Merge lp:~kiwinote/software-center/bug959530 into lp:software-center

[Kiwinote]

this branch adapts s-c to the new gtk api as recently changed by http://git.gnome.org/browse/pygobject/commit/?id=8ca828825a2c47080055c5f986979aac8da9a93f

=== modified file 'debian/changelog'
--- debian/changelog	2012-03-20 09:06:01 +0000
+++ debian/changelog	2012-03-20 10:02:23 +0000
@@ -85,13 +85,13 @@
       opt-in panel
 
   [ Kiwinote ]
-  * lp:~kiwinote/software-center/less-is-more:
-    - This branch clears out most of the unused code/files
-      that can be found in the sc codebase
-  * lp:~kiwinote/software-center/less-is-more2:
-    - this removes unused code from the tree
+  * lp:~kiwinote/software-center/less-is-more,
+    lp:~kiwinote/software-center/less-is-more2:
+    - clean out a bunch of unused code / files
+  * software-center/ui/gtk3/widgets/apptreeview.py:
+    - play catchup with Gtk overrides (LP: #959530)
 
- -- Gary Lasker <[e-mail]>  Mon, 19 Mar 2012 17:15:23 -0400
+ -- Kiwinote <[e-mail]>  Tue, 20 Mar 2012 09:56:52 +0000
 
 software-center (5.1.12) precise; urgency=low
 

=== modified file 'softwarecenter/ui/gtk3/widgets/apptreeview.py'
--- softwarecenter/ui/gtk3/widgets/apptreeview.py	2012-03-13 17:13:27 +0000
+++ softwarecenter/ui/gtk3/widgets/apptreeview.py	2012-03-20 10:02:23 +0000
@@ -143,7 +143,9 @@
         self.expanded_path = path
 
         if old is not None:
-            ok, start, end = self.get_visible_range()
+            res = self.get_visible_range()
+            if res:
+                start, end = res
             if (start and start.compare(old) != -1) or \
                (end and end.compare(old) != 1):
                 self._needs_collapse.append(old)