@RequiresEdt
  public void destroyEditorListeners() {
    getEditor(ThreeSide.LEFT).getScrollingModel().removeVisibleAreaListener(myVisibleAreaListener);
    getEditor(ThreeSide.BASE).getScrollingModel().removeVisibleAreaListener(myVisibleAreaListener);
    getEditor(ThreeSide.RIGHT).getScrollingModel().removeVisibleAreaListener(myVisibleAreaListener);

    mySyncScrollSupport = null;
  }
@RequiresEdt
  public void destroyEditorListeners()