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| Swing and 3D : book | |
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// From Romain Guy's Weblog [email protected]
//
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Paint;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.net.URL;
import java.util.HashMap;
import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.Background;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.ImageComponent2D;
import javax.media.j3d.PolygonAttributes;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Texture;
import javax.media.j3d.Texture2D;
import javax.media.j3d.TextureAttributes;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.View;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class BooksDemo extends JFrame {
private static final int CANVAS3D_WIDTH = 400;
private static final int CANVAS3D_HEIGHT = 400;
private boolean front = true;
private JPanel xpanel = new JPanel();
private Canvas3D c3d;
private RotationInterpolator rotator1;
private Alpha rotor1Alpha;
private com.sun.j3d.utils.geometry.Box book;
private HashMap textures = new HashMap(6);
public BooksDemo() {
super("AmazonPick");
JButton cover1 = UIHelper.createButton("", "cover1_small_button", true);
cover1.addActionListener(new CoverSwitcher("cover1"));
JButton cover2 = UIHelper.createButton("", "cover2_small_button", true);
cover2.addActionListener(new CoverSwitcher("cover2"));
JButton cover3 = UIHelper.createButton("", "cover3_small_button", true);
cover3.addActionListener(new CoverSwitcher("cover3"));
JPanel buttons = new JPanel();
buttons.add(cover1);
buttons.add(cover2);
buttons.add(cover3);
buttons.setOpaque(false);
c3d = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
c3d.setSize(CANVAS3D_WIDTH, CANVAS3D_HEIGHT);
xpanel.add(c3d);
xpanel.setOpaque(false);
this.setContentPane(new GradientPanel());
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add(xpanel, BorderLayout.CENTER);
this.getContentPane().add(buttons, BorderLayout.SOUTH);
this.pack();
this.setResizable(false);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
UIHelper.centerOnScreen(this);
}
private boolean isBookShowingFront() {
return front;
}
private void rotateBook() {
if (!isBookShowingFront()) {
rotator1.setMinimumAngle((float) Math.PI * 1.0f);
rotator1.setMaximumAngle(0.0f);
} else {
rotator1.setMinimumAngle(0.0f);
rotator1.setMaximumAngle((float) Math.PI * 1.0f);
}
front = !front;
rotor1Alpha.setStartTime(System.currentTimeMillis());
}
private class CoverSwitcher implements ActionListener {
private String coverName;
CoverSwitcher(String coverName) {
this.coverName = coverName;
}
public void actionPerformed(ActionEvent evt) {
book.getShape(isBookShowingFront() ? book.BACK : book.FRONT)
.setAppearance((Appearance) textures.get(coverName));
rotateBook();
}
}
public void createScene() {
BufferedImage image = new BufferedImage(xpanel.getWidth(), xpanel
.getHeight(), BufferedImage.TYPE_INT_RGB);
getContentPane().paint(image.getGraphics());
BufferedImage subImage = new BufferedImage(CANVAS3D_WIDTH,
CANVAS3D_HEIGHT, BufferedImage.TYPE_INT_RGB);
((Graphics2D) subImage.getGraphics()).drawImage(image, null, -c3d
.getX(), -c3d.getY());
Background bg = new Background(new ImageComponent2D(
ImageComponent2D.FORMAT_RGB, subImage));
BoundingSphere bounds = new BoundingSphere();
bounds.setRadius(100.0);
bg.setApplicationBounds(bounds);
BranchGroup objRoot = new BranchGroup();
objRoot.addChild(bg);
TransformGroup objTg = new TransformGroup();
objTg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
Transform3D yAxis = new Transform3D();
rotor1Alpha = new Alpha(1, 400);
rotator1 = new RotationInterpolator(rotor1Alpha, objTg, yAxis,
(float) Math.PI * 1.0f, (float) Math.PI * 2.0f);
rotator1.setSchedulingBounds(bounds);
textures.put("pages_top", createTexture("pages_top.jpg"));
textures.put("pages", createTexture("amazon.jpg"));
textures.put("amazon", createTexture("amazon.jpg"));
textures.put("cover1", createTexture("cover1.jpg"));
textures.put("cover2", createTexture("cover2.jpg"));
textures.put("cover3", createTexture("cover3.jpg"));
book = new com.sun.j3d.utils.geometry.Box(0.5f, 0.7f, 0.15f,
com.sun.j3d.utils.geometry.Box.GENERATE_TEXTURE_COORDS,
new Appearance());
book.getShape(book.TOP).setAppearance(
(Appearance) textures.get("pages_top"));
book.getShape(book.RIGHT).setAppearance(
(Appearance) textures.get("pages"));
book.getShape(book.LEFT).setAppearance(
(Appearance) textures.get("amazon"));
book.getShape(book.FRONT).setAppearance(
(Appearance) textures.get("cover1"));
book.getShape(book.BACK).setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
book.getShape(book.FRONT).setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
// book.getShape(book.LEFT).setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
// book.getShape(book.RIGHT).setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
objTg.addChild(book);
objTg.addChild(rotator1);
Transform3D spin = new Transform3D();
Transform3D tempspin = new Transform3D();
spin.rotX(Math.PI / 8.0d);
tempspin.rotY(Math.PI / 7.0d);
spin.mul(tempspin);
TransformGroup objTrans = new TransformGroup(spin);
objTrans.addChild(objTg);
objRoot.addChild(objTrans);
SimpleUniverse u = new SimpleUniverse(c3d);
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(objRoot);
View view = u.getViewer().getView();
view.setSceneAntialiasingEnable(true);
}
private Appearance createTexture(String fileName) {
Image sourceImage = UIHelper.readImage(fileName);
if (sourceImage == null)
System.out.println("Image could not be loaded from " + fileName);
TextureLoader loader = new TextureLoader(sourceImage, this);
ImageComponent2D image = loader.getImage();
if (image == null)
System.out.println("Texture could not be loaded from " + fileName);
Texture2D texture = new Texture2D(Texture.BASE_LEVEL, Texture.RGBA,
image.getWidth(), image.getHeight());
texture.setImage(0, image);
texture.setEnable(true);
texture.setMagFilter(Texture.BASE_LEVEL_LINEAR);
texture.setMinFilter(Texture.BASE_LEVEL_LINEAR);
Appearance appearance = new Appearance();
PolygonAttributes polyAttributes = new PolygonAttributes(
PolygonAttributes.POLYGON_FILL, PolygonAttributes.CULL_NONE, 0f);
appearance.setPolygonAttributes(polyAttributes);
appearance.setTexture(texture);
TextureAttributes textureAttributes = new TextureAttributes();
appearance.setTextureAttributes(textureAttributes);
return appearance;
}
private static class GradientPanel extends JPanel {
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (!isOpaque()) {
return;
}
int width = getWidth();
int height = getHeight();
Graphics2D g2 = (Graphics2D) g;
Paint storedPaint = g2.getPaint();
g2.setPaint(new GradientPaint(0, 0, Color.WHITE, width, height,
new Color(200, 200, 200)));
g2.fillRect(0, 0, width, height);
g2.setPaint(storedPaint);
}
}
public static void main(String argv[]) {
final BooksDemo xframe = new BooksDemo();
xframe.setVisible(true);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
xframe.createScene();
}
});
}
}
final class UIHelper {
public static JButton createButton(String text) {
JButton button = new JButton(text);
button.setFocusPainted(true);
button.setBorderPainted(true);
button.setContentAreaFilled(true);
return button;
}
public static JButton createButton(String text, String icon) {
return createButton(text, icon, false);
}
public static JButton createButton(String text, String icon, boolean flat) {
ImageIcon iconNormal = readImageIcon(icon + ".png");
ImageIcon iconHighlight = readImageIcon(icon + "_highlight.png");
ImageIcon iconPressed = readImageIcon(icon + "_pressed.png");
JButton button = new JButton(text, iconNormal);
button.setFocusPainted(!flat);
button.setBorderPainted(!flat);
button.setContentAreaFilled(!flat);
if (iconHighlight != null) {
button.setRolloverEnabled(true);
button.setRolloverIcon(iconHighlight);
}
if (iconPressed != null)
button.setPressedIcon(iconPressed);
return button;
}
public static void centerOnScreen(Component component) {
Dimension paneSize = component.getSize();
Dimension screenSize = component.getToolkit().getScreenSize();
component.setLocation((screenSize.width - paneSize.width) / 2,
(screenSize.height - paneSize.height) / 2);
}
public static ImageIcon readImageIcon(String fileName) {
Image image = readImage(fileName);
if (image == null)
return null;
return new ImageIcon(image);
}
public static Image readImage(String fileName) {
URL url = UIHelper.class.getResource("images/" + fileName);
if (url == null)
return null;
return java.awt.Toolkit.getDefaultToolkit().getImage(url);
}
}
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