processOrganizer.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2021, Institut für Technische Optik (ITO),
    Universität 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/>.
*********************************************************************** */
 
#pragma once
 
#include "../../common/sharedStructures.h"
#include "../global.h"
 
#include <qhash.h>
#include <qobject.h>
#include <qpair.h>
#include <qprocess.h>
#include <qsignalmapper.h>
#include <qstring.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:
    // keyName (assistant, designer...) -> (Process-Pointer, boolean deciding
    // whether application should be closed on shutdown of itom or not)
    QMultiHash<QString, QPair<QProcess*, bool>> m_processes;
    QMap<QString, QByteArray> m_processStdOut;
 
 
public slots:
    void processFinished(int /*exitCode*/, QProcess::ExitStatus /*exitStatus*/);
    void processError(QProcess::ProcessError /*error*/);
    void readyReadStandardOutput();
};
 
} // end namespace ito