src/voicegroup.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
   9 #include "musicalrequest.hh"
  10 #include "voicegroup.hh"
  11 #include "register.hh"
  12 #include "textreg.hh"
  13 #include "stembeamreg.hh"
  14 #include "scriptreg.hh"
  15 #include "complexwalker.hh"
  16 #include "commandrequest.hh"
  17
  18 static int temp_id_count;
  19
  20 Voice_group_registers::Voice_group_registers(Complex_walker*w_l, String id)
  21 {
  22     walk_l_ = w_l;
  23     text_reg_=new Text_register(w_l);
  24     stem_beam_reg_= new Stem_beam_register(w_l);
  25     script_reg_ = new Script_register(w_l);
  26     if (id=="")
  27         id = __FUNCTION__ + String(temp_id_count++);
  28     group_id_str_ = id;
  29     dir_i_ = 0;
  30 }
  31
  32 Voice_group_registers::~Voice_group_registers()
  33 {
  34     delete text_reg_;
  35     delete stem_beam_reg_;
  36     delete script_reg_;
  37 }
  38
  39 void
  40 Voice_group_registers::pre_move_processing()
  41 {
  42     stem_beam_reg_->pre_move_processing();
  43     script_reg_->pre_move_processing();
  44     text_reg_->pre_move_processing();
  45 }
  46
  47 void
  48 Voice_group_registers::post_move_processing()
  49 {
  50     stem_beam_reg_->post_move_processing();
  51     text_reg_->post_move_processing();
  52     script_reg_->post_move_processing();
  53 }
  54
  55 bool
  56 Voice_group_registers::try_request(Request*r_l)
  57 {
  58     if (r_l->groupfeature()) {
  59         set_dir(r_l->groupfeature()->stemdir_i_);
  60         return true;
  61     }
  62     bool b = stem_beam_reg_->try_request(r_l);
  63     if (!b)
  64         b|= script_reg_->try_request(r_l);
  65     if (!b)
  66         b|=  text_reg_->try_request(r_l);
  67
  68     return b;
  69 }
  70
  71 void
  72 Voice_group_registers::acknowledge_element(Staff_elem_info i)
  73 {
  74     if (i.group_regs_l_!= this)
  75         return;
  76
  77     stem_beam_reg_->acknowledge_element(i);
  78     script_reg_->acknowledge_element(i);
  79     text_reg_->acknowledge_element(i);
  80 }
  81
  82 void
  83 Voice_group_registers::set_dir(int i)
  84 {
  85     stem_beam_reg_->set_dir(i);
  86     script_reg_->set_dir(i);
  87     text_reg_->set_dir(i);
  88
  89     Array<Voice_registers*> vr_arr (walk_l_->get_voice_regs(this));
  90     for (int j=0; j<vr_arr.size(); j++) {
  91         if (vr_arr[j])
  92             vr_arr[j]->set_dir(i);
  93 }
  94 }
  95 void
  96 Voice_group_registers::process_requests()
  97 {
  98     stem_beam_reg_->process_request();
  99     script_reg_->process_request();
 100     text_reg_->process_request();
 101 }
 102
 103
 104 bool
 105 Voice_group_registers::acceptable_request(Request*r)
 106 {
 107     return (r->stem() || r->beam() || r->text() || r->script() ||
 108             r->groupfeature());
 109 }