2 repeat-acknowledge-engraver.cc -- implement Repeat_acknowledge_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "translator-group.hh"
11 #include "repeated-music.hh"
17 -- set and reset repeatCommands, so Unfolded_repeat_iterator knows
18 where to set variables.
20 -- collect information passed by Unfolded_repeat_iterator for
21 Bar_engraver: writes whichBar property. (TODO: check for
22 interactions with timing engraver.)
25 class Repeat_acknowledge_engraver : public Engraver
28 VIRTUAL_COPY_CONS (Translator);
29 Repeat_acknowledge_engraver();
31 virtual void start_translation_timestep ();
32 virtual void process_music ();
33 virtual void initialize ();
39 Repeat_acknowledge_engraver::initialize ()
42 daddy_trans_l_->set_property ("repeatCommands", SCM_EOL);
46 Repeat_acknowledge_engraver::Repeat_acknowledge_engraver()
51 Repeat_acknowledge_engraver::start_translation_timestep ()
54 Translator_group * tr = daddy_trans_l_->where_defined (ly_symbol2scm ("repeatCommands"));
58 tr->set_property ("repeatCommands", SCM_EOL);
62 Repeat_acknowledge_engraver::process_music ()
65 At the start of a piece, we don't print any repeat bars.
67 if (now_mom () == Moment (0))
70 SCM cs = get_property ("repeatCommands");
75 bool volta_found = false;
76 while (gh_pair_p (cs))
78 SCM command = gh_car (cs);
79 if (command == ly_symbol2scm ("start-repeat"))
81 else if (command == ly_symbol2scm ("end-repeat"))
83 else if (gh_pair_p (command) && gh_car (command) == ly_symbol2scm ("volta"))
96 TODO: line breaks might be allowed if we set whichBar to "".
98 if (s != "" || (volta_found && !gh_string_p (get_property ("whichBar"))))
100 daddy_trans_l_->set_property ("whichBar", ly_str02scm(s.ch_C()));
104 ADD_THIS_TRANSLATOR(Repeat_acknowledge_engraver);