source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "lyric-engraver.hh"
-#include "musical-request.hh"
-#include "text-item.hh"
+#include "engraver.hh"
+#include "event.hh"
+#include "item.hh"
#include "paper-def.hh"
-#include "lookup.hh"
+#include "font-metric.hh"
+#include "side-position-interface.hh"
-Lyric_engraver::Lyric_engraver()
+/**
+ Generate texts for lyric syllables. We only do one lyric at a time.
+ Multiple copies of this engraver should be used to do multiple voices.
+ */
+class Lyric_engraver : public Engraver
{
+protected:
+ virtual void stop_translation_timestep ();
+ virtual bool try_music (Music *);
+ virtual void process_music ();
+
+public:
+ TRANSLATOR_DECLARATIONS(Lyric_engraver);
+private:
+ Music * req_;
+ Item* text_;
+};
+
+
+
+
+Lyric_engraver::Lyric_engraver ()
+{
+ text_ =0;
+ req_ =0;
}
bool
-Lyric_engraver::do_try_request(Request*r)
+Lyric_engraver::try_music (Music*r)
{
- Musical_req * m =r->musical();
- if (!m || ! m->lreq_l())
+ if (r->is_mus_type ("lyric-event"))
+ {
+ if (req_)
return false;
- lreq_arr_.push(m->lreq_l());
-
- return true;
+ req_ =r;
+ return true;
+ }
+ return false;
}
void
-Lyric_engraver::do_process_requests()
+Lyric_engraver::process_music ()
{
- Text_item * last_item_l =0;
- for (int i=0; i < lreq_arr_.size(); i++) {
- Text_item *lp = new Text_item(lreq_arr_[i]->tdef_p_ );
- lp->dir_i_ = -1;
- lp->fat_b_ = true;
- if (last_item_l)
- lp->add_support(last_item_l);
- last_item_l = lp;
- typeset_element(lp);
+ if (req_)
+ {
+ text_= make_item ("LyricText");
+
+ text_->set_grob_property ("text", req_->get_mus_property ("text"));
+ announce_grob (text_, req_->self_scm());
}
}
void
-Lyric_engraver::do_post_move_processing()
+Lyric_engraver::stop_translation_timestep ()
{
- lreq_arr_.set_size(0);
+ if (text_)
+ {
+ typeset_grob (text_);
+ text_ =0;
+ }
+ req_ =0;
}
-IMPLEMENT_STATIC_NAME(Lyric_engraver);
-IMPLEMENT_IS_TYPE_B1(Lyric_engraver,Request_engraver);
-ADD_THIS_ENGRAVER(Lyric_engraver);
+ENTER_DESCRIPTION(Lyric_engraver,
+/* descr */ "",
+/* creats*/ "",
+/* accepts */ "lyric-event",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");