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Clip-Drag: successfully hook up a signal binding for the trigger condition

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Setup the scaffolding necessary to get at the actual clip widget
and to establish a signal connection to the button_pressed signal.
The intention is to watch this in conjunction with mouse movements
for detection of the actual gesture.

At the moment, I am using button widgets as placeholder for the actual
clip widgets (not yet implemented...). And, as a tiny little success,
these buttons now invoke the gesture controller on right click
(left click is seemingly consumed by the button itself)
This commit is contained in:
Fischlurch 2021-04-03 19:49:30 +02:00
parent 1187a81943
commit e72df5c02d
8 changed files with 256 additions and 36 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/stage/gtk-lumiera.cpp
View file

@ -128,7 +128,7 @@ namespace stage {
void
runGUI (Subsys::SigTerm reportOnTermination)
runGUI (Subsys::SigTerm reportOnTermination) ///< this is the UI-Thread
{
string shutdownLog = GtkLumiera{}.run();

7
src/stage/interact/cmd-context.hpp
View file

@ -65,7 +65,9 @@
//#include <string>
#include <utility>
namespace Gtk {
class Widget;
}
namespace stage {
namespace interact {
@ -90,6 +92,9 @@ namespace interact {
{
protected:
virtual ~Subject(); ///< this is an interface
public:
virtual Gtk::Widget& exposeWidget() =0;
};

39
src/stage/interact/drag-relocate-controller.hpp
View file

@ -47,12 +47,12 @@
#define STAGE_INTERACT_DRAG_RELOCATE_CONTROLLER_H
#include "lib/error.hpp"
#include "lib/nocopy.hpp"
#include "stage/gtk-base.hpp"
#include "stage/interact/interaction-state.hpp"
#include "stage/interact/cmd-context.hpp"
//#include "lib/idi/entry-id.hpp"
//#include "lib/symbol.hpp"
#include "lib/nocopy.hpp"
#include "lib/util.hpp"
//#include <string>
@ -66,6 +66,24 @@ namespace interact {
// using std::string;
using util::isnil;
#define ON_EXCEPTION_RETURN(_VAL_,_OP_DESCR_) \
catch (std::exception& problem) \
{ \
const char* errID = lumiera_error(); \
WARN (stage, "%s (Signal Handler) failed: %s",\
_OP_DESCR_, problem.what()); \
TRACE (debugging, "Error flag was: %s", errID); \
return (_VAL_); \
} \
catch (...) \
{ \
const char* errID = lumiera_error(); \
ERROR (stage, "(Signal Handler) %s failed with " \
"unknown exception; error flag is: %s" \
, _OP_DESCR_, errID); \
return (_VAL_); \
}
/**
* Abstract foundation context dependent UI interactions.
@ -85,14 +103,27 @@ namespace interact {
class DragRelocateController
: public InteractionState
{
void
linkTrigger (Subject& subject, Symbol cmdID) override
{
REQUIRE (not isnil (cmdID));
UNIMPLEMENTED ("use the Subject interface to hook up a trigger signal");
subject.exposeWidget().signal_button_press_event().connect(
[&](GdkEventButton* button) -> bool
{
try{ return detectActivation(subject, button); }
ON_EXCEPTION_RETURN (false, "activate dragging gesture")
}
);
}
bool
detectActivation (Subject& subject, GdkEventButton* button_event)
{
throw lumiera::error::Fatal("UNIMPLEMENTED Maybe DRAG-start?????");
//return false;
}
public:
DragRelocateController()
// :

9
src/stage/interact/gesture-state.cpp
View file

@ -37,13 +37,12 @@
*/
#include "lib/error.hpp"
//#include "lib/util.hpp"
//#include "lib/symbol.hpp"
//#include "include/logging.h"
#include "lib/format-string.hpp"
#include "stage/gtk-base.hpp"
#include "stage/interact/gesture-state.hpp"
#include "stage/interact/drag-relocate-controller.hpp"
#include "lib/format-string.hpp"
//#include "lib/symbol.hpp"
//#include "lib/util.hpp"
//#include <string>
//#include <map>

13
src/stage/timeline/clip-presenter.hpp
View file

@ -83,6 +83,11 @@ namespace timeline {
/**
* A View-Model entity to represent a clip within the timeline-UI.
* @remarks
* - by means of implementing \ref interact::Subject, "the Clip", as represented
* through the ClipPresenter, can be subject to dragging gestures; the wiring
* to trigger the detection of such gestures is provided by #establishAppearance(),
* more specifically, this wiring happens whenever a new clip-widget is established.
* @todo WIP-WIP as of 12/2016
*/
class ClipPresenter
@ -212,6 +217,14 @@ namespace timeline {
}
private:/* ===== Subject-Interface ===== */
Gtk::Widget&
exposeWidget() override
{
return ClipDelegate::expect_and_expose_Widget (widget_);
}
private:/* ===== Internals ===== */
/**
* reevaluate desired presentation mode and available data,

23
src/stage/timeline/clip-widget.cpp
View file

@ -94,7 +94,7 @@
#include "stage/timeline/clip-widget.hpp"
//#include "stage/ui-bus.hpp"
//#include "lib/format-string.hpp"
#include "lib/format-string.hpp"
//#include "lib/format-cout.hpp"
#include "lib/util.hpp"
@ -105,7 +105,7 @@
//using util::_Fmt;
using util::_Fmt;
//using util::contains;
//using Gtk::Widget;
//using sigc::mem_fun;
@ -118,7 +118,9 @@ using std::optional;
namespace stage {
LUMIERA_ERROR_DEFINE (UIWIRING, "GUI state contradicts assumptions in signal wiring");
namespace timeline {
namespace error = lumiera::error;
const int ClipDelegate::defaultOffsetY{0};
const string ClipDelegate::defaultName{_("clip")};
@ -477,4 +479,21 @@ namespace timeline {
}
Gtk::Widget&
ClipDelegate::expect_and_expose_Widget (PDelegate& manager)
{
if (manager and manager->currentAppearance() >= ClipDelegate::ABRIDGED)
return static_cast<ClipWidget&> (*manager);
else
throw error::State (_Fmt{"Attempt to access the Widget for clip('%s') in presentation state %d. "
"This implies an error in the signal wiring logic and state handling."}
% string{manager? manager->getClipName() : "<not initialised>"}
% int {manager? manager->currentAppearance() : -1}
,LERR_(UIWIRING)
);
}
}}// namespace stage::timeline

9
src/stage/timeline/clip-widget.hpp
View file

@ -230,6 +230,15 @@ namespace timeline {
WidgetHook* newView =nullptr,
optional<TimeSpan> const& timing =nullopt);
/**
* Wrapper to safely expose the actual clip implementation widget.
* @throws error::State if the current presentation / appearance style
* does not actually use a dedicated clip widget.
* @remark the assumption is for the caller to arrange the calling context
* such that existence of an actual widget can safely be assumed.
*/
static Gtk::Widget& expect_and_expose_Widget (PDelegate& manager);
private:/* ===== Internals ===== */

190
wiki/thinkPad.ichthyo.mm
View file

@ -644,7 +644,12 @@
<node CREATED="1582493598679" ID="ID_14952077" MODIFIED="1582493672224" TEXT="es gibt einen Race im Start-up (#1192)">
<arrowlink COLOR="#f12a42" DESTINATION="ID_540724043" ENDARROW="Default" ENDINCLINATION="-942;0;" ID="Arrow_ID_893876754" STARTARROW="None" STARTINCLINATION="864;64;"/>
</node>
<node CREATED="1582493675037" ID="ID_974783388" MODIFIED="1582493696790" TEXT="zus&#xe4;tzlich gibt es die L&#xfc;cke mit der noch nicht ge&#xf6;ffneten Facade"/>
<node CREATED="1582493675037" ID="ID_974783388" MODIFIED="1582493696790" TEXT="zus&#xe4;tzlich gibt es die L&#xfc;cke mit der noch nicht ge&#xf6;ffneten Facade">
<arrowlink COLOR="#d68361" DESTINATION="ID_590420902" ENDARROW="Default" ENDINCLINATION="314;0;" ID="Arrow_ID_1471960575" STARTARROW="None" STARTINCLINATION="109;5;"/>
<node COLOR="#ab7a47" CREATED="1617458903748" HGAP="36" ID="ID_603424020" MODIFIED="1617459170807" TEXT="unwahrscheinlich aber besteht weiterhin" VSHIFT="-1">
<edge COLOR="#b28c66"/>
</node>
</node>
<node CREATED="1582493784351" ID="ID_548491726" MODIFIED="1582493794113" TEXT="sonst ist die Synchronisation sauber">
<icon BUILTIN="idea"/>
</node>
@ -653,6 +658,18 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1582493761032" ID="ID_117656877" LINK="https://issues.lumiera.org/ticket/1177" MODIFIED="1582493774585" TEXT=" #1177 Subsytem-Runner design rework ">
<icon BUILTIN="flag-yellow"/>
</node>
<node COLOR="#435e98" CREATED="1617459426438" ID="ID_1892682204" MODIFIED="1617459482615">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
verbleibende Probleme sind <i>&quot;marginal&quot;</i>&#160;und besser im Subsystem-Runner zu addressieren
</p>
</body>
</html></richcontent>
</node>
</node>
</node>
</node>
@ -660,17 +677,17 @@
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1484871188635" ID="ID_1922412139" MODIFIED="1557498707217" TEXT="Storage/Lebenzyklus des Term-Funktors (jetzt) OK">
<arrowlink COLOR="#a9b4c1" DESTINATION="ID_375871642" ENDARROW="Default" ENDINCLINATION="-164;-16;" ID="Arrow_ID_896120556" STARTARROW="None" STARTINCLINATION="345;-16;"/>
<arrowlink COLOR="#68b4bb" DESTINATION="ID_375871642" ENDARROW="Default" ENDINCLINATION="-300;-60;" ID="Arrow_ID_896120556" STARTARROW="None" STARTINCLINATION="495;28;"/>
<icon BUILTIN="button_ok"/>
</node>
</node>
<node CREATED="1484793022924" HGAP="36" ID="ID_1019455888" MODIFIED="1557498707217" TEXT="neuer Facade-Kontext" VSHIFT="-8">
<node CREATED="1484793022924" HGAP="100" ID="ID_1019455888" MODIFIED="1557498707217" TEXT="neuer Facade-Kontext" VSHIFT="2">
<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="1557498707217" TEXT="RAII-Stil"/>
<node CREATED="1501866591164" ID="ID_751026549" MODIFIED="1557498707217" TEXT="&#xf6;ffnet/schlie&#xdf;t die &#xf6;ffentlichen Interfaces"/>
</node>
<node CREATED="1481502251450" HGAP="96" ID="ID_1125529151" MODIFIED="1557498707217" TEXT="m&#xf6;glicher Race" VSHIFT="16">
<node COLOR="#7a2f10" CREATED="1481502251450" FOLDED="true" HGAP="96" ID="ID_1125529151" MODIFIED="1557498707217" TEXT="m&#xf6;glicher Race" VSHIFT="14">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1484797174890" ID="ID_986391148" MODIFIED="1557498707217" TEXT="triggerShutdown() kommt bevor GuiNotification offen ist">
<icon BUILTIN="info"/>
@ -678,6 +695,7 @@
<node CREATED="1484797210597" ID="ID_1555304752" MODIFIED="1557498707217" TEXT="ist das &#xfc;berhaupt ein Problem">
<icon BUILTIN="help"/>
<node CREATED="1484797230051" ID="ID_590420902" MODIFIED="1557498707217" TEXT="ja, weil dann das GUI weiterl&#xe4;uft">
<linktarget COLOR="#d68361" DESTINATION="ID_590420902" ENDARROW="Default" ENDINCLINATION="314;0;" ID="Arrow_ID_1471960575" SOURCE="ID_974783388" STARTARROW="None" STARTINCLINATION="109;5;"/>
<icon BUILTIN="idea"/>
</node>
<node CREATED="1501867017251" ID="ID_1980251688" MODIFIED="1557498707217" TEXT="...und der shutdown-Proze&#xdf; blockt"/>
@ -726,7 +744,7 @@
<node COLOR="#435e98" CREATED="1484797646771" HGAP="44" ID="ID_1605520996" MODIFIED="1557498707217" TEXT="Ausgestaltung" VSHIFT="10">
<icon BUILTIN="button_ok"/>
<node CREATED="1501859455212" ID="ID_751494565" MODIFIED="1557498707217" TEXT="Lebenszyklus">
<node CREATED="1484797663121" ID="ID_134980216" MODIFIED="1557498707217" TEXT="braucht Bus-Connection">
<node COLOR="#435e98" CREATED="1484797663121" FOLDED="true" ID="ID_134980216" MODIFIED="1557498707217" TEXT="braucht Bus-Connection">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1484797863862" ID="ID_464230340" MODIFIED="1561827464529" TEXT="zum Controller machen?">
<icon BUILTIN="button_cancel"/>
@ -772,7 +790,7 @@
<icon BUILTIN="idea"/>
</node>
</node>
<node COLOR="#338800" CREATED="1484799525344" ID="ID_640788614" MODIFIED="1561827464533" TEXT="mu&#xdf; sauber vom Nexus disconnecten">
<node COLOR="#338800" CREATED="1484799525344" FOLDED="true" ID="ID_640788614" MODIFIED="1561827464533" 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"/>
@ -795,7 +813,7 @@
<icon BUILTIN="help"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1584932093080" ID="ID_1234616959" MODIFIED="1584932222621" TEXT="es gibt aber noch einen &#xe4;hnlichen Fehler....">
<arrowlink COLOR="#b183a2" DESTINATION="ID_535289114" ENDARROW="Default" ENDINCLINATION="-2880;0;" ID="Arrow_ID_1219325605" STARTARROW="None" STARTINCLINATION="595;36;"/>
<arrowlink COLOR="#b183a2" DESTINATION="ID_535289114" ENDARROW="Default" ENDINCLINATION="-2880;0;" ID="Arrow_ID_1219325605" STARTARROW="None" STARTINCLINATION="1004;61;"/>
<icon BUILTIN="messagebox_warning"/>
</node>
</node>
@ -820,8 +838,8 @@
</html></richcontent>
<icon BUILTIN="button_ok"/>
</node>
<node CREATED="1484802745625" ID="ID_375871642" MODIFIED="1561827464537" 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;"/>
<node COLOR="#435e98" CREATED="1484802745625" ID="ID_375871642" MODIFIED="1561827464537" TEXT="Heisenbug">
<linktarget COLOR="#68b4bb" DESTINATION="ID_375871642" ENDARROW="Default" ENDINCLINATION="-300;-60;" ID="Arrow_ID_896120556" SOURCE="ID_1922412139" STARTARROW="None" STARTINCLINATION="495;28;"/>
<icon BUILTIN="smily_bad"/>
<node CREATED="1484802752728" ID="ID_634426848" MODIFIED="1518487921046" TEXT="passiert beim Aufruf des TerminationHandle"/>
<node CREATED="1484802766966" ID="ID_370736554" MODIFIED="1518487921046">
@ -871,7 +889,7 @@
</html></richcontent>
</node>
<node CREATED="1484865316147" ID="ID_687373412" MODIFIED="1518487921047" TEXT="wenn ich den Thread mit Lambda starte..."/>
<node CREATED="1484865349366" ID="ID_652410738" MODIFIED="1518487921047" TEXT="betrifft das den term-Functor"/>
<node CREATED="1484865349366" ID="ID_652410738" MODIFIED="1518487921047" TEXT="betrifft den term-Functor intern"/>
<node CREATED="1484865513568" ID="ID_696204655" MODIFIED="1576282358157" TEXT="selbst wenn der Funktor selber per Value &#xfc;bergeben wird">
<richcontent TYPE="NOTE"><html>
<head>
@ -927,7 +945,7 @@
</node>
</node>
</node>
<node CREATED="1484876114521" ID="ID_1082250595" MODIFIED="1557498707217" TEXT="Protokoll zur Kommunikation">
<node COLOR="#435e98" CREATED="1484876114521" ID="ID_1082250595" MODIFIED="1557498707217" TEXT="Protokoll zur Kommunikation">
<icon BUILTIN="info"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#4e0099" CREATED="1484876122960" ID="ID_31825421" MODIFIED="1560688098496" STYLE="fork" TEXT="UI-Bus nur im GUI-Thread">
<arrowlink COLOR="#6c5f80" DESTINATION="ID_489078622" ENDARROW="Default" ENDINCLINATION="712;-47;" ID="Arrow_ID_485145709" STARTARROW="None" STARTINCLINATION="1538;-37;"/>
@ -21895,13 +21913,26 @@
<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">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
erst mal nur mit einem Button, und die Layout-Logik ehr &quot;gesch&#228;tzt&quot; den pr&#228;zise verstanden und umgesetzt. Immerhinn l&#228;uft der DisplayEvaluationPass nun, und auch die Buttons erscheinen an der Stelle, an der ich das erwarten w&#252;rde...
</p>
</body>
</html></richcontent>
<icon BUILTIN="idea"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1583010246034" ID="ID_113344286" MODIFIED="1611533767877" TEXT="Resultat mit Wert vom Header abgleichen">
<icon BUILTIN="flag-yellow"/>
</node>
<node COLOR="#338800" CREATED="1611527674130" ID="ID_1530876056" MODIFIED="1612030681158" TEXT="Ergebnis &#x2259; lokales Maximum &#x2192; TrackBody::contentHeight_">
<linktarget COLOR="#3b4b73" DESTINATION="ID_1530876056" ENDARROW="Default" ENDINCLINATION="802;689;" ID="Arrow_ID_471691943" SOURCE="ID_1232626344" STARTARROW="None" STARTINCLINATION="676;28;"/>
<linktarget COLOR="#3b4b73" DESTINATION="ID_1530876056" ENDARROW="Default" ENDINCLINATION="802;689;" ID="Arrow_ID_471691943" SOURCE="ID_1232626344" STARTARROW="None" STARTINCLINATION="700;24;"/>
<icon BUILTIN="button_ok"/>
<node CREATED="1611533783838" ID="ID_504265049" MODIFIED="1611533798915" TEXT="Vorsicht: es sind zwei Belange">
<icon BUILTIN="messagebox_warning"/>
@ -29114,7 +29145,7 @@
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1584932054082" ID="ID_535289114" MODIFIED="1584932261288" TEXT="#1216 Some UI components are still connected to the backbone at shutdown">
<linktarget COLOR="#b183a2" DESTINATION="ID_535289114" ENDARROW="Default" ENDINCLINATION="-2880;0;" ID="Arrow_ID_1219325605" SOURCE="ID_1234616959" STARTARROW="None" STARTINCLINATION="595;36;"/>
<linktarget COLOR="#b183a2" DESTINATION="ID_535289114" ENDARROW="Default" ENDINCLINATION="-2880;0;" ID="Arrow_ID_1219325605" SOURCE="ID_1234616959" STARTARROW="None" STARTINCLINATION="1004;61;"/>
<linktarget COLOR="#d23194" DESTINATION="ID_535289114" ENDARROW="Default" ENDINCLINATION="90;0;" ID="Arrow_ID_186398670" SOURCE="ID_429363053" STARTARROW="None" STARTINCLINATION="110;9;"/>
<icon BUILTIN="flag-yellow"/>
</node>
@ -29347,6 +29378,9 @@
<linktarget COLOR="#3f67c9" DESTINATION="ID_1043075543" ENDARROW="Default" ENDINCLINATION="210;7;" ID="Arrow_ID_678826417" SOURCE="ID_685143843" STARTARROW="None" STARTINCLINATION="199;11;"/>
<icon BUILTIN="pencil"/>
</node>
<node CREATED="1617471014218" ID="ID_1520693411" MODIFIED="1617471181936" TEXT="Setup und Wiring f&#xfc;r Clip-drag">
<arrowlink COLOR="#883a4e" DESTINATION="ID_1472064878" ENDARROW="Default" ENDINCLINATION="-642;-252;" ID="Arrow_ID_1448328801" STARTARROW="None" STARTINCLINATION="-814;80;"/>
</node>
</node>
</node>
<node CREATED="1568580210235" ID="ID_36042409" MODIFIED="1568580212814" TEXT="Verhalten">
@ -29714,7 +29748,7 @@
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1611527884423" ID="ID_1232626344" MODIFIED="1612030654011" TEXT="Ergebnis der DisplayEvaluation &#x2259; lokales Maximum &#x2192; TrackBody::contentHeight_ ">
<arrowlink COLOR="#3b4b73" DESTINATION="ID_1530876056" ENDARROW="Default" ENDINCLINATION="802;689;" ID="Arrow_ID_471691943" STARTARROW="None" STARTINCLINATION="676;28;"/>
<arrowlink COLOR="#3b4b73" DESTINATION="ID_1530876056" ENDARROW="Default" ENDINCLINATION="802;689;" ID="Arrow_ID_471691943" STARTARROW="None" STARTINCLINATION="700;24;"/>
<icon BUILTIN="button_ok"/>
</node>
</node>
@ -31601,6 +31635,7 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1613349240614" ID="ID_1472064878" MODIFIED="1613349442831" TEXT="erster Entwurf: drag clip">
<linktarget COLOR="#fbd7b5" DESTINATION="ID_1472064878" ENDARROW="Default" ENDINCLINATION="-1443;-151;" ID="Arrow_ID_1918638969" SOURCE="ID_1784185766" STARTARROW="None" STARTINCLINATION="1644;332;"/>
<linktarget COLOR="#f6b667" DESTINATION="ID_1472064878" ENDARROW="Default" ENDINCLINATION="-9;-115;" ID="Arrow_ID_209732384" SOURCE="ID_1489464895" STARTARROW="None" STARTINCLINATION="220;19;"/>
<linktarget COLOR="#883a4e" DESTINATION="ID_1472064878" ENDARROW="Default" ENDINCLINATION="-642;-252;" ID="Arrow_ID_1448328801" SOURCE="ID_1520693411" STARTARROW="None" STARTINCLINATION="-814;80;"/>
<icon BUILTIN="pencil"/>
<node CREATED="1613349479473" ID="ID_1618505083" MODIFIED="1613349488782" TEXT="Doku / Tutorials">
<node CREATED="1613349541627" ID="ID_1745870905" MODIFIED="1613349560713" TEXT="man mu&#xdf; das motion_notify_event beobachten">
@ -31975,6 +32010,10 @@
<node CREATED="1614548871925" ID="ID_1738624566" MODIFIED="1614548889914" TEXT="Vorsicht... es gibt nicht nur einen Canvas">
<icon BUILTIN="stop-sign"/>
</node>
<node CREATED="1617454766067" ID="ID_179209651" MODIFIED="1617454788398" TEXT="als Voraussetzung mu&#xdf; also das Subject seinen Canvas kennen"/>
<node CREATED="1617454793154" ID="ID_133939529" MODIFIED="1617454803637" TEXT="Canvas selber als Abstraktion zu behandeln">
<icon BUILTIN="idea"/>
</node>
</node>
</node>
<node CREATED="1616684203994" ID="ID_1768434265" MODIFIED="1616684226073" TEXT="dann w&#xe4;re aber die eigentliche Detail-Logik wieder &#xfc;ber die Widgets verstreut">
@ -32177,8 +32216,12 @@
</node>
</node>
<node CREATED="1616710202252" ID="ID_220049730" MODIFIED="1616710247050" TEXT="InteractionState sollte nur intern mit CmdContext interagieren">
<icon BUILTIN="idea"/>
<node CREATED="1617454641530" ID="ID_104565280" MODIFIED="1617454704165" TEXT="InteractionState ist ein Adapter zwischen dem Anker (CmdContext) und der konkreten Geste"/>
<node CREATED="1616710625955" ID="ID_69401594" MODIFIED="1616710644751" TEXT="gemeint ist: die Implementation von InteractionState ist konkret">
<node CREATED="1616712015758" ID="ID_1460580308" MODIFIED="1616712028383" TEXT="Entscheidung: jede Geste ist konkret"/>
<node CREATED="1616712015758" ID="ID_1460580308" MODIFIED="1616712028383" TEXT="Entscheidung: jede Geste ist konkret">
<icon BUILTIN="yes"/>
</node>
<node CREATED="1616712031119" ID="ID_17685044" MODIFIED="1616712197269" TEXT="also &quot;Clip-Move&quot; vs &quot;Clip-Attach&quot; vs &quot;Clip-Trim&quot;"/>
<node CREATED="1616712201691" ID="ID_1586890794" MODIFIED="1616712288188" TEXT="denn es sind nicht so viele, da&#xdf; eine zus&#xe4;tzliche Abstraktionsstufe gerechtfertig w&#xe4;re">
<richcontent TYPE="NOTE"><html>
@ -32418,19 +32461,80 @@
<icon BUILTIN="button_ok"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377786842" ID="ID_1829220190" MODIFIED="1617377793038" TEXT="Interface Subject definieren">
<node COLOR="#338800" CREATED="1617377786842" ID="ID_1829220190" MODIFIED="1617471190700" TEXT="Interface Subject definieren">
<icon BUILTIN="button_ok"/>
<node COLOR="#338800" CREATED="1617471241490" ID="ID_293482403" MODIFIED="1617471251679" TEXT="implementieren f&#xfc;r ClipPresenter">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#435e98" CREATED="1617471252385" ID="ID_1769679679" MODIFIED="1617471266204" TEXT="Problem: Zugriff auf das Widget">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1617471267594" ID="ID_1351328929" MODIFIED="1617471285896" TEXT="eigentlich kein Problem, sondern nur h&#xe4;sslich"/>
<node CREATED="1617471305929" ID="ID_663980291" MODIFIED="1617471447147" TEXT="Steht im Widerspruch zum selbst&#xe4;ndig verwalteten Anzeigestil">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...und dadurch ensteht hier ein &quot;linke-Tasche-rechte-Tasche-Spiel&quot;.
</p>
<p>
Wir m&#252;ssen annehmen...
</p>
<ul>
<li>
da&#223; der ClipPresenter das Wiring nur dann einrichtet, wenn tats&#228;chlich ein Clip-Widget erzeugt wurde
</li>
<li>
und da&#223; ein deaktiviertes oder aus dem Display herausgenommenes Widget auch keine Signale mehr sendet
</li>
</ul>
</body>
</html></richcontent>
</node>
<node COLOR="#338800" CREATED="1617471286628" ID="ID_601378287" MODIFIED="1617471303401" TEXT="in statischer Funktion im ClipDelegate versteckt">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1617471454724" ID="ID_347955053" MODIFIED="1617471465856" TEXT="gr&#xfc;ndliche Fehlerbehandlung">
<icon BUILTIN="button_ok"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377754742" ID="ID_1574394085" MODIFIED="1617471528060" TEXT="linkSubject im konkreten Controller">
<icon BUILTIN="pencil"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377734341" ID="ID_1697355210" MODIFIED="1617471509681" TEXT="Widget-Signal-Binding anlegen">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1617471221445" ID="ID_1213832173" MODIFIED="1617471225697" TEXT="Exceptions fangen">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1617471484385" ID="ID_764496740" MODIFIED="1617471492221" TEXT="hierf&#xfc;r ein Makro erfunden">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617471493055" ID="ID_1798821612" MODIFIED="1617471502221" TEXT="TODO: in einen zentralen Header verlegen">
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377754742" ID="ID_1574394085" MODIFIED="1617377766937" TEXT="linkSubject im konkreten Controller">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377734341" ID="ID_1697355210" MODIFIED="1617377784921" TEXT="Widget-Signal-Binding anlegen">
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377772355" ID="ID_1391847346" MODIFIED="1617377784091" TEXT="Subject im Signal-Binding binden">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1617377772355" ID="ID_1391847346" MODIFIED="1617471513483" TEXT="Subject im Signal-Binding binden">
<icon BUILTIN="button_ok"/>
<node COLOR="#435e98" CREATED="1617459517745" ID="ID_1350194192" MODIFIED="1617459539394" TEXT="brauchen wir ein Sigc::Trackable zum Binden?">
<icon BUILTIN="help"/>
<node CREATED="1617459546014" ID="ID_1656180985" MODIFIED="1617459578397" TEXT="konkret: kann der Gesten-Controller vorzeitig zerst&#xf6;rt werden?"/>
<node CREATED="1617459579286" ID="ID_214055342" MODIFIED="1617459650805" TEXT="Nein, sofern er an den Lebenszyklus des InteractionDirectors gebunden ist">
<icon BUILTIN="forward"/>
</node>
<node CREATED="1617459599031" ID="ID_481151247" MODIFIED="1617459613224" TEXT="denn: der UiManager wird erst nach Ende des UI-Thread zerst&#xf6;rt"/>
<node CREATED="1617459627675" ID="ID_1337959173" MODIFIED="1617459642132" TEXT="(solange das UI keine weiteren Threads verwendet sind wir sauber)"/>
</node>
<node CREATED="1617459659278" ID="ID_976541024" LINK="#ID_230224690" MODIFIED="1617459721740" TEXT="kann also bequem ein Lambda verwenden..."/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617377798336" ID="ID_1680080732" MODIFIED="1617377807908" TEXT="Signal-Callbacks anlegen">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1617471204921" ID="ID_1381735452" MODIFIED="1617471216758" TEXT="Vorl&#xe4;ufie Implementierung: Button-Click">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1617471543992" ID="ID_1461453973" MODIFIED="1617471552073" TEXT="auch noch die CommandID mit binden">
<icon BUILTIN="flag-yellow"/>
</node>
</node>
</node>
</node>
@ -54730,7 +54834,47 @@
<node CREATED="1614467221680" ID="ID_1190660197" MODIFIED="1614467233958" TEXT="alternativ kann man lambdas direkt anschlie&#xdf;en">
<node CREATED="1614467235118" ID="ID_1908157491" MODIFIED="1614467242637" TEXT="dann gibt es aber kein Tracking"/>
<node CREATED="1614467243390" ID="ID_162571863" MODIFIED="1614467252868" TEXT="se sei denn, man verwendet sigc::track_obj"/>
<node CREATED="1614467253912" ID="ID_230224690" LINK="https://developer.gnome.org/libsigc++/stable/group__track__obj.html" MODIFIED="1614467260623" TEXT="siehe Beispiel in der Doku"/>
<node CREATED="1614467253912" ID="ID_230224690" LINK="https://developer.gnome.org/libsigc++/stable/group__track__obj.html" MODIFIED="1617458023813" TEXT="siehe Beispiel in der Doku">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<div http-equiv="content-type" content="text/html; charset=utf-8" class="fragment">
<div class="line">
struct bar : public&#160;<a class="code" href="https://developer.gnome.org/libsigc++/stable/structsigc_1_1trackable.html">sigc::trackable</a>&#160;{};
</div>
<div class="line">
sigc::signal&lt;void()&gt; some_signal;
</div>
<div class="line">
void&#160;foo(bar&amp;);
</div>
<div class="line">
{
</div>
<div class="line">
bar some_bar;
</div>
<div class="line">
some_signal.connect([&amp;some_bar](){ foo(some_bar); });
</div>
<div class="line">
// NOT disconnected automatically when some_bar goes out of scope
</div>
<div class="line">
some_signal.connect(<a class="code" href="https://developer.gnome.org/libsigc++/stable/group__track__obj.html#ga7986f33675aec143d9afbfe968f1c7ba">sigc::track_obj</a>([&amp;some_bar](){ foo(some_bar); }, some_bar);
</div>
<div class="line">
// disconnected automatically when some_bar goes out of scope
</div>
<div class="line">
}
</div>
</div>
</body>
</html></richcontent>
</node>
</node>
</node>
</node>