b9337e22ce
see https://gerrit.libreoffice.org/#/c/3367/ and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a
93 lines
4.7 KiB
C++
93 lines
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_BASEBMP_COLOR_HXX
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#define INCLUDED_BASEBMP_COLOR_HXX
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#include <sal/types.h>
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#include <rtl/math.hxx>
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namespace basebmp
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{
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class Color
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{
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private:
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sal_uInt32 mnColor;
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public:
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typedef sal_uInt32 value_type;
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typedef sal_uInt8 component_type;
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Color() : mnColor(0) {}
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explicit Color( sal_uInt32 nVal ) : mnColor(nVal) {}
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Color( sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue ) :
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mnColor( ((sal_uInt32)nRed << 16) | ((sal_uInt32)nGreen << 8) | nBlue )
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{}
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void setRed( sal_uInt8 nRed ) { mnColor &= ~0x00FF0000UL; mnColor |= (sal_uInt32)nRed << 16; }
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void setGreen( sal_uInt8 nGreen ) { mnColor &= ~0x0000FF00UL; mnColor |= (sal_uInt32)nGreen << 8; }
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void setBlue( sal_uInt8 nBlue ) { mnColor &= ~0x000000FFUL; mnColor |= nBlue; }
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void setGrey( sal_uInt8 nGreyVal ) { mnColor = (sal_uInt32)nGreyVal << 16 | (sal_uInt32)nGreyVal << 8 | nGreyVal; }
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sal_uInt8 getRed() const { return 0xFF & (sal_uInt8)(mnColor >> 16); }
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sal_uInt8 getGreen() const { return 0xFF & (sal_uInt8)(mnColor >> 8); }
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sal_uInt8 getBlue() const { return 0xFF & (sal_uInt8)mnColor; }
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sal_uInt8 getGreyscale() const { return (sal_uInt8)((getBlue()*28UL +
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getGreen()*151 +
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getRed()*77) / 256); }
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sal_uInt32 toInt32() const { return mnColor; }
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bool operator!() const { return mnColor == 0; }
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Color operator&( sal_uInt32 nMask ) const { return Color(mnColor & nMask); }
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Color operator^( Color col ) const { return Color(col.getRed()^getRed(),
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col.getGreen()^getGreen(),
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col.getBlue()^getBlue()); }
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Color operator-( Color col ) const { return Color((sal_uInt8)abs((int)getRed()-col.getRed()),
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(sal_uInt8)abs((int)getGreen()-col.getGreen()),
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(sal_uInt8)abs((int)getBlue()-col.getBlue())); }
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Color operator+( Color col ) const { return Color(getRed()+col.getRed(),
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getGreen()+col.getGreen(),
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getBlue()+col.getBlue()); }
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Color operator*( Color col ) const { return Color((sal_uInt8)((sal_uInt32)col.getRed()*getRed()/SAL_MAX_UINT8),
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(sal_uInt8)((sal_uInt32)col.getGreen()*getGreen()/SAL_MAX_UINT8),
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(sal_uInt8)((sal_uInt32)col.getBlue()*getBlue()/SAL_MAX_UINT8)); }
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Color operator*( sal_uInt8 n ) const { return Color((sal_uInt8)((sal_uInt32)n*getRed()/SAL_MAX_UINT8),
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(sal_uInt8)((sal_uInt32)n*getGreen()/SAL_MAX_UINT8),
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(sal_uInt8)((sal_uInt32)n*getBlue()/SAL_MAX_UINT8)); }
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Color operator*( double n ) const { return Color((sal_uInt8)(n*getRed()+.5),
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(sal_uInt8)(n*getGreen()+.5),
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(sal_uInt8)(n*getBlue()+.5)); }
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bool operator==( const Color& rhs ) const { return (getRed()==rhs.getRed() &&
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getGreen()==rhs.getGreen() &&
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getBlue()==rhs.getBlue()); }
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bool operator!=( const Color& rhs ) const { return !(*this==rhs); }
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double magnitude() const { return sqrt((double)getRed()*getRed()
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+ getGreen()*getGreen()
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+ getBlue()*getBlue()); }
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};
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} // namespace vigra
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#endif /* INCLUDED_BASEBMP_COLOR_HXX */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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