source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2002 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 ()->internal_set_property (sym, val);
+ }
+ Simple_music_iterator::process (m);
}
+void
+Property_unset_iterator::process (Moment m)
+{
+ SCM sym = music_l ()->get_mus_property ("symbol");
+ if (gh_symbol_p (sym))
+ {
+ report_to_l ()->unset_property (sym);
+ }
+ 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);
+IMPLEMENT_CTOR_CALLBACK (Property_unset_iterator);