[pitivi] Make dragging a single item select it first.

[Edward Hervey <edwardrv src gnome org>]

commit 90989bbafaa75238a932394b3d026ea50026859e
Author: Alessandro Decina <alessandro d gmail com>
Date:   Mon Jun 29 18:47:06 2009 +0200

    Make dragging a single item select it first.
    
    This makes dragging more intuitive, at least to me.

 pitivi/ui/trackobject.py |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/ui/trackobject.py b/pitivi/ui/trackobject.py
index 9b434ba..06ff164 100644
--- a/pitivi/ui/trackobject.py
+++ b/pitivi/ui/trackobject.py
@@ -189,6 +189,11 @@ class TrackObject(View, goocanvas.Group, Zoomable):
             self._offsets = {}
             self._min_start = 0
             self._min_pri = 0
+
+            if len(self._view.timeline.selection) <= 1:
+                self._view.timeline.setSelectionToObj(self._view.element,
+                        SELECT)
+
             # calculate offsets to selected clips
             if element.selected:
                 for obj in timeline.selection.getSelectedTrackObjs():