/*
- piano-pedal-performer.cc -- implement Piano_pedal_performer
+ piano-pedal-performer.cc -- implement Piano_pedal_performer
source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "performer.hh"
-#include "command-request.hh"
-#include "musical-request.hh"
+
#include "audio-item.hh"
+#include "international.hh"
+#include "stream-event.hh"
+#include "warn.hh"
+#include "translator.icc"
-/*
- TODO:
- sostenuto
- una-chorda / tre-corde
- */
+typedef enum Pedal_type {SOSTENUTO, SUSTAIN, UNA_CORDA, NUM_PEDAL_TYPES};
/**
perform Piano pedals
- */
+*/
class Piano_pedal_performer : public Performer
{
+ struct Pedal_info
+ {
+ Stream_event *start_event_;
+ Drul_array<Stream_event *> event_drul_;
+ };
+
public:
- VIRTUAL_COPY_CONS (Translator);
-
- Piano_pedal_performer ();
+ TRANSLATOR_DECLARATIONS (Piano_pedal_performer);
protected:
- virtual bool do_try_music (Music*);
- virtual void do_process_music ();
- virtual void do_pre_move_processing ();
- virtual void do_post_move_processing ();
-
+ virtual void initialize ();
+ static const char *pedal_type_str (int t);
+ void process_music ();
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
+ DECLARE_TRANSLATOR_LISTENER (sustain);
+ DECLARE_TRANSLATOR_LISTENER (una_corda);
+ DECLARE_TRANSLATOR_LISTENER (sostenuto);
private:
- Link_array<Audio_piano_pedal> audio_p_arr_;
- Span_req* sustain_start_req_l_;
- Drul_array<Span_req*> sustain_req_l_drul_;
+ vector<Audio_piano_pedal*> audios_;
+ Pedal_info info_alist_[NUM_PEDAL_TYPES];
};
-ADD_THIS_TRANSLATOR (Piano_pedal_performer);
-
Piano_pedal_performer::Piano_pedal_performer ()
{
- sustain_req_l_drul_[START] = 0;
- sustain_req_l_drul_[STOP] = 0;
- sustain_start_req_l_ = 0;
+}
+
+const char *
+Piano_pedal_performer::pedal_type_str (int t)
+{
+ switch (t)
+ {
+ case SOSTENUTO:
+ return "Sostenuto";
+ case SUSTAIN:
+ return "Sustain";
+ case UNA_CORDA:
+ return "UnaCorda";
+ default:
+ programming_error ("Unknown pedal type");
+ return 0;
+ }
+}
+
+void
+Piano_pedal_performer::initialize ()
+{
+ Pedal_info *p = info_alist_;
+
+ for (int i = 0; i < NUM_PEDAL_TYPES; i++, p++)
+ {
+ p->event_drul_[START] = 0;
+ p->event_drul_[STOP] = 0;
+ p->start_event_ = 0;
+ }
}
void
-Piano_pedal_performer::do_process_music ()
+Piano_pedal_performer::process_music ()
{
- if (sustain_req_l_drul_[STOP])
+ Pedal_info *p = info_alist_;
+
+ for (int i = 0; i < NUM_PEDAL_TYPES; i++, p++)
{
- if (!sustain_start_req_l_)
+ string pedal_type = pedal_type_str (i);
+ if (p->event_drul_[STOP])
{
- sustain_req_l_drul_[STOP]->warning (_ ("can't find start of piano_pedal"));
+ if (!p->start_event_)
+ p->event_drul_[STOP]->origin ()->warning (_f ("cannot find start of piano pedal: `%s'", pedal_type));
+ else
+ {
+ Audio_piano_pedal *a = new Audio_piano_pedal;
+ a->type_string_ = pedal_type;
+ a->dir_ = STOP;
+ audios_.push_back (a);
+ Audio_element_info info (a, p->event_drul_[STOP]);
+ announce_element (info);
+ }
+ p->start_event_ = 0;
}
- else
+
+ if (p->event_drul_[START])
{
- Audio_piano_pedal* p = new Audio_piano_pedal;
- p->type_b_ = false;
- audio_p_arr_.push (p);
+ p->start_event_ = p->event_drul_[START];
+ Audio_piano_pedal *a = new Audio_piano_pedal;
+ a->type_string_ = pedal_type;
+ a->dir_ = START;
+ audios_.push_back (a);
+ Audio_element_info info (a, p->event_drul_[START]);
+ announce_element (info);
}
- sustain_start_req_l_ = 0;
+ p->event_drul_[START] = 0;
+ p->event_drul_[STOP] = 0;
}
+}
- if (sustain_req_l_drul_[START])
+void
+Piano_pedal_performer::stop_translation_timestep ()
+{
+ audios_.clear ();
+}
+
+void
+Piano_pedal_performer::start_translation_timestep ()
+{
+ Pedal_info *p = info_alist_;
+ for (int i = 0; i < NUM_PEDAL_TYPES; i++, p++)
{
- sustain_start_req_l_ = sustain_req_l_drul_[START];
- Audio_piano_pedal* p = new Audio_piano_pedal;
- p->type_b_ = true;
- audio_p_arr_.push (p);
+ p->event_drul_[STOP] = 0;
+ p->event_drul_[START] = 0;
}
}
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_performer, sostenuto);
void
-Piano_pedal_performer::do_pre_move_processing ()
+Piano_pedal_performer::listen_sostenuto (Stream_event *r)
{
- for (int i=0; i < audio_p_arr_.size (); i++)
- play_element (audio_p_arr_[i]);
- audio_p_arr_.clear ();
+ Direction d = to_dir (r->get_property ("span-direction"));
+ info_alist_[SOSTENUTO].event_drul_[d] = r;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_performer, sustain);
void
-Piano_pedal_performer::do_post_move_processing ()
+Piano_pedal_performer::listen_sustain (Stream_event *r)
{
- sustain_req_l_drul_[STOP] = 0;
- sustain_req_l_drul_[START] = 0;
+ Direction d = to_dir (r->get_property ("span-direction"));
+ info_alist_[SUSTAIN].event_drul_[d] = r;
}
-bool
-Piano_pedal_performer::do_try_music (Music* r)
+IMPLEMENT_TRANSLATOR_LISTENER (Piano_pedal_performer, una_corda);
+void
+Piano_pedal_performer::listen_una_corda (Stream_event *r)
{
- if (Span_req * s = dynamic_cast<Span_req*>(r))
- {
- if (s->span_type_str_ == "sustain")
- {
- sustain_req_l_drul_[s->span_dir_] = s;
- return true;
- }
- }
- return false;
+ Direction d = to_dir (r->get_property ("span-direction"));
+ info_alist_[UNA_CORDA].event_drul_[d] = r;
}
+
+ADD_TRANSLATOR (Piano_pedal_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff