Index: Thuban/UI/viewport.py
===================================================================
--- Thuban/UI/viewport.py	(revision 2868)
+++ Thuban/UI/viewport.py	(working copy)
@@ -95,6 +95,9 @@
     def MouseUp(self, event):
         if self.dragging:
             self.drag_stop(event.m_x, event.m_y)
+    
+    def MouseDoubleClick(self, event):
+        pass
 
     def Cancel(self):
         self.dragging = 0
@@ -642,6 +645,10 @@
         self.set_current_position(event)
         if self.tool is not None:
             self.tool.MouseMove(event)
+    
+    def MouseDoubleClick(self, event):
+        if self.tool is not None:
+            self.tool.MouseDoubleClick(event)
 
     def shape_selected(self, layer, shape):
         """Receiver for the SHAPES_SELECTED messages. Redraw the map."""
Index: Thuban/UI/view.py
===================================================================
--- Thuban/UI/view.py	(revision 2868)
+++ Thuban/UI/view.py	(working copy)
@@ -122,6 +122,7 @@
         # subscribe the WX events we're interested in
         self.Bind(wx.EVT_PAINT, self.OnPaint)
         self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
+        self.Bind(wx.EVT_LEFT_DCLICK, self.OnLeftDoubleClick)
         self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
         self.Bind(wx.EVT_MIDDLE_DOWN, self.OnMiddleDown)
         self.Bind(wx.EVT_MIDDLE_UP, self.OnMiddleUp)
@@ -131,7 +132,7 @@
         self.Bind(wx.EVT_IDLE, self.OnIdle)
 
     def __del__(self):
-        wx.Window.__del__(self)
+        #wx.Window.__del__(self)
         ViewPort.__del__(self)
 
     def PreviewBitmap(self):
@@ -401,6 +402,11 @@
                 self.dragging = 0
         self.MouseLeftUp(event)
 
+    def OnLeftDoubleClick(self, event):
+        """ Handle EVT_LEFT_DCLICK
+        """
+        self.MouseDoubleClick(event)
+
     def OnMotion(self, event):
         if self.dragging:
             self.tool.Hide(self.drag_dc)