public static boolean isGrouped(final CaptionSelection selection) {
    FormLayout layout = (FormLayout) selection.getContainer().getLayout();
    int[][] groups = selection.isRow() ? layout.getRowGroups() : layout.getColumnGroups();
    final int[] indices = selection.getSelection();
    for (int[] group : groups) {
      if (intersect(group, indices)) return true;
    }
    return false;
  }
public static boolean isGrouped(final CaptionSelection selection)