2 plet-engraver.cc -- implement Tuplet_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "command-request.hh"
12 #include "tuplet-spanner.hh"
13 #include "note-column.hh"
14 #include "time-scaled-music.hh"
16 #include "music-list.hh"
17 #include "engraver.hh"
19 class Tuplet_engraver : public Engraver
22 VIRTUAL_COPY_CONS(Translator);
25 Link_array<Time_scaled_music> time_scaled_music_arr_;
26 /// when does the scaled music stop? Array order is synced with time_scaled_music_arr_
27 Array<Moment> stop_moments_;
28 /// when does the current spanner stop? Array order is synced with time_scaled_music_arr_
29 Array<Moment> span_stop_moments_;
31 /// The spanners. Array order is synced with time_scaled_music_arr_
32 Link_array<Spanner> started_span_p_arr_;
34 virtual void do_removal_processing ();
35 virtual void acknowledge_element (Score_element_info);
36 virtual bool do_try_music (Music*r);
37 virtual void do_process_music ();
38 virtual void do_post_move_processing ();
42 Tuplet_engraver::do_try_music (Music *r)
44 if (Time_scaled_music * c = dynamic_cast<Time_scaled_music *> (r))
46 Music *el = c->element_l ();
47 if (!dynamic_cast<Request_chord*> (el))
49 time_scaled_music_arr_.push (c);
50 Moment m = now_mom () + c->length_mom ();
51 stop_moments_.push (m);
53 SCM s = get_property ("tupletSpannerDuration");
55 m = m <? (now_mom () + *unsmob_moment (s));
57 span_stop_moments_.push (m);
65 Tuplet_engraver::do_process_music ()
67 SCM v = get_property ("tupletInvisible");
71 for (int i= 0; i < time_scaled_music_arr_.size (); i++)
73 if (i < started_span_p_arr_.size () && started_span_p_arr_[i])
76 Spanner* glep = new Spanner (get_property ("basicTupletSpannerProperties"));
77 Tuplet_spanner::set_interface (glep);
78 if (i >= started_span_p_arr_.size ())
79 started_span_p_arr_.push (glep);
81 started_span_p_arr_[i] = glep;
83 glep->set_elt_property ("text",
84 ly_str02scm (to_str (time_scaled_music_arr_[i]->den_i_).ch_C()));
86 announce_element (Score_element_info (glep, time_scaled_music_arr_ [i]));
91 Tuplet_engraver::acknowledge_element (Score_element_info i)
93 bool grace= to_boolean (i.elem_l_->get_elt_property ("grace"));
94 SCM wg = get_property ("weAreGraceContext");
95 bool wgb = to_boolean (wg);
99 if (Note_column *nc = dynamic_cast<Note_column *> (i.elem_l_))
101 for (int j =0; j <started_span_p_arr_.size (); j++)
102 if (started_span_p_arr_[j])
103 Tuplet_spanner::add_column (started_span_p_arr_[j],nc);
105 else if (Beam *b = dynamic_cast<Beam *> (i.elem_l_))
107 for (int j = 0; j < started_span_p_arr_.size (); j++)
108 if (started_span_p_arr_[j])
109 Tuplet_spanner::add_beam (started_span_p_arr_[j],b);
114 Tuplet_engraver::do_post_move_processing ()
116 Moment now = now_mom ();
119 SCM s = get_property ("tupletSpannerDuration");
120 if (unsmob_moment (s))
121 tsd = *unsmob_moment (s);
123 for (int i= started_span_p_arr_.size (); i--; )
125 if (now >= span_stop_moments_[i])
127 if (started_span_p_arr_[i])
129 typeset_element (started_span_p_arr_[i]);
130 started_span_p_arr_[i] =0;
134 span_stop_moments_[i] += tsd;
137 if (now >= stop_moments_[i])
139 started_span_p_arr_.del (i);
140 stop_moments_.del(i);
141 span_stop_moments_.del (i);
142 time_scaled_music_arr_.del(i);
148 Tuplet_engraver::do_removal_processing ()
150 for (int i=0; i < started_span_p_arr_.size (); i++)
152 if (started_span_p_arr_[i])
153 typeset_element (started_span_p_arr_[i]);
157 ADD_THIS_TRANSLATOR(Tuplet_engraver);