1 files changed, 95 insertions, 0 deletions
diff --git a/src/main/java/com/kitfox/svg/animation/TrackColor.java b/src/main/java/com/kitfox/svg/animation/TrackColor.java
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+++ b/src/main/java/com/kitfox/svg/animation/TrackColor.java
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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.*;
+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 TrackColor extends TrackBase
+{
+
+    public TrackColor(AnimationElement ele) throws SVGElementException
+    {
+        super(ele.getParent(), ele);
+    }
+
+    public boolean getValue(StyleAttribute attrib, double curTime)
+    {
+        Color col = getValue(curTime);
+        if (col == null) return false;
+
+        attrib.setStringValue("#" + Integer.toHexString(col.getRGB()));
+        return true;
+    }
+
+    public Color getValue(double curTime)
+    {
+        Color retVal = null;
+        AnimationTimeEval state = new AnimationTimeEval();
+
+        for (Iterator it = animEvents.iterator(); it.hasNext();)
+        {
+            AnimateBase ele = (AnimateBase)it.next();
+            AnimateColorIface eleColor = (AnimateColorIface)ele;
+            ele.evalParametric(state, curTime);
+
+            //Reject value if it is in the invalid state
+            if (Double.isNaN(state.interp)) continue;
+
+            if (retVal == null)
+            {
+                retVal = eleColor.evalColor(state.interp);
+                continue;
+            }
+            
+            Color curCol = eleColor.evalColor(state.interp);
+            switch (ele.getAdditiveType())
+            {
+                case AnimationElement.AD_REPLACE:
+                    retVal = curCol;
+                    break;
+                case AnimationElement.AD_SUM:
+                    retVal = new Color(curCol.getRed() + retVal.getRed(), curCol.getGreen() + retVal.getGreen(), curCol.getBlue() + retVal.getBlue());
+                    break;
+            }
+        }
+
+        return retVal;
+    }
+}