TimelineDisplayManager. As a result, the presenter knows where to show its corresponding view, and it knows if to show it at all, allowing to either adjust, create or destroy actual GTK widgets within its local reference frame.
+Similar to the ClipPresenter, judged from a global angle, this element fulfils a model-like role, while at the same time guiding and controlling a mostly passive view component, implemented as GTK widget. Here, the authority of the presenter over the widget must be total, since display management //needs to work automatically,// due to model updates and mutations arriving as [[diff messages|MutationMessage]]. In addition, this structure is prerequisite for (possibly) implementing UI rendering optimisations, since it allows us to leave out widgets entirely, when it is clear they won't become visible: A ''display evaluation pass'', which is effectively a //tree walk,// consecutively visits each part of the timeline structure, to negotiate its concrete display properties in collaboration with a global TimelineDisplayManager. As a result, the presenter knows where to show its corresponding view, and it knows if to show it at all, allowing to either adjust, create or destroy actual GTK widgets within its local reference frame.
 
 A special twist arises from the fact that track display has to happen aligned and in sync within the two display panes of the timeline at the same time. This means that each TrackPresenter has to hold and manage //two slave display elements,// each of which is inserted within a disjoint hierarchy of display elements. For one, there is the {{{timeline::TrackHeadWidget}}} which in turn renders a {{{PatchbayWidget}}}, and on the other side there is a {{{TrackBody}}} element, which is not strictly a widget of itself, but inserted into our custom drawing {{{timeline::BodyCanvasWidget}}} to manage the custom drawing of the respective track working area.
 
@@ -9137,7 +9149,7 @@ To deal with this typical problem of recursive programming, we introduce a bindi
 * the TrackPresenter holds a {{{DisplayFrame}}} member, which in turn houses the two head and body widgets. So basically the widgets are allocated within the presenter.
 * however, after constructing the {{{DisplayFrame}}}, it invokes an anchor functor, which is passed in from the recursive outer scope, and which does the actual work of installing those widgets into the apropriate parent widgets
 * but the {{{DisplayFrame}}} itself also exposes such an anchor functor, which can be passed down when (recursively) creating a TrackPresenter for a sub-Track
-* obviously, at top-level, we need to digress from that general pattern -- here it is the {{{timeline::LayoutManager}}} responsible for the display structure of the whole timeline which exposes the necessary anchor function to attach the root track for a timeline.
+* obviously, at top-level, we need to digress from that general pattern -- here it is the {{{timeline::TimelineLayout}}} responsible for the display structure of the whole timeline which exposes the necessary anchor function to attach the root track for a timeline.
 </pre>
 </div>
 <div title="TransitionsHandling" modifier="Ichthyostega" created="200712080417" modified="200805300100" tags="def design">
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 6d9e8cfae..d6ed8a34f 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -18338,7 +18338,7 @@
 <node CREATED="1480807594822" ID="ID_333819085" MODIFIED="1518487921081" TEXT="f&#xfc;hre mal einen Marker-Typ ein"/>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1538957611472" ID="ID_1996849782" MODIFIED="1538957931290" TEXT="erwartet gem&#xe4;&#xdf; UI Modell-Schema">
+<node COLOR="#435e98" CREATED="1538957611472" ID="ID_1996849782" MODIFIED="1540748032493" TEXT="erwartet gem&#xe4;&#xdf; UI Modell-Schema">
 <arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" STARTARROW="None" STARTINCLINATION="823;93;"/>
 <icon BUILTIN="info"/>
 <node COLOR="#435e98" CREATED="1540639547294" ID="ID_133813709" MODIFIED="1540639561155" TEXT="TimelineID"/>
@@ -19065,8 +19065,9 @@
 </node>
 <node CREATED="1540641305092" HGAP="50" ID="ID_18552766" MODIFIED="1540684353686" TEXT="PatchbayWidget" VSHIFT="-2">
 <arrowlink DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="68;9;" ID="Arrow_ID_1923805019" STARTARROW="None" STARTINCLINATION="110;25;"/>
-<node CREATED="1540682893097" HGAP="65" ID="ID_419298158" MODIFIED="1540684338784" TEXT="interne Struktur?" VSHIFT="11">
-<icon BUILTIN="help"/>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1540682893097" HGAP="65" ID="ID_419298158" MODIFIED="1540747497085" TEXT="interne Struktur" VSHIFT="11">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
 <node CREATED="1540682901320" ID="ID_1054686680" MODIFIED="1540684245713" TEXT="stacked boxes?">
 <icon BUILTIN="button_cancel"/>
 </node>
@@ -19087,6 +19088,27 @@
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540747470806" HGAP="97" ID="ID_831752558" MODIFIED="1540747508242" TEXT="Frage: wieviel Indirektion?" VSHIFT="5">
+<icon BUILTIN="help"/>
+<node CREATED="1540747516509" ID="ID_1965076800" MODIFIED="1540747526726" TEXT="ist TimelineHeaderWidget &#xfc;berfl&#xfc;ssig?"/>
+<node CREATED="1540747533463" ID="ID_1845120165" MODIFIED="1540747546555" TEXT="dann w&#xe4;re TimelineHeader == PatchbayWidget"/>
+<node CREATED="1540747550734" ID="ID_843399235" MODIFIED="1540748388723" TEXT="macht Sinn...">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn das Patchbay-Widget mu&#223; diverse Interna des Tracks beachten,
+    </p>
+    <p>
+      so z.B. sein Placement, welches <i>teilweise als Properties</i>&#160;des Track abgebildet wird.
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -20806,7 +20828,7 @@
 </html></richcontent>
 </node>
 </node>
-<node CREATED="1538956606744" ID="ID_165150753" MODIFIED="1538957931290" TEXT="erwartete Modell-Struktur">
+<node CREATED="1538956606744" ID="ID_165150753" MODIFIED="1540748009672" TEXT="erwartete Modell-Struktur">
 <linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" SOURCE="ID_1996849782" STARTARROW="None" STARTINCLINATION="823;93;"/>
 <linktarget COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" SOURCE="ID_580392349" STARTARROW="None" STARTINCLINATION="1108;116;"/>
 <node CREATED="1538956633404" ID="ID_266268175" MODIFIED="1538956634704" TEXT="Root">
@@ -20844,6 +20866,9 @@
 <node CREATED="1538956945754" ID="ID_30162898" MODIFIED="1538956953906" TEXT="&quot;name&quot;"/>
 <node CREATED="1538956945754" ID="ID_39934842" MODIFIED="1538957154865" TEXT="&quot;kind&quot; = LOOP|MARK"/>
 </node>
+<node CREATED="1538956606744" ID="ID_388585037" MODIFIED="1540748246007" TEXT="Placement">
+<linktarget COLOR="#919fc6" DESTINATION="ID_388585037" ENDARROW="None" ENDINCLINATION="-682;462;" ID="Arrow_ID_726807054" SOURCE="ID_1483911882" STARTARROW="Default" STARTINCLINATION="638;-81;"/>
+</node>
 </node>
 </node>
 <node CREATED="1523019349923" ID="ID_353542665" MODIFIED="1523019373947" TEXT="UI-Koordinaten (UICoord)">
@@ -30620,10 +30645,19 @@
 <node CREATED="1448063874479" HGAP="43" ID="ID_739054690" MODIFIED="1538957545166" TEXT="UI-Binding" VSHIFT="1">
 <icon BUILTIN="yes"/>
 <node CREATED="1538957594154" ID="ID_2785316" MODIFIED="1538957602189" TEXT="erwartete Modell-Struktur">
-<node COLOR="#435e98" CREATED="1538957611472" ID="ID_580392349" MODIFIED="1538957734503" TEXT="gem&#xe4;&#xdf; UI Modell-Schema">
+<node COLOR="#435e98" CREATED="1538957611472" ID="ID_580392349" MODIFIED="1540748016895" TEXT="gem&#xe4;&#xdf; UI Modell-Schema">
 <arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-641;482;" ID="Arrow_ID_593956858" STARTARROW="None" STARTINCLINATION="1108;116;"/>
 <icon BUILTIN="info"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538957611472" ID="ID_1483911882" MODIFIED="1540748246007" TEXT="Aufgabe: Placement GUI-Repr&#xe4;sentation">
+<arrowlink COLOR="#919fc6" DESTINATION="ID_388585037" ENDARROW="None" ENDINCLINATION="-682;462;" ID="Arrow_ID_726807054" STARTARROW="Default" STARTINCLINATION="638;-81;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1540748268638" ID="ID_59379201" MODIFIED="1540748330629" TEXT="Grundkonzept">
+<icon BUILTIN="yes"/>
+<node CREATED="1540748279917" ID="ID_85147625" MODIFIED="1540748291791" TEXT="materialisierte Eigenschaften erscheinen auf dem Target"/>
+<node CREATED="1540748293067" ID="ID_1744964690" MODIFIED="1540748324524" TEXT="(meta)-Einstellungen des Placements erscheinen in einem geschachtelten Objekt"/>
+</node>
+</node>
 </node>
 </node>
 <node CREATED="1434128074725" FOLDED="true" HGAP="28" ID="ID_933994138" MODIFIED="1538870799628" TEXT="Diff-System" VSHIFT="1">

From 0aa4a8cb424f3c25d96dc482c7152b3e97054d87 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 30 Oct 2018 03:37:55 +0100
Subject: [PATCH 166/178] Timeline: make the Patchbay a Viewport container, to
 follow body scrolling

Gtk::Viewport allows to add the ability to scroll a partial view window
for a container larger than the available display area. The position
and movement of this window is controlled by Gtk::Adjustments,
which can be located elsewhere.

Here we use the existing Adjustments of the ScrolledWindow
holding the body canvas; this setup makes the header pane follow
the scroll movements of the body
---
 src/gui/timeline/header-pane-widget.hpp |  7 ++++--
 src/gui/timeline/patchbay-widget.cpp    | 33 ++++++++++++++-----------
 src/gui/timeline/patchbay-widget.hpp    | 30 +++++++++-------------
 src/gui/timeline/timeline-layout.cpp    |  2 +-
 src/gui/timeline/timeline-layout.hpp    |  2 +-
 src/gui/timeline/track-head-widget.cpp  | 22 ++++++++++++++---
 src/gui/timeline/track-head-widget.hpp  | 28 ++++++++++++++++++---
 wiki/thinkPad.ichthyo.mm                | 32 ++++++++++++++++++++++--
 8 files changed, 110 insertions(+), 46 deletions(-)

diff --git a/src/gui/timeline/header-pane-widget.hpp b/src/gui/timeline/header-pane-widget.hpp
index 3b5b6add0..e18cbc2fa 100644
--- a/src/gui/timeline/header-pane-widget.hpp
+++ b/src/gui/timeline/header-pane-widget.hpp
@@ -63,6 +63,9 @@
 namespace gui  {
 namespace timeline {
   
+  using PAdjustment = Glib::RefPtr<Gtk::Adjustment>;
+  
+  
   class TrackHeadWidget;
   
   
@@ -78,10 +81,10 @@ namespace timeline {
     public:
      ~HeaderPaneWidget() { }
       
-      HeaderPaneWidget()
+      HeaderPaneWidget (PAdjustment const& vScroll)
         : Gtk::Box{Gtk::ORIENTATION_VERTICAL}
         , navigator_{}
-        , patchbay_{}
+        , patchbay_{vScroll}
         {
           this->pack_start (navigator_, Gtk::PACK_SHRINK);
           this->pack_start (patchbay_, Gtk::PACK_EXPAND_WIDGET);
diff --git a/src/gui/timeline/patchbay-widget.cpp b/src/gui/timeline/patchbay-widget.cpp
index 01cfa6617..e40d049d8 100644
--- a/src/gui/timeline/patchbay-widget.cpp
+++ b/src/gui/timeline/patchbay-widget.cpp
@@ -32,7 +32,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/timeline/patchbay-widget.hpp"
-
+#include "gui/timeline/track-head-widget.hpp"
 //#include "gui/ui-bus.hpp"
 //#include "lib/format-string.hpp"
 //#include "lib/format-cout.hpp"
@@ -46,6 +46,7 @@
 
 //using util::_Fmt;
 //using util::contains;
+using Gtk::Adjustment;
 //using Gtk::Widget;
 //using sigc::mem_fun;
 //using sigc::ptr_fun;
@@ -63,25 +64,29 @@ namespace timeline {
   PatchbayWidget::~PatchbayWidget() { }
   
   
-  PatchbayWidget::PatchbayWidget ()
-    : Gtk::Grid{}
+  /**
+   * Set up the patchbay area of the timeline UI.
+   * The patchbay is a container to hold the actual placement control widgets
+   * arranged alongside with each track, according to the nested track structure.
+   * The header pane and thus especially the patchbay needs to follow as a slave
+   * to the vertical scrolling adjustments of the Timeline display; if the users
+   * scrolls up or down over the more or less expanded tree of tracks, the header
+   * has to follow this scrolled display in sync. Thus the implementation of the
+   * patchbay is based on a Gtk::Viewport, which is attached to the vertical
+   * Gtk::Adjustment, as exposed by the Gtk::ScrolledWindow holding the
+   * timeline body canvas on the right side of the Timeline UI.
+   * @note the Patchbay is not scrollable in horizontal direction,
+   *       thus we create a disabled Adjustment for this parameter.
+   */
+  PatchbayWidget::PatchbayWidget (PAdjustment const& vScroll)
+    : Gtk::Viewport{Gtk::Adjustment::create (0,0,0,0,0,0), vScroll}
     { }
   
   
-  /**
-   * The Lumiera Timeline model does not rely on a list of tracks, as most conventional
-   * video editing software does -- rather, each sequence holds a _fork of nested scopes._
-   * This recursively nested structure is reflected in the patchbay area corresponding to
-   * each track in the _header pane_ of the timeline display, located to the left. The
-   * patchbay for each track is a grid with four quadrants, and the 4th quadrant is the
-   * _content area,_ which is recursively extended to hold nested PatchbayWidget elements,
-   * corresponding to the child tracks of this track. To _fund_ this recursively extensible
-   * structure, we need to set up the first four quadrants
-   */
   void
   PatchbayWidget::installFork (TrackHeadWidget& rootTrackHead)
   {
-    UNIMPLEMENTED ("how actually to represent the track in the patchbay");
+    this->add (rootTrackHead);
   }
   
   
diff --git a/src/gui/timeline/patchbay-widget.hpp b/src/gui/timeline/patchbay-widget.hpp
index 42c33b4f1..03728a763 100644
--- a/src/gui/timeline/patchbay-widget.hpp
+++ b/src/gui/timeline/patchbay-widget.hpp
@@ -22,22 +22,14 @@
 
 
 /** @file patchbay-widget.hpp
- ** Widget to control the placement parameters of a fork within the timeline header pane UI.
+ ** Widget to hold the track head controls within the timeline header pane UI.
  ** [The fork](\ref session::Fork), a recursively nested system of scopes, is rendered within
- ** the timeline display as a system of nested tracks. Each of these tracks possibly holds some
- ** child tracks plus some actual media clips, which all inherit parameters of placement from
- ** this fork ("track"). These parameters address various aspects of how content is attached
- ** ("placed") into the model at large, examples being
- ** - how to route the output
- ** - how to "place" this content into an _output space_, like e.g.
- **   + sound panning
- **   + video overlay parameters (additive, opaque, transparent)
- **   + video or audio _level_ (=fader)
- ** - how to locate this content in time (e.g. relative to some marker)
- ** For each track, we show a patchbay in the timeline header pane, which serves to control
- ** such aspects relevant for all content contained within the scope of this track. 
+ ** the timeline display as a system of nested tracks. For each of these tracks we get a header
+ ** section, allowing to control its placement parameters, including start time, output routing
+ ** level and panning. The _Patch Bay_ is the container holding all those track header controls,
+ ** arranged into a recursively nested structure.
  ** 
- ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo WIP-WIP-WIP as of 10/2018
  ** 
  */
 
@@ -56,7 +48,9 @@
 
 namespace gui  {
 namespace timeline {
-    
+  
+  using PAdjustment = Glib::RefPtr<Gtk::Adjustment>;
+  
   class TrackHeadWidget;
 
   
@@ -68,13 +62,13 @@ namespace timeline {
    * @todo WIP-WIP as of 12/2016
    */
   class PatchbayWidget
-    : public Gtk::Grid
+    : public Gtk::Viewport
     {
     public:
-      PatchbayWidget();
+      PatchbayWidget (PAdjustment const& vScroll);
      ~PatchbayWidget();
       
-      /** @internal Initially install the contents corresponding to this track fork */
+      /** @internal Initially install the contents corresponding to the track fork root */
       void installFork (TrackHeadWidget& rootTrackHead);
       
     private:/* ===== Internals ===== */
diff --git a/src/gui/timeline/timeline-layout.cpp b/src/gui/timeline/timeline-layout.cpp
index a4fbface5..3028bce8f 100644
--- a/src/gui/timeline/timeline-layout.cpp
+++ b/src/gui/timeline/timeline-layout.cpp
@@ -63,8 +63,8 @@ namespace timeline {
   
   TimelineLayout::TimelineLayout (Gtk::Paned& topLevelContainer)
     : paneSplitPosition_{topLevelContainer.property_position()}
-    , headerPane_{}
     , bodyCanvas_{}
+    , headerPane_{bodyCanvas_.get_vadjustment()}   // wire the header pane (Gtk::Viewport) to follow the body vertical scroll movement
     {
       topLevelContainer.add1 (headerPane_);
       topLevelContainer.add2 (bodyCanvas_);
diff --git a/src/gui/timeline/timeline-layout.hpp b/src/gui/timeline/timeline-layout.hpp
index 2f513eb3c..6a14b359d 100644
--- a/src/gui/timeline/timeline-layout.hpp
+++ b/src/gui/timeline/timeline-layout.hpp
@@ -110,8 +110,8 @@ namespace timeline {
     {
       Glib::PropertyProxy<int> paneSplitPosition_;
       
-      HeaderPaneWidget headerPane_;
       BodyCanvasWidget bodyCanvas_;
+      HeaderPaneWidget headerPane_;
       
       
     public:
diff --git a/src/gui/timeline/track-head-widget.cpp b/src/gui/timeline/track-head-widget.cpp
index 3bb54282a..518ac9dc4 100644
--- a/src/gui/timeline/track-head-widget.cpp
+++ b/src/gui/timeline/track-head-widget.cpp
@@ -22,8 +22,7 @@
 
 
 /** @file track-head-widget.cpp
- ** Implementation details regarding display of the track heads
- ** within the timeline UI.
+ ** Implementation details regarding display of the track heads within the timeline UI.
  ** 
  ** @todo WIP-WIP-WIP as of 12/2016
  ** 
@@ -59,17 +58,32 @@ namespace timeline {
   
   
   
+  TrackHeadWidget::~TrackHeadWidget() { }
+  
+  
   
   TrackHeadWidget::TrackHeadWidget ()
+    : Gtk::Grid{}
     {
     }
   
   
-  TrackHeadWidget::~TrackHeadWidget()
+  /**
+   * @remark The Lumiera Timeline model does not rely on a list of tracks, as most conventional
+   * video editing software does -- rather, each sequence holds a _fork of nested scopes._
+   * This recursively nested structure is reflected in the patchbay area corresponding to
+   * each track in the _header pane_ of the timeline display, located to the left. The
+   * patchbay for each track is a grid with four quadrants, and the 4th quadrant is the
+   * _content area,_ which is recursively extended to hold nested PatchbayWidget elements,
+   * corresponding to the child tracks of this track. To _fund_ this recursively extensible
+   * structure, we need to set up the first four quadrants
+   */
+  void
+  TrackHeadWidget::injectSubFork (TrackHeadWidget& subForkHead)
   {
+    UNIMPLEMENTED ("how actually to represent the track in the patchbay");
   }
   
   
   
-  
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/track-head-widget.hpp b/src/gui/timeline/track-head-widget.hpp
index 3de1be01e..cb448bf51 100644
--- a/src/gui/timeline/track-head-widget.hpp
+++ b/src/gui/timeline/track-head-widget.hpp
@@ -22,10 +22,22 @@
 
 
 /** @file track-head-widget.hpp
- ** Widget to represent a track head with placement control patchbay
- ** within Lumiera's timeline UI.
+ ** Widget to represent a track head with placement parameters, within the timeline header pane.
+ ** [The fork](\ref session::Fork), a recursively nested system of scopes, is rendered within
+ ** the timeline display as a system of nested tracks. Each of these tracks possibly holds some
+ ** child tracks plus some actual media clips, which all inherit parameters of placement from
+ ** this fork ("track"). These parameters address various aspects of how content is attached
+ ** ("placed") into the model at large, examples being
+ ** - how to route the output
+ ** - how to "place" this content into an _output space_, like e.g.
+ **   + sound panning
+ **   + video overlay parameters (additive, opaque, transparent)
+ **   + video or audio _level_ (=fader)
+ ** - how to locate this content in time (e.g. relative to some marker)
+ ** For each track, we show a patchbay in the timeline header pane, which serves to control
+ ** such aspects relevant for all content contained within the scope of this track.
  ** 
- ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo WIP-WIP-WIP as of 10/2018
  ** 
  */
 
@@ -47,14 +59,22 @@ namespace timeline {
   
   
   /**
+   * Header pane control area corresponding to a Track with nested child Tracks.
+   * This structure is used recursively to build up the Fork of nested Tracks.
+   * - first row: Placement + Property pane
+   * - second row: content or nested tracks.
    * @todo WIP-WIP as of 12/2016
    */
   class TrackHeadWidget
+    : public Gtk::Grid
     {
     public:
       TrackHeadWidget ();
      ~TrackHeadWidget();
-     
+      
+      /** Integrate the control area for a nested sub track fork. */
+      void injectSubFork (TrackHeadWidget& subForkHead);
+
     private:/* ===== Internals ===== */
      
     };
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d6ed8a34f..6f6782833 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19088,9 +19088,12 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1540747470806" HGAP="97" ID="ID_831752558" MODIFIED="1540747508242" TEXT="Frage: wieviel Indirektion?" VSHIFT="5">
+<node COLOR="#435e98" CREATED="1540747470806" HGAP="97" ID="ID_831752558" MODIFIED="1540866703223" TEXT="Frage: Patchbay vs TrackHead?" VSHIFT="5">
 <icon BUILTIN="help"/>
-<node CREATED="1540747516509" ID="ID_1965076800" MODIFIED="1540747526726" TEXT="ist TimelineHeaderWidget &#xfc;berfl&#xfc;ssig?"/>
+<node CREATED="1540747516509" ID="ID_1965076800" MODIFIED="1540862756644" TEXT="ist TrackHeadWidget &#xfc;berfl&#xfc;ssig?">
+<arrowlink COLOR="#6ba7db" DESTINATION="ID_415092517" ENDARROW="Default" ENDINCLINATION="-390;0;" ID="Arrow_ID_1346421423" STARTARROW="None" STARTINCLINATION="445;0;"/>
+<icon BUILTIN="button_cancel"/>
+</node>
 <node CREATED="1540747533463" ID="ID_1845120165" MODIFIED="1540747546555" TEXT="dann w&#xe4;re TimelineHeader == PatchbayWidget"/>
 <node CREATED="1540747550734" ID="ID_843399235" MODIFIED="1540748388723" TEXT="macht Sinn...">
 <richcontent TYPE="NOTE"><html>
@@ -19108,6 +19111,31 @@
 </html>
 </richcontent>
 </node>
+<node CREATED="1540862631576" ID="ID_136673309" MODIFIED="1540862656534" TEXT="aber: Patchbay ist mehr als ein TrackHead">
+<icon BUILTIN="yes"/>
+<node CREATED="1540862657930" ID="ID_505897358" MODIFIED="1540862669986" TEXT="das Scrollen nicht vergessen">
+<icon BUILTIN="messagebox_warning"/>
+</node>
+<node CREATED="1540862671211" ID="ID_1297724441" MODIFIED="1540862683893" TEXT="brauche eine Scroll-Pane ohne Scrolbar">
+<node CREATED="1540862789523" ID="ID_1163137569" MODIFIED="1540862795073" TEXT="geht das?">
+<icon BUILTIN="help"/>
+<node CREATED="1540863135984" ID="ID_1095034635" MODIFIED="1540863144583" TEXT="wohl nicht direkt"/>
+<node CREATED="1540863146507" ID="ID_1788133857" MODIFIED="1540863181887" TEXT="ScrolledWindow verwendet Gtk::Viewport">
+<icon BUILTIN="idea"/>
+</node>
+</node>
+<node CREATED="1540863578545" ID="ID_1986597218" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-adjustments-easy.html.en" MODIFIED="1540863596133" TEXT="Tutorial: separate Scrollbar f&#xfc;r TextView"/>
+<node CREATED="1540863719920" ID="ID_1675657033" MODIFIED="1540863737439" TEXT="analog: das Adjustment von der BodyPane verwenden"/>
+<node CREATED="1540863740331" ID="ID_432547471" MODIFIED="1540863760988" TEXT="und ein (passives) Adjustment f&#xfc;r horizontal"/>
+<node COLOR="#338800" CREATED="1540866723618" ID="ID_943818911" MODIFIED="1540866732106" TEXT="sofort im ctor verdrahten">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node CREATED="1540862691920" ID="ID_415092517" MODIFIED="1540862773212" TEXT="das ist dann sinnvollerweise die Patchbay als Ganzes">
+<linktarget COLOR="#6ba7db" DESTINATION="ID_415092517" ENDARROW="Default" ENDINCLINATION="-390;0;" ID="Arrow_ID_1346421423" SOURCE="ID_1965076800" STARTARROW="None" STARTINCLINATION="445;0;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From 04b665afd1224beb9531b3d50ccfbb9517521ced Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 31 Oct 2018 03:52:24 +0100
Subject: [PATCH 167/178] Timeline: concept for the TrackBody helpers

these recursively nested helper entities work together with the TimelineCanvas
and enable the latter to draw the track background in the Timeline Widget and
to find out about the vertical coordinates where to place content (Clip, Effects, Markers)
---
 src/gui/timeline/body-canvas-widget.cpp | 11 +++++--
 src/gui/timeline/body-canvas-widget.hpp |  3 ++
 src/gui/timeline/track-body.cpp         | 42 ++++++++++++++++++-------
 src/gui/timeline/track-body.hpp         | 24 ++++++++++++--
 src/gui/timeline/track-presenter.hpp    |  5 +++
 wiki/thinkPad.ichthyo.mm                | 22 +++++++++++--
 6 files changed, 89 insertions(+), 18 deletions(-)

diff --git a/src/gui/timeline/body-canvas-widget.cpp b/src/gui/timeline/body-canvas-widget.cpp
index 10e06f7be..284688036 100644
--- a/src/gui/timeline/body-canvas-widget.cpp
+++ b/src/gui/timeline/body-canvas-widget.cpp
@@ -58,6 +58,13 @@ namespace timeline {
   
   
   
+  TimelineCanvas::TimelineCanvas()
+    : Gtk::Layout{}
+    , rootBody_{nullptr}
+    { }
+  
+  
+  
   BodyCanvasWidget::~BodyCanvasWidget() { }
   
   
@@ -87,9 +94,9 @@ namespace timeline {
    * of a Timeline, will also prepare the grounding for any other nested entities to be drawn on top.
    */
   void
-  BodyCanvasWidget::installForkRoot (TrackBody& rootTrackHead)
+  BodyCanvasWidget::installForkRoot (TrackBody& rootTrackBody)
   {
-    UNIMPLEMENTED ("how actually to represent the track bode on the canvas");
+    canvas_.rootBody_ = &rootTrackBody;
   }
 
   
diff --git a/src/gui/timeline/body-canvas-widget.hpp b/src/gui/timeline/body-canvas-widget.hpp
index 47d68e5e2..47b1743e6 100644
--- a/src/gui/timeline/body-canvas-widget.hpp
+++ b/src/gui/timeline/body-canvas-widget.hpp
@@ -75,7 +75,10 @@ namespace timeline {
   class TimelineCanvas
     : public Gtk::Layout
     {
+    public:
+      TrackBody* rootBody_;
       
+      TimelineCanvas();
     };
   
   
diff --git a/src/gui/timeline/track-body.cpp b/src/gui/timeline/track-body.cpp
index 081a85842..f953432bc 100644
--- a/src/gui/timeline/track-body.cpp
+++ b/src/gui/timeline/track-body.cpp
@@ -56,20 +56,40 @@
 namespace gui {
 namespace timeline {
   
-  
-  
-  
-  
-  TrackBody::TrackBody ()
-    {
-    }
-  
-  
-  TrackBody::~TrackBody()
-  {
+  namespace {
+    const uint DEFAULT_OVERVIEW_HEIGHT_px = 20;
+    const uint DEFAULT_CONTENT_HEIGHT_px = 80;
   }
   
   
   
   
+  TrackBody::TrackBody()
+    : overviewHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
+    , contentHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
+    , subTracks_{}
+    { }
+  
+  
+  TrackBody::~TrackBody()
+  {
+    TODO ("detach from parent; store a functor or backreference");
+  }
+  
+  
+  /**
+   * recursively calculate the height in pixels to display this track,
+   * including all nested sub-tracks
+   */
+  uint
+  TrackBody::calcHeight()
+  {
+    uint heightSum = overviewHeight_ + contentHeight_;
+    for (TrackBody* subTrack : subTracks_)
+      heightSum += subTrack->calcHeight();
+    return heightSum;
+  }
+  
+  
+  
 }}// namespace gui::timeline
diff --git a/src/gui/timeline/track-body.hpp b/src/gui/timeline/track-body.hpp
index df8479122..0abcdf4e5 100644
--- a/src/gui/timeline/track-body.hpp
+++ b/src/gui/timeline/track-body.hpp
@@ -45,7 +45,7 @@
 //#include "lib/util.hpp"
 
 //#include <memory>
-//#include <vector>
+#include <vector>
 
 
 
@@ -54,14 +54,32 @@ namespace timeline {
   
   
   /**
-   * @todo WIP-WIP as of 12/2016
+   * Helper to organise and draw the space allocated for a fork of sub-tracks.
+   * TrackBody units work together with the TimelineCanvas, which arranges all
+   * elements placed into the tracks and performs custom drawing to mark the
+   * working space available for placing those elements (Clips, Effects, Markers).
+   * A given TrackBody works with coordinates relative to its vertical starting point;
+   * coordinates on the TimelineCanvas operate from top downwards. The fundamental
+   * task of a TrackBody is to find out about its own overall height, including the
+   * overall height require by all its nesting children. Moreover, the height of
+   * the content area needs to be negotiated with the actual content elements.
+   * @todo WIP-WIP as of 10/2018
    */
   class TrackBody
     {
+      uint overviewHeight_;
+      uint contentHeight_;
+      
+      using SubTracks = std::vector<TrackBody*>;
+      
+      SubTracks subTracks_;
+      
     public:
       TrackBody ();
      ~TrackBody();
-     
+      
+      uint calcHeight();
+      
     private:/* ===== Internals ===== */
      
     };
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index 39d9c1a46..a2a2244ee 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -87,6 +87,11 @@ namespace timeline {
           anchorDisplay (head, body);
         }
       
+     ~DisplayFrame()
+        {
+          TODO ("cause the managed presentation elements to detach from their parents");
+        }
+      
       void
       injectSubTrack (TrackHeadWidget& head, TrackBody& body)
         {
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 6f6782833..50f931a66 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -18908,7 +18908,7 @@
 <icon BUILTIN="idea"/>
 </node>
 </node>
-<node CREATED="1540511179218" ID="ID_1592328868" MODIFIED="1540597814664" TEXT="Problem: Ankerpunkt">
+<node CREATED="1540511179218" FOLDED="true" ID="ID_1592328868" MODIFIED="1540951696891" TEXT="Problem: Ankerpunkt">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1540511250489" ID="ID_49278916" MODIFIED="1540511273407" TEXT="wie h&#xe4;ngt man die ganze Struktur auf?"/>
 <node CREATED="1540511274366" ID="ID_1134388060" MODIFIED="1540511281241" TEXT="L&#xf6;sungsans&#xe4;tze">
@@ -19039,7 +19039,7 @@
 </node>
 <node CREATED="1540588158613" ID="ID_725383313" MODIFIED="1540588172897" TEXT="Funktor ist...">
 <node CREATED="1540588173682" ID="ID_1607525948" MODIFIED="1540588180650" TEXT="entweder ein virtueller dispatch"/>
-<node CREATED="1540588181550" ID="ID_1634888629" MODIFIED="1540588240683" TEXT="oder de-factor generisch">
+<node CREATED="1540588181550" ID="ID_1634888629" MODIFIED="1540951684741" TEXT="oder de-facto generisch">
 <linktarget COLOR="#14409c" DESTINATION="ID_1634888629" ENDARROW="Default" ENDINCLINATION="-255;27;" ID="Arrow_ID_797597310" SOURCE="ID_417702154" STARTARROW="None" STARTINCLINATION="224;-18;"/>
 </node>
 </node>
@@ -19146,6 +19146,24 @@
 </node>
 <node CREATED="1540641317386" ID="ID_151954769" MODIFIED="1540684353686" TEXT="Canvas">
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_151954769" ENDARROW="Default" ENDINCLINATION="68;9;" ID="Arrow_ID_1923805019" SOURCE="ID_18552766" STARTARROW="None" STARTINCLINATION="110;25;"/>
+<node CREATED="1540951718734" HGAP="56" ID="ID_179159881" MODIFIED="1540951729689" TEXT="TrackBody" VSHIFT="11">
+<node CREATED="1540951732747" ID="ID_879954288" MODIFIED="1540951770897" TEXT="kein Widget, sondern eine Hilfs-Struktur"/>
+<node CREATED="1540951833141" ID="ID_387631457" MODIFIED="1540951859869" TEXT="erledigt f&#xfc;r den Canvas das Zeichnen f&#xfc;r einen Track"/>
+<node CREATED="1540951862399" ID="ID_708158546" MODIFIED="1540951902567" TEXT="relative Koordinaten (und sowiso nur vertikal)"/>
+<node CREATED="1540951873159" ID="ID_1843757439" MODIFIED="1540951880554" TEXT="kennt aber seine eigene H&#xf6;he"/>
+<node CREATED="1540951934151" ID="ID_1702719060" MODIFIED="1540951945593" TEXT="Bestandteile">
+<node CREATED="1540951946493" ID="ID_803471574" MODIFIED="1540951952401" TEXT="overview ruler"/>
+<node CREATED="1540951953036" ID="ID_1163326543" MODIFIED="1540951958127" TEXT="content area"/>
+<node CREATED="1540951987535" ID="ID_1044870207" MODIFIED="1540952016368" TEXT="sub-content"/>
+<node CREATED="1540952017027" ID="ID_1004640509" MODIFIED="1540952034477" TEXT="Sequenz von (nested) sub TrackBody"/>
+</node>
+<node CREATED="1540953620811" ID="ID_421197092" MODIFIED="1540953623748" TEXT="Aufgaben">
+<node CREATED="1540953625171" ID="ID_1987245010" MODIFIED="1540953631853" TEXT="sub-TrackBody verwalten"/>
+<node CREATED="1540953632393" ID="ID_132647407" MODIFIED="1540953641353" TEXT="gesamt-H&#xf6;he ermitteln"/>
+<node CREATED="1540953791364" ID="ID_540126417" MODIFIED="1540953808931" TEXT="vertikale Koordinaten zum Platzieren von Content ermitteln"/>
+<node CREATED="1540953642160" ID="ID_1963147841" MODIFIED="1540953662125" TEXT="Hintergrund f&#xfc;r eigenen Bereich zeichnen"/>
+</node>
+</node>
 </node>
 </node>
 </node>

From 13286f4b909b133f7214291832ed8d4b89aaac8f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 1 Nov 2018 20:37:36 +0100
Subject: [PATCH 168/178] ElementBox: define the desired properties of this
 fundamental building block (#1185)

---
 src/gui/timeline/marker-widget.hpp            |   4 +-
 ...abel-widget.cpp => element-box-widget.cpp} |  10 +-
 ...abel-widget.hpp => element-box-widget.hpp} |  20 +-
 wiki/renderengine.html                        |  57 +-
 wiki/thinkPad.ichthyo.mm                      | 689 ++++++++++++------
 5 files changed, 538 insertions(+), 242 deletions(-)
 rename src/gui/widget/{label-widget.cpp => element-box-widget.cpp} (81%)
 rename src/gui/widget/{label-widget.hpp => element-box-widget.hpp} (76%)

diff --git a/src/gui/timeline/marker-widget.hpp b/src/gui/timeline/marker-widget.hpp
index 63e014b8d..45ee015e3 100644
--- a/src/gui/timeline/marker-widget.hpp
+++ b/src/gui/timeline/marker-widget.hpp
@@ -40,7 +40,7 @@
 
 #include "gui/gtk-base.hpp"
 #include "gui/model/widget.hpp"
-#include "gui/widget/label-widget.hpp"
+#include "gui/widget/element-box-widget.hpp"
 
 //#include "lib/util.hpp"
 
@@ -65,7 +65,7 @@ namespace timeline {
    */
   class MarkerWidget
     : public model::Widget
-    , public widget::LabelWidget
+    , public widget::ElementBoxWidget
     {
       MarkerKind kind_;
       string     name_;
diff --git a/src/gui/widget/label-widget.cpp b/src/gui/widget/element-box-widget.cpp
similarity index 81%
rename from src/gui/widget/label-widget.cpp
rename to src/gui/widget/element-box-widget.cpp
index 1882506df..7156a0e92 100644
--- a/src/gui/widget/label-widget.cpp
+++ b/src/gui/widget/element-box-widget.cpp
@@ -1,5 +1,5 @@
 /*
-  LabelWidget  -  display an ID label, possibly with icon
+  ElementBoxWidget  -  fundamental UI building block to represent a placed element
 
   Copyright (C)         Lumiera.org
     2016,               Hermann Vosseler <Ichthyostega@web.de>
@@ -24,13 +24,13 @@
 /** @file label-widget.cpp
  ** Implementation details of the UI building block to display an ID label.
  ** 
- ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo WIP-WIP-WIP as of 11/2018   ///////////////////////////////////////////////////////////////////////TICKET #1185
  ** 
  */
 
 
 #include "gui/gtk-base.hpp"
-#include "gui/widget/label-widget.hpp"
+#include "gui/widget/element-box-widget.hpp"
 
 //#include "gui/ui-bus.hpp"
 //#include "lib/format-string.hpp"
@@ -59,12 +59,12 @@ namespace widget {
   
   
   
-  LabelWidget::LabelWidget ()
+  ElementBoxWidget::ElementBoxWidget ()
     {
     }
   
   
-  LabelWidget::~LabelWidget()
+  ElementBoxWidget::~ElementBoxWidget()
   {
   }
   
diff --git a/src/gui/widget/label-widget.hpp b/src/gui/widget/element-box-widget.hpp
similarity index 76%
rename from src/gui/widget/label-widget.hpp
rename to src/gui/widget/element-box-widget.hpp
index 904a4b5eb..530961ef0 100644
--- a/src/gui/widget/label-widget.hpp
+++ b/src/gui/widget/element-box-widget.hpp
@@ -1,8 +1,8 @@
 /*
-  LABEL-WIDGET.hpp  -  display an ID label, possibly with icon
+  ELEMENT-BOX-WIDGET.hpp  -  fundamental UI building block to represent a placed element
 
   Copyright (C)         Lumiera.org
-    2016,               Hermann Vosseler <Ichthyostega@web.de>
+    2018,               Hermann Vosseler <Ichthyostega@web.de>
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
@@ -21,7 +21,7 @@
 */
 
 
-/** @file label-widget.hpp
+/** @file element-box-widget.hpp
  ** Widget to render an ID label with associated icon.
  ** This is a UI building block used at various places, e.g. to show
  ** the name of a clip in the media bins or in the timeline, to indicate
@@ -32,13 +32,13 @@
  ** support for picking the icon and the indicator style based on some
  ** notion of _"type"._ 
  ** 
- ** @todo WIP-WIP-WIP as of 12/2016
+ ** @todo WIP-WIP-WIP as of 11/2018   ///////////////////////////////////////////////////////////////////////TICKET #1185
  ** 
  */
 
 
-#ifndef GUI_WIDGET_LABEL_WIDGET_H
-#define GUI_WIDGET_LABEL_WIDGET_H
+#ifndef GUI_WIDGET_ELEMENT_BOX_WIDGET_H
+#define GUI_WIDGET_ELEMENT_BOX_WIDGET_H
 
 #include "gui/gtk-base.hpp"
 
@@ -56,11 +56,11 @@ namespace widget {
   /**
    * @todo WIP-WIP as of 12/2016
    */
-  class LabelWidget
+  class ElementBoxWidget
     {
     public:
-      LabelWidget ();
-     ~LabelWidget();
+      ElementBoxWidget ();
+     ~ElementBoxWidget();
      
     private:/* ===== Internals ===== */
      
@@ -68,4 +68,4 @@ namespace widget {
   
   
 }}// namespace gui::widget
-#endif /*GUI_WIDGET_LABEL_WIDGET_H*/
+#endif /*GUI_WIDGET_ELEMENT_BOX_WIDGET_H*/
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 85fd96bf2..83c8b3293 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2691,7 +2691,7 @@ As starting point, {{red{in winter 2016/17}}} the old (broken) timeline panel wa
 After that initial experiments, my focus shifted to the still unsatisfactory top-level UI structure, and I am working towards an initial integration with Proc-Layer since then.
 </pre>
 </div>
-<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201810281742" tags="GuiPattern design draft" changecount="29">
+<div title="GuiClipWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201611180114" modified="201811011859" tags="GuiPattern design draft" changecount="30">
 <pre>//The representation of a [[media clip|Clip]] for manipulation by the user within the UI.//
 Within Lumiera, a clip is conceived as a //chunk of media,// which can be handled in compound. Clip as such is an abstract concept, which is treated with minimal assumptions...
 * we know that a clip has //media content,// which need not be uniform and can be inherently structured (e.g. several media, several channels, a processing function)
@@ -2723,7 +2723,7 @@ This creates a tension related to the kind of architecture we want to build with
 Starting from the architecture as predetermined by the UI-Bus, it is clear that we have to add a UI-Element for every tangible child entity represented in the (abstracted) model. And the parent entity receiving a diff and adding such a child element is also in charge of that element, controlling its lifecycle. Yet this child element is not necessarily bound to be a widget. This is our chance here: what &quot;adding&quot; means is completely within the scope of the parent element and basically an implementation detail. So the parent may create and own a tracker or controller object to stand for the clip, and the latter may create and adjust the actual widget in negotiation with a display strategy. So effectively we're introducing a //mediator,// which represents the clip (as far as the modelling is concerned) and which at the same time communicates with a global display manager. We call this mediating entity a ClipPresenter
 
 !!!how to carry out the clip appearances
-Initially, one could think that we'd need to build several widgets to realise the wide variety of clip appearances. But in fact it turns out that we're able to reshape a single base widget to encompass all the necessary presentation styles. This base widget is a simple, one-element container, with {{{Gtk::Frame}}} being the most obvious pick. This gives us already a rectangular covered space, and the ability to add a label widget, optionally with controlled alignment of the label. All the more elaborate presentation styles can be achieved by adding a canvas widget into this frame and then placing additional stuff on top of that. The only tricky part arises in overview display, when just some clip rectangle can stand-in for a whole series of clips, which themselves remain hidden as UI elements.
+Initially, one could think that we'd need to build several widgets to realise the wide variety of clip appearances. But in fact it turns out that we're able to reshape a single base widget to encompass all the presentation styles. Almost all of the necessary styles, to be more precise, omitting the mere overview drawing where several entities are combined into a single box. However, this basic [[element-box-widget|GuiElementBoxWidget]] can be generalised, and even used beyond the clip display itself. It is a simple, one-element container, with an Icon and a textual label. This gives us already a rectangular covered space, and the ability to include a menu and to control the alignment of the label. All the more elaborate presentation styles can be achieved by adding a canvas widget into this frame and then placing additional stuff on top of that. The only tricky part arises in overview display, when just some clip rectangle can stand-in for a whole series of clips, which themselves remain hidden as UI elements.
 
 A prime consideration regarding this whole clip presentation strategy is the performance concern. It is quite common for movie edits to encompass several hundred individual clips. Combined with several tracks and an elaborate audio edit, it may well happen that we end up with thousands of individual UI objects. If treated naively, this load might seriously degrade the responsiveness of the interface. Thus we need to care for the relevant infrastructure to enable optimisation of the display. For that reason, the memory footprint of the ClipPresenter and the basic widget has to be kept as small as possible. And moreover, since we do our own layout management in the timeline display, in theory it is possible //only to add// those widgets to the enclosing GTK container, which are //actually about to become visible.// (if we follow this approach, a problem yet to be solved is how to remove widgets falling out of sight, since removing N widgets easily turns into a quadratic operation).
 
@@ -3231,6 +3231,48 @@ Each top-level window //holds a single dock,// which in turn might hold several
 !!!Panel Locator
 In accordance with this structure, we introduce a central component, the {{{PanelLocator}}} -- to keep track of all {{{DockArea}}} elements within the UI. The latter are responsible for managing the docking panels //within a specific// top-level {{{WorkspaceWindow}}}.
 
+</pre>
+</div>
+<div title="GuiElementBoxWidget" creator="Ichthyostega" modifier="Ichthyostega" created="201811011919" modified="201811011920" tags="GuiPattern spec draft" changecount="4">
+<pre>//A building block used pervasively throughout the Lumiera UI  to represent a named entity.//
+This widget presents a horizontally extended body, which holds a characteristic ''Head-Triplet'' of visual Elements:
+* an //Icon// to create the visual anchor point. In many cases, this will be ''the Placment Icon'' (a hallmark of Lumiera's UI)
+* a //Menu Button// -- in fact a small downward arrow, which can be flipped upwards (expand/collapse)
+* a //Text Label// designating the element
+
+This characteristic cadence of elements gives us a horizontal box with distinct extension, and an arrangement to attach menu actions and a possibly extended display style. This arrangement can be used for...
+* Markers
+* Elements in the Bins (Clips, Media, Effects, Assets....)
+* abridged display of Clips (and Effects)
+* the Effect-bar to mark the presence of an Effect
+* for the Track heads in the Timeline Header pane
+* for ~Clip-Placement and name
+
+&amp;rarr; see also [[Ticket #1185|https://issues.lumiera.org/ticket/1185]].
+
+!Properties
+* the Icon shall be easily configurable (from the coding view point, of course this is all hard wired in the code or the theme)
+** the default is to configure the ''Placement Icon''
+** alternatively a ~Stock-ID can be given
+* the horizontal extension is easy to control, through several options
+** natural extension; don't give any ''size request'', let GTK figure out the extension rather
+** set a fixed length-limit, causing the text label to be abridged eventually
+** proportional head-placement
+* the body may optionally hold another GTK widget, in which case the head-triplet aligns to the upper side
+
+We offer pre-arranged options for standard wiring of interaction response
+* when the Icon is a Placement, it will launch the [[Placement-Pop-up|GuiPlacementDisplay]] -- which in turn can be de-modalised, thereby allocating a place in the [[Property grid pane|GuiPropertyPane]]. When such a placement control already is open and allocated, the click to the placement icon will lead there.
+* in the most basic case, there is only one common binding, which is a signal, emitted when clicking on the icon or the menu button
+* yet there can be two distinct bindings (signals) for the icon and the button
+* the ''Expander'' (which is part of the UI-Element protocol) is pre-wired with the arrow on the menu button, to yield a visible clue for the expand/collapse state
+* each of the bindings can be easily replaced by a [[pop-up menu|GuiPopupMenu]]
+
+!!!proportional Head placement
+This behaviour pattern (see [[#1186|https://issues.lumiera.org/ticket/1186]]) is a distinguishing trait of the Lumiera timeline display. It indicates elements with a temporal extension surpassing the current display window. Such elements are typically represented by an {{{ElementBoxWidget}}} with an large horizontal extension. Yet when scrolling, the head-triplet shall always remain within the visible area, but it will slowly glide from one side to the other, thereby indicating the our relative position. This pattern of behaviour matters, since, together with the scolled content display, it creates the dominant movement when scrolling an extended timeline
+
+''Technically'', this has to be build as a self-contained component, which can be unit-tested. The input and reference is a &quot;Window&quot; (in fact an interval) together with its start position //relative// to the element's own start position. The component has to derive from this input the actual relational configuration of the window's extension with respect to its own extension. For context, the //window// corresponds to the visible area, which can be larger, smaller disjoint, partially overlapping and fully contained. Please note that ''handling the relations of intervals is a notoriously challenging problem.''
+
+Especially when the component determines a placement of the //window// within its own extension, it has to derive a proportional placement position, which can be used to arrange the head-triplet of the {{{EventBoxWidget}}}. This proportional placement needs to reflect the location of the window within the overall extension, similar to the hand of a scrollbar. However, when the extension of the head-triplet, together with its placement disallows to show the the triplet unclipped, the triplets shall just be clipped naturally. Ideally, there would be a soft graceful transition between those two representation modes.
 </pre>
 </div>
 <div title="GuiFacade" modifier="Ichthyostega" created="200902080719" modified="201708041501" tags="def spec" changecount="1">
@@ -3393,15 +3435,24 @@ The most fundamental principle is that of ''subsidiarity'': we understand both &
 Based on these foundations, we shape and form the core part of the interface, which is the [[timeline display|GuiTimelineView]]
 </pre>
 </div>
-<div title="GuiPlacementDisplay" creator="Ichthyostega" modifier="Ichthyostega" created="201810281744" modified="201810281751" tags="spec GuiPattern draft" changecount="2">
+<div title="GuiPlacementDisplay" creator="Ichthyostega" modifier="Ichthyostega" created="201810281744" modified="201811011910" tags="spec GuiPattern draft" changecount="3">
 <pre>A cross-cutting and somewhat tricky concern is how to represent and expose the [[MObject Placements|Placement]] within the UI.
 For one, a Placement is a set of rules picked up from enclosing scopes -- and it is one of the most fundamental traits of Lumiera that the user is able to edit those placement rules. Yet the combination and final application of those rules also materialises itself into actual properties of the objects of the edit session -- most notably the time position of any element. Consequently, parts of the Placement are unfolded to appear as properties of the placed object, as far as the UI representation is concerned. However, Placement as a generic building block is prominently exposed, insofar pretty much every entity you'll see in the UI has the ability to &quot;edit its placement&quot;. This is indicated by a characteristic Icon decoration, leading to a common placement editor, where the user can
 * see all the explicitly given locating pins
 * see the effective, resulting ExplicitPlacement
 * add and manipulate existing rules
 To support this generic setup, pretty much every UI element needs to be outfitted with a &quot;placement&quot; attribute, to reflect those distinct information to be exposed in aforementioned placement edit UI.
+&amp;rarr; see also [[Ticket #1188|https://issues.lumiera.org/ticket/1188]].
 </pre>
 </div>
+<div title="GuiPopupMenu" creator="Ichthyostega" modifier="Ichthyostega" created="201811011924" tags="GuiPattern design draft" changecount="1">
+<pre>//Organisation of Pop-up menus in the Lumiera UI.//
+A pop-up is created on right click on the associated element, which thereby exposes its //methods for manipulation.// As such this arrangement incorporates the principle of ''object orientation'' into the interactive user interface.
+
+The foundation of population and display of pop-up menues is provided by GTK -- however the //»object orientation«// is our actual design concern here.
+
+{{red{OMG 11/2018 -- I have no idea where to start here...}}}</pre>
+</div>
 <div title="GuiStart" modifier="Ichthyostega" created="200812050525" modified="201808070201" tags="GuiIntegration GuiPattern" changecount="9">
 <pre>Starting up the GUI is optional and is considered part of the Application start/stop and lifecycle.
 * main and {{{lumiera::AppState}}} activate the lifecyle methods on the ~GuiSubsysDescriptor, accessible via the GuiFacade
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 50f931a66..564be6475 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -5378,7 +5378,7 @@
 </node>
 <node CREATED="1534336252375" HGAP="216" ID="ID_1755017021" MODIFIED="1538938719705" TEXT="Hilfsmittel" VSHIFT="6">
 <node CREATED="1534336320373" ID="ID_708892482" MODIFIED="1534336324377" TEXT="Grundbausteine">
-<node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1539382657200" TEXT="primary widgets">
+<node CREATED="1537659522174" ID="ID_1583657425" MODIFIED="1541088151986" TEXT="primary widgets">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5408,13 +5408,14 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1537659866783" ID="ID_1613745412" MODIFIED="1538941006509" TEXT="Timeline">
 <linktarget COLOR="#7d91d6" DESTINATION="ID_1613745412" ENDARROW="Default" ENDINCLINATION="-63;-32;" ID="Arrow_ID_1377777978" SOURCE="ID_1327960211" STARTARROW="None" STARTINCLINATION="-144;16;"/>
 </node>
 <node CREATED="1537659870415" ID="ID_1181375258" MODIFIED="1537659875274" TEXT="Property-Grid"/>
 </node>
-<node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1539382657211" TEXT="building blocks">
+<node CREATED="1537659527741" ID="ID_856745741" MODIFIED="1541088151997" TEXT="building blocks">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5441,7 +5442,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1538583873795" ID="ID_1515056203" MODIFIED="1538583876382" TEXT="spezifisch">
 <node CREATED="1537659880597" ID="ID_1214109906" MODIFIED="1537659889631" TEXT="Timecode"/>
 <node CREATED="1537659890292" ID="ID_1230379898" MODIFIED="1537659892520" TEXT="Placement"/>
@@ -5456,7 +5458,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1539382657231" TEXT="frameworks">
+<node CREATED="1537961656982" ID="ID_1251358269" MODIFIED="1541088152015" TEXT="frameworks">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5466,7 +5468,8 @@
       vorbereitete Grundstrukturen f&#252;r immer wiederkehrende Setups
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <node CREATED="1537961734956" FOLDED="true" ID="ID_345535043" MODIFIED="1538583863918" TEXT="Notebook-Widget">
 <node CREATED="1537961776184" ID="ID_167848646" MODIFIED="1537961791126" TEXT="Problematik">
 <icon BUILTIN="forward"/>
@@ -5661,7 +5664,7 @@
 <node CREATED="1538710388956" ID="ID_17203500" MODIFIED="1538710402683" TEXT="in GTK-3 entspricht das window">
 <icon BUILTIN="forward"/>
 </node>
-<node CREATED="1538710407602" ID="ID_1860886507" MODIFIED="1539382657296" TEXT="Regel...">
+<node CREATED="1538710407602" ID="ID_1860886507" MODIFIED="1541088152050" TEXT="Regel...">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5674,7 +5677,8 @@
       Im Zweifelsfall den GTK+ Inspector verwenden!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5693,7 +5697,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="stop-sign"/>
 </node>
-<node COLOR="#338800" CREATED="1538696720743" ID="ID_50558236" MODIFIED="1539382657310" TEXT="ersatzlos entfernt">
+<node COLOR="#338800" CREATED="1538696720743" ID="ID_50558236" MODIFIED="1541088152060" TEXT="ersatzlos entfernt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5703,7 +5707,8 @@
       CSS gen&#252;gt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -5716,7 +5721,7 @@
 <node CREATED="1538696930403" HGAP="38" ID="ID_280002018" MODIFIED="1538697125725" TEXT="Idee: &quot;inherit&quot; auf h&#xf6;chster Ebene" VSHIFT="3">
 <icon BUILTIN="idea"/>
 <node CREATED="1538696962271" ID="ID_46020871" MODIFIED="1538696986223" TEXT="unser Stylesheet hat GTK_STYLE_PROVIDER_PRIORITY_APPLICATION"/>
-<node CREATED="1538696988803" ID="ID_1662822982" MODIFIED="1539382657321">
+<node CREATED="1538696988803" ID="ID_1662822982" MODIFIED="1541088152071">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -5751,7 +5756,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5825,7 +5831,7 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1493853541747" ID="ID_689819683" MODIFIED="1518487921059" TEXT="TODO">
 <icon BUILTIN="flag-yellow"/>
-<node CREATED="1493853548739" ID="ID_949985796" MODIFIED="1539382657342" TEXT="Project &amp; Controller restlos entfernen">
+<node CREATED="1493853548739" ID="ID_949985796" MODIFIED="1541088152098" TEXT="Project &amp; Controller restlos entfernen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5838,10 +5844,11 @@
       da&#223; die alte, obsolete Timeline zur&#252;ckgebaut ist
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="hourglass"/>
 </node>
-<node CREATED="1493853590149" ID="ID_1075149702" MODIFIED="1539382657347" TEXT="Race beim triggerShutdown">
+<node CREATED="1493853590149" ID="ID_1075149702" MODIFIED="1541088152104" TEXT="Race beim triggerShutdown">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5857,7 +5864,8 @@
       bevor die Notification-Facade ge&#246;ffnet werden konnte
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5909,7 +5917,7 @@
 <icon BUILTIN="bell"/>
 <node CREATED="1495234856782" ID="ID_1605922951" MODIFIED="1518487921060" TEXT="machen wir bisher nicht"/>
 <node CREATED="1495234865717" ID="ID_1261122199" MODIFIED="1518487921060" TEXT="ist das notwendig?"/>
-<node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1539382657363" TEXT="wohl nicht">
+<node CREATED="1538588192126" ID="ID_1032145387" MODIFIED="1541088152127" TEXT="wohl nicht">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -5940,7 +5948,8 @@
       Allerdings habe ich an der Stelle immer noch GTK-Assertions
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 </node>
@@ -5988,7 +5997,7 @@
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1493768617653" ID="ID_292624709" MODIFIED="1518487921060" TEXT="f&#xe4;llt anscheinend ersatzlos weg"/>
 <node CREATED="1493768625564" ID="ID_1620270152" MODIFIED="1518487921060" TEXT="Verdacht: stattdessen Gtk::Application"/>
-<node CREATED="1495218227391" ID="ID_1156276489" MODIFIED="1539382657381" TEXT="Beschlu&#xdf;: vorerst Gtk::Action / ActionGroup weiter verwenden">
+<node CREATED="1495218227391" ID="ID_1156276489" MODIFIED="1541088152152" TEXT="Beschlu&#xdf;: vorerst Gtk::Action / ActionGroup weiter verwenden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -6016,7 +6025,8 @@
       ist, da&#223; Gio::Application sofort auch gleich eine dBus-Verbindung hochf&#228;hrt.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1485457105010" HGAP="49" ID="ID_202831328" MODIFIED="1518487921060" TEXT="neuer Weg" VSHIFT="21">
@@ -16627,7 +16637,7 @@
 <node CREATED="1539294589200" ID="ID_1206613848" MODIFIED="1539382645426" TEXT="ja">
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node CREATED="1539294594367" ID="ID_451112886" MODIFIED="1539382645426" TEXT="wenn InteractionDirector selber ein Diff empf&#xe4;ngt...">
+<node CREATED="1539294594367" ID="ID_451112886" MODIFIED="1541088152267" TEXT="wenn InteractionDirector selber ein Diff empf&#xe4;ngt...">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -16643,7 +16653,8 @@
       und daher auf &quot;inaktiv&quot; geschaltet ist.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1539294678444" ID="ID_934706379" MODIFIED="1539382645426" TEXT="TreeMutator scheitert per Default">
@@ -17033,7 +17044,7 @@
 <node CREATED="1485126466520" ID="ID_717310004" MODIFIED="1518487921077" TEXT="WindowManager" VSHIFT="34">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1485457325724" ID="ID_1954589768" MODIFIED="1518487921077" TEXT="nur f&#xfc;r die Hauptfenster zust&#xe4;ndig"/>
-<node CREATED="1485457328043" ID="ID_1787642462" MODIFIED="1539382657537" TEXT="wir haben kein ApplicationWindow">
+<node CREATED="1485457328043" ID="ID_1787642462" MODIFIED="1541088152359" TEXT="wir haben kein ApplicationWindow">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17043,7 +17054,8 @@
       ...denn das ist das vereinfachte Setup f&#252;r &quot;einfache&quot; Applikationen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1485457370310" ID="ID_1931452525" MODIFIED="1518487921077" TEXT="GtkWindow sind v&#xf6;llig ausreichend"/>
@@ -17419,7 +17431,7 @@
 <icon BUILTIN="yes"/>
 <node CREATED="1504386527936" ID="ID_307889825" MODIFIED="1518487921078" TEXT="mu&#xdf; ID finden k&#xf6;nnen"/>
 <node CREATED="1504386535447" ID="ID_426578263" MODIFIED="1518487921078" TEXT="brauche Service zum Erzeugen/L&#xf6;schen"/>
-<node CREATED="1504386595679" ID="ID_1383687482" MODIFIED="1539382657630" TEXT="Mutation: brauche Model-Platzhalter">
+<node CREATED="1504386595679" ID="ID_1383687482" MODIFIED="1541088152453" TEXT="Mutation: brauche Model-Platzhalter">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17429,9 +17441,10 @@
       das Diff wird auf den Platzhalter angewendet
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1504386636074" ID="ID_1996752633" MODIFIED="1539382657639" TEXT="automatisches Management von&#xf6;ten">
+<node CREATED="1504386636074" ID="ID_1996752633" MODIFIED="1541088152460" TEXT="automatisches Management von&#xf6;ten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17444,7 +17457,8 @@
       dann mu&#223; dieses automatisch deregistriert werden
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1504371342426" ID="ID_869653682" MODIFIED="1518487921078">
 <richcontent TYPE="NODE"><html>
@@ -17586,7 +17600,129 @@
 <node CREATED="1480639254498" ID="ID_601165955" MODIFIED="1518487921078" TEXT="Placement"/>
 <node CREATED="1480639279591" ID="ID_887618627" MODIFIED="1518487921078" TEXT="Timecode"/>
 <node CREATED="1480639276064" ID="ID_1418536459" MODIFIED="1518487921078" TEXT="Fader"/>
-<node CREATED="1480639258169" ID="ID_1876553930" MODIFIED="1518487921078" TEXT="Label"/>
+<node CREATED="1480639258169" ID="ID_1876553930" MODIFIED="1518487921078" TEXT="Label">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1541096032389" TEXT="ElementBoxWidget">
+<linktarget COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_703893400" SOURCE="ID_1437927701" STARTARROW="None" STARTINCLINATION="42;-316;"/>
+<linktarget COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_1199047781" SOURCE="ID_1032237384" STARTARROW="None" STARTINCLINATION="-698;-271;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541095743511" ID="ID_96949358" MODIFIED="1541095747919" TEXT="#1185 ElementBoxWidget">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node CREATED="1541087843514" ID="ID_1798999985" MODIFIED="1541088029228" TEXT="weit verbreiteter Grundbaustein">
+<icon BUILTIN="idea"/>
+<node CREATED="1541087865477" ID="ID_1163649496" MODIFIED="1541087869907" TEXT="f&#xfc;r Marker"/>
+<node CREATED="1541087870503" ID="ID_1325112319" MODIFIED="1541087879235" TEXT="abridged Clip"/>
+<node CREATED="1541087879886" ID="ID_979570785" MODIFIED="1541087987811" TEXT="Effekt-Balken"/>
+<node CREATED="1541087988423" ID="ID_1910744352" MODIFIED="1541087991986" TEXT="Elemente in den Bins"/>
+<node CREATED="1541088003117" ID="ID_1033651238" MODIFIED="1541088006913" TEXT="Track-Heads"/>
+<node CREATED="1541088007644" ID="ID_613037557" MODIFIED="1541088014576" TEXT="Clip-Placement und Name"/>
+</node>
+<node CREATED="1541088033426" ID="ID_1557673770" MODIFIED="1541088061985" TEXT="besteht aus drei Komponenten">
+<icon BUILTIN="info"/>
+<node CREATED="1541088065655" ID="ID_1906795297" MODIFIED="1541088068705" TEXT="ein Icon"/>
+<node CREATED="1541088069333" ID="ID_387176460" MODIFIED="1541088076080" TEXT="ein Men&#xfc;-Knopf"/>
+<node CREATED="1541088076739" ID="ID_1484330559" MODIFIED="1541088106948" TEXT="ein Text-Label"/>
+</node>
+<node CREATED="1541088109169" ID="ID_12349251" MODIFIED="1541088113914" TEXT="Eigenschaften">
+<node CREATED="1541088143435" ID="ID_1434785926" MODIFIED="1541088148534" TEXT="Icon einfach vorw&#xe4;hlbar">
+<node CREATED="1541089389797" ID="ID_311117611" MODIFIED="1541089393049" TEXT="Placement"/>
+<node CREATED="1541089394205" ID="ID_1611263820" MODIFIED="1541089399608" TEXT="Stock"/>
+</node>
+<node CREATED="1541088360999" ID="ID_1860524548" MODIFIED="1541088394126" TEXT="horizontale Ausdehnung steuerbar">
+<node CREATED="1541088395516" ID="ID_122658669" MODIFIED="1541088662748" TEXT="nat&#xfc;rlich">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      d.h. das Widget unternimmt selber nichts, und &#252;berl&#228;&#223;t GTK die Gr&#246;&#223;enbestimmung
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1541088402105" ID="ID_857510555" MODIFIED="1541088724384" TEXT="feste L&#xe4;ngenvorgabe">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      d.h. das Text-Label bekommt ggfs. eine L&#228;ngenbeschr&#228;nkung.
+    </p>
+    <p>
+      Und sonst wird er K&#246;rper/Hintergrund ausgedehnt
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1541088480846" ID="ID_6642470" MODIFIED="1541089117148" TEXT="Kopf proportional platzierbar">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Vorgabe ist ein Fenster(=Intervall) und dessen Position relativ zum Widget-Start.
+    </p>
+    <p>
+      Das Widget bestimmt daraus selbst&#228;ndig
+    </p>
+    <ul>
+      <li>
+        wie das Fenster relativ zu seiner eigenen Ausdehnung liegt (Logik von Intervallen ist komplex!)
+      </li>
+      <li>
+        ob es im Besonderen in seinem Inneren liegt, und proportional wo
+      </li>
+      <li>
+        und w&#228;hlt dem entsprechend die Platzierung des &quot;Kopf&quot;-Handles (Icon+Label)
+      </li>
+    </ul>
+    <p>
+      Das Resultat ist, da&#223; der Kopf dynamisch und proportional mitrollt,
+    </p>
+    <p>
+      &#228;hnlich wie das Handle einer Scrollbar. Damit bleibt der Kopf
+    </p>
+    <p>
+      stets zugreifbar, und gibt einen Hinweis auf die Gesamtlage.
+    </p>
+    <p>
+      <b>Sehr wichtig</b>&#160;f&#252;r die Anzeige von <b>langen Clips</b>&#160;und Effekten.
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541095770851" ID="ID_1856155420" MODIFIED="1541095777177" TEXT="#1186 proportional Head placement">
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+</node>
+<node CREATED="1541089256961" ID="ID_1928362240" MODIFIED="1541089278112" TEXT="der Body  kann optoinal ein anderes Widget halten"/>
+<node CREATED="1541089279788" ID="ID_798853169" MODIFIED="1541089343007" TEXT="Standard-Verdrahtung">
+<node CREATED="1541089452455" ID="ID_1363384956" MODIFIED="1541089458088" TEXT="Icon == Placement">
+<node CREATED="1541089459079" ID="ID_1295238871" MODIFIED="1541089467494" TEXT="Klick auf Placement"/>
+<node CREATED="1541089468035" ID="ID_1760862573" MODIFIED="1541089479509" TEXT="f&#xfc;hrt in den Placement-Editor"/>
+<node CREATED="1541089480558" ID="ID_562547203" MODIFIED="1541089491099" TEXT="kann Pop-Up sein, oder im Property-Grid"/>
+</node>
+<node CREATED="1541089502918" ID="ID_1500762782" MODIFIED="1541089525047" TEXT="nur ein (gemeinsames) Binding">
+<node CREATED="1541089526108" ID="ID_1032155020" MODIFIED="1541089529150" TEXT="Signal"/>
+</node>
+<node CREATED="1541089531186" ID="ID_1668113871" MODIFIED="1541089537845" TEXT="zwei Bindings">
+<node CREATED="1541089538704" ID="ID_454635570" MODIFIED="1541089541757" TEXT="Icon-Signal"/>
+<node CREATED="1541089542345" ID="ID_1226950315" MODIFIED="1541089576912" TEXT="Arrow-Signal"/>
+</node>
+<node CREATED="1541089600063" ID="ID_1799506646" MODIFIED="1541089605820" TEXT="Expander mit Arrow verbunden"/>
+<node CREATED="1541089613961" ID="ID_857454578" MODIFIED="1541089635704" TEXT="jedes Binding kann d&#xfc;rch ein Pop-Up-Men&#xfc; ersetzt werden"/>
+</node>
+</node>
+</node>
 <node CREATED="1480639267600" ID="ID_671046048" MODIFIED="1518487921078" TEXT="Clip"/>
 <node CREATED="1480639365715" ID="ID_743867283" MODIFIED="1518487921078" TEXT="Bin"/>
 </node>
@@ -17689,7 +17825,7 @@
 <node CREATED="1477600044069" ID="ID_217967290" MODIFIED="1518487921079" TEXT="technisch">
 <node CREATED="1477600126514" ID="ID_1433799303" MODIFIED="1518487921079" TEXT="grunds&#xe4;tzlich....">
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
-<node CREATED="1477600134217" ID="ID_1352260964" MODIFIED="1539382657797" TEXT="wie viel selber machen?">
+<node CREATED="1477600134217" ID="ID_1352260964" MODIFIED="1541088152670" TEXT="wie viel selber machen?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17702,7 +17838,8 @@
       und welchen Teil des Verhaltens &#252;berlassen wir GTK
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1477600216950" ID="ID_1935952349" MODIFIED="1518487921079" TEXT="focus">
@@ -17743,7 +17880,7 @@
 </node>
 <node CREATED="1479678484210" ID="ID_1561971595" MODIFIED="1518487921079" TEXT="Struktur">
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-<node CREATED="1479678503071" ID="ID_806149006" MODIFIED="1539382657823" TEXT="Grid bringt nix">
+<node CREATED="1479678503071" ID="ID_806149006" MODIFIED="1541088152716" TEXT="Grid bringt nix">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17759,7 +17896,8 @@
       Details im&#160;&#160;TiddlyWiki....
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1479678634213" ID="ID_432405176" MODIFIED="1518487921079" TEXT="rekursive Struktur schaffen">
@@ -17812,7 +17950,7 @@
 <node CREATED="1480724724585" ID="ID_576219568" MODIFIED="1518487921080" TEXT="mu&#xdf; f&#xfc;r alle Struktur&#xe4;nderungen delegieren"/>
 <node CREATED="1480724738583" ID="ID_403933116" MODIFIED="1518487921080" TEXT="Achtung: Tangible is noncopyable">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1480724761876" ID="ID_335451126" MODIFIED="1539382657865" TEXT="wegen BusTerm">
+<node CREATED="1480724761876" ID="ID_335451126" MODIFIED="1541088152754" TEXT="wegen BusTerm">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17822,7 +17960,8 @@
       braucht feste Speicher-Addresse
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480724781801" ID="ID_198046255" MODIFIED="1518487921080" TEXT="folglich: nicht in STL-Container">
 <icon BUILTIN="stop-sign"/>
@@ -17831,7 +17970,7 @@
 </node>
 <node CREATED="1480724461860" ID="ID_865875607" MODIFIED="1518487921080" TEXT="Controller is Tangible">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1480724851312" ID="ID_1653680733" MODIFIED="1539382657875" TEXT="erzeugt R&#xfc;ckbezug f&#xfc;r Notifications">
+<node CREATED="1480724851312" ID="ID_1653680733" MODIFIED="1541088152763" TEXT="erzeugt R&#xfc;ckbezug f&#xfc;r Notifications">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17844,7 +17983,8 @@
       und sei es auch blo&#223; &#252;ber ein Interface!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480724910096" ID="ID_874781354" MODIFIED="1518487921080" TEXT="kann direkt das View-Modell manipulieren"/>
 <node CREATED="1480724927814" ID="ID_1912287440" MODIFIED="1518487921080" TEXT="ist nicht direkt erreichbar">
@@ -17859,7 +17999,7 @@
 <icon BUILTIN="idea"/>
 <node CREATED="1480724983774" ID="ID_845297603" MODIFIED="1518487921080" TEXT="hei&#xdf;t: Manipulation au&#xdf;erhalb des Diff-Systems"/>
 <node CREATED="1480725000029" ID="ID_1586514211" MODIFIED="1518487921080" TEXT="wir steigen stets auf Ebene einer Timeline ein"/>
-<node CREATED="1480725012731" ID="ID_9332776" MODIFIED="1539382657892">
+<node CREATED="1480725012731" ID="ID_9332776" MODIFIED="1541088152776">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -17893,7 +18033,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1480725106478" ID="ID_550796340" MODIFIED="1518487921080" TEXT="effektiv auch die L&#xf6;sung f&#xfc;r Alternative-2">
@@ -17964,7 +18105,7 @@
 <node CREATED="1487466986523" ID="ID_39632539" MODIFIED="1518487921080" TEXT="zun&#xe4;chst unterbinden">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1539258805201" ID="ID_1227431164" MODIFIED="1539258881356" TEXT="gegenw&#xe4;rtig Pr&#xe4;ferenz erkennbar....">
+<node CREATED="1539258805201" ID="ID_1227431164" MODIFIED="1541088152809" TEXT="gegenw&#xe4;rtig Pr&#xe4;ferenz erkennbar....">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -17974,7 +18115,8 @@
       ...f&#252;r die dritte L&#246;sung, die Repr&#228;sentation bereits in der Session
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#5793da" DESTINATION="ID_646231524" ENDARROW="Default" ENDINCLINATION="186;21;" ID="Arrow_ID_431447729" STARTARROW="None" STARTINCLINATION="26;-3;"/>
 <icon BUILTIN="info"/>
 </node>
@@ -18062,7 +18204,7 @@
 <node CREATED="1480120531935" ID="ID_1894474191" MODIFIED="1518487921080" TEXT="Dekorator auf TreeMutator">
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1480121069464" ID="ID_1707876611" MODIFIED="1518487921080" TEXT="Operationen mitlesen"/>
-<node CREATED="1480121074703" ID="ID_1346494338" MODIFIED="1539382658482" TEXT="Notifikations-Schnittstelle">
+<node CREATED="1480121074703" ID="ID_1346494338" MODIFIED="1541088152834" TEXT="Notifikations-Schnittstelle">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18078,9 +18220,10 @@
       Implementiert w&#252;rde sie vom jeweiligen Widget
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480123478013" ID="ID_1281325973" MODIFIED="1539382658514" TEXT="eine Ebene zu tief, aber geht noch">
+<node CREATED="1480123478013" ID="ID_1281325973" MODIFIED="1541088152843" TEXT="eine Ebene zu tief, aber geht noch">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18108,9 +18251,10 @@
       Der Dekorator w&#252;rde also auf dem TreeMutator sitzen...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480121092492" ID="ID_1543810707" MODIFIED="1539382658523" TEXT="L&#xf6;schungen nur heuristisch zu erkennen">
+<node CREATED="1480121092492" ID="ID_1543810707" MODIFIED="1541088152850" TEXT="L&#xf6;schungen nur heuristisch zu erkennen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18129,9 +18273,10 @@
       Daher gibt es die matchSrc-Operation. Effektiv wird die aber nur bei einem Delete aufgerufen...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1480123741362" ID="ID_586646895" MODIFIED="1539382658531" TEXT="unsauber, h&#xe4;sslich, ungl&#xfc;cklich">
+<node CREATED="1480123741362" ID="ID_586646895" MODIFIED="1541088152858" TEXT="unsauber, h&#xe4;sslich, ungl&#xfc;cklich">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18152,7 +18297,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1480123380843" ID="ID_1717666432" MODIFIED="1518487921081" TEXT="w&#xe4;re prinzipiell machbar">
 <icon BUILTIN="forward"/>
@@ -18230,7 +18376,7 @@
 <node CREATED="1480300682256" ID="ID_1828380850" MODIFIED="1518487921081" TEXT="Presenter">
 <node CREATED="1480300690191" ID="ID_1405428387" MODIFIED="1518487921081" TEXT="sind lokales Struktur-Modell">
 <node CREATED="1480300733506" ID="ID_186466790" MODIFIED="1518487921081" TEXT="werden per Diff manipuliert"/>
-<node CREATED="1480300740537" ID="ID_1322437138" MODIFIED="1539382658584" TEXT="enthalten die Modell-Binding-Daten">
+<node CREATED="1480300740537" ID="ID_1322437138" MODIFIED="1541088152893" TEXT="enthalten die Modell-Binding-Daten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18240,7 +18386,8 @@
       d.h. eine LUID
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1480300699694" ID="ID_1686150984" MODIFIED="1518487921081" TEXT="aktiver Part der View-Steuerung"/>
@@ -18273,7 +18420,7 @@
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1480725247115" ID="ID_1533101483" MODIFIED="1518487921081" TEXT="Konstruktion erfordert...">
-<node CREATED="1480796814716" ID="ID_1742743432" MODIFIED="1539382658625" TEXT="ID einer Timeline">
+<node CREATED="1480796814716" ID="ID_1742743432" MODIFIED="1541088152916" TEXT="ID einer Timeline">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18286,7 +18433,8 @@
       Irgend eine BareEntryID gen&#252;gt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1540639615789" ID="ID_1775707565" MODIFIED="1540639622736" TEXT="ID des root-Track"/>
 <node CREATED="1480725273775" ID="ID_1495656573" MODIFIED="1518487921081" TEXT="Bus-Term-Referenz"/>
@@ -18350,7 +18498,7 @@
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1480694557112" ID="ID_786517324" MODIFIED="1518487921081" TEXT="Widget ist Startpunkt"/>
 <node CREATED="1480694571310" ID="ID_1188786444" MODIFIED="1518487921081" TEXT="aber Controller wird Chef"/>
-<node CREATED="1480725633399" ID="ID_1475661668" MODIFIED="1539382658797" TEXT="mu&#xdf; erst mal Controller implementieren">
+<node CREATED="1480725633399" ID="ID_1475661668" MODIFIED="1541088152961" TEXT="mu&#xdf; erst mal Controller implementieren">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18360,13 +18508,14 @@
       ...abstraktes Interface
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="smily_bad"/>
 <node CREATED="1480725680713" ID="ID_448125852" MODIFIED="1518487921081" TEXT="Delegate for Notification">
 <icon BUILTIN="help"/>
 </node>
 <node CREATED="1480725704142" ID="ID_992732373" MODIFIED="1540639469012" TEXT="was bleibt abstrakt?">
-<node CREATED="1480725715916" ID="ID_890987188" MODIFIED="1539382658886" TEXT="buildMutator">
+<node CREATED="1480725715916" ID="ID_890987188" MODIFIED="1541088152971" TEXT="buildMutator">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -18382,7 +18531,8 @@
       um die Bindung herzustellen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="ksmiletris"/>
 </node>
 </node>
@@ -19079,7 +19229,12 @@
 <node CREATED="1540683824278" ID="ID_1473337838" MODIFIED="1540684245714" TEXT="ein Grid mit 4 Feldern">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1540683889813" ID="ID_1511067098" MODIFIED="1540684245714" TEXT="2.Quadrant == Placement-Symbol"/>
+<node CREATED="1540683889813" ID="ID_1511067098" MODIFIED="1540684245714" TEXT="2.Quadrant == Placement-Symbol">
+<node CREATED="1541095855984" ID="ID_1032237384" MODIFIED="1541096032389" TEXT="verwendet ElementBoxWidget">
+<arrowlink COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_1199047781" STARTARROW="None" STARTINCLINATION="-698;-271;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
 <node CREATED="1540683900716" ID="ID_212914080" MODIFIED="1540684245714" TEXT="1.Quadrant == Controls"/>
 <node CREATED="1540683916490" ID="ID_191999039" MODIFIED="1540684245714" TEXT="3.Quadrand : leer (Fork)"/>
 <node CREATED="1540683829267" ID="ID_828415712" MODIFIED="1540684245714" TEXT="in 4.Quadrant kommt">
@@ -19183,7 +19338,7 @@
 <node CREATED="1480741397880" ID="ID_299590632" MODIFIED="1518487921083" TEXT="Effekte werden als ClipPresenter implementiert">
 <icon BUILTIN="yes"/>
 </node>
-<node CREATED="1480741425668" ID="ID_826648354" MODIFIED="1539382659317" TEXT="Labels werden als eigenes Tangible MarkerWidget implementiert">
+<node CREATED="1480741425668" ID="ID_826648354" MODIFIED="1541088153082" TEXT="Labels werden als eigenes Tangible MarkerWidget implementiert">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -19193,7 +19348,8 @@
       ...sie verwenden dann ein LabelWidget zur Darstellung
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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 <icon BUILTIN="messagebox_warning"/>
@@ -19203,11 +19359,19 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1240926804" MODIFIED="1538940674093" STYLE="fork" TEXT="Clip-Anzeige">
 <linktarget COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_435369727" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="407;0;"/>
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1541095839946" ID="ID_471098853" MODIFIED="1541095842338" TEXT="Anzeigestil">
 <node CREATED="1538940683586" ID="ID_1478100178" MODIFIED="1538940686198" TEXT="placeholder"/>
 <node CREATED="1538940686978" ID="ID_1747675588" MODIFIED="1538940689470" TEXT="abridged"/>
 <node CREATED="1538940690154" ID="ID_1132412756" MODIFIED="1538940691885" TEXT="collapsed"/>
 <node CREATED="1538940692545" ID="ID_1827979765" MODIFIED="1538940694085" TEXT="expanded"/>
 </node>
+<node CREATED="1541095848871" ID="ID_1480696061" MODIFIED="1541095854691" TEXT="Anzeige-Modi">
+<node CREATED="1541095855984" ID="ID_1437927701" MODIFIED="1541096004448" TEXT="verwendet ElementBoxWidget">
+<arrowlink COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_703893400" STARTARROW="None" STARTINCLINATION="42;-316;"/>
+<icon BUILTIN="idea"/>
+</node>
+</node>
+</node>
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 <icon BUILTIN="flag-yellow"/>
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@@ -19293,7 +19457,7 @@
 <node CREATED="1479434763643" HGAP="48" ID="ID_1572413636" MODIFIED="1518487921083" TEXT="Clip" VSHIFT="32">
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-<node CREATED="1479434780105" ID="ID_239720378" MODIFIED="1539382659341" TEXT="apperances">
+<node CREATED="1479434780105" ID="ID_239720378" MODIFIED="1541088153140" TEXT="apperances">
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@@ -19309,7 +19473,8 @@
       Verwende das als Leitgedanke, um das Layout zu entwickeln
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
 <node CREATED="1479434831825" ID="ID_975727645" MODIFIED="1518487921083" TEXT="abridged form">
 <node CREATED="1479434845992" ID="ID_609815513" MODIFIED="1518487921083" TEXT="media bin, collapsed fork"/>
@@ -20666,7 +20831,7 @@
 <icon BUILTIN="yes"/>
 <node CREATED="1539134197011" ID="ID_1798515652" MODIFIED="1539134282852" TEXT="m&#xf6;gliche Modelle">
 <icon BUILTIN="idea"/>
-<node CREATED="1539134201394" ID="ID_1071210666" MODIFIED="1539134350067" TEXT="UI-Komponente realisiert sich selbst">
+<node CREATED="1539134201394" ID="ID_1071210666" MODIFIED="1541088153327" TEXT="UI-Komponente realisiert sich selbst">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -20684,10 +20849,11 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_cancel"/>
 </node>
-<node CREATED="1539134224759" ID="ID_766070060" MODIFIED="1539134461591" TEXT="Struktur und Realisierung gemeinsam gepusht">
+<node CREATED="1539134224759" ID="ID_766070060" MODIFIED="1541088153333" TEXT="Struktur und Realisierung gemeinsam gepusht">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -20702,7 +20868,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
@@ -20716,7 +20883,7 @@
 <icon BUILTIN="forward"/>
 <node CREATED="1539134702831" ID="ID_250983627" MODIFIED="1539134713209" TEXT="Objekt als leere H&#xfc;lle vorausgesetzt"/>
 <node CREATED="1539134713846" ID="ID_1404883972" MODIFIED="1539134732663" TEXT="schickt alle Details und Inhalte als Diff"/>
-<node CREATED="1539134733747" ID="ID_353086867" MODIFIED="1539135903394">
+<node CREATED="1539134733747" ID="ID_353086867" MODIFIED="1541088153349">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -20741,7 +20908,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#4e31e2" DESTINATION="ID_1189184036" ENDARROW="Default" ENDINCLINATION="-767;-123;" ID="Arrow_ID_156898929" STARTARROW="None" STARTINCLINATION="-1608;-84;"/>
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@@ -21009,7 +21177,7 @@
 <node CREATED="1523019528770" ID="ID_880857626" MODIFIED="1523019581654" TEXT="der real existierende konkrete Inhalt des UI"/>
 <node CREATED="1523019583242" ID="ID_1200584395" MODIFIED="1523019592269" TEXT="ein Wildwuchs an nativen Komponenten"/>
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-<node CREATED="1523019635739" ID="ID_883974404" MODIFIED="1539382661120" TEXT="Einzelfall-Wissen vorausgesetzt">
+<node CREATED="1523019635739" ID="ID_883974404" MODIFIED="1541088153495" TEXT="Einzelfall-Wissen vorausgesetzt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -21028,7 +21196,8 @@
       erfordert bereits Kenntnis der Innereien
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1523019753259" ID="ID_281223690" MODIFIED="1523019759668" TEXT="Einstiegspunkte">
@@ -28086,7 +28255,7 @@
 <node CREATED="1485548878292" ID="ID_49934573" MODIFIED="1518487921090" TEXT="Broadcast"/>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1539382661255" TEXT="Core-Services" VSHIFT="2">
+<node COLOR="#435e98" CREATED="1453545812389" HGAP="43" ID="ID_202253849" MODIFIED="1541088153556" TEXT="Core-Services" VSHIFT="2">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -28099,11 +28268,12 @@
       Implementierung der real-world-Variante fehlt!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#a9b4c1" DESTINATION="ID_1343270939" ENDARROW="Default" ENDINCLINATION="-197;638;" ID="Arrow_ID_1686519160" STARTARROW="Default" STARTINCLINATION="-83;-1020;"/>
 <font NAME="SansSerif" SIZE="13"/>
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-<node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1539382661273" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
+<node CREATED="1453545875627" ID="ID_1411740156" MODIFIED="1541088153563" TEXT="Definition &#xbb;Zentral-Dienste&#xab;">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -28119,7 +28289,8 @@
       wie Session- und State-Managment, Commands etc.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1453545968166" FOLDED="true" ID="ID_399884859" MODIFIED="1538839448111" TEXT="Command-Handler">
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@@ -33414,7 +33585,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1535891065189" FOLDED="true" ID="ID_1233342893" MODIFIED="1539382661581" TEXT="Iterator-Monade">
+<node CREATED="1535891065189" FOLDED="true" ID="ID_1233342893" MODIFIED="1541088153654" TEXT="Iterator-Monade">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -33435,7 +33606,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="pencil"/>
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 <richcontent TYPE="NODE"><html>
@@ -35839,7 +36011,7 @@
 <node CREATED="1539395591547" ID="ID_1807468145" MODIFIED="1539395602517" TEXT="Population-Diff erzeugen"/>
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-<node CREATED="1539395620120" ID="ID_1953087376" MODIFIED="1539395775000" TEXT="Stichwort: asynchrone Kommunkiation">
+<node CREATED="1539395620120" ID="ID_1953087376" MODIFIED="1541088153709" TEXT="Stichwort: asynchrone Kommunkiation">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -35870,7 +36042,8 @@
       Denn letzteres ist bei uns eine Grundannahme. Es gibt keine ungef&#228;hren Diffs!
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -38874,7 +39047,7 @@
 <icon BUILTIN="flag-yellow"/>
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-<node CREATED="1534002113086" ID="ID_1894075831" MODIFIED="1539382661794" TEXT="Audio und Video werden eigens unterschieden">
+<node CREATED="1534002113086" ID="ID_1894075831" MODIFIED="1541088153809" TEXT="Audio und Video werden eigens unterschieden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -38890,14 +39063,15 @@
       Ganz prominent fehlt hier also z.B: MIDI
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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 <icon BUILTIN="flag-yellow"/>
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-<node CREATED="1534002225888" ID="ID_138566211" MODIFIED="1539382661814" TEXT="smart-Ptr als Handle nicht immer sinnvoll">
+<node CREATED="1534002225888" ID="ID_138566211" MODIFIED="1541088153821" TEXT="smart-Ptr als Handle nicht immer sinnvoll">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -38910,7 +39084,8 @@
       die Aufgrund von Klassifikationen automatisch bereits existieren
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -39771,7 +39946,7 @@
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 </node>
-<node CREATED="1535629385583" ID="ID_147722143" MODIFIED="1539382662202" TEXT="nur wenn es zus&#xe4;tzlichen Platz gibt">
+<node CREATED="1535629385583" ID="ID_147722143" MODIFIED="1541088153986" TEXT="nur wenn es zus&#xe4;tzlichen Platz gibt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39784,7 +39959,8 @@
       sofern das Widget mit entsprechendem Modus eingef&#252;gt wurde
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1535629439847" ID="ID_1925784750" MODIFIED="1535630246025" TEXT="Widget dehnt sich aus, um verf&#xfc;gbaren Platz einzunehmen">
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@@ -39817,7 +39993,7 @@
 <node CREATED="1537577874195" ID="ID_385552696" MODIFIED="1537577883741" TEXT="style-context zum Widget beziehen"/>
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+<node CREATED="1537577914422" ID="ID_1220237808" MODIFIED="1541088154034" TEXT="geht einfach per GTKmm">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39830,7 +40006,8 @@
       context-&gt;add_class(&quot;ohMy&quot;);
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="idea"/>
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@@ -39909,7 +40086,7 @@
 <node CREATED="1535633447375" ID="ID_1390203707" LINK="https://developer.gnome.org/gtkmm/3.22/classGtk_1_1Widget.html#ad65bedf64acfd0401abbe489312fba8e" MODIFIED="1535633492092" TEXT="Widget *  Gtk::Widget::get_ancestor(GType widget_type)"/>
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535633147295" ID="ID_14373153" MODIFIED="1539382662466" TEXT="Konzept ist mir nicht klar">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1535633147295" ID="ID_14373153" MODIFIED="1541088154092" TEXT="Konzept ist mir nicht klar">
 <richcontent TYPE="NOTE"><html>
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@@ -39925,7 +40102,8 @@
       oder ist es eine Vererbungs-Hierarchie, wie sie f&#252;r das CSS-Styling ben&#246;tigt wird?
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
 </node>
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+<node CREATED="1477523714526" ID="ID_654535915" MODIFIED="1541088154114" TEXT="Application verwenden">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -39970,7 +40148,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <arrowlink COLOR="#627292" DESTINATION="ID_185528211" ENDARROW="Default" ENDINCLINATION="58;-164;" ID="Arrow_ID_390519319" STARTARROW="None" STARTINCLINATION="135;0;"/>
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+<node CREATED="1495223513438" ID="ID_1178606368" MODIFIED="1541088154146" TEXT="allerdings im activate-Callback">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40040,7 +40219,8 @@
       Alles in ein Framework zwingen. Alternativlos, capisce?
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="ksmiletris"/>
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@@ -40065,7 +40245,7 @@
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+<node CREATED="1533307886653" ID="ID_322984790" MODIFIED="1541088154184" TEXT="wird auch von Gtkmm so erhalten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40078,7 +40258,8 @@
       welche ggfs C++ - Exceptions f&#228;ngt
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1533311444004" ID="ID_1806268533" MODIFIED="1539382662644" TEXT="notwendig weil....">
+<node CREATED="1533311444004" ID="ID_1806268533" MODIFIED="1541088154201" TEXT="notwendig weil....">
 <richcontent TYPE="NOTE"><html>
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@@ -40110,11 +40291,12 @@
       <i>Nur</i>&#160;das ist der Grund. Es <i>geht gar nicht</i>&#160;um die Event-Loop
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#949fb4" DESTINATION="ID_1806268533" ENDARROW="Default" ENDINCLINATION="-1845;-608;" ID="Arrow_ID_1146394851" SOURCE="ID_1211339520" STARTARROW="None" STARTINCLINATION="-474;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node COLOR="#435e98" CREATED="1533309280940" ID="ID_1482488845" MODIFIED="1539382662652" TEXT="Stand 8/2018 keine anderen Treffer">
+<node COLOR="#435e98" CREATED="1533309280940" ID="ID_1482488845" MODIFIED="1541088154207" TEXT="Stand 8/2018 keine anderen Treffer">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40135,11 +40317,12 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="info"/>
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-<node CREATED="1533309516556" ID="ID_459213298" MODIFIED="1539382662659">
+<node CREATED="1533309516556" ID="ID_459213298" MODIFIED="1541088154213">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -40167,7 +40350,8 @@
       </li>
     </ul>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="messagebox_warning"/>
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 </node>
@@ -40233,7 +40417,7 @@
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-<node CREATED="1533305546669" ID="ID_717378410" MODIFIED="1539382662738" TEXT="gtk_init_check">
+<node CREATED="1533305546669" ID="ID_717378410" MODIFIED="1541088154260" TEXT="gtk_init_check">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40288,7 +40472,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="info"/>
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@@ -40302,7 +40487,7 @@
 <icon BUILTIN="messagebox_warning"/>
 </node>
 </node>
-<node CREATED="1532795594468" ID="ID_681479502" MODIFIED="1539382662806" TEXT="Main::init_gtkmm_internals">
+<node CREATED="1532795594468" ID="ID_681479502" MODIFIED="1541088154286" TEXT="Main::init_gtkmm_internals">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40369,7 +40554,8 @@
       }
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#679cc6" DESTINATION="ID_681479502" ENDARROW="Default" ENDINCLINATION="-182;-16;" ID="Arrow_ID_1451320473" SOURCE="ID_1106606369" STARTARROW="None" STARTINCLINATION="273;0;"/>
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@@ -40429,7 +40615,7 @@
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+<node CREATED="1533308053493" ID="ID_281791270" MODIFIED="1541088154350" TEXT="Gio::Application ruft g_application_run">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40442,9 +40628,10 @@
       aber macht in etwa die gleichen Operationen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1495225050138" ID="ID_1077152710" MODIFIED="1539382662951" TEXT="gtk_main beruht heute auf Gio">
+<node CREATED="1495225050138" ID="ID_1077152710" MODIFIED="1541088154357" TEXT="gtk_main beruht heute auf Gio">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40463,7 +40650,8 @@
       Gtk-Main verwendet inzwischen den gleichen Mechanismus
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -40476,7 +40664,7 @@
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1501848672921" ID="ID_1641235315" MODIFIED="1518487921099" TEXT="SigC++ nicht Threadsafe">
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-<node CREATED="1501848914377" ID="ID_1614034013" MODIFIED="1539382662980" TEXT="Vorsicht: Desktuktoren">
+<node CREATED="1501848914377" ID="ID_1614034013" MODIFIED="1541088154375" TEXT="Vorsicht: Desktuktoren">
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   <head>
     
@@ -40498,7 +40686,8 @@
       Das ist eine subtile Falle.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1501848728354" ID="ID_1420494100" MODIFIED="1518487921099">
@@ -40517,7 +40706,7 @@
 </node>
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 <icon BUILTIN="idea"/>
-<node CREATED="1501848781850" ID="ID_356349390" MODIFIED="1539382662995">
+<node CREATED="1501848781850" ID="ID_356349390" MODIFIED="1541088154387">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -40540,7 +40729,8 @@
       alles das nicht aus dem GUI-Thread heraus geschieht
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1501848836523" ID="ID_649355856" MODIFIED="1518487921099" TEXT="Dispatcher im GUI-Thread erzeugen">
@@ -40596,7 +40786,7 @@
 <node CREATED="1535630710781" ID="ID_194514515" MODIFIED="1535630724687" TEXT="Label-Text als ctor-Param"/>
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-<node CREATED="1535557122205" ID="ID_523553375" MODIFIED="1539382663095" TEXT="resize_toplevel (=true by default)">
+<node CREATED="1535557122205" ID="ID_523553375" MODIFIED="1541088154443" TEXT="resize_toplevel (=true by default)">
 <richcontent TYPE="NOTE"><html>
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@@ -40606,9 +40796,10 @@
       ...ob beim Expand/Collapse das umschlie&#223;ende Widget resized werden soll
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1539382663102" TEXT="expanded (=false by default)">
+<node CREATED="1535631187965" ID="ID_586010488" MODIFIED="1541088154449" TEXT="expanded (=false by default)">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40618,12 +40809,13 @@
       ob eingeklappt oder ausgeklappt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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-<node CREATED="1535631403576" ID="ID_518089172" MODIFIED="1539382663118" TEXT="verh&#xe4;lt sich anders als Frame">
+<node CREATED="1535631403576" ID="ID_518089172" MODIFIED="1541088154461" TEXT="verh&#xe4;lt sich anders als Frame">
 <richcontent TYPE="NOTE"><html>
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@@ -40636,7 +40828,8 @@
       was dazu f&#252;hrt, da&#223; das Kind stets allen verf&#252;gbaren Platz nimmt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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@@ -40775,7 +40968,7 @@
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1385929770" ENDARROW="Default" ENDINCLINATION="1055;0;" ID="Arrow_ID_1314305180" SOURCE="ID_426069181" STARTARROW="None" STARTINCLINATION="1055;0;"/>
 <icon BUILTIN="idea"/>
 </node>
-<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1539382663270" TEXT="custom style properties">
+<node CREATED="1477527104426" ID="ID_334736261" MODIFIED="1541088154590" TEXT="custom style properties">
 <richcontent TYPE="NOTE"><html>
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@@ -40788,7 +40981,8 @@
       Siehe Beschreibung im Beispiel/Tutorial
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_334736261" ENDARROW="Default" ENDINCLINATION="228;-492;" ID="Arrow_ID_84377619" SOURCE="ID_111059124" STARTARROW="None" STARTINCLINATION="930;-42;"/>
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@@ -40844,7 +41038,7 @@
 <icon BUILTIN="yes"/>
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-<node CREATED="1476468292805" ID="ID_1075320324" MODIFIED="1539382663386" TEXT="partially covered widgets">
+<node CREATED="1476468292805" ID="ID_1075320324" MODIFIED="1541088154684" TEXT="partially covered widgets">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40854,9 +41048,10 @@
       ....how does the event dispatching deal with partially covered widgets
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1476468292805" ID="ID_1670607748" MODIFIED="1539382663393" TEXT="tabbing / focus order">
+<node CREATED="1476468292805" ID="ID_1670607748" MODIFIED="1541088154692" TEXT="tabbing / focus order">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40866,7 +41061,8 @@
       ...for embedded widgets
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -40899,7 +41095,7 @@
 <node CREATED="1477788731163" ID="ID_421749777" MODIFIED="1518487921100" TEXT="invoke inherited on_draw()">
 <icon BUILTIN="messagebox_warning"/>
 </node>
-<node CREATED="1477788749289" ID="ID_1466181075" MODIFIED="1539382663454" TEXT="returns false">
+<node CREATED="1477788749289" ID="ID_1466181075" MODIFIED="1541088154747" TEXT="returns false">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40912,7 +41108,8 @@
       i.e. the enclosing parent widget also gets a chance to redraw itself
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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@@ -40933,7 +41130,7 @@
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 <icon BUILTIN="idea"/>
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+<node CREATED="1477841600713" ID="ID_1319450558" LINK="http://stackoverflow.com/questions/40325668/scrollable-drawing-in-gtklayout" MODIFIED="1541088154768" TEXT="Question: can the framework adjust for us">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40943,13 +41140,14 @@
       asked on stackoverflow...
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="help"/>
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-<node CREATED="1477841753180" ID="ID_501431504" MODIFIED="1539382663505" TEXT="max(value) + viewport-size == canvas size">
+<node CREATED="1477841753180" ID="ID_501431504" MODIFIED="1541088154781" TEXT="max(value) + viewport-size == canvas size">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -40962,7 +41160,8 @@
       by printing values from the on_draw() callback
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -41098,7 +41297,7 @@
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 <icon BUILTIN="smiley-angry"/>
 </node>
-<node CREATED="1479424603959" ID="ID_194428894" MODIFIED="1539382663627" TEXT="works on second attempt">
+<node CREATED="1479424603959" ID="ID_194428894" MODIFIED="1541088154846" TEXT="works on second attempt">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41126,7 +41325,8 @@
       Kind-Widgets noch gar nicht festgelegt war (denn das passiert erst beim draw).
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="ksmiletris"/>
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@@ -41164,7 +41364,7 @@
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+<node CREATED="1477784584821" ID="ID_1810760662" LINK="https://developer.gnome.org/gtkmm-tutorial/stable/sec-custom-widgets.html.en" MODIFIED="1541088154884" TEXT="Beispiel im GTKmm-Guide (custom widget)">
 <richcontent TYPE="NOTE"><html>
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@@ -41180,7 +41380,8 @@
       und auch ein Signal f&#252;r Parse-Fehler anschlie&#223;t
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <linktarget COLOR="#a9b4c1" DESTINATION="ID_1810760662" ENDARROW="Default" ENDINCLINATION="1600;-25;" ID="Arrow_ID_1610122569" SOURCE="ID_1164942946" STARTARROW="None" STARTINCLINATION="-840;95;"/>
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@@ -41207,7 +41408,7 @@
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-<node CREATED="1504220061178" ID="ID_474843943" MODIFIED="1539382663714" TEXT="&quot;Gravity&quot; beachten">
+<node CREATED="1504220061178" ID="ID_474843943" MODIFIED="1541088154906" TEXT="&quot;Gravity&quot; beachten">
 <richcontent TYPE="NOTE"><html>
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@@ -41225,7 +41426,8 @@
       Beachte: der Text-Cursor (Marker &quot;insert&quot;) hat right gravity
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41300,7 +41502,7 @@
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-<node CREATED="1534512387109" ID="ID_173562614" MODIFIED="1539382663869" TEXT="Adds docking capability to its child widget">
+<node CREATED="1534512387109" ID="ID_173562614" MODIFIED="1541088154969" TEXT="Adds docking capability to its child widget">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41322,7 +41524,8 @@
       The grip is implemented as a GdlDockItemGrip
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -41403,7 +41606,7 @@
     </p>
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 </html></richcontent>
-<node CREATED="1512179063250" ID="ID_933791979" MODIFIED="1539382663951" TEXT="w&#xe4;hrend der Instantiierung....">
+<node CREATED="1512179063250" ID="ID_933791979" MODIFIED="1541088155013" TEXT="w&#xe4;hrend der Instantiierung....">
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@@ -41413,9 +41616,10 @@
       kann eines der Templates im Zyklus vorr&#252;bergehend als &quot;incomplete&quot; gelten.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
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-<node CREATED="1512179134400" ID="ID_1738202679" MODIFIED="1539382663964" TEXT="....kann die Metafunktion scheitern">
+<node CREATED="1512179134400" ID="ID_1738202679" MODIFIED="1541088155020" TEXT="....kann die Metafunktion scheitern">
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@@ -41437,7 +41641,8 @@
       Konsequenz: man w&#228;hlt dann z.B. eine subtil falsche Spezialisierung.
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
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@@ -41463,7 +41668,7 @@
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 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1525191859371" ID="ID_1136158199" MODIFIED="1539382664003" TEXT="tritt auf in statischem init-Kontext">
+<node CREATED="1525191859371" ID="ID_1136158199" MODIFIED="1541088155044" TEXT="tritt auf in statischem init-Kontext">
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@@ -41491,13 +41696,14 @@
       selber aus einem statischen Initialisierungs-Kontext heraus erfolgt.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 <icon BUILTIN="info"/>
 </node>
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-<node CREATED="1525192237928" ID="ID_1523643615" MODIFIED="1539382664026" TEXT="Demo-Beispiel: g++ --std=gnu++14 blei.cpp -o blei">
+<node CREATED="1525192237928" ID="ID_1523643615" MODIFIED="1541088155062" TEXT="Demo-Beispiel: g++ --std=gnu++14 blei.cpp -o blei">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41693,7 +41899,8 @@
       &#160;&#160;}
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -41935,7 +42142,7 @@
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+<node CREATED="1491099088362" ID="ID_1507484869" MODIFIED="1541088155100" TEXT="Template-Parameter in Klassennamen">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -41960,9 +42167,10 @@
       Query&lt;RES&gt;::resolveBy
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
-<node CREATED="1491099311253" ID="ID_307124479" MODIFIED="1539382664088">
+<node CREATED="1491099311253" ID="ID_307124479" MODIFIED="1541088155107">
 <richcontent TYPE="NODE"><html>
   <head>
     
@@ -41997,14 +42205,15 @@
       sonst kommt Doxygen durcheinander
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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-<node CREATED="1491098427785" ID="ID_719835617" MODIFIED="1539382664115" TEXT="Beispiel: alle Unit-Tests">
+<node CREATED="1491098427785" ID="ID_719835617" MODIFIED="1541088155125" TEXT="Beispiel: alle Unit-Tests">
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   <head>
     
@@ -42026,7 +42235,8 @@
       wird hier kein Link erzeugt
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
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@@ -42042,7 +42252,7 @@
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-<node CREATED="1504201192870" ID="ID_823572488" MODIFIED="1539382664164" TEXT="Dokument-Gr&#xf6;&#xdf;e anscheinend egal">
+<node CREATED="1504201192870" ID="ID_823572488" MODIFIED="1541088155156" TEXT="Dokument-Gr&#xf6;&#xdf;e anscheinend egal">
 <richcontent TYPE="NOTE"><html>
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@@ -42058,7 +42268,8 @@
       Die Icon-Gr&#246;&#223;en ergeben sich aus den Boxes auf 'plate'
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -42073,7 +42284,7 @@
 </node>
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+<node CREATED="1437693693617" ID="ID_955932218" LINK="https://wiki.debian.org/Sound" MODIFIED="1541088155178" TEXT="siehe die Debian-&#xdc;bersichtsseite">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42083,7 +42294,8 @@
       ...im Besonderen die guten Diagramme f&#252;r Pulse, ALSA und Jack
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   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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@@ -42208,7 +42420,7 @@
   </body>
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+<node CREATED="1439593646645" ID="ID_917747701" MODIFIED="1541088155292">
 <richcontent TYPE="NODE"><html>
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@@ -42231,10 +42443,11 @@
       &quot;-Wl,-rpath-link=target/modules&quot;
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
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-<node CREATED="1439176912636" ID="ID_584884488" MODIFIED="1539382664551" TEXT="failed tests">
+<node CREATED="1439176912636" ID="ID_584884488" MODIFIED="1541088155299" TEXT="failed tests">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -42244,14 +42457,15 @@
       laufen wieder alle
     </p>
   </body>
-</html></richcontent>
+</html>
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 <node CREATED="1522025982759" ID="ID_1830638050" MODIFIED="1522025987194" TEXT="reproduzierbar....">
-<node CREATED="1522025990246" ID="ID_261366619" MODIFIED="1539382665435" TEXT="Auf mehreren Terminals x-mal starten">
+<node CREATED="1522025990246" ID="ID_261366619" MODIFIED="1541088155954" TEXT="Auf mehreren Terminals x-mal starten">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -43269,11 +43511,12 @@
       for I in `seq 1 50`; do target/test-suite CallQueue_test; done
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 </node>
 <node CREATED="1522026027993" ID="ID_25191931" MODIFIED="1522026034036" TEXT="Anhaltspunkte">
-<node CREATED="1522026034720" ID="ID_584589060" MODIFIED="1539382665450" TEXT="erstmals beobachtet unter starker System-Last">
+<node CREATED="1522026034720" ID="ID_584589060" MODIFIED="1541088155964" TEXT="erstmals beobachtet unter starker System-Last">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -43289,7 +43532,8 @@
       und eine Doxygen-Seite im Browser geladen
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node COLOR="#990000" CREATED="1521963972811" ID="ID_1942164320" MODIFIED="1522029864550" TEXT="hab ich da was mit dem ThreadWrapper kaputt gemacht?">
 <icon BUILTIN="stop-sign"/>
@@ -43310,7 +43554,7 @@
 <node CREATED="1522029908986" ID="ID_1350487644" MODIFIED="1522030029028" TEXT="Jupp. Dat warsz">
 <icon BUILTIN="idea"/>
 <node CREATED="1522029922592" ID="ID_301766693" MODIFIED="1522030021122" TEXT="Barriere eingebaut"/>
-<node CREATED="1522029928983" ID="ID_761637509" MODIFIED="1539382665514" TEXT="ist auch sinnvoll vom Testdesgin her">
+<node CREATED="1522029928983" ID="ID_761637509" MODIFIED="1541088155999" TEXT="ist auch sinnvoll vom Testdesgin her">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -43320,7 +43564,8 @@
       weil sich die Threads gegenseitig ihre Counter inkrementieren.
     </p>
   </body>
-</html></richcontent>
+</html>
+</richcontent>
 </node>
 <node CREATED="1522029979544" ID="ID_1820534569" MODIFIED="1522030021122" TEXT="Stre&#xdf;test wiederholt, sogar mit 500 Thrads"/>
 <node COLOR="#338800" CREATED="1522029995205" ID="ID_556688250" MODIFIED="1522030021122" TEXT="jetzt reproduzierbar alles sauber">

From 320539344b2e05eb407b71af6067dbbaa40c71f6 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 1 Nov 2018 20:44:31 +0100
Subject: [PATCH 169/178] Timeline: make the injected timeline basically
 visible

---
 src/gui/timeline/timeline-controller.cpp | 4 +---
 src/gui/timeline/timeline-widget.cpp     | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index bd18fc694..5403f6b6c 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -90,9 +90,7 @@ namespace timeline {
                                                  {
                                                    layoutManager.installRootTrack (head, body); 
                                                  }}}
-    {
-      UNIMPLEMENTED ("how to make the controller operative...");
-    }
+    { }
   
   
   TimelineController::~TimelineController()
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 1c8b62dd1..6ae5c7e63 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -72,7 +72,7 @@ namespace timeline {
     , layout_{new TimelineLayout{*this}}
     , control_{new TimelineController{identity, trackID, nexus, *layout_}}
     {
-      UNIMPLEMENTED ("build the timeline UI");
+      show_all();
     }
   
   TimelineWidget::~TimelineWidget() { }

From 8ab6c54b9d771c3a72443ce088882e30090a9b0c Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Mon, 5 Nov 2018 04:56:01 +0100
Subject: [PATCH 170/178] DummySessionConnection: switch the dummy-ID on each
 use

...otherwise we'll get several seemingly identical Timeline tabs in the UI,
since this fake function just sends an INS for each newly injected Timeline,
and there is no deduplication in the UI (we assume that in a real session
and timeline-IDs will be unique)
---
 src/gui/dialog/test-control.hpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/gui/dialog/test-control.hpp b/src/gui/dialog/test-control.hpp
index d17f6b857..6934bf789 100644
--- a/src/gui/dialog/test-control.hpp
+++ b/src/gui/dialog/test-control.hpp
@@ -290,10 +290,10 @@ namespace dialog {
           Gtk::Button mut_1_;
           
           string
-          getDummyID()
+          pickDummyID()
             {
               string dummyID = sanitise (dummy_.get_text());
-              dummy_.set_text (dummyID);
+              dummy_.set_text (string{_Fmt{"d%s%02d"} % lib::test::randStr(2) % (1 + rand() % 99)});
               return dummyID;
             }
           
@@ -310,8 +310,8 @@ namespace dialog {
               
               dummy_.set_tooltip_markup (_("<i>dummy ID value</i>\n"
                                            "used to build names in the generated content"));
-              dummy_.set_text (string{_Fmt{"d%s%02d"} % lib::test::randStr(2) % (1 + rand() % 99)});
               dummy_.set_max_width_chars(12);
+              pickDummyID();
               
               part_1_.pack_start (seq_1_, Gtk::PACK_SHRINK);
               part_1_.pack_start (seq_2_, Gtk::PACK_SHRINK);
@@ -328,9 +328,9 @@ namespace dialog {
               
               // define the action triggers...
               seq_1_.signal_clicked().connect(
-                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_1, getDummyID())); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_1, pickDummyID())); });
               seq_2_.signal_clicked().connect(
-                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_2, getDummyID())); });
+                          [&]{ bus.act (model::commandMessage (proc::cmd::test_fake_injectSequence_2, pickDummyID())); });
               
               mut_1_.signal_clicked().connect(
                           [&]{ cerr << "gelldaschaugst..." <<endl; });

From 20451c958a23c550df12ff245d0e3036f1756d93 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 6 Nov 2018 01:01:00 +0100
Subject: [PATCH 171/178] Timeline: add preliminary track-head display

just some labels, so that we can see the added content
TODO: unsolved problem: how to pass the track name
---
 src/gui/timeline/track-body.cpp        |  2 +-
 src/gui/timeline/track-body.hpp        |  5 ++++-
 src/gui/timeline/track-head-widget.cpp |  8 +++++++-
 src/gui/timeline/track-head-widget.hpp |  7 ++++++-
 src/gui/timeline/track-presenter.hpp   | 12 ++++++------
 wiki/thinkPad.ichthyo.mm               | 27 ++++++++++++++++++++++++--
 6 files changed, 49 insertions(+), 12 deletions(-)

diff --git a/src/gui/timeline/track-body.cpp b/src/gui/timeline/track-body.cpp
index f953432bc..9412dbe93 100644
--- a/src/gui/timeline/track-body.cpp
+++ b/src/gui/timeline/track-body.cpp
@@ -64,7 +64,7 @@ namespace timeline {
   
   
   
-  TrackBody::TrackBody()
+  TrackBody::TrackBody (ID identity)
     : overviewHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , contentHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , subTracks_{}
diff --git a/src/gui/timeline/track-body.hpp b/src/gui/timeline/track-body.hpp
index 0abcdf4e5..3cb59e26a 100644
--- a/src/gui/timeline/track-body.hpp
+++ b/src/gui/timeline/track-body.hpp
@@ -41,6 +41,7 @@
 #define GUI_TIMELINE_TRACK_BODY_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/ctrl/bus-term.hpp"
 
 //#include "lib/util.hpp"
 
@@ -52,6 +53,8 @@
 namespace gui  {
 namespace timeline {
   
+  using ID = ctrl::BusTerm::ID;
+  
   
   /**
    * Helper to organise and draw the space allocated for a fork of sub-tracks.
@@ -75,7 +78,7 @@ namespace timeline {
       SubTracks subTracks_;
       
     public:
-      TrackBody ();
+      TrackBody (ID identity);
      ~TrackBody();
       
       uint calcHeight();
diff --git a/src/gui/timeline/track-head-widget.cpp b/src/gui/timeline/track-head-widget.cpp
index 518ac9dc4..506c62410 100644
--- a/src/gui/timeline/track-head-widget.cpp
+++ b/src/gui/timeline/track-head-widget.cpp
@@ -62,9 +62,15 @@ namespace timeline {
   
   
   
-  TrackHeadWidget::TrackHeadWidget ()
+  TrackHeadWidget::TrackHeadWidget (ID identity)
     : Gtk::Grid{}
+    , nameTODO_{identity.getSym()}
+    , treeTODO_{"X"}
     {
+      this->attach (nameTODO_, 0,0, 2,1);
+      this->attach (treeTODO_, 0,1, 1,1);
+      
+      this->show_all();
     }
   
   
diff --git a/src/gui/timeline/track-head-widget.hpp b/src/gui/timeline/track-head-widget.hpp
index cb448bf51..2bf611cba 100644
--- a/src/gui/timeline/track-head-widget.hpp
+++ b/src/gui/timeline/track-head-widget.hpp
@@ -46,6 +46,7 @@
 #define GUI_TIMELINE_TRACK_HEAD_WIDGET_H
 
 #include "gui/gtk-base.hpp"
+#include "gui/ctrl/bus-term.hpp"
 
 //#include "lib/util.hpp"
 
@@ -57,6 +58,7 @@
 namespace gui  {
 namespace timeline {
   
+  using ID = ctrl::BusTerm::ID;
   
   /**
    * Header pane control area corresponding to a Track with nested child Tracks.
@@ -68,8 +70,11 @@ namespace timeline {
   class TrackHeadWidget
     : public Gtk::Grid
     {
+      Gtk::Label nameTODO_;
+      Gtk::Label treeTODO_;
+      
     public:
-      TrackHeadWidget ();
+      TrackHeadWidget (ID identity);
      ~TrackHeadWidget();
       
       /** Integrate the control area for a nested sub track fork. */
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index a2a2244ee..926b88f98 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -80,9 +80,9 @@ namespace timeline {
       TrackBody       body;
       
       template<class FUN>
-      DisplayFrame (FUN anchorDisplay)
-        : head{}
-        , body{}
+      DisplayFrame (ID id, FUN anchorDisplay)
+        : head{id}
+        , body{id}
         {
           anchorDisplay (head, body);
         }
@@ -121,9 +121,9 @@ namespace timeline {
        * @param nexus a way to connect this Controller to the UI-Bus.
        */
       template<class FUN>
-      TrackPresenter (ID identity, ctrl::BusTerm& nexus, FUN anchorDisplay)
-        : Controller{identity, nexus}
-        , display_{anchorDisplay}
+      TrackPresenter (ID id, ctrl::BusTerm& nexus, FUN anchorDisplay)
+        : Controller{id, nexus}
+        , display_{id, anchorDisplay}
         , subFork_{}
         , markers_{}
         , clips_{}
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 564be6475..4505370ec 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -18490,7 +18490,13 @@
 <arrowlink COLOR="#919fc6" DESTINATION="ID_165150753" ENDARROW="Default" ENDINCLINATION="-902;329;" ID="Arrow_ID_651613049" STARTARROW="None" STARTINCLINATION="823;93;"/>
 <icon BUILTIN="info"/>
 <node COLOR="#435e98" CREATED="1540639547294" ID="ID_133813709" MODIFIED="1540639561155" TEXT="TimelineID"/>
-<node COLOR="#435e98" CREATED="1540639550757" ID="ID_521896867" MODIFIED="1540639560108" TEXT="Root-TrackID"/>
+<node COLOR="#435e98" CREATED="1540639550757" ID="ID_521896867" MODIFIED="1540639560108" TEXT="Root-TrackID">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1541462330990" ID="ID_1246009618" MODIFIED="1541462349597" TEXT="TODO: eigentlich redundant">
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1541462351699" ID="ID_1571413865" MODIFIED="1541462364285" TEXT="sie ist immer &quot;fork&quot;, da es ein Attribut ist"/>
+<node CREATED="1541462368025" ID="ID_66547064" MODIFIED="1541462383522" TEXT="der Entry-ID-Typ ist GenNode"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_391329400" MODIFIED="1538940840604" TEXT="TimelineController">
@@ -19236,7 +19242,7 @@
 </node>
 </node>
 <node CREATED="1540683900716" ID="ID_212914080" MODIFIED="1540684245714" TEXT="1.Quadrant == Controls"/>
-<node CREATED="1540683916490" ID="ID_191999039" MODIFIED="1540684245714" TEXT="3.Quadrand : leer (Fork)"/>
+<node CREATED="1540683916490" ID="ID_191999039" MODIFIED="1541388389927" TEXT="3.Quadrant : leer (Fork)"/>
 <node CREATED="1540683829267" ID="ID_828415712" MODIFIED="1540684245714" TEXT="in 4.Quadrant kommt">
 <node CREATED="1540683866753" ID="ID_616355214" MODIFIED="1540684245714" TEXT="entweder content control"/>
 <node CREATED="1540683879103" ID="ID_96481889" MODIFIED="1540684245714" TEXT="oder ein nested HeaderPane"/>
@@ -40834,6 +40840,23 @@
 </node>
 </node>
 </node>
+<node CREATED="1541455966429" ID="ID_973601831" MODIFIED="1541455977463">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Gtk::<b>Grid</b>
+    </p>
+  </body>
+</html>
+</richcontent>
+<node COLOR="#435e98" CREATED="1541455995128" ID="ID_275278278" MODIFIED="1541456013927" TEXT="(ersetzt Gtk::Table @deprecated)">
+<font NAME="SansSerif" SIZE="10"/>
+</node>
+<node CREATED="1541456025225" ID="ID_1914314588" MODIFIED="1541456041128" TEXT="expand und Fill wie bei Gtk::Box"/>
+</node>
 </node>
 <node CREATED="1538583396203" ID="ID_243616989" MODIFIED="1538584118865" TEXT="TextView">
 <linktarget COLOR="#3251a9" DESTINATION="ID_243616989" ENDARROW="Default" ENDINCLINATION="-2060;-1360;" ID="Arrow_ID_794678010" SOURCE="ID_1836686899" STARTARROW="None" STARTINCLINATION="-3506;-148;"/>

From 83394a6f0156008dd4a29432b6b1a10a96481167 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 9 Nov 2018 20:19:45 +0100
Subject: [PATCH 172/178] GenNode: investigate Problem with non-unique
 attribute IDs

this is not a problem, strictly sepaking, locally.
But it becomes a problem once the GUI uses those attribute IDs
as Element-IDs for tangible UI entities, which need to be uniquely
addressable via the UI-Bus.

An obvious solution is to inject randomness into the Attribute ID hash
---
 src/lib/diff/gen-node.hpp |  28 ++++++-
 src/lib/diff/record.hpp   |  13 ++-
 wiki/thinkPad.ichthyo.mm  | 168 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 193 insertions(+), 16 deletions(-)

diff --git a/src/lib/diff/gen-node.hpp b/src/lib/diff/gen-node.hpp
index 41606287f..300770c72 100644
--- a/src/lib/diff/gen-node.hpp
+++ b/src/lib/diff/gen-node.hpp
@@ -52,6 +52,16 @@
  ** addressable by-name and an (ordered) collection of elements treated
  ** as children within the scope of the given record.
  ** 
+ ** ## The GenNode ID
+ ** 
+ ** Each GenNode holds an ID tag, allowing to establish _identical_ and _distinct_
+ ** elements within a scope. This ID is based on lib::idi::BareEntryID, thereby
+ ** providing a human readable symbolic part, and a hash value. By default, these
+ ** GenNode IDs are fabricated such as to hold a non-reproducible, random hash
+ ** value -- however, there are construction flavours allowing to pass in an
+ ** pre-existing distinct Entry-ID.
+ ** 
+ ** 
  ** # Requirements
  ** 
  ** GenNode elements are to be used in the diff detection and implementation.
@@ -66,7 +76,7 @@
  **   typed context, either based on some kind of embedded type tag, or
  **   alternatively by visitation and matching
  ** - finally, the handling of changes prompts us to support installation
- **   of a specifically typed <i>change handling closure</i>.
+ **   of a specifically typed _change handling closure_.
  ** 
  ** ## monadic nature?
  ** 
@@ -223,6 +233,10 @@ namespace diff{
                                 idi::getTypeHash<X>())
             { }
           
+          ID (string const& symbolicID, HashVal seed)
+            : idi::BareEntryID (symbolicID, seed)
+            { }
+          
         public:
           explicit
           ID (GenNode const& node)
@@ -433,7 +447,15 @@ namespace diff{
             }
         };
       
-    
+      template<typename X>
+      static GenNode
+      forAttribute (string const& key, X&& payload)
+        {
+          return GenNode{ID(key, std::rand())   // NOTE: random hash seed
+                        ,DataCap(forward<X> (payload))};
+        }
+      
+      
     protected:
       /** @internal for dedicated builder subclasses */
       GenNode (ID&& id, DataCap&& d)
@@ -845,7 +867,7 @@ namespace diff{
   inline GenNode
   Rec::buildAttribute (string const& key, X&& payload)
   {
-    return GenNode(key, std::forward<X>(payload));
+    return GenNode::forAttribute (key, forward<X>(payload));
   }
   
   
diff --git a/src/lib/diff/record.hpp b/src/lib/diff/record.hpp
index 0e2f8ce03..35e21e3bb 100644
--- a/src/lib/diff/record.hpp
+++ b/src/lib/diff/record.hpp
@@ -25,17 +25,22 @@
  ** Special collection to represent object-like data.
  ** To be used in a context where introspection, open, extensible definitions
  ** and loose coupling of data representation matters. Typically, structures
- ** defined in terms of Record elements are linked to the actual \em core
+ ** defined in terms of Record elements are linked to the _actual core_
  ** representation of the same entities relying on [diff messages](\ref diff-language.hpp).
  ** Record is one of the supported flavours within the DataCap of GenNode elements,
  ** which in turn serve as the standard handle to refer to other elements, entities,
  ** attributes or references within the "backbone" of the Lumiera GUI.
  ** 
+ ** A Record holds
+ ** - (optionally) a type-ID string
+ ** - a collection of _named attributes_ (key-value data)
+ ** - a list of _enclosed children_ (contents within the "scope" of this Record)
+ ** 
  ** ## design decisions
  ** The Record type is shaped from its intended use: It serves to symbolically represent
- ** _objects_ in the "external tree description". Here, "objects" means objects _for real_,
- ** i.e. with types, fields and an enclosed scope. But \em external means that we do not work
- ** on these objects right here, we only represent them, for later referral, _symbolically_.
+ ** *objects* in the "external tree description". Here, "objects" means objects _for real_,
+ ** i.e. with types, fields and an enclosed scope. Yet the term *external* means that we do not
+ ** work on these objects right here, we only represent them, for later referral, _symbolically_.
  ** 
  ** \par rationale
  ** The underlying theme and motivation of this design is negative: we do not want
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4505370ec..7ce8628d3 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -6671,11 +6671,11 @@
 <node CREATED="1487034180712" ID="ID_1371598611" MODIFIED="1518487921063" TEXT="und jedes genau wei&#xdf;, was die andern k&#xf6;nnen"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1504393149140" FOLDED="true" HGAP="38" ID="ID_48107354" MODIFIED="1538942531699" TEXT="Addressierung" VSHIFT="55">
+<node BACKGROUND_COLOR="#fefc4e" COLOR="#351d75" CREATED="1504393149140" FOLDED="true" HGAP="38" ID="ID_48107354" MODIFIED="1541547323971" TEXT="Addressierung" VSHIFT="55">
 <arrowlink COLOR="#4f5d91" DESTINATION="ID_974158229" ENDARROW="Default" ENDINCLINATION="383;-2505;" ID="Arrow_ID_1832380552" STARTARROW="None" STARTINCLINATION="-597;127;"/>
 <font BOLD="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="pencil"/>
-<node CREATED="1504393160466" ID="ID_450547493" MODIFIED="1518487921063" TEXT="globales ID-Schema">
+<node CREATED="1504393160466" ID="ID_450547493" MODIFIED="1541547317746" TEXT="globales Addre&#xdf;-Schema">
 <node CREATED="1504393168946" ID="ID_390425361" MODIFIED="1518487921063" TEXT="Model-Typen"/>
 <node CREATED="1504393177712" ID="ID_1686403667" MODIFIED="1518487921063" TEXT="View-Deskriptor">
 <node CREATED="1504393184608" ID="ID_792210197" MODIFIED="1518487921063" TEXT="Strategy"/>
@@ -6703,7 +6703,9 @@
 <node CREATED="1519356887367" ID="ID_1139603062" MODIFIED="1519356897033" TEXT="wie findet man den Ort einer Komponente?"/>
 <node CREATED="1519356901933" ID="ID_596521684" MODIFIED="1519356913407" TEXT="Verh&#xe4;ltnis ID / Ort">
 <node CREATED="1519356920083" ID="ID_723456910" MODIFIED="1519356926342" TEXT="sind orthogonale Schemata">
-<node CREATED="1519357047993" ID="ID_1706134856" MODIFIED="1519357059979" TEXT="ID = globale Identit&#xe4;t"/>
+<node CREATED="1519357047993" ID="ID_1706134856" MODIFIED="1541547248389" TEXT="ID = globale Identit&#xe4;t">
+<arrowlink COLOR="#6b83a8" DESTINATION="ID_1585676322" ENDARROW="Default" ENDINCLINATION="738;0;" ID="Arrow_ID_174361092" STARTARROW="None" STARTINCLINATION="1067;-74;"/>
+</node>
 <node CREATED="1519357060599" ID="ID_975802429" MODIFIED="1519357070810" TEXT="Ort = Topologie + Typ">
 <node CREATED="1519357081868" ID="ID_1484266304" MODIFIED="1519357090975" TEXT="Ortsnamen sind generisch"/>
 <node CREATED="1519357091795" ID="ID_68008128" MODIFIED="1519357096374" TEXT="sie werden lokal verstanden"/>
@@ -20098,7 +20100,7 @@
 <node CREATED="1533400281627" ID="ID_1248361340" MODIFIED="1533400375591" TEXT="geht noch nicht --  logging-Strategy fehlt">
 <icon BUILTIN="stop-sign"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400377118" ID="ID_1072134705" MODIFIED="1539388435770" TEXT="#211 handling pattern for dispatch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400377118" ID="ID_1072134705" MODIFIED="1541547696433" TEXT="#211 handling pattern for dispatch">
 <arrowlink COLOR="#ca91c2" DESTINATION="ID_1192893155" ENDARROW="Default" ENDINCLINATION="1415;0;" ID="Arrow_ID_207842771" STARTARROW="None" STARTINCLINATION="2581;0;"/>
 <icon BUILTIN="hourglass"/>
 </node>
@@ -20979,6 +20981,10 @@
 </node>
 </node>
 </node>
+<node CREATED="1541547600640" ID="ID_787025622" MODIFIED="1541547663157" TEXT="Element-IDs m&#xfc;ssen eindeutig sein">
+<arrowlink COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="49;-155;" ID="Arrow_ID_1571993328" STARTARROW="None" STARTINCLINATION="-11;173;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 </node>
@@ -21033,6 +21039,128 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="info"/>
 </node>
+<node CREATED="1541545653978" ID="ID_1534432315" MODIFIED="1541545660929" TEXT="UI-Element - Identit&#xe4;t">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541545674669" ID="ID_1585676322" MODIFIED="1541547248389" TEXT="UI-Elemente sind global eindeutig">
+<arrowlink COLOR="#7894b4" DESTINATION="ID_189279804" ENDARROW="Default" ENDINCLINATION="272;-358;" ID="Arrow_ID_540125984" STARTARROW="None" STARTINCLINATION="-618;10;"/>
+<linktarget COLOR="#6b83a8" DESTINATION="ID_1585676322" ENDARROW="Default" ENDINCLINATION="738;0;" ID="Arrow_ID_174361092" SOURCE="ID_1706134856" STARTARROW="None" STARTINCLINATION="1067;-74;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1541545696185" ID="ID_1907010009" MODIFIED="1541545798109" TEXT="Grund: UI-Bus - Routing">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1541545933006" ID="ID_1850412206" MODIFIED="1541547731516" TEXT="t&#xfc;ckisches Problem">
+<linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="49;-155;" ID="Arrow_ID_1571993328" SOURCE="ID_787025622" STARTARROW="None" STARTINCLINATION="-11;173;"/>
+<linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="369;179;" ID="Arrow_ID_1229280605" SOURCE="ID_659707505" STARTARROW="None" STARTINCLINATION="586;-203;"/>
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1541545944079" ID="ID_1737663580" MODIFIED="1541545963000" TEXT="ein Duplikat ersetzt stillschweigend die Registrierung"/>
+<node CREATED="1541545963822" ID="ID_1562348206" MODIFIED="1541546016778" TEXT="Identit&#xe4;t beruht auf EntryID (Hash)"/>
+<node CREATED="1541545975779" ID="ID_1748214927" MODIFIED="1541546024401" TEXT="diese(r) wird aber systematisch gebildet"/>
+<node CREATED="1541546204541" ID="ID_1625379453" MODIFIED="1541546208976" TEXT="speziell...">
+<node CREATED="1541546209896" ID="ID_1049660229" MODIFIED="1541546245931" TEXT="Kind: _CHILD_&lt;typ&gt;.&lt;cnt&gt;">
+<node CREATED="1541546489419" ID="ID_282481336" MODIFIED="1541546548022" TEXT="automatisch global eindeutig">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      weil wir einen Mechanismus haben, die &lt;cnt&gt;-Dekoration pro Typ global hochzuz&#228;hlen (treadsafe)
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+<node CREATED="1541546556994" ID="ID_35993355" MODIFIED="1541546573135" TEXT="hash-seed: der &lt;typ&gt;-Hash"/>
+</node>
+<node CREATED="1541546415736" ID="ID_1483102981" MODIFIED="1541546432862" TEXT="Attribut: key">
+<node CREATED="1541546579096" ID="ID_728290559" MODIFIED="1541546602798">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Problem: key nur <i>innerhalb</i>&#160;des Objektes eindeutig
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1541547820403" ID="ID_1229228521" MODIFIED="1541775004416" TEXT="L&#xf6;sung: Hash-Chaining">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1541547837646" ID="ID_508395323" MODIFIED="1541547854627" TEXT="&#xe4;hnlich wie im Merkle-Tree">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1541547855766" ID="ID_1691211097" MODIFIED="1541547867017" TEXT="Hash des Vaters als seed">
+<node CREATED="1541552824556" ID="ID_42859602" MODIFIED="1541552831542" TEXT="geht nicht">
+<icon BUILTIN="stop-sign"/>
+</node>
+<node CREATED="1541552832731" ID="ID_346770424" MODIFIED="1541552877349" TEXT="bricht die Subsidiarit&#xe4;t">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...denn dann m&#252;&#223;te das Attribut
+    </p>
+    <p>
+      von dem Container (GenNode) wissen, der es zwei Ebenen h&#246;her enth&#228;lt und umschlie&#223;t
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1541774981285" ID="ID_1038144488" MODIFIED="1541774996472" TEXT="ist letzten Endes auch blo&#xdf; random()"/>
+</node>
+</node>
+<node CREATED="1541775187418" ID="ID_1058458763" MODIFIED="1541789739897" TEXT="Frage: Reproduzierbarkeit irrelevant?">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...es kommt (vielleicht) &#252;berhaupt nicht darauf an,
+    </p>
+    <p>
+      da&#223; der Hash einer Attribut-ID <i>reproduzierbar</i>&#160;ist (auf Basis der symbilschen ID).
+    </p>
+    <p>
+      Der Hash kann genausogut eine Zufallszahl sein
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="help"/>
+<node CREATED="1541775381760" ID="ID_681940327" MODIFIED="1541775392922" TEXT="denn: get sucht per Symbol"/>
+<node CREATED="1541775428125" ID="ID_1569956089" MODIFIED="1541775485774" TEXT="und: einige Attribute haben notwendig eine extern definierte ID">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...n&#228;mlich diejenigen, die <i>selber </i>Modell-Elemente sind.
+    </p>
+    <p>
+      Und genau diese speziellen Objekt-Attribute sind der Anla&#223;,
+    </p>
+    <p>
+      sich &#252;ber dieses Problem Gedanken zu machen
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+</node>
+</node>
+</node>
+</node>
 <node CREATED="1523021670034" ID="ID_1102842396" MODIFIED="1523021676897" TEXT="Einstiegspunkte">
 <icon BUILTIN="idea"/>
 <node CREATED="1523021679960" ID="ID_1386792927" MODIFIED="1523021704154">
@@ -21253,7 +21381,7 @@
 <node CREATED="1448070559466" ID="ID_182430638" MODIFIED="1518487921085" TEXT="Controller"/>
 </node>
 <node CREATED="1448070583679" HGAP="69" ID="ID_1248152908" MODIFIED="1538871387818" TEXT="Protokoll" VSHIFT="-1">
-<node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1535638754133" TEXT="Verhaltensweisen">
+<node CREATED="1448078263344" FOLDED="true" ID="ID_1136748666" MODIFIED="1541546653282" TEXT="Verhaltensweisen">
 <cloud COLOR="#e0d6ba"/>
 <icon BUILTIN="info"/>
 <node CREATED="1448078268223" ID="ID_1027574047" MODIFIED="1518487921085" TEXT="Lebenszyklus">
@@ -21414,7 +21542,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1448658633478" FOLDED="true" HGAP="99" ID="ID_314439240" MODIFIED="1538871380938" TEXT="Design" VSHIFT="13">
+<node CREATED="1448658633478" FOLDED="true" HGAP="99" ID="ID_314439240" MODIFIED="1541547787225" TEXT="Design" VSHIFT="13">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1448658692023" ID="ID_339186676" MODIFIED="1518487921085">
 <richcontent TYPE="NODE"><html>
@@ -21528,6 +21656,22 @@
 </node>
 </node>
 </node>
+<node CREATED="1541546692289" ID="ID_189279804" MODIFIED="1541546864673">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      <b>Identit&#228;t</b>&#160;== Bus-ID
+    </p>
+  </body>
+</html>
+</richcontent>
+<linktarget COLOR="#7894b4" DESTINATION="ID_189279804" ENDARROW="Default" ENDINCLINATION="272;-358;" ID="Arrow_ID_540125984" SOURCE="ID_1585676322" STARTARROW="None" STARTINCLINATION="-618;10;"/>
+<node CREATED="1541546715849" ID="ID_503690063" MODIFIED="1541546722489" TEXT="sollte global eindeutig sein"/>
+<node CREATED="1541546733765" ID="ID_1010323480" MODIFIED="1541546741208" TEXT="wird per Diff &#xfc;bermittelt"/>
+</node>
 <node CREATED="1448658696638" ID="ID_1235910089" MODIFIED="1518487921086" TEXT="slots">
 <node CREATED="1451177440022" ID="ID_1603816152" MODIFIED="1518487921086" TEXT="expand">
 <icon BUILTIN="button_ok"/>
@@ -21615,7 +21759,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1535639028984" FOLDED="true" ID="ID_316446199" MODIFIED="1538871369730" TEXT="hilfs-Abstraktionen">
+<node CREATED="1535639028984" FOLDED="true" ID="ID_316446199" MODIFIED="1541545385363" TEXT="hilfs-Abstraktionen">
 <linktarget COLOR="#709eaf" DESTINATION="ID_316446199" ENDARROW="Default" ENDINCLINATION="-354;-490;" ID="Arrow_ID_1105268233" SOURCE="ID_447101734" STARTARROW="None" STARTINCLINATION="-3385;0;"/>
 <node CREATED="1535639151330" ID="ID_301022990" MODIFIED="1535639159958" TEXT="mix-in">
 <icon BUILTIN="yes"/>
@@ -39273,7 +39417,7 @@
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node CREATED="1539270417847" ID="ID_1555798999" MODIFIED="1539388406968" TEXT="korrekte Diff-Struktur">
+<node CREATED="1539270417847" ID="ID_1555798999" MODIFIED="1541547682934" TEXT="korrekte Diff-Struktur">
 <linktarget COLOR="#cbada9" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="1069;-129;" ID="Arrow_ID_46239762" SOURCE="ID_1136748343" STARTARROW="None" STARTINCLINATION="-474;40;"/>
 <linktarget COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_971172326" SOURCE="ID_1387553695" STARTARROW="None" STARTINCLINATION="-1999;120;"/>
 <linktarget COLOR="#d47366" DESTINATION="ID_1555798999" ENDARROW="Default" ENDINCLINATION="590;-127;" ID="Arrow_ID_308349501" SOURCE="ID_1435731309" STARTARROW="None" STARTINCLINATION="915;0;"/>
@@ -39304,6 +39448,12 @@
 </node>
 </node>
 </node>
+<node CREATED="1541547600640" HGAP="79" ID="ID_659707505" MODIFIED="1541547731516" TEXT="Element-IDs m&#xfc;ssen eindeutig sein" VSHIFT="10">
+<arrowlink COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="369;179;" ID="Arrow_ID_1229280605" STARTARROW="None" STARTINCLINATION="586;-203;"/>
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1541547743885" ID="ID_1112550435" MODIFIED="1541547750312" TEXT="wegen UI-Bus-Routing"/>
+<node CREATED="1541547751020" ID="ID_566590492" MODIFIED="1541547764950" TEXT="Aber: Attribute werden lokal erzeugt"/>
+</node>
 </node>
 <node CREATED="1539270417847" ID="ID_946219609" MODIFIED="1539388465978" TEXT="Reaktion auf Diff-Fehler">
 <linktarget COLOR="#d47366" DESTINATION="ID_946219609" ENDARROW="Default" ENDINCLINATION="713;-263;" ID="Arrow_ID_1085344706" SOURCE="ID_19523487" STARTARROW="Default" STARTINCLINATION="-1999;120;"/>
@@ -39319,7 +39469,7 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="yes"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400707072" ID="ID_1192893155" MODIFIED="1539388435770" TEXT="#211 handling pattern for dispatch">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533400707072" ID="ID_1192893155" MODIFIED="1541547696433" TEXT="#211 handling pattern for dispatch">
 <linktarget COLOR="#ca91c2" DESTINATION="ID_1192893155" ENDARROW="Default" ENDINCLINATION="1415;0;" ID="Arrow_ID_207842771" SOURCE="ID_1072134705" STARTARROW="None" STARTINCLINATION="2581;0;"/>
 <icon BUILTIN="hourglass"/>
 </node>

From 1bbe903202fdc1ba1e2232d42ea0dd47ab7d5d69 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 9 Nov 2018 22:30:35 +0100
Subject: [PATCH 173/178] GenNode: revert -- better not handle this problem on
 ETD level

...rather extend the "object builder" DSL notation to allow passing in a given EntryID literally.
Rationale is, we should handle the problem of unique IDs on the level of the domain model.
If we attempt to "fix" this within GenNode, the price would be to make the ETD creation stateful
---
 src/lib/diff/gen-node.hpp                  | 25 ++++---
 src/lib/diff/record.hpp                    |  5 +-
 tests/library/diff/gen-node-basic-test.cpp |  9 +++
 wiki/thinkPad.ichthyo.mm                   | 86 +++++++++++++++++++++-
 4 files changed, 114 insertions(+), 11 deletions(-)

diff --git a/src/lib/diff/gen-node.hpp b/src/lib/diff/gen-node.hpp
index 300770c72..1e8a122c7 100644
--- a/src/lib/diff/gen-node.hpp
+++ b/src/lib/diff/gen-node.hpp
@@ -233,8 +233,8 @@ namespace diff{
                                 idi::getTypeHash<X>())
             { }
           
-          ID (string const& symbolicID, HashVal seed)
-            : idi::BareEntryID (symbolicID, seed)
+          ID (idi::BareEntryID&& rawD)
+            : idi::BareEntryID{move (rawD)}
             { }
           
         public:
@@ -447,12 +447,12 @@ namespace diff{
             }
         };
       
+      /** fabricate a GenNode with the literally given ID */
       template<typename X>
       static GenNode
-      forAttribute (string const& key, X&& payload)
+      asAttribute (idi::BareEntryID && rawID, X&& payload)
         {
-          return GenNode{ID(key, std::rand())   // NOTE: random hash seed
-                        ,DataCap(forward<X> (payload))};
+          return GenNode{ID{move (rawID)}, DataCap{forward<X> (payload)}};
         }
       
       
@@ -794,14 +794,21 @@ namespace diff{
   inline GenNode
   MakeRec::genNode()
   {
-    return GenNode(std::move(record_));
+    return GenNode{std::move(record_)};
   }
   
   template<>
   inline GenNode
-  MakeRec::genNode(string const& symbolicID)
+  MakeRec::genNode (idi::BareEntryID rawID)
   {
-    return GenNode(symbolicID, std::move(record_));
+    return GenNode::asAttribute (std::move(rawID), std::move(record_));
+  }
+  
+  template<>
+  inline GenNode
+  MakeRec::genNode (string const& symbolicID)
+  {
+    return GenNode{symbolicID, std::move(record_)};
   }
   
   
@@ -867,7 +874,7 @@ namespace diff{
   inline GenNode
   Rec::buildAttribute (string const& key, X&& payload)
   {
-    return GenNode::forAttribute (key, forward<X>(payload));
+    return GenNode{key, forward<X>(payload)};
   }
   
   
diff --git a/src/lib/diff/record.hpp b/src/lib/diff/record.hpp
index 35e21e3bb..f00ae35a8 100644
--- a/src/lib/diff/record.hpp
+++ b/src/lib/diff/record.hpp
@@ -112,7 +112,9 @@ namespace lib {
   template<class BA>
   class PlantingHandle;
   
-  
+namespace idi {
+  class BareEntryID;
+}
 namespace diff{
   
   namespace error = lumiera::error;
@@ -562,6 +564,7 @@ namespace diff{
        */
       
       VAL genNode();
+      VAL genNode(idi::BareEntryID rawID);
       VAL genNode(string const& symbolicID);
       
       template<typename X, typename...ARGS>
diff --git a/tests/library/diff/gen-node-basic-test.cpp b/tests/library/diff/gen-node-basic-test.cpp
index 2b73c72f8..5967d656b 100644
--- a/tests/library/diff/gen-node-basic-test.cpp
+++ b/tests/library/diff/gen-node-basic-test.cpp
@@ -211,6 +211,15 @@ namespace test{
           // but while o4 was based on o2,
           // adding all the additional contents didn't mutate o2
           CHECK (isnil(o2.data.get<Rec>()));
+          
+          // special case: can create an (Attribute) GenNode with specifically crafted ID
+          idi::EntryID<uint8_t> veryspecialID{"quasi niente"};
+          auto o5 = MakeRec().genNode(veryspecialID);
+          CHECK (o5 != MakeRec().genNode());
+          CHECK (o5 != MakeRec().genNode("quasi niente"));
+          CHECK (o5 == MakeRec().genNode(veryspecialID));
+          CHECK (name(o5) == "quasi_niente");             // Note: EntryID sanitised the string
+          CHECK (o5.idi == veryspecialID);
         }
       
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 7ce8628d3..d2f2ca438 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -21056,7 +21056,12 @@
 <node CREATED="1541545944079" ID="ID_1737663580" MODIFIED="1541545963000" TEXT="ein Duplikat ersetzt stillschweigend die Registrierung"/>
 <node CREATED="1541545963822" ID="ID_1562348206" MODIFIED="1541546016778" TEXT="Identit&#xe4;t beruht auf EntryID (Hash)"/>
 <node CREATED="1541545975779" ID="ID_1748214927" MODIFIED="1541546024401" TEXT="diese(r) wird aber systematisch gebildet"/>
-<node CREATED="1541546204541" ID="ID_1625379453" MODIFIED="1541546208976" TEXT="speziell...">
+<node CREATED="1541790406153" ID="ID_966273732" MODIFIED="1541790408357" TEXT="relevant in Record&lt;GenNode&gt;">
+<icon BUILTIN="broken-line"/>
+</node>
+<node CREATED="1541546204541" FOLDED="true" HGAP="30" ID="ID_1625379453" MODIFIED="1541790892949" TEXT="speziell..." VSHIFT="3">
+<arrowlink COLOR="#677dde" DESTINATION="ID_1099820897" ENDARROW="Default" ENDINCLINATION="-64;0;" ID="Arrow_ID_791650338" STARTARROW="None" STARTINCLINATION="18;42;"/>
+<icon BUILTIN="info"/>
 <node CREATED="1541546209896" ID="ID_1049660229" MODIFIED="1541546245931" TEXT="Kind: _CHILD_&lt;typ&gt;.&lt;cnt&gt;">
 <node CREATED="1541546489419" ID="ID_282481336" MODIFIED="1541546548022" TEXT="automatisch global eindeutig">
 <richcontent TYPE="NOTE"><html>
@@ -21156,6 +21161,85 @@
 </html>
 </richcontent>
 </node>
+<node CREATED="1541790399905" ID="ID_552609912" MODIFIED="1541790483789">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      aber: zuf&#228;llige ID macht Objekt-builder <i>stateful</i>
+    </p>
+  </body>
+</html>
+</richcontent>
+<arrowlink COLOR="#f63025" DESTINATION="ID_791385927" ENDARROW="Default" ENDINCLINATION="142;6;" ID="Arrow_ID_1321696116" STARTARROW="None" STARTINCLINATION="7;68;"/>
+<icon BUILTIN="stop-sign"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541790451266" ID="ID_791385927" MODIFIED="1541790474148" TEXT="Problem auf dieser Ebene nicht l&#xf6;sbar">
+<linktarget COLOR="#f63025" DESTINATION="ID_791385927" ENDARROW="Default" ENDINCLINATION="142;6;" ID="Arrow_ID_1321696116" SOURCE="ID_552609912" STARTARROW="None" STARTINCLINATION="7;68;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541790539737" HGAP="19" ID="ID_620633727" MODIFIED="1541790562981" TEXT="explizit zur handhaben" VSHIFT="9">
+<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
+<icon BUILTIN="yes"/>
+<node COLOR="#435e98" CREATED="1541790564379" ID="ID_1099820897" MODIFIED="1541790869503" TEXT="das Problem l&#xe4;&#xdf;t sich nicht implizit l&#xf6;sen">
+<linktarget COLOR="#677dde" DESTINATION="ID_1099820897" ENDARROW="Default" ENDINCLINATION="-64;0;" ID="Arrow_ID_791650338" SOURCE="ID_1625379453" STARTARROW="None" STARTINCLINATION="18;42;"/>
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
+</node>
+<node CREATED="1541790588022" ID="ID_1242220321" MODIFIED="1541790627427" TEXT="Fazit: auf dem ETD-level ignorieren"/>
+<node CREATED="1541790631410" ID="ID_1544767080" MODIFIED="1541790641506" TEXT="geh&#xf6;rt in den Domain-level"/>
+<node CREATED="1541790656124" ID="ID_279205741" MODIFIED="1541791424072" TEXT="Domain-IDs eindeutig">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      das hei&#223;t.
+    </p>
+    <p>
+      die Konstruktion des Domain-Modelles ist daf&#252;r zust&#228;ndig
+    </p>
+    <p>
+      f&#252;r global eindeutige IDs an den relevanten Stellen zu sorgen
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="yes"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541790717726" ID="ID_1884395735" MODIFIED="1541790738652" TEXT="explizites Attribut-Binding">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...dem man eine EntryID geben kann
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node COLOR="#338800" CREATED="1541790780342" ID="ID_683694576" MODIFIED="1541798900109" TEXT="DSL-Syntax">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#435e98" CREATED="1541790752619" ID="ID_826540621" MODIFIED="1541798905126" TEXT="in ETD-Objekt-Notation">
+<node CREATED="1541791692837" ID="ID_1036110919" MODIFIED="1541791708256" TEXT="set() geht ohnehin schon mit GenNode-Argument">
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1541791710149" ID="ID_1280894882" MODIFIED="1541798914030" TEXT="MakeRec().genNode(ID) erm&#xf6;glichen!">
+<arrowlink COLOR="#71cbc9" DESTINATION="ID_80733797" ENDARROW="Default" ENDINCLINATION="49;1;" ID="Arrow_ID_237980791" STARTARROW="None" STARTINCLINATION="22;30;"/>
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+<node COLOR="#435e98" CREATED="1541790797595" ID="ID_80733797" MODIFIED="1541798902638" TEXT="f&#xfc;r SET / INS Diff-Verben">
+<linktarget COLOR="#71cbc9" DESTINATION="ID_80733797" ENDARROW="Default" ENDINCLINATION="49;1;" ID="Arrow_ID_237980791" SOURCE="ID_1280894882" STARTARROW="None" STARTINCLINATION="22;30;"/>
+</node>
 </node>
 </node>
 </node>

From 7cc68fadea60cb995129ee9ecbb1dd4e4635f92f Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 9 Nov 2018 22:55:08 +0100
Subject: [PATCH 174/178] GenNode / Timeline: allow to mutate attribute objects
 with explicitly given ID

so this seems to be the better approach for dealing with this insidious problem.
In some cases -- as here most prominently with the root track within the timeline --
we have to care within the domain model to prepare unique ids even for sub objects
treated as attributes. In the actual case, without that special attention,
all timelines would hold onto an attribute "fork" with the same ID, based
on the type of the nested object plus the string "fork". Thus all root track
representations in the GUI would end up listening to the same ID on the UI-Bus...
---
 src/gui/timeline/timeline-controller.cpp        | 7 ++++---
 src/lib/diff/tree-mutator-attribute-binding.hpp | 9 +++++++++
 src/lib/diff/tree-mutator.hpp                   | 7 ++++++-
 wiki/thinkPad.ichthyo.mm                        | 6 +++---
 4 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index 5403f6b6c..8a55e588e 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -138,6 +138,7 @@ namespace timeline {
   TimelineController::buildMutator (TreeMutator::Handle buffer)
   {
     using PMarker = unique_ptr<MarkerWidget>;
+    auto rootForkID = ID{*fork_};
     
     buffer.create (
       TreeMutator::build()
@@ -160,13 +161,13 @@ namespace timeline {
                     target->buildMutator (buff);               //  - delegate to child to build nested TreeMutator
                     return true;
                   }))
-        .mutateAttrib(ATTR_fork, [&](TreeMutator::Handle buff)
-            {                                                  // »Attribute Mutator« : how to enter an object field as nested scope
+        .mutateAttrib(rootForkID, [&](TreeMutator::Handle buff)
+            {                                                  // »Attribute Mutator« : how to enter the track-fork-object field as nested scope
               REQUIRE (fork_);
               fork_->buildMutator(buff);
             })
         .change(ATTR_name, [&](string val)
-            {                                                  // »Attribute Setter« : how to assign a new value to some object field
+            {                                                  // »Attribute Setter« : how to assign a new value to the name field (object member)
               name_ = val;
             }));
   }
diff --git a/src/lib/diff/tree-mutator-attribute-binding.hpp b/src/lib/diff/tree-mutator-attribute-binding.hpp
index 69221a1d2..398aa5963 100644
--- a/src/lib/diff/tree-mutator-attribute-binding.hpp
+++ b/src/lib/diff/tree-mutator-attribute-binding.hpp
@@ -359,6 +359,15 @@ namespace diff{
       return chainedBuilder<MutationOperation<PAR,CLO>> (key, mutatorBuilderClosure);
     }
     
+    /** Entry point for DSL builder; variation to handle an attribute-object with given ID */
+    template<class PAR>
+    template<typename CLO>
+    inline auto
+    Builder<PAR>::mutateAttrib (idi::BareEntryID const& rawID, CLO mutatorBuilderClosure)
+    {
+      return chainedBuilder<MutationOperation<PAR,CLO>> (rawID, mutatorBuilderClosure);
+    }
+    
     
     
   }//(END)Mutator-Builder decorator components...
diff --git a/src/lib/diff/tree-mutator.hpp b/src/lib/diff/tree-mutator.hpp
index 4e11d98c2..07a12fc57 100644
--- a/src/lib/diff/tree-mutator.hpp
+++ b/src/lib/diff/tree-mutator.hpp
@@ -373,7 +373,12 @@ namespace diff{
         template<typename CLO>
         auto mutateAttrib (Symbol attributeID, CLO mutatorBuilderClosure);
         
-        ///////////////////////////////////////TODO define variant taking a GenNode::ID ??
+        /**
+         * @param rawID the explicitly given ID of an attribute object,
+         *              used literally to match the attribute in question
+         */
+        template<typename CLO>
+        auto mutateAttrib (idi::BareEntryID const& rawID, CLO mutatorBuilderClosure);
         
         
         /** set up a binding to a structure of "child objects",
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d2f2ca438..3f7be1a3c 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -21049,7 +21049,7 @@
 <node CREATED="1541545696185" ID="ID_1907010009" MODIFIED="1541545798109" TEXT="Grund: UI-Bus - Routing">
 <icon BUILTIN="info"/>
 </node>
-<node CREATED="1541545933006" ID="ID_1850412206" MODIFIED="1541547731516" TEXT="t&#xfc;ckisches Problem">
+<node COLOR="#435e98" CREATED="1541545933006" ID="ID_1850412206" MODIFIED="1541800215407" TEXT="t&#xfc;ckisches Problem">
 <linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="49;-155;" ID="Arrow_ID_1571993328" SOURCE="ID_787025622" STARTARROW="None" STARTINCLINATION="-11;173;"/>
 <linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="369;179;" ID="Arrow_ID_1229280605" SOURCE="ID_659707505" STARTARROW="None" STARTINCLINATION="586;-203;"/>
 <icon BUILTIN="messagebox_warning"/>
@@ -21212,7 +21212,7 @@
 </html>
 </richcontent>
 <icon BUILTIN="yes"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541790717726" ID="ID_1884395735" MODIFIED="1541790738652" TEXT="explizites Attribut-Binding">
+<node COLOR="#338800" CREATED="1541790717726" ID="ID_1884395735" MODIFIED="1541800179010" TEXT="explizites Attribut-Binding">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -21224,7 +21224,7 @@
   </body>
 </html>
 </richcontent>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1541790780342" ID="ID_683694576" MODIFIED="1541798900109" TEXT="DSL-Syntax">
 <icon BUILTIN="button_ok"/>

From 8432420726ca26038ab62941916253c22d264691 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 9 Nov 2018 23:09:16 +0100
Subject: [PATCH 175/178] Library: fix unwanted implicit conversion

...it should have been explicit from start, since there is no point
in converting an EntryID into a plain flat string without further notice

this became evident, when the compiler picked the string overload on

MakeRec().genNode(specialID)

...which is in compliance to the rules, since string is a direct match,
while BareEntryID would be an (slicing) upcast. However, obviously we
want the BareEntryID here, and not an implicit string conversion,
thereby discarding the special hash value hidden within the ID
---
 src/lib/idi/entry-id.hpp                | 2 +-
 tests/core/proc/asset/basicpipetest.cpp | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/idi/entry-id.hpp b/src/lib/idi/entry-id.hpp
index 8a860a9c5..5da10074f 100644
--- a/src/lib/idi/entry-id.hpp
+++ b/src/lib/idi/entry-id.hpp
@@ -265,7 +265,7 @@ namespace idi {
           return static_cast<EntryID const&> (bID);
         }
       
-      
+      explicit
       operator string()  const;
       
       friend bool operator<  (EntryID const& i1, EntryID const& i2) { return i1.getSym()  < i2.getSym(); }
diff --git a/tests/core/proc/asset/basicpipetest.cpp b/tests/core/proc/asset/basicpipetest.cpp
index 0947d2f6e..f0bf2126b 100644
--- a/tests/core/proc/asset/basicpipetest.cpp
+++ b/tests/core/proc/asset/basicpipetest.cpp
@@ -96,7 +96,7 @@ namespace test  {
           Asset::Ident idi = thePipe->ident;
           CHECK (idi.org == "lumi");
           CHECK (contains (idi.name, thePipe->getPipeID()));
-          CHECK (contains (idi.name, thePipe->getStreamID()));
+          CHECK (contains (idi.name, string{thePipe->getStreamID()}));
           
           Category cat{idi.category};
           Category refcat{STRUCT,"pipes"};
@@ -146,7 +146,7 @@ namespace test  {
           pipe2 = asset::Struct::retrieve (Query<Pipe>{"pipe(default)"});
           CHECK (pipe2 == pipe1);
           
-          string sID = pipe1->getStreamID(); // sort of a "default stream type"
+          auto sID = string{pipe1->getStreamID()}; // sort of a "default stream type"
           PPipe pipe3 = Pipe::query ("stream("+sID+")");
           CHECK (pipe3);
           CHECK (pipe3->getStreamID() == StreamType::ID{sID});

From a4c37ed99c131bf27a32fad0d919f28176fb7811 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 10 Nov 2018 01:01:59 +0100
Subject: [PATCH 176/178] Library: allow for an explicitly random EntryID

same pattern as the existing EntryID, i.e. a human readable symbol plus a hash
but the hash is just random, instead of deriving it from the symbol text.

Use case is when we explicitly need a distinct identity, even when the
human readable symbolic name is the same. Actual example: the fork root in the timeline
---
 src/gui/timeline/timeline-controller.cpp |  2 +-
 src/gui/timeline/track-body.cpp          |  2 +-
 src/gui/timeline/track-body.hpp          |  2 +-
 src/gui/timeline/track-head-widget.cpp   |  6 ++--
 src/gui/timeline/track-head-widget.hpp   |  2 +-
 src/gui/timeline/track-presenter.cpp     | 10 ++++---
 src/gui/timeline/track-presenter.hpp     | 10 ++++---
 src/lib/idi/entry-id.hpp                 | 38 ++++++++++++++++++++++--
 wiki/renderengine.html                   | 14 ++++-----
 wiki/thinkPad.ichthyo.mm                 | 12 ++++++--
 10 files changed, 71 insertions(+), 27 deletions(-)

diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index 8a55e588e..5634a301c 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -84,7 +84,7 @@ namespace timeline {
   
   TimelineController::TimelineController (ID identity, ID trackID, ctrl::BusTerm& nexus, TimelineLayout& layoutManager)
     : Controller{identity, nexus}
-    , name_{identity.getSym()}         // fallback initialise name from human-readable ID symbol 
+    , name_{identity.getSym()}    // fallback initialise name from human-readable ID symbol 
     , markers_{}
     , fork_{new TrackPresenter{trackID, nexus, [&](TrackHeadWidget& head,TrackBody& body)
                                                  {
diff --git a/src/gui/timeline/track-body.cpp b/src/gui/timeline/track-body.cpp
index 9412dbe93..dca82cb9d 100644
--- a/src/gui/timeline/track-body.cpp
+++ b/src/gui/timeline/track-body.cpp
@@ -64,7 +64,7 @@ namespace timeline {
   
   
   
-  TrackBody::TrackBody (ID identity)
+  TrackBody::TrackBody (cuString trackName)
     : overviewHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , contentHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , subTracks_{}
diff --git a/src/gui/timeline/track-body.hpp b/src/gui/timeline/track-body.hpp
index 3cb59e26a..839006066 100644
--- a/src/gui/timeline/track-body.hpp
+++ b/src/gui/timeline/track-body.hpp
@@ -78,7 +78,7 @@ namespace timeline {
       SubTracks subTracks_;
       
     public:
-      TrackBody (ID identity);
+      TrackBody (cuString trackName);
      ~TrackBody();
       
       uint calcHeight();
diff --git a/src/gui/timeline/track-head-widget.cpp b/src/gui/timeline/track-head-widget.cpp
index 506c62410..da1366bf8 100644
--- a/src/gui/timeline/track-head-widget.cpp
+++ b/src/gui/timeline/track-head-widget.cpp
@@ -62,10 +62,10 @@ namespace timeline {
   
   
   
-  TrackHeadWidget::TrackHeadWidget (ID identity)
+  TrackHeadWidget::TrackHeadWidget (cuString& trackName)
     : Gtk::Grid{}
-    , nameTODO_{identity.getSym()}
-    , treeTODO_{"X"}
+    , nameTODO_{trackName}
+    , treeTODO_{"↳"}
     {
       this->attach (nameTODO_, 0,0, 2,1);
       this->attach (treeTODO_, 0,1, 1,1);
diff --git a/src/gui/timeline/track-head-widget.hpp b/src/gui/timeline/track-head-widget.hpp
index 2bf611cba..f632e83fb 100644
--- a/src/gui/timeline/track-head-widget.hpp
+++ b/src/gui/timeline/track-head-widget.hpp
@@ -74,7 +74,7 @@ namespace timeline {
       Gtk::Label treeTODO_;
       
     public:
-      TrackHeadWidget (ID identity);
+      TrackHeadWidget (cuString& trackName);
      ~TrackHeadWidget();
       
       /** Integrate the control area for a nested sub track fork. */
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index 31a81ad6e..829b460dc 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -66,9 +66,7 @@ namespace timeline {
   
   
   
-  TrackPresenter::~TrackPresenter()
-  {
-  }
+  TrackPresenter::~TrackPresenter() { }
   
   
   
@@ -151,7 +149,11 @@ namespace timeline {
                     if (ID{*target} != subID) return false;
                     target->buildMutator (buff);
                     return true;
-                  })));
+                  }))
+        .change(ATTR_name, [&](string val)
+            {                                                  // »Attribute Setter« : receive a new value for the track name field
+              name_ = val;
+            }));
   }
   
   
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index 926b88f98..6befa66a0 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -80,9 +80,9 @@ namespace timeline {
       TrackBody       body;
       
       template<class FUN>
-      DisplayFrame (ID id, FUN anchorDisplay)
-        : head{id}
-        , body{id}
+      DisplayFrame (cuString& name, FUN anchorDisplay)
+        : head{name}
+        , body{name}
         {
           anchorDisplay (head, body);
         }
@@ -106,6 +106,7 @@ namespace timeline {
   class TrackPresenter
     : public model::Controller
     {
+      string name_;
       DisplayFrame display_;
       
       vector<unique_ptr<TrackPresenter>> subFork_;
@@ -123,7 +124,8 @@ namespace timeline {
       template<class FUN>
       TrackPresenter (ID id, ctrl::BusTerm& nexus, FUN anchorDisplay)
         : Controller{id, nexus}
-        , display_{id, anchorDisplay}
+        , name_{id.getSym()}         // fallback initialise track-name from human-readable ID symbol 
+        , display_{name_, anchorDisplay}
         , subFork_{}
         , markers_{}
         , clips_{}
diff --git a/src/lib/idi/entry-id.hpp b/src/lib/idi/entry-id.hpp
index 5da10074f..a32cf0978 100644
--- a/src/lib/idi/entry-id.hpp
+++ b/src/lib/idi/entry-id.hpp
@@ -32,6 +32,13 @@
  ** @note as of 3/2010 this is an experimental setup and exists somewhat in parallel
  **       to the assets. We're still in the process of finding out what's really required
  **       to keep track of all the various kinds of objects.                 ///////////////////TICKET #739
+ ** @todo as of 11/2018 the basic design seems adequate, but the actual solution looks fishy.
+ **       Even more so, since we now use subclasses of BareEntryID
+ **       - as identity tag within lib::diff::GenNode
+ **       - as identity tag for all [tangible UI elements](\ref gui::model::Tangible)
+ **       There are various quirks and hacks to make all of this happen, and especially
+ **       the hashed-in type information feels gratuitous at places, when all we actually
+ **       need is a distinct identity plus a human readable symbol.
  ** 
  ** @see asset::Asset::Ident
  ** @see entry-id-test.cpp
@@ -101,7 +108,7 @@ namespace idi {
      *        which would require both to yield the same hash values....
      *  @warning there is a weakness in boost::hash for strings of running numbers,
      *        causing collisions already for a small set with less than 100000 entries.
-     *        To ameliorate the problem, we hash in the trailing digits, and
+     *        To mitigate the problem, we hash in the trailing digits, and
      *        spread them by the #KNUTH_MAGIC                                            /////////TICKET #865
      *  @warning this code isn't portable and breaks if sizeof(size_t) < sizeof(void*)
      *  @see HashGenerator_test#verify_Knuth_workaround
@@ -146,11 +153,18 @@ namespace idi {
        * encoded into a hash seed. Thus even the same symbolicID
        * generates differing hash-IDs for different type parameters
        */
-      BareEntryID (string const& symbolID, HashVal seed =0)
+      BareEntryID (string const& symbolID, HashVal seed)
         : symbol_(symbolID)
         , hash_(buildHash (symbol_, seed))
         { }
       
+      /** store the symbol but use a random hash part */
+      explicit
+      BareEntryID (string const& symbolID)
+        : symbol_(symbolID)
+        , hash_{} // random
+        { }
+      
     public:
       /* default copyable and assignable */
       
@@ -281,6 +295,26 @@ namespace idi {
   
   
   
+  /**
+   * Entry-ID with a symbolic tag but just a plain random hash part.
+   * @remarks use this flavour when it is _not relevant_ to tag with
+   *    some type information nor to reproduce the hash value. 
+   */
+  struct RandID
+    : BareEntryID
+    {
+      RandID (string const& symbolID)
+        : BareEntryID{util::sanitise (symbolID)}
+        { }
+      RandID (const char* symbolID)
+        : BareEntryID{util::sanitise (symbolID)}
+        { }
+      RandID (Symbol const& internalSymbol)
+        : BareEntryID{string{internalSymbol}}
+        { }
+    };
+  
+  
   /** try to upcast this BareEntryID to a fully typed EntryID.
    *  Effectively, this is the attempt to reverse a type erasure;
    *  thus the caller needs to know the type information (as provided
diff --git a/wiki/renderengine.html b/wiki/renderengine.html
index 83c8b3293..7a5b7fb2c 100644
--- a/wiki/renderengine.html
+++ b/wiki/renderengine.html
@@ -2025,18 +2025,18 @@ Deliberately there is an limitaion on the flexibility of what can be added to th
 A strong emphaisis is placed on ''Separation of Concerns'' and especially on ''Open Closed'' design. We resist the temptation to build an //universal model.// Rather, we understand our whole unterdaking a ''transformation of metadata'' -- which, as a whole, remains conceptual and is only ever implemented partially  within context. A [[language of diff exchanges|TreeDiffFundamentals]] serves as integrating backbone. It works against a rather symbolic representation of strucutred matters, conceived as an ExternalTreeDescription. In fact, this desctiption is only materialised in parts, if at all.
 </pre>
 </div>
-<div title="DesignGoals" modifier="Ichthyostega" created="200706210557" modified="200805300046" tags="design">
-<pre>This __proc-Layer__ and ~Render-Engine implementation started out as a design-draft by [[Ichthyo|mailto:Ichthyostega@web.de]] in summer 2007. The key idea of this design-draft is to use the [[Builder Pattern|http://en.wikipedia.org/wiki/Builder_pattern]] for the Render Engine, thus separating completely the //building// of the Render Pipeline from //running,// i.e. doing the actual Render. The Nodes in this Pipeline should process Video/Audio and do nothing else. No more decisions, tests and conditional operations when running the Pipeline. Move all of this out into the configuration of the pipeline, which is done by the Builder.
+<div title="DesignGoals" modifier="Ichthyostega" created="200706210557" modified="201811092250" tags="design" changecount="3">
+<pre>This ~Proc-Layer and ~Render-Engine implementation started out as a design-draft by [[Ichthyo|mailto:Ichthyostega@web.de]] in summer 2007. The key idea of this design-draft is to use the [[Builder Pattern|http://en.wikipedia.org/wiki/Builder_pattern]] for the Render Engine, thus separating completely the //building// of the Render Pipeline from //running,// i.e. doing the actual Render. The Nodes in this Pipeline should process Video/Audio and do nothing else. No more decisions, tests and conditional operations when running the Pipeline. Move all of this out into the configuration of the pipeline, which is done by the Builder.
 
 !Why doesn't the current Cinelerra-2 Design succeed?
-The design of Cinelerra-2 basically follows a similar design, but __fails because of two reasons__
-# too much differentiation is put into the class hierarchy instead of configuring Instances differently.&lt;br&gt;This causes overly heavy use of virtual functions and -- in order to ameliorate this -- falling back to hard wired branching
+The design of Cinelerra-2 basically follows a similar design, but [[fails because of two reasons...|https://lumiera.org/project/background/history/CinelerraWoes.html]]
+# too much differentiation is put into the class hierarchy instead of configuring Instances differently.&lt;br/&gt;This causes overly heavy use of virtual functions, intricate implementation dependencies, and -- in order to mitigate this -- falling back to hard wired branching in the end.
 # far too much coupling and back-coupling to the internals of the »EDL«, forcing a overly rigid structure on the latter
 
 !Try to learn from the Problems of the current Cinelerra-2 codebase
-* build up an [[Node Abstraction|ProcNode]] powerful enough to express //all necessary Operations// without the need to recure on the actual object type
+* build up an [[Node Abstraction|ProcNode]] powerful enough to express //all necessary Operations// without the need to recur on the actual object type
 * need to redesign the internals of the Session in a far more open manner. Everything is an [[M-Object|MObjects]] which is [[placed|Placement]] in some manner
-* strive at a StrongSeparation between Session and Render Engine, encapsulate and allways implement against interfaces
+* strive at a StrongSeparation between Session and Render Engine, encapsulate and always implement against interfaces
 
 
 !Design Goals
@@ -2044,7 +2044,7 @@ As always, the main goal is //to cut down complexity// by the usual approach to
 
 To achieve this, here we try to separate ''Configuration'' from ''Processing''. Further, in Configuration we try to separate the ''high level view'' (users view when editing) from the ''low level view'' (the actual configuration effective for the calculations). Finally, we try to factor out and encapsulate ''State'' in order to make State explicit.
 
-The main tool used to implement this separation is the [[Builder Pattern|http://en.wikipedia.org/wiki/Builder_pattern]]. Here especially we move all decisions and parametrization into the BuildProcess. The Nodes in the render pipeline should process Video/Audio and do nothing else. All decisions, tests and conditional operations are factored out of the render process and handled as configuration of the pipeline, which is done by the Builder. The actual color model and number of ports is configured in by a pre-built wiring descriptor. All Nodes are of equal footing with each other, able to be connected freely within the limitations of the necessary input and output. OpenGL and renderfarm support can be configured in as an alternate implementation of some operations together with an alternate signal flow (usable only if the whole Pipeline can be built up to support this changed signal flow), thus factoring out all the complexities of managing the data flow between core and hardware accelerated rendering. We introduce separate control data connections for the [[automation data|Automation]], separating the case of true multi-channel-effects from the case where one node just gets remote controlled by another node (or the case of two nodes using the same automation data).
+The main tool used to implement this separation is the [[Builder Pattern|http://en.wikipedia.org/wiki/Builder_pattern]]. Here especially we move all decisions and parametrization into the BuildProcess. The Nodes in the render pipeline should process Video/Audio and do nothing else. All decisions, tests and conditional operations are factored out of the render process and handled as configuration of the pipeline, which is done by the Builder. The actual colour model and number of ports is configured in by a pre-built wiring descriptor. All Nodes are of equal footing with each other, able to be connected freely within the limitations of the necessary input and output. OpenGL and renderfarm support can be configured in as an alternate implementation of some operations together with an alternate signal flow (usable only if the whole Pipeline can be built up to support this changed signal flow), thus factoring out all the complexities of managing the data flow between core and hardware accelerated rendering. We introduce separate control data connections for the [[automation data|Automation]], separating the case of true multi-channel-effects from the case where one node just gets remote controlled by another node (or the case of two nodes using the same automation data).
 
 Another pertinent theme is to make the basic building blocks simpler, while on the other hand gaining much more flexibility for combining these building blocks. For example we try to unfold any &quot;internal-multi&quot; effects into separate instances (e.g. the possibility of having an arbitrary number of single masks at any point of the pipeline instead of having one special masking facility encompassing multiple sub-masks. Similarly, we treat the Objects in the Session in a more uniform manner and gain the possibility to [[place|Placement]] them in various ways.
 </pre>
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 3f7be1a3c..11713b164 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -17603,7 +17603,7 @@
 <node CREATED="1480639279591" ID="ID_887618627" MODIFIED="1518487921078" TEXT="Timecode"/>
 <node CREATED="1480639276064" ID="ID_1418536459" MODIFIED="1518487921078" TEXT="Fader"/>
 <node CREATED="1480639258169" ID="ID_1876553930" MODIFIED="1518487921078" TEXT="Label">
-<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1541096032389" TEXT="ElementBoxWidget">
+<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1541801476783" TEXT="ElementBoxWidget">
 <linktarget COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_703893400" SOURCE="ID_1437927701" STARTARROW="None" STARTINCLINATION="42;-316;"/>
 <linktarget COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_1199047781" SOURCE="ID_1032237384" STARTARROW="None" STARTINCLINATION="-698;-271;"/>
 <font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@@ -19374,7 +19374,7 @@
 <node CREATED="1538940692545" ID="ID_1827979765" MODIFIED="1538940694085" TEXT="expanded"/>
 </node>
 <node CREATED="1541095848871" ID="ID_1480696061" MODIFIED="1541095854691" TEXT="Anzeige-Modi">
-<node CREATED="1541095855984" ID="ID_1437927701" MODIFIED="1541096004448" TEXT="verwendet ElementBoxWidget">
+<node CREATED="1541095855984" ID="ID_1437927701" MODIFIED="1541801476782" TEXT="verwendet ElementBoxWidget">
 <arrowlink COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_703893400" STARTARROW="None" STARTINCLINATION="42;-316;"/>
 <icon BUILTIN="idea"/>
 </node>
@@ -20984,6 +20984,12 @@
 <node CREATED="1541547600640" ID="ID_787025622" MODIFIED="1541547663157" TEXT="Element-IDs m&#xfc;ssen eindeutig sein">
 <arrowlink COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="49;-155;" ID="Arrow_ID_1571993328" STARTARROW="None" STARTINCLINATION="-11;173;"/>
 <icon BUILTIN="messagebox_warning"/>
+<node CREATED="1541807934354" ID="ID_306409593" MODIFIED="1541807964448" TEXT="jedesmal explizit einen zuf&#xe4;lligen Hash verwenden">
+<icon BUILTIN="yes"/>
+</node>
+<node CREATED="1541807922861" ID="ID_811005250" MODIFIED="1541807960058" TEXT="idi::RandID">
+<icon BUILTIN="forward"/>
+</node>
 </node>
 </node>
 </node>
@@ -21049,7 +21055,7 @@
 <node CREATED="1541545696185" ID="ID_1907010009" MODIFIED="1541545798109" TEXT="Grund: UI-Bus - Routing">
 <icon BUILTIN="info"/>
 </node>
-<node COLOR="#435e98" CREATED="1541545933006" ID="ID_1850412206" MODIFIED="1541800215407" TEXT="t&#xfc;ckisches Problem">
+<node COLOR="#435e98" CREATED="1541545933006" FOLDED="true" ID="ID_1850412206" MODIFIED="1541801398040" TEXT="t&#xfc;ckisches Problem">
 <linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="49;-155;" ID="Arrow_ID_1571993328" SOURCE="ID_787025622" STARTARROW="None" STARTINCLINATION="-11;173;"/>
 <linktarget COLOR="#c9876a" DESTINATION="ID_1850412206" ENDARROW="Default" ENDINCLINATION="369;179;" ID="Arrow_ID_1229280605" SOURCE="ID_659707505" STARTARROW="None" STARTINCLINATION="586;-203;"/>
 <icon BUILTIN="messagebox_warning"/>

From c8dc5a24a8a2fdd7bc580d043d9964fe11a2e3c9 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 10 Nov 2018 02:39:17 +0100
Subject: [PATCH 177/178] DummySessionConnection: extend population diff to
 send distinct root-track

This change demonstrates how to deal properly with possible duplicate entities
with similar symbolic ID: define a RandomID (to guarantee a distinct hash on each instance).
In the actual implementation, this should happen already within the domain model,
not when constructing the diff (obviously of course...)

This change also adds a mutation sequence to inject the actual track name
---
 src/gui/model/tangible.hpp                    |  2 +-
 src/lib/diff/tree-diff-application.hpp        |  2 +-
 src/lib/diff/tree-diff.cpp                    |  2 +-
 src/lib/diff/tree-mutator.hpp                 |  1 +
 .../session/dummy-session-connection.cpp      | 25 ++++++++++++++-----
 wiki/thinkPad.ichthyo.mm                      |  4 +--
 6 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/src/gui/model/tangible.hpp b/src/gui/model/tangible.hpp
index c20601116..f8e06fe99 100644
--- a/src/gui/model/tangible.hpp
+++ b/src/gui/model/tangible.hpp
@@ -235,7 +235,7 @@ namespace model {
       friend constexpr size_t
       treeMutatorSize (const Tangible*)
       {
-        return 256;
+        return 512;
       }
     };
   
diff --git a/src/lib/diff/tree-diff-application.hpp b/src/lib/diff/tree-diff-application.hpp
index e5e275495..336df1888 100644
--- a/src/lib/diff/tree-diff-application.hpp
+++ b/src/lib/diff/tree-diff-application.hpp
@@ -158,7 +158,7 @@ namespace diff{
     public:
       virtual ~ScopeManager();  ///< this is an interface
       
-      virtual TreeMutator::Handle openScope()   =0;
+      virtual TreeMutator::Handle openScope()   =0;      ///< @remark picks up `treeMutatorSize(...)`
       virtual TreeMutator&        closeScope()  =0;
       virtual void                clear()       =0;
       
diff --git a/src/lib/diff/tree-diff.cpp b/src/lib/diff/tree-diff.cpp
index 301767708..8c61b297f 100644
--- a/src/lib/diff/tree-diff.cpp
+++ b/src/lib/diff/tree-diff.cpp
@@ -205,7 +205,7 @@ namespace diff{
   void
   TreeDiffMutatorBinding::mut (GenNode const& n)
   {
-    TreeMutator::Handle buffHandle = scopeManger_->openScope();
+    TreeMutator::Handle buffHandle = scopeManger_->openScope();      // hint: treeMutatorSize(...)
     if (not treeMutator_->mutateChild(n, buffHandle))
       __failMismatch("enter nested scope", n);
     
diff --git a/src/lib/diff/tree-mutator.hpp b/src/lib/diff/tree-mutator.hpp
index 07a12fc57..17ce59b5d 100644
--- a/src/lib/diff/tree-mutator.hpp
+++ b/src/lib/diff/tree-mutator.hpp
@@ -83,6 +83,7 @@
  ** 
  ** @see tree-mutator-test.cpp
  ** @see tree-mutator-binding-test.cpp
+ ** @see [usage for tree diff application](\ref tree-diff-application.hpp)
  ** @see diff-language.hpp
  ** @see DiffDetector
  ** 
diff --git a/src/proc/mobject/session/dummy-session-connection.cpp b/src/proc/mobject/session/dummy-session-connection.cpp
index e9c677785..5913ea8cd 100644
--- a/src/proc/mobject/session/dummy-session-connection.cpp
+++ b/src/proc/mobject/session/dummy-session-connection.cpp
@@ -55,9 +55,11 @@
 #include <string>
 //#include <map>
 
+using lib::diff::MutationMessage;
 using lib::diff::GenNode;
 using lib::diff::MakeRec;
-using lib::diff::MutationMessage;
+using lib::diff::Ref;
+using lib::idi::RandID;
 //using util::cStr;
 using util::_Fmt;
 using std::string;
@@ -77,12 +79,12 @@ namespace session {
   namespace { //Implementation details....
   
     GenNode
-    emptyTimeline (string baseID)
+    emptyTimeline (string baseID, RandID const& forkRootID)
     {
       return MakeRec()
-               .set(string{gui::ATTR_fork}
-                   ,MakeRec()
-                      .type(string{gui::TYPE_Fork})
+               .set(MakeRec()
+                      .type (string{gui::TYPE_Fork})
+                    .genNode(forkRootID)
                    )
              .genNode(baseID);
     }
@@ -106,7 +108,18 @@ namespace session {
   MutationMessage
   DummySessionConnection::fabricateSeq1 (string baseID)
   {
-    return MutationMessage{ ins (emptyTimeline (baseID))
+    const RandID forkRootID{gui::ATTR_fork};
+    const GenNode timeline = emptyTimeline (baseID, forkRootID);
+    const GenNode rootTrackName{string{gui::ATTR_name}, "Track-"+baseID}
+                , FORK_ROOT = MakeRec().genNode(forkRootID)
+                ;
+    
+    return MutationMessage{ ins (timeline)
+                          , mut (timeline)
+                            , mut (FORK_ROOT)
+                              , set (rootTrackName)
+                            , emu (FORK_ROOT)
+                          , emu (timeline)
                           };
   }
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 11713b164..4e321b39e 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31117,7 +31117,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1434128074725" FOLDED="true" HGAP="28" ID="ID_933994138" MODIFIED="1538870799628" TEXT="Diff-System" VSHIFT="1">
+<node CREATED="1434128074725" FOLDED="true" HGAP="28" ID="ID_933994138" MODIFIED="1541811331872" TEXT="Diff-System" VSHIFT="1">
 <font NAME="SansSerif" SIZE="14"/>
 <icon BUILTIN="go"/>
 <node CREATED="1434128278990" ID="ID_106354755" MODIFIED="1518487921094" TEXT="Diff-Darstellung"/>
@@ -32179,7 +32179,7 @@
 </node>
 </node>
 </node>
-<node CREATED="1443733567706" FOLDED="true" HGAP="325" ID="ID_143203937" MODIFIED="1538870668723" TEXT="Diff-Language" VSHIFT="41">
+<node CREATED="1443733567706" FOLDED="true" HGAP="325" ID="ID_143203937" MODIFIED="1541811328497" TEXT="Diff-Language" VSHIFT="41">
 <cloud COLOR="#cfba9d"/>
 <linktarget COLOR="#a9acc1" DESTINATION="ID_143203937" ENDARROW="Default" ENDINCLINATION="115;-2033;" ID="Arrow_ID_136706418" SOURCE="ID_1091994004" STARTARROW="None" STARTINCLINATION="1656;0;"/>
 <font NAME="SansSerif" SIZE="14"/>

From 866d7efe0ac3f7eb569767a173f349da389b6bff Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 10 Nov 2018 02:59:23 +0100
Subject: [PATCH 178/178] Timeline: push the trackname attribute down into the
 widget/display

...in accordance to our general design guideline: we don't duplicate
actual model values within the controllers/presenters, since our widgets
act themselves as view-model
---
 src/gui/timeline/track-body.cpp               |  9 +++++-
 src/gui/timeline/track-body.hpp               |  4 ++-
 src/gui/timeline/track-head-widget.cpp        | 10 +++++--
 src/gui/timeline/track-head-widget.hpp        |  4 ++-
 src/gui/timeline/track-presenter.cpp          |  2 +-
 src/gui/timeline/track-presenter.hpp          | 28 ++++++++++++++-----
 .../session/dummy-session-connection.cpp      |  6 ++--
 wiki/thinkPad.ichthyo.mm                      |  6 ++++
 8 files changed, 53 insertions(+), 16 deletions(-)

diff --git a/src/gui/timeline/track-body.cpp b/src/gui/timeline/track-body.cpp
index dca82cb9d..ac485de3a 100644
--- a/src/gui/timeline/track-body.cpp
+++ b/src/gui/timeline/track-body.cpp
@@ -64,7 +64,7 @@ namespace timeline {
   
   
   
-  TrackBody::TrackBody (cuString trackName)
+  TrackBody::TrackBody()
     : overviewHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , contentHeight_{DEFAULT_OVERVIEW_HEIGHT_px}
     , subTracks_{}
@@ -77,6 +77,13 @@ namespace timeline {
   }
   
   
+  void
+  TrackBody::setTrackName (cuString& trackName)
+  {
+    TODO ("is the track name of any relevance for the TrackBody widget?");
+  }
+  
+  
   /**
    * recursively calculate the height in pixels to display this track,
    * including all nested sub-tracks
diff --git a/src/gui/timeline/track-body.hpp b/src/gui/timeline/track-body.hpp
index 839006066..f9f60401c 100644
--- a/src/gui/timeline/track-body.hpp
+++ b/src/gui/timeline/track-body.hpp
@@ -78,9 +78,11 @@ namespace timeline {
       SubTracks subTracks_;
       
     public:
-      TrackBody (cuString trackName);
+      TrackBody();
      ~TrackBody();
       
+      void setTrackName (cuString&);
+      
       uint calcHeight();
       
     private:/* ===== Internals ===== */
diff --git a/src/gui/timeline/track-head-widget.cpp b/src/gui/timeline/track-head-widget.cpp
index da1366bf8..e4748e996 100644
--- a/src/gui/timeline/track-head-widget.cpp
+++ b/src/gui/timeline/track-head-widget.cpp
@@ -62,9 +62,9 @@ namespace timeline {
   
   
   
-  TrackHeadWidget::TrackHeadWidget (cuString& trackName)
+  TrackHeadWidget::TrackHeadWidget()
     : Gtk::Grid{}
-    , nameTODO_{trackName}
+    , nameTODO_{"?"}
     , treeTODO_{"↳"}
     {
       this->attach (nameTODO_, 0,0, 2,1);
@@ -74,6 +74,12 @@ namespace timeline {
     }
   
   
+  void
+  TrackHeadWidget::setTrackName (cuString& trackName)
+    {
+      nameTODO_.set_label (trackName);
+    }
+  
   /**
    * @remark The Lumiera Timeline model does not rely on a list of tracks, as most conventional
    * video editing software does -- rather, each sequence holds a _fork of nested scopes._
diff --git a/src/gui/timeline/track-head-widget.hpp b/src/gui/timeline/track-head-widget.hpp
index f632e83fb..19d158ca4 100644
--- a/src/gui/timeline/track-head-widget.hpp
+++ b/src/gui/timeline/track-head-widget.hpp
@@ -74,9 +74,11 @@ namespace timeline {
       Gtk::Label treeTODO_;
       
     public:
-      TrackHeadWidget (cuString& trackName);
+      TrackHeadWidget();
      ~TrackHeadWidget();
       
+      void setTrackName (cuString&);
+      
       /** Integrate the control area for a nested sub track fork. */
       void injectSubFork (TrackHeadWidget& subForkHead);
 
diff --git a/src/gui/timeline/track-presenter.cpp b/src/gui/timeline/track-presenter.cpp
index 829b460dc..e84610543 100644
--- a/src/gui/timeline/track-presenter.cpp
+++ b/src/gui/timeline/track-presenter.cpp
@@ -152,7 +152,7 @@ namespace timeline {
                   }))
         .change(ATTR_name, [&](string val)
             {                                                  // »Attribute Setter« : receive a new value for the track name field
-              name_ = val;
+              this->setTrackName (val);
             }));
   }
   
diff --git a/src/gui/timeline/track-presenter.hpp b/src/gui/timeline/track-presenter.hpp
index 6befa66a0..70b4d8c97 100644
--- a/src/gui/timeline/track-presenter.hpp
+++ b/src/gui/timeline/track-presenter.hpp
@@ -80,9 +80,9 @@ namespace timeline {
       TrackBody       body;
       
       template<class FUN>
-      DisplayFrame (cuString& name, FUN anchorDisplay)
-        : head{name}
-        , body{name}
+      DisplayFrame (FUN anchorDisplay)
+        : head{}
+        , body{}
         {
           anchorDisplay (head, body);
         }
@@ -92,6 +92,13 @@ namespace timeline {
           TODO ("cause the managed presentation elements to detach from their parents");
         }
       
+      void
+      setTrackName (cuString& name)
+        {
+          head.setTrackName (name);
+          body.setTrackName (name);  ///////////////////////////////////TICKET #1017 -- TODO 11/18 : not clear yet if TrackBody needs to know its name
+        }
+
       void
       injectSubTrack (TrackHeadWidget& head, TrackBody& body)
         {
@@ -106,7 +113,6 @@ namespace timeline {
   class TrackPresenter
     : public model::Controller
     {
-      string name_;
       DisplayFrame display_;
       
       vector<unique_ptr<TrackPresenter>> subFork_;
@@ -124,12 +130,13 @@ namespace timeline {
       template<class FUN>
       TrackPresenter (ID id, ctrl::BusTerm& nexus, FUN anchorDisplay)
         : Controller{id, nexus}
-        , name_{id.getSym()}         // fallback initialise track-name from human-readable ID symbol 
-        , display_{name_, anchorDisplay}
+        , display_{anchorDisplay}
         , subFork_{}
         , markers_{}
         , clips_{}
-        { }
+        { 
+          setTrackName (id.getSym());  // fallback initialise track-name from human-readable ID symbol 
+        }
       
       
       /** set up a binding to respond to mutation messages via UiBus */
@@ -137,6 +144,13 @@ namespace timeline {
       
       
     private:/* ===== Internals ===== */
+      
+      /** invoked via diff to show a (changed) track name */
+      void
+      setTrackName (string name)
+        {
+          display_.setTrackName (name);
+        }
     };
   
   
diff --git a/src/proc/mobject/session/dummy-session-connection.cpp b/src/proc/mobject/session/dummy-session-connection.cpp
index 5913ea8cd..fcbd37adc 100644
--- a/src/proc/mobject/session/dummy-session-connection.cpp
+++ b/src/proc/mobject/session/dummy-session-connection.cpp
@@ -109,9 +109,9 @@ namespace session {
   DummySessionConnection::fabricateSeq1 (string baseID)
   {
     const RandID forkRootID{gui::ATTR_fork};
-    const GenNode timeline = emptyTimeline (baseID, forkRootID);
-    const GenNode rootTrackName{string{gui::ATTR_name}, "Track-"+baseID}
-                , FORK_ROOT = MakeRec().genNode(forkRootID)
+    const GenNode timeline      = emptyTimeline (baseID, forkRootID)
+                , rootTrackName = GenNode{string{gui::ATTR_name}, "Track-"+baseID}
+                , FORK_ROOT     = MakeRec().genNode(forkRootID)
                 ;
     
     return MutationMessage{ ins (timeline)
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4e321b39e..d1482fd3d 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -19326,6 +19326,12 @@
 <node CREATED="1540953791364" ID="ID_540126417" MODIFIED="1540953808931" TEXT="vertikale Koordinaten zum Platzieren von Content ermitteln"/>
 <node CREATED="1540953642160" ID="ID_1963147841" MODIFIED="1540953662125" TEXT="Hintergrund f&#xfc;r eigenen Bereich zeichnen"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541814972977" HGAP="8" ID="ID_1482433902" MODIFIED="1541814987634" TEXT="offen..." VSHIFT="5">
+<icon BUILTIN="bell"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541814988759" ID="ID_327310802" MODIFIED="1541815003222" TEXT="mu&#xdf; der TrackBody seinen Namen kennen?">
+<icon BUILTIN="help"/>
+</node>
+</node>
 </node>
 </node>
 </node>