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290 lines
8.7 KiB
290 lines
8.7 KiB
14 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QVECTOR4D_H
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#define QVECTOR4D_H
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#include <QtCore/qpoint.h>
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#include <QtCore/qmetatype.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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class QMatrix4x4;
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class QVector2D;
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class QVector3D;
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#ifndef QT_NO_VECTOR4D
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class Q_GUI_EXPORT QVector4D
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{
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public:
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QVector4D();
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QVector4D(qreal xpos, qreal ypos, qreal zpos, qreal wpos);
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explicit QVector4D(const QPoint& point);
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explicit QVector4D(const QPointF& point);
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#ifndef QT_NO_VECTOR2D
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QVector4D(const QVector2D& vector);
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QVector4D(const QVector2D& vector, qreal zpos, qreal wpos);
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#endif
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#ifndef QT_NO_VECTOR3D
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QVector4D(const QVector3D& vector);
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QVector4D(const QVector3D& vector, qreal wpos);
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#endif
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bool isNull() const;
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qreal x() const;
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qreal y() const;
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qreal z() const;
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qreal w() const;
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void setX(qreal x);
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void setY(qreal y);
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void setZ(qreal z);
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void setW(qreal w);
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qreal length() const;
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qreal lengthSquared() const;
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QVector4D normalized() const;
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void normalize();
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QVector4D &operator+=(const QVector4D &vector);
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QVector4D &operator-=(const QVector4D &vector);
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QVector4D &operator*=(qreal factor);
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QVector4D &operator*=(const QVector4D &vector);
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QVector4D &operator/=(qreal divisor);
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static qreal dotProduct(const QVector4D& v1, const QVector4D& v2);
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friend inline bool operator==(const QVector4D &v1, const QVector4D &v2);
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friend inline bool operator!=(const QVector4D &v1, const QVector4D &v2);
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friend inline const QVector4D operator+(const QVector4D &v1, const QVector4D &v2);
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friend inline const QVector4D operator-(const QVector4D &v1, const QVector4D &v2);
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friend inline const QVector4D operator*(qreal factor, const QVector4D &vector);
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friend inline const QVector4D operator*(const QVector4D &vector, qreal factor);
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friend inline const QVector4D operator*(const QVector4D &v1, const QVector4D& v2);
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friend inline const QVector4D operator-(const QVector4D &vector);
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friend inline const QVector4D operator/(const QVector4D &vector, qreal divisor);
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friend inline bool qFuzzyCompare(const QVector4D& v1, const QVector4D& v2);
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#ifndef QT_NO_VECTOR2D
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QVector2D toVector2D() const;
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QVector2D toVector2DAffine() const;
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#endif
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#ifndef QT_NO_VECTOR3D
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QVector3D toVector3D() const;
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QVector3D toVector3DAffine() const;
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#endif
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QPoint toPoint() const;
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QPointF toPointF() const;
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operator QVariant() const;
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private:
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float xp, yp, zp, wp;
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QVector4D(float xpos, float ypos, float zpos, float wpos, int dummy);
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friend class QVector2D;
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friend class QVector3D;
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#ifndef QT_NO_MATRIX4X4
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friend QVector4D operator*(const QVector4D& vector, const QMatrix4x4& matrix);
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friend QVector4D operator*(const QMatrix4x4& matrix, const QVector4D& vector);
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#endif
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};
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inline QVector4D::QVector4D() : xp(0.0f), yp(0.0f), zp(0.0f), wp(0.0f) {}
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inline QVector4D::QVector4D(qreal xpos, qreal ypos, qreal zpos, qreal wpos) : xp(xpos), yp(ypos), zp(zpos), wp(wpos) {}
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inline QVector4D::QVector4D(float xpos, float ypos, float zpos, float wpos, int) : xp(xpos), yp(ypos), zp(zpos), wp(wpos) {}
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inline QVector4D::QVector4D(const QPoint& point) : xp(point.x()), yp(point.y()), zp(0.0f), wp(0.0f) {}
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inline QVector4D::QVector4D(const QPointF& point) : xp(point.x()), yp(point.y()), zp(0.0f), wp(0.0f) {}
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inline bool QVector4D::isNull() const
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{
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return qIsNull(xp) && qIsNull(yp) && qIsNull(zp) && qIsNull(wp);
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}
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inline qreal QVector4D::x() const { return qreal(xp); }
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inline qreal QVector4D::y() const { return qreal(yp); }
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inline qreal QVector4D::z() const { return qreal(zp); }
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inline qreal QVector4D::w() const { return qreal(wp); }
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inline void QVector4D::setX(qreal aX) { xp = aX; }
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inline void QVector4D::setY(qreal aY) { yp = aY; }
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inline void QVector4D::setZ(qreal aZ) { zp = aZ; }
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inline void QVector4D::setW(qreal aW) { wp = aW; }
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inline QVector4D &QVector4D::operator+=(const QVector4D &vector)
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{
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xp += vector.xp;
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yp += vector.yp;
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zp += vector.zp;
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wp += vector.wp;
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return *this;
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}
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inline QVector4D &QVector4D::operator-=(const QVector4D &vector)
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{
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xp -= vector.xp;
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yp -= vector.yp;
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zp -= vector.zp;
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wp -= vector.wp;
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return *this;
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}
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inline QVector4D &QVector4D::operator*=(qreal factor)
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{
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xp *= factor;
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yp *= factor;
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zp *= factor;
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wp *= factor;
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return *this;
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}
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inline QVector4D &QVector4D::operator*=(const QVector4D &vector)
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{
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xp *= vector.xp;
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yp *= vector.yp;
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zp *= vector.zp;
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wp *= vector.wp;
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return *this;
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}
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inline QVector4D &QVector4D::operator/=(qreal divisor)
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{
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xp /= divisor;
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yp /= divisor;
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zp /= divisor;
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wp /= divisor;
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return *this;
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}
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inline bool operator==(const QVector4D &v1, const QVector4D &v2)
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{
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return v1.xp == v2.xp && v1.yp == v2.yp && v1.zp == v2.zp && v1.wp == v2.wp;
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}
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inline bool operator!=(const QVector4D &v1, const QVector4D &v2)
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{
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return v1.xp != v2.xp || v1.yp != v2.yp || v1.zp != v2.zp || v1.wp != v2.wp;
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}
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inline const QVector4D operator+(const QVector4D &v1, const QVector4D &v2)
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{
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return QVector4D(v1.xp + v2.xp, v1.yp + v2.yp, v1.zp + v2.zp, v1.wp + v2.wp, 1);
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}
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inline const QVector4D operator-(const QVector4D &v1, const QVector4D &v2)
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{
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return QVector4D(v1.xp - v2.xp, v1.yp - v2.yp, v1.zp - v2.zp, v1.wp - v2.wp, 1);
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}
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inline const QVector4D operator*(qreal factor, const QVector4D &vector)
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{
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return QVector4D(vector.xp * factor, vector.yp * factor, vector.zp * factor, vector.wp * factor, 1);
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}
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inline const QVector4D operator*(const QVector4D &vector, qreal factor)
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{
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return QVector4D(vector.xp * factor, vector.yp * factor, vector.zp * factor, vector.wp * factor, 1);
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}
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inline const QVector4D operator*(const QVector4D &v1, const QVector4D& v2)
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{
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return QVector4D(v1.xp * v2.xp, v1.yp * v2.yp, v1.zp * v2.zp, v1.wp * v2.wp, 1);
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}
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inline const QVector4D operator-(const QVector4D &vector)
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{
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return QVector4D(-vector.xp, -vector.yp, -vector.zp, -vector.wp, 1);
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}
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inline const QVector4D operator/(const QVector4D &vector, qreal divisor)
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{
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return QVector4D(vector.xp / divisor, vector.yp / divisor, vector.zp / divisor, vector.wp / divisor, 1);
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}
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inline bool qFuzzyCompare(const QVector4D& v1, const QVector4D& v2)
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{
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return qFuzzyCompare(v1.xp, v2.xp) &&
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qFuzzyCompare(v1.yp, v2.yp) &&
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qFuzzyCompare(v1.zp, v2.zp) &&
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qFuzzyCompare(v1.wp, v2.wp);
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}
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inline QPoint QVector4D::toPoint() const
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{
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return QPoint(qRound(xp), qRound(yp));
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}
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inline QPointF QVector4D::toPointF() const
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{
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return QPointF(qreal(xp), qreal(yp));
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}
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#ifndef QT_NO_DEBUG_STREAM
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Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector4D &vector);
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#endif
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#ifndef QT_NO_DATASTREAM
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Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector4D &);
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Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector4D &);
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#endif
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif
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