iobroker.lightcontrol
Version:
Light control of lamps from various manufacturers
429 lines (376 loc) • 10.1 kB
JavaScript
"use strict";
// Conversion functions, taken from: https://github.com/Qix-/color-convert
async function ConvertHsvToRgb(hsv) {
const h = hsv[0] / 60;
const s = hsv[1] / 100;
let v = hsv[2] / 100;
const hi = Math.floor(h) % 6;
const f = h - Math.floor(h);
const p = 255 * v * (1 - s);
const q = 255 * v * (1 - s * f);
const t = 255 * v * (1 - s * (1 - f));
v *= 255;
switch (hi) {
case 0:
return [v, t, p];
case 1:
return [q, v, p];
case 2:
return [p, v, t];
case 3:
return [p, q, v];
case 4:
return [t, p, v];
case 5:
return [v, p, q];
}
}
async function ConvertRgbToHsl(rgb) {
const r = rgb[0] / 255;
const g = rgb[1] / 255;
const b = rgb[2] / 255;
const min = Math.min(r, g, b);
const max = Math.max(r, g, b);
const delta = max - min;
let h = 0;
let s;
if (max === min) {
h = 0;
} else if (r === max) {
h = (g - b) / delta;
} else if (g === max) {
h = 2 + (b - r) / delta;
} else if (b === max) {
h = 4 + (r - g) / delta;
}
h = Math.min(h * 60, 360);
if (h < 0) {
h += 360;
}
const l = (min + max) / 2;
if (max === min) {
s = 0;
} else if (l <= 0.5) {
s = delta / (max + min);
} else {
s = delta / (2 - max - min);
}
return [h, s * 100, l * 100];
}
async function ConvertRgbToHsv(rgb) {
let rdif;
let gdif;
let bdif;
let h = 0;
let s;
const r = rgb[0] / 255;
const g = rgb[1] / 255;
const b = rgb[2] / 255;
const v = Math.max(r, g, b);
const diff = v - Math.min(r, g, b);
const diffc = function (c) {
return (v - c) / 6 / diff + 1 / 2;
};
if (diff === 0) {
h = 0;
s = 0;
} else {
s = diff / v;
rdif = diffc(r);
gdif = diffc(g);
bdif = diffc(b);
if (r === v) {
h = bdif - gdif;
} else if (g === v) {
h = 1 / 3 + rdif - bdif;
} else if (b === v) {
h = 2 / 3 + gdif - rdif;
}
if (h < 0) {
h += 1;
} else if (h > 1) {
h -= 1;
}
}
return [h * 360, s * 100, v * 100];
}
async function ConvertRgbToCmyk(rgb) {
const r = rgb[0] / 255;
const g = rgb[1] / 255;
const b = rgb[2] / 255;
const k = Math.min(1 - r, 1 - g, 1 - b);
const c = (1 - r - k) / (1 - k) || 0;
const m = (1 - g - k) / (1 - k) || 0;
const y = (1 - b - k) / (1 - k) || 0;
return [c * 100, m * 100, y * 100, k * 100];
}
async function comparativeDistance(x, y) {
/*
See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
*/
return (x[0] - y[0]) ** 2 + (x[1] - y[1]) ** 2 + (x[2] - y[2]) ** 2;
}
async function ConvertRgbToKeyword(rgb) {
const reversed = reverseKeywords[rgb];
if (reversed) {
return reversed;
}
let currentClosestDistance = Infinity;
let currentClosestKeyword;
for (const keyword of Object.keys(cssKeywords)) {
const value = cssKeywords[keyword];
// Compute comparative distance
const distance = comparativeDistance(rgb, value);
// Check if its less, if so set as closest
if ((await distance) < currentClosestDistance) {
// @ts-ignore
currentClosestDistance = distance;
currentClosestKeyword = keyword;
}
}
return currentClosestKeyword;
}
async function ConvertKeywordToRgb(keyword) {
return cssKeywords[keyword];
}
async function ConvertRgbToXyz(rgb) {
let r = rgb[0] / 255;
let g = rgb[1] / 255;
let b = rgb[2] / 255;
// Assume sRGB
r = r > 0.04045 ? ((r + 0.055) / 1.055) ** 2.4 : r / 12.92;
g = g > 0.04045 ? ((g + 0.055) / 1.055) ** 2.4 : g / 12.92;
b = b > 0.04045 ? ((b + 0.055) / 1.055) ** 2.4 : b / 12.92;
const x = r * 0.4124564 + g * 0.3575761 + b * 0.1804375;
const y = r * 0.2126729 + g * 0.7151522 + b * 0.072175;
const z = r * 0.0193339 + g * 0.119192 + b * 0.9503041;
return [x * 100, y * 100, z * 100];
}
async function ConvertRgbToXy(rgb) {
let r = rgb[0] / 255;
let g = rgb[1] / 255;
let b = rgb[2] / 255;
// Assume sRGB
r = r > 0.04045 ? ((r + 0.055) / 1.055) ** 2.4 : r / 12.92;
g = g > 0.04045 ? ((g + 0.055) / 1.055) ** 2.4 : g / 12.92;
b = b > 0.04045 ? ((b + 0.055) / 1.055) ** 2.4 : b / 12.92;
const x = r * 0.4124564 + g * 0.3575761 + b * 0.1804375;
const y = r * 0.2126729 + g * 0.7151522 + b * 0.072175;
const z = r * 0.0193339 + g * 0.119192 + b * 0.9503041;
const X = x / (x + y + z);
const Y = y / (x + y + z);
return [X, Y];
//return X + "," + Y;
}
async function ConvertRgbToLab(rgb) {
const xyz = ConvertRgbToXyz(rgb);
let x = xyz[0];
let y = xyz[1];
let z = xyz[2];
x /= 95.047;
y /= 100;
z /= 108.883;
x = x > 0.008856 ? x ** (1 / 3) : 7.787 * x + 16 / 116;
y = y > 0.008856 ? y ** (1 / 3) : 7.787 * y + 16 / 116;
z = z > 0.008856 ? z ** (1 / 3) : 7.787 * z + 16 / 116;
const l = 116 * y - 16;
const a = 500 * (x - y);
const b = 200 * (y - z);
return [l, a, b];
}
async function ConvertRgbToHex(args) {
const integer =
((Math.round(args[0]) & 0xff) << 16) + ((Math.round(args[1]) & 0xff) << 8) + (Math.round(args[2]) & 0xff);
const string = integer.toString(16).toUpperCase();
return "000000".substring(string.length) + string;
}
async function ConvertHexToRgb(args) {
const match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
if (!match) {
return [0, 0, 0];
}
let colorString = match[0];
if (match[0].length === 3) {
colorString = colorString
.split("")
.map((char) => {
return char + char;
})
.join("");
}
const integer = parseInt(colorString, 16);
const r = (integer >> 16) & 0xff;
const g = (integer >> 8) & 0xff;
const b = integer & 0xff;
return [r, g, b];
}
const cssKeywords = {
aliceblue: [240, 248, 255],
antiquewhite: [250, 235, 215],
aqua: [0, 255, 255],
aquamarine: [127, 255, 212],
azure: [240, 255, 255],
beige: [245, 245, 220],
bisque: [255, 228, 196],
black: [0, 0, 0],
blanchedalmond: [255, 235, 205],
blue: [0, 0, 255],
blueviolet: [138, 43, 226],
brown: [165, 42, 42],
burlywood: [222, 184, 135],
cadetblue: [95, 158, 160],
chartreuse: [127, 255, 0],
chocolate: [210, 105, 30],
coral: [255, 127, 80],
cornflowerblue: [100, 149, 237],
cornsilk: [255, 248, 220],
crimson: [220, 20, 60],
cyan: [0, 255, 255],
darkblue: [0, 0, 139],
darkcyan: [0, 139, 139],
darkgoldenrod: [184, 134, 11],
darkgray: [169, 169, 169],
darkgreen: [0, 100, 0],
darkgrey: [169, 169, 169],
darkkhaki: [189, 183, 107],
darkmagenta: [139, 0, 139],
darkolivegreen: [85, 107, 47],
darkorange: [255, 140, 0],
darkorchid: [153, 50, 204],
darkred: [139, 0, 0],
darksalmon: [233, 150, 122],
darkseagreen: [143, 188, 143],
darkslateblue: [72, 61, 139],
darkslategray: [47, 79, 79],
darkslategrey: [47, 79, 79],
darkturquoise: [0, 206, 209],
darkviolet: [148, 0, 211],
deeppink: [255, 20, 147],
deepskyblue: [0, 191, 255],
dimgray: [105, 105, 105],
dimgrey: [105, 105, 105],
dodgerblue: [30, 144, 255],
firebrick: [178, 34, 34],
floralwhite: [255, 250, 240],
forestgreen: [34, 139, 34],
fuchsia: [255, 0, 255],
gainsboro: [220, 220, 220],
ghostwhite: [248, 248, 255],
gold: [255, 215, 0],
goldenrod: [218, 165, 32],
gray: [128, 128, 128],
green: [0, 128, 0],
greenyellow: [173, 255, 47],
grey: [128, 128, 128],
honeydew: [240, 255, 240],
hotpink: [255, 105, 180],
indianred: [205, 92, 92],
indigo: [75, 0, 130],
ivory: [255, 255, 240],
khaki: [240, 230, 140],
lavender: [230, 230, 250],
lavenderblush: [255, 240, 245],
lawngreen: [124, 252, 0],
lemonchiffon: [255, 250, 205],
lightblue: [173, 216, 230],
lightcoral: [240, 128, 128],
lightcyan: [224, 255, 255],
lightgoldenrodyellow: [250, 250, 210],
lightgray: [211, 211, 211],
lightgreen: [144, 238, 144],
lightgrey: [211, 211, 211],
lightpink: [255, 182, 193],
lightsalmon: [255, 160, 122],
lightseagreen: [32, 178, 170],
lightskyblue: [135, 206, 250],
lightslategray: [119, 136, 153],
lightslategrey: [119, 136, 153],
lightsteelblue: [176, 196, 222],
lightyellow: [255, 255, 224],
lime: [0, 255, 0],
limegreen: [50, 205, 50],
linen: [250, 240, 230],
magenta: [255, 0, 255],
maroon: [128, 0, 0],
mediumaquamarine: [102, 205, 170],
mediumblue: [0, 0, 205],
mediumorchid: [186, 85, 211],
mediumpurple: [147, 112, 219],
mediumseagreen: [60, 179, 113],
mediumslateblue: [123, 104, 238],
mediumspringgreen: [0, 250, 154],
mediumturquoise: [72, 209, 204],
mediumvioletred: [199, 21, 133],
midnightblue: [25, 25, 112],
mintcream: [245, 255, 250],
mistyrose: [255, 228, 225],
moccasin: [255, 228, 181],
navajowhite: [255, 222, 173],
navy: [0, 0, 128],
oldlace: [253, 245, 230],
olive: [128, 128, 0],
olivedrab: [107, 142, 35],
orange: [255, 165, 0],
orangered: [255, 69, 0],
orchid: [218, 112, 214],
palegoldenrod: [238, 232, 170],
palegreen: [152, 251, 152],
paleturquoise: [175, 238, 238],
palevioletred: [219, 112, 147],
papayawhip: [255, 239, 213],
peachpuff: [255, 218, 185],
peru: [205, 133, 63],
pink: [255, 192, 203],
plum: [221, 160, 221],
powderblue: [176, 224, 230],
purple: [128, 0, 128],
rebeccapurple: [102, 51, 153],
red: [255, 0, 0],
rosybrown: [188, 143, 143],
royalblue: [65, 105, 225],
saddlebrown: [139, 69, 19],
salmon: [250, 128, 114],
sandybrown: [244, 164, 96],
seagreen: [46, 139, 87],
seashell: [255, 245, 238],
sienna: [160, 82, 45],
silver: [192, 192, 192],
skyblue: [135, 206, 235],
slateblue: [106, 90, 205],
slategray: [112, 128, 144],
slategrey: [112, 128, 144],
snow: [255, 250, 250],
springgreen: [0, 255, 127],
steelblue: [70, 130, 180],
tan: [210, 180, 140],
teal: [0, 128, 128],
thistle: [216, 191, 216],
tomato: [255, 99, 71],
turquoise: [64, 224, 208],
violet: [238, 130, 238],
wheat: [245, 222, 179],
white: [255, 255, 255],
whitesmoke: [245, 245, 245],
yellow: [255, 255, 0],
yellowgreen: [154, 205, 50],
};
// NOTE: conversions should only return primitive values (i.e. arrays, or
// values that give correct `typeof` results).
// do not use box values types (i.e. Number(), String(), etc.)
const reverseKeywords = {};
for (const key of Object.keys(cssKeywords)) {
reverseKeywords[cssKeywords[key]] = key;
}
module.exports = {
ConvertHexToRgb,
ConvertHsvToRgb,
ConvertKeywordToRgb,
ConvertRgbToCmyk,
ConvertRgbToHex,
ConvertRgbToHsl,
ConvertRgbToHsv,
ConvertRgbToKeyword,
ConvertRgbToLab,
ConvertRgbToXy,
ConvertRgbToXyz,
};