001/* 002 * SVG Salamander 003 * Copyright (c) 2004, Mark McKay 004 * All rights reserved. 005 * 006 * Redistribution and use in source and binary forms, with or 007 * without modification, are permitted provided that the following 008 * conditions are met: 009 * 010 * - Redistributions of source code must retain the above 011 * copyright notice, this list of conditions and the following 012 * disclaimer. 013 * - Redistributions in binary form must reproduce the above 014 * copyright notice, this list of conditions and the following 015 * disclaimer in the documentation and/or other materials 016 * provided with the distribution. 017 * 018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 029 * OF THE POSSIBILITY OF SUCH DAMAGE. 030 * 031 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other 032 * projects can be found at http://www.kitfox.com 033 * 034 * Created on September 21, 2004, 11:34 PM 035 */ 036 037package com.kitfox.svg.animation; 038 039import com.kitfox.svg.xml.StyleAttribute; 040import java.awt.*; 041import java.awt.geom.*; 042import java.util.*; 043 044import com.kitfox.svg.pathcmd.*; 045import com.kitfox.svg.*; 046import com.kitfox.svg.xml.*; 047 048/** 049 * A track holds the animation events for a single parameter of a single SVG 050 * element. It also contains the default value for the element, should the 051 * user want to see the 'unanimated' value. 052 * 053 * @author Mark McKay 054 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 055 */ 056public class TrackPath extends TrackBase 057{ 058 059 public TrackPath(AnimationElement ele) throws SVGElementException 060 { 061 super(ele.getParent(), ele); 062 } 063 064 public boolean getValue(StyleAttribute attrib, double curTime) 065 { 066 GeneralPath path = getValue(curTime); 067 if (path == null) return false; 068 069 attrib.setStringValue(PathUtil.buildPathString(path)); 070 return true; 071 } 072 073 public GeneralPath getValue(double curTime) 074 { 075 GeneralPath retVal = null; 076 AnimationTimeEval state = new AnimationTimeEval(); 077 078 for (Iterator it = animEvents.iterator(); it.hasNext();) 079 { 080 AnimateBase ele = (AnimateBase)it.next(); 081 Animate eleAnim = (Animate)ele; 082 ele.evalParametric(state, curTime); 083 084 //Reject value if it is in the invalid state 085 if (Double.isNaN(state.interp)) continue; 086 087 if (retVal == null) 088 { 089 retVal = eleAnim.evalPath(state.interp); 090 continue; 091 } 092 093 GeneralPath curPath = eleAnim.evalPath(state.interp); 094 switch (ele.getAdditiveType()) 095 { 096 case AnimationElement.AD_REPLACE: 097 retVal = curPath; 098 break; 099 case AnimationElement.AD_SUM: 100 throw new RuntimeException("Not implemented"); 101// retVal = new Color(curCol.getRed() + retVal.getRed(), curCol.getGreen() + retVal.getGreen(), curCol.getBlue() + retVal.getBlue()); 102// break; 103 default: 104 throw new RuntimeException(); 105 } 106 } 107 108 return retVal; 109 } 110}