File indexing completed on 2024-04-28 11:39:15
0001 /* 0002 Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org> 0003 2004, 2005, 2006 Rob Buis <buis@kde.org> 0004 0005 This file is part of the KDE project 0006 0007 This library is free software; you can redistribute it and/or 0008 modify it under the terms of the GNU Library General Public 0009 License as published by the Free Software Foundation; either 0010 version 2 of the License, or (at your option) any later version. 0011 0012 This library is distributed in the hope that it will be useful, 0013 but WITHOUT ANY WARRANTY; without even the implied warranty of 0014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0015 Library General Public License for more details. 0016 0017 You should have received a copy of the GNU Library General Public License 0018 along with this library; see the file COPYING.LIB. If not, write to 0019 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0020 Boston, MA 02110-1301, USA. 0021 */ 0022 0023 #ifndef SVGLength_h 0024 #define SVGLength_h 0025 0026 #if ENABLE(SVG) 0027 0028 //#include "PlatformString.h" 0029 #include "Document.h" 0030 0031 namespace WebCore 0032 { 0033 0034 class SVGStyledElement; 0035 0036 enum SVGLengthType { 0037 LengthTypeUnknown = 0, 0038 LengthTypeNumber = 1, 0039 LengthTypePercentage = 2, 0040 LengthTypeEMS = 3, 0041 LengthTypeEXS = 4, 0042 LengthTypePX = 5, 0043 LengthTypeCM = 6, 0044 LengthTypeMM = 7, 0045 LengthTypeIN = 8, 0046 LengthTypePT = 9, 0047 LengthTypePC = 10 0048 }; 0049 0050 enum SVGLengthMode { 0051 LengthModeWidth = 0, 0052 LengthModeHeight, 0053 LengthModeOther 0054 }; 0055 0056 class SVGLength 0057 { 0058 public: 0059 // Forward declare these enums in the w3c naming scheme, for IDL generation 0060 enum { 0061 SVG_LENGTHTYPE_UNKNOWN = LengthTypeUnknown, 0062 SVG_LENGTHTYPE_NUMBER = LengthTypeNumber, 0063 SVG_LENGTHTYPE_PERCENTAGE = LengthTypePercentage, 0064 SVG_LENGTHTYPE_EMS = LengthTypeEMS, 0065 SVG_LENGTHTYPE_EXS = LengthTypeEXS, 0066 SVG_LENGTHTYPE_PX = LengthTypePX, 0067 SVG_LENGTHTYPE_CM = LengthTypeCM, 0068 SVG_LENGTHTYPE_MM = LengthTypeMM, 0069 SVG_LENGTHTYPE_IN = LengthTypeIN, 0070 SVG_LENGTHTYPE_PT = LengthTypePT, 0071 SVG_LENGTHTYPE_PC = LengthTypePC 0072 }; 0073 0074 SVGLength(const SVGStyledElement *context = nullptr, SVGLengthMode mode = LengthModeOther, const String &valueAsString = String()); 0075 0076 // 'SVGLength' functions 0077 SVGLengthType unitType() const; 0078 0079 float value() const; 0080 void setValue(float); 0081 0082 float valueInSpecifiedUnits() const; 0083 void setValueInSpecifiedUnits(float); 0084 0085 float valueAsPercentage() const; 0086 0087 String valueAsString() const; 0088 bool setValueAsString(const String &); 0089 0090 void newValueSpecifiedUnits(unsigned short, float valueInSpecifiedUnits); 0091 void convertToSpecifiedUnits(unsigned short); 0092 0093 // Helper functions 0094 static float PercentageOfViewport(float value, const SVGStyledElement *, SVGLengthMode); 0095 0096 inline bool isRelative() const 0097 { 0098 SVGLengthType type = unitType(); 0099 return (type == LengthTypePercentage || type == LengthTypeEMS || type == LengthTypeEXS); 0100 } 0101 0102 private: 0103 float m_valueInSpecifiedUnits; 0104 unsigned int m_unit; 0105 0106 const SVGStyledElement *m_context; 0107 }; 0108 0109 } // namespace WebCore 0110 0111 #endif // ENABLE(SVG) 0112 #endif // SVGLength_h 0113