lily/script.cc

   1 /*
   2   script.cc -- implement Script
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8 #include "script-def.hh"
   9 #include "musical-request.hh"
  10 #include "paper-def.hh"
  11 #include "script.hh"
  12 #include "stem.hh"
  13 #include "molecule.hh"
  14 #include "lookup.hh"
  15
  16 void
  17 Script::do_print() const
  18 {
  19 #ifndef NPRINT
  20   specs_l_->print();
  21 #endif
  22 }
  23
  24 void
  25 Script::do_substitute_dependency (Score_elem*o,Score_elem*n)
  26 {
  27   Staff_side::do_substitute_dependency (o,n);
  28   if (o == stem_l_)
  29     {
  30       stem_l_ = n ? (Stem*)n->item() : 0;
  31     }
  32 }
  33
  34 void
  35 Script::set_stem (Stem*st_l)
  36 {
  37   stem_l_ = st_l;
  38   add_support (st_l);
  39 }
  40
  41
  42 Script::Script()
  43 {
  44   specs_l_ = 0;
  45   inside_staff_b_ = false;
  46   stem_l_ = 0;
  47   dir_ =  CENTER;
  48 }
  49
  50 void
  51 Script::set_default_dir()
  52 {
  53   int s_i=specs_l_->rel_stem_dir();
  54   if (s_i)
  55     {
  56       if (stem_l_)
  57         dir_ = stem_l_->dir_ * s_i;
  58       else
  59         {
  60           specs_l_->warning (_("Script needs stem direction"));
  61           dir_ = DOWN;
  62         }
  63     }
  64   else
  65     {
  66       dir_ =specs_l_->staff_dir();
  67     }
  68   assert (dir_);
  69 }
  70
  71
  72 Interval
  73 Script::do_width() const
  74 {
  75   return specs_l_->get_atom (paper(), dir_).extent ().x ();
  76 }
  77
  78 void
  79 Script::do_pre_processing()
  80 {
  81   if  (breakable_b_ && break_status_i() != 1)
  82     {
  83       transparent_b_ = true;
  84       set_empty (true);
  85     }
  86
  87   if (!dir_)
  88     set_default_dir();
  89 }
  90
  91 Interval
  92 Script::symbol_height() const
  93 {
  94   return specs_l_->get_atom (paper(), dir_).extent ().y ();
  95 }
  96
  97 Molecule*
  98 Script::brew_molecule_p() const
  99 {
 100   Real dx = paper()->note_width()/2;
 101
 102   Molecule*out = new Molecule (specs_l_->get_atom (paper(), dir_));
 103   out->translate_axis (y_, Y_AXIS);
 104   out->translate_axis (dx, X_AXIS);     // FIXME! ugh
 105   return out;
 106 }
 107
 108
 109 IMPLEMENT_IS_TYPE_B2(Script,Item,Staff_side);
 110
 111 int
 112 Script::compare (Script  *const&l1, Script *const&l2)
 113 {
 114   return l1->specs_l_->priority_i() - l2->specs_l_->priority_i ();
 115 }