benn/lumiera_
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Timeline: GTK-Code to construct a "virtal" CSS path (see #1168)

Browse source 
This code was cooked up by following the example of gtk_widget_path_append_for_widget()
See gtkwidget.c, 16413
This commit is contained in:
Fischlurch 2019-07-12 23:39:32 +02:00
parent 60d28fea2c
commit d5cbeab2d8
2 changed files with 79 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
src/stage/timeline/timeline-layout.cpp
View file

@ -64,7 +64,21 @@ namespace timeline {
lumiera::advice::Provision<PStyleContext> styleAdvice{"style(trackBody)"};
Gtk::WidgetPath path = anchorWidget.get_path();
////////////////////////////////////////////////////////////////////////////TICKET #1201 : add code here to build a virtual path and construct a StyleContext. See gtk_widget_path_append_for_widget() in gtkwidget.c, 16413
// build a "virtual" CSS node to represent the track scope
GType scopeNode = Gtk::Box::get_type();
int pos = path.path_append_type (scopeNode);
// override the generic node name with a custom widget type
gtk_widget_path_iter_set_object_name (path.gobj(), pos, "TrackScope");
// deliberately we don't invoke path.iter_set_name(pos, "id") add an #ID
path.iter_add_class(pos, "timeline");
// for reference, see gtk_widget_path_append_for_widget() in in gtkwidget.c, line 16413
// create a new style context and configure it according to the defined path
PStyleContext style = Gtk::StyleContext::create();
style->set_path (path);
// publish as Advice "style(trackBody)"
styleAdvice.setAdvice (style);
INFO (stage, "Body-CSS: path=%s", util::cStr (path.to_string())); ////////////////////////TICKET #1201 : this yields "paned:dir-ltr.horizontal box:dir-ltr.vertical TrackScope.timeline"
}
}

64
wiki/thinkPad.ichthyo.mm
View file

@ -21492,6 +21492,70 @@
</node>
</node>
</node>
<node CREATED="1562947149512" ID="ID_1788757764" MODIFIED="1562947168297" TEXT="was/wie kann man an den Pfad anh&#xe4;ngen?">
<node CREATED="1562947206390" ID="ID_858425792" MODIFIED="1562947209292" TEXT="WidgetPath::path_append_type(GType)"/>
<node CREATED="1562947226168" ID="ID_1423368720" MODIFIED="1562947248239" TEXT="wie kann ich einen GType konstruieren, wenn es das Widget garnicht gibt??">
<node CREATED="1562948746502" ID="ID_1583179714" MODIFIED="1562968161548" TEXT="statische Typ-Funktion des jeweiligen Widget nutzen">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1562948800171" ID="ID_191911870" MODIFIED="1562968152931" TEXT="static GType &#x9;get_type ()">
<icon BUILTIN="info"/>
</node>
</node>
<node CREATED="1562947895737" ID="ID_1560270353" MODIFIED="1562947901380" TEXT="zur Referenz...">
<node CREATED="1562947912197" ID="ID_613381518" MODIFIED="1562948067345" TEXT="gtk_widget_path_append_type() -- gtkwidgetpath.c, 410">
<node CREATED="1562947977945" ID="ID_612431307" MODIFIED="1562947981836" TEXT="macht eine GtkCssNodeDeclaration"/>
<node CREATED="1562947983729" ID="ID_608086934" MODIFIED="1562947991697" TEXT="setzt in dieser den gegebenen GType"/>
<node CREATED="1562947992640" ID="ID_1261874584" MODIFIED="1562948009009" TEXT="h&#xe4;ngt sie an das Path-Array an"/>
</node>
<node CREATED="1562948055919" ID="ID_282921775" MODIFIED="1562948098526" TEXT="gtk_widget_path_append_for_widget -- gtkwidget.c, 16413">
<node CREATED="1562948290392" ID="ID_1190594021" MODIFIED="1562948299890" TEXT="macht append_type(GType)"/>
<node CREATED="1562948303278" ID="ID_859838875" MODIFIED="1562948308633" TEXT="set object name">
<node CREATED="1562948491524" ID="ID_405796973" MODIFIED="1562948504665" TEXT="&#xfc;berschreibt den Typ beim CSS-Match"/>
</node>
<node CREATED="1562948312341" ID="ID_707638809" MODIFIED="1562948314536" TEXT="set name"/>
<node CREATED="1562948324645" ID="ID_1760607712" MODIFIED="1562948327590" TEXT="set state"/>
<node CREATED="1562948334875" ID="ID_1415018307" MODIFIED="1562948338037" TEXT="add classes"/>
</node>
</node>
</node>
</node>
<node CREATED="1562969880923" ID="ID_1675178851" MODIFIED="1562969892966" TEXT="damit einen Gtk::StyleContext konfigurieren">
<node CREATED="1562969894183" ID="ID_1066073394" MODIFIED="1562969914243" TEXT="StyleContext per Factory erzeugen">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
StyleContext::create()
</p>
</body>
</html>
</richcontent>
</node>
<node CREATED="1562970409637" ID="ID_156221819" MODIFIED="1562970782190" STYLE="fork" TEXT="ihm den Pfad zuweisen">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
&#160;void set_path(const WidgetPath&amp; path);
</p>
<p>
</p>
<p>
</p>
<p>
As a&#160;consequence, the style will be regenerated to match&#160;the new given path.
</p>
</body>
</html>
</richcontent>
</node>
</node>
</node>
</node>