/*
- output-property-engraver.cc -- implement Output_property_engraver
+ output-property-engraver.cc -- implement Output_property_engraver
source file of the GNU LilyPond music typesetter
- (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "grob.hh"
#include "context.hh"
+#include "translator.icc"
+
class Output_property_engraver : public Engraver
{
-TRANSLATOR_DECLARATIONS (Output_property_engraver);
+ TRANSLATOR_DECLARATIONS (Output_property_engraver);
protected:
Link_array<Music> props_;
+ DECLARE_ACKNOWLEDGER (grob)
- virtual void stop_translation_timestep ();
- virtual void acknowledge_grob (Grob_info);
+ void stop_translation_timestep ();
virtual bool try_music (Music*);
};
void
Output_property_engraver::acknowledge_grob (Grob_info inf)
{
- for (int i=props_.size (); i--;)
+ for (int i = props_.size (); i--;)
{
- Music * o = props_[i];
- SCM pred = o->get_property ("predicate");
-
-
-
- if (ly_c_procedure_p (pred))
- {
- /*
- should typecheck pred.
- */
- SCM result=scm_call_1 (pred, inf.grob_->self_scm ());
- if (to_boolean (result))
- {
- SCM sym = o->get_property ("grob-property");
- SCM val = o->get_property ("grob-value");
- inf.grob_->internal_set_property (sym, val);
- }
- }
- else
- {
- Context * d =
- dynamic_cast<Context *> (inf.origin_trans_);
-
- if (!d)
- d = dynamic_cast<Context *> (inf.origin_trans_->get_parent_context ());
-
- SCM proc = o->get_property ("procedure");
- scm_call_3 (proc,
- inf.grob_->self_scm (),
- d->self_scm (),
- get_parent_context ()->self_scm ());
- }
+ Music *o = props_[i];
+ Context *d = inf.context ();
+ SCM proc = o->get_property ("procedure");
+ scm_call_3 (proc,
+ inf.grob ()->self_scm (),
+ d->self_scm (),
+ context ()->self_scm ());
}
}
{
}
-ENTER_DESCRIPTION (Output_property_engraver,
-/* descr */ "Interpret Music of Output_property type, and apply a function "
-" to any Graphic objects that satisfies the predicate.",
-/* creats*/ "",
-/* accepts */ "layout-instruction",
-/* acks */ "grob-interface",
-/* reads */ "",
-/* write */ "");
+ADD_ACKNOWLEDGER (Output_property_engraver,grob);
+ADD_TRANSLATOR (Output_property_engraver,
+
+ /* doc */
+ "Apply a procedure to any grob acknowledged. ",
+
+ /* create */
+ "",
+
+ /* accept */
+ "layout-instruction",
+
+ /* read */
+ "",
+
+ /* write */
+ "");