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.geom.*; 041import java.util.*; 042 043import com.kitfox.svg.*; 044 045/** 046 * A track holds the animation events for a single parameter of a single SVG 047 * element. It also contains the default value for the element, should the 048 * user want to see the 'unanimated' value. 049 * 050 * @author Mark McKay 051 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 052 */ 053public class TrackMotion extends TrackBase 054{ 055 public TrackMotion(AnimationElement ele) throws SVGElementException 056 { 057 //The motion element implies a CSS attribute of transform 058// super(ele.getParent(), "transform", AnimationElement.AT_CSS); 059 super(ele.getParent(), ele); 060 } 061 062 @Override 063 public boolean getValue(StyleAttribute attrib, double curTime) throws SVGException 064 { 065 AffineTransform retVal = new AffineTransform(); 066 retVal = getValue(retVal, curTime); 067// AffineTransform val = getValue(curTime); 068// if (val == null) return false; 069 070 double[] mat = new double[6]; 071 retVal.getMatrix(mat); 072 attrib.setStringValue("matrix(" + mat[0] + " " + mat[1] + " " + mat[2] + " " + mat[3] + " " + mat[4] + " " + mat[5] + ")"); 073 return true; 074 } 075 076 public AffineTransform getValue(AffineTransform retVal, double curTime) throws SVGException 077 { 078 //Init transform with default state 079 StyleAttribute attr = null; 080 switch (attribType) 081 { 082 case AnimationElement.AT_CSS: 083 attr = parent.getStyleAbsolute(attribName); 084 retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue())); 085 break; 086 case AnimationElement.AT_XML: 087 attr = parent.getPresAbsolute(attribName); 088 retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue())); 089 break; 090 case AnimationElement.AT_AUTO: 091 attr = parent.getStyleAbsolute(attribName); 092 if (attr == null) attr = parent.getPresAbsolute(attribName); 093 retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue())); 094 break; 095 } 096 097 098 //Update transform with time based information 099 AnimationTimeEval state = new AnimationTimeEval(); 100 AffineTransform xform = new AffineTransform(); 101// boolean pastEnd = true; 102 103 for (AnimationElement animationElement : animEvents) { 104 AnimateMotion ele = (AnimateMotion)animationElement; 105 ele.evalParametric(state, curTime); 106 107 //Go to next element if this one does not affect processing 108 if (Double.isNaN(state.interp)) continue; 109 110 switch (ele.getAdditiveType()) 111 { 112 case AnimationElement.AD_SUM: 113 retVal.concatenate(ele.eval(xform, state.interp)); 114 break; 115 case AnimationElement.AD_REPLACE: 116 retVal.setTransform(ele.eval(xform, state.interp)); 117 break; 118 } 119 120 //Evaluate accumulation if applicable 121/* 122 if (state.rep > 0) 123 { 124 switch (ele.getAccumulateType()) 125 { 126 case AnimationElement.AC_SUM: 127 retVal += ele.repeatSkipSize(state.rep); 128 break; 129 } 130 131 } 132*/ 133 } 134 135 return retVal; 136 } 137}