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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.
*/
#ifndef SVGPathByteStreamSource_h
#define SVGPathByteStreamSource_h
#include "FloatPoint.h"
#include "SVGPathByteStream.h"
#include "SVGPathSource.h"
namespace WebCore {
class SVGPathByteStreamSource : public SVGPathSource {
public:
explicit SVGPathByteStreamSource(const SVGPathByteStream&);
private:
virtual bool hasMoreData() const override;
virtual bool moveToNextToken() override { return true; }
virtual bool parseSVGSegmentType(SVGPathSegType&) override;
virtual SVGPathSegType nextCommand(SVGPathSegType) override;
virtual bool parseMoveToSegment(FloatPoint&) override;
virtual bool parseLineToSegment(FloatPoint&) override;
virtual bool parseLineToHorizontalSegment(float&) override;
virtual bool parseLineToVerticalSegment(float&) override;
virtual bool parseCurveToCubicSegment(FloatPoint&, FloatPoint&, FloatPoint&) override;
virtual bool parseCurveToCubicSmoothSegment(FloatPoint&, FloatPoint&) override;
virtual bool parseCurveToQuadraticSegment(FloatPoint&, FloatPoint&) override;
virtual bool parseCurveToQuadraticSmoothSegment(FloatPoint&) override;
virtual bool parseArcToSegment(float&, float&, float&, bool&, bool&, FloatPoint&) override;
#if COMPILER(MSVC)
#pragma warning(disable: 4701)
#endif
template<typename DataType, typename ByteType>
DataType readType()
{
ByteType data;
size_t typeSize = sizeof(ByteType);
for (size_t i = 0; i < typeSize; ++i) {
ASSERT_WITH_SECURITY_IMPLICATION(m_streamCurrent < m_streamEnd);
data.bytes[i] = *m_streamCurrent;
++m_streamCurrent;
}
return data.value;
}
bool readFlag()
{
return readType<bool, BoolByte>();
}
float readFloat()
{
return readType<float, FloatByte>();
}
unsigned short readSVGSegmentType()
{
return readType<unsigned short, UnsignedShortByte>();
}
FloatPoint readFloatPoint()
{
float x = readType<float, FloatByte>();
float y = readType<float, FloatByte>();
return FloatPoint(x, y);
}
SVGPathByteStream::DataIterator m_streamCurrent;
SVGPathByteStream::DataIterator m_streamEnd;
};
} // namespace WebCore
#endif // SVGPathByteStreamSource_h
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