ColorFilterStrategyAbstractBase.h

Go to the documentation of this file.

/******************************************************************************************************
 * (C) 2014 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 COLOR_FILTER_STRATEGY_ABSTRACT_BASE_H
#define COLOR_FILTER_STRATEGY_ABSTRACT_BASE_H
 
#include <QRgb>
#include <QString>
 
class ColorFilter;
class QColor;
class QTextStream;
 
class ColorFilterStrategyAbstractBase
{
 public:
  ColorFilterStrategyAbstractBase();
 
  virtual ~ColorFilterStrategyAbstractBase();
 
  virtual double pixelToZeroToOne  (const QColor &pixel,
                                    QRgb rgbBackground) const = 0;
 
  virtual int zeroToOneToValue (double s) const = 0;
 
};
 
#endif // COLOR_FILTER_STRATEGY_ABSTRACT_BASE_H