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 SVGPathByteStreamBuilder_h 21#define SVGPathByteStreamBuilder_h 22 23#include "FloatPoint.h" 24#include "SVGPathByteStream.h" 25#include "SVGPathConsumer.h" 26#include <wtf/text/WTFString.h> 27 28namespace WebCore { 29 30class SVGPathByteStreamBuilder : public SVGPathConsumer { 31public: 32 SVGPathByteStreamBuilder(); 33 34 void setCurrentByteStream(SVGPathByteStream* byteStream) { m_byteStream = byteStream; } 35 36private: 37 virtual void incrementPathSegmentCount() override { } 38 virtual bool continueConsuming() override { return true; } 39 virtual void cleanup() override { m_byteStream = 0; } 40 41 // Used in UnalteredParsing/NormalizedParsing modes. 42 virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode) override; 43 virtual void lineTo(const FloatPoint&, PathCoordinateMode) override; 44 virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode) override; 45 virtual void closePath() override; 46 47 // Only used in UnalteredParsing mode. 48 virtual void lineToHorizontal(float, PathCoordinateMode) override; 49 virtual void lineToVertical(float, PathCoordinateMode) override; 50 virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override; 51 virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override; 52 virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) override; 53 virtual void arcTo(float, float, float, bool largeArcFlag, bool sweepFlag, const FloatPoint&, PathCoordinateMode) override; 54 55 template<typename ByteType> 56 void writeType(const ByteType& type) 57 { 58 size_t typeSize = sizeof(ByteType); 59 for (size_t i = 0; i < typeSize; ++i) 60 m_byteStream->append(type.bytes[i]); 61 } 62 63 void writeFlag(bool value) 64 { 65 BoolByte data; 66 data.value = value; 67 writeType(data); 68 } 69 70 void writeFloat(float value) 71 { 72 FloatByte data; 73 data.value = value; 74 writeType(data); 75 } 76 77 void writeFloatPoint(const FloatPoint& point) 78 { 79 writeFloat(point.x()); 80 writeFloat(point.y()); 81 } 82 83 void writeSegmentType(unsigned short value) 84 { 85 UnsignedShortByte data; 86 data.value = value; 87 writeType(data); 88 } 89 90 SVGPathByteStream* m_byteStream; 91}; 92 93} // namespace WebCore 94 95#endif // SVGPathByteStreamBuilder_h 96