summaryrefslogtreecommitdiffstats
path: root/src/gui/painting/qrgb.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/gui/painting/qrgb.h')
-rw-r--r--src/gui/painting/qrgb.h88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/gui/painting/qrgb.h b/src/gui/painting/qrgb.h
new file mode 100644
index 0000000000..df6a920e80
--- /dev/null
+++ b/src/gui/painting/qrgb.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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