platformtools.h

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/*****************************************************************************
 * Copyright 2016-2017 Karolin Stange, Christoph Wick, and Haye Hinrichsen
 *
 * This file is part of JustIntonation.
 *
 * JustIntonation is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * JustIntonation 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 General Public License 
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along 
 * with JustIntonation. If not, see http://www.gnu.org/licenses/.
 *****************************************************************************/

#ifndef PLATFORMTOOLS_H
#define PLATFORMTOOLS_H

#include <memory>
#include <assert.h>

#include <QStorageInfo>

class Application;


class PlatformTools
{
protected:
    PlatformTools() {}

public:


    static PlatformTools &getSingleton()
    {
        assert(getPointerToInstance());
        return *getPointerToInstance();
    }


    virtual void init (Application &application) {(void)application;}



    virtual void disableScreensaver() {}



    virtual void enableScreensaver() {}


    //-------------------------------------------------------------------------
    //                        Determine free disk space
    //-------------------------------------------------------------------------

    virtual qint64 getFreeDiskSpace(const QString &path)
    {
        return QStorageInfo(path).bytesTotal();
    }


//=================================================================================

public:


    static std::unique_ptr<PlatformTools> &getPointerToInstance()
    {
        static std::unique_ptr<PlatformTools> mInstance(new PlatformTools);
        return mInstance;
    }
};


template <class T>
class PlatformToolsInstanciator {
public:
    friend class PlatformTools;
    PlatformToolsInstanciator()
    {
        PlatformTools::getPointerToInstance().reset(new T());
    }
};

#endif // PLATFORMTOOLS_H