public void itemStateChanged(ItemEvent event) {
CheckboxMenuItem theMenuItem = (CheckboxMenuItem) (event.getSource());
String strIndex =
theMenuItem
.getActionCommand()
.substring(theMenuItem.getActionCommand().lastIndexOf('.') + 1);
int index = (new Integer(strIndex)).intValue();
if (theMenuItem.getState()) {
((Component) visibleMapLayers.elementAt(index)).setVisible(true);
} else {
((Component) visibleMapLayers.elementAt(index)).setVisible(false);
}
System.out.println("Action = " + theMenuItem.getActionCommand());
System.out.println(" = " + theMenuItem.getState());
}
private static void createAndShowGUI() {
// Check the SystemTray support
if (!SystemTray.isSupported()) {
System.out.println("SystemTray is not supported");
return;
}
final PopupMenu popup = new PopupMenu();
final TrayIcon trayIcon =
new TrayIcon(ImageHelper.loadImage("/images/splash.jpg", "tray icon"));
final SystemTray tray = SystemTray.getSystemTray();
// Create a popup menu components
MenuItem aboutItem = new MenuItem("About");
CheckboxMenuItem cb1 = new CheckboxMenuItem("Set auto size");
CheckboxMenuItem cb2 = new CheckboxMenuItem("Set tooltip");
Menu displayMenu = new Menu("Display");
MenuItem errorItem = new MenuItem("Error");
MenuItem warningItem = new MenuItem("Warning");
MenuItem infoItem = new MenuItem("Info");
MenuItem noneItem = new MenuItem("None");
MenuItem exitItem = new MenuItem("Exit");
// Add components to popup menu
popup.add(aboutItem);
popup.addSeparator();
popup.add(cb1);
popup.add(cb2);
popup.addSeparator();
popup.add(displayMenu);
displayMenu.add(errorItem);
displayMenu.add(warningItem);
displayMenu.add(infoItem);
displayMenu.add(noneItem);
popup.add(exitItem);
trayIcon.setPopupMenu(popup);
try {
tray.add(trayIcon);
} catch (AWTException e) {
System.out.println("TrayIcon could not be added.");
return;
}
trayIcon.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null, "This dialog box is run from System Tray");
}
});
aboutItem.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null, "This dialog box is run from the About menu item");
}
});
cb1.addItemListener(
new ItemListener() {
public void itemStateChanged(ItemEvent e) {
int cb1Id = e.getStateChange();
if (cb1Id == ItemEvent.SELECTED) {
trayIcon.setImageAutoSize(true);
} else {
trayIcon.setImageAutoSize(false);
}
}
});
cb2.addItemListener(
new ItemListener() {
public void itemStateChanged(ItemEvent e) {
int cb2Id = e.getStateChange();
if (cb2Id == ItemEvent.SELECTED) {
trayIcon.setToolTip("Sun TrayIcon");
} else {
trayIcon.setToolTip(null);
}
}
});
ActionListener listener =
new ActionListener() {
public void actionPerformed(ActionEvent e) {
MenuItem item = (MenuItem) e.getSource();
// TrayIcon.MessageType type = null;
System.out.println(item.getLabel());
if ("Error".equals(item.getLabel())) {
// type = TrayIcon.MessageType.ERROR;
trayIcon.displayMessage(
"Sun TrayIcon Demo", "This is an error message", TrayIcon.MessageType.ERROR);
} else if ("Warning".equals(item.getLabel())) {
// type = TrayIcon.MessageType.WARNING;
trayIcon.displayMessage(
"Sun TrayIcon Demo", "This is a warning message", TrayIcon.MessageType.WARNING);
} else if ("Info".equals(item.getLabel())) {
// type = TrayIcon.MessageType.INFO;
trayIcon.displayMessage(
"Sun TrayIcon Demo", "This is an info message", TrayIcon.MessageType.INFO);
} else if ("None".equals(item.getLabel())) {
// type = TrayIcon.MessageType.NONE;
trayIcon.displayMessage(
"Sun TrayIcon Demo", "This is an ordinary message", TrayIcon.MessageType.NONE);
}
}
};
errorItem.addActionListener(listener);
warningItem.addActionListener(listener);
infoItem.addActionListener(listener);
noneItem.addActionListener(listener);
exitItem.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
tray.remove(trayIcon);
System.exit(0);
}
});
}