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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 "core/svg/SVGPathByteStream.h"
#include "core/svg/SVGPathData.h"
#include "platform/geometry/FloatPoint.h"
namespace blink {
class SVGPathByteStreamSource {
WTF_MAKE_NONCOPYABLE(SVGPathByteStreamSource);
STACK_ALLOCATED();
public:
explicit SVGPathByteStreamSource(const SVGPathByteStream& stream)
: m_streamCurrent(stream.begin()), m_streamEnd(stream.end()) {}
bool hasMoreData() const { return m_streamCurrent < m_streamEnd; }
PathSegmentData parseSegment();
private:
#if COMPILER(MSVC)
#pragma warning(disable : 4701)
#endif
template <typename DataType>
DataType readType() {
ByteType<DataType> data;
size_t typeSize = sizeof(ByteType<DataType>);
ASSERT(m_streamCurrent + typeSize <= m_streamEnd);
memcpy(data.bytes, m_streamCurrent, typeSize);
m_streamCurrent += typeSize;
return data.value;
}
bool readFlag() { return readType<bool>(); }
float readFloat() { return readType<float>(); }
unsigned short readSVGSegmentType() { return readType<unsigned short>(); }
FloatPoint readFloatPoint() {
float x = readType<float>();
float y = readType<float>();
return FloatPoint(x, y);
}
SVGPathByteStream::DataIterator m_streamCurrent;
SVGPathByteStream::DataIterator m_streamEnd;
};
} // namespace blink
#endif // SVGPathByteStreamSource_h
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