lily/line-group-group-engraver.cc

   1 /*
   2   line-group-engraver-group.cc -- implement Line_group_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "command-request.hh"
  10 #include "bar.hh"
  11 #include "debug.hh"
  12 #include "line-group-group-engraver.hh"
  13 #include "paper-column.hh"
  14 #include "axis-group-interface.hh"
  15 #include "spanner.hh"
  16
  17
  18 Line_group_engraver_group::Line_group_engraver_group()
  19 {
  20   staffline_p_ =0;
  21 }
  22
  23
  24 void
  25 Line_group_engraver_group::typeset_element (Score_element *elem)
  26 {
  27   if (!elem->parent_l (Y_AXIS))
  28     Axis_group_interface::add_element (staffline_p_, elem);
  29   Engraver_group_engraver::typeset_element (elem);
  30 }
  31
  32
  33 void
  34 Line_group_engraver_group::do_removal_processing()
  35 {
  36   Engraver_group_engraver::do_removal_processing ();
  37   Score_element *  it
  38     = unsmob_element (get_property (ly_symbol2scm ("currentCommandColumn")));
  39
  40   Pointer_group_interface (it, "bounded-by-me").add_element (staffline_p_);
  41   staffline_p_->set_bound(RIGHT,it);
  42   Engraver_group_engraver::typeset_element (staffline_p_);
  43   staffline_p_ = 0;
  44 }
  45
  46 void
  47 Line_group_engraver_group::do_creation_processing()
  48 {
  49   create_line_spanner ();
  50   Score_element *  it
  51     = unsmob_element (get_property (ly_symbol2scm ("currentCommandColumn")));
  52   staffline_p_->set_bound(LEFT,it);
  53   Pointer_group_interface (it, "bounded-by-me").add_element (staffline_p_);
  54
  55   Engraver::announce_element (staffline_p_,0);
  56 }
  57
  58 void
  59 Line_group_engraver_group::create_line_spanner ()
  60 {
  61   staffline_p_ = new Spanner (SCM_EOL);
  62   Axis_group_interface::set_interface (staffline_p_);
  63   Axis_group_interface::set_axes (staffline_p_, Y_AXIS,Y_AXIS);
  64 }
  65
  66
  67
  68
  69 ADD_THIS_TRANSLATOR(Line_group_engraver_group);
  70