255 lines
7.5 KiB
C++
255 lines
7.5 KiB
C++
/***************************************************************************
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qcolor.h
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(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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/****************************************************************************
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** $Id: qt/qcolor.h 3.3.4 edited Nov 24 2003 $
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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) 1992-2000 Trolltech AS. 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 distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
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** licenses may use this file in accordance with the Qt Commercial License
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** 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, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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**
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** Contact info@trolltech.com if any conditions of this licensing are
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** not clear to you.
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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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#include "qt.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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int alpha() 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 int QColor::alpha() const
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{ return qAlpha(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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