| 1 | /* This file is part of the KDE project |
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| 2 | SPDX-FileCopyrightText: 2007 Matthew Woehlke <mw_triad@users.sourceforge.net> |
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| 3 | |
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| 4 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 5 | */ |
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| 6 | |
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| 7 | /* |
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| 8 | * If you use KColorSpaces in your own KDE code, please drop me a line at |
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| 9 | * mw_triad@users.sourceforge.net, as I would like to track if people find it |
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| 10 | * useful. Thanks! |
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| 11 | */ |
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| 12 | |
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| 13 | #ifndef KCOLORSPACES_H |
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| 14 | #define KCOLORSPACES_H |
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| 15 | |
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| 16 | #include <QColor> |
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| 17 | |
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| 18 | namespace KColorSpaces |
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| 19 | { |
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| 20 | class KHCY |
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| 21 | { |
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| 22 | public: |
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| 23 | explicit KHCY(const QColor &); |
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| 24 | explicit KHCY(qreal h_, qreal c_, qreal y_, qreal a_ = 1.0); |
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| 25 | QColor qColor() const; |
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| 26 | qreal h, c, y, a; |
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| 27 | static qreal hue(const QColor &); |
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| 28 | static qreal chroma(const QColor &); |
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| 29 | static qreal luma(const QColor &); |
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| 30 | |
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| 31 | private: |
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| 32 | static qreal gamma(qreal); |
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| 33 | static qreal igamma(qreal); |
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| 34 | static qreal lumag(qreal, qreal, qreal); |
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| 35 | }; |
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| 36 | |
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| 37 | } |
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| 38 | |
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| 39 | #endif |
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| 40 | |
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