a402785625
Change-Id: Ia01f3a9aa21c88df5fe5242ad4a3c0acbe68fda0 Reviewed-on: https://gerrit.libreoffice.org/27903 Reviewed-by: Noel Grandin <noelgrandin@gmail.com> Tested-by: Noel Grandin <noelgrandin@gmail.com>
100 lines
3.1 KiB
C++
100 lines
3.1 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_SLIDESHOW_SOURCE_INC_HSLCOLOR_HXX
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#define INCLUDED_SLIDESHOW_SOURCE_INC_HSLCOLOR_HXX
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#include <cppcanvas/color.hxx>
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/* Definition of HSLColor class */
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namespace slideshow
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{
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namespace internal
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{
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class RGBColor;
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/** HSL color space class.
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*/
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class HSLColor
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{
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public:
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HSLColor();
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HSLColor( double nHue, double nSaturation, double nLuminance );
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explicit HSLColor( const RGBColor& rColor );
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/** Hue of the color.
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@return hue, is in the range [0,360]
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*/
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double getHue() const { return maHSLTriple.mnHue; }
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/** Saturation of the color.
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@return saturation, is in the range [0,1]
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*/
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double getSaturation() const { return maHSLTriple.mnSaturation; }
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/** Luminance of the color.
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@return luminance, is in the range [0,1]
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*/
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double getLuminance() const { return maHSLTriple.mnLuminance; }
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struct HSLTriple
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{
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HSLTriple();
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HSLTriple( double nHue, double nSaturation, double nLuminance );
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double mnHue;
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double mnSaturation;
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double mnLuminance;
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};
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private:
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// default copy/assignment are okay
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// HSLColor(const HSLColor&);
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// HSLColor& operator=( const HSLColor& );
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HSLTriple maHSLTriple;
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};
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bool operator==( const HSLColor& rLHS, const HSLColor& rRHS );
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bool operator!=( const HSLColor& rLHS, const HSLColor& rRHS );
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HSLColor operator+( const HSLColor& rLHS, const HSLColor& rRHS );
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HSLColor operator*( double nFactor, const HSLColor& rRHS );
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/** HSL color linear interpolator.
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@param t
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As usual, t must be in the [0,1] range
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@param bCCW
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When true, hue interpolation happens counter-clockwise
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*/
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HSLColor interpolate( const HSLColor& rFrom, const HSLColor& rTo, double t, bool bCCW );
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}
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}
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#endif // INCLUDED_SLIDESHOW_SOURCE_INC_HSLCOLOR_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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