/*
- change-iterator.cc -- implement Change_iterator
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.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 "change-iterator.hh"
-#include "translator-group.hh"
-#include "change-translator.hh"
-#include "debug.hh"
+#include "context.hh"
+#include "input.hh"
+#include "international.hh"
+#include "music.hh"
+#include "warn.hh"
void
-Change_iterator::error (String reason)
+Change_iterator::error (const string &reason)
{
- Change_translator const * t = dynamic_cast<Change_translator const*> (music_l_);
- String to_type = t->change_to_type_str_;
- String to_id = t->change_to_id_str_;
+ string to_type = ly_symbol2string (get_music ()->get_property ("change-to-type"));
+ string to_id = ly_scm2string (get_music ()->get_property ("change-to-id"));
+
+ string warn1 = _f ("cannot change `%s' to `%s'", to_type, to_id)
+ + ": " + reason;
- String warn1 = _f ("Can't change `%s' to `%s'", to_type, to_id)
- + ": " + reason;
/*
GUHG!
- */
- String warn2= "Change_iterator::do_process_and_next (): "
- + report_to_l ()->type_str_ + " = `"
- + report_to_l ()->id_str_ + "': ";
+ */
+ string warn2 = "Change_iterator::process (): "
+ + get_outlet ()->context_name () + " = `"
+ + get_outlet ()->id_string () + "': ";
warning (warn2);
- t->warning (warn1);
+ get_music ()->origin ()->warning (warn1);
}
/*
move to construct_children ?
- */
+*/
void
-Change_iterator::do_process_and_next (Moment m)
+Change_iterator::process (Moment m)
{
- Translator_group * current = report_to_l ();
- Translator_group * last = 0;
+ Context *current = get_outlet ();
+ Context *last = 0;
- Change_translator const * t = dynamic_cast<Change_translator const*> (music_l_);
- String to_type = t->change_to_type_str_;
- String to_id = t->change_to_id_str_;
+ SCM to_type = get_music ()->get_property ("change-to-type");
+ string to_id = ly_scm2string (get_music ()->get_property ("change-to-id"));
/* find the type of translator that we're changing.
-
- If \translator Staff = bass, then look for Staff = *
- */
- while (current && current->type_str_ != to_type)
+
+ If \translator Staff = bass, then look for Staff = *
+ */
+ while (current && !current->is_alias (to_type))
{
last = current;
- current = current->daddy_trans_l_;
+ current = current->get_parent_context ();
}
- if (current && current->id_str_ == to_id)
+ if (current && current->id_string () == to_id)
{
- String msg;
- msg += _ ("Can't switch translators, I'm there already");
+ string msg;
+ msg += _f ("cannot change, already in translator: %s", to_id);
}
-
- if (current)
+
+ if (current)
if (last)
{
- Translator_group * dest =
- report_to_l ()->find_create_translator_l (to_type, to_id);
- current->remove_translator_p (last);
- dest->add_translator (last);
+ Context *dest = 0;
+ Context *where = get_outlet ();
+ while (!dest && where)
+ {
+ dest = find_context_below (where, to_type, to_id);
+ where = where->get_parent_context ();
+ }
+
+ if (dest)
+ {
+ send_stream_event (last, "ChangeParent", get_music ()->origin (),
+ ly_symbol2scm ("context"), dest->self_scm ());
+ }
+ else
+ /* FIXME: constant error message. */
+ get_music ()->origin ()->warning (_ ("cannot find context to switch to"));
}
else
{
- /*
- We could change the current translator's id, but that would make
- errors hard to catch
-
- last->translator_id_str_ = change_l ()->change_to_id_str_;
- */
- error (_ ("I'm one myself"));
+ /* We could change the current translator's id, but that would make
+ errors hard to catch.
+
+ last->translator_id_string () = get_change
+ ()->change_to_id_string (); */
+ error (_f ("not changing to same context type: %s", ly_symbol2string (to_type).c_str ()));
}
else
+ /* FIXME: uncomprehensable message */
error (_ ("none of these in my family"));
- Music_iterator::do_process_and_next (m);
-}
+ Simple_music_iterator::process (m);
+}
+IMPLEMENT_CTOR_CALLBACK (Change_iterator);