* lily/context.cc (Context): take key argument in ctor.

[lilypond.git] / lily / global-context.cc

diff --git a/lily/global-context.cc b/lily/global-context.cc
index 7e91b89c36a5a3669236e76961bcafaab7b0f889..ce3f9e9ef5b4e2f9aa9fab2b44b2bdec3b72606c 100644 (file)
--- a/lily/global-context.cc
+++ b/lily/global-context.cc
@@ -15,16 +15,31 @@
 #include "global-context.hh"
 #include "score-context.hh"
 #include "context-def.hh"
-#include "music-output-def.hh"
+#include "output-def.hh"
+#include "lilypond-key.hh"
 
-Global_context::Global_context (Music_output_def*o)
+Global_context::Global_context (Output_def *o, Moment final)
+  : Context (new Lilypond_context_key(0,
+                                     Moment(0),
+                                     "Global", ""))
 {
+  scm_gc_unprotect_object (key_->self_scm());
+  
   output_def_ = o;
-  definition_ = o->find_context_def (ly_symbol2scm ("Global"));
-  unsmob_context_def (definition_)->apply_default_property_operations (this);
+  final_mom_ = final;
+  definition_ = find_context_def (o, ly_symbol2scm ("Global"));
+
+  Context_def *globaldef  =  unsmob_context_def (definition_);
+  if (!globaldef)
+    {
+      programming_error ("No `Global' context found.");
+    }
+  else
+    globaldef->apply_default_property_operations (this);
+  accepts_list_ = scm_list_1 (ly_symbol2scm ("Score"));
 }
 
-Music_output_def* 
+Output_def* 
 Global_context::get_output_def () const
 {
   return output_def_;
@@ -33,7 +48,7 @@ Global_context::get_output_def () const
 void
 Global_context::add_moment_to_process (Moment m)
 {
-  if (m  > final_mom_)
+  if (m > final_mom_)
     return;
 
   if (m < now_mom_)
@@ -78,8 +93,8 @@ Global_context::now_mom () const
 Score_context*
 Global_context::get_score_context () const
 {
-  return (gh_pair_p (context_list_))
-    ? dynamic_cast<Score_context*> (unsmob_context (gh_car (context_list_)))
+  return (scm_is_pair (context_list_))
+    ? dynamic_cast<Score_context*> (unsmob_context (scm_car (context_list_)))
     : 0;
 }
 
@@ -124,17 +139,16 @@ Global_context::run_iterator_on_me (Music_iterator * iter)
       if (w.main_part_.is_infinity ())
        break ;
       
-#if 0      
-      //      printf ("proccing %s\n ",       w.to_string ().to_str0 ());
       if (first)
-       {
+        {
          /*
-           Huh? 
+           Need this to get grace notes at start of a piece correct.
           */
-         set_property ("measurePosition", w.smobbed_copy ());
-       }
-#endif
-      
+          first = false;
+          set_property ("measurePosition", w.smobbed_copy ());
+        }
+
+
       prepare (w);
 
       if (iter->ok ())
@@ -142,20 +156,22 @@ Global_context::run_iterator_on_me (Music_iterator * iter)
 
       if (!get_score_context ()) 
        {
-         SCM key = ly_symbol2scm ("Score");
-         Context_def * t = unsmob_context_def (get_output_def ()
-                                               ->find_context_def (key));
+         SCM sym = ly_symbol2scm ("Score");
+         Context_def * t = unsmob_context_def (find_context_def (get_output_def (), sym));
          if (!t)
            error (_f ("can't find `%s' context", "Score"));
-         
-         add_context (t->instantiate (SCM_EOL));
 
-         Score_context *sc = dynamic_cast<Score_context*> (t);
+         Object_key *key = new Lilypond_context_key (get_key(), now_mom(),
+                                                     "Score", "");
+         Context *c = t->instantiate (SCM_EOL, key);
+         add_context (c);
+         scm_gc_unprotect_object (key->self_scm());
+
+         Score_context *sc = dynamic_cast<Score_context*> (c);
          sc->prepare (w);
        }
       
       one_time_step ();
-      first = false;      
     }
 }
 
@@ -163,21 +179,32 @@ void
 Global_context::apply_finalizations ()
 {
   SCM lst = get_property ("finalizations");
-  set_property ("finalizations" , SCM_EOL); 
-  for (SCM s = lst ; gh_pair_p (s); s = gh_cdr (s))
-    {
-      scm_primitive_eval (gh_car (s));
-    }
+  set_property ("finalizations", SCM_EOL);
+  for (SCM s = lst; scm_is_pair (s); s = scm_cdr (s))
+    /* TODO: make safe.  */
+    scm_primitive_eval (scm_car (s));
 }
 
-/*
-   Add a function to execute before stepping to the next time step.
- */
+/* Add a function to execute before stepping to the next time step.  */
 void
 Global_context::add_finalization (SCM x)
 {
   SCM lst = get_property ("finalizations");
   lst = scm_cons (x, lst);
-  set_property ("finalizations" ,lst); 
+  set_property ("finalizations", lst); 
+}
+
+Moment
+Global_context::previous_moment () const
+{
+  return prev_mom_;
 }
 
+Context *
+Global_context::get_default_interpreter ()
+{
+  if (get_score_context ())
+    return get_score_context ()->get_default_interpreter ();
+  else
+    return Context::get_default_interpreter ();
+}