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Wallpaper.java
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Wallpaper.java
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/*
* Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle or 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.*;
import javax.swing.*;
import javax.swing.plaf.LayerUI;
public class Wallpaper {
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createUI();
}
});
}
public static void createUI() {
JFrame f = new JFrame("Wallpaper");
JPanel panel = createPanel();
LayerUI<JComponent> layerUI = new WallpaperLayerUI();
JLayer<JComponent> jlayer = new JLayer<JComponent>(panel, layerUI);
f.add (jlayer);
f.setSize(300, 200);
f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
f.setLocationRelativeTo (null);
f.setVisible (true);
}
private static JPanel createPanel() {
JPanel p = new JPanel();
ButtonGroup entreeGroup = new ButtonGroup();
JRadioButton radioButton;
p.add(radioButton = new JRadioButton("lkjlk", true));
entreeGroup.add(radioButton);
p.add(radioButton = new JRadioButton("khlkh"));
entreeGroup.add(radioButton);
p.add(radioButton = new JRadioButton("Vegetable"));
entreeGroup.add(radioButton);
p.add(new JCheckBox("Ketchup"));
p.add(new JCheckBox("Mustard"));
p.add(new JCheckBox("Pickles"));
p.add(new JLabel("Special requests:"));
p.add(new JTextField(20));
JButton orderButton = new JButton("Place Order");
p.add(orderButton);
return p;
}
}
class WallpaperLayerUI extends LayerUI<JComponent> {
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
public void paint(Graphics g, JComponent c) {
super.paint(g, c);
Graphics2D g2 = (Graphics2D) g.create();
int w = c.getWidth();
int h = c.getHeight();
g2.setComposite(AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, .5f));
g2.setPaint(new GradientPaint(0, 0, Color.yellow, 0, h, Color.red));
g2.fillRect(0, 0, w, h);
g2.dispose();
}
}