2 pointer-group-interface.cc -- implement Pointer_group_interface
4 source file of the GNU LilyPond music typesetter
6 (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "pointer-group-interface.hh"
11 #include "lily-proto.hh"
13 #include "grob-array.hh"
17 Pointer_group_interface::count (Grob *me, SCM sym)
19 Grob_array *arr = unsmob_grob_array (me->internal_get_object (sym));
20 return arr ? arr->size () : 0;
24 Pointer_group_interface::add_grob (Grob *me, SCM sym, SCM p)
26 add_grob (me, sym, unsmob_grob (p));
30 Pointer_group_interface::add_grob (Grob *me, SCM sym, Grob *p)
32 SCM scm_arr = me->internal_get_object (sym);
33 Grob_array *arr = unsmob_grob_array (scm_arr);
36 scm_arr = Grob_array::make_array ();
37 arr = unsmob_grob_array (scm_arr);
38 me->internal_set_object (sym, scm_arr);
43 static Link_array<Grob> empty_array;
45 Link_array<Grob> const &
46 ly_scm2link_array (SCM x)
48 Grob_array *arr = unsmob_grob_array (x);
49 return arr ? arr->array () : empty_array;
52 Link_array<Grob> const &
53 internal_extract_grob_array (Grob const *elt, SCM symbol)
55 return ly_scm2link_array (elt->internal_get_object (symbol));
59 internal_extract_item_array (Grob const *elt, SCM symbol)
61 Grob_array *arr = unsmob_grob_array (elt->internal_get_object (symbol));
62 Link_array<Item> items;
63 for (vsize i = 0; arr && i < arr->size (); i++)
64 items.push_back (arr->item (i));