39 lines
1.6 KiB
TypeScript
39 lines
1.6 KiB
TypeScript
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import { ElMessage } from 'element-plus';
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// hex颜色转rgb颜色
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export function hexToRgb(str: any) {
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let hexs: any = '';
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let reg = /^\#?[0-9A-F]{6}$/;
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if (!reg.test(str)) return ElMessage({ type: 'warning', message: "输入错误的hex" });
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str = str.replace("#", "");
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hexs = str.match(/../g);
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for (let i = 0; i < 3; i++) hexs[i] = parseInt(hexs[i], 16);
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return hexs;
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}
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// rgb颜色转Hex颜色
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export function rgbToHex(r: any, g: any, b: any) {
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let reg = /^\d{1,3}$/;
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if (!reg.test(r) || !reg.test(g) || !reg.test(b)) return ElMessage({ type: 'warning', message: "输入错误的rgb颜色值" });
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let hexs = [r.toString(16), g.toString(16), b.toString(16)];
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for (let i = 0; i < 3; i++) if (hexs[i].length == 1) hexs[i] = `0${hexs[i]}`;
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return `#${hexs.join("")}`;
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}
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// 加深颜色值，level为加深的程度，限0-1之间
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export function getDarkColor(color: any, level: number) {
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let reg = /^\#?[0-9A-F]{6}$/;
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if (!reg.test(color)) return ElMessage({ type: 'warning', message: "输入错误的hex颜色值" });
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let rgb = hexToRgb(color);
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for (let i = 0; i < 3; i++) rgb[i] = Math.floor(rgb[i] * (1 - level));
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return rgbToHex(rgb[0], rgb[1], rgb[2]);
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}
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// 变浅颜色值，level为加深的程度，限0-1之间
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export function getLightColor(color: any, level: number) {
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let reg = /^\#?[0-9A-F]{6}$/;
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if (!reg.test(color)) return ElMessage({ type: 'warning', message: "输入错误的hex颜色值" });
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let rgb = hexToRgb(color);
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for (let i = 0; i < 3; i++) rgb[i] = Math.floor((255 - rgb[i]) * level + rgb[i]);
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return rgbToHex(rgb[0], rgb[1], rgb[2]);
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}
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