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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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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 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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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 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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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 #ifndef QVECTOR4D_H |
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43 #define QVECTOR4D_H |
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44 |
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45 #include <QtCore/qpoint.h> |
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46 #include <QtCore/qmetatype.h> |
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47 |
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48 QT_BEGIN_HEADER |
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49 |
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50 QT_BEGIN_NAMESPACE |
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51 |
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52 QT_MODULE(Gui) |
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53 |
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54 class QMatrix4x4; |
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55 class QVector2D; |
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56 class QVector3D; |
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57 |
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58 #ifndef QT_NO_VECTOR4D |
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59 |
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60 class Q_GUI_EXPORT QVector4D |
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61 { |
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62 public: |
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63 QVector4D(); |
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64 QVector4D(qreal xpos, qreal ypos, qreal zpos, qreal wpos); |
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65 explicit QVector4D(const QPoint& point); |
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66 explicit QVector4D(const QPointF& point); |
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67 #ifndef QT_NO_VECTOR2D |
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68 QVector4D(const QVector2D& vector); |
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69 QVector4D(const QVector2D& vector, qreal zpos, qreal wpos); |
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70 #endif |
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71 #ifndef QT_NO_VECTOR3D |
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72 QVector4D(const QVector3D& vector); |
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73 QVector4D(const QVector3D& vector, qreal wpos); |
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74 #endif |
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75 |
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76 bool isNull() const; |
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77 |
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78 qreal x() const; |
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79 qreal y() const; |
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80 qreal z() const; |
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81 qreal w() const; |
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82 |
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83 void setX(qreal x); |
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84 void setY(qreal y); |
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85 void setZ(qreal z); |
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86 void setW(qreal w); |
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87 |
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88 qreal length() const; |
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89 qreal lengthSquared() const; |
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90 |
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91 QVector4D normalized() const; |
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92 void normalize(); |
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93 |
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94 QVector4D &operator+=(const QVector4D &vector); |
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95 QVector4D &operator-=(const QVector4D &vector); |
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96 QVector4D &operator*=(qreal factor); |
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97 QVector4D &operator*=(const QVector4D &vector); |
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98 QVector4D &operator/=(qreal divisor); |
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99 |
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100 static qreal dotProduct(const QVector4D& v1, const QVector4D& v2); |
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101 |
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102 friend inline bool operator==(const QVector4D &v1, const QVector4D &v2); |
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103 friend inline bool operator!=(const QVector4D &v1, const QVector4D &v2); |
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104 friend inline const QVector4D operator+(const QVector4D &v1, const QVector4D &v2); |
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105 friend inline const QVector4D operator-(const QVector4D &v1, const QVector4D &v2); |
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106 friend inline const QVector4D operator*(qreal factor, const QVector4D &vector); |
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107 friend inline const QVector4D operator*(const QVector4D &vector, qreal factor); |
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108 friend inline const QVector4D operator*(const QVector4D &v1, const QVector4D& v2); |
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109 friend inline const QVector4D operator-(const QVector4D &vector); |
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110 friend inline const QVector4D operator/(const QVector4D &vector, qreal divisor); |
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111 |
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112 friend inline bool qFuzzyCompare(const QVector4D& v1, const QVector4D& v2); |
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113 |
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114 #ifndef QT_NO_VECTOR2D |
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115 QVector2D toVector2D() const; |
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116 QVector2D toVector2DAffine() const; |
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117 #endif |
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118 #ifndef QT_NO_VECTOR3D |
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119 QVector3D toVector3D() const; |
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120 QVector3D toVector3DAffine() const; |
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121 #endif |
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122 |
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123 QPoint toPoint() const; |
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124 QPointF toPointF() const; |
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125 |
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126 operator QVariant() const; |
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127 |
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128 private: |
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129 float xp, yp, zp, wp; |
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130 |
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131 QVector4D(float xpos, float ypos, float zpos, float wpos, int dummy); |
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132 |
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133 friend class QVector2D; |
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134 friend class QVector3D; |
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135 #ifndef QT_NO_MATRIX4X4 |
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136 friend QVector4D operator*(const QVector4D& vector, const QMatrix4x4& matrix); |
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137 friend QVector4D operator*(const QMatrix4x4& matrix, const QVector4D& vector); |
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138 #endif |
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139 }; |
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140 |
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141 inline QVector4D::QVector4D() : xp(0.0f), yp(0.0f), zp(0.0f), wp(0.0f) {} |
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142 |
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143 inline QVector4D::QVector4D(qreal xpos, qreal ypos, qreal zpos, qreal wpos) : xp(xpos), yp(ypos), zp(zpos), wp(wpos) {} |
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144 |
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145 inline QVector4D::QVector4D(float xpos, float ypos, float zpos, float wpos, int) : xp(xpos), yp(ypos), zp(zpos), wp(wpos) {} |
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146 |
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147 inline QVector4D::QVector4D(const QPoint& point) : xp(point.x()), yp(point.y()), zp(0.0f), wp(0.0f) {} |
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148 |
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149 inline QVector4D::QVector4D(const QPointF& point) : xp(point.x()), yp(point.y()), zp(0.0f), wp(0.0f) {} |
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150 |
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151 inline bool QVector4D::isNull() const |
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152 { |
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153 return qIsNull(xp) && qIsNull(yp) && qIsNull(zp) && qIsNull(wp); |
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154 } |
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155 |
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156 inline qreal QVector4D::x() const { return qreal(xp); } |
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157 inline qreal QVector4D::y() const { return qreal(yp); } |
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158 inline qreal QVector4D::z() const { return qreal(zp); } |
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159 inline qreal QVector4D::w() const { return qreal(wp); } |
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160 |
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161 inline void QVector4D::setX(qreal aX) { xp = aX; } |
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162 inline void QVector4D::setY(qreal aY) { yp = aY; } |
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163 inline void QVector4D::setZ(qreal aZ) { zp = aZ; } |
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164 inline void QVector4D::setW(qreal aW) { wp = aW; } |
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165 |
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166 inline QVector4D &QVector4D::operator+=(const QVector4D &vector) |
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167 { |
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168 xp += vector.xp; |
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169 yp += vector.yp; |
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170 zp += vector.zp; |
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171 wp += vector.wp; |
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172 return *this; |
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173 } |
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174 |
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175 inline QVector4D &QVector4D::operator-=(const QVector4D &vector) |
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176 { |
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177 xp -= vector.xp; |
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178 yp -= vector.yp; |
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179 zp -= vector.zp; |
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180 wp -= vector.wp; |
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181 return *this; |
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182 } |
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183 |
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184 inline QVector4D &QVector4D::operator*=(qreal factor) |
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185 { |
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186 xp *= factor; |
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187 yp *= factor; |
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188 zp *= factor; |
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189 wp *= factor; |
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190 return *this; |
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191 } |
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192 |
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193 inline QVector4D &QVector4D::operator*=(const QVector4D &vector) |
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194 { |
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195 xp *= vector.xp; |
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196 yp *= vector.yp; |
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197 zp *= vector.zp; |
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198 wp *= vector.wp; |
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199 return *this; |
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200 } |
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201 |
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202 inline QVector4D &QVector4D::operator/=(qreal divisor) |
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203 { |
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204 xp /= divisor; |
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205 yp /= divisor; |
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206 zp /= divisor; |
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207 wp /= divisor; |
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208 return *this; |
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209 } |
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210 |
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211 inline bool operator==(const QVector4D &v1, const QVector4D &v2) |
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212 { |
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213 return v1.xp == v2.xp && v1.yp == v2.yp && v1.zp == v2.zp && v1.wp == v2.wp; |
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214 } |
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215 |
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216 inline bool operator!=(const QVector4D &v1, const QVector4D &v2) |
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217 { |
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218 return v1.xp != v2.xp || v1.yp != v2.yp || v1.zp != v2.zp || v1.wp != v2.wp; |
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219 } |
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220 |
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221 inline const QVector4D operator+(const QVector4D &v1, const QVector4D &v2) |
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222 { |
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223 return QVector4D(v1.xp + v2.xp, v1.yp + v2.yp, v1.zp + v2.zp, v1.wp + v2.wp, 1); |
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224 } |
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225 |
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226 inline const QVector4D operator-(const QVector4D &v1, const QVector4D &v2) |
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227 { |
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228 return QVector4D(v1.xp - v2.xp, v1.yp - v2.yp, v1.zp - v2.zp, v1.wp - v2.wp, 1); |
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229 } |
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230 |
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231 inline const QVector4D operator*(qreal factor, const QVector4D &vector) |
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232 { |
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233 return QVector4D(vector.xp * factor, vector.yp * factor, vector.zp * factor, vector.wp * factor, 1); |
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234 } |
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235 |
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236 inline const QVector4D operator*(const QVector4D &vector, qreal factor) |
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237 { |
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238 return QVector4D(vector.xp * factor, vector.yp * factor, vector.zp * factor, vector.wp * factor, 1); |
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239 } |
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240 |
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241 inline const QVector4D operator*(const QVector4D &v1, const QVector4D& v2) |
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242 { |
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243 return QVector4D(v1.xp * v2.xp, v1.yp * v2.yp, v1.zp * v2.zp, v1.wp * v2.wp, 1); |
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244 } |
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245 |
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246 inline const QVector4D operator-(const QVector4D &vector) |
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247 { |
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248 return QVector4D(-vector.xp, -vector.yp, -vector.zp, -vector.wp, 1); |
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249 } |
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250 |
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251 inline const QVector4D operator/(const QVector4D &vector, qreal divisor) |
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252 { |
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253 return QVector4D(vector.xp / divisor, vector.yp / divisor, vector.zp / divisor, vector.wp / divisor, 1); |
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254 } |
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255 |
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256 inline bool qFuzzyCompare(const QVector4D& v1, const QVector4D& v2) |
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257 { |
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258 return qFuzzyCompare(v1.xp, v2.xp) && |
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259 qFuzzyCompare(v1.yp, v2.yp) && |
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260 qFuzzyCompare(v1.zp, v2.zp) && |
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261 qFuzzyCompare(v1.wp, v2.wp); |
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262 } |
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263 |
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264 inline QPoint QVector4D::toPoint() const |
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265 { |
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266 return QPoint(qRound(xp), qRound(yp)); |
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267 } |
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268 |
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269 inline QPointF QVector4D::toPointF() const |
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270 { |
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271 return QPointF(qreal(xp), qreal(yp)); |
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272 } |
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273 |
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274 #ifndef QT_NO_DEBUG_STREAM |
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275 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector4D &vector); |
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276 #endif |
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277 |
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278 #ifndef QT_NO_DATASTREAM |
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279 Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector4D &); |
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280 Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector4D &); |
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281 #endif |
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282 |
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283 #endif |
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284 |
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285 QT_END_NAMESPACE |
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286 |
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287 QT_END_HEADER |
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288 |
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289 #endif |