Added a get_n_objects() method.

2000-06-09  Federico Mena Quintero  <federico@helixcode.com>

	* idl/evolution-calendar.idl (Cal): Added a get_n_objects()
	method.

	* pcs/cal-backend.c (cal_backend_get_n_objects): New function.

	* pcs/cal-backend-imc.c (cal_backend_imc_get_n_objects):
	Implemented.

	* pcs/cal.c (Cal_get_n_objects): Implemented.

	* cal-client/cal-client.c (cal_client_get_uids): Free the ev.
	(cal_client_get_n_objects): Implemented.

	* cal-util/calobj.h (iCalObjectField): New enumeration to identify
	the fields in an iCalObject.

svn path=/trunk/; revision=3486

1 files changed, 55 insertions, 0 deletions

diff --git a/calendar/pcs/cal-backend-imc.c b/calendar/pcs/cal-backend-imc.c
index a85c8ce535..713cddd7fe 100644
--- a/calendar/pcs/cal-backend-imc.c
+++ b/calendar/pcs/cal-backend-imc.c
@@ -74,6 +74,8 @@ static GnomeVFSURI *cal_backend_imc_get_uri (CalBackend *backend);
 static void cal_backend_imc_add_cal (CalBackend *backend, Cal *cal);
 static CalBackendLoadStatus cal_backend_imc_load (CalBackend *backend, GnomeVFSURI *uri);
 static void cal_backend_imc_create (CalBackend *backend, GnomeVFSURI *uri);
+
+static int cal_backend_imc_get_n_objects (CalBackend *backend, CalObjType type);
 static char *cal_backend_imc_get_object (CalBackend *backend, const char *uid);
 static GList *cal_backend_imc_get_uids (CalBackend *backend, CalObjType type);
 static GList *cal_backend_imc_get_events_in_range (CalBackend *backend, time_t start, time_t end);
@@ -137,6 +139,7 @@ cal_backend_imc_class_init (CalBackendIMCClass *class)
 	backend_class->add_cal = cal_backend_imc_add_cal;
 	backend_class->load = cal_backend_imc_load;
 	backend_class->create = cal_backend_imc_create;
+	backend_class->get_n_objects = cal_backend_imc_get_n_objects;
 	backend_class->get_object = cal_backend_imc_get_object;
 	backend_class->get_uids = cal_backend_imc_get_uids;
 	backend_class->get_events_in_range = cal_backend_imc_get_events_in_range;
@@ -829,6 +832,58 @@ cal_backend_imc_create (CalBackend *backend, GnomeVFSURI *uri)
 	save (cbimc);
 }
 
+struct get_n_objects_closure {
+	CalObjType type;
+	int n;
+};
+
+/* Counts the number of objects of the specified type.  Called from
+ * g_hash_table_foreach().
+ */
+static void
+count_objects (gpointer key, gpointer value, gpointer data)
+{
+	iCalObject *ico;
+	struct get_n_objects_closure *c;
+	gboolean store;
+
+	ico = value;
+	c = data;
+
+	store = FALSE;
+
+	if (ico->type == ICAL_EVENT)
+		store = (c->type & CALOBJ_TYPE_EVENT) != 0;
+	else if (ico->type == ICAL_TODO)
+		store = (c->type & CALOBJ_TYPE_TODO) != 0;
+	else if (ico->type == ICAL_JOURNAL)
+		store = (c->type & CALOBJ_TYPE_JOURNAL) != 0;
+	else
+		store = (c->type & CALOBJ_TYPE_OTHER) != 0;
+
+	if (store)
+		c->n++;
+}
+
+/* Get_n_objects handler for the IMC backend */
+static int
+cal_backend_imc_get_n_objects (CalBackend *backend, CalObjType type)
+{
+	CalBackendIMC *cbimc;
+	IMCPrivate *priv;
+	struct get_n_objects_closure c;
+
+	cbimc = CAL_BACKEND_IMC (backend);
+	priv = cbimc->priv;
+
+	g_return_val_if_fail (priv->loaded, -1);
+
+	c.type = type;
+	c.n = 0;
+
+	g_hash_table_foreach (priv->object_hash, count_objects, &c);
+}
+
 /* Get_object handler for the IMC backend */
 static char *
 cal_backend_imc_get_object (CalBackend *backend, const char *uid)