lily/staff-side.cc

   1 /*
   2   staff-side.cc -- implement Staff_side
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "interval.hh"
  10 #include "paper-def.hh"
  11 #include "dimen.hh"
  12 #include "staff-side.hh"
  13 #include "staff-sym.hh"
  14 #include "debug.hh"
  15
  16
  17 Staff_side::Staff_side()
  18 {
  19    y_=0;
  20   sym_int_ = Interval (0,0);
  21   dir_ = CENTER;
  22   inside_staff_b_ = false;
  23 }
  24
  25
  26 Interval
  27 Staff_side::support_height() const
  28 {
  29   Interval y_int;
  30   for (int i=0; i < support_l_arr_.size(); i++)
  31     {
  32       Axis_group_element *common =
  33         common_group (support_l_arr_[i], Y_AXIS);
  34
  35       Real y = support_l_arr_[i]->relative_coordinate (common, Y_AXIS)
  36         -relative_coordinate (common,Y_AXIS);
  37
  38       y_int.unite (y + support_l_arr_[i]->height());
  39     }
  40
  41
  42   if (y_int.empty_b())
  43     {
  44       y_int = Interval (0,0);
  45     }
  46   return y_int;
  47 }
  48
  49 void
  50 Staff_side::add_support (Score_elem*i)
  51 {
  52   support_l_arr_.push (i);
  53   add_dependency (i);
  54 }
  55
  56 Real
  57 Staff_side::get_position_f() const
  58 {
  59   if (!dir_)
  60     {
  61       warning (_("Staff_side::get_position_i(): "
  62                "somebody forgot to set my vertical direction, returning -20"));
  63       return -20;
  64     }
  65
  66
  67   Real y=0;
  68   Real inter_f = paper()-> internote_f ();
  69
  70   Interval v= support_height();
  71   y = v[dir_]  + 2*dir_*inter_f;        // ugh
  72
  73   return y;
  74 }
  75
  76 Interval
  77 Staff_side::symbol_height() const
  78 {
  79   return Interval (0,0);
  80 }
  81
  82 void
  83 Staff_side::do_post_processing()
  84 {
  85   sym_int_ = symbol_height();
  86   y_ = get_position_f();
  87   if (dir_)
  88     y_ += - sym_int_[-dir_];
  89 }
  90
  91 void
  92 Staff_side::do_substitute_dependency (Score_elem*o, Score_elem*n)
  93 {
  94   support_l_arr_.unordered_substitute (o,n);
  95 }
  96
  97
  98 IMPLEMENT_IS_TYPE_B1(Staff_side, Score_elem);