| Stars3D.java |
/*
* @(#)Stars3D.java 1.28 04/07/26
*
* Copyright (c) 2004 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
/*
* @(#)Stars3D.java 1.25 03/10/26
*/
package java2d.demos.Mix;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.font.FontRenderContext;
import javax.swing.*;
import java2d.ControlsSurface;
import java2d.CustomControls;
/**
* Generate a 3D text shape with GeneralPath, render a number of small
* multi-colored rectangles and then render the 3D text shape.
*/
public class Stars3D extends ControlsSurface {
private static Color colors[] = { Color.red, Color.green, Color.white };
private static AffineTransform at = AffineTransform.getTranslateInstance(-5, -5);
private Shape shape, tshape;
private Shape ribbon;
protected int fontSize = 72;
protected String text = "Java2D";
protected int numStars = 300;
private DemoControls controls;
public Stars3D() {
setBackground(Color.black);
setControls(new Component[] { new DemoControls(this) });
}
public void render(int w, int h, Graphics2D g2) {
Rectangle2D rect = new Rectangle2D.Double();
for (int i = 0; i < numStars; i++) {
g2.setColor(colors[i%3]);
g2.setComposite(AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, (float) Math.random()));
rect.setRect(w*Math.random(), h*Math.random(),2,2);
g2.fill(rect);
}
FontRenderContext frc = g2.getFontRenderContext();
Font font = new Font("serif.bolditalic", Font.PLAIN, fontSize);
shape = font.createGlyphVector(frc, text).getOutline();
tshape = at.createTransformedShape(shape);
PathIterator pi = shape.getPathIterator(null);
float seg[] = new float[6];
float tseg[] = new float[6];
GeneralPath working = new GeneralPath(GeneralPath.WIND_NON_ZERO);
float x=0, y=0; // Current point on the path
float tx=0, ty=0; // Transformed path point
float cx=0, cy=0; // Last moveTo point, for SEG_CLOSE
float tcx=0, tcy=0; // Transformed last moveTo point
//
// Iterate through the Shape and build the ribbon
// by adding general path objects.
//
while(!pi.isDone()) {
int segType = pi.currentSegment(seg);
switch(segType) {
case PathIterator.SEG_MOVETO:
at.transform(seg, 0, tseg, 0, 1);
x = seg[0];
y = seg[1];
tx = tseg[0];
ty = tseg[1];
cx = x;
cy = y;
tcx = tx;
tcy = ty;
break;
case PathIterator.SEG_LINETO:
at.transform(seg, 0, tseg, 0, 1);
if (Line2D.relativeCCW(x, y, tx, ty,
seg[0], seg[1]) < 0) {
working.moveTo(x, y);
working.lineTo(seg[0], seg[1]);
working.lineTo(tseg[0], tseg[1]);
working.lineTo(tx, ty);
working.lineTo(x, y);
} else {
working.moveTo(x, y);
working.lineTo(tx, ty);
working.lineTo(tseg[0], tseg[1]);
working.lineTo(seg[0], seg[1]);
working.lineTo(x, y);
}
x = seg[0];
y = seg[1];
tx = tseg[0];
ty = tseg[1];
break;
case PathIterator.SEG_QUADTO:
at.transform(seg, 0, tseg, 0, 2);
if (Line2D.relativeCCW(x, y, tx, ty,
seg[2], seg[3]) < 0) {
working.moveTo(x, y);
working.quadTo(seg[0], seg[1],
seg[2], seg[3]);
working.lineTo(tseg[2], tseg[3]);
working.quadTo(tseg[0], tseg[1],
tx, ty);
working.lineTo(x, y);
} else {
working.moveTo(x, y);
working.lineTo(tx, ty);
working.quadTo(tseg[0], tseg[1],
tseg[2], tseg[3]);
working.lineTo(seg[2], seg[3]);
working.quadTo(seg[0], seg[1],
x, y);
}
x = seg[2];
y = seg[3];
tx = tseg[2];
ty = tseg[3];
break;
case PathIterator.SEG_CUBICTO:
at.transform(seg, 0, tseg, 0, 3);
if (Line2D.relativeCCW(x, y, tx, ty,
seg[4], seg[5]) < 0) {
working.moveTo(x, y);
working.curveTo(seg[0], seg[1],
seg[2], seg[3],
seg[4], seg[5]);
working.lineTo(tseg[4], tseg[5]);
working.curveTo(tseg[2], tseg[3],
tseg[0], tseg[1],
tx, ty);
working.lineTo(x, y);
} else {
working.moveTo(x, y);
working.lineTo(tx, ty);
working.curveTo(tseg[0], tseg[1],
tseg[2], tseg[3],
tseg[4], tseg[5]);
working.lineTo(seg[4], seg[5]);
working.curveTo(seg[2], seg[3],
seg[0], seg[1],
x, y);
}
x = seg[4];
y = seg[5];
tx = tseg[4];
ty = tseg[5];
break;
case PathIterator.SEG_CLOSE:
if (Line2D.relativeCCW(x, y, tx, ty,
cx, cy) < 0) {
working.moveTo(x, y);
working.lineTo(cx, cy);
working.lineTo(tcx, tcy);
working.lineTo(tx, ty);
working.lineTo(x, y);
} else {
working.moveTo(x, y);
working.lineTo(tx, ty);
working.lineTo(tcx, tcy);
working.lineTo(cx, cy);
working.lineTo(x, y);
}
x = cx;
y = cy;
tx = tcx;
ty = tcy;
}
pi.next();
} // while
ribbon = working;
if (composite != null) {
g2.setComposite(composite);
} else {
g2.setComposite(AlphaComposite.SrcOver);
}
Rectangle r = shape.getBounds();
g2.translate(w*.5-r.width*.5,h*.5+r.height*.5);
g2.setColor(Color.blue);
g2.fill(tshape);
g2.setColor(new Color(255, 255, 255, 200));
g2.fill(ribbon);
g2.setColor(Color.white);
g2.fill(shape);
g2.setColor(Color.blue);
g2.draw(shape);
}
public static void main(String argv[]) {
createDemoFrame(new Stars3D());
}
static class DemoControls extends CustomControls implements ActionListener {
Stars3D demo;
JTextField tf1, tf2;
public DemoControls(Stars3D demo) {
super(demo.name);
this.demo = demo;
JLabel l = new JLabel(" Text:");
l.setForeground(Color.black);
add(l);
add(tf1 = new JTextField(demo.text));
tf1.setPreferredSize(new Dimension(60,20));
tf1.addActionListener(this);
l = new JLabel(" Size:");
l.setForeground(Color.black);
add(l);
add(tf2 = new JTextField(String.valueOf(demo.fontSize)));
tf2.setPreferredSize(new Dimension(30,20));
tf2.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
try {
if (e.getSource().equals(tf1)) {
demo.text = tf1.getText().trim();
} else if (e.getSource().equals(tf2)) {
demo.fontSize = Integer.parseInt(tf2.getText().trim());
if (demo.fontSize < 10) {
demo.fontSize = 10;
}
}
demo.repaint();
} catch (Exception ex) {}
}
public Dimension getPreferredSize() {
return new Dimension(200,37);
}
public void run() {
Thread me = Thread.currentThread();
try { thread.sleep(999); } catch (Exception e) { return; }
int width = getSize().width;
int size[] = { (int)(width*.25), (int)(width*.35)};
String str[] = { "JAVA", "J2D" };
while (thread == me) {
for (int i = 0; i < 2; i++) {
demo.fontSize = size[i];
tf2.setText(String.valueOf(demo.fontSize));
tf1.setText(demo.text = str[i]);
demo.repaint();
try {
thread.sleep(5555);
} catch (InterruptedException e) { return; }
}
}
thread = null;
}
} // End DemoControls
} // End Stars3D