New function. (cal_component_get_icalcomponent): Ensure that the SEQUENCE

2000-08-07  Federico Mena Quintero  <federico@helixcode.com>

	* cal-util/cal-component.c (cal_component_clone): New function.
	(cal_component_get_icalcomponent): Ensure that the SEQUENCE
	property does not need incrementing.

	* gui/dialogs/alarm-notify-dialog.c (alarm_notify_dialog): Use
	CalComponent.  Deal with an empty summary property.

svn path=/trunk/; revision=4589

2 files changed, 37 insertions, 0 deletions

diff --git a/calendar/cal-util/cal-component.c b/calendar/cal-util/cal-component.c
index 0020c7d727..1c5bddd4fc 100644
--- a/calendar/cal-util/cal-component.c
+++ b/calendar/cal-util/cal-component.c
@@ -338,6 +338,39 @@ cal_component_new (void)
 	return CAL_COMPONENT (gtk_type_new (CAL_COMPONENT_TYPE));
 }
 
+/**
+ * cal_component_clone:
+ * @comp: A calendar component object.
+ * 
+ * Creates a new calendar component object by copying the information from
+ * another one.
+ * 
+ * Return value: A newly-created calendar component with the same values as the
+ * original one.
+ **/
+CalComponent *
+cal_component_clone (CalComponent *comp)
+{
+	CalComponentPrivate *priv;
+	CalComponent *new_comp;
+	icalcomponent *new_icalcomp;
+
+	g_return_val_if_fail (comp != NULL, NULL);
+	g_return_val_if_fail (IS_CAL_COMPONENT (comp), NULL);
+
+	priv = comp->priv;
+	g_return_val_if_fail (priv->need_sequence_inc == FALSE, NULL);
+
+	new_comp = cal_component_new ();
+
+	if (priv->icalcomp) {
+		new_icalcomp = icalcomponent_new_clone (priv->icalcomp);
+		cal_component_set_icalcomponent (new_comp, new_icalcomp);
+	}
+
+	return new_comp;
+}
+
 /* Scans the categories property */
 static void
 scan_categories (CalComponent *comp, icalproperty *prop)
@@ -715,6 +748,8 @@ cal_component_get_icalcomponent (CalComponent *comp)
 	g_return_val_if_fail (IS_CAL_COMPONENT (comp), NULL);
 
 	priv = comp->priv;
+	g_return_val_if_fail (priv->need_sequence_inc == FALSE, NULL);
+
 	return priv->icalcomp;
 }
 
diff --git a/calendar/cal-util/cal-component.h b/calendar/cal-util/cal-component.h
index 7c12d8a980..1fc1d455d4 100644
--- a/calendar/cal-util/cal-component.h
+++ b/calendar/cal-util/cal-component.h
@@ -126,6 +126,8 @@ char *cal_component_gen_uid (void);
 
 CalComponent *cal_component_new (void);
 
+CalComponent *cal_component_clone (CalComponent *comp);
+
 void cal_component_set_new_vtype (CalComponent *comp, CalComponentVType type);
 
 gboolean cal_component_set_icalcomponent (CalComponent *comp, icalcomponent *icalcomp);