@Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
      myState = (IndexUpdatingState)value;
      return super.getTableCellRendererComponent(table, "", isSelected, hasFocus, row, column);
    }
@Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)