/***********************************************************************************
 *                                                                                 *
 * Voreen - The Volume Rendering Engine                                            *
 *                                                                                 *
 * Copyright (C) 2005-2012 University of Muenster, Germany.                        *
 * Visualization and Computer Graphics Group <http://viscg.uni-muenster.de>        *
 * For a list of authors please refer to the file "CREDITS.txt".                   *
 *                                                                                 *
 * This file is part of the Voreen software package. Voreen is free software:      *
 * you can redistribute it and/or modify it under the terms of the GNU General     *
 * Public License version 2 as published by the Free Software Foundation.          *
 *                                                                                 *
 * Voreen 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 in the file   *
 * "LICENSE.txt" along with this file. If not, see <http://www.gnu.org/licenses/>. *
 *                                                                                 *
 * For non-commercial academic use see the license exception specified in the file *
 * "LICENSE-academic.txt". To get information about commercial licensing please    *
 * contact the authors.                                                            *
 *                                                                                 *
 ***********************************************************************************/

#ifndef VRN_VOLUMEHASH_H
#define VRN_VOLUMEHASH_H

#include "voreen/core/datastructures/volume/volumeram.h"
#include "voreen/core/datastructures/volume/volume.h"
#include "voreen/core/datastructures/volume/volumederiveddata.h"

#include <string>
#include <iostream>
#include <fstream>

namespace voreen {

class VRN_CORE_API VolumeHash : public VolumeDerivedData {
public:
    /// Empty default constructor required by VolumeDerivedData interface.
    VolumeHash();
    VolumeHash(const std::string& hash);

    virtual VolumeDerivedData* createFrom(const VolumeBase* handle) const;

    /// @see VolumeDerivedData
    virtual void serialize(XmlSerializer& s) const;

    /// @see VolumeDerivedData
    virtual void deserialize(XmlDeserializer& s);

    std::string getHash() const {
        return hash_;
    }

    void setHash(const std::string& hash) {
        if(hash.length() == 32)
            hash_ = hash;
        else
            LWARNINGC("voreen.VolumeHash", "Trying to set hash of invalid length!");
    }

protected:
    std::string hash_;
};

} // namespace voreen

#endif
