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ElementBox: successfully implemented size-constrained ClipWidget (closes #1235)

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* restructure the widgets used to implement ElementBox
 * inject a Gtk::EventBox top-level base type to capture all Gdk-Events
 * push the Gtk::Frame one level down (TODO: API for managing children)

With these changes
 * dragging of Clips in the timeline works as expected
 * size constraints are observed precisely
 * all warnings and assertion failures from GTK disappeared

Thus we can conclude that the solution approach for size constrained widgets
was successful and this challenging problem is solved.
This commit is contained in:
Fischlurch 2022-10-21 19:18:21 +02:00
parent 3953bbd5ee
commit eb500dd453
5 changed files with 288 additions and 106 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/stage/timeline/clip-widget.cpp
View file

@ -318,7 +318,6 @@ namespace timeline {
establishHorizontalExtension()
{
int hsiz = getCanvas().getMetric().translateTimeToPixels (accessDuration());
cout << "Clip:: hsize="<<hsiz<<endl; ////////////////////////////////////////////////////////TICKET #1038 : tracing -- remove this
return hsiz;
}

51
src/stage/widget/element-box-widget.cpp
View file

@ -189,41 +189,14 @@ namespace widget {
}
namespace {
inline bool
tmpUnhide (Gtk::Widget& w)
{
bool was_hidden = not w.is_visible();
w.show();
return was_hidden;
}
inline void
restoreHide (Gtk::Widget& w, bool was_hidden)
{
if (was_hidden)
w.hide();
else
w.show();
}
}
void
IDLabel::setCaption(cuString& idCaption)
{
// can not retrieve size information from hidden widgets...
bool hideIcon = tmpUnhide (icon_);
bool hideMenu = tmpUnhide (menu_);
bool hideName = tmpUnhide (name_);
bool hideThis = tmpUnhide (*this);
name_.set_text(idCaption);
// can not retrieve size information from hidden widgets...
this->show_all(); // Note: size constraint handling will trigger again
// cache required full display size (for size constrained layout)
queryNaturalSize (*this, labelFullSize_);
restoreHide (icon_, hideThis);
restoreHide (menu_, hideName);
restoreHide (name_, hideMenu);
restoreHide (*this, hideIcon);
}
cuString
@ -235,22 +208,24 @@ namespace widget {
ElementBoxWidget::ElementBoxWidget (Config config)
: Frame{}
: EventBox{}
, strategy_{config.buildLayoutStrategy(*this)}
, label_{config.getIconID()
,config.getMenuSymb()
,config.getIconSize()}
, frame_{}
{
set_name(ID_element);
get_style_context()->add_class(CLASS_background); // Style to ensure an opaque backdrop
get_style_context()->add_class(CLASS_elementbox);
set_label_align(0.0, 0.0);
set_name (ID_element);
get_style_context()->add_class (CLASS_background); // Style to ensure an opaque backdrop
get_style_context()->add_class (CLASS_elementbox);
label_.get_style_context()->add_class (CLASS_elementbox_idlabel);
set_label_widget(label_);
label_.get_style_context()->add_class(CLASS_elementbox_idlabel);
frame_.set_label_align (0.0, 0.0);
frame_.set_label_widget(label_);
this->add (frame_);
this->show_all();
label_.setCaption(config.getName());
label_.setCaption (config.getName());
}
@ -480,8 +455,6 @@ namespace widget {
IDLabel::adaptSize (int widthC, int heightC)
{
// first determine if vertical extension is problematic
///////////////////////////////////////////////////////////////////////////////TICKET #1038 : tracing -- remove this
cout << _Fmt{"IDLb:: adaptSize(%d,%d) i:%b m:%b l:%b"} % widthC % heightC % icon_.is_visible() % menu_.is_visible() % name_.is_visible() <<endl;
int currH = queryNaturalHeight (*this);
if (currH > heightC)
{//hide all child widgets,

6
src/stage/widget/element-box-widget.hpp
View file

@ -141,9 +141,9 @@ namespace widget {
* but need more exposure and real world usage as of 9/22
*/
class ElementBoxWidget
: public Gtk::Frame
: public Gtk::EventBox
{
using _Base = Gtk::Frame;
using _Base = Gtk::EventBox;
struct Strategy
{
SizeGetter getWidth{};
@ -155,7 +155,9 @@ namespace widget {
/** actual layout strategy binding for this widget */
Strategy strategy_;
IDLabel label_;
Gtk::Frame frame_;
public:
class Config;

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{4}}))
, emu (clip2)
, emu (forkRoot)
, emu (timeline)

334
wiki/thinkPad.ichthyo.mm
View file

@ -18248,10 +18248,10 @@
<node CREATED="1480639254498" ID="ID_601165955" MODIFIED="1557498707223" TEXT="Placement"/>
<node CREATED="1480639279591" ID="ID_887618627" MODIFIED="1557498707223" TEXT="Timecode"/>
<node CREATED="1480639276064" ID="ID_1418536459" MODIFIED="1557498707223" TEXT="Fader"/>
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1612621029065" TEXT="ElementBoxWidget">
<node BACKGROUND_COLOR="#ccb59b" COLOR="#6e2a38" CREATED="1541089187808" ID="ID_368245484" MODIFIED="1666368514934" 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="-1673;136;"/>
<linktarget COLOR="#406d5c" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" SOURCE="ID_485594461" STARTARROW="None" STARTINCLINATION="-1674;133;"/>
<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
<icon BUILTIN="yes"/>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1541095743511" ID="ID_96949358" MODIFIED="1661616404971" TEXT="#1185 ElementBoxWidget">
@ -18260,8 +18260,8 @@
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1661616390134" ID="ID_416292634" MODIFIED="1661616398305" TEXT="#1219 draft framework for ElementBoxWidget">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1664029665088" ID="ID_1662487522" MODIFIED="1664029676728" TEXT="grunds&#xe4;tzlich verwendbar als Custom-Widget-Basisklasse">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1664029665088" ID="ID_1662487522" MODIFIED="1666316031015" TEXT="grunds&#xe4;tzlich verwendbar als Custom-Widget-Basisklasse">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1664029678375" ID="ID_653676253" MODIFIED="1664029703892" TEXT="Erweiterungspunkt f&#xfc;r nach Zeit geeichter Ausdehnung vorhanden">
<icon BUILTIN="flag-yellow"/>
@ -18501,19 +18501,19 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625072797631" ID="ID_841790569" MODIFIED="1625072818628" TEXT="Basis-Eigenschaften">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625072797631" ID="ID_841790569" MODIFIED="1666367871002" TEXT="Basis-Eigenschaften">
<icon BUILTIN="yes"/>
<node CREATED="1625072864330" ID="ID_438468634" MODIFIED="1625072878647" TEXT="Ausdehnung fest vorgebbar">
<node CREATED="1625072881602" ID="ID_1324969264" MODIFIED="1625072892300" TEXT="mu&#xdf; sich dieser Vorgabe flexibel anpassen k&#xf6;nnen"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625073121818" ID="ID_1588690810" MODIFIED="1625073648828" TEXT="Baukasten-System">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625073160693" ID="ID_741459865" MODIFIED="1625073652499" TEXT="Icon">
<icon BUILTIN="flag-yellow"/>
<icon BUILTIN="info"/>
<node COLOR="#338800" CREATED="1625073160693" ID="ID_741459865" MODIFIED="1666367854233" TEXT="Icon">
<icon BUILTIN="button_ok"/>
<node CREATED="1625073209509" ID="ID_1647215892" MODIFIED="1625073216705" TEXT="Knopf mit Ein/Aus-Funktion"/>
<node CREATED="1625073252395" ID="ID_1887674930" MODIFIED="1625073270866" TEXT="Placement mit Placement-Properties"/>
<node CREATED="1625073397733" ID="ID_252893466" MODIFIED="1625073403209" TEXT="Typ-Icon"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1664546626719" ID="ID_482244613" MODIFIED="1664548727113" TEXT="Varianten">
<node COLOR="#435e98" CREATED="1664546626719" ID="ID_482244613" MODIFIED="1666367845862" TEXT="Varianten">
<linktarget COLOR="#5559e6" DESTINATION="ID_482244613" ENDARROW="Default" ENDINCLINATION="-920;179;" ID="Arrow_ID_1621895884" SOURCE="ID_303509395" STARTARROW="None" STARTINCLINATION="226;27;"/>
<icon BUILTIN="yes"/>
<node CREATED="1664546651860" ID="ID_54475262" MODIFIED="1664546667097" TEXT="das Grundmuster ist unver&#xe4;nderbar fixiert"/>
@ -18627,8 +18627,8 @@
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1612620683850" ID="ID_1290975013" MODIFIED="1664548424931" TEXT="auszuarbeiten....">
<icon BUILTIN="pencil"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625075258497" ID="ID_1793264120" MODIFIED="1625075268568" TEXT="Steuerung des Darstellungs-Verhaltens">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1625075258497" ID="ID_1793264120" MODIFIED="1666367882488" TEXT="Steuerung des Darstellungs-Verhaltens">
<icon BUILTIN="hourglass"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625075337795" ID="ID_873107891" MODIFIED="1625075355499" TEXT="Analyse">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1625075422300" ID="ID_1618347962" MODIFIED="1625075428886" TEXT="was ist flexibel?">
@ -18718,21 +18718,36 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1661557586218" ID="ID_859822896" MODIFIED="1661620110453" TEXT="Zeitangabe in Ausdehnung umsetzen">
<node COLOR="#338800" CREATED="1661557586218" FOLDED="true" ID="ID_859822896" MODIFIED="1666367808161" TEXT="Zeitangabe in Ausdehnung umsetzen">
<arrowlink COLOR="#7479c0" DESTINATION="ID_1343110314" ENDARROW="Default" ENDINCLINATION="-815;-1702;" ID="Arrow_ID_712594873" STARTARROW="None" STARTINCLINATION="471;32;"/>
<icon BUILTIN="flag-yellow"/>
<node CREATED="1661557875471" ID="ID_339780782" MODIFIED="1661557937884" TEXT="API im CanvasHook">
<icon BUILTIN="button_ok"/>
<node COLOR="#435e98" CREATED="1661557875471" ID="ID_339780782" MODIFIED="1666367752575" TEXT="API im CanvasHook">
<icon BUILTIN="messagebox_warning"/>
<node CREATED="1661557894284" ID="ID_58216896" MODIFIED="1661557909598" TEXT="&#x27f9; dann m&#xfc;&#xdf;te es hookable sein..."/>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1661557910685" ID="ID_709773431" MODIFIED="1661557921585" TEXT="Alternativen?">
<node COLOR="#435e98" CREATED="1661557910685" ID="ID_709773431" MODIFIED="1666367524129" TEXT="Alternativen?">
<icon BUILTIN="help"/>
<node CREATED="1666367514311" ID="ID_1178111441" MODIFIED="1666367521823" TEXT="generisches API einf&#xfc;hren">
<icon BUILTIN="button_cancel"/>
</node>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1666367490994" ID="ID_636187892" MODIFIED="1666367724504" TEXT="Pull per &#x3bb;">
<linktarget COLOR="#4e4fc1" DESTINATION="ID_636187892" ENDARROW="Default" ENDINCLINATION="-34;579;" ID="Arrow_ID_1572846735" SOURCE="ID_1159408504" STARTARROW="None" STARTINCLINATION="61;-374;"/>
<icon BUILTIN="forward"/>
<node COLOR="#338800" CREATED="1666367543907" ID="ID_859364136" LINK="#ID_953567994" MODIFIED="1666367732555" TEXT="proof-of-Concept: ClipWidget"/>
<node COLOR="#435e98" CREATED="1666367735326" ID="ID_148248231" MODIFIED="1666367745247" TEXT="L&#xf6;sung sieht sauber aus">
<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
</node>
</node>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1661557959964" HGAP="149" ID="ID_1683748982" MODIFIED="1661557987514" TEXT="Wann/wozu?" VSHIFT="2">
</node>
</node>
<node COLOR="#435e98" CREATED="1661557959964" HGAP="149" ID="ID_1683748982" MODIFIED="1666367798594" TEXT="Wann/wozu?" VSHIFT="2">
<icon BUILTIN="help"/>
<node CREATED="1661558025450" ID="ID_153982067" MODIFIED="1661558059696" TEXT="im Modus &quot;feste L&#xe4;ngenvorgabe&quot;">
<arrowlink DESTINATION="ID_857510555" ENDARROW="Default" ENDINCLINATION="390;43;" ID="Arrow_ID_817703923" STARTARROW="None" STARTINCLINATION="474;-38;"/>
</node>
<node CREATED="1666367765333" ID="ID_1429653928" MODIFIED="1666367779043" TEXT="anpassen nach jeder Zoom-&#xc4;nderung"/>
<node CREATED="1666367783710" ID="ID_1991615628" MODIFIED="1666367796499" TEXT="ggfs auch Vorgaben zur H&#xf6;he vorsehen">
<icon BUILTIN="yes"/>
</node>
</node>
</node>
</node>
@ -18992,6 +19007,61 @@
</node>
</node>
</node>
<node CREATED="1666316047026" ID="ID_1796374049" MODIFIED="1666316054938" TEXT="Widget-Struktur">
<node CREATED="1666316060213" ID="ID_1152183779" MODIFIED="1666316068920" TEXT="verwendet ein Sub-Widget als Label">
<node CREATED="1666316070268" ID="ID_695985659" MODIFIED="1666316075503" TEXT="class IDLabel"/>
<node CREATED="1666316078131" ID="ID_1171906205" MODIFIED="1666316092903" TEXT="dieses bildet die charakteristische Triple-Struktur">
<icon BUILTIN="idea"/>
</node>
<node COLOR="#338800" CREATED="1666316099067" ID="ID_781968330" MODIFIED="1666316117414" TEXT="Funktionalit&#xe4;t zur Anpassung an size-constraint">
<icon BUILTIN="button_ok"/>
</node>
</node>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1666316122109" ID="ID_1084456020" MODIFIED="1666366890443" TEXT="erzeugt einen undurchsichtigen Hintergrund">
<icon BUILTIN="button_ok"/>
<icon BUILTIN="hourglass"/>
<node COLOR="#338800" CREATED="1666316168044" ID="ID_875996468" MODIFIED="1666366863733" TEXT="L&#xf6;sung: CSS-Klasse .background">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1666317118953" ID="ID_204505026" MODIFIED="1666366866847" TEXT="L&#xf6;sung: Styling auf der (sichtbaren) EventBox">
<icon BUILTIN="hourglass"/>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1665969462522" ID="ID_1425589285" MODIFIED="1666368691150" TEXT="Medien-Typ in CSS-Styles umsetzen">
<arrowlink COLOR="#b46465" DESTINATION="ID_405495257" ENDARROW="Default" ENDINCLINATION="-539;-35;" ID="Arrow_ID_742470916" STARTARROW="None" STARTINCLINATION="-274;362;"/>
<icon BUILTIN="yes"/>
</node>
</node>
</node>
<node COLOR="#338800" CREATED="1666316190604" ID="ID_519294969" MODIFIED="1666366924396" TEXT="packt Content in eine Gtk::EventBox">
<linktarget COLOR="#526674" DESTINATION="ID_519294969" ENDARROW="Default" ENDINCLINATION="1268;576;" ID="Arrow_ID_860609088" SOURCE="ID_387720838" STARTARROW="None" STARTINCLINATION="-1409;-62;"/>
<icon BUILTIN="button_ok"/>
<node CREATED="1666316757672" ID="ID_869966472" MODIFIED="1666366920557" TEXT="verwendet ein sichtbares GdkWindow behind_child">
<icon BUILTIN="info"/>
</node>
<node CREATED="1666316737650" ID="ID_354756036" MODIFIED="1666366917942" TEXT="schafft M&#xf6;glichkeit, den Hintergrund einzuf&#xe4;rben">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1666316803445" ID="ID_431972258" MODIFIED="1666366907656" TEXT="dient als Parent-Window f&#xfc;r Widgets mit eigenem Window">
<icon BUILTIN="idea"/>
</node>
<node COLOR="#338800" CREATED="1666316815184" ID="ID_1495596367" MODIFIED="1666366904297" TEXT="damit normale Event-Propagierung m&#xf6;glich">
<icon BUILTIN="button_ok"/>
</node>
</node>
<node CREATED="1666316924338" ID="ID_492711320" MODIFIED="1666316935588" TEXT="Anordnung">
<node COLOR="#338800" CREATED="1666316936962" ID="ID_1057903927" MODIFIED="1666366928981" TEXT="erbt direkt von Gtk::EventBox">
<icon BUILTIN="button_ok"/>
<node CREATED="1666316958230" ID="ID_1048866675" MODIFIED="1666316981759" TEXT="damit ist die Event-Verdrahtung f&#xfc;r abgeleitete Klassen sichtbar"/>
</node>
<node COLOR="#338800" CREATED="1666316984594" ID="ID_1504629263" MODIFIED="1666366930475" TEXT="verwendet Gtk::Frame als Kind">
<icon BUILTIN="button_ok"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666316993672" ID="ID_827533347" MODIFIED="1666317106925" TEXT="Child-handling-API weiterleiten">
<icon BUILTIN="flag-yellow"/>
<node CREATED="1666317058231" ID="ID_217426878" MODIFIED="1666317080067" TEXT="damit es sich wie ein Container verh&#xe4;lt..."/>
<node CREATED="1666317080989" ID="ID_1257628334" MODIFIED="1666317104078" TEXT="dieses Verhalten aber an den Inhalt vom Gtk::Frame weitergibt"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1662051984940" ID="ID_974876977" MODIFIED="1662051988957" TEXT="Icon verwalten">
<icon BUILTIN="flag-yellow"/>
<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1662051990492" ID="ID_264004203" MODIFIED="1662052527424" TEXT="Verwaltung vordefinierter Icons">
@ -19052,6 +19122,19 @@
<arrowlink COLOR="#f27d99" DESTINATION="ID_446507732" ENDARROW="Default" ENDINCLINATION="356;501;" ID="Arrow_ID_1734621230" STARTARROW="None" STARTINCLINATION="225;17;"/>
<icon BUILTIN="messagebox_warning"/>
</node>
<node CREATED="1666367000884" ID="ID_1552390941" MODIFIED="1666367099475" TEXT="sieht mehr wie ein &quot;play&quot;-Button aus...">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...und das ist vielleicht sogar eine gute Idee: Lumiera k&#246;nnte die M&#246;glichkeit bieten, jedwedes Element eigens f&#252;r sich darzustellen oder zu inspizieren, transient und ohne Seiteneffekte
</p>
</body>
</html></richcontent>
<icon BUILTIN="idea"/>
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1662241925929" ID="ID_217944947" MODIFIED="1664136727535" TEXT="horizontale Ausdehnung">
@ -19087,13 +19170,13 @@
<icon BUILTIN="yes"/>
</node>
</node>
<node COLOR="#338800" CREATED="1663977435805" ID="ID_763928282" MODIFIED="1664836878051" TEXT="L&#xf6;sungs-Mechanismus GTK+CSS">
<node COLOR="#338800" CREATED="1663977435805" FOLDED="true" ID="ID_763928282" MODIFIED="1666370194656" TEXT="L&#xf6;sungs-Mechanismus GTK+CSS">
<linktarget COLOR="#505398" DESTINATION="ID_763928282" ENDARROW="Default" ENDINCLINATION="-708;-358;" ID="Arrow_ID_1762163985" SOURCE="ID_1501027418" STARTARROW="None" STARTINCLINATION="-29;281;"/>
<icon BUILTIN="button_ok"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1664036044208" ID="ID_1165985409" MODIFIED="1664036049568" TEXT="#1235 draft solution for size-constrained widgets">
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1664036044208" ID="ID_1165985409" MODIFIED="1666369956106" TEXT="#1235 draft solution for size-constrained widgets">
<icon BUILTIN="button_ok"/>
</node>
<node CREATED="1664486479334" ID="ID_1175352945" MODIFIED="1664486498010" TEXT="Fazit: Widget liefert den Constraint als minimal und als natural request">
<node COLOR="#435e98" CREATED="1664486479334" ID="ID_1175352945" MODIFIED="1666369958878" TEXT="Fazit: Widget liefert den Constraint als minimal und als natural request">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1664486499547" ID="ID_1517909946" MODIFIED="1664486599158" TEXT="CSS mu&#xdf; daf&#xfc;r sorgen, da&#xdf; dem nichts hinzugef&#xfc;gt wird">
@ -19111,31 +19194,14 @@
</body>
</html></richcontent>
<icon BUILTIN="yes"/>
<node COLOR="#338800" CREATED="1664668298178" ID="ID_1102642211" MODIFIED="1664674552382" TEXT="geeignete Selektoren vorsehen">
<node COLOR="#338800" CREATED="1664668298178" ID="ID_1102642211" LINK="#ID_1853406335" MODIFIED="1664674552382" TEXT="geeignete Selektoren vorsehen">
<arrowlink COLOR="#543f8c" DESTINATION="ID_696787535" ENDARROW="Default" ENDINCLINATION="-344;-15;" ID="Arrow_ID_1626542451" STARTARROW="None" STARTINCLINATION="560;45;"/>
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<icon BUILTIN="button_ok"/>
<node CREATED="1664669909170" HGAP="54" ID="ID_353257786" MODIFIED="1664670075595" TEXT="frame#element.elementbox" VSHIFT="-10">
<edge COLOR="#493d57" STYLE="linear"/>
<node CREATED="1664670077106" ID="ID_23637100" MODIFIED="1664670080590" TEXT="box#idlabel">
<node CREATED="1664670436370" ID="ID_169682858" MODIFIED="1664670440905" TEXT=".idlabel"/>
<node CREATED="1664671305061" ID="ID_1650353361" MODIFIED="1664671309328" TEXT="Kinder...">
<node CREATED="1664671310329" ID="ID_96245401" MODIFIED="1664671312682" TEXT=".idlabel__icon"/>
<node CREATED="1664671313875" ID="ID_858160172" MODIFIED="1664671319782" TEXT=".idlabel__menu"/>
<node CREATED="1664671320674" ID="ID_19239170" MODIFIED="1664671325085" TEXT=".idlabel__name"/>
</node>
<node CREATED="1664670133617" ID="ID_1907146399" MODIFIED="1664670140958" TEXT=".elementbox__idlabel">
<node CREATED="1664670252291" ID="ID_423384579" MODIFIED="1664670271427" TEXT="Achtung: nur wenn in einer ElementBox">
<icon BUILTIN="messagebox_warning"/>
</node>
</node>
</node>
<node CREATED="1664670174435" ID="ID_54680565" MODIFIED="1664670179225" TEXT="zus&#xe4;tzlich...">
<node CREATED="1664670194762" ID="ID_1459999893" MODIFIED="1664670202630" TEXT=".elementbox--video"/>
<node CREATED="1664670203554" ID="ID_471735544" MODIFIED="1664670210996" TEXT=".elementbox--audio"/>
</node>
</node>
</node>
<node COLOR="#4f4398" CREATED="1666370148380" ID="ID_910686792" LINK="#ID_1266679575" MODIFIED="1666370185149" TEXT="L&#xf6;sung funktioniert im Prototyp">
<font BOLD="true" NAME="SansSerif" SIZE="12"/>
</node>
</node>
<node COLOR="#338800" CREATED="1664027101386" FOLDED="true" ID="ID_325165287" MODIFIED="1664494902370" TEXT="erforderliche Ausdehnung feststellen">
@ -19298,6 +19364,7 @@
</ul>
</body>
</html></richcontent>
<arrowlink COLOR="#4e4fc1" DESTINATION="ID_636187892" ENDARROW="Default" ENDINCLINATION="-34;579;" ID="Arrow_ID_1572846735" STARTARROW="None" STARTINCLINATION="61;-374;"/>
<font ITALIC="true" NAME="SansSerif" SIZE="14"/>
<icon BUILTIN="yes"/>
</node>
@ -20533,6 +20600,7 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1665969213838" ID="ID_405495257" MODIFIED="1665969529899" TEXT="Anzeige-Strategy konfigurieren f&#xfc;r Medien-Typ">
<linktarget COLOR="#f76d6f" DESTINATION="ID_405495257" ENDARROW="Default" ENDINCLINATION="-268;17;" ID="Arrow_ID_1695054562" SOURCE="ID_1851529218" STARTARROW="None" STARTINCLINATION="-225;-219;"/>
<linktarget COLOR="#e36874" DESTINATION="ID_405495257" ENDARROW="Default" ENDINCLINATION="-2110;121;" ID="Arrow_ID_127305949" SOURCE="ID_207274074" STARTARROW="None" STARTINCLINATION="928;-50;"/>
<linktarget COLOR="#b46465" DESTINATION="ID_405495257" ENDARROW="Default" ENDINCLINATION="-539;-35;" ID="Arrow_ID_742470916" SOURCE="ID_1425589285" STARTARROW="None" STARTINCLINATION="-274;362;"/>
<icon BUILTIN="flag-yellow"/>
</node>
</node>
@ -20741,9 +20809,13 @@
<icon BUILTIN="idea"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666370244648" ID="ID_306927735" MODIFIED="1666371577138" TEXT="testhalber als Effekt in Ruler legen">
<arrowlink COLOR="#b12c6e" DESTINATION="ID_613160281" ENDARROW="Default" ENDINCLINATION="-819;-31;" ID="Arrow_ID_1531249433" STARTARROW="None" STARTINCLINATION="-322;25;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1654445594924" ID="ID_1266679575" MODIFIED="1665972215583" TEXT="Clip auf ElementBoxWidget umstellen">
<icon BUILTIN="pencil"/>
</node>
<node COLOR="#338800" CREATED="1654445594924" ID="ID_1266679575" MODIFIED="1666367207990" TEXT="Clip auf ElementBoxWidget umstellen">
<icon BUILTIN="button_ok"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1665969365831" ID="ID_149648314" MODIFIED="1665971950293" TEXT="Design-Probleme">
<linktarget COLOR="#ff5268" DESTINATION="ID_149648314" ENDARROW="Default" ENDINCLINATION="2;21;" ID="Arrow_ID_441789889" SOURCE="ID_500624074" STARTARROW="None" STARTINCLINATION="-196;23;"/>
<icon BUILTIN="messagebox_warning"/>
@ -20773,7 +20845,7 @@
</node>
</node>
</node>
<node COLOR="#338800" CREATED="1665971884155" ID="ID_1832121467" MODIFIED="1665971971444" TEXT="ansonsten &quot;fast&quot; nichts zu tun">
<node COLOR="#338800" CREATED="1665971884155" FOLDED="true" ID="ID_1832121467" MODIFIED="1665971971444" TEXT="ansonsten &quot;fast&quot; nichts zu tun">
<icon BUILTIN="button_ok"/>
<node COLOR="#338800" CREATED="1665971894646" ID="ID_1038999615" MODIFIED="1665971943555" TEXT="ElementBoxWidget als Basisklasse">
<icon BUILTIN="button_ok"/>
@ -20786,7 +20858,7 @@
<icon BUILTIN="button_ok"/>
</node>
</node>
<node COLOR="#435e98" CREATED="1665971975191" ID="ID_1645965443" MODIFIED="1666286274777" TEXT="size-constraint-Code wird zu fr&#xfc;h aufgerufen">
<node COLOR="#435e98" CREATED="1665971975191" FOLDED="true" ID="ID_1645965443" MODIFIED="1666286274777" TEXT="size-constraint-Code wird zu fr&#xfc;h aufgerufen">
<icon BUILTIN="broken-line"/>
<node CREATED="1665972027480" ID="ID_1481599747" MODIFIED="1665972094845">
<richcontent TYPE="NODE"><html>
@ -20924,9 +20996,9 @@
</node>
</node>
</node>
<node COLOR="#435e98" CREATED="1666286511402" ID="ID_901100748" MODIFIED="1666308082637" TEXT="Constraint-handling versagt u.U f&#xfc;r das Label">
<node COLOR="#435e98" CREATED="1666286511402" FOLDED="true" ID="ID_901100748" MODIFIED="1666308082637" TEXT="Constraint-handling versagt u.U f&#xfc;r das Label">
<icon BUILTIN="broken-line"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666286569009" ID="ID_571211770" MODIFIED="1666286670640" TEXT="Beispiel: Clip-1 : Duration 1s">
<node COLOR="#435e98" CREATED="1666286569009" ID="ID_571211770" MODIFIED="1666367130923" TEXT="Beispiel: Clip-1 : Duration 1s">
<icon BUILTIN="forward"/>
<node CREATED="1666286612844" ID="ID_1960027917" MODIFIED="1666286659485" TEXT="die Icons werden ausgeblendet">
<icon BUILTIN="broken-line"/>
@ -21004,14 +21076,14 @@
<icon BUILTIN="idea"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666286684491" ID="ID_825575865" MODIFIED="1666286709542" TEXT="Clip-Dragging funktioniert nur eingeschr&#xe4;nkt">
<node COLOR="#435e98" CREATED="1666286684491" FOLDED="true" ID="ID_825575865" MODIFIED="1666367282400" TEXT="Clip-Dragging funktioniert nur eingeschr&#xe4;nkt">
<icon BUILTIN="broken-line"/>
<node CREATED="1666286711357" ID="ID_118648001" MODIFIED="1666286724325" TEXT="wohl ein Event-Handling-Problem">
<icon BUILTIN="messagebox_warning"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666286731340" ID="ID_306299052" MODIFIED="1666286810542" TEXT="Dragging auf den Container spricht &#xfc;berhaupt nicht an">
<node COLOR="#435e98" CREATED="1666286731340" ID="ID_306299052" MODIFIED="1666367153546" TEXT="Dragging auf den Container spricht &#xfc;berhaupt nicht an">
<icon BUILTIN="broken-line"/>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666286814794" ID="ID_507527806" MODIFIED="1666286973216" TEXT="anscheinend wird der Event-Handler gar nicht aufgerufen">
<node COLOR="#435e98" CREATED="1666286814794" ID="ID_507527806" MODIFIED="1666367151520" TEXT="anscheinend wird der Event-Handler gar nicht aufgerufen">
<richcontent TYPE="NOTE"><html>
<head>
@ -21024,6 +21096,25 @@
</html></richcontent>
<icon BUILTIN="messagebox_warning"/>
</node>
<node CREATED="1666313907945" ID="ID_2075291" MODIFIED="1666314192593" TEXT="man mu&#xdf; da wohl erst etwas einrichten">
<arrowlink COLOR="#7788e0" DESTINATION="ID_775914278" ENDARROW="Default" ENDINCLINATION="-1021;-87;" ID="Arrow_ID_632223489" STARTARROW="None" STARTINCLINATION="-1049;77;"/>
<node CREATED="1666315741368" ID="ID_581715301" MODIFIED="1666315759423" TEXT="und die Voraussetzung: man braucht ein zugeordnetes GdkWindow"/>
<node CREATED="1666315760552" ID="ID_491760379" MODIFIED="1666315831393" TEXT="Diagnose: Gtk::Frame hat kein Window">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
get_has_window()&#160;&#160;&#10132; <font face="Monospaced" color="#6c13de">false</font>
</p>
</body>
</html></richcontent>
</node>
</node>
<node COLOR="#435e98" CREATED="1666316633184" ID="ID_387720838" MODIFIED="1666367275837" TEXT="&#x27f9; Konsequenz: EventBox im ElementBoxWidget fest einrichten">
<arrowlink COLOR="#526674" DESTINATION="ID_519294969" ENDARROW="Default" ENDINCLINATION="1268;576;" ID="Arrow_ID_860609088" STARTARROW="None" STARTINCLINATION="-1409;-62;"/>
</node>
</node>
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1666286786740" ID="ID_100457080" MODIFIED="1666286890547" TEXT="Dragging auf die Buttons nur mit mittlerer/rechter Maustaste">
<icon BUILTIN="idea"/>
@ -21044,6 +21135,15 @@
<icon BUILTIN="yes"/>
</node>
</node>
<node COLOR="#338800" CREATED="1666367167006" ID="ID_314408274" MODIFIED="1666367197804" TEXT="allein das Einf&#xfc;hren der Gtk::EventBox hat dieses Problem komplett und sauber gel&#xf6;st">
<icon BUILTIN="ksmiletris"/>
</node>
</node>
<node COLOR="#338800" CREATED="1666367210627" ID="ID_922603771" MODIFIED="1666367245412" TEXT="Umstellung erfolgreich">
<icon BUILTIN="button_ok"/>
<node CREATED="1666367222167" ID="ID_130129636" MODIFIED="1666367225553" TEXT="sieht sauber aus"/>
<node CREATED="1666367226358" ID="ID_967912847" MODIFIED="1666367235416" TEXT="reagiert korrekt auf L&#xe4;ngenbeschr&#xe4;nkung"/>
<node CREATED="1666367236236" ID="ID_1153020202" MODIFIED="1666367243679" TEXT="erzeugt keinerlei Assertions mehr"/>
</node>
</node>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1661695361415" ID="ID_1615822639" MODIFIED="1661695374805" TEXT="Integration mit Pop-up-Men&#xfc;/Framework">
@ -21051,6 +21151,34 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1666369999741" ID="ID_1289871763" MODIFIED="1666370009341" TEXT="weiter ausbauen...">
<icon BUILTIN="hourglass"/>
<node CREATED="1666370017462" ID="ID_1120283579" MODIFIED="1666370022975" TEXT="CSS-Styles steuern">
<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1666370024371" ID="ID_1853406335" MODIFIED="1666370067320" TEXT="definierte CSS-Selektoren">
<icon BUILTIN="info"/>
<node CREATED="1664669909170" HGAP="54" ID="ID_353257786" MODIFIED="1664670075595" TEXT="frame#element.elementbox" VSHIFT="-10">
<edge COLOR="#493d57" STYLE="linear"/>
<node CREATED="1664670077106" ID="ID_23637100" MODIFIED="1664670080590" TEXT="box#idlabel">
<node CREATED="1664670436370" ID="ID_169682858" MODIFIED="1664670440905" TEXT=".idlabel"/>
<node CREATED="1664671305061" ID="ID_1650353361" MODIFIED="1664671309328" TEXT="Kinder...">
<node CREATED="1664671310329" ID="ID_96245401" MODIFIED="1664671312682" TEXT=".idlabel__icon"/>
<node CREATED="1664671313875" ID="ID_858160172" MODIFIED="1664671319782" TEXT=".idlabel__menu"/>
<node CREATED="1664671320674" ID="ID_19239170" MODIFIED="1664671325085" TEXT=".idlabel__name"/>
</node>
<node CREATED="1664670133617" ID="ID_1907146399" MODIFIED="1664670140958" TEXT=".elementbox__idlabel">
<node CREATED="1664670252291" ID="ID_423384579" MODIFIED="1664670271427" TEXT="Achtung: nur wenn in einer ElementBox">
<icon BUILTIN="messagebox_warning"/>
</node>
</node>
</node>
<node CREATED="1664670174435" ID="ID_54680565" MODIFIED="1664670179225" TEXT="zus&#xe4;tzlich...">
<node CREATED="1664670194762" ID="ID_1459999893" MODIFIED="1664670202630" TEXT=".elementbox--video"/>
<node CREATED="1664670203554" ID="ID_471735544" MODIFIED="1664670210996" TEXT=".elementbox--audio"/>
</node>
</node>
</node>
</node>
</node>
</node>
<node CREATED="1480639267600" ID="ID_671046048" MODIFIED="1557498707223" TEXT="Clip"/>
<node CREATED="1480639365715" ID="ID_743867283" MODIFIED="1557498707223" TEXT="Bin"/>
@ -22343,6 +22471,10 @@
<node CREATED="1575580999173" ID="ID_1385039665" MODIFIED="1575581013895" TEXT="das ist dann eine dekorierende/delegierende Implementierung"/>
<node CREATED="1575581015219" ID="ID_1015965713" MODIFIED="1575581026974" TEXT="f&#xfc;r den Widget -&gt; Canvas - Fall"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1666371419810" ID="ID_613160281" MODIFIED="1666371577138" TEXT="sicherstellen da&#xdf; dieses Konzept auch in den Overview-Rulern funktioniert">
<linktarget COLOR="#b12c6e" DESTINATION="ID_613160281" ENDARROW="Default" ENDINCLINATION="-819;-31;" ID="Arrow_ID_1531249433" SOURCE="ID_306927735" STARTARROW="None" STARTINCLINATION="-322;25;"/>
<icon BUILTIN="flag-yellow"/>
</node>
</node>
<node COLOR="#338800" CREATED="1576757730509" FOLDED="true" ID="ID_1949130658" MODIFIED="1612002019554" TEXT="&#xbb;Widget-Position&#xab; heraus-abstrahieren">
<linktarget COLOR="#47cdcd" DESTINATION="ID_1949130658" ENDARROW="Default" ENDINCLINATION="-1150;77;" ID="Arrow_ID_662295339" SOURCE="ID_730955223" STARTARROW="None" STARTINCLINATION="877;53;"/>
@ -26173,7 +26305,7 @@
</head>
<body>
<p>
weil nur sie sowohl durch ihren Display-Frame die beiden Kind-Widgets kennen
weil <i>nur sie </i>durch ihren Display-Frame die beiden Kind-Widgets kennen
</p>
</body>
</html></richcontent>
@ -32990,7 +33122,7 @@
<arrowlink COLOR="#541915" DESTINATION="ID_96949358" ENDARROW="Default" ENDINCLINATION="-1458;130;" ID="Arrow_ID_1319876475" STARTARROW="None" STARTINCLINATION="818;-68;"/>
<icon BUILTIN="flag-yellow"/>
</node>
<node COLOR="#435e98" CREATED="1583678069596" ID="ID_749021089" MODIFIED="1665962512413" TEXT="Stufe-1">
<node COLOR="#435e98" CREATED="1583678069596" FOLDED="true" ID="ID_749021089" MODIFIED="1665962512413" TEXT="Stufe-1">
<icon BUILTIN="licq"/>
<node COLOR="#338800" CREATED="1583678075045" ID="ID_1071916226" MODIFIED="1612439673716" TEXT="erst mal &#xfc;berhaupt einen Block belegen">
<icon BUILTIN="button_ok"/>
@ -33231,23 +33363,26 @@
</node>
</node>
</node>
<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1583678162183" ID="ID_798000610" MODIFIED="1665962495818" TEXT="Stufe-2">
<icon BUILTIN="pencil"/>
<node COLOR="#338800" CREATED="1583678162183" ID="ID_798000610" MODIFIED="1666368507250" TEXT="Stufe-2">
<icon BUILTIN="button_ok"/>
<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="ElementBoxWidget verwenden....">
<node COLOR="#435e98" CREATED="1612620756065" ID="ID_485594461" MODIFIED="1666368525693" STYLE="fork" TEXT="ElementBoxWidget verwenden....">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
Das EventBoxWidget mu&#223; dazu nat&#252;rlich erst einmal gebaut werden; dieses ist n&#228;mlich im Grunde genommen genau die Abstraktion eines <i>abridged clip...</i>
Das EventBoxWidget mu&#223;te dazu nat&#252;rlich erst einmal gebaut werden; dieses ist n&#228;mlich im Grunde genommen genau die Abstraktion eines <i>abridged clip... </i>
</p>
<p>
<u>Stand 10/2022</u>: Basis-Implementierung geschaffen <font color="#25d56b">#1219</font>&#160;und sieht soweit gut aus...
</p>
</body>
</html></richcontent>
<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="2244;96;"/>
<arrowlink COLOR="#406d5c" DESTINATION="ID_368245484" ENDARROW="Default" ENDINCLINATION="-469;652;" ID="Arrow_ID_264431308" STARTARROW="None" STARTINCLINATION="-1674;133;"/>
<linktarget COLOR="#2082a9" DESTINATION="ID_485594461" ENDARROW="Default" ENDINCLINATION="872;71;" ID="Arrow_ID_1204090343" SOURCE="ID_474563596" STARTARROW="None" STARTINCLINATION="2306;92;"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1611539501493" HGAP="38" ID="ID_1849626018" MODIFIED="1665962611640" TEXT="TODO: &#xdc;berlegungen zur Daten-Storage" VSHIFT="18">
<icon BUILTIN="flag-yellow"/>
@ -36986,7 +37121,7 @@
</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?">
<node COLOR="#435e98" CREATED="1621096654578" FOLDED="true" ID="ID_95750773" MODIFIED="1666368478091" 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"/>
@ -37002,9 +37137,12 @@
</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="1624115572971" TEXT="stattdessen k&#xf6;nnte man schon mal das ElementBoxWidget anlegen">
<arrowlink COLOR="#5a3557" DESTINATION="ID_485594461" ENDARROW="Default" ENDINCLINATION="872;71;" ID="Arrow_ID_1204090343" STARTARROW="None" STARTINCLINATION="2244;96;"/>
<icon BUILTIN="flag-yellow"/>
<node COLOR="#338800" CREATED="1624106269815" ID="ID_474563596" MODIFIED="1666368403135" TEXT="stattdessen k&#xf6;nnte man schon mal das ElementBoxWidget anlegen">
<arrowlink COLOR="#2082a9" DESTINATION="ID_485594461" ENDARROW="Default" ENDINCLINATION="872;71;" ID="Arrow_ID_1204090343" STARTARROW="None" STARTINCLINATION="2306;92;"/>
<icon BUILTIN="button_ok"/>
</node>
<node COLOR="#338800" CREATED="1666368351190" ID="ID_231206120" MODIFIED="1666368387117" TEXT="ElementBoxWidget erbt von Gtk::EventBox &#x27f9; Events funktionieren nun wie erwartet">
<icon BUILTIN="button_ok"/>
</node>
</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?">
@ -59990,8 +60128,78 @@
<node CREATED="1617578520434" ID="ID_1901070467" MODIFIED="1617578522333" TEXT="Quellen">
<node CREATED="1617578526137" ID="ID_1073829112" MODIFIED="1617578530459" TEXT="gdkevents.h"/>
</node>
<node CREATED="1666314102389" ID="ID_775914278" MODIFIED="1666314192593" TEXT="Empfang von Events einrichten">
<linktarget COLOR="#7788e0" DESTINATION="ID_775914278" ENDARROW="Default" ENDINCLINATION="-1021;-87;" ID="Arrow_ID_632223489" SOURCE="ID_2075291" STARTARROW="None" STARTINCLINATION="-1049;77;"/>
<node CREATED="1666313931612" ID="ID_1877761104" LINK="https://developer-old.gnome.org/gtkmm/3.20/classGtk_1_1Widget.html#adeb38a3d5988a0e31055bbd2edb2e954" MODIFIED="1666314244599" TEXT="siehe Beschreibung zu Gtk::Widget::set_events(Gdk::EventMask)">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
The event mask determines which events a widget will receive. Keep in mind that different widgets have different default event masks, and by changing the event mask you may disrupt a widget&#8217;s functionality, so be careful. This function must be called while a widget is unrealized. Consider
<p>
<a http-equiv="content-type" content="text/html; charset=utf-8" class="el" href="https://developer-old.gnome.org/gtkmm/3.20/classGtk_1_1Widget.html#a1af589cb1d8764be5abf5579ffb69bec" title="Adds the events in the bitfield events to the event mask for widget. ">add_events()</a>&#160;for widgets that are already realized, or if you want to preserve the existing event mask. This function can&#8217;t be used with widgets that have no window. (See <a class="el" href="https://developer-old.gnome.org/gtkmm/3.20/classGtk_1_1Widget.html#a00d5da71916c20935fa7b9d856b248c2" title="Determines whether widget has a Gdk::Window of its own. ">get_has_window()</a>). To get events on those widgets, place them inside a <a class="el" href="https://developer-old.gnome.org/gtkmm/3.20/classGtk_1_1EventBox.html" title="Event capturing box. ">Gtk::EventBox</a>&#160;and receive events on the event box.
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Beispiel:
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Button hat ein Window, denn er m&#246;chte button_pressed-Events empfangen
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Frame dagegen hat kein Window, Icon auch nicht
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<node CREATED="1666314914943" ID="ID_264147295" MODIFIED="1666314936815" TEXT="Gtk::EventBox : Container zum Empfangen von Events">
<node CREATED="1666315152544" ID="ID_658878845" MODIFIED="1666315166554" TEXT="visible_window">
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wenn ein Kind-Widget sein eigenes Fenster aufmacht, dann ist ein unsichtbares EventBox-GdkWindow <i>nicht ein Parent-Window</i>&#160;von dem Kind-Widget-Window. Das kann das Propagieren von Events verhindern
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<node CREATED="1666315298266" ID="ID_968292588" MODIFIED="1666315309926" TEXT="wer empf&#xe4;ngt die Events zuerst?"/>
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