* lily/include/lily-guile.hh: compatibility glue for 1.6

[lilypond.git] / lily / repeat-acknowledge-engraver.cc

diff --git a/lily/repeat-acknowledge-engraver.cc b/lily/repeat-acknowledge-engraver.cc
index bba68ba1ae4f058bd80a05d2c33d6d636b737f4e..b70abed2203cdaece9612363781e6f977d278565 100644 (file)
--- a/lily/repeat-acknowledge-engraver.cc
+++ b/lily/repeat-acknowledge-engraver.cc
@@ -3,11 +3,13 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
+
 #include "engraver.hh"
 #include "translator-group.hh"
+#include "context.hh"
 #include "repeated-music.hh"
 
 
@@ -25,35 +27,32 @@
 class Repeat_acknowledge_engraver : public Engraver
 {
 public:
-  VIRTUAL_COPY_CONS (Translator);
-  Repeat_acknowledge_engraver();
-
+  
+  TRANSLATOR_DECLARATIONS (Repeat_acknowledge_engraver);
+protected:
   virtual void start_translation_timestep ();
   virtual void process_music ();
   virtual void initialize ();
 
-  bool first_b_;
 };
 
 void
 Repeat_acknowledge_engraver::initialize ()
 {
-  first_b_ = true;
-  daddy_trans_l_->set_property ("repeatCommands", SCM_EOL);
+  context ()->set_property ("repeatCommands", SCM_EOL);
 }
 
 
-Repeat_acknowledge_engraver::Repeat_acknowledge_engraver()
+Repeat_acknowledge_engraver::Repeat_acknowledge_engraver ()
 {
 }
 
 void
 Repeat_acknowledge_engraver::start_translation_timestep ()
 {
-  first_b_ = true;
-  Translator_group * tr = daddy_trans_l_->where_defined (ly_symbol2scm ("repeatCommands"));
+  Context * tr = context ()->where_defined (ly_symbol2scm ("repeatCommands"));
   if (!tr)
-    tr = daddy_trans_l_;
+    tr = context ();
 
   tr->set_property ("repeatCommands", SCM_EOL);
 }
@@ -64,7 +63,7 @@ Repeat_acknowledge_engraver::process_music ()
   /*
     At the start of a piece, we don't print any repeat bars.
    */
-  if (now_mom () == Moment (0))
+  if (!now_mom ().main_part_)
     return ; 
   
   SCM cs = get_property ("repeatCommands");
@@ -73,19 +72,19 @@ Repeat_acknowledge_engraver::process_music ()
   bool start = false;
   bool end = false;
   bool volta_found = false;
-  while (gh_pair_p (cs))
+  while (ly_c_pair_p (cs))
     {
-      SCM command = gh_car (cs);
+      SCM command = ly_car (cs);
       if (command == ly_symbol2scm ("start-repeat"))
        start = true;
       else if (command == ly_symbol2scm ("end-repeat"))
        end = true;
-      else if (gh_pair_p (command) && gh_car (command) == ly_symbol2scm ("volta"))
+      else if (ly_c_pair_p (command) && ly_car (command) == ly_symbol2scm ("volta"))
        volta_found = true;
-      cs = gh_cdr (cs);      
+      cs = ly_cdr (cs);      
     }
 
-  if (start && end )
+  if (start && end)
     s = ":|:";
   else if (start)
     s = "|:";
@@ -93,12 +92,29 @@ Repeat_acknowledge_engraver::process_music ()
     s = ":|";
 
   /*
-    TODO: line breaks might be allowed if we set whichBar to "". 
+    TODO: line breaks might be allowed if we set whichBar to "".
+   */
+
+  /*
+    We only set the barline if we wouldn't overwrite a previously set
+    barline.
    */
-  if (s != "" || (volta_found && !gh_string_p (get_property ("whichBar"))))
+  SCM wb = get_property ("whichBar");
+  SCM db  = get_property ("defaultBarType");
+  if (!scm_is_string (wb) || ly_c_equal_p (db, wb))
     {
-      daddy_trans_l_->set_property ("whichBar", ly_str02scm(s.ch_C()));
+      if (s != "" || (volta_found && !scm_is_string (wb)))
+       {
+         context ()->set_property ("whichBar", scm_makfrom0str (s.to_str0 ()));
+       }
     }
 }
 
-ADD_THIS_TRANSLATOR(Repeat_acknowledge_engraver);
+ENTER_DESCRIPTION (Repeat_acknowledge_engraver,
+/* descr */       "Acknowledge repeated music, and convert the contents of "
+"repeatCommands ainto an appropriate setting for whichBar.",
+/* creats*/       "",
+/* accepts */     "",
+/* acks  */      "",
+/* reads */       "repeatCommands whichBar",
+/* write */       "");