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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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Qt Toolkit - qcolor.h include file
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<h1 align=center>qcolor.h</h1><br clear="all">
This is the verbatim text of the qcolor.h include file. It is
provided only for illustration; the copyright
remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/src/kernel/qcolor.h 2.3.2 edited 2001-01-26 $
**
** Definition of QColor class
**
** Created : 940112
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QCOLOR_H
#define QCOLOR_H
#ifndef QT_H
#include "qwindowdefs.h"
#endif // QT_H
const QRgb RGB_DIRTY = 0x80000000; // flags unset color
const QRgb RGB_INVALID = 0x40000000; // flags invalid color
const QRgb RGB_DIRECT = 0x20000000; // flags directly set pixel
const QRgb RGB_MASK = 0x00ffffff; // masks RGB values
Q_EXPORT inline int qRed( QRgb rgb ) // get red part of RGB
{ return (int)((rgb >> 16) & 0xff); }
Q_EXPORT inline int qGreen( QRgb rgb ) // get green part of RGB
{ return (int)((rgb >> 8) & 0xff); }
Q_EXPORT inline int qBlue( QRgb rgb ) // get blue part of RGB
{ return (int)(rgb & 0xff); }
Q_EXPORT inline int qAlpha( QRgb rgb ) // get alpha part of RGBA
{ return (int)((rgb >> 24) & 0xff); }
Q_EXPORT inline QRgb qRgb( int r, int g, int b )// set RGB value
{ return (0xff << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
Q_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_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_EXPORT inline int qGray( QRgb rgb ) // convert RGB to gray 0..255
{ return qGray( qRed(rgb), qGreen(rgb), qBlue(rgb) ); }
class Q_EXPORT <a href="qcolor.html">QColor</a>
{
public:
enum Spec { Rgb, Hsv };
QColor();
QColor( int r, int g, int b );
QColor( int x, int y, int z, Spec );
QColor( QRgb rgb, uint pixel=0xffffffff);
QColor( const QString& name );
QColor( const char *name );
QColor( const QColor & );
QColor &operator=( const QColor & );
bool isValid() const;
bool isDirty() const;
QString name() const;
void setNamedColor( const QString& name );
void rgb( int *r, int *g, int *b ) const;
QRgb rgb() const;
void setRgb( int r, int g, int b );
void setRgb( QRgb rgb );
int red() const;
int green() const;
int blue() const;
void hsv( int *h, int *s, int *v ) const;
void getHsv( int &h, int &s, int &v ) const;
void setHsv( int h, int s, int v );
QColor light( int f = 150 ) const;
QColor dark( int f = 200 ) const;
bool operator==( const QColor &c ) const;
bool operator!=( const QColor &c ) const;
static bool lazyAlloc();
static void setLazyAlloc( bool );
uint alloc();
uint pixel() const;
static int maxColors();
static int numBitPlanes();
static int enterAllocContext();
static void leaveAllocContext();
static int currentAllocContext();
static void destroyAllocContext( int );
#if defined(_WS_WIN_)
static HPALETTE hPal() { return hpal; }
static uint realizePal( QWidget * );
#endif
static void initialize();
static void cleanup();
private:
void setSystemNamedColor( const QString& name );
static void initGlobalColors();
static QColor* globalColors();
static bool color_init;
static bool globals_init;
static bool lazy_alloc;
#if defined(_WS_WIN_)
static HPALETTE hpal;
#endif
uint pix;
QRgb rgbVal;
};
inline QColor::QColor()
{ rgbVal = RGB_INVALID; pix = 0; }
inline QColor::QColor( int r, int g, int b )
{ setRgb( r, g, b ); }
inline bool QColor::isValid() const
{ return (rgbVal & RGB_INVALID) == 0; }
inline bool QColor::isDirty() const
{ return (rgbVal & RGB_DIRTY) != 0; }
inline QRgb QColor::rgb() const
{ return rgbVal | ~RGB_MASK; }
inline int QColor::red() const
{ return qRed(rgbVal); }
inline int QColor::green() const
{ return qGreen(rgbVal); }
inline int QColor::blue() const
{ return qBlue(rgbVal); }
inline uint QColor::pixel() const
{ return (rgbVal & RGB_DIRTY) == 0 ? pix : ((QColor*)this)->alloc(); }
inline bool QColor::lazyAlloc()
{ return lazy_alloc; }
inline bool QColor::operator==( const QColor &c ) const
{
return isValid()==c.isValid() &&
((((rgbVal | c.rgbVal) & RGB_DIRECT) == 0 &&
(rgbVal & RGB_MASK) == (c.rgbVal & RGB_MASK)) ||
((rgbVal & c.rgbVal & RGB_DIRECT) != 0 &&
(rgbVal & RGB_MASK) == (c.rgbVal & RGB_MASK) && pix == c.pix));
}
inline bool QColor::operator!=( const QColor &c ) const
{
return !operator==(c);
}
/*****************************************************************************
QColor stream functions
*****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_EXPORT QDataStream &operator<<( QDataStream &, const QColor & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QColor & );
#endif
#endif // QCOLOR_H
</pre>
<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright 2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
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