/* $Id$ */

/*
 * Copyright (C) 2006 Richard Braun
 * 
 * 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
 */

#include <string>
#include <vector>

#include "mtxhistory.h"

using namespace std;

MtxHistory::MtxHistory()
{
  offset = strings.end();
}

void
MtxHistory::addString(const string &string)
{
  strings.push_back(string);
  offset = strings.end();
}

string
MtxHistory::getString() const
{
  if (offset != strings.end())
    return *offset;

  else
    return "";
}

void
MtxHistory::previousString()
{
  if (offset != strings.begin())
    offset--;
}

void
MtxHistory::nextString()
{
  if (offset != strings.end())
    offset++;
}