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 "musical-request.hh"
12 #include "multi-measure-rest.hh"
13 #include "command-request.hh"
14 #include "time-description.hh"
15 #include "engraver-group.hh"
16 #include "repeated-music.hh"
17 #include "time-description.hh"
18 #include "volta-spanner.hh"
19 #include "note-column.hh"
21 ADD_THIS_TRANSLATOR (Repeat_engraver);
23 Repeat_engraver::Repeat_engraver ()
28 Repeat_engraver::do_try_music (Music* m)
30 if (Repeated_music* r = dynamic_cast<Repeated_music *> (m))
32 r->unfold_b_ = get_property ("unfoldRepeats", 0).to_bool ();
36 Music_sequence* alt = r->alternative_p_;
37 Moment stop_mom = now_moment () + r->repeat_p_->duration ();
38 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok () && (i != alt->music_p_list_p_->bottom ()); i++)
40 stop_mom += i->duration ();
41 if (dynamic_cast<Simultaneous_music *> (alt))
44 Moment alt_mom = now_moment () + r->repeat_p_->duration ();
47 figure out what we don't want.
49 we don't want to print more than one set of
50 |: :| and volta brackets on one staff.
52 counting nested repeats, it seems safest to forbid
53 two pieces of alternative music to start at the same time.
55 for (int i = 0; i < alternative_start_mom_arr_.size (); i++)
56 if (alternative_start_mom_arr_[i] == alt_mom)
58 repeated_music_arr_.push (r);
59 stop_mom_arr_.push (stop_mom);
60 for (PCursor<Music*> i (alt->music_p_list_p_->top ()); i.ok (); i++)
62 alternative_music_arr_.push (i.ptr ());
63 alternative_start_mom_arr_.push (alt_mom);
64 alternative_stop_mom_arr_.push (alt_mom + i->duration ());
65 if (!dynamic_cast<Simultaneous_music *> (alt))
66 alt_mom += i->duration ();
74 Repeat_engraver::acknowledge_element (Score_element_info i)
76 Moment now = now_moment ();
77 if (Note_column *c = dynamic_cast<Note_column *> (i.elem_l_))
79 for (int i = 0; i < volta_p_arr_.size (); i++)
80 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
81 volta_p_arr_[i]->add_column (c);
83 if (Bar *c = dynamic_cast<Bar*> (i.elem_l_))
85 for (int i = 0; i < volta_p_arr_.size (); i++)
86 if (volta_p_arr_[i] && (now >= alternative_start_mom_arr_[i]))
87 volta_p_arr_[i]->add_column (c);
92 Repeat_engraver::do_removal_processing ()
94 for (int i = 0; i < bar_p_arr_.size (); i++)
96 typeset_element (bar_p_arr_[i]);
97 for (int i = 0; i < volta_p_arr_.size (); i++)
99 typeset_element (volta_p_arr_[i]);
103 Repeat_engraver::do_process_requests ()
105 Moment now = now_moment ();
106 for (int i = bar_p_arr_.size (); i < repeated_music_arr_.size (); i++)
108 Bar* bar_p = new Bar;
109 bar_p-> type_str_ = "|:";
110 bar_p_arr_.push (bar_p);
111 if (now > Moment (0))
112 announce_element (Score_element_info (bar_p, repeated_music_arr_[i]));
114 for (int i = 0; i < bar_p_arr_.size (); i++)
116 if (!bar_p_arr_[i] && (now >= stop_mom_arr_[i]))
118 Bar* bar_p = new Bar;
119 bar_p-> type_str_ = ":|";
120 bar_p_arr_[i] = bar_p;
121 announce_element (Score_element_info (bar_p, repeated_music_arr_[i]));
124 int bees = volta_p_arr_.size ();
125 for (int i = volta_p_arr_.size (); i < alternative_music_arr_.size (); i++)
127 Volta_spanner* v = new Volta_spanner;
128 if (i == alternative_music_arr_.size () - 1)
130 Text_def* t = new Text_def;
131 t->text_str_ = to_str (i - bees + 1);
132 v->number_p_.set_p (t);
133 volta_p_arr_.push (v);
134 announce_element (Score_element_info (v, alternative_music_arr_[i]));
139 Repeat_engraver::do_pre_move_processing ()
141 Moment now = now_moment ();
142 for (int i = bar_p_arr_.size (); i--; )
146 if (now > Moment (0))
147 typeset_element (bar_p_arr_[i]);
149 delete bar_p_arr_[i];
152 if (now >= stop_mom_arr_[i])
155 stop_mom_arr_.del (i);
156 repeated_music_arr_.del (i);
159 Time_description const *time = get_staff_info().time_C_;
160 for (int i = volta_p_arr_.size (); i--; )
162 if (volta_p_arr_[i] && (now >= alternative_stop_mom_arr_[i])
163 && (volta_p_arr_[i]->column_arr_.size () >= 1))
164 // if (volta_p_arr_[i] && (now > alternative_stop_mom_arr_[i])
165 // && !time->whole_in_measure_
166 // && (volta_p_arr_[i]->column_arr_.size () > 1))
168 typeset_element (volta_p_arr_[i]);
170 volta_p_arr_.del (i);
171 alternative_music_arr_[i] = 0;
172 alternative_music_arr_.del (i);
173 alternative_start_mom_arr_.del (i);
174 alternative_stop_mom_arr_.del (i);
180 Repeat_engraver::do_post_move_processing ()
183 Time_description const *time = get_staff_info().time_C_;
184 Moment now = now_moment ();
185 for (int i = volta_p_arr_.size (); i--; )
187 if ((now > alternative_stop_mom_arr_[i])
188 && !time->whole_in_measure_)
191 volta_p_arr_.del (i);
192 alternative_music_arr_[i] = 0;
193 alternative_music_arr_.del (i);
194 alternative_start_mom_arr_.del (i);
195 alternative_stop_mom_arr_.del (i);