2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2013--2015 Mike Solomon <mike@mikesolomon.org>
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/>.
20 #include "engraver.hh"
23 #include "directional-element-interface.hh"
24 #include "international.hh"
25 #include "note-column.hh"
27 #include "slur-proto-engraver.hh"
29 #include "stream-event.hh"
32 #include "translator.icc"
37 Slur_proto_engraver::derived_mark () const
39 for (vsize i = start_events_.size (); i--;)
41 scm_gc_mark (start_events_[i].slur_->self_scm ());
42 scm_gc_mark (start_events_[i].note_->self_scm ());
44 for (vsize i = stop_events_.size (); i--;)
46 scm_gc_mark (stop_events_[i].slur_->self_scm ());
47 scm_gc_mark (stop_events_[i].note_->self_scm ());
52 Slur_proto_engraver::listen_slur (Stream_event *ev, Stream_event *note)
54 Direction d = to_dir (ev->get_property ("span-direction"));
56 start_events_.push_back (Event_info (ev, note));
58 stop_events_.push_back (Event_info (ev, note));
59 else ev->origin ()->warning (_f ("direction of %s invalid: %d",
60 event_name_, int (d)));
64 Slur_proto_engraver::listen_note (Stream_event *ev)
66 for (SCM arts = ev->get_property ("articulations");
67 scm_is_pair (arts); arts = scm_cdr (arts))
69 Stream_event *art = unsmob<Stream_event> (scm_car (arts));
70 if (art->in_event_class (event_symbol ()))
71 listen_slur (art, ev);
76 Slur_proto_engraver::acknowledge_note_column (Grob_info info)
78 Grob *e = info.grob ();
79 for (vsize i = slurs_.size (); i--;)
80 Slur::add_column (slurs_[i], e);
81 for (vsize i = end_slurs_.size (); i--;)
82 Slur::add_column (end_slurs_[i], e);
86 Slur_proto_engraver::acknowledge_extra_object (Grob_info info)
88 objects_to_acknowledge_.push_back (info);
92 Slur_proto_engraver::acknowledge_inline_accidental (Grob_info info)
94 acknowledge_extra_object (info);
98 Slur_proto_engraver::acknowledge_dots (Grob_info info)
100 acknowledge_extra_object (info);
104 Slur_proto_engraver::acknowledge_fingering (Grob_info info)
106 acknowledge_extra_object (info);
110 Slur_proto_engraver::acknowledge_tuplet_number (Grob_info info)
112 acknowledge_extra_object (info);
116 Slur_proto_engraver::acknowledge_script (Grob_info info)
118 if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
119 acknowledge_extra_object (info);
123 Slur_proto_engraver::acknowledge_text_script (Grob_info info)
125 acknowledge_extra_object (info);
129 Slur_proto_engraver::acknowledge_end_tie (Grob_info info)
131 acknowledge_extra_object (info);
135 Slur_proto_engraver::finalize ()
137 for (vsize i = 0; i < slurs_.size (); i++)
139 slurs_[i]->warning (_f ("unterminated %s", object_name_));
140 slurs_[i]->suicide ();
146 Slur_proto_engraver::create_slur (const string &spanner_id, Stream_event *ev_cause, Grob *g_cause, Direction dir, bool left_broken)
148 Grob *ccc = unsmob<Grob> (get_property ("currentCommandColumn"));
149 SCM cause = ev_cause ? ev_cause->self_scm () : g_cause->self_scm ();
150 Spanner *slur = make_spanner (grob_name_, cause);
151 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
153 set_grob_direction (slur, dir);
155 slur->set_bound (LEFT, ccc);
156 slurs_.push_back (slur);
157 if (double_property_name_
158 && to_boolean (get_property (double_property_name_)))
160 set_grob_direction (slur, DOWN);
161 slur = make_spanner (grob_name_, cause);
162 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
163 set_grob_direction (slur, UP);
165 slur->set_bound (LEFT, ccc);
166 slurs_.push_back (slur);
172 Slur_proto_engraver::can_create_slur (const string &id, vsize old_slurs, vsize *event_idx, Stream_event *ev)
174 for (vsize j = slurs_.size (); j--;)
176 Grob *slur = slurs_[j];
177 Direction updown = to_dir (ev->get_property ("direction"));
179 // Check if we already have a slur with the same spanner-id.
180 if (id == robust_scm2string (slur->get_property ("spanner-id"), ""))
184 // We already have an old slur, so give a warning
185 // and completely ignore the new slur.
186 ev->origin ()->warning (_f ("already have %s", object_name_));
188 start_events_.erase (start_events_.begin () + (*event_idx));
192 // If this slur event has no direction, it will not
193 // contribute anything new to the existing slur(s), so
199 Stream_event *c = unsmob<Stream_event> (slur->get_property ("cause"));
203 slur->programming_error (_f ("%s without a cause", object_name_));
207 Direction slur_dir = to_dir (c->get_property ("direction"));
209 // If the existing slur does not have a direction yet,
210 // we'd rather take the new one.
215 slurs_.erase (slurs_.begin () + j);
219 // If the existing slur has the same direction as ours, drop ours
221 if (slur_dir == updown)
229 Slur_proto_engraver::try_to_end (Stream_event *ev)
231 string id = robust_scm2string (ev->get_property ("spanner-id"), "");
233 // Find the slurs that are ended with this event (by checking the spanner-id)
235 for (vsize j = slurs_.size (); j--;)
237 if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
240 end_slurs_.push_back (slurs_[j]);
241 slurs_.erase (slurs_.begin () + j);
248 Slur_proto_engraver::process_music ()
250 for (vsize i = 0; i < stop_events_.size (); i++)
252 string id = robust_scm2string
253 (stop_events_[i].slur_->get_property ("spanner-id"), "");
254 bool ended = try_to_end (stop_events_[i].slur_);
257 // Ignore redundant stop events for this id
258 for (vsize j = stop_events_.size (); --j > i;)
260 if (id == robust_scm2string
261 (stop_events_[j].slur_->get_property ("spanner-id"), ""))
262 stop_events_.erase (stop_events_.begin () + j);
266 stop_events_[i].slur_->origin ()->warning (_f ("cannot end %s", object_name_));
269 vsize old_slurs = slurs_.size ();
270 for (vsize i = start_events_.size (); i--;)
272 Stream_event *ev = start_events_[i].slur_;
273 string id = robust_scm2string (ev->get_property ("spanner-id"), "");
274 Direction updown = to_dir (ev->get_property ("direction"));
276 if (can_create_slur (id, old_slurs, &i, ev))
277 create_slur (id, ev, 0, updown, false);
280 set_melisma (slurs_.size ());
284 Slur_proto_engraver::set_melisma (bool)
289 Slur_proto_engraver::stop_translation_timestep ()
291 if (Grob *g = unsmob<Grob> (get_property ("currentCommandColumn")))
293 for (vsize i = 0; i < end_slurs_.size (); i++)
294 Slur::add_extra_encompass (end_slurs_[i], g);
296 if (!start_events_.size ())
297 for (vsize i = 0; i < slurs_.size (); i++)
298 Slur::add_extra_encompass (slurs_[i], g);
301 for (vsize i = 0; i < end_slurs_.size (); i++)
303 Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
304 if (!s->get_bound (RIGHT))
305 s->set_bound (RIGHT, unsmob<Grob> (get_property ("currentMusicalColumn")));
306 announce_end_grob (s, SCM_EOL);
309 for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
310 Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
312 objects_to_acknowledge_.clear ();
314 start_events_.clear ();
315 stop_events_.clear ();
318 // no ADD_ACKNOWLEDGER / ADD_TRANSLATOR macro calls
319 // since this class is abstract