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40 | ****************************************************************************/ |
41 | |
42 | #ifndef QRGB_H |
43 | #define QRGB_H |
44 | |
45 | #include <QtCore/qglobal.h> |
46 | |
47 | QT_BEGIN_HEADER |
48 | |
49 | QT_BEGIN_NAMESPACE |
50 | |
51 | QT_MODULE(Gui) |
52 | |
53 | typedef unsigned int QRgb; // RGB triplet |
54 | |
55 | const QRgb RGB_MASK = 0x00ffffff; // masks RGB values |
56 | |
57 | Q_GUI_EXPORT_INLINE int qRed(QRgb rgb) // get red part of RGB |
58 | { return ((rgb >> 16) & 0xff); } |
59 | |
60 | Q_GUI_EXPORT_INLINE int qGreen(QRgb rgb) // get green part of RGB |
61 | { return ((rgb >> 8) & 0xff); } |
62 | |
63 | Q_GUI_EXPORT_INLINE int qBlue(QRgb rgb) // get blue part of RGB |
64 | { return (rgb & 0xff); } |
65 | |
66 | Q_GUI_EXPORT_INLINE int qAlpha(QRgb rgb) // get alpha part of RGBA |
67 | { return rgb >> 24; } |
68 | |
69 | Q_GUI_EXPORT_INLINE QRgb qRgb(int r, int g, int b)// set RGB value |
70 | { return (0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); } |
71 | |
72 | Q_GUI_EXPORT_INLINE QRgb qRgba(int r, int g, int b, int a)// set RGBA value |
73 | { return ((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); } |
74 | |
75 | Q_GUI_EXPORT_INLINE int qGray(int r, int g, int b)// convert R,G,B to gray 0..255 |
76 | { return (r*11+g*16+b*5)/32; } |
77 | |
78 | Q_GUI_EXPORT_INLINE int qGray(QRgb rgb) // convert RGB to gray 0..255 |
79 | { return qGray(qRed(rgb), qGreen(rgb), qBlue(rgb)); } |
80 | |
81 | Q_GUI_EXPORT_INLINE bool qIsGray(QRgb rgb) |
82 | { return qRed(rgb) == qGreen(rgb) && qRed(rgb) == qBlue(rgb); } |
83 | |
84 | QT_END_NAMESPACE |
85 | |
86 | QT_END_HEADER |
87 | |
88 | #endif // QRGB_H |
89 | |