]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/music-iterator.cc
release: 1.3.106
[lilypond.git] / lily / music-iterator.cc
index 3d22831fbfa9ecec925e97be98e3b583a0144cb4..08f454fae1e303b8d255c0579729d7f2876735ad 100644 (file)
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
+
+/*
+  UGH. too many includes.
+ */
 #include "debug.hh"
-#include "music-list.hh"
 #include "music-iterator.hh"
 #include "property-iterator.hh"
-#include "request-iterator.hh"
+#include "request-chord-iterator.hh"
 #include "sequential-music-iterator.hh"
 #include "simultaneous-music-iterator.hh"
 #include "translator-group.hh"
-#include "translation-property.hh"
 #include "change-iterator.hh"
-#include "change-translator.hh"
 #include "music-wrapper.hh"
 #include "music-wrapper-iterator.hh"
-#include "compressed-music-iterator.hh"
-#include "compressed-music.hh"
+#include "time-scaled-music-iterator.hh"
 #include "repeated-music.hh"
-#include "repeated-music-iterator.hh"
-
-void
-Music_iterator::do_print() const
+#include "folded-repeat-iterator.hh"
+#include "unfolded-repeat-iterator.hh"
+#include "grace-iterator.hh"
+#include "lyric-combine-music-iterator.hh"
+#include "auto-change-iterator.hh"
+#include "part-combine-music-iterator.hh"
+#include "simple-music-iterator.hh"
+#include "output-property-music-iterator.hh"
+#include "chord-tremolo-iterator.hh"
+#include "context-specced-music.hh"
+
+Music_iterator::Music_iterator ()
 {
+  //  clone_i_ = 0;
 }
 
-void
-Music_iterator::print() const
-{
-#ifndef NPRINT
-  if (!check_debug)
-    return ;
-  DOUT << classname(this) << "{";
-  DOUT << "report to " << 
-    report_to_l() << " (" << classname (report_to_l ()) << ")\n";
-  if (ok())
-    DOUT << "next at " << next_moment() << " ";
-  else
-    DOUT << "not feeling well today..";
-  do_print();
-  DOUT << "}\n";
-#endif
-}
-
-Translator_group*
-Music_iterator::get_req_translator_l()
+Music_iterator::Music_iterator (Music_iterator const& src)
 {
-  assert (report_to_l());
-  if (report_to_l()->is_bottom_translator_b ())
-    return report_to_l();
-
-  set_translator (report_to_l()->get_default_interpreter ());
-  return report_to_l();
+  //  clone_i_ = src.clone_i_ + 1;
+  handle_ = *src.handle_.clone ();
+  music_l_ = src.music_l_;
+  music_length_ = src.music_length_;
 }
 
-void
-Music_iterator::push_translator (Translator_group*t)
+Music_iterator::~Music_iterator ()
 {
-  report_to_l_arr_.push (t);
-  t->iterator_count_ ++;
 }
 
-void
-Music_iterator::pop_translator()
-{
-  report_to_l()->iterator_count_ --;
-  assert (report_to_l()->iterator_count_ >=0);
-  report_to_l_arr_.pop();
-}
+
+
 
 Translator_group* 
-Music_iterator::report_to_l() const
+Music_iterator::report_to_l () const
 {
-  if (! report_to_l_arr_.size())
-    return 0;
-  return report_to_l_arr_.top();
+  return handle_.report_to_l ();
 }
 
 
 void
-Music_iterator::set_translator (Translator_group*trans)
-{   
-  if (report_to_l()==trans)
-    return;
-  if (report_to_l())
-    pop_translator();
-  if (trans)
-    push_translator (trans);
-}
-
-void
-Music_iterator::construct_children()
+Music_iterator::set_translator (Translator_group *trans)
 {
-
+  handle_.set_translator (trans);
 }
 
-Music_iterator::~Music_iterator()
+void
+Music_iterator::construct_children ()
 {
-  set_translator (0);
 }
 
 Moment
-Music_iterator::next_moment() const
+Music_iterator::pending_moment () const
 {
   return 0;
 }
 
 
 void
-Music_iterator::process_and_next (Moment m)
+Music_iterator::process (Moment)
+{
+}
+
+bool
+Music_iterator::ok () const
 {
-  do_process_and_next (m);
+  return false;
 }
 
 void
-Music_iterator::do_process_and_next (Moment)
+Music_iterator::skip (Moment )
 {
-  first_b_ = false;
 }
 
-bool
-Music_iterator::ok() const
+SCM
+Music_iterator::get_music (Moment)const
 {
-  return first_b_;
+  return SCM_EOL;
 }
 
+
+
+/* We could do this decentrally:
+
+ -  Declare a new smob-type, which stores a function ptr in its CDR
+   (and not a struct ptr). The function ptr has signature
+
+       Music_iterator* (*)()
+
+ - initialize  all music with a set_mus_property("iterator-ctor"),
+
+ - do
+    func_ptr  p = (func_ptr) gh_cdr (get_mus_property ("iterator-ctor"));
+    iter_p = (*p)();
+
+*/
+
 Music_iterator*
-Music_iterator::static_get_iterator_p (Music const *m, Translator_group *report_l)
+Music_iterator::static_get_iterator_p (Music *m)
 {
   Music_iterator * p =0;
-  if (dynamic_cast<Request_chord  const *> (m))
+
+  SCM type = m->get_mus_property ("type") ;
+
+  if (type == ly_symbol2scm ("property-set"))
+    p = new Property_iterator;
+  else if (type == ly_symbol2scm ("property-push"))
+    p = new Push_property_iterator;
+  else if (type == ly_symbol2scm ("property-pop"))
+    p = new Pop_property_iterator;
+  else if (type == ly_symbol2scm ("output-property"))
+    p = new Output_property_music_iterator;
+  else if (type == ly_symbol2scm ("request-chord"))
     p = new Request_chord_iterator;
-  else if (dynamic_cast<Simultaneous_music  const *> (m)) 
+  else  if (type == ly_symbol2scm ("lyric-combine-music"))
+    p = new Lyric_combine_music_iterator;
+  else if  (type == ly_symbol2scm ("simultaneous-music"))
     p =  new Simultaneous_music_iterator;
-  else if (dynamic_cast<Sequential_music  const *> (m)) 
+  else if (type == ly_symbol2scm ("sequential-music"))
     p =  new Sequential_music_iterator;
-  else if (dynamic_cast<Translation_property  const *> (m))
-    p = new Property_iterator;
-  else if (dynamic_cast<Change_translator  const *> (m))
+  else if (type == ly_symbol2scm ("change-translator"))
     p = new Change_iterator;
-  else if (dynamic_cast<Compressed_music  const *> (m))
-    p = new Compressed_music_iterator;
-  else if (dynamic_cast<Music_wrapper  const *> (m))
+  else if (type == ly_symbol2scm ("time-scaled-music"))
+    p = new Time_scaled_music_iterator;
+  else if (type == ly_symbol2scm ("grace-music"))
+    p = new Grace_iterator;
+  else if (type == ly_symbol2scm ("auto-change-music"))
+    p = new Auto_change_iterator;
+  else if (type == ly_symbol2scm ("part-combined-music"))
+    p = new Part_combine_music_iterator;
+  else if (dynamic_cast<Music_wrapper   *> (m))
     p = new Music_wrapper_iterator;
-  else if (dynamic_cast<Repeated_music const *> (m))
-    p = new Repeated_music_iterator;
+  else if (Repeated_music  * n = dynamic_cast<Repeated_music  *> (m))
+    {
+      if (n->type_ == "tremolo")
+       p = new Chord_tremolo_iterator;
+      else if (n->fold_b_)
+       p = new Folded_repeat_iterator;
+      else
+       p = new Unfolded_repeat_iterator;
+    }
   else
-    assert (0);
-
-  p->music_l_ = m;
-  if (m->translator_type_str_.length_i ())
     {
-      Translator_group* a =report_l->
-       find_create_translator_l (m->translator_type_str_, m->translator_id_str_);
-      p->set_translator (a);
+      p = new Simple_music_iterator ;
     }
 
-  if (! p->report_to_l())
-    p ->set_translator (report_l);
-
+  p->music_l_ = m;
+  p->music_length_ = m->length_mom ();
   
   return p;
 }
 
 
+Moment
+Music_iterator::music_length_mom() const
+{
+  return music_length_;
+}
+
+void
+Music_iterator::init_translator (Music *m, Translator_group *report_l)
+{
+  music_l_ = m;
+  if (Context_specced_music * csm =dynamic_cast<Context_specced_music *> (m))
+    {
+      SCM ct = csm->get_mus_property ("context-type");
+      String c_type;
+      if (gh_string_p (ct))
+         c_type =  ly_scm2string (ct);
+      
+      String c_id;
+      SCM ci = csm->get_mus_property ("context-id");
+      if (gh_string_p (ci))
+       c_id = ly_scm2string (ci);
+      
+      Translator_group* a
+       =report_l->find_create_translator_l (c_type, c_id);
+
+      set_translator (a);
+      
+    }
+
+  if (! report_to_l ())
+    set_translator (report_l);
+}
+
+
 Music_iterator*
-Music_iterator::get_iterator_p (Music const*m) const
+Music_iterator::get_iterator_p (Music *m) const
 {
-  Music_iterator*p = static_get_iterator_p (m, report_to_l());
-  p->construct_children();
+  Music_iterator*p = static_get_iterator_p (m);
+  p->init_translator (m, report_to_l ());
+  
+  p->construct_children ();
   return p;
 }
 
-Music_iterator::Music_iterator()
+Music_iterator*
+Music_iterator::try_music (Music *m) const
 {
-  first_b_ = true;
+  bool b = report_to_l ()->try_music ( (Music*)m); // ugh
+  Music_iterator * it = b ? (Music_iterator*) this : 0;        // ugh
+  if (!it)
+    it = try_music_in_children (m);
+  return it;
 }
 
+Music_iterator*
+Music_iterator::try_music_in_children (Music *) const
+{
+  return 0;
+}