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41
42#ifndef QVECTOR2D_H
43#define QVECTOR2D_H
44
45#include <QtCore/qpoint.h>
46#include <QtCore/qmetatype.h>
47
48QT_BEGIN_HEADER
49
50QT_BEGIN_NAMESPACE
51
52QT_MODULE(Gui)
53
54class QVector3D;
55class QVector4D;
56class QVariant;
57
58#ifndef QT_NO_VECTOR2D
59
60class Q_GUI_EXPORT QVector2D
61{
62public:
63 QVector2D();
64 QVector2D(qreal xpos, qreal ypos);
65 explicit QVector2D(const QPoint& point);
66 explicit QVector2D(const QPointF& point);
67#ifndef QT_NO_VECTOR3D
68 explicit QVector2D(const QVector3D& vector);
69#endif
70#ifndef QT_NO_VECTOR4D
71 explicit QVector2D(const QVector4D& vector);
72#endif
73
74 bool isNull() const;
75
76 qreal x() const;
77 qreal y() const;
78
79 void setX(qreal x);
80 void setY(qreal y);
81
82 qreal length() const;
83 qreal lengthSquared() const;
84
85 QVector2D normalized() const;
86 void normalize();
87
88 QVector2D &operator+=(const QVector2D &vector);
89 QVector2D &operator-=(const QVector2D &vector);
90 QVector2D &operator*=(qreal factor);
91 QVector2D &operator*=(const QVector2D &vector);
92 QVector2D &operator/=(qreal divisor);
93
94 static qreal dotProduct(const QVector2D& v1, const QVector2D& v2);
95
96 friend inline bool operator==(const QVector2D &v1, const QVector2D &v2);
97 friend inline bool 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-(const QVector2D &v1, const QVector2D &v2);
100 friend inline const QVector2D operator*(qreal factor, const QVector2D &vector);
101 friend inline const QVector2D operator*(const QVector2D &vector, qreal factor);
102 friend inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2);
103 friend inline const QVector2D operator-(const QVector2D &vector);
104 friend inline const QVector2D operator/(const QVector2D &vector, qreal divisor);
105
106 friend inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2);
107
108#ifndef QT_NO_VECTOR3D
109 QVector3D toVector3D() const;
110#endif
111#ifndef QT_NO_VECTOR4D
112 QVector4D toVector4D() const;
113#endif
114
115 QPoint toPoint() const;
116 QPointF toPointF() const;
117
118 operator QVariant() const;
119
120private:
121 float xp, yp;
122
123 QVector2D(float xpos, float ypos, int dummy);
124
125 friend class QVector3D;
126 friend class QVector4D;
127};
128
129Q_DECLARE_TYPEINFO(QVector2D, Q_MOVABLE_TYPE);
130
131inline QVector2D::QVector2D() : xp(0.0f), yp(0.0f) {}
132
133inline QVector2D::QVector2D(float xpos, float ypos, int) : xp(xpos), yp(ypos) {}
134
135inline QVector2D::QVector2D(qreal xpos, qreal ypos) : xp(xpos), yp(ypos) {}
136
137inline QVector2D::QVector2D(const QPoint& point) : xp(point.x()), yp(point.y()) {}
138
139inline QVector2D::QVector2D(const QPointF& point) : xp(point.x()), yp(point.y()) {}
140
141inline bool QVector2D::isNull() const
142{
143 return qIsNull(xp) && qIsNull(yp);
144}
145
146inline qreal QVector2D::x() const { return qreal(xp); }
147inline qreal QVector2D::y() const { return qreal(yp); }
148
149inline void QVector2D::setX(qreal aX) { xp = aX; }
150inline void QVector2D::setY(qreal aY) { yp = aY; }
151
152inline QVector2D &QVector2D::operator+=(const QVector2D &vector)
153{
154 xp += vector.xp;
155 yp += vector.yp;
156 return *this;
157}
158
159inline QVector2D &QVector2D::operator-=(const QVector2D &vector)
160{
161 xp -= vector.xp;
162 yp -= vector.yp;
163 return *this;
164}
165
166inline QVector2D &QVector2D::operator*=(qreal factor)
167{
168 xp *= factor;
169 yp *= factor;
170 return *this;
171}
172
173inline QVector2D &QVector2D::operator*=(const QVector2D &vector)
174{
175 xp *= vector.xp;
176 yp *= vector.yp;
177 return *this;
178}
179
180inline QVector2D &QVector2D::operator/=(qreal divisor)
181{
182 xp /= divisor;
183 yp /= divisor;
184 return *this;
185}
186
187inline bool operator==(const QVector2D &v1, const QVector2D &v2)
188{
189 return v1.xp == v2.xp && v1.yp == v2.yp;
190}
191
192inline bool operator!=(const QVector2D &v1, const QVector2D &v2)
193{
194 return v1.xp != v2.xp || v1.yp != v2.yp;
195}
196
197inline const QVector2D operator+(const QVector2D &v1, const QVector2D &v2)
198{
199 return QVector2D(v1.xp + v2.xp, v1.yp + v2.yp, 1);
200}
201
202inline const QVector2D operator-(const QVector2D &v1, const QVector2D &v2)
203{
204 return QVector2D(v1.xp - v2.xp, v1.yp - v2.yp, 1);
205}
206
207inline const QVector2D operator*(qreal factor, const QVector2D &vector)
208{
209 return QVector2D(vector.xp * factor, vector.yp * factor, 1);
210}
211
212inline const QVector2D operator*(const QVector2D &vector, qreal factor)
213{
214 return QVector2D(vector.xp * factor, vector.yp * factor, 1);
215}
216
217inline const QVector2D operator*(const QVector2D &v1, const QVector2D &v2)
218{
219 return QVector2D(v1.xp * v2.xp, v1.yp * v2.yp, 1);
220}
221
222inline const QVector2D operator-(const QVector2D &vector)
223{
224 return QVector2D(-vector.xp, -vector.yp, 1);
225}
226
227inline const QVector2D operator/(const QVector2D &vector, qreal divisor)
228{
229 return QVector2D(vector.xp / divisor, vector.yp / divisor, 1);
230}
231
232inline bool qFuzzyCompare(const QVector2D& v1, const QVector2D& v2)
233{
234 return qFuzzyCompare(v1.xp, v2.xp) && qFuzzyCompare(v1.yp, v2.yp);
235}
236
237inline QPoint QVector2D::toPoint() const
238{
239 return QPoint(qRound(xp), qRound(yp));
240}
241
242inline QPointF QVector2D::toPointF() const
243{
244 return QPointF(qreal(xp), qreal(yp));
245}
246
247#ifndef QT_NO_DEBUG_STREAM
248Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector2D &vector);
249#endif
250
251#ifndef QT_NO_DATASTREAM
252Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector2D &);
253Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector2D &);
254#endif
255
256#endif
257
258QT_END_NAMESPACE
259
260QT_END_HEADER
261
262#endif
263

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