lily/staff-margin-engraver.cc

   1 /*
   2   staff-margin-engraver.cc -- implement Staff_margin_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1998--1999 Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "staff-margin-engraver.hh"
  10 #include "bar.hh"
  11 #include "timing-translator.hh"
  12 #include "text-item.hh"
  13 #include "side-position-interface.hh"
  14
  15 ADD_THIS_TRANSLATOR (Staff_margin_engraver);
  16
  17 Staff_margin_engraver::Staff_margin_engraver ()
  18 {
  19   axis_ = X_AXIS;
  20   type_ = "margin";
  21   visibility_lambda_ = ly_eval_str ("postbreak-only-visibility");
  22 }
  23
  24
  25 /*
  26     TODO
  27
  28     should be able to set whole paragraph (multiple lines, center) to
  29     left (right?) of staff, e.g.:
  30                     ______
  31                    |_______
  32       2 Clarinetti |________
  33          (Bb)      |___________
  34                    |______________
  35 */
  36 void
  37 Staff_margin_engraver::acknowledge_element (Score_element_info inf)
  38 {
  39   Item *i = cast_to_interesting_item (inf.elem_l_);
  40   if (!i || inf.origin_trans_l_arr_.size() != 1)
  41     return;
  42
  43
  44   SCM long_name = get_property ("instrument", 0);
  45   SCM short_name = get_property ("instr", 0);
  46
  47   if (now_mom () > Moment (0))
  48     long_name = short_name;
  49
  50   if (gh_string_p (long_name))
  51     {
  52       create_items (0);
  53       text_p_->text_str_ = ly_scm2string (long_name);
  54       text_p_->set_elt_property ("direction", gh_int2scm (LEFT));
  55       Bar_script_engraver::attach_script_to_item (i);
  56
  57       /*
  58     UGH. ignores font size settings.
  59    */
  60       Interval iv(text_p_->extent (Y_AXIS));
  61       text_p_->translate_axis (- iv.center (),  Y_AXIS);
  62     }
  63 }
  64