/* * @(#)Stars3D.java 1.34 10/03/23 * * Copyright (c) 2006, 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: * * -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 Oracle 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 MICROSYSTEMS, 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 1.34 10/03/23 */ 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; import static java.awt.Color.*; /** * 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[] = { RED, GREEN, 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(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(BLUE); g2.fill(tshape); g2.setColor(new Color(255, 255, 255, 200)); g2.fill(ribbon); g2.setColor(WHITE); g2.fill(shape); g2.setColor(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(BLACK); add(l); add(tf1 = new JTextField(demo.text)); tf1.setPreferredSize(new Dimension(60,20)); tf1.addActionListener(this); l = new JLabel(" Size:"); l.setForeground(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 length = getSize().width / 4; int size[] = { length, length }; String str[] = { "JAVA", "J2D" }; while (thread == me) { for (int i = 0; i < str.length; 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