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--;)
40 scm_gc_mark (start_events_[i]->self_scm ());
41 for (vsize i = stop_events_.size (); i--;)
42 scm_gc_mark (stop_events_[i]->self_scm ());
46 Slur_proto_engraver::listen_slur (Stream_event *ev)
48 Direction d = to_dir (ev->get_property ("span-direction"));
50 start_events_.push_back (ev);
52 stop_events_.push_back (ev);
53 else ev->origin ()->warning (_f ("direction of %s invalid: %d",
54 event_name_, int (d)));
58 Slur_proto_engraver::acknowledge_note_column (Grob_info info)
60 Grob *e = info.grob ();
61 for (vsize i = slurs_.size (); i--;)
62 Slur::add_column (slurs_[i], e);
63 for (vsize i = end_slurs_.size (); i--;)
64 Slur::add_column (end_slurs_[i], e);
68 Slur_proto_engraver::acknowledge_extra_object (Grob_info info)
70 objects_to_acknowledge_.push_back (info);
74 Slur_proto_engraver::acknowledge_inline_accidental (Grob_info info)
76 acknowledge_extra_object (info);
80 Slur_proto_engraver::acknowledge_dots (Grob_info info)
82 acknowledge_extra_object (info);
86 Slur_proto_engraver::acknowledge_fingering (Grob_info info)
88 acknowledge_extra_object (info);
92 Slur_proto_engraver::acknowledge_tuplet_number (Grob_info info)
94 acknowledge_extra_object (info);
98 Slur_proto_engraver::acknowledge_script (Grob_info info)
100 if (!info.grob ()->internal_has_interface (ly_symbol2scm ("dynamic-interface")))
101 acknowledge_extra_object (info);
105 Slur_proto_engraver::acknowledge_text_script (Grob_info info)
107 acknowledge_extra_object (info);
111 Slur_proto_engraver::acknowledge_end_tie (Grob_info info)
113 acknowledge_extra_object (info);
117 Slur_proto_engraver::finalize ()
119 for (vsize i = 0; i < slurs_.size (); i++)
121 slurs_[i]->warning (_f ("unterminated %s", object_name_));
122 slurs_[i]->suicide ();
128 Slur_proto_engraver::create_slur (const string &spanner_id, Stream_event *ev_cause, Grob *g_cause, Direction dir, bool left_broken)
130 Grob *ccc = unsmob<Grob> (get_property ("currentCommandColumn"));
131 SCM cause = ev_cause ? ev_cause->self_scm () : g_cause->self_scm ();
132 Spanner *slur = make_spanner (grob_name_, cause);
133 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
135 set_grob_direction (slur, dir);
137 slur->set_bound (LEFT, ccc);
138 slurs_.push_back (slur);
139 if (double_property_name_
140 && to_boolean (get_property (double_property_name_)))
142 set_grob_direction (slur, DOWN);
143 slur = make_spanner (grob_name_, cause);
144 slur->set_property ("spanner-id", ly_string2scm (spanner_id));
145 set_grob_direction (slur, UP);
147 slur->set_bound (LEFT, ccc);
148 slurs_.push_back (slur);
154 Slur_proto_engraver::can_create_slur (const string &id, vsize old_slurs, vsize *event_idx, Stream_event *ev)
156 for (vsize j = slurs_.size (); j--;)
158 Grob *slur = slurs_[j];
159 Direction updown = to_dir (ev->get_property ("direction"));
161 // Check if we already have a slur with the same spanner-id.
162 if (id == robust_scm2string (slur->get_property ("spanner-id"), ""))
166 // We already have an old slur, so give a warning
167 // and completely ignore the new slur.
168 ev->origin ()->warning (_f ("already have %s", object_name_));
170 start_events_.erase (start_events_.begin () + (*event_idx));
174 // If this slur event has no direction, it will not
175 // contribute anything new to the existing slur(s), so
181 Stream_event *c = unsmob<Stream_event> (slur->get_property ("cause"));
185 slur->programming_error (_f ("%s without a cause", object_name_));
189 Direction slur_dir = to_dir (c->get_property ("direction"));
191 // If the existing slur does not have a direction yet,
192 // we'd rather take the new one.
197 slurs_.erase (slurs_.begin () + j);
201 // If the existing slur has the same direction as ours, drop ours
203 if (slur_dir == updown)
211 Slur_proto_engraver::try_to_end (Stream_event *ev)
213 string id = robust_scm2string (ev->get_property ("spanner-id"), "");
215 // Find the slurs that are ended with this event (by checking the spanner-id)
217 for (vsize j = slurs_.size (); j--;)
219 if (id == robust_scm2string (slurs_[j]->get_property ("spanner-id"), ""))
222 end_slurs_.push_back (slurs_[j]);
223 slurs_.erase (slurs_.begin () + j);
230 Slur_proto_engraver::process_music ()
232 for (vsize i = 0; i < stop_events_.size (); i++)
234 string id = robust_scm2string (stop_events_[i]->get_property ("spanner-id"), "");
235 bool ended = try_to_end (stop_events_[i]);
238 // Ignore redundant stop events for this id
239 for (vsize j = stop_events_.size (); --j > i;)
241 if (id == robust_scm2string (stop_events_[j]->get_property ("spanner-id"), ""))
242 stop_events_.erase (stop_events_.begin () + j);
246 stop_events_[i]->origin ()->warning (_f ("cannot end %s", object_name_));
249 vsize old_slurs = slurs_.size ();
250 for (vsize i = start_events_.size (); i--;)
252 Stream_event *ev = start_events_[i];
253 string id = robust_scm2string (ev->get_property ("spanner-id"), "");
254 Direction updown = to_dir (ev->get_property ("direction"));
256 if (can_create_slur (id, old_slurs, &i, ev))
257 create_slur (id, ev, 0, updown, false);
260 set_melisma (slurs_.size ());
264 Slur_proto_engraver::set_melisma (bool)
269 Slur_proto_engraver::stop_translation_timestep ()
271 if (Grob *g = unsmob<Grob> (get_property ("currentCommandColumn")))
273 for (vsize i = 0; i < end_slurs_.size (); i++)
274 Slur::add_extra_encompass (end_slurs_[i], g);
276 if (!start_events_.size ())
277 for (vsize i = 0; i < slurs_.size (); i++)
278 Slur::add_extra_encompass (slurs_[i], g);
281 for (vsize i = 0; i < end_slurs_.size (); i++)
283 Spanner *s = dynamic_cast<Spanner *> (end_slurs_[i]);
284 if (!s->get_bound (RIGHT))
285 s->set_bound (RIGHT, unsmob<Grob> (get_property ("currentMusicalColumn")));
286 announce_end_grob (s, SCM_EOL);
289 for (vsize i = 0; i < objects_to_acknowledge_.size (); i++)
290 Slur::auxiliary_acknowledge_extra_object (objects_to_acknowledge_[i], slurs_, end_slurs_);
292 objects_to_acknowledge_.clear ();
294 start_events_.clear ();
295 stop_events_.clear ();
298 // no ADD_ACKNOWLEDGER / ADD_TRANSLATOR macro calls
299 // since this class is abstract