source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.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 "paper-def.hh"
-#include "main.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
{
- lreq_l_ =0;
- lyric_item_p_ =0;
+protected:
+ virtual void stop_translation_timestep ();
+ virtual bool try_music (Music *);
+ virtual void process_music ();
+ virtual void start_translation_timestep ();
+
+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->access_Musical_req ();
- if (!m || ! m->access_Lyric_req ())
- return false;
- lreq_l_ = m->access_Lyric_req ();
-
- return true;
+ if (r->is_mus_type ("lyric-event"))
+ {
+ if (req_)
+ return false;
+ req_ =r;
+ return true;
+ }
+ return false;
}
void
-Lyric_engraver::do_process_requests()
+Lyric_engraver::process_music ()
{
- if (lreq_l_)
+ if (req_)
{
- Text_def *td_p = new Text_def;
- td_p->text_str_ = lreq_l_->text_str_;
- td_p->align_dir_ = LEFT;
- Scalar style = get_property ("textstyle");
- if (style.length_i ())
- {
- td_p->style_str_ = style;
- }
- Scalar alignment = get_property ("textalignment");
- if (alignment.isnum_b())
- {
- td_p->align_dir_= (Direction)(int)alignment;
- }
+ text_= new Item (get_property ("LyricText"));
- lyric_item_p_ = new Text_item (td_p);
-
- lyric_item_p_->dir_ = DOWN;
- lyric_item_p_->fat_b_ = true;
- announce_element (Score_element_info (lyric_item_p_, lreq_l_));
+ 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_l_ =0;
+ if (text_)
+ {
+ typeset_grob (text_);
+ text_ =0;
+ }
}
void
-Lyric_engraver::do_pre_move_processing()
+Lyric_engraver::start_translation_timestep ()
{
- if (lyric_item_p_)
- {
- typeset_element (lyric_item_p_);
- lyric_item_p_ =0;
- }
+ req_ =0;
}
-IMPLEMENT_IS_TYPE_B1(Lyric_engraver,Engraver);
-ADD_THIS_TRANSLATOR(Lyric_engraver);
+ENTER_DESCRIPTION(Lyric_engraver,
+/* descr */ "",
+/* creats*/ "",
+/* accepts */ "lyric-event",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");