[kupfer] icon_names: Define repr_key for sources

[Ulrik Sverdrup <usverdrup src gnome org>]

commit 0209ef903f580f4976837565586eec327ae97890
Author: Ulrik Sverdrup <ulrik sverdrup gmail com>
Date:   Thu Jan 14 06:55:23 2010 +0100

    icon_names: Define repr_key for sources

 contrib/icon_names.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/contrib/icon_names.py b/contrib/icon_names.py
index bb59246..85a98cd 100644
--- a/contrib/icon_names.py
+++ b/contrib/icon_names.py
@@ -89,6 +89,8 @@ class IconThemeCategorySource (IconNamesSource):
 		IconNamesSource.__init__(self, category or "All Icons")
 		self.category = category
 
+	def repr_key(self):
+		return self.category
 	def _get_all_items(self):
 		it = gtk.icon_theme_get_default()
 		for icon_name in it.list_icons(self.category):