git.maemo.org Git - googlelatitude/blob - src/gps.cpp

   1 #include "gps.h"
   2
   3 #ifdef Q_WS_MAEMO_5
   4
   5 GpsMaemo5::GpsMaemo5(QObject *parent) : QObject(parent) {
   6     latitude = 0;
   7     longitude = 0;
   8     accuracy = 0;
   9     usegps = -1;
  10
  11     control = location_gpsd_control_get_default();
  12     device = (LocationGPSDevice*) g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL);
  13     g_signal_connect(device, "changed", G_CALLBACK(GpsMaemo5_changed), this);
  14 }
  15
  16 void GpsMaemo5::get_acwp() {
  17     g_object_set(G_OBJECT(control), "preferred-method", LOCATION_METHOD_ACWP, NULL);
  18     usegps = 0;
  19     restart();
  20 }
  21
  22 void GpsMaemo5::get_agnss() {
  23     g_object_set(G_OBJECT(control), "preferred-method", LOCATION_METHOD_AGNSS, NULL);
  24     usegps = 1;
  25     restart();
  26 }
  27
  28 void GpsMaemo5::stop() {
  29     location_gpsd_control_stop(control);
  30 }
  31
  32 void GpsMaemo5::restart() {
  33     location_gpsd_control_stop(control);
  34     location_gpsd_control_start(control);
  35 }
  36
  37 void GpsMaemo5_changed(LocationGPSDevice *device, GpsMaemo5 *gps) {
  38     if (gps->device->fix) {
  39         if (gps->device->fix->fields) {
  40             g_print("lat = %f, long = %f, eph = %f\n", gps->device->fix->latitude, gps->device->fix->longitude, gps->device->fix->eph/100.);
  41             gps->latitude = gps->device->fix->latitude;
  42             gps->longitude = gps->device->fix->longitude;
  43             gps->accuracy = gps->device->fix->eph/100.;
  44
  45             if ( gps->usegps == 0) {
  46                 emit gps->getOK_acwp();
  47                 // if ( gps->accuracy < 100*1000 ) gps->stop();
  48                 if ( gps->accuracy < 640*1000 ) gps->stop();
  49             } else if ( gps->usegps == 1 ) {
  50                 emit gps->getOK_agnss();
  51                 // if ( device->satellites_in_use > 0 ) gps->stop();
  52                 if ( gps->device->fix->mode == LOCATION_GPS_DEVICE_MODE_3D ) gps->stop();
  53             } else {
  54                 emit gps->getOK();
  55             }
  56         }
  57     }
  58 }
  59
  60 #endif