qDebugStream.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2016, Institut fuer Technische Optik (ITO),
    Universitaet Stuttgart, Germany

    This file is part of itom.
  
    itom is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public Licence as published by
    the Free Software Foundation; either version 2 of the Licence, or (at
    your option) any later version.

    itom 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 Licence for more details.

    You should have received a copy of the GNU Library General Public License
    along with itom. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************** */

//################
//# qdebugstream.h  #
//################

#ifndef Q_DEBUG_STREAM_H
#define Q_DEBUG_STREAM_H

#include "../../common/typeDefs.h"
#include <iostream>
#include <qobject.h>

namespace ito {

class QDebugStream : public QObject, public std::basic_streambuf<char>
{
    Q_OBJECT

public:
    enum MsgStreamType
    {
        msgStreamOut = 1,
        msgStreamErr = 2,
        msgStreamIn = 3
    };

    QDebugStream(std::ostream &stream, ito::QDebugStream::MsgStreamType type);
    ~QDebugStream();

signals:
    void flushStream(QString, ito::QDebugStream::MsgStreamType); 
protected:

    virtual std::basic_streambuf<char>::int_type overflow(int_type v);

    virtual std::streamsize xsputn(const char *p, std::streamsize n);

private:
    std::ostream &m_stream;                     
    std::streambuf *m_old_buf;                  
    std::string m_string;                       
    ito::QDebugStream::MsgStreamType msg_type;  
};

}; // namespace ito

#endif