| /* |
| * 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 RenderSVGResourceClipper_h |
| #define RenderSVGResourceClipper_h |
| |
| #if ENABLE(SVG) |
| #include "FloatRect.h" |
| #include "GraphicsContext.h" |
| #include "ImageBuffer.h" |
| #include "IntSize.h" |
| #include "Path.h" |
| #include "RenderSVGResourceContainer.h" |
| #include "SVGClipPathElement.h" |
| #include "SVGUnitTypes.h" |
| |
| #include <wtf/HashMap.h> |
| #include <wtf/OwnPtr.h> |
| |
| namespace WebCore { |
| |
| struct ClipperData { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| OwnPtr<ImageBuffer> clipMaskImage; |
| }; |
| |
| class RenderSVGResourceClipper : public RenderSVGResourceContainer { |
| public: |
| RenderSVGResourceClipper(SVGClipPathElement*); |
| virtual ~RenderSVGResourceClipper(); |
| |
| virtual const char* renderName() const { return "RenderSVGResourceClipper"; } |
| |
| virtual void removeAllClientsFromCache(bool markForInvalidation = true); |
| virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true); |
| |
| virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode); |
| virtual FloatRect resourceBoundingBox(RenderObject*); |
| |
| virtual RenderSVGResourceType resourceType() const { return ClipperResourceType; } |
| |
| bool hitTestClipContent(const FloatRect&, const FloatPoint&); |
| |
| SVGUnitTypes::SVGUnitType clipPathUnits() const { return toUnitType(static_cast<SVGClipPathElement*>(node())->clipPathUnits()); } |
| |
| static RenderSVGResourceType s_resourceType; |
| private: |
| // clipPath can be clipped too, but don't have a boundingBox or repaintRect. So we can't call |
| // applyResource directly and use the rects from the object, since they are empty for RenderSVGResources |
| bool applyClippingToContext(RenderObject*, const FloatRect&, const FloatRect&, GraphicsContext*); |
| bool pathOnlyClipping(GraphicsContext*, const FloatRect&); |
| bool drawContentIntoMaskImage(ClipperData*, const FloatRect& objectBoundingBox); |
| void calculateClipContentRepaintRect(); |
| |
| bool m_invalidationBlocked; |
| FloatRect m_clipBoundaries; |
| HashMap<RenderObject*, ClipperData*> m_clipper; |
| }; |
| |
| } |
| |
| #endif |
| #endif |