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    41 

    42 #ifndef QGEOINFOTHREAD_WINCE_P_H

    43 #define QGEOINFOTHREAD_WINCE_P_H

    44 

    45 #include "qmobilityglobal.h"

    46 

    47 #include <QThread>

    48 #include <QMutex>

    49 #include <QWaitCondition>

    50 #include <QDateTime>

    51 

    52 #include <windows.h>

    53 

    54 // including requires <windows.h>

    55 #include <gpsapi.h>

    56 

    57 // including requires <windows.h>

    58 // included here rather than in the cpp file to make sure it is included after <windows.h>

    59 #include <service.h> // used for SERVICE_STATE_ constants

    60 

    61 QTM_BEGIN_NAMESPACE

    62 

    63 // Used to determine if the dataUpdated signal should be emitted by a QGeoInfoThreadWinCE instance.

    64 // If valid() returns false the QGeoInfoThreadWinCE instance will ignore the data.

    65 // This is subclassed in order to filter for valid position or satellite data in GPS_POSITION

    66 // structs.

    67 class QGeoInfoValidator

    68 {

    69 public:

    70     QGeoInfoValidator();

    71     virtual ~QGeoInfoValidator();

    72     virtual bool valid(const GPS_POSITION &data) const = 0;

    73 };

    74 

    75 class QGeoInfoThreadWinCE : public QThread

    76 {

    77     Q_OBJECT

    78 

    79 public:

    80     enum {

    81         // The default timeout for requests if none is specified.

    82         DefaultRequestTimeout = 10000,

    83         // The maximum time to spend waiting for GPS events in the main loop of the thread.

    84         MaximumMainLoopWaitTime = 5000

    85     };

    86 

    87     QGeoInfoThreadWinCE(QGeoInfoValidator *validator, bool timeoutsForPeriodicUpdates, QObject *parent = 0);

    88     ~QGeoInfoThreadWinCE();

    89 

    90 //public slots:

    91     void requestUpdate(int timeout = 5000);

    92     void startUpdates();

    93     void stopUpdates();

    94     void setUpdateInterval(int updateInterval);

    95 

    96 signals:

    97     void dataUpdated(GPS_POSITION data);

    98     void updateTimeout();

    99 

   100 protected:

   101     void run();

   102 

   103 private:

   104     void wakeUp();

   105 

   106     QDateTime currentDateTime();

   107     int msecsTo(QDateTime from, QDateTime to);

   108 

   109     QGeoInfoValidator *validator;

   110     bool timeoutsForPeriodicUpdates;

   111 

   112     bool requestScheduled;

   113     qint32 requestInterval;

   114     QDateTime requestNextTime;

   115 

   116     bool updatesScheduled;

   117     qint32 updatesInterval;

   118     QDateTime updatesNextTime;

   119 

   120     bool stopping;

   121 

   122     bool gpsReachedOnState;

   123 

   124     bool hasLastPosition;

   125     bool invalidDataReceived;

   126     bool updateTimeoutTriggered;

   127     GPS_POSITION m_lastPosition;

   128 

   129     QMutex mutex;

   130     QWaitCondition statusUpdated;

   131 

   132     HANDLE m_gps;

   133     HANDLE m_newDataEvent;

   134     HANDLE m_gpsStateChange;

   135     HANDLE m_wakeUpEvent;

   136 };

   137 

   138 QTM_END_NAMESPACE

   139 

   140 #endif //#ifndef QGEOINFOTHREAD_WINCE_P_H