processOrganizer.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2020, 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/>.
*********************************************************************** */

#ifndef PROCESSORGANIZER_H
#define PROCESSORGANIZER_H

#include "../../common/sharedStructures.h"
#include "../global.h"

#include <qobject.h>
#include <qprocess.h>
#include <qhash.h>
#include <qsignalmapper.h>
#include <qstring.h>
#include <qpair.h>

namespace ito
{

class ProcessOrganizer : public QObject
{
    Q_OBJECT
public:
    ProcessOrganizer();
    ~ProcessOrganizer();

    inline QMultiHash< QString, QPair<QProcess*, bool> > getProcesses() { return m_processes; }
    QProcess* getFirstExistingProcess(const QString &name);
    QProcess* getProcess(const QString &name, bool tryToUseExistingProcess, bool &existingProcess, bool closeOnFinalize = false);

    QByteArray getStandardOutputBuffer( const QString &processKey ) const { return m_processStdOut[processKey]; }
    void clearStandardOutputBuffer( const QString &processKey ) { if(m_processStdOut.contains(processKey)) { m_processStdOut[processKey].clear(); } }

    bool bringWindowsOnTop(const QString &windowName);

    static QString getAbsQtToolPath(const QString &binaryName, bool *found = NULL);

protected:

    RetVal collectGarbage(bool forceToCloseAll = false);

private:
    QMultiHash< QString, QPair<QProcess*, bool> > m_processes; //keyName (assistant, designer...) -> (Process-Pointer, boolean deciding whether application should be closed on shutdown of itom or not)
    QMap< QString, QByteArray > m_processStdOut;


public slots:
    void processFinished ( int /*exitCode*/, QProcess::ExitStatus /*exitStatus*/ );
    void processError (QProcess::ProcessError /*error*/ );
    void readyReadStandardOutput();
};

} //end namespace ito

#endif