/**
  * Sets the focus to this EV. TODO: use this view's id directly to set the focus (current code
  * assumes only 2 EVs)
  */
 private void requestViewFocus() {
   if (ev.equals(app.getEuclidianView1()))
     ((LayoutD) ((GuiManagerD) app.getGuiManager()).getLayout())
         .getDockManager()
         .setFocusedPanel(App.VIEW_EUCLIDIAN);
   else
     ((LayoutD) ((GuiManagerD) app.getGuiManager()).getLayout())
         .getDockManager()
         .setFocusedPanel(App.VIEW_EUCLIDIAN2);
 }