source file of the GNU LilyPond music typesetter
- (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ (c) 1997--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-
-#include "staff-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "debug.hh"
-#include "midi-def.hh"
+#include "warn.hh"
#include "audio-column.hh"
#include "audio-item.hh"
-#include "midi-item.hh"
-#include "midi-stream.hh"
-#include "string.hh"
-#include "string-convert.hh"
-
-
-IMPLEMENT_IS_TYPE_B1(Staff_performer,Performer_group_performer);
-ADD_THIS_PERFORMER(Staff_performer);
-
-Staff_performer::Staff_performer()
+#include "audio-staff.hh"
+#include "performer-group.hh"
+#include "context.hh"
+
+/** Perform a staff. Individual notes should have their instrument
+ (staff-wide) set, so we override play_element ()
+*/
+class Staff_performer : public Performer
{
- midi_track_p_ = new Midi_track;
+public:
+ TRANSLATOR_DECLARATIONS (Staff_performer);
+ ~Staff_performer ();
+
+ string new_instrument_string ();
+ string instrument_string_;
+
+protected:
+ virtual void acknowledge_audio_element (Audio_element_info info);
+ virtual void finalize ();
+ virtual void initialize ();
+ void process_music ();
+ void stop_translation_timestep ();
+
+private:
+ Audio_staff *audio_staff_;
+ Audio_instrument *instrument_;
+ Audio_text *instrument_name_;
+ Audio_text *name_;
+ Audio_tempo *tempo_;
+};
+
+#include "translator.icc"
+
+ADD_TRANSLATOR (Staff_performer, "", "",
+ "", "");
+
+Staff_performer::Staff_performer ()
+{
+ audio_staff_ = 0;
+ instrument_ = 0;
+ instrument_name_ = 0;
+ name_ = 0;
+ tempo_ = 0;
}
-Staff_performer::~Staff_performer()
+Staff_performer::~Staff_performer ()
{
- delete midi_track_p_;
}
void
-Staff_performer::do_creation_processing()
+Staff_performer::initialize ()
{
+ audio_staff_ = new Audio_staff;
+ name_ = new Audio_text (Audio_text::TRACK_NAME, context ()->id_string ());
+
+ audio_staff_->add_audio_item (name_);
+
+ announce_element (Audio_element_info (audio_staff_, 0));
+ announce_element (Audio_element_info (name_, 0));
}
void
-Staff_performer::do_removal_processing()
+Staff_performer::process_music ()
{
- header();
-
- Moment midi_mom = 0;
- for ( PCursor<Audio_item*> i( audio_item_p_list_ ); i.ok(); i++ ) {
- Audio_item* l = *i;
- Moment mom = l->audio_column_l_->at_mom();
- Moment delta_t = mom - midi_mom_ ;
- midi_mom_ += delta_t;
- Midi_item* p = l->midi_item_p();
- p->channel_i_ = track_i_;
- midi_track_p_->add( delta_t, p );
- delete p;
+ string str = new_instrument_string ();
+ if (str.length ())
+ {
+ instrument_name_ = new Audio_text (Audio_text::INSTRUMENT_NAME, str);
+ announce_element (Audio_element_info (instrument_name_, 0));
+ instrument_ = new Audio_instrument (str);
+ announce_element (Audio_element_info (instrument_, 0));
+
+ audio_staff_->add_audio_item (instrument_);
+ audio_staff_->add_audio_item (instrument_name_);
+
+ /*
+ Have to be here before notes arrive into the staff.
+ */
}
-
- Performer::play( midi_track_p_ );
}
void
-Staff_performer::header()
+Staff_performer::stop_translation_timestep ()
{
- // set track name
- Midi_text track_name( Midi_text::TRACK_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &track_name );
-
- // set instrument description
- Midi_text instrument_name( Midi_text::INSTRUMENT_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument_name );
-
- // set instrument :-)
- // lieve wendy, nu heb je mijn track_i_ / get_staff_i weggehaald...
- // zie ook note-performer: ugh
- // ugh, need to know channel (===track===staff) too
- int channel_i = track_i_;
- Midi_instrument instrument( channel_i, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument );
-
- Midi_tempo midi_tempo( get_tempo_i() );
- midi_track_p_->add( Moment( 0 ), &midi_tempo );
-}
+ SCM proc = ly_lily_module_constant ("percussion?");
-String
-Staff_performer::instrument_str()
-{
- return Translator::id_str_;
+ SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.c_str ()));
+ audio_staff_->channel_ = (drums == SCM_BOOL_T ? 9 : -1);
+ if (name_)
+ {
+ name_ = 0;
+ }
+ if (tempo_)
+ {
+ tempo_ = 0;
+ }
+ instrument_name_ = 0;
+ instrument_ = 0;
}
-void
-Staff_performer::play( Audio_item* p )
+void
+Staff_performer::finalize ()
{
- audio_item_p_list_.bottom().add( p );
- Performer::play( p );
+ audio_staff_ = 0;
}
-// huh?
-void
-Staff_performer::play( Midi_item* p )
+string
+Staff_performer::new_instrument_string ()
{
- Performer::play( p );
-}
+ // mustn't ask Score for instrument: it will return piano!
+ SCM minstr = get_property ("midiInstrument");
+ if (!scm_is_string (minstr)
+ || ly_scm2string (minstr) == instrument_string_)
+ return "";
-//<ugh>
-int
-Staff_performer::get_track_i() const
-{
- return track_i_;
+ instrument_string_ = ly_scm2string (minstr);
+
+ return instrument_string_;
}
void
-Staff_performer::set_track( int& track_i_r )
+Staff_performer::acknowledge_audio_element (Audio_element_info inf)
{
- track_i_ = track_i_r++;
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (inf.elem_))
+ audio_staff_->add_audio_item (ai);
}
-//</ugh>