1/* 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2008 Eric Seidel <eric@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#include "core/rendering/svg/RenderSVGResourceContainer.h" 26#include "core/svg/SVGGradientElement.h" 27#include "platform/geometry/FloatRect.h" 28#include "platform/graphics/Gradient.h" 29#include "platform/graphics/ImageBuffer.h" 30#include "platform/transforms/AffineTransform.h" 31#include "wtf/HashMap.h" 32 33namespace blink { 34 35struct GradientData { 36 WTF_MAKE_FAST_ALLOCATED; 37public: 38 RefPtr<Gradient> gradient; 39 AffineTransform userspaceTransform; 40}; 41 42class GraphicsContext; 43 44class RenderSVGResourceGradient : public RenderSVGResourceContainer { 45public: 46 explicit RenderSVGResourceGradient(SVGGradientElement*); 47 48 virtual void removeAllClientsFromCache(bool markForInvalidation = true) OVERRIDE FINAL; 49 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) OVERRIDE FINAL; 50 51 virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*&, unsigned short resourceMode) OVERRIDE FINAL; 52 virtual void postApplyResource(RenderObject*, GraphicsContext*&) OVERRIDE FINAL; 53 54protected: 55 void addStops(GradientData*, const Vector<Gradient::ColorStop>&) const; 56 57 virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0; 58 virtual void calculateGradientTransform(AffineTransform&) = 0; 59 virtual bool collectGradientAttributes(SVGGradientElement*) = 0; 60 virtual void buildGradient(GradientData*) const = 0; 61 62 GradientSpreadMethod platformSpreadMethodFromSVGType(SVGSpreadMethodType) const; 63 64private: 65 bool m_shouldCollectGradientAttributes : 1; 66 HashMap<RenderObject*, OwnPtr<GradientData> > m_gradientMap; 67}; 68 69} 70 71#endif 72