package testrcp.app;

import org.eclipse.jface.action.MenuManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tray;
import org.eclipse.swt.widgets.TrayItem;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.application.ActionBarAdvisor;
import org.eclipse.ui.application.IActionBarConfigurer;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;

public class ApplicationWorkbenchWindowAdvisor extends WorkbenchWindowAdvisor {

 private TrayItem trayItem;//系統托盤對象
 private Image trayImage;//系統托盤圖標對象
 /** 程序的菜單條 */
 private ApplicationActionBarAdvisor actionBarAdvisor;
 
    public ApplicationWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
        super(configurer);
    }
    /** 創建菜單條對象 */
    public ActionBarAdvisor createActionBarAdvisor(IActionBarConfigurer configurer) {
        actionBarAdvisor = new ApplicationActionBarAdvisor(configurer);
     return actionBarAdvisor;
    }
   
    /** 打開窗口前調用該方法，對窗口初始化設置 */
    public void preWindowOpen() {
        IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
        configurer.setInitialSize(new Point(600, 400));
        configurer.setShowCoolBar(true);//工具欄
        configurer.setShowStatusLine(false);//狀態欄
       
        configurer.setShowPerspectiveBar(true);//透視圖
        configurer.setShowProgressIndicator(true);//進度條
       
        final IWorkbenchWindow window = super.getWindowConfigurer().getWindow();
        /** 創建系統托盤 */
        trayItem = initTrayItem(window);
        /** 如果支持系統托盤，則創建托盤的菜單 */
        if(trayItem != null) {
         createPopupMenu(window);
        }
    }
   
    /**
  * 創建系統托盤菜單
  *
  * @param window
  *            工作臺窗口對象
  */
    private void createPopupMenu(final IWorkbenchWindow window) {
  trayItem.addListener(SWT.MenuDetect, new Listener() {

   @Override
   public void handleEvent(Event event) {
    MenuManager trayMenu = new MenuManager();
    Menu menu = trayMenu.createContextMenu(window.getShell());
    /**
     * 調用fillTrayItem方法創建系統托盤對象，可以直接利用菜單欄中的操作 而不需要，重新創建操作
     */
    actionBarAdvisor.fillTrayItem(trayMenu);
    menu.setVisible(true);
   }
   
  });
  
 }

 /**
  * 初始化系統托盤對象
  *
  * @param window
  *            工作臺窗口對象
  * @return 該程序所對應的系統托盤對象
  */
 private TrayItem initTrayItem(IWorkbenchWindow window) {
  final Tray tray = Display.getCurrent().getSystemTray();
  if(tray == null)
   return null;
  TrayItem trayItem = new TrayItem(tray, SWT.NONE);
  trayImage = Activator.getImageDescriptor("icons/logo.gif").createImage();
  trayItem.setImage(trayImage);
  trayItem.setToolTipText("System Tray");
  
  return trayItem;
 }

 @Override
 public void postWindowOpen() {
  //窗口居中顯示
  Shell shell = getWindowConfigurer().getWindow().getShell();
  Rectangle screenSize = Display.getDefault().getClientArea();
  Rectangle frameSize = shell.getBounds();
  shell.setLocation((screenSize.width - frameSize.width)/2, (screenSize.height - frameSize.height)/2);
 }
   
 /** 釋放窗口，釋放系統托盤 */
 public void dispose() {
  if (trayImage != null) {
   trayImage.dispose();
   trayItem.dispose();
  }
 }

}