2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "dispatcher.hh"
22 #include "engraver-group.hh"
24 #include "paper-score.hh"
25 #include "translator-dispatch-list.hh"
28 IMPLEMENT_LISTENER (Engraver_group, override);
30 Engraver_group::override (SCM sev)
32 Stream_event *ev = unsmob_stream_event (sev);
34 sloppy_general_pushpop_property (context (),
35 ev->get_property ("symbol"),
36 ev->get_property ("property-path"),
37 ev->get_property ("value"));
40 IMPLEMENT_LISTENER (Engraver_group, revert);
42 Engraver_group::revert (SCM sev)
44 Stream_event *ev = unsmob_stream_event (sev);
46 sloppy_general_pushpop_property (context (),
47 ev->get_property ("symbol"),
48 ev->get_property ("property-path"),
53 Engraver_group::connect_to_context (Context *c)
55 Translator_group::connect_to_context (c);
56 c->event_source ()->add_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
57 c->event_source ()->add_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
61 Engraver_group::disconnect_from_context ()
63 context ()->event_source ()->remove_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
64 context ()->event_source ()->remove_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
65 Translator_group::disconnect_from_context ();
69 Engraver_group::announce_grob (Grob_info info)
71 announce_infos_.push_back (info);
73 Context *dad_con = context_->get_parent_context ();
74 if (info.rerouting_daddy_context_)
76 dad_con = info.rerouting_daddy_context_;
77 info.rerouting_daddy_context_ = 0;
80 Engraver_group *dad_eng
82 ? dynamic_cast<Engraver_group *> (dad_con->implementation ())
86 dad_eng->announce_grob (info);
90 Engraver_group::acknowledge_grobs ()
92 if (!announce_infos_.size ())
95 SCM name_sym = ly_symbol2scm ("name");
96 SCM meta_sym = ly_symbol2scm ("meta");
98 for (vsize j = 0; j < announce_infos_.size (); j++)
100 Grob_info info = announce_infos_[j];
102 SCM meta = info.grob ()->internal_get_property (meta_sym);
103 SCM nm = scm_assoc (name_sym, meta);
104 if (scm_is_pair (nm))
109 SCM acklist = scm_hashq_ref (acknowledge_hash_table_drul_[info.start_end ()],
112 Engraver_dispatch_list *dispatch
113 = Engraver_dispatch_list::unsmob (acklist);
115 if (acklist == SCM_BOOL_F)
118 = scm_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta));
119 acklist = Engraver_dispatch_list::create (get_simple_trans_list (),
120 ifaces, info.start_end ());
123 = Engraver_dispatch_list::unsmob (acklist);
125 scm_hashq_set_x (acknowledge_hash_table_drul_[info.start_end ()], nm, acklist);
129 dispatch->apply (info);
134 Ugh. This is slightly expensive. We could/should cache the value of
138 Engraver_group::pending_grob_count () const
140 int count = announce_infos_.size ();
141 for (SCM s = context_->children_contexts ();
142 scm_is_pair (s); s = scm_cdr (s))
144 Context *c = unsmob_context (scm_car (s));
145 Engraver_group *group
146 = dynamic_cast<Engraver_group *> (c->implementation ());
149 count += group->pending_grob_count ();
155 Engraver_group::do_announces ()
160 DOCME: why is this inside the loop?
162 for (SCM s = context ()->children_contexts ();
163 scm_is_pair (s); s = scm_cdr (s))
165 Context *c = unsmob_context (scm_car (s));
166 Engraver_group *group
167 = dynamic_cast<Engraver_group *> (c->implementation ());
169 group->do_announces ();
174 precomputed_translator_foreach (PROCESS_ACKNOWLEDGED);
175 if (announce_infos_.size () == 0)
178 acknowledge_grobs ();
179 announce_infos_.clear ();
182 while (pending_grob_count () > 0);
185 Engraver_group::Engraver_group ()
187 acknowledge_hash_table_drul_[LEFT]
188 = acknowledge_hash_table_drul_[RIGHT]
191 acknowledge_hash_table_drul_[LEFT] = scm_c_make_hash_table (61);
192 acknowledge_hash_table_drul_[RIGHT] = scm_c_make_hash_table (61);
195 #include "translator.icc"
197 ADD_TRANSLATOR_GROUP (Engraver_group,
199 "A group of engravers taken together.",
212 Engraver_group::derived_mark () const
214 scm_gc_mark (acknowledge_hash_table_drul_[LEFT]);
215 scm_gc_mark (acknowledge_hash_table_drul_[RIGHT]);