From 45f4acf858cc269e208ceb371c3dd521bf0492a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sun, 3 Nov 2013 20:42:34 +0100
Subject: [PATCH] Don't set image on button if it is still the same

It fixes also a strange behavior of GTK that doesn't display any images if the
icon is changed before it is realized.

issue3191
review1451002
(transplanted from 4bc44691dc89dfd7802c9d84bbb466f98038bb75)
---
 tryton/common/button.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tryton/common/button.py b/tryton/common/button.py
index 2adae35ba6..5a695e8cc3 100644
--- a/tryton/common/button.py
+++ b/tryton/common/button.py
@@ -17,6 +17,11 @@ class Button(gtk.Button):
         self._set_icon(attrs.get('icon'))
 
     def _set_icon(self, stock):
+        image = self.get_image()
+        if not image and not stock:
+            return
+        elif image and image.get_stock()[0] == stock:
+            return
         if not stock:
             self.set_image(gtk.Image())
             return