[pitivi] curve.py: also set focus keyframe on enter events

[Edward Hervey <edwardrv src gnome org>]

commit d944c4606d8e07c623f5180a0d85b65783ee331a
Author: Brandon Lewis <brandon_lewis berkeley edu>
Date:   Mon Aug 17 13:50:50 2009 -0700

    curve.py: also set focus keyframe on enter events
    keyframes should now be much easier to manipulate
    which should close bug 591571

 pitivi/ui/curve.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/ui/curve.py b/pitivi/ui/curve.py
index ed316b9..81f6809 100644
--- a/pitivi/ui/curve.py
+++ b/pitivi/ui/curve.py
@@ -116,6 +116,9 @@ class Curve(goocanvas.ItemSimple, goocanvas.Item, View, Zoomable):
             return time, value
 
         def enter(self, item ,target):
+            coords = self.from_item_event(item, self._last_event)
+            self._kf = self._view.findKeyframe(coords)
+            self._view.setFocusedKf(self._kf)
             self._view.focus()
 
         def leave(self, item, target):