source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "change-iterator.hh"
-#include "translator-group.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 (string reason)
{
- String to_type = ly_scm2string (get_music ()->get_mus_property ("change-to-type"));
- String to_id = ly_scm2string (get_music ()->get_mus_property ("change-to-id"));
+ 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)
+ string warn1 = _f ("can't change `%s' to `%s'", to_type, to_id)
+ ": " + reason;
+
/*
GUHG!
- */
- String warn2= "Change_iterator::process (): "
- + report_to ()->type_string_ + " = `"
- + report_to ()->id_string_ + "': ";
+ */
+ string warn2= "Change_iterator::process (): "
+ + get_outlet ()->context_name () + " = `"
+ + get_outlet ()->id_string () + "': ";
warning (warn2);
get_music ()->origin ()->warning (warn1);
}
/*
move to construct_children ?
- */
+*/
void
Change_iterator::process (Moment m)
{
- Translator_group * current = report_to ();
- Translator_group * last = 0;
-
- String to_type = ly_scm2string (get_music ()->get_mus_property ("change-to-type"));
- String to_id = ly_scm2string (get_music ()->get_mus_property ("change-to-id"));
+ Context *current = get_outlet ();
+ Context *last = 0;
+ 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_string_ != to_type)
+
+ If \translator Staff = bass, then look for Staff = *
+ */
+ while (current && !current->is_alias (to_type))
{
last = current;
- current = current->daddy_trans_;
+ current = current->get_parent_context ();
}
- if (current && current->id_string_ == to_id)
+ if (current && current->id_string () == to_id)
{
- String msg;
- msg += _ ("Can't switch translators, I'm there already");
+ string msg;
+ msg += _f ("can't change, already in translator: %s", to_id);
}
-
- if (current)
+
+ if (current)
if (last)
{
- Translator_group * dest =
- report_to ()->find_create_translator (to_type, to_id);
- current->remove_translator (last);
- dest->add_used_group_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 (_ ("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_string_ = get_change ()->change_to_id_string_;
- */
- 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"));
+
Simple_music_iterator::process (m);
}
-
-
IMPLEMENT_CTOR_CALLBACK (Change_iterator);