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     GtkWidget *wp_hbox, *wp_label, *wp_name_entry;
  19     //GtkWidget *wp_label;
  20     GtkButton *wp_set_btn;
  21     GString *wp_marker_str;
  22     gboolean tracking_is_on;
  23     FILE *outf_p;
  24     gchar *working_dir;
  25     gchar *intermediate_gpx_data_filename;
  26 } AppData;
  27
  28 static gchar * interface_file_chooser (AppData * appdata, GtkFileChooserAction action)
  29 {
  30     GtkWidget *dialog;
  31     gchar *filename = NULL;
  32     gchar tmpname[PATH_MAX];
  33     time_t t;
  34     struct tm *tmp;
  35
  36     t = time(NULL);
  37     tmp = localtime(&t);
  38     strftime(tmpname, sizeof(tmpname), "gps-tracker-%Y%m%d_%H%M%S.gpx", tmp);
  39     dialog = hildon_file_chooser_dialog_new (GTK_WINDOW (appdata->window), action);
  40     gtk_widget_show_all (GTK_WIDGET (dialog));
  41     gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER (dialog), tmpname);
  42     gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), appdata->working_dir);
  43
  44     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
  45         filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
  46     }
  47
  48     gtk_widget_destroy(dialog);
  49     return filename;
  50 }
  51
  52 static void write_gpx_header(FILE *fp)
  53 {
  54   g_return_if_fail(fp);
  55   g_fprintf(fp,
  56       "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  57       "<gpx version=\"1.0\"\n"
  58       "creator=\"GPS tracker for Maemo\"\n"
  59       "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
  60       "xmlns=\"http://www.topografix.com/GPX/1/0\"\n"
  61       "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n"
  62       "<trk>\n<trkseg>\n"
  63       );
  64 }
  65
  66 static void write_gpx_footer(FILE *fp)
  67 {
  68   g_return_if_fail(fp);
  69   g_fprintf(fp, "</trkseg>\n</trk>\n</gpx>\n");
  70 }
  71
  72 static void cb_wp_set_btn (GtkWidget * w, AppData * data)
  73 {
  74   HildonEntry *entry = (HildonEntry*)data->wp_name_entry;
  75   const gchar *marker_name = hildon_entry_get_text(entry);
  76   if(marker_name[0]) {
  77     g_string_assign(data->wp_marker_str, marker_name);
  78     //hildon_banner_show_information(GTK_WIDGET(data->window), NULL, data->wp_marker_str->str);
  79     hildon_entry_set_text(entry, "");
  80   }
  81   else {
  82     g_string_truncate(data->wp_marker_str, 0);
  83     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "WARNING: no marker name given");
  84   }
  85 }
  86
  87 static void cb_start_stop (GtkWidget * w, AppData * data)
  88 {
  89   data->tracking_is_on = !data->tracking_is_on;
  90   if(data->tracking_is_on) { /* START pressed */
  91     data->outf_p = fopen(data->intermediate_gpx_data_filename, "w");
  92     write_gpx_header(data->outf_p);
  93     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking started");
  94     gtk_button_set_label (data->start_stop_button, "Stop");
  95     gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), FALSE);
  96     gtk_widget_set_sensitive(GTK_WIDGET(data->wp_set_btn), TRUE);
  97   }
  98   else { /* STOP pressed */
  99     if(data->outf_p) {
 100       write_gpx_footer(data->outf_p);
 101       fclose(data->outf_p);
 102       data->outf_p = NULL;
 103     }
 104     gtk_button_set_label (data->start_stop_button, "Start");
 105     hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking stopped");
 106     gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), TRUE);
 107     gtk_widget_set_sensitive(GTK_WIDGET(data->wp_set_btn), FALSE);
 108   }
 109   g_string_truncate(data->wp_marker_str, 0);
 110 }
 111
 112 static void cb_file_save (GtkWidget * w, AppData * data)
 113 {
 114     gchar *filename = NULL;
 115     filename = interface_file_chooser (data, GTK_FILE_CHOOSER_ACTION_SAVE);
 116
 117     if (filename) {
 118       if(g_file_test(data->intermediate_gpx_data_filename, G_FILE_TEST_IS_REGULAR | G_FILE_TEST_EXISTS)) {
 119         g_rename(data->intermediate_gpx_data_filename, filename);
 120         //g_print ("File saved as %s\n", filename);
 121         hildon_banner_show_information(GTK_WIDGET(data->window), NULL, filename);
 122       }
 123       else {
 124         hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Temp file not found");
 125       }
 126     }
 127     g_free(filename);
 128 }
 129
 130 static void
 131 on_gps_device_changed (LocationGPSDevice *device, gpointer data)
 132 {
 133   AppData *app_data = data;
 134   GtkLabel *info = (GtkLabel*)app_data->status_label;
 135   GString *msg;
 136   FILE *fp = app_data->outf_p;
 137   gchar sbuf1[G_ASCII_DTOSTR_BUF_SIZE], sbuf2[G_ASCII_DTOSTR_BUF_SIZE];
 138         if (!device)
 139                 return;
 140
 141   msg = g_string_sized_new (512);
 142   if (device->fix && device->status) {
 143     if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET) {
 144       //g_print ("lat = %f, long = %f\n", device->fix->latitude, device->fix->longitude);
 145       g_string_append_printf (msg, "lat = %f, long = %f\n",
 146           device->fix->latitude,
 147           device->fix->longitude);
 148       if(fp) {
 149         g_fprintf(fp, "\n<trkpt lat=\"%s\" lon=\"%s\">\n",
 150           g_ascii_formatd(sbuf1, sizeof(sbuf1), "%f", device->fix->latitude),
 151           g_ascii_formatd(sbuf2, sizeof(sbuf2), "%f", device->fix->longitude));
 152         if(app_data->wp_marker_str->len) {
 153           g_fprintf(fp, "<name>%s</name>\n", app_data->wp_marker_str->str);
 154           hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, app_data->wp_marker_str->str);
 155           g_string_truncate(app_data->wp_marker_str, 0);
 156         }
 157       }
 158
 159       if (device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) {
 160         //g_print ("time = %f\n", device->fix->time);
 161         g_string_append_printf(msg, "time = %F\n", device->fix->time);
 162         if(fp) {
 163           gchar st[64];
 164           struct tm *tmp;
 165           time_t t = device->fix->time;
 166           tmp = localtime(&t);
 167           strftime(st, sizeof(st), "%FT%T%Z", tmp);
 168           /* FIXME Is this really correct */
 169           g_fprintf(fp, "<time>%s</time>\n", st);
 170         }
 171       }
 172       if(fp) {
 173         if(device->fix->mode == LOCATION_GPS_DEVICE_MODE_2D)
 174           g_fprintf(fp, "<fix>2d</fix>\n");
 175         else if(device->fix->mode == LOCATION_GPS_DEVICE_MODE_3D)
 176           g_fprintf(fp, "<fix>3d</fix>\n");
 177         g_fprintf(fp, "<sat>%d</sat>\n", device->satellites_in_use);
 178       }
 179
 180       if (device->fix->fields & LOCATION_GPS_DEVICE_ALTITUDE_SET) {
 181         //g_print ("alt = %f\n", device->fix->altitude);
 182         g_string_append_printf (msg, "alt = %f\n", device->fix->altitude);
 183         if(fp)
 184           g_fprintf(fp, "<ele>%s</ele>\n", g_ascii_formatd(sbuf1, sizeof(sbuf1), "%f", device->fix->altitude));
 185
 186       }
 187
 188       if (device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
 189         //g_print ("speed = %f\n", device->fix->speed);
 190         g_string_append_printf (msg, "speed = %f, ", device->fix->speed);
 191         if(fp)
 192           g_fprintf(fp, "<speed>%s</speed>\n", g_ascii_formatd(sbuf1, sizeof(sbuf1), "%f", device->fix->speed));
 193       }
 194
 195       if (device->fix->fields & LOCATION_GPS_DEVICE_TRACK_SET) {
 196         //g_print ("track = %f\n", device->fix->track);
 197         g_string_append_printf (msg, "track = %f, ", device->fix->track);
 198         if(fp)
 199           g_fprintf(fp, "<course>%s</course>\n", g_ascii_formatd(sbuf1, sizeof(sbuf1), "%f", device->fix->track));
 200       }
 201
 202       if (device->fix->fields & LOCATION_GPS_DEVICE_CLIMB_SET) {
 203         //g_print ("climb = %f\n", device->fix->climb);
 204         g_string_append_printf (msg, "climb = %f\n", device->fix->climb);
 205       }
 206
 207       //g_print ("Accuracy values:\n");
 208       //g_print ("\tept = %e, eph = %e, epv = %e, epd = %e, "
 209       //    "eps = %e, epc = %e\n",
 210       //    device->fix->ept,
 211       //    device->fix->eph,
 212       //    device->fix->epv,
 213       //    device->fix->epd,
 214       //    device->fix->eps,
 215       //    device->fix->epc);
 216       if(fp) {
 217         g_fprintf(fp, "<hdop>%s</hdop>\n<vdop>%s</vdop>\n",
 218             g_ascii_formatd(sbuf1, sizeof(sbuf1), "%.1f", device->fix->eph / 100.0),
 219             g_ascii_formatd(sbuf2, sizeof(sbuf2), "%.1f", device->fix->epv));
 220         g_fprintf(fp, "</trkpt>\n");
 221       }
 222     }
 223   }
 224
 225         //g_print ("Satellites in view: %d\n", device->satellites_in_view);
 226         //g_print ("Satellites in use: %d\n", device->satellites_in_use);
 227   g_string_append_printf (msg, "Satellites = % 2d/% 2d\n", device->satellites_in_use, device->satellites_in_view);
 228         //g_print ("GPS status: %d\n", device->status);
 229         g_string_append_printf (msg, "GPS status: %d\n", device->status);
 230
 231   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(app_data->window), device->status == LOCATION_GPS_DEVICE_STATUS_NO_FIX);
 232
 233
 234         //if (device->cell_info) {
 235         //      if (device->cell_info->flags & LOCATION_CELL_INFO_GSM_CELL_INFO_SET)
 236         //              g_print ("Mobile Coutry Code GSM: %d\n", device->cell_info->gsm_cell_info.mcc);
 237
 238         //      if (device->cell_info->flags & LOCATION_CELL_INFO_WCDMA_CELL_INFO_SET)
 239         //              g_print ("Mobile Coutry Code WCDMA: %d\n", device->cell_info->wcdma_cell_info.mcc);
 240         //}
 241
 242   gtk_label_set_text(info, msg->str);
 243   if(device->status != LOCATION_GPS_DEVICE_STATUS_NO_FIX)
 244     gtk_widget_set_sensitive(GTK_WIDGET(app_data->start_stop_button), TRUE);
 245   //gtk_widget_show(GTK_WIDGET(info));
 246   g_string_free(msg, TRUE);
 247 }
 248
 249 static void
 250 on_gps_error (LocationGPSDevice *device, gpointer data)
 251 {
 252   //AppData *app_data = data;
 253         g_error ("GPS error");
 254 }
 255
 256 static void
 257 on_gps_stop (LocationGPSDevice *device, gpointer data)
 258 {
 259   AppData *app_data = data;
 260   const gchar *msg = "GPS stopped";
 261   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 262         g_warning (msg);
 263 }
 264
 265 static void
 266 on_gps_start (LocationGPSDevice *device, gpointer data)
 267 {
 268   AppData *app_data = data;
 269   const gchar *msg = "GPS started";
 270   hildon_banner_show_information(GTK_WIDGET(app_data->window), NULL, msg);
 271         g_warning (msg);
 272 }
 273
 274 int main (int argc, char **argv)
 275 {
 276   AppData * data = g_new0 (AppData, 1);
 277
 278         hildon_gtk_init (&argc, &argv);
 279         LocationGPSDControl *control;
 280         LocationGPSDevice *device;
 281
 282   data->working_dir = g_strdup_printf("%s" G_DIR_SEPARATOR_S "MyDocs", g_get_home_dir());
 283   data->intermediate_gpx_data_filename = g_strdup_printf("%s" G_DIR_SEPARATOR_S ".gps-tracker.gpx", data->working_dir);
 284         data->program = hildon_program_get_instance ();
 285         g_set_application_name("GPS tracker");
 286
 287         data->window = HILDON_WINDOW(hildon_stackable_window_new());
 288         hildon_program_add_window (data->program, HILDON_WINDOW (data->window));
 289
 290   data->wp_marker_str = g_string_sized_new(64);
 291   data->main_vbox = (void*)gtk_vbox_new(FALSE, 0);
 292   data->btn_hbox = (void*)gtk_hbox_new(TRUE, 0);
 293
 294   data->start_stop_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 295   gtk_button_set_label (data->start_stop_button, "Start");
 296   gtk_widget_set_sensitive(GTK_WIDGET(data->start_stop_button), FALSE);
 297   data->save_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 298   gtk_button_set_label (data->save_button, "Save");
 299   gtk_widget_set_sensitive(GTK_WIDGET(data->save_button), FALSE);
 300   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->start_stop_button), FALSE, FALSE, 8);
 301   gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->save_button), FALSE, FALSE, 8);
 302   gtk_box_pack_start(GTK_BOX(data->main_vbox), GTK_WIDGET(data->btn_hbox), FALSE, FALSE, 0);
 303   data->status_label = gtk_label_new("Waiting for GPS ...");
 304   gtk_box_pack_start_defaults(GTK_BOX(data->main_vbox), data->status_label);
 305
 306   data->wp_hbox = (void*)gtk_hbox_new(TRUE, 0);
 307   //data->wp_label = gtk_label_new("Marker:");
 308   data->wp_name_entry = hildon_entry_new (HILDON_SIZE_HALFSCREEN_WIDTH);
 309   //hildon_entry_set_placeholder (HILDON_ENTRY (data->wp_name_entry), "First name");
 310   data->wp_set_btn = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
 311   gtk_button_set_label (data->wp_set_btn, "Set marker");
 312   gtk_widget_set_sensitive(GTK_WIDGET(data->wp_set_btn), FALSE);
 313   //gtk_box_pack_start(GTK_BOX(data->wp_hbox), GTK_WIDGET(data->wp_label), TRUE, FALSE, 0);
 314   gtk_box_pack_start(GTK_BOX(data->wp_hbox), GTK_WIDGET(data->wp_name_entry), TRUE, FALSE, 0);
 315   gtk_box_pack_start(GTK_BOX(data->wp_hbox), GTK_WIDGET(data->wp_set_btn), TRUE, FALSE, 0);
 316   gtk_box_pack_end(GTK_BOX(data->main_vbox), GTK_WIDGET(data->wp_hbox), FALSE, FALSE, 0);
 317
 318         /* Add vbox to main window */
 319         gtk_container_add (GTK_CONTAINER (data->window), GTK_WIDGET(data->main_vbox));
 320
 321   g_signal_connect (G_OBJECT (data->save_button), "clicked", G_CALLBACK (cb_file_save), data);
 322   g_signal_connect (G_OBJECT (data->start_stop_button), "clicked", G_CALLBACK (cb_start_stop), data);
 323   g_signal_connect (G_OBJECT (data->wp_set_btn), "clicked", G_CALLBACK (cb_wp_set_btn), data);
 324         g_signal_connect (G_OBJECT (data->window), "destroy",
 325                         G_CALLBACK (gtk_main_quit), NULL);
 326
 327         control = location_gpsd_control_get_default ();
 328   location_gpsd_control_start (control);
 329
 330         /*
 331          * Note that in real life one may want to use some other method and interval
 332          * than LOCATION_METHOD_USER_SELECTED and LOCATION_INTERVAL_DEFAULT,
 333          * respectively. For more information on possible values for these parameters
 334          * please see liblocation online documentation.
 335          */
 336         g_object_set (G_OBJECT (control),
 337                         "preferred-method", LOCATION_METHOD_USER_SELECTED,
 338                         "preferred-interval", LOCATION_INTERVAL_DEFAULT,
 339                         NULL);
 340
 341         device  = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
 342
 343         g_signal_connect (control, "error",             G_CALLBACK (on_gps_error),              data);
 344         g_signal_connect (control, "gpsd-running",      G_CALLBACK (on_gps_start),              data);
 345         g_signal_connect (control, "gpsd-stopped",      G_CALLBACK (on_gps_stop),               data);
 346         g_signal_connect (device,  "changed",           G_CALLBACK (on_gps_device_changed),     data);
 347
 348         gtk_widget_show_all (GTK_WIDGET (data->window));
 349
 350   hildon_gtk_window_set_progress_indicator(GTK_WINDOW(data->window), 1);
 351         gtk_main ();
 352
 353   location_gpsd_control_stop (control);
 354
 355   if(data->outf_p)
 356     fclose(data->outf_p);
 357   g_unlink(data->intermediate_gpx_data_filename);
 358   g_free(data->working_dir);
 359   g_free(data->intermediate_gpx_data_filename);
 360   g_string_free(data->wp_marker_str, TRUE);
 361   g_free(data);
 362         g_object_unref (device);
 363         g_object_unref (control);
 364
 365         return 0;
 366 }