src/localkeyreg.cc

   1 /*
   2   localkeyreg.cc -- implement Local_key_register
   3
   4   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5 */
   6 #include "musicalrequest.hh"
   7 #include "commandrequest.hh"
   8 #include "localkeyreg.hh"
   9 #include "localkeyitem.hh"
  10 #include "complexwalker.hh"
  11 #include "keyreg.hh"
  12 #include "debug.hh"
  13
  14 Local_key_register::Local_key_register(Complex_walker*w)
  15     : Request_register(w)
  16 {
  17     key_item_p_ = 0;
  18     key_c_l_ = 0;
  19 }
  20
  21 void
  22 Local_key_register::do_pre_move_process()
  23 {
  24     if (key_item_p_) {
  25         walk_l_->typeset_element(key_item_p_);
  26         key_item_p_ = 0;
  27     }
  28 }
  29 void
  30 Local_key_register::acknowledge_element(Staff_elem_info info)
  31 {
  32     if (info.req_l_->melodic()) {
  33         Melodic_req * melodic_l_ = info.req_l_->melodic();
  34
  35         if( melodic_l_->forceacc_b_ ||
  36             local_key_.oct(melodic_l_->octave_i_).acc(melodic_l_->notename_i_)
  37             != melodic_l_->accidental_i_) {
  38             Item * support_l_ = info.elem_p_->item();
  39
  40
  41             if (!key_item_p_) {
  42                 key_item_p_ = new Local_key_item(walk_l_->c0_position_i());
  43             }
  44
  45             key_item_p_->add(melodic_l_);
  46             key_item_p_->add(support_l_);
  47             local_key_.oct(melodic_l_->octave_i_)
  48                 .set(melodic_l_->notename_i_, melodic_l_->accidental_i_);
  49         }
  50     } else if (info.req_l_->command() &&
  51                info.req_l_->command()->keychange()) {
  52         Key_register * key_reg_l = (Key_register*)info.origin_reg_l_;
  53         key_c_l_ = &key_reg_l->key_;
  54         local_key_.reset(*key_c_l_);
  55     }
  56 }
  57
  58 void
  59 Local_key_register::process_request()
  60 {
  61     if (!walk_l_->time_.whole_in_measure_) {
  62         if (key_c_l_)
  63             local_key_.reset(*key_c_l_);
  64         else if( walk_l_->when() >0)
  65             warning ("Help me! can't figure  current key", 0);
  66     }
  67 }