2 repeated-music-iterator.cc -- implement Folded_repeat_iterator
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 Folded repeats are a stupid idea at this point, so we refrain from
13 implementing get_music () and skip ().
16 #include "folded-repeat-iterator.hh"
17 #include "repeated-music.hh"
18 #include "music-list.hh"
19 #include "simultaneous-music-iterator.hh"
20 #include "translator-group.hh"
22 Folded_repeat_iterator::Folded_repeat_iterator ()
25 alternative_iter_p_
= 0;
29 Folded_repeat_iterator::ok () const
31 return main_iter_p_
|| alternative_iter_p_
;
34 Folded_repeat_iterator::~Folded_repeat_iterator ()
37 delete alternative_iter_p_
;
40 Folded_repeat_iterator::Folded_repeat_iterator (Folded_repeat_iterator
const &src
)
41 : Music_iterator (src
)
43 main_iter_p_
= src
.main_iter_p_
? src
.main_iter_p_
->clone () : 0;
44 alternative_iter_p_
= src
.alternative_iter_p_
? src
.alternative_iter_p_
->clone () : 0;
45 main_length_mom_
= src
.main_length_mom_
;
49 Folded_repeat_iterator::pending_moment () const
53 return main_iter_p_
->pending_moment ();
56 return main_length_mom_
+ alternative_iter_p_
->pending_moment ();
60 Folded_repeat_iterator::construct_children ()
62 Repeated_music
* mus
= dynamic_cast<Repeated_music
*> (music_l ());
63 main_iter_p_
= get_iterator_p (mus
->body ());
64 if (!main_iter_p_
->ok ())
72 Folded_repeat_iterator::process (Moment m
)
76 bool success
= try_music (music_l ());
78 music_l ()->origin ()->warning (_ ("no one to print a repeat brace"));
83 main_iter_p_
->process (m
);
84 if (!main_iter_p_
->ok ())
88 if (!main_iter_p_
&& !alternative_iter_p_
)
93 if (alternative_iter_p_
)
95 alternative_iter_p_
->process (m
- main_length_mom_
);
96 if (!alternative_iter_p_
->ok ())
98 delete alternative_iter_p_
;
99 alternative_iter_p_
=0;
105 Folded_repeat_iterator::leave_body ()
107 Repeated_music
* mus
= dynamic_cast<Repeated_music
*> (music_l ());
110 main_length_mom_
+= mus
->body ()->length_mom ();
114 Folded_repeat_iterator::enter_alternative ()
116 Repeated_music
* mus
= dynamic_cast<Repeated_music
*> (music_l ());
117 if (mus
->alternatives ())
119 Simultaneous_music_iterator
* s
= new Simultaneous_music_iterator
;
120 s
->separate_contexts_b_
= true;
121 s
->init_translator (mus
->alternatives (), report_to_l ());
123 alternative_iter_p_
= s
;
124 alternative_iter_p_
->construct_children ();
130 Folded_repeat_iterator::try_music_in_children (Music
* m
) const
134 return main_iter_p_
->try_music (m
);
136 if (alternative_iter_p_
)
137 return alternative_iter_p_
->try_music (m
);
141 IMPLEMENT_CTOR_CALLBACK (Folded_repeat_iterator
);