Class
GtkWidgetPaintable
Description [src]
final class Gtk.WidgetPaintable : GObject.Object
implements Gdk.Paintable {
/* No available fields */
}GtkWidgetPaintable is a GdkPaintable that displays the contents
of a widget.
GtkWidgetPaintable will also take care of the widget not being in a
state where it can be drawn (like when it isn’t shown) and just draw
nothing or where it does not have a size (like when it is hidden) and
report no size in that case.
Of course, GtkWidgetPaintable allows you to monitor widgets for size
changes by emitting the GdkPaintable::invalidate-size signal
whenever the size of the widget changes as well as for visual changes by
emitting the GdkPaintable::invalidate-contents signal whenever
the widget changes.
You can use a GtkWidgetPaintable everywhere a GdkPaintable is allowed,
including using it on a GtkPicture (or one of its parents) that it was
set on itself via gtk_picture_set_paintable(). The paintable will take care
of recursion when this happens. If you do this however, ensure that the
GtkPicture:can-shrink property is set to TRUE or you might
end up with an infinitely growing widget.