java 关于动画的一段处理程序,很精采的-java animation on the procedures for hand

/* * Copyright (c) 2003 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: * * -Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * -Redistribution in binary form must reproduct 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 AND ITS LICENSORS SHALL NOT * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE 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 SOFTWARE, EVEN * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended for * use in the design, construction, operation or maintenance of any nuclear * facility. */ /* * @(#)Animator.java 1.9 03/01/23 */ import java.awt.*; import java.awt.event.*; import java.applet.Applet; import java.applet.AudioClip; import java.util.Vector; import java.util.Hashtable; import java.util.Enumeration; import java.net.URL; import java.net.MalformedURLException; import java.util.List; import java.util.ArrayList; import java.util.Iterator; /** * An applet that plays a sequence of images, as a loop or a one-shot. * Can have a soundtrack and/or sound effects tied to individual frames. * See the <a href="http://java.sun.com/applets/applets/Animator/">Animator * home page</a> for details and updates. * * @author Herb Jellinek * @version 1.9, 01/23/03 */ public class Animator extends Applet implements Runnable, MouseListener { int appWidth = 0; // Animator width int appHeight = 0; // Animator height Thread engine = null; // Thread animating the images boolean userPause = false; // True if thread currently paused by user boolean loaded = false; // Can we paint yet? boolean error = false; // Was there an initialization error? Animation animation = null; // Animation this animator contains String hrefTarget = null; // Frame target of reference URL if any URL hrefURL = null; // URL link for information if any static final String sourceLocation = "http://java.sun.com/applets/applets/Animator/"; static final String userInstructions = "shift-click for errors, info"; static final int STARTUP_ID = 0; static final int BACKGROUND_ID = 1; static final int ANIMATION_ID = 2; /** * Applet info. */ public String getAppletInfo() { return "Animator v1.10 (02/05/97), by Herb Jellinek"; } /** * Parameter info. */ public String[][] getParameterInfo() { String[][] info = { {"imagesource", "URL", "a directory"}, {"startup", "URL", "image displayed at start-up"}, {"backgroundcolor", "int", "background color (24-bit RGB number)"}, {"background", "URL", "image displayed as background"}, {"startimage", "int", "index of first image"}, {"endimage", "int", "index of last image"}, {"namepattern", "URL", "generates indexed names"}, {"images", "URLs", "list of image indices"}, {"href", "URL", "page to visit on mouse-click"}, {"target", "name", "frame to put that page in"}, {"pause", "int", "global pause, milliseconds"}, {"pauses", "ints", "individual pauses, milliseconds"}, {"repeat", "boolean", "repeat? true or false"}, {"positions", "coordinates", "path images will follow"}, {"soundsource", "URL", "audio directory"}, {"soundtrack", "URL", "background music"}, {"sounds", "URLs", "list of audio samples"}, }; return info; } /** * Show a crude "About" box. Displays credits, errors (if any), and * parameter values and documentation. */ void showDescription() { DescriptionFrame description = new DescriptionFrame(); description.tell("\t\t"+getAppletInfo()+"\n"); description.tell("Updates, documentation at "+sourceLocation+"\n\n"); description.tell("Document base: "+getDocumentBase()+"\n"); description.tell("Code base: "+getCodeBase()+"\n\n"); Object errors[] = animation.tracker.getErrorsAny(); if (errors != null) { description.tell("Applet image errors:\n"); for (int i = 0; i < errors.length; i++) { if (errors[i] instanceof Image) { AnimationFrame frame = (AnimationFrame) animation.frames.get(i); URL url = frame.imageLocation; if (url != null) { description.tell(" "+url+" not loaded\n"); } } } description.tell("\n"); } if (animation.frames == null || animation.frames.size() == 0) description.tell("\n** No images loaded **\n\n"); description.tell("Applet parameters:\n"); description.tell(" width = "+getParameter("WIDTH")+"\n"); description.tell(" height = "+getParameter("HEIGHT")+"\n"); String params[][] = getParameterInfo(); for (int i = 0; i < params.length; i++) { String name = params[i][0]; description.tell(" "+name+" = "+getParameter(name)+ "\t ["+params[i][2]+"]\n"); } description.show(); } /** * Local version of getParameter for debugging purposes. */ public String getParam(String key) { String result = getParameter(key); return result; } /** * Get parameters and parse them */ public void handleParams() { try { String param = getParam("IMAGESOURCE"); animation.imageSource = (param == null) ? getDocumentBase() : new URL(getDocumentBase(), param + "/"); String href = getParam("HREF"); if (href != null) { try { hrefURL = new URL(getDocumentBase(), href); } catch (MalformedURLException e) { showParseError(e); } } hrefTarget = getParam("TARGET"); if (hrefTarget == null) hrefTarget = "_top"; param = getParam("PAUSE"); if (param != null) animation.setGlobalPause(Integer.parseInt(param)); param = getParam("REPEAT"); animation.repeat = (param == null) ? true : (param.equalsIgnoreCase("yes") || param.equalsIgnoreCase("true")); int startImage = 1; int endImage = 1; param = getParam("ENDIMAGE"); if (param != null) { endImage = Integer.parseInt(param); param = getParam("STARTIMAGE"); if (param != null) { startImage = Integer.parseInt(param); } param = getParam("NAMEPATTERN"); animation.prepareImageRange(startImage, endImage, param); } else { param = getParam("STARTIMAGE"); if (param != null) { startImage = Integer.parseInt(param); param = getParam("NAMEPATTERN"); animation.prepareImageRange(startImage, endImage, param); } else { param = getParam("IMAGES"); if (p