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[belltower] / 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_IGNORE,
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 FilterResult (*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 FilterResult
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_IGNORE;
273 }
274
275 typedef struct {
276   GHashTable *hash;
277   gchar *country_name;
278 } country_cb_data;
279
280 typedef struct {
281   char *country;
282   char *county;
283 } country_and_county;
284
285 static FilterResult
286 get_counties_cb (tower *details,
287                  gpointer data)
288 {
289   country_cb_data *d = (country_cb_data *)data;
290
291   if (details->serial==0)
292     return FILTER_IGNORE; /* header row */
293
294   if (strcmp(details->fields[FieldCountry], d->country_name)!=0)
295     return FILTER_IGNORE; /* wrong country */
296
297   if (!g_hash_table_lookup_extended (d->hash,
298                                     details->fields[FieldCounty],
299                                      NULL, NULL))
300     {
301       g_hash_table_insert (d->hash,
302                            g_strdup(details->fields[FieldCounty]),
303                            g_strdup (details->fields[FieldCounty]));
304     }
305
306   return FILTER_IGNORE;
307 }
308
309 static FilterResult
310 get_towers_by_county_cb (tower *details,
311                          gpointer data)
312 {
313   country_and_county *cac = (country_and_county *) data;
314
315   if ((!cac->county || strcmp (cac->county, details->fields[FieldCounty])==0) &&
316       (!cac->country || strcmp (cac->country, details->fields[FieldCountry])==0))
317     {
318       return FILTER_ACCEPT;
319     }
320   else
321     {
322       return FILTER_IGNORE;
323     }
324 }
325
326 static FilterResult
327 single_tower_cb (tower *details,
328                  gpointer data)
329 {
330
331   GtkWidget *hbox, *button;
332   gchar *str;
333   gint tenor_weight;
334   gchar *primary_key = (gchar*) data;
335   gchar *miles;
336
337   if (strcmp(details->fields[FieldPrimaryKey], primary_key)!=0)
338     {
339       /* not this one; keep going */
340       return FILTER_IGNORE;
341     }
342
343   tower_window = hildon_stackable_window_new ();
344
345   if (g_str_has_prefix (details->fields[FieldDedication],
346                         "S "))
347     {
348       /* FIXME: This needs to be cleverer, because we can have
349        * e.g. "S Peter and S Paul".
350        * May have to use regexps.
351        * Reallocation in general even when unchanged is okay,
352        * because it's the common case (most towers are S Something)
353        */
354       
355       /* FIXME: Since we're passing this in as markup,
356        * we need to escape the strings.
357        */
358
359       str = g_strdup_printf("S<sup>t</sup> %s, %s",
360                               details->fields[FieldDedication]+2,
361                               details->fields[FieldPlace]);
362
363     }
364   else
365     {
366       str = g_strdup_printf("%s, %s",
367                               details->fields[FieldDedication],
368                               details->fields[FieldPlace]);
369     }
370
371   hildon_window_set_markup (HILDON_WINDOW (tower_window),
372                             str);
373   g_free (str);
374
375   hbox = gtk_hbox_new (FALSE, 0);
376   tower_table = gtk_table_new (0, 2, FALSE);
377   buttons = gtk_vbox_new (TRUE, 0);
378   menu = HILDON_APP_MENU (hildon_app_menu_new ());
379
380   miles = distance_to_tower(details);
381
382   add_table_field ("Distance", miles);
383   add_table_field ("Postcode", details->fields[FieldPostcode]);
384   add_table_field ("County", details->fields[FieldCounty]);
385   add_table_field ("Country", details->fields[FieldCountry]);
386   add_table_field ("Diocese", details->fields[FieldDiocese]);
387   add_table_field ("Practice night", details->fields[FieldPracticeNight]);
388   add_table_field ("Bells", details->fields[FieldBells]);
389
390   g_free (miles);
391
392   tenor_weight = atoi (details->fields[FieldWt]);
393   str = g_strdup_printf("%dcwt %dqr %dlb in %s",
394                         tenor_weight/112,
395                         (tenor_weight % 112)/28,
396                         tenor_weight % 28,
397                         details->fields[FieldNote]
398                         );
399   add_table_field ("Tenor", str);
400   g_free (str);
401
402   add_button ("Tower website", show_tower_website);
403   add_button ("Peals", show_peals_list);
404   add_button ("Map", show_tower_map);
405   add_button ("Directions", NULL);
406
407   /* don't use a toggle button: it looks stupid */
408   button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
409                                         HILDON_BUTTON_ARRANGEMENT_VERTICAL,
410                                         "Bookmark", NULL);
411   g_signal_connect (button, "clicked", G_CALLBACK (bookmark_toggled), NULL);
412   gtk_box_pack_start (GTK_BOX (buttons), button, FALSE, FALSE, 0);
413
414   gtk_widget_show_all (GTK_WIDGET (menu));
415   hildon_window_set_app_menu (HILDON_WINDOW (tower_window), menu);
416
417   gtk_box_pack_end (GTK_BOX (hbox), buttons, TRUE, TRUE, 0);
418   gtk_box_pack_end (GTK_BOX (hbox), tower_table, TRUE, TRUE, 0);
419
420   gtk_container_add (GTK_CONTAINER (tower_window), hbox);
421
422   g_free (tower_website);
423   tower_website = g_strdup_printf ("http://%s", details->fields[FieldWebPage]);
424   g_free (peals_list);
425   peals_list = g_strdup_printf ("http://www.pealbase.ismysite.co.uk/felstead/tbid.php?tid=%s",
426        details->fields[FieldTowerBase]);
427   g_free (tower_map);
428   tower_map = g_strdup_printf ("http://maps.google.com/maps?q=%s,%s",
429         details->fields[FieldLat],
430         details->fields[FieldLong]);
431   gtk_widget_show_all (GTK_WIDGET (tower_window));
432
433   return FILTER_STOP;
434 }
435
436 static void
437 parse_dove (ParseDoveCallback callback,
438             GSList **filter_results,
439             gpointer data)
440 {
441   FILE *dove = fopen("/usr/share/belltower/dove.txt", "r");
442   char tower_rec[4096];
443   tower result;
444   char *i;
445   gboolean seen_newline;
446
447   if (!dove)
448     {
449       show_message ("Cannot open Dove database!");
450       exit (255);
451     }
452
453   result.serial = 0;
454
455   while (fgets (tower_rec, sizeof (tower_rec), dove))
456     {
457       seen_newline = FALSE;
458       result.fields[0] = tower_rec;
459       result.n_fields = 0;
460       for (i=tower_rec; *i; i++) {
461         if (*i=='\n')
462           {
463             seen_newline = TRUE;
464           }
465         if (*i=='\\' || *i=='\n')
466           {
467             *i = 0;
468             result.n_fields++;
469             result.fields[result.n_fields] = i+1;
470           }
471       }
472
473       if (!seen_newline)
474         {
475           /* keep it simple, stupid */
476           show_message ("Line too long, cannot continue.");
477           exit (255);
478         }
479
480       if (strcmp (result.fields[FieldCountry], "")==0)
481         {
482           result.fields[FieldCountry] = "England";
483         }
484
485       switch (callback (&result, data))
486         {
487         case FILTER_IGNORE:
488           /* nothing */
489           break;
490
491         case FILTER_STOP:
492           fclose (dove);
493           return;
494
495         case FILTER_ACCEPT:
496           if (filter_results)
497             {
498               *filter_results = g_slist_append (*filter_results,
499                                                 g_strdup (result.fields[FieldPrimaryKey]));
500             }
501         }
502
503       result.serial++;
504     }
505
506   fclose (dove);
507 }
508
509 static void
510 nearby_towers (void)
511 {
512   char buffer[4096];
513   LocationGPSDevice *device;
514   device = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
515
516   sprintf(buffer, "%f %f %x",
517       device->fix->latitude,
518       device->fix->longitude,
519       device->fix->fields);
520   show_message (buffer);
521
522   if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET)
523     {
524       show_message ("I know where you are!");
525     }
526   else
527     {
528       show_message ("I don't know where you are!");
529     }
530
531   g_object_unref (device);
532 }
533
534 static void
535 show_tower (char *primary_key)
536 {
537   parse_dove (single_tower_cb, NULL, primary_key);
538 }
539
540 static void
541 show_towers_from_list (GSList *list)
542 {
543   GtkWidget *dialog;
544   GtkWidget *selector;
545   gchar *result = NULL;
546   GSList *cursor;
547
548   if (!list)
549     {
550       hildon_banner_show_information(window,
551                                      NULL,
552                                      "No towers found.");
553       return;
554     }
555
556   if (!list->next)
557     {
558       /* only one; don't bother showing the list */
559       hildon_banner_show_information(window,
560                                      NULL,
561                                      "One tower found.");
562       show_tower (list->data);
563
564       /* FIXME: and free the list */
565       return;
566     }
567
568   dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
569   selector = hildon_touch_selector_new_text ();
570
571   for (cursor=list; cursor; cursor=cursor->next)
572     {
573       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
574                                          cursor->data);
575     }
576
577   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
578                                      HILDON_TOUCH_SELECTOR (selector));
579
580   gtk_widget_show_all (GTK_WIDGET (dialog));
581
582   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
583     {
584       result = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
585     }
586
587   gtk_widget_destroy (GTK_WIDGET (dialog));
588
589   if (result)
590     {
591       show_tower (result);
592       g_free (result);
593     }
594
595   /* FIXME: and free the list */
596 }
597
598 static gint strcmp_f (gconstpointer a,
599                       gconstpointer b)
600 {
601   return strcmp ((char*)a, (char*)b);
602 }
603
604 static void
605 put_areas_into_list (gpointer key,
606                      gpointer value,
607                      gpointer data)
608 {
609   GSList **list = (GSList **)data;
610   *list = g_slist_insert_sorted (*list,
611                                  value,
612                                  strcmp_f);
613 }
614
615 static void
616 towers_by_subarea (gchar *area)
617 {
618   GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
619   GtkWidget *selector = hildon_touch_selector_new_text ();
620   GHashTable *hash = g_hash_table_new_full (g_str_hash,
621                                             g_str_equal,
622                                             g_free,
623                                             g_free);
624   GSList *list=NULL, *cursor;
625   gchar *title = g_strdup_printf ("Areas of %s", area);
626   country_cb_data d = { hash, area };
627   country_and_county cac = { area, NULL };
628
629   gtk_window_set_title (GTK_WINDOW (dialog), title);
630   g_free (title);
631
632   parse_dove (get_counties_cb, NULL, &d);
633
634   g_hash_table_foreach (hash,
635                         put_areas_into_list,
636                         &list);
637
638   for (cursor=list; cursor; cursor=cursor->next)
639     {
640       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
641                                          cursor->data);
642     }
643
644   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
645                                      HILDON_TOUCH_SELECTOR (selector));
646
647   gtk_widget_show_all (GTK_WIDGET (dialog));
648
649   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
650     {
651       GSList *matches = NULL;
652       cac.county = strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
653
654       parse_dove (get_towers_by_county_cb,
655                   &matches,
656                   &cac);
657       g_free (cac.county);
658
659       show_towers_from_list (matches);
660     }
661   g_hash_table_unref (hash);
662   gtk_widget_destroy (GTK_WIDGET (dialog));
663 }
664
665 static void
666 towers_by_area (void)
667 {
668   GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
669   GtkWidget *selector = hildon_touch_selector_new_text ();
670   GHashTable *hash = g_hash_table_new_full (g_str_hash,
671                                             g_str_equal,
672                                             g_free,
673                                             g_free);
674   GSList *list = NULL, *cursor;
675   gchar *result = NULL;
676
677   gtk_window_set_title (GTK_WINDOW (dialog), "Areas of the world");
678
679   parse_dove (get_countries_cb, NULL, hash);
680
681   g_hash_table_foreach (hash,
682                         put_areas_into_list,
683                         &list);
684
685   for (cursor=list; cursor; cursor=cursor->next)
686     {
687       hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector),
688                                          cursor->data);
689     }
690
691   hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog),
692                                      HILDON_TOUCH_SELECTOR (selector));
693
694   gtk_widget_show_all (GTK_WIDGET (dialog));
695
696   if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK)
697     {
698       result = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
699     }
700   g_hash_table_unref (hash);
701   gtk_widget_destroy (GTK_WIDGET (dialog));
702
703   if (result)
704     {
705       towers_by_subarea (result);
706       g_free (result);
707     }
708 }
709
710 static void
711 show_bookmarks (void)
712 {
713   GSList *test = NULL;
714   show_towers_from_list (test);
715 }
716
717 static void
718 tower_search (void)
719 {
720   GSList *test = NULL;
721   test = g_slist_append (test, "NORTON  HE");
722
723   show_towers_from_list (test);
724 }
725
726 static void
727 recent_towers (void)
728 {
729   GSList *test = NULL;
730   test = g_slist_append (test, "BARFORD");
731   test = g_slist_append (test, "BRAUGHING");
732
733   show_towers_from_list (test);
734 }
735
736 int
737 main(int argc, char **argv)
738 {
739   GtkWidget *bell, *button, *hbox;
740   GdkPixbuf *bell_picture;
741
742   gtk_init (&argc, &argv);
743   g_set_application_name ("Belltower");
744
745   window = hildon_stackable_window_new ();
746   gtk_window_set_title (GTK_WINDOW (window), "Belltower");
747   g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK (gtk_main_quit), NULL);
748
749   bell_picture = gdk_pixbuf_new_from_file ("/usr/share/belltower/bells1.jpg", NULL);
750
751   buttons = gtk_vbox_new (TRUE, 0);
752   menu = HILDON_APP_MENU (hildon_app_menu_new ());
753
754   add_button ("Nearby", nearby_towers);
755   add_button ("Recent", recent_towers);
756   add_button ("Bookmarks", show_bookmarks);
757   add_button ("By area", towers_by_area);
758   add_button ("Search", tower_search);
759
760   /* extra buttons for the app menu */
761   button = gtk_button_new_with_label ("Credits");
762   hildon_app_menu_append (menu, GTK_BUTTON (button));
763   hildon_app_menu_append (menu, GTK_BUTTON (button));
764
765   gtk_widget_show_all (GTK_WIDGET (menu));
766   hildon_window_set_app_menu (HILDON_WINDOW (window), menu);
767
768   hbox = gtk_hbox_new (FALSE, 0);
769   gtk_box_pack_end (GTK_BOX (hbox), buttons, TRUE, TRUE, 0);
770   gtk_box_pack_end (GTK_BOX (hbox),
771                     gtk_image_new_from_pixbuf (bell_picture),
772                     TRUE, TRUE, 0);
773
774   gtk_container_add (GTK_CONTAINER (window), hbox);
775   gtk_widget_show_all (GTK_WIDGET (window));
776
777   gtk_main ();
778
779   return EXIT_SUCCESS;
780 }