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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;
+ }
+}