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39
40#ifndef QGESTURE_H
41#define QGESTURE_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtCore/qobject.h>
45#include <QtCore/qlist.h>
46#include <QtCore/qdatetime.h>
47#include <QtCore/qpoint.h>
48#include <QtCore/qrect.h>
49#include <QtCore/qmetatype.h>
50#include <QtGui/qevent.h>
51
52#ifndef QT_NO_GESTURES
53
54Q_DECLARE_METATYPE(Qt::GestureState)
55Q_DECLARE_METATYPE(Qt::GestureType)
56
57QT_BEGIN_NAMESPACE
58
59
60class QGesturePrivate;
61class Q_WIDGETS_EXPORT QGesture : public QObject
62{
63 Q_OBJECT
64 Q_DECLARE_PRIVATE(QGesture)
65
66 Q_PROPERTY(Qt::GestureState state READ state)
67 Q_PROPERTY(Qt::GestureType gestureType READ gestureType)
68 Q_PROPERTY(QGesture::GestureCancelPolicy gestureCancelPolicy READ gestureCancelPolicy WRITE setGestureCancelPolicy)
69 Q_PROPERTY(QPointF hotSpot READ hotSpot WRITE setHotSpot RESET unsetHotSpot)
70 Q_PROPERTY(bool hasHotSpot READ hasHotSpot)
71
72public:
73 explicit QGesture(QObject *parent = nullptr);
74 ~QGesture();
75
76 Qt::GestureType gestureType() const;
77
78 Qt::GestureState state() const;
79
80 QPointF hotSpot() const;
81 void setHotSpot(const QPointF &value);
82 bool hasHotSpot() const;
83 void unsetHotSpot();
84
85 enum GestureCancelPolicy {
86 CancelNone = 0,
87 CancelAllInContext
88 };
89
90 void setGestureCancelPolicy(GestureCancelPolicy policy);
91 GestureCancelPolicy gestureCancelPolicy() const;
92
93protected:
94 QGesture(QGesturePrivate &dd, QObject *parent);
95
96private:
97 friend class QGestureEvent;
98 friend class QGestureRecognizer;
99 friend class QGestureManager;
100 friend class QGraphicsScenePrivate;
101};
102
103class QPanGesturePrivate;
104class Q_WIDGETS_EXPORT QPanGesture : public QGesture
105{
106 Q_OBJECT
107 Q_DECLARE_PRIVATE(QPanGesture)
108
109 Q_PROPERTY(QPointF lastOffset READ lastOffset WRITE setLastOffset)
110 Q_PROPERTY(QPointF offset READ offset WRITE setOffset)
111 Q_PROPERTY(QPointF delta READ delta STORED false)
112 Q_PROPERTY(qreal acceleration READ acceleration WRITE setAcceleration)
113 Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal horizontalVelocity READ horizontalVelocity WRITE setHorizontalVelocity)
114 Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal verticalVelocity READ verticalVelocity WRITE setVerticalVelocity)
115
116public:
117 explicit QPanGesture(QObject *parent = nullptr);
118 ~QPanGesture();
119
120 QPointF lastOffset() const;
121 QPointF offset() const;
122 QPointF delta() const;
123 qreal acceleration() const;
124
125 void setLastOffset(const QPointF &value);
126 void setOffset(const QPointF &value);
127 void setAcceleration(qreal value);
128
129 friend class QPanGestureRecognizer;
130 friend class QWinNativePanGestureRecognizer;
131};
132
133class QPinchGesturePrivate;
134class Q_WIDGETS_EXPORT QPinchGesture : public QGesture
135{
136 Q_OBJECT
137 Q_DECLARE_PRIVATE(QPinchGesture)
138
139public:
140 enum ChangeFlag {
141 ScaleFactorChanged = 0x1,
142 RotationAngleChanged = 0x2,
143 CenterPointChanged = 0x4
144 };
145 Q_FLAG(ChangeFlag)
146 Q_DECLARE_FLAGS(ChangeFlags, ChangeFlag)
147 Q_FLAG(ChangeFlags)
148
149 Q_PROPERTY(ChangeFlags totalChangeFlags READ totalChangeFlags WRITE setTotalChangeFlags)
150 Q_PROPERTY(ChangeFlags changeFlags READ changeFlags WRITE setChangeFlags)
151
152 Q_PROPERTY(qreal totalScaleFactor READ totalScaleFactor WRITE setTotalScaleFactor)
153 Q_PROPERTY(qreal lastScaleFactor READ lastScaleFactor WRITE setLastScaleFactor)
154 Q_PROPERTY(qreal scaleFactor READ scaleFactor WRITE setScaleFactor)
155
156 Q_PROPERTY(qreal totalRotationAngle READ totalRotationAngle WRITE setTotalRotationAngle)
157 Q_PROPERTY(qreal lastRotationAngle READ lastRotationAngle WRITE setLastRotationAngle)
158 Q_PROPERTY(qreal rotationAngle READ rotationAngle WRITE setRotationAngle)
159
160 Q_PROPERTY(QPointF startCenterPoint READ startCenterPoint WRITE setStartCenterPoint)
161 Q_PROPERTY(QPointF lastCenterPoint READ lastCenterPoint WRITE setLastCenterPoint)
162 Q_PROPERTY(QPointF centerPoint READ centerPoint WRITE setCenterPoint)
163
164public:
165 explicit QPinchGesture(QObject *parent = nullptr);
166 ~QPinchGesture();
167
168 ChangeFlags totalChangeFlags() const;
169 void setTotalChangeFlags(ChangeFlags value);
170
171 ChangeFlags changeFlags() const;
172 void setChangeFlags(ChangeFlags value);
173
174 QPointF startCenterPoint() const;
175 QPointF lastCenterPoint() const;
176 QPointF centerPoint() const;
177 void setStartCenterPoint(const QPointF &value);
178 void setLastCenterPoint(const QPointF &value);
179 void setCenterPoint(const QPointF &value);
180
181 qreal totalScaleFactor() const;
182 qreal lastScaleFactor() const;
183 qreal scaleFactor() const;
184 void setTotalScaleFactor(qreal value);
185 void setLastScaleFactor(qreal value);
186 void setScaleFactor(qreal value);
187
188 qreal totalRotationAngle() const;
189 qreal lastRotationAngle() const;
190 qreal rotationAngle() const;
191 void setTotalRotationAngle(qreal value);
192 void setLastRotationAngle(qreal value);
193 void setRotationAngle(qreal value);
194
195 friend class QPinchGestureRecognizer;
196};
197
198Q_DECLARE_OPERATORS_FOR_FLAGS(QPinchGesture::ChangeFlags)
199
200QT_END_NAMESPACE
201
202Q_DECLARE_METATYPE(QPinchGesture::ChangeFlags)
203
204QT_BEGIN_NAMESPACE
205
206class QSwipeGesturePrivate;
207class Q_WIDGETS_EXPORT QSwipeGesture : public QGesture
208{
209 Q_OBJECT
210 Q_DECLARE_PRIVATE(QSwipeGesture)
211
212 Q_PROPERTY(SwipeDirection horizontalDirection READ horizontalDirection STORED false)
213 Q_PROPERTY(SwipeDirection verticalDirection READ verticalDirection STORED false)
214 Q_PROPERTY(qreal swipeAngle READ swipeAngle WRITE setSwipeAngle)
215 Q_PRIVATE_PROPERTY(QSwipeGesture::d_func(), qreal velocity READ velocity WRITE setVelocity)
216
217public:
218 enum SwipeDirection { NoDirection, Left, Right, Up, Down };
219 Q_ENUM(SwipeDirection)
220
221 explicit QSwipeGesture(QObject *parent = nullptr);
222 ~QSwipeGesture();
223
224 SwipeDirection horizontalDirection() const;
225 SwipeDirection verticalDirection() const;
226
227 qreal swipeAngle() const;
228 void setSwipeAngle(qreal value);
229
230 friend class QSwipeGestureRecognizer;
231};
232
233class QTapGesturePrivate;
234class Q_WIDGETS_EXPORT QTapGesture : public QGesture
235{
236 Q_OBJECT
237 Q_DECLARE_PRIVATE(QTapGesture)
238
239 Q_PROPERTY(QPointF position READ position WRITE setPosition)
240
241public:
242 explicit QTapGesture(QObject *parent = nullptr);
243 ~QTapGesture();
244
245 QPointF position() const;
246 void setPosition(const QPointF &pos);
247
248 friend class QTapGestureRecognizer;
249};
250
251class QTapAndHoldGesturePrivate;
252class Q_WIDGETS_EXPORT QTapAndHoldGesture : public QGesture
253{
254 Q_OBJECT
255 Q_DECLARE_PRIVATE(QTapAndHoldGesture)
256
257 Q_PROPERTY(QPointF position READ position WRITE setPosition)
258
259public:
260 explicit QTapAndHoldGesture(QObject *parent = nullptr);
261 ~QTapAndHoldGesture();
262
263 QPointF position() const;
264 void setPosition(const QPointF &pos);
265
266 static void setTimeout(int msecs);
267 static int timeout();
268
269 friend class QTapAndHoldGestureRecognizer;
270};
271
272class QGesture;
273class QGestureEventPrivate;
274class Q_WIDGETS_EXPORT QGestureEvent : public QEvent
275{
276public:
277 explicit QGestureEvent(const QList<QGesture *> &gestures);
278 ~QGestureEvent();
279
280 QList<QGesture *> gestures() const;
281 QGesture *gesture(Qt::GestureType type) const;
282
283 QList<QGesture *> activeGestures() const;
284 QList<QGesture *> canceledGestures() const;
285
286 using QEvent::setAccepted;
287 using QEvent::isAccepted;
288 using QEvent::accept;
289 using QEvent::ignore;
290
291 void setAccepted(QGesture *, bool);
292 void accept(QGesture *);
293 void ignore(QGesture *);
294 bool isAccepted(QGesture *) const;
295
296 void setAccepted(Qt::GestureType, bool);
297 void accept(Qt::GestureType);
298 void ignore(Qt::GestureType);
299 bool isAccepted(Qt::GestureType) const;
300
301 void setWidget(QWidget *widget);
302 QWidget *widget() const;
303
304#if QT_CONFIG(graphicsview)
305 QPointF mapToGraphicsScene(const QPointF &gesturePoint) const;
306#endif
307
308private:
309 QList<QGesture *> m_gestures;
310 QWidget *m_widget;
311 QMap<Qt::GestureType, bool> m_accepted;
312 QMap<Qt::GestureType, QWidget *> m_targetWidgets;
313
314 friend class QApplication;
315 friend class QGestureManager;
316};
317
318# ifndef QT_NO_DEBUG_STREAM
319Q_WIDGETS_EXPORT QDebug operator<<(QDebug, const QGesture *);
320Q_WIDGETS_EXPORT QDebug operator<<(QDebug, const QGestureEvent *);
321# endif
322
323QT_END_NAMESPACE
324
325Q_DECLARE_METATYPE(QGesture::GestureCancelPolicy)
326#endif // QT_NO_GESTURES
327
328#endif // QGESTURE_H
329

source code of qtbase/src/widgets/kernel/qgesture.h