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OLE--SWT高级控件

OLE和ActiveX控件的支持
    OLE(Object Link Embeded)是指在程序之间链接和嵌入对象数据。通过OLE技术可以在一个应用程序中执行其他的应用程序。
    而ActiveX控件是OLE的延伸,一般用于网络。
    SWT中涉及OLE和ActiveX的类都在org.eclipse.swt.ole.win32包中,使用最常见的是OleFrame类、OleClientSite类和OleControlSite类。

1. OLE控件的面板类(OleFrame)
    该类继承自Composite类,相当于一个放置OLE控件的面板。

该类的主要功能有以下几点:
◆ 对OLE控件进行布局的设置,相当于一个普通的面板类。
◆ 可以为控件添加菜单。
    ◇ 设置和获取文件菜单:setFileMenus(MenuItem[] fileMenus)和getFileMenus()。
    ◇ 设置和获取容器菜单:setContainerMenus(MenuItem[] containerMenus)和getContainerMenus()。
    ◇ 设置和获取窗口菜单:setWindowMenus(MenuItem[] windowMenus)和getWindowMenus()。
◆ 既然可以获取OLE控件的菜单,就可以对菜单项进行控制,例如设置可见和设置加速键等。
创建一个OleFrame对象的方法:
   frame = new OleFrame(sShell, SWT.NONE);
// 为控件设置菜单项
   frame.setFileMenus(fileItem);

2. OLE控件类(OleClientSite和OleControlSite)
    OleClientSite对象和OleControlSite对象都是OLE控件,其中OleClientSite为OLE控件,OleControlSite为ActiveX控件,因为OleControlSite类继承自OleClientSite类。

若想创建OLE对象,有两种常用的构造方法:
◆ OleClientSite(Composite parent, int style, String progId):progId为标示应用系统的字符,例如,Word的progId为“Word.Document”,Excel的为“Excel.Sheet”,IE的为“Shell.Explorer”。若要查看其他应用程序的progId,可以查看系统注册表。
OleClientSite clientSite = new OleClientSite(frame, SWT.NONE, "Word.Document");
◆ OleClientSite(Composite parent, int style, File file):file为保存的某一个文件。用这种方法创建的OLE控件,系统会根据文件自动查找对应打开的应用程序。
File file = new File("F://Temp.doc");
OleClientSite clientSite = new OleClientSite(frame, SWT.NONE, file);

创建了一个OLE控件,接下来需要打开控件,才可以显示控件。使用doVerb(int verb)方法。其中verb有以下可以选择的参数:
◇ OLE.OLEIVERB_PRIMARY:打开编辑状态的OLE控件。
◇ OLE.OLEIVERB_SHOW:显示OLE控件。
◇ OLE.OLEIVERB_OPEN:在另外一个窗口中打开OLE控件。
◇ OLE.OLEIVERB_HIDE:隐藏OLE控件。
◇ OLE.OLEIVERB_INPLACEACTIVATE:不带有工具栏和菜单栏的方式。
◇ OLE.OLEIVERB_UIACTIVATE:激活OLE的菜单栏和工具栏。
◇ OLE.OLEIVERB_DISCARDUNDOSTATE:关闭OLE控件。
例如,以下代码可以打开编辑状态的OLE控件:
clientSite.doVerb(OLE.OLEIVERB_PRIMARY);

当OLE对打开的文件修改后,通过isDirty()方法可以判断是否已经修改过。如果修改后,可以使用save(File file, boolean includeOleInfo)方法进行保存。例如:
if(clientSite.isDirty()) {
clientSite.save(file, true);
}


创建ActiveX控件对象要使用OleControlSite类,该类只有一个构造方法:
OleControlSite(Composite parent, int style, String progId):只能根据progId来创建。例如,创建一个Word的ActiveX控件对象的代码如下:
OleControlSite controlSite = new OleControlSite(frame, SWT.NONE, "Word.Document");

3. OLE程序示例:
     该程序的功能是:可以选择打开Word文档,然后进行编辑后保存该文档。

 

import java.io.File;
public class OleSample {
private Shell sShell;
private MenuItem[] fileItem;//OLE的菜单项
private OleClientSite clientSite;//OLE控件对象
private OleFrame frame;//OLE的面板的对象
private File openFile;//打开的文件
public static void main(String[] args) {
   Display display = Display.getDefault();
   OleSample thisClass = new OleSample();
   thisClass.createSShell();
   thisClass.sShell.open();
   while (!thisClass.sShell.isDisposed()) {
    if (!display.readAndDispatch())
     display.sleep();
   }
   thisClass.clientSite.dispose();
   display.dispose();
}
private void createSShell() {
   sShell = new Shell();
   sShell.setText("OLE Sample");
   sShell.setLayout(new FillLayout());
   createMenu();
   sShell.setSize(new Point(300, 200));
}
//创建OLE控件对象
private void createOle() {
   frame = new OleFrame(sShell, SWT.NONE);
   frame.setFileMenus(fileItem); // 设置文件菜单
   if (openFile != null)
    clientSite = new OleClientSite(frame, SWT.NONE, openFile);
   clientSite.doVerb(OLE.OLEIVERB_PRIMARY);
}
private void createMenu() {
   Menu main = new Menu(sShell, SWT.BAR);
   MenuItem file = new MenuItem(main, SWT.CASCADE);
   file.setText("文件(&F)");
   Menu fileMenu = new Menu(file);
   fileItem = new MenuItem[2];
   fileItem[0] = new MenuItem(fileMenu, SWT.PUSH);
   fileItem[0].setText("打开");
   fileItem[1] = new MenuItem(fileMenu, SWT.PUSH);
   fileItem[1].setText("保存");
   file.setMenu(fileMenu);
   sShell.setMenuBar(main);
   fileItem[0].addSelectionListener(new SelectionAdapter() {
    public void widgetSelected(SelectionEvent e) {
     FileDialog dialog = new FileDialog(sShell, SWT.OPEN);
     dialog.setFilterExtensions(new String[] { "*.doc", "*.*" });
     String file = dialog.open();
     if (file != null) {
      openFile = new File(file);
      //打开OLE控件
      createOle();
     }
    }
   });
   fileItem[1].addSelectionListener(new SelectionAdapter() {
    public void widgetSelected(SelectionEvent e) {
     //如果打开文件被修改过
     if (clientSite.isDirty()) {
      //创建一个临时文件
      File tempFile = new File(openFile.getAbsolutePath() + ".tmp");
      openFile.renameTo(tempFile);
      //如果保存成功,则删除临时文件,否则恢复到临时文件保存的状态
      if (clientSite.save(openFile, true))
       tempFile.delete();
      else
       tempFile.renameTo(openFile);
     }
    }
   });
}
}

效果

显示效果:

打开一个Word文档后:


“文件”菜单为在代码中定义的菜单,其他菜单为Word的菜单。

swt制作的播放器

package org.flash.player;

import java.awt.BorderLayout;
import java.io.File;   

import org.eclipse.swt.SWT;   
import org.eclipse.swt.SWTError;   
import org.eclipse.swt.layout.FillLayout;   
import org.eclipse.swt.ole.win32.OLE;   
import org.eclipse.swt.ole.win32.OleAutomation;   
import org.eclipse.swt.ole.win32.OleControlSite;   
import org.eclipse.swt.ole.win32.OleFrame;   
import org.eclipse.swt.ole.win32.Variant;   
import org.eclipse.swt.widgets.Composite;   
import org.eclipse.swt.widgets.Display;   
import org.eclipse.wb.swt.SWTResourceManager;
  
public class WMP extends Composite   
{   
    private OleAutomation player;   
  
    /**  
     * Create the composite  
     * @param parent  
     * @param style  
     */  
    public WMP(Composite parent, int style)   
    {   
        super(parent, style);   
        setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));   
        createContents();   
    }   
  
    protected void createContents()   
    {   
        setLayout(new FillLayout());   
        OleControlSite controlSite;   
  
        try  
        {   
            OleFrame frame = new OleFrame(this, SWT.NO_TRIM);   
            frame.setLayoutData(new BorderLayout(0, 0));   
            frame.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));   
            controlSite = new OleControlSite(frame, SWT.None, "WMPlayer.OCX.7");   
            controlSite.setBackgroundImage(SWTResourceManager.getImage(WMP.class,   
             "/img/1.jpg"));   
            controlSite.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));   
            controlSite.setRedraw(true);   
            controlSite.setLayoutDeferred(true);   
            controlSite.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));   
            controlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE);   
            controlSite.pack();   
        }   
        catch (SWTError e)   
        {   
            System.out.println("Unable to open activeX control");   
            return;   
        }   
        player = new OleAutomation(controlSite);   
        setFocus();   
        setUIMode("none");    
        File file = new File(".");   
        if (file.exists())   
        {   
            File fs[] = file.listFiles();   
            addPlayList(fs);   
        }   
        setMode("loop", true);   
        play();   
  
    }   
  
    public boolean loadFile(String URL)   
    {   
        int[] ids = player.getIDsOfNames(new String[] { "URL" });   
        if (ids != null)   
        {   
            Variant theFile = new Variant(URL);   
            return player.setProperty(ids[0], theFile);   
        }   
        return false;   
    }   
  
    public void setUIMode(String s)   
    {   
        int ids[] = player.getIDsOfNames(new String[] { "uiMode" });   
        if (ids != null)   
        {   
            player.setProperty(ids[0], new Variant(s));   
        }   
    }   
  
    public void setVolume(int v)   
    {   
        int value =http://www.mamicode.com/ getVolume();   
        OleAutomation o = getSetting();   
        ;   
        int id[] = o.getIDsOfNames(new String[] { "volume" });   
        if (id != null)   
        {   
            int vv = v + value;   
            if (vv > 100)   
            {   
                vv = 100;   
            }   
            o.setProperty(id[0], new Variant(vv));   
        }   
  
    }   
  
    public int getVolume()   
    {   
        int value = http://www.mamicode.com/0;   
        OleAutomation o = getSetting();   
        int id[] = o.getIDsOfNames(new String[] { "volume" });   
        if (id != null)   
        {   
            Variant vv = o.getProperty(id[0]);   
            if (vv != null)   
                value = vv.getInt();   
        }   
        return value;   
    }   
  
    /**  
     * autoRewind Mode ———indicating whether the tracks are rewound to the  
     * beginning after playing to the end. Default state is true.  
     *   
     * loop Mode ——– indicating whether the sequence of tracks repeats itself.  
     * Default state is false.  
     *   
     * showFrame Mode ——— indicating whether the nearest video key frame is  
     * displayed at the current position when not playing. Default state is  
     * false. Has no effect on audio tracks.  
     *   
     * shuffle Mode ———- indicating whether the tracks are played in random  
     * order. Default state is false.  
     *   
     * @param m  
     * @param flag  
     */  
  
    public void setMode(String m, boolean flag)   
    {   
        OleAutomation o = getSetting();   
        int ids[] = o.getIDsOfNames(new String[] { "setMode" });   
        if (ids != null)   
        {   
            o.invoke(ids[0], new Variant[] { new Variant(m), new Variant(flag) });   
        }   
  
    }   
  
    private OleAutomation getSetting()   
    {   
        OleAutomation o = null;   
        int ids[] = player.getIDsOfNames(new String[] { "settings" });   
        if (ids != null)   
        {   
            o = player.getProperty(ids[0]).getAutomation();   
        }   
        return o;   
    }   
  
    private OleAutomation getControls()   
    {   
        OleAutomation o = null;   
        int ids[] = player.getIDsOfNames(new String[] { "controls" });   
        if (ids != null)   
        {   
            o = player.getProperty(ids[0]).getAutomation();   
        }   
        return o;   
    }   
  
    public void setPostion(int s)   
    {   
        OleAutomation o = getControls();   
        int ids[] = o.getIDsOfNames(new String[] { "currentPosition" });   
        if (ids != null)   
        {   
            o.setProperty(ids[0], new Variant(s));   
        }   
    }   
  
    public void play()   
    {   
        OleAutomation o = getControls();   
        int ids[] = o.getIDsOfNames(new String[] { "play" });   
        if (ids != null)   
        {   
            o.invoke(ids[0]);   
        }   
    }   
  
    public void stop()   
    {   
        OleAutomation o = getControls();   
        int ids[] = o.getIDsOfNames(new String[] { "stop" });   
        if (ids != null)   
        {   
            o.invoke(ids[0]);   
        }   
    }   
  
    public void pause()   
    {   
        OleAutomation o = getControls();   
        int ids[] = o.getIDsOfNames(new String[] { "pause" });   
        if (ids != null)   
        {   
            o.invoke(ids[0]);   
        }   
    }   
  
    public void fullScreen(boolean b)   
    {   
        if (true && getSize().x == 0)   
        {   
            return;   
        }   
        int ids[] = player.getIDsOfNames(new String[] { "fullScreen" });   
        if (ids != null)   
        {   
            player.setProperty(ids[0], new Variant(b));   
        }   
    }   
  
    public int getPlayState()   
    {   
        int state = 0;   
        int ids[] = player.getIDsOfNames(new String[] { "playState" });   
        if (ids != null)   
        {   
            Variant sv = player.getProperty(ids[0]);   
            if (sv != null)   
                state = sv.getInt();   
        }   
        return state;   
    }   
  
    public void closeMedia()   
    {   
        int ids[] = player.getIDsOfNames(new String[] { "close" });   
        if (ids != null)   
        {   
            player.invoke(ids[0]);   
        }   
  
    }   
  
    public void addPlayList(File urls[])   
    {   
        int ids[] = player.getIDsOfNames(new String[] { "currentPlaylist" });   
        if (ids != null)   
        {   
            OleAutomation o = player.getProperty(ids[0]).getAutomation();   
            int idsaddma[] = o.getIDsOfNames(new String[] { "appendItem" });   
            int idsma[] = player.getIDsOfNames(new String[] { "newMedia" });   
            if (idsaddma != null && idsma != null)   
            {   
                for (File url : urls)   
                {   
                    Variant media = player.invoke(idsma[0], new Variant[] { new Variant(url.getAbsolutePath()) });   
                    if (media != null)   
                    {   
                        o.invoke(idsaddma[0], new Variant[] { media });   
                    }   
  
                }   
            }   
  
        }   
    }   
  
    public void play(String url)   
    {   
        int idsma[] = player.getIDsOfNames(new String[] { "newMedia" });   
        if (idsma != null)   
        {   
            Variant media = player.invoke(idsma[0], new Variant[] { new Variant(url) });   
            int cmedia[] = player.getIDsOfNames(new String[] { "currentMedia" });   
            if (cmedia != null)   
            {   
                player.setProperty(cmedia[0], media);   
                play();   
            }   
        }   
    }   
  
  
    public void playList()   
    {   
        File file = new File("");   
        if (file.exists())   
        {   
            File fs[] = file.listFiles();   
            addPlayList(fs);   
        }   
        setMode("loop", true);   
        play();   
    }   
  
}  
package org.flashSys.ui;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.flash.player.WMP;

public class Player   
{   
  
    protected Shell shell; 
    private String file;
  
    /**  
     * Launch the application  
     * @param args  
     */  
    public static void main(String[] args)   
    {   
        try  
        {   
            Player window = new Player();   
            window.open();   
        }   
        catch (Exception e)   
        {   
            e.printStackTrace();   
        }   
    }   
  
    /**  
     * Open the window  
     */  
    public void open()   
    {   
        final Display display = Display.getDefault();   
        createContents();   
        shell.open();   
        shell.layout();   
        while (!shell.isDisposed())   
        {   
            if (!display.readAndDispatch())   
                display.sleep();   
        }   
    }   
  
    /**  
     * Create contents of the window  
     */  
    protected void createContents()   
    {   
        shell = new Shell();   
        shell.setLayout(new FillLayout());   
        shell.setSize(500, 375);   
        shell.setText("模板播放");   
  
        final WMP composite = new WMP(shell, SWT.NONE);   
//        composite.play("D:/1.swf"); 
        this.setFile("D:/tween.swf");
        composite.play(file);   
  
        //   
    }

    public String getFile() {
        return file;
    }

    public void setFile(String file) {
        this.file = file;
    }  
}