2 Translator_group.cc -- implement Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "music-output-def.hh"
10 #include "translator-group.hh"
11 #include "translator.hh"
14 #include "scm-hash.hh"
15 #include "context-def.hh"
21 Translator_group::get_daddy_translator () const
24 = unsmob_translator (get_parent_context ()->get_parent_context ()->implementation_);
25 return dynamic_cast<Translator_group*> (t);
30 translator_each (SCM list, Translator_method method)
32 for (SCM p = list; ly_c_pair_p (p); p = ly_cdr (p))
33 (unsmob_translator (ly_car (p))->*method) ();
38 Translator_group::initialize ()
40 SCM tab = scm_make_vector (scm_int2num (19), SCM_BOOL_F);
41 get_parent_context ()->set_property ("acceptHashTable", tab);
46 translator_accepts_any_of (Translator*tr, SCM ifaces)
48 SCM ack_ifs = scm_assoc (ly_symbol2scm ("events-accepted"),
49 tr->translator_description ());
50 ack_ifs = ly_cdr (ack_ifs);
51 for (SCM s = ifaces; ly_c_pair_p (s); s = ly_cdr (s))
52 if (scm_c_memq (ly_car (s), ack_ifs) != SCM_BOOL_F)
58 find_accept_translators (SCM gravlist, SCM ifaces)
61 for (SCM s = gravlist; ly_c_pair_p (s); s = ly_cdr (s))
63 Translator* tr = unsmob_translator (ly_car (s));
64 if (translator_accepts_any_of (tr, ifaces))
65 l = scm_cons (tr->self_scm (), l);
67 l = scm_reverse_x (l, SCM_EOL);
73 Translator_group::try_music (Music* m)
75 SCM tab = get_property ("acceptHashTable");
76 SCM name = scm_sloppy_assq (ly_symbol2scm ("name"),
77 m->get_property_alist (false));
79 if (!ly_c_pair_p (name))
83 SCM accept_list = scm_hashq_ref (tab, name, SCM_UNDEFINED);
84 if (accept_list == SCM_BOOL_F)
86 accept_list = find_accept_translators (get_simple_trans_list (),
87 m->get_property ("types"));
88 scm_hashq_set_x (tab, name, accept_list);
91 for (SCM p = accept_list; ly_c_pair_p (p); p = ly_cdr (p))
93 Translator * t = unsmob_translator (ly_car (p));
94 if (t && t->try_music (m))
102 Translator_group::get_simple_trans_list ()
104 return simple_trans_list_;
108 recurse_over_translators (Context * c, Translator_method ptr, Direction dir)
110 Translator_group * tg
111 = dynamic_cast<Translator_group*> (unsmob_translator (c->implementation_));
119 translator_each (tg->get_simple_trans_list (),
125 for (SCM s = c->children_contexts () ; ly_c_pair_p (s);
128 recurse_over_translators (unsmob_context (ly_car (s)), ptr, dir);
133 translator_each (tg->get_simple_trans_list (),