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230 lines
6.7 KiB
230 lines
6.7 KiB
/****************************************************************************
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**
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** Definition of QColor class
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**
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** Created : 940112
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QCOLOR_H
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#define QCOLOR_H
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#ifndef QT_H
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#include "qwindowdefs.h"
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#include "qstringlist.h"
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#endif // QT_H
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const QRgb RGB_MASK = 0x00ffffff; // masks RGB values
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Q_EXPORT inline int qRed( QRgb rgb ) // get red part of RGB
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{ return (int)((rgb >> 16) & 0xff); }
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Q_EXPORT inline int qGreen( QRgb rgb ) // get green part of RGB
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{ return (int)((rgb >> 8) & 0xff); }
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Q_EXPORT inline int qBlue( QRgb rgb ) // get blue part of RGB
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{ return (int)(rgb & 0xff); }
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Q_EXPORT inline int qAlpha( QRgb rgb ) // get alpha part of RGBA
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{ return (int)((rgb >> 24) & 0xff); }
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Q_EXPORT inline QRgb qRgb( int r, int g, int b )// set RGB value
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{ return (0xff << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
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Q_EXPORT inline QRgb qRgba( int r, int g, int b, int a )// set RGBA value
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{ return ((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); }
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Q_EXPORT inline int qGray( int r, int g, int b )// convert R,G,B to gray 0..255
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{ return (r*11+g*16+b*5)/32; }
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Q_EXPORT inline int qGray( QRgb rgb ) // convert RGB to gray 0..255
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{ return qGray( qRed(rgb), qGreen(rgb), qBlue(rgb) ); }
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class Q_EXPORT QColor
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{
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public:
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enum Spec { Rgb, Hsv };
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QColor();
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QColor( int r, int g, int b );
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QColor( int x, int y, int z, Spec );
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QColor( QRgb rgb, uint pixel=0xffffffff);
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QColor( const QString& name );
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QColor( const char *name );
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QColor( const QColor & );
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QColor &operator=( const QColor & );
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bool isValid() const;
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bool isDirty() const;
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QString name() const;
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void setNamedColor( const QString& name );
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QRgb rgb() const;
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void setRgb( int r, int g, int b );
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void setRgb( QRgb rgb );
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void getRgb( int *r, int *g, int *b ) const { rgb( r, g, b ); }
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void rgb( int *r, int *g, int *b ) const; // obsolete
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int red() const;
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int green() const;
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int blue() const;
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void setHsv( int h, int s, int v );
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void getHsv( int *h, int *s, int *v ) const { hsv( h, s, v ); }
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void hsv( int *h, int *s, int *v ) const; // obsolete
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void getHsv( int &h, int &s, int &v ) const { hsv( &h, &s, &v ); } // obsolete
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QColor light( int f = 150 ) const;
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QColor dark( int f = 200 ) const;
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bool operator==( const QColor &c ) const;
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bool operator!=( const QColor &c ) const;
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uint alloc();
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uint pixel() const;
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#if defined(Q_WS_X11)
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// ### in 4.0, make this take a default argument of -1 for default screen?
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uint alloc( int screen );
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uint pixel( int screen ) const;
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#endif
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static int maxColors();
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static int numBitPlanes();
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static int enterAllocContext();
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static void leaveAllocContext();
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static int currentAllocContext();
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static void destroyAllocContext( int );
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#if defined(Q_WS_WIN)
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static const QRgb* palette( int* numEntries = 0 );
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static int setPaletteEntries( const QRgb* entries, int numEntries,
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int base = -1 );
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static HPALETTE hPal() { return hpal; }
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static uint realizePal( QWidget * );
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#endif
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static void initialize();
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static void cleanup();
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#ifndef QT_NO_STRINGLIST
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static QStringList colorNames();
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#endif
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enum { Dirt = 0x44495254, Invalid = 0x49000000 };
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private:
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void setSystemNamedColor( const QString& name );
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void setPixel( uint pixel );
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static void initGlobalColors();
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static uint argbToPix32(QRgb);
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static QColor* globalColors();
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static bool color_init;
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static bool globals_init;
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#if defined(Q_WS_WIN)
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static HPALETTE hpal;
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#endif
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static enum ColorModel { d8, d32 } colormodel;
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union {
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QRgb argb;
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struct D8 {
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QRgb argb;
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uchar pix;
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uchar invalid;
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uchar dirty;
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uchar direct;
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} d8;
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struct D32 {
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QRgb argb;
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uint pix;
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bool invalid() const { return argb == QColor::Invalid && pix == QColor::Dirt; }
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bool probablyDirty() const { return pix == QColor::Dirt; }
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} d32;
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} d;
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};
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inline QColor::QColor()
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{ d.d32.argb = Invalid; d.d32.pix = Dirt; }
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inline QColor::QColor( int r, int g, int b )
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{
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d.d32.argb = Invalid;
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d.d32.pix = Dirt;
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setRgb( r, g, b );
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}
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inline QRgb QColor::rgb() const
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{ return d.argb; }
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inline int QColor::red() const
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{ return qRed(d.argb); }
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inline int QColor::green() const
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{ return qGreen(d.argb); }
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inline int QColor::blue() const
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{ return qBlue(d.argb); }
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inline bool QColor::isValid() const
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{
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if ( colormodel == d8 )
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return !d.d8.invalid;
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else
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return !d.d32.invalid();
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}
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inline bool QColor::operator==( const QColor &c ) const
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{
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return d.argb == c.d.argb && isValid() == c.isValid();
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}
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inline bool QColor::operator!=( const QColor &c ) const
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{
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return !operator==(c);
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}
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/*****************************************************************************
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QColor stream functions
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*****************************************************************************/
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#ifndef QT_NO_DATASTREAM
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Q_EXPORT QDataStream &operator<<( QDataStream &, const QColor & );
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Q_EXPORT QDataStream &operator>>( QDataStream &, QColor & );
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#endif
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#endif // QCOLOR_H
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