2 phrasing-slur-engraver.cc -- implement Phrasing_slur_engraver
4 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "directional-element-interface.hh"
11 #include "note-column.hh"
16 It is possible that a slur starts and ends on the same note. At
17 least, it is for phrasing slurs: a note can be both beginning and
21 class Phrasing_slur_engraver : public Engraver
23 Drul_array<Music *> events_;
24 Music *running_slur_start_;
25 Link_array<Grob> slurs_;
26 Link_array<Grob> end_slurs_;
29 virtual bool try_music (Music *);
31 void acknowledge_extra_object (Grob_info);
32 DECLARE_ACKNOWLEDGER (note_column);
33 DECLARE_ACKNOWLEDGER (accidental);
34 DECLARE_ACKNOWLEDGER (fingering);
35 DECLARE_ACKNOWLEDGER (script);
36 DECLARE_ACKNOWLEDGER (tie);
37 DECLARE_ACKNOWLEDGER (text_script);
38 DECLARE_ACKNOWLEDGER (slur);
40 void stop_translation_timestep ();
41 virtual void finalize ();
42 void process_music ();
45 TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
48 Phrasing_slur_engraver::Phrasing_slur_engraver ()
50 events_[START] = events_[STOP] = 0;
54 Phrasing_slur_engraver::try_music (Music *m)
56 if (m->is_mus_type ("phrasing-slur-event"))
59 Let's not start more than one slur per moment.
61 Direction d = to_dir (m->get_property ("span-direction"));
69 if (slurs_.is_empty ())
80 Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
82 Grob *e = info.grob ();
83 for (int i = slurs_.size (); i--;)
84 Slur::add_column (slurs_[i], e);
85 for (int i = end_slurs_.size (); i--;)
86 Slur::add_column (end_slurs_[i], e);
90 Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
92 Grob*e = info.grob ();
93 SCM inside = e->get_property ("inside-slur");
94 if (Tie::has_interface (e)
95 || to_boolean (inside))
97 for (int i = slurs_.size (); i--;)
98 Slur::add_extra_encompass (slurs_[i], e);
99 for (int i = end_slurs_.size (); i--;)
100 Slur::add_extra_encompass (end_slurs_[i], e);
102 else if (inside == SCM_BOOL_F)
104 Grob *slur = slurs_.size () ? slurs_[0] : 0;
105 slur = (end_slurs_.size () && !slur)
106 ? end_slurs_[0] : slur;
110 e->add_offset_callback (Slur::outside_slur_callback_proc, Y_AXIS);
111 e->set_object ("slur", slur->self_scm ());
117 Phrasing_slur_engraver::acknowledge_accidental (Grob_info info)
119 acknowledge_extra_object (info);
124 Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
126 acknowledge_extra_object (info);
130 Phrasing_slur_engraver::acknowledge_script (Grob_info info)
132 acknowledge_extra_object (info);
136 Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
138 acknowledge_extra_object (info);
142 Phrasing_slur_engraver::acknowledge_tie (Grob_info info)
144 acknowledge_extra_object (info);
149 Phrasing_slur_engraver::acknowledge_slur (Grob_info info)
151 acknowledge_extra_object (info);
155 Phrasing_slur_engraver::finalize ()
158 slurs_[0]->warning (_ ("unterminated phrasing slur"));
162 Phrasing_slur_engraver::process_music ()
170 if (events_[START] && slurs_.is_empty ())
172 Music *ev = events_[START];
174 Grob *slur = make_spanner ("PhrasingSlur", events_[START]->self_scm ());
175 Direction updown = to_dir (ev->get_property ("direction"));
177 set_grob_direction (slur, updown);
184 Phrasing_slur_engraver::stop_translation_timestep ()
187 events_[START] = events_[STOP] = 0;
190 #include "translator.icc"
193 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,note_column);
194 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,accidental);
195 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,fingering)
196 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,script);
197 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,tie);
198 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,text_script);
199 ADD_ACKNOWLEDGER (Phrasing_slur_engraver,slur);
201 ADD_TRANSLATOR (Phrasing_slur_engraver,
202 /* descr */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
203 /* creats*/ "PhrasingSlur",
204 /* accepts */ "phrasing-slur-event",