Fix for bug #511057

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13949 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/wxPython/lib/calendar.py

@@ -455,7 +455,7 @@ class wxCalendar(wxWindow):
         self.set_day = None
 
         EVT_PAINT(self, self.OnPaint)
-
+        EVT_SIZE(self, self.OnSize)
 
 # control some of the main calendar attributes
 
@@ -611,6 +611,10 @@ class wxCalendar(wxWindow):
     def SetBusType(self):
         self.cal_type = "BUS"
 
+    def OnSize(self, evt):
+        self.Refresh(false)
+        evt.Skip()
+
     def OnPaint(self, event):
         DC = wxPaintDC(self)
         self.DoDrawing(DC)