75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
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* Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
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* Copyright (C) Research In Motion Limited 2010. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "ImageBuffer.h"
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#include "RenderSVGResourceContainer.h"
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#include "SVGGradientElement.h"
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#include <memory>
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#include <wtf/HashMap.h>
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namespace WebCore {
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class GraphicsContext;
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class RenderSVGResourceGradient : public RenderSVGResourceContainer {
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WTF_MAKE_ISO_ALLOCATED(RenderSVGResourceGradient);
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public:
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SVGGradientElement& gradientElement() const { return static_cast<SVGGradientElement&>(RenderSVGResourceContainer::element()); }
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void removeAllClientsFromCache(bool markForInvalidation = true) final;
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void removeClientFromCache(RenderElement&, bool markForInvalidation = true) final;
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bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) final;
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void postApplyResource(RenderElement&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>, const Path*, const RenderSVGShape*) final;
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FloatRect resourceBoundingBox(const RenderObject&) final { return FloatRect(); }
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protected:
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RenderSVGResourceGradient(SVGGradientElement&, RenderStyle&&);
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static void addStops(Gradient&, const Gradient::ColorStopVector&, const RenderStyle&);
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static GradientSpreadMethod platformSpreadMethodFromSVGType(SVGSpreadMethodType);
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private:
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void element() const = delete;
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virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0;
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virtual AffineTransform gradientTransform() const = 0;
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virtual bool collectGradientAttributes() = 0;
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virtual Ref<Gradient> buildGradient(const RenderStyle&) const = 0;
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struct GradientData {
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RefPtr<Gradient> gradient;
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AffineTransform userspaceTransform;
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};
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HashMap<RenderObject*, GradientData> m_gradientMap;
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#if USE(CG)
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GraphicsContext* m_savedContext { nullptr };
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RefPtr<ImageBuffer> m_imageBuffer;
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#endif
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bool m_shouldCollectGradientAttributes { true };
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};
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} // namespace WebCore
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