2 phrasing-slur-engraver.cc -- implement Phrasing_slur_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "directional-element-interface.hh"
11 #include "engraver.hh"
13 #include "note-column.hh"
19 It is possible that a slur starts and ends on the same note. At
20 least, it is for phrasing slurs: a note can be both beginning and
24 class Phrasing_slur_engraver : public Engraver
26 Drul_array<Music *> events_;
27 Music *running_slur_start_;
28 Link_array<Grob> slurs_;
29 Link_array<Grob> end_slurs_;
32 virtual bool try_music (Music *);
34 void acknowledge_extra_object (Grob_info);
35 DECLARE_ACKNOWLEDGER (accidental);
36 DECLARE_ACKNOWLEDGER (dynamic_line_spanner);
37 DECLARE_ACKNOWLEDGER (fingering);
38 DECLARE_ACKNOWLEDGER (note_column);
39 DECLARE_ACKNOWLEDGER (script);
40 DECLARE_ACKNOWLEDGER (slur);
41 DECLARE_ACKNOWLEDGER (text_script);
42 DECLARE_ACKNOWLEDGER (tie);
44 void stop_translation_timestep ();
45 virtual void finalize ();
46 void process_music ();
49 TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
52 Phrasing_slur_engraver::Phrasing_slur_engraver ()
54 events_[START] = events_[STOP] = 0;
58 Phrasing_slur_engraver::try_music (Music *m)
60 if (m->is_mus_type ("phrasing-slur-event"))
63 Let's not start more than one slur per moment.
65 Direction d = to_dir (m->get_property ("span-direction"));
73 if (slurs_.is_empty ())
84 Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
86 Grob *e = info.grob ();
87 for (int i = slurs_.size (); i--;)
88 Slur::add_column (slurs_[i], e);
89 for (int i = end_slurs_.size (); i--;)
90 Slur::add_column (end_slurs_[i], e);
93 /* FIXME: cut + paste job from Slur:: */
95 Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
97 Grob *e = info.grob ();
98 SCM avoid = e->get_property ("avoid-slur");
99 if (Tie::has_interface (e)
100 || avoid == ly_symbol2scm ("inside"))
102 for (int i = slurs_.size (); i--;)
103 Slur::add_extra_encompass (slurs_[i], e);
104 for (int i = end_slurs_.size (); i--;)
105 Slur::add_extra_encompass (end_slurs_[i], e);
107 else if (avoid == ly_symbol2scm ("outside")
108 || avoid == ly_symbol2scm ("around"))
110 Grob *slur = slurs_.size () ? slurs_[0] : 0;
111 slur = (end_slurs_.size () && !slur)
112 ? end_slurs_[0] : slur;
116 chain_offset_callback (e, Slur::outside_slur_callback_proc, Y_AXIS);
117 e->set_object ("slur", slur->self_scm ());
123 Phrasing_slur_engraver::acknowledge_accidental (Grob_info info)
125 acknowledge_extra_object (info);
129 Phrasing_slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
131 acknowledge_extra_object (info);
135 Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
137 acknowledge_extra_object (info);
141 Phrasing_slur_engraver::acknowledge_script (Grob_info info)
143 acknowledge_extra_object (info);
147 Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
149 acknowledge_extra_object (info);
153 Phrasing_slur_engraver::acknowledge_tie (Grob_info info)
155 acknowledge_extra_object (info);
159 Phrasing_slur_engraver::acknowledge_slur (Grob_info info)
161 acknowledge_extra_object (info);
165 Phrasing_slur_engraver::finalize ()
168 slurs_[0]->warning (_ ("unterminated phrasing slur"));
172 Phrasing_slur_engraver::process_music ()
180 if (events_[START] && slurs_.is_empty ())
182 Music *ev = events_[START];
184 Grob *slur = make_spanner ("PhrasingSlur", events_[START]->self_scm ());
185 Direction updown = to_dir (ev->get_property ("direction"));
187 set_grob_direction (slur, updown);
194 Phrasing_slur_engraver::stop_translation_timestep ()
197 events_[START] = events_[STOP] = 0;
200 #include "translator.icc"
202 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, accidental);
203 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, dynamic_line_spanner);
204 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, fingering)
205 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, note_column);
206 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, script);
207 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, slur);
208 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, text_script);
209 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, tie);
211 ADD_TRANSLATOR (Phrasing_slur_engraver,
212 /* doc */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
213 /* create */ "PhrasingSlur",
214 /* accept */ "phrasing-slur-event",