Signal
GtkOverlay::get-child-position
Declaration
gboolean
get_child_position (
GtkOverlay* self,
GtkWidget* widget,
GdkRectangle allocation,
gpointer user_data
)
Description [src]
The ::get-child-position signal is emitted to determine
the position and size of any overlay child widgets. A
handler for this signal should fill allocation with
the desired position and size for widget, relative to
the ‘main’ child of overlay.
The default handler for this signal uses the widget‘s
halign and valign properties to determine the position
and gives the widget its natural size (except that an
alignment of 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 |
Parameters
widget-
Type:
GtkWidgetThe child widget to position.
The data is owned by the caller of the function. allocation-
Type:
GdkRectangleReturn location for the allocation.
The argument will be set by the function.