source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "lyric-engraver.hh"
-#include "musical-request.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"
-ADD_THIS_TRANSLATOR (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()
+Lyric_engraver::Lyric_engraver ()
{
- text_p_ =0;
- req_l_ =0;
+ text_ =0;
+ req_ =0;
}
bool
-Lyric_engraver::do_try_music (Music*r)
+Lyric_engraver::try_music (Music*r)
{
- if (Lyric_req* l = dynamic_cast <Lyric_req *> (r))
+ if (r->is_mus_type ("lyric-event"))
{
- if (req_l_)
+ if (req_)
return false;
- req_l_ =l;
+ req_ =r;
return true;
}
return false;
}
void
-Lyric_engraver::do_process_music()
+Lyric_engraver::process_music ()
{
- if (req_l_)
+ if (req_)
{
- text_p_= new Item (get_property ("basicLyricTextProperties"));
-
- text_p_->set_elt_property ("text",
-// ly_str02scm ((req_l_->text_str_ + " ").ch_C ()));
- ly_str02scm ((req_l_->text_str_).ch_C ()));
-
- text_p_->add_offset_callback (&Side_position::aligned_on_self,X_AXIS);
- /*
- We can't reach the notehead where we're centered from here. So
- we kludge.
-
- (UGH UGH, pulled amount of space out of thin air value )
- */
+ text_= make_item ("LyricText");
- text_p_->translate_axis (paper_l()->get_var ("staffspace")*0.66, X_AXIS);
-
- announce_element (text_p_, req_l_);
+ text_->set_grob_property ("text", req_->get_mus_property ("text"));
+ announce_grob (text_, req_->self_scm());
}
}
void
-Lyric_engraver::do_pre_move_processing()
+Lyric_engraver::stop_translation_timestep ()
{
- if (text_p_)
+ if (text_)
{
- typeset_element (text_p_);
- text_p_ =0;
+ typeset_grob (text_);
+ text_ =0;
}
-}
-
-void
-Lyric_engraver::do_post_move_processing ()
-{
- req_l_ =0;
+ req_ =0;
}
+ENTER_DESCRIPTION(Lyric_engraver,
+/* descr */ "",
+/* creats*/ "",
+/* accepts */ "lyric-event",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");