X-Git-Url: http://git.maemo.org/git/?a=blobdiff_plain;f=belltower.c;h=b7b2dcb1969e4a6f7ac39d2157db6664d01d640d;hb=8a94f2099cf5f17f684b267576092a1f617a67c1;hp=f09b7bfa1fb7637ad1372830e820c165d68cb42b;hpb=40600a9d4d4d78f164da673e10d47a7e5ceef221;p=belltower diff --git a/belltower.c b/belltower.c index f09b7bf..b7b2dcb 100644 --- a/belltower.c +++ b/belltower.c @@ -17,12 +17,21 @@ #include #define MAX_FIELDS 50 +#define MAX_RECENT 5 #define CONFIG_GENERAL_GROUP "General" #define CONFIG_BOOKMARK_GROUP "Bookmarks" +#define CONFIG_RECENT_GROUP "Recent" #define CONFIG_SEEN_CREDITS_KEY "seen_credits" #define CONFIG_DIRECTORY "/home/user/.config/belltower" #define CONFIG_FILENAME CONFIG_DIRECTORY "/belltower.ini" +/** + * Somewhat arbitrary minimum number of belltowers in + * one country for the country to be considered to have + * "many" belltowers. + */ +#define MANY_BELLTOWERS 10 + GtkWidget *window; LocationGPSDevice *device; GKeyFile *static_content; @@ -91,6 +100,9 @@ typedef struct { int n_fields; } tower; +static void show_towers_from_list (GSList *list, gchar *list_name); +static void free_tower_list (GSList *list); + static void show_message (char *message) { @@ -359,17 +371,24 @@ get_countries_cb (tower *details, gpointer data) { GHashTable *hash = (GHashTable *)data; + gpointer value; if (details->serial==0) return TRUE; /* header row */ if (!g_hash_table_lookup_extended (hash, - details->fields[FieldCountry], - NULL, NULL)) + details->fields[FieldCountry], + NULL, &value)) { g_hash_table_insert (hash, g_strdup(details->fields[FieldCountry]), - g_strdup (details->fields[FieldCountry])); + GINT_TO_POINTER (0)); + } + else + { + g_hash_table_replace (hash, + g_strdup(details->fields[FieldCountry]), + GINT_TO_POINTER (GPOINTER_TO_INT (value)+1)); } return FILTER_IGNORE; @@ -462,14 +481,21 @@ get_towers_by_search_cb (tower *details, } } +/** + * A filter which accepts towers based on whether they + * appear in a particular group in the config file. + * + * \param details the candidate tower + * \param data pointer to a char* which names the group + */ static FilterResult -get_bookmarked_towers_cb (tower *details, +get_group_of_towers_cb (tower *details, gpointer data) { - if (g_key_file_get_boolean (config, - CONFIG_BOOKMARK_GROUP, - details->fields[FieldPrimaryKey], - NULL)) + if (g_key_file_has_key (config, + (char*) data, + details->fields[FieldPrimaryKey], + NULL)) { return FILTER_ACCEPT; } @@ -479,6 +505,68 @@ get_bookmarked_towers_cb (tower *details, } } +/** + * Removes the oldest entry from the [Recent] group in the config + * file until there are only five entries left. Does not save + * the file; you have to do that. + */ +static void +remove_old_recent_entries (void) +{ + gint count; + + do + { + gchar **towers; + gint oldest_date = 0; + gchar *oldest_tower = NULL; + gint i; + + /* It is a bit inefficient to do this every + * time we go around the loop. However, it + * makes the code far simpler, and we almost + * never go around more than once. + */ + towers = g_key_file_get_keys (config, + CONFIG_RECENT_GROUP, + &count, + NULL); + + if (count <= MAX_RECENT) + /* everything's fine */ + return; + + for (i=0; i MAX_RECENT); +} + static FilterResult single_tower_cb (tower *details, gpointer data) @@ -595,6 +683,13 @@ single_tower_cb (tower *details, g_free (tower_displayed); tower_displayed = g_strdup (details->fields[FieldPrimaryKey]); + g_key_file_set_integer (config, + CONFIG_RECENT_GROUP, + tower_displayed, + time (NULL)); + remove_old_recent_entries (); + save_config (); + gtk_widget_show_all (GTK_WIDGET (tower_window)); return FILTER_STOP; @@ -649,16 +744,28 @@ found_tower_free (FoundTower *tower) g_free (tower); } +/** + * Calls a given function once for each tower in the world. + * (The first call, however, is a header row.) + * + * \param callback The function to call. + * \param data Arbitrary data to pass to the callback. + * \param dialogue_title If non-NULL, a list will be displayed + * with the results. This is the title + * used for that dialogue. (The dialogue + * will automatically free filter_results.) + */ static void parse_dove (ParseDoveCallback callback, - GSList **filter_results, - gpointer data) + gpointer data, + gchar *dialogue_title) { FILE *dove = fopen("/usr/share/belltower/dove.txt", "r"); char tower_rec[4096]; tower result; char *i; gboolean seen_newline; + GSList *filter_results = NULL; if (!dove) { @@ -709,33 +816,63 @@ parse_dove (ParseDoveCallback callback, return; case FILTER_ACCEPT: - if (filter_results) - { - *filter_results = g_slist_append (*filter_results, - found_tower_new (&result)); - } + filter_results = g_slist_append (filter_results, + found_tower_new (&result)); } result.serial++; } fclose (dove); + + if (dialogue_title) + { + show_towers_from_list (filter_results, + dialogue_title); + } + else + { + free_tower_list (filter_results); + } } static void show_tower (char *primary_key) { - parse_dove (single_tower_cb, NULL, primary_key); + parse_dove (single_tower_cb, primary_key, NULL); } static void -show_towers_from_list (GSList *list) +free_tower_list (GSList *list) +{ + GSList *cursor = list; + + while (cursor) + { + found_tower_free ((FoundTower*) cursor->data); + cursor = cursor->next; + } + + g_slist_free (list); +} + +/** + * Displays a list of towers for the user to choose from. + * When one is chosen, we go to the display page for that tower. + * If there are none, this will tell the user there were none. + * If there is only one, we go straight to its display page. + * + * \param list a GSList of FoundTower objects. + * \param list_name the title for the dialogue. + */ +static void +show_towers_from_list (GSList *list, + gchar *list_name) { GtkWidget *dialog; GtkWidget *selector; gint result = -1; GSList *cursor; - gchar foo[2048]; if (!list) { @@ -755,12 +892,13 @@ show_towers_from_list (GSList *list) "One tower found."); show_tower (found->primarykey); - /* FIXME: and free the list */ + free_tower_list (list); return; } dialog = hildon_picker_dialog_new (GTK_WINDOW (window)); selector = hildon_touch_selector_new_text (); + gtk_window_set_title (GTK_WINDOW (dialog), list_name); for (cursor=list; cursor; cursor=cursor->next) { @@ -792,7 +930,7 @@ show_towers_from_list (GSList *list) show_tower (found->primarykey); } - /* FIXME: and free the list */ + free_tower_list (list); } static gint strcmp_f (gconstpointer a, @@ -815,8 +953,6 @@ put_areas_into_list (gpointer key, static void nearby_towers (void) { - GSList *matches = NULL; - if (!(device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET)) { show_message ("I don't know where you are!"); @@ -824,10 +960,8 @@ nearby_towers (void) } parse_dove (get_nearby_towers_cb, - &matches, - NULL); - - show_towers_from_list (matches); + NULL, + "Towers within fifty miles of you"); } static void @@ -847,7 +981,7 @@ towers_by_subarea (gchar *area) gtk_window_set_title (GTK_WINDOW (dialog), title); g_free (title); - parse_dove (get_counties_cb, NULL, &d); + parse_dove (get_counties_cb, &d, NULL); g_hash_table_foreach (hash, put_areas_into_list, @@ -866,37 +1000,96 @@ towers_by_subarea (gchar *area) if (gtk_dialog_run (GTK_DIALOG (dialog))==GTK_RESPONSE_OK) { - GSList *matches = NULL; - cac.county = strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector))); + gchar *title; + cac.county = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector))); + title = g_strdup_printf ("Towers in %s", + cac.county); parse_dove (get_towers_by_county_cb, - &matches, - &cac); + &cac, + title); g_free (cac.county); - - show_towers_from_list (matches); + g_free (title); } g_hash_table_unref (hash); gtk_widget_destroy (GTK_WIDGET (dialog)); } +/** + * Maps a hash table from country names to counts of belltowers to a + * newly-created hash table mapping country names to display + * names, containing only those countries which have many + * (or few) belltowers. + * + * \param source the source table + * \param want_many true if you want countries with many belltowers; + * false if you want countries with few. + */ +static GHashTable* +get_countries_with_many (GHashTable *source, + gboolean want_many) +{ + GHashTable *result = g_hash_table_new_full (g_str_hash, + g_str_equal, + g_free, + NULL); + GList *countries = g_hash_table_get_keys (source); + GList *cursor = countries; + + while (cursor) + { + gboolean has_many = + GPOINTER_TO_INT (g_hash_table_lookup (source, + cursor->data)) >= MANY_BELLTOWERS; + + if (has_many == want_many) + { + g_hash_table_insert (result, + g_strdup (cursor->data), + g_strdup (cursor->data)); + } + + cursor = cursor->next; + } + + g_list_free (countries); + return result; +} + +#define COUNTRIES_WITH_MANY "Countries with many belltowers" +#define COUNTRIES_WITH_FEW "Countries with few belltowers" + +/** + * Displays a list of areas of the world with many (or few) + * belltowers. If you ask for the areas with many, it include + * a link to the areas with few. + * + * \param countries_with_many True to list countries with many; + * false to list countries with few. + */ static void -towers_by_area (void) +towers_by_area_with_many (gboolean countries_with_many) { GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window)); GtkWidget *selector = hildon_touch_selector_new_text (); - GHashTable *hash = g_hash_table_new_full (g_str_hash, - g_str_equal, - g_free, - g_free); + GHashTable *countries_to_counts = g_hash_table_new_full (g_str_hash, + g_str_equal, + g_free, + NULL); + GHashTable *country_names; GSList *list = NULL, *cursor; gchar *result = NULL; - gtk_window_set_title (GTK_WINDOW (dialog), "Areas of the world"); + gtk_window_set_title (GTK_WINDOW (dialog), + countries_with_many? + COUNTRIES_WITH_MANY : COUNTRIES_WITH_FEW); - parse_dove (get_countries_cb, NULL, hash); + parse_dove (get_countries_cb, countries_to_counts, NULL); - g_hash_table_foreach (hash, + country_names = get_countries_with_many (countries_to_counts, + countries_with_many); + + g_hash_table_foreach (country_names, put_areas_into_list, &list); @@ -906,6 +1099,12 @@ towers_by_area (void) cursor->data); } + if (countries_with_many) + { + hildon_touch_selector_append_text (HILDON_TOUCH_SELECTOR (selector), + COUNTRIES_WITH_FEW); + } + hildon_picker_dialog_set_selector (HILDON_PICKER_DIALOG (dialog), HILDON_TOUCH_SELECTOR (selector)); @@ -915,26 +1114,55 @@ towers_by_area (void) { result = g_strdup (hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector))); } - g_hash_table_unref (hash); + + g_hash_table_unref (countries_to_counts); + g_hash_table_unref (country_names); gtk_widget_destroy (GTK_WIDGET (dialog)); if (result) { - towers_by_subarea (result); + if (countries_with_many) + { + /* these countries have many towers, so + * show the sub-areas + */ + if (strcmp (result, COUNTRIES_WITH_FEW)==0) + towers_by_area_with_many (FALSE); + else + towers_by_subarea (result); + } + else + { + country_and_county cac = { result, NULL }; + gchar *title = g_strdup_printf ("Belltowers in %s", + result); + + parse_dove (get_towers_by_county_cb, + &cac, + title); + + g_free (title); + } + g_free (result); } } +/** + * Shows all the towers in areas with many towers. + */ static void -show_bookmarks (void) +towers_by_area (void) { - GSList *matches = NULL; - - parse_dove (get_bookmarked_towers_cb, - &matches, - NULL); + towers_by_area_with_many (TRUE); +} - show_towers_from_list (matches); +static void +show_bookmarks (void) +{ + parse_dove (get_group_of_towers_cb, + CONFIG_BOOKMARK_GROUP, + "Bookmarks"); } static void @@ -947,7 +1175,6 @@ tower_search (void) GTK_RESPONSE_OK, NULL); GtkWidget *entry = gtk_entry_new (); - GSList *matches = NULL; gtk_box_pack_end (GTK_BOX (GTK_DIALOG (terms)->vbox), entry, TRUE, TRUE, 0); @@ -956,13 +1183,9 @@ tower_search (void) if (gtk_dialog_run (GTK_DIALOG (terms))==GTK_RESPONSE_OK) { - GSList *matches = NULL; - parse_dove (get_towers_by_search_cb, - &matches, - (char*) gtk_entry_get_text (GTK_ENTRY (entry))); - - show_towers_from_list (matches); + (char*) gtk_entry_get_text (GTK_ENTRY (entry)), + "Search results"); } gtk_widget_destroy (GTK_WIDGET (terms)); @@ -971,7 +1194,9 @@ tower_search (void) static void recent_towers (void) { - show_message ("This is not yet implemented."); + parse_dove (get_group_of_towers_cb, + CONFIG_RECENT_GROUP, + "Towers you have recently viewed"); } /**