qgschunkqueuejob.h

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/***************************************************************************
  qgschunkqueuejob.h
  --------------------------------------
  Date                 : July 2017
  Copyright            : (C) 2017 by Martin Dobias
  Email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSCHUNKQUEUEJOB_H
#define QGSCHUNKQUEUEJOB_H

 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the QGIS API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
 
class QgsChunkNode;
 
namespace Qt3DCore
{
  class QEntity;
}
 
#define SIP_NO_FILE
 
#include <QObject>

class QgsChunkQueueJob : public QObject
{
    Q_OBJECT
  public:
    QgsChunkQueueJob( QgsChunkNode *node );

    virtual void start() = 0;

    QgsChunkNode *chunk() { return mNode; }

    virtual void cancel();

    bool isFinished() const;
 
  signals:
    void finished();
 
  protected:
    QgsChunkNode *mNode = nullptr;
    bool mFinished = false;
};

class QgsChunkQueueJobFactory
{
  public:
    virtual ~QgsChunkQueueJobFactory() = default;

    virtual QgsChunkQueueJob *createJob( QgsChunkNode *chunk ) = 0;
};

 
#endif // QGSCHUNKQUEUEJOB_H