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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QRGB_H
#define QRGB_H
#include <QtCore/qglobal.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
typedef unsigned int QRgb; // RGB triplet
const QRgb RGB_MASK = 0x00ffffff; // masks RGB values
Q_GUI_EXPORT_INLINE int qRed(QRgb rgb) // get red part of RGB
{ return ((rgb >> 16) & 0xff); }
Q_GUI_EXPORT_INLINE int qGreen(QRgb rgb) // get green part of RGB
{ return ((rgb >> 8) & 0xff); }
Q_GUI_EXPORT_INLINE int qBlue(QRgb rgb) // get blue part of RGB
{ return (rgb & 0xff); }
Q_GUI_EXPORT_INLINE int qAlpha(QRgb rgb) // get alpha part of RGBA
{ return rgb >> 24; }
Q_GUI_EXPORT_INLINE QRgb qRgb(int r, int g, int b)// set RGB value
{ return (0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
Q_GUI_EXPORT_INLINE QRgb qRgba(int r, int g, int b, int a)// set RGBA value
{ return ((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
Q_GUI_EXPORT_INLINE int qGray(int r, int g, int b)// convert R,G,B to gray 0..255
{ return (r*11+g*16+b*5)/32; }
Q_GUI_EXPORT_INLINE int qGray(QRgb rgb) // convert RGB to gray 0..255
{ return qGray(qRed(rgb), qGreen(rgb), qBlue(rgb)); }
Q_GUI_EXPORT_INLINE bool qIsGray(QRgb rgb)
{ return qRed(rgb) == qGreen(rgb) && qRed(rgb) == qBlue(rgb); }
QT_END_NAMESPACE
QT_END_HEADER
#endif // QRGB_H
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