2 translator-group.cc -- implement Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "translator-group.hh"
11 #include "output-def.hh"
13 #include "scm-hash.hh"
14 #include "context-def.hh"
21 Translator_group::get_daddy_translator () const
23 return context ()->get_parent_context ()->implementation ();
27 translator_each (SCM list, Translator_method method)
29 for (SCM p = list; scm_is_pair (p); p = scm_cdr (p))
30 (unsmob_translator (scm_car (p))->*method) ();
34 Translator_group::initialize ()
36 precompute_method_bindings ();
38 SCM tab = scm_make_vector (scm_int2num (19), SCM_BOOL_F);
39 context ()->set_property ("acceptHashTable", tab);
43 Translator_group::finalize ()
48 translator_accepts_any_of (Translator *tr, SCM ifaces)
50 SCM ack_ifs = scm_assoc (ly_symbol2scm ("events-accepted"),
51 tr->translator_description ());
52 ack_ifs = scm_cdr (ack_ifs);
53 for (SCM s = ifaces; scm_is_pair (s); s = scm_cdr (s))
54 if (scm_c_memq (scm_car (s), ack_ifs) != SCM_BOOL_F)
60 find_accept_translators (SCM gravlist, SCM ifaces)
63 for (SCM s = gravlist; scm_is_pair (s); s = scm_cdr (s))
65 Translator *tr = unsmob_translator (scm_car (s));
66 if (translator_accepts_any_of (tr, ifaces))
67 l = scm_cons (tr->self_scm (), l);
69 l = scm_reverse_x (l, SCM_EOL);
75 Translator_group::try_music (Music *m)
77 SCM tab = context ()->get_property ("acceptHashTable");
78 SCM name = scm_sloppy_assq (ly_symbol2scm ("name"),
79 m->get_property_alist (false));
81 if (!scm_is_pair (name))
84 name = scm_cdr (name);
85 SCM accept_list = scm_hashq_ref (tab, name, SCM_UNDEFINED);
86 if (accept_list == SCM_BOOL_F)
88 accept_list = find_accept_translators (get_simple_trans_list (),
89 m->get_property ("types"));
90 scm_hashq_set_x (tab, name, accept_list);
93 for (SCM p = accept_list; scm_is_pair (p); p = scm_cdr (p))
95 Translator *t = unsmob_translator (scm_car (p));
96 if (t && t->try_music (m))
103 Translator_group::get_simple_trans_list ()
105 return simple_trans_list_;
110 precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir)
113 = dynamic_cast<Translator_group *> (c->implementation ());
117 tg->precomputed_translator_foreach (idx);
118 tg->call_precomputed_self_method (idx);
121 for (SCM s = c->children_contexts (); scm_is_pair (s);
124 precomputed_recurse_over_translators (unsmob_context (scm_car (s)), idx, dir);
129 tg->precomputed_translator_foreach (idx);
130 tg->call_precomputed_self_method (idx);
136 recurse_over_translators (Context *c, Translator_method ptr, Translator_group_method tg_ptr, Direction dir)
139 = dynamic_cast<Translator_group *> (c->implementation ());
144 translator_each (tg->get_simple_trans_list (), ptr);
147 for (SCM s = c->children_contexts (); scm_is_pair (s);
150 recurse_over_translators (unsmob_context (scm_car (s)), ptr, tg_ptr, dir);
155 translator_each (tg->get_simple_trans_list (),
162 Translator_group::Translator_group ()
164 simple_trans_list_ = SCM_EOL;
170 Translator_group::derived_mark () const
176 Translator_group::precompute_method_bindings ()
178 for (SCM s = simple_trans_list_; scm_is_pair (s); s = scm_cdr (s))
180 Translator *tr = unsmob_translator (scm_car (s));
181 Translator_void_method_ptr ptrs[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
182 tr->fetch_precomputable_methods (ptrs);
185 for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
189 precomputed_method_bindings_[i].push (Translator_method_binding (tr, ptrs[i]));
194 fetch_precomputable_methods (precomputed_self_method_bindings_);
198 Translator_group::precomputed_translator_foreach (Translator_precompute_index idx)
200 Array<Translator_method_binding> &bindings(precomputed_method_bindings_[idx]);
201 for (int i = 0; i < bindings.size (); i++)
203 bindings[i].invoke ();
208 Translator_group::fetch_precomputable_methods (Translator_group_void_method ptrs[])
210 for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
215 Translator_group::call_precomputed_self_method (Translator_precompute_index idx)
217 if (precomputed_self_method_bindings_[idx])
218 (*precomputed_self_method_bindings_[idx])(this);
222 Translator_group::~Translator_group ()
226 #include "ly-smobs.icc"
228 IMPLEMENT_SMOBS (Translator_group);
229 IMPLEMENT_DEFAULT_EQUAL_P (Translator_group);
230 IMPLEMENT_TYPE_P (Translator_group, "ly:translator-group?");
234 Translator_group::print_smob (SCM s, SCM port, scm_print_state *)
236 Translator_group *me = (Translator_group *) SCM_CELL_WORD_1 (s);
237 scm_puts ("#<Translator_group ", port);
238 scm_puts (classname (me), port);
239 scm_display (me->simple_trans_list_, port);
240 scm_puts (" >", port);
246 Translator_group::mark_smob (SCM smob)
248 Translator_group *me = (Translator_group*)SCM_CELL_WORD_1 (smob);
252 return me->simple_trans_list_;