2 phrasing-slur-engraver.cc -- implement Phrasing_slur_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
12 #include "directional-element-interface.hh"
13 #include "international.hh"
14 #include "note-column.hh"
21 It is possible that a slur starts and ends on the same note. At
22 least, it is for phrasing slurs: a note can be both beginning and
26 class Phrasing_slur_engraver : public Engraver
28 Drul_array<Music *> events_;
29 Music *running_slur_start_;
31 vector<Grob*> end_slurs_;
34 virtual bool try_music (Music *);
36 void acknowledge_extra_object (Grob_info);
37 DECLARE_ACKNOWLEDGER (accidental);
38 DECLARE_ACKNOWLEDGER (dynamic_line_spanner);
39 DECLARE_ACKNOWLEDGER (fingering);
40 DECLARE_ACKNOWLEDGER (note_column);
41 DECLARE_ACKNOWLEDGER (script);
42 DECLARE_ACKNOWLEDGER (slur);
43 DECLARE_ACKNOWLEDGER (text_script);
44 DECLARE_ACKNOWLEDGER (tie);
46 void stop_translation_timestep ();
47 virtual void finalize ();
48 void process_music ();
51 TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
54 Phrasing_slur_engraver::Phrasing_slur_engraver ()
56 events_[START] = events_[STOP] = 0;
60 Phrasing_slur_engraver::try_music (Music *m)
62 if (m->is_mus_type ("phrasing-slur-event"))
65 Let's not start more than one slur per moment.
67 Direction d = to_dir (m->get_property ("span-direction"));
86 Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
88 Grob *e = info.grob ();
89 for (vsize i = slurs_.size (); i--;)
90 Slur::add_column (slurs_[i], e);
91 for (vsize i = end_slurs_.size (); i--;)
92 Slur::add_column (end_slurs_[i], e);
95 /* FIXME: cut + paste job from Slur:: */
97 Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
99 Grob *e = info.grob ();
100 SCM avoid = e->get_property ("avoid-slur");
101 if (Tie::has_interface (e)
102 || avoid == ly_symbol2scm ("inside"))
104 for (vsize i = slurs_.size (); i--;)
105 Slur::add_extra_encompass (slurs_[i], e);
106 for (vsize i = end_slurs_.size (); i--;)
107 Slur::add_extra_encompass (end_slurs_[i], e);
109 else if (avoid == ly_symbol2scm ("outside")
110 || avoid == ly_symbol2scm ("around"))
112 Grob *slur = slurs_.size () ? slurs_[0] : 0;
113 slur = (end_slurs_.size () && !slur)
114 ? end_slurs_[0] : slur;
118 chain_offset_callback (e, Slur::outside_slur_callback_proc, Y_AXIS);
119 e->set_object ("slur", slur->self_scm ());
125 Phrasing_slur_engraver::acknowledge_accidental (Grob_info info)
127 acknowledge_extra_object (info);
131 Phrasing_slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
133 acknowledge_extra_object (info);
137 Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
139 acknowledge_extra_object (info);
143 Phrasing_slur_engraver::acknowledge_script (Grob_info info)
145 acknowledge_extra_object (info);
149 Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
151 acknowledge_extra_object (info);
155 Phrasing_slur_engraver::acknowledge_tie (Grob_info info)
157 acknowledge_extra_object (info);
161 Phrasing_slur_engraver::acknowledge_slur (Grob_info info)
163 acknowledge_extra_object (info);
167 Phrasing_slur_engraver::finalize ()
170 slurs_[0]->warning (_ ("unterminated phrasing slur"));
174 Phrasing_slur_engraver::process_music ()
182 if (events_[START] && slurs_.empty ())
184 Music *ev = events_[START];
186 Grob *slur = make_spanner ("PhrasingSlur", events_[START]->self_scm ());
187 Direction updown = to_dir (ev->get_property ("direction"));
189 set_grob_direction (slur, updown);
191 slurs_.push_back (slur);
196 Phrasing_slur_engraver::stop_translation_timestep ()
199 events_[START] = events_[STOP] = 0;
202 #include "translator.icc"
204 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, accidental);
205 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, dynamic_line_spanner);
206 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, fingering)
207 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, note_column);
208 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, script);
209 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, slur);
210 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, text_script);
211 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, tie);
213 ADD_TRANSLATOR (Phrasing_slur_engraver,
214 /* doc */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
215 /* create */ "PhrasingSlur",
216 /* accept */ "phrasing-slur-event",