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 "core/svg/SVGPathConsumer.h"
28#include "core/svg/SVGPathSeg.h"
29#include "wtf/PassOwnPtr.h"
30#include "wtf/text/WTFString.h"
31
32namespace WebCore {
33
34class SVGPathSource;
35
36class SVGPathParser {
37    WTF_MAKE_NONCOPYABLE(SVGPathParser); WTF_MAKE_FAST_ALLOCATED;
38public:
39    SVGPathParser();
40
41    bool parsePathDataFromSource(PathParsingMode, bool checkForInitialMoveTo = true);
42    void setCurrentConsumer(SVGPathConsumer* consumer) { m_consumer = consumer; }
43    void setCurrentSource(SVGPathSource* source) { m_source = source; }
44    void cleanup();
45
46private:
47    bool decomposeArcToCubic(float, float, float, FloatPoint&, FloatPoint&, bool largeArcFlag, bool sweepFlag);
48    void parseClosePathSegment();
49    bool parseMoveToSegment();
50    bool parseLineToSegment();
51    bool parseLineToHorizontalSegment();
52    bool parseLineToVerticalSegment();
53    bool parseCurveToCubicSegment();
54    bool parseCurveToCubicSmoothSegment();
55    bool parseCurveToQuadraticSegment();
56    bool parseCurveToQuadraticSmoothSegment();
57    bool parseArcToSegment();
58
59    SVGPathSource* m_source;
60    SVGPathConsumer* m_consumer;
61    PathCoordinateMode m_mode;
62    PathParsingMode m_pathParsingMode;
63    SVGPathSegType m_lastCommand;
64    bool m_closePath;
65    FloatPoint m_controlPoint;
66    FloatPoint m_currentPoint;
67    FloatPoint m_subPathPoint;
68};
69
70} // namespace WebCore
71
72#endif // SVGPathParser_h
73