1 files changed, 117 insertions, 0 deletions
diff --git a/src/main/java/com/kitfox/svg/TransformableElement.java b/src/main/java/com/kitfox/svg/TransformableElement.java
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+++ b/src/main/java/com/kitfox/svg/TransformableElement.java
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+/*
+ * BoundedElement.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 January 26, 2004, 9:00 AM
+ */
+
+package com.kitfox.svg;
+
+import com.kitfox.svg.xml.StyleAttribute;
+import com.kitfox.svg.xml.*;
+import org.xml.sax.*;
+
+import java.awt.geom.*;
+import java.awt.*;
+
+/**
+ * Maintains bounding box for this element
+ *
+ * @author Mark McKay
+ * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
+ */
+public class TransformableElement extends SVGElement 
+{
+
+    AffineTransform xform = null;
+//    AffineTransform invXform = null;
+
+    /** Creates a new instance of BoundedElement */
+    public TransformableElement() {
+    }
+
+    public TransformableElement(String id, SVGElement parent)
+    {
+        super(id, parent);
+    }
+/*
+    public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
+    {
+		//Load style string
+        super.loaderStartElement(helper, attrs, parent);
+
+        String transform = attrs.getValue("transform");
+        if (transform != null)
+        {
+            xform = parseTransform(transform);
+        }
+    }
+*/
+    
+    protected void build() throws SVGException
+    {
+        super.build();
+        
+        StyleAttribute sty = new StyleAttribute();
+        
+        if (getPres(sty.setName("transform")))
+        {
+            xform = parseTransform(sty.getStringValue());
+        }
+    }
+    
+    protected Shape shapeToParent(Shape shape)
+    {
+        if (xform == null) return shape;
+        return xform.createTransformedShape(shape);
+    }
+
+    protected Rectangle2D boundsToParent(Rectangle2D rect)
+    {
+        if (xform == null) return rect;
+        return xform.createTransformedShape(rect).getBounds2D();
+    }
+
+    /**
+     * Updates all attributes in this diagram associated with a time event.
+     * Ie, all attributes with track information.
+     * @return - true if this node has changed state as a result of the time
+     * update
+     */
+    public boolean updateTime(double curTime) throws SVGException
+    {
+        StyleAttribute sty = new StyleAttribute();
+        
+        if (getPres(sty.setName("transform")))
+        {
+            AffineTransform newXform = parseTransform(sty.getStringValue());
+            if (!newXform.equals(xform))
+            {
+                xform = newXform;
+                return true;
+            }
+        }
+        
+        return false;
+    }
+}