2 pointer-group-interface.cc -- implement Pointer_group_interface
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "pointer-group-interface.hh"
12 #include "lily-proto.hh"
14 #include "grob-array.hh"
18 Pointer_group_interface::count (Grob *me, SCM sym)
20 Grob_array *arr = unsmob_grob_array (me->internal_get_object (sym));
21 return arr ? arr->size() : 0;
25 Pointer_group_interface::add_grob (Grob *me, SCM sym, SCM p)
27 add_grob (me, sym, unsmob_grob (p));
32 Pointer_group_interface::add_grob (Grob *me, SCM sym, Grob *p)
34 SCM scm_arr = me->internal_get_object (sym);
35 Grob_array *arr = unsmob_grob_array (scm_arr);
38 scm_arr = Grob_array::make_array ();
39 arr = unsmob_grob_array (scm_arr);
40 me->internal_set_object (sym, scm_arr);
45 static Link_array<Grob> empty_array;
47 Link_array<Grob> const &
48 ly_scm2link_array (SCM x)
50 Grob_array *arr = unsmob_grob_array (x);
51 return arr ? arr->array () : empty_array;
55 Link_array<Grob> const &
56 internal_extract_grob_array (Grob const *elt, SCM symbol)
58 return ly_scm2link_array (elt->internal_get_object (symbol));
62 internal_extract_item_array (Grob const *elt, SCM symbol)
64 Grob_array *arr = unsmob_grob_array (elt->internal_get_object (symbol));
65 Link_array<Item> items;
66 for (int i = 0; arr && i < arr->size (); i++)
68 items.push (arr->item (i));