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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, 11:34 PM
*/
package com.kitfox.svg.animation;
import java.util.*;
import com.kitfox.svg.xml.*;
import com.kitfox.svg.*;
/**
* A track holds the animation events for a single parameter of a single SVG
* element. It also contains the default value for the element, should the
* user want to see the 'unanimated' value.
*
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
abstract public class TrackBase
{
protected final String attribName;
protected final int attribType; //AnimationElement.AT_*
/** Element we're animating */
protected final SVGElement parent;
//It doesn't make sense to sort this, since some events will depend on
// other events - in many cases, there will be no meaningful sorted order.
final ArrayList animEvents = new ArrayList();
/** Creates a new instance of TrackManager */
// public TrackBase(SVGElement parent)
// {
// this(parent, "", AnimationElement.AT_AUTO);
// }
/**
* Creates a track that would be valid for the name and type of element
* passed in. Does not actually add this elemnt to the track.
*/
public TrackBase(SVGElement parent, AnimationElement ele) throws SVGElementException
{
this(parent, ele.getAttribName(), ele.getAttribType());
}
public TrackBase(SVGElement parent, String attribName, int attribType) throws SVGElementException
{
this.parent = parent;
this.attribName = attribName;
this.attribType = attribType;
//Make sure parent has an attribute we will write to
if (attribType == AnimationElement.AT_AUTO
&& !parent.hasAttribute(attribName, AnimationElement.AT_CSS)
&& !parent.hasAttribute(attribName, AnimationElement.AT_XML))
{
parent.addAttribute(attribName, AnimationElement.AT_CSS, "");
}
else if (!parent.hasAttribute(attribName, attribType))
{
parent.addAttribute(attribName, attribType, "");
}
}
public String getAttribName() { return attribName; }
public int getAttribType() { return attribType; }
public void addElement(AnimationElement ele)
{
animEvents.add(ele);
}
/**
* Returns a StyleAttribute representing the value of this track at the
* passed time. If this track does not apply, returns null.
* @return - True if successful, false if a value could not be obtained
*/
abstract public boolean getValue(StyleAttribute attrib, double curTime) throws SVGException;
}
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