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>
*/
#include "item.hh"
#include "staff-symbol-referencer.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "dots.hh"
#include "rhythmic-head.hh"
#include "engraver.hh"
class Rest_engraver : public Engraver
{
- Rest_req *rest_req_l_;
- Item * dot_p_;
- Score_element* rest_p_;
+ Music *rest_req_;
+ Item * dot_;
+ Grob* rest_;
protected:
- virtual bool do_try_music (Music *);
- virtual void do_pre_move_processing ();
- virtual void do_post_move_processing ();
- virtual void do_process_music ();
+ virtual bool try_music (Music *);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void process_music ();
+
public:
-
- VIRTUAL_COPY_CONS(Translator);
- Rest_engraver ();
+ TRANSLATOR_DECLARATIONS(Rest_engraver);
};
*/
Rest_engraver::Rest_engraver ()
{
- rest_req_l_ =0;
- rest_p_ =0;
- dot_p_ =0;
+ rest_req_ =0;
+ rest_ =0;
+ dot_ =0;
}
void
-Rest_engraver::do_post_move_processing ()
+Rest_engraver::start_translation_timestep ()
{
- rest_req_l_ =0;
+ rest_req_ =0;
}
void
-Rest_engraver::do_pre_move_processing ()
+Rest_engraver::stop_translation_timestep ()
{
- if (rest_p_)
+ if (rest_)
{
- typeset_element (rest_p_);
- rest_p_ =0;
+ typeset_grob (rest_);
+ rest_ =0;
}
- if (dot_p_)
+ if (dot_)
{
- typeset_element (dot_p_);
- dot_p_ =0;
+ typeset_grob (dot_);
+ dot_ =0;
}
}
void
-Rest_engraver::do_process_music ()
+Rest_engraver::process_music ()
{
- if (rest_req_l_ && !rest_p_)
+ if (rest_req_ && !rest_)
{
- rest_p_ = new Item (get_property ("Rest"));
- Rhythmic_head::set_interface (rest_p_);
- Staff_symbol_referencer::set_interface (rest_p_);
+ rest_ = make_item ("Rest");
+ int durlog = unsmob_duration (rest_req_->get_mus_property ("duration"))-> duration_log ();
- rest_p_->set_elt_property ("duration-log",
- gh_int2scm (rest_req_l_->duration_.durlog_i_));
+ rest_->set_grob_property ("duration-log",
+ gh_int2scm (durlog));
+
+ int dots =unsmob_duration (rest_req_->get_mus_property ("duration"))->dot_count ();
- if (rest_req_l_->duration_.dots_i_)
+ if (dots)
{
- dot_p_ = new Item (get_property ("Dots"));
+ dot_ = make_item ("Dots");
- Rhythmic_head::set_dots (rest_p_, dot_p_);
- dot_p_->set_parent (rest_p_, Y_AXIS);
- dot_p_->set_elt_property ("dot-count",
- gh_int2scm (rest_req_l_->duration_.dots_i_));
- announce_element (dot_p_,0);
+ Rhythmic_head::set_dots (rest_, dot_);
+ dot_->set_parent (rest_, Y_AXIS);
+ dot_->set_grob_property ("dot-count", gh_int2scm (dots));
+ announce_grob (dot_, SCM_EOL);
}
- announce_element (rest_p_, rest_req_l_);
+ Pitch *p = unsmob_pitch (rest_req_->get_mus_property ("pitch"));
+
+ /*
+ This is ridiculous -- rests don't have pitch, but we act as if
+ our nose is bleeding.
+ */
+ if (p)
+ {
+ int pos= p->steps ();
+ SCM c0 = get_property ("centralCPosition");
+ if (gh_number_p (c0))
+ pos += gh_scm2int (c0);
+
+ rest_->set_grob_property ("staff-position", gh_int2scm (pos));
+ }
+
+ announce_grob(rest_, rest_req_->self_scm());
}
}
bool
-Rest_engraver::do_try_music (Music *m)
+Rest_engraver::try_music (Music *m)
{
- if (Rest_req *r = dynamic_cast <Rest_req *> (m))
+ if (m->is_mus_type ("rest-event"))
{
- rest_req_l_ = r;
+ rest_req_ = m;
return true;
- }
+ }
return false;
}
-
-ADD_THIS_TRANSLATOR(Rest_engraver);
+ENTER_DESCRIPTION(Rest_engraver,
+/* descr */ "",
+/* creats*/ "Rest Dots",
+/* accepts */ "rest-event",
+/* acks */ "",
+/* reads */ "centralCPosition",
+/* write */ "");