/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** GNU General Public License Usage | |
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****************************************************************************/ | |
#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 |