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/*
Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2006 Rob Buis <buis@kde.org>
This file is part of the KDE project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef SVGAngle_h
#define SVGAngle_h
#if ENABLE(SVG)
//#include "PlatformString.h"
#include "wtf/RefCounted.h"
#include "SVGNames.h"
namespace WebCore {
class SVGStyledElement;
class SVGAngle : public RefCounted<SVGAngle> {
public:
SVGAngle();
virtual ~SVGAngle();
enum SVGAngleType {
SVG_ANGLETYPE_UNKNOWN = 0,
SVG_ANGLETYPE_UNSPECIFIED = 1,
SVG_ANGLETYPE_DEG = 2,
SVG_ANGLETYPE_RAD = 3,
SVG_ANGLETYPE_GRAD = 4
};
SVGAngleType unitType() const;
void setValue(float);
float value() const;
void setValueInSpecifiedUnits(float valueInSpecifiedUnits);
float valueInSpecifiedUnits() const;
void setValueAsString(const String&);
String valueAsString() const;
void newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits);
void convertToSpecifiedUnits(unsigned short unitType);
// Helpers
static double todeg(double rad);
static double torad(double deg);
// Returns the angle that divides the shortest arc between the two angles.
static double shortestArcBisector(double angle1, double angle2);
// Throughout SVG 1.1 'SVGAngle' is only used for 'SVGMarkerElement' (orient-angle)
const QualifiedName& associatedAttributeName() const { return SVGNames::orientAttr; }
private:
SVGAngleType m_unitType;
float m_value;
float m_valueInSpecifiedUnits;
mutable String m_valueAsString;
void calculate();
};
} // namespace WebCore
#endif // ENABLE(SVG)
#endif // SVGAngle_h
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