1 /* 2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> 4 * Copyright (C) 2005 Eric Seidel <eric@webkit.org> 5 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> 6 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24 #ifndef RenderSVGResourceFilter_h 25 #define RenderSVGResourceFilter_h 26 27 #if ENABLE(SVG) && ENABLE(FILTERS) 28 #include "FloatRect.h" 29 #include "ImageBuffer.h" 30 #include "RenderSVGResourceContainer.h" 31 #include "SVGFilter.h" 32 #include "SVGFilterBuilder.h" 33 #include "SVGFilterElement.h" 34 #include "SVGUnitTypes.h" 35 36 #include <wtf/OwnPtr.h> 37 #include <wtf/PassOwnPtr.h> 38 #include <wtf/RefPtr.h> 39 40 namespace WebCore { 41 42 struct FilterData { FilterDataFilterData43 FilterData() 44 : savedContext(0) 45 , builded(false) 46 , markedForRemoval(false) 47 { 48 } 49 50 RefPtr<SVGFilter> filter; 51 RefPtr<SVGFilterBuilder> builder; 52 OwnPtr<ImageBuffer> sourceGraphicBuffer; 53 GraphicsContext* savedContext; 54 AffineTransform shearFreeAbsoluteTransform; 55 FloatRect boundaries; 56 FloatSize scale; 57 bool builded : 1; 58 bool markedForRemoval : 1; 59 }; 60 61 class GraphicsContext; 62 63 class RenderSVGResourceFilter : public RenderSVGResourceContainer { 64 public: 65 RenderSVGResourceFilter(SVGFilterElement*); 66 virtual ~RenderSVGResourceFilter(); 67 renderName()68 virtual const char* renderName() const { return "RenderSVGResourceFilter"; } isSVGResourceFilter()69 virtual bool isSVGResourceFilter() const { return true; } 70 71 virtual void removeAllClientsFromCache(bool markForInvalidation = true); 72 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true); 73 74 virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode); 75 virtual void postApplyResource(RenderObject*, GraphicsContext*&, unsigned short resourceMode, const Path*); 76 77 virtual FloatRect resourceBoundingBox(RenderObject*); 78 79 PassRefPtr<SVGFilterBuilder> buildPrimitives(Filter*); 80 filterUnits()81 SVGUnitTypes::SVGUnitType filterUnits() const { return toUnitType(static_cast<SVGFilterElement*>(node())->filterUnits()); } primitiveUnits()82 SVGUnitTypes::SVGUnitType primitiveUnits() const { return toUnitType(static_cast<SVGFilterElement*>(node())->primitiveUnits()); } 83 84 void primitiveAttributeChanged(RenderObject*, const QualifiedName&); 85 resourceType()86 virtual RenderSVGResourceType resourceType() const { return s_resourceType; } 87 static RenderSVGResourceType s_resourceType; 88 89 private: 90 bool fitsInMaximumImageSize(const FloatSize&, FloatSize&); 91 92 HashMap<RenderObject*, FilterData*> m_filter; 93 }; 94 95 } 96 97 #endif 98 #endif 99