cleanup

pyui/preview.py

@@ -17,9 +17,15 @@
 from . import preview_generated
 
 class PreviewPanel(preview_generated.PreviewPanel):
+    __slots__ = 'canvas', 'context'
+
+    def __init__(self, parent, id, pos, size, style):
+        preview_generated.PreviewPanel.__init__(self, parent, id = id, pos = pos, size = size, style = style)
+        self.canvas = self._video_canvas
+        self.context = self._video_canvas.context
 
     def initdialog_event_handler(self, event):
-        self.video_panel.initialize()
+        self.canvas.SetCurrent(self.context)
 
     def size_event_handler(self, event):
         pass