[pitivi: 3/9] track.py: interpolator now has public lower, upper, and range properties

[Edward Hervey <edwardrv src gnome org>]

commit ba1618b940ee19baa8a76d64c4c604e4d0c11dd1
Author: Brandon Lewis <brandon_lewis berkeley edu>
Date:   Mon Jul 27 11:41:16 2009 -0700

    track.py: interpolator now has public lower, upper, and range properties

 pitivi/timeline/track.py |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)
---
diff --git a/pitivi/timeline/track.py b/pitivi/timeline/track.py
index 8556a7e..c19472d 100644
--- a/pitivi/timeline/track.py
+++ b/pitivi/timeline/track.py
@@ -136,14 +136,19 @@ class Interpolator(Signallable, Loggable):
         'keyframe-moved' : ['keyframe'],
     }
 
-    def __init__(self, trackobject, element, prop):
+    def __init__(self, trackobject, element, prop, minimum=None, maximum=None):
         Loggable.__init__(self)
         self.debug("track:%r, element:%r, property:%r", trackobject, element, prop)
         self._keyframes = []
-        # FIXME: get this from the property's param spec
-        # NOTE: keyframes necessarily work only on a closed range
-        self.lower = 0
-        self.upper = 1
+
+        if minimum is None:
+            minimum = prop.minimum
+        if maximum is None:
+            maximum = prop.maximum
+        assert not ((minimum is None) or (maximum is None))
+        self.lower = minimum
+        self.upper = maximum
+        self.range = maximum - minimum
 
         # FIXME: don't necessarily want to create separate controllers for
         # each Interpolator. We should instead create a ControlSource for each