lily/voice-group-regs.cc

   1 /*
   2   voicegroup.cc -- implement Voice_group_registers
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8 #include "voice.hh"
   9 #include "proto.hh"
  10 #include "plist.hh"
  11 #include "musical-request.hh"
  12 #include "voice-regs.hh"
  13 #include "voice-group-regs.hh"
  14 #include "register.hh"
  15 #include "complex-walker.hh"
  16 #include "command-request.hh"
  17 #include "debug.hh"
  18 #include "input-register.hh"
  19
  20 static int temp_id_count;
  21
  22 Voice_group_registers::Voice_group_registers(String id,
  23                                              Input_register const *ireg_C)
  24 {
  25     ireg_C_ =ireg_C;
  26     Register_group_register::add(ireg_C->get_nongroup_p_arr());
  27     if (id=="")                 // UGH
  28         id = __FUNCTION__ + String(temp_id_count++);
  29     group_id_str_ = id;
  30     termination_mom_ = 0;
  31 }
  32
  33 bool
  34 Voice_group_registers::try_request(Request*r_l)
  35 {
  36     for (int i=0; i < voice_regs_l_.size(); i++) {
  37         if (voice_regs_l_[i]->voice_l_ == r_l->voice_l())
  38             goto gotcha;
  39     }
  40     return false;
  41 gotcha:
  42     Command_req* c_l = r_l->command();
  43     if (c_l&& c_l->groupfeature()) {
  44         set_feature(Features::dir(c_l->groupfeature()->stemdir_i_));
  45         return true;
  46     }
  47     return Register_group_register::try_request(r_l);
  48 }
  49
  50
  51 IMPLEMENT_STATIC_NAME(Voice_group_registers);
  52
  53 void
  54 Voice_group_registers::do_print() const
  55 {
  56 #ifndef NPRINT
  57     mtor << "ID: " << group_id_str_<<"\n";
  58     mtor << "stopping at " << termination_mom_ << "\n";
  59     Register_group_register::do_print();
  60 #endif
  61 }
  62 void
  63 Voice_group_registers::add(Request_register*r_l)
  64 {
  65     Register_group_register::add(r_l);
  66     if (r_l->name() == Voice_registers::static_name()) {
  67         Voice_registers * vregs_l = (Voice_registers*)r_l;
  68         voice_regs_l_.push( vregs_l );
  69         Voice *v_l = vregs_l->voice_l_;
  70         termination_mom_ = termination_mom_ >? v_l -> last();
  71         mtor << "adding Voice_registers, now terminating at " <<
  72             termination_mom_<< "\n";
  73     }
  74 }
  75
  76 void
  77 Voice_group_registers::post_move_processing()
  78 {
  79     if ( get_staff_info().time_C_ ->when_ > termination_mom_ ){
  80         mtor << "Terminating voice_group\n";
  81         daddy_reg_l_->terminate_register(this);
  82     }
  83     Register_group_register::post_move_processing();
  84 }
  85
  86 Request_register *
  87 Voice_group_registers::get_register_p(Request_register *reg_l)
  88 {
  89      if (reg_l->name() == Voice_registers::static_name()) {
  90         for (int i=0; i <voice_regs_l_.size(); i++) {
  91             if (reg_l == voice_regs_l_[i])
  92                 voice_regs_l_.del(i);
  93         }
  94      }
  95      return Register_group_register::get_register_p(reg_l);
  96 }