diff options
Diffstat (limited to 'tools/source/generic/color.cxx')
| -rw-r--r-- | tools/source/generic/color.cxx | 77 |
1 files changed, 62 insertions, 15 deletions
diff --git a/tools/source/generic/color.cxx b/tools/source/generic/color.cxx index ec325b9ca3d3..5560e631767a 100644 --- a/tools/source/generic/color.cxx +++ b/tools/source/generic/color.cxx @@ -1,3 +1,4 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /************************************************************************* * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -29,16 +30,13 @@ #include "precompiled_tools.hxx" #include <stdlib.h> -#include <vos/macros.hxx> #include <tools/color.hxx> #include <tools/debug.hxx> #include <tools/stream.hxx> #include <tools/rc.hxx> #include <tools/rcid.h> #include <tools/resid.hxx> -#ifndef _SV_RC_H #include <tools/rc.h> -#endif // ----------- // - Inlines - @@ -90,18 +88,18 @@ sal_uInt8 Color::GetColorError( const Color& rCompareColor ) const void Color::IncreaseLuminance( sal_uInt8 cLumInc ) { - SetRed( (sal_uInt8) VOS_BOUND( (long) COLORDATA_RED( mnColor ) + cLumInc, 0L, 255L ) ); - SetGreen( (sal_uInt8) VOS_BOUND( (long) COLORDATA_GREEN( mnColor ) + cLumInc, 0L, 255L ) ); - SetBlue( (sal_uInt8) VOS_BOUND( (long) COLORDATA_BLUE( mnColor ) + cLumInc, 0L, 255L ) ); + SetRed( (sal_uInt8) SAL_BOUND( (long) COLORDATA_RED( mnColor ) + cLumInc, 0L, 255L ) ); + SetGreen( (sal_uInt8) SAL_BOUND( (long) COLORDATA_GREEN( mnColor ) + cLumInc, 0L, 255L ) ); + SetBlue( (sal_uInt8) SAL_BOUND( (long) COLORDATA_BLUE( mnColor ) + cLumInc, 0L, 255L ) ); } // ----------------------------------------------------------------------- void Color::DecreaseLuminance( sal_uInt8 cLumDec ) { - SetRed( (sal_uInt8) VOS_BOUND( (long) COLORDATA_RED( mnColor ) - cLumDec, 0L, 255L ) ); - SetGreen( (sal_uInt8) VOS_BOUND( (long) COLORDATA_GREEN( mnColor ) - cLumDec, 0L, 255L ) ); - SetBlue( (sal_uInt8) VOS_BOUND( (long) COLORDATA_BLUE( mnColor ) - cLumDec, 0L, 255L ) ); + SetRed( (sal_uInt8) SAL_BOUND( (long) COLORDATA_RED( mnColor ) - cLumDec, 0L, 255L ) ); + SetGreen( (sal_uInt8) SAL_BOUND( (long) COLORDATA_GREEN( mnColor ) - cLumDec, 0L, 255L ) ); + SetBlue( (sal_uInt8) SAL_BOUND( (long) COLORDATA_BLUE( mnColor ) - cLumDec, 0L, 255L ) ); } // ----------------------------------------------------------------------- @@ -113,9 +111,9 @@ void Color::IncreaseContrast( sal_uInt8 cContInc ) const double fM = 128.0 / ( 128.0 - 0.4985 * cContInc ); const double fOff = 128.0 - fM * 128.0; - SetRed( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); - SetGreen( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); - SetBlue( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetRed( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetGreen( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetBlue( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); } } @@ -128,9 +126,9 @@ void Color::DecreaseContrast( sal_uInt8 cContDec ) const double fM = ( 128.0 - 0.4985 * cContDec ) / 128.0; const double fOff = 128.0 - fM * 128.0; - SetRed( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); - SetGreen( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); - SetBlue( (sal_uInt8) VOS_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetRed( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_RED( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetGreen( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_GREEN( mnColor ) * fM + fOff ), 0L, 255L ) ); + SetBlue( (sal_uInt8) SAL_BOUND( _FRound( COLORDATA_BLUE( mnColor ) * fM + fOff ), 0L, 255L ) ); } } @@ -263,6 +261,53 @@ ColorData Color::HSBtoRGB( sal_uInt16 nHue, sal_uInt16 nSat, sal_uInt16 nBri ) // ----------------------------------------------------------------------- +// CMYK values from 0 to 1 +ColorData Color::CMYKtoRGB( double fCyan, double fMagenta, double fYellow, double fKey ) +{ + fCyan = (fCyan * ( 1.0 - fKey )) + fKey; + fMagenta = (fMagenta * ( 1.0 - fKey )) + fKey; + fYellow = (fYellow * ( 1.0 - fKey )) + fKey; + + sal_uInt8 nRed = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fCyan ) * 255.0, 255.0), 0.0 ) ); + sal_uInt8 nGreen = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fMagenta ) * 255.0, 255.0), 0.0 ) ); + sal_uInt8 nBlue = static_cast< sal_uInt8 >( std::max( std::min( ( 1.0 - fYellow ) * 255.0, 255.0), 0.0 ) ); + + return RGB_COLORDATA( nRed, nGreen, nBlue ); +} + +// ----------------------------------------------------------------------- + +// RGB values from 0 to 255 +// CMY results from 0 to 1 +void Color::RGBtoCMYK( double& fCyan, double& fMagenta, double& fYellow, double& fKey ) +{ + fCyan = 1 - ( GetRed() / 255.0 ); + fMagenta = 1 - ( GetGreen() / 255.0 ); + fYellow = 1 - ( GetBlue() / 255.0 ); + + //CMYK and CMY values from 0 to 1 + fKey = 1.0; + if( fCyan < fKey ) fKey = fCyan; + if( fMagenta < fKey ) fKey = fMagenta; + if( fYellow < fKey ) fKey = fYellow; + + if ( fKey == 1.0 ) + { + //Black + fCyan = 0.0; + fMagenta = 0.0; + fYellow = 0.0; + } + else + { + fCyan = ( fCyan - fKey ) / ( 1.0 - fKey ); + fMagenta = ( fMagenta - fKey ) / ( 1.0 - fKey ); + fYellow = ( fYellow - fKey ) / ( 1.0 - fKey ); + } +} + +// ----------------------------------------------------------------------- + SvStream& Color::Read( SvStream& rIStm, sal_Bool bNewFormat ) { if ( bNewFormat ) @@ -508,3 +553,5 @@ SvStream& operator<<( SvStream& rOStream, const Color& rColor ) return rOStream; } + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |