lily/script.cc

   1 /*
   2   script.cc -- implement Script
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.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_p_->print ();
  21 #endif
  22 }
  23
  24 void
  25 Script::do_substitute_dependency (Score_element*o,Score_element*n)
  26 {
  27   Staff_side::do_substitute_dependency (o,n);
  28   if (o == stem_l_)
  29     {
  30       stem_l_ = dynamic_cast<Stem *> (n);
  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   axis_ = Y_AXIS;
  45   specs_p_ = 0;
  46   stem_l_ = 0;
  47   postbreak_only_b_ = true;
  48   dir_ =  CENTER;
  49 }
  50
  51 void
  52 Script::set_default_dir ()
  53 {
  54   int s_i=specs_p_->rel_stem_dir ();
  55   if (s_i)
  56     {
  57       if (stem_l_)
  58         dir_ = Direction (stem_l_->dir_ * s_i);
  59       else
  60         {
  61           specs_p_->warning (_ ("script needs stem direction"));
  62           dir_ = DOWN;
  63         }
  64     }
  65   else
  66     {
  67       dir_ =specs_p_->staff_dir ();
  68     }
  69   assert (dir_);
  70 }
  71
  72
  73 Interval
  74 Script::do_width () const
  75 {
  76   return specs_p_->get_atom (paper (), dir_).extent ().x ();
  77 }
  78
  79 void
  80 Script::do_pre_processing ()
  81 {
  82   Staff_side::do_pre_processing ();
  83   if (breakable_b_ && postbreak_only_b_ && (break_status_dir () != RIGHT))
  84     {
  85       transparent_b_ = true;
  86       set_empty (true);
  87     }
  88
  89   if (axis_ == Y_AXIS && !dir_)
  90     set_default_dir ();
  91 }
  92
  93 Interval
  94 Script::symbol_height () const
  95 {
  96   return specs_p_->get_atom (paper (), dir_).extent ().y ();
  97 }
  98
  99 Interval
 100 Script::symbol_width () const
 101 {
 102   return specs_p_->width (paper ());
 103 }
 104
 105 Molecule*
 106 Script::brew_molecule_p () const
 107 {
 108   Real dx =0.;
 109
 110   Molecule*mol_p = new Molecule (specs_p_->get_atom (paper (), dir_));
 111   /*
 112     ugh, staccato dots are not centred between stafflines (how?)?
 113   */
 114   Real correct =0.0;
 115   if (axis_ == Y_AXIS){
 116     dx =  paper ()->note_width ()/2;
 117     correct = - (Real)dir_ * 2.0 * paper ()->rule_thickness ();
 118     mol_p->translate_axis (dx, X_AXIS); // FIXME! ugh
 119   }
 120
 121   mol_p->translate_axis (coordinate_offset_f_ + correct, axis_);
 122
 123   return mol_p;
 124 }
 125
 126
 127
 128
 129 int
 130 Script::compare (Script  *const&l1, Script *const&l2)
 131 {
 132   return l1->specs_p_->priority_i() - l2->specs_p_->priority_i ();
 133 }
 134
 135 Script::~Script ()
 136 {
 137   delete specs_p_;
 138 }
 139
 140 Script::Script (Script const&s)
 141   : Item (s), Staff_side(s)
 142 {
 143   specs_p_ = s.specs_p_ ? s.specs_p_->clone (): 0;
 144   stem_l_ =s.stem_l_;
 145   postbreak_only_b_ = s.postbreak_only_b_;
 146 }
 147