lily/headreg.cc

   1 /*
   2   headreg.cc -- part of LilyPond
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5 */
   6
   7 #include "notehead.hh"
   8 #include "head-reg.hh"
   9 #include "paper-def.hh"
  10 #include "complex-walker.hh"
  11 #include "musical-request.hh"
  12
  13 Notehead_register::Notehead_register()
  14 {
  15     note_p_ = 0;
  16     set_feature(Features::dir(0));
  17     post_move_processing();
  18 }
  19
  20 bool
  21 Notehead_register::try_request(Request *req_l)
  22 {
  23     if (req_l->note() || req_l->rest())
  24         note_req_l_=req_l->rhythmic();
  25     else
  26         return false;
  27
  28     return true;
  29 }
  30 void
  31 Notehead_register::set_feature(Features d)
  32 {
  33     if(d.direction_i_ || d.initialiser_b_)
  34         dir_i_ = d.direction_i_;
  35 }
  36
  37 void
  38 Notehead_register::process_requests()
  39 {
  40     if (!note_req_l_)
  41         return;
  42
  43     Notehead*n_p = new Notehead(8);     // ugh
  44     note_p_ = n_p;
  45     n_p->set_rhythmic(note_req_l_->rhythmic());
  46
  47     if (note_req_l_->note()) {
  48         n_p->position = note_req_l_->note()->height() +
  49             *get_staff_info().c0_position_i_l_;
  50     } else if (note_req_l_->rest()) {
  51         n_p->rest_b_ = true;
  52         if (note_req_l_->rhythmic()->duration_.type_i_ <= 2)
  53             note_p_->translate(
  54                 Offset(0,
  55                        6 * paper()->internote()));
  56     }
  57
  58     Staff_elem_info itinf(note_p_,note_req_l_);
  59     announce_element(itinf);
  60 }
  61
  62 void
  63 Notehead_register::pre_move_processing()
  64 {
  65     if (note_p_) {
  66         if (dir_i_ && note_p_->rest_b_ && note_p_->balltype <= 2) {
  67             note_p_->position +=4*dir_i_ ;
  68         }
  69         typeset_element(note_p_);
  70         note_p_ = 0;
  71     }
  72 }
  73 void
  74 Notehead_register::post_move_processing()
  75 {
  76     note_req_l_ = 0;
  77 }
  78
  79 IMPLEMENT_STATIC_NAME(Notehead_register);
  80 ADD_THIS_REGISTER(Notehead_register);