/****************************************************************************
** $Id: qcolor.h,v 2.11.2.2 1998/08/25 09:20:52 hanord Exp $
**
** Definition of QColor class
**
** Created : 940112
**
** Copyright (C) 1992-1999 Troll Tech AS. All rights reserved.
**
** This file is part of Qt Free Edition, version 1.45.
**
** See the file LICENSE included in the distribution for the usage
** and distribution terms, or http://www.troll.no/free-license.html.
**
** IMPORTANT NOTE: You may NOT copy this file or any part of it into
** your own programs or libraries.
**
** Please see http://www.troll.no/pricing.html for information about
** Qt Professional Edition, which is this same library but with a
** license which allows creation of commercial/proprietary software.
**
*****************************************************************************/
#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 & 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 >> 16) & 0xff); }
Q_EXPORT inline QRgb qRgb( int r, int g, int b )// set RGB value
{ return (uint)(r & 0xff) |((uint)(g & 0xff) << 8) |((uint)(b & 0xff) << 16); }
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 QColor
{
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 char *name );
QColor( const QColor & );
QColor &operator=( const QColor & );
bool isValid() const;
bool isDirty() const;
void setNamedColor( const char *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 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 HANDLE hPal() { return hpal; }
static uint realizePal( QWidget * );
#endif
static void initialize();
static void cleanup();
private:
void setSystemNamedColor( const char *name );
static void initGlobalColors();
static bool color_init;
static bool globals_init;
static bool lalloc;
#if defined(_WS_WIN_)
static HANDLE 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 lalloc; }
inline bool QColor::operator==( const QColor &c ) const
{
return (((rgbVal | c.rgbVal) & RGB_DIRECT) == 0 &&
(rgbVal & 0x00ffffff) == (c.rgbVal & 0x00ffffff)) ||
((rgbVal & c.rgbVal & RGB_DIRECT) != 0 &&
(rgbVal & 0x00ffffff) == (c.rgbVal & 0x00ffffff) && pix == c.pix);
}
inline bool QColor::operator!=( const QColor &c ) const
{
return !operator==(c);
}
/*****************************************************************************
Global colors
*****************************************************************************/
extern Q_EXPORT const QColor color0;
extern Q_EXPORT const QColor color1;
extern Q_EXPORT const QColor black;
extern Q_EXPORT const QColor white;
extern Q_EXPORT const QColor darkGray;
extern Q_EXPORT const QColor gray;
extern Q_EXPORT const QColor lightGray;
extern Q_EXPORT const QColor red;
extern Q_EXPORT const QColor green;
extern Q_EXPORT const QColor blue;
extern Q_EXPORT const QColor cyan;
extern Q_EXPORT const QColor magenta;
extern Q_EXPORT const QColor yellow;
extern Q_EXPORT const QColor darkRed;
extern Q_EXPORT const QColor darkGreen;
extern Q_EXPORT const QColor darkBlue;
extern Q_EXPORT const QColor darkCyan;
extern Q_EXPORT const QColor darkMagenta;
extern Q_EXPORT const QColor darkYellow;
/*****************************************************************************
QColor stream functions
*****************************************************************************/
Q_EXPORT QDataStream &operator<<( QDataStream &, const QColor & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QColor & );
#endif // QCOLOR_H
| Copyright © 1999 Troll Tech | Trademarks | Qt version 1.45
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