This signal is emitted when a widget is supposed to render itself.
The widget's top left corner must be painted at the origin of
the passed in context and be sized to the values returned by
getAllocatedWidth() and getAllocatedHeight().
Signal handlers connected to this signal can modify the cairo
context passed as cr in any way they like and don't need to
restore it. The signal emission takes care of calling Context.save()
before and Context.restore() after invoking the handler.
The signal handler will get a cr with a clip region already set to the
widget's dirty region, i.e. to the area that needs repainting. Complicated
widgets that want to avoid redrawing themselves completely can get the full
extents of the clip region with gdk.cairo.getClipRectangle(), or they can
get a finer-grained representation of the dirty region with
Context.copyClipRectangleList().
Return true to stop other handlers from being invoked for the event,
false to propagate the event further.
This signal is emitted when a widget is supposed to render itself. The widget's top left corner must be painted at the origin of the passed in context and be sized to the values returned by getAllocatedWidth() and getAllocatedHeight().
Signal handlers connected to this signal can modify the cairo context passed as cr in any way they like and don't need to restore it. The signal emission takes care of calling Context.save() before and Context.restore() after invoking the handler.
The signal handler will get a cr with a clip region already set to the widget's dirty region, i.e. to the area that needs repainting. Complicated widgets that want to avoid redrawing themselves completely can get the full extents of the clip region with gdk.cairo.getClipRectangle(), or they can get a finer-grained representation of the dirty region with Context.copyClipRectangleList().
Return true to stop other handlers from being invoked for the event, false to propagate the event further.
Since 3.0