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 SVGPathConsumer_h 25 #define SVGPathConsumer_h 26 27 #include "platform/geometry/FloatPoint.h" 28 #include "wtf/FastAllocBase.h" 29 #include "wtf/Noncopyable.h" 30 31 namespace WebCore { 32 33 enum PathCoordinateMode { 34 AbsoluteCoordinates, 35 RelativeCoordinates 36 }; 37 38 enum PathParsingMode { 39 NormalizedParsing, 40 UnalteredParsing 41 }; 42 43 class SVGPathConsumer { 44 WTF_MAKE_NONCOPYABLE(SVGPathConsumer); WTF_MAKE_FAST_ALLOCATED; 45 public: SVGPathConsumer()46 SVGPathConsumer() { } 47 virtual void incrementPathSegmentCount() = 0; 48 virtual bool continueConsuming() = 0; 49 virtual void cleanup() = 0; 50 51 // Used in UnalteredParsing/NormalizedParsing modes. 52 virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode) = 0; 53 virtual void lineTo(const FloatPoint&, PathCoordinateMode) = 0; 54 virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0; 55 virtual void closePath() = 0; 56 57 // Only used in UnalteredParsing mode. 58 virtual void lineToHorizontal(float, PathCoordinateMode) = 0; 59 virtual void lineToVertical(float, PathCoordinateMode) = 0; 60 virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0; 61 virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) = 0; 62 virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) = 0; 63 virtual void arcTo(float, float, float, bool largeArcFlag, bool sweepFlag, const FloatPoint&, PathCoordinateMode) = 0; 64 65 protected: ~SVGPathConsumer()66 virtual ~SVGPathConsumer() { } 67 }; 68 69 } // namespace WebCore 70 71 #endif // SVGPathConsumer_h 72