-/*
+/*
auto-change-iterator.cc -- implement Auto_change_iterator
source file of the GNU LilyPond music typesetter
-
+
(c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+*/
#include "context.hh"
#include "event.hh"
{
public:
DECLARE_SCHEME_CALLBACK (constructor, ());
-
+
Auto_change_iterator ();
protected:
virtual void do_quit ();
virtual void construct_children ();
- virtual void process (Moment);
+ virtual void process (Moment);
Array<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, String);
Moment start_moment_;
Interpretation_context_handle up_;
};
-
-
void
Auto_change_iterator::change_to (Music_iterator *it, SCM to_type_sym,
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;
String msg;
msg += _ ("Can't switch translators, I'm there already");
}
-
- if (current)
+
+ if (current)
if (last)
{
- Context * dest =
- it->get_outlet ()->find_create_context (to_type_sym, to_id, SCM_EOL);
+ 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
+ We could change the current translator's id, but that would make
errors hard to catch
-
+
*/
}
- else
- ;
+ else;
}
Auto_change_iterator::process (Moment m)
{
Music_wrapper_iterator::process (m);
-
+
Moment now = get_outlet ()->now_mom ();
Moment *splitm = 0;
-
+
for (; scm_is_pair (split_list_); split_list_ = scm_cdr (split_list_))
{
splitm = unsmob_moment (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";
+ 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);