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, 2:51 AM
035 */
036
037package com.kitfox.svg.animation;
038
039import com.kitfox.svg.SVGConst;
040import com.kitfox.svg.SVGElement;
041import com.kitfox.svg.SVGException;
042import com.kitfox.svg.SVGLoaderHelper;
043import com.kitfox.svg.animation.parser.AnimTimeParser;
044import com.kitfox.svg.animation.parser.ParseException;
045import com.kitfox.svg.xml.StyleAttribute;
046import java.io.StringReader;
047import java.util.logging.Level;
048import java.util.logging.Logger;
049import org.xml.sax.Attributes;
050import org.xml.sax.SAXException;
051
052/**
053 * @author Mark McKay
054 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
055 */
056abstract public class AnimateBase extends AnimationElement
057{
058    protected double repeatCount = Double.NaN;
059    protected TimeBase repeatDur;
060    
061    /** Creates a new instance of Animate */
062    public AnimateBase()
063    {
064    }
065    
066    public void evalParametric(AnimationTimeEval state, double curTime)
067    {
068        evalParametric(state, curTime, repeatCount, repeatDur == null ? Double.NaN : repeatDur.evalTime());
069    }
070    
071    public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent) throws SAXException
072    {
073                //Load style string
074        super.loaderStartElement(helper, attrs, parent);
075
076        String repeatDurTime = attrs.getValue("repeatDur");
077
078        try
079        {
080            if (repeatDurTime != null)
081            {
082                helper.animTimeParser.ReInit(new StringReader(repeatDurTime));
083                this.repeatDur = helper.animTimeParser.Expr();
084                this.repeatDur.setParentElement(this);
085            }
086        }
087        catch (Exception e)
088        {
089            throw new SAXException(e);
090        }
091        
092        String strn = attrs.getValue("repeatCount");
093        if (strn == null)
094        {
095            repeatCount = 1;
096        }
097        else if ("indefinite".equals(strn))
098        {
099            repeatCount = Double.POSITIVE_INFINITY;
100        }
101        else
102        {
103            try { repeatCount = Double.parseDouble(strn); } 
104            catch (Exception e) { repeatCount = Double.NaN; }
105        }
106    }
107
108    protected void rebuild(AnimTimeParser animTimeParser) throws SVGException
109    {
110        super.rebuild(animTimeParser);
111
112        StyleAttribute sty = new StyleAttribute();
113
114        if (getPres(sty.setName("repeatDur")))
115        {
116            String strn = sty.getStringValue();
117            if (strn != null)
118            {
119                animTimeParser.ReInit(new StringReader(strn));
120                try
121                {
122                    this.repeatDur = animTimeParser.Expr();
123                }
124                catch (ParseException ex)
125                {
126                    Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, 
127                        "Could not parse '" + strn + "'", ex);
128                }
129            }
130        }
131
132        if (getPres(sty.setName("repeatCount")))
133        {
134            String strn = sty.getStringValue();
135            if (strn == null)
136            {
137                repeatCount = 1;
138            }
139            else if ("indefinite".equals(strn))
140            {
141                repeatCount = Double.POSITIVE_INFINITY;
142            }
143            else
144            {
145                try { repeatCount = Double.parseDouble(strn); }
146                catch (Exception e) { repeatCount = Double.NaN; }
147            }
148        }
149    }
150}