summaryrefslogtreecommitdiffstats
path: root/src/widgets/kernel/qgesture.h
blob: a289622276b4f8afa161db371e2a963bc598ffc9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QGESTURE_H
#define QGESTURE_H

#include <QtCore/qobject.h>
#include <QtCore/qlist.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qpoint.h>
#include <QtCore/qrect.h>
#include <QtCore/qmetatype.h>
#include <QtGui/qevent.h>

#ifndef QT_NO_GESTURES

QT_BEGIN_HEADER

Q_DECLARE_METATYPE(Qt::GestureState)
Q_DECLARE_METATYPE(Qt::GestureType)

QT_BEGIN_NAMESPACE


class QGesturePrivate;
class Q_WIDGETS_EXPORT QGesture : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QGesture)

    Q_PROPERTY(Qt::GestureState state READ state)
    Q_PROPERTY(Qt::GestureType gestureType READ gestureType)
    Q_PROPERTY(QGesture::GestureCancelPolicy gestureCancelPolicy READ gestureCancelPolicy WRITE setGestureCancelPolicy)
    Q_PROPERTY(QPointF hotSpot READ hotSpot WRITE setHotSpot RESET unsetHotSpot)
    Q_PROPERTY(bool hasHotSpot READ hasHotSpot)

public:
    explicit QGesture(QObject *parent = 0);
    ~QGesture();

    Qt::GestureType gestureType() const;

    Qt::GestureState state() const;

    QPointF hotSpot() const;
    void setHotSpot(const QPointF &value);
    bool hasHotSpot() const;
    void unsetHotSpot();

    enum GestureCancelPolicy {
        CancelNone = 0,
        CancelAllInContext
    };

    void setGestureCancelPolicy(GestureCancelPolicy policy);
    GestureCancelPolicy gestureCancelPolicy() const;

protected:
    QGesture(QGesturePrivate &dd, QObject *parent);

private:
    friend class QGestureEvent;
    friend class QGestureRecognizer;
    friend class QGestureManager;
    friend class QGraphicsScenePrivate;
};

class QPanGesturePrivate;
class Q_WIDGETS_EXPORT QPanGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPanGesture)

    Q_PROPERTY(QPointF lastOffset READ lastOffset WRITE setLastOffset)
    Q_PROPERTY(QPointF offset READ offset WRITE setOffset)
    Q_PROPERTY(QPointF delta READ delta STORED false)
    Q_PROPERTY(qreal acceleration READ acceleration WRITE setAcceleration)
    Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal horizontalVelocity READ horizontalVelocity WRITE setHorizontalVelocity)
    Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal verticalVelocity READ verticalVelocity WRITE setVerticalVelocity)

public:
    QPanGesture(QObject *parent = 0);

    QPointF lastOffset() const;
    QPointF offset() const;
    QPointF delta() const;
    qreal acceleration() const;

    void setLastOffset(const QPointF &value);
    void setOffset(const QPointF &value);
    void setAcceleration(qreal value);

    friend class QPanGestureRecognizer;
    friend class QWinNativePanGestureRecognizer;
};

class QPinchGesturePrivate;
class Q_WIDGETS_EXPORT QPinchGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPinchGesture)
    Q_FLAGS(ChangeFlags ChangeFlag)

public:
    enum ChangeFlag {
        ScaleFactorChanged = 0x1,
        RotationAngleChanged = 0x2,
        CenterPointChanged = 0x4
    };
    Q_DECLARE_FLAGS(ChangeFlags, ChangeFlag)

    Q_PROPERTY(ChangeFlags totalChangeFlags READ totalChangeFlags WRITE setTotalChangeFlags)
    Q_PROPERTY(ChangeFlags changeFlags READ changeFlags WRITE setChangeFlags)

    Q_PROPERTY(qreal totalScaleFactor READ totalScaleFactor WRITE setTotalScaleFactor)
    Q_PROPERTY(qreal lastScaleFactor READ lastScaleFactor WRITE setLastScaleFactor)
    Q_PROPERTY(qreal scaleFactor READ scaleFactor WRITE setScaleFactor)

    Q_PROPERTY(qreal totalRotationAngle READ totalRotationAngle WRITE setTotalRotationAngle)
    Q_PROPERTY(qreal lastRotationAngle READ lastRotationAngle WRITE setLastRotationAngle)
    Q_PROPERTY(qreal rotationAngle READ rotationAngle WRITE setRotationAngle)

    Q_PROPERTY(QPointF startCenterPoint READ startCenterPoint WRITE setStartCenterPoint)
    Q_PROPERTY(QPointF lastCenterPoint READ lastCenterPoint WRITE setLastCenterPoint)
    Q_PROPERTY(QPointF centerPoint READ centerPoint WRITE setCenterPoint)

public:
    QPinchGesture(QObject *parent = 0);

    ChangeFlags totalChangeFlags() const;
    void setTotalChangeFlags(ChangeFlags value);

    ChangeFlags changeFlags() const;
    void setChangeFlags(ChangeFlags value);

    QPointF startCenterPoint() const;
    QPointF lastCenterPoint() const;
    QPointF centerPoint() const;
    void setStartCenterPoint(const QPointF &value);
    void setLastCenterPoint(const QPointF &value);
    void setCenterPoint(const QPointF &value);

    qreal totalScaleFactor() const;
    qreal lastScaleFactor() const;
    qreal scaleFactor() const;
    void setTotalScaleFactor(qreal value);
    void setLastScaleFactor(qreal value);
    void setScaleFactor(qreal value);

    qreal totalRotationAngle() const;
    qreal lastRotationAngle() const;
    qreal rotationAngle() const;
    void setTotalRotationAngle(qreal value);
    void setLastRotationAngle(qreal value);
    void setRotationAngle(qreal value);

    friend class QPinchGestureRecognizer;
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QPinchGesture::ChangeFlags)

QT_END_NAMESPACE

Q_DECLARE_METATYPE(QPinchGesture::ChangeFlags)

QT_BEGIN_NAMESPACE

class QSwipeGesturePrivate;
class Q_WIDGETS_EXPORT QSwipeGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QSwipeGesture)
    Q_ENUMS(SwipeDirection)

    Q_PROPERTY(SwipeDirection horizontalDirection READ horizontalDirection STORED false)
    Q_PROPERTY(SwipeDirection verticalDirection READ verticalDirection STORED false)
    Q_PROPERTY(qreal swipeAngle READ swipeAngle WRITE setSwipeAngle)
    Q_PRIVATE_PROPERTY(QSwipeGesture::d_func(), qreal velocity READ velocity WRITE setVelocity)

public:
    enum SwipeDirection { NoDirection, Left, Right, Up, Down };
    QSwipeGesture(QObject *parent = 0);

    SwipeDirection horizontalDirection() const;
    SwipeDirection verticalDirection() const;

    qreal swipeAngle() const;
    void setSwipeAngle(qreal value);

    friend class QSwipeGestureRecognizer;
};

class QTapGesturePrivate;
class Q_WIDGETS_EXPORT QTapGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QTapGesture)

    Q_PROPERTY(QPointF position READ position WRITE setPosition)

public:
    QTapGesture(QObject *parent = 0);

    QPointF position() const;
    void setPosition(const QPointF &pos);

    friend class QTapGestureRecognizer;
};

class QTapAndHoldGesturePrivate;
class Q_WIDGETS_EXPORT QTapAndHoldGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QTapAndHoldGesture)

    Q_PROPERTY(QPointF position READ position WRITE setPosition)

public:
    QTapAndHoldGesture(QObject *parent = 0);

    QPointF position() const;
    void setPosition(const QPointF &pos);

    static void setTimeout(int msecs);
    static int timeout();

    friend class QTapAndHoldGestureRecognizer;
};

class QGesture;
class QGestureEventPrivate;
class Q_WIDGETS_EXPORT QGestureEvent : public QEvent
{
public:
    explicit QGestureEvent(const QList<QGesture *> &gestures);
    ~QGestureEvent();

    QList<QGesture *> gestures() const;
    QGesture *gesture(Qt::GestureType type) const;

    QList<QGesture *> activeGestures() const;
    QList<QGesture *> canceledGestures() const;

#ifdef Q_NO_USING_KEYWORD
    inline void setAccepted(bool accepted) { QEvent::setAccepted(accepted); }
    inline bool isAccepted() const { return QEvent::isAccepted(); }

    inline void accept() { QEvent::accept(); }
    inline void ignore() { QEvent::ignore(); }
#else
    using QEvent::setAccepted;
    using QEvent::isAccepted;
    using QEvent::accept;
    using QEvent::ignore;
#endif

    void setAccepted(QGesture *, bool);
    void accept(QGesture *);
    void ignore(QGesture *);
    bool isAccepted(QGesture *) const;

    void setAccepted(Qt::GestureType, bool);
    void accept(Qt::GestureType);
    void ignore(Qt::GestureType);
    bool isAccepted(Qt::GestureType) const;

    void setWidget(QWidget *widget);
    QWidget *widget() const;

#ifndef QT_NO_GRAPHICSVIEW
    QPointF mapToGraphicsScene(const QPointF &gesturePoint) const;
#endif

private:
    QList<QGesture *> m_gestures;
    QWidget *m_widget;
    QMap<Qt::GestureType, bool> m_accepted;
    QMap<Qt::GestureType, QWidget *> m_targetWidgets;

    friend class QApplication;
    friend class QGestureManager;
};

QT_END_NAMESPACE

Q_DECLARE_METATYPE(QGesture::GestureCancelPolicy)
QT_END_HEADER

#endif // QT_NO_GESTURES

#endif // QGESTURE_H