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/*
* Geoclue
* revgeocode-example.c - Example using the ReverseGeocode client API
*
* Author: Jussi Kukkonen <jku@openedhand.com>
* Copyright 2007 by Garmin Ltd. or its subsidiaries
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include <glib.h>
#include <stdlib.h>
#include <geoclue/geoclue-reverse-geocode.h>
/* GHFunc, use with g_hash_table_foreach */
static void
print_address_key_and_value (char *key, char *value, gpointer user_data)
{
g_print (" %s: %s\n", key, value);
}
static GHashTable *
parse_options (int argc,
char **argv)
{
GHashTable *options;
int i;
options = g_hash_table_new (g_str_hash, g_str_equal);
for (i = 4; i < argc; i += 2) {
g_hash_table_insert (options, argv[i], argv[i + 1]);
}
return options;
}
int main (int argc, char** argv)
{
gchar *service, *path;
GeoclueReverseGeocode *revgeocoder = NULL;
GeoclueAccuracy *accuracy, *out_accuracy;
GHashTable *address = NULL;
double lat, lon;
GError *error = NULL;
g_type_init();
if (argc < 4) {
g_printerr ("Usage:\n revgeocode-example <provider_name> <lat> <lon>\n");
return 1;
}
g_print ("Using provider '%s'\n", argv[1]);
service = g_strdup_printf ("org.freedesktop.Geoclue.Providers.%s", argv[1]);
path = g_strdup_printf ("/org/freedesktop/Geoclue/Providers/%s", argv[1]);
/* Create new GeoclueReverseGeocode */
revgeocoder = geoclue_reverse_geocode_new (service, path);
g_free (service);
g_free (path);
if (revgeocoder == NULL) {
g_printerr ("Error while creating GeoclueGeocode object.\n");
return 1;
}
/* Set options */
if (argc > 4) {
GHashTable *options;
options = parse_options (argc, argv);
if (!geoclue_provider_set_options (GEOCLUE_PROVIDER (revgeocoder), options, &error)) {
g_printerr ("Error setting options: %s\n",
error->message);
g_error_free (error);
error = NULL;
}
g_hash_table_destroy (options);
}
address = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify)g_free,
(GDestroyNotify)g_free);
lat = atof (argv[2]);
lon = atof (argv[3]);
accuracy = geoclue_accuracy_new (GEOCLUE_ACCURACY_LEVEL_STREET, 0.0, 0.0);
if (!geoclue_reverse_geocode_position_to_address (revgeocoder,
lat, lon, accuracy,
&address, &out_accuracy, &error)) {
g_printerr ("Error while reverse geocoding: %s\n", error->message);
g_error_free (error);
g_object_unref (revgeocoder);
return 1;
}
/* Print out the address */
GeoclueAccuracyLevel level;
geoclue_accuracy_get_details (out_accuracy, &level, NULL, NULL);
g_print ("Reverse Geocoded [%f, %f] to address (accuracy %d):\n", lat, lon, level);
g_hash_table_foreach (address, (GHFunc)print_address_key_and_value, NULL);
g_hash_table_destroy (address);
g_object_unref (revgeocoder);
return 0;
}
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