在RCP中实现系统托盘功能

在RCP中实现系统托盘功能

在RCP中加入系统托盘功能，类似msn和QQ。

功能就不说了。

在RCP的WorkbenchWindowAdvisor的postWindowOpen()中创建系统托盘，另外要override preWindowShellClose()方法(按窗口右上角X关闭)，否则按程序右上角的X，整个程序就会被关闭，重写后实现程序最小化的功能。

主要是重载ApplicationWorkbenchWindowAdvisor.java中的方法

/**
 * ApplicationWorkbenchWindowAdvisor.java
 */
package  com.mi.pwdgate;

import  org.eclipse.swt.graphics.Point;
import  org.eclipse.ui.IWorkbenchPreferenceConstants;
import  org.eclipse.ui.PlatformUI;
import  org.eclipse.ui.application.ActionBarAdvisor;
import  org.eclipse.ui.application.IActionBarConfigurer;
import  org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import  org.eclipse.ui.application.WorkbenchWindowAdvisor;

import  com.mi.pwdgate.util.SystemTrayMaster;

public   class  ApplicationWorkbenchWindowAdvisor  extends  WorkbenchWindowAdvisor {

  private  SystemTrayMaster trayMaster;
  /*
   * (non-Javadoc)
   *
   * @see org.eclipse.ui.application.WorkbenchWindowAdvisor#postWindowOpen()
   */
  public   void  postWindowOpen() {
    createSystemTray();
  }

  private   void  createSystemTray() {
    trayMaster = new  SystemTrayMaster();
    trayMaster.createSystemTray();
  }

        /*
     * (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchWindowAdvisor#preWindowShellClose()
     * <span style="color: #ff0000;">按窗口右上角X关闭</span>


     */
    public   boolean  preWindowShellClose() {
        System.out.println("shell going to closed!" );
        trayMaster.minimizeWindow();
        return   false ;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchWindowAdvisor#postWindowClose()
     * <span style="color: #ff0000;">所有关闭窗口的事件都从这里走，收尾工作的代码在这里写</span>


     */
    public   void  postWindowClose() {
        System.out.println("closed!" );
    }

}

/**
 * SystemTrayMaster.java
 */
package  com.mi.pwdgate.util;

import  org.eclipse.swt.SWT;
import  org.eclipse.swt.events.SelectionAdapter;
import  org.eclipse.swt.events.SelectionEvent;
import  org.eclipse.swt.events.SelectionListener;
import  org.eclipse.swt.graphics.Image;
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.MenuItem;
import  org.eclipse.swt.widgets.Shell;
import  org.eclipse.swt.widgets.Tray;
import  org.eclipse.swt.widgets.TrayItem;
import  org.eclipse.ui.PlatformUI;

/**
 * @author moneyice 2006-5-9
 */
public   class  SystemTrayMaster  implements  SelectionListener, Listener {
  private   final   class  RestoreWindowListener  extends  SelectionAdapter {
    public   void  widgetSelected(SelectionEvent e) {
      restoreWindow();
    }
  }

  private  Menu menu;

  private  MenuItem[] menuItems =  new  MenuItem[ 0 ];

  private  RestoreWindowListener restoreWindowListener;

  public  SystemTrayMaster() {
    this .restoreWindowListener =  new  RestoreWindowListener();
  }

  // Closes the Application
  protected   void  closeApplication() {
    PlatformUI.getWorkbench().close();
  }

  // click the tray
  public   void  widgetSelected(SelectionEvent e) {
  }

  // double click the tray
  public   void  widgetDefaultSelected(SelectionEvent e) {
    restoreWindow();
  }

  // Gets system shell
  private  Shell getShell() {
    return  PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
  }

  // Minimizes the Window
  public   void  minimizeWindow() {
    getShell().setMinimized(true );
    getShell().setVisible(false );
  }

  // Restores the window
  protected   void  restoreWindow() {
    Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow()
        .getShell();
    shell.open();
    shell.setMinimized(false );
    shell.forceActive();
    shell.forceFocus();
  }

  public   void  showMenu() {
    clearItems();
    MenuItem openItem;
    MenuItem closeItem;
    openItem = new  MenuItem( this .menu, SWT.PUSH);
    closeItem = new  MenuItem( this .menu, SWT.NONE);
    closeItem.setText("Close" );
    closeItem.addSelectionListener(new  SelectionAdapter() {
      public   void  widgetSelected(SelectionEvent e) {
        closeApplication();
      }
    });
    this .menuItems =  new  MenuItem[] { openItem, closeItem };

    openItem.setText("Open Password Gate" );
    openItem.addSelectionListener(this .restoreWindowListener);
    this .menu.setVisible( true );
  }

  private   void  clearItems() {
    for  ( int  i =  0 ; i <  this .menuItems.length; i++) {
      MenuItem item = this .menuItems[i];
      item.removeSelectionListener(this .restoreWindowListener);
      this .menuItems[i].dispose();
    }
  }

  public   void  handleEvent(Event event) {
    showMenu();
  }

  public   void  createSystemTray() {
    // Gets system tray
    Tray tray = Display.getDefault().getSystemTray();
    // Creates tray item
    TrayItem item = new  TrayItem(tray, SWT.NONE);
    item.setText("Password Gate" );
    item.setToolTipText("Password Gate" );
    // Sets image for tray
    Image image = ImageShop.get("default" );
    item.setImage(image);

    item.addSelectionListener(this );
    item.addListener(SWT.MenuDetect, this );

    menu = new  Menu(getShell(), SWT.POP_UP);
  }
}