@Override
      public Component getTableCellRendererComponent(JTable table,
                                                     Object value,
                                                     boolean isSelected,
                                                     boolean hasFocus,
                                                     int row,
                                                     int column) {
        super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        setText(value == null ? "" : ((NamedScope)value).getPresentableName());
        return this;
      }
@Override
      public Component getTableCellRendererComponent(JTable table,
                                                     Object value,
                                                     boolean isSelected,
                                                     boolean hasFocus,
                                                     int row,
                                                     int column)