2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "sequential-iterator.hh"
24 class Volta_repeat_iterator : public Sequential_iterator
27 DECLARE_SCHEME_CALLBACK (constructor, ());
28 Volta_repeat_iterator ();
30 void add_repeat_command (SCM);
32 virtual SCM get_music_list () const;
33 virtual void next_element (bool);
34 virtual void construct_children ();
35 virtual void process (Moment);
43 Volta_repeat_iterator::Volta_repeat_iterator ()
45 done_count_ = alt_count_ = rep_count_ = 0;
50 Volta_repeat_iterator::get_music_list ()const
52 return scm_cons (get_music ()->get_property ("element"),
53 Sequential_iterator::get_music_list ());
57 Volta_repeat_iterator::construct_children ()
59 Sequential_iterator::construct_children ();
61 SCM alts = get_music ()->get_property ("elements");
63 alt_count_ = int (scm_ilength (alts));
64 rep_count_ = scm_to_int (get_music ()->get_property ("repeat-count"));
69 TODO: add source information for debugging
72 Volta_repeat_iterator::add_repeat_command (SCM what)
74 SCM reps = ly_symbol2scm ("repeatCommands");
75 SCM current_reps = SCM_EOL;
76 Context *where = get_outlet ()->where_defined (reps, ¤t_reps);
79 && (current_reps == SCM_EOL || scm_is_pair (current_reps)))
81 current_reps = scm_cons (what, current_reps);
82 where->set_property (reps, current_reps);
87 Volta_repeat_iterator::next_element (bool side_effect)
91 && done_count_ <= alt_count_
92 && !to_boolean (get_outlet ()->get_property ("slurOverRepeat")))
94 SCM ev_scm = scm_call_1 (ly_lily_module_constant ("make-music"),
95 ly_symbol2scm ("BreakSlurEvent"));
96 Music *ev = unsmob_music (ev_scm);
97 ev->send_to_context (get_outlet ());
99 ev_scm = scm_call_1 (ly_lily_module_constant ("make-music"),
100 ly_symbol2scm ("BreakPhrasingSlurEvent"));
101 ev = unsmob_music (ev_scm);
102 ev->send_to_context (get_outlet ());
105 Sequential_iterator::next_element (side_effect);
111 string repstr = to_string (rep_count_ - alt_count_ + done_count_) + ".";
114 add_repeat_command (scm_list_n (ly_symbol2scm ("volta"), SCM_BOOL_F, SCM_UNDEFINED));
116 if (done_count_ - 1 < alt_count_)
117 add_repeat_command (ly_symbol2scm ("end-repeat"));
120 if (done_count_ == 1 && alt_count_ < rep_count_)
121 repstr = "1.--" + to_string (rep_count_ - alt_count_ + done_count_) + ".";
123 if (done_count_ <= alt_count_)
124 add_repeat_command (scm_list_n (ly_symbol2scm ("volta"),
125 ly_string2scm (repstr), SCM_UNDEFINED));
128 add_repeat_command (ly_symbol2scm ("end-repeat"));
133 Volta_repeat_iterator::process (Moment m)
137 add_repeat_command (ly_symbol2scm ("start-repeat"));
140 Sequential_iterator::process (m);
143 IMPLEMENT_CTOR_CALLBACK (Volta_repeat_iterator);