130 lines
4.4 KiB
C++
130 lines
4.4 KiB
C++
/*
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* Copyright (C) 2006-2021 Apple Inc. All rights reserved.
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* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
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* Copyright (C) 2007-2008 Torch Mobile, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "AffineTransform.h"
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#include "Image.h"
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#include <wtf/Ref.h>
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#include <wtf/RefCounted.h>
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#if USE(CG)
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typedef struct CGPattern* CGPatternRef;
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typedef RetainPtr<CGPatternRef> PlatformPatternPtr;
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#elif USE(DIRECT2D)
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interface ID2D1BitmapBrush;
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typedef ID2D1BitmapBrush* PlatformPatternPtr;
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namespace WebCore {
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class PlatformContextDirect2D;
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}
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typedef WebCore::PlatformContextDirect2D PlatformGraphicsContext;
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#elif USE(CAIRO)
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typedef struct _cairo_pattern cairo_pattern_t;
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typedef cairo_pattern_t* PlatformPatternPtr;
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#elif PLATFORM(HAIKU)
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#include <interface/GraphicsDefs.h>
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typedef pattern* PlatformPatternPtr;
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#endif
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namespace WebCore {
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class AffineTransform;
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class GraphicsContext;
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class Image;
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class Pattern final : public RefCounted<Pattern> {
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public:
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struct Parameters {
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Parameters(bool repeatX = true, bool repeatY = true, AffineTransform patternSpaceTransform = { })
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: patternSpaceTransform(patternSpaceTransform)
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, repeatX(repeatX)
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, repeatY(repeatY)
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{
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}
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template<class Encoder> void encode(Encoder&) const;
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template<class Decoder> static std::optional<Parameters> decode(Decoder&);
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AffineTransform patternSpaceTransform;
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bool repeatX;
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bool repeatY;
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};
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WEBCORE_EXPORT static Ref<Pattern> create(Ref<NativeImage>&& tileImage, const Parameters& = { });
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WEBCORE_EXPORT ~Pattern();
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NativeImage& tileImage() const { return m_tileImage.get(); }
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const Parameters& parameters() const { return m_parameters; }
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// Pattern space is an abstract space that maps to the default user space by the transformation 'userSpaceTransform'
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#if !USE(DIRECT2D)
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PlatformPatternPtr createPlatformPattern(const AffineTransform& userSpaceTransform) const;
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#else
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PlatformPatternPtr createPlatformPattern(const GraphicsContext&, float alpha, const AffineTransform& userSpaceTransform) const;
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#endif
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void setPatternSpaceTransform(const AffineTransform&);
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const AffineTransform& patternSpaceTransform() const { return m_parameters.patternSpaceTransform; };
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bool repeatX() const { return m_parameters.repeatX; }
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bool repeatY() const { return m_parameters.repeatY; }
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private:
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Pattern(Ref<NativeImage>&&, const Parameters&);
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Ref<NativeImage> m_tileImage;
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Parameters m_parameters;
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};
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template<class Encoder>
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void Pattern::Parameters::encode(Encoder& encoder) const
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{
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encoder << patternSpaceTransform;
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encoder << repeatX;
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encoder << repeatY;
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}
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template<class Decoder>
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std::optional<Pattern::Parameters> Pattern::Parameters::decode(Decoder& decoder)
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{
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std::optional<AffineTransform> patternSpaceTransform;
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decoder >> patternSpaceTransform;
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if (!patternSpaceTransform)
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return std::nullopt;
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std::optional<bool> repeatX;
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decoder >> repeatX;
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if (!repeatX)
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return std::nullopt;
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std::optional<bool> repeatY;
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decoder >> repeatY;
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if (!repeatY)
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return std::nullopt;
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return {{ *repeatX, *repeatY, *patternSpaceTransform }};
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}
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} //namespace
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