lily/tweak-engraver.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6
   7   LilyPond is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   LilyPond is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "engraver.hh"
  22
  23 #include "grob.hh"
  24 #include "stream-event.hh"
  25 #include "translator.icc"
  26
  27 class Tweak_engraver : public Engraver
  28 {
  29   TRANSLATOR_DECLARATIONS (Tweak_engraver);
  30
  31 protected:
  32   DECLARE_ACKNOWLEDGER (grob);
  33 };
  34
  35 Tweak_engraver::Tweak_engraver ()
  36 {
  37 }
  38
  39 void
  40 Tweak_engraver::acknowledge_grob (Grob_info info)
  41 {
  42   if (Stream_event *ev = info.event_cause ())
  43     {
  44       for (SCM s = ev->get_property ("tweaks");
  45            scm_is_pair (s); s = scm_cdr (s))
  46         {
  47           info.grob ()->set_property (scm_caar (s), scm_cdar (s));
  48         }
  49     }
  50 }
  51
  52 ADD_ACKNOWLEDGER (Tweak_engraver, grob);
  53 ADD_TRANSLATOR (Tweak_engraver,
  54                 /* doc */
  55                 "Read the @code{tweaks} property from the originating event,"
  56                 " and set properties.",
  57
  58                 /* create */
  59                 "",
  60
  61                 /* read */
  62                 "",
  63
  64                 /* write */
  65                 ""
  66                 );