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Diffstat (limited to 'basebmp/inc/basebmp/color.hxx')
-rw-r--r-- | basebmp/inc/basebmp/color.hxx | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/basebmp/inc/basebmp/color.hxx b/basebmp/inc/basebmp/color.hxx new file mode 100644 index 000000000000..1bd70198a280 --- /dev/null +++ b/basebmp/inc/basebmp/color.hxx @@ -0,0 +1,102 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef INCLUDED_BASEBMP_COLOR_HXX +#define INCLUDED_BASEBMP_COLOR_HXX + +#include <sal/types.h> +#include <rtl/math.hxx> + +namespace basebmp +{ + +class Color +{ +private: + sal_uInt32 mnColor; + +public: + typedef sal_uInt32 value_type; + typedef sal_uInt8 component_type; + + 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 setGrey( sal_uInt8 nGreyVal ) { mnColor = (sal_uInt32)nGreyVal << 16 | (sal_uInt32)nGreyVal << 8 | nGreyVal; } + + sal_uInt8 getRed() const { return 0xFF & (sal_uInt8)(mnColor >> 16); } + sal_uInt8 getGreen() const { return 0xFF & (sal_uInt8)(mnColor >> 8); } + sal_uInt8 getBlue() const { return 0xFF & (sal_uInt8)mnColor; } + + sal_uInt8 getGreyscale() const { return (sal_uInt8)((getBlue()*28UL + + getGreen()*151 + + getRed()*77) / 256); } + + sal_uInt32 toInt32() const { return mnColor; } + + bool operator!() const { return mnColor == 0; } + 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((sal_uInt8)abs((int)getRed()-col.getRed()), + (sal_uInt8)abs((int)getGreen()-col.getGreen()), + (sal_uInt8)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_uInt8)((sal_uInt32)col.getRed()*getRed()/SAL_MAX_UINT8), + (sal_uInt8)((sal_uInt32)col.getGreen()*getGreen()/SAL_MAX_UINT8), + (sal_uInt8)((sal_uInt32)col.getBlue()*getBlue()/SAL_MAX_UINT8)); } + Color operator*( sal_uInt8 n ) const { return Color((sal_uInt8)((sal_uInt32)n*getRed()/SAL_MAX_UINT8), + (sal_uInt8)((sal_uInt32)n*getGreen()/SAL_MAX_UINT8), + (sal_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((double)getRed()*getRed() + + getGreen()*getGreen() + + getBlue()*getBlue()); } +}; + +} // namespace vigra + +#endif /* INCLUDED_BASEBMP_COLOR_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |