source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2009 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "lyric-performer.hh"
-#include "text-def.hh"
-#include "musical-request.hh"
#include "audio-item.hh"
+#include "performer.hh"
+#include "stream-event.hh"
+#include "translator.icc"
+class Lyric_performer : public Performer
+{
+public:
+ TRANSLATOR_DECLARATIONS (Lyric_performer);
+protected:
+ void stop_translation_timestep ();
+ void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (lyric);
+private:
+ vector<Stream_event *> events_;
+ Audio_text *audio_;
+};
-IMPLEMENT_IS_TYPE_B1(Lyric_performer,Performer);
-ADD_THIS_TRANSLATOR(Lyric_performer);
-
-Lyric_performer::Lyric_performer()
+Lyric_performer::Lyric_performer ()
{
+ audio_ = 0;
}
-Lyric_performer::~Lyric_performer()
+void
+Lyric_performer::process_music ()
{
+ // FIXME: won't work with fancy lyrics
+ if (events_.size ()
+ && scm_is_string (events_[0]->get_property ("text"))
+ && ly_scm2string (events_[0]->get_property ("text")).length ())
+ {
+ audio_ = new Audio_text (Audio_text::LYRIC,
+ ly_scm2string (events_[0]->get_property ("text")));
+ Audio_element_info info (audio_, events_[0]);
+ announce_element (info);
+ }
+ events_.clear ();
}
-void
-Lyric_performer::do_print() const
+void
+Lyric_performer::stop_translation_timestep ()
{
-#ifndef NPRINT
- if (lreq_arr_.size())
- lreq_arr_[ 0 ]->print();
-#endif
+ if (audio_)
+ {
+ audio_ = 0;
+ }
+ events_.clear ();
}
+IMPLEMENT_TRANSLATOR_LISTENER (Lyric_performer, lyric);
void
-Lyric_performer::do_process_requests()
+Lyric_performer::listen_lyric (Stream_event *event)
{
- if (lreq_arr_.size() && lreq_arr_[0]->text_str_.length_i())
- play (new Audio_text (Audio_text::LYRIC, lreq_arr_[ 0 ]->text_str_));
- lreq_arr_.clear();
+ events_.push_back (event);
}
-bool
-Lyric_performer::do_try_request (Request* req_l)
-{
- Musical_req* m_l = req_l->access_Musical_req ();
- if (!m_l || ! m_l->access_Lyric_req ())
- return false;
- lreq_arr_.push (m_l->access_Lyric_req ());
+ADD_TRANSLATOR (Lyric_performer,
+ /* doc */
+ "",
- return true;
-}
+ /* create */
+ "",
+
+ /* read */
+ "",
+ /* write */
+ ""
+ );