lily/dots.cc

   1 /*
   2   dots.cc -- implement Dots
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "dots.hh"
  10 #include "molecule.hh"
  11 #include "paper-def.hh"
  12 #include "lookup.hh"
  13 #include "staff-symbol-referencer.hh"
  14 #include "directional-element-interface.hh"
  15
  16 Dots::Dots ()
  17 {
  18   set_elt_property ("dot-count", gh_int2scm (0));
  19 }
  20
  21 void
  22 Dots::do_post_processing ()
  23 {
  24   SCM d= get_elt_property ("dot-count");
  25   if (!gh_number_p (d) || !gh_scm2int (d))
  26     {
  27       set_elt_property ("transparent", SCM_BOOL_T);
  28       set_empty (X_AXIS);
  29       set_empty (Y_AXIS);
  30     }
  31   else
  32     {
  33       if (!directional_element (this).get ())
  34         directional_element (this).set (UP);
  35
  36       Staff_symbol_referencer_interface si (this);
  37       int p = int (si.position_f ());
  38       if (!(p % 2))
  39         si.set_position (p  + directional_element (this).get ());
  40     }
  41 }
  42 Molecule*
  43 Dots::do_brew_molecule_p () const
  44 {
  45   Molecule *out = new Molecule;
  46   Molecule fill = lookup_l ()->fill (Box (Interval (0,0),
  47                                           Interval (0,0)));
  48   out->add_molecule (fill);
  49
  50   Molecule d = lookup_l ()->afm_find (String ("dots-dot"));
  51
  52   Real dw = d.dim_[X_AXIS].length ();
  53   d.translate_axis (-dw, X_AXIS);
  54
  55
  56   for (int i = gh_scm2int (get_elt_property ("dot-count")); i--; )
  57     {
  58       d.translate_axis (2*dw,X_AXIS);
  59       out->add_molecule (d);
  60     }
  61
  62   return out;
  63 }
  64
  65
  66