功能强大的绘图演示程序

源代码在线查看: tree.java

软件大小: 329 K
上传用户: sky20090313
关键词: 绘图 程序
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相关代码

				/*				 * @(#)Tree.java	1.26 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.				 */								/*				 * @(#)Tree.java	1.26 04/07/26				 */								package java2d.demos.Fonts;								import java.awt.*;				import java.awt.font.FontRenderContext;				import java.awt.font.TextLayout;				import java.awt.geom.AffineTransform;				import java2d.AnimatingSurface;												/**				 * Transformation of characters.				 */				public class Tree extends AnimatingSurface {								    private char theC = 'A';				    private Character theT = new Character(theC);				    private Character theR = new Character((char) ((int) theC + 1));												    public Tree() {				        setBackground(Color.white);				    }												    public void reset(int w, int h) { }												    public void step(int w, int h) {				        setSleepAmount(4000);				        theT = new Character(theC = ((char) ((int) theC + 1)));				        theR = new Character((char) ((int) theC + 1));				        if (theR.compareTo(new Character('z')) == 0) {				            theC = 'A';				        }				    }												    public void render(int w, int h, Graphics2D g2) {				        int mindim = Math.min(w, h);				        AffineTransform at = new AffineTransform();				        at.translate((w - mindim) / 2.0,				                     (h - mindim) / 2.0);				        at.scale(mindim, mindim);				        at.translate(0.5, 0.5);				        at.scale(0.3, 0.3);				        at.translate(-(Twidth + Rwidth), FontHeight / 4.0);				        g2.transform(at);				        tree(g2, mindim * 0.3, 0);								    }												    static Font theFont = new Font("serif", Font.PLAIN, 1);				    static double Twidth = 0.6;				    static double Rwidth = 0.6;				    static double FontHeight = 0.75;				    static Color colors[] = {Color.blue,				                             Color.red.darker(),				                             Color.green.darker()};												    public void tree(Graphics2D g2d, double size, int phase) {				        g2d.setColor(colors[phase % 3]);				        new TextLayout(theT.toString(),theFont,g2d.getFontRenderContext()).draw(g2d, 0.0f, 0.0f);				        if (size > 10.0) {				            AffineTransform at = new AffineTransform();				            at.setToTranslation(Twidth, -0.1);				            at.scale(0.6, 0.6);				            g2d.transform(at);				            size *= 0.6;				            new TextLayout(theR.toString(),theFont, g2d.getFontRenderContext()).draw(g2d, 0.0f, 0.0f);				            at.setToTranslation(Rwidth+0.75, 0);				            g2d.transform(at);				            Graphics2D g2dt = (Graphics2D) g2d.create();				            at.setToRotation(-Math.PI / 2.0);				            g2dt.transform(at);				            tree(g2dt, size, phase + 1);				            g2dt.dispose();				            at.setToTranslation(.75, 0);				            at.rotate(-Math.PI / 2.0);				            at.scale(-1.0, 1.0);				            at.translate(-Twidth, 0);				            g2d.transform(at);				            tree(g2d, size, phase);				        }				        g2d.setTransform(new AffineTransform());				    }												    public static void main(String argv[]) {				        createDemoFrame(new Tree());				    }				}							

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