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/*
* Copyright (C) Research In Motion Limited 2010. 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 "FloatPoint.h"
#include "SVGPathByteStream.h"
#include "SVGPathSource.h"
#include <wtf/StdLibExtras.h>
#include <wtf/text/ParsingUtilities.h>
namespace WebCore {
class SVGPathByteStreamSource final : public SVGPathSource {
public:
explicit SVGPathByteStreamSource(const SVGPathByteStream&);
private:
bool hasMoreData() const final;
bool moveToNextToken() final { return true; }
SVGPathSegType nextCommand(SVGPathSegType) final;
std::optional<SVGPathSegType> parseSVGSegmentType() final;
std::optional<MoveToSegment> parseMoveToSegment(FloatPoint) final;
std::optional<LineToSegment> parseLineToSegment(FloatPoint) final;
std::optional<LineToHorizontalSegment> parseLineToHorizontalSegment(FloatPoint) final;
std::optional<LineToVerticalSegment> parseLineToVerticalSegment(FloatPoint) final;
std::optional<CurveToCubicSegment> parseCurveToCubicSegment(FloatPoint) final;
std::optional<CurveToCubicSmoothSegment> parseCurveToCubicSmoothSegment(FloatPoint) final;
std::optional<CurveToQuadraticSegment> parseCurveToQuadraticSegment(FloatPoint) final;
std::optional<CurveToQuadraticSmoothSegment> parseCurveToQuadraticSmoothSegment(FloatPoint) final;
std::optional<ArcToSegment> parseArcToSegment(FloatPoint) final;
template<typename DataType>
DataType readType()
{
DataType data;
size_t dataSize = sizeof(DataType);
memcpySpan(asMutableByteSpan(data), consumeSpan(m_streamCurrent, dataSize));
return data;
}
bool readFlag()
{
return readType<bool>();
}
float readFloat()
{
return readType<float>();
}
SVGPathSegType readSVGSegmentType()
{
static_assert(std::is_same_v<std::underlying_type_t<SVGPathSegType>, uint8_t>);
return static_cast<SVGPathSegType>(readType<uint8_t>());
}
FloatPoint readFloatPoint()
{
return readType<FloatPoint>();
}
std::span<const uint8_t> m_streamCurrent;
};
} // namespace WebCore
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