source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "musical-request.hh"
-#include "main.hh"
-#include "dimensions.hh"
-#include "g-text-item.hh"
#include "engraver.hh"
-#include "array.hh"
-#include "lily-proto.hh"
-
+#include "event.hh"
+#include "item.hh"
+#include "paper-def.hh"
+#include "font-metric.hh"
+#include "side-position-interface.hh"
+
+/**
+ 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 do_pre_move_processing();
- virtual bool do_try_music (Music*);
- virtual void do_process_requests();
-
+ virtual void stop_translation_timestep ();
+ virtual bool try_music (Music *);
+ virtual void process_music ();
+
public:
- Lyric_engraver();
- VIRTUAL_COPY_CONS(Translator);
-
+ TRANSLATOR_DECLARATIONS(Lyric_engraver);
private:
- Link_array<Lyric_req> lyric_req_l_arr_;
- Link_array<Item> text_p_arr_;
+ Music * req_;
+ Item* text_;
};
-ADD_THIS_TRANSLATOR(Lyric_engraver);
-Lyric_engraver::Lyric_engraver()
+Lyric_engraver::Lyric_engraver ()
{
+ 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"))
{
- lyric_req_l_arr_.push (l);
+ if (req_)
+ return false;
+ req_ =r;
return true;
}
return false;
}
void
-Lyric_engraver::do_process_requests()
+Lyric_engraver::process_music ()
{
- if (text_p_arr_.size ())
- return;
-
- for (int i=0; i < lyric_req_l_arr_.size (); i++)
+ if (req_)
{
- Lyric_req* request_l = lyric_req_l_arr_[i];
- G_text_item* item_p = new G_text_item;
- item_p->text_str_ = request_l->text_str_;
-
- Scalar style = get_property ("textstyle", 0);
- if (style.length_i ())
- item_p->style_str_ = style;
- // urg, when/how can one get the height of this thing?
- item_p->translate (Offset (0, - i * 12 PT));
+ text_= make_item ("LyricText");
- text_p_arr_.push (item_p);
- announce_element (Score_element_info (item_p, request_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 ()
{
- for (int i=0; i < text_p_arr_.size (); i++)
+ if (text_)
{
- typeset_element (text_p_arr_[i]);
+ typeset_grob (text_);
+ text_ =0;
}
- text_p_arr_.clear ();
- lyric_req_l_arr_.clear ();
+ req_ =0;
}
+
+ENTER_DESCRIPTION(Lyric_engraver,
+/* descr */ "",
+/* creats*/ "",
+/* accepts */ "lyric-event",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");