From ddd29c1524f3f77691be48f9778de7cabc26f52d Mon Sep 17 00:00:00 2001
From: kitfox
Date: Thu, 6 Feb 2014 08:52:58 +0000
Subject: Fixing SVGSALAMANDER-30.  Animation elements with a 'to' but not a
 'from' will now get their from value from their parent element.

git-svn-id: https://svn.java.net/svn/svgsalamander~svn/trunk/svg-core@164 7dc7fa77-23fb-e6ad-8e2e-c86bd48ed22b
---
 src/main/java/com/kitfox/svg/SVGElement.java       | 30 +++++++++++++++-------
 src/main/java/com/kitfox/svg/SVGUniverse.java      |  2 --
 .../java/com/kitfox/svg/animation/Animate.java     | 18 +++++++++++++
 3 files changed, 39 insertions(+), 11 deletions(-)

diff --git a/src/main/java/com/kitfox/svg/SVGElement.java b/src/main/java/com/kitfox/svg/SVGElement.java
index 269a717..62c7ef3 100644
--- a/src/main/java/com/kitfox/svg/SVGElement.java
+++ b/src/main/java/com/kitfox/svg/SVGElement.java
@@ -579,6 +579,11 @@ abstract public class SVGElement implements Serializable
         styAttr.setStringValue(value);
     }
 
+    public boolean getStyle(StyleAttribute attrib, boolean recursive) throws SVGException
+    {
+        return getStyle(attrib, recursive, true);
+    }
+    
     /**
      * Copies the current style into the passed style attribute. Checks for
      * inline styles first, then internal and extranal style sheets, and finally
@@ -590,7 +595,8 @@ abstract public class SVGElement implements Serializable
      * style attribute, checks attributes of parents back to root until one
      * found.
      */
-    public boolean getStyle(StyleAttribute attrib, boolean recursive) throws SVGException
+    public boolean getStyle(StyleAttribute attrib, boolean recursive, boolean evalAnimation)
+            throws SVGException
     {
         String styName = attrib.getName();
 
@@ -600,11 +606,14 @@ abstract public class SVGElement implements Serializable
         attrib.setStringValue(styAttr == null ? "" : styAttr.getStringValue());
 
         //Evalutate coresponding track, if one exists
-        TrackBase track = trackManager.getTrack(styName, AnimationElement.AT_CSS);
-        if (track != null)
+        if (evalAnimation)
         {
-            track.getValue(attrib, diagram.getUniverse().getCurTime());
-            return true;
+            TrackBase track = trackManager.getTrack(styName, AnimationElement.AT_CSS);
+            if (track != null)
+            {
+                track.getValue(attrib, diagram.getUniverse().getCurTime());
+                return true;
+            }
         }
 
         //Return if we've found a non animated style
@@ -620,11 +629,14 @@ abstract public class SVGElement implements Serializable
         attrib.setStringValue(presAttr == null ? "" : presAttr.getStringValue());
 
         //Evalutate coresponding track, if one exists
-        track = trackManager.getTrack(styName, AnimationElement.AT_XML);
-        if (track != null)
+        if (evalAnimation)
         {
-            track.getValue(attrib, diagram.getUniverse().getCurTime());
-            return true;
+            TrackBase track = trackManager.getTrack(styName, AnimationElement.AT_XML);
+            if (track != null)
+            {
+                track.getValue(attrib, diagram.getUniverse().getCurTime());
+                return true;
+            }
         }
 
         //Return if we've found a presentation attribute instead
diff --git a/src/main/java/com/kitfox/svg/SVGUniverse.java b/src/main/java/com/kitfox/svg/SVGUniverse.java
index a8e5f76..b6859b9 100644
--- a/src/main/java/com/kitfox/svg/SVGUniverse.java
+++ b/src/main/java/com/kitfox/svg/SVGUniverse.java
@@ -54,8 +54,6 @@ import java.net.MalformedURLException;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
-import java.net.URLConnection;
-import java.net.URLStreamHandler;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.logging.Level;
diff --git a/src/main/java/com/kitfox/svg/animation/Animate.java b/src/main/java/com/kitfox/svg/animation/Animate.java
index 3ef5287..0ac491e 100644
--- a/src/main/java/com/kitfox/svg/animation/Animate.java
+++ b/src/main/java/com/kitfox/svg/animation/Animate.java
@@ -36,6 +36,7 @@
 
 package com.kitfox.svg.animation;
 
+import com.kitfox.svg.SVGConst;
 import com.kitfox.svg.SVGElement;
 import com.kitfox.svg.SVGException;
 import com.kitfox.svg.SVGLoaderHelper;
@@ -47,6 +48,8 @@ import java.awt.Color;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.GeneralPath;
 import java.awt.geom.PathIterator;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 
@@ -197,6 +200,21 @@ public class Animate extends AnimateBase implements AnimateColorIface
         {
             return byValue * interp;
         }
+        else if (toExists)
+        {
+            StyleAttribute style = new StyleAttribute(getAttribName());
+            try
+            {
+                getParent().getStyle(style, true, false);
+            }
+            catch (SVGException ex)
+            {
+                Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, 
+                    "Could not get from value", ex);
+            }
+            double from = style.getDoubleValue();
+            return toValue * interp + from * (1.0 - interp);
+        }
   
         //Should not reach this line
         throw new RuntimeException("Animate tag could not be evalutated - insufficient arguements");
-- 
cgit v1.2.3-55-g7522