}
@Override
public void itemStateChanged(ItemEvent e) {
if (e.getStateChange() == ItemEvent.SELECTED) {
TransformValues k = (TransformValues) e.getItem();
double[] v = TransformValues.get(_editor.getPropertyValue(), k);
// keep column width
int w0 = _table.getColumnModel().getColumn(0).getWidth();
int w1 = _table.getColumnModel().getColumn(1).getWidth();
_table.setModel(new Model(k, v));