release: 1.3.127

[lilypond.git] / lily / property-iterator.cc

diff --git a/lily/property-iterator.cc b/lily/property-iterator.cc
index 2037955b83d85341edac74f6a5525dd4f0083eac..bb7a40395fe77b6c07645e97f854dbb611eaf919 100644 (file)
--- a/lily/property-iterator.cc
+++ b/lily/property-iterator.cc
@@ -3,25 +3,60 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "property-iterator.hh"
-#include "translation-property.hh"
+#include "music.hh"
+#include "translator-def.hh"
 #include "translator-group.hh"
 
+/**
+  There is no real processing to a property: just lookup the
+  translation unit, and set the property.
+  */
 void
-Property_iterator::do_process_and_next (Moment m)
+Property_iterator::process (Moment m)
 {
-  if (property_l()->var_str_.length_i ())
-    report_to_l ()->set_property (property_l()->var_str_, property_l()->value_);
-  Music_iterator::do_process_and_next (m);
+  SCM sym = music_l_->get_mus_property ("symbol");
+  if (gh_symbol_p(sym))
+    {
+      SCM val = music_l_->get_mus_property ("value");
+      bool ok= true;
+      if (val != SCM_EOL)
+       ok = type_check_assignment (val, sym, ly_symbol2scm ("translation-type?"));
+      if (ok)
+       report_to_l ()->set_property (sym, val);
+    }
+  Simple_music_iterator::process (m);
 }
 
+void
+Push_property_iterator::process (Moment m)
+{
+  SCM syms = music_l_->get_mus_property ("symbols");
+  SCM eprop = music_l_->get_mus_property ("grob-property");
+  SCM val = music_l_->get_mus_property ("grob-value");
+
+  if (to_boolean (music_l_->get_mus_property ( "pop-first")))
+    Translator_def::apply_pushpop_property (report_to_l (),
+                                           syms, eprop, SCM_UNDEFINED);
 
+  Translator_def::apply_pushpop_property (report_to_l (), syms, eprop, val);
+  
+  Simple_music_iterator::process (m);
+}
 
-Translation_property*
-Property_iterator::property_l () const
+void
+Pop_property_iterator::process (Moment m)
 {
-  return (Translation_property*) music_l_;
+  SCM syms = music_l_->get_mus_property ("symbols");
+  SCM eprop = music_l_->get_mus_property ("grob-property");
+  Translator_def::apply_pushpop_property (report_to_l (), syms, eprop, SCM_UNDEFINED);
+  
+  Simple_music_iterator::process (m);
 }
+
+IMPLEMENT_CTOR_CALLBACK(Pop_property_iterator);
+IMPLEMENT_CTOR_CALLBACK(Push_property_iterator);
+IMPLEMENT_CTOR_CALLBACK(Property_iterator);