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@cs.uu.nl>
10 #include "directional-element-interface.hh"
11 #include "engraver.hh"
13 #include "note-column.hh"
18 It is possible that a slur starts and ends on the same note. At
19 least, it is for phrasing slurs: a note can be both beginning and
23 class Phrasing_slur_engraver : public Engraver
25 Drul_array<Music *> events_;
26 Music *running_slur_start_;
27 Link_array<Grob> slurs_;
28 Link_array<Grob> end_slurs_;
31 virtual bool try_music (Music *);
33 void acknowledge_extra_object (Grob_info);
34 DECLARE_ACKNOWLEDGER (accidental);
35 DECLARE_ACKNOWLEDGER (dynamic_line_spanner);
36 DECLARE_ACKNOWLEDGER (fingering);
37 DECLARE_ACKNOWLEDGER (note_column);
38 DECLARE_ACKNOWLEDGER (script);
39 DECLARE_ACKNOWLEDGER (slur);
40 DECLARE_ACKNOWLEDGER (text_script);
41 DECLARE_ACKNOWLEDGER (tie);
43 void stop_translation_timestep ();
44 virtual void finalize ();
45 void process_music ();
48 TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
51 Phrasing_slur_engraver::Phrasing_slur_engraver ()
53 events_[START] = events_[STOP] = 0;
57 Phrasing_slur_engraver::try_music (Music *m)
59 if (m->is_mus_type ("phrasing-slur-event"))
62 Let's not start more than one slur per moment.
64 Direction d = to_dir (m->get_property ("span-direction"));
72 if (slurs_.is_empty ())
83 Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
85 Grob *e = info.grob ();
86 for (int i = slurs_.size (); i--;)
87 Slur::add_column (slurs_[i], e);
88 for (int i = end_slurs_.size (); i--;)
89 Slur::add_column (end_slurs_[i], e);
92 /* FIXME: cut + paste job from Slur:: */
94 Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
96 Grob *e = info.grob ();
97 SCM inside = e->get_property ("inside-slur");
98 if (Tie::has_interface (e)
99 || to_boolean (inside))
101 for (int i = slurs_.size (); i--;)
102 Slur::add_extra_encompass (slurs_[i], e);
103 for (int i = end_slurs_.size (); i--;)
104 Slur::add_extra_encompass (end_slurs_[i], e);
106 else if (!to_boolean (inside)
107 && e->name () != "DynamicText")
109 Grob *slur = slurs_.size () ? slurs_[0] : 0;
110 slur = (end_slurs_.size () && !slur)
111 ? end_slurs_[0] : slur;
115 e->add_offset_callback (Slur::outside_slur_callback_proc, Y_AXIS);
116 e->set_object ("slur", slur->self_scm ());
122 Phrasing_slur_engraver::acknowledge_accidental (Grob_info info)
124 acknowledge_extra_object (info);
128 Phrasing_slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
130 acknowledge_extra_object (info);
134 Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
136 acknowledge_extra_object (info);
140 Phrasing_slur_engraver::acknowledge_script (Grob_info info)
142 acknowledge_extra_object (info);
146 Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
148 acknowledge_extra_object (info);
152 Phrasing_slur_engraver::acknowledge_tie (Grob_info info)
154 acknowledge_extra_object (info);
158 Phrasing_slur_engraver::acknowledge_slur (Grob_info info)
160 acknowledge_extra_object (info);
164 Phrasing_slur_engraver::finalize ()
167 slurs_[0]->warning (_ ("unterminated phrasing slur"));
171 Phrasing_slur_engraver::process_music ()
179 if (events_[START] && slurs_.is_empty ())
181 Music *ev = events_[START];
183 Grob *slur = make_spanner ("PhrasingSlur", events_[START]->self_scm ());
184 Direction updown = to_dir (ev->get_property ("direction"));
186 set_grob_direction (slur, updown);
193 Phrasing_slur_engraver::stop_translation_timestep ()
196 events_[START] = events_[STOP] = 0;
199 #include "translator.icc"
201 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, accidental);
202 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, dynamic_line_spanner);
203 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, fingering)
204 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, note_column);
205 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, script);
206 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, slur);
207 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, text_script);
208 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, tie);
210 ADD_TRANSLATOR (Phrasing_slur_engraver,
211 /* doc */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
212 /* create */ "PhrasingSlur",
213 /* accept */ "phrasing-slur-event",