git.maemo.org Git - belltower/blob - belltower.c

   1 /*
   2  * belltower
   3  * an app to find belltowers under Maemo 5
   4  *
   5  * Copyright (c) 2009 Thomas Thurman <tthurman@gnome.org>
   6  * Released under the GPL
   7  */
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <glib.h>
  13 #include <hildon/hildon.h>
  14 #include <gtk/gtk.h>
  15 #include <location/location-gps-device.h>
  16 #include <dbus/dbus-glib.h>
  17
  18 #define MAX_FIELDS 50
  19
  20 GtkWidget *window;
  21
  22 typedef enum {
  23   /** stop scanning the database */
  24   FILTER_STOP,
  25   /** ignore this one */
  26   FILTER_PASS,
  27   /** add this one to the list */
  28   FILTER_ACCEPT
  29 } FilterResult;
  30
  31 /*
  32   FIXME:
  33   We should really do this by looking at the header row of the table.
  34   They might decide to put in new columns some day.
  35 */
  36 typedef enum {
  37   FieldPrimaryKey,
  38   FieldNationalGrid,
  39   FieldAccRef,
  40   FieldSNLat,
  41   FieldSNLong,
  42   FieldPostcode,
  43   FieldTowerBase,
  44   FieldCounty,
  45   FieldCountry,
  46   FieldDiocese,
  47   FieldPlace,
  48   FieldPlace2,
  49   FieldPlaceCL,
  50   FieldDedication,
  51   FieldBells,
  52   FieldWt,
  53   FieldApp,
  54   FieldNote,
  55   FieldHz,
  56   FieldDetails,
  57   FieldGF,
  58   FieldToilet,
  59   FieldUR,
  60   FieldPDNo,
  61   FieldPracticeNight,
  62   FieldPSt,
  63   FieldPrXF,
  64   FieldOvhaulYr,
  65   FieldContractor,
  66   FieldExtraInfo,
  67   FieldWebPage,
  68   FieldUpdated,
  69   FieldAffiliations,
  70   FieldAltName,
  71   FieldLat,
  72   FieldLong,
  73   FieldSimulator
  74 } field;
  75
  76 typedef struct {
  77   int serial;
  78
  79   /* the raw data */
  80
  81   char* fields[MAX_FIELDS];
  82   int n_fields;
  83 } tower;
  84
  85 /*
  86  * we're going to pretend you're in Helsinki
  87  * until I get the GPS working
  88  */
  89 double current_lat = 60.161790;
  90 double current_long = 23.924902;
  91
  92 static void
  93 show_message (char *message)
  94 {
  95   HildonNote* note = HILDON_NOTE
  96     (hildon_note_new_information (GTK_WINDOW (window),
  97                                   message?message:
  98                                   "Some message was supposed to be here."));
  99   gtk_dialog_run (GTK_DIALOG (note));
 100   gtk_widget_destroy (GTK_WIDGET (note));
 101 }
 102
 103 static gchar*
 104 distance_to_tower (tower *details)
 105 {
 106   char *endptr;
 107   double tower_lat;
 108   double tower_long;
 109   double km_distance;
 110   const double km_to_miles = 1.609344;
 111
 112   tower_lat = strtod(details->fields[FieldLat], &endptr);
 113   if (*endptr) return g_strdup ("unknown");
 114   tower_long = strtod(details->fields[FieldLong], &endptr);
 115   if (*endptr) return g_strdup ("unknown");
 116
 117   km_distance = location_distance_between (current_lat,
 118                                            current_long,
 119                                            tower_lat,
 120                                            tower_long);
 121
 122   return g_strdup_printf("%dmi", (int) (km_distance / km_to_miles));
 123 }
 124
 125 static void
 126 call_dbus (DBusBusType type,
 127            char *name,
 128            char *path,
 129            char *interface,
 130            char *method,
 131            char *parameter)
 132 {
 133   DBusGConnection *connection;
 134   GError *error = NULL;
 135
 136   DBusGProxy *proxy;
 137
 138   connection = dbus_g_bus_get (type,
 139                                &error);
 140   if (connection == NULL)
 141     {
 142       show_message (error->message);
 143       g_error_free (error);
 144       return;
 145     }
 146
 147   proxy = dbus_g_proxy_new_for_name (connection, name, path, interface);
 148
 149   error = NULL;
 150   if (!dbus_g_proxy_call (proxy, method, &error,
 151                           G_TYPE_STRING, parameter,
 152                           G_TYPE_INVALID,
 153                           G_TYPE_INVALID))
 154     {
 155       show_message (error->message);
 156       g_error_free (error);
 157     }
 158 }
 159
 160 static void
 161 show_browser (gchar *url)
 162 {
 163   call_dbus (DBUS_BUS_SESSION,
 164              "com.nokia.osso_browser",
 165              "/com/nokia/osso_browser/request",
 166              "com.nokia.osso_browser",
 167              "load_url",
 168              url);
 169 }
 170
 171 typedef gboolean (*ParseDoveCallback)(tower *details, gpointer data);
 172 typedef void (*ButtonCallback)(void);
 173
 174 GtkWidget *tower_window, *buttons, *tower_table;
 175 HildonAppMenu *menu;
 176
 177 static void
 178 add_table_field (char *name,
 179                  char *value)
 180 {
 181   int row;
 182   GtkLabel *label;
 183   gchar *str;
 184
 185   g_object_get(tower_table, "n-rows", &row);
 186
 187   row++;
 188
 189   gtk_table_resize (GTK_TABLE (tower_table), row, 2);
 190
 191   label = GTK_LABEL (gtk_label_new (NULL));
 192   str = g_strdup_printf("<b>%s</b>", name);
 193   gtk_label_set_markup (label, str);
 194   g_free (str);
 195   gtk_label_set_justify (label, GTK_JUSTIFY_RIGHT);
 196   gtk_table_attach_defaults (GTK_TABLE (tower_table),
 197                              GTK_WIDGET (label),
 198                              0, 1, row, row+1);
 199
 200   label = GTK_LABEL (gtk_label_new (value));
 201   gtk_label_set_justify (label, GTK_JUSTIFY_LEFT);
 202   gtk_table_attach_defaults (GTK_TABLE (tower_table),
 203                              GTK_WIDGET (label),
 204                              1, 2, row, row+1);
 205 }
 206
 207 static void
 208 add_button (char *label,
 209             ButtonCallback callback)
 210 {
 211   GtkWidget *button;
 212
 213   button = gtk_button_new_with_label (label);
 214   g_signal_connect (button, "clicked", G_CALLBACK (callback), NULL);
 215   hildon_app_menu_append (menu, GTK_BUTTON (button));
 216   button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
 217                                         HILDON_BUTTON_ARRANGEMENT_VERTICAL,
 218                                         label, NULL);
 219   g_signal_connect (button, "clicked", G_CALLBACK (callback), NULL);
 220   gtk_box_pack_end (GTK_BOX (buttons), button, FALSE, FALSE, 0);
 221 }
 222
 223
 224 static void
 225 bookmark_toggled (GtkButton *button,
 226                   gpointer dummy)
 227 {
 228   show_message ("Bookmarks are not yet implemented.");
 229 }
 230
 231 char *tower_website = NULL;
 232 char *tower_map = NULL;
 233 char *tower_directions = NULL;
 234 char *peals_list = NULL;
 235
 236 static void
 237 show_tower_website (void)
 238 {
 239   show_browser (tower_website);
 240 }
 241
 242 static void
 243 show_tower_map (void)
 244 {
 245   show_browser (tower_map);
 246 }
 247
 248 static void
 249 show_peals_list (void)
 250 {
 251   show_browser (peals_list);
 252 }
 253
 254 static gboolean
 255 get_countries_cb (tower *details,
 256                   gpointer data)
 257 {
 258   GHashTable *hash = (GHashTable *)data;
 259
 260   if (details->serial==0)
 261     return TRUE; /* header row */
 262
 263   if (!g_hash_table_lookup_extended (hash,
 264                                     details->fields[FieldCountry],
 265                                      NULL, NULL))
 266     {
 267       g_hash_table_insert (hash,
 268                            g_strdup(details->fields[FieldCountry]),
 269                            g_strdup (details->fields[FieldCountry]));
 270     }
 271
 272   return FILTER_PASS;
 273 }
 274
 275 typedef struct {
 276   GHashTable *hash;
 277   gchar *country_name;
 278 } country_cb_data;
 279
 280 static gboolean
 281 get_counties_cb (tower *details,
 282                  gpointer data)
 283 {
 284   country_cb_data *d = (country_cb_data *)data;
 285
 286   if (details->serial==0)
 287     return FILTER_PASS; /* header row */
 288
 289   if (strcmp(details->fields[FieldCountry], d->country_name)!=0)
 290     return FILTER_PASS; /* wrong country */
 291
 292   if (!g_hash_table_lookup_extended (d->hash,
 293                                     details->fields[FieldCounty],
 294                                      NULL, NULL))
 295     {
 296       g_hash_table_insert (d->hash,
 297                            g_strdup(details->fields[FieldCounty]),
 298                            g_strdup (details->fields[FieldCounty]));
 299     }
 300
 301   return FILTER_PASS;
 302 }
 303
 304 static gboolean
 305 single_tower_cb (tower *details,
 306                  gpointer data)
 307 {
 308
 309   GtkWidget *hbox, *button;
 310   gchar *str;
 311   gint tenor_weight;
 312   gchar *primary_key = (gchar*) data;
 313   gchar *miles;
 314
 315   if (strcmp(details->fields[FieldPrimaryKey], primary_key)!=0)
 316     {
 317       /* not this one; keep going */
 318       return FILTER_PASS;
 319     }
 320
 321   tower_window = hildon_stackable_window_new ();
 322
 323   if (g_str_has_prefix (details->fields[FieldDedication],
 324                         "S "))
 325     {
 326       /* FIXME: This needs to be cleverer, because we can have
 327        * e.g. "S Peter and S Paul".
 328        * May have to use regexps.
 329        * Reallocation in general even when unchanged is okay,
 330        * because it's the common case (most towers are S Something)
 331        */
 332
 333       /* FIXME: Since we're passing this in as markup,
 334        * we need to escape the strings.
 335        */
 336
 337       str = g_strdup_printf("S<sup>t</sup> %s, %s",
 338                               details->fields[FieldDedication]+2,
 339                               details->fields[FieldPlace]);
 340
 341     }
 342   else
 343     {
 344       str = g_strdup_printf("%s, %s",
 345                               details->fields[FieldDedication],
 346                               details->fields[FieldPlace]);
 347     }
 348
 349   hildon_window_set_markup (HILDON_WINDOW (tower_window),
 350                             str);
 351   g_free (str);
 352
 353   hbox = gtk_hbox_new (FALSE, 0);
 354   tower_table = gtk_table_new (0, 2, FALSE);
 355   buttons = gtk_vbox_new (TRUE, 0);
 356   menu = HILDON_APP_MENU (hildon_app_menu_new ());
 357
 358   miles = distance_to_tower(details);
 359
 360   add_table_field ("Distance", miles);
 361   add_table_field ("Postcode", details->fields[FieldPostcode]);
 362   add_table_field ("County", details->fields[FieldCounty]);
 363   add_table_field ("Country", details->fields[FieldCountry]);
 364   add_table_field ("Diocese", details->fields[FieldDiocese]);
 365   add_table_field ("Practice night", details->fields[FieldPracticeNight]);
 366   add_table_field ("Bells", details->fields[FieldBells]);
 367
 368   g_free (miles);
 369
 370   tenor_weight = atoi (details->fields[FieldWt]);
 371   str = g_strdup_printf("%dcwt %dqr %dlb in %s",
 372                         tenor_weight/112,
 373                         (tenor_weight % 112)/28,
 374                         tenor_weight % 28,
 375                         details->fields[FieldNote]
 376                         );
 377   add_table_field ("Tenor", str);
 378   g_free (str);
 379
 380   add_button ("Tower website", show_tower_website);
 381   add_button ("Peals", show_peals_list);
 382   add_button ("Map", show_tower_map);
 383   add_button ("Directions", NULL);
 384
 385   /* don't use a toggle button: it looks stupid */
 386   button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
 387                                         HILDON_BUTTON_ARRANGEMENT_VERTICAL,
 388                                         "Bookmark", NULL);
 389   g_signal_connect (button, "clicked", G_CALLBACK (bookmark_toggled), NULL);
 390   gtk_box_pack_start (GTK_BOX (buttons), button, FALSE, FALSE, 0);
 391
 392   gtk_widget_show_all (GTK_WIDGET (menu));
 393   hildon_window_set_app_menu (HILDON_WINDOW (tower_window), menu);
 394
 395   gtk_box_pack_end (GTK_BOX (hbox), buttons, TRUE, TRUE, 0);
 396   gtk_box_pack_end (GTK_BOX (hbox), tower_table, TRUE, TRUE, 0);
 397
 398   gtk_container_add (GTK_CONTAINER (tower_window), hbox);
 399
 400   g_free (tower_website);
 401   tower_website = g_strdup_printf ("http://%s", details->fields[FieldWebPage]);
 402   g_free (peals_list);
 403   peals_list = g_strdup_printf ("http://www.pealbase.ismysite.co.uk/felstead/tbid.php?tid=%s",
 404        details->fields[FieldTowerBase]);
 405   g_free (tower_map);
 406   tower_map = g_strdup_printf ("http://maps.google.com/maps?q=%s,%s",
 407         details->fields[FieldLat],
 408         details->fields[FieldLong]);
 409   gtk_widget_show_all (GTK_WIDGET (tower_window));
 410
 411   return FILTER_STOP;
 412 }
 413
 414 static void
 415 parse_dove (ParseDoveCallback callback,
 416             GSList **filter_results,
 417             gpointer data)
 418 {
 419   FILE *dove = fopen("/usr/share/belltower/dove.txt", "r");
 420   char tower_rec[4096];
 421   tower result;
 422   char *i;
 423   gboolean seen_newline;
 424
 425   if (!dove)
 426     {
 427       show_message ("Cannot open Dove database!");
 428       exit (255);
 429     }
 430
 431   result.serial = 0;
 432
 433   while (fgets (tower_rec, sizeof (tower_rec), dove))
 434     {
 435       seen_newline = FALSE;
 436       result.fields[0] = tower_rec;
 437       result.n_fields = 0;
 438       for (i=tower_rec; *i; i++) {
 439         if (*i=='\n')
 440           {
 441             seen_newline = TRUE;
 442           }
 443         if (*i=='\\' || *i=='\n')
 444           {
 445             *i = 0;
 446             result.n_fields++;
 447             result.fields[result.n_fields] = i+1;
 448           }
 449       }
 450
 451       if (!seen_newline)
 452         {
 453           /* keep it simple, stupid */
 454           show_message ("Line too long, cannot continue.");
 455           exit (255);
 456         }
 457
 458       if (strcmp (result.fields[FieldCountry], "")==0)
 459         {
 460           result.fields[FieldCountry] = "England";
 461         }
 462
 463       switch (callback (&result, data))
 464         {
 465         case FILTER_PASS:
 466           /* nothing */
 467           break;
 468
 469         case FILTER_STOP:
 470           fclose (dove);
 471           return;
 472
 473         case FILTER_ACCEPT:
 474           if (filter_results)
 475             {
 476               *filter_results = g_slist_append (*filter_results,
 477                                                 result.fields[FieldPrimaryKey]);
 478             }
 479         }
 480
 481       result.serial++;
 482     }
 483
 484   fclose (dove);
 485 }
 486
 487 static void
 488 nearby_towers (void)
 489 {
 490   char buffer[4096];
 491   LocationGPSDevice *device;
 492   device = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
 493
 494   sprintf(buffer, "%f %f %x",
 495       device->fix->latitude,
 496       device->fix->longitude,
 497       device->fix->fields);
 498   show_message (buffer);
 499
 500   if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET)
 501     {
 502       show_message ("I know where you are!");
 503     }
 504   else
 505     {
 506       show_message ("I don't know where you are!");
 507     }
 508
 509   g_object_unref (device);
 510 }
 511
 512 static void
 513 show_tower (char *primary_key)
 514 {
 515   parse_dove (single_tower_cb, NULL, primary_key);
 516 }
 517
 518 static gint strcmp_f (gconstpointer a,
 519                       gconstpointer b)
 520 {
 521   return strcmp ((char*)a, (char*)b);
 522 }
 523
 524 static void
 525 put_areas_into_list (gpointer key,
 526                      gpointer value,
 527                      gpointer data)
 528 {
 529   GSList **list = (GSList **)data;
 530   *list = g_slist_insert_sorted (*list,
 531                                  value,
 532                                  strcmp_f);
 533 }
 534
 535 static void
 536 towers_by_subarea (gchar *area)
 537 {
 538   GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
 539
 540   GtkWidget *selector = hildon_touch_selector_new_text ();
 541
 542   GHashTable *hash = g_hash_table_new_full (g_str_hash,
 543                                             g_str_equal,
 544                                             g_free,
 545                                             g_free);
 546
 547   GSList *list=NULL, *cursor;
 548
 549   gchar *title = g_strdup_printf ("Areas of %s", area);
 550
 551   country_cb_data d = { hash, area };
 552
 553   gtk_window_set_title (GTK_WINDOW (dialog), title);
 554   g_free (title);
 555
 556   parse_dove (get_counties_cb, NULL, &d);
 557
 558   g_hash_table_foreach (hash,
 559                         put_areas_into_list,
 560                         &list);
 561
 562   for (cursor=list; cursor; cursor=cursor->next)
 563     {
 564       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
 565                                          cursor->data);
 566     }
 567
 568   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
 569                                      HILDON_TOUCH_SELECTOR (selector));
 570
 571   gtk_widget_show_all (GTK_WIDGET (dialog));
 572
 573   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
 574     {
 575       show_message (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
 576     }
 577   g_hash_table_unref (hash);
 578   gtk_widget_destroy (GTK_WIDGET (dialog));
 579 }
 580
 581 static void
 582 towers_by_area (void)
 583 {
 584   GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
 585   GtkWidget *selector = hildon_touch_selector_new_text ();
 586   GHashTable *hash = g_hash_table_new_full (g_str_hash,
 587                                             g_str_equal,
 588                                             g_free,
 589                                             g_free);
 590   GSList *list = NULL, *cursor;
 591   gchar *result = NULL;
 592
 593   gtk_window_set_title (GTK_WINDOW (dialog), "Areas of the world");
 594
 595   parse_dove (get_countries_cb, NULL, hash);
 596
 597   g_hash_table_foreach (hash,
 598                         put_areas_into_list,
 599                         &list);
 600
 601   for (cursor=list; cursor; cursor=cursor->next)
 602     {
 603       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
 604                                          cursor->data);
 605     }
 606
 607   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
 608                                      HILDON_TOUCH_SELECTOR (selector));
 609
 610   gtk_widget_show_all (GTK_WIDGET (dialog));
 611
 612   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
 613     {
 614       result = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
 615     }
 616   g_hash_table_unref (hash);
 617   gtk_widget_destroy (GTK_WIDGET (dialog));
 618
 619   if (result)
 620     {
 621       towers_by_subarea (result);
 622       g_free (result);
 623     }
 624 }
 625
 626 static void
 627 show_towers_from_list (GSList *list)
 628 {
 629   GtkWidget *dialog;
 630   GtkWidget *selector;
 631   gchar *result = NULL;
 632   GSList *cursor;
 633
 634   if (!list)
 635     {
 636       hildon_banner_show_information(window,
 637                                      NULL,
 638                                      "No towers found.");
 639       return;
 640     }
 641
 642   if (!list->next)
 643     {
 644       /* don't bother showing the list */
 645       hildon_banner_show_information(window,
 646                                      NULL,
 647                                      "One tower found.");
 648       show_tower (list->data);
 649       return;
 650     }
 651
 652   dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
 653   selector = hildon_touch_selector_new_text ();
 654
 655   for (cursor=list; cursor; cursor=cursor->next)
 656     {
 657       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
 658                                          cursor->data);
 659     }
 660
 661   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
 662                                      HILDON_TOUCH_SELECTOR (selector));
 663
 664   gtk_widget_show_all (GTK_WIDGET (dialog));
 665
 666   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
 667     {
 668       result = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
 669     }
 670
 671   gtk_widget_destroy (GTK_WIDGET (dialog));
 672
 673   if (result)
 674     {
 675       show_tower (result);
 676       g_free (result);
 677     }
 678 }
 679
 680 static void
 681 show_bookmarks (void)
 682 {
 683   GSList *test = NULL;
 684   show_towers_from_list (test);
 685 }
 686
 687 static void
 688 tower_search (void)
 689 {
 690   GSList *test = NULL;
 691   test = g_slist_append (test, "NORTON  HE");
 692
 693   show_towers_from_list (test);
 694 }
 695
 696 static void
 697 recent_towers (void)
 698 {
 699   GSList *test = NULL;
 700   test = g_slist_append (test, "BARFORD");
 701   test = g_slist_append (test, "BRAUGHING");
 702
 703   show_towers_from_list (test);
 704 }
 705
 706 int
 707 main(int argc, char **argv)
 708 {
 709   GtkWidget *bell, *button, *hbox;
 710   GdkPixbuf *bell_picture;
 711
 712   gtk_init (&argc, &argv);
 713   g_set_application_name ("Belltower");
 714
 715   window = hildon_stackable_window_new ();
 716   gtk_window_set_title (GTK_WINDOW (window), "Belltower");
 717   g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK (gtk_main_quit), NULL);
 718
 719   bell_picture = gdk_pixbuf_new_from_file ("/usr/share/belltower/bells1.jpg", NULL);
 720
 721   buttons = gtk_vbox_new (TRUE, 0);
 722   menu = HILDON_APP_MENU (hildon_app_menu_new ());
 723
 724   add_button ("Nearby", nearby_towers);
 725   add_button ("Recent", recent_towers);
 726   add_button ("Bookmarks", show_bookmarks);
 727   add_button ("By area", towers_by_area);
 728   add_button ("Search", tower_search);
 729
 730   /* extra buttons for the app menu */
 731   button = gtk_button_new_with_label ("Credits");
 732   hildon_app_menu_append (menu, GTK_BUTTON (button));
 733   hildon_app_menu_append (menu, GTK_BUTTON (button));
 734
 735   gtk_widget_show_all (GTK_WIDGET (menu));
 736   hildon_window_set_app_menu (HILDON_WINDOW (window), menu);
 737
 738   hbox = gtk_hbox_new (FALSE, 0);
 739   gtk_box_pack_end (GTK_BOX (hbox), buttons, TRUE, TRUE, 0);
 740   gtk_box_pack_end (GTK_BOX (hbox),
 741                     gtk_image_new_from_pixbuf (bell_picture),
 742                     TRUE, TRUE, 0);
 743
 744   gtk_container_add (GTK_CONTAINER (window), hbox);
 745   gtk_widget_show_all (GTK_WIDGET (window));
 746
 747   gtk_main ();
 748
 749   return EXIT_SUCCESS;
 750 }