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SFCPathFactory.h

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/*
 * @(#)include/SFCPathFactory.h  1.0  2002-08-27 16:20
 *
 * Copyright (C)  2002  Daniel Léonard
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef _SFC_PATH_FACTORY_H_
#define _SFC_PATH_FACTORY_H_

#include <stdexcept>

namespace halftoner
{
   class SFCPath;

   class SFCPathFactory
   {
      public:
         class SizeMnemonic
         {
            protected:
               SizeMnemonic() throw();

            public:
               virtual ~SizeMnemonic() throw();


               virtual SFCPath* operator()() const throw() = 0;
         };

      private:
         class SizeMnemonic32 : public SizeMnemonic
         {
            public:

               SFCPath* operator()() const throw();
         };

         class SizeMnemonic64 : public SizeMnemonic
         {
            public:

               SFCPath* operator()() const throw();
         };

         class SizeMnemonic128 : public SizeMnemonic
         {
            public:

               SFCPath* operator()() const throw();
         };

         class SizeMnemonic256 : public SizeMnemonic
         {
            public:

               SFCPath* operator()() const throw();
         };

         class SizeMnemonic512 : public SizeMnemonic
         {
            public:

               SFCPath* operator()() const throw();
         };


         static const SFCPathFactory::SizeMnemonic32 sfc32;
         static const SFCPathFactory::SizeMnemonic64 sfc64;
         static const SFCPathFactory::SizeMnemonic128 sfc128;
         static const SFCPathFactory::SizeMnemonic256 sfc256;
         static const SFCPathFactory::SizeMnemonic512 sfc512;

      public:
         static const SFCPathFactory::SizeMnemonic& SFC32;
         static const SFCPathFactory::SizeMnemonic& SFC64;
         static const SFCPathFactory::SizeMnemonic& SFC128;
         static const SFCPathFactory::SizeMnemonic& SFC256;
         static const SFCPathFactory::SizeMnemonic& SFC512;

      private:

         SFCPathFactory() throw();
         SFCPathFactory(const SFCPathFactory&) throw();
         SFCPathFactory operator=(const SFCPathFactory) throw();

      public:
         ~SFCPathFactory() throw();


         static SFCPath* getInstance(const SFCPathFactory::SizeMnemonic& mnemonic) throw();
   };

}

#endif   /* #ifndef _SFC_PATH_FACTORY_H_ */

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