336 lines
10 KiB
C++
336 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#include <sal/config.h>
|
|
|
|
#include <sstream>
|
|
#include <stdlib.h>
|
|
|
|
#include <tools/color.hxx>
|
|
#include <tools/debug.hxx>
|
|
#include <tools/stream.hxx>
|
|
#include <tools/rc.hxx>
|
|
#include <tools/rcid.h>
|
|
#include <tools/resid.hxx>
|
|
#include <tools/rc.h>
|
|
#include <tools/helpers.hxx>
|
|
#include <basegfx/color/bcolortools.hxx>
|
|
|
|
static inline long _FRound( double fVal )
|
|
{
|
|
return( fVal > 0.0 ? (long) ( fVal + 0.5 ) : -(long) ( -fVal + 0.5 ) );
|
|
}
|
|
|
|
Color::Color( const ResId& rResId )
|
|
{
|
|
rResId.SetRT( RSC_COLOR );
|
|
ResMgr* pResMgr = rResId.GetResMgr();
|
|
if ( pResMgr && pResMgr->GetResource( rResId ) )
|
|
{
|
|
// Header ueberspringen
|
|
pResMgr->Increment( sizeof( RSHEADER_TYPE ) );
|
|
|
|
// Daten laden
|
|
sal_uInt16 nRed = pResMgr->ReadShort();
|
|
sal_uInt16 nGreen = pResMgr->ReadShort();
|
|
sal_uInt16 nBlue = pResMgr->ReadShort();
|
|
// one more historical sal_uIntPtr
|
|
pResMgr->ReadLong();
|
|
|
|
// RGB-Farbe
|
|
mnColor = RGB_COLORDATA( nRed>>8, nGreen>>8, nBlue>>8 );
|
|
}
|
|
else
|
|
{
|
|
mnColor = RGB_COLORDATA( 0, 0, 0 );
|
|
}
|
|
}
|
|
|
|
sal_uInt8 Color::GetColorError( const Color& rCompareColor ) const
|
|
{
|
|
const long nErrAbs = labs( (long) rCompareColor.GetRed() - GetRed() ) +
|
|
labs( (long) rCompareColor.GetGreen() - GetGreen() ) +
|
|
labs( (long) rCompareColor.GetBlue() - GetBlue() );
|
|
|
|
return (sal_uInt8) _FRound( nErrAbs * 0.3333333333 );
|
|
}
|
|
|
|
void Color::IncreaseLuminance( sal_uInt8 cLumInc )
|
|
{
|
|
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) 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 ) );
|
|
}
|
|
|
|
void Color::DecreaseContrast( sal_uInt8 cContDec )
|
|
{
|
|
if( cContDec )
|
|
{
|
|
const double fM = ( 128.0 - 0.4985 * cContDec ) / 128.0;
|
|
const double fOff = 128.0 - fM * 128.0;
|
|
|
|
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 ) );
|
|
}
|
|
}
|
|
|
|
void Color::Invert()
|
|
{
|
|
SetRed( ~COLORDATA_RED( mnColor ) );
|
|
SetGreen( ~COLORDATA_GREEN( mnColor ) );
|
|
SetBlue( ~COLORDATA_BLUE( mnColor ) );
|
|
}
|
|
|
|
bool Color::IsDark() const
|
|
{
|
|
return GetLuminance() <= 60;
|
|
}
|
|
|
|
bool Color::IsBright() const
|
|
{
|
|
return GetLuminance() >= 245;
|
|
}
|
|
|
|
// color space conversion
|
|
|
|
void Color::RGBtoHSB( sal_uInt16& nHue, sal_uInt16& nSat, sal_uInt16& nBri ) const
|
|
{
|
|
sal_uInt8 c[3];
|
|
sal_uInt8 cMax, cMin;
|
|
|
|
c[0] = GetRed();
|
|
c[1] = GetGreen();
|
|
c[2] = GetBlue();
|
|
|
|
cMax = c[0];
|
|
if( c[1] > cMax )
|
|
cMax = c[1];
|
|
if( c[2] > cMax )
|
|
cMax = c[2];
|
|
|
|
// Brightness = max(R, G, B);
|
|
nBri = cMax * 100 / 255;
|
|
|
|
cMin = c[0];
|
|
if( c[1] < cMin )
|
|
cMin = c[1];
|
|
if( c[2] < cMin )
|
|
cMin = c[2];
|
|
|
|
sal_uInt8 cDelta = cMax - cMin;
|
|
|
|
// Saturation = max - min / max
|
|
if( nBri > 0 )
|
|
nSat = cDelta * 100 / cMax;
|
|
else
|
|
nSat = 0;
|
|
|
|
if( nSat == 0 )
|
|
nHue = 0; // Default = undefined
|
|
else
|
|
{
|
|
double dHue = 0.0;
|
|
|
|
if( c[0] == cMax )
|
|
{
|
|
dHue = (double)( c[1] - c[2] ) / (double)cDelta;
|
|
}
|
|
else if( c[1] == cMax )
|
|
{
|
|
dHue = 2.0 + (double)( c[2] - c[0] ) / (double)cDelta;
|
|
}
|
|
else if ( c[2] == cMax )
|
|
{
|
|
dHue = 4.0 + (double)( c[0] - c[1] ) / (double)cDelta;
|
|
}
|
|
dHue *= 60.0;
|
|
|
|
if( dHue < 0.0 )
|
|
dHue += 360.0;
|
|
|
|
nHue = (sal_uInt16) dHue;
|
|
}
|
|
}
|
|
|
|
ColorData Color::HSBtoRGB( sal_uInt16 nHue, sal_uInt16 nSat, sal_uInt16 nBri )
|
|
{
|
|
sal_uInt8 cR=0,cG=0,cB=0;
|
|
sal_uInt8 nB = (sal_uInt8) ( nBri * 255 / 100 );
|
|
|
|
if( nSat == 0 )
|
|
{
|
|
cR = nB;
|
|
cG = nB;
|
|
cB = nB;
|
|
}
|
|
else
|
|
{
|
|
double dH = nHue;
|
|
double f;
|
|
sal_uInt16 n;
|
|
if( dH == 360.0 )
|
|
dH = 0.0;
|
|
|
|
dH /= 60.0;
|
|
n = (sal_uInt16) dH;
|
|
f = dH - n;
|
|
|
|
sal_uInt8 a = (sal_uInt8) ( nB * ( 100 - nSat ) / 100 );
|
|
sal_uInt8 b = (sal_uInt8) ( nB * ( 100 - ( (double)nSat * f ) ) / 100 );
|
|
sal_uInt8 c = (sal_uInt8) ( nB * ( 100 - ( (double)nSat * ( 1.0 - f ) ) ) / 100 );
|
|
|
|
switch( n )
|
|
{
|
|
case 0: cR = nB; cG = c; cB = a; break;
|
|
case 1: cR = b; cG = nB; cB = a; break;
|
|
case 2: cR = a; cG = nB; cB = c; break;
|
|
case 3: cR = a; cG = b; cB = nB; break;
|
|
case 4: cR = c; cG = a; cB = nB; break;
|
|
case 5: cR = nB; cG = a; cB = b; break;
|
|
}
|
|
}
|
|
|
|
return RGB_COLORDATA( cR, cG, cB );
|
|
}
|
|
|
|
SvStream& Color::Read( SvStream& rIStm, bool bNewFormat )
|
|
{
|
|
if ( bNewFormat )
|
|
rIStm.ReadUInt32( mnColor );
|
|
else
|
|
ReadColor( rIStm, *this );
|
|
|
|
return rIStm;
|
|
}
|
|
|
|
SvStream& Color::Write( SvStream& rOStm, bool bNewFormat )
|
|
{
|
|
if ( bNewFormat )
|
|
rOStm.WriteUInt32( mnColor );
|
|
else
|
|
WriteColor( rOStm, *this );
|
|
|
|
return rOStm;
|
|
}
|
|
|
|
OUString Color::AsRGBHexString() const
|
|
{
|
|
std::stringstream ss;
|
|
ss << std::hex << std::setfill ('0') << std::setw(6) << GetRGBColor();
|
|
return OUString::createFromAscii(ss.str().c_str());
|
|
}
|
|
|
|
#define COL_NAME_USER ((sal_uInt16)0x8000)
|
|
|
|
SvStream& ReadColor( SvStream& rIStream, Color& rColor )
|
|
{
|
|
DBG_ASSERTWARNING( rIStream.GetVersion(), "Color::>> - Solar-Version not set on rIStream" );
|
|
|
|
sal_uInt16 nColorName;
|
|
|
|
rIStream.ReadUInt16( nColorName );
|
|
|
|
if ( nColorName & COL_NAME_USER )
|
|
{
|
|
sal_uInt16 nRed;
|
|
sal_uInt16 nGreen;
|
|
sal_uInt16 nBlue;
|
|
|
|
rIStream.ReadUInt16( nRed );
|
|
rIStream.ReadUInt16( nGreen );
|
|
rIStream.ReadUInt16( nBlue );
|
|
|
|
rColor.mnColor = RGB_COLORDATA( nRed>>8, nGreen>>8, nBlue>>8 );
|
|
}
|
|
else
|
|
{
|
|
static const ColorData aColAry[] =
|
|
{
|
|
COL_BLACK, // COL_BLACK
|
|
COL_BLUE, // COL_BLUE
|
|
COL_GREEN, // COL_GREEN
|
|
COL_CYAN, // COL_CYAN
|
|
COL_RED, // COL_RED
|
|
COL_MAGENTA, // COL_MAGENTA
|
|
COL_BROWN, // COL_BROWN
|
|
COL_GRAY, // COL_GRAY
|
|
COL_LIGHTGRAY, // COL_LIGHTGRAY
|
|
COL_LIGHTBLUE, // COL_LIGHTBLUE
|
|
COL_LIGHTGREEN, // COL_LIGHTGREEN
|
|
COL_LIGHTCYAN, // COL_LIGHTCYAN
|
|
COL_LIGHTRED, // COL_LIGHTRED
|
|
COL_LIGHTMAGENTA, // COL_LIGHTMAGENTA
|
|
COL_YELLOW, // COL_YELLOW
|
|
COL_WHITE, // COL_WHITE
|
|
COL_WHITE, // COL_MENUBAR
|
|
COL_BLACK, // COL_MENUBARTEXT
|
|
COL_WHITE, // COL_POPUPMENU
|
|
COL_BLACK, // COL_POPUPMENUTEXT
|
|
COL_BLACK, // COL_WINDOWTEXT
|
|
COL_WHITE, // COL_WINDOWWORKSPACE
|
|
COL_BLACK, // COL_HIGHLIGHT
|
|
COL_WHITE, // COL_HIGHLIGHTTEXT
|
|
COL_BLACK, // COL_3DTEXT
|
|
COL_LIGHTGRAY, // COL_3DFACE
|
|
COL_WHITE, // COL_3DLIGHT
|
|
COL_GRAY, // COL_3DSHADOW
|
|
COL_LIGHTGRAY, // COL_SCROLLBAR
|
|
COL_WHITE, // COL_FIELD
|
|
COL_BLACK // COL_FIELDTEXT
|
|
};
|
|
|
|
if ( nColorName < (sizeof( aColAry )/sizeof(ColorData)) )
|
|
rColor.mnColor = aColAry[nColorName];
|
|
else
|
|
rColor.mnColor = COL_BLACK;
|
|
}
|
|
|
|
return rIStream;
|
|
}
|
|
|
|
SvStream& WriteColor( SvStream& rOStream, const Color& rColor )
|
|
{
|
|
DBG_ASSERTWARNING( rOStream.GetVersion(), "Color::<< - Solar-Version not set on rOStream" );
|
|
|
|
sal_uInt16 nColorName = COL_NAME_USER;
|
|
sal_uInt16 nRed = rColor.GetRed();
|
|
sal_uInt16 nGreen = rColor.GetGreen();
|
|
sal_uInt16 nBlue = rColor.GetBlue();
|
|
nRed = (nRed<<8) + nRed;
|
|
nGreen = (nGreen<<8) + nGreen;
|
|
nBlue = (nBlue<<8) + nBlue;
|
|
|
|
rOStream.WriteUInt16( nColorName );
|
|
rOStream.WriteUInt16( nRed );
|
|
rOStream.WriteUInt16( nGreen );
|
|
rOStream.WriteUInt16( nBlue );
|
|
|
|
return rOStream;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|