/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

*

*

*

*/

#ifndef QSTMFILELOGGER_H_

#define QSTMFILELOGGER_H_

#include <qstmgesturedefs.h>

#include <QFile>

#include <QDebug>

#include <QString>

#include <QStringBuilder>

#define LOGFLUSH            QStm_FileLogger::flush()

#define LOGCLOSE            QStm_FileLogger::close()

#ifdef Q_OS_WIN

#define LOGARG()

#else

#define LOGARG(txt,parm...) {QStm_FileLogger::log(txt, parm);}

#endif

#define LOGTXT(txt)         {QStm_FileLogger::log("%s",txt);}

#define LOGERR(txt,err)     if (!err) {} else {LOGARG(txt, err);}

#define LOGCALL(exp)        {LOGARG("Calling \"%s\"", #exp); exp; LOGARG("Call to \"%s\" passed.", #exp);}

#define LOGENTER            LOGARG("%s start", __PRETTY_FUNCTION__)

#define LOGEXIT             LOGARG("%s end", __PRETTY_FUNCTION__)

#define LOGMEM(ptr)         LOGARG("%s [0x%x]", #ptr, (uint)ptr)

class QSTMGESTURELIB_EXPORT QStm_FileLogger

{

public:

	static void log(const QString& text);

	static void log(const char* fmt,...);

	static void close() { logger()->doClose(); }

	static void flush() { logger()->doFlush(); }

	static QStm_FileLogger* logger();

	static QIODevice* ioDevice() { return logger()->m_file; }

private:

    QStm_FileLogger();

    ~QStm_FileLogger();

    void doLog(const QString& text);

    void doLog(const char* text);

    void doClose() { m_file->close(); }

    void doFlush() { m_stream->flush(); }   

    QString getLogFileName();

private:

    QFile*                     m_file;    

    QTextStream*               m_stream;

    static QStm_FileLogger*    m_instance;

};

#endif /* QSTMFILELOGGER_H_ */