64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
|
import { ElMessage } from 'element-plus';
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 颜色转换函数
|
|||
|
|
* @method hexToRgb hex 颜色转 rgb 颜色
|
|||
|
|
* @method rgbToHex rgb 颜色转 Hex 颜色
|
|||
|
|
* @method getDarkColor 加深颜色值
|
|||
|
|
* @method getLightColor 变浅颜色值
|
|||
|
|
*/
|
|||
|
|
export function useChangeColor() {
|
|||
|
|
// str 颜色值字符串
|
|||
|
|
const hexToRgb = (str) => {
|
|||
|
|
let hexs = '';
|
|||
|
|
let reg = /^\#?[0-9A-Fa-f]{6}$/;
|
|||
|
|
if (!reg.test(str)) {
|
|||
|
|
ElMessage.warning('输入错误的hex');
|
|||
|
|
return '';
|
|||
|
|
}
|
|||
|
|
str = str.replace('#', '');
|
|||
|
|
hexs = str.match(/../g);
|
|||
|
|
for (let i = 0; i < 3; i++) hexs[i] = parseInt(hexs[i], 16);
|
|||
|
|
return hexs;
|
|||
|
|
};
|
|||
|
|
// r 代表红色 | g 代表绿色 | b 代表蓝色
|
|||
|
|
const rgbToHex = (r, g, b) => {
|
|||
|
|
let reg = /^\d{1,3}$/;
|
|||
|
|
if (!reg.test(r) || !reg.test(g) || !reg.test(b)) {
|
|||
|
|
ElMessage.warning('输入错误的rgb颜色值');
|
|||
|
|
return '';
|
|||
|
|
}
|
|||
|
|
let hexs = [r.toString(16), g.toString(16), b.toString(16)];
|
|||
|
|
for (let i = 0; i < 3; i++) if (hexs[i].length == 1) hexs[i] = `0${hexs[i]}`;
|
|||
|
|
return `#${hexs.join('')}`;
|
|||
|
|
};
|
|||
|
|
// color 颜色值字符串 | level 变浅的程度，限0-1之间
|
|||
|
|
const getDarkColor = (color, level) => {
|
|||
|
|
let reg = /^\#?[0-9A-Fa-f]{6}$/;
|
|||
|
|
if (!reg.test(color)) {
|
|||
|
|
ElMessage.warning('输入错误的hex颜色值');
|
|||
|
|
return '';
|
|||
|
|
}
|
|||
|
|
let rgb = useChangeColor().hexToRgb(color);
|
|||
|
|
for (let i = 0; i < 3; i++) rgb[i] = Math.floor(rgb[i] * (1 - level));
|
|||
|
|
return useChangeColor().rgbToHex(rgb[0], rgb[1], rgb[2]);
|
|||
|
|
};
|
|||
|
|
// color 颜色值字符串 | level 加深的程度，限0-1之间
|
|||
|
|
const getLightColor = (color, level) => {
|
|||
|
|
let reg = /^\#?[0-9A-Fa-f]{6}$/;
|
|||
|
|
if (!reg.test(color)) {
|
|||
|
|
ElMessage.warning('输入错误的hex颜色值');
|
|||
|
|
return '';
|
|||
|
|
}
|
|||
|
|
let rgb = useChangeColor().hexToRgb(color);
|
|||
|
|
for (let i = 0; i < 3; i++) rgb[i] = Math.floor((255 - rgb[i]) * level + rgb[i]);
|
|||
|
|
return useChangeColor().rgbToHex(rgb[0], rgb[1], rgb[2]);
|
|||
|
|
};
|
|||
|
|
return {
|
|||
|
|
hexToRgb,
|
|||
|
|
rgbToHex,
|
|||
|
|
getDarkColor,
|
|||
|
|
getLightColor,
|
|||
|
|
};
|
|||
|
|
}
|