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"
17 #include "stream-event.hh"
20 #include "translator.icc"
23 It is possible that a slur starts and ends on the same note. At
24 least, it is for phrasing slurs: a note can be both beginning and
28 class Phrasing_slur_engraver : public Engraver
30 Drul_array<Stream_event *> events_;
31 Stream_event *running_slur_start_;
33 vector<Grob*> end_slurs_;
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);
45 DECLARE_TRANSLATOR_LISTENER (phrasing_slur);
47 void stop_translation_timestep ();
48 virtual void finalize ();
49 void process_music ();
52 TRANSLATOR_DECLARATIONS (Phrasing_slur_engraver);
55 Phrasing_slur_engraver::Phrasing_slur_engraver ()
57 events_[START] = events_[STOP] = 0;
60 IMPLEMENT_TRANSLATOR_LISTENER (Phrasing_slur_engraver, phrasing_slur);
62 Phrasing_slur_engraver::listen_phrasing_slur (Stream_event *ev)
65 Let's not start more than one slur per moment.
67 Direction d = to_dir (ev->get_property ("span-direction"));
69 ASSIGN_EVENT_ONCE (events_[START], ev);
70 else if (d == STOP && !slurs_.empty ())
71 ASSIGN_EVENT_ONCE (events_[STOP], ev);
75 Phrasing_slur_engraver::acknowledge_note_column (Grob_info info)
77 Grob *e = info.grob ();
78 for (vsize i = slurs_.size (); i--;)
79 Slur::add_column (slurs_[i], e);
80 for (vsize i = end_slurs_.size (); i--;)
81 Slur::add_column (end_slurs_[i], e);
85 Phrasing_slur_engraver::acknowledge_extra_object (Grob_info info)
87 Slur::auxiliary_acknowledge_extra_object (info, slurs_, end_slurs_);
91 Phrasing_slur_engraver::acknowledge_accidental (Grob_info info)
93 acknowledge_extra_object (info);
97 Phrasing_slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
99 acknowledge_extra_object (info);
103 Phrasing_slur_engraver::acknowledge_fingering (Grob_info info)
105 acknowledge_extra_object (info);
109 Phrasing_slur_engraver::acknowledge_script (Grob_info info)
111 acknowledge_extra_object (info);
115 Phrasing_slur_engraver::acknowledge_text_script (Grob_info info)
117 acknowledge_extra_object (info);
121 Phrasing_slur_engraver::acknowledge_tie (Grob_info info)
123 acknowledge_extra_object (info);
127 Phrasing_slur_engraver::acknowledge_slur (Grob_info info)
129 acknowledge_extra_object (info);
133 Phrasing_slur_engraver::finalize ()
136 slurs_[0]->warning (_ ("unterminated phrasing slur"));
140 Phrasing_slur_engraver::process_music ()
148 if (events_[START] && slurs_.empty ())
150 Stream_event *ev = events_[START];
152 Grob *slur = make_spanner ("PhrasingSlur", events_[START]->self_scm ());
153 Direction updown = to_dir (ev->get_property ("direction"));
155 set_grob_direction (slur, updown);
157 slurs_.push_back (slur);
162 Phrasing_slur_engraver::stop_translation_timestep ()
165 events_[START] = events_[STOP] = 0;
168 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, accidental);
169 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, dynamic_line_spanner);
170 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, fingering)
171 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, note_column);
172 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, script);
173 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, slur);
174 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, text_script);
175 ADD_ACKNOWLEDGER (Phrasing_slur_engraver, tie);
177 ADD_TRANSLATOR (Phrasing_slur_engraver,
178 /* doc */ "Print phrasing slurs. Similar to @ref{Slur_engraver}",
179 /* create */ "PhrasingSlur",
180 /* accept */ "phrasing-slur-event",