1 /* 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2008 Eric Seidel <eric (at) webkit.org> 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef RenderSVGResourceGradient_h 23 #define RenderSVGResourceGradient_h 24 25 #if ENABLE(SVG) 26 #include "AffineTransform.h" 27 #include "FloatRect.h" 28 #include "Gradient.h" 29 #include "ImageBuffer.h" 30 #include "RenderSVGResourceContainer.h" 31 #include "SVGGradientElement.h" 32 33 #include <wtf/HashMap.h> 34 35 namespace WebCore { 36 37 struct GradientData { 38 RefPtr<Gradient> gradient; 39 AffineTransform userspaceTransform; 40 }; 41 42 class GraphicsContext; 43 44 class RenderSVGResourceGradient : public RenderSVGResourceContainer { 45 public: 46 RenderSVGResourceGradient(SVGGradientElement*); 47 virtual ~RenderSVGResourceGradient(); 48 49 virtual void removeAllClientsFromCache(bool markForInvalidation = true); 50 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true); 51 52 virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode); 53 virtual void postApplyResource(RenderObject*, GraphicsContext*&, unsigned short resourceMode, const Path*); 54 virtual FloatRect resourceBoundingBox(RenderObject*) { return FloatRect(); } 55 56 protected: 57 void addStops(GradientData*, const Vector<Gradient::ColorStop>&) const; 58 59 virtual bool boundingBoxMode() const = 0; 60 virtual void calculateGradientTransform(AffineTransform&) = 0; 61 virtual void collectGradientAttributes(SVGGradientElement*) = 0; 62 virtual void buildGradient(GradientData*, SVGGradientElement*) const = 0; 63 64 private: 65 bool m_shouldCollectGradientAttributes : 1; 66 HashMap<RenderObject*, GradientData*> m_gradient; 67 68 #if USE(CG) 69 GraphicsContext* m_savedContext; 70 OwnPtr<ImageBuffer> m_imageBuffer; 71 #endif 72 }; 73 74 } 75 76 #endif 77 #endif 78
