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/* -*- 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 <basegfx/color/bcolormodifier.hxx>
//////////////////////////////////////////////////////////////////////////////
namespace basegfx
{
::basegfx::BColor BColorModifier::getModifiedColor(const ::basegfx::BColor& aSourceColor) const
{
switch(meMode)
{
case BCOLORMODIFYMODE_INTERPOLATE :
{
return interpolate(maBColor, aSourceColor, mfValue);
}
case BCOLORMODIFYMODE_GRAY :
{
const double fLuminance(aSourceColor.luminance());
return ::basegfx::BColor(fLuminance, fLuminance, fLuminance);
}
case BCOLORMODIFYMODE_BLACKANDWHITE :
{
const double fLuminance(aSourceColor.luminance());
if(fLuminance < mfValue)
{
return ::basegfx::BColor::getEmptyBColor();
}
else
{
return ::basegfx::BColor(1.0, 1.0, 1.0);
}
}
case BCOLORMODIFYMODE_INVERT :
{
return ::basegfx::BColor(1.0 - aSourceColor.getRed(), 1.0 - aSourceColor.getGreen(), 1.0 - aSourceColor.getBlue());
}
case BCOLORMODIFYMODE_LUMINANCE_TO_ALPHA:
{
const double fAlpha(1.0 - ((aSourceColor.getRed() * 0.2125) + (aSourceColor.getGreen() * 0.7154) + (aSourceColor.getBlue() * 0.0721)));
return ::basegfx::BColor(fAlpha, fAlpha, fAlpha);
}
default : // BCOLORMODIFYMODE_REPLACE
{
return maBColor;
}
}
}
} // end of namespace basegfx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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