1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QLIBINPUTTOUCH_P_H
5#define QLIBINPUTTOUCH_P_H
6
7#include <QtCore/QHash>
8#include <QtCore/QList>
9#include <QtCore/QPointer>
10#include <qpa/qwindowsysteminterface.h>
11#include <private/qglobal_p.h>
12
13//
14// W A R N I N G
15// -------------
16//
17// This file is not part of the Qt API. It exists purely as an
18// implementation detail. This header file may change from version to
19// version without notice, or even be removed.
20//
21// We mean it.
22//
23
24struct libinput_event_touch;
25struct libinput_device;
26
27QT_BEGIN_NAMESPACE
28
29class QScreen;
30class QLibInputTouch
31{
32public:
33 void registerDevice(libinput_device *dev);
34 void unregisterDevice(libinput_device *dev);
35 void processTouchDown(libinput_event_touch *e);
36 void processTouchMotion(libinput_event_touch *e);
37 void processTouchUp(libinput_event_touch *e);
38 void processTouchCancel(libinput_event_touch *e);
39 void processTouchFrame(libinput_event_touch *e);
40
41private:
42 struct DeviceState {
43 DeviceState() : m_touchDevice(nullptr), m_screenName() { }
44 QWindowSystemInterface::TouchPoint *point(int32_t slot);
45 QList<QWindowSystemInterface::TouchPoint> m_points;
46 QPointingDevice *m_touchDevice;
47 QString m_screenName;
48 };
49
50 DeviceState *deviceState(libinput_event_touch *e);
51 QRect screenGeometry(DeviceState *state);
52 QPointF getPos(libinput_event_touch *e);
53
54 QHash<libinput_device *, DeviceState> m_devState;
55 mutable QPointer<QScreen> m_screen;
56};
57
58QT_END_NAMESPACE
59
60#endif
61

source code of qtbase/src/platformsupport/input/libinput/qlibinputtouch_p.h