ZoomTransition.h

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/******************************************************************************************************
 * (C) 2017 markummitchell@github.com. This file is part of Engauge Digitizer, which is released      *
 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission.     *
 ******************************************************************************************************/
 
#ifndef ZOOM_TRANSITION_H
#define ZOOM_TRANSITION_H
 
#include <QMap>
#include "ZoomFactor.h"
 
class ZoomTransition
{
public:
  ZoomTransition ();
 
  double mapToFactor (ZoomFactor zoomFactor) const;
  
  ZoomFactor zoomIn (ZoomFactor currentZoomFactor,
                     double m11,
                     double m22,
                     bool actionZoomFillIsChecked) const;
 
  ZoomFactor zoomOut (ZoomFactor currentZoomFactor,
                      double m11,
                      double m22,
                      bool actionZoomFillIsChecked) const;
 
private:
  QMap<ZoomFactor, double> m_zoomMapToFactor;
};
 
#endif // ZOOM_TRANSITION_H