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39
40#ifndef QGESTURERECOGNIZER_H
41#define QGESTURERECOGNIZER_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtCore/qnamespace.h>
45
46#ifndef QT_NO_GESTURES
47
48QT_BEGIN_NAMESPACE
49
50
51class QObject;
52class QEvent;
53class QGesture;
54class Q_WIDGETS_EXPORT QGestureRecognizer
55{
56public:
57 enum ResultFlag
58 {
59 Ignore = 0x0001,
60
61 MayBeGesture = 0x0002,
62 TriggerGesture = 0x0004,
63 FinishGesture = 0x0008,
64 CancelGesture = 0x0010,
65
66 ResultState_Mask = 0x00ff,
67
68 ConsumeEventHint = 0x0100,
69 // StoreEventHint = 0x0200,
70 // ReplayStoredEventsHint = 0x0400,
71 // DiscardStoredEventsHint = 0x0800,
72
73 ResultHint_Mask = 0xff00
74 };
75 Q_DECLARE_FLAGS(Result, ResultFlag)
76
77 QGestureRecognizer();
78 virtual ~QGestureRecognizer();
79
80 virtual QGesture *create(QObject *target);
81 virtual Result recognize(QGesture *state, QObject *watched,
82 QEvent *event) = 0;
83 virtual void reset(QGesture *state);
84
85 static Qt::GestureType registerRecognizer(QGestureRecognizer *recognizer);
86 static void unregisterRecognizer(Qt::GestureType type);
87};
88
89Q_DECLARE_OPERATORS_FOR_FLAGS(QGestureRecognizer::Result)
90
91QT_END_NAMESPACE
92
93#endif // QT_NO_GESTURES
94
95#endif // QGESTURERECOGNIZER_H
96

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