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 "plist.hh"
  10 #include "musicalrequest.hh"
  11 #include "voicegroup.hh"
  12 #include "register.hh"
  13 #include "textreg.hh"
  14 #include "stembeamreg.hh"
  15 #include "scriptreg.hh"
  16 #include "complexwalker.hh"
  17 #include "commandrequest.hh"
  18
  19 static int temp_id_count;
  20
  21 Voice_group_registers::Voice_group_registers(Complex_walker*w_l, String id)
  22 {
  23     walk_l_ = w_l;
  24     text_reg_=new Text_register(w_l);
  25     stem_beam_reg_= new Stem_beam_register(w_l);
  26     script_reg_ = new Script_register(w_l);
  27     if (id=="")
  28         id = __FUNCTION__ + String(temp_id_count++);
  29     group_id_str_ = id;
  30     dir_i_ = 0;
  31 }
  32
  33 Voice_group_registers::~Voice_group_registers()
  34 {
  35     delete text_reg_;
  36     delete stem_beam_reg_;
  37     delete script_reg_;
  38 }
  39
  40 void
  41 Voice_group_registers::pre_move_processing()
  42 {
  43     stem_beam_reg_->pre_move_processing();
  44     script_reg_->pre_move_processing();
  45     text_reg_->pre_move_processing();
  46 }
  47
  48 void
  49 Voice_group_registers::post_move_processing()
  50 {
  51     stem_beam_reg_->post_move_processing();
  52     text_reg_->post_move_processing();
  53     script_reg_->post_move_processing();
  54 }
  55
  56 bool
  57 Voice_group_registers::try_request(Request*r_l)
  58 {
  59     if (r_l->groupfeature()) {
  60         set_dir(r_l->groupfeature()->stemdir_i_);
  61         return true;
  62     }
  63     bool b = stem_beam_reg_->try_request(r_l);
  64     if (!b)
  65         b|= script_reg_->try_request(r_l);
  66     if (!b)
  67         b|=  text_reg_->try_request(r_l);
  68
  69     return b;
  70 }
  71
  72 void
  73 Voice_group_registers::acknowledge_element(Staff_elem_info i)
  74 {
  75     if (i.group_regs_l_!= this)
  76         return;
  77
  78     stem_beam_reg_->acknowledge_element(i);
  79     script_reg_->acknowledge_element(i);
  80     text_reg_->acknowledge_element(i);
  81 }
  82
  83 void
  84 Voice_group_registers::set_dir(int i)
  85 {
  86     stem_beam_reg_->set_dir(i);
  87     script_reg_->set_dir(i);
  88     text_reg_->set_dir(i);
  89
  90     Array<Voice_registers*> vr_arr (walk_l_->get_voice_regs(this));
  91     for (int j=0; j<vr_arr.size(); j++) {
  92         if (vr_arr[j])
  93             vr_arr[j]->set_dir(i);
  94 }
  95 }
  96 void
  97 Voice_group_registers::process_requests()
  98 {
  99     stem_beam_reg_->process_request();
 100     script_reg_->process_request();
 101     text_reg_->process_request();
 102 }
 103
 104
 105 bool
 106 Voice_group_registers::acceptable_request(Request*r)
 107 {
 108     return (r->stem() || r->beam() || r->text() || r->script() ||
 109             r->groupfeature());
 110 }