[pitivi] timeline/elements, utils/widgets: reset keyframes curve properly.

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

commit 5fef7a6fafa526f708dcc383f0e33817ee2b7ea5
Author: Mathieu Duponchelle <mathieu duponchelle epitech eu>
Date:   Fri Jul 5 01:32:48 2013 +0200

    timeline/elements, utils/widgets: reset keyframes curve properly.

 pitivi/timeline/elements.py |   13 +++++++++----
 pitivi/utils/widgets.py     |    1 +
 2 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/pitivi/timeline/elements.py b/pitivi/timeline/elements.py
index d9eec67..ef7e444 100644
--- a/pitivi/timeline/elements.py
+++ b/pitivi/timeline/elements.py
@@ -425,14 +425,19 @@ class TimelineElement(Clutter.Actor, Zoomable):
             if not (element.set_control_source(source, propname.name, "direct")):
                 print "There was something like a problem captain"
                 return
-            val = float(propname.default_value) / (propname.maximum - propname.minimum)
-            source.set(self.bElement.props.in_point, val)
-            source.set(self.bElement.props.duration, val)
             binding = element.get_control_binding(propname.name)
+
         self.binding = binding
-        self.source = self.binding.props.control_source
         self.prop = propname
         self.keyframedElement = element
+        self.source = self.binding.props.control_source
+
+        if len(self.source.get_all()) < 2:
+            self.source.unset_all()
+            val = float(propname.default_value) / (propname.maximum - propname.minimum)
+            self.source.set(self.bElement.props.in_point, val)
+            self.source.set(self.bElement.props.duration, val)
+
         self.updateKeyframes()
 
     def hideKeyframes(self):
diff --git a/pitivi/utils/widgets.py b/pitivi/utils/widgets.py
index b1a73a8..183a327 100644
--- a/pitivi/utils/widgets.py
+++ b/pitivi/utils/widgets.py
@@ -977,6 +977,7 @@ class GstElementSettingsWidget(Gtk.VBox, Loggable):
                 if hasattr(track_element, "ui_element") and track_type == track_element.get_track_type():
                     binding.props.control_source.unset_all()
                     track_element.ui_element.updateKeyframes()
+            self.resetShowKeyframesButton()
 
         widget.set_sensitive(True)
         widget.setWidgetToDefault()