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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; } }