Example usage for javax.swing JLabel setTransferHandler

Introduction

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

Prototype

@BeanProperty(hidden = true, description = "Mechanism for transfer of data to and from the component")
public void setTransferHandler(TransferHandler newHandler) 

Source Link

Document

Sets the TransferHandler , which provides support for transfer of data into and out of this component via cut/copy/paste and drag and drop.

Usage

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  av a2s.  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: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);
        }//w  w w. j av a  2  s .c  om
    });
}

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From source file:MainClass.java

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

    Icon icon = new ImageIcon("image.jpg");
    JLabel label = new JLabel(icon);
    label.setTransferHandler(new ImageSelection());
    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 av  a 2 s  .  c o m*/
    };
    label.addMouseListener(listener);
    frame.add(new JScrollPane(label), BorderLayout.CENTER);

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

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From source file:ImageSelection.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Drag Image");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Icon icon = new ImageIcon("yourFile.gif");
    JLabel label = new JLabel(icon);
    label.setTransferHandler(new ImageSelection());
    MouseListener listener = new MouseAdapter() {
        public void mousePressed(MouseEvent me) {
            JComponent comp = (JComponent) me.getSource();
            TransferHandler handler = comp.getTransferHandler();
            handler.exportAsDrag(comp, me, TransferHandler.COPY);
        }//from  ww  w  . j av a 2s.com
    };
    label.addMouseListener(listener);
    frame.add(new JScrollPane(label), BorderLayout.CENTER);

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

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From source file:Main.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());

    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);
        }//from  ww  w.  j av a2 s.c o  m
    });

    JButton clear = new JButton("Clear");
    clear.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            label.setIcon(null);
        }
    });

    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);
    frame.setSize(300, 300);
    frame.show();
}

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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 w w w. j  a va 2s .  co 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: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  w  w . j  a va 2 s .co 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  av  a2  s. c  o m

    // 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:DragColorDemo.java

public DragColorDemo() {
    super(new BorderLayout());
    setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));

    JColorChooser chooser = new JColorChooser();
    chooser.setDragEnabled(true);/* w  w w .j  a  va2 s.  com*/
    add(chooser, BorderLayout.PAGE_START);

    //Create the color transfer handler.
    colorHandler = new ColorTransferHandler();

    //Create a matrix of 9 buttons.
    JPanel buttonPanel = new JPanel(new GridLayout(3, 3));
    for (int i = 0; i < 9; i++) {
        JButton tmp = new JButton("Button " + i);
        tmp.setTransferHandler(colorHandler);
        buttonPanel.add(tmp);
    }
    add(buttonPanel, BorderLayout.CENTER);

    //Create a check box.
    toggleForeground = new JCheckBox("Change the foreground color.");
    toggleForeground.setSelected(true);
    toggleForeground.addActionListener(this);
    JPanel textPanel = new JPanel(new BorderLayout());
    textPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
    textPanel.add(toggleForeground, BorderLayout.PAGE_START);

    //Create a label.
    JLabel label = new JLabel("Change the color of any button or this label by dropping a color.");
    label.setTransferHandler(colorHandler);
    label.setOpaque(true); //So the background color can be changed.
    textPanel.add(label, BorderLayout.PAGE_END);
    add(textPanel, BorderLayout.PAGE_END);
}

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