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/****************************************************************************
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** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
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** This file is part of the painting module of the Qt Toolkit.
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** This file may be distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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** Contact info@trolltech.com if any conditions of this licensing are
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
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#include "QtCore/qglobal.h"
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typedef unsigned int QRgb; // RGB triplet
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const QRgb RGB_MASK = 0x00ffffff; // masks RGB values
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Q_GUI_EXPORT inline int qRed(QRgb rgb) // get red part of RGB
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{ return ((rgb >> 16) & 0xff); }
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Q_GUI_EXPORT inline int qGreen(QRgb rgb) // get green part of RGB
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{ return ((rgb >> 8) & 0xff); }
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Q_GUI_EXPORT inline int qBlue(QRgb rgb) // get blue part of RGB
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{ return (rgb & 0xff); }
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Q_GUI_EXPORT inline int qAlpha(QRgb rgb) // get alpha part of RGBA
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{ return ((rgb >> 24) & 0xff); }
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Q_GUI_EXPORT inline QRgb qRgb(int r, int g, int b)// set RGB value
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{ return (0xff << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
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Q_GUI_EXPORT inline QRgb qRgba(int r, int g, int b, int a)// set RGBA value
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{ return ((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
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Q_GUI_EXPORT inline int qGray(int r, int g, int b)// convert R,G,B to gray 0..255
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{ return (r*11+g*16+b*5)/32; }
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Q_GUI_EXPORT inline int qGray(QRgb rgb) // convert RGB to gray 0..255
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{ return qGray(qRed(rgb), qGreen(rgb), qBlue(rgb)); }
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Q_GUI_EXPORT inline bool qIsGray(QRgb rgb)
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{ return qRed(rgb) == qGreen(rgb) && qRed(rgb) == qBlue(rgb); }