[pitivi: 14/18] mainwindow.py: set zoom ratio when adding the first clips to the timeline

[Edward Hervey <edwardrv src gnome org>]

commit 24ccab553243e50a0b53e668cb5978a774b72d59
Author: Brandon Lewis <brandon_lewis alum berkeley edu>
Date:   Thu Oct 29 18:27:05 2009 -0700

    mainwindow.py: set zoom ratio when adding the first clips to the timeline
    closes bug 595362

 pitivi/ui/mainwindow.py |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/ui/mainwindow.py b/pitivi/ui/mainwindow.py
index 41b60bf..6d18eb0 100644
--- a/pitivi/ui/mainwindow.py
+++ b/pitivi/ui/mainwindow.py
@@ -177,6 +177,7 @@ class PitiviMainWindow(gtk.Window, Loggable):
         self._setActions(instance)
         self._createUi(instance)
         self.app = instance
+        self._zoom_duration_changed = False
 
         self.app.projectManager.connect("new-project-loading",
                 self._projectManagerNewProjectLoadingCb)
@@ -689,6 +690,8 @@ class PitiviMainWindow(gtk.Window, Loggable):
 
         if project.timeline.duration != 0:
             self._setBestZoomRatio()
+        else:
+            self._zoom_duration_changed = True
 
     def _setBestZoomRatio(self):
         ruler_width = self.timeline.ruler.get_allocation()[2]
@@ -946,6 +949,9 @@ class PitiviMainWindow(gtk.Window, Loggable):
     def _timelineDurationChangedCb(self, timeline, duration):
         if duration > 0:
             sensitive = True
+            if self._zoom_duration_changed:
+                self._setBestZoomRatio()
+                self._zoom_duration_changed = False
         else:
             sensitive = False
         self.render_button.set_sensitive(sensitive)