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qt5base-lts/src/gui/math3d/qvector2d.h
Jani Heikkinen 83a5694dc2 Update copyright headers 
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.

Outdated header.LGPL removed (use header.LGPL21 instead)

Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)

Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination

Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-02-11 06:49:51 +00:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVECTOR2D_H
#define QVECTOR2D_H
#include <QtCore/qpoint.h>
#include <QtCore/qmetatype.h>
QT_BEGIN_NAMESPACE
class QVector3D;
class QVector4D;
class QVariant;
#ifndef QT_NO_VECTOR2D
class Q_GUI_EXPORT QVector2D
{
public:
Q_DECL_CONSTEXPR QVector2D();
explicit QVector2D(Qt::Initialization) {}
Q_DECL_CONSTEXPR QVector2D(float xpos, float ypos);
Q_DECL_CONSTEXPR explicit QVector2D(const QPoint& point);
Q_DECL_CONSTEXPR 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;
Q_DECL_CONSTEXPR float x() const;
Q_DECL_CONSTEXPR float y() const;
void setX(float x);
void setY(float y);
float &operator[](int i);
float operator[](int i) const;
float length() const;
float lengthSquared() const; //In Qt 6 convert to inline and constexpr
QVector2D normalized() const;
void normalize();
float distanceToPoint(const QVector2D &point) const;
float distanceToLine(const QVector2D& point, const QVector2D& direction) const;
QVector2D &operator+=(const QVector2D &vector);
QVector2D &operator-=(const QVector2D &vector);
QVector2D &operator*=(float factor);
QVector2D &operator*=(const QVector2D &vector);
QVector2D &operator/=(float divisor);
inline QVector2D &operator/=(const QVector2D &vector);
static float dotProduct(const QVector2D& v1, const QVector2D& v2); //In Qt 6 convert to inline and constexpr
Q_DECL_CONSTEXPR friend inline bool operator==(const QVector2D &v1, const QVector2D &v2);
Q_DECL_CONSTEXPR friend inline bool operator!=(const QVector2D &v1, const QVector2D &v2);
Q_DECL_CONSTEXPR friend inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2);
Q_DECL_CONSTEXPR friend inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2);
Q_DECL_CONSTEXPR friend inline const QVector2D operator*(float factor, const QVector2D &vector);
Q_DECL_CONSTEXPR friend inline const QVector2D operator*(const QVector2D &vector, float factor);
Q_DECL_CONSTEXPR friend inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2);
Q_DECL_CONSTEXPR friend inline const QVector2D operator-(const QVector2D &vector);
Q_DECL_CONSTEXPR friend inline const QVector2D operator/(const QVector2D &vector, float divisor);
Q_DECL_CONSTEXPR friend inline const QVector2D operator/(const QVector2D &vector, const QVector2D &divisor);
Q_DECL_CONSTEXPR 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
Q_DECL_CONSTEXPR QPoint toPoint() const;
Q_DECL_CONSTEXPR QPointF toPointF() const;
operator QVariant() const;
private:
float xp, yp;
friend class QVector3D;
friend class QVector4D;
};
Q_DECLARE_TYPEINFO(QVector2D, Q_MOVABLE_TYPE);
Q_DECL_CONSTEXPR inline QVector2D::QVector2D() : xp(0.0f), yp(0.0f) {}
Q_DECL_CONSTEXPR inline QVector2D::QVector2D(float xpos, float ypos) : xp(xpos), yp(ypos) {}
Q_DECL_CONSTEXPR inline QVector2D::QVector2D(const QPoint& point) : xp(point.x()), yp(point.y()) {}
Q_DECL_CONSTEXPR inline QVector2D::QVector2D(const QPointF& point) : xp(point.x()), yp(point.y()) {}
inline bool QVector2D::isNull() const
{
return qIsNull(xp) && qIsNull(yp);
}
Q_DECL_CONSTEXPR inline float QVector2D::x() const { return xp; }
Q_DECL_CONSTEXPR inline float QVector2D::y() const { return yp; }
inline void QVector2D::setX(float aX) { xp = aX; }
inline void QVector2D::setY(float aY) { yp = aY; }
inline float &QVector2D::operator[](int i)
{
Q_ASSERT(uint(i) < 2u);
return *(&xp + i);
}
inline float QVector2D::operator[](int i) const
{
Q_ASSERT(uint(i) < 2u);
return *(&xp + i);
}
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*=(float 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/=(float divisor)
{
xp /= divisor;
yp /= divisor;
return *this;
}
inline QVector2D &QVector2D::operator/=(const QVector2D &vector)
{
xp /= vector.xp;
yp /= vector.yp;
return *this;
}
Q_DECL_CONSTEXPR inline bool operator==(const QVector2D &v1, const QVector2D &v2)
{
return v1.xp == v2.xp && v1.yp == v2.yp;
}
Q_DECL_CONSTEXPR inline bool operator!=(const QVector2D &v1, const QVector2D &v2)
{
return v1.xp != v2.xp || v1.yp != v2.yp;
}
Q_DECL_CONSTEXPR inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp + v2.xp, v1.yp + v2.yp);
}
Q_DECL_CONSTEXPR inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp - v2.xp, v1.yp - v2.yp);
}
Q_DECL_CONSTEXPR inline const QVector2D operator*(float factor, const QVector2D &vector)
{
return QVector2D(vector.xp * factor, vector.yp * factor);
}
Q_DECL_CONSTEXPR inline const QVector2D operator*(const QVector2D &vector, float factor)
{
return QVector2D(vector.xp * factor, vector.yp * factor);
}
Q_DECL_CONSTEXPR inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2)
{
return QVector2D(v1.xp * v2.xp, v1.yp * v2.yp);
}
Q_DECL_CONSTEXPR inline const QVector2D operator-(const QVector2D &vector)
{
return QVector2D(-vector.xp, -vector.yp);
}
Q_DECL_CONSTEXPR inline const QVector2D operator/(const QVector2D &vector, float divisor)
{
return QVector2D(vector.xp / divisor, vector.yp / divisor);
}
Q_DECL_CONSTEXPR inline const QVector2D operator/(const QVector2D &vector, const QVector2D &divisor)
{
return QVector2D(vector.xp / divisor.xp, vector.yp / divisor.yp);
}
Q_DECL_CONSTEXPR inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2)
{
return qFuzzyCompare(v1.xp, v2.xp) && qFuzzyCompare(v1.yp, v2.yp);
}
Q_DECL_CONSTEXPR inline QPoint QVector2D::toPoint() const
{
return QPoint(qRound(xp), qRound(yp));
}
Q_DECL_CONSTEXPR 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
#endif
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