X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmusic-sequence.cc;h=90b5258f1dc915a52b1d77d5dd0d5fa8c30e4fd7;hb=9362af693c2e902d788067f9aff3654ad45d04ff;hp=52ed3fecce83e604c9b6ddfdbc61785fac61977c;hpb=41c075bc0a4419c0e3646b7d554b1677b71f5a43;p=lilypond.git

diff --git a/lily/music-sequence.cc b/lily/music-sequence.cc
index 52ed3fecce..90b5258f1d 100644
--- a/lily/music-sequence.cc
+++ b/lily/music-sequence.cc
@@ -3,45 +3,135 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 #include "music-list.hh"
-#include "debug.hh"
-#include "musical-pitch.hh"
+#include "warn.hh"
+#include "pitch.hh"
+#include "input.hh"
 
-Music_sequence::Music_sequence (Music_sequence const&s)
-  : Music (s)
+SCM
+Music_sequence::music_list ()const
 {
-  music_p_list_p_ = new Music_list (*s.music_p_list_p_);
+  return get_property ("elements");
 }
 
+/*
+  Ugh this sucks. Linear. do not use.
+ */
+void
+Music_sequence::append_music (Music *m)
+{
+  set_property ("elements",
+		    ly_append2 (music_list (), scm_cons (m->self_scm (), SCM_EOL)));
+  scm_gc_unprotect_object (m->self_scm ());
+}
 
-
-Music_sequence::Music_sequence(Music_list *mlist_p)
+Music_sequence::Music_sequence ( )
+  : Music ()
 {
-  music_p_list_p_ = mlist_p;
 }
 
 void
-Music_sequence::transpose (Musical_pitch rq)
+transpose_music_list (SCM l,  Pitch rq)
 {
-  for (Cons<Music> *i = music_p_list_p_->head_cons_p_; i;  i = i->next_cons_p_)
-    i->car_p_->transpose (rq);    
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    unsmob_music (ly_car (s))->transpose (rq);    
 }
 
-void
-Music_sequence::do_print() const
+Moment
+Music_sequence::cumulative_length (SCM l) 
+{
+  Moment cumulative;
+  Moment last_len; 
+
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    {
+      Moment l = unsmob_music (ly_car (s))->get_length ();
+      if (last_len.grace_part_ && l.main_part_)
+	{
+	  last_len.grace_part_ = Rational (0);
+	}
+      cumulative += last_len;
+      last_len = l;
+    }
+
+  last_len.grace_part_ = Rational (0);
+  cumulative += last_len;
+
+  return  cumulative;
+}
+
+Moment
+Music_sequence::maximum_length (SCM l)
+{
+  Moment dur = 0;
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    {
+      Music * m = unsmob_music (ly_car (s));
+      Moment l = m->get_length ();
+      dur = dur >? l;
+    }
+
+  return dur;
+}
+
+Pitch
+music_list_to_relative (SCM l,Pitch p, bool ret_first)
 {
-#ifndef NPRINT
-  for (Cons<Music> *i = music_p_list_p_->head_cons_p_; i;  i = i->next_cons_p_)  
-    i->car_p_->print();
-#endif 
+  Pitch first = p;
+  int count=0;
+
+  Pitch last = p;
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    {
+      if (Music *m = unsmob_music (ly_car (s)))
+	{
+	  last = m->to_relative_octave (last);
+	  if (!count ++)
+	    first = last;
+	}
+    }
+
+  return  (ret_first)?  first : last;
 }
 
 
 void
-Music_sequence::add_music (Music *m_p)
+compress_music_list (SCM l, Moment m)
+{
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    unsmob_music (ly_car (s))->compress (m);
+}
+
+ADD_MUSIC (Music_sequence);
+
+Moment
+Music_sequence::minimum_start (SCM l)
 {
-  music_p_list_p_->add_music (m_p);
+  Moment m;
+  
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    {
+      m = m <? unsmob_music (ly_car (s))->start_mom ();
+    }
+  return m;
 }
+
+Moment
+Music_sequence::first_start (SCM l) 
+{
+  Moment m;
+  
+  for (SCM s = l; ly_c_pair_p (s);  s = ly_cdr (s))
+    {
+      Music * mus = unsmob_music (ly_car (s));
+      Moment l = mus->get_length ();
+      Moment s = mus->start_mom ();
+      if (l.to_bool () || s.to_bool ())
+	return s;
+    }
+  return m;
+}
+