lily/head-reg.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     post_move_processing();
  17 }
  18
  19 bool
  20 Notehead_register::try_request(Request *req_l)
  21 {
  22     if (req_l->note() || req_l->rest())
  23         note_req_l_=req_l->rhythmic();
  24     else
  25         return false;
  26
  27     return true;
  28 }
  29
  30 void
  31 Notehead_register::process_requests()
  32 {
  33     if (!note_req_l_)
  34         return;
  35
  36     Notehead*n_p = new Notehead(8);     // ugh
  37     note_p_ = n_p;
  38     n_p->set_rhythmic(note_req_l_->rhythmic());
  39
  40     if (note_req_l_->note()) {
  41         n_p->position_i_ = note_req_l_->note()->height() +
  42             *get_staff_info().c0_position_i_l_;
  43     } else if (note_req_l_->rest()) {
  44         n_p->rest_b_ = true;
  45         if (note_req_l_->rhythmic()->duration_.type_i_ <= 2)
  46             note_p_->translate(
  47                 Offset(0,
  48                        6 * paper()->internote()));
  49     }
  50
  51     Score_elem_info itinf(note_p_,note_req_l_);
  52     announce_element(itinf);
  53 }
  54
  55 void
  56 Notehead_register::pre_move_processing()
  57 {
  58     if (note_p_) {
  59         typeset_element(note_p_);
  60         note_p_ = 0;
  61     }
  62 }
  63 void
  64 Notehead_register::post_move_processing()
  65 {
  66     note_req_l_ = 0;
  67 }
  68
  69 IMPLEMENT_STATIC_NAME(Notehead_register);
  70 ADD_THIS_REGISTER(Notehead_register);