1/*
2 * Copyright (C) 2002, 2003 The Karbon Developers
3 * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
4 * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
5 * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
6 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB.  If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24#ifndef SVGPathParser_h
25#define SVGPathParser_h
26
27#include "SVGPathConsumer.h"
28#include "SVGPathSeg.h"
29#include <wtf/text/WTFString.h>
30
31namespace WebCore {
32
33class SVGPathSource;
34
35class SVGPathParser {
36    WTF_MAKE_NONCOPYABLE(SVGPathParser); WTF_MAKE_FAST_ALLOCATED;
37public:
38    SVGPathParser();
39
40    bool parsePathDataFromSource(PathParsingMode, bool checkForInitialMoveTo = true);
41    void setCurrentConsumer(SVGPathConsumer* consumer) { m_consumer = consumer; }
42    void setCurrentSource(SVGPathSource* source) { m_source = source; }
43    void cleanup();
44
45private:
46    bool decomposeArcToCubic(float, float, float, FloatPoint&, FloatPoint&, bool largeArcFlag, bool sweepFlag);
47    void parseClosePathSegment();
48    bool parseMoveToSegment();
49    bool parseLineToSegment();
50    bool parseLineToHorizontalSegment();
51    bool parseLineToVerticalSegment();
52    bool parseCurveToCubicSegment();
53    bool parseCurveToCubicSmoothSegment();
54    bool parseCurveToQuadraticSegment();
55    bool parseCurveToQuadraticSmoothSegment();
56    bool parseArcToSegment();
57
58    SVGPathSource* m_source;
59    SVGPathConsumer* m_consumer;
60    PathCoordinateMode m_mode;
61    PathParsingMode m_pathParsingMode;
62    SVGPathSegType m_lastCommand;
63    bool m_closePath;
64    FloatPoint m_controlPoint;
65    FloatPoint m_currentPoint;
66    FloatPoint m_subPathPoint;
67};
68
69} // namespace WebCore
70
71#endif // SVGPathParser_h
72