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41 
42 #ifndef QGEOPOSITIONINFOSOURCE_GEOCLUEMASTER_H
43 #define QGEOPOSITIONINFOSOURCE_GEOCLUEMASTER_H
44 
45 #include "qgeocluemaster.h"
46 #include "geocluetypes.h"
47 
48 #include <QtCore/QTimer>
49 #include <QtPositioning/QGeoPositionInfoSource>
50 
51 class OrgFreedesktopGeoclueInterface;
52 class OrgFreedesktopGeocluePositionInterface;
53 class OrgFreedesktopGeoclueVelocityInterface;
54 
55 QT_BEGIN_NAMESPACE
56 
57 class QDBusPendingCallWatcher;
58 
59 class QGeoPositionInfoSourceGeoclueMaster : public QGeoPositionInfoSource
60 {
61     Q_OBJECT
62 
63 public:
64     explicit QGeoPositionInfoSourceGeoclueMaster(QObject *parent = 0);
65     ~QGeoPositionInfoSourceGeoclueMaster();
66 
67     // From QGeoPositionInfoSource
68     void setUpdateInterval(int msec) override;
69     QGeoPositionInfo lastKnownPosition(bool fromSatellitePositioningMethodsOnly = false) const override;
70     PositioningMethods supportedPositioningMethods() const override;
71     void setPreferredPositioningMethods(PositioningMethods methods) override;
72     int minimumUpdateInterval() const override;
73 
74     Error error() const override;
75 
76     void startUpdates() override;
77     void stopUpdates() override;
78     void requestUpdate(int timeout = 5000) override;
79 
80 private slots:
81     void positionProviderChanged(const QString &name, const QString &description,
82                                  const QString &service, const QString &path);
83     void requestUpdateTimeout();
84 
85     void getPositionFinished(QDBusPendingCallWatcher *watcher);
86     void positionChanged(qint32 fields, qint32 timestamp, double latitude, double longitude,
87                          double altitude, const Accuracy &accuracy);
88     void velocityChanged(qint32 fields, qint32 timestamp, double speed, double direction,
89                          double climb);
90 
91 private:
92     void configurePositionSource();
93     void cleanupPositionSource();
94     void setOptions();
95 
96     enum PositionField
97     {
98         NoPositionFields = 0,
99         Latitude = 1 << 0,
100         Longitude = 1 << 1,
101         Altitude = 1 << 2
102     };
103     Q_DECLARE_FLAGS(PositionFields, PositionField)
104 
105     void updatePosition(PositionFields fields, int timestamp, double latitude,
106                         double longitude, double altitude, Accuracy accuracy);
107     void positionUpdateFailed();
108 
109     enum VelocityField
110     {
111         NoVelocityFields = 0,
112         Speed = 1 << 0,
113         Direction = 1 << 1,
114         Climb = 1 << 2
115     };
116     Q_DECLARE_FLAGS(VelocityFields, VelocityField)
117 
118     void updateVelocity(VelocityFields fields, int timestamp, double speed, double direction,
119                         double climb);
120     void velocityUpdateFailed();
121 
122 private:
123     QGeoclueMaster *m_master;
124 
125     OrgFreedesktopGeoclueInterface *m_provider;
126     OrgFreedesktopGeocluePositionInterface *m_pos;
127     OrgFreedesktopGeoclueVelocityInterface *m_vel;
128 
129     QTimer m_requestTimer;
130     bool m_lastVelocityIsFresh;
131     bool m_regularUpdateTimedOut;
132     double m_lastVelocity;
133     double m_lastDirection;
134     double m_lastClimb;
135     bool m_lastPositionFromSatellite;
136     QGeoPositionInfo m_lastPosition;
137     bool m_running;
138     QGeoPositionInfoSource::Error m_error;
139 };
140 
141 QT_END_NAMESPACE
142 
143 #endif // QGEOPOSITIONINFOSOURCE_GEOCLUEMASTER_H
144