private void onMouseExited() {
    if (myRowUnderMouse < 0) {
      return;
    }

    ArrangementListRowDecorator decorator = myComponents.get(myRowUnderMouse);
    if (decorator != null) {
      decorator.onMouseExited();
      repaintRows(myRowUnderMouse, myRowUnderMouse, false);
    }
    myRowUnderMouse = -1;
  }
private void onMouseExited()