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Diffstat (limited to 'dviware/dvisvgm/src/Color.hpp')
-rw-r--r-- | dviware/dvisvgm/src/Color.hpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/Color.hpp b/dviware/dvisvgm/src/Color.hpp new file mode 100644 index 0000000000..f522bded55 --- /dev/null +++ b/dviware/dvisvgm/src/Color.hpp @@ -0,0 +1,96 @@ +/************************************************************************* +** Color.hpp ** +** ** +** This file is part of dvisvgm -- a fast DVI to SVG converter ** +** Copyright (C) 2005-2019 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU General Public License as ** +** published by the Free Software Foundation; either version 3 of ** +** the License, or (at your option) any later version. ** +** ** +** This program 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 General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#ifndef COLOR_HPP +#define COLOR_HPP + +#include <string> +#include <valarray> +#include <vector> +#include "VectorIterator.hpp" + +#ifdef TRANSPARENT +#undef TRANSPARENT +#endif + +class Color { + public: + static bool SUPPRESS_COLOR_NAMES; + static const Color BLACK; + static const Color WHITE; + static const Color TRANSPARENT; + + enum class ColorSpace {GRAY, RGB, CMYK, LAB}; + + public: + Color () noexcept : _rgb(0) {} + explicit Color (uint32_t rgb) noexcept : _rgb(rgb) {} + Color (uint8_t r, uint8_t g, uint8_t b) noexcept {setRGB(r,g,b);} + Color (double r, double g, double b) noexcept {setRGB(r,g,b);} + explicit Color (const std::valarray<double> &rgb) noexcept {setRGB(rgb);} + explicit Color (const std::string &name); + explicit operator uint32_t () const {return _rgb;} + bool operator == (const Color &c) const {return _rgb == c._rgb;} + bool operator != (const Color &c) const {return _rgb != c._rgb;} + bool operator < (const Color &c) const {return _rgb < c._rgb;} + Color operator *= (double c); + Color operator * (double c) const {return Color(*this) *= c;} + void setRGB (uint8_t r, uint8_t g, uint8_t b) {_rgb = (r << 16) | (g << 8) | b;} + void setRGB (double r, double g, double b); + void setRGB (const std::valarray<double> &rgb) {setRGB(rgb[0], rgb[1], rgb[2]);} + bool setPSName (std::string name, bool case_sensitive=true); + void setGray (uint8_t g) {setRGB(g,g,g);} + void setGray (double g) {setRGB(g,g,g);} + void setGray (const std::valarray<double> &gray) {setRGB(gray[0], gray[0], gray[0]);} + void setHSB (double h, double s, double b); + void setCMYK (double c, double m, double y, double k); + void setCMYK (const std::valarray<double> &cmyk); + void setXYZ (double x, double y, double z); + void setXYZ (const std::valarray<double> &xyz); + void setLab (double l, double a, double b); + void setLab (const std::valarray<double> &lab); + void set (ColorSpace colorSpace, VectorIterator<double> &it); + double getGray () const; + void getGray (std::valarray<double> &gray) const; + void getRGB (double &r, double &g, double &b) const; + void getRGB (std::valarray<double> &rgb) const; + void getCMYK (double &c, double &m, double &y, double &k) const; + void getCMYK (std::valarray<double> &cmyk) const; + void getXYZ (double &x, double &y, double &z) const; + void getLab (double &l, double &a, double &b) const; + void getLab (std::valarray<double> &lab) const; + double deltaE (const Color &c) const; + std::string rgbString () const; + std::string svgColorString (bool rgbonly) const; + std::string svgColorString () const {return svgColorString(SUPPRESS_COLOR_NAMES);} + static void CMYK2RGB (const std::valarray<double> &cmyk, std::valarray<double> &rgb); + static void RGB2CMYK (const std::valarray<double> &rgb, std::valarray<double> &cmyk); + static void HSB2RGB (const std::valarray<double> &hsb, std::valarray<double> &rgb); + static void RGB2XYZ (std::valarray<double> rgb, std::valarray<double> &xyz); + static void XYZ2RGB (const std::valarray<double> &xyz, std::valarray<double> &rgb); + static void RGB2Lab (const std::valarray<double> &rgb, std::valarray<double> &lab); + static void Lab2XYZ (const std::valarray<double> &lab, std::valarray<double> &xyz); + static int numComponents (ColorSpace colorSpace); + + private: + uint32_t _rgb; +}; + +#endif |