--- a/tuikit/layout.py	Fri Feb 01 09:34:15 2013 +0100
+++ b/tuikit/layout.py	Sat Feb 02 12:54:27 2013 +0100
@@ -17,9 +17,11 @@
 class Layout(Container):
     def add(self, widget, **kwargs):
         Container.add(self, widget, **kwargs)
-        widget.add_handler('sizereq', self.on_child_sizereq)
+        widget.add_handler('sizereq', self._on_child_size_change)
+        widget.add_handler('show', self._on_child_size_change)
+        widget.add_handler('hide', self._on_child_size_change)
 
-    def on_child_sizereq(self, ev):
+    def _on_child_size_change(self, ev):
         self.emit('resize')
 
     def _get_children(self):