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

   1 #include <glib.h>
   2 #include <glib/gstdio.h>
   3
   4 #include <hildon/hildon.h>
   5 #include <hildon/hildon-file-chooser-dialog.h>
   6 #include <location/location-gpsd-control.h>
   7 #include <location/location-gps-device.h>
   8 #include <location/location-misc.h>
   9 #include <location/location-distance-utils.h>
  10
  11 typedef struct {
  12     HildonProgram *program;
  13     HildonWindow *window;
  14
  15     GtkWidget * main_vbox, *btn_hbox;
  16     GtkWidget *status_label;
  17     GtkButton *start_stop_button, *save_button;
  18     gboolean tracking_is_on;
  19     FILE *outf_p;
  20     gchar *working_dir;
  21     gchar *intermediate_gpx_data_filename;
  22 } AppData;
  23
  24 static gchar * interface_file_chooser (AppData * appdata, GtkFileChooserAction action)
  25 {
  26     GtkWidget *dialog;
  27     gchar *filename = NULL;
  28     gchar tmpname[PATH_MAX];
  29     time_t t;
  30     struct tm *tmp;
  31
  32     t = time(NULL);
  33     tmp = localtime(&t);
  34     strftime(tmpname, sizeof(tmpname), "gps-tracker-%F-%H-%M.gpx", tmp);
  35     dialog = hildon_file_chooser_dialog_new (GTK_WINDOW (appdata->window), action);
  36     gtk_widget_show_all (GTK_WIDGET (dialog));
  37     gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER (dialog), tmpname);
  38     gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), appdata->working_dir);
  39
  40     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
  41         filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
  42     }
  43
  44     gtk_widget_destroy(dialog);
  45     return filename;
  46 }
  47
  48 static void write_gpx_header(FILE *fp)
  49 {
  50   g_return_if_fail(fp);
  51   fprintf(fp,
  52       "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  53       "<gpx version=\"1.0\"\n"
  54       "creator=\"convert2gpx.pl http://www.tangogps.org\"\n"
  55       "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
  56       "xmlns=\"http://www.topografix.com/GPX/1/0\"\n"
  57       "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n"
  58       "<trk>\n<trkseg>\n"
  59       );
  60 }
  61
  62 static void write_gpx_footer(FILE *fp)
  63 {
  64   g_return_if_fail(fp);
  65   fprintf(fp, "</trkseg>\n</trk>\n</gpx>\n");
  66 }
  67
  68 static void cb_start_stop (GtkWidget * w, AppData * data)
  69 {
  70   data->tracking_is_on = !data->tracking_is_on;
  71   if(data->tracking_is_on) { /* START pressed */
  72     data->outf_p = fopen(data->intermediate_gpx_data_filename, "w");
  73     write_gpx_header(data->outf_p);
  74     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking started");
  75     gtk_button_set_label (data->start_stop_button, "Stop");
  76     gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), FALSE);
  77   }
  78   else { /* STOP pressed */
  79     if(data->outf_p) {
  80       write_gpx_footer(data->outf_p);
  81       fclose(data->outf_p);
  82       data->outf_p = NULL;
  83     }
  84     gtk_button_set_label (data->start_stop_button, "Start");
  85     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking stopped");
  86     gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), TRUE);
  87   }
  88 }
  89
  90 static void cb_file_save (GtkWidget * w, AppData * data)
  91 {
  92     gchar *filename = NULL;
  93     filename = interface_file_chooser (data, GTK_FILE_CHOOSER_ACTION_SAVE);
  94
  95     if (filename) {
  96       if(g_file_test(data->intermediate_gpx_data_filename, G_FILE_TEST_IS_REGULAR | G_FILE_TEST_EXISTS)) {
  97         g_rename(data->intermediate_gpx_data_filename, filename);
  98         g_print ("File saved as %s\n", filename);
  99         hildon_banner_show_information(GTK_WIDGET(data->window), NULL, filename);
 100       }
 101       else {
 102         hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Temp file not found");
 103       }
 104     }
 105     g_free(filename);
 106 }
 107
 108 static void
 109 on_gps_device_changed (LocationGPSDevice *device, gpointer data)
 110 {
 111   AppData *app_data = data;
 112   GtkLabel *info = (GtkLabel*)app_data->status_label;
 113   GString *msg;
 114         if (!device)
 115                 return;
 116
 117   msg = g_string_sized_new (512);
 118         if (device->fix) {
 119                 if (device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) {
 120                         g_print ("time = %f\n", device->fix->time);
 121       g_string_append_printf(msg, "time = %f\n", device->fix->time);
 122     }
 123
 124                 if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET) {
 125                         g_print ("lat = %f, long = %f\n",
 126                                         device->fix->latitude,
 127                                         device->fix->longitude);
 128                         g_string_append_printf (msg, "lat = %f, long = %f\n",
 129                                         device->fix->latitude,
 130                                         device->fix->longitude);
 131     }
 132
 133                 if (device->fix->fields & LOCATION_GPS_DEVICE_ALTITUDE_SET) {
 134                         g_print ("alt = %f\n", device->fix->altitude);
 135                         g_string_append_printf (msg, "alt = %f\n", device->fix->altitude);
 136     }
 137
 138                 if (device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
 139                         g_print ("speed = %f\n", device->fix->speed);
 140                         g_string_append_printf (msg, "speed = %f, ", device->fix->speed);
 141     }
 142
 143                 if (device->fix->fields & LOCATION_GPS_DEVICE_TRACK_SET) {
 144                         g_print ("track = %f\n", device->fix->track);
 145                         g_string_append_printf (msg, "track = %f, ", device->fix->track);
 146     }
 147
 148                 if (device->fix->fields & LOCATION_GPS_DEVICE_CLIMB_SET) {
 149                         g_print ("climb = %f\n", device->fix->climb);
 150                         g_string_append_printf (msg, "climb = %f\n", device->fix->climb);
 151     }
 152
 153                 g_print ("Accuracy values:\n");
 154                 g_print ("\tept = %e, eph = %e, epv = %e, epd = %e, "
 155                                 "eps = %e, epc = %e\n",
 156                                 device->fix->ept,
 157                                 device->fix->eph,
 158                                 device->fix->epv,
 159                                 device->fix->epd,
 160                                 device->fix->eps,
 161                                 device->fix->epc);
 162         }
 163
 164         g_print ("Satellites in view: %d\n", device->satellites_in_view);
 165         g_print ("Satellites in use: %d\n", device->satellites_in_use);
 166   g_string_append_printf (msg, "Satellites = % 2d/% 2d\n", device->satellites_in_use, device->satellites_in_view);
 167         g_print ("GPS status: %d\n", device->status);
 168         g_string_append_printf (msg, "GPS status: %d\n", device->status);
 169
 170   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(app_data->window), device->status == LOCATION_GPS_DEVICE_STATUS_NO_FIX);
 171
 172
 173         if (device->cell_info) {
 174                 if (device->cell_info->flags & LOCATION_CELL_INFO_GSM_CELL_INFO_SET)
 175                         g_print ("Mobile Coutry Code GSM: %d\n", device->cell_info->gsm_cell_info.mcc);
 176
 177                 if (device->cell_info->flags & LOCATION_CELL_INFO_WCDMA_CELL_INFO_SET)
 178                         g_print ("Mobile Coutry Code WCDMA: %d\n", device->cell_info->wcdma_cell_info.mcc);
 179         }
 180
 181   gtk_label_set_text(info, msg->str);
 182   if(device->status != LOCATION_GPS_DEVICE_STATUS_NO_FIX)
 183     gtk_widget_set_sensitive(GTK_WIDGET(app_data->start_stop_button), TRUE);
 184   //gtk_widget_show(GTK_WIDGET(info));
 185   g_string_free(msg, TRUE);
 186 }
 187
 188 static void
 189 on_gps_error (LocationGPSDevice *device, gpointer data)
 190 {
 191   //AppData *app_data = data;
 192         g_error ("GPS error");
 193 }
 194
 195 static void
 196 on_gps_stop (LocationGPSDevice *device, gpointer data)
 197 {
 198   AppData *app_data = data;
 199   const gchar *msg = "GPS stopped";
 200   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 201         g_warning (msg);
 202 }
 203
 204 static void
 205 on_gps_start (LocationGPSDevice *device, gpointer data)
 206 {
 207   AppData *app_data = data;
 208   const gchar *msg = "GPS started";
 209   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 210         g_warning (msg);
 211 }
 212
 213 int main (int argc, char **argv)
 214 {
 215   AppData * data = g_new0 (AppData, 1);
 216
 217         hildon_gtk_init (&argc, &argv);
 218         LocationGPSDControl *control;
 219         LocationGPSDevice *device;
 220
 221   data->working_dir = g_strdup_printf("%s" G_DIR_SEPARATOR_S "MyDocs", g_get_home_dir());
 222   data->intermediate_gpx_data_filename = g_strdup_printf("%s" G_DIR_SEPARATOR_S ".gps-tracker.gpx", data->working_dir);
 223         data->program = hildon_program_get_instance ();
 224         g_set_application_name("GPS tracker");
 225
 226         data->window = HILDON_WINDOW(hildon_stackable_window_new ());
 227         hildon_program_add_window (data->program, HILDON_WINDOW (data->window));
 228
 229   data->main_vbox = (void*)gtk_vbox_new(FALSE, 0);
 230   data->btn_hbox = (void*)gtk_hbox_new(TRUE, 0);
 231
 232   data->start_stop_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 233   gtk_button_set_label (data->start_stop_button, "Start");
 234   gtk_widget_set_sensitive(GTK_WIDGET(data->start_stop_button), FALSE);
 235   data->save_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 236   gtk_button_set_label (data->save_button, "Save");
 237   gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), FALSE);
 238   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->start_stop_button), FALSE, FALSE, 8);
 239   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->save_button), FALSE, FALSE, 8);
 240   gtk_box_pack_start(GTK_BOX(data->main_vbox), GTK_WIDGET(data->btn_hbox), FALSE, FALSE, 0);
 241   data->status_label = gtk_label_new("Waiting for GPS ...");
 242   gtk_box_pack_start_defaults(GTK_BOX(data->main_vbox), data->status_label);
 243         /* Add vbox to main window */
 244         gtk_container_add (GTK_CONTAINER (data->window), GTK_WIDGET(data->main_vbox));
 245
 246   g_signal_connect (G_OBJECT (data->save_button), "clicked", G_CALLBACK (cb_file_save), data);
 247   g_signal_connect (G_OBJECT (data->start_stop_button), "clicked", G_CALLBACK (cb_start_stop), data);
 248         g_signal_connect (G_OBJECT (data->window), "destroy",
 249                         G_CALLBACK (gtk_main_quit), NULL);
 250
 251         control = location_gpsd_control_get_default ();
 252   location_gpsd_control_start (control);
 253
 254         /*
 255          * Note that in real life one may want to use some other method and interval
 256          * than LOCATION_METHOD_USER_SELECTED and LOCATION_INTERVAL_DEFAULT,
 257          * respectively. For more information on possible values for these parameters
 258          * please see liblocation online documentation.
 259          */
 260         g_object_set (G_OBJECT (control),
 261                         "preferred-method", LOCATION_METHOD_USER_SELECTED,
 262                         "preferred-interval", LOCATION_INTERVAL_DEFAULT,
 263                         NULL);
 264
 265         device  = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
 266
 267         g_signal_connect (control, "error",             G_CALLBACK (on_gps_error),              data);
 268         g_signal_connect (control, "gpsd-running",      G_CALLBACK (on_gps_start),              data);
 269         g_signal_connect (control, "gpsd-stopped",      G_CALLBACK (on_gps_stop),               data);
 270         g_signal_connect (device,  "changed",           G_CALLBACK (on_gps_device_changed),     data);
 271
 272         gtk_widget_show_all (GTK_WIDGET (data->window));
 273
 274   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(data->window), 1);
 275         gtk_main ();
 276
 277   location_gpsd_control_stop (control);
 278
 279   if(data->outf_p)
 280     fclose(data->outf_p);
 281   g_unlink(data->intermediate_gpx_data_filename);
 282         g_object_unref (device);
 283         g_object_unref (control);
 284   g_free(data->working_dir);
 285   g_free(data->intermediate_gpx_data_filename);
 286   g_free(data);
 287
 288         return 0;
 289 }