SVGPathByteStreamSource.h [plain text]
#ifndef SVGPathByteStreamSource_h
#define SVGPathByteStreamSource_h
#if ENABLE(SVG)
#include "FloatPoint.h"
#include "SVGPathByteStream.h"
#include "SVGPathSource.h"
#include <wtf/PassOwnPtr.h>
namespace WebCore {
class SVGPathByteStreamSource : public SVGPathSource {
public:
static PassOwnPtr<SVGPathByteStreamSource> create(SVGPathByteStream* stream)
{
return adoptPtr(new SVGPathByteStreamSource(stream));
}
private:
SVGPathByteStreamSource(SVGPathByteStream*);
virtual bool hasMoreData() const;
virtual bool moveToNextToken() { return true; }
virtual bool parseSVGSegmentType(SVGPathSegType&);
virtual SVGPathSegType nextCommand(SVGPathSegType);
virtual bool parseMoveToSegment(FloatPoint&);
virtual bool parseLineToSegment(FloatPoint&);
virtual bool parseLineToHorizontalSegment(float&);
virtual bool parseLineToVerticalSegment(float&);
virtual bool parseCurveToCubicSegment(FloatPoint&, FloatPoint&, FloatPoint&);
virtual bool parseCurveToCubicSmoothSegment(FloatPoint&, FloatPoint&);
virtual bool parseCurveToQuadraticSegment(FloatPoint&, FloatPoint&);
virtual bool parseCurveToQuadraticSmoothSegment(FloatPoint&);
virtual bool parseArcToSegment(float&, float&, float&, bool&, bool&, FloatPoint&);
#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(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* m_stream;
SVGPathByteStream::DataIterator m_streamCurrent;
SVGPathByteStream::DataIterator m_streamEnd;
};
}
#endif // ENABLE(SVG)
#endif // SVGPathByteStreamSource_h