From 4887194589cab11b79345697f1822083fae4e24a Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Thu, 19 Jan 2023 23:58:42 +0100
Subject: [PATCH] Timeline: investigate vertical space allocation on nested
 tracks

...seemingly the allocation of grid cells in the `TrackHeadWidget`
is not quite correct yet: even when there are nested sub-tracks,
we always need another row to hold the controls corresponding to
the track itself and the whole scope. And this row is also what
should be adjusted to match the vertical extension of the content
area.

As it turns out, the whole topic how to handle collapsed tracks
was not even considered yet; the calculation of the "track profile"
would need to be reworked to accommodate collapsed tracks, see: #1265
---
 src/stage/timeline/track-head-widget.cpp      |  26 +--
 src/stage/timeline/track-presenter.hpp        |   4 +-
 .../session/dummy-session-connection.cpp      |   8 +-
 wiki/thinkPad.ichthyo.mm                      | 162 ++++++++++++++----
 4 files changed, 155 insertions(+), 45 deletions(-)

diff --git a/src/stage/timeline/track-head-widget.cpp b/src/stage/timeline/track-head-widget.cpp
index d5aa64f48..2e25a6b20 100644
--- a/src/stage/timeline/track-head-widget.cpp
+++ b/src/stage/timeline/track-head-widget.cpp
@@ -185,19 +185,22 @@ cout<<"|+| Head:inc ("<<left<<","<<top<<") h="<<h<<" Δ="<<delta<<" vor:"<<hvor<
    * 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 initially four quadrants, and the 4th quadrant
-   * corresponds to the _content area,_ in case this is a leaf track. Otherwise there would
-   * be nested sub-Tracks, and this lower right grid cell would then hold a TrackHeadWidget
-   * recursively. Additional sub-Tracks are added as additional lines to the grid, while
-   * deeper nested sub-Tracks will be handled by the corresponding nested TrackHeadWidget.
+   * corresponds to the _content area_ of the track itself, and will hold the controls for
+   * the scope, i.e. the track _together with all nested sub-tracks._ Additional sub-Tracks
+   * are added as additional lines to the grid, while deeper nested sub-Tracks will be
+   * handled by the corresponding nested TrackHeadWidget. The column to the left side
+   * will be increased accordingly to display the nested fork structure.
    * @note Child tracks are always appended. When tracks are reordered or deleted,
    *       the whole structure has to be re-built accordingly.
    */
   void
   TrackHeadWidget::attachSubFork (TrackHeadWidget& subForkHead)
   {
-    if (not childCnt_) detachDirectContent();
-    ++childCnt_;           //  left,top
-    this->attach (subForkHead, 1, childCnt_, 1,1);
+    ++childCnt_;                //  left,top
+    Gtk::Grid::attach (subForkHead, 1, 1+childCnt_, 1,1);
+    // expand the structure display column....
+    Gtk::Grid::remove (treeTODO_);   //  width,height
+    Gtk::Grid::attach (treeTODO_,   0,1, 1, 1+childCnt_);
   }
   
   /**
@@ -215,7 +218,9 @@ cout<<"|+| Head:inc ("<<left<<","<<top<<") h="<<h<<" Δ="<<delta<<" vor:"<<hvor<
   {
     --childCnt_;
     Gtk::Grid::remove (subForkHead);
-    if (not childCnt_) attachDirectContent();
+    // reduce the structure display column....
+    Gtk::Grid::remove (treeTODO_);   //  width,height
+    Gtk::Grid::attach (treeTODO_,   0,1, 1, 1+childCnt_);
   }
   
   
@@ -223,12 +228,13 @@ cout<<"|+| Head:inc ("<<left<<","<<top<<") h="<<h<<" Δ="<<delta<<" vor:"<<hvor<
   TrackHeadWidget::clearFork()
   {
     if (not childCnt_) return;
+    Gtk::Grid::remove (treeTODO_);
     while (childCnt_ > 0)
       {
-        this->remove_row (childCnt_);
+        Gtk::Grid::remove_row (childCnt_);
         --childCnt_;
       }
-    attachDirectContent();
+    Gtk::Grid::attach (treeTODO_, 0,1, 1,1);
   }
   
   
diff --git a/src/stage/timeline/track-presenter.hpp b/src/stage/timeline/track-presenter.hpp
index 153fdfc62..cb719dfcb 100644
--- a/src/stage/timeline/track-presenter.hpp
+++ b/src/stage/timeline/track-presenter.hpp
@@ -515,9 +515,11 @@ cout<<"|*| establishExtension(clipH="<<bodyH<<" headH="<<headH<<" max="<<maxVSiz
     uint bodySize = body_.calcHeight();
     if (bodySize > headSize)
 {//////////////////////////////////////////////////////TODO
+ uint hcV =   head_.calcContentHeight();   
       head_.increaseExpansionHeight (bodySize-headSize);
  uint hN =    head_.calcOverallHeight();   
- cout<<"|+| syncBal: head="<<headSize<<" body="<<bodySize<<" Δ="<<bodySize-headSize<<" hN="<<hN<<endl;      
+ uint hcN =   head_.calcContentHeight();   
+ cout<<"|+| syncBal: head="<<headSize<<" body="<<bodySize<<" Δ="<<bodySize-headSize<<" hN="<<hN<<"(c:"<<hcV<<"⟶"<<hcN<<")"<<endl;      
 }//////////////////////////////////////////////////////TODO      
   }
 
diff --git a/src/steam/mobject/session/dummy-session-connection.cpp b/src/steam/mobject/session/dummy-session-connection.cpp
index 4296c35ae..d4ebb83c2 100644
--- a/src/steam/mobject/session/dummy-session-connection.cpp
+++ b/src/steam/mobject/session/dummy-session-connection.cpp
@@ -218,13 +218,13 @@ namespace session {
                             , mut (forkRoot)
                               , ins (rootTrackName)
                               , ins (track1)
-                              , ins (track2)
+/*                            , ins (track2)
                               , ins (timeRuler)
                               , ins (scopeRuler0)
-                              , mut (track1)
+*/                            , mut (track1)
                                 , ins (makeName(track1))
                               , emu (track1)
-                              , mut (track2)
+/*                              , mut (track2)
                                 , ins (makeName(track2))
                                 , ins (track21)
                                 , ins (track22)
@@ -246,7 +246,7 @@ namespace session {
                                   , emu (track222)
                                 , emu (track22)
                               , emu (track2)
-                            , emu (forkRoot)
+*/                          , emu (forkRoot)
                           , emu (timeline)
                           };
   }
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d49ffeb8c..6450b7900 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -25126,7 +25126,7 @@
 <node CREATED="1672787342676" ID="ID_1189311522" MODIFIED="1672787960019" TEXT="aber auch: ZoomWindow selber mu&#xdf; von Geometrie-&#xc4;nderungen erfahren">
 <arrowlink COLOR="#4c7ef4" DESTINATION="ID_973993644" ENDARROW="Default" ENDINCLINATION="-1199;-155;" ID="Arrow_ID_1196387900" STARTARROW="None" STARTINCLINATION="2666;104;"/>
 <linktarget COLOR="#4a449e" DESTINATION="ID_1189311522" ENDARROW="Default" ENDINCLINATION="785;29;" ID="Arrow_ID_1573433988" SOURCE="ID_650213030" STARTARROW="None" STARTINCLINATION="241;10;"/>
-<linktarget COLOR="#4a449e" DESTINATION="ID_1189311522" ENDARROW="Default" ENDINCLINATION="1548;60;" ID="Arrow_ID_751989601" SOURCE="ID_37048779" STARTARROW="None" STARTINCLINATION="1439;57;"/>
+<linktarget COLOR="#4a759a" DESTINATION="ID_1189311522" ENDARROW="Default" ENDINCLINATION="1548;60;" ID="Arrow_ID_751989601" SOURCE="ID_37048779" STARTARROW="None" STARTINCLINATION="1439;57;"/>
 </node>
 </node>
 <node COLOR="#338800" CREATED="1672787636743" ID="ID_1344084462" MODIFIED="1672797005517" TEXT="Flexibilisierung Display-Evaluation">
@@ -25721,7 +25721,7 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1611486765168" ID="ID_62818590" MODIFIED="1611487348314" TEXT="Clip-Positionen und Ausdehnungen integrieren">
 <linktarget COLOR="#de4b7e" DESTINATION="ID_62818590" ENDARROW="Default" ENDINCLINATION="-1193;64;" ID="Arrow_ID_1779091384" SOURCE="ID_392294660" STARTARROW="None" STARTINCLINATION="817;64;"/>
 <icon BUILTIN="flag-yellow"/>
-<node COLOR="#435e98" CREATED="1617470705305" HGAP="40" ID="ID_644438911" MODIFIED="1617470805539" TEXT="Stand: vorl&#xe4;ufige Implementierung" VSHIFT="6">
+<node COLOR="#435e98" CREATED="1617470705305" HGAP="40" ID="ID_644438911" MODIFIED="1674161854370" TEXT="Stand: vorl&#xe4;ufige Implementierung" VSHIFT="6">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -25732,6 +25732,19 @@
     </p>
   </body>
 </html></richcontent>
+<icon BUILTIN="button_cancel"/>
+</node>
+<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1674161820779" ID="ID_1877059709" MODIFIED="1674161920084" TEXT="Stand: ElementBoxWidget als Clip, aber leer">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Ende 2022 habe ich dann doch noch das ElementBoxWidget gebaut. Nun verwenden Clips schon mal dieses, aber die ganze Logik der Clip-Anzeige <i>ist auf sp&#228;ter verschoben...</i>
+    </p>
+  </body>
+</html></richcontent>
 <icon BUILTIN="idea"/>
 </node>
 </node>
@@ -26829,6 +26842,10 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563467424456" ID="ID_1723744174" MODIFIED="1563467445803" TEXT="collapsed/hidden ber&#xfc;cksichtigen">
 <icon BUILTIN="flag-yellow"/>
+<node CREATED="1674160114980" ID="ID_852402445" MODIFIED="1674160219744" TEXT="1/2023 noch nicht ganz klar wie">
+<arrowlink COLOR="#c65e7c" DESTINATION="ID_1440303749" ENDARROW="Default" ENDINCLINATION="-1806;-99;" ID="Arrow_ID_537995229" STARTARROW="None" STARTINCLINATION="-421;38;"/>
+</node>
+<node CREATED="1674160134114" ID="ID_141550042" MODIFIED="1674160141660" TEXT="vermutich bereits beim Aufbau des Profils"/>
 </node>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1563467451739" ID="ID_1414960950" MODIFIED="1575053380683" TEXT="(re)Konstruieren">
 <linktarget COLOR="#d73f41" DESTINATION="ID_1414960950" ENDARROW="Default" ENDINCLINATION="699;-94;" ID="Arrow_ID_1514395934" SOURCE="ID_283854399" STARTARROW="None" STARTINCLINATION="236;12;"/>
@@ -27744,8 +27761,14 @@
 </node>
 </node>
 <node CREATED="1563469593872" HGAP="84" ID="ID_1533093205" MODIFIED="1563469604196" TEXT="sub-Navigation" VSHIFT="1">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1674161525129" ID="ID_1762683235" MODIFIED="1674163468109" TEXT="Grid-Zelle f&#xfc;r die Placement-Controls vorsehen">
+<linktarget COLOR="#b1493c" DESTINATION="ID_1762683235" ENDARROW="Default" ENDINCLINATION="624;37;" ID="Arrow_ID_1560223761" SOURCE="ID_1332292119" STARTARROW="None" STARTINCLINATION="129;-6;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node CREATED="1563469608318" ID="ID_174979019" MODIFIED="1563469619520" TEXT="zus&#xe4;tzliche sub-Tracks resultieren in zus&#xe4;tzlichen Zeilen">
-<node CREATED="1563469770472" ID="ID_1252550324" MODIFIED="1563469775934" TEXT="einf&#xfc;gen"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469770472" ID="ID_1252550324" MODIFIED="1674163220678" TEXT="einf&#xfc;gen gem&#xe4;&#xdf; Zahl der Kind-Tracks">
+<icon BUILTIN="flag-yellow"/>
+</node>
 <node CREATED="1563469790905" ID="ID_1917094772" MODIFIED="1563469795921" TEXT="re-Konstruieren">
 <node CREATED="1563469797573" ID="ID_615107402" MODIFIED="1563469801027" TEXT="platt machen"/>
 <node CREATED="1563469807081" ID="ID_1454613932" MODIFIED="1563469830842" TEXT="auf erneutes Einf&#xfc;gen warten"/>
@@ -27759,7 +27782,8 @@
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469686644" ID="ID_467394520" MODIFIED="1563469732788" TEXT="gar nicht wenn es nur einen Kind-Track gibt">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469700651" ID="ID_478580800" MODIFIED="1563469729247" TEXT="auf die richtige H&#xf6;he zielen">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469700651" ID="ID_478580800" MODIFIED="1674161457707" TEXT="auf die richtige H&#xf6;he zielen">
+<linktarget COLOR="#bf7897" DESTINATION="ID_478580800" ENDARROW="Default" ENDINCLINATION="451;41;" ID="Arrow_ID_513449931" SOURCE="ID_1311832889" STARTARROW="None" STARTINCLINATION="481;-27;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469735149" ID="ID_704791408" MODIFIED="1563469741153" TEXT="Selection-State zeigen">
@@ -27773,7 +27797,7 @@
 <arrowlink COLOR="#4b98e2" DESTINATION="ID_1754764132" ENDARROW="Default" ENDINCLINATION="-2912;207;" ID="Arrow_ID_468901844" STARTARROW="None" STARTINCLINATION="698;66;"/>
 </node>
 <node CREATED="1566955574281" ID="ID_1649819002" MODIFIED="1566955652259" TEXT="mu&#xdf; gemeinsam mit unterem Body-Canvas scrollen">
-<arrowlink COLOR="#327dd5" DESTINATION="ID_1718751102" ENDARROW="Default" ENDINCLINATION="-1329;-302;" ID="Arrow_ID_1962173714" STARTARROW="None" STARTINCLINATION="631;0;"/>
+<arrowlink COLOR="#327dd5" DESTINATION="ID_1718751102" ENDARROW="Default" ENDINCLINATION="-1329;-302;" ID="Arrow_ID_1962173714" STARTARROW="None" STARTINCLINATION="650;36;"/>
 </node>
 </node>
 </node>
@@ -29164,6 +29188,48 @@
 <linktarget COLOR="#ea7967" DESTINATION="ID_1623890878" ENDARROW="Default" ENDINCLINATION="24;-87;" ID="Arrow_ID_809556626" SOURCE="ID_142948287" STARTARROW="None" STARTINCLINATION="119;11;"/>
 <icon BUILTIN="flag-pink"/>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1674161380587" ID="ID_1311832889" MODIFIED="1674161457707" TEXT="Platz f&#xfc;r Placement-Controlls sinnvoll anordnen">
+<arrowlink COLOR="#bf7897" DESTINATION="ID_478580800" ENDARROW="Default" ENDINCLINATION="451;41;" ID="Arrow_ID_513449931" STARTARROW="None" STARTINCLINATION="481;-27;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1674163294922" ID="ID_1332292119" LINK="#ID_1650195806" MODIFIED="1674163468109" TEXT="Probleme mit der vertikalen Koordination bei nested Tracks">
+<arrowlink COLOR="#b1493c" DESTINATION="ID_1762683235" ENDARROW="Default" ENDINCLINATION="624;37;" ID="Arrow_ID_1560223761" STARTARROW="None" STARTINCLINATION="129;-6;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1674158539561" ID="ID_1440303749" MODIFIED="1674160219745" TEXT="#1265 define expanding/collapsing of tracks">
+<linktarget COLOR="#926b99" DESTINATION="ID_1440303749" ENDARROW="Default" ENDINCLINATION="-978;62;" ID="Arrow_ID_1979782904" SOURCE="ID_1119649795" STARTARROW="None" STARTINCLINATION="-281;21;"/>
+<linktarget COLOR="#c65e7c" DESTINATION="ID_1440303749" ENDARROW="Default" ENDINCLINATION="-1806;-99;" ID="Arrow_ID_537995229" SOURCE="ID_852402445" STARTARROW="None" STARTINCLINATION="-421;38;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1674160660563" ID="ID_1828648487" MODIFIED="1674161293621" TEXT="#1266 implement scope rulers and group tracks">
+<linktarget COLOR="#8a4d65" DESTINATION="ID_1828648487" ENDARROW="Default" ENDINCLINATION="-2734;159;" ID="Arrow_ID_502951484" SOURCE="ID_1409730860" STARTARROW="None" STARTINCLINATION="-1113;-73;"/>
+<icon BUILTIN="hourglass"/>
+<node CREATED="1674160771852" ID="ID_459820507" MODIFIED="1674161151512" TEXT="Def &#xbb;scope ruler&#xab;">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      Jeder Track kann 0...N Ruler haben (Ruler = horizontale Scala);
+    </p>
+    <ul>
+      <li>
+        einer von diesen ist der &#187;scope ruler&#171;
+      </li>
+      <li>
+        er ersetzt den Track und den gesamten Scope der sub-Tracks in der Pr&#228;sentation
+      </li>
+    </ul>
+  </body>
+</html></richcontent>
+<icon BUILTIN="info"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1674161152794" ID="ID_1182180069" MODIFIED="1674161238640" TEXT="&#xd83e;&#xdc32; unklar: Model-Repr&#xe4;sentation der Ruler">
+<arrowlink COLOR="#af637b" DESTINATION="ID_1945074845" ENDARROW="Default" ENDINCLINATION="-348;-196;" ID="Arrow_ID_1261991748" STARTARROW="None" STARTINCLINATION="-383;24;"/>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 <node COLOR="#435e98" CREATED="1555084648375" ID="ID_483631091" MODIFIED="1565283046031" TEXT="Thema: Struktur-Profil">
@@ -29811,9 +29877,11 @@
 <node CREATED="1554995813195" ID="ID_1158334025" MODIFIED="1557498707229" TEXT="sind Modell-Elemente"/>
 <node CREATED="1554995818270" ID="ID_753876518" MODIFIED="1557498707229" TEXT="werden in den Track injiziert"/>
 </node>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1554995829834" ID="ID_1945074845" MODIFIED="1557498707229" TEXT="teilweise noch unklar">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1554995829834" ID="ID_1945074845" MODIFIED="1674161238640" TEXT="teilweise noch unklar">
+<linktarget COLOR="#af637b" DESTINATION="ID_1945074845" ENDARROW="Default" ENDINCLINATION="-348;-196;" ID="Arrow_ID_1261991748" SOURCE="ID_1182180069" STARTARROW="None" STARTINCLINATION="-383;24;"/>
 <icon BUILTIN="broken-line"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1554995834875" ID="ID_1119649795" MODIFIED="1557498707229" TEXT="Zusammenspiel mit Expand/Collapse">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1554995834875" ID="ID_1119649795" MODIFIED="1674159488258" TEXT="Zusammenspiel mit Expand/Collapse">
+<arrowlink COLOR="#926b99" DESTINATION="ID_1440303749" ENDARROW="Default" ENDINCLINATION="-978;62;" ID="Arrow_ID_1979782904" STARTARROW="None" STARTINCLINATION="-281;21;"/>
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1555020163776" ID="ID_1470546162" MODIFIED="1557498707229" TEXT="collapsed == Scope durch Ruler ersetzt"/>
 <node CREATED="1555020175102" ID="ID_1798602" MODIFIED="1557498707229">
@@ -29828,6 +29896,7 @@
   </body>
 </html></richcontent>
 </node>
+<node CREATED="1674159496551" ID="ID_1094568733" MODIFIED="1674159514737" TEXT="Trotzdem mu&#xdf; es in das Timeline-globale Layout einbezogen werden"/>
 </node>
 <node CREATED="1561151742029" ID="ID_857875045" MODIFIED="1561151755207" TEXT="repr&#xe4;sentiert als Ruler des top-level-Track"/>
 <node COLOR="#338800" CREATED="1561151772593" ID="ID_1142063549" MODIFIED="1566406715937" TEXT="aber die Zahl der Pr&#xe4;fix-Elemente mu&#xdf; korrekt eingesetzt werden">
@@ -29919,7 +29988,7 @@
 </node>
 <node CREATED="1566955479862" HGAP="37" ID="ID_933224238" MODIFIED="1566955502545" TEXT="Koordinaten &amp; Position" VSHIFT="-9">
 <node CREATED="1566955505470" ID="ID_1718751102" MODIFIED="1566955652259" TEXT="unterer Canvas mu&#xdf; zusammen mit Header-Pane scrollen">
-<linktarget COLOR="#327dd5" DESTINATION="ID_1718751102" ENDARROW="Default" ENDINCLINATION="-1329;-302;" ID="Arrow_ID_1962173714" SOURCE="ID_1649819002" STARTARROW="None" STARTINCLINATION="631;0;"/>
+<linktarget COLOR="#327dd5" DESTINATION="ID_1718751102" ENDARROW="Default" ENDINCLINATION="-1329;-302;" ID="Arrow_ID_1962173714" SOURCE="ID_1649819002" STARTARROW="None" STARTINCLINATION="650;36;"/>
 <node COLOR="#338800" CREATED="1566955655903" ID="ID_652481986" MODIFIED="1566955664590" TEXT="gemeinsames Adjustment verdrahten">
 <icon BUILTIN="button_ok"/>
 </node>
@@ -31548,7 +31617,6 @@
 </node>
 <node CREATED="1564497891485" ID="ID_1183787016" MODIFIED="1564932176101" TEXT="Ha! man mu&#xdf; irgendwo eine Farbe angeben">
 <linktarget COLOR="#2ee773" DESTINATION="ID_1183787016" ENDARROW="Default" ENDINCLINATION="120;7;" ID="Arrow_ID_1051090636" SOURCE="ID_621726316" STARTARROW="None" STARTINCLINATION="-30;75;"/>
-<linktarget COLOR="#2ee773" DESTINATION="ID_1183787016" ENDARROW="Default" ENDINCLINATION="278;16;" ID="Arrow_ID_1462879108" SOURCE="ID_1801143265" STARTARROW="None" STARTINCLINATION="344;0;"/>
 <icon BUILTIN="idea"/>
 </node>
 <node CREATED="1564497939401" ID="ID_1944950668" MODIFIED="1564497957953" TEXT="...dann wird das outset/inset durchaus sichtbar"/>
@@ -31587,16 +31655,15 @@
 <icon BUILTIN="forward"/>
 <node CREATED="1563112482359" ID="ID_100127081" MODIFIED="1563112487856" TEXT="Rahmen mit Gap zeichnen"/>
 <node CREATED="1563112489001" ID="ID_1802227725" MODIFIED="1563112511333" TEXT="...und dadurch die Oberseite verdecken"/>
-<node CREATED="1563636755968" ID="ID_145032855" MODIFIED="1563636768594" TEXT="funktioniert... aber zwei Probleme">
-<icon BUILTIN="broken-line"/>
+<node COLOR="#435e98" CREATED="1563636755968" ID="ID_145032855" MODIFIED="1674159053972" TEXT="funktioniert... aber zwei Probleme">
+<icon BUILTIN="idea"/>
 <node COLOR="#435e98" CREATED="1563636787971" ID="ID_362681600" MODIFIED="1564932601661" TEXT="Rahmen wird solid gezeichnet, nicht outset">
 <arrowlink COLOR="#4daab7" DESTINATION="ID_391875364" ENDARROW="Default" ENDINCLINATION="-88;45;" ID="Arrow_ID_1840813206" STARTARROW="None" STARTINCLINATION="-335;-6;"/>
 <icon BUILTIN="button_ok"/>
 <node CREATED="1564498321121" ID="ID_277450056" MODIFIED="1564498326722" TEXT="stimmt gar nicht">
 <icon BUILTIN="ksmiletris"/>
 </node>
-<node CREATED="1564498328208" ID="ID_1075781781" MODIFIED="1564498334513" TEXT="man mu&#xdf; nur eine Farbe setzen"/>
-<node CREATED="1564498560001" ID="ID_1801143265" MODIFIED="1564932176101" TEXT="man mu&#xdf; nur eine Farbe setzen">
+<node CREATED="1564498328208" ID="ID_1801143265" MODIFIED="1564932176101" TEXT="man mu&#xdf; nur eine Farbe setzen">
 <arrowlink COLOR="#2ee773" DESTINATION="ID_1183787016" ENDARROW="Default" ENDINCLINATION="278;16;" ID="Arrow_ID_1462879108" STARTARROW="None" STARTINCLINATION="344;0;"/>
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@@ -43389,8 +43456,8 @@
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-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1672883648918" ID="ID_1140551016" MODIFIED="1672883762952" TEXT="Zugangsweg schaffen f&#xfc;r ZoomWindow-Aktuatoren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1672883648918" FOLDED="true" ID="ID_1140551016" MODIFIED="1673918644481" TEXT="Zugangsweg schaffen f&#xfc;r ZoomWindow-Aktuatoren">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1672883866721" ID="ID_265373712" MODIFIED="1672883891409" TEXT="jeweils anzubinden...">
 <node CREATED="1672883669691" ID="ID_233898229" MODIFIED="1672883705186" TEXT="horizontale Scrollbar"/>
 <node CREATED="1672883684145" ID="ID_1407291054" MODIFIED="1672883701874" TEXT="Ermittlung der realen Pixel-Weite"/>
@@ -43469,7 +43536,8 @@
   </body>
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-<node CREATED="1672952474418" ID="ID_1703019039" MODIFIED="1672952486547" TEXT="unn&#xf6;tige Umwege &#xfc;ber Zeit-Werte m&#xf6;glichst vermeiden">
+<node CREATED="1672952474418" ID="ID_1703019039" MODIFIED="1673918599660" TEXT="unn&#xf6;tige Umwege &#xfc;ber Zeit-Werte m&#xf6;glichst vermeiden">
+<icon BUILTIN="button_cancel"/>
 <node CREATED="1672952510381" ID="ID_557400282" MODIFIED="1672952543555" TEXT="insofern die Rechnungen als pr&#xe4;zise gelten"/>
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 <richcontent TYPE="NOTE"><html>
@@ -43483,9 +43551,13 @@
   </body>
 </html></richcontent>
 </node>
+<node COLOR="#435e98" CREATED="1673918575368" ID="ID_1602314348" MODIFIED="1673918594542" TEXT="aber zumindest die Ausdehnung mu&#xdf; ich &#xfc;ber die Zeit-Werte ausrechnen">
+<icon BUILTIN="yes"/>
+</node>
 </node>
 <node CREATED="1672952644887" ID="ID_393917969" MODIFIED="1672952661568" TEXT="ggfs aber Stellung der Scrollbars pr&#xfc;fen und rekalibrieren"/>
-<node CREATED="1672956427506" ID="ID_1572841890" MODIFIED="1672956430600" TEXT="Struktur">
+<node CREATED="1672956427506" ID="ID_1572841890" MODIFIED="1673918605435" TEXT="Struktur">
+<icon BUILTIN="forward"/>
 <node CREATED="1672956446738" ID="ID_419294832" MODIFIED="1672960594911" TEXT="Adjustment::valueChanged() &#x27fc; syncZoomWindow(Adjustment&amp;)"/>
 <node CREATED="1672956504172" ID="ID_1390665381" MODIFIED="1672960626188" TEXT="BodyCanvasWidget::on_size_allocate() &#x27fc; sizeZoomWindow()">
 <node CREATED="1672960628748" ID="ID_31432666" MODIFIED="1672960671941" TEXT="Display-Evaluation &#x27f6; update Adjustment based on ZoomWindow"/>
@@ -43493,9 +43565,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1672787519757" ID="ID_37048779" MODIFIED="1672787852442" TEXT="Pixel-Weite kalibrieren: zu Beginn der Display-Evaluation einschleifen">
-<arrowlink COLOR="#4a449e" DESTINATION="ID_1189311522" ENDARROW="Default" ENDINCLINATION="1548;60;" ID="Arrow_ID_751989601" STARTARROW="None" STARTINCLINATION="1439;57;"/>
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1672787519757" ID="ID_37048779" MODIFIED="1673918673633" TEXT="Pixel-Weite kalibrieren: zu Beginn der Display-Evaluation einschleifen">
+<arrowlink COLOR="#4a759a" DESTINATION="ID_1189311522" ENDARROW="Default" ENDINCLINATION="1548;60;" ID="Arrow_ID_751989601" STARTARROW="None" STARTINCLINATION="1439;57;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1672798860387" ID="ID_981451006" MODIFIED="1673747058376" TEXT="Feedback auf Scrolling">
 <icon BUILTIN="pencil"/>
@@ -43505,8 +43577,8 @@
 <node COLOR="#338800" CREATED="1672969399236" ID="ID_105188286" MODIFIED="1672969452360" TEXT="Logik &#xfc;berarbeitet: Werte kommmen jetzt an">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#435e98" CREATED="1672969412314" ID="ID_128441040" MODIFIED="1673917833235" TEXT="Fehler: horizontale Ausdehnung instabil">
-<linktarget COLOR="#e91670" DESTINATION="ID_128441040" ENDARROW="Default" ENDINCLINATION="-511;34;" ID="Arrow_ID_1077460507" SOURCE="ID_637545532" STARTARROW="None" STARTINCLINATION="-190;-19;"/>
+<node COLOR="#435e98" CREATED="1672969412314" FOLDED="true" ID="ID_128441040" MODIFIED="1673917833235" TEXT="Fehler: horizontale Ausdehnung instabil">
+<linktarget COLOR="#6a236e" DESTINATION="ID_128441040" ENDARROW="Default" ENDINCLINATION="-511;34;" ID="Arrow_ID_1077460507" SOURCE="ID_637545532" STARTARROW="None" STARTINCLINATION="-190;-19;"/>
 <icon BUILTIN="broken-line"/>
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@@ -43649,8 +43721,8 @@
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 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1673747138573" ID="ID_1650195806" MODIFIED="1673747159901" TEXT="aber Tracks mit Content und Kind-Tracks wachsen weiterhin">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1673747138573" ID="ID_1650195806" MODIFIED="1673918693551" TEXT="aber Tracks mit Content und Kind-Tracks wachsen weiterhin">
+<icon BUILTIN="broken-line"/>
 </node>
 </node>
 </node>
@@ -43664,7 +43736,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1673746034872" ID="ID_66895155" MODIFIED="1673747049281" TEXT="Segfault bei horizontalem Scroling">
+<node COLOR="#435e98" CREATED="1673746034872" FOLDED="true" ID="ID_66895155" MODIFIED="1673747049281" TEXT="Segfault bei horizontalem Scroling">
 <icon BUILTIN="broken-line"/>
 <node CREATED="1673746067311" ID="ID_154133331" MODIFIED="1673746074945" TEXT="Beobachtung">
 <icon BUILTIN="idea"/>
@@ -43734,7 +43806,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#435e98" CREATED="1673807997325" ID="ID_1009074242" MODIFIED="1673824061664" TEXT="Assertion-fail">
+<node COLOR="#435e98" CREATED="1673807997325" FOLDED="true" ID="ID_1009074242" MODIFIED="1673824061664" TEXT="Assertion-fail">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -43747,7 +43819,7 @@
 </html></richcontent>
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 <node CREATED="1673808698810" ID="ID_825689705" MODIFIED="1673808714792" TEXT="wahrscheinlicher Grund: signalStruktureChange ausgel&#xf6;st"/>
-<node CREATED="1673809260386" ID="ID_1757495179" MODIFIED="1673809267628" TEXT="Beobachtung">
+<node COLOR="#435e98" CREATED="1673809260386" FOLDED="true" ID="ID_1757495179" MODIFIED="1673918456525" TEXT="Beobachtung">
 <icon BUILTIN="info"/>
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 <node CREATED="1673809269809" ID="ID_1319270486" MODIFIED="1673809274764" TEXT="im GUI-Thread"/>
@@ -43841,7 +43913,7 @@
 </node>
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-<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1673822498449" ID="ID_969173291" MODIFIED="1673822509927" TEXT="Fazit: zwei Probleme">
+<node COLOR="#435e98" CREATED="1673822498449" ID="ID_969173291" MODIFIED="1673918448602" TEXT="Fazit: zwei Probleme">
 <icon BUILTIN="forward"/>
 <node CREATED="1673822512176" ID="ID_838311135" MODIFIED="1673822561177">
 <richcontent TYPE="NODE"><html>
@@ -43888,8 +43960,8 @@
 </node>
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 <node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1673822589957" ID="ID_637545532" MODIFIED="1673822645422" TEXT="layout_.getPixSpan() entgleist">
-<arrowlink COLOR="#e91670" DESTINATION="ID_128441040" ENDARROW="Default" ENDINCLINATION="-511;34;" ID="Arrow_ID_1077460507" STARTARROW="None" STARTINCLINATION="-190;-19;"/>
-<node CREATED="1673822656960" ID="ID_847463371" MODIFIED="1673822785272" TEXT="der End-Wert verh&#xe4;lt sich &#xbb;zyklisch&#xab; und wird bisweilen negativ">
+<arrowlink COLOR="#6a236e" DESTINATION="ID_128441040" ENDARROW="Default" ENDINCLINATION="-511;34;" ID="Arrow_ID_1077460507" STARTARROW="None" STARTINCLINATION="-190;-19;"/>
+<node COLOR="#435e98" CREATED="1673822656960" ID="ID_847463371" MODIFIED="1673918421685" TEXT="der End-Wert verh&#xe4;lt sich &#xbb;zyklisch&#xab; und wird bisweilen negativ">
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 <node CREATED="1673822724035" ID="ID_1257160861" MODIFIED="1673822739708" TEXT="nur deshalb wird hier die Scroll-Position signifikant verschoben">
@@ -64670,6 +64742,36 @@
 </node>
 <node CREATED="1533918281880" ID="ID_1584868520" MODIFIED="1557498707237" TEXT="MObject"/>
 </node>
+<node CREATED="1674160453319" ID="ID_1069058254" MODIFIED="1674160457633" TEXT="Fragen der Anordnung">
+<node CREATED="1674160465628" ID="ID_1715063705" MODIFIED="1674160468831" TEXT="Konventionen"/>
+<node CREATED="1674160469453" ID="ID_299990959" MODIFIED="1674160474856" TEXT="m&#xf6;glicher Spielraum">
+<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1674160530502" ID="ID_949776360" MODIFIED="1674160554933" TEXT="Thema: Content auf nested-Tracks">
+<icon BUILTIN="hourglass"/>
+<node CREATED="1674160565696" ID="ID_915488068" MODIFIED="1674160570917" TEXT="typische Erwartung">
+<node CREATED="1674160572143" ID="ID_846540731" MODIFIED="1674160579754" TEXT="Content ist nur auf Leaf-Tracks"/>
+<node CREATED="1674160581694" ID="ID_1996064052" MODIFIED="1674160601189" TEXT="sobald sub-Tracks auftreten, wird Content auf diese nach unten verschoben"/>
+<node CREATED="1674160613610" ID="ID_1409730860" MODIFIED="1674161308527">
+<richcontent TYPE="NODE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      1/2023: unklar &#8212; <i>wer macht das?</i>
+    </p>
+  </body>
+</html></richcontent>
+<arrowlink COLOR="#8a4d65" DESTINATION="ID_1828648487" ENDARROW="Default" ENDINCLINATION="-2734;159;" ID="Arrow_ID_502951484" STARTARROW="None" STARTINCLINATION="-1113;-73;"/>
+</node>
+</node>
+</node>
+</node>
+<node CREATED="1674160475478" ID="ID_1934740344" MODIFIED="1674160478839" TEXT="Wechselwirkungen">
+<node CREATED="1674160479667" ID="ID_1846459378" MODIFIED="1674160484151" TEXT="mit UI-Mechanik">
+<node CREATED="1674160486844" ID="ID_73340930" LINK="#ID_1440303749" MODIFIED="1674160516391" TEXT="Expand / Collapse"/>
+</node>
+</node>
+</node>
 <node CREATED="1533401497075" ID="ID_598742497" MODIFIED="1557498707237" TEXT="Struktur-&#xc4;nderungen">
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1533401543765" ID="ID_1439915831" MODIFIED="1557498707237" TEXT="erkennen">
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