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39 
40 #ifndef QLIBINPUTTOUCH_P_H
41 #define QLIBINPUTTOUCH_P_H
42 
43 #include <QtCore/QHash>
44 #include <QtCore/QList>
45 #include <QtCore/QPointer>
46 #include <qpa/qwindowsysteminterface.h>
47 
48 //
49 //  W A R N I N G
50 //  -------------
51 //
52 // This file is not part of the Qt API.  It exists purely as an
53 // implementation detail.  This header file may change from version to
54 // version without notice, or even be removed.
55 //
56 // We mean it.
57 //
58 
59 struct libinput_event_touch;
60 struct libinput_device;
61 
62 QT_BEGIN_NAMESPACE
63 
64 class QScreen;
65 class QLibInputTouch
66 {
67 public:
68     void registerDevice(libinput_device *dev);
69     void unregisterDevice(libinput_device *dev);
70     void processTouchDown(libinput_event_touch *e);
71     void processTouchMotion(libinput_event_touch *e);
72     void processTouchUp(libinput_event_touch *e);
73     void processTouchCancel(libinput_event_touch *e);
74     void processTouchFrame(libinput_event_touch *e);
75 
76 private:
77     struct DeviceState {
DeviceStateDeviceState78         DeviceState() : m_touchDevice(nullptr), m_screenName() { }
79         QWindowSystemInterface::TouchPoint *point(int32_t slot);
80         QList<QWindowSystemInterface::TouchPoint> m_points;
81         QTouchDevice *m_touchDevice;
82         QString m_screenName;
83     };
84 
85     DeviceState *deviceState(libinput_event_touch *e);
86     QPointF getPos(libinput_event_touch *e);
87 
88     QHash<libinput_device *, DeviceState> m_devState;
89     mutable QPointer<QScreen> m_screen;
90 };
91 
92 QT_END_NAMESPACE
93 
94 #endif
95