2 repeat-engraver.cc -- implement Repeat_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998 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 "repeated-music.hh"
18 #include "time-description.hh"
19 #include "volta-spanner.hh"
20 #include "note-column.hh"
21 #include "paper-def.hh"
23 ADD_THIS_TRANSLATOR (Repeat_engraver);
25 Repeat_engraver::Repeat_engraver ()
30 Repeat_engraver::do_try_music (Music* m)
32 if (Repeated_music* r = dynamic_cast<Repeated_music *> (m))
34 r->unfold_b_ = get_property ("unfoldRepeats", 0).to_bool ();
38 Music_sequence* alt = r->alternative_p_;
39 Moment repeat_length_mom = r->repeat_p_->length_mom ();
40 Moment stop_mom = now_mom () + repeat_length_mom;
41 Moment alt_mom = now_mom () + repeat_length_mom;
42 if (repeat_length_mom)
44 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok () && (i != alt->music_p_list_p_->bottom ()); i++)
46 stop_mom += i->length_mom ();
47 if (dynamic_cast<Simultaneous_music *> (alt))
50 repeated_music_arr_.push (r);
51 stop_mom_arr_.push (stop_mom);
55 Counting nested repeats, it seems safest to forbid
56 two pieces of alternative music to start at the same time.
58 for (int i = 0; i < alternative_start_mom_arr_.size (); i++)
59 if (alternative_start_mom_arr_[i] == alt_mom)
63 Coda kludge: see input/test/coda-kludge.ly
66 Scalar prop = get_property ("voltaSpannerDuration", 0);
68 span_mom = prop.to_rat ();
69 int alt_i = r->repeats_i_ + 1 - alt->music_p_list_p_->size () >? 1;
70 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok (); i++)
72 alternative_music_arr_.push (i.ptr ());
73 alternative_start_mom_arr_.push (alt_mom);
75 alternative_stop_mom_arr_.push (alt_mom + span_mom);
77 alternative_stop_mom_arr_.push (alt_mom + i->length_mom ());
79 if ((alt_i != 1) && (alt_i != r->repeats_i_) && (i == alt->music_p_list_p_->top ()))
81 str += to_str (alt_i) + ".";
83 alternative_str_arr_.push (str);
84 if (!dynamic_cast<Simultaneous_music *> (alt))
85 alt_mom += i->length_mom ();
93 Repeat_engraver::acknowledge_element (Score_element_info i)
95 Moment now = now_mom ();
96 if (Note_column *c = dynamic_cast<Note_column *> (i.elem_l_))
98 for (int i = 0; i < volta_p_arr_.size (); i++)
99 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
100 volta_p_arr_[i]->add_column (c);
102 if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
104 for (int i = 0; i < volta_p_arr_.size (); i++)
105 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
106 volta_p_arr_[i]->add_column (c);
111 Repeat_engraver::do_removal_processing ()
113 for (int i = 0; i < volta_p_arr_.size (); i++)
115 typeset_element (volta_p_arr_[i]);
119 Repeat_engraver::do_process_requests ()
121 Moment now = now_mom ();
122 Bar_engraver* bar_engraver_l = dynamic_cast <Bar_engraver*>
123 (daddy_grav_l ()->get_simple_translator ("Bar_engraver"));
124 for (int i = bar_b_arr_.size (); i < repeated_music_arr_.size (); i++)
127 bar_engraver_l->request_bar ("|:");
128 bar_b_arr_.push (true);
130 for (int i = 0; i < bar_b_arr_.size (); i++)
132 if (!bar_b_arr_[i] && (now >= stop_mom_arr_[i]))
135 bar_engraver_l->request_bar (":|");
138 for (int i = volta_p_arr_.size (); i < alternative_music_arr_.size (); i++)
140 Volta_spanner* v = new Volta_spanner;
141 Scalar prop = get_property ("voltaVisibility", 0);
142 v->visible_b_ = prop.to_bool ();
143 prop = get_property ("voltaSpannerDuration", 0);
144 if ((i == alternative_music_arr_.size () - 1) || prop.length_i ())
146 Text_def* t = new Text_def;
147 t->text_str_ = alternative_str_arr_[i];
148 v->number_p_.set_p (t);
149 volta_p_arr_.push (v);
150 announce_element (Score_element_info (v, alternative_music_arr_[i]));
155 Repeat_engraver::do_pre_move_processing ()
157 Moment now = now_mom ();
158 for (int i = bar_b_arr_.size (); i--; )
161 bar_b_arr_[i] = false;
162 if (now >= stop_mom_arr_[i])
165 stop_mom_arr_.del (i);
166 repeated_music_arr_.del (i);
169 for (int i = volta_p_arr_.size (); i--; )
171 if (volta_p_arr_[i] && (now >= alternative_stop_mom_arr_[i])
172 && (volta_p_arr_[i]->column_arr_.size () >= 1))
174 typeset_element (volta_p_arr_[i]);
176 volta_p_arr_.del (i);
177 alternative_music_arr_[i] = 0;
178 alternative_music_arr_.del (i);
179 alternative_start_mom_arr_.del (i);
180 alternative_stop_mom_arr_.del (i);
181 alternative_str_arr_.del (i);
187 Repeat_engraver::do_post_move_processing ()