1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the QtGui module of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include "qvector4d.h"
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43 | #include "qvector3d.h"
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44 | #include "qvector2d.h"
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45 | #include <QtCore/qdebug.h>
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46 | #include <QtCore/qvariant.h>
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47 | #include <QtCore/qmath.h>
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48 |
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49 | QT_BEGIN_NAMESPACE
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50 |
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51 | #ifndef QT_NO_VECTOR4D
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52 |
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53 | /*!
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54 | \class QVector4D
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55 | \brief The QVector4D class represents a vector or vertex in 4D space.
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56 | \since 4.6
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57 | \ingroup painting-3D
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58 |
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59 | The QVector4D class can also be used to represent vertices in 4D space.
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60 | We therefore do not need to provide a separate vertex class.
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61 |
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62 | \sa QQuaternion, QVector2D, QVector3D
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63 | */
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64 |
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65 | /*!
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66 | \fn QVector4D::QVector4D()
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67 |
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68 | Constructs a null vector, i.e. with coordinates (0, 0, 0, 0).
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69 | */
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70 |
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71 | /*!
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72 | \fn QVector4D::QVector4D(qreal xpos, qreal ypos, qreal zpos, qreal wpos)
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73 |
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74 | Constructs a vector with coordinates (\a xpos, \a ypos, \a zpos, \a wpos).
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75 | */
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76 |
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77 | /*!
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78 | \fn QVector4D::QVector4D(const QPoint& point)
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79 |
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80 | Constructs a vector with x and y coordinates from a 2D \a point, and
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81 | z and w coordinates of 0.
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82 | */
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83 |
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84 | /*!
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85 | \fn QVector4D::QVector4D(const QPointF& point)
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