-/*
- auto-change-iterator.cc -- implement Auto_change_iterator
+/*
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+ Copyright (C) 1999--2014 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 "context.hh"
-#include "event.hh"
-#include "music-wrapper-iterator.hh"
#include "direction.hh"
+#include "international.hh"
+#include "music.hh"
+#include "music-wrapper-iterator.hh"
class Auto_change_iterator : public Music_wrapper_iterator
{
public:
DECLARE_SCHEME_CALLBACK (constructor, ());
-
+
Auto_change_iterator ();
protected:
virtual void do_quit ();
virtual void construct_children ();
- virtual void process (Moment);
-
Array<Pitch> pending_pitch (Moment) const;
+ virtual void process (Moment);
+
vector<Pitch> pending_pitch (Moment) const;
private:
SCM split_list_;
Direction where_dir_;
- void change_to (Music_iterator* , SCM, String);
+ void change_to (Music_iterator *, SCM, const string&);
Moment start_moment_;
- Interpretation_context_handle up_;
- Interpretation_context_handle down_;
-
+ Context_handle up_;
+ Context_handle down_;
};
-
-
void
Auto_change_iterator::change_to (Music_iterator *it, SCM to_type_sym,
- String to_id)
+ const string &to_id)
{
- Context * current = it->get_outlet ();
- Context * last = 0;
+ Context *current = it->get_outlet ();
+ Context *last = 0;
/*
Cut & Paste from Change_iterator (ugh).
- TODO: abstract this function
- */
-
+ TODO: abstract this function
+ */
+
/* find the type of translator that we're changing.
-
- If \translator Staff = bass, then look for Staff = *
- */
+
+ If \translator Staff = bass, then look for Staff = *
+ */
while (current && !current->is_alias (to_type_sym))
{
last = current;
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 (last)
- {
- Context * dest =
- it->get_outlet ()->find_create_context (to_type_sym, to_id, SCM_EOL);
- current->remove_context (last);
- dest->add_context (last);
- }
- else
- {
- /*
- We could change the current translator's id, but that would make
- errors hard to catch
-
- */
- }
- else
- ;
+ if (current)
+ {
+ if (last)
+ {
+ Context *dest
+ = it->get_outlet ()->find_create_context (to_type_sym, to_id, SCM_EOL);
+
+ send_stream_event (last, "ChangeParent", get_music ()->origin (),
+ ly_symbol2scm ("context"), dest->self_scm ());
+ }
+ else
+ {
+ /*
+ We could change the current translator's id, but that would make
+ errors hard to catch
+
+ */
+ ;
+ }
+ }
}
void
Auto_change_iterator::process (Moment m)
{
Music_wrapper_iterator::process (m);
-
+
Moment now = get_outlet ()->now_mom ();
Moment *splitm = 0;
-
+ if (start_moment_.main_part_.is_infinity () && start_moment_ < 0)
+ start_moment_ = now;
+
for (; scm_is_pair (split_list_); split_list_ = scm_cdr (split_list_))
{
- splitm = unsmob_moment (scm_caar (split_list_));
+ splitm = Moment::unsmob (scm_caar (split_list_));
if ((*splitm + start_moment_) > now)
- break ;
+ break;
SCM tag = scm_cdar (split_list_);
- Direction d = to_dir (tag);
-
+ Direction d = to_dir (tag);
+
if (d && d != where_dir_)
- {
- where_dir_ = d;
- String to_id = (d >= 0) ? "up" : "down";
- change_to (child_iter_,
- ly_symbol2scm ("Staff"),
- to_id);
- }
+ {
+ where_dir_ = d;
+ string to_id = (d >= 0) ? "up" : "down";
+ change_to (child_iter_,
+ ly_symbol2scm ("Staff"),
+ to_id);
+ }
}
}
void
Auto_change_iterator::construct_children ()
{
- split_list_ = get_music ()->get_property ("split-list");
+ split_list_ = get_music ()->get_property ("split-list");
start_moment_ = get_outlet ()->now_mom ();
- SCM props = get_outlet()->get_property ("trebleStaffProperties");
- Context *up = get_outlet()->find_create_context (ly_symbol2scm ("Staff"),
- "up", props);
+ SCM props = get_outlet ()->get_property ("trebleStaffProperties");
+ Context *up = get_outlet ()->find_create_context (ly_symbol2scm ("Staff"),
+ "up", props);
+
+ props = get_outlet ()->get_property ("bassStaffProperties");
+ Context *down = get_outlet ()->find_create_context (ly_symbol2scm ("Staff"),
+ "down", props);
- props = get_outlet()->get_property ("bassStaffProperties");
- Context *down = get_outlet()->find_create_context (ly_symbol2scm ("Staff"),
- "down", props);
-
up_.set_context (up);
down_.set_context (down);
Context *voice = up->find_create_context (ly_symbol2scm ("Voice"),
- "", SCM_EOL);
+ "", SCM_EOL);
set_context (voice);
Music_wrapper_iterator::construct_children ();
-
}
void
-Auto_change_iterator::do_quit()
+Auto_change_iterator::do_quit ()
{
up_.set_context (0);
down_.set_context (0);
-
}
+
IMPLEMENT_CTOR_CALLBACK (Auto_change_iterator);
projects / lilypond.git / blobdiff