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.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 TrackColor extends TrackBase 054{ 055 056 public TrackColor(AnimationElement ele) throws SVGElementException 057 { 058 super(ele.getParent(), ele); 059 } 060 061 @Override 062 public boolean getValue(StyleAttribute attrib, double curTime) 063 { 064 Color col = getValue(curTime); 065 if (col == null) return false; 066 067 attrib.setStringValue("#" + Integer.toHexString(col.getRGB())); 068 return true; 069 } 070 071 public Color getValue(double curTime) 072 { 073 Color retVal = null; 074 AnimationTimeEval state = new AnimationTimeEval(); 075 076 for (AnimationElement animationElement : animEvents) { 077 AnimateBase ele = (AnimateBase)animationElement; 078 AnimateColorIface eleColor = (AnimateColorIface)ele; 079 ele.evalParametric(state, curTime); 080 081 //Reject value if it is in the invalid state 082 if (Double.isNaN(state.interp)) continue; 083 084 if (retVal == null) 085 { 086 retVal = eleColor.evalColor(state.interp); 087 continue; 088 } 089 090 Color curCol = eleColor.evalColor(state.interp); 091 switch (ele.getAdditiveType()) 092 { 093 case AnimationElement.AD_REPLACE: 094 retVal = curCol; 095 break; 096 case AnimationElement.AD_SUM: 097 retVal = new Color(curCol.getRed() + retVal.getRed(), curCol.getGreen() + retVal.getGreen(), curCol.getBlue() + retVal.getBlue()); 098 break; 099 } 100 } 101 102 return retVal; 103 } 104}