Example usage for javax.swing TransferHandler exportAsDrag

List of usage examples for javax.swing TransferHandler exportAsDrag

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Introduction

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

Prototype

public void exportAsDrag(JComponent comp, InputEvent e, int action)

Source Link

Document

Causes the Swing drag support to be initiated.

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);
        }// ww w.  jav  a 2s.c o m
    });
}

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);
        }//from w ww .  ja  v  a2  s .  c o  m
    };
    label.addMouseListener(listener);
    frame.add(label, BorderLayout.SOUTH);

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

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

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);/*www. 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);
}

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 ww  .jav a  2s  . c o m
    };
    label.addMouseListener(listener);
    frame.add(new JScrollPane(label), BorderLayout.CENTER);

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

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);
        }// w  ww.  j a  v  a 2s  .c  o m
    };
    label.addMouseListener(listener);
    frame.add(new JScrollPane(label), BorderLayout.CENTER);

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

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);
        }/* w  w w . j  a  v  a 2 s.  c  om*/
    };
    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();
}

From source file:DragMouseAdapter.java

public void mousePressed(MouseEvent e) {
    JComponent c = (JComponent) e.getSource();
    TransferHandler handler = c.getTransferHandler();
    handler.exportAsDrag(c, e, TransferHandler.COPY);
}

From source file:MainClass.java

public MainClass() {
    Container cp = new Box(BoxLayout.X_AXIS);
    setContentPane(cp);//from w ww.ja va  2 s .c om
    JPanel firstPanel = new JPanel();
    propertyComboBox = new JComboBox();
    propertyComboBox.addItem("text");
    propertyComboBox.addItem("font");
    propertyComboBox.addItem("background");
    propertyComboBox.addItem("foreground");
    firstPanel.add(propertyComboBox);
    cp.add(firstPanel);
    cp.add(Box.createGlue());

    tf = new JTextField("Hello");
    tf.setForeground(Color.RED);
    tf.setDragEnabled(true);
    cp.add(tf);

    cp.add(Box.createGlue());

    l = new JLabel("Hello");
    l.setBackground(Color.YELLOW);
    cp.add(l);

    cp.add(Box.createGlue());

    JSlider stryder = new JSlider(SwingConstants.VERTICAL);
    stryder.setMinimum(10);
    stryder.setValue(14);
    stryder.setMaximum(72);
    stryder.setMajorTickSpacing(10);
    stryder.setPaintTicks(true);

    cp.add(stryder);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(500, 300);

    setMyTransferHandlers((String) propertyComboBox.getSelectedItem());

    MouseListener myDragListener = new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            JComponent c = (JComponent) e.getSource();
            TransferHandler handler = c.getTransferHandler();
            handler.exportAsDrag(c, e, TransferHandler.COPY);
        }
    };
    l.addMouseListener(myDragListener);

    propertyComboBox.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ce) {
            JComboBox bx = (JComboBox) ce.getSource();
            String prop = (String) bx.getSelectedItem();
            setMyTransferHandlers(prop);
        }
    });

    tf.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            JTextField jtf = (JTextField) evt.getSource();
            String fontName = jtf.getText();
            Font font = new Font(fontName, Font.BOLD, 18);
            tf.setFont(font);
        }
    });

    stryder.addChangeListener(new ChangeListener() {
        public void stateChanged(ChangeEvent evt) {
            JSlider sl = (JSlider) evt.getSource();
            Font oldf = tf.getFont();
            Font newf = oldf.deriveFont((float) sl.getValue());
            tf.setFont(newf);
        }
    });
}

From source file:Transfer.java

public Transfer() {

    // Establish the GUI
    Container cp = new Box(BoxLayout.X_AXIS);
    setContentPane(cp);/*ww  w  .  jav a2  s .co  m*/
    JPanel firstPanel = new JPanel();
    propertyComboBox = new JComboBox();
    propertyComboBox.addItem("text");
    propertyComboBox.addItem("font");
    propertyComboBox.addItem("background");
    propertyComboBox.addItem("foreground");
    firstPanel.add(propertyComboBox);
    cp.add(firstPanel);
    cp.add(Box.createGlue());

    tf = new JTextField("Hello");
    tf.setForeground(Color.RED);
    tf.setDragEnabled(true);
    cp.add(tf);

    cp.add(Box.createGlue());

    l = new JLabel("Hello");
    l.setBackground(Color.YELLOW);
    cp.add(l);

    cp.add(Box.createGlue());

    JSlider stryder = new JSlider(SwingConstants.VERTICAL);
    stryder.setMinimum(10);
    stryder.setValue(14);
    stryder.setMaximum(72);
    stryder.setMajorTickSpacing(10);
    stryder.setPaintTicks(true);

    cp.add(stryder);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(500, 300);

    // Add Listeners and Converters
    setMyTransferHandlers((String) propertyComboBox.getSelectedItem());

    // Mousing in the Label starts a Drag.
    MouseListener myDragListener = new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            JComponent c = (JComponent) e.getSource();
            TransferHandler handler = c.getTransferHandler();
            handler.exportAsDrag(c, e, TransferHandler.COPY);
        }
    };
    l.addMouseListener(myDragListener);

    // Selecting in the ComboBox makes that the property that is xfered.
    propertyComboBox.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ce) {
            JComboBox bx = (JComboBox) ce.getSource();
            String prop = (String) bx.getSelectedItem();
            setMyTransferHandlers(prop);
        }
    });

    // Typing a word and pressing enter in the TextField tries
    // to set that as the font name.
    tf.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            JTextField jtf = (JTextField) evt.getSource();
            String fontName = jtf.getText();
            Font font = new Font(fontName, Font.BOLD, 18);
            tf.setFont(font);
        }
    });

    // Setting the Slider sets that font into the textfield.
    stryder.addChangeListener(new ChangeListener() {
        public void stateChanged(ChangeEvent evt) {
            JSlider sl = (JSlider) evt.getSource();
            Font oldf = tf.getFont();
            Font newf = oldf.deriveFont((float) sl.getValue());
            tf.setFont(newf);
        }
    });

}

From source file:DragPictureDemo2.java

public void mouseDragged(MouseEvent e) {
    //Don't bother to drag if the component displays no image.
    if (image == null)
        return;//  w  ww .j  a  va  2 s.c  o m

    if (firstMouseEvent != null) {
        e.consume();

        //If they are holding down the control key, COPY rather than MOVE
        int ctrlMask = InputEvent.CTRL_DOWN_MASK;
        int action = ((e.getModifiersEx() & ctrlMask) == ctrlMask) ? TransferHandler.COPY
                : TransferHandler.MOVE;

        int dx = Math.abs(e.getX() - firstMouseEvent.getX());
        int dy = Math.abs(e.getY() - firstMouseEvent.getY());
        //Arbitrarily define a 5-pixel shift as the
        //official beginning of a drag.
        if (dx > 5 || dy > 5) {
            //This is a drag, not a click.
            JComponent c = (JComponent) e.getSource();
            TransferHandler handler = c.getTransferHandler();
            //Tell the transfer handler to initiate the drag.
            handler.exportAsDrag(c, firstMouseEvent, action);
            firstMouseEvent = null;
        }
    }
}