2003 -> 2004

[lilypond.git] / lily / custos-engraver.cc

diff --git a/lily/custos-engraver.cc b/lily/custos-engraver.cc
index 77e354d63222d96acb412f340a9c0f58854f77fc..173fb6720ca755ab975a2142f825493404697820 100644 (file)
--- a/lily/custos-engraver.cc
+++ b/lily/custos-engraver.cc
@@ -3,40 +3,40 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (C) 2000 Juergen Reuter <reuterj@ira.uka.de>,
-
-  Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
+  (c) 2000--2004 Juergen Reuter <reuter@ipd.uka.de>,
+                  Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "engraver.hh"
-#include "bar.hh"
+#include "bar-line.hh"
 #include "item.hh"
 #include "note-head.hh"
 #include "staff-symbol-referencer.hh"
 #include "warn.hh"
-#include "musical-request.hh"
+#include "event.hh"
 
 /*
-  This class implements an engraver for custos symbols.
-*/
+ * This class implements an engraver for custos symbols.
+ *
+ * FIXME: note heads inside of ligatures (i.e. ligature heads) are
+ * sometimes not recognized by this engraver. --jr
+ */
 class Custos_engraver : public Engraver
 {
 public:
-  Custos_engraver();
-  virtual void do_post_move_processing();
-  virtual void acknowledge_element(Score_element_info);
-  virtual void do_process_music ();
-  virtual void process_acknowledged ();
-  virtual void do_pre_move_processing ();
-  virtual void do_removal_processing ();
-  VIRTUAL_COPY_CONS(Translator);
+TRANSLATOR_DECLARATIONS(  Custos_engraver);
+  virtual void start_translation_timestep ();
+  virtual void acknowledge_grob (Grob_info);
+  virtual void process_acknowledged_grobs ();
+  virtual void stop_translation_timestep ();
+  virtual void finalize ();
+
 
 private:
-  Item * create_custos();
+  Item * create_custos ();
   bool custos_permitted;
-  Link_array<Score_element> custos_arr_;
-  Array<Musical_pitch> pitches_;
+  Link_array<Grob> custodes_;
+  Array<Pitch> pitches_;
 };
 
 Custos_engraver::Custos_engraver ()
@@ -46,46 +46,39 @@ Custos_engraver::Custos_engraver ()
 
 
 void
-Custos_engraver::do_pre_move_processing()
+Custos_engraver::stop_translation_timestep ()
 {
   /*
     delay typeset until we're at the next moment, so we can silence custodes at the end of the piece.
    */
-}
-
-void
-Custos_engraver::do_post_move_processing ()
-{
-  for (int i = custos_arr_.size (); i--;)
+  for (int i = custodes_.size (); i--;)
     {
-      typeset_element (custos_arr_[i]);
+      typeset_grob (custodes_[i]);
     }
-  custos_arr_.clear ();
   pitches_.clear ();
 
   custos_permitted = false;
 }
 
-
-/*
-  TODO check if this works with forced bar lines?
- */
 void
-Custos_engraver::do_process_music ()
+Custos_engraver::start_translation_timestep ()
 {
-  if (gh_string_p (get_property( "whichBar")))
-    custos_permitted = true;
+  custodes_.clear ();
 }
 
+
 void
-Custos_engraver::acknowledge_element (Score_element_info info)
+Custos_engraver::acknowledge_grob (Grob_info info)
 {
-  Item *item = dynamic_cast <Item *>(info.elem_l_);
+  Item *item = dynamic_cast <Item *> (info.grob_);
   if (item)
     {
-      if (Bar::has_interface (info.elem_l_))
+      Music * m = info.music_cause();
+      if (Bar_line::has_interface (info.grob_))
        custos_permitted = true;
-      else if (Note_head::has_interface (info.elem_l_))
+      else if (Note_head::has_interface (info.grob_)
+              && m
+              && m->is_mus_type ("note-event"))
        {
 
          /*
@@ -96,24 +89,31 @@ Custos_engraver::acknowledge_element (Score_element_info info)
            don't look at the staff-position, since we can't be sure
            whether Clef_engraver already applied a vertical shift.
          */
-         Note_req * nr = dynamic_cast<Note_req*> (info.req_l_);
-         if (nr)
-           pitches_.push (*unsmob_pitch (nr->get_mus_property ("pitch")));
+           pitches_.push (*unsmob_pitch (m->get_mus_property ("pitch")));
        }
     }
 }
 
 void
-Custos_engraver::process_acknowledged ()
+Custos_engraver::process_acknowledged_grobs ()
 {
+  if (gh_string_p (get_property ("whichBar")))
+    custos_permitted = true;
+  
   if (custos_permitted)
     {
       for (int i = pitches_.size (); i--;)
        {
          Item *c = create_custos ();
+
+         int p = pitches_[i].steps ();
+         SCM c0 = get_property ("centralCPosition");
+         if (gh_number_p (c0))
+           p += gh_scm2int (c0);
+
          
-         c->set_elt_property ("staff-position",
-                              gh_int2scm (pitches_[i].steps ()));
+         c->set_grob_property ("staff-position",
+                               gh_int2scm (p));
          
        }
 
@@ -122,27 +122,33 @@ Custos_engraver::process_acknowledged ()
 }
 
 Item* 
-Custos_engraver::create_custos()
+Custos_engraver::create_custos ()
 {
-  SCM basicProperties = get_property ("Custos");
-  Item* custos = new Item (basicProperties);
+  Item* custos = make_item ("Custos");
   
-  announce_element (custos, 0);
-  custos_arr_.push (custos);
+  announce_grob(custos, SCM_EOL);
+  custodes_.push (custos);
   
   return custos;
 }
 
 void
-Custos_engraver::do_removal_processing ()
+Custos_engraver::finalize ()
 {
-  for (int i = custos_arr_.size (); i--;)
+  for (int i = custodes_.size (); i--;)
     {
-      custos_arr_[i]->suicide ();
-      typeset_element (custos_arr_[i]);
+      custodes_[i]->suicide ();
+      typeset_grob (custodes_[i]);
     }
-  custos_arr_.clear ();
+  custodes_.clear ();
 }
 
-ADD_THIS_TRANSLATOR (Custos_engraver);
 
+
+ENTER_DESCRIPTION(Custos_engraver,
+/* descr */       "",
+/* creats*/       "Custos",
+/* accepts */     "",
+/* acks  */      "bar-line-interface note-head-interface",
+/* reads */       "",
+/* write */       "");