release: 1.3.56

[lilypond.git] / lily / engraver.cc

diff --git a/lily/engraver.cc b/lily/engraver.cc
index 2ccf33506924ee75afc90f7ccff9c9f2ea6985e2..8ae01f77b6b0e53471d312ee3274665f9298907c 100644 (file)
--- a/lily/engraver.cc
+++ b/lily/engraver.cc
@@ -1,16 +1,19 @@
 /*
   engraver.cc -- implement Engraver
 
-  Sourcefile of GNU LilyPond musictypesetter
+  Sourcefile of GNU LilyPond music type setter
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "music-list.hh"
 #include "musical-request.hh"
 #include "engraver.hh"
-#include "engraver-group.hh"
+#include "engraver-group-engraver.hh"
 #include "debug.hh"
+#include "paper-def.hh"
+#include "score-element.hh"
+#include "group-interface.hh"
 
 void
 Engraver::fill_staff_info (Staff_info&)
@@ -18,25 +21,30 @@ Engraver::fill_staff_info (Staff_info&)
   
 }
 
-
 void
-Engraver::announce_element (Score_elem_info i)
+Engraver::announce_element (Score_element_info i)
 {
-  i.origin_grav_l_arr_.push (this);
+  Score_element *  e = i.elem_l_;
+
+  if (e->get_elt_property ("interfaces") == SCM_EOL)
+    Group_interface (e, "interfaces").add_thing (ly_symbol2scm (e->name()));
+  
+  if (!i.origin_trans_l_)
+    i.origin_trans_l_ = this;
   daddy_grav_l()->announce_element (i);
 }
 
-
 void
-Engraver::typeset_element (Score_elem*p)
+Engraver::typeset_element (Score_element*p)
 {
   daddy_grav_l()->typeset_element (p);
 }
 
+
 Paper_def*
-Engraver::paper() const
+Engraver::paper_l () const
 {
-  return (Paper_def*)output_def_l_;
+  return dynamic_cast<Paper_def*>(output_def_l_);
 }
 
 
@@ -50,13 +58,13 @@ Engraver::get_staff_info() const
 }
 
 
-IMPLEMENT_IS_TYPE_B1(Engraver, Translator);
+
 
 
 Engraver_group_engraver*
 Engraver::daddy_grav_l () const
 {
   return (daddy_trans_l_ )
-       ? (Engraver_group_engraver*) daddy_trans_l_->engraver_l ()
+       ? dynamic_cast<Engraver_group_engraver *> (daddy_trans_l_)
        : 0;
 }