worker.h

/*
    This file is part of Cute Chess.
 
    Cute Chess 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.
 
    Cute Chess 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 Cute Chess.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef WORKER_H
#define WORKER_H
 
#include <QObject>
#include <QRunnable>
#include <QTime>
#include <QString>
 
class LIB_EXPORT Worker : public QObject, public QRunnable
{
    Q_OBJECT
 
    public:
        explicit Worker(const QString& title);
        virtual ~Worker();
        QTime startTime() const;
        QString title() const;
 
        // Inherited from QRunnable
        void run() override;
 
    signals:
        void started();
        void progressChanged(int value);
        void statusChanged(const QString& statusMessage);
        void cancelled();
        void finished();
        void error(int error);
 
    public slots:
        void cancel();
 
    protected:
        virtual void work() = 0;
        bool cancelRequested() const;
 
    private:
        bool m_cancel;
        QString m_title;
        QTime m_startTime;
};
 
#endif // WORKER_H