--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderSVGResourceMasker.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) Research In Motion Limited 2009-2010. 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 RenderSVGResourceMasker_h
+#define RenderSVGResourceMasker_h
+
+#if ENABLE(SVG)
+#include "FloatRect.h"
+#include "GraphicsContext.h"
+#include "ImageBuffer.h"
+#include "IntSize.h"
+#include "RenderSVGResourceContainer.h"
+#include "SVGMaskElement.h"
+#include "SVGUnitTypes.h"
+
+#include <wtf/HashMap.h>
+#include <wtf/OwnPtr.h>
+
+namespace WebCore {
+
+struct MaskerData {
+    MaskerData()
+        : emptyMask(false)
+    {
+    }
+
+    OwnPtr<ImageBuffer> maskImage;
+    FloatRect maskRect;
+    bool emptyMask;
+};
+
+class RenderSVGResourceMasker : public RenderSVGResourceContainer {
+public:
+    RenderSVGResourceMasker(SVGMaskElement*);
+    virtual ~RenderSVGResourceMasker();
+
+    virtual const char* renderName() const { return "RenderSVGResourceMasker"; }
+
+    virtual void invalidateClients();
+    virtual void invalidateClient(RenderObject*);
+
+    virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode);
+    virtual FloatRect resourceBoundingBox(RenderObject*);
+
+    SVGUnitTypes::SVGUnitType maskUnits() const { return toUnitType(static_cast<SVGMaskElement*>(node())->maskUnits()); }
+    SVGUnitTypes::SVGUnitType maskContentUnits() const { return toUnitType(static_cast<SVGMaskElement*>(node())->maskContentUnits()); }
+
+    virtual RenderSVGResourceType resourceType() const { return s_resourceType; }
+    static RenderSVGResourceType s_resourceType;
+
+private:
+    void createMaskImage(MaskerData*, const SVGMaskElement*, RenderObject*);
+    void calculateMaskContentRepaintRect();
+
+    virtual bool childElementReferencesResource(const SVGRenderStyle*, const String&) const;
+
+    FloatRect m_maskBoundaries;
+    HashMap<RenderObject*, MaskerData*> m_masker;
+};
+
+}
+
+#endif
+#endif