diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGLocatable.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGLocatable.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,66 @@
+/*
+    Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2007 Rob Buis <buis@kde.org>
+    Copyright (C) Research In Motion Limited 2010. All rights reserved.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef SVGLocatable_h
+#define SVGLocatable_h
+
+#if ENABLE(SVG)
+#include "AffineTransform.h"
+#include "ExceptionCode.h"
+
+namespace WebCore {
+
+class FloatRect;
+class SVGElement;
+
+class SVGLocatable {
+public:
+    SVGLocatable();
+    virtual ~SVGLocatable();
+
+    // 'SVGLocatable' functions
+    virtual SVGElement* nearestViewportElement() const = 0;
+    virtual SVGElement* farthestViewportElement() const = 0;
+
+    virtual FloatRect getBBox() const = 0;
+    virtual AffineTransform getCTM() const = 0;
+    virtual AffineTransform getScreenCTM() const = 0;
+    AffineTransform getTransformToElement(SVGElement*, ExceptionCode&) const;
+
+    static SVGElement* nearestViewportElement(const SVGElement*);
+    static SVGElement* farthestViewportElement(const SVGElement*);
+
+    enum CTMScope {
+        NearestViewportScope, // Used for getCTM()
+        ScreenScope // Used for getScreenCTM()
+    };
+
+protected:
+    virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const { return AffineTransform(); }
+
+    static FloatRect getBBox(const SVGElement*);
+    static AffineTransform computeCTM(const SVGElement*, CTMScope);
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(SVG)
+#endif // SVGLocatable_h