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 SVGPathByteStreamSource_h 21 #define SVGPathByteStreamSource_h 22 23 #include "core/svg/SVGPathByteStream.h" 24 #include "core/svg/SVGPathSource.h" 25 #include "platform/geometry/FloatPoint.h" 26 #include "wtf/PassOwnPtr.h" 27 28 namespace WebCore { 29 30 class SVGPathByteStreamSource FINAL : public SVGPathSource { 31 public: 32 explicit SVGPathByteStreamSource(const SVGPathByteStream*); 33 34 private: 35 virtual bool hasMoreData() const OVERRIDE; moveToNextToken()36 virtual bool moveToNextToken() OVERRIDE { return true; } 37 virtual bool parseSVGSegmentType(SVGPathSegType&) OVERRIDE; 38 virtual SVGPathSegType nextCommand(SVGPathSegType) OVERRIDE; 39 40 virtual bool parseMoveToSegment(FloatPoint&) OVERRIDE; 41 virtual bool parseLineToSegment(FloatPoint&) OVERRIDE; 42 virtual bool parseLineToHorizontalSegment(float&) OVERRIDE; 43 virtual bool parseLineToVerticalSegment(float&) OVERRIDE; 44 virtual bool parseCurveToCubicSegment(FloatPoint&, FloatPoint&, FloatPoint&) OVERRIDE; 45 virtual bool parseCurveToCubicSmoothSegment(FloatPoint&, FloatPoint&) OVERRIDE; 46 virtual bool parseCurveToQuadraticSegment(FloatPoint&, FloatPoint&) OVERRIDE; 47 virtual bool parseCurveToQuadraticSmoothSegment(FloatPoint&) OVERRIDE; 48 virtual bool parseArcToSegment(float&, float&, float&, bool&, bool&, FloatPoint&) OVERRIDE; 49 50 #if COMPILER(MSVC) 51 #pragma warning(disable: 4701) 52 #endif 53 template<typename DataType> readType()54 DataType readType() 55 { 56 ByteType<DataType> data; 57 size_t typeSize = sizeof(ByteType<DataType>); 58 ASSERT(m_streamCurrent + typeSize <= m_streamEnd); 59 memcpy(data.bytes, m_streamCurrent, typeSize); 60 m_streamCurrent += typeSize; 61 return data.value; 62 } 63 readFlag()64 bool readFlag() { return readType<bool>(); } readFloat()65 float readFloat() { return readType<float>(); } readSVGSegmentType()66 unsigned short readSVGSegmentType() { return readType<unsigned short>(); } readFloatPoint()67 FloatPoint readFloatPoint() 68 { 69 float x = readType<float>(); 70 float y = readType<float>(); 71 return FloatPoint(x, y); 72 } 73 74 SVGPathByteStream::DataIterator m_streamCurrent; 75 SVGPathByteStream::DataIterator m_streamEnd; 76 }; 77 78 } // namespace WebCore 79 80 #endif // SVGPathByteStreamSource_h 81