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SVGAngle.h
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1/*
2 Copyright (C) 2004, 2005, 2007, 2008 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 SVGAngle_h
24#define SVGAngle_h
25
26#if ENABLE(SVG)
27//#include "PlatformString.h"
28#include "wtf/RefCounted.h"
29#include "SVGNames.h"
30
31namespace WebCore {
32
33 class SVGStyledElement;
34
35 class SVGAngle : public RefCounted<SVGAngle> {
36 public:
37 SVGAngle();
38 virtual ~SVGAngle();
39
40 enum SVGAngleType {
41 SVG_ANGLETYPE_UNKNOWN = 0,
42 SVG_ANGLETYPE_UNSPECIFIED = 1,
43 SVG_ANGLETYPE_DEG = 2,
44 SVG_ANGLETYPE_RAD = 3,
45 SVG_ANGLETYPE_GRAD = 4
46 };
47
48 SVGAngleType unitType() const;
49
50 void setValue(float);
51 float value() const;
52
53 void setValueInSpecifiedUnits(float valueInSpecifiedUnits);
54 float valueInSpecifiedUnits() const;
55
56 void setValueAsString(const String&);
57 String valueAsString() const;
58
59 void newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits);
60 void convertToSpecifiedUnits(unsigned short unitType);
61
62 // Helpers
63 static double todeg(double rad);
64 static double torad(double deg);
65
66 // Returns the angle that divides the shortest arc between the two angles.
67 static double shortestArcBisector(double angle1, double angle2);
68
69 // Throughout SVG 1.1 'SVGAngle' is only used for 'SVGMarkerElement' (orient-angle)
70 const QualifiedName& associatedAttributeName() const { return SVGNames::orientAttr; }
71
72 private:
73 SVGAngleType m_unitType;
74 float m_value;
75 float m_valueInSpecifiedUnits;
76 mutable String m_valueAsString;
77
78 void calculate();
79 };
80
81} // namespace WebCore
82
83#endif // ENABLE(SVG)
84#endif // SVGAngle_h
SVGNames.h
WebCore
Definition: CSSHelper.h:7
WebCore::String
DOM::DOMString String
Definition: PlatformString.h:8
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