2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1997--2015 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 "grob-properties.hh"
25 #include "paper-score.hh"
26 #include "translator-dispatch-list.hh"
30 Engraver_group::override (SCM sev)
32 Stream_event *ev = unsmob<Stream_event> (sev);
34 Grob_property_info (context (), ev->get_property ("symbol"))
35 .push (ev->get_property ("property-path"),
36 ev->get_property ("value"));
40 Engraver_group::revert (SCM sev)
42 Stream_event *ev = unsmob<Stream_event> (sev);
44 Grob_property_info (context (), ev->get_property ("symbol"))
45 .pop (ev->get_property ("property-path"));
49 Engraver_group::connect_to_context (Context *c)
51 Translator_group::connect_to_context (c);
52 c->event_source ()->add_listener (GET_LISTENER (Engraver_group, override), ly_symbol2scm ("Override"));
53 c->event_source ()->add_listener (GET_LISTENER (Engraver_group, revert), ly_symbol2scm ("Revert"));
57 Engraver_group::disconnect_from_context ()
59 context ()->event_source ()->remove_listener (GET_LISTENER (Engraver_group, override), ly_symbol2scm ("Override"));
60 context ()->event_source ()->remove_listener (GET_LISTENER (Engraver_group, revert), ly_symbol2scm ("Revert"));
61 Translator_group::disconnect_from_context ();
65 Engraver_group::announce_grob (Grob_info info)
67 announce_infos_.push_back (info);
69 Context *dad_con = context_->get_parent_context ();
70 if (info.rerouting_daddy_context_)
72 dad_con = info.rerouting_daddy_context_;
73 info.rerouting_daddy_context_ = 0;
76 Engraver_group *dad_eng
78 ? dynamic_cast<Engraver_group *> (dad_con->implementation ())
82 dad_eng->announce_grob (info);
86 Engraver_group::acknowledge_grobs ()
88 if (!announce_infos_.size ())
91 SCM name_sym = ly_symbol2scm ("name");
93 for (vsize j = 0; j < announce_infos_.size (); j++)
95 Grob_info info = announce_infos_[j];
97 SCM meta = info.grob ()->get_property ("meta");
98 SCM nm = scm_assoc (name_sym, meta);
104 SCM ackhandle = scm_hashq_create_handle_x (acknowledge_hash_table_drul_[info.start_end ()],
107 SCM acklist = scm_cdr (ackhandle);
109 if (scm_is_false (acklist))
112 = scm_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta));
113 acklist = Engraver_dispatch_list::create (get_simple_trans_list (),
114 ifaces, info.start_end ());
116 scm_set_cdr_x (ackhandle, acklist);
119 Engraver_dispatch_list *dispatch
120 = unsmob<Engraver_dispatch_list> (acklist);
123 dispatch->apply (info);
128 Ugh. This is slightly expensive. We could/should cache the value of
132 Engraver_group::pending_grobs () const
134 if (!announce_infos_.empty ())
136 for (SCM s = context_->children_contexts ();
137 scm_is_pair (s); s = scm_cdr (s))
139 Context *c = unsmob<Context> (scm_car (s));
140 Engraver_group *group
141 = dynamic_cast<Engraver_group *> (c->implementation ());
143 if (group && group->pending_grobs ())
150 Engraver_group::do_announces ()
155 DOCME: why is this inside the loop?
157 for (SCM s = context ()->children_contexts ();
158 scm_is_pair (s); s = scm_cdr (s))
160 Context *c = unsmob<Context> (scm_car (s));
161 Engraver_group *group
162 = dynamic_cast<Engraver_group *> (c->implementation ());
164 group->do_announces ();
169 precomputed_translator_foreach (PROCESS_ACKNOWLEDGED);
170 if (announce_infos_.size () == 0)
173 acknowledge_grobs ();
174 announce_infos_.clear ();
177 while (pending_grobs ());
180 Engraver_group::Engraver_group ()
182 acknowledge_hash_table_drul_[LEFT]
183 = acknowledge_hash_table_drul_[RIGHT]
186 acknowledge_hash_table_drul_[LEFT] = scm_c_make_hash_table (61);
187 acknowledge_hash_table_drul_[RIGHT] = scm_c_make_hash_table (61);
190 #include "translator.icc"
192 ADD_TRANSLATOR_GROUP (Engraver_group,
194 "A group of engravers taken together.",
207 Engraver_group::derived_mark () const
209 scm_gc_mark (acknowledge_hash_table_drul_[LEFT]);
210 scm_gc_mark (acknowledge_hash_table_drul_[RIGHT]);