source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "change-iterator.hh"
-#include "translator-group.hh"
-#include "change-translator.hh"
-#include "debug.hh"
-Change_iterator::Change_iterator (Change_translator *change_l)
-{
- change_l_ = change_l;
-}
+#include "context.hh"
+#include "input.hh"
+#include "international.hh"
+#include "music.hh"
+#include "warn.hh"
void
-Change_iterator::error (String reason)
+Change_iterator::error (string reason)
{
- String to_type = change_l_->change_to_type_str_;
- String to_id = change_l_->change_to_id_str_;
-
- String warn1 =
- _ ("Can't change ") + to_type
- + _(" to ") + "`" + to_id + "\': " + reason;
- String warn2= "Change_iterator::process_and_next (): " + report_to_l ()->type_str_ + " = `"
- + report_to_l ()->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 ("can't change `%s' to `%s'", to_type, to_id)
+ + ": " + reason;
+
+ /*
+ GUHG!
+ */
+ string warn2= "Change_iterator::process (): "
+ + get_outlet ()->context_name () + " = `"
+ + get_outlet ()->id_string () + "': ";
warning (warn2);
- change_l_->warning (warn1);
+ get_music ()->origin ()->warning (warn1);
}
/*
move to construct_children ?
- */
+*/
void
-Change_iterator::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;
- String to_type = change_l_->change_to_type_str_;
- String to_id = change_l_->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)
+
+ if (current && current->id_string () == to_id)
+ {
+ string msg;
+ msg += _f ("can't change, already in translator: %s", to_id);
+ }
+
+ 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 (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 (_ ("can't 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
- error ("None of these in my family.");
- Music_iterator::process_and_next (m);
+ /* FIXME: uncomprehensable message */
+ error (_ ("none of these in my family"));
+
+ Simple_music_iterator::process (m);
}
-IMPLEMENT_IS_TYPE_B1 (Change_iterator, Music_iterator);
+IMPLEMENT_CTOR_CALLBACK (Change_iterator);