lily/include/type-swallow-translator.hh

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2009 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 #ifndef TYPESWALLOW_TRANSLATOR_HH
  21 #define TYPESWALLOW_TRANSLATOR_HH
  22
  23 #include "translator.hh"
  24
  25 /** eat a certain type of event
  26     (Duh, it's good for your skin)
  27 */
  28 class Type_swallow_translator : public Translator
  29 {
  30 protected:
  31   string swallow_string_;
  32   bool try_music (Music *);
  33 public:
  34   VIRTUAL_COPY_CONS (Translator);
  35 };
  36
  37 #define DECLARE_EVENT_SWALLOWER(TYPE)                                   \
  38   struct TYPE ## _swallow_translator : public Type_swallow_translator   \
  39   {                                                                     \
  40     TRANSLATOR_DECLARATIONS (TYPE ## _swallow_translator);              \
  41   };                                                                    \
  42   TYPE ## _swallow_translator ::TYPE ## _swallow_translator ()          \
  43   {                                                                     \
  44     swallow_string_ = #TYPE;                                            \
  45   }                                                                     \
  46   ADD_TRANSLATOR (TYPE ## _swallow_translator,                          \
  47                   "Swallow events of " #TYPE " type.",                  \
  48                   "",                                                   \
  49                   "general-music",                                      \
  50                   "",                                                   \
  51                   "",                                                   \
  52                   "");
  53
  54 #endif // TYPESWALLOW_TRANSLATOR_HH
  55