private int getFoldRegionWidthInColumns() {
    int maxVisualColumn = 0;
    for (LineLayout.VisualFragment fragment : myView.getFoldRegionLayout(myFoldRegion).getFragmentsInVisualOrder(0)) {
      maxVisualColumn = fragment.getEndVisualColumn();
    }
    return maxVisualColumn;
  }
private int getFoldRegionWidthInColumns()