GtkWidget: add adjust_size_request adjust_size_allocation virtual funcs

Use these new methods to handle set_size_request (aka aux_info)
inside gtkwidget.c, instead of having external code mess with it.

The virtual functions can be used for other purposes in the
future. For example, GtkContainer::border_width could be
automatically implemented for all container subclasses.

1 files changed, 9 insertions, 0 deletions

diff --git a/gtk/gtkwidget.h b/gtk/gtkwidget.h
index b413e0d421..66d3f2737c 100644
--- a/gtk/gtkwidget.h
+++ b/gtk/gtkwidget.h
@@ -473,6 +473,15 @@ struct _GtkWidgetClass
 				       gint        y,
 				       gboolean    keyboard_tooltip,
 				       GtkTooltip *tooltip);
+
+  void         (* adjust_size_request)    (GtkWidget         *widget,
+                                           GtkOrientation     orientation,
+                                           gint               for_size,
+                                           gint              *minimum_size,
+                                           gint              *natural_size);
+  void         (* adjust_size_allocation) (GtkWidget         *widget,
+                                           GtkAllocation     *allocation);
+
   /* Signals without a C default handler class slot:
    * gboolean	(*damage_event)	(GtkWidget      *widget,
    *                             GdkEventExpose *event);