log.h

#ifndef LOG_H
#define LOG_H
#include <QFile>
#include <QDate>
#include <QCoreApplication>
#include <QTextStream>
#include <QDebug>
#include <QString>

#include "parameters.h"

namespace Utils {
typedef enum {INFO, ERROR, WARNING } TypeLog;

class Log
{
public:
    static Log &instance(TypeLog type=INFO);

    void write(const QString text);

    Log();

    friend Log &operator << (Log &logger, const QString& text) {
        logger.write(text);

        return logger;
    }
private:
    static Log* _instance;  
    static TypeLog _type;   

    QFile* _file; 

    QString head();

    QString typeLog2String(TypeLog type);
};
}
#endif // LOG_H