1 /* 2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef RenderSVGResourceMasker_h 21 #define RenderSVGResourceMasker_h 22 23 #if ENABLE(SVG) 24 #include "FloatRect.h" 25 #include "GraphicsContext.h" 26 #include "ImageBuffer.h" 27 #include "IntSize.h" 28 #include "RenderSVGResourceContainer.h" 29 #include "SVGMaskElement.h" 30 #include "SVGUnitTypes.h" 31 32 #include <wtf/HashMap.h> 33 #include <wtf/OwnPtr.h> 34 35 namespace WebCore { 36 37 struct MaskerData { 38 OwnPtr<ImageBuffer> maskImage; 39 }; 40 41 class RenderSVGResourceMasker : public RenderSVGResourceContainer { 42 public: 43 RenderSVGResourceMasker(SVGMaskElement*); 44 virtual ~RenderSVGResourceMasker(); 45 46 virtual const char* renderName() const { return "RenderSVGResourceMasker"; } 47 48 virtual void removeAllClientsFromCache(bool markForInvalidation = true); 49 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true); 50 virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode); 51 virtual FloatRect resourceBoundingBox(RenderObject*); 52 53 SVGUnitTypes::SVGUnitType maskUnits() const { return toUnitType(static_cast<SVGMaskElement*>(node())->maskUnits()); } 54 SVGUnitTypes::SVGUnitType maskContentUnits() const { return toUnitType(static_cast<SVGMaskElement*>(node())->maskContentUnits()); } 55 56 virtual RenderSVGResourceType resourceType() const { return s_resourceType; } 57 static RenderSVGResourceType s_resourceType; 58 59 private: 60 void drawContentIntoMaskImage(MaskerData*, const SVGMaskElement*, RenderObject*); 61 void calculateMaskContentRepaintRect(); 62 63 FloatRect m_maskContentBoundaries; 64 HashMap<RenderObject*, MaskerData*> m_masker; 65 }; 66 67 } 68 69 #endif 70 #endif 71
