X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcustos-engraver.cc;h=8b5eb08ef816afb86b1469f6254b71578ef4e3f0;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=0763cd7431205f52277b2e2fbaede9afa2c5413c;hpb=94375d04f45b415ad705fd444fdb344416f116d9;p=lilypond.git

diff --git a/lily/custos-engraver.cc b/lily/custos-engraver.cc
index 0763cd7431..8b5eb08ef8 100644
--- a/lily/custos-engraver.cc
+++ b/lily/custos-engraver.cc
@@ -3,150 +3,149 @@
 
   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--2008 Juergen Reuter <reuter@ipd.uka.de>,
+  Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "engraver.hh"
-#include "bar.hh"
+#include "bar-line.hh"
 #include "item.hh"
 #include "note-head.hh"
+#include "pitch.hh"
 #include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
 #include "warn.hh"
-#include "musical-request.hh"
+
+#include "translator.icc"
 
 /*
-  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:
-TRANSLATOR_DECLARATIONS(  Custos_engraver);
-  virtual void start_translation_timestep ();
-  virtual void acknowledge_grob (Grob_info);
-  virtual void create_grobs ();
-  virtual void stop_translation_timestep ();
+  TRANSLATOR_DECLARATIONS (Custos_engraver);
+  void start_translation_timestep ();
+  DECLARE_ACKNOWLEDGER (bar);
+  DECLARE_ACKNOWLEDGER (note_head);
+  void process_acknowledged ();
+  void stop_translation_timestep ();
   virtual void finalize ();
 
-
 private:
-  Item * create_custos ();
-  bool custos_permitted;
-  Link_array<Grob> custos_arr_;
-  Array<Pitch> pitches_;
+  Item *create_custos ();
+  bool custos_permitted_;
+  vector<Grob*> custodes_;
+  vector<Pitch> pitches_;
 };
 
 Custos_engraver::Custos_engraver ()
 {
-  custos_permitted = false;
+  custos_permitted_ = false;
 }
 
-
 void
 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.
-   */
+  */
+  pitches_.clear ();
+
+  custos_permitted_ = false;
 }
 
 void
 Custos_engraver::start_translation_timestep ()
 {
-  for (int i = custos_arr_.size (); i--;)
-    {
-      typeset_grob (custos_arr_[i]);
-    }
-  custos_arr_.clear ();
-  pitches_.clear ();
-
-  custos_permitted = false;
+  custodes_.clear ();
 }
 
+void
+Custos_engraver::acknowledge_bar (Grob_info info)
+{
+  (void) info;
+  custos_permitted_ = true;
+}
 
 void
-Custos_engraver::acknowledge_grob (Grob_info info)
+Custos_engraver::acknowledge_note_head (Grob_info info)
 {
-  Item *item = dynamic_cast <Item *> (info.grob_l_);
-  if (item)
+  Stream_event *ev = info.event_cause ();
+  if (ev && ev->in_event_class ("note-event"))
     {
-      if (Bar::has_interface (info.grob_l_))
-	custos_permitted = true;
-      else if (Note_head::has_interface (info.grob_l_))
-	{
 
-	  /*
-	    ideally, we'd do custos->set_parent (Y_AXIS, notehead),
-	    but since the note head lives on the other system, we can't
-
-	    So we copy the position from the note head pitch.  We
-	    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")));
-	}
+      /*
+	ideally, we'd do custos->set_parent (Y_AXIS, notehead),
+	but since the note head lives on the other system, we can't
+
+	So we copy the position from the note head pitch.  We
+	don't look at the staff-position, since we can't be sure
+	whether Clef_engraver already applied a vertical shift.
+      */
+      pitches_.push_back (*unsmob_pitch (ev->get_property ("pitch")));
     }
 }
 
 void
-Custos_engraver::create_grobs ()
+Custos_engraver::process_acknowledged ()
 {
-  if (gh_string_p (get_property ("whichBar")))
-    custos_permitted = true;
-  
-  if (custos_permitted)
+  if (scm_is_string (get_property ("whichBar")))
+    custos_permitted_ = true;
+
+  if (custos_permitted_)
     {
-      for (int i = pitches_.size (); i--;)
+      for (vsize 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_grob_property ("staff-position",
-				gh_int2scm (p));
-	  
+	  SCM c0 = get_property ("middleCPosition");
+	  if (scm_is_number (c0))
+	    p += scm_to_int (c0);
+
+	  c->set_property ("staff-position",
+			   scm_from_int (p));
 	}
 
       pitches_.clear ();
     }
 }
 
-Item* 
+Item *
 Custos_engraver::create_custos ()
 {
-  SCM basicProperties = get_property ("Custos");
-  Item* custos = new Item (basicProperties);
-  
-  announce_grob (custos, 0);
-  custos_arr_.push (custos);
-  
+  Item *custos = make_item ("Custos", SCM_EOL);
+
+  custodes_.push_back (custos);
+
   return custos;
 }
 
 void
 Custos_engraver::finalize ()
 {
-  for (int i = custos_arr_.size (); i--;)
-    {
-      custos_arr_[i]->suicide ();
-      typeset_grob (custos_arr_[i]);
-    }
-  custos_arr_.clear ();
+  for (vsize i = custodes_.size (); i--;)
+    custodes_[i]->suicide ();
+  custodes_.clear ();
 }
 
+ADD_ACKNOWLEDGER (Custos_engraver, bar);
+ADD_ACKNOWLEDGER (Custos_engraver, note_head);
+
+ADD_TRANSLATOR (Custos_engraver,
+		/* doc */
+		"Engrave custodes.",
+
+		/* create */
+		"Custos ",
 
+		/* read */
+		"",
 
-ENTER_DESCRIPTION(Custos_engraver,
-/* descr */       "",
-/* creats*/       "Custos",
-/* acks  */       "bar-line-interface note-head-interface",
-/* reads */       "",
-/* write */       "");
+		/* write */
+		""
+		);