tdesign-miniprogram
Version:
tdesign-miniprogram
1 lines • 928 B
JavaScript
export const rgb2cmyk=(t,r,e)=>{let n=0,o=0,c=0,a=0;const s=parseInt(`${t}`.replace(/\s/g,""),10),m=parseInt(`${r}`.replace(/\s/g,""),10),u=parseInt(`${e}`.replace(/\s/g,""),10);if(0===s&&0===m&&0===u)return a=1,[0,0,0,1];n=1-s/255,o=1-m/255,c=1-u/255;const p=Math.min(n,Math.min(o,c));return n=(n-p)/(1-p),o=(o-p)/(1-p),c=(c-p)/(1-p),a=p,[n,o,c,a]};export const cmyk2rgb=(t,r,e,n)=>{let o=t/100,c=r/100,a=e/100;const s=n/100;o=o*(1-s)+s,c=c*(1-s)+s,a=a*(1-s)+s;let m=1-o,u=1-c,p=1-a;return m=Math.round(255*m),u=Math.round(255*u),p=Math.round(255*p),{r:m,g:u,b:p}};const REG_CMYK_STRING=/cmyk\((\d+%?),(\d+%?),(\d+%?),(\d+%?)\)/,toNumber=t=>Math.max(0,Math.min(255,parseInt(t,10)));export const cmykInputToColor=t=>{if(/cmyk/i.test(t)){const r=t.replace(/\s/g,"").match(REG_CMYK_STRING),e=toNumber(r[1]),n=toNumber(r[2]),o=toNumber(r[3]),c=toNumber(r[4]),{r:a,g:s,b:m}=cmyk2rgb(e,n,o,c);return`rgb(${a}, ${s}, ${m})`}return t};