Translucent Panel
/*
* Copyright (c) 2007, Romain Guy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the TimingFramework project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.awt.AlphaComposite;
import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
public class TranslucentPanel extends JPanel {
BufferedImage image = null;
@Override
public void paint(Graphics g) {
if (image == null || image.getWidth() != getWidth() || image.getHeight() != getHeight()) {
image = (BufferedImage) createImage(getWidth(), getHeight());
}
Graphics2D g2 = image.createGraphics();
g2.setClip(g.getClip());
super.paint(g2);
g2.dispose();
g2 = (Graphics2D) g.create();
g2.setComposite(AlphaComposite.SrcOver.derive(0.2f));
g2.drawImage(image, 0, 0, null);
}
public static void main(String... args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JFrame f = new JFrame("Translucent Panel");
f.setContentPane(new TranslucentPanel());
f.getContentPane().setLayout(new BorderLayout());
Object[] names = new Object[] { "Title", "Artist", "Album" };
String[][] data = new String[][] { { "Los Angeles", "Sugarcult", "Lights Out" },
{ "Do It Alone", "Sugarcult", "Lights Out" },
{ "Made a Mistake", "Sugarcult", "Lights Out" },
{ "Kiss You Better", "Maximo Park", "A Certain Trigger" },
{ "All Over the Shop", "Maximo Park", "A Certain Trigger" },
{ "Going Missing", "Maximo Park", "A Certain Trigger" } };
JTable table = new JTable(data, names);
f.add(table);
JPanel p = new JPanel();
p.add(new JButton("Play"));
p.add(new JButton("Pause"));
p.add(new JButton("Stop"));
f.add(p, BorderLayout.SOUTH);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(400, 300);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
}
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