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Timeline: draft a scheme to use custom class names within CSS selectors

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We can add our custom classes to custom widgets, and we can set the
widget name, which can be used as #id selector from CSS

Unfortunately we can not set the main CSS node name for CustomWidgets defined through GTKmm (C++)
The latter is only possible when deriving the custom widget in plain-C, which is quite tedious.
On a second thought, this limitation is not so severe as it might seem, because
most of the time you actually do *not* want to change the CSS node name,
because you want to match against existing rules in the theme (e.g. box, or paned)

The actual case here would have been an exception to this rule, since here
it would be nice to anchor the whole custom timeline drawing in an "body.timeline" element


NOTE: Current state for the selector path is now:

window.background box.vertical box[2/3].horizontal widget[2/2] widget paned.vertical widget box.vertical notebook[1/1].frame paned.horizontal.timeline-page box.vertical.timeline.timeline-body fork.timeline
This commit is contained in:
Fischlurch 2019-07-13 21:02:30 +02:00
parent 826df93955
commit bc4f7604a2
6 changed files with 271 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/common/ui-protocol.cpp
View file

@ -63,6 +63,8 @@ namespace stage {
const Symbol NODE_fork{"fork"};
const Symbol CLASS_timeline{"timeline"};
const Symbol CLASS_timeline_page{"timeline-page"};
const Symbol CLASS_timeline_body{"timeline-body"};
/** */

2
src/include/ui-protocol.hpp
View file

@ -102,6 +102,8 @@ namespace stage {
extern const Symbol NODE_fork;
extern const Symbol CLASS_timeline;
extern const Symbol CLASS_timeline_page;
extern const Symbol CLASS_timeline_body;
}// namespace stage

7
src/stage/timeline/body-canvas-widget.cpp
View file

@ -39,6 +39,7 @@
//#include "lib/format-string.hpp"
//#include "lib/format-cout.hpp"
#include "include/ui-protocol.hpp"
#include "common/advice.hpp"
#include "lib/util.hpp"
@ -246,7 +247,8 @@ namespace timeline {
BodyCanvasWidget::BodyCanvasWidget (DisplayManager& displayManager)
: Gtk::Box{Gtk::ORIENTATION_VERTICAL}
: Glib::ObjectBase("body") // enables use of custom CSS properties (on 'gtkmm__CustomObject_body')
, Gtk::Box{Gtk::ORIENTATION_VERTICAL}
, layout_{displayManager}
, profile_{}
, rootBody_{nullptr}
@ -254,6 +256,9 @@ namespace timeline {
, rulerCanvas_{makeRenderer<Grounding, RULER>(layout_,getProfile), makeRenderer<Overlay, RULER>(layout_,getProfile)}
, mainCanvas_ {makeRenderer<Grounding, BODY>(layout_,getProfile), makeRenderer<Overlay, BODY>(layout_,getProfile)}
{
get_style_context()->add_class(cuString{CLASS_timeline});
get_style_context()->add_class(cuString{CLASS_timeline_body});
// respond to any structure changes of the timeline by recomputing the TrackProfile
layout_.signalStructureChange_.connect (sigc::mem_fun (*this, &BodyCanvasWidget::slotStructureChange));

2
src/stage/timeline/timeline-widget.cpp
View file

@ -34,6 +34,7 @@
#include "stage/timeline/timeline-widget.hpp"
#include "stage/timeline/timeline-controller.hpp"
#include "stage/timeline/timeline-layout.hpp"
#include "include/ui-protocol.hpp"
//#include "stage/workspace/workspace-window.hpp"
//#include "stage/ui-bus.hpp"
@ -72,6 +73,7 @@ namespace timeline {
, layout_{new TimelineLayout{*this}}
, control_{new TimelineController{identity, trackID, nexus, *layout_}}
{
get_style_context()->add_class(cuString{CLASS_timeline_page});
show_all();
}

2
src/stage/workspace/ui-style.cpp
View file

@ -136,6 +136,8 @@ namespace workspace {
gtk_widget_path_iter_set_object_name (path.gobj(), pos, NODE_fork); // override the generic node name with a custom widget type "fork"
path.iter_add_class(pos, cuString{CLASS_timeline}); // decorate this CSS node with a CSS class ".timeline" (distinguish it from asset bins)
// deliberately we *do not* invoke path.iter_set_name(pos, "id") to add an #ID
for (int i=0; i<pos; ++i) // reset any state flags accidentally set (resulting in pseudo classes like ":backdrop")
gtk_widget_path_iter_set_state(path.gobj(), i, GTK_STATE_FLAG_NORMAL);
PStyleContext style = Gtk::StyleContext::create(); // create a new style context and configure it according to the path defined thus far
style->set_path (path);
styleAdvice_.setAdvice (style); // publish as Advice "style(trackBody)"

265
wiki/thinkPad.ichthyo.mm
View file

@ -7095,7 +7095,7 @@
<node CREATED="1504463020913" ID="ID_808284638" MODIFIED="1518487921063" TEXT="[optional] Gruppe"/>
<node CREATED="1504463028384" ID="ID_1928250888" MODIFIED="1518487921063" TEXT="View-ID"/>
</node>
<node CREATED="1504479185405" HGAP="50" ID="ID_50865654" MODIFIED="1538589849694" TEXT="abgeleitet aus Fokus-Koordinaten" VSHIFT="15">
<node CREATED="1504479185405" HGAP="50" ID="ID_50865654" MODIFIED="1563035910945" TEXT="abgeleitet aus Fokus-Koordinaten" VSHIFT="15">
<arrowlink COLOR="#a9a5cd" DESTINATION="ID_150523428" ENDARROW="Default" ENDINCLINATION="1440;-3055;" ID="Arrow_ID_1485937133" STARTARROW="None" STARTINCLINATION="1109;-37;"/>
<icon BUILTIN="info"/>
</node>
@ -18219,7 +18219,8 @@
<node CREATED="1563019380597" ID="ID_7366061" MODIFIED="1563019384050" TEXT="Kontrollstruktur"/>
</node>
<node CREATED="1563019137720" ID="ID_1085825572" MODIFIED="1563019142563" TEXT="systematisch">
<node CREATED="1563019146591" ID="ID_105242868" MODIFIED="1563019178642" TEXT="&quot;auf was k&#xf6;nnen CSS-Selektoren aufbauen&quot;?">
<node CREATED="1563019146591" ID="ID_105242868" MODIFIED="1563036084505" TEXT="&quot;auf was k&#xf6;nnen CSS-Selektoren aufbauen&quot;?">
<linktarget COLOR="#a9b4c1" DESTINATION="ID_105242868" ENDARROW="Default" ENDINCLINATION="1295;0;" ID="Arrow_ID_708537872" SOURCE="ID_180592409" STARTARROW="None" STARTINCLINATION="825;-325;"/>
<icon BUILTIN="yes"/>
</node>
<node CREATED="1563019196947" ID="ID_1289853928" MODIFIED="1563019204755" TEXT="Ankerpunkt">
@ -18251,8 +18252,9 @@
</body>
</html>
</richcontent>
<node CREATED="1563019476308" ID="ID_83481977" MODIFIED="1563021613503" TEXT=".timeline-page &gt; body.timeline fork.timeline">
<node COLOR="#435e98" CREATED="1563019476308" ID="ID_83481977" MODIFIED="1563044164753" TEXT=".timeline-page &gt; box.timeline-body fork.timeline">
<linktarget COLOR="#419bcf" DESTINATION="ID_83481977" ENDARROW="Default" ENDINCLINATION="666;0;" ID="Arrow_ID_1386111155" SOURCE="ID_1803180287" STARTARROW="None" STARTINCLINATION="-787;0;"/>
<font BOLD="true" NAME="SansSerif" SIZE="12"/>
</node>
</node>
</node>
@ -18611,6 +18613,7 @@
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1480606888860" HGAP="25" ID="ID_899101975" MODIFIED="1557498707225" TEXT="Implementierung" VGAP="11" VSHIFT="14">
<icon BUILTIN="pencil"/>
<node CREATED="1480606950372" ID="ID_1502878943" MODIFIED="1557498707225" TEXT="Grundstruktur">
<node CREATED="1563036503676" ID="ID_274320987" MODIFIED="1563036508677" TEXT="visuell/Layout">
<node CREATED="1480639404070" ID="ID_506539007" MODIFIED="1557498707225" TEXT="HeaderPane">
<node CREATED="1480639435010" ID="ID_892799964" MODIFIED="1557498707225" TEXT="Navigator"/>
<node CREATED="1480639438921" ID="ID_1668884794" MODIFIED="1557498707225" TEXT="Baum">
@ -18623,6 +18626,67 @@
<node CREATED="1480639429307" ID="ID_1922498247" MODIFIED="1557498707225" TEXT="Canvas"/>
</node>
</node>
<node CREATED="1563036487350" ID="ID_1370107301" MODIFIED="1563036492008" TEXT="custom-Widgets">
<node COLOR="#338800" CREATED="1562972742894" ID="ID_50010456" MODIFIED="1563044193887" TEXT="Namen f&#xfc;r die custom-widgets">
<linktarget COLOR="#3f4a94" DESTINATION="ID_50010456" ENDARROW="Default" ENDINCLINATION="-1046;66;" ID="Arrow_ID_1862548348" SOURCE="ID_340313615" STARTARROW="None" STARTINCLINATION="-1895;0;"/>
<icon BUILTIN="button_ok"/>
<node CREATED="1563035885483" ID="ID_180592409" MODIFIED="1563036084505" TEXT="Wunsch/Konzept">
<arrowlink DESTINATION="ID_105242868" ENDARROW="Default" ENDINCLINATION="1295;0;" ID="Arrow_ID_708537872" STARTARROW="None" STARTINCLINATION="825;-325;"/>
<node CREATED="1563036553387" ID="ID_1889445008" MODIFIED="1563036560952" TEXT="TimelineWidget selber?">
<node CREATED="1563036568256" ID="ID_1816733755" MODIFIED="1563036596587" TEXT="sollte besser ein &quot;paned&quot; bleiben">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
weil dies ggfs vom Theme her schon gestyled wird
</p>
</body>
</html>
</richcontent>
</node>
<node COLOR="#338800" CREATED="1563036619140" ID="ID_1483549704" MODIFIED="1563037392573" TEXT="aber Klasse: .timeline-page">
<icon BUILTIN="button_ok"/>
</node>
</node>
<node CREATED="1563019287444" ID="ID_1624037692" MODIFIED="1563043796072" TEXT="body.timeline">
<icon BUILTIN="stop-sign"/>
<node COLOR="#338800" CREATED="1563019321399" ID="ID_1793367255" MODIFIED="1563043799284" TEXT="fork.timeline">
<icon BUILTIN="button_ok"/>
</node>
<node CREATED="1563019330262" ID="ID_36986369" MODIFIED="1563043802584" TEXT="canvas.timeline">
<icon BUILTIN="button_cancel"/>
</node>
</node>
<node CREATED="1563043807392" ID="ID_994687888" MODIFIED="1563044102751" TEXT="Wunsch nur teilweise realisierbar">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
...denn die CSS-Node-Namen von Custom-Widgets kann man via GTKmm nicht &#228;ndern.
</p>
<p>
Das geht nur, wenn man das Custom-Widget direkt per C erzeugt,
</p>
<p>
weil der betreffende Aufruf gtk_widget_class_set_css_name (GTK_WIDGET_GET_CLASS(gobj()), &quot;my-node&quot;)
</p>
<p>
in der C &quot;class init function&quot; passieren mu&#223;
</p>
</body>
</html>
</richcontent>
<arrowlink COLOR="#bc86a6" DESTINATION="ID_1245820640" ENDARROW="Default" ENDINCLINATION="-1901;31;" ID="Arrow_ID_1120129058" STARTARROW="None" STARTINCLINATION="-2128;-72;"/>
<icon BUILTIN="stop-sign"/>
</node>
</node>
</node>
</node>
</node>
<node CREATED="1480606954115" ID="ID_1178000371" MODIFIED="1557498707225" TEXT="Struktur-Modell">
<icon BUILTIN="button_ok"/>
<node CREATED="1480725215087" ID="ID_212845679" MODIFIED="1557498707225" TEXT="erzeugen">
@ -21718,7 +21782,7 @@
<node CREATED="1562938985427" ID="ID_1430350400" MODIFIED="1562939000802" TEXT="und das Advice-System bietet hierf&#xfc;r die ad&#xe4;quate Infrastruktur"/>
</node>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1562972719033" ID="ID_1528071219" MODIFIED="1563020034710" TEXT="kl&#xe4;ren: ist der Style-Pfad sinnvoll / korrekt?">
<node COLOR="#435e98" CREATED="1562972719033" FOLDED="true" ID="ID_1528071219" MODIFIED="1563044223514" TEXT="kl&#xe4;ren: ist der Style-Pfad sinnvoll / korrekt?">
<linktarget COLOR="#46558a" DESTINATION="ID_1528071219" ENDARROW="Default" ENDINCLINATION="-639;0;" ID="Arrow_ID_1602346272" SOURCE="ID_678877446" STARTARROW="None" STARTINCLINATION="564;0;"/>
<icon BUILTIN="help"/>
<node COLOR="#435e98" CREATED="1562972764593" ID="ID_315266947" MODIFIED="1563033166705" TEXT="warum beginnt der Pfad mit dem Timeline-Widget?">
@ -21758,9 +21822,73 @@
</html>
</richcontent>
<linktarget COLOR="#a9b4c1" DESTINATION="ID_1632267547" ENDARROW="Default" ENDINCLINATION="502;0;" ID="Arrow_ID_211374997" SOURCE="ID_47205096" STARTARROW="None" STARTINCLINATION="255;50;"/>
<node COLOR="#435e98" CREATED="1563035526845" ID="ID_1747578312" MODIFIED="1563037376560" TEXT="warum haben die alle die Pseudo-Klasse :backdrop?">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
&quot;Widget is in a background toplevel window&quot;
</p>
</body>
</html>
</richcontent>
<arrowlink COLOR="#8aafdb" DESTINATION="ID_422408673" ENDARROW="Default" ENDINCLINATION="-430;209;" ID="Arrow_ID_384398411" STARTARROW="None" STARTINCLINATION="-1700;-117;"/>
<node CREATED="1563035800955" ID="ID_1644301957" MODIFIED="1563035821169" TEXT="vmt. wegen dem Zeitpunkt, an dem der Pfad konstruiert wird"/>
<node CREATED="1563035791620" ID="ID_1471340967" MODIFIED="1563035834509" TEXT="unsch&#xf6;n, aber nicht relevant">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
nur der letzte Node wird gegen pseudo-Klassen gematcht
</p>
</body>
</html>
</richcontent>
</node>
<node COLOR="#338800" CREATED="1563037328957" ID="ID_1150753033" MODIFIED="1563039434820" TEXT="man kann es aber (zur&#xfc;ck)setzen">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
&#160;&#160;&#160;&#160;for (uint i=0; i&lt;pos; ++i)
</p>
<p>
&#160;&#160;&#160;&#160;&#160;&#160;gtk_widget_path_iter_set_state(path.gobj(), i, GTK_STATE_FLAG_NORMAL);
</p>
</body>
</html>
</richcontent>
<icon BUILTIN="button_ok"/>
</node>
</node>
<node CREATED="1563043712231" ID="ID_680778611" MODIFIED="1563043724620" TEXT="&#xfc;berarbeitete Version">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
window.background box.vertical box[2/3].horizontal widget[2/2] widget paned.vertical widget box.vertical notebook[1/1].frame paned.horizontal.timeline-page box.vertical.timeline.timeline-body fork.timeline
</p>
</body>
</html>
</richcontent>
<icon BUILTIN="info"/>
</node>
</node>
<node COLOR="#338800" CREATED="1562972742894" ID="ID_340313615" MODIFIED="1563043738908" TEXT="man sollte die custom-widgets explizit benennen">
<arrowlink COLOR="#3f4a94" DESTINATION="ID_50010456" ENDARROW="Default" ENDINCLINATION="-1046;66;" ID="Arrow_ID_1862548348" STARTARROW="None" STARTINCLINATION="-1895;0;"/>
<icon BUILTIN="button_ok"/>
<node CREATED="1563043742703" ID="ID_1008105312" MODIFIED="1563043747776" TEXT="soweit es &#xfc;berhaupt ging"/>
<node CREATED="1563043748625" ID="ID_1963576119" MODIFIED="1563043767189" TEXT="C++ Custom-Widgets k&#xf6;nnen nicht ihren CSS-Node-Namen &#xe4;ndern">
<icon BUILTIN="smily_bad"/>
</node>
<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1562972742894" ID="ID_340313615" MODIFIED="1563033187300" TEXT="man sollte die custom-widgets explizit benennen">
<icon BUILTIN="flag-yellow"/>
</node>
</node>
</node>
@ -30976,7 +31104,7 @@
<node CREATED="1487273377603" ID="ID_1842094630" MODIFIED="1518487921088" TEXT="SpotLocator"/>
</node>
<node CREATED="1487272813119" ID="ID_1794274698" MODIFIED="1518487921088" TEXT="Bezug">
<node CREATED="1504460091831" ID="ID_150523428" MODIFIED="1538589849694" TEXT="Koordinatensystem">
<node CREATED="1504460091831" ID="ID_150523428" MODIFIED="1563035910945" TEXT="Koordinatensystem">
<linktarget COLOR="#a9a5cd" DESTINATION="ID_150523428" ENDARROW="Default" ENDINCLINATION="1440;-3055;" ID="Arrow_ID_1485937133" SOURCE="ID_50865654" STARTARROW="None" STARTINCLINATION="1109;-37;"/>
<node CREATED="1504462869149" ID="ID_248419130" MODIFIED="1518487921088" TEXT="beschreibt Zugangsweg">
<icon BUILTIN="yes"/>
@ -43517,6 +43645,24 @@
</node>
<node CREATED="1538706287605" ID="ID_811190435" LINK="https://developer.gnome.org/gtk3/stable/chap-css-properties.html" MODIFIED="1557498707238" TEXT="unterst&#xfc;tzte properties">
<icon BUILTIN="info"/>
<node CREATED="1563035652060" ID="ID_1461845755" MODIFIED="1563035657162" TEXT="State / Pseudo-Klassen">
<node CREATED="1563035659642" ID="ID_1776634695" MODIFIED="1563035663793" TEXT=":backdrop">
<node CREATED="1563035576188" ID="ID_422408673" LINK="https://developer.gnome.org/gtk3/stable/gtk3-Standard-Enumerations.html#GtkStateFlags" MODIFIED="1563035773257" TEXT="GtkStateFlags::GTK_STATE_FLAG_BACKDROP">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
&quot;Widget is in a background toplevel window&quot;
</p>
</body>
</html>
</richcontent>
<linktarget COLOR="#8aafdb" DESTINATION="ID_422408673" ENDARROW="Default" ENDINCLINATION="-430;209;" ID="Arrow_ID_384398411" SOURCE="ID_1747578312" STARTARROW="None" STARTINCLINATION="-1700;-117;"/>
</node>
</node>
</node>
</node>
</node>
<node CREATED="1537575947102" ID="ID_161652920" LINK="https://developer.gnome.org/gtk3/stable/GtkStyleContext.html" MODIFIED="1561741931982" TEXT="StyleContext">
@ -43604,7 +43750,93 @@
</node>
</node>
<node CREATED="1537658818388" ID="ID_1554071957" MODIFIED="1537658827087" TEXT="M&#xf6;glichkeiten">
<node CREATED="1537577389028" ID="ID_1690083237" MODIFIED="1537577400334" TEXT="k&#xf6;nnen einen eigenen Widget-Namen setzen"/>
<node CREATED="1537577389028" ID="ID_1690083237" MODIFIED="1563037767739" TEXT="k&#xf6;nnen einen eigenen Widget-Namen setzen">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
this-&gt;set_name(&quot;my-widget&quot;)
</p>
</body>
</html>
</richcontent>
<node CREATED="1563038427512" ID="ID_887791641" MODIFIED="1563038432987" TEXT="Vorsicht: das ist die #id"/>
<node CREATED="1563038460235" ID="ID_1245820640" MODIFIED="1563043928806" TEXT="GTKmm-definierte custom-Widgets k&#xf6;nnen nicht ihren CSS-node-Namen &#xe4;ndern">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
(2019 / Debian-Stretch)
</p>
<p>
Das schlie&#223;e ich aus einem Kommentar im GTKmm-Tutorial
</p>
<p>
&#160;&#160;// Set the widget name to use in the CSS file.
</p>
<p>
&#160;&#160;set_name(&quot;my-widget&quot;);
</p>
<p>
</p>
<p>
&#160;&#160;// If you make a custom widget in C code, based on gtk+'s GtkWidget, there is
</p>
<p>
&#160;&#160;// an alternative to gtk_widget_set_name(): Set a CSS name for your custom
</p>
<p>
&#160;&#160;// class (instead of the widget instance) with gtk_widget_class_set_css_name()
</p>
<p>
&#160;&#160;// (new in gtk+ 3.19.1). That's not possible for custom widgets defined in gtkmm.
</p>
<p>
&#160;&#160;// gtk_widget_class_set_css_name() must be called in the class init function,
</p>
<p>
&#160;&#160;// which can't be customized, when the widget is based on gtkmm's Gtk::Widget.
</p>
<p>
&#160;&#160;//
</p>
<p>
&#160;&#160;// Another alternative: The custom widget inherits the CSS name &quot;widget&quot; from
</p>
<p>
&#160;&#160;// GtkWidget. That name can be used in the CSS file. This is not a very good
</p>
<p>
&#160;&#160;// alternative. GtkWidget's CSS name is not documented. It can probably be
</p>
<p>
&#160;&#160;// changed or removed in the future.
</p>
</body>
</html>
</richcontent>
<linktarget COLOR="#bc86a6" DESTINATION="ID_1245820640" ENDARROW="Default" ENDINCLINATION="-1901;31;" ID="Arrow_ID_1120129058" SOURCE="ID_994687888" STARTARROW="None" STARTINCLINATION="-2128;-72;"/>
<node CREATED="1563042271596" ID="ID_60542269" MODIFIED="1563042285395" TEXT="man kann zwar aufrufen...">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
gtk_widget_class_set_css_name (GTK_WIDGET_GET_CLASS(gobj()), &quot;body&quot;);
</p>
</body>
</html>
</richcontent>
</node>
<node CREATED="1563042287071" ID="ID_1579813090" MODIFIED="1563042298109" TEXT="aber das kommt zu sp&#xe4;t und bleibt wirkungslos f&#xfc;r das CSS"/>
</node>
</node>
<node CREATED="1537577364840" ID="ID_927285198" MODIFIED="1537577379929" TEXT="k&#xf6;nnen custom-Properties haben">
<node CREATED="1537577410065" ID="ID_1611025546" MODIFIED="1537577422244" TEXT="das ist ein Proxy-Member"/>
<node CREATED="1537577424000" ID="ID_742914876" MODIFIED="1537577434658" TEXT="onRealize kann der Wert abgeholt werden"/>
@ -43619,6 +43851,23 @@
</node>
</node>
</node>
<node CREATED="1563042875607" ID="ID_1514342953" MODIFIED="1563042880140" TEXT="Interna">
<node CREATED="1563042881862" ID="ID_96389801" MODIFIED="1563042882948" TEXT="GtkWidgetClass">
<node CREATED="1563042885675" ID="ID_1605857107" MODIFIED="1563042893560" TEXT="ziemlich obskures internes Detail">
<icon BUILTIN="smily_bad"/>
</node>
<node CREATED="1563042941749" ID="ID_1890840480" MODIFIED="1563042972361" TEXT="wohl eine GLib &quot;subklasse&quot; der Widget-&quot;klasse&quot;"/>
<node CREATED="1563042901556" ID="ID_252353292" MODIFIED="1563043017352" TEXT="man bekommt sie so: GTK_WIDGET_GET_CLASS(gobj())">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1563042990783" ID="ID_987465821" MODIFIED="1563043007260" TEXT="Verh&#xe4;ltnis zur C++ Widget_Class?">
<icon BUILTIN="help"/>
<node CREATED="1563043008460" ID="ID_30159127" MODIFIED="1563043013198" TEXT="ist mir nicht klar">
<icon BUILTIN="smily_bad"/>
</node>
</node>
</node>
</node>
</node>
</node>
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