release commit

[lilypond.git] / lily / engraver.cc

diff --git a/lily/engraver.cc b/lily/engraver.cc
index 11ac18d61e62230e57f1842ca16a6e0df1a428ec..044908680ce58da9a0c7cc65d7ecba694cb1b237 100644 (file)
--- a/lily/engraver.cc
+++ b/lily/engraver.cc
@@ -1,142 +1,86 @@
 /*
   engraver.cc -- implement Engraver
 
-  Sourcefile of GNU LilyPond musictypesetter
+  Sourcefile of GNU LilyPond music type setter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
-#include "music-list.hh"
-#include "musical-request.hh"
+#include "music.hh"
 #include "engraver.hh"
-#include "engraver-group.hh"
-#include "debug.hh"
+#include "engraver-group-engraver.hh"
+#include "grob.hh"
+#include "score-engraver.hh"
+#include "warn.hh"
+#include "spanner.hh"
+#include "item.hh"
+#include "context.hh"
+#include "score-context.hh"
 
-void
-Engraver::post_move_processing()
+Engraver_group_engraver*
+Engraver::get_daddy_engraver () const
 {
-  if (status < CREATION_INITED) 
-    {
-       do_creation_processing();
-       status = CREATION_INITED;
-    }
-  if (status >= MOVE_INITED)
-       return;
-
-  do_post_move_processing();
-  status = MOVE_INITED;
+  return dynamic_cast<Engraver_group_engraver*> (get_daddy_translator ());
 }
 
 void
-Engraver::removal_processing()
-{
-  if (status < CREATION_INITED)
-       do_creation_processing();
-  
-  do_removal_processing();
-}
-
-bool
-Engraver::try_request (Request * r)
+Engraver::announce_grob (Grob_info inf)
 {
-  if (status < MOVE_INITED)
-       post_move_processing();
-
-  return do_try_request (r);
+  get_daddy_engraver ()->announce_grob (inf);
 }
 
-void
-Engraver::process_requests()
-{
-  if (status < PROCESSED_REQS)
-       post_move_processing();
-  else if (status >= PROCESSED_REQS)
-       return; 
-  
-  status = PROCESSED_REQS;
-  do_process_requests();
-}
 
+/*
+  CAUSE is the object (typically a Music object)  that
+  was the reason for making E.
+ */
 void
-Engraver::pre_move_processing()
+Engraver::announce_grob (Grob* e, SCM cause)
 {
-  do_pre_move_processing();
-  status = CREATION_INITED;
-}
+  /*
+    TODO: junk grob-info, and make a cause grob-property to store
+    `causes' generically.
+  */
+  if (unsmob_music (cause) || unsmob_grob (cause))
+    e->set_property ("cause", cause);
 
-void
-Engraver::fill_staff_info (Staff_info&)
-{
-  
-}
+  Grob_info i;
+  i.grob_ = e;
+  if (!i.origin_trans_)
+    i.origin_trans_ = this;
 
-Scalar
-Engraver::get_feature (String t)
-{
-  return daddy_grav_l_->get_feature (t);
+  Engraver * g = get_daddy_engraver ();
+  if (g)
+    g->announce_grob (i);
 }
 
-bool
-Engraver::do_try_request (Request*)
-{
-  return false;
-}
-
-Engraver::Engraver()
-{
-  status = VIRGIN;
-  daddy_grav_l_ = 0;
-}
 
+ 
 void
-Engraver::announce_element (Score_elem_info i)
+Engraver::typeset_grob (Grob*p)
 {
-  i.origin_grav_l_arr_.push (this);
-  daddy_grav_l_->announce_element (i);
+  Engraver *dad = get_daddy_engraver ();
+  if (dad)
+    dad->typeset_grob (p);
 }
 
-void
-Engraver::typeset_element (Score_elem*p)
-{
-  daddy_grav_l_->typeset_element (p);
-}
 
-Paper_def*
-Engraver::paper() const
-{
-  return daddy_grav_l_->paper();
-}
 
-bool
-Engraver::contains_b (Engraver *grav_l) const
+Engraver::Engraver ()
 {
-  return this == grav_l;
 }
 
-Staff_info
-Engraver::get_staff_info() const
-{
-  if (daddy_grav_l_)
-    return daddy_grav_l_->get_staff_info();
-  Staff_info info;
-  return info;
-}
 
-void
-Engraver::print() const
+Score_engraver* 
+Engraver::get_score_engraver () const
 {
-#ifndef NPRINT
-  DOUT << "\n" << name() << " {";
-  do_print();
-  DOUT << "}";
-#endif
+  SCM t = get_score_context ()->implementation_;
+  return dynamic_cast<Score_engraver*> (unsmob_translator (t));
 }
 
 
-IMPLEMENT_IS_TYPE_B(Engraver);
-
-void
-Engraver::do_print() const
-{
-}
+ENTER_DESCRIPTION (Engraver,
+                  "", "",
+                 "",
+                 "", "", "");