2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2013 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"
35 Slur_proto_engraver::derived_mark () const
37 for (vsize i = start_events_.size (); i--;)
38 scm_gc_mark (start_events_[i]->self_scm ());
39 for (vsize i = stop_events_.size (); i--;)
40 scm_gc_mark (stop_events_[i]->self_scm ());
44 Slur_proto_engraver::internal_listen_slur (Stream_event *ev)
46 Direction d = to_dir (ev->get_property ("span-direction"));
48 start_events_.push_back (ev);
50 stop_events_.push_back (ev);
51 else ev->origin ()->warning (_f ("direction of %s invalid: %d",
52 event_name_, int (d)));
56 Slur_proto_engraver::internal_listen_break_slur (Stream_event *ev)
58 // if break_slur_ is set, we only keep events with direction
60 && robust_scm2dir (ev->get_property ("span-direction"), CENTER))
62 else if (!break_slur_)
65 && robust_scm2dir (break_slur_->get_property ("span-direction"), CENTER)
66 && robust_scm2dir (ev->get_property ("span-direction"), CENTER))
67 ev->origin ()->warning (_f ("cannot set break slur with two directions"));
72 Slur_proto_engraver::acknowledge_note_column (Grob_info info)
74 Grob *e = info.grob ();
75 for (vsize i = slurs_.size (); i--;)
76 Slur::add_column (slurs_[i], e);
77 for (vsize i = end_slurs_.size (); i--;)
78 Slur::add_column (end_slurs_[i], e);
82 Slur_proto_engraver::acknowledge_extra_object (Grob_info info)
84 objects_to_acknowledge_.push_back (info);
88 Slur_proto_engraver::acknowledge_inline_accidental (Grob_info info)
90 acknowledge_extra_object (info);
94 Slur_proto_engraver::acknowledge_dots (Grob_info info)
96 acknowledge_extra_object (info);
100 Slur_proto_engraver::acknowledge_fingering (Grob_info info)
102 acknowledge_extra_object (info);
106 Slur_proto_engraver::acknowledge_tuplet_number (Grob_info info)
108 acknowledge_extra_object (info);
112 Slur_proto_engraver::acknowledge_script (Grob_info info)
114 if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
115 acknowledge_extra_object (info);
119 Slur_proto_engraver::acknowledge_text_script (Grob_info info)
121 acknowledge_extra_object (info);
125 Slur_proto_engraver::acknowledge_end_tie (Grob_info info)
127 acknowledge_extra_object (info);
131 Slur_proto_engraver::finalize ()
133 for (vsize i = 0; i < slurs_.size (); i++)
135 slurs_[i]->warning (_f ("unterminated %s", object_name_));
136 slurs_[i]->suicide ();
142 Slur_proto_engraver::create_slur (string spanner_id, Stream_event *ev_cause, Grob *g_cause, Direction dir, bool left_broken)
144 Grob *ccc = unsmob_grob (get_property ("currentCommandColumn"));
145 SCM cause = ev_cause ? ev_cause->self_scm () : g_cause->self_scm ();
146 Spanner *slur = make_spanner (grob_name_, cause);
147 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
149 set_grob_direction (slur, dir);
151 slur->set_bound (LEFT, ccc);
152 slurs_.push_back (slur);
153 if (double_property_name_
154 && to_boolean (get_property (double_property_name_)))
156 set_grob_direction (slur, DOWN);
157 slur = make_spanner (grob_name_, cause);
158 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
159 set_grob_direction (slur, UP);
161 slur->set_bound (LEFT, ccc);
162 slurs_.push_back (slur);
164 else if (g_cause && Slur::has_interface (g_cause) && left_broken)
166 g_cause->set_object ("other-half", slur->self_scm ());
167 slur->set_object ("other-half", g_cause->self_scm ());
172 Slur_proto_engraver::can_create_slur (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::break_slurs ()
250 for (vsize i = slurs_.size (); i--;)
252 Grob *ccc = unsmob_grob (get_property ("currentCommandColumn"));
253 Spanner *s = dynamic_cast<Spanner *> (slurs_[i]);
254 s->set_bound (RIGHT, ccc);
255 announce_end_grob (s, SCM_EOL);
256 slurs_.erase (slurs_.begin () + i);
257 SCM maybe_dir = s->get_property_data ("direction");
258 Direction dir = is_direction (maybe_dir)
259 ? robust_scm2dir (maybe_dir, CENTER)
261 create_slur (robust_scm2string (s->get_property ("spanner-id"), ""),
267 Slur_proto_engraver::process_music ()
269 // break slurs that span over this column
270 // if break_slur_'s direction is center
272 && robust_scm2dir (break_slur_->get_property ("span-direction"), CENTER) == CENTER
273 && unsmob_grob (get_property ("currentCommandColumn")))
276 // create broken slurs starting at this column if break_slur_ is left
277 vsize old_slurs = slurs_.size ();
279 && robust_scm2dir (break_slur_->get_property ("span-direction"), CENTER) == LEFT
280 && can_create_slur ("", old_slurs, 0, break_slur_))
281 create_slur ("", break_slur_, 0,
282 robust_scm2dir (break_slur_->get_property ("direction"), CENTER),
285 for (vsize i = 0; i < stop_events_.size (); i++)
287 string id = robust_scm2string (stop_events_[i]->get_property ("spanner-id"), "");
288 bool ended = try_to_end (stop_events_[i]);
291 // Ignore redundant stop events for this id
292 for (vsize j = stop_events_.size (); --j > i;)
294 if (id == robust_scm2string (stop_events_[j]->get_property ("spanner-id"), ""))
295 stop_events_.erase (stop_events_.begin () + j);
299 stop_events_[i]->origin ()->warning (_f ("cannot end %s", object_name_));
301 old_slurs = slurs_.size ();
303 for (vsize i = start_events_.size (); i--;)
305 Stream_event *ev = start_events_[i];
306 string id = robust_scm2string (ev->get_property ("spanner-id"), "");
307 Direction updown = to_dir (ev->get_property ("direction"));
308 if (can_create_slur (id, old_slurs, &i, ev))
309 create_slur (id, ev, 0, updown, false);
312 // if BreakSlurEvent with span-dir right, we end here
314 && robust_scm2dir (break_slur_->get_property ("span-direction"), CENTER) == RIGHT)
315 (void) try_to_end (break_slur_);
317 set_melisma (slurs_.size ());
321 Slur_proto_engraver::set_melisma (bool)
326 Slur_proto_engraver::stop_translation_timestep ()
328 if (Grob *g = unsmob_grob (get_property ("currentCommandColumn")))
330 for (vsize i = 0; i < end_slurs_.size (); i++)
331 Slur::add_extra_encompass (end_slurs_[i], g);
333 if (!start_events_.size ())
334 for (vsize i = 0; i < slurs_.size (); i++)
335 Slur::add_extra_encompass (slurs_[i], g);
338 for (vsize i = 0; i < end_slurs_.size (); i++)
340 Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
341 if (!s->get_bound (RIGHT))
342 s->set_bound (RIGHT, unsmob_grob (get_property ("currentMusicalColumn")));
343 // if BreakSlurEvent with span-dir right,
344 // we set right bound to current command column
346 && robust_scm2dir (break_slur_->get_property ("span-direction"), CENTER) == RIGHT)
347 s->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
348 announce_end_grob (s, SCM_EOL);
351 for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
352 Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
354 objects_to_acknowledge_.clear ();
356 start_events_.clear ();
357 stop_events_.clear ();
361 // no ADD_ACKNOWLEDGER / ADD_TRANSLATOR macro calls
362 // since this class is abstract