[pitivi] previewers: stop waveforms and thumbnails generation when removing clips

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

commit 1de8d960edc79fdbc377df684c6d276ab23dc85b
Author: Mathieu Duponchelle <mduponchelle1 gmail com>
Date:   Sun Oct 6 23:38:03 2013 +0200

    previewers: stop waveforms and thumbnails generation when removing clips

 pitivi/timeline/previewers.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/timeline/previewers.py b/pitivi/timeline/previewers.py
index ddcbcef..8cd55c1 100644
--- a/pitivi/timeline/previewers.py
+++ b/pitivi/timeline/previewers.py
@@ -513,6 +513,7 @@ class VideoPreviewer(Clutter.ScrollActor, PreviewGenerator, Zoomable, Loggable):
         PreviewGenerator.emit(self, "done")
 
     def cleanup(self):
+        self.stopGeneration()
         Zoomable.__del__(self)
 
 
@@ -988,6 +989,7 @@ class AudioPreviewer(Clutter.Actor, PreviewGenerator, Zoomable, Loggable):
         PreviewGenerator.emit(self, "done")
 
     def cleanup(self):
+        self.stopGeneration()
         self.canvas.disconnect_by_func(self._drawContentCb)
         self.timeline.disconnect_by_func(self._scrolledCb)
         Zoomable.__del__(self)