/*
  * (non-Javadoc)
  *
  * @see org.eclipse.gef.ui.actions.SelectionAction#handleSelectionChanged()
  */
 protected void handleSelectionChanged() {
   super.handleSelectionChanged();
   EditPart editPart = getEditPart();
   if (window != null && window.isOpened() && editPart != null) {
     window.setEditPart(editPart);
   }
 }