74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/*
|
|
* Licensed 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
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* Copyright 2010-2015 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#ifndef __UTIL_COLOUR_HPP
|
|
#define __UTIL_COLOUR_HPP
|
|
|
|
#include "coord.hpp"
|
|
|
|
#include "json/tree.hpp"
|
|
|
|
#include <iostream>
|
|
|
|
namespace util {
|
|
/// An RGBA colour POD type.
|
|
template <size_t S, typename T>
|
|
struct colour : public coord::base<S,T,colour,coord::rgba,coord::hsv> {
|
|
using coord::base<S,T,util::colour,coord::rgba,coord::hsv>::base;
|
|
using base_t = coord::base<S,T,util::colour,coord::rgba,coord::hsv>;
|
|
|
|
template <typename U>
|
|
colour<S,U>
|
|
cast (void) const;
|
|
|
|
static const colour WHITE;
|
|
static const colour BLACK;
|
|
static const colour RED;
|
|
static const colour BLUE;
|
|
static const colour GREEN;
|
|
|
|
static colour from_html (const std::string&);
|
|
static colour from_x11 (const std::string&);
|
|
static colour from_string (const std::string&);
|
|
};
|
|
|
|
// Convenience types
|
|
template <typename T> using colour1 = colour<1,T>;
|
|
template <typename T> using colour3 = colour<3,T>;
|
|
template <typename T> using colour4 = colour<4,T>;
|
|
|
|
typedef colour3<uint8_t> colour3u;
|
|
typedef colour4<uint8_t> colour4u;
|
|
|
|
typedef colour1<float> colour1f;
|
|
typedef colour3<float> colour3f;
|
|
typedef colour4<float> colour4f;
|
|
|
|
// RGB <-> HSV
|
|
colour3f rgb_to_hsv (colour3f);
|
|
colour3f hsv_to_rgb (colour3f);
|
|
|
|
// Serialisation
|
|
const json::tree::node& operator>> (const json::tree::node&, util::colour4f&);
|
|
|
|
template <size_t S, typename T>
|
|
std::ostream& operator<< (std::ostream&, util::colour<S,T>);
|
|
}
|
|
|
|
#include "colour.ipp"
|
|
|
|
#endif
|