X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-heads-engraver.cc;h=e3fce707fae3210d16c222c4a1b735ec8d349b65;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=bd8b1c8a86810d6223bfb2750561d4fbc2ebfd0b;hpb=2badebc070d68e48945592125b9aee3a42e8e73a;p=lilypond.git

diff --git a/lily/note-heads-engraver.cc b/lily/note-heads-engraver.cc
index bd8b1c8a86..e3fce707fa 100644
--- a/lily/note-heads-engraver.cc
+++ b/lily/note-heads-engraver.cc
@@ -1,125 +1,127 @@
 /*
-  head-grav.cc -- part of GNU LilyPond
+  note-heads-engraver.cc -- part of GNU LilyPond
 
-  (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
-#include <ctype.h>
 
+#include "engraver.hh"
+
+#include <cctype>
+using namespace std;
+
+#include "duration.hh"
+#include "item.hh"
+#include "output-def.hh"
+#include "pitch.hh"
 #include "rhythmic-head.hh"
-#include "paper-def.hh"
-#include "event.hh"
-#include "dots.hh"
-#include "dot-column.hh"
 #include "staff-symbol-referencer.hh"
-#include "item.hh"
-#include "engraver.hh"
+#include "stream-event.hh"
 #include "warn.hh"
 
-/**
-  make balls and rests
- */
+#include "translator.icc"
 
 class Note_heads_engraver : public Engraver
 {
-  Link_array<Item> notes_;
-  
-  Link_array<Item> dots_;
-  Link_array<Music> note_reqs_;
+  vector<Item*> notes_;
+  vector<Stream_event*> note_evs_;
 
 public:
-  TRANSLATOR_DECLARATIONS(Note_heads_engraver);
+  TRANSLATOR_DECLARATIONS (Note_heads_engraver);
 
 protected:
-  virtual bool try_music (Music *req) ;
-  virtual void process_music ();
-
-  virtual void stop_translation_timestep ();
+  DECLARE_TRANSLATOR_LISTENER (note);
+  void process_music ();
+  void stop_translation_timestep ();
 };
 
-Note_heads_engraver::Note_heads_engraver()
+Note_heads_engraver::Note_heads_engraver ()
 {
 }
 
-bool
-Note_heads_engraver::try_music (Music *m) 
+IMPLEMENT_TRANSLATOR_LISTENER (Note_heads_engraver, note);
+void
+Note_heads_engraver::listen_note (Stream_event *ev)
 {
-  if (m->is_mus_type ("note-event"))
-    {
-      note_reqs_.push (m);
-      return true;
-    }
-  else if (m->is_mus_type ("busy-playing-event"))
-    return note_reqs_.size ();
-  else if (m->is_mus_type ("start-playing-event"))
-    return note_reqs_.size ();
-  
-  return false;
+  note_evs_.push_back (ev);
 }
 
-
 void
 Note_heads_engraver::process_music ()
 {
-  for (int i=0; i < note_reqs_.size (); i++)
+  SCM c0 = get_property ("middleCPosition");
+  SCM layout_proc = get_property("staffLineLayoutFunction");
+      
+  for (vsize i = 0; i < note_evs_.size (); i++)
     {
-      Item *note = make_item ("NoteHead");
+      Stream_event *ev = note_evs_[i];
+      Item *note = make_item ("NoteHead", ev->self_scm ());
 
-      Music * req = note_reqs_[i];
-      
-      Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
+      Pitch *pit = unsmob_pitch (ev->get_property ("pitch"));
 
-      note->set_grob_property ("duration-log", gh_int2scm (dur.duration_log ()));
+#if 0 /* TODO: should have a mechanism to switch off these warnings. */
 
-      if (dur.dot_count ())
-	{
-	  Item * d = make_item ("Dots");
-	  Rhythmic_head::set_dots (note, d);
-	  
-	  if (dur.dot_count ()
-	      != robust_scm2int (d->get_grob_property ("dot-count"), 0))
-	    d->set_grob_property ("dot-count", gh_int2scm (dur.dot_count ()));
-
-	  d->set_parent (note, Y_AXIS);
-	  announce_grob (d, SCM_EOL);
-	  dots_.push (d);
-	}
+      if (!pit)
+	ev->origin ()->warning (_ ("NoteEvent without pitch"));
+#endif
+
+      int pos;
+      if (pit == 0)
+	pos = 0;
+      else if (ly_is_procedure (layout_proc)){
+	SCM pitch = ev->get_property("pitch");
+	pos = scm_to_int(scm_call_1 (layout_proc, pitch));
+      }
+      else 
+	pos = pit->steps ();
 
-      Pitch *pit =unsmob_pitch (req->get_mus_property ("pitch"));
+      if (scm_is_number (c0))
+	pos += scm_to_int(c0);
+      
+      note->set_property ("staff-position", scm_from_int (pos));
 
-      int pos = pit->steps ();
-      SCM c0 = get_property ("centralCPosition");
-      if (gh_number_p (c0))
-	pos += gh_scm2int (c0);
+      /*
+	Shape note heads change on step of the scale.
+      */
+      SCM shape_vector = get_property ("shapeNoteStyles");
+      if (scm_is_vector (shape_vector))
+	{
+	  SCM scm_tonic = get_property ("tonic");
+	  Pitch tonic (0, 0, 0);
+	  if (unsmob_pitch (scm_tonic))
+	    tonic = *unsmob_pitch (scm_tonic);
+
+	  unsigned int delta = (pit->get_notename () - tonic.get_notename () + 7) % 7;
+
+	  SCM style = SCM_EOL;
+	  if (scm_c_vector_length (shape_vector) > delta
+	      && scm_is_symbol (scm_vector_ref (shape_vector, scm_from_int (delta))))
+	    style = scm_vector_ref (shape_vector, scm_from_int (delta));
+	  if (scm_is_symbol (style))
+	    note->set_property ("style", style);
+	}
 
-      note->set_grob_property ("staff-position",   gh_int2scm (pos));
-      announce_grob (note,req->self_scm());
-      notes_.push (note);
+      notes_.push_back (note);
     }
 }
 
 void
 Note_heads_engraver::stop_translation_timestep ()
 {
-  for (int i=0; i < notes_.size (); i++)
-    {
-      typeset_grob (notes_[i]);
-    }
-
   notes_.clear ();
-  for (int i=0; i < dots_.size (); i++)
-    {
-      typeset_grob (dots_[i]);
-    }
-  dots_.clear ();
-  note_reqs_.clear ();
+  note_evs_.clear ();
 }
 
+ADD_TRANSLATOR (Note_heads_engraver,
+		/* doc */
+		"Generate note heads.",
+
+		/* create */
+		"NoteHead ",
 
+		/* read */
+		"middleCPosition "
+		"staffLineLayoutFunction ",
 
-ENTER_DESCRIPTION(Note_heads_engraver,
-/* descr */       "Generate noteheads.",
-/* creats*/       "NoteHead Dots",
-/* accepts */     "note-event busy-playing-event ligature-event abort-event",
-/* acks  */      "",
-/* reads */       "centralCPosition",
-/* write */       "");
+		/* write */
+		""
+		);