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 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2006-01-03
  * Description : DImgLoader observer interface
  *
  * SPDX-FileCopyrightText: 2006-2012 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #ifndef DIGIKAM_DIMG_LOADER_OBSERVER_H
 #define DIGIKAM_DIMG_LOADER_OBSERVER_H
 
 // Qt includes
 
 #include <QtGlobal>
 
 // Local includes
 
 #include "digikam_export.h"
 
 namespace Digikam
 {
 
 class DImg;
 
 class DIGIKAM_EXPORT DImgLoaderObserver
 {
 
 public:
 
     DImgLoaderObserver()          = default;
     virtual ~DImgLoaderObserver() = default;
 
     /**
      * Posts progress information about image IO
      */
     virtual void progressInfo(float progress)
     {
         Q_UNUSED(progress);
     };
 
     /**
      * Queries whether the image IO operation shall be continued
      */
     virtual bool continueQuery()
     {
         return true;
     };
 
     /**
      * Return a relative value which determines the granularity, the frequency
      * with which the DImgLoaderObserver is checked and progress is posted.
      * Standard is 1.0. Values < 1 mean less granularity (fewer checks),
      * values > 1 mean higher granularity (more checks).
      */
     virtual float granularity()
     {
         return 1.0F;
     };
 
 private:
 
     Q_DISABLE_COPY(DImgLoaderObserver)
 };
 
 } // namespace Digikam
 
 #endif // DIGIKAM_DIMG_LOADER_OBSERVER_H