69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2010-2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_COLOUR_HPP
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#define __UTIL_COLOUR_HPP
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#include "coord.hpp"
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#include "json/tree.hpp"
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#include <iostream>
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namespace util {
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/// An RGBA colour POD type.
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template <size_t S, typename T>
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struct colour : public coord::base<S,T,colour,coord::rgba,coord::hsv> {
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using coord::base<S,T,util::colour,coord::rgba,coord::hsv>::base;
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using base_t = coord::base<S,T,util::colour,coord::rgba,coord::hsv>;
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template <typename U>
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colour<S,U>
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cast (void) const;
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static const colour WHITE;
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static const colour BLACK;
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static const colour RED;
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static const colour BLUE;
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static const colour GREEN;
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static colour from_html (const std::string&);
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static colour from_x11 (const std::string&);
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static colour from_string (const std::string&);
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};
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// Convenience types
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typedef colour<4,float> colour4f;
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typedef colour<3,float> colour3f;
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// RGB <-> HSV
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colour3f rgb_to_hsv (colour3f);
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colour3f hsv_to_rgb (colour3f);
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// Serialisation
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const json::tree::node& operator>> (const json::tree::node&, util::colour4f&);
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template <size_t S, typename T>
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std::ostream& operator<< (std::ostream&, util::colour<S,T>);
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}
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#include "colour.ipp"
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#endif
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