lily/base-span-bar-engraver.cc

   1 /*
   2   span-bar-grav.cc -- implement Base_span_bar_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 "dimension-cache.hh"
  10 #include "lily-guile.hh"
  11 #include "span-bar.hh"
  12 #include "base-span-bar-engraver.hh"
  13
  14 Base_span_bar_engraver::Base_span_bar_engraver()
  15 {
  16   spanbar_p_ =0;
  17   use_priority_b_ = true;
  18 }
  19
  20 Span_bar*
  21 Base_span_bar_engraver::get_span_bar_p() const
  22 {
  23   return new Span_bar;
  24 }
  25
  26
  27 void
  28 Base_span_bar_engraver::acknowledge_element (Score_element_info i)
  29 {
  30   int depth = i.origin_trans_l_arr (this).size();
  31   if (depth > 1
  32       && dynamic_cast<Bar *> (i.elem_l_))
  33     {
  34       bar_l_arr_.push (dynamic_cast<Bar *> (i.elem_l_));
  35
  36       if (bar_l_arr_.size() >= 2 && !spanbar_p_)
  37         /*
  38           hmm, i do want a bracket with one staff some times, but not always
  39           if (bar_l_arr_.size() >= 1 && !spanbar_p_)
  40
  41           --jcn
  42         */
  43
  44         /*
  45
  46           use a property?  get_property ("singleStaffBracket"); ?
  47
  48           --hwn
  49          */
  50         {
  51           spanbar_p_ = get_span_bar_p();
  52           spanbar_p_->set_parent (bar_l_arr_[0], Y_AXIS);
  53
  54           /*
  55             UGH. UGH UUHGK GUHG G
  56            */
  57           String visnam =  String(name()) + "-visibility";
  58
  59           spanbar_p_->set_elt_property ("visibility-lambda",
  60                                         scm_eval (ly_symbol2scm (visnam.ch_C())));
  61
  62           if (use_priority_b_)
  63             {
  64               spanbar_p_->set_elt_property ("break-aligned", SCM_BOOL_T);
  65             }
  66           else
  67             {
  68               spanbar_p_->set_parent (bar_l_arr_[0], X_AXIS);
  69             }
  70
  71           announce_element (Score_element_info (spanbar_p_,0));
  72           if (!gh_string_p (spanbar_p_->get_elt_property ("glyph")))
  73             spanbar_p_-> set_elt_property ("glyph",
  74                                            bar_l_arr_[0]->get_elt_property ("glyph"));
  75         }
  76     }
  77 }
  78
  79 void
  80 Base_span_bar_engraver::do_pre_move_processing()
  81 {
  82   if (spanbar_p_)
  83     {
  84       for (int i=0; i < bar_l_arr_.size() ; i++)
  85         spanbar_p_->add_bar (bar_l_arr_[i]);
  86       typeset_element (spanbar_p_);
  87       spanbar_p_ =0;
  88     }
  89   bar_l_arr_.set_size (0);
  90 }
  91
  92
  93
  94 ADD_THIS_TRANSLATOR(Base_span_bar_engraver);
  95