How to make JLable in JPanel selectable and deletable?

Thanks a lot,

I have following code, it is runnable,

When I click the JLabel, I hope its border becomes red, whenI did not click it, no red border at all, can you help advice how to do it, I tried but failed.

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import javax.swing.BorderFactory;

import javax.swing.JComponent;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.SwingConstants;

import javax.swing.TransferHandler;

import javax.swing.border.BevelBorder;

import javax.swing.border.Border;

import javax.swing.border.EmptyBorder;

import javax.swing.border.LineBorder;

import javax.swing.border.TitledBorder;

import com.test.BevelExample.RolloverListener;

public class LabelDnD extends JPanel {

JTextField textField;

BevelBorder bevel;

JLabel label;

EmptyBorder empty;

public LabelDnD() {

super(new GridLayout(2, 1));

textField = new JTextField(40);

textField.setDragEnabled(true);

JPanel tfpanel = new JPanel(new GridLayout(1, 1));

TitledBorder t1 = BorderFactory.createTitledBorder("JTextField: drag and drop is enabled");

tfpanel.add(textField);

tfpanel.setBorder(t1);

bevel = new BevelBorder(BevelBorder.RAISED);

Border thickBorder = new LineBorder(Color.red, 10);

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

label.setTransferHandler(new TransferHandler("text"));

MouseListener listener = new DragMouseAdapter();

label.addMouseListener(listener);

label.addMouseListener(new RolloverListener());

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));

}

private class DragMouseAdapter extends MouseAdapter {

public void mousePressed(MouseEvent e) {

JComponent c = (JComponent) e.getSource();

TransferHandler handler = c.getTransferHandler();

handler.exportAsDrag(c, e, TransferHandler.COPY);

}

}

/**

* Create the GUI and show it. For thread safety, this method should be

* invoked from the event-dispatching thread.

*/

private static void createAndShowGUI() {

//Make sure we have nice window decorations.

JFrame.setDefaultLookAndFeelDecorated(true);

//Create and set up the window.

JFrame frame = new JFrame("LabelDnD");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Create and set up the content pane.

JComponent newContentPane = new LabelDnD();

newContentPane.setOpaque(true); //content panes must be opaque

frame.setContentPane(newContentPane);

//Display the window.

frame.pack();

frame.setVisible(true);

}

public static void main(String[] args) {

//Schedule a job for the event-dispatching thread:

//creating and showing this application's GUI.

javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

createAndShowGUI();

}

});

}

// Inner class to respond to mouse events for the "rollover" effect

class RolloverListener extends MouseAdapter {

public void mouseEntered(MouseEvent e) {

((JLabel)e.getComponent()).setBorder(bevel);

repaint();

}

public void mouseExited(MouseEvent e) {

((JLabel)e.getComponent()).setBorder(empty);

repaint();

}

public void mouseClicked(MouseEvent e) {

String text = ((JLabel)e.getComponent()).getText();

System.out.println("You clicked " + text + "!");

}

}

}

Thanks a lot

sunnymanmana at 2007-7-12 10:36:22 >