Java/Advanced Graphics/Light
Shedding Light Demo
/*
* 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.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.font.TextLayout;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.ButtonModel;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.plaf.basic.BasicButtonUI;
import java.awt.Color;
import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
/**
*
* @author Romain Guy <romain.guy@mac.ru>
*/
public class SheddingLightDemo extends JFrame {
public SheddingLightDemo() {
super("Shedding Light");
JPanel panel = new JPanel(new FlowLayout());
panel.setBackground(new Color(0x8B93A3));
panel.add(new LightButton("Shed"));
panel.add(new LightButton("The"));
panel.add(new LightButton("Light"));
add(panel);
pack();
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
} catch (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InstantiationException ex) {
ex.printStackTrace();
} catch (UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new SheddingLightDemo().setVisible(true);
}
});
}
}
/*
* 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.
*/
class LightButton extends JButton {
private float shadowOffsetX;
private float shadowOffsetY;
private Color shadowColor = Color.BLACK;
private int shadowDirection = 60;
private Image normalButton, normalButtonPressed, buttonHighlight;
private int shadowDistance = 1;
private Insets sourceInsets = new Insets(6, 7, 6, 8);
private Dimension buttonDimension = new Dimension(116, 35);
private Color buttonForeground = Color.WHITE;
private Font buttonFont = new Font("Arial", Font.BOLD, 22);
private float ghostValue;
private boolean main = false;
public LightButton(String text) {
this();
setText(text);
}
public LightButton(Action a) {
this();
setAction(a);
}
public LightButton() {
computeShadow();
setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
setForeground(buttonForeground);
setFont(buttonFont);
setContentAreaFilled(false);
setBorderPainted(false);
setFocusable(false);
normalButton = loadImage("button-normal.png");
normalButtonPressed = loadImage("button-normal-pressed.png");
buttonHighlight = loadImage("header-halo.png");
// Hacky? Hacky!
setUI(new BasicButtonUI() {
@Override
public Dimension getMinimumSize(JComponent c) {
return getPreferredSize(c);
}
@Override
public Dimension getMaximumSize(JComponent c) {
return getPreferredSize(c);
}
@Override
public Dimension getPreferredSize(JComponent c) {
Insets insets = c.getInsets();
Dimension d = new Dimension(buttonDimension);
d.width += insets.left + insets.right;
d.height += insets.top + insets.bottom;
return d;
}
});
}
private static Image loadImage(String fileName) {
try {
return ImageIO.read(LightButton.class.getResource(fileName));
} catch (IOException ex) {
return null;
}
}
private void computeShadow() {
double rads = Math.toRadians(shadowDirection);
shadowOffsetX = (float) Math.cos(rads) * shadowDistance;
shadowOffsetY = (float) Math.sin(rads) * shadowDistance;
}
private Image getImage(boolean armed) {
return armed ? normalButtonPressed : normalButton;
}
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
ButtonModel m = getModel();
Insets insets = getInsets();
int width = getWidth() - insets.left - insets.right;
int height = getHeight() - insets.top - insets.bottom;
tileStretchPaint(g2,this,(BufferedImage) getImage(m.isArmed()), sourceInsets);
if (getModel().isRollover()) {
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(buttonHighlight,
insets.left + 2, insets.top + 2,
width - 4, height - 4, null);
}
FontMetrics fm = getFontMetrics(getFont());
TextLayout layout = new TextLayout(getText(),
getFont(),
g2.getFontRenderContext());
Rectangle2D bounds = layout.getBounds();
int x = (int) (getWidth() - insets.left - insets.right -
bounds.getWidth()) / 2;
//x -= 2;
int y = (getHeight() - insets.top - insets.bottom -
fm.getMaxAscent() - fm.getMaxDescent()) / 2;
y += fm.getAscent() - 1;
if (m.isArmed()) {
x += 1;
y += 1;
}
g2.setColor(shadowColor);
layout.draw(g2,
x + (int) Math.ceil(shadowOffsetX),
y + (int) Math.ceil(shadowOffsetY));
g2.setColor(getForeground());
layout.draw(g2, x, y);
}
/**
* Draws an image on top of a component by doing a 3x3 grid stretch of the image
* using the specified insets.
*
* From SwingLabs, licensed under LGPL
*/
public static void tileStretchPaint(Graphics g,
JComponent comp,
BufferedImage img,
Insets ins) {
int left = ins.left;
int right = ins.right;
int top = ins.top;
int bottom = ins.bottom;
// top
g.drawImage(img,
0,0,left,top,
0,0,left,top,
null);
g.drawImage(img,
left, 0,
comp.getWidth() - right, top,
left, 0,
img.getWidth() - right, top,
null);
g.drawImage(img,
comp.getWidth() - right, 0,
comp.getWidth(), top,
img.getWidth() - right, 0,
img.getWidth(), top,
null);
// middle
g.drawImage(img,
0, top,
left, comp.getHeight()-bottom,
0, top,
left, img.getHeight()-bottom,
null);
g.drawImage(img,
left, top,
comp.getWidth()-right, comp.getHeight()-bottom,
left, top,
img.getWidth()-right, img.getHeight()-bottom,
null);
g.drawImage(img,
comp.getWidth()-right, top,
comp.getWidth(), comp.getHeight()-bottom,
img.getWidth()-right, top,
img.getWidth(), img.getHeight()-bottom,
null);
// bottom
g.drawImage(img,
0,comp.getHeight()-bottom,
left, comp.getHeight(),
0,img.getHeight()-bottom,
left,img.getHeight(),
null);
g.drawImage(img,
left, comp.getHeight()-bottom,
comp.getWidth()-right, comp.getHeight(),
left, img.getHeight()-bottom,
img.getWidth()-right, img.getHeight(),
null);
g.drawImage(img,
comp.getWidth()-right, comp.getHeight()-bottom,
comp.getWidth(), comp.getHeight(),
img.getWidth()-right, img.getHeight()-bottom,
img.getWidth(), img.getHeight(),
null);
}
}
