| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * How to access About, Preferences and Quit menus on carbon. |
| * NOTE: This snippet uses internal SWT packages that are |
| * subject to change without notice. |
| * |
| * For a list of all SWT example snippets see |
| * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets |
| */ |
| |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.carbon.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet178 { |
| |
| private static final int kHICommandPreferences = ('p' << 24) + ('r' << 16) |
| + ('e' << 8) + 'f'; |
| |
| private static final int kHICommandAbout = ('a' << 24) + ('b' << 16) |
| + ('o' << 8) + 'u'; |
| |
| private static final int kHICommandServices = ('s' << 24) + ('e' << 16) |
| + ('r' << 8) + 'v'; |
| |
| public static void main(String[] arg) { |
| Display.setAppName("AppMenu"); // sets name in Dock |
| Display display = new Display(); |
| hookApplicationMenu(display, "About AppMenu"); |
| Shell shell = new Shell(display); |
| shell.setText("Main Window"); |
| shell.open(); |
| while (!shell.isDisposed()) |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| |
| display.dispose(); |
| } |
| |
| static void hookApplicationMenu(Display display, final String aboutName) { |
| // Callback target |
| Object target = new Object() { |
| int commandProc(int nextHandler, int theEvent, int userData) { |
| if (OS.GetEventKind(theEvent) == OS.kEventProcessCommand) { |
| HICommand command = new HICommand(); |
| OS.GetEventParameter(theEvent, OS.kEventParamDirectObject, |
| OS.typeHICommand, null, HICommand.sizeof, null, |
| command); |
| switch (command.commandID) { |
| case kHICommandPreferences: |
| return handleCommand("Preferences"); //$NON-NLS-1$ |
| case kHICommandAbout: |
| return handleCommand(aboutName); |
| default: |
| break; |
| } |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| int handleCommand(String command) { |
| Shell shell = new Shell(); |
| MessageBox preferences = new MessageBox(shell, SWT.ICON_WARNING); |
| preferences.setText(command); |
| preferences.open(); |
| shell.dispose(); |
| return OS.noErr; |
| } |
| }; |
| |
| final Callback commandCallback = new Callback(target, "commandProc", 3); //$NON-NLS-1$ |
| int commandProc = commandCallback.getAddress(); |
| if (commandProc == 0) { |
| commandCallback.dispose(); |
| return; // give up |
| } |
| |
| // Install event handler for commands |
| int[] mask = new int[] { OS.kEventClassCommand, OS.kEventProcessCommand }; |
| OS.InstallEventHandler(OS.GetApplicationEventTarget(), commandProc, |
| mask.length / 2, mask, 0, null); |
| |
| // create About ... menu command |
| int[] outMenu = new int[1]; |
| short[] outIndex = new short[1]; |
| if (OS.GetIndMenuItemWithCommandID(0, kHICommandPreferences, 1, |
| outMenu, outIndex) == OS.noErr |
| && outMenu[0] != 0) { |
| int menu = outMenu[0]; |
| |
| int l = aboutName.length(); |
| char buffer[] = new char[l]; |
| aboutName.getChars(0, l, buffer, 0); |
| int str = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, |
| buffer, l); |
| OS.InsertMenuItemTextWithCFString(menu, str, (short) 0, 0, |
| kHICommandAbout); |
| OS.CFRelease(str); |
| |
| // add separator between About & Preferences |
| OS.InsertMenuItemTextWithCFString(menu, 0, (short) 1, |
| OS.kMenuItemAttrSeparator, 0); |
| |
| // enable pref menu |
| OS.EnableMenuCommand(menu, kHICommandPreferences); |
| |
| // disable services menu |
| OS.DisableMenuCommand(menu, kHICommandServices); |
| } |
| |
| // schedule disposal of callback object |
| display.disposeExec(new Runnable() { |
| public void run() { |
| commandCallback.dispose(); |
| } |
| }); |
| } |
| } |