source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "property-iterator.hh"
-#include "translation-property.hh"
-#include "translator-def.hh"
+#include "music.hh"
+#include "context-def.hh"
#include "translator-group.hh"
+#include "global-translator.hh"
+
+
+bool check_grob(Music *mus, SCM sym);
/**
- There is no real processing to a property: just lookup the
- translation unit, and set the property.
- */
+ There is no real processing to a property: just lookup the
+ translation unit, and set the property.
+*/
void
Property_iterator::process (Moment m)
{
- SCM sym = music_l_->get_mus_property ("symbol");
- if (gh_symbol_p(sym))
- report_to_l ()->set_property (sym, music_l_->get_mus_property ("value"));
+ SCM sym = get_music ()->get_mus_property ("symbol");
+ if (gh_symbol_p (sym))
+ {
+ SCM val = get_music ()->get_mus_property ("value");
+ bool ok= true;
+ if (val != SCM_EOL)
+ ok = type_check_assignment (sym, val, ly_symbol2scm ("translation-type?"));
+ if (ok)
+ get_outlet ()->internal_set_property (sym, val);
+ }
Simple_music_iterator::process (m);
}
void
-Push_property_iterator::process (Moment m)
+Property_unset_iterator::process (Moment m)
+{
+ SCM sym = get_music ()->get_mus_property ("symbol");
+ type_check_assignment (sym, SCM_EOL, ly_symbol2scm ("translation-type?"));
+ get_outlet ()->unset_property (sym);
+
+ Simple_music_iterator::process (m);
+}
+
+MAKE_SCHEME_CALLBACK(Property_iterator,once_finalization, 2);
+SCM
+Property_iterator::once_finalization(SCM translator, SCM music )
+{
+ Music * m = unsmob_music (music);
+ Translator_group * tg
+ = dynamic_cast<Translator_group*> (unsmob_translator (translator));
+ SCM sym = m->get_mus_property ("symbol");
+
+ tg->unset_property (sym);
+ return SCM_UNSPECIFIED;
+}
+
+void
+Property_iterator::do_quit ()
{
- SCM syms = music_l_->get_mus_property ("symbols");
- SCM eprop = music_l_->get_mus_property ("element-property");
- SCM val = music_l_->get_mus_property ("element-value");
+ if (to_boolean (get_music ()->get_mus_property ("once")))
+ {
+ SCM trans = get_outlet ()->self_scm();
+ SCM music = get_music()->self_scm();
+
+ Global_translator * tg= get_outlet ()->top_translator ();
+
+ tg->add_finalization (scm_list_n (once_finalization_proc,
+ trans, music, SCM_UNDEFINED));
+ }
+}
- Translator_def::apply_pushpop_property (report_to_l (), syms, eprop, val);
+
+SCM list_p = 0;
+
+/*
+ This is a rather crude check: we merely check if the translator
+ property is a list.
+ */
+bool
+check_grob(Music *mus, SCM sym)
+{
+ if (!list_p)
+ {
+ list_p = gh_eval_str ("list?");
+ }
+
+ SCM type = scm_object_property (sym, ly_symbol2scm ("translation-type?"));
+ bool ok = type == list_p;
+
+ if (!ok)
+ {
+ mus->origin()->warning (_f("Not a grob name, `%s'." , ly_symbol2string (sym)));
+ }
+ return ok;
+}
+
+void
+Push_property_iterator::process (Moment m)
+{
+ SCM sym = get_music ()->get_mus_property ("symbol");
+ if (check_grob (get_music (), sym))
+ {
+ SCM eprop = get_music ()->get_mus_property ("grob-property");
+ SCM val = get_music ()->get_mus_property ("grob-value");
+
+ if (to_boolean (get_music ()->get_mus_property ("pop-first"))
+ && !to_boolean (get_music ()->get_mus_property ("once"))
+ )
+ get_outlet ()->execute_pushpop_property (sym, eprop, SCM_UNDEFINED);
+
+ get_outlet ()->execute_pushpop_property (sym, eprop, val);
+ }
Simple_music_iterator::process (m);
}
+MAKE_SCHEME_CALLBACK(Push_property_iterator,once_finalization, 2);
+SCM
+Push_property_iterator::once_finalization (SCM trans, SCM music)
+{
+ Music * mus = unsmob_music (music);
+ Translator_group * tg = dynamic_cast<Translator_group*> (unsmob_translator (trans));
+
+ SCM sym = mus->get_mus_property ("symbol");
+ if (check_grob (mus, sym))
+ {
+ SCM eprop = mus->get_mus_property ("grob-property");
+
+ tg->execute_pushpop_property (sym, eprop, SCM_UNDEFINED);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+void
+Push_property_iterator::do_quit ()
+{
+ if (to_boolean (get_music ()->get_mus_property ("once")))
+ {
+ SCM trans = get_outlet ()->self_scm();
+ SCM music = get_music ()->self_scm();
+
+ Global_translator * tg= get_outlet ()->top_translator ();
+ tg->add_finalization (scm_list_n (once_finalization_proc,
+ trans, music, SCM_UNDEFINED));
+ }
+}
+
void
Pop_property_iterator::process (Moment m)
{
- SCM syms = music_l_->get_mus_property ("symbols");
- SCM eprop = music_l_->get_mus_property ("element-property");
- Translator_def::apply_pushpop_property (report_to_l (), syms, eprop, SCM_UNDEFINED);
+ SCM sym = get_music ()->get_mus_property ("symbol");
+ if (check_grob (get_music (), sym))
+ {
+ SCM eprop = get_music ()->get_mus_property ("grob-property");
+ get_outlet ()->execute_pushpop_property (sym, 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);
+