2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 #include "rhythmic-head.hh"
8 #include "paper-def.hh"
9 #include "musical-request.hh"
11 #include "dot-column.hh"
12 #include "staff-symbol-referencer.hh"
14 #include "score-engraver.hh"
20 class Note_heads_engraver : public Engraver
22 Link_array<Item> note_p_arr_;
23 Link_array<Item> dot_p_arr_;
24 Link_array<Note_req> note_req_l_arr_;
27 VIRTUAL_COPY_CONS(Translator);
28 Note_heads_engraver();
31 virtual void do_post_move_processing ();
32 virtual bool do_try_music (Music *req_l) ;
33 virtual void do_process_music();
34 virtual void do_pre_move_processing();
41 Note_heads_engraver::Note_heads_engraver()
46 Note_heads_engraver::do_try_music (Music *m)
48 if (Note_req * n =dynamic_cast <Note_req *> (m))
50 note_req_l_arr_.push (n);
51 note_end_mom_ = note_end_mom_ >? now_mom () + m->length_mom ();
55 else if ( dynamic_cast<Tonic_req*> (m))
59 else if ( dynamic_cast<Inversion_req*> (m))
63 else if (dynamic_cast<Bass_req*> (m))
67 else if (dynamic_cast<Busy_playing_req*> (m))
69 return now_mom () < note_end_mom_;
76 Note_heads_engraver::do_process_music()
78 if (note_p_arr_.size ())
81 for (int i=0; i < note_req_l_arr_.size (); i++)
83 Item *note_p = new Item (get_property ("NoteHead"));
85 Staff_symbol_referencer::set_interface (note_p);
89 Music * req = note_req_l_arr_[i];
91 Duration dur = *unsmob_duration (req->get_mus_property ("duration"));
92 note_p->set_elt_property ("duration-log",
93 gh_int2scm (dur.duration_log () <? 2));
97 Item * d = new Item (get_property ("Dots"));
98 Rhythmic_head::set_dots (note_p, d);
101 != gh_scm2int (d->get_elt_property ("dot-count")))
102 d->set_elt_property ("dot-count", gh_int2scm (dur.dot_count ()));
104 d->set_parent (note_p, Y_AXIS);
105 announce_element (d,0);
109 note_p->set_elt_property("staff-position", gh_int2scm (unsmob_pitch (req->get_mus_property ("pitch"))->steps ()));
111 announce_element (note_p,req);
112 note_p_arr_.push (note_p);
117 Note_heads_engraver::do_pre_move_processing()
119 for (int i=0; i < note_p_arr_.size (); i++)
121 typeset_element (note_p_arr_[i]);
123 note_p_arr_.clear ();
124 for (int i=0; i < dot_p_arr_.size (); i++)
126 typeset_element (dot_p_arr_[i]);
130 note_req_l_arr_.clear ();
134 Note_heads_engraver::do_post_move_processing ()
136 /* TODO:make this settable?
138 if (note_end_mom_ > now_mom())
140 Score_engraver * e = 0;
141 Translator * t = daddy_grav_l ();
142 for (; !e && t; t = t->daddy_trans_l_)
144 e = dynamic_cast<Score_engraver*> (t);
148 programming_error ("No score engraver!");
150 e->forbid_breaks (); // guh. Use properties!
156 ADD_THIS_TRANSLATOR(Note_heads_engraver);