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39
40#include "qcoversensorgesturerecognizer.h"
41#include "qtsensorgesturesensorhandler.h"
42
43QT_BEGIN_NAMESPACE
44
45QCoverSensorGestureRecognizer::QCoverSensorGestureRecognizer(QObject *parent)
46 : QSensorGestureRecognizer(parent),
47 orientationReading(0),
48 proximityReading(0),
49 timer(0),
50 active(0),
51 detecting(0)
52{
53}
54
55QCoverSensorGestureRecognizer::~QCoverSensorGestureRecognizer()
56{
57}
58
59void 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
67QString QCoverSensorGestureRecognizer::id() const
68{
69 return QString("QtSensors.cover");
70}
71
72bool 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
92bool 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
107bool QCoverSensorGestureRecognizer::isActive()
108{
109 return active;
110}
111
112void 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
129void QCoverSensorGestureRecognizer::orientationReadingChanged(QOrientationReading *reading)
130{
131 orientationReading = reading;
132}
133
134void 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
144QT_END_NAMESPACE
145

source code of qtsensors/src/plugins/sensorgestures/qtsensors/qcoversensorgesturerecognizer.cpp