[pitivi: 5/16] Add track-object-added and track-object-removed signals to TimelineObject.

[Edward Hervey <edwardrv src gnome org>]

commit ffd72a236b9ec503d477d4d5cc38810c3c177487
Author: Alessandro Decina <alessandro d gmail com>
Date:   Fri Jul 3 17:58:31 2009 +0200

    Add track-object-added and track-object-removed signals to TimelineObject.

 pitivi/timeline/timeline.py |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/timeline/timeline.py b/pitivi/timeline/timeline.py
index 2adb1c0..5550955 100644
--- a/pitivi/timeline/timeline.py
+++ b/pitivi/timeline/timeline.py
@@ -81,7 +81,9 @@ class TimelineObject(Signallable, Loggable):
         'out-point-changed': ['in-point'],
         'media-duration-changed': ['media-duration'],
         'priority-changed': ['priority'],
-        'selected-changed' : ['state']
+        'selected-changed' : ['state'],
+        'track-object-added': ["track_object"],
+        'track-object-removed': ["track_object"],
     }
 
     DEFAULT_START = 0
@@ -413,6 +415,8 @@ class TimelineObject(Signallable, Loggable):
         obj.timeline_object = self
         self.track_objects.append(obj)
 
+        self.emit("track-object-added", obj)
+
     def removeTrackObject(self, obj):
         """
         Remove the given object from the list of controlled C{TrackObject}.
@@ -430,6 +434,8 @@ class TimelineObject(Signallable, Loggable):
         except ValueError:
             raise TimelineError()
 
+        self.emit("track-object-removed", obj)
+
 class Selection(Signallable):
     """
     A collection of L{TimelineObject}.