2 repeat-engraver.cc -- implement Repeat_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
9 #include "repeat-engraver.hh"
11 #include "bar-engraver.hh"
12 #include "musical-request.hh"
13 #include "multi-measure-rest.hh"
14 #include "command-request.hh"
15 #include "time-description.hh"
16 #include "engraver-group.hh"
17 #include "new-repeated-music.hh"
18 #include "time-description.hh"
19 #include "volta-spanner.hh"
20 #include "note-column.hh"
21 #include "paper-def.hh"
22 #include "music-list.hh"
24 ADD_THIS_TRANSLATOR (Repeat_engraver);
27 Urg. Hairy. Needs redesign?
30 Repeat_engraver::do_try_music (Music* m)
32 if (New_repeated_music* r = dynamic_cast<New_repeated_music *> (m))
34 Music_sequence* alt = r->alternatives_p_;
35 Moment repeat_length_mom = r->repeat_body_p_->length_mom ();
36 Moment stop_mom = now_mom () + repeat_length_mom;
37 Moment alt_mom = now_mom () + repeat_length_mom;
38 if (repeat_length_mom)
40 stop_mom += r->alternatives_length_mom ();
41 repeated_music_arr_.push (r);
42 stop_mom_arr_.push (stop_mom);
46 Counting nested repeats, it seems safest to forbid
47 two pieces of alternative music to start at the same time.
49 for (int i = 0; i < alternative_start_mom_arr_.size (); i++)
50 if (alternative_start_mom_arr_[i] == alt_mom)
54 Coda kludge: see input/test/coda-kludge.ly
57 Scalar prop = get_property ("voltaSpannerDuration", 0);
59 span_mom = prop.to_rat ();
61 int alt_i = r->repeats_i_ + 1 - cons_list_size_i (alt->music_p_list_p_->head_ ) >? 1;
62 for (Cons<Music> *i = alt->music_p_list_p_->head_; i ; i = i->next_)
64 alternative_music_arr_.push (i->car_);
65 alternative_start_mom_arr_.push (alt_mom);
67 alternative_stop_mom_arr_.push (alt_mom + span_mom);
69 alternative_stop_mom_arr_.push (alt_mom + i->car_->length_mom ());
71 if ((alt_i != 1) && (alt_i != r->repeats_i_) && (i == alt->music_p_list_p_->head_))
73 str += to_str (alt_i) + ".";
75 alternative_str_arr_.push (str);
76 if (!dynamic_cast<Simultaneous_music *> (alt))
77 alt_mom += i->car_->length_mom ();
85 Repeat_engraver::acknowledge_element (Score_element_info i)
87 Moment now = now_mom ();
88 if (Note_column *c = dynamic_cast<Note_column *> (i.elem_l_))
90 for (int i = 0; i < volta_p_arr_.size (); i++)
91 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
92 volta_p_arr_[i]->add_column (c);
94 if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
96 for (int i = 0; i < volta_p_arr_.size (); i++)
97 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
98 volta_p_arr_[i]->add_column (c);
103 Repeat_engraver::do_removal_processing ()
105 for (int i = 0; i < volta_p_arr_.size (); i++)
107 typeset_element (volta_p_arr_[i]);
111 Repeat_engraver::do_process_requests ()
113 Moment now = now_mom ();
114 Bar_engraver* bar_engraver_l = dynamic_cast <Bar_engraver*>
115 (daddy_grav_l ()->get_simple_translator ("Bar_engraver"));
116 for (int i = bar_b_arr_.size (); i < repeated_music_arr_.size (); i++)
119 bar_engraver_l->request_bar ("|:");
120 bar_b_arr_.push (true);
122 for (int i = 0; i < bar_b_arr_.size (); i++)
124 if (!bar_b_arr_[i] && (now >= stop_mom_arr_[i]))
127 bar_engraver_l->request_bar (":|");
130 for (int i = volta_p_arr_.size (); i < alternative_music_arr_.size (); i++)
132 Volta_spanner* v = new Volta_spanner;
133 Scalar prop = get_property ("voltaVisibility", 0);
134 if (!prop.to_bool ())
135 v->set_elt_property (transparent_scm_sym, SCM_BOOL_T);
136 prop = get_property ("voltaSpannerDuration", 0);
137 if ((i == alternative_music_arr_.size () - 1) || prop.length_i ())
140 v->number_str_ = alternative_str_arr_[i];
141 volta_p_arr_.push (v);
142 announce_element (Score_element_info (v, alternative_music_arr_[i]));
147 Repeat_engraver::do_pre_move_processing ()
149 Moment now = now_mom ();
150 for (int i = bar_b_arr_.size (); i--; )
153 bar_b_arr_[i] = false;
154 if (now >= stop_mom_arr_[i])
157 stop_mom_arr_.del (i);
158 repeated_music_arr_.del (i);
161 for (int i = volta_p_arr_.size (); i--; )
163 if (volta_p_arr_[i] && (now >= alternative_stop_mom_arr_[i])
164 && (volta_p_arr_[i]->column_arr_.size () >= 1))
166 typeset_element (volta_p_arr_[i]);
168 volta_p_arr_.del (i);
169 alternative_music_arr_[i] = 0;
170 alternative_music_arr_.del (i);
171 alternative_start_mom_arr_.del (i);
172 alternative_stop_mom_arr_.del (i);
173 alternative_str_arr_.del (i);