configuration/src/parametersfileloadersaver.cpp

/***************************************************************************
 *   Copyright (C) 2008 by Tomassino Ferrauto                              *
 *   t_ferrauto@yahoo.it                                                   *
 *                                                                         *
 *   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 "parametersfileloadersaver.h"
#include "configurationparameters.h"
#include <QtDebug>
#include <QFile>

namespace farsa {

bool ParametersFileLoaderSaver::load(QString filename, ConfigurationParameters& configParams, bool keepOld)
{
    // If prepareLoading hasn't been called before this function, returning false
    if (filename.isNull()) {
        return false;
    }

    // Opening the file
    QFile file(filename);

    // Checking we were able to open the file
    if (!file.open(QFile::ReadOnly | QFile::Text)) {
        qWarning() << "WARNING: Impossible to read data from " << filename;
        return false;
    }

    // First deleting all old properties if we have to
    if (!keepOld) {
        configParams.clearAll();
    }

    // Creating the textstream to load data
    QTextStream in(&file);

    // Loading file
    return loadParameters( in, configParams );
}

bool ParametersFileLoaderSaver::save(QString filename, const ConfigurationParameters& configParams, bool append)
{
    // If prepareSaving hasn't been called before this function, returning false
    if (filename.isNull()) {
        return false;
    }

    // Opening the file
    QFile file(filename);
    
    QIODevice::OpenMode openMode = QFile::WriteOnly | QFile::Text;
    if ( append ) {
        openMode |= QFile::Append;
    } else {
        openMode |= QFile::Truncate;
    }
    // Checking we were able to open the file
    if (!file.open(openMode)) {
        qWarning() << "WARNING: Impossible to write data to " << filename;
        return false;
    }

    // Creating the textstream to load data
    QTextStream out(&file);

    // Saving file
    return saveParameters( out, configParams );
}

} // end namespace farsa