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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef PROJECTMANAGER_USERFILEACCESSOR_H
#define PROJECTMANAGER_USERFILEACCESSOR_H
#include <QtCore/QVariantMap>
namespace ProjectExplorer {
class Project;
namespace Internal {
class UserFileVersionHandler;
}
class SettingsAccessor
{
public:
~SettingsAccessor();
static SettingsAccessor *instance();
QVariantMap restoreSettings(Project *project) const;
bool saveSettings(const Project *project, const QVariantMap &map) const;
private:
SettingsAccessor();
// Takes ownership of the handler!
void addVersionHandler(Internal::UserFileVersionHandler *handler);
// The relevant data from the settings currently in use.
class SettingsData
{
public:
SettingsData() : m_version(-1), m_usingBackup(false) {}
SettingsData(const QVariantMap &map) : m_version(-1), m_usingBackup(false), m_map(map) {}
void clear();
bool isValid() const;
int m_version;
bool m_usingBackup;
QVariantMap m_map;
QString m_fileName;
};
// The entity which actually reads/writes to the settings file.
class FileAccessor
{
public:
FileAccessor(const QByteArray &id,
const QString &defaultSuffix,
const QString &environmentSuffix,
bool envSpecific,
bool versionStrict);
bool readFile(Project *project, SettingsData *settings) const;
bool writeFile(const Project *project, const SettingsData *settings) const;
private:
void assignSuffix(const QString &defaultSuffix, const QString &environmentSuffix);
QString assembleFileName(const Project *project) const;
bool findNewestCompatibleSetting(SettingsData *settings) const;
QByteArray m_id;
QString m_suffix;
bool m_environmentSpecific;
bool m_versionStrict;
};
static bool verifyEnvironmentId(const QString &id);
QMap<int, Internal::UserFileVersionHandler *> m_handlers;
int m_firstVersion;
int m_lastVersion;
const FileAccessor m_userFileAcessor;
const FileAccessor m_sharedFileAcessor;
};
} // namespace ProjectExplorer
#endif // PROJECTMANAGER_USERFILEACCESSOR_H
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