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Clip: investigate how to enforce a fixed horizontal extension

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GTK doesn't expose a first-class API for this,
since -- by design -- the extension of a widget is negotiated.
Thus I'm looking for some kind of workaround for our specific use-case,
where a clip widget must be rendered with a well defined horizontal size,
corresponding to its length.

Thus far, we're only able to increase the size of the Button widget
used as placeholder, but we can not forcibly shrink that button,
probably because the embedded Gtk::Lable requires additional extension.
This commit is contained in:
Fischlurch 2021-02-05 00:21:08 +01:00
parent 5570850377
commit 453ee08803
8 changed files with 193 additions and 23 deletions
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4
src/stage/model/canvas-hook.hpp
View file

@ -63,6 +63,7 @@ namespace stage {
namespace model {
using lib::time::Time;
using lib::time::TimeValue;
@ -117,9 +118,8 @@ namespace model {
return hookedAt (translateTimeToPixels (start), downshift);
}
protected:
/** extension point for time axis zoom management. */
virtual int translateTimeToPixels (Time) const =0;
virtual int translateTimeToPixels (TimeValue) const =0;
};

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

@ -64,6 +64,7 @@
//using util::_Fmt;
using lib::time::Time;
using util::max;
using util::isnil;
//using util::contains;
@ -576,7 +577,7 @@ namespace timeline {
}
int
BodyCanvasWidget::translateTimeToPixels (Time startTimePoint) const
BodyCanvasWidget::translateTimeToPixels (TimeValue startTimePoint) const
{
return _raw(startTimePoint) * TODO_px_per_second / Time::SCALE; //////////TICKET #1213 : delegate zoom handling to the display manager (field #layout_) !!
}

4
src/stage/timeline/body-canvas-widget.hpp
View file

@ -90,7 +90,7 @@
namespace stage {
namespace timeline {
using lib::time::Time;
using lib::time::TimeValue;
using CairoC = Cairo::RefPtr<Cairo::Context> const&;
@ -177,7 +177,7 @@ namespace timeline {
void move (Gtk::Widget&, int xPos, int yPos) override;
void remove (Gtk::Widget&) override;
int translateTimeToPixels (Time) const override;
int translateTimeToPixels (TimeValue) const override;
protected: /* ==== Interface: LayoutElement ===== */

33
src/stage/timeline/clip-widget.cpp
View file

@ -152,8 +152,7 @@ namespace timeline {
TimeVar start_;
TimeVar len_;
/* === Partial implementation of ClipDelegate === */
public: /* === Partial implementation of ClipDelegate === */
Time
getStartTime() const override
{
@ -318,6 +317,13 @@ namespace timeline {
return HookedWidget::getCanvas();
}
void
changeTiming (TimeSpan changedTimings) override
{
ClipData::changeTiming (changedTimings);
establishHorizontalExtension();
}
void
updatePosition() override
{
@ -325,12 +331,34 @@ namespace timeline {
this->moveTo (nominalPos.x, nominalPos.y);
}
/* ==== Size and Layout handling ==== */
/** */
void
establishHorizontalExtension()
{
int hSize = getCanvas().translateTimeToPixels (getLen());
set_size_request (hSize, -1);
queue_resize();
}
/** @todo preliminary / draft of a clip widget, just using a Gtk::Button.
* @note Gtk assumes no fixed size, but a size negotiation.
*/
Gtk::SizeRequestMode
get_request_mode_vfunc() const override
{
return Gtk::SizeRequestMode::SIZE_REQUEST_CONSTANT_SIZE;
// return Gtk::SizeRequestMode::SIZE_REQUEST_HEIGHT_FOR_WIDTH;
}
public:
ClipWidget(WidgetHook::Pos hookPoint, TimeSpan const& timings, uString clipName)
: HookedWidget{hookPoint, clipName}
, ClipData{timings}
{
establishHorizontalExtension();
show_all();
}
@ -339,6 +367,7 @@ namespace timeline {
: HookedWidget{existing.establishHookPoint(newView), existing.getClipName()}
, ClipData{std::move (existing)}
{
establishHorizontalExtension();
show_all();
}
};

6
src/stage/timeline/display-manager.hpp
View file

@ -87,7 +87,7 @@ namespace timeline {
using util::max;
using lib::time::Time;
using lib::time::TimeValue;
class TrackHeadWidget;
class TrackBody;
@ -136,9 +136,9 @@ namespace timeline {
/** delegating default implementation for timeline zoom */
int
translateTimeToPixels (Time startTimePoint) const override
translateTimeToPixels (TimeValue startTimePoint) const override
{
return refHook_.hookedAt(startTimePoint).x;
return refHook_.translateTimeToPixels (startTimePoint);
}
public:

2
src/steam/mobject/session/dummy-session-connection.cpp
View file

@ -182,7 +182,7 @@ namespace session {
, emu (clip1)
, mut (clip2)
, ins (makeName(clip2))
, ins (defineTiming(Time{FSecs{5}}, Duration{FSecs{2}}))
, ins (defineTiming(Time{FSecs{5}}, Duration{FSecs{1,2}}))
, emu (clip2)
, emu (forkRoot)
, emu (timeline)

2
tests/stage/model/canvas-hook-test.cpp
View file

@ -152,7 +152,7 @@ namespace test {
protected:
int
translateTimeToPixels (Time) const override
translateTimeToPixels (TimeValue) const override
{
NOTREACHED ("Time to pixel translation not covered in this unit test");
return -1;

162
wiki/thinkPad.ichthyo.mm
View file

@ -12619,7 +12619,7 @@
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1506175097367" ID="ID_1442345755" MODIFIED="1561827465011" TEXT="ViewSpec-DSL">
<arrowlink COLOR="#b45c5a" DESTINATION="ID_686917529" ENDARROW="Default" ENDINCLINATION="-468;-196;" ID="Arrow_ID_1955094318" STARTARROW="None" STARTINCLINATION="360;85;"/>
<linktarget COLOR="#6a8499" DESTINATION="ID_1442345755" ENDARROW="Default" ENDINCLINATION="-971;84;" ID="Arrow_ID_1191206769" SOURCE="ID_1844877136" STARTARROW="None" STARTINCLINATION="502;0;"/>
<linktarget COLOR="#6a8499" DESTINATION="ID_1442345755" ENDARROW="Default" ENDINCLINATION="-971;84;" ID="Arrow_ID_1191206769" SOURCE="ID_1844877136" STARTARROW="None" STARTINCLINATION="507;-51;"/>
<icon BUILTIN="flag-yellow"/>
<node CREATED="1515877499720" HGAP="-59" ID="ID_1283126436" MODIFIED="1518487921066" TEXT="Basis" VSHIFT="29">
<node CREATED="1515877527300" ID="ID_1356241564" MODIFIED="1518487921066" TEXT="ist Teil des ViewLocators">
@ -23513,7 +23513,7 @@
<node COLOR="#338800" CREATED="1576855620250" ID="ID_1121301646" MODIFIED="1612031401163" TEXT="relatives Positionieren erm&#xf6;glichen">
<arrowlink COLOR="#15bcc9" DESTINATION="ID_1816490333" ENDARROW="Default" ENDINCLINATION="-454;46;" ID="Arrow_ID_408864676" STARTARROW="None" STARTINCLINATION="-235;17;"/>
<linktarget COLOR="#6780d3" DESTINATION="ID_1121301646" ENDARROW="Default" ENDINCLINATION="551;-498;" ID="Arrow_ID_229033893" SOURCE="ID_1642579599" STARTARROW="None" STARTINCLINATION="-477;21;"/>
<linktarget COLOR="#4668c0" DESTINATION="ID_1121301646" ENDARROW="Default" ENDINCLINATION="-360;299;" ID="Arrow_ID_1147127867" SOURCE="ID_1574493569" STARTARROW="None" STARTINCLINATION="466;56;"/>
<linktarget COLOR="#4668c0" DESTINATION="ID_1121301646" ENDARROW="Default" ENDINCLINATION="-360;299;" ID="Arrow_ID_1147127867" SOURCE="ID_1574493569" STARTARROW="None" STARTINCLINATION="472;50;"/>
<icon BUILTIN="button_ok"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1582410135584" ID="ID_969058360" MODIFIED="1611478497698" TEXT="#1207 relative attachment and (custom) drawing of sub-widgets">
<arrowlink COLOR="#f17745" DESTINATION="ID_1208770677" ENDARROW="Default" ENDINCLINATION="-696;74;" ID="Arrow_ID_1555581659" STARTARROW="None" STARTINCLINATION="1109;48;"/>
@ -28577,6 +28577,19 @@
</body>
</html></richcontent>
</node>
<node CREATED="1612438613382" ID="ID_167120458" MODIFIED="1612438705315" TEXT="DisplayFrame bleibt als einzige Alternative &#xfc;brig">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...f&#252;r eine zentrale Schaltstelle und Verteiler.<br />Denn nur der DisplayFrame ist hinreichend loka und dennoch erreichbar
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1612438770925" ID="ID_225186300" MODIFIED="1612438799056" TEXT="&#x27f9; DisplayFrame ist keine Abstraktion im strengen Sinn"/>
</node>
<node CREATED="1573926191124" ID="ID_1389602122" MODIFIED="1573928984092" TEXT="Display-Frame geh&#xf6;rt eigentlich zum Track">
<arrowlink COLOR="#2769d6" DESTINATION="ID_1953592630" ENDARROW="Default" ENDINCLINATION="-300;1096;" ID="Arrow_ID_928857904" STARTARROW="None" STARTINCLINATION="-1987;53;"/>
@ -28592,7 +28605,7 @@
</node>
<node CREATED="1568587312669" ID="ID_178738138" MODIFIED="1576975019591" TEXT="die vertikalen Start-Offsets aus dem passenden Display-Frame">
<arrowlink COLOR="#5e57bd" DESTINATION="ID_1792139654" ENDARROW="Default" ENDINCLINATION="-2065;214;" ID="Arrow_ID_1917645572" STARTARROW="None" STARTINCLINATION="-949;44;"/>
<linktarget COLOR="#8395a4" DESTINATION="ID_178738138" ENDARROW="Default" ENDINCLINATION="-297;15;" ID="Arrow_ID_1606292545" SOURCE="ID_1574493569" STARTARROW="None" STARTINCLINATION="269;32;"/>
<linktarget COLOR="#8395a4" DESTINATION="ID_178738138" ENDARROW="Default" ENDINCLINATION="-297;15;" ID="Arrow_ID_1606292545" SOURCE="ID_1574493569" STARTARROW="None" STARTINCLINATION="273;30;"/>
</node>
</node>
<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1611478658033" HGAP="73" ID="ID_1825783827" MODIFIED="1611479264977" TEXT="diese L&#xf6;sung scheint tragf&#xe4;hig. Nun fertig bauen!" VSHIFT="12">
@ -28687,10 +28700,14 @@
</ul>
</body>
</html></richcontent>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1612438537570" ID="ID_336118739" MODIFIED="1612438557683" TEXT="schrittweise herausfinden was gebraucht wird...">
<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
<icon BUILTIN="bell"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1583679368212" ID="ID_1574493569" MODIFIED="1584289385953" TEXT="Einh&#xe4;nge-Mechanismus">
<arrowlink COLOR="#4668c0" DESTINATION="ID_1121301646" ENDARROW="Default" ENDINCLINATION="-360;299;" ID="Arrow_ID_1147127867" STARTARROW="None" STARTINCLINATION="466;56;"/>
<arrowlink COLOR="#8395a4" DESTINATION="ID_178738138" ENDARROW="Default" ENDINCLINATION="-297;15;" ID="Arrow_ID_1606292545" STARTARROW="None" STARTINCLINATION="269;32;"/>
<arrowlink COLOR="#4668c0" DESTINATION="ID_1121301646" ENDARROW="Default" ENDINCLINATION="-360;299;" ID="Arrow_ID_1147127867" STARTARROW="None" STARTINCLINATION="472;50;"/>
<arrowlink COLOR="#8395a4" DESTINATION="ID_178738138" ENDARROW="Default" ENDINCLINATION="-297;15;" ID="Arrow_ID_1606292545" STARTARROW="None" STARTINCLINATION="273;30;"/>
<icon BUILTIN="pencil"/>
<node CREATED="1584201581597" HGAP="61" ID="ID_1793842194" MODIFIED="1584289376633" TEXT="mu&#xdf; direkt beim Ctor-Aufruf passieren" VSHIFT="19">
<icon BUILTIN="button_cancel"/>
@ -29562,8 +29579,8 @@
<icon BUILTIN="pencil"/>
<node CREATED="1583678069596" ID="ID_749021089" MODIFIED="1583678189115" TEXT="Stufe-1">
<icon BUILTIN="forward"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1583678075045" ID="ID_1071916226" MODIFIED="1583678101462" TEXT="erst mal &#xfc;berhaupt einen Block belegen">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1583678075045" ID="ID_1071916226" MODIFIED="1612439673716" TEXT="erst mal &#xfc;berhaupt einen Block belegen">
<icon BUILTIN="button_ok"/>
<node CREATED="1584318751425" ID="ID_1908104469" MODIFIED="1584318760838" TEXT="nehme mal einen Gtk::Button...">
<icon BUILTIN="ksmiletris"/>
</node>
@ -29592,8 +29609,101 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1583678122516" ID="ID_73602256" MODIFIED="1583678142379" TEXT="...und dessen vertikale Ausdehnung ermitteln und zur&#xfc;ckmelden">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1583678122516" ID="ID_73602256" MODIFIED="1612439671575" TEXT="...und dessen vertikale Ausdehnung ermitteln und zur&#xfc;ckmelden">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1612439704954" ID="ID_102633650" MODIFIED="1612480364697" TEXT="Clip-Parameter &#x2192; horizontale Ausdehnung">
<icon BUILTIN="pencil"/>
<node CREATED="1612471194589" ID="ID_1485158816" MODIFIED="1612471203240" TEXT="mehrere Probleme zu &#xfc;berwinden">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1612471205161" ID="ID_544296566" MODIFIED="1612471456398" TEXT="GTK erlaubt keine explizite Gr&#xf6;&#xdf;e">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...das ist eine grundlegende Design-Enscheidung (und zwar eine Gute), aber in der Praxis mu&#223; es nat&#252;rlich trotzdem einen Weg geben, nur ist der dann relativ indirekt und auch nicht wirklich dokumentiert
</p>
</body>
</html></richcontent>
<arrowlink COLOR="#a09aae" DESTINATION="ID_1508852681" ENDARROW="Default" ENDINCLINATION="-2048;204;" ID="Arrow_ID_1446927054" STARTARROW="None" STARTINCLINATION="-3602;0;"/>
<node COLOR="#990000" CREATED="1612471458578" ID="ID_611633103" MODIFIED="1612480292438" TEXT="Experiment: gen&#xfc;gt der size_request?">
<icon BUILTIN="button_cancel"/>
<node CREATED="1612480298341" ID="ID_1348090876" MODIFIED="1612480308730" TEXT="funktioniert nur zur Vergr&#xf6;&#xdf;erung"/>
<node CREATED="1612480309646" ID="ID_1463447127" MODIFIED="1612480315253" TEXT="aber beschneidet nicht"/>
</node>
</node>
<node COLOR="#435e98" CREATED="1612471480502" ID="ID_103620026" MODIFIED="1612480353892" TEXT="&#xdc;bersetzung Zeit in Pixel">
<node CREATED="1612471500084" ID="ID_269480980" MODIFIED="1612474845425" TEXT="eigentlich Aufgabe der Zoom-Steuerung">
<icon BUILTIN="yes"/>
</node>
<node CREATED="1612471511450" ID="ID_116082667" MODIFIED="1612471518541" TEXT="Problematisch ist der Zugang">
<node CREATED="1612471524505" ID="ID_1226213044" MODIFIED="1612471811699" TEXT="Widgets sollen nicht direkt mit dem Layout-Manager reden">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
Ich will nicht, da&#223; der DisplayManager zu bedeutend wird, weil dann eine direkte Manipulation einzelner Widgets durch den DisplayManager als die &quot;einfachste&quot; und &quot;nat&#252;rlichste&quot; L&#246;sung erscheinen k&#246;nnte. Dagegen wehre ich mich, weil es zu einer starken Kopplung f&#252;hrt.
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1612471562435" ID="ID_1613228671" MODIFIED="1612471569974" TEXT="abstrahiert &#xfc;ber den CanvasHook">
<node CREATED="1612471572242" ID="ID_1034906351" MODIFIED="1612471577173" TEXT="hatte es dort sch&#xf6;n versteckt"/>
<node CREATED="1612471577749" ID="ID_1723611368" MODIFIED="1612471646979" TEXT="aber anscheinend ist das doch eine API-Funktion">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
es gibt bereits einen <i>S&#252;ndenfall,</i>&#160;n&#228;mlich im RelativeCanvasHook: der mu&#223; delegieren, und daher von au&#223;en diese Methode aufrufen
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1612471892599" ID="ID_97557081" MODIFIED="1612471918991" TEXT="und noch schlimmer: wir haben jetzt zwei verkettete virtual calls"/>
</node>
<node CREATED="1612473087980" ID="ID_1089235510" MODIFIED="1612473100872" TEXT="ist dieser Zugangspunkt sinnvoll?">
<node CREATED="1612473107642" ID="ID_790590091" MODIFIED="1612473145384" TEXT="daf&#xfc;r spricht: per Zeit an den Canvas geheftet"/>
<node CREATED="1612473146517" ID="ID_116246629" MODIFIED="1612473172733" TEXT="dagegen spricht">
<node CREATED="1612473174072" ID="ID_589866375" MODIFIED="1612473205808" TEXT="bei Zoom-&#xc4;nderung mu&#xdf; sich das Widget neu anheften"/>
<node CREATED="1612473206764" ID="ID_383710389" MODIFIED="1612473258913" TEXT="Widget und nicht Canvas ist f&#xfc;r die Ausdehnung des Widgets zust&#xe4;ndig"/>
</node>
</node>
<node CREATED="1612474248183" ID="ID_1920258813" MODIFIED="1612474254178" TEXT="Neben-Constraint: Storage">
<node CREATED="1612474255953" ID="ID_1180938524" MODIFIED="1612474796077" TEXT="den Pointer auf den View habe ich zwangsl&#xe4;ufig">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
Das ist eine Konsequenz aus dem Design des Diff-Framework; genauer, aus der konkreten Form, die die Implementierung des Diff-Framework bekommen hat: Und zwar, da&#223; ein generischer Container gebunden wird. Das bedeutet, da&#223; die Elemente im Container wie Werte behandelt werden. Und deshalb m&#252;ssen sich Widgets selbst&#228;ndig vom Canvas abmelden. Die Alternative dazu w&#228;re, da&#223; der Parent den Diff interpretiert, und seine Kinder direkt manipuliert. Dann w&#228;ren diese Kinder aber auch Widgets, und nicht nochmal indirekt als Presenter angebunden. K&#246;nnte man machen, habe ich aber ein mulmiges Gef&#252;hl. Da nehme ich dann doch lieber ein smart-Handle und einen Back-Pointer in Kauf.
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1612474798393" ID="ID_426717931" MODIFIED="1612474928592" TEXT="jeder andere Service m&#xfc;&#xdf;te noch zus&#xe4;tzlich verdrahtet werden">
<arrowlink COLOR="#6377b1" DESTINATION="ID_1343110314" ENDARROW="Default" ENDINCLINATION="33;-52;" ID="Arrow_ID_1779941265" STARTARROW="None" STARTINCLINATION="-154;7;"/>
</node>
</node>
</node>
<node COLOR="#435e98" CREATED="1612474853633" ID="ID_1343110314" MODIFIED="1612480345782" TEXT="Beschlu&#xdf;: es wird explizit Bestandteil des CanvasHook-API">
<linktarget COLOR="#6377b1" DESTINATION="ID_1343110314" ENDARROW="Default" ENDINCLINATION="33;-52;" ID="Arrow_ID_1779941265" SOURCE="ID_426717931" STARTARROW="None" STARTINCLINATION="-154;7;"/>
<icon BUILTIN="yes"/>
<node COLOR="#338800" CREATED="1612480328315" ID="ID_1469666563" MODIFIED="1612480344504" TEXT="public machen">
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1612480333285" ID="ID_435258153" MODIFIED="1612480343249" TEXT="direkt verwenden im RelativeCanvasHook">
<icon BUILTIN="button_ok"/>
</node>
</node>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1611539501493" ID="ID_1849626018" MODIFIED="1611539513626" TEXT="TODO: &#xdc;berlegungen zur Daten-Storage">
<icon BUILTIN="flag-yellow"/>
@ -31698,7 +31808,7 @@
<icon BUILTIN="info"/>
<node CREATED="1523021612818" ID="ID_366179512" MODIFIED="1557498707234" TEXT="Per Konvention festgelegt">
<node CREATED="1523022525819" ID="ID_1844877136" MODIFIED="1557498707234" TEXT="ViewSpec-DSL">
<arrowlink COLOR="#6a8499" DESTINATION="ID_1442345755" ENDARROW="Default" ENDINCLINATION="-971;84;" ID="Arrow_ID_1191206769" STARTARROW="None" STARTINCLINATION="502;0;"/>
<arrowlink COLOR="#6a8499" DESTINATION="ID_1442345755" ENDARROW="Default" ENDINCLINATION="-971;84;" ID="Arrow_ID_1191206769" STARTARROW="None" STARTINCLINATION="507;-51;"/>
<icon BUILTIN="forward"/>
</node>
</node>
@ -53547,6 +53657,36 @@
<node CREATED="1554476906923" ID="ID_437420072" MODIFIED="1557498707239" TEXT="Cairo-Doku(allgemein)"/>
<node CREATED="1554476956084" ID="ID_541824716" LINK="https://www.cairographics.org/documentation/cairomm/reference/classCairo_1_1Context.html" MODIFIED="1557498707239" TEXT="CairoContext(C++)"/>
</node>
<node CREATED="1612468919379" ID="ID_1508852681" MODIFIED="1612471386536" TEXT="Problem: explizite Gr&#xf6;&#xdf;e">
<linktarget COLOR="#a09aae" DESTINATION="ID_1508852681" ENDARROW="Default" ENDINCLINATION="-2048;204;" ID="Arrow_ID_1446927054" SOURCE="ID_544296566" STARTARROW="None" STARTINCLINATION="-3602;0;"/>
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1612468930840" ID="ID_340039660" MODIFIED="1612468940602" TEXT="das ist von GTK nicht vorgesehen"/>
<node CREATED="1612468941622" ID="ID_1584501445" MODIFIED="1612468951097" TEXT="wegen Layout, Themes, Schriftarten"/>
<node CREATED="1612468955668" ID="ID_719115150" MODIFIED="1612468971046" TEXT="Workaround">
<node CREATED="1612468972770" ID="ID_54239834" MODIFIED="1612468994420" TEXT="set_size_request">
<node CREATED="1612468999397" ID="ID_766492418" MODIFIED="1612469008793" TEXT="das legt aber nur die minimal-Ausdehnung fest"/>
<node CREATED="1612469009709" ID="ID_378480430" MODIFIED="1612469044092" TEXT="Umgebung: Canvas oder Box mit pack_shrink"/>
<node CREATED="1612469193268" ID="ID_881317091" MODIFIED="1612469202517" TEXT="danach: queue_resize()">
<icon BUILTIN="back"/>
</node>
</node>
<node CREATED="1612469049536" ID="ID_382411942" MODIFIED="1612469057208" TEXT="size_allocate">
<node CREATED="1612469059390" ID="ID_545938622" MODIFIED="1612469079936" TEXT="man tut so, als w&#xe4;re man der Container / das Framework"/>
<node CREATED="1612469081850" ID="ID_138109291" MODIFIED="1612469185623" TEXT="Problem: braucht beide Dimensionen incl Dekoration">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
in dem Widget, das diesen Aufruf empf&#228;ngt, wird der Margin abgezogen, und nur dieser reduzierte Wert wird im Widget selber als Allocation gespeichert
</p>
</body>
</html></richcontent>
</node>
</node>
</node>
</node>
</node>
<node CREATED="1476375676818" ID="ID_1029920942" MODIFIED="1557498707239" TEXT="Canvas">
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@ -53559,7 +53699,7 @@
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