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 "repeated-music.hh"
18 #include "time-description.hh"
19 #include "volta-spanner.hh"
20 #include "note-column.hh"
21 #include "paper-def.hh"
24 ADD_THIS_TRANSLATOR (Repeat_engraver);
26 Repeat_engraver::Repeat_engraver ()
31 urg. Way too complicated. needs redesign.
34 Repeat_engraver::do_try_music (Music* m)
36 if (Repeated_music* r = dynamic_cast<Repeated_music *> (m))
38 r->unfold_b_ = get_property ("unfoldRepeats", 0).to_bool ();
42 Music_sequence* alt = r->alternative_p_;
43 Moment repeat_length_mom = r->repeat_p_->length_mom ();
44 Moment stop_mom = now_mom () + repeat_length_mom;
45 Moment alt_mom = now_mom () + repeat_length_mom;
46 if (repeat_length_mom)
48 for (Cons<Music> *i (alt->music_p_list_p_->head_); i && i->next_; i = i->next_)
50 stop_mom += i->car_->length_mom ();
51 if (dynamic_cast<Simultaneous_music *> (alt))
54 repeated_music_arr_.push (r);
55 stop_mom_arr_.push (stop_mom);
59 Counting nested repeats, it seems safest to forbid
60 two pieces of alternative music to start at the same time.
62 for (int i = 0; i < alternative_start_mom_arr_.size (); i++)
63 if (alternative_start_mom_arr_[i] == alt_mom)
67 Coda kludge: see input/test/coda-kludge.ly
70 Scalar prop = get_property ("voltaSpannerDuration", 0);
72 span_mom = prop.to_rat ();
74 int alt_i = r->repeats_i_ + 1 - cons_list_size_i (alt->music_p_list_p_->head_ ) >? 1;
75 for (Cons<Music> *i = alt->music_p_list_p_->head_; i ; i = i->next_)
77 alternative_music_arr_.push (i->car_);
78 alternative_start_mom_arr_.push (alt_mom);
80 alternative_stop_mom_arr_.push (alt_mom + span_mom);
82 alternative_stop_mom_arr_.push (alt_mom + i->car_->length_mom ());
84 if ((alt_i != 1) && (alt_i != r->repeats_i_) && (i == alt->music_p_list_p_->head_))
86 str += to_str (alt_i) + ".";
88 alternative_str_arr_.push (str);
89 if (!dynamic_cast<Simultaneous_music *> (alt))
90 alt_mom += i->car_->length_mom ();
98 Repeat_engraver::acknowledge_element (Score_element_info i)
100 Moment now = now_mom ();
101 if (Note_column *c = dynamic_cast<Note_column *> (i.elem_l_))
103 for (int i = 0; i < volta_p_arr_.size (); i++)
104 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
105 volta_p_arr_[i]->add_column (c);
107 if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
109 for (int i = 0; i < volta_p_arr_.size (); i++)
110 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
111 volta_p_arr_[i]->add_column (c);
116 Repeat_engraver::do_removal_processing ()
118 for (int i = 0; i < volta_p_arr_.size (); i++)
120 typeset_element (volta_p_arr_[i]);
124 Repeat_engraver::do_process_requests ()
126 Moment now = now_mom ();
127 Bar_engraver* bar_engraver_l = dynamic_cast <Bar_engraver*>
128 (daddy_grav_l ()->get_simple_translator ("Bar_engraver"));
129 for (int i = bar_b_arr_.size (); i < repeated_music_arr_.size (); i++)
132 bar_engraver_l->request_bar ("|:");
133 bar_b_arr_.push (true);
135 for (int i = 0; i < bar_b_arr_.size (); i++)
137 if (!bar_b_arr_[i] && (now >= stop_mom_arr_[i]))
140 bar_engraver_l->request_bar (":|");
143 for (int i = volta_p_arr_.size (); i < alternative_music_arr_.size (); i++)
145 Volta_spanner* v = new Volta_spanner;
146 Scalar prop = get_property ("voltaVisibility", 0);
147 v->visible_b_ = prop.to_bool ();
148 prop = get_property ("voltaSpannerDuration", 0);
149 if ((i == alternative_music_arr_.size () - 1) || prop.length_i ())
151 Text_def* t = new Text_def;
152 t->text_str_ = alternative_str_arr_[i];
153 v->number_p_.set_p (t);
154 volta_p_arr_.push (v);
155 announce_element (Score_element_info (v, alternative_music_arr_[i]));
160 Repeat_engraver::do_pre_move_processing ()
162 Moment now = now_mom ();
163 for (int i = bar_b_arr_.size (); i--; )
166 bar_b_arr_[i] = false;
167 if (now >= stop_mom_arr_[i])
170 stop_mom_arr_.del (i);
171 repeated_music_arr_.del (i);
174 for (int i = volta_p_arr_.size (); i--; )
176 if (volta_p_arr_[i] && (now >= alternative_stop_mom_arr_[i])
177 && (volta_p_arr_[i]->column_arr_.size () >= 1))
179 typeset_element (volta_p_arr_[i]);
181 volta_p_arr_.del (i);
182 alternative_music_arr_[i] = 0;
183 alternative_music_arr_.del (i);
184 alternative_start_mom_arr_.del (i);
185 alternative_stop_mom_arr_.del (i);
186 alternative_str_arr_.del (i);
192 Repeat_engraver::do_post_move_processing ()