src/headreg.cc

   1 /*
   2   headreg.cc -- part of LilyPond
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5 */
   6 #include "rest.hh"
   7 #include "notehead.hh"
   8 #include "headreg.hh"
   9 #include "paperdef.hh"
  10 #include "complexwalker.hh"
  11
  12
  13 Notehead_register::Notehead_register(Complex_walker*w_l)
  14     :Request_register(w_l)
  15 {
  16     note_p_ = 0;
  17     set_dir(0);
  18 }
  19
  20 bool
  21 Notehead_register::try_request(Request *req_l)
  22 {
  23     if (req_l->note() || req_l->rest())
  24         accepted_req_arr_.push(req_l);
  25     else
  26         return false;
  27
  28     return true;
  29 }
  30 void
  31 Notehead_register::set_dir(int d)
  32 {
  33     dir_i_ = d;
  34 }
  35
  36 void
  37 Notehead_register::process_request()
  38 {
  39     if (!accepted_req_arr_.size())
  40         return;
  41
  42     Request* req_l = accepted_req_arr_.top();
  43     if (req_l->note()) {
  44         Notehead*n_p = new Notehead(8); // ugh
  45         note_p_ = n_p;
  46         n_p->set_rhythmic(req_l->rhythmic());
  47         n_p->position = req_l->note()->height() +
  48             walk_l_->clef_.c0_position_i_;
  49     } else {
  50         note_p_ = new Rest ( req_l->rhythmic()->balltype,
  51                              req_l->rhythmic()->dots);
  52         if (req_l->rhythmic()->balltype <= 2)
  53             note_p_->translate(
  54                 Offset(0,
  55                        6 * paper()->internote()));
  56     }
  57     Staff_elem_info itinf(note_p_,req_l,this);
  58     announce_element(itinf);
  59 }
  60
  61 void
  62 Notehead_register::do_pre_move_process()
  63 {
  64     if (note_p_) {
  65         if (dir_i_ && note_p_->name() == String("Rest"))
  66             note_p_->translate(Offset(0, 4*dir_i_ * paper()->internote()));
  67         typeset_element(note_p_);
  68         note_p_ = 0;
  69     }
  70 }