public void init() { DragSource dragSource = DragSource.getDefaultDragSource(); // 将srcLabel转换成拖放源,它能接受复制、移动两种操作 dragSource.createDefaultDragGestureRecognizer( srcLabel, DnDConstants.ACTION_COPY_OR_MOVE, new DragGestureListener() { public void dragGestureRecognized(DragGestureEvent event) { // 将JLabel里的文本信息包装成Transferable对象 String txt = srcLabel.getText(); Transferable transferable = new StringSelection(txt); // 继续拖放操作,拖放过程中使用手状光标 event.startDrag(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR), transferable); } }); jf.add(new JScrollPane(srcLabel)); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.pack(); jf.setVisible(true); }
public TestXEmbedServer(boolean manual) { // Enable testing extensions in XEmbed server System.setProperty("sun.awt.xembed.testing", "true"); f = new Frame("Main frame"); f.addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { synchronized (TestXEmbedServer.this) { TestXEmbedServer.this.notifyAll(); } dummy.dispose(); f.dispose(); } }); f.setLayout(new BorderLayout()); Container bcont = new Container(); toFocus = new Button("Click to focus server"); final TextField tf = new TextField(20); tf.setName("0"); DragSource ds = new DragSource(); final DragSourceListener dsl = new DragSourceAdapter() { public void dragDropEnd(DragSourceDropEvent dsde) {} }; final DragGestureListener dgl = new DragGestureListener() { public void dragGestureRecognized(DragGestureEvent dge) { dge.startDrag(null, new StringSelection(tf.getText()), dsl); } }; ds.createDefaultDragGestureRecognizer(tf, DnDConstants.ACTION_COPY, dgl); final DropTargetListener dtl = new DropTargetAdapter() { public void drop(DropTargetDropEvent dtde) { dtde.acceptDrop(DnDConstants.ACTION_COPY); try { tf.setText( tf.getText() + (String) dtde.getTransferable().getTransferData(DataFlavor.stringFlavor)); } catch (Exception e) { } } }; final DropTarget dt = new DropTarget(tf, dtl); Button b_add = new Button("Add client"); b_add.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { addClient(); } }); Button b_remove = new Button("Remove client"); b_remove.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { if (clientCont.getComponentCount() != 0) { clientCont.remove(clientCont.getComponentCount() - 1); } } }); b_close = new JButton("Close modal dialog"); b_close.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { modal_d.dispose(); } }); b_modal = new Button("Show modal dialog"); b_modal.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { modal_d = new JDialog(f, "Modal dialog", true); modal_d.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); modal_d.setBounds(0, 100, 200, 50); modal_d.getContentPane().add(b_close); modal_d.validate(); modal_d.show(); } }); bcont.add(tf); bcont.add(toFocus); bcont.add(b_add); bcont.add(b_remove); bcont.add(b_modal); if (manual) { Button pass = new Button("Pass"); pass.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { passed = true; synchronized (TestXEmbedServer.this) { TestXEmbedServer.this.notifyAll(); } } }); bcont.add(pass); Button fail = new Button("Fail"); fail.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { passed = false; synchronized (TestXEmbedServer.this) { TestXEmbedServer.this.notifyAll(); } } }); bcont.add(fail); } b_modal.setName("2"); bcont.setLayout(new FlowLayout()); f.add(bcont, BorderLayout.NORTH); clientCont = Box.createVerticalBox(); f.add(clientCont, BorderLayout.CENTER); dummy = new JFrame("Dummy"); dummy.getContentPane().add(new JButton("Button")); dummy.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); dummy.setBounds(0, VERTICAL_POSITION, 100, 100); dummy.setVisible(true); f.setBounds(300, VERTICAL_POSITION, 800, 300); f.setVisible(true); }