lily/engraver.cc

   1 /*
   2   engraver.cc -- implement Engraver
   3
   4   Sourcefile of GNU LilyPond musictypesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "music-list.hh"
  10 #include "musical-request.hh"
  11 #include "engraver.hh"
  12 #include "engraver-group.hh"
  13 #include "debug.hh"
  14
  15 void
  16 Engraver::post_move_processing()
  17 {
  18     if (status < CREATION_INITED) {
  19         do_creation_processing();
  20         status = CREATION_INITED;
  21     }
  22     if (status >= MOVE_INITED)
  23         return;
  24
  25     do_post_move_processing();
  26     status = MOVE_INITED;
  27 }
  28
  29 bool
  30 Engraver::try_request(Request * r)
  31 {
  32     if (status < MOVE_INITED)
  33         post_move_processing();
  34
  35     return do_try_request(r);
  36 }
  37
  38 void
  39 Engraver::process_requests()
  40 {
  41     if (status < PROCESSED_REQS)
  42         post_move_processing();
  43     else if (status >= PROCESSED_REQS)
  44         return;
  45
  46     status = PROCESSED_REQS;
  47     do_process_requests();
  48 }
  49
  50 void
  51 Engraver::pre_move_processing()
  52 {
  53     do_pre_move_processing();
  54     status = CREATION_INITED;
  55 }
  56
  57 void
  58 Engraver::fill_staff_info(Staff_info&)
  59 {
  60
  61 }
  62
  63 Scalar
  64 Engraver::get_feature(String t)
  65 {
  66     return daddy_grav_l_->get_feature(t);
  67 }
  68
  69 bool
  70 Engraver::do_try_request(Request*)
  71 {
  72     return false;
  73 }
  74
  75 Engraver::Engraver()
  76 {
  77     status = VIRGIN;
  78     daddy_grav_l_ = 0;
  79 }
  80
  81 void
  82 Engraver::announce_element(Score_elem_info i)
  83 {
  84     i.origin_grav_l_arr_.push(this);
  85     daddy_grav_l_->announce_element(i);
  86 }
  87
  88 void
  89 Engraver::typeset_element(Score_elem*p)
  90 {
  91     daddy_grav_l_->typeset_element(p);
  92 }
  93
  94 Paper_def*
  95 Engraver::paper()const
  96 {
  97     return daddy_grav_l_->paper();
  98 }
  99
 100 void
 101 Engraver::typeset_breakable_item(Item * nobreak_p)
 102 {
 103     daddy_grav_l_->typeset_breakable_item(nobreak_p);
 104 }
 105
 106 bool
 107 Engraver::contains_b(Engraver *grav_l)const
 108 {
 109     return this == grav_l;
 110 }
 111
 112 Staff_info
 113 Engraver::get_staff_info() const
 114 {
 115     return daddy_grav_l_->get_staff_info();
 116 }
 117
 118 void
 119 Engraver::print() const
 120 {
 121 #ifndef NPRINT
 122     mtor << "\n" << name() << " {";
 123     do_print();
 124     mtor << "}";
 125 #endif
 126 }
 127
 128 IMPLEMENT_STATIC_NAME(Engraver);
 129 IMPLEMENT_IS_TYPE_B(Engraver);
 130
 131 void
 132 Engraver::do_print() const
 133 {
 134 }
 135