@Override
public void actionPerformed(ActionEvent e) {
Object src = e.getSource();
if (src == minimize) {
doMinimize();
} else if (src == zoom) {
doZoom();
} else if (src == close) {
doClose();
} else if (src instanceof WindowMenuItem) {
WindowMenuItem choice = (WindowMenuItem) src;
if (choice.isSelected()) {
WindowMenuItem item = findOwnerItem();
if (item != null) {
item.setSelected(true);
}
choice.actionPerformed(e);
}
}
}
