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 stop_mom = now_moment () + r->repeat_p_->duration ();
40 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok () && (i != alt->music_p_list_p_->bottom ()); i++)
42 stop_mom += i->duration ();
43 if (dynamic_cast<Simultaneous_music *> (alt))
46 Moment alt_mom = now_moment () + r->repeat_p_->duration ();
49 figure out what we don't want.
51 we don't want to print more than one set of
52 |: :| and volta brackets on one staff.
54 counting nested repeats, it seems safest to forbid
55 two pieces of alternative music to start at the same time.
57 for (int i = 0; i < alternative_start_mom_arr_.size (); i++)
58 if (alternative_start_mom_arr_[i] == alt_mom)
60 repeated_music_arr_.push (r);
61 stop_mom_arr_.push (stop_mom);
62 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok (); i++)
64 alternative_music_arr_.push (i.ptr ());
65 alternative_start_mom_arr_.push (alt_mom);
66 alternative_stop_mom_arr_.push (alt_mom + i->duration ());
67 if (!dynamic_cast<Simultaneous_music *> (alt))
68 alt_mom += i->duration ();
76 Repeat_engraver::acknowledge_element (Score_element_info i)
78 Moment now = now_moment ();
79 if (Note_column *c = dynamic_cast<Note_column *> (i.elem_l_))
81 for (int i = 0; i < volta_p_arr_.size (); i++)
82 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
83 volta_p_arr_[i]->add_column (c);
85 if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
87 for (int i = 0; i < volta_p_arr_.size (); i++)
88 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
89 volta_p_arr_[i]->add_column (c);
94 Repeat_engraver::do_removal_processing ()
96 for (int i = 0; i < volta_p_arr_.size (); i++)
98 typeset_element (volta_p_arr_[i]);
102 Repeat_engraver::do_process_requests ()
104 Moment now = now_moment ();
105 Bar_engraver* bar_engraver_l = dynamic_cast <Bar_engraver*>
106 (daddy_grav_l ()->get_simple_translator ("Bar_engraver"));
107 for (int i = bar_b_arr_.size (); i < repeated_music_arr_.size (); i++)
109 if (bar_engraver_l && (now > Moment (0)))
110 bar_engraver_l->request_bar ("|:");
111 bar_b_arr_.push (true);
113 for (int i = 0; i < bar_b_arr_.size (); i++)
115 if (!bar_b_arr_[i] && (now >= stop_mom_arr_[i]))
118 bar_engraver_l->request_bar (":|");
121 int bees = volta_p_arr_.size ();
122 for (int i = volta_p_arr_.size (); i < alternative_music_arr_.size (); i++)
124 Volta_spanner* v = new Volta_spanner;
125 Scalar prop = get_property ("voltaVisibility", 0);
126 v->visible_b_ = prop.to_bool ();
127 if (i == alternative_music_arr_.size () - 1)
129 Text_def* t = new Text_def;
130 t->text_str_ = to_str (i - bees + 1);
131 v->number_p_.set_p (t);
132 volta_p_arr_.push (v);
133 announce_element (Score_element_info (v, alternative_music_arr_[i]));
138 Repeat_engraver::do_pre_move_processing ()
140 Moment now = now_moment ();
141 for (int i = bar_b_arr_.size (); i--; )
144 bar_b_arr_[i] = false;
145 if (now >= stop_mom_arr_[i])
148 stop_mom_arr_.del (i);
149 repeated_music_arr_.del (i);
152 for (int i = volta_p_arr_.size (); i--; )
154 if (volta_p_arr_[i] && (now >= alternative_stop_mom_arr_[i])
155 && (volta_p_arr_[i]->column_arr_.size () >= 1))
157 typeset_element (volta_p_arr_[i]);
159 volta_p_arr_.del (i);
160 alternative_music_arr_[i] = 0;
161 alternative_music_arr_.del (i);
162 alternative_start_mom_arr_.del (i);
163 alternative_stop_mom_arr_.del (i);
169 Repeat_engraver::do_post_move_processing ()
172 Time_description const *time = get_staff_info().time_C_;
173 Moment now = now_moment ();
174 for (int i = volta_p_arr_.size (); i--; )
176 if ((now > alternative_stop_mom_arr_[i])
177 && !time->whole_in_measure_)
180 volta_p_arr_.del (i);
181 alternative_music_arr_[i] = 0;
182 alternative_music_arr_.del (i);
183 alternative_start_mom_arr_.del (i);
184 alternative_stop_mom_arr_.del (i);