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kcolorspaces.h

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00001 /* This file is part of the KDE project
00002  * Copyright (C) 2007 Matthew Woehlke <mw_triad@users.sourceforge.net>
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public License
00015  * along with this library; see the file COPYING.LIB.  If not, write to
00016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018  */
00019 
00020 /*
00021  * If you use KColorSpaces in your own KDE code, please drop me a line at
00022  * mw_triad@users.sourceforge.net, as I would like to track if people find it
00023  * useful. Thanks!
00024  */
00025 
00026 #ifndef KCOLORSPACES_H
00027 #define KCOLORSPACES_H
00028 
00029 #include <QtGui/QColor>
00030 
00031 namespace KColorSpaces
00032 {
00033 
00034 class KHSL
00035 {
00036 public:
00037     explicit KHSL(const QColor&);
00038     explicit KHSL(qreal h_, qreal s_, qreal l_, qreal a_ = 1.0);
00039     QColor qColor() const;
00040     qreal h, s, l, a;
00041 private:
00042 };
00043 
00044 class KHCY
00045 {
00046 public:
00047     explicit KHCY(const QColor&);
00048     explicit KHCY(qreal h_, qreal c_, qreal y_, qreal a_ = 1.0);
00049     QColor qColor() const;
00050     qreal h, c, y, a;
00051     static qreal luma(const QColor&);
00052 private:
00053     static qreal gamma(qreal);
00054     static qreal igamma(qreal);
00055     static qreal lumag(qreal, qreal, qreal);
00056 };
00057 
00058 }
00059 
00060 #endif // KCOLORUTILS_H
00061 // kate: space-indent on; indent-width 4; replace-tabs on; auto-insert-doxygen on;

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