1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*
* 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/SVGPathSource.h"
#include "platform/geometry/FloatPoint.h"
#include "wtf/PassOwnPtr.h"
namespace blink {
class SVGPathByteStreamSource final : public SVGPathSource {
public:
explicit SVGPathByteStreamSource(const SVGPathByteStream& stream)
: m_streamCurrent(stream.begin())
, m_streamEnd(stream.end())
{
}
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>
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
|
