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SVGLength.h
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1/*
2 Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
3 2004, 2005, 2006 Rob Buis <buis@kde.org>
4
5 This file is part of the KDE project
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21*/
22
23#ifndef SVGLength_h
24#define SVGLength_h
25
26#if ENABLE(SVG)
27
28//#include "PlatformString.h"
29#include "Document.h"
30
31namespace WebCore {
32
33 class SVGStyledElement;
34
35 enum SVGLengthType {
36 LengthTypeUnknown = 0,
37 LengthTypeNumber = 1,
38 LengthTypePercentage = 2,
39 LengthTypeEMS = 3,
40 LengthTypeEXS = 4,
41 LengthTypePX = 5,
42 LengthTypeCM = 6,
43 LengthTypeMM = 7,
44 LengthTypeIN = 8,
45 LengthTypePT = 9,
46 LengthTypePC = 10
47 };
48
49 enum SVGLengthMode {
50 LengthModeWidth = 0,
51 LengthModeHeight,
52 LengthModeOther
53 };
54
55 class SVGLength {
56 public:
57 // Forward declare these enums in the w3c naming scheme, for IDL generation
58 enum {
59 SVG_LENGTHTYPE_UNKNOWN = LengthTypeUnknown,
60 SVG_LENGTHTYPE_NUMBER = LengthTypeNumber,
61 SVG_LENGTHTYPE_PERCENTAGE = LengthTypePercentage,
62 SVG_LENGTHTYPE_EMS = LengthTypeEMS,
63 SVG_LENGTHTYPE_EXS = LengthTypeEXS,
64 SVG_LENGTHTYPE_PX = LengthTypePX,
65 SVG_LENGTHTYPE_CM = LengthTypeCM,
66 SVG_LENGTHTYPE_MM = LengthTypeMM,
67 SVG_LENGTHTYPE_IN = LengthTypeIN,
68 SVG_LENGTHTYPE_PT = LengthTypePT,
69 SVG_LENGTHTYPE_PC = LengthTypePC
70 };
71
72 SVGLength(const SVGStyledElement* context = 0, SVGLengthMode mode = LengthModeOther, const String& valueAsString = String());
73
74 // 'SVGLength' functions
75 SVGLengthType unitType() const;
76
77 float value() const;
78 void setValue(float);
79
80 float valueInSpecifiedUnits() const;
81 void setValueInSpecifiedUnits(float);
82
83 float valueAsPercentage() const;
84
85 String valueAsString() const;
86 bool setValueAsString(const String&);
87
88 void newValueSpecifiedUnits(unsigned short, float valueInSpecifiedUnits);
89 void convertToSpecifiedUnits(unsigned short);
90
91 // Helper functions
92 static float PercentageOfViewport(float value, const SVGStyledElement*, SVGLengthMode);
93
94 inline bool isRelative() const
95 {
96 SVGLengthType type = unitType();
97 return (type == LengthTypePercentage || type == LengthTypeEMS || type == LengthTypeEXS);
98 }
99
100 private:
101 float m_valueInSpecifiedUnits;
102 unsigned int m_unit;
103
104 const SVGStyledElement* m_context;
105 };
106
107} // namespace WebCore
108
109#endif // ENABLE(SVG)
110#endif // SVGLength_h
111
112// vim:ts=4:noet
WebCore
Definition: CSSHelper.h:7
WebCore::String
DOM::DOMString String
Definition: PlatformString.h:8
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