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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: color.hxx,v $
*
* $Revision: 1.10 $
*
* last change: $Author: thb $ $Date: 2006-06-30 13:36:14 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef INCLUDED_BASEBMP_COLOR_HXX
#define INCLUDED_BASEBMP_COLOR_HXX
#ifndef _SAL_TYPES_H_
#include <sal/types.h>
#endif
#include <math.h>
namespace basebmp
{
class Color
{
private:
sal_uInt32 mnColor;
public:
Color() : mnColor(0) {}
explicit Color( sal_uInt32 nVal ) : mnColor(nVal) {}
Color( sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue ) :
mnColor( ((sal_uInt32)nRed << 16) | ((sal_uInt32)nGreen << 8) | nBlue )
{}
void setRed( sal_uInt8 nRed ) { mnColor &= ~0x00FF0000UL; mnColor |= (sal_uInt32)nRed << 16; }
void setGreen( sal_uInt8 nGreen ) { mnColor &= ~0x0000FF00UL; mnColor |= (sal_uInt32)nGreen << 8; }
void setBlue( sal_uInt8 nBlue ) { mnColor &= ~0x000000FFUL; mnColor |= nBlue; }
void setGray( sal_uInt8 nGrayVal ) { mnColor = (sal_uInt32)nGrayVal << 16 | (sal_uInt32)nGrayVal << 8 | nGrayVal; }
sal_uInt8 getRed() const { return 0xFF & (mnColor >> 16); }
sal_uInt8 getGreen() const { return 0xFF & (mnColor >> 8); }
sal_uInt8 getBlue() const { return 0xFF & mnColor; }
sal_uInt8 getGrayscale() const { return (sal_uInt8)((getBlue()*28UL +
getGreen()*151 +
getRed()*77) / 256); }
sal_uInt32 toInt32() const { return mnColor; }
Color operator&( sal_uInt32 nMask ) const { return Color(mnColor & nMask); }
Color operator^( Color col ) const { return Color(col.getRed()^getRed(),
col.getGreen()^getGreen(),
col.getBlue()^getBlue()); }
Color operator-( Color col ) const { return Color(abs((int)getRed()-col.getRed()),
abs((int)getGreen()-col.getGreen()),
abs((int)getBlue()-col.getBlue())); }
Color operator+( Color col ) const { return Color(getRed()+col.getRed(),
getGreen()+col.getGreen(),
getBlue()+col.getBlue()); }
Color operator*( Color col ) const { return Color((sal_uInt32)col.getRed()*getRed()/SAL_MAX_UINT8,
(sal_uInt32)col.getGreen()*getGreen()/SAL_MAX_UINT8,
(sal_uInt32)col.getBlue()*getBlue()/SAL_MAX_UINT8); }
Color operator*( sal_uInt8 n ) const { return Color((sal_uInt32)n*getRed()/SAL_MAX_UINT8,
(sal_uInt32)n*getGreen()/SAL_MAX_UINT8,
(sal_uInt32)n*getBlue()/SAL_MAX_UINT8); }
Color operator*( double n ) const { return Color((sal_uInt8)(n*getRed()+.5),
(sal_uInt8)(n*getGreen()+.5),
(sal_uInt8)(n*getBlue()+.5)); }
bool operator==( const Color& rhs ) const { return (getRed()==rhs.getRed() &&
getGreen()==rhs.getGreen() &&
getBlue()==rhs.getBlue()); }
bool operator!=( const Color& rhs ) const { return !(*this==rhs); }
double magnitude() const { return sqrt(getRed()*getRed()
+ getGreen()*getGreen()
+ getBlue()*getBlue()); }
};
} // namespace vigra
#endif /* INCLUDED_BASEBMP_COLOR_HXX */
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