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/*
* TrackManager.java
*
* The Salamander Project - 2D and 3D graphics libraries in Java
* Copyright (C) 2004 Mark McKay
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on September 21, 2004, 11:34 PM
*/
package com.kitfox.svg.animation;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.geom.*;
import java.util.*;
import com.kitfox.svg.*;
import com.kitfox.svg.xml.*;
/**
* 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>
*/
public class TrackMotion extends TrackBase
{
public TrackMotion(AnimationElement ele) throws SVGElementException
{
//The motion element implies a CSS attribute of transform
// super(ele.getParent(), "transform", AnimationElement.AT_CSS);
super(ele.getParent(), ele);
}
public boolean getValue(StyleAttribute attrib, double curTime) throws SVGException
{
AffineTransform retVal = new AffineTransform();
retVal = getValue(retVal, curTime);
// AffineTransform val = getValue(curTime);
// if (val == null) return false;
double[] mat = new double[6];
retVal.getMatrix(mat);
attrib.setStringValue("matrix(" + mat[0] + " " + mat[1] + " " + mat[2] + " " + mat[3] + " " + mat[4] + " " + mat[5] + ")");
return true;
}
public AffineTransform getValue(AffineTransform retVal, double curTime) throws SVGException
{
//Init transform with default state
StyleAttribute attr = null;
switch (attribType)
{
case AnimationElement.AT_CSS:
attr = parent.getStyleAbsolute(attribName);
retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue()));
break;
case AnimationElement.AT_XML:
attr = parent.getPresAbsolute(attribName);
retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue()));
break;
case AnimationElement.AT_AUTO:
attr = parent.getStyleAbsolute(attribName);
if (attr == null) attr = parent.getPresAbsolute(attribName);
retVal.setTransform(SVGElement.parseSingleTransform(attr.getStringValue()));
break;
}
//Update transform with time based information
AnimationTimeEval state = new AnimationTimeEval();
AffineTransform xform = new AffineTransform();
// boolean pastEnd = true;
for (Iterator it = animEvents.iterator(); it.hasNext();)
{
AnimateMotion ele = (AnimateMotion)it.next();
ele.evalParametric(state, curTime);
//Go to next element if this one does not affect processing
if (Double.isNaN(state.interp)) continue;
switch (ele.getAdditiveType())
{
case AnimationElement.AD_SUM:
retVal.concatenate(ele.eval(xform, state.interp));
break;
case AnimationElement.AD_REPLACE:
retVal.setTransform(ele.eval(xform, state.interp));
break;
}
//Evaluate accumulation if applicable
/*
if (state.rep > 0)
{
switch (ele.getAccumulateType())
{
case AnimationElement.AC_SUM:
retVal += ele.repeatSkipSize(state.rep);
break;
}
}
*/
}
return retVal;
}
}
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