EncodedStream.h

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/*
 * EncodedStream.h
 *
 * Smalltalk like class library for C++
 * Stream with encoding translation capability. Header.
 *
 * Copyright (c) 2004-6 Milan Cermak
 */
/*
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __ENCODEDSTREAM_H
#define __ENCODEDSTREAM_H

#include <stlib/StreamDecorator.h>

namespace Core {

class Character;
class SequenceableCollection;
class StreamEncoder;
class String;

class EncodedStream : public StreamDecorator
{
  protected:
    StreamEncoder *encoder;
    Character *_replacement;

  public:
    EncodedStream(Stream *stream, StreamEncoder *encoder);

    /* Class-accessing protocol */
    virtual String *className(void) const;

    /* Instance creation protocol */
    static EncodedStream *on(String *encoding, Stream *stream);

    /* Initialize protocol */
    virtual void replacementCharacter(Character *ch);
    virtual void bigEndian(void);
    virtual void littleEndian(void);

    /* Accessing protocol */
    virtual Object *next(void);
    virtual SequenceableCollection *next(long items)
      { return Stream::next(items); }
    virtual SequenceableCollection *next(long items, SequenceableCollection *newColl, long index)
      { return Stream::next(items, newColl, index); }
    virtual void nextPut(Object *object);
    virtual void nextPut(const char object)
      { Stream::nextPut(object); }

    /* Testing protocol */
    virtual bool isBinary(void);

  protected:
    /* Private protocol */
    virtual SequenceableCollection *contentSpeciesFor(long items);
};

};

#endif /* __ENCODEDSTREAM_H */

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