ReadAppendStream.cc

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/*
 * ReadAppendStream.cc
 *
 * Smalltalk like class library for C++
 * Internal read and append stream.
 *
 * Copyright (c) 2006 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
 */
#include "stlib/ReadAppendStream.h"

#include "stlib/Character.h"
#include "stlib/String.h"
#include "stlib/WriteStream.h"

namespace Core {

ReadAppendStream::ReadAppendStream(SequenceableCollection *collection)
  : ReadStream(collection)
{
    writeStream = new WriteStream(collection);
}

/* Class-accessing protocol */
String *ReadAppendStream::className(void) const
{
    return new String("ReadAppendStream");
}

/* Accessing protocol */
void ReadAppendStream::commit(void)
{
    writeStream->commit();
}

void ReadAppendStream::flush(void)
{
    writeStream->flush();
}

void ReadAppendStream::nextPut(Object *object)
{
    writeStream->nextPut(object);
    read_limit = writeStream->position();
}

void ReadAppendStream::nextPut(const char object)
{
    nextPut(Character::value(object));
}

void ReadAppendStream::nextPutAll(const Collection *collection)
{
    writeStream->nextPutAll(collection);
    read_limit = writeStream->position();
}

void ReadAppendStream::nextPutAll(const char *string)
{
    nextPutAll(new String(string));
}

void ReadAppendStream::nextPutAll(const SequenceableCollection *collection,
                                  long size, long startIndex)
{
    writeStream->nextPutAll(collection, size, startIndex);
    read_limit = writeStream->position();
}

/* Positioning protocol */
void ReadAppendStream::position(long position)
{
    writeStream->position(position);
    ReadStream::position(position);
}

long ReadAppendStream::writePosition(void)
{
    return writeStream->position();
}

/* Status protocol */
void ReadAppendStream::close(void)
{
    writeStream->close();
    ReadStream::close();
}

/* Testing protocol */
bool ReadAppendStream::isWritable(void)
{
    return true;
}

}; /* namespace Core */

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