Example usage for javax.swing TransferHandler TransferHandler

Introduction

In this page you can find the example usage for javax.swing TransferHandler TransferHandler.

Prototype

public TransferHandler(String property) 

Source Link

Document

Constructs a transfer handler that can transfer a Java Bean property from one component to another via the clipboard or a drag and drop operation.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JLabel label = new JLabel("Label Text");

    final String propertyName = "text";
    label.setTransferHandler(new TransferHandler(propertyName));

    label.addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent evt) {
            JComponent comp = (JComponent) evt.getSource();
            TransferHandler th = comp.getTransferHandler();

            th.exportAsDrag(comp, evt, TransferHandler.COPY);
        }/*from w w  w.  ja  v  a 2  s  .  c  o m*/
    });
}

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From source file:SimpleDnD.java

public static void main(String[] args) {
    JTextField field = new JTextField(10);
    JButton button = new JButton("Button");
    JFrame f = new JFrame();
    f.setTitle("Simple Drag & Drop");

    f.setLayout(new FlowLayout());
    f.add(button);// w  w w  .ja v  a2 s  . c  om
    f.add(field);

    field.setDragEnabled(true);
    button.setTransferHandler(new TransferHandler("text"));

    f.setSize(330, 150);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setLocationRelativeTo(null);
    f.setVisible(true);
}

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From source file:DragLabel.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Drag Label");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JLabel label = new JLabel("Hello, World");
    label.setTransferHandler(new TransferHandler("foreground"));
    MouseListener listener = new MouseAdapter() {
        public void mousePressed(MouseEvent me) {
            JComponent comp = (JComponent) me.getSource();
            TransferHandler handler = comp.getTransferHandler();
            handler.exportAsDrag(comp, me, TransferHandler.COPY);
        }/* w  w  w .j a  va  2 s . com*/
    };
    label.addMouseListener(listener);
    frame.add(label, BorderLayout.SOUTH);

    JTextField text = new JTextField();
    frame.add(text, BorderLayout.NORTH);

    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:DragMouseAdapter.java

public static void main(String[] args) {
    JFrame f = new JFrame("Icon Drag & Drop");
    ImageIcon icon1 = new ImageIcon("a.png");
    ImageIcon icon2 = new ImageIcon("b.png");
    ImageIcon icon3 = new ImageIcon("c.png");

    JButton button = new JButton(icon2);

    JLabel label1 = new JLabel(icon1, JLabel.CENTER);
    JLabel label2 = new JLabel(icon3, JLabel.CENTER);

    MouseListener listener = new DragMouseAdapter();
    label1.addMouseListener(listener);/*from  w ww.  j  a va 2s  .  c  o  m*/
    label2.addMouseListener(listener);

    label1.setTransferHandler(new TransferHandler("icon"));
    button.setTransferHandler(new TransferHandler("icon"));
    label2.setTransferHandler(new TransferHandler("icon"));

    f.setLayout(new FlowLayout());
    f.add(label1);
    f.add(button);
    f.add(label2);
    f.pack();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    f.setVisible(true);
}

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From source file:ColorDrag.java

public static void main(String args[]) {
    // Create two JLabel objects
    final JLabel label1 = new JLabel("Drag here");
    JLabel label2 = new JLabel("Drop here");

    // Register TransferHandler objects on them: label1 transfers its
    // foreground color and label2 transfers its background color.
    label1.setTransferHandler(new TransferHandler("foreground"));
    label2.setTransferHandler(new TransferHandler("background"));

    // Give label1 a foreground color other than the default
    // Make label2 opaque so it displays its background color
    label1.setForeground(new Color(100, 100, 200));
    label2.setOpaque(true);/*from  w  w w  . j a v a  2  s .  c  om*/

    // Now look for drag gestures over label1. When one occurs,
    // tell the TransferHandler to begin a drag.
    // Exercise: modify this gesture recognition so that the drag doesn't
    // begin until the mouse has moved 4 pixels. This helps to keep
    // drags distinct from sloppy clicks. To do this, you'll need both
    // a MouseListener and a MouseMotionListener.
    label1.addMouseMotionListener(new MouseMotionAdapter() {
        public void mouseDragged(MouseEvent e) {
            TransferHandler handler = label1.getTransferHandler();
            handler.exportAsDrag(label1, e, TransferHandler.COPY);
        }
    });

    // Create a window, add the labels, and make it all visible.
    JFrame f = new JFrame("ColorDrag");
    f.getContentPane().setLayout(new FlowLayout());
    f.getContentPane().add(label1);
    f.getContentPane().add(label2);
    f.pack();
    f.setVisible(true);
}

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From source file:DragImage.java

public static void main(String args[]) {

    JFrame frame = new JFrame("Clip Image");
    Container contentPane = frame.getContentPane();

    final Clipboard clipboard = frame.getToolkit().getSystemClipboard();

    Icon icon = new ImageIcon("jaeger.jpg");
    final JLabel label = new JLabel(icon);
    label.setTransferHandler(new ImageSelection());

    MouseListener mouseListener = new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            JComponent comp = (JComponent) e.getSource();
            TransferHandler handler = comp.getTransferHandler();
            handler.exportAsDrag(comp, e, TransferHandler.COPY);
        }//from ww  w.j  a v  a  2  s .c o m
    };
    label.addMouseListener(mouseListener);

    JScrollPane pane = new JScrollPane(label);
    contentPane.add(pane, BorderLayout.CENTER);

    JButton copy = new JButton("Copy");
    copy.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            TransferHandler handler = label.getTransferHandler();
            handler.exportToClipboard(label, clipboard, TransferHandler.COPY);
        }
    });

    JButton clear = new JButton("Clear");
    clear.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            label.setIcon(null);
        }
    });
    clear.setTransferHandler(new TransferHandler("text"));
    mouseListener = new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            JComponent comp = (JComponent) e.getSource();
            TransferHandler handler = comp.getTransferHandler();
            handler.exportAsDrag(comp, e, TransferHandler.COPY);
        }
    };
    clear.addMouseListener(mouseListener);

    JButton paste = new JButton("Paste");
    paste.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Transferable clipData = clipboard.getContents(clipboard);
            if (clipData != null) {
                if (clipData.isDataFlavorSupported(DataFlavor.imageFlavor)) {
                    TransferHandler handler = label.getTransferHandler();
                    handler.importData(label, clipData);
                }
            }
        }
    });

    JPanel p = new JPanel();
    p.add(copy);
    p.add(clear);
    p.add(paste);
    contentPane.add(p, BorderLayout.SOUTH);

    JTextField tf = new JTextField();
    tf.setDragEnabled(true);
    contentPane.add(tf, BorderLayout.NORTH);
    frame.setSize(300, 300);
    frame.show();
}

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From source file:DigitalClock.java

public DigitalClock() {
    // Set default values for our properties
    setFormat(DateFormat.getTimeInstance(DateFormat.MEDIUM, getLocale()));
    setUpdateFrequency(1000); // Update once a second

    // Specify a Swing TransferHandler object to do the dirty work of
    // copy-and-paste and drag-and-drop for us. This one will transfer
    // the value of the "time" property. Since this property is read-only
    // it will allow drags but not drops.
    setTransferHandler(new TransferHandler("time"));

    // Since JLabel does not normally support drag-and-drop, we need an
    // event handler to detect a drag and start the transfer.
    addMouseMotionListener(new MouseMotionAdapter() {
        public void mouseDragged(MouseEvent e) {
            getTransferHandler().exportAsDrag(DigitalClock.this, e, TransferHandler.COPY);
        }/*  w w w .j  a v  a 2  s.  co  m*/
    });

    // Before we can have a keyboard binding for a Copy command,
    // the component needs to be able to accept keyboard focus.
    setFocusable(true);
    // Request focus when we're clicked on
    addMouseListener(new MouseAdapter() {
        public void mouseClicked(MouseEvent e) {
            requestFocus();
        }
    });
    // Use a LineBorder to indicate when we've got the keyboard focus
    addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            setBorder(LineBorder.createBlackLineBorder());
        }

        public void focusLost(FocusEvent e) {
            setBorder(null);
        }
    });

    // Now bind the Ctrl-C keystroke to a "Copy" command.
    InputMap im = new InputMap();
    im.setParent(getInputMap(WHEN_FOCUSED));
    im.put(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK), "Copy");
    setInputMap(WHEN_FOCUSED, im);

    // And bind the "Copy" command to a pre-defined Action that performs
    // a copy using the TransferHandler we've installed.
    ActionMap am = new ActionMap();
    am.setParent(getActionMap());
    am.put("Copy", TransferHandler.getCopyAction());
    setActionMap(am);

    // Create a javax.swing.Timer object that will generate ActionEvents
    // to tell us when to update the displayed time. Every updateFrequency
    // milliseconds, this timer will cause the actionPerformed() method
    // to be invoked. (For non-GUI applications, see java.util.Timer.)
    timer = new Timer(updateFrequency, new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            setText(getTime()); // set label to current time string
        }
    });
    timer.setInitialDelay(0); // Do the first update immediately
    timer.start(); // Start timing now!
}

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From source file:LabelDnD2.java

public LabelDnD2() {
    super(new BorderLayout());

    JColorChooser chooser = new JColorChooser();
    chooser.setDragEnabled(true);//  w  w w  . ja va2 s  .  co  m

    label = new JLabel("I'm a Label and I accept color!", SwingConstants.LEADING);
    label.setTransferHandler(new TransferHandler("foreground"));

    MouseListener listener = new DragMouseAdapter();
    label.addMouseListener(listener);
    JPanel lpanel = new JPanel(new GridLayout(1, 1));
    TitledBorder t2 = BorderFactory.createTitledBorder("JLabel: drop color onto the label");
    lpanel.add(label);
    lpanel.setBorder(t2);

    add(chooser, BorderLayout.CENTER);
    add(lpanel, BorderLayout.PAGE_END);
    setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
}

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From source file:LabelDnD.java

public LabelDnD() {
    super(new GridLayout(2, 1));
    textField = new JTextField(40);
    textField.setDragEnabled(true);/*from www.  ja  v a2 s .  c o  m*/
    JPanel tfpanel = new JPanel(new GridLayout(1, 1));
    TitledBorder t1 = BorderFactory.createTitledBorder("JTextField: drag and drop is enabled");
    tfpanel.add(textField);
    tfpanel.setBorder(t1);

    label = new JLabel("I'm a Label!", SwingConstants.LEADING);
    label.setTransferHandler(new TransferHandler("text"));

    MouseListener listener = new DragMouseAdapter();
    label.addMouseListener(listener);
    JPanel lpanel = new JPanel(new GridLayout(1, 1));
    TitledBorder t2 = BorderFactory.createTitledBorder("JLabel: drag from or drop to this label");
    lpanel.add(label);
    lpanel.setBorder(t2);

    add(tfpanel);
    add(lpanel);
    setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
}

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From source file:SwingDnDTest.java

public SwingDnDFrame() {
    setTitle("SwingDnDTest");
    JTabbedPane tabbedPane = new JTabbedPane();

    JList list = SampleComponents.list();
    tabbedPane.addTab("List", list);
    JTable table = SampleComponents.table();
    tabbedPane.addTab("Table", table);
    JTree tree = SampleComponents.tree();
    tabbedPane.addTab("Tree", tree);
    JFileChooser fileChooser = new JFileChooser();
    tabbedPane.addTab("File Chooser", fileChooser);
    JColorChooser colorChooser = new JColorChooser();
    tabbedPane.addTab("Color Chooser", colorChooser);

    final JTextArea textArea = new JTextArea(4, 40);
    JScrollPane scrollPane = new JScrollPane(textArea);
    scrollPane.setBorder(new TitledBorder(new EtchedBorder(), "Drag text here"));

    JTextField textField = new JTextField("Drag color here");
    textField.setTransferHandler(new TransferHandler("background"));

    tabbedPane.addChangeListener(new ChangeListener() {
        public void stateChanged(ChangeEvent e) {
            textArea.setText("");
        }/*from   www .  j a va  2 s  .  c om*/
    });

    tree.setDragEnabled(true);
    table.setDragEnabled(true);
    list.setDragEnabled(true);
    fileChooser.setDragEnabled(true);
    colorChooser.setDragEnabled(true);
    textField.setDragEnabled(true);

    add(tabbedPane, BorderLayout.NORTH);
    add(scrollPane, BorderLayout.CENTER);
    add(textField, BorderLayout.SOUTH);
    pack();
}

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