settings_manager.h

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#ifndef SETTINGSMANAGER_H
#define SETTINGSMANAGER_H
 
#include <QObject>
#include <QSettings>
#include <QString>
#include <QVariant>
#include <functional>
#include <qtmetamacros.h>
 
class SettingsManager : public QObject
{
    Q_OBJECT
 
public:
    explicit SettingsManager(const QString &settingPath,
                             const QString &defaultGroup = QString(),
                             const QString &defaultSubGroup = QString(),
                             QObject *parent = nullptr);
 
    QVariant getValue(const QString &name) const;
    QVariant getValue(const QString &name, const QString &group, const QString &subGroup = QString()) const;
    QVariant
    getValue(const QString &name, const QString &group, const QString &subGroup, const QVariant &defaultValue) const;
    void batchWrite(std::function<void(QSettings &)> batchWriteFunction);
 
    void sync();
 
protected:
    QString settingPath;
    QString defaultGroup;
    QString defaultSubGroup;
 
    QSettings getSettings() const;
 
    void setValue(const QVariant &value, const QString &name);
 
    void
    setValue(const QVariant &value, const QString &name, const QString &group, const QString &subGroup = QString());
 
    void deleteValue(const QString &name);
 
    void deleteValue(const QString &name, const QString &group, const QString &subGroup = QString());
};
 
#endif // SETTINGSMANAGER_H