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 August 15, 2004, 11:34 PM
035 */
036
037package com.kitfox.svg.animation;
038
039import com.kitfox.svg.xml.StyleAttribute;
040import java.util.*;
041
042import com.kitfox.svg.*;
043
044/**
045 * A track holds the animation events for a single parameter of a single SVG
046 * element.  It also contains the default value for the element, should the
047 * user want to see the 'unanimated' value.
048 *
049 * @author Mark McKay
050 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
051 */
052public class TrackDouble extends TrackBase
053{
054    public TrackDouble(AnimationElement ele) throws SVGElementException
055    {
056        super(ele.getParent(), ele);
057    }
058
059    @Override
060    public boolean getValue(StyleAttribute attrib, double curTime)
061    {
062        double val = getValue(curTime);
063        if (Double.isNaN(val)) return false;
064
065        attrib.setStringValue("" + val);
066        return true;
067    }
068
069    public double getValue(double curTime)
070    {
071        double retVal = Double.NaN;
072        
073        StyleAttribute attr = null;
074        switch (attribType)
075        {
076            case AnimationElement.AT_CSS:
077                attr = parent.getStyleAbsolute(attribName);
078                retVal = attr.getDoubleValue();
079                break;
080            case AnimationElement.AT_XML:
081                attr = parent.getPresAbsolute(attribName);
082                retVal = attr.getDoubleValue();
083                break;
084            case AnimationElement.AT_AUTO:
085                attr = parent.getStyleAbsolute(attribName);
086                if (attr == null) attr = parent.getPresAbsolute(attribName);
087                retVal = attr.getDoubleValue();
088                break;
089        }
090        
091        
092        
093        AnimationTimeEval state = new AnimationTimeEval();
094//        boolean pastEnd = true;
095
096        for (AnimationElement animationElement : animEvents) {
097            Animate ele = (Animate)animationElement;
098            ele.evalParametric(state, curTime);
099
100            //Go to next element if this one does not affect processing
101            if (Double.isNaN(state.interp)) continue;
102
103            switch (ele.getAdditiveType())
104            {
105                case AnimationElement.AD_SUM:
106                    retVal += ele.eval(state.interp);
107                    break;
108                case AnimationElement.AD_REPLACE:
109                    retVal = ele.eval(state.interp);
110                    break;
111            }
112            
113            //Evalutae accumulation if applicable
114            if (state.rep > 0)
115            {
116                switch (ele.getAccumulateType())
117                {
118                    case AnimationElement.AC_SUM:
119                        retVal += ele.repeatSkipSize(state.rep);
120                        break;
121                }
122                
123            }
124        }
125
126        return retVal;
127    }
128}