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/*
* Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
* Copyright (C) 2023 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include "ImageBuffer.h"
#include "LegacyRenderSVGResourceContainer.h"
#include "SVGUnitTypes.h"
#include <wtf/EnumeratedArray.h>
#include <wtf/HashMap.h>
namespace WebCore {
class GraphicsContext;
class SVGMaskElement;
struct MaskerData {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
RefPtr<ImageBuffer> maskImage;
};
class LegacyRenderSVGResourceMasker final : public LegacyRenderSVGResourceContainer {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(LegacyRenderSVGResourceMasker);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(LegacyRenderSVGResourceMasker);
public:
LegacyRenderSVGResourceMasker(SVGMaskElement&, RenderStyle&&);
virtual ~LegacyRenderSVGResourceMasker();
inline SVGMaskElement& maskElement() const;
inline Ref<SVGMaskElement> protectedMaskElement() const;
void removeAllClientsFromCacheIfNeeded(bool markForInvalidation, SingleThreadWeakHashSet<RenderObject>* visitedRenderers) override;
void removeClientFromCache(RenderElement&, bool markForInvalidation = true) override;
OptionSet<ApplyResult> applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) override;
bool drawContentIntoContext(GraphicsContext&, const FloatRect& objectBoundingBox);
bool drawContentIntoContext(GraphicsContext&, const FloatRect& destinationRect, const FloatRect& sourceRect, ImagePaintingOptions);
FloatRect resourceBoundingBox(const RenderObject&, RepaintRectCalculation) override;
inline SVGUnitTypes::SVGUnitType maskUnits() const;
inline SVGUnitTypes::SVGUnitType maskContentUnits() const;
RenderSVGResourceType resourceType() const override { return MaskerResourceType; }
private:
void element() const = delete;
ASCIILiteral renderName() const override { return "RenderSVGResourceMasker"_s; }
bool drawContentIntoMaskImage(MaskerData*, const DestinationColorSpace&, RenderObject*);
void calculateMaskContentRepaintRect(RepaintRectCalculation);
EnumeratedArray<RepaintRectCalculation, FloatRect, RepaintRectCalculation::Accurate> m_maskContentBoundaries;
UncheckedKeyHashMap<SingleThreadWeakRef<RenderObject>, std::unique_ptr<MaskerData>> m_masker;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_LEGACY_RENDER_SVG_RESOURCE(LegacyRenderSVGResourceMasker, MaskerResourceType)
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