2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1998--2009 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/>.
20 #include "engraver.hh"
22 #include "international.hh"
23 #include "rhythmic-head.hh"
24 #include "script-interface.hh"
25 #include "self-alignment-interface.hh"
26 #include "side-position-interface.hh"
28 #include "stream-event.hh"
32 #include "translator.icc"
40 Stream_event *note_event_;
41 Stream_event *finger_event_;
42 bool follow_into_staff_;
49 note_event_ = finger_event_ = 0;
50 follow_into_staff_ = false;
55 operator< (Finger_tuple const &a, Finger_tuple const &b)
57 return a.position_ < b.position_;
60 class New_fingering_engraver : public Engraver
62 vector<Finger_tuple> fingerings_;
63 vector<Finger_tuple> stroke_fingerings_;
64 vector<Finger_tuple> articulations_;
65 vector<Finger_tuple> string_numbers_;
72 TRANSLATOR_DECLARATIONS (New_fingering_engraver);
74 void stop_translation_timestep ();
75 DECLARE_ACKNOWLEDGER (rhythmic_head);
76 DECLARE_ACKNOWLEDGER (stem);
77 void add_fingering (Grob *, SCM,
78 vector<Finger_tuple> *,
79 Stream_event *, Stream_event *);
80 void add_script (Grob *, Stream_event *, Stream_event *);
81 void add_string (Grob *, Stream_event *, Stream_event *);
82 void position_scripts (SCM orientations, vector<Finger_tuple> *);
86 New_fingering_engraver::acknowledge_rhythmic_head (Grob_info inf)
88 Stream_event *note_ev = inf.event_cause ();
92 SCM arts = note_ev->get_property ("articulations");
94 for (SCM s = arts; scm_is_pair (s); s = scm_cdr (s))
96 Stream_event *ev = unsmob_stream_event (scm_car (s));
101 if (ev->in_event_class ("fingering-event"))
102 add_fingering (inf.grob (),
103 ly_symbol2scm ("Fingering"),
106 else if (ev->in_event_class ("text-script-event"))
107 ev->origin ()->warning (_ ("cannot add text scripts to individual note heads"));
108 else if (ev->in_event_class ("script-event"))
109 add_script (inf.grob (), ev, note_ev);
110 else if (ev->in_event_class ("string-number-event"))
111 add_fingering (inf.grob (),
112 ly_symbol2scm ("StringNumber"), &string_numbers_,
114 else if (ev->in_event_class ("stroke-finger-event"))
115 add_fingering (inf.grob (),
116 ly_symbol2scm ("StrokeFinger"), &stroke_fingerings_,
118 else if (ev->in_event_class ("harmonic-event"))
120 inf.grob ()->set_property ("style", ly_symbol2scm ("harmonic"));
121 Grob *d = unsmob_grob (inf.grob ()->get_object ("dot"));
122 if (d && !to_boolean (get_property ("harmonicDots")))
127 heads_.push_back (inf.grob ());
131 New_fingering_engraver::acknowledge_stem (Grob_info inf)
137 New_fingering_engraver::add_script (Grob *head,
139 Stream_event * /* note */)
143 Grob *g = make_item ("Script", event->self_scm ());
144 make_script_from_event (g, context (),
145 event->get_property ("articulation-type"), 0);
147 ft.script_->set_parent (head, X_AXIS);
149 articulations_.push_back (ft);
153 New_fingering_engraver::add_fingering (Grob *head,
155 vector<Finger_tuple> *tuple_vector,
157 Stream_event *hevent)
161 ft.script_ = internal_make_item (grob_sym, event->self_scm (),
162 ly_symbol2string (grob_sym).c_str (),
163 __FILE__, __LINE__, __FUNCTION__
166 Side_position_interface::add_support (ft.script_, head);
168 ft.finger_event_ = event;
169 ft.note_event_ = hevent;
172 tuple_vector->push_back (ft);
176 New_fingering_engraver::position_scripts (SCM orientations,
177 vector<Finger_tuple> *scripts)
179 for (vsize i = 0; i < scripts->size (); i++)
180 if (stem_ && to_boolean (scripts->at (i).script_->get_property ("add-stem-support")))
181 Side_position_interface::add_support (scripts->at (i).script_, stem_);
184 This is not extremely elegant, but we have to do a little
185 formatting here, because the parent/child relations should be
186 known before we move on to the next time step.
188 A more sophisticated approach would be to set both X and Y parents
189 to the note head, and write a more flexible function for
190 positioning the fingerings, setting both X and Y coordinates.
192 for (vsize i = 0; i < scripts->size (); i++)
193 (*scripts)[i].position_ = scm_to_int ((*scripts)[i].head_->get_property ("staff-position"));
195 for (vsize i = scripts->size (); i--;)
196 for (vsize j = heads_.size (); j--;)
197 Side_position_interface::add_support ((*scripts)[i].script_, heads_[j]);
199 vector<Finger_tuple> up, down, horiz;
200 for (vsize i = scripts->size (); i--;)
202 SCM d = (*scripts)[i].finger_event_->get_property ("direction");
205 ((to_dir (d) == UP) ? up : down).push_back ((*scripts)[i]);
206 scripts->erase (scripts->begin () + i);
210 vector_sort (*scripts, less<Finger_tuple> ());
212 bool up_p = scm_c_memq (ly_symbol2scm ("up"), orientations) != SCM_BOOL_F;
213 bool down_p = scm_c_memq (ly_symbol2scm ("down"), orientations) != SCM_BOOL_F;
214 bool left_p = scm_c_memq (ly_symbol2scm ("left"), orientations) != SCM_BOOL_F;
215 bool right_p = scm_c_memq (ly_symbol2scm ("right"), orientations) != SCM_BOOL_F;
216 Direction hordir = (right_p) ? RIGHT : LEFT;
217 if (left_p || right_p)
219 if (up_p && !up.size () && scripts->size ())
221 up.push_back (scripts->back ());
222 scripts->pop_back ();
225 if (down_p && !down.size () && scripts->size ())
227 down.push_back ((*scripts)[0]);
228 scripts->erase (scripts->begin ());
231 horiz.insert (horiz.end (), scripts->begin (), scripts->end ());
233 else if (up_p && down_p)
235 int center = scripts->size () / 2;
236 down.insert (down.end (), scripts->begin (), scripts->begin () + center);
237 up.insert (up.end (), scripts->begin () + center, scripts->end ());
241 up.insert (up.end (), scripts->begin (), scripts->end ());
248 warning (_ ("no placement found for fingerings"));
249 warning (_ ("placing below"));
251 down.insert (down.end (), scripts->begin (), scripts->end ());
255 for (vsize i = 0; i < horiz.size (); i++)
257 Finger_tuple ft = horiz[i];
258 Grob *f = ft.script_;
259 f->set_parent (ft.head_, X_AXIS);
260 f->set_parent (ft.head_, Y_AXIS);
261 f->set_property ("avoid-slur", SCM_BOOL_F);
263 && unsmob_grob (ft.head_->get_object ("accidental-grob")))
264 Side_position_interface::add_support (f,
265 unsmob_grob (ft.head_->get_object ("accidental-grob")));
266 else if (unsmob_grob (ft.head_->get_object ("dot")))
267 Side_position_interface::add_support (f,
268 unsmob_grob (ft.head_->get_object ("dot")));
270 Self_alignment_interface::set_align_self (f, Y_AXIS);
271 Self_alignment_interface::set_center_parent (f, Y_AXIS);
272 Side_position_interface::set_axis (f, X_AXIS);
274 f->set_property ("direction", scm_from_int (hordir));
278 Drul_array< vector<Finger_tuple> > vertical (down, up);
281 for (vsize i = 0; i < vertical[d].size (); i++)
283 Finger_tuple ft = vertical[d][i];
284 Grob *f = ft.script_;
285 int finger_prio = robust_scm2int (f->get_property ("script-priority"), 200);
286 f->set_parent (ft.head_, X_AXIS);
287 f->set_property ("script-priority",
288 scm_from_int (finger_prio + d * ft.position_));
290 Self_alignment_interface::set_align_self (f, X_AXIS);
291 Self_alignment_interface::set_center_parent (f, X_AXIS);
292 Side_position_interface::set_axis (f, Y_AXIS);
294 f->set_property ("direction", scm_from_int (d));
297 while (flip (&d) != DOWN);
301 New_fingering_engraver::stop_translation_timestep ()
310 New_fingering_engraver::position_all ()
312 if (fingerings_.size ())
314 position_scripts (get_property ("fingeringOrientations"),
316 fingerings_.clear ();
319 if (string_numbers_.size ())
321 position_scripts (get_property ("stringNumberOrientations"),
323 string_numbers_.clear ();
326 if (stroke_fingerings_.size ())
328 position_scripts (get_property ("strokeFingerOrientations"),
329 &stroke_fingerings_);
330 stroke_fingerings_.clear ();
333 for (vsize i = articulations_.size (); i--;)
335 Grob *script = articulations_[i].script_;
337 for (vsize j = heads_.size (); j--;)
338 Side_position_interface::add_support (script, heads_[j]);
340 if (stem_ && to_dir (script->get_property ("side-relative-direction")))
341 script->set_object ("direction-source", stem_->self_scm ());
343 if (stem_ && to_boolean (script->get_property ("add-stem-support")))
344 Side_position_interface::add_support (script, stem_);
346 articulations_.clear ();
349 New_fingering_engraver::New_fingering_engraver ()
355 ADD_ACKNOWLEDGER (New_fingering_engraver, rhythmic_head);
356 ADD_ACKNOWLEDGER (New_fingering_engraver, stem);
358 ADD_TRANSLATOR (New_fingering_engraver,
360 "Create fingering scripts for notes in a new chord. This"
361 " engraver is ill-named, since it also takes care of"
362 " articulations and harmonic note heads.",
371 "fingeringOrientations "
373 "strokeFingerOrientations "
374 "stringNumberOrientations ",