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    41 

    42 #ifndef QGEOPOSITIONINFOSOURCEMAEMO5_H

    43 #define QGEOPOSITIONINFOSOURCEMAEMO5_H

    44 

    45 #include <QTimer>

    46 #include "qgeopositioninfosource.h"

    47 

    48 #define INIT_OK                     0

    49 #define INIT_FAILED                 -1

    50 #define MINIMUM_UPDATE_INTERVAL     1000

    51 #define DEFAULT_UPDATE_INTERVAL     5000

    52 #define POWERSAVE_THRESHOLD         180000

    53 #define POWERSAVE_POWERON_PERIOD    120000

    54 

    55 QTM_BEGIN_NAMESPACE

    56 

    57 class LiblocationWrapper;

    58 

    59 class QGeoPositionInfoSourceMaemo : public QGeoPositionInfoSource

    60 {

    61     Q_OBJECT

    62 

    63 public:

    64 

    65     QGeoPositionInfoSourceMaemo(QObject *parent = 0);

    66 

    67     int init();

    68 

    69     virtual void setUpdateInterval(int interval);

    70     virtual void setPreferredPositioningMethods(PositioningMethods methods);

    71     virtual QGeoPositionInfo lastKnownPosition(bool fromSatellitePositioningMethodsOnly = false) const;

    72     virtual PositioningMethods supportedPositioningMethods() const;

    73     virtual int minimumUpdateInterval() const;

    74 

    75 private:

    76     bool positionInited;

    77     QTimer *updateTimer;

    78     QTimer *requestTimer;

    79     int timerInterval;

    80     bool errorOccurred;

    81     bool errorSent;

    82 

    83     void activateTimer();

    84     void startLocationDaemon();

    85     

    86     enum PositionInfoState {

    87         Undefined = 0,

    88         Started = 1,

    89         Stopped = 2,

    90         RequestActive = 4,

    91         PowersaveActive = 8

    92     };

    93     int positionInfoState;

    94     

    95     QGeoPositionInfo lastUpdateFromSatellite;

    96     QGeoPositionInfo lastUpdateFromNetwork;

    97 

    98 signals:

    99     void positionUpdated(const QGeoPositionInfo &update);

   100     

   101 public slots:

   102     void startUpdates();

   103     void stopUpdates();

   104     void requestUpdate(int timeout = DEFAULT_UPDATE_INTERVAL);

   105 

   106 private slots:

   107     void requestTimeoutElapsed();

   108     void error();

   109     void newPositionUpdate(const QGeoPositionInfo &position);

   110     void updateTimeoutElapsed();

   111 

   112 private:

   113     Q_DISABLE_COPY(QGeoPositionInfoSourceMaemo)

   114 };

   115 

   116 QTM_END_NAMESPACE

   117 

   118 #endif // QGEOPOSITIONINFOSOURCEMAEMO5_H