(get_indexed_char): scale metrics by

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

diff --git a/lily/repeat-acknowledge-engraver.cc b/lily/repeat-acknowledge-engraver.cc
index e3f544d0f6fad4d0f65f5089e0558244883d4c68..f6316e76a69614506270ed214cd9bc0676072aec 100644 (file)
--- a/lily/repeat-acknowledge-engraver.cc
+++ b/lily/repeat-acknowledge-engraver.cc
@@ -3,14 +3,15 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000 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"
 
-
 /*
   Objective:
 
@@ -25,42 +26,43 @@
 class Repeat_acknowledge_engraver : public Engraver
 {
 public:
-  VIRTUAL_COPY_CONS (Translator);
-  Repeat_acknowledge_engraver();
   
-  virtual void do_post_move_processing ();
-  void deprecated_process_music ();
-  virtual void do_creation_processing ();
+  TRANSLATOR_DECLARATIONS (Repeat_acknowledge_engraver);
+protected:
+  virtual void start_translation_timestep ();
+  virtual void process_music ();
+  virtual void initialize ();
+
 };
 
 void
-Repeat_acknowledge_engraver::do_creation_processing ()
+Repeat_acknowledge_engraver::initialize ()
 {
-  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::do_post_move_processing ()
+Repeat_acknowledge_engraver::start_translation_timestep ()
 {
-  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);
 }
 
 void
-Repeat_acknowledge_engraver::deprecated_process_music ()
+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");
@@ -69,19 +71,19 @@ Repeat_acknowledge_engraver::deprecated_process_music ()
   bool start = false;
   bool end = false;
   bool volta_found = false;
-  while (gh_pair_p (cs))
+  while (scm_is_pair (cs))
     {
-      SCM command = gh_car (cs);
+      SCM command = scm_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 (scm_is_pair (command) && scm_car (command) == ly_symbol2scm ("volta"))
        volta_found = true;
-      cs = gh_cdr (cs);      
+      cs = scm_cdr (cs);      
     }
 
-  if ( start && end )
+  if (start && end)
     s = ":|:";
   else if (start)
     s = "|:";
@@ -89,13 +91,29 @@ Repeat_acknowledge_engraver::deprecated_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 "".
    */
-  if (s != "" || (volta_found && !gh_string_p (get_property ("whichBar"))))
+
+  /*
+    We only set the barline if we wouldn't overwrite a previously set
+    barline.
+   */
+  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);
+ADD_TRANSLATOR (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 */       "");