/*
staff-performer.cc -- implement Staff_performer
- (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ source file of the GNU LilyPond music typesetter
+ (c) 1997--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+ */
-#include "staff-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
+#include "translator-group.hh"
#include "debug.hh"
-#include "midi-def.hh"
-#include "midi-item.hh"
-#include "midi-stream.hh"
-#include "string.hh"
-#include "string-convert.hh"
+#include "audio-column.hh"
+#include "audio-item.hh"
+#include "audio-staff.hh"
+#include "performer-group-performer.hh"
-IMPLEMENT_STATIC_NAME(Staff_performer);
-IMPLEMENT_IS_TYPE_B1(Staff_performer,Performer_group_performer);
-ADD_THIS_PERFORMER(Staff_performer);
+/** Perform a staff. Individual notes should have their instrument
+ (staff-wide) set, so we override play_element ()
-Staff_performer::Staff_performer()
+ */
+class Staff_performer : public Performer_group_performer
{
- midi_mom_ = 0;
- track_i_ = 0;
- midi_track_p_ = 0;
+public:
+ TRANSLATOR_DECLARATIONS(Staff_performer);
+ ~Staff_performer ();
+
+ String new_instrument_str ();
+ String instrument_str_;
+
+protected:
+ virtual void play_element (Audio_element* p);
+ virtual void finalize ();
+ virtual void initialize ();
+ virtual void create_audio_elements ();
+ virtual void stop_translation_timestep ();
+
+private:
+ Audio_staff* audio_staff_p_;
+ Audio_instrument* instrument_p_;
+ Audio_text* instrument_name_p_;
+ Audio_text* name_p_;
+ Audio_tempo* tempo_p_;
+};
+
+ENTER_DESCRIPTION (Staff_performer, "","","","","" );
+
+Staff_performer::Staff_performer ()
+{
+ 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 midi_track_p_;
}
void
-Staff_performer::header()
+Staff_performer::initialize ()
{
- // set track name
- Midi_text track_name( Midi_text::TRACK_NAME, "Track " + String_convert::i2dec_str( track_i_, 0, '0' ) );
- midi_track_p_->add( Moment( 0 ), &track_name );
+ audio_staff_p_ = new Audio_staff;
+ announce_element (Audio_element_info (audio_staff_p_, 0));
- // set instrument :-)
- Midi_text instrument_name( Midi_text::INSTRUMENT_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument_name );
+ name_p_ = new Audio_text (Audio_text::TRACK_NAME, id_str_);
+ announce_element (Audio_element_info (name_p_, 0));
- Midi_tempo midi_tempo( midi_l_->get_tempo_i( Moment( 1, 4 ) ) );
- midi_track_p_->add( Moment( 0 ), &midi_tempo );
-}
+ tempo_p_ = new Audio_tempo (get_tempo_i ());
+ announce_element (Audio_element_info (tempo_p_, 0));
-String
-Staff_performer::instrument_str()
-{
- return Translator::id_str_;
+ Performer_group_performer::initialize ();
}
void
-Staff_performer::midi_output( Midi_stream* midi_stream_l )
+Staff_performer::create_audio_elements ()
{
- *mlog << "[" << track_i_ << "]";
- *midi_stream_l << *midi_track_p_;
+ 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::create_audio_elements ();
}
-void
-Staff_performer::play_event( Midi_item* l )
+void
+Staff_performer::stop_translation_timestep ()
{
- Moment mom = get_mom();
- Moment delta_t = mom - midi_mom_ ;
- midi_mom_ += delta_t;
- midi_track_p_->add( delta_t, l );
+ SCM proc = scm_primitive_eval (ly_symbol2scm ("percussion-p"));
+ SCM drums_p = gh_call1 (proc, ly_symbol2scm (instrument_str_.ch_C()));
+ audio_staff_p_->channel_i_ = (drums_p == SCM_BOOL_T ? 9 : -1 );
+ 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::stop_translation_timestep ();
}
void
-Staff_performer::set_track( Midi_def* midi_l, int& track_i_r )
+Staff_performer::finalize ()
+{
+ Performer_group_performer::finalize ();
+ Performer::play_element (audio_staff_p_);
+ audio_staff_p_ = 0;
+}
+
+String
+Staff_performer::new_instrument_str ()
{
- midi_l_ = midi_l;
- track_i_ = track_i_r++;
- midi_track_p_ = new Midi_track( track_i_ );
- header();
+ // mustn't ask Score for instrument: it will return piano!
+ SCM minstr = get_property ("midiInstrument");
+
+ if (!gh_string_p (minstr))
+ minstr = get_property ("instrument");
+
+ if (!gh_string_p (minstr)
+ || ly_scm2string (minstr) == instrument_str_)
+ return "";
+
+ instrument_str_ = ly_scm2string (minstr);
+
+ return instrument_str_;
+}
+
+void
+Staff_performer::play_element (Audio_element* p)
+{
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (p))
+ {
+ audio_staff_p_->add_audio_item (ai);
+ }
+ Performer::play_element (p);
}