lily/simple-music-iterator.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2000--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 "simple-music-iterator.hh"
  21
  22 #include "music.hh"
  23 #include "input.hh"
  24
  25 Simple_music_iterator::Simple_music_iterator ()
  26   : Music_iterator ()
  27 {
  28   last_processed_mom_ = -1;
  29 }
  30
  31 bool
  32 Simple_music_iterator::ok ()const
  33 {
  34   return last_processed_mom_ < music_get_length ();
  35 }
  36
  37 /*
  38   TODO: remove last_processed_mom_, and the complete shit.  We should
  39   only process a simple-music once, and that is at its start.
  40
  41   Engravers can detect and event the end-moments to be processed as
  42   well.
  43 */
  44 Moment
  45 Simple_music_iterator::pending_moment ()const
  46 {
  47   if (last_processed_mom_ < Moment (0))
  48     return Moment (0);
  49   else
  50     return music_get_length ();
  51 }
  52
  53 void
  54 Simple_music_iterator::process (Moment m)
  55 {
  56   /*
  57     don't do report_event (), since it would make the function useless for
  58     base classes
  59   */
  60
  61   last_processed_mom_ = m;
  62 }
  63
  64 IMPLEMENT_CTOR_CALLBACK (Simple_music_iterator);