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Clip-Drag: further investigation and clean-up

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Seems to work solid now, after switching to the root coordinates provided by GDK.
With local relative coordinates, the subject fidgets while being dragged,
for obvious reasons, since we're shifting the relative point of reference.

Also clarified a strange behaviour of the test drawing code:
Cairo is "turtle graphics", so we need to set the starting point explicitly.
This commit is contained in:
Fischlurch 2021-06-19 17:06:12 +02:00
parent b9657320ed
commit 5b1dfe4534
6 changed files with 311 additions and 60 deletions
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16
src/stage/interact/drag-relocate-controller.hpp
View file

@ -159,8 +159,8 @@ namespace interact {
return false; // Event not handled by this controller
REQUIRE (motion_event);
std::cerr << _Fmt{"MOVE x=%3.1f y=%3.1f subject=%s"}
% motion_event->x
% motion_event->y
% motion_event->x_root
% motion_event->y_root
% subject
<< std::endl;
if (not isAnchored())
@ -199,8 +199,8 @@ namespace interact {
{
REQUIRE (motion_event);
this->subject_ = & subject;
this->anchorX_ = motion_event->x;
this->anchorY_ = motion_event->y;
this->anchorX_ = motion_event->x_root;
this->anchorY_ = motion_event->y_root;
std::cerr << _Fmt{"ANCHOR at x=%3.1f y=%3.1f ('%s')"}
% anchorX_
% anchorY_
@ -211,8 +211,8 @@ namespace interact {
void
probeActivation (GdkEventMotion* motion_event)
{
isInFormation_ = DISTANCE_THRESHOLD < abs (motion_event->x - anchorX_)
or DISTANCE_THRESHOLD < abs (motion_event->y - anchorY_);
isInFormation_ = DISTANCE_THRESHOLD < abs (motion_event->x_root - anchorX_)
or DISTANCE_THRESHOLD < abs (motion_event->y_root - anchorY_);
}
void
@ -225,8 +225,8 @@ namespace interact {
doTrackGesture (GdkEventMotion* motion_event)
{
REQUIRE (motion_event);
gdouble deltaX = motion_event->x - this->anchorX_;
gdouble deltaY = motion_event->y - this->anchorY_;
gdouble deltaX = motion_event->x_root - this->anchorX_;
gdouble deltaY = motion_event->y_root - this->anchorY_;
// notify Subject to feed current delta
observer_->updateOffset (deltaX, deltaY);
}

3
src/stage/timeline/body-canvas-widget.cpp
View file

@ -436,7 +436,7 @@ namespace timeline {
// respond to any structure changes of the timeline by recomputing the TrackProfile
layout_.signalStructureChange_.connect (sigc::mem_fun (*this, &BodyCanvasWidget::slotStructureChange));
// access and possible (re)establish the current "profile" of the tracks on demand...
// on demand access and possible (re)establish the current "profile" of the tracks for drawing...
getProfile = [this]() -> TrackProfile&
{
maybeRebuildLayout();
@ -704,6 +704,7 @@ namespace timeline {
cox->set_source_rgb(0.2, 0.4, 0.9); // blue
cox->set_line_width (2.0);
cox->move_to(w, 0);
cox->arc(rad, rad, rad, 0.0, 2.0*M_PI); // full circle
cox->stroke();
/////////////////////////////////////////////TICKET #1039 : placeholder drawing

7
src/stage/timeline/clip-presenter.hpp
View file

@ -223,6 +223,7 @@ namespace timeline {
private:/* ===== Subject-Interface ===== */
/** @internal Adapter used while a dragging gesture is in formation */
class DragRelocateObserver
: public interact::GestureObserver
{
@ -240,8 +241,8 @@ namespace timeline {
% getCmdID()
% deltaX
% deltaY
% subject_.widget_->accessStartTime()
% oldTime_
% subject_.widget_->accessStartTime()
<< std::endl;
}
@ -285,10 +286,10 @@ namespace timeline {
* Whenever a new clip widget has been created, this function is also responsible
* for additional setup, and especially to enable the dragging gestures on this clip.
* @remark a typical example would be, when a clip's temporal position, previously unspecified,
* now becomes defined through a diff message. With this data, it becomes feasible
* now becomes defined through a diff message. With this data, it then would become feasible
* _actually to show the clip_ in the timeline. Thus the [Appearance style](\ref ClipDelegate::Appearance)
* of the presentation widget (delegate) can be switched up from `PENDING` to `ABRIDGED`.
* @note however this function is invoked from ctor and then serves to allocate the delegate initially.
* @note however this function is also invoked from ctor and then serves to allocate the delegate initially.
*/
void
establishAppearance(WidgetHook* newView =nullptr,

3
src/stage/timeline/timeline-layout.cpp
View file

@ -27,6 +27,9 @@
** @todo as of 10/2018 timeline display in the UI is rebuilt to match the architecture
** @todo WIP-WIP-WIP as of 12/2019
**
** @see track-body.cpp for mapping individual tracks onto the common canvas
** @see body-canvas-widget.cpp for painting track background and overlays
**
*/

4
src/stage/timeline/track-body.cpp
View file

@ -23,7 +23,9 @@
/** @file track-body.cpp
** Implementation details regarding display management of the
** track body area within the timeline display canvas.
** track body area within the timeline display canvas. Especially,
** this code handles the structuring of vertical space, and the way
** this vertical extension maps to specific tracks.
**
** @todo WIP-WIP-WIP as of 6/2019
**

338
wiki/thinkPad.ichthyo.mm
View file

@ -5297,8 +5297,8 @@
<linktarget COLOR="#f9b709" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-37;-88;" ID="Arrow_ID_779644313" SOURCE="ID_635303062" STARTARROW="None" STARTINCLINATION="-34;70;"/>
<linktarget COLOR="#6db0a6" DESTINATION="ID_330280074" ENDARROW="Default" ENDINCLINATION="-770;358;" ID="Arrow_ID_690602400" SOURCE="ID_1435888336" STARTARROW="None" STARTINCLINATION="1193;46;"/>
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942842294" ID="ID_1752483939" MODIFIED="1557498707218" TEXT="minimalen Diff f&#xfc;r eine Timeline">
<icon BUILTIN="hourglass"/>
<node COLOR="#338800" CREATED="1538942842294" ID="ID_1752483939" MODIFIED="1587220691511" TEXT="minimalen Diff f&#xfc;r eine Timeline">
<icon BUILTIN="button_ok"/>
<node COLOR="#338800" CREATED="1538942872402" ID="ID_932408081" MODIFIED="1561827464711" TEXT="Panel wird erzeugt">
<icon BUILTIN="button_ok"/>
<node CREATED="1553902314962" ID="ID_1100232681" MODIFIED="1553902322907" TEXT="vorl&#xe4;ufige Platzhalter-Implementierung"/>
@ -5352,24 +5352,24 @@
<node COLOR="#338800" CREATED="1538942878609" ID="ID_689625343" MODIFIED="1557498707218" TEXT="Timeline-Tab wird belegt">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942890792" ID="ID_642469734" MODIFIED="1557498707218" TEXT="hat einen Track">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1538942890792" ID="ID_642469734" MODIFIED="1587220691511" TEXT="hat einen Track">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538942901590" ID="ID_758238752" MODIFIED="1557498707218" TEXT="ein Clip erscheint">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1538942901590" ID="ID_758238752" MODIFIED="1587220691511" TEXT="ein Clip erscheint">
<icon BUILTIN="button_ok"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943061633" ID="ID_1972040317" MODIFIED="1557498707218" TEXT="minimale Feedback-Aktionen">
<icon BUILTIN="hourglass"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943095252" ID="ID_1784185766" MODIFIED="1557498707218" TEXT="drag clip">
<arrowlink COLOR="#fbd7b5" DESTINATION="ID_1472064878" ENDARROW="Default" ENDINCLINATION="-1443;-151;" ID="Arrow_ID_1918638969" STARTARROW="None" STARTINCLINATION="1644;332;"/>
<icon BUILTIN="hourglass"/>
<icon BUILTIN="pencil"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538943104651" ID="ID_948012732" MODIFIED="1557498707218" TEXT="delete clip">
<icon BUILTIN="hourglass"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525762357" ID="ID_401544840" MODIFIED="1557498707218" TEXT="Infrastruktur">
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525762357" ID="ID_401544840" MODIFIED="1557498707218" TEXT="Test-Infrastruktur">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1539525774683" ID="ID_800878475" MODIFIED="1557498707218" TEXT="neuer Tab im TestControl">
<icon BUILTIN="button_ok"/>
@ -5386,16 +5386,19 @@
<node COLOR="#338800" CREATED="1539564584429" ID="ID_1716609826" MODIFIED="1557498707218" TEXT="Root-Track">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539564589548" ID="ID_1561391207" MODIFIED="1557498707218" TEXT="zwei Clips darin">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1539564589548" ID="ID_1561391207" MODIFIED="1586612902058" TEXT="zwei Clips darin">
<icon BUILTIN="button_ok"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525933590" ID="ID_1481796996" MODIFIED="1557498707218" TEXT="Sequence-2">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1539525933590" ID="ID_1481796996" MODIFIED="1586612902609" TEXT="Sequence-2">
<icon BUILTIN="button_ok"/>
<node CREATED="1539525938045" ID="ID_940685408" MODIFIED="1557498707218" TEXT="komplex geschachtelt">
<icon BUILTIN="info"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624020679822" ID="ID_1951868587" MODIFIED="1624020697138" TEXT="mehrere Clips">
<icon BUILTIN="hourglass"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1539525972400" ID="ID_1975832820" MODIFIED="1557498707218" TEXT="Testdaten-Verwaltung">
@ -5476,13 +5479,25 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538939792267" ID="ID_1104238784" MODIFIED="1557498707218" TEXT="Pr&#xe4;sentation bauen">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_758873433" MODIFIED="1557498707218" TEXT="Layout-Control">
<arrowlink COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" STARTARROW="None" STARTINCLINATION="407;0;"/>
<arrowlink COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" STARTARROW="None" STARTINCLINATION="611;93;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1538940061190" ID="ID_1131206858" MODIFIED="1557498707218" 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;"/>
<arrowlink COLOR="#fec680" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_506785204" STARTARROW="None" STARTINCLINATION="368;125;"/>
<arrowlink COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1142;35;" ID="Arrow_ID_435369727" STARTARROW="None" STARTINCLINATION="394;108;"/>
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624027332115" ID="ID_1575894780" MODIFIED="1624028066164" TEXT="Fork-Heads darstellen">
<arrowlink COLOR="#fec680" DESTINATION="ID_530086217" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1923188182" STARTARROW="None" STARTINCLINATION="1147;124;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624027322054" ID="ID_416633797" MODIFIED="1624028079034" TEXT="Timeline-Canvas darstellen">
<arrowlink COLOR="#fec680" DESTINATION="ID_457526663" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1979848335" STARTARROW="None" STARTINCLINATION="709;70;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624027591203" ID="ID_632606530" MODIFIED="1624028073500" TEXT="Clips darstellen">
<arrowlink COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1799878244" STARTARROW="None" STARTINCLINATION="933;139;"/>
<icon BUILTIN="flag-yellow"/>
</node>
</node>
</node>
</node>
@ -17863,7 +17878,7 @@
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1612621029065" TEXT="ElementBoxWidget">
<linktarget COLOR="#f6cca4" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-599;39;" ID="Arrow_ID_1199047781" SOURCE="ID_1032237384" STARTARROW="None" STARTINCLINATION="-698;-271;"/>
<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="#844764" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" SOURCE="ID_485594461" STARTARROW="None" STARTINCLINATION="-1661;146;"/>
<linktarget COLOR="#844764" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" SOURCE="ID_485594461" STARTARROW="None" STARTINCLINATION="-1673;136;"/>
<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
<icon BUILTIN="yes"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541095743511" ID="ID_96949358" MODIFIED="1557498707223" TEXT="#1185 ElementBoxWidget">
@ -20927,7 +20942,7 @@
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_562532566" MODIFIED="1557498707226" 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;"/>
<linktarget COLOR="#fec680" DESTINATION="ID_562532566" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_130009025" SOURCE="ID_758873433" STARTARROW="None" STARTINCLINATION="611;93;"/>
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1561898858814" HGAP="-12" ID="ID_1456175251" MODIFIED="1561899077764" TEXT="Bedeutung" VSHIFT="-21">
<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
@ -23856,7 +23871,7 @@
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1999928728" MODIFIED="1557498707227" 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="#fec680" DESTINATION="ID_1999928728" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_506785204" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="368;125;"/>
<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="1557498707227" TEXT="Kopf">
@ -23975,6 +23990,7 @@
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469620357" ID="ID_530086217" MODIFIED="1566956124941" TEXT="Fork-Anzeige passend malen">
<linktarget COLOR="#fec680" DESTINATION="ID_530086217" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1923188182" SOURCE="ID_1575894780" STARTARROW="None" STARTINCLINATION="1147;124;"/>
<linktarget COLOR="#b74f6e" DESTINATION="ID_530086217" ENDARROW="Default" ENDINCLINATION="276;749;" ID="Arrow_ID_614998223" SOURCE="ID_1366095324" STARTARROW="None" STARTINCLINATION="644;37;"/>
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1563469686644" ID="ID_467394520" MODIFIED="1563469732788" TEXT="gar nicht wenn es nur einen Kind-Track gibt">
@ -25951,7 +25967,9 @@
</node>
</node>
</node>
<node CREATED="1541861473496" ID="ID_457526663" MODIFIED="1557498707230" TEXT="draw">
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1541861473496" ID="ID_457526663" MODIFIED="1624028079034" TEXT="draw">
<linktarget COLOR="#fec680" DESTINATION="ID_457526663" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1979848335" SOURCE="ID_416633797" STARTARROW="None" STARTINCLINATION="709;70;"/>
<icon BUILTIN="pencil"/>
<node CREATED="1542309666407" ID="ID_1721729181" MODIFIED="1557498707230" TEXT="initial....">
<node CREATED="1542309671333" ID="ID_1283622298" MODIFIED="1557498707230" TEXT="Gr&#xf6;&#xdf;e des leeren Canvas">
<arrowlink COLOR="#60749f" DESTINATION="ID_400560063" ENDARROW="Default" ENDINCLINATION="-46;0;" ID="Arrow_ID_449772156" STARTARROW="None" STARTINCLINATION="-13;18;"/>
@ -28800,7 +28818,7 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1611479345795" HGAP="88" ID="ID_1289774279" MODIFIED="1611492845512" STYLE="bubble" TEXT="ein funktionsf&#xe4;higes Clip-Widget..." VSHIFT="-7">
<edge COLOR="#fad1c1"/>
<icon BUILTIN="full-2"/>
<node CREATED="1611540326300" ID="ID_126501533" MODIFIED="1611540332119" TEXT="Clip erscheint">
<node COLOR="#435e98" CREATED="1611540326300" ID="ID_126501533" MODIFIED="1624027187371" TEXT="Clip erscheint">
<icon BUILTIN="idea"/>
</node>
</node>
@ -29508,8 +29526,9 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1240926804" MODIFIED="1557498707230" 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;"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480694550601" ID="ID_1240926804" MODIFIED="1557498707230" TEXT="Clip-Anzeige">
<linktarget COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1142;35;" ID="Arrow_ID_435369727" SOURCE="ID_1131206858" STARTARROW="None" STARTINCLINATION="394;108;"/>
<linktarget COLOR="#fec680" DESTINATION="ID_1240926804" ENDARROW="Default" ENDINCLINATION="-1077;-98;" ID="Arrow_ID_1799878244" SOURCE="ID_632606530" STARTARROW="None" STARTINCLINATION="933;139;"/>
<icon BUILTIN="flag-yellow"/>
<node CREATED="1541095839946" ID="ID_471098853" MODIFIED="1557498707231" TEXT="Anzeigestil">
<linktarget COLOR="#50457a" DESTINATION="ID_471098853" ENDARROW="Default" ENDINCLINATION="-144;-446;" ID="Arrow_ID_49809880" SOURCE="ID_682261661" STARTARROW="None" STARTINCLINATION="-439;32;"/>
@ -30111,7 +30130,7 @@
<icon BUILTIN="hourglass"/>
<node CREATED="1583678167438" ID="ID_342453194" MODIFIED="1583678173531" TEXT="vereinfachte Darstellung"/>
<node CREATED="1583678176917" ID="ID_1637892152" MODIFIED="1583678182657" TEXT="Vorstufe f&#xfc;r &quot;abridged&quot;"/>
<node CREATED="1612620756065" ID="ID_485594461" MODIFIED="1612621029065" TEXT="EventBoxWidget verwenden....">
<node CREATED="1612620756065" ID="ID_485594461" MODIFIED="1612621029065" TEXT="ElementBoxWidget verwenden....">
<richcontent TYPE="NOTE"><html>
<head>
@ -30122,7 +30141,8 @@
</p>
</body>
</html></richcontent>
<arrowlink COLOR="#844764" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" STARTARROW="None" STARTINCLINATION="-1661;146;"/>
<arrowlink COLOR="#844764" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" STARTARROW="None" STARTINCLINATION="-1673;136;"/>
<linktarget COLOR="#5a3557" DESTINATION="ID_485594461" ENDARROW="Default" ENDINCLINATION="872;71;" ID="Arrow_ID_1204090343" SOURCE="ID_474563596" STARTARROW="None" STARTINCLINATION="2236;101;"/>
</node>
</node>
<node CREATED="1583678206105" ID="ID_1843404430" MODIFIED="1583678219642" TEXT="Stufe-3">
@ -31668,6 +31688,7 @@
</body>
</html></richcontent>
</node>
<node CREATED="1624022146150" ID="ID_76300118" MODIFIED="1624022166911" TEXT="daneben viel zu generischer low-Level Gesten-Controller"/>
<node CREATED="1613334362547" ID="ID_894562756" MODIFIED="1613334386083" TEXT="andere Gesten sind im Einzelwidget implementiert"/>
</node>
<node CREATED="1613334402564" ID="ID_1103909311" MODIFIED="1613349184568" TEXT="wir m&#xfc;ssen lauter dezentrale Einstiegspunkte bauen">
@ -32260,7 +32281,7 @@
</head>
<body>
<p>
...d.h. es w&#228;re zu vermeiden, da&#223; ein irgendwo vorgegebenes Konfigurations-Setup an anderer Stelle im Code noch passend verankert oder korrespondieren eingerichtet werden mu&#223;.<br /><br />Konkret: die drag-F&#228;higkeit eines Clip wird konfiguriert im Clip-Presenter. Fertig.
...d.h. es w&#228;re zu vermeiden, da&#223; ein irgendwo vorgegebenes Konfigurations-Setup an anderer Stelle im Code noch passend verankert oder korrespondierend eingerichtet werden mu&#223;.<br /><br />Konkret: die drag-F&#228;higkeit eines Clip wird konfiguriert im Clip-Presenter. Fertig.
</p>
</body>
</html></richcontent>
@ -32845,8 +32866,8 @@
<node CREATED="1619881405244" ID="ID_1235657284" MODIFIED="1619881421990" TEXT="das passiert dann aber alles bereits im Subject"/>
<node CREATED="1619882166616" ID="ID_1792609740" MODIFIED="1619882178102" TEXT="Subject::gestureOffset(cmd, deltaX, deltaY)"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1618672732077" ID="ID_949915263" MODIFIED="1619882205422" TEXT="Logik zur Positions-&#xdc;bersetzung">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1618672732077" ID="ID_949915263" MODIFIED="1624113877375" TEXT="Logik zur Positions-&#xdc;bersetzung">
<icon BUILTIN="button_ok"/>
<node CREATED="1618676950908" ID="ID_69237451" MODIFIED="1618677116146" TEXT="hier deutet sich ein mehrstufiger Ansatz an">
<richcontent TYPE="NOTE"><html>
<head>
@ -32871,9 +32892,10 @@
</body>
</html></richcontent>
</node>
<node CREATED="1618752912540" ID="ID_709707680" MODIFIED="1618752978056" TEXT="konkrete Schwierigkeiten f&#xfc;r den Clip">
<node COLOR="#435e98" CREATED="1618752912540" FOLDED="true" ID="ID_709707680" MODIFIED="1624114454822" TEXT="konkrete Schwierigkeiten f&#xfc;r den Clip">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1618752984873" ID="ID_126063856" MODIFIED="1618753010634" TEXT="mu&#xdf; ein Delta in ein Zeit-Delta &#xfc;bersetzen">
<node COLOR="#338800" CREATED="1618752984873" ID="ID_126063856" MODIFIED="1624113957884" TEXT="mu&#xdf; ein Delta in ein Zeit-Delta &#xfc;bersetzen">
<icon BUILTIN="button_ok"/>
<node CREATED="1618753017759" ID="ID_1766339786" MODIFIED="1618753019825" TEXT="gegeben">
<node CREATED="1618753020812" ID="ID_958370173" MODIFIED="1618753025665" TEXT="eine Basis-Zeit"/>
<node CREATED="1618753026451" ID="ID_1831542689" MODIFIED="1618753035110" TEXT="ein Delta in UI-Koordinaten"/>
@ -32884,6 +32906,8 @@
<node CREATED="1618778672386" ID="ID_1242087872" MODIFIED="1618778698205" TEXT="Bisher in BodyCanvasWidget angelegt">
<icon BUILTIN="idea"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1618778688276" ID="ID_1895003083" MODIFIED="1618778695704" TEXT="aber &#xfc;berhaupt noch nicht implementiert">
<arrowlink COLOR="#fe576f" DESTINATION="ID_400013153" ENDARROW="Default" ENDINCLINATION="2435;0;" ID="Arrow_ID_858529243" STARTARROW="None" STARTINCLINATION="240;261;"/>
<linktarget COLOR="#fdd8c6" DESTINATION="ID_1895003083" ENDARROW="Default" ENDINCLINATION="-729;49;" ID="Arrow_ID_547396305" SOURCE="ID_783305795" STARTARROW="None" STARTINCLINATION="218;15;"/>
<icon BUILTIN="hourglass"/>
<node CREATED="1620922762073" ID="ID_878659189" MODIFIED="1620922781290" TEXT="vorl&#xe4;ufige Dummy-Implementierung in TimelineLayout"/>
<node CREATED="1620922782734" ID="ID_1695744984" MODIFIED="1620922815553">
@ -33215,6 +33239,7 @@
<icon BUILTIN="forward"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1619698722008" FOLDED="true" ID="ID_755674225" MODIFIED="1619804539751" TEXT="wird (parametrisierbare) Komponente im LayoutManager">
<arrowlink COLOR="#fe576f" DESTINATION="ID_400013153" ENDARROW="Default" ENDINCLINATION="2062;0;" ID="Arrow_ID_920475961" STARTARROW="None" STARTINCLINATION="160;125;"/>
<icon BUILTIN="bell"/>
<node CREATED="1619804516182" ID="ID_303795305" MODIFIED="1619804534566" TEXT="vorl&#xe4;ufige Dummy-Implementierung">
<icon BUILTIN="idea"/>
@ -33227,21 +33252,48 @@
</node>
</node>
</node>
<node CREATED="1619132645927" ID="ID_3614055" MODIFIED="1619696704275" TEXT="Umgang mit Zeit-Werten (immutable)">
<node COLOR="#435e98" CREATED="1619132645927" ID="ID_3614055" MODIFIED="1624023436030" TEXT="Umgang mit Zeit-Werten (immutable)">
<icon BUILTIN="messagebox_warning"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1620913903207" ID="ID_236784465" MODIFIED="1620913912953" TEXT="L&#xf6;sung time::Control (Mutator)">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#990000" CREATED="1620913903207" ID="ID_236784465" MODIFIED="1624023359388" TEXT="L&#xf6;sung time::Control (Mutator)">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
das time::Control lebt dann wohl im Observer, und dieser mu&#223; eine Schnittstelle haben, &#252;ber die das time::Control auf das eigentliche Zielfeld gesetzt wird...<br /><br />...das klingt alles gef&#228;hrlich indirekt...
</p>
</body>
</html></richcontent>
<icon BUILTIN="stop-sign"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1620917838309" ID="ID_1646116499" MODIFIED="1620917859760" TEXT="das time::Control lebt dann wohl im Observer">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#435e98" CREATED="1624023373631" ID="ID_145048922" MODIFIED="1624023427379" TEXT="besser TimeVar im Gui-Modell (=Widget) verwenden">
<arrowlink COLOR="#5488c6" DESTINATION="ID_504607651" ENDARROW="Default" ENDINCLINATION="471;-37;" ID="Arrow_ID_952881957" STARTARROW="None" STARTINCLINATION="311;17;"/>
<icon BUILTIN="yes"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1618753085285" ID="ID_560686142" MODIFIED="1618753216324" TEXT="noch keinerlei Infrastruktur f&#xfc;r die vertikale Anordnung">
<linktarget COLOR="#fdd8c6" DESTINATION="ID_560686142" ENDARROW="Default" ENDINCLINATION="-13;13;" ID="Arrow_ID_1300202813" SOURCE="ID_783305795" STARTARROW="None" STARTINCLINATION="150;10;"/>
<icon BUILTIN="hourglass"/>
<node CREATED="1618753226088" ID="ID_338199340" MODIFIED="1618753660191" TEXT="die notwendigen Daten k&#xf6;nnen aus dem TrackPofil abgeleitet werden"/>
<node CREATED="1618753661418" ID="ID_1032426032" MODIFIED="1618753679006" TEXT="der TrackBody hat eine startLine_"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624113834120" ID="ID_783305795" MODIFIED="1624114136410">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
Stand: funktioniert &#8213; ist aber <i>halbfertig</i>
</p>
</body>
</html></richcontent>
<arrowlink COLOR="#fdd8c6" DESTINATION="ID_1895003083" ENDARROW="Default" ENDINCLINATION="-729;49;" ID="Arrow_ID_547396305" STARTARROW="None" STARTINCLINATION="218;15;"/>
<arrowlink COLOR="#fdd8c6" DESTINATION="ID_560686142" ENDARROW="Default" ENDINCLINATION="-13;13;" ID="Arrow_ID_1300202813" STARTARROW="None" STARTINCLINATION="150;10;"/>
<icon BUILTIN="bell"/>
</node>
</node>
<node COLOR="#338800" CREATED="1618672754370" ID="ID_1707555267" MODIFIED="1618678693304" TEXT="Deta ermitteln und speichern">
<icon BUILTIN="button_ok"/>
@ -33284,8 +33336,8 @@
<icon BUILTIN="bell"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1618672778615" ID="ID_623020020" MODIFIED="1618681177621" TEXT="Position aktualisieren">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1618672778615" ID="ID_623020020" MODIFIED="1624113806456" TEXT="Position aktualisieren">
<icon BUILTIN="button_ok"/>
<node CREATED="1618681116488" ID="ID_1434451478" MODIFIED="1618681123602" TEXT="Daten an das Subject weitergeben"/>
<node COLOR="#435e98" CREATED="1618681157532" ID="ID_905364501" MODIFIED="1618690878227" TEXT="Gestenerkennungs-Logik funktioniert noch nicht">
<richcontent TYPE="NOTE"><html>
@ -33442,7 +33494,7 @@
</head>
<body>
<p>
...sonst w&#252;rde entweder das Subject selber ad hoc etwas bereitstellen m&#252;ssen und daf&#252;r zus&#228;tzliche Storage brauchen (<b>Hebel</b>, es gibt sehr viele Subjekte!), oder das Interface &quot;Subject&quot; w&#252;rde l&#246;chrigt und zu einer Kodifizierung von Einzelf&#228;llen. Die L&#246;sung mit dem Adapter stattdessen f&#228;llt unter das Prinzip <i>Inversion of Control</i>
...sonst w&#252;rde entweder das Subject selber ad hoc etwas bereitstellen m&#252;ssen und daf&#252;r zus&#228;tzliche Storage brauchen (<b>Hebel</b>, es gibt sehr viele Subjekte!), oder das Interface &quot;Subject&quot; w&#252;rde l&#246;chrig und zu einer Kodifizierung von Einzelf&#228;llen. Die L&#246;sung mit dem Adapter stattdessen f&#228;llt unter das Prinzip <i>Inversion of Control</i>
</p>
</body>
</html></richcontent>
@ -33671,6 +33723,7 @@
<icon BUILTIN="idea"/>
<node CREATED="1621011078108" ID="ID_1533766777" MODIFIED="1621011080673" TEXT="macht Sinn"/>
<node CREATED="1621011195716" ID="ID_504607651" MODIFIED="1621011206066" TEXT="hier brauchen wir kein time::Control">
<linktarget COLOR="#5488c6" DESTINATION="ID_504607651" ENDARROW="Default" ENDINCLINATION="471;-37;" ID="Arrow_ID_952881957" SOURCE="ID_145048922" STARTARROW="None" STARTINCLINATION="311;17;"/>
<icon BUILTIN="yes"/>
</node>
<node CREATED="1621011209299" ID="ID_26838929" MODIFIED="1621011219916" TEXT="Quantisierung passiert bereits im Session-Modell"/>
@ -33701,19 +33754,34 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621013334938" ID="ID_492704684" MODIFIED="1621013457226" TEXT="Metrik korrekt &#xfc;bersetzen">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621013341929" ID="ID_417943116" MODIFIED="1621013379533" TEXT="Clip ist nicht an der Maus-Position">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621013385355" ID="ID_1141346152" MODIFIED="1621013452506" TEXT="sondern etwa nur das halbe Delta">
<node COLOR="#338800" CREATED="1621013334938" ID="ID_492704684" MODIFIED="1621097715872" TEXT="Metrik korrekt &#xfc;bersetzen">
<icon BUILTIN="button_ok"/>
<node COLOR="#338800" CREATED="1621013341929" ID="ID_417943116" MODIFIED="1621097397187" TEXT="Clip ist nicht an der Maus-Position">
<icon BUILTIN="button_ok"/>
<node COLOR="#435e98" CREATED="1621013385355" ID="ID_1141346152" MODIFIED="1621097399578" TEXT="sondern etwa nur das halbe Delta">
<icon BUILTIN="broken-line"/>
</node>
<node CREATED="1621013395618" ID="ID_671218820" MODIFIED="1621013523662" TEXT="dh. Canvas-Pixel &#x2260; GDK-Pixel">
<node COLOR="#435e98" CREATED="1621013395618" ID="ID_671218820" MODIFIED="1621097408033" TEXT="dh. Canvas-Pixel &#x2260; GDK-Pixel">
<arrowlink COLOR="#de5c6e" DESTINATION="ID_1862152665" ENDARROW="Default" ENDINCLINATION="139;212;" ID="Arrow_ID_1129738995" STARTARROW="None" STARTINCLINATION="686;61;"/>
<icon BUILTIN="messagebox_warning"/>
<node COLOR="#5e4398" CREATED="1621097410434" HGAP="30" ID="ID_222549022" MODIFIED="1621097540645" TEXT="nein: es ist exakt" VSHIFT="-6">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
sobald man globale Screen-Koordinaten f&#252;r die Delta-Berechnung verwendet; der Button <i>klebt jetzt exakt </i>an der Stelle, an der zuerst geklickt wurde
</p>
</body>
</html></richcontent>
<edge COLOR="#c0709e"/>
<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
<icon BUILTIN="ksmiletris"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621013349165" ID="ID_1048588084" MODIFIED="1621013380765">
</node>
<node COLOR="#338800" CREATED="1621013349165" ID="ID_1048588084" MODIFIED="1621097392781">
<richcontent TYPE="NODE"><html>
<head>
@ -33724,10 +33792,165 @@
</p>
</body>
</html></richcontent>
<icon BUILTIN="button_ok"/>
<node CREATED="1621021141659" ID="ID_1023253092" MODIFIED="1621021229959" TEXT="Vermutung: weil GDK die Maus-Koordinaten relativ zum GDK-window liefert">
<icon BUILTIN="idea"/>
<node CREATED="1621021182357" ID="ID_22597166" MODIFIED="1621021189124" TEXT="und das Window verschieben wir ja nun"/>
<node CREATED="1621021241365" ID="ID_426282812" MODIFIED="1621021322131" TEXT="Beobachtung: erst wenn wir verschieben, springen die Koordinaten alternierend">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...bevor die Trigger-Schwelle erreicht ist, wachsen sie sch&#246;n monoton<br />...auch ist das Springen exakt alternierend, ein Schritt vor, ein Schritt zur&#252;ck
</p>
</body>
</html></richcontent>
</node>
</node>
<node COLOR="#990000" CREATED="1621095826074" ID="ID_68931867" MODIFIED="1621097299895" TEXT="Aufgabe: den Anker-Punkt korrigieren">
<icon BUILTIN="button_cancel"/>
<node CREATED="1621095839443" ID="ID_995526022" MODIFIED="1621095889081" TEXT="Begr&#xfc;ndung: das Delta sollte im Gesten-Controller bereinigt werden">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
aber das von GDK gelieferte Delta h&#228;ngt eben vom GDK-Window des widgets ab
</p>
</body>
</html></richcontent>
<icon BUILTIN="yes"/>
</node>
<node CREATED="1621096361136" ID="ID_1786120643" MODIFIED="1621096366693" TEXT="Gdk::Window::get_root_origin">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1621096851542" ID="ID_1348295641" MODIFIED="1621096876772" TEXT="Ha! das _GdkEventMotion liefert das GDK-Window mit">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1621096924735" ID="ID_1758702106" MODIFIED="1621096946994" TEXT="Ha&#xb2; !! sogar die absoluten Koordinaten werden geliefert">
<icon BUILTIN="idea"/>
</node>
</node>
<node COLOR="#338800" CREATED="1621097276187" ID="ID_728413168" MODIFIED="1621097289156" TEXT="also stattdessen gleich die absoluten Koordinaten verwenden und gut is">
<icon BUILTIN="button_ok"/>
</node>
</node>
<node COLOR="#338800" CREATED="1621013468896" ID="ID_129803095" MODIFIED="1621097712197" TEXT="pr&#xfc;fen: Anzeigegrenzen?">
<icon BUILTIN="button_ok"/>
<node COLOR="#435e98" CREATED="1621097549712" ID="ID_428075392" MODIFIED="1621097591467" TEXT="nach Umstellung auf Root-Koordinaten: Dragging st&#xf6;&#xdf;t einfach an den Fensterr&#xe4;ndern an"/>
<node COLOR="#435e98" CREATED="1621097633428" ID="ID_1248069599" MODIFIED="1621097643755" TEXT="let&apos;s keep it that way!">
<icon BUILTIN="yes"/>
<node CREATED="1621097661601" ID="ID_1771351130" MODIFIED="1621097708271">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
der Gesten-Controller sollte hier nicht mitmischen
</p>
</body>
</html></richcontent>
<icon BUILTIN="stop-sign"/>
</node>
<node CREATED="1621097664561" ID="ID_1891416270" MODIFIED="1621097705220" TEXT="das Subject k&#xf6;nnte eine Beschr&#xe4;nkung durchsetzen">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1621097686285" ID="ID_1677326508" MODIFIED="1621097701987" TEXT="aber besser, das wird in der Session gehandhabt">
<icon BUILTIN="yes"/>
</node>
</node>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621096649593" ID="ID_316242168" MODIFIED="1621096653418" TEXT="Erg&#xe4;nzungen">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621096654578" ID="ID_95750773" MODIFIED="1621097327222" TEXT="geht das mit allen Maus-Buttons?">
<icon BUILTIN="help"/>
<node CREATED="1621096664860" ID="ID_957867261" MODIFIED="1624106696252" TEXT="verwende einen GTK::Button">
<icon BUILTIN="button_cancel"/>
<node CREATED="1621096673590" ID="ID_30538599" MODIFIED="1624106725084" TEXT="damit geht es nur im Moment mit Mittel-/Links-Button">
<icon BUILTIN="messagebox_warning"/>
</node>
<node CREATED="1621096684820" ID="ID_1886922228" LINK="https://stackoverflow.com/a/50127393" MODIFIED="1621096704345" TEXT="Hinweis auf Stackoverflow">
<node CREATED="1621096710666" ID="ID_482262631" MODIFIED="1621096715535" TEXT="demnach brauchen wir auch noch ButtonPressMask"/>
<node CREATED="1624106133858" ID="ID_576015548" MODIFIED="1624106184939" TEXT="pa&#xdf;t nicht wirklich &#x2015; wir m&#xfc;ssen gar keine Events mer Mask freischalten">
<node CREATED="1624106186082" ID="ID_1560334421" MODIFIED="1624106199075" TEXT="GTKmm macht diese low-level-Verdrahtung"/>
<node CREATED="1624106199862" ID="ID_737437905" MODIFIED="1624106225480" TEXT="und zwar bereits korrekt, denn wir bekommen die motion_notify-Events"/>
</node>
</node>
<node CREATED="1624106236054" ID="ID_859963027" MODIFIED="1624106261516" TEXT="ich glaube ehr, es liegt an dem Button, der bereits die linke Taste &quot;greift&quot;"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1624106269815" ID="ID_474563596" MODIFIED="1624106692190" TEXT="stattdessen k&#xf6;nnte man schon mal das EventBoxWidget anlegen">
<arrowlink COLOR="#5a3557" DESTINATION="ID_485594461" ENDARROW="Default" ENDINCLINATION="872;71;" ID="Arrow_ID_1204090343" STARTARROW="None" STARTINCLINATION="2236;101;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1621013468896" ID="ID_129803095" MODIFIED="1621013477775" TEXT="pr&#xfc;fen: Anzeigegrenzen?">
<icon BUILTIN="flag-yellow"/>
</node>
<node COLOR="#338800" CREATED="1621097334389" ID="ID_37937061" MODIFIED="1624113776851" TEXT="k&#xe4;ren: woher kommt die blaue Linie im Canvas, die mit Clip-2 mitwandert?">
<icon BUILTIN="button_ok"/>
<node CREATED="1624112312302" ID="ID_527659472" MODIFIED="1624112345913" TEXT="Genese unklar"/>
<node CREATED="1624112346753" ID="ID_1577761232" MODIFIED="1624112350129" TEXT="Beobachtungen">
<node CREATED="1624112351401" ID="ID_1554867729" MODIFIED="1624112475687" TEXT="h&#xe4;ngt ab vom Test-zeichen-Code in TimelineCanvas::drawOverlays(cox)">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...dieser zeichnet die Kreise mit Ausdehnung der Allocation, und auch genau mit dieser Farbe und Linienbreite
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1624112476928" ID="ID_10007256" MODIFIED="1624112497845" TEXT="aber allem Anschein nach handelt es sich um eine Linie, nicht um einen Kreisbogen (arc)"/>
<node CREATED="1624112504484" ID="ID_585066990" MODIFIED="1624112524179" TEXT="deaktivieren der anderen Test-zeichen-Funktion (Grounding) beweirkt nichts"/>
<node CREATED="1624112533168" ID="ID_1573289000" MODIFIED="1624113075023" TEXT="der berechnete Radius ist stets konsistent und variiert nicht, wenn man den Clip verschiebt">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
ein cout in genau diesem Testcode gibt stets nur alternierend den Allocation-Wert f&#252;r den Ruler-Canvas (konstant 5px) und dann den Main-Canvas (variiert mit Fensterh&#246;he) aus
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1624112560412" ID="ID_38361266" MODIFIED="1624112583301" TEXT="die Linie geht vom Ende des Kreises zum Anfang des Textes des zuletzt hinzugef&#xfc;gten Clip"/>
<node CREATED="1624113091220" ID="ID_522586131" MODIFIED="1624113111062" TEXT="die Linie wird nicht gezeichnet, wenn die arc(..)-Funktion nicht aufgerufen wird"/>
<node CREATED="1624113113393" ID="ID_666334880" MODIFIED="1624113134403" TEXT="Auskommentieren aller anderen Zeichenfunktionen in der Codebasis &#xe4;ndert nichts"/>
</node>
<node COLOR="#435e98" CREATED="1624113136798" ID="ID_705175220" MODIFIED="1624113773596" TEXT="&#x27f9; Schlu&#xdf;folgerung">
<arrowlink COLOR="#6980d1" DESTINATION="ID_727104900" ENDARROW="Default" ENDINCLINATION="-1870;290;" ID="Arrow_ID_1515795020" STARTARROW="None" STARTINCLINATION="-2646;354;"/>
<node CREATED="1624113167761" ID="ID_1626319182" MODIFIED="1624113229429" TEXT="Cairo zeichnet eine Linienfolge"/>
<node CREATED="1624113230924" ID="ID_391833497" MODIFIED="1624113256653">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
jede Zeichen-Primitive zeichnet von der <i>aktuellen Position</i>&#160;weg
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1624113257517" ID="ID_70759730" MODIFIED="1624113272119" TEXT="diese mu&#xdf; man mit move_to explizit setzen"/>
<node CREATED="1624113272939" ID="ID_318150010" MODIFIED="1624113302609">
<richcontent TYPE="NODE"><html>
<head>
</head>
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<p>
sonst <b>verschleppt</b>&#160;man eine <b>zuf&#228;llig</b>&#160;vorher gegebene Position
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