/*
staff-performer.cc -- implement Staff_performer
- (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ source file of the GNU LilyPond music typesetter
+ (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-#include "staff-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "debug.hh"
-#include "midi-def.hh"
-#include "midi-item.hh"
-#include "midi-stream.hh"
-#include "string.hh"
-#include "string-convert.hh"
+#include "warn.hh"
+#include "audio-column.hh"
+#include "audio-item.hh"
+#include "audio-staff.hh"
+#include "performer-group.hh"
+#include "context.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 ()
+*/
+class Staff_performer : public Performer
+{
+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"
-Staff_performer::Staff_performer()
+ADD_TRANSLATOR (Staff_performer, "", "",
+ "",
+ "", "");
+
+Staff_performer::Staff_performer ()
{
- midi_mom_ = 0;
- track_i_ = 0;
- midi_track_p_ = 0;
+ 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::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_ = new Audio_staff;
+ name_ = new Audio_text (Audio_text::TRACK_NAME, context ()->id_string ());
+ tempo_ = new Audio_tempo (get_tempo ());
- // set instrument :-)
- Midi_text instrument_name( Midi_text::INSTRUMENT_NAME, instrument_str() );
- midi_track_p_->add( Moment( 0 ), &instrument_name );
+ audio_staff_->add_audio_item (name_);
+ audio_staff_->add_audio_item (tempo_);
+
+ announce_element (Audio_element_info (audio_staff_, 0));
+ announce_element (Audio_element_info (name_, 0));
+ announce_element (Audio_element_info (tempo_, 0));
+}
- Midi_tempo midi_tempo( midi_l_->get_tempo_i( Moment( 1, 4 ) ) );
- midi_track_p_->add( Moment( 0 ), &midi_tempo );
+void
+Staff_performer::process_music ()
+{
+ 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.
+ */
+ play_element (instrument_);
+ play_element (instrument_name_);
+ }
}
-String
-Staff_performer::instrument_str()
-{
- return Translator::id_str_;
+void
+Staff_performer::stop_translation_timestep ()
+{
+ SCM proc = ly_lily_module_constant ("percussion?");
+
+ SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.c_str ()));
+ audio_staff_->channel_ = (drums == SCM_BOOL_T ? 9 : -1);
+ if (name_)
+ {
+ play_element (name_);
+ name_ = 0;
+ }
+ if (tempo_)
+ {
+ play_element (tempo_);
+ tempo_ = 0;
+ }
+ instrument_name_ = 0;
+ instrument_ = 0;
}
void
-Staff_performer::midi_output( Midi_stream* midi_stream_l )
+Staff_performer::finalize ()
{
- *mlog << "[" << track_i_ << "]";
- *midi_stream_l << *midi_track_p_;
+ Performer::play_element (audio_staff_);
+ audio_staff_ = 0;
}
-void
-Staff_performer::play_event( Midi_item* l )
+string
+Staff_performer::new_instrument_string ()
{
- Moment mom = get_mom();
- Moment delta_t = mom - midi_mom_ ;
- midi_mom_ += delta_t;
- midi_track_p_->add( delta_t, l );
+ // 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 "";
+
+ instrument_string_ = ly_scm2string (minstr);
+
+ return instrument_string_;
}
void
-Staff_performer::set_track( Midi_def* midi_l, int& track_i_r )
-{
- midi_l_ = midi_l;
- track_i_ = track_i_r++;
- midi_track_p_ = new Midi_track( track_i_ );
- header();
+Staff_performer::acknowledge_audio_element (Audio_element_info inf)
+{
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (inf.elem_))
+ audio_staff_->add_audio_item (ai);
}