gboolean get_child_position ( GtkOverlay* self, GtkWidget* widget, GdkRectangle* allocation, gpointer user_data )
Emitted to determine the position and size of any overlay child widgets.
A handler for this signal should fill
the desired position and size for
widget, relative to
the ‘main’ child of
The default handler for this signal uses the
halign and valign properties to determine the position
and gives the widget its natural size (except that an
GTK_ALIGN_FILL will cause the overlay to
be full-width/height). If the main child is a
GtkScrolledWindow, the overlays are placed relative
to its contents.
|Default handler: |
The default handler is called after the handlers added via
|Available since: 4.0|