git.maemo.org Git - gps-tracker/blob - gps-tracker.c

   1 #include <glib.h>
   2
   3 #include <hildon/hildon.h>
   4 #include <hildon/hildon-file-chooser-dialog.h>
   5 #include <location/location-gpsd-control.h>
   6 #include <location/location-gps-device.h>
   7 #include <location/location-misc.h>
   8 #include <location/location-distance-utils.h>
   9
  10 typedef struct {
  11     HildonProgram *program;
  12     HildonWindow *window;
  13
  14     GtkWidget * main_vbox, *btn_hbox;
  15     GtkWidget *status_label;
  16     GtkButton *start_stop_button, *save_button;
  17     gboolean tracking_is_on;
  18     FILE *outf_p;
  19     gchar *working_dir;
  20 } AppData;
  21
  22 static gchar * interface_file_chooser (AppData * appdata, GtkFileChooserAction action)
  23 {
  24     GtkWidget *dialog;
  25     gchar *filename = NULL;
  26     gchar tmpname[PATH_MAX];
  27     time_t t;
  28     struct tm *tmp;
  29
  30     t = time(NULL);
  31     tmp = localtime(&t);
  32     strftime(tmpname, sizeof(tmpname), "gps-tracker-%F-%H-%M.gpx", tmp);
  33     dialog = hildon_file_chooser_dialog_new (GTK_WINDOW (appdata->window), action);
  34     gtk_widget_show_all (GTK_WIDGET (dialog));
  35     gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER (dialog), tmpname);
  36     gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), appdata->working_dir);
  37
  38     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
  39         filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
  40     }
  41
  42     gtk_widget_destroy(dialog);
  43     return filename;
  44 }
  45
  46 static void cb_start_stop (GtkWidget * w, AppData * data)
  47 {
  48   data->tracking_is_on = !data->tracking_is_on;
  49   if(data->tracking_is_on) {
  50     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking started");
  51     gtk_button_set_label (data->start_stop_button, "Stop");
  52   }
  53   else {
  54     gtk_button_set_label (data->start_stop_button, "Start");
  55     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking stopped");
  56   }
  57 }
  58
  59 static void cb_file_save (GtkWidget * w, AppData * data)
  60 {
  61     gchar *filename = NULL;
  62     filename = interface_file_chooser (data, GTK_FILE_CHOOSER_ACTION_SAVE);
  63
  64     if (filename) {
  65         //FILE * f = fopen (filename, "w");
  66         //fprintf (f, "This file was generated by Hildon File Chooser example.");
  67         //fclose (f);
  68         g_print ("File saved as %s\n", filename);
  69         hildon_banner_show_information(GTK_WIDGET(data->window), NULL, filename);
  70     }
  71     g_free(filename);
  72 }
  73
  74 static void
  75 on_gps_device_changed (LocationGPSDevice *device, gpointer data)
  76 {
  77   AppData *app_data = data;
  78   GtkLabel *info = (GtkLabel*)app_data->status_label;
  79   GString *msg;
  80         if (!device)
  81                 return;
  82
  83   msg = g_string_sized_new (512);
  84         if (device->fix) {
  85                 if (device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) {
  86                         g_print ("time = %f\n", device->fix->time);
  87       g_string_append_printf(msg, "time = %f\n", device->fix->time);
  88     }
  89
  90                 if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET) {
  91                         g_print ("lat = %f, long = %f\n",
  92                                         device->fix->latitude,
  93                                         device->fix->longitude);
  94                         g_string_append_printf (msg, "lat = %f, long = %f\n",
  95                                         device->fix->latitude,
  96                                         device->fix->longitude);
  97     }
  98
  99                 if (device->fix->fields & LOCATION_GPS_DEVICE_ALTITUDE_SET) {
 100                         g_print ("alt = %f\n", device->fix->altitude);
 101                         g_string_append_printf (msg, "alt = %f\n", device->fix->altitude);
 102     }
 103
 104                 if (device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
 105                         g_print ("speed = %f\n", device->fix->speed);
 106                         g_string_append_printf (msg, "speed = %f, ", device->fix->speed);
 107     }
 108
 109                 if (device->fix->fields & LOCATION_GPS_DEVICE_TRACK_SET) {
 110                         g_print ("track = %f\n", device->fix->track);
 111                         g_string_append_printf (msg, "track = %f, ", device->fix->track);
 112     }
 113
 114                 if (device->fix->fields & LOCATION_GPS_DEVICE_CLIMB_SET) {
 115                         g_print ("climb = %f\n", device->fix->climb);
 116                         g_string_append_printf (msg, "climb = %f\n", device->fix->climb);
 117     }
 118
 119                 g_print ("Accuracy values:\n");
 120                 g_print ("\tept = %e, eph = %e, epv = %e, epd = %e, "
 121                                 "eps = %e, epc = %e\n",
 122                                 device->fix->ept,
 123                                 device->fix->eph,
 124                                 device->fix->epv,
 125                                 device->fix->epd,
 126                                 device->fix->eps,
 127                                 device->fix->epc);
 128         }
 129
 130         g_print ("Satellites in view: %d\n", device->satellites_in_view);
 131         g_print ("Satellites in use: %d\n", device->satellites_in_use);
 132   g_string_append_printf (msg, "Satellites = % 2d/% 2d\n", device->satellites_in_use, device->satellites_in_view);
 133         g_print ("GPS status: %d\n", device->status);
 134         g_string_append_printf (msg, "GPS status: %d\n", device->status);
 135
 136   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(app_data->window), device->status == LOCATION_GPS_DEVICE_STATUS_NO_FIX);
 137
 138
 139         if (device->cell_info) {
 140                 if (device->cell_info->flags & LOCATION_CELL_INFO_GSM_CELL_INFO_SET)
 141                         g_print ("Mobile Coutry Code GSM: %d\n", device->cell_info->gsm_cell_info.mcc);
 142
 143                 if (device->cell_info->flags & LOCATION_CELL_INFO_WCDMA_CELL_INFO_SET)
 144                         g_print ("Mobile Coutry Code WCDMA: %d\n", device->cell_info->wcdma_cell_info.mcc);
 145         }
 146
 147   gtk_label_set_text(info, msg->str);
 148   //gtk_widget_show(GTK_WIDGET(info));
 149   g_string_free(msg, TRUE);
 150 }
 151
 152 static void
 153 on_gps_error (LocationGPSDevice *device, gpointer data)
 154 {
 155   //AppData *app_data = data;
 156         g_error ("GPS error");
 157 }
 158
 159 static void
 160 on_gps_stop (LocationGPSDevice *device, gpointer data)
 161 {
 162   AppData *app_data = data;
 163   const gchar *msg = "GPS stopped";
 164   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 165         g_warning (msg);
 166 }
 167
 168 static void
 169 on_gps_start (LocationGPSDevice *device, gpointer data)
 170 {
 171   AppData *app_data = data;
 172   const gchar *msg = "GPS started";
 173   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 174         g_warning (msg);
 175 }
 176
 177 int main (int argc, char **argv)
 178 {
 179   AppData * data = g_new0 (AppData, 1);
 180
 181         hildon_gtk_init (&argc, &argv);
 182         LocationGPSDControl *control;
 183         LocationGPSDevice *device;
 184
 185   data->working_dir = g_strdup_printf("%s" G_DIR_SEPARATOR_S "MyDocs", g_get_home_dir());
 186         data->program = hildon_program_get_instance ();
 187         g_set_application_name("GPS tracker");
 188
 189         data->window = HILDON_WINDOW(hildon_stackable_window_new ());
 190         hildon_program_add_window (data->program, HILDON_WINDOW (data->window));
 191
 192   data->main_vbox = (void*)gtk_vbox_new(FALSE, 0);
 193   data->btn_hbox = (void*)gtk_hbox_new(TRUE, 0);
 194
 195   data->start_stop_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 196   data->save_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 197   gtk_button_set_label (data->start_stop_button, "Start");
 198   gtk_button_set_label (data->save_button, "Save");
 199   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->start_stop_button), FALSE, FALSE, 8);
 200   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->save_button), FALSE, FALSE, 8);
 201   gtk_box_pack_start(GTK_BOX(data->main_vbox), GTK_WIDGET(data->btn_hbox), FALSE, FALSE, 0);
 202   data->status_label = gtk_label_new("Waiting for GPS ...");
 203   gtk_box_pack_start_defaults(GTK_BOX(data->main_vbox), data->status_label);
 204         /* Add vbox to main window */
 205         gtk_container_add (GTK_CONTAINER (data->window), GTK_WIDGET(data->main_vbox));
 206
 207   g_signal_connect (G_OBJECT (data->save_button), "clicked", G_CALLBACK (cb_file_save), data);
 208   g_signal_connect (G_OBJECT (data->start_stop_button), "clicked", G_CALLBACK (cb_start_stop), data);
 209         g_signal_connect (G_OBJECT (data->window), "destroy",
 210                         G_CALLBACK (gtk_main_quit), NULL);
 211
 212         control = location_gpsd_control_get_default ();
 213   location_gpsd_control_start (control);
 214
 215         /*
 216          * Note that in real life one may want to use some other method and interval
 217          * than LOCATION_METHOD_USER_SELECTED and LOCATION_INTERVAL_DEFAULT,
 218          * respectively. For more information on possible values for these parameters
 219          * please see liblocation online documentation.
 220          */
 221         g_object_set (G_OBJECT (control),
 222                         "preferred-method", LOCATION_METHOD_USER_SELECTED,
 223                         "preferred-interval", LOCATION_INTERVAL_DEFAULT,
 224                         NULL);
 225
 226         device  = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
 227
 228         g_signal_connect (control, "error",             G_CALLBACK (on_gps_error),              data);
 229         g_signal_connect (control, "gpsd-running",      G_CALLBACK (on_gps_start),              data);
 230         g_signal_connect (control, "gpsd-stopped",      G_CALLBACK (on_gps_stop),               data);
 231         g_signal_connect (device,  "changed",           G_CALLBACK (on_gps_device_changed),     data);
 232
 233         gtk_widget_show_all (GTK_WIDGET (data->window));
 234
 235   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(data->window), 1);
 236         gtk_main ();
 237
 238   location_gpsd_control_stop (control);
 239
 240         g_object_unref (device);
 241         g_object_unref (control);
 242   g_free(data->working_dir);
 243   g_free(data);
 244
 245         return 0;
 246 }