/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
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**
**
** GNU Lesser General Public License Usage
**
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** License version 2.1 as published by the Free Software Foundation and
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** Please review the following information to ensure the GNU Lesser General
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** rights. These rights are described in the Nokia Qt LGPL Exception
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**
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#ifndef SETTINGSUTILS_H
#define SETTINGSUTILS_H

#include <QSettings>
#include <QString>
#include <QStringList>
#include <QVariant>

namespace Utils {

template <class SettingsClassT>
void fromSettings(const QString &postFix,
                  const QString &category,
                  const QSettings *s,
                  SettingsClassT *obj)
{
    QVariantMap map;
    const QStringList &keys = s->allKeys();
    QStringList::const_iterator constIter;
    for (constIter=keys.constBegin(); constIter!=keys.constEnd(); ++constIter)
        map.insert(*constIter, s->value(*constIter));

    QString group = postFix;
    if (!category.isEmpty())
        group.insert(0, category);
    group += QLatin1Char('/');
    obj->fromMap(group, map);
}

template <class SettingsClassT>
void toSettings(const QString &postFix,
                const QString &category,
                QSettings *s,
                const SettingsClassT *obj)
{
    QString group = postFix;
    if (!category.isEmpty())
        group.insert(0, category);
    group += QLatin1Char('/');

    QVariantMap map;
    obj->toMap(group, &map);
    QVariantMap::const_iterator it = map.constBegin();
    for (; it != map.constEnd(); ++it)
        s->setValue(it.key(), it.value());
}

} // Utils

#endif // SETTINGSUTILS_H
