source file of the GNU LilyPond music typesetter
- (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
+ (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "staff-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
+#include "translator-group.hh"
#include "debug.hh"
#include "audio-column.hh"
#include "audio-item.hh"
#include "audio-staff.hh"
-IMPLEMENT_IS_TYPE_B1(Staff_performer,Performer_group_performer);
-ADD_THIS_PERFORMER(Staff_performer);
-Staff_performer::Staff_performer()
+ADD_THIS_TRANSLATOR (Staff_performer);
+
+Staff_performer::Staff_performer ()
{
- audio_staff_p_ = 0;
+ audio_staff_p_ = 0;
+ instrument_p_ = 0;
+ instrument_name_p_ = 0;
+ name_p_ = 0;
+ tempo_p_ = 0;
}
-Staff_performer::~Staff_performer()
+Staff_performer::~Staff_performer ()
{
- delete audio_staff_p_;
}
void
-Staff_performer::do_creation_processing()
+Staff_performer::do_creation_processing ()
{
- audio_staff_p_ = new Audio_staff;
+ audio_staff_p_ = new Audio_staff;
+ announce_element (Audio_element_info (audio_staff_p_, 0));
- if (instrument_str().length_i()) {
- // staff name
- play (new Audio_text ( Audio_text::TRACK_NAME, instrument_str ()));
- // instrument description
- play (new Audio_text (Audio_text::INSTRUMENT_NAME, instrument_str ()));
- }
+ name_p_ = new Audio_text (Audio_text::TRACK_NAME, id_str_);
+ announce_element (Audio_element_info (name_p_, 0));
- // tempo
- play(new Audio_tempo(get_tempo_i()));
+ tempo_p_ = new Audio_tempo (get_tempo_i ());
+ announce_element (Audio_element_info (tempo_p_, 0));
- if (instrument_str ().length_i ())
- // instrument
- play (new Audio_instrument (instrument_str ()));
+ Performer_group_performer::do_creation_processing ();
}
void
-Staff_performer::do_removal_processing()
+Staff_performer::do_process_requests ()
{
- Performer::play (audio_staff_p_);
- audio_staff_p_ = 0;
+ String str = new_instrument_str ();
+ if (str.length_i ())
+ {
+ instrument_name_p_ = new Audio_text (Audio_text::INSTRUMENT_NAME, str);
+ announce_element (Audio_element_info (instrument_name_p_, 0));
+ instrument_p_ = new Audio_instrument (str);
+ announce_element (Audio_element_info (instrument_p_, 0));
+ }
+ Performer_group_performer::do_process_requests ();
+}
+
+void
+Staff_performer::do_pre_move_processing ()
+{
+ if (name_p_)
+ {
+ play_element (name_p_);
+ name_p_ = 0;
+ }
+ if (tempo_p_)
+ {
+ play_element (tempo_p_);
+ tempo_p_ = 0;
+ }
+ if (instrument_name_p_)
+ {
+ play_element (instrument_name_p_);
+ instrument_name_p_ = 0;
+ }
+ if (instrument_p_)
+ {
+ play_element (instrument_p_);
+ instrument_p_ = 0;
+ }
+ Performer_group_performer::do_pre_move_processing ();
+}
+
+void
+Staff_performer::do_removal_processing ()
+{
+ Performer_group_performer::do_removal_processing ();
+ Performer::play_element (audio_staff_p_);
+ audio_staff_p_ = 0;
}
String
-Staff_performer::instrument_str()
+Staff_performer::new_instrument_str ()
{
- return Translator::id_str_;
+ // mustn't ask Score for instrument: it will return piano!
+ SCM minstr = get_property ("midiInstrument", 0);
+
+ if (!gh_string_p(minstr))
+ minstr = get_property ("instrument", 0);
+
+ if (ly_scm2string (minstr) == instrument_str_)
+ return "";
+
+ instrument_str_ = ly_scm2string (minstr);
+
+ return instrument_str_;
}
void
-Staff_performer::play (Audio_element* p)
+Staff_performer::play_element (Audio_element* p)
{
- if (p->is_type_b (Audio_item::static_name())) {
- audio_staff_p_->add ((Audio_item*)p);
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (p))
+ {
+ audio_staff_p_->add_audio_item (ai);
}
- Performer::play (p);
+ Performer::play_element (p);
}