[pitivi] Always have the correct number of effects playing in the composition

[Edward Hervey <edwardrv src gnome org>]

commit 0679d026b8e0725afec409269df7177a76758496
Author: Thibault Saunier <tsaunier gnome org>
Date:   Mon Jul 19 15:05:33 2010 -0400

    Always have the correct number of effects playing in the composition

 pitivi/ui/timeline.py |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/pitivi/ui/timeline.py b/pitivi/ui/timeline.py
index 516a23a..2cf7b8c 100644
--- a/pitivi/ui/timeline.py
+++ b/pitivi/ui/timeline.py
@@ -412,9 +412,11 @@ class Timeline(gtk.Table, Loggable, Zoomable):
 ## Drag and Drop callbacks
 
     def _dragMotionCb(self, unused, context, x, y, timestamp):
-        self.warning("self._factories:%r, self._temp_objects:%r",
+        self.warning("self._factories:%r, self._temp_objects:%r, \
+                     self._temp_effect %r",
                      not not self._factories,
-                     not not self._temp_objects)
+                     not not self._temp_objects,
+                     not not self._temp_effect)
 
         if self._factories is None:
             if  context.targets in DND_EFFECT_LIST:
@@ -435,6 +437,7 @@ class Timeline(gtk.Table, Loggable, Zoomable):
                     if self.timeline.getObjsToAddEffectTo(self.pixelToNs(x), priority) != tmp_timeline_objs:
                         for timeline_obj, track_obj in self._temp_effect:
                             timeline_obj.removeTrackObject(track_obj)
+                            track_obj.track.removeTrackObject(track_obj)
                         self._addEffect(x, y, context.targets)
                 else:
                     self._addEffect(x, y, context.targets)