[gtk+/overlay: 20/34] overlay: do not allocate anything if main_widget is NULL

[Matthias Clasen <matthiasc src gnome org>]

commit 4d6f9149f895ef318326981af6c5b875bb004e7b
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Fri May 27 10:37:32 2011 +0200

    overlay: do not allocate anything if main_widget is NULL

 gtk/gtkoverlay.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkoverlay.c b/gtk/gtkoverlay.c
index 819021e..a98803c 100644
--- a/gtk/gtkoverlay.c
+++ b/gtk/gtkoverlay.c
@@ -240,6 +240,9 @@ gtk_overlay_size_allocate (GtkWidget     *widget,
 
   GTK_WIDGET_CLASS (gtk_overlay_parent_class)->size_allocate (widget, allocation);
 
+  if (priv->main_widget == NULL)
+    return;
+
   /* main widget allocation */
   main_alloc.x = 0;
   main_alloc.y = 0;