Engauge Digitizer 2
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ColorFilterStrategyHue.h
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1/******************************************************************************************************
2 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5 ******************************************************************************************************/
6
7#ifndef COLOR_FILTER_STRATEGY_HUE_H
8#define COLOR_FILTER_STRATEGY_HUE_H
9
11
14{
15 public:
18
20
21 virtual double pixelToZeroToOne (const QColor &pixel,
22 QRgb rgbBackground) const;
23 virtual int zeroToOneToValue (double s) const;
24
25};
26
27#endif // COLOR_FILTER_STRATEGY_HUE_H
Base class for strategy pattern whose subclasses process the different color filter settings modes (o...
Leaf class for hue strategy for ColorFilter.
ColorFilterStrategyHue()
Single constructor.
virtual int zeroToOneToValue(double s) const
Return the low value normalized to 0 to 1.
virtual double pixelToZeroToOne(const QColor &pixel, QRgb rgbBackground) const
Return a normalized value of 0 to 1 given input pixel.