[gtk+] Fix for bug 672961 - Custom theme can crash apps with GtkEntryCompletion

[Joanmarie Diggs <joanied src gnome org>]

commit 94dbefda1c5da3d8b8265593c686f5deee24e71c
Author: Benjamin Otte <otte redhat com>
Date:   Tue Mar 27 20:29:56 2012 -0400

    Fix for bug 672961 - Custom theme can crash apps with GtkEntryCompletion

 gtk/gtkentrycompletion.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkentrycompletion.c b/gtk/gtkentrycompletion.c
index bfaaa1c..8367ed9 100644
--- a/gtk/gtkentrycompletion.c
+++ b/gtk/gtkentrycompletion.c
@@ -1513,7 +1513,9 @@ _gtk_entry_completion_resize_popup (GtkEntryCompletion *completion)
   monitor_num = gdk_screen_get_monitor_at_window (screen, window);
   gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
 
-  if (y > monitor.height / 2)
+  if (height == 0)
+    items = 0;
+  else if (y > monitor.height / 2)
     items = MIN (matches, (((monitor.y + y) - (actions * action_height)) / height) - 1);
   else
     items = MIN (matches, (((monitor.height - y) - (actions * action_height)) / height) - 1);