private static function Kint_Parsers_Color::_RGBtoHSL in Devel 8.2

Same name and namespace in other branches

1. 8 kint/kint/parsers/custom/color.php \Kint_Parsers_Color::_RGBtoHSL()

1 call to Kint_Parsers_Color::_RGBtoHSL()

Kint_Parsers_Color::_convert in kint/kint/parsers/custom/color.php

File

kint/kint/parsers/custom/color.php, line 209

Class

Kint_Parsers_Color

Code

private static function _RGBtoHSL(array $rgb) {
  list($clrR, $clrG, $clrB) = $rgb;
  $clrMin = min($clrR, $clrG, $clrB);
  $clrMax = max($clrR, $clrG, $clrB);
  $deltaMax = $clrMax - $clrMin;
  $L = ($clrMax + $clrMin) / 510;
  if (0 == $deltaMax) {
    $H = 0;
    $S = 0;
  }
  else {
    if (0.5 > $L) {
      $S = $deltaMax / ($clrMax + $clrMin);
    }
    else {
      $S = $deltaMax / (510 - $clrMax - $clrMin);
    }
    if ($clrMax == $clrR) {
      $H = ($clrG - $clrB) / (6.0 * $deltaMax);
    }
    else {
      if ($clrMax == $clrG) {
        $H = 1 / 3 + ($clrB - $clrR) / (6.0 * $deltaMax);
      }
      else {
        $H = 2 / 3 + ($clrR - $clrG) / (6.0 * $deltaMax);
      }
    }
    if (0 > $H) {
      $H += 1;
    }
    if (1 < $H) {
      $H -= 1;
    }
  }
  return array(
    round($H * 360),
    round($S * 100) . '%',
    round($L * 100) . '%',
  );
}