zent/es/utils/tinycolor/conversion.js

一套前端设计语言和基于React的实现

import { bound01, pad2 } from './util';
export function rgbToRgb(r, g, b) {
    return {
        r: bound01(r, 255) * 255,
        g: bound01(g, 255) * 255,
        b: bound01(b, 255) * 255,
    };
}
export function rgbToHsl(r, g, b) {
    r = bound01(r, 255);
    g = bound01(g, 255);
    b = bound01(b, 255);
    var max = Math.max(r, g, b);
    var min = Math.min(r, g, b);
    var h = 0;
    var s = 0;
    var l = (max + min) / 2;
    if (max === min) {
        s = 0;
        h = 0;
    }
    else {
        var d = max - min;
        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
        switch (max) {
            case r:
                h = (g - b) / d + (g < b ? 6 : 0);
                break;
            case g:
                h = (b - r) / d + 2;
                break;
            case b:
                h = (r - g) / d + 4;
                break;
            default:
                break;
        }
        h /= 6;
    }
    return { h: h, s: s, l: l };
}
export function hslToRgb(h, s, l) {
    var r;
    var g;
    var b;
    h = bound01(h, 360);
    s = bound01(s, 100);
    l = bound01(l, 100);
    function hue2rgb(p, q, t) {
        if (t < 0) {
            t += 1;
        }
        if (t > 1) {
            t -= 1;
        }
        if (t < 1 / 6) {
            return p + (q - p) * (6 * t);
        }
        if (t < 1 / 2) {
            return q;
        }
        if (t < 2 / 3) {
            return p + (q - p) * (2 / 3 - t) * 6;
        }
        return p;
    }
    if (s === 0) {
        g = l;
        b = l;
        r = l;
    }
    else {
        var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
        var p = 2 * l - q;
        r = hue2rgb(p, q, h + 1 / 3);
        g = hue2rgb(p, q, h);
        b = hue2rgb(p, q, h - 1 / 3);
    }
    return { r: r * 255, g: g * 255, b: b * 255 };
}
export function rgbToHsv(r, g, b) {
    r = bound01(r, 255);
    g = bound01(g, 255);
    b = bound01(b, 255);
    var max = Math.max(r, g, b);
    var min = Math.min(r, g, b);
    var h = 0;
    var v = max;
    var d = max - min;
    var s = max === 0 ? 0 : d / max;
    if (max === min) {
        h = 0;
    }
    else {
        switch (max) {
            case r:
                h = (g - b) / d + (g < b ? 6 : 0);
                break;
            case g:
                h = (b - r) / d + 2;
                break;
            case b:
                h = (r - g) / d + 4;
                break;
            default:
                break;
        }
        h /= 6;
    }
    return { h: h, s: s, v: v };
}
export function hsvToRgb(h, s, v) {
    h = bound01(h, 360) * 6;
    s = bound01(s, 100);
    v = bound01(v, 100);
    var i = Math.floor(h);
    var f = h - i;
    var p = v * (1 - s);
    var q = v * (1 - f * s);
    var t = v * (1 - (1 - f) * s);
    var mod = i % 6;
    var r = [v, q, p, p, t, v][mod];
    var g = [t, v, v, q, p, p][mod];
    var b = [p, p, t, v, v, q][mod];
    return { r: r * 255, g: g * 255, b: b * 255 };
}
export function rgbToHex(r, g, b, allow3Char) {
    var hex = [
        pad2(Math.round(r).toString(16)),
        pad2(Math.round(g).toString(16)),
        pad2(Math.round(b).toString(16)),
    ];
    if (allow3Char &&
        hex[0].charAt(0) === hex[0].charAt(1) &&
        hex[1].charAt(0) === hex[1].charAt(1) &&
        hex[2].charAt(0) === hex[2].charAt(1)) {
        return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
    }
    return hex.join('');
}
export function convertHexToDecimal(h) {
    return parseIntFromHex(h) / 255;
}
export function parseIntFromHex(val) {
    return parseInt(val, 16);
}