--- a/demo_anchorlayout.py	Sat Feb 02 12:54:27 2013 +0100
+++ b/demo_anchorlayout.py	Sun Feb 03 16:38:41 2013 +0100
@@ -51,7 +51,7 @@
         align = self.win.get_hint(align_type)
         align.select_next()
         ev.originator.label = '%s: %s' % (align_type, align.selected)
-        self.top.emit('resize')
+        self.top.need_resize()
         return True
 
     def on_label_margin_draw(self, ev):