#include <dbus/dbus-glib.h>
#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"
-GtkWidget *window;
+/**
+ * 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;
+GKeyFile *config;
typedef enum {
/** stop scanning the database */
int n_fields;
} tower;
-/*
- * we're going to pretend you're in Helsinki
- * until I get the GPS working
- */
-gboolean gps_working = FALSE;
-double current_lat = 60.161790;
-double current_long = 23.924902;
-
static void
show_message (char *message)
{
gtk_widget_destroy (GTK_WIDGET (note));
}
-static gchar*
+/**
+ * Loads the content of the static and dynamic data files.
+ * Possibly puts up a warning if we can't load the static file.
+ */
+static void
+load_config (void)
+{
+ static_content = g_key_file_new ();
+
+ if (!g_key_file_load_from_file (static_content,
+ "/usr/share/belltower/static.ini",
+ G_KEY_FILE_NONE,
+ NULL))
+ {
+ show_message ("Could not load static content. Attempting to continue.");
+ }
+
+ config = g_key_file_new ();
+ /* it doesn't matter if this fails */
+ g_key_file_load_from_file (config,
+ CONFIG_FILENAME,
+ G_KEY_FILE_KEEP_COMMENTS,
+ NULL);
+}
+
+/**
+ * Saves the dynamic data file to disk.
+ * Puts up a message if there was any error.
+ */
+static void
+save_config (void)
+{
+ gchar *data;
+
+ g_mkdir_with_parents (CONFIG_DIRECTORY, 0700);
+
+ data = g_key_file_to_data (config, NULL, NULL);
+
+ if (!g_file_set_contents (CONFIG_FILENAME,
+ data,
+ -1,
+ NULL))
+ {
+ show_message ("Could not write config file.");
+ }
+
+ g_free (data);
+}
+
+static gint
distance_to_tower (tower *details)
{
char *endptr;
const double km_to_miles = 1.609344;
tower_lat = strtod(details->fields[FieldLat], &endptr);
- if (*endptr) return g_strdup ("unknown");
+ if (*endptr) return -1;
tower_long = strtod(details->fields[FieldLong], &endptr);
- if (*endptr) return g_strdup ("unknown");
+ if (*endptr) return -1;
- km_distance = location_distance_between (current_lat,
- current_long,
+ km_distance = location_distance_between (device->fix->latitude,
+ device->fix->longitude,
tower_lat,
tower_long);
- return g_strdup_printf("%dmi", (int) (km_distance / km_to_miles));
+ return (int) (km_distance / km_to_miles);
+}
+
+static gchar*
+distance_to_tower_str (tower *details)
+{
+ int miles = distance_to_tower (details);
+
+ if (miles==-1)
+ {
+ return g_strdup ("unknown");
+ }
+ else
+ {
+ return g_strdup_printf("%dmi", (int) miles);
+ }
}
static void
}
+char *tower_displayed = NULL;
+char *tower_website = NULL;
+char *tower_map = NULL;
+char *tower_directions = NULL;
+char *peals_list = NULL;
+
+#define BUTTON_BOOKMARKED_YES "Remove from bookmarks"
+#define BUTTON_BOOKMARKED_NO "Bookmark"
+
static void
bookmark_toggled (GtkButton *button,
gpointer dummy)
{
- show_message ("Bookmarks are not yet implemented.");
-}
+ if (g_key_file_get_boolean (config,
+ CONFIG_BOOKMARK_GROUP,
+ tower_displayed,
+ NULL))
+ {
-char *tower_website = NULL;
-char *tower_map = NULL;
-char *tower_directions = NULL;
-char *peals_list = NULL;
+ /* it's bookmarked; remove the bookmark */
+
+ if (!g_key_file_remove_key (config,
+ CONFIG_BOOKMARK_GROUP,
+ tower_displayed,
+ NULL))
+ {
+ show_message ("Could not remove bookmark.");
+ return;
+ }
+
+ save_config ();
+ gtk_button_set_label (button,
+ BUTTON_BOOKMARKED_NO);
+ }
+ else
+ {
+ /* it's not bookmarked; add a bookmark */
+
+ g_key_file_set_boolean (config,
+ CONFIG_BOOKMARK_GROUP,
+ tower_displayed,
+ TRUE);
+
+ save_config ();
+ gtk_button_set_label (button,
+ BUTTON_BOOKMARKED_YES);
+ }
+}
static void
show_tower_website (void)
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;
}
static FilterResult
+get_nearby_towers_cb (tower *details,
+ gpointer data)
+{
+ if (details->serial==0)
+ return FILTER_IGNORE; /* header row */
+
+ if (distance_to_tower (details) < 50)
+ {
+ return FILTER_ACCEPT;
+ }
+ else
+ {
+ return FILTER_IGNORE;
+ }
+}
+
+static FilterResult
get_towers_by_county_cb (tower *details,
gpointer data)
{
}
}
+/**
+ * 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_group_of_towers_cb (tower *details,
+ gpointer data)
+{
+ if (g_key_file_has_key (config,
+ (char*) data,
+ details->fields[FieldPrimaryKey],
+ NULL))
+ {
+ return FILTER_ACCEPT;
+ }
+ else
+ {
+ return FILTER_IGNORE;
+ }
+}
+
+/**
+ * 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<count; i++)
+ {
+ gint date = g_key_file_get_integer (config,
+ CONFIG_RECENT_GROUP,
+ towers[i],
+ NULL);
+
+ if (date==0)
+ continue;
+
+ if (oldest_date==0 ||
+ date < oldest_date)
+ {
+ oldest_tower = towers[i];
+ oldest_date = date;
+ }
+ }
+
+ if (oldest_tower)
+ {
+ g_key_file_remove_key (config,
+ CONFIG_RECENT_GROUP,
+ oldest_tower,
+ NULL);
+ count --;
+ }
+ g_strfreev (towers);
+ }
+ while (count > MAX_RECENT);
+}
+
static FilterResult
single_tower_cb (tower *details,
gpointer data)
buttons = gtk_vbox_new (TRUE, 0);
menu = HILDON_APP_MENU (hildon_app_menu_new ());
- miles = distance_to_tower(details);
+ miles = distance_to_tower_str(details);
add_table_field ("Distance", miles);
add_table_field ("Postcode", details->fields[FieldPostcode]);
add_table_field ("Tenor", str);
g_free (str);
- add_button ("Tower website", show_tower_website);
+ if (strcmp(details->fields[FieldWebPage], "")!=0)
+ {
+ add_button ("Tower website", show_tower_website);
+ }
add_button ("Peals", show_peals_list);
add_button ("Map", show_tower_map);
add_button ("Directions", NULL);
/* don't use a toggle button: it looks stupid */
button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
HILDON_BUTTON_ARRANGEMENT_VERTICAL,
- "Bookmark", NULL);
+ g_key_file_get_boolean (config,
+ CONFIG_BOOKMARK_GROUP,
+ details->fields[FieldPrimaryKey],
+ NULL)?
+ BUTTON_BOOKMARKED_YES: BUTTON_BOOKMARKED_NO,
+ NULL);
g_signal_connect (button, "clicked", G_CALLBACK (bookmark_toggled), NULL);
gtk_box_pack_start (GTK_BOX (buttons), button, FALSE, FALSE, 0);
tower_map = g_strdup_printf ("http://maps.google.com/maps?q=%s,%s",
details->fields[FieldLat],
details->fields[FieldLong]);
+ 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;
result->sortkey = g_strdup (basis->fields[FieldPrimaryKey]);
result->primarykey = g_strdup (basis->fields[FieldPrimaryKey]);
- if (gps_working)
+ if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET)
{
- gchar *distance = distance_to_tower (basis);
+ gchar *distance = distance_to_tower_str (basis);
result->displayname = g_strdup_printf ("%s, %s (%s, %s) (%s)",
basis->fields[FieldDedication],
basis->fields[FieldPlace],
}
static void
-nearby_towers (void)
+show_tower (char *primary_key)
{
- if (!gps_working)
- {
- show_message ("I don't know where you are!");
- return;
- }
+ parse_dove (single_tower_cb, NULL, primary_key);
}
static void
-show_tower (char *primary_key)
+free_tower_list (GSList *list)
{
- parse_dove (single_tower_cb, NULL, primary_key);
+ GSList *cursor = list;
+
+ while (cursor)
+ {
+ found_tower_free ((FoundTower*) cursor->data);
+ cursor = cursor->next;
+ }
+
+ g_slist_free (list);
}
static void
"One tower found.");
show_tower (found->primarykey);
- /* FIXME: and free the list */
+ free_tower_list (list);
return;
}
show_tower (found->primarykey);
}
- /* FIXME: and free the list */
+ free_tower_list (list);
}
static gint strcmp_f (gconstpointer a,
}
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!");
+ return;
+ }
+
+ parse_dove (get_nearby_towers_cb,
+ &matches,
+ NULL);
+
+ show_towers_from_list (matches);
+}
+
+static void
towers_by_subarea (gchar *area)
{
GtkWidget *dialog = hildon_picker_dialog_new (GTK_WINDOW (window));
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"
+
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, NULL, countries_to_counts);
- 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);
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));
{
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 (strcmp (result, COUNTRIES_WITH_FEW)==0)
+ towers_by_area_with_many (FALSE);
+ else
+ towers_by_subarea (result);
+
g_free (result);
}
}
+/**
+ * Shows all the towers in areas with many towers.
+ */
+static void
+towers_by_area (void)
+{
+ towers_by_area_with_many (TRUE);
+}
+
static void
show_bookmarks (void)
{
+ GSList *matches = NULL;
+
+ parse_dove (get_group_of_towers_cb,
+ &matches,
+ CONFIG_BOOKMARK_GROUP);
+
+ show_towers_from_list (matches);
}
static void
static void
recent_towers (void)
{
+ GSList *matches = NULL;
+
+ parse_dove (get_group_of_towers_cb,
+ &matches,
+ CONFIG_RECENT_GROUP);
+
+ show_towers_from_list (matches);
}
+/**
+ * Displays a web page.
+ * (Perhaps this should be merged with show_browser().)
+ *
+ * \param url The URL.
+ */
static void
-grab_gps (void)
+show_web_page (GtkButton *dummy,
+ gpointer url)
{
- gps_working = (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET)!=0;
+ show_browser (url);
+}
- if (gps_working)
+/**
+ * Shows the credits.
+ *
+ * \param source If non-null, we were called from a button press,
+ * so always show the credits. If null, we were called
+ * automatically on startup, so show the credits if
+ * they haven't already been seen.
+ */
+static void
+show_credits (GtkButton *source,
+ gpointer dummy)
+{
+ gboolean from_button = (source!=NULL);
+ GtkWidget *dialog, *label, *button;
+
+ if (!from_button &&
+ g_key_file_get_boolean (config,
+ CONFIG_GENERAL_GROUP,
+ CONFIG_SEEN_CREDITS_KEY,
+ NULL))
{
- current_lat = device->fix->latitude;
- current_long = device->fix->longitude;
+ return;
}
+
+
+ dialog = gtk_dialog_new_with_buttons ("Credits",
+ GTK_WINDOW (window),
+ GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
+ NULL
+ );
+
+ button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
+ HILDON_BUTTON_ARRANGEMENT_VERTICAL,
+ "View the GNU General Public Licence",
+ "This program is provided under the GPL, with no warranty.");
+ g_signal_connect (button, "clicked", G_CALLBACK (show_web_page),
+ "www.gnu.org/copyleft/gpl.html");
+ gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
+ button,
+ TRUE, TRUE, 0);
+
+ button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
+ HILDON_BUTTON_ARRANGEMENT_VERTICAL,
+ "View Dove's Guide for Church Bell Ringers",
+ "The source of this program's data.");
+ g_signal_connect (button, "clicked", G_CALLBACK (show_web_page),
+ "http://dove.cccbr.org.uk");
+ gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
+ button,
+ TRUE, TRUE, 0);
+
+ button = hildon_button_new_with_text (HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT,
+ HILDON_BUTTON_ARRANGEMENT_VERTICAL,
+ "View belfry photograph",
+ "Image \xc2\xa9 Amanda Slater, cc-by-sa.");
+ g_signal_connect (button, "clicked", G_CALLBACK (show_web_page),
+ "http://www.flickr.com/photos/pikerslanefarm/3398769335/");
+ gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
+ button,
+ TRUE, TRUE, 0);
+
+ gtk_widget_show_all (GTK_WIDGET (dialog));
+
+ g_key_file_set_boolean (config,
+ CONFIG_GENERAL_GROUP,
+ CONFIG_SEEN_CREDITS_KEY,
+ TRUE);
+ save_config ();
}
int
g_set_application_name ("Belltower");
device = g_object_new (LOCATION_TYPE_GPS_DEVICE, NULL);
- grab_gps ();
- /* FIXME and call that when the location changes, too */
window = hildon_stackable_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Belltower");
/* extra buttons for the app menu */
button = gtk_button_new_with_label ("Credits");
- hildon_app_menu_append (menu, GTK_BUTTON (button));
+ g_signal_connect (button, "clicked", G_CALLBACK (show_credits), NULL);
hildon_app_menu_append (menu, GTK_BUTTON (button));
gtk_widget_show_all (GTK_WIDGET (menu));
gtk_container_add (GTK_CONTAINER (window), hbox);
gtk_widget_show_all (GTK_WIDGET (window));
+ load_config ();
+ show_credits (NULL, NULL);
+
gtk_main ();
return EXIT_SUCCESS;
projects / belltower / blobdiff