//pns^ mac で SchemaBox にもメニューバーを出す
if (isMac) {
WindowSupport windowSupport = WindowSupport.create(title);
frame = windowSupport.getFrame();
javax.swing.JMenuBar myMenuBar = windowSupport.getMenuBar();
mediator = new MenuSupport(this);
MenuFactory appMenu = new MenuFactory();
// mainWindow の menuSupport をセットしておけばメニュー処理は mainWindow がしてくれる
appMenu.setMenuSupports(getContext().getMenuSupport(), mediator);
appMenu.build(myMenuBar);