src/local-key-reg.cc

   1 /*
   2   local-key-reg.cc -- implement Local_key_register
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5 */
   6
   7 #include "musicalrequest.hh"
   8 #include "commandrequest.hh"
   9 #include "local-key-reg.hh"
  10 #include "local-key-item.hh"
  11 #include "complex-walker.hh"
  12 #include "key-reg.hh"
  13 #include "debug.hh"
  14 #include "key-item.hh"
  15
  16 Local_key_register::Local_key_register()
  17 {
  18     key_item_p_ = 0;
  19     key_c_l_ = 0;
  20 }
  21
  22 void
  23 Local_key_register::pre_move_processing()
  24 {
  25     if (key_item_p_) {
  26         typeset_element(key_item_p_);
  27         key_item_p_ = 0;
  28     }
  29 }
  30 void
  31 Local_key_register::acknowledge_element(Staff_elem_info info)
  32 {
  33     if (info.req_l_->melodic()) {
  34         Melodic_req * melodic_l_ = info.req_l_->melodic();
  35
  36         if( melodic_l_->forceacc_b_ ||
  37             local_key_.oct(melodic_l_->octave_i_).acc(melodic_l_->notename_i_)
  38             != melodic_l_->accidental_i_) {
  39             Item * support_l_ = info.elem_p_->item();
  40
  41
  42             if (!key_item_p_) {
  43                 key_item_p_ = new Local_key_item(*get_staff_info().c0_position_i_);
  44             }
  45
  46             key_item_p_->add(melodic_l_);
  47             key_item_p_->add(support_l_);
  48             local_key_.oct(melodic_l_->octave_i_)
  49                 .set(melodic_l_->notename_i_, melodic_l_->accidental_i_);
  50         }
  51     } else if (info.elem_p_->name()==Key_item::static_name()) {
  52         Key_register * key_reg_l =
  53             (Key_register*)info.origin_reg_l_arr_[0];
  54         key_c_l_ = &key_reg_l->key_;
  55         local_key_.reset(*key_c_l_);
  56     }
  57 }
  58
  59 void
  60 Local_key_register::process_requests()
  61 {
  62     const Time_description * time_c_l_ = get_staff_info().time_c_l_;
  63     if (! time_c_l_->whole_in_measure_){
  64         if (key_c_l_)
  65             local_key_.reset(*key_c_l_);
  66         else if( time_c_l_->when_ >0)
  67             warning ("Help me! can't figure  current key", 0);
  68     }
  69 }