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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/Model/Util/Backup.h
//! @brief Defines GUI::Util namespace.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2021
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_GUI_MODEL_UTIL_BACKUP_H
#define BORNAGAIN_GUI_MODEL_UTIL_BACKUP_H
#include "Base/Util/Assert.h"
#include "GUI/Model/Util/UtilXML.h"
#include <QXmlStreamReader>
namespace {
namespace Tag {
const QString Backup("Backup");
} // namespace Tag
} // namespace
namespace GUI::Util {
template <typename T> QByteArray createBackup(const T* t)
{
QByteArray backup;
QXmlStreamWriter w(&backup);
XML::writeTaggedElement(&w, Tag::Backup, *t);
return backup;
}
template <typename T> void restoreBackup(T* t, const QByteArray& backup)
{
QXmlStreamReader r(backup);
r.readNextStartElement();
ASSERT(r.name().toString() == Tag::Backup);
t->readFrom(&r);
}
template <typename T> void copyContents(const T* source, T* dest)
{
GUI::Util::restoreBackup(dest, GUI::Util::createBackup(source));
}
} // namespace GUI::Util
#endif // BORNAGAIN_GUI_MODEL_UTIL_BACKUP_H
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