lily/staff-side.cc

   1 /*
   2   staff-side.cc -- implement Staff_side
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "staff-side.hh"
  10 #include "staff-sym.hh"
  11 #include "debug.hh"
  12
  13 void
  14 Staff_side::set_staffsym(Staff_symbol* s_l)
  15 {
  16     staff_sym_l_ = s_l;
  17 }
  18
  19 Staff_side::Staff_side(Staff_elem * elem_l)
  20 {
  21     elem_l_ = elem_l;
  22     dir_i_ =0;
  23     staff_sym_l_ =0;
  24     inside_staff_b_ =false;
  25 }
  26
  27
  28 Interval
  29 Staff_side::support_height() const return r;
  30 {
  31     for (int i=0; i < support_l_arr_.size(); i++)
  32         r.unite(support_l_arr_[i]->height());
  33 }
  34
  35 void
  36 Staff_side::add_support(Staff_elem*i)
  37 {
  38     support_l_arr_.push(i);
  39     elem_l_->add_dependency(i);
  40 }
  41
  42 int
  43 Staff_side::get_position_i()const
  44 {
  45     if (!staff_sym_l_)
  46         return 0;
  47     if (!dir_i_) {
  48         warning("Staff_side::get_position_i(): returning -20");
  49         return -20;
  50     }
  51
  52     Real inter_f = staff_sym_l_->inter_note_f();
  53     int staff_size_i = staff_sym_l_->steps_i();
  54     Real y=0;
  55     if (!inside_staff_b_) {
  56         y  = (dir_i_ > 0) ? staff_size_i + 2: -2;
  57         y *=inter_f;
  58         Interval v= support_height();
  59
  60         if (dir_i_ > 0) {
  61             y = y >? (v.max() + 2*inter_f);
  62         } else if (dir_i_ < 0) {
  63             y = y <? (v.min() - 2*inter_f);
  64         }
  65     } else {
  66         Interval v= support_height();
  67         y = v[dir_i_]  + 2*dir_i_*inter_f;      // ugh
  68     }
  69     return int(rint(Real(y)/inter_f)); // should ret a float?
  70 }
  71
  72 int
  73 Staff_side::get_position_i(Interval sym_dim) const
  74 {
  75     if (!staff_sym_l_)
  76         return 0;
  77    if (!dir_i_) {
  78         warning("Staff_side::get_position_i(): returning -20");
  79         return -20;
  80     }
  81
  82     Real inter_f = staff_sym_l_->inter_note_f();
  83
  84     int i= get_position_i();
  85     return i+ int(rint(- sym_dim[dir_i_] / inter_f));
  86 }