this.add(showMap);
JButton hideMap = new JButton(new ShowHideAreaAction(mapInfo, false));
this.add(hideMap);
JButton showAll = new JButton(new ShowHideAllAction(mapInfo, true));
this.add(showAll);
JButton hideAll = new JButton(new ShowHideAllAction(mapInfo, false));
this.add(hideAll);
}