lily/note-head-side.cc

   1 /*
   2   note-head-side.cc --  implement Note_head_side
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9
  10 #include "note-head-side.hh"
  11
  12 void
  13 Note_head_side::add_support (Item*head_l)
  14 {
  15   if (support_l_arr_.find_l(head_l))
  16     return ;
  17   support_l_arr_.push (head_l);
  18   add_dependency (head_l);
  19 }
  20
  21 void
  22 Note_head_side::do_pre_processing ()
  23 {
  24   Interval x_int;
  25   for (int i=0; i < support_l_arr_.size(); i++)
  26     {
  27       Dimension_cache *common =
  28         common_group (support_l_arr_[i], X_AXIS);
  29
  30       Real x = support_l_arr_[i]->relative_coordinate (common, X_AXIS)
  31         - relative_coordinate (common, X_AXIS);
  32
  33       x_int.unite (x + support_l_arr_[i]->extent (X_AXIS));
  34     }
  35
  36   if (x_int.empty_b ())
  37     x_int = Interval(0,0);
  38
  39   translate_axis (-extent(X_AXIS)[-notehead_align_dir_] + x_int[notehead_align_dir_], X_AXIS);
  40 }
  41
  42 void
  43 Note_head_side::do_substitute_element_pointer (Score_element*o,Score_element*n)
  44 {
  45   if (Item* o_l = dynamic_cast <Item *> (o))
  46     support_l_arr_.substitute (o_l,dynamic_cast <Item *> (n));
  47 }
  48
  49 Note_head_side:: Note_head_side()
  50 {
  51   notehead_align_dir_ = LEFT;
  52 }
  53 bool
  54 Note_head_side::supported_b ()const
  55 {
  56   return support_l_arr_.size ();
  57 }