-/*
- output-property-engraver.cc -- implement Output_property_engraver
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2000--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
- */
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2000--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "engraver.hh"
#include "context.hh"
protected:
vector<Stream_event*> props_;
- DECLARE_ACKNOWLEDGER (grob);
- DECLARE_TRANSLATOR_LISTENER (apply_output);
+ void acknowledge_grob (Grob_info);
+ void listen_apply_output (Stream_event *);
void stop_translation_timestep ();
};
-IMPLEMENT_TRANSLATOR_LISTENER (Output_property_engraver, apply_output);
+// We only run this in the Score context, so all events are likely to
+// find a target
void
Output_property_engraver::listen_apply_output (Stream_event *ev)
{
- /*
- UGH. Only swallow the output property event in the context
- it was intended for. This is inelegant but not inefficient.
- */
- if (context ()->is_alias (ev->get_property ("context-type")))
- props_.push_back (ev);
+ props_.push_back (ev);
}
void
{
Stream_event *o = props_[i];
Context *d = inf.context ();
+ SCM grob = o->get_property ("symbol");
+ if (scm_is_symbol (grob)
+ && ly_symbol2string (grob) != inf.grob ()->name ())
+ continue;
+ SCM typ = o->get_property ("context-type");
SCM proc = o->get_property ("procedure");
- scm_call_3 (proc,
- inf.grob ()->self_scm (),
- d->self_scm (),
- context ()->self_scm ());
+ for (Context *c = d; c; c = c->get_parent_context ())
+ {
+ if (c->is_alias (typ))
+ scm_call_3 (proc,
+ inf.grob ()->self_scm (),
+ d->self_scm (),
+ c->self_scm ());
+ }
}
}
props_.clear ();
}
-Output_property_engraver::Output_property_engraver ()
+Output_property_engraver::Output_property_engraver (Context *c)
+ : Engraver (c)
+{
+}
+
+void
+Output_property_engraver::boot ()
{
+ ADD_LISTENER (Output_property_engraver, apply_output);
+ ADD_ACKNOWLEDGER (Output_property_engraver, grob);
}
-ADD_ACKNOWLEDGER (Output_property_engraver, grob);
ADD_TRANSLATOR (Output_property_engraver,
/* doc */
"Apply a procedure to any grob acknowledged.",