git.maemo.org Git - hikingdiary/blob - src/maemo5locationprivate.cpp

   1 #include "maemo5locationprivate.h"
   2 #include <QMessageBox>
   3
   4 /**
   5   *Default constructor of this class.
   6   *@param Maemo5Location pointer to public interface.
   7   */
   8 Maemo5LocationPrivate::Maemo5LocationPrivate(Maemo5Location* location):QObject(location)
   9 {
  10     //Initialize variables
  11     latitude = 0;
  12     longitude = 0;
  13     usegps = -1;
  14     //Get gps control object
  15     control = location_gpsd_control_get_default();
  16     //create gps device
  17     device = (LocationGPSDevice*) g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL);
  18     g_signal_connect(device, "changed", G_CALLBACK(gps_data_changed), this);
  19     g_signal_connect(device, "connected", G_CALLBACK(gps_data_connected), this);
  20 }
  21 /**
  22   *Destructor of this class. Should be used to release all allocated resources.
  23   */
  24 Maemo5LocationPrivate::~Maemo5LocationPrivate()
  25 {
  26 }
  27
  28 /**
  29   *This function is used to start to poll with gprs
  30   */
  31 void Maemo5LocationPrivate::get_acwp()
  32 {
  33     g_object_set(G_OBJECT(control), "preferred-method", LOCATION_METHOD_ACWP, NULL);
  34     usegps = 0;
  35     restart();
  36 }
  37
  38 /**
  39   *This function starts to poll via gps interface
  40   */
  41 void Maemo5LocationPrivate::get_agnss()
  42 {
  43     g_object_set(G_OBJECT(control), "preferred-method", LOCATION_METHOD_AGNSS, NULL);
  44     usegps = 1;
  45     restart();
  46 }
  47
  48 /**
  49   *Stop pollling
  50   */
  51 void Maemo5LocationPrivate::stop()
  52 {
  53     location_gpsd_control_stop(control);
  54 }
  55
  56 /**
  57   *Stop and restart polling
  58   */
  59 void Maemo5LocationPrivate::restart()
  60 {
  61     location_gpsd_control_stop(control);
  62     location_gpsd_control_start(control);
  63 }
  64
  65 void gps_data_connected(LocationGPSDevice *device, Maemo5LocationPrivate *gps)
  66 {
  67     emit gps->connected();
  68 }
  69 /**
  70   *Callback function to catch gps signals
  71   */
  72 void gps_data_changed(LocationGPSDevice *device, Maemo5LocationPrivate *gps)
  73 {
  74     //First check that LocationGpsDeviceFix can be found...this data structure contains the location info.
  75     if(gps->device->fix)
  76     {
  77         //Check that there are fields
  78         if(gps->device->fix->fields)
  79         {
  80             //Store values and emit signal
  81             gps->latitude = gps->device->fix->latitude;
  82             gps->longitude = gps->device->fix->longitude;
  83             if(gps->usegps == 0)
  84             {
  85                 emit gps->awcp();
  86             }
  87             else if(gps->usegps == 1)
  88             {
  89                 emit gps->agnss();
  90             }
  91             else
  92             {
  93                 emit gps->locationUpdated();
  94             }
  95         }
  96     }
  97
  98 }