1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef SVGPathSource_h
21#define SVGPathSource_h
22
23#include "core/svg/SVGPathSeg.h"
24
25namespace blink {
26
27class FloatPoint;
28
29class SVGPathSource {
30    WTF_MAKE_NONCOPYABLE(SVGPathSource); WTF_MAKE_FAST_ALLOCATED;
31public:
32    SVGPathSource() { }
33    virtual ~SVGPathSource() { }
34
35    virtual bool hasMoreData() const = 0;
36    virtual bool moveToNextToken() = 0;
37    virtual bool parseSVGSegmentType(SVGPathSegType&) = 0;
38    virtual SVGPathSegType nextCommand(SVGPathSegType previousCommand) = 0;
39
40    virtual bool parseMoveToSegment(FloatPoint&) = 0;
41    virtual bool parseLineToSegment(FloatPoint&) = 0;
42    virtual bool parseLineToHorizontalSegment(float&) = 0;
43    virtual bool parseLineToVerticalSegment(float&) = 0;
44    virtual bool parseCurveToCubicSegment(FloatPoint&, FloatPoint&, FloatPoint&) = 0;
45    virtual bool parseCurveToCubicSmoothSegment(FloatPoint&, FloatPoint&) = 0;
46    virtual bool parseCurveToQuadraticSegment(FloatPoint&, FloatPoint&) = 0;
47    virtual bool parseCurveToQuadraticSmoothSegment(FloatPoint&) = 0;
48    virtual bool parseArcToSegment(float&, float&, float&, bool&, bool&, FloatPoint&) = 0;
49};
50
51} // namespace blink
52
53#endif // SVGPathSource_h
54