-#!/usr/bin/env python
 
 from wxPython.wx import *
 from wxPython.grid import *
         PaintBackground and do something meaningful there.
         """
         self.log.write("MyCellEditor: SetSize %s\n" % rect)
-        self._tc.SetDimensions(rect.x, rect.y, rect.width+2, rect.height+2)
+        self._tc.SetDimensions(rect.x, rect.y, rect.width+2, rect.height+2,
+                               wxSIZE_ALLOW_MINUS_ONE)
 
 
     def Show(self, show, attr):
         ## Oops, there's a bug here, we'll have to do it ourself..
         ##return self.base_IsAcceptedKey(evt)
 
-        return not evt.HasModifiers() and evt.GetKeyCode() != WXK_SHIFT
+        return (not (evt.ControlDown() or evt.AltDown()) and
+                evt.GetKeyCode() != WXK_SHIFT)
 
 
     def StartingKey(self, evt):
         self.SetColSize(1, 150)
         self.SetColSize(2, 150)
 
+
 #---------------------------------------------------------------------------
 
 class TestFrame(wxFrame):