source file of the GNU LilyPond music typesetter
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
Simple_music_iterator::Simple_music_iterator ()
: Music_iterator ()
{
+ last_processed_mom_ = -1;
}
Simple_music_iterator::Simple_music_iterator (Simple_music_iterator const &src)
: Music_iterator (src)
{
+ last_processed_mom_ = src.last_processed_mom_;
+}
+
+bool
+Simple_music_iterator::ok ()const
+{
+ return last_processed_mom_ < music_length_mom ();
+}
+
+/*
+ TODO: remove last_processed_mom_, and the complete shit. We should
+ only process a simple-music once, and that is at its start.
+
+ Engravers can detect and request the end-moments to be processed as
+ well.
+
+*/
+Moment
+Simple_music_iterator::pending_moment ()const
+{
+ if (last_processed_mom_ < Moment (0))
+ return Moment (0);
+ else
+ return music_length_mom ();
}
void
-Simple_music_iterator::do_process_and_next (Moment m)
+Simple_music_iterator::skip (Moment m)
{
- if (ok ())
- {
- bool b = try_music (get_music ());
- if (!b)
- music_l_->origin ()->warning (_f ("Junking music: `%s'",
- classname (music_l_)));
-
- }
- Music_iterator::do_process_and_next (m);
+ /*
+ docme??!!
+
+ uncommented because setting MUSIC_L_ = 0 causes core dumps with
+ grace notes. */
+
+ // music_l_ = 0;
+
+ last_processed_mom_ = m;
+}
+
+void
+Simple_music_iterator::process (Moment m)
+{
+ /*
+ don't do try_music (), since it would make the function useless for
+ base classes */
+
+ skip (m);
}
+
+IMPLEMENT_CTOR_CALLBACK (Simple_music_iterator);