From e2c8a95af6d223df65b6dc62a85b696c5de1441b Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Tue, 7 May 2013 09:28:30 +0200
Subject: [PATCH] GtkStack: Fix double-draw in crossfade

We should only draw the cross-fade on the bin window, not doing this
was causing us to draw it multiple times using ADD which resulted
in weird colors.
---
 gtk/gtkstack.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index 3d65265802..e890610d43 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -1437,7 +1437,8 @@ gtk_stack_draw (GtkWidget *widget,
   GtkStackPrivate *priv = stack->priv;
   cairo_t *pattern_cr;
 
-  if (priv->visible_child)
+  if (priv->visible_child &&
+      gtk_cairo_should_draw_window (cr, priv->bin_window))
     {
       if (priv->transition_pos < 1.0)
         {
@@ -1475,7 +1476,7 @@ gtk_stack_draw (GtkWidget *widget,
             }
 
         }
-      else if (gtk_cairo_should_draw_window (cr, priv->bin_window))
+      else
         gtk_container_propagate_draw (GTK_CONTAINER (stack),
                                       priv->visible_child->widget,
                                       cr);