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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtSensors module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
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25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
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38 | ****************************************************************************/ |
39 | |
40 | #include "qcoversensorgesturerecognizer.h" |
41 | #include "qtsensorgesturesensorhandler.h" |
42 | |
43 | QT_BEGIN_NAMESPACE |
44 | |
45 | QCoverSensorGestureRecognizer::QCoverSensorGestureRecognizer(QObject *parent) |
46 | : QSensorGestureRecognizer(parent), |
47 | orientationReading(0), |
48 | proximityReading(0), |
49 | timer(0), |
50 | active(0), |
51 | detecting(0) |
52 | { |
53 | } |
54 | |
55 | QCoverSensorGestureRecognizer::~QCoverSensorGestureRecognizer() |
56 | { |
57 | } |
58 | |
59 | void QCoverSensorGestureRecognizer::create() |
60 | { |
61 | timer = new QTimer(this); |
62 | connect(sender: timer,SIGNAL(timeout()),receiver: this,SLOT(timeout())); |
63 | timer->setSingleShot(true); |
64 | timer->setInterval(750); |
65 | } |
66 | |
67 | QString QCoverSensorGestureRecognizer::id() const |
68 | { |
69 | return QString("QtSensors.cover" ); |
70 | } |
71 | |
72 | bool QCoverSensorGestureRecognizer::start() |
73 | { |
74 | if (QtSensorGestureSensorHandler::instance()->startSensor(sensor: QtSensorGestureSensorHandler::Proximity)) { |
75 | if (QtSensorGestureSensorHandler::instance()->startSensor(sensor: QtSensorGestureSensorHandler::Orientation)) { |
76 | active = true; |
77 | connect(sender: QtSensorGestureSensorHandler::instance(),SIGNAL(proximityReadingChanged(QProximityReading*)), |
78 | receiver: this,SLOT(proximityChanged(QProximityReading*))); |
79 | |
80 | connect(sender: QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading*)), |
81 | receiver: this,SLOT(orientationReadingChanged(QOrientationReading*))); |
82 | } else { |
83 | QtSensorGestureSensorHandler::instance()->stopSensor(sensor: QtSensorGestureSensorHandler::Proximity); |
84 | active = false; |
85 | } |
86 | } else { |
87 | active = false; |
88 | } |
89 | return active; |
90 | } |
91 | |
92 | bool QCoverSensorGestureRecognizer::stop() |
93 | { |
94 | QtSensorGestureSensorHandler::instance()->stopSensor(sensor: QtSensorGestureSensorHandler::Proximity); |
95 | QtSensorGestureSensorHandler::instance()->stopSensor(sensor: QtSensorGestureSensorHandler::Orientation); |
96 | |
97 | disconnect(sender: QtSensorGestureSensorHandler::instance(),SIGNAL(proximityReadingChanged(QProximityReading*)), |
98 | receiver: this,SLOT(proximityChanged(QProximityReading*))); |
99 | disconnect(sender: QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading*)), |
100 | receiver: this,SLOT(orientationReadingChanged(QOrientationReading*))); |
101 | |
102 | active = false; |
103 | timer->stop(); |
104 | return active; |
105 | } |
106 | |
107 | bool QCoverSensorGestureRecognizer::isActive() |
108 | { |
109 | return active; |
110 | } |
111 | |
112 | void QCoverSensorGestureRecognizer::proximityChanged(QProximityReading *reading) |
113 | { |
114 | if (orientationReading == 0) |
115 | return; |
116 | |
117 | proximityReading = reading->close(); |
118 | |
119 | // look at case of face up->face down->face up. |
120 | if (orientationReading->orientation() == QOrientationReading::FaceUp |
121 | && proximityReading) { |
122 | if (!timer->isActive()) { |
123 | timer->start(); |
124 | detecting = true; |
125 | } |
126 | } |
127 | } |
128 | |
129 | void QCoverSensorGestureRecognizer::orientationReadingChanged(QOrientationReading *reading) |
130 | { |
131 | orientationReading = reading; |
132 | } |
133 | |
134 | void QCoverSensorGestureRecognizer::timeout() |
135 | { |
136 | if ((orientationReading->orientation() == QOrientationReading::FaceUp) |
137 | && proximityReading) { |
138 | Q_EMIT cover(); |
139 | Q_EMIT detected("cover" ); |
140 | detecting = false; |
141 | } |
142 | } |
143 | |
144 | QT_END_NAMESPACE |
145 | |