@Override
      public void focusGained(FocusEvent event) {
        if (mySelectionIndex >= 0 && mySelectionLength == 1 && !myMixSelection) {
          ListPluginComponent component = findParent(event);
          int index = getIndex(component);
          if (mySelectionIndex != index) {
            clearSelectionWithout(index);
            singleSelection(component, index);
          }
        }
      }
@Override
      public void focusGained(FocusEvent event)