-/*
- group-interface.cc -- implement Group_interface
-
+/*
+ group-interface.cc -- implement Group_interface
+
source file of the GNU LilyPond music typesetter
-
+
(c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+*/
#include "group-interface.hh"
+#include "item.hh"
void
-Group_interface::add_thing (Grob*me, SCM sym, SCM thing)
+Group_interface::add_thing (Grob *me, SCM sym, SCM thing)
{
me->add_to_list_property (sym, thing);
}
-
int
Group_interface::count (Grob *me, SCM sym)
{
return scm_ilength (me->internal_get_property (sym));
}
-
void
-Pointer_group_interface::add_grob (Grob*me, SCM name, Grob*p)
+Pointer_group_interface::add_grob (Grob *me, SCM name, Grob *p)
{
Group_interface::add_thing (me, name, p->self_scm ());
}
+
+Link_array<Grob>
+extract_grob_array (Grob const *elt, SCM symbol)
+{
+ Link_array<Grob> arr;
+
+ for (SCM s = elt->internal_get_property (symbol); scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM e = scm_car (s);
+ arr.push (unsmob_grob (e));
+ }
+
+ arr.reverse ();
+ return arr;
+}
+
+Link_array<Item>
+extract_item_array (Grob const *elt, SCM symbol)
+{
+ Link_array<Item> arr;
+ for (SCM s = elt->internal_get_property (symbol); scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM e = scm_car (s);
+ arr.push (dynamic_cast<Item *> (unsmob_grob (e)));
+ }
+
+ arr.reverse ();
+ return arr;
+}