[pitivi] Fix 'move to last position' for audio layers

[Jean-FranÃois Fortin Tam <jfft src gnome org>]

commit 09c0cdc42800e4543e8a676acab758297d0a5db0
Author: Paul Lange <palango gmx de>
Date:   Sun Jul 15 22:32:36 2012 +0200

    Fix 'move to last position' for audio layers

 pitivi/timeline/layer.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/timeline/layer.py b/pitivi/timeline/layer.py
index d90d194..bdcdf03 100644
--- a/pitivi/timeline/layer.py
+++ b/pitivi/timeline/layer.py
@@ -219,7 +219,10 @@ class BaseLayerControl(gtk.VBox, Loggable):
         elif step == -2:
             index = 0
         else:
-            index = self.layer.get_timeline().get_layers()
+            index = len(self.layer.get_timeline().get_layers())
+            # if audio, set last position
+            if type(self) == AudioLayerControl:
+                index *= 2
 
         self._app.gui.timeline_ui.controls.moveControlWidget(self, index)