2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "rhythmic-head.hh"
9 #include "paper-def.hh"
10 #include "musical-request.hh"
12 #include "dot-column.hh"
13 #include "staff-symbol-referencer.hh"
15 #include "score-engraver.hh"
21 class Note_heads_engraver : public Engraver
23 Link_array<Item> note_p_arr_;
24 Link_array<Item> dot_p_arr_;
25 Link_array<Note_req> note_req_l_arr_;
28 VIRTUAL_COPY_CONS(Translator);
31 virtual void start_translation_timestep ();
32 virtual bool try_music (Music *req_l) ;
33 virtual void create_grobs ();
34 virtual void acknowledge_grob (Grob_info) ;
35 virtual void stop_translation_timestep();
40 Note_heads_engraver::try_music (Music *m)
42 if (Note_req * n =dynamic_cast <Note_req *> (m))
44 note_req_l_arr_.push (n);
45 note_end_mom_ = note_end_mom_ >? now_mom () + m->length_mom ();
49 else if (dynamic_cast<Busy_playing_req*> (m))
51 return now_mom () < note_end_mom_;
58 Note_heads_engraver::acknowledge_grob (Grob_info)
64 Note_heads_engraver::create_grobs ()
66 if (note_p_arr_.size ())
69 for (int i=0; i < note_req_l_arr_.size (); i++)
71 Item *note_p = new Item (get_property ("NoteHead"));
73 Staff_symbol_referencer::set_interface (note_p);
77 Music * req = note_req_l_arr_[i];
79 Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
80 note_p->set_grob_property ("duration-log",
81 gh_int2scm (dur.duration_log () <? 2));
85 Item * d = new Item (get_property ("Dots"));
86 Rhythmic_head::set_dots (note_p, d);
89 != gh_scm2int (d->get_grob_property ("dot-count")))
90 d->set_grob_property ("dot-count", gh_int2scm (dur.dot_count ()));
92 d->set_parent (note_p, Y_AXIS);
97 Pitch *pit =unsmob_pitch (req->get_mus_property ("pitch"));
98 note_p->set_grob_property("staff-position", gh_int2scm (pit->steps ()));
100 if (to_boolean (get_property ("easyPlay")))
103 s[0] = (pit->notename_i_ + 2)%7 + 'a';
105 s[0] = toupper (s[0]);
106 note_p->set_grob_property ("note-character", ly_str02scm (s));
109 announce_grob (note_p,req);
110 note_p_arr_.push (note_p);
115 Note_heads_engraver::stop_translation_timestep()
117 for (int i=0; i < note_p_arr_.size (); i++)
119 typeset_grob (note_p_arr_[i]);
121 note_p_arr_.clear ();
122 for (int i=0; i < dot_p_arr_.size (); i++)
124 typeset_grob (dot_p_arr_[i]);
128 note_req_l_arr_.clear ();
132 Note_heads_engraver::start_translation_timestep ()
134 /* TODO:make this settable?
136 if (note_end_mom_ > now_mom() )
138 Score_engraver * e = 0;
139 Translator * t = daddy_grav_l ();
140 for (; !e && t; t = t->daddy_trans_l_)
142 e = dynamic_cast<Score_engraver*> (t);
146 programming_error ("No score engraver!");
148 e->forbid_breaks (); // guh. Use properties!
154 ADD_THIS_TRANSLATOR(Note_heads_engraver);