private class ToggleAction extends AbstractAction {
public void actionPerformed(ActionEvent e) {
int row = PropertySheetTable.this.getSelectedRow();
Item item = PropertySheetTable.this.getSheetModel()
.getPropertySheetElement(row);
item.toggle();
PropertySheetTable.this.addRowSelectionInterval(row, row);
}
public boolean isEnabled() {
int row = PropertySheetTable.this.getSelectedRow();
if (row != -1) {