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 #include "core/rendering/svg/RenderSVGResourceContainer.h" 24 #include "core/svg/SVGMaskElement.h" 25 #include "core/svg/SVGUnitTypes.h" 26 #include "platform/geometry/FloatRect.h" 27 #include "platform/geometry/IntSize.h" 28 #include "platform/graphics/ImageBuffer.h" 29 30 #include "wtf/HashMap.h" 31 #include "wtf/OwnPtr.h" 32 33 namespace WebCore { 34 35 class DisplayList; 36 class GraphicsContext; 37 38 class RenderSVGResourceMasker FINAL : public RenderSVGResourceContainer { 39 public: 40 explicit RenderSVGResourceMasker(SVGMaskElement*); 41 virtual ~RenderSVGResourceMasker(); 42 43 virtual const char* renderName() const OVERRIDE { return "RenderSVGResourceMasker"; } 44 45 virtual void removeAllClientsFromCache(bool markForInvalidation = true) OVERRIDE; 46 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) OVERRIDE; 47 virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode) OVERRIDE; 48 virtual void postApplyResource(RenderObject*, GraphicsContext*&, unsigned short, const Path*, const RenderSVGShape*) OVERRIDE; 49 FloatRect resourceBoundingBox(const RenderObject*); 50 51 SVGUnitTypes::SVGUnitType maskUnits() const { return toSVGMaskElement(element())->maskUnits()->currentValue()->enumValue(); } 52 SVGUnitTypes::SVGUnitType maskContentUnits() const { return toSVGMaskElement(element())->maskContentUnits()->currentValue()->enumValue(); } 53 54 virtual RenderSVGResourceType resourceType() const OVERRIDE { return s_resourceType; } 55 static const RenderSVGResourceType s_resourceType; 56 57 private: 58 void calculateMaskContentRepaintRect(); 59 void drawMaskForRenderer(GraphicsContext*, const FloatRect& targetBoundingBox); 60 PassRefPtr<DisplayList> asDisplayList(GraphicsContext*, const AffineTransform&); 61 62 RefPtr<DisplayList> m_maskContentDisplayList; 63 FloatRect m_maskContentBoundaries; 64 }; 65 66 DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(RenderSVGResourceMasker, MaskerResourceType); 67 68 } 69 70 #endif 71
