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45 #include <QtCore/qpoint.h>
46 #include <QtCore/qmetatype.h>
57 #ifndef QT_NO_VECTOR2D
59 class Q_GUI_EXPORT QVector2D
63 QVector2D(float xpos, float ypos);
64 explicit QVector2D(const QPoint& point);
65 explicit QVector2D(const QPointF& point);
66 #ifndef QT_NO_VECTOR3D
67 explicit QVector2D(const QVector3D& vector);
69 #ifndef QT_NO_VECTOR4D
70 explicit QVector2D(const QVector4D& vector);
82 float lengthSquared() const;
84 QVector2D normalized() const;
87 QVector2D &operator+=(const QVector2D &vector);
88 QVector2D &operator-=(const QVector2D &vector);
89 QVector2D &operator*=(float factor);
90 QVector2D &operator*=(const QVector2D &vector);
91 QVector2D &operator/=(float divisor);
93 static float dotProduct(const QVector2D& v1, const QVector2D& v2);
95 friend inline bool operator==(const QVector2D &v1, const QVector2D &v2);
96 friend inline bool operator!=(const QVector2D &v1, const QVector2D &v2);
97 friend inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2);
98 friend inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2);
99 friend inline const QVector2D operator*(float factor, const QVector2D &vector);
100 friend inline const QVector2D operator*(const QVector2D &vector, float factor);
101 friend inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2);
102 friend inline const QVector2D operator-(const QVector2D &vector);
103 friend inline const QVector2D operator/(const QVector2D &vector, float divisor);
105 friend inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2);
107 #ifndef QT_NO_VECTOR3D
108 QVector3D toVector3D() const;
110 #ifndef QT_NO_VECTOR4D
111 QVector4D toVector4D() const;
114 QPoint toPoint() const;
115 QPointF toPointF() const;
117 operator QVariant() const;
122 friend class QVector3D;
123 friend class QVector4D;
126 Q_DECLARE_TYPEINFO(QVector2D, Q_MOVABLE_TYPE);
128 inline QVector2D::QVector2D() : xp(0.0f), yp(0.0f) {}
130 inline QVector2D::QVector2D(float xpos, float ypos) : xp(xpos), yp(ypos) {}
132 inline QVector2D::QVector2D(const QPoint& point) : xp(point.x()), yp(point.y()) {}
134 inline QVector2D::QVector2D(const QPointF& point) : xp(point.x()), yp(point.y()) {}
136 inline bool QVector2D::isNull() const
138 return qIsNull(xp) && qIsNull(yp);
141 inline float QVector2D::x() const { return xp; }
142 inline float QVector2D::y() const { return yp; }
144 inline void QVector2D::setX(float aX) { xp = aX; }
145 inline void QVector2D::setY(float aY) { yp = aY; }
147 inline QVector2D &QVector2D::operator+=(const QVector2D &vector)
154 inline QVector2D &QVector2D::operator-=(const QVector2D &vector)
161 inline QVector2D &QVector2D::operator*=(float factor)
168 inline QVector2D &QVector2D::operator*=(const QVector2D &vector)
175 inline QVector2D &QVector2D::operator/=(float divisor)
182 inline bool operator==(const QVector2D &v1, const QVector2D &v2)
184 return v1.xp == v2.xp && v1.yp == v2.yp;
187 inline bool operator!=(const QVector2D &v1, const QVector2D &v2)
189 return v1.xp != v2.xp || v1.yp != v2.yp;
192 inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2)
194 return QVector2D(v1.xp + v2.xp, v1.yp + v2.yp);
197 inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2)
199 return QVector2D(v1.xp - v2.xp, v1.yp - v2.yp);
202 inline const QVector2D operator*(float factor, const QVector2D &vector)
204 return QVector2D(vector.xp * factor, vector.yp * factor);
207 inline const QVector2D operator*(const QVector2D &vector, float factor)
209 return QVector2D(vector.xp * factor, vector.yp * factor);
212 inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2)
214 return QVector2D(v1.xp * v2.xp, v1.yp * v2.yp);
217 inline const QVector2D operator-(const QVector2D &vector)
219 return QVector2D(-vector.xp, -vector.yp);
222 inline const QVector2D operator/(const QVector2D &vector, float divisor)
224 return QVector2D(vector.xp / divisor, vector.yp / divisor);
227 inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2)
229 return qFuzzyCompare(v1.xp, v2.xp) && qFuzzyCompare(v1.yp, v2.yp);
232 inline QPoint QVector2D::toPoint() const
234 return QPoint(qRound(xp), qRound(yp));
237 inline QPointF QVector2D::toPointF() const
239 return QPointF(qreal(xp), qreal(yp));
242 #ifndef QT_NO_DEBUG_STREAM
243 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector2D &vector);
246 #ifndef QT_NO_DATASTREAM
247 Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector2D &);
248 Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector2D &);