1 files changed, 88 insertions, 0 deletions
diff --git a/WebCore/rendering/RenderSVGResourceMarker.h b/WebCore/rendering/RenderSVGResourceMarker.h
new file mode 100644
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+++ b/WebCore/rendering/RenderSVGResourceMarker.h
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+/*
+ * 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 RenderSVGResourceMarker_h
+#define RenderSVGResourceMarker_h
+
+#if ENABLE(SVG)
+#include "FloatRect.h"
+#include "RenderObject.h"
+#include "RenderSVGResource.h"
+#include "SVGMarkerElement.h"
+#include "SVGStyledElement.h"
+
+#include <wtf/HashSet.h>
+
+namespace WebCore {
+
+class AffineTransform;
+
+class RenderSVGResourceMarker : public RenderSVGResource {
+
+public:
+    RenderSVGResourceMarker(SVGStyledElement*);
+    virtual ~RenderSVGResourceMarker();
+
+    virtual const char* renderName() const { return "RenderSVGResourceMarker"; }
+
+    void addClient(const RenderObject*);
+    virtual void invalidateClients();
+    virtual void invalidateClient(RenderObject*);
+
+    void draw(RenderObject::PaintInfo&, const AffineTransform&);
+
+    // Calculates marker boundaries, mapped to the target element's coordinate space
+    FloatRect markerBoundaries(const AffineTransform& markerTransformation) const;
+
+    virtual void applyViewportClip(PaintInfo&);
+    virtual void layout();
+    virtual void calcViewport();
+
+    virtual const AffineTransform& localToParentTransform() const;
+    AffineTransform markerTransformation(const FloatPoint& origin, float angle, float strokeWidth) const;
+
+    virtual bool applyResource(RenderObject*, GraphicsContext*&) { return false; }
+    virtual FloatRect resourceBoundingBox(const FloatRect&) const { return FloatRect(); }
+
+    FloatPoint referencePoint() const;
+    float angle() const;
+    SVGMarkerElement::SVGMarkerUnitsType markerUnits() const { return static_cast<SVGMarkerElement::SVGMarkerUnitsType>(static_cast<SVGMarkerElement*>(node())->markerUnits()); }
+
+    virtual RenderSVGResourceType resourceType() const { return s_resourceType; }
+    static RenderSVGResourceType s_resourceType;
+
+private:
+    // Generates a transformation matrix usable to render marker content. Handles scaling the marker content
+    // acording to SVGs markerUnits="strokeWidth" concept, when a strokeWidth value != -1 is passed in.
+    AffineTransform markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth = -1) const;
+
+    AffineTransform viewportTransform() const;
+
+    // Save objects using this marker for invalidation.
+    HashSet<const RenderObject*> m_marker;
+
+    mutable AffineTransform m_localToParentTransform;
+    FloatRect m_viewport;
+};
+
+}
+#endif
+
+#endif