Use precalculated RGB colors for performance

This commit is contained in:
Hamcha 2020-06-21 20:50:44 +02:00
parent 389a5b33d0
commit 404b74321b
Signed by: hamcha
GPG key ID: 41467804B19A3315

View file

@ -1,3 +1,163 @@
/* https://developer.mozilla.org/en-US/docs/Web/CSS/color_value
$$('#colors_table tbody tr')
.map((row) => {
const [name, hex] = Array.from(row.children).slice(-3);
return [name.innerText.trim().replace(/\s.+/g, ''), hex.innerText.trim()];
}).sort((a, b) => [a[0], b[0]].sort()[0] === a[0] ? -1 : 1)
.map(([name, hex]) => `${name} : '${hex}',`)
.join('\n')
*/
const namedColors = {
aliceblue: "#f0f8ff",
antiquewhite: "#faebd7",
aqua: "#00ffff",
aquamarine: "#7fffd4",
azure: "#f0ffff",
beige: "#f5f5dc",
bisque: "#ffe4c4",
black: "#000000",
blanchedalmond: "#ffebcd",
blue: "#0000ff",
blueviolet: "#8a2be2",
brown: "#a52a2a",
burlywood: "#deb887",
cadetblue: "#5f9ea0",
chartreuse: "#7fff00",
chocolate: "#d2691e",
coral: "#ff7f50",
cornflowerblue: "#6495ed",
cornsilk: "#fff8dc",
crimson: "#dc143c",
cyan: "#00ffff",
darkblue: "#00008b",
darkcyan: "#008b8b",
darkgoldenrod: "#b8860b",
darkgray: "#a9a9a9",
darkgreen: "#006400",
darkgrey: "#a9a9a9",
darkkhaki: "#bdb76b",
darkmagenta: "#8b008b",
darkolivegreen: "#556b2f",
darkorange: "#ff8c00",
darkorchid: "#9932cc",
darkred: "#8b0000",
darksalmon: "#e9967a",
darkseagreen: "#8fbc8f",
darkslateblue: "#483d8b",
darkslategray: "#2f4f4f",
darkslategrey: "#2f4f4f",
darkturquoise: "#00ced1",
darkviolet: "#9400d3",
deeppink: "#ff1493",
deepskyblue: "#00bfff",
dimgray: "#696969",
dimgrey: "#696969",
dodgerblue: "#1e90ff",
firebrick: "#b22222",
floralwhite: "#fffaf0",
forestgreen: "#228b22",
fuchsia: "#ff00ff",
gainsboro: "#dcdcdc",
ghostwhite: "#f8f8ff",
gold: "#ffd700",
goldenrod: "#daa520",
gray: "#808080",
green: "#008000",
greenyellow: "#adff2f",
grey: "#808080",
honeydew: "#f0fff0",
hotpink: "#ff69b4",
indianred: "#cd5c5c",
indigo: "#4b0082",
ivory: "#fffff0",
khaki: "#f0e68c",
lavender: "#e6e6fa",
lavenderblush: "#fff0f5",
lawngreen: "#7cfc00",
lemonchiffon: "#fffacd",
lightblue: "#add8e6",
lightcoral: "#f08080",
lightcyan: "#e0ffff",
lightgoldenrodyellow: "#fafad2",
lightgray: "#d3d3d3",
lightgreen: "#90ee90",
lightgrey: "#d3d3d3",
lightpink: "#ffb6c1",
lightsalmon: "#ffa07a",
lightseagreen: "#20b2aa",
lightskyblue: "#87cefa",
lightslategray: "#778899",
lightslategrey: "#778899",
lightsteelblue: "#b0c4de",
lightyellow: "#ffffe0",
lime: "#00ff00",
limegreen: "#32cd32",
linen: "#faf0e6",
magenta: "#ff00ff",
maroon: "#800000",
mediumaquamarine: "#66cdaa",
mediumblue: "#0000cd",
mediumorchid: "#ba55d3",
mediumpurple: "#9370db",
mediumseagreen: "#3cb371",
mediumslateblue: "#7b68ee",
mediumspringgreen: "#00fa9a",
mediumturquoise: "#48d1cc",
mediumvioletred: "#c71585",
midnightblue: "#191970",
mintcream: "#f5fffa",
mistyrose: "#ffe4e1",
moccasin: "#ffe4b5",
navajowhite: "#ffdead",
navy: "#000080",
oldlace: "#fdf5e6",
olive: "#808000",
olivedrab: "#6b8e23",
orange: "#ffa500",
orangered: "#ff4500",
orchid: "#da70d6",
palegoldenrod: "#eee8aa",
palegreen: "#98fb98",
paleturquoise: "#afeeee",
palevioletred: "#db7093",
papayawhip: "#ffefd5",
peachpuff: "#ffdab9",
peru: "#cd853f",
pink: "#ffc0cb",
plum: "#dda0dd",
powderblue: "#b0e0e6",
purple: "#800080",
rebeccapurple: "#663399",
red: "#ff0000",
rosybrown: "#bc8f8f",
royalblue: "#4169e1",
saddlebrown: "#8b4513",
salmon: "#fa8072",
sandybrown: "#f4a460",
seagreen: "#2e8b57",
seashell: "#fff5ee",
sienna: "#a0522d",
silver: "#c0c0c0",
skyblue: "#87ceeb",
slateblue: "#6a5acd",
slategray: "#708090",
slategrey: "#708090",
snow: "#fffafa",
springgreen: "#00ff7f",
steelblue: "#4682b4",
tan: "#d2b48c",
teal: "#008080",
thistle: "#d8bfd8",
tomato: "#ff6347",
turquoise: "#40e0d0",
violet: "#ee82ee",
wheat: "#f5deb3",
white: "#ffffff",
whitesmoke: "#f5f5f5",
yellow: "#ffff00",
yellowgreen: "#9acd32",
};
interface ColorRGB { interface ColorRGB {
r: number; r: number;
g: number; g: number;
@ -73,6 +233,10 @@ function rgbToHsv({ r, g, b }: ColorRGB): ColorHSV {
// Hacky way to get RGB values FOR SURE! // Hacky way to get RGB values FOR SURE!
function nameToRGB(name: string): ColorRGB { function nameToRGB(name: string): ColorRGB {
if (namedColors[name]) {
return parseColor(namedColors[name]);
}
// Create fake div // Create fake div
const fakeDiv = document.createElement("div"); const fakeDiv = document.createElement("div");
fakeDiv.style.color = name; fakeDiv.style.color = name;
@ -92,7 +256,7 @@ function nameToRGB(name: string): ColorRGB {
// https://stackoverflow.com/questions/11068240/what-is-the-most-efficient-way-to-parse-a-css-color-in-javascript // https://stackoverflow.com/questions/11068240/what-is-the-most-efficient-way-to-parse-a-css-color-in-javascript
function parseColor(input: string): ColorRGB { function parseColor(input: string): ColorRGB {
// Hex format // Hex format
if (input.substr(0, 1) === "#") { if (input[0] === "#") {
const collen = (input.length - 1) / 3; const collen = (input.length - 1) / 3;
const fact = [17, 1, 0.062272][collen - 1]; const fact = [17, 1, 0.062272][collen - 1];
return { return {