static GList *routing_engine_list = NULL;
static VikLayerParam prefs[] = {
- { VIK_LAYER_NUM_TYPES, VIKING_ROUTING_PARAMS_NAMESPACE "default", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Default engine:"), VIK_LAYER_WIDGET_COMBOBOX, NULL, NULL, NULL },
+ { VIK_LAYER_NUM_TYPES, VIKING_ROUTING_PARAMS_NAMESPACE "default", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Default engine:"), VIK_LAYER_WIDGET_COMBOBOX, NULL, NULL, NULL, NULL, NULL, NULL },
};
gchar **routing_engine_labels = NULL;
void
vik_routing_prefs_init()
{
- a_preferences_register_group ( VIKING_ROUTING_PARAMS_GROUP_KEY, "Routing" );
+ a_preferences_register_group ( VIKING_ROUTING_PARAMS_GROUP_KEY, _("Routing") );
VikLayerParamData tmp;
tmp.s = NULL;
a_preferences_register(prefs, tmp, VIKING_ROUTING_PARAMS_GROUP_KEY);
}
+/* @see g_list_find_custom */
static gint
search_by_id (gconstpointer a,
gconstpointer b)
{
const gchar *id = b;
- VikRoutingEngine *engine = a;
+ VikRoutingEngine *engine = (VikRoutingEngine *)a;
gchar *engineId = vik_routing_engine_get_id (engine);
if (id && engine)
return strcmp(id, engineId);
}
/**
- * vik_routing_default:
+ * vik_routing_default_engine:
*
* Retrieve the default engine, based on user's preferences.
*
* Returns: the default engine
*/
-static VikRoutingEngine *
-vik_routing_default( void )
+VikRoutingEngine *
+vik_routing_default_engine ( void )
{
- gchar *id = a_preferences_get ( VIKING_ROUTING_PARAMS_NAMESPACE "default")->s;
+ const gchar *id = a_preferences_get ( VIKING_ROUTING_PARAMS_NAMESPACE "default")->s;
VikRoutingEngine *engine = vik_routing_find_engine(id);
if (engine == NULL && routing_engine_list != NULL && g_list_first (routing_engine_list) != NULL)
/* Fallback to first element */
* vik_routing_default_find:
*
* Route computation with default engine.
+ *
+ * Return indicates success or not
*/
-void
+gboolean
vik_routing_default_find(VikTrwLayer *vt, struct LatLon start, struct LatLon end)
{
/* The engine */
- VikRoutingEngine *engine = vik_routing_default ( );
+ VikRoutingEngine *engine = vik_routing_default_engine ( );
/* The route computation */
- vik_routing_engine_find ( engine, vt, start, end );
+ return vik_routing_engine_find ( engine, vt, start, end );
}
/**
void
vik_routing_register( VikRoutingEngine *engine )
{
- if ( VIK_IS_ROUTING_ENGINE ( engine ) )
- routing_engine_list = g_list_append ( routing_engine_list, g_object_ref ( engine ) );
-
- gsize len = 0;
- if (routing_engine_labels)
- len = g_strv_length (routing_engine_labels);
-
gchar *label = vik_routing_engine_get_label ( engine );
gchar *id = vik_routing_engine_get_id ( engine );
+ gsize len = 0;
+
+ /* check if id already exists in list */
+ GList *elem = g_list_find_custom (routing_engine_list, id, search_by_id);
+ if (elem != NULL) {
+ g_debug("%s: %s already exists: update", __FUNCTION__, id);
+
+ /* Update main list */
+ g_object_unref (elem->data);
+ elem->data = g_object_ref ( engine );
+
+ /* Update GUI arrays */
+ len = g_strv_length (routing_engine_labels);
+ for (; len > 0 ; len--) {
+ if (strcmp (routing_engine_ids[len-1], id) == 0)
+ break;
+ }
+ /* Update the label (possibly different */
+ g_free (routing_engine_labels[len-1]);
+ routing_engine_labels[len-1] = g_strdup (label);
+
+ } else {
+ g_debug("%s: %s is new: append", __FUNCTION__, id);
+ routing_engine_list = g_list_append ( routing_engine_list, g_object_ref ( engine ) );
- /* Add the label */
- routing_engine_labels = g_realloc (routing_engine_labels, (len+2)*sizeof(gchar*));
- routing_engine_labels[len] = g_strdup (label);
- routing_engine_labels[len+1] = NULL;
+ if (routing_engine_labels)
+ len = g_strv_length (routing_engine_labels);
+
+ /* Add the label */
+ routing_engine_labels = g_realloc (routing_engine_labels, (len+2)*sizeof(gchar*));
+ routing_engine_labels[len] = g_strdup (label);
+ routing_engine_labels[len+1] = NULL;
- /* Add the id */
- routing_engine_ids = g_realloc (routing_engine_ids, (len+2)*sizeof(gchar*));
- routing_engine_ids[len] = g_strdup (id);
- routing_engine_ids[len+1] = NULL;
+ /* Add the id */
+ routing_engine_ids = g_realloc (routing_engine_ids, (len+2)*sizeof(gchar*));
+ routing_engine_ids[len] = g_strdup (id);
+ routing_engine_ids[len+1] = NULL;
- /* Hack
- We have to ensure the mode LayerParam references the up-to-date
- GLists.
- */
- /*
- memcpy(&maps_layer_params[0].widget_data, ¶ms_maptypes, sizeof(gpointer));
- memcpy(&maps_layer_params[0].extra_widget_data, ¶ms_maptypes_ids, sizeof(gpointer));
- */
- prefs[0].widget_data = routing_engine_labels;
- prefs[0].extra_widget_data = routing_engine_ids;
+ /* Hack
+ We have to ensure the mode LayerParam references the up-to-date
+ GLists.
+ */
+ /*
+ memcpy(&maps_layer_params[0].widget_data, ¶ms_maptypes, sizeof(gpointer));
+ memcpy(&maps_layer_params[0].extra_widget_data, ¶ms_maptypes_ids, sizeof(gpointer));
+ */
+ prefs[0].widget_data = routing_engine_labels;
+ prefs[0].extra_widget_data = routing_engine_ids;
+ }
}
/**
g_strfreev ( routing_engine_labels );
g_strfreev ( routing_engine_ids );
}
+
+/**
+ * vik_routing_foreach_engine:
+ * @func: the function to run on each element
+ * @user_data: user's data to give to each call of @func
+ *
+ * Loop over all registered routing engines.
+ */
+void
+vik_routing_foreach_engine (GFunc func, gpointer user_data)
+{
+ g_list_foreach ( routing_engine_list, func, user_data );
+}
+
+/*
+ * This function is called for all routing engine registered.
+ * Following result of the predicate function, the current engine
+ * is added to the combobox. In order to retrieve the VikRoutingEngine
+ * object, we store a list of added engine in a GObject's data "engines".
+ *
+ * @see g_list_foreach()
+ */
+static void
+fill_engine_box (gpointer data, gpointer user_data)
+{
+ VikRoutingEngine *engine = (VikRoutingEngine*) data;
+ /* Retrieve combo */
+ GtkWidget *widget = (GtkWidget*) user_data;
+
+ /* Only register engine fulliling expected behavior */
+ Predicate predicate = g_object_get_data ( G_OBJECT ( widget ), "func" );
+ gpointer predicate_data = g_object_get_data ( G_OBJECT ( widget ), "user_data" );
+ /* No predicate means to register all engines */
+ gboolean ok = predicate == NULL || predicate (engine, predicate_data);
+
+ if (ok)
+ {
+ /* Add item in widget */
+ const gchar *label = vik_routing_engine_get_label (engine);
+ vik_combo_box_text_append (widget, label);
+ /* Save engine in internal list */
+ GList *engines = (GList*) g_object_get_data ( G_OBJECT ( widget ) , "engines" );
+ engines = g_list_append ( engines, engine );
+ g_object_set_data ( G_OBJECT ( widget ), "engines", engines );
+ }
+}
+
+/**
+ * vik_routing_ui_selector_new:
+ * @func: user function to decide if an engine has to be added or not
+ * @user_data: user data for previous function
+ *
+ * Creates a combo box to allow selection of a routing engine.
+ *
+ * We use GObject data hastable to store and retrieve the VikRoutingEngine
+ * associated to the selection.
+ *
+ * Returns: the combo box
+ */
+GtkWidget *
+vik_routing_ui_selector_new (Predicate func, gpointer user_data)
+{
+ /* Create the combo */
+ GtkWidget * combo = vik_combo_box_text_new ();
+
+ /* Save data for foreach function */
+ g_object_set_data ( G_OBJECT ( combo ), "func", func );
+ g_object_set_data ( G_OBJECT ( combo ), "user_data", user_data );
+
+ /* Filter all engines with given user function */
+ vik_routing_foreach_engine (fill_engine_box, combo);
+
+ return combo;
+}
+
+/**
+ * vik_routing_ui_selector_get_nth:
+ * @combo: the GtkWidget combobox
+ * @pos: the selected position
+ *
+ * Retrieve the VikRoutingEngine stored in a list attached to @combo
+ * via the "engines" property.
+ *
+ * Returns: the VikRoutingEngine object associated to @pos
+ */
+VikRoutingEngine *
+vik_routing_ui_selector_get_nth (GtkWidget *combo, int pos)
+{
+ /* Retrieve engine */
+ GList *engines = (GList*) g_object_get_data ( G_OBJECT ( combo ) , "engines" );
+ VikRoutingEngine *engine = g_list_nth_data ( engines, pos );
+
+ return engine;
+}
projects / andy / viking.git / blobdiff