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split out calcAPCAFromRGBA fn #9

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split out calcAPCAFromRGBA fn #9

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8 changes: 6 additions & 2 deletions src/apca-w3.js
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Expand Up @@ -432,13 +432,17 @@ export function calcAPCA (textColor, bgColor, places = -1, round = true) {
// Note that this function requires colorParsley !!
let bgClr = colorParsley(bgColor);
let txClr = colorParsley(textColor);
return calcAPCAFromRGBA(txClr, bgClr, places, round);
} // End calcAPCA()

////////// ƒ calcAPCAFromRGBA() /////////////////////////////////////////////
export function calcAPCAFromRGBA (txClr, bgClr, places = -1, round = true) {
let hasAlpha = (txClr[3] == '' || txClr[3] == 1) ? false : true ;

if (hasAlpha) { txClr = alphaBlend( txClr, bgClr, round); };

return APCAcontrast( sRGBtoY(txClr), sRGBtoY(bgClr), places)
} // End calcAPCA()

} // End calcAPCAFromRGBA()



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