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AUD_PingPongFactory.cpp

/*
 * $Id$
 *
 * ***** BEGIN LGPL LICENSE BLOCK *****
 *
 * Copyright 2009 Jörg Hermann Müller
 *
 * This file is part of AudaSpace.
 *
 * AudaSpace is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * AudaSpace is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with AudaSpace.  If not, see <http://www.gnu.org/licenses/>.
 *
 * ***** END LGPL LICENSE BLOCK *****
 */

#include "AUD_PingPongFactory.h"
#include "AUD_DoubleReader.h"
#include "AUD_ReverseFactory.h"

00030 AUD_PingPongFactory::AUD_PingPongFactory(AUD_IFactory* factory) :
            AUD_EffectFactory(factory) {}

00033 AUD_IReader* AUD_PingPongFactory::createReader()
{
      if(m_factory == 0)
            return 0;

      AUD_IReader* reader = m_factory->createReader();

      if(reader != 0)
      {
            AUD_IReader* reader2;
            AUD_ReverseFactory factory(m_factory);

            try
            {
                  reader2 = factory.createReader();
            }
            catch(AUD_Exception)
            {
                  reader2 = 0;
            }

            if(reader2 != 0)
            {
                  reader = new AUD_DoubleReader(reader, reader2);
                  AUD_NEW("reader")
            }
            else
            {
                  delete reader; AUD_DELETE("reader")
                  reader = 0;
            }
      }

      return reader;
}

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