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/*
* SVG Salamander
* Copyright (c) 2004, Mark McKay
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on August 15, 2004, 2:51 AM
*/
package com.kitfox.svg.animation;
import com.kitfox.svg.SVGElement;
import com.kitfox.svg.SVGException;
import com.kitfox.svg.SVGLoaderHelper;
import com.kitfox.svg.animation.parser.AnimTimeParser;
import com.kitfox.svg.xml.ColorTable;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.Color;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class AnimateColor extends AnimateBase implements AnimateColorIface
{
protected Color fromValue;
protected Color toValue;
/** Creates a new instance of Animate */
public AnimateColor()
{
}
public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent) throws SAXException
{
//Load style string
super.loaderStartElement(helper, attrs, parent);
String strn = attrs.getValue("from");
fromValue = ColorTable.parseColor(strn);
strn = attrs.getValue("to");
toValue = ColorTable.parseColor(strn);
}
/**
* Evaluates this animation element for the passed interpolation time. Interp
* must be on [0..1].
*/
public Color evalColor(double interp)
{
int r1 = fromValue.getRed();
int g1 = fromValue.getGreen();
int b1 = fromValue.getBlue();
int r2 = toValue.getRed();
int g2 = toValue.getGreen();
int b2 = toValue.getBlue();
double invInterp = 1.0 - interp;
return new Color((int)(r1 * invInterp + r2 * interp),
(int)(g1 * invInterp + g2 * interp),
(int)(b1 * invInterp + b2 * interp));
}
protected void rebuild(AnimTimeParser animTimeParser) throws SVGException
{
super.rebuild(animTimeParser);
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("from")))
{
String strn = sty.getStringValue();
fromValue = ColorTable.parseColor(strn);
}
if (getPres(sty.setName("to")))
{
String strn = sty.getStringValue();
toValue = ColorTable.parseColor(strn);
}
}
}
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