lily/dots.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "dots.hh"
  21
  22 #include "item.hh"
  23 #include "output-def.hh"
  24 #include "font-interface.hh"
  25 #include "lookup.hh"
  26 #include "staff-symbol-referencer.hh"
  27 #include "international.hh"
  28
  29 MAKE_SCHEME_CALLBACK (Dots, print, 1);
  30 SCM
  31 Dots::print (SCM d)
  32 {
  33   Grob *sc = unsmob_grob (d);
  34   Stencil mol;
  35
  36   SCM c = sc->get_property ("dot-count");
  37
  38   if (scm_is_number (c))
  39     {
  40       SCM scm_style = sc->get_property ("style");
  41       string style ="";
  42       if (scm_is_symbol (scm_style))
  43         style = ly_symbol2string (scm_style);
  44       string idx =  "dots.dot" + style;
  45       Stencil d = Font_interface::get_default_font (sc)->find_by_name (idx);
  46       if (d.is_empty ())
  47         {
  48           sc->warning (_f ("dot `%s' not found", idx.c_str ()));
  49           return SCM_EOL;
  50         }
  51       Real dw = d.extent (X_AXIS).length ();
  52
  53       /*
  54         we need to add a real blank box, to assure that
  55         side-positioning doth not cancel the left-most padding.  */
  56
  57       /*
  58         TODO: this should  be handled by side-position padding.
  59       */
  60       mol = Lookup::blank (Box (Interval (0, 0),
  61                                 Interval (0, 0)));
  62
  63       for (int i = scm_to_int (c); i--;)
  64         {
  65           d.translate_axis (2 * dw, X_AXIS);
  66           mol.add_at_edge (X_AXIS, RIGHT, d, dw);
  67         }
  68     }
  69   return mol.smobbed_copy ();
  70 }
  71
  72 ADD_INTERFACE (Dots,
  73                "The dots to go with a notehead or rest.  @code{direction}"
  74                " sets the preferred direction to move in case of staff line"
  75                " collisions.  @code{style} defaults to undefined, which is"
  76                " normal 19th/20th century traditional style.  Set"
  77                " @code{style} to @code{vaticana} for ancient type dots.",
  78
  79                /* properties */
  80                "direction "
  81                "dot-count "
  82                "style "
  83                );