[pitivi] viewer: Do not let Gtk a chance to set our size to video 'natural' size

[Thibault Saunier <tsaunier src gnome org>]

commit 791c878a81b3fba4125e6222103195acc2f966bf
Author: Thibault Saunier <tsaunier gnome org>
Date:   Mon Sep 21 12:59:04 2015 +0200

    viewer: Do not let Gtk a chance to set our size to video 'natural' size
    
    Otherwise in the file chooser previewer we will not respect the zoom
    ratio asked by the user.
    
    Fixes T3336

 pitivi/viewer.py |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/viewer.py b/pitivi/viewer.py
index 6d04286..1448ebf 100644
--- a/pitivi/viewer.py
+++ b/pitivi/viewer.py
@@ -634,6 +634,16 @@ class ViewerWidget(Gtk.AspectFrame, Loggable):
         # so we need to flush the pipeline
         self.seeker.flush()
 
+    def do_get_preferred_width(self):
+        # Do not let a chance for Gtk to choose video natural size
+        # as we want to have full control
+        return -1, -1
+
+    def do_get_preferred_height(self):
+        # Do not let a chance for Gtk to choose video natural size
+        # as we want to have full control
+        return -1, -1
+
 
 class PlayPauseButton(Gtk.Button, Loggable):
     """