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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVECTOR2D_H
#define QVECTOR2D_H
#include <QtCore/qpoint.h>
#include <QtCore/qmetatype.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QVector3D;
class QVector4D;
#ifndef QT_NO_VECTOR2D
class Q_GUI_EXPORT QVector2D
{
public:
QVector2D();
QVector2D(qreal xpos, qreal ypos);
explicit QVector2D(const QPoint& point);
explicit QVector2D(const QPointF& point);
#ifndef QT_NO_VECTOR3D
explicit QVector2D(const QVector3D& vector);
#endif
#ifndef QT_NO_VECTOR4D
explicit QVector2D(const QVector4D& vector);
#endif
bool isNull() const;
qreal x() const;
qreal y() const;
void setX(qreal x);
void setY(qreal y);
qreal length() const;
qreal lengthSquared() const;
QVector2D normalized() const;
void normalize();
QVector2D &operator+=(const QVector2D &vector);
QVector2D &operator-=(const QVector2D &vector);
QVector2D &operator*=(qreal factor);
QVector2D &operator*=(const QVector2D &vector);
QVector2D &operator/=(qreal divisor);
static qreal dotProduct(const QVector2D& v1, const QVector2D& v2);
friend inline bool operator==(const QVector2D &v1, const QVector2D &v2);
friend inline bool operator!=(const QVector2D &v1, const QVector2D &v2);
friend inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2);
friend inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2);
friend inline const QVector2D operator*(qreal factor, const QVector2D &vector);
friend inline const QVector2D operator*(const QVector2D &vector, qreal factor);
friend inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2);
friend inline const QVector2D operator-(const QVector2D &vector);
friend inline const QVector2D operator/(const QVector2D &vector, qreal divisor);
friend inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2);
#ifndef QT_NO_VECTOR3D
QVector3D toVector3D() const;
#endif
#ifndef QT_NO_VECTOR4D
QVector4D toVector4D() const;
#endif
QPoint toPoint() const;
QPointF toPointF() const;
private:
float xp, yp;
QVector2D(float xpos, float ypos, int dummy);
friend class QVector3D;
friend class QVector4D;
};
inline QVector2D::QVector2D() : xp(0.0f), yp(0.0f) {}
inline QVector2D::QVector2D(float xpos, float ypos, int) : xp(xpos), yp(ypos) {}
inline QVector2D::QVector2D(qreal xpos, qreal ypos) : xp(xpos), yp(ypos) {}
inline QVector2D::QVector2D(const QPoint& point) : xp(point.x()), yp(point.y()) {}
inline QVector2D::QVector2D(const QPointF& point) : xp(point.x()), yp(point.y()) {}
inline bool QVector2D::isNull() const
{
return qIsNull(xp) && qIsNull(yp);
}
inline qreal QVector2D::x() const { return qreal(xp); }
inline qreal QVector2D::y() const { return qreal(yp); }
inline void QVector2D::setX(qreal x) { xp = x; }
inline void QVector2D::setY(qreal y) { yp = y; }
inline QVector2D &QVector2D::operator+=(const QVector2D &vector)
{
xp += vector.xp;
yp += vector.yp;
return *this;
}
inline QVector2D &QVector2D::operator-=(const QVector2D &vector)
{
xp -= vector.xp;
yp -= vector.yp;
return *this;
}
inline QVector2D &QVector2D::operator*=(qreal factor)
{
xp *= factor;
yp *= factor;
return *this;
}
inline QVector2D &QVector2D::operator*=(const QVector2D &vector)
{
xp *= vector.xp;
yp *= vector.yp;
return *this;
}
inline QVector2D &QVector2D::operator/=(qreal divisor)
{
xp /= divisor;
yp /= divisor;
return *this;
}
inline bool operator==(const QVector2D &v1, const QVector2D &v2)
{
return v1.xp == v2.xp && v1.yp == v2.yp;
}
inline bool operator!=(const QVector2D &v1, const QVector2D &v2)
{
return v1.xp != v2.xp || v1.yp != v2.yp;
}
inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp + v2.xp, v1.yp + v2.yp, 1);
}
inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp - v2.xp, v1.yp - v2.yp, 1);
}
inline const QVector2D operator*(qreal factor, const QVector2D &vector)
{
return QVector2D(vector.xp * factor, vector.yp * factor, 1);
}
inline const QVector2D operator*(const QVector2D &vector, qreal factor)
{
return QVector2D(vector.xp * factor, vector.yp * factor, 1);
}
inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp * v2.xp, v1.yp * v2.yp, 1);
}
inline const QVector2D operator-(const QVector2D &vector)
{
return QVector2D(-vector.xp, -vector.yp, 1);
}
inline const QVector2D operator/(const QVector2D &vector, qreal divisor)
{
return QVector2D(vector.xp / divisor, vector.yp / divisor, 1);
}
inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2)
{
return qFuzzyCompare(v1.xp, v2.xp) && qFuzzyCompare(v1.yp, v2.yp);
}
inline QPoint QVector2D::toPoint() const
{
return QPoint(qRound(xp), qRound(yp));
}
inline QPointF QVector2D::toPointF() const
{
return QPointF(qreal(xp), qreal(yp));
}
#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector2D &vector);
#endif
#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector2D &);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector2D &);
#endif
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif
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