/*
- head-grav.cc -- part of GNU LilyPond
+ note-heads-engraver.cc -- part of GNU LilyPond
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include <ctype.h>
#include "rhythmic-head.hh"
#include "paper-def.hh"
-#include "musical-request.hh"
+#include "event.hh"
#include "dots.hh"
#include "dot-column.hh"
#include "staff-symbol-referencer.hh"
#include "item.hh"
-#include "score-engraver.hh"
+#include "engraver.hh"
#include "warn.hh"
-/**
- make balls and rests
- */
class Note_heads_engraver : public Engraver
{
- Link_array<Item> note_p_arr_;
-
- Link_array<Item> dot_p_arr_;
- Link_array<Note_req> note_req_l_arr_;
+ Link_array<Item> notes_;
+ Link_array<Item> dots_;
+ Link_array<Music> note_reqs_;
public:
TRANSLATOR_DECLARATIONS(Note_heads_engraver);
protected:
- virtual void start_translation_timestep ();
- virtual bool try_music (Music *req_l) ;
+ virtual bool try_music (Music *req) ;
virtual void process_music ();
virtual void stop_translation_timestep ();
};
-
Note_heads_engraver::Note_heads_engraver()
{
}
bool
Note_heads_engraver::try_music (Music *m)
{
- if (Note_req * n =dynamic_cast <Note_req *> (m))
+ if (m->is_mus_type ("note-event"))
{
- note_req_l_arr_.push (n);
+ note_reqs_.push (m);
return true;
}
- else if (dynamic_cast<Busy_playing_req*> (m))
- {
- return note_req_l_arr_.size ();
- }
+ else if (m->is_mus_type ("busy-playing-event"))
+ return note_reqs_.size ();
+ else if (m->is_mus_type ("start-playing-event"))
+ return note_reqs_.size ();
return false;
}
void
Note_heads_engraver::process_music ()
{
- for (int i=0; i < note_req_l_arr_.size (); i++)
+ for (int i=0; i < note_reqs_.size (); i++)
{
- Item *note_p = new Item (get_property ("NoteHead"));
-
- Music * req = note_req_l_arr_[i];
+ Item *note = make_item ("NoteHead");
+
+ Music * req = note_reqs_[i];
Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
- note_p->set_grob_property ("duration-log", gh_int2scm (dur.duration_log ()));
-
+ note->set_grob_property ("duration-log", gh_int2scm (dur.duration_log ()));
if (dur.dot_count ())
{
- Item * d = new Item (get_property ("Dots"));
- Rhythmic_head::set_dots (note_p, d);
+ Item * d = make_item ("Dots");
+ Rhythmic_head::set_dots (note, d);
if (dur.dot_count ()
- != gh_scm2int (d->get_grob_property ("dot-count")))
+ != robust_scm2int (d->get_grob_property ("dot-count"), 0))
d->set_grob_property ("dot-count", gh_int2scm (dur.dot_count ()));
- d->set_parent (note_p, Y_AXIS);
+ d->set_parent (note, Y_AXIS);
announce_grob (d, SCM_EOL);
- dot_p_arr_.push (d);
+ dots_.push (d);
}
Pitch *pit =unsmob_pitch (req->get_mus_property ("pitch"));
- int pos = pit->steps ();
+ int pos = pit ? pit->steps () : 0;
SCM c0 = get_property ("centralCPosition");
if (gh_number_p (c0))
pos += gh_scm2int (c0);
- note_p->set_grob_property ("staff-position", gh_int2scm (pos));
- announce_grob (note_p,req->self_scm());
- note_p_arr_.push (note_p);
+ note->set_grob_property ("staff-position", gh_int2scm (pos));
+ announce_grob (note,req->self_scm());
+ notes_.push (note);
}
}
void
Note_heads_engraver::stop_translation_timestep ()
{
- for (int i=0; i < note_p_arr_.size (); i++)
+ for (int i=0; i < notes_.size (); i++)
{
- typeset_grob (note_p_arr_[i]);
+ typeset_grob (notes_[i]);
}
- note_p_arr_.clear ();
- for (int i=0; i < dot_p_arr_.size (); i++)
+ notes_.clear ();
+ for (int i=0; i < dots_.size (); i++)
{
- typeset_grob (dot_p_arr_[i]);
+ typeset_grob (dots_[i]);
}
- dot_p_arr_.clear ();
-
- note_req_l_arr_.clear ();
+ dots_.clear ();
+ note_reqs_.clear ();
}
-void
-Note_heads_engraver::start_translation_timestep ()
-{
-}
ENTER_DESCRIPTION(Note_heads_engraver,
-/* descr */ "Generate one or more noteheads from Music of type Note_req.",
+/* descr */ "Generate noteheads.",
/* creats*/ "NoteHead Dots",
-/* acks */ "",
+/* accepts */ "note-event busy-playing-event",
+/* acks */ "",
/* reads */ "centralCPosition",
/* write */ "");