2 head-grav.cc -- part of GNU LilyPond
4 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 #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"
14 #include "engraver.hh"
20 class Note_heads_engraver : public Engraver
22 Link_array<Rhythmic_head> 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 bool do_try_music (Music *req_l) ;
32 virtual void do_process_music();
33 virtual void do_pre_move_processing();
40 Note_heads_engraver::Note_heads_engraver()
45 Note_heads_engraver::do_try_music (Music *m)
47 if (Note_req * n =dynamic_cast <Note_req *> (m))
49 note_req_l_arr_.push (n);
50 note_end_mom_ = note_end_mom_ >? now_mom () + m->length_mom ();
54 else if (Tonic_req* t = dynamic_cast<Tonic_req*> (m))
58 else if (Inversion_req* i = dynamic_cast<Inversion_req*> (m))
62 else if (Bass_req* b = dynamic_cast<Bass_req*> (m))
66 else if (Busy_playing_req * p = dynamic_cast<Busy_playing_req*> (m))
68 return now_mom () < note_end_mom_;
70 else if (Pitch_interrogate_req *p = dynamic_cast<Pitch_interrogate_req*> (m))
72 for (int i= note_req_l_arr_.size (); i--;)
73 p->pitch_arr_.push (note_req_l_arr_[i]->pitch_); // GUH UGH UGHUGH.
81 Note_heads_engraver::do_process_music()
83 if (note_p_arr_.size ())
86 for (int i=0; i < note_req_l_arr_.size (); i++)
88 Rhythmic_head *note_p = new Rhythmic_head (get_property ("basicNoteHeadProperties"));
90 Staff_symbol_referencer_interface si (note_p);
94 Note_req * note_req_l = note_req_l_arr_[i];
96 note_p->set_elt_property ("duration-log",
97 gh_int2scm (note_req_l->duration_.durlog_i_ <? 2));
99 if (note_req_l->duration_.dots_i_)
101 Item * d = new Item (get_property ("basicDotsProperties"));
103 Staff_symbol_referencer_interface sd (d);
106 note_p->set_dots (d);
108 if (note_req_l->duration_.dots_i_
109 != gh_scm2int (d->get_elt_property ("dot-count")))
110 d->set_elt_property ("dot-count", gh_int2scm (note_req_l->duration_.dots_i_));
112 d->set_parent (note_p, Y_AXIS);
113 d->add_offset_callback (Dots::quantised_position_callback, Y_AXIS);
114 announce_element (Score_element_info (d,0));
117 si.set_position(note_req_l->pitch_.steps ());
119 Score_element_info itinf (note_p,note_req_l);
120 announce_element (itinf);
121 note_p_arr_.push (note_p);
126 Note_heads_engraver::do_pre_move_processing()
128 for (int i=0; i < note_p_arr_.size (); i++)
130 typeset_element (note_p_arr_[i]);
132 note_p_arr_.clear ();
133 for (int i=0; i < dot_p_arr_.size (); i++)
135 typeset_element (dot_p_arr_[i]);
139 note_req_l_arr_.clear ();
145 ADD_THIS_TRANSLATOR(Note_heads_engraver);