kde-workspace/phonon/kcm/qsettingsgroup_p.h
2014-11-15 04:16:00 +02:00

89 lines
2.6 KiB
C++

/* This file is part of the KDE project
Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) version 3.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef PHONON_QSETTINGSGROUP_P_H
#define PHONON_QSETTINGSGROUP_P_H
#include <QtCore/QSettings>
#include <QtCore/QString>
#include <QtCore/QVariant>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace Phonon
{
class QSettingsGroup
{
public:
inline QSettingsGroup(QSettings *settings, const QString &name)
: m_mutableSettings(settings),
m_settings(settings),
m_group(name + QLatin1Char('/'))
{
}
inline QSettingsGroup(const QSettings *settings, const QString &name)
: m_mutableSettings(0),
m_settings(settings),
m_group(name + QLatin1Char('/'))
{
}
template<typename T>
inline T value(const QString &key, const T &def) const
{
return qvariant_cast<T>(value(key, qVariantFromValue(def)));
}
inline QVariant value(const QString &key, const QVariant &def) const
{
return m_settings->value(m_group + key, def);
}
template<typename T>
inline void setValue(const QString &key, const T &value)
{
Q_ASSERT(m_mutableSettings);
m_mutableSettings->setValue(m_group + key, qVariantFromValue(value));
}
inline void removeEntry(const QString &key)
{
Q_ASSERT(m_mutableSettings);
m_mutableSettings->remove(m_group + key);
}
bool hasKey(const QString &key) const
{
return m_settings->contains(m_group + key);
}
private:
QSettings *const m_mutableSettings;
const QSettings *const m_settings;
QString m_group;
};
} // namespace Phonon
QT_END_NAMESPACE
QT_END_HEADER
#endif // PHONON_QSETTINGSGROUP_P_H