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, 2015 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#pragma once
25
26#include "FloatPoint.h"
27#include <wtf/FastMalloc.h>
28#include <wtf/Noncopyable.h>
29
30namespace WebCore {
31
32enum PathCoordinateMode {
33 AbsoluteCoordinates,
34 RelativeCoordinates
35};
36
37enum PathParsingMode {
38 NormalizedParsing,
39 UnalteredParsing
40};
41
42class SVGPathConsumer {
43 WTF_MAKE_NONCOPYABLE(SVGPathConsumer); WTF_MAKE_FAST_ALLOCATED;
44public:
45 SVGPathConsumer() = default;
46 virtual void incrementPathSegmentCount() = 0;
47 virtual bool continueConsuming() = 0;
48
49 // Used in UnalteredParsing/NormalizedParsing modes.
50 virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode) = 0;
51 virtual void lineTo(const FloatPoint&, PathCoordinateMode) = 0;
52 virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0;
53 virtual void closePath() = 0;
54
55 // Only used in UnalteredParsing mode.
56 virtual void lineToHorizontal(float, PathCoordinateMode) = 0;
57 virtual void lineToVertical(float, PathCoordinateMode) = 0;
58 virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0;
59 virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0;
60 virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) = 0;
61 virtual void arcTo(float, float, float, bool largeArcFlag, bool sweepFlag, const FloatPoint&, PathCoordinateMode) = 0;
62
63protected:
64 virtual ~SVGPathConsumer() = default;
65};
66
67} // namespace WebCore
68