private function CSSmin::rgb_to_hex in Advanced CSS/JS Aggregation 8.2

Same name and namespace in other branches

1. 8.3 advagg_css_minify/yui/CSSMin.inc \CSSmin::rgb_to_hex()
2. 6 advagg_css_compress/yui/CSSMin.inc \CSSmin::rgb_to_hex()

1 call to CSSmin::rgb_to_hex()

CSSmin::hsl_to_hex in advagg_css_minify/yui/CSSMin.inc

File

advagg_css_minify/yui/CSSMin.inc, line 618

Class

CSSmin

Code

private function rgb_to_hex($matches) {

  // Support for percentage values rgb(100%, 0%, 45%);
  if ($this
    ->index_of($matches[1], '%') >= 0) {
    $rgbcolors = explode(',', str_replace('%', '', $matches[1]));
    for ($i = 0; $i < count($rgbcolors); $i++) {
      $rgbcolors[$i] = $this
        ->round_number(floatval($rgbcolors[$i]) * 2.55);
    }
  }
  else {
    $rgbcolors = explode(',', $matches[1]);
  }

  // Values outside the sRGB color space should be clipped (0-255)
  for ($i = 0; $i < count($rgbcolors); $i++) {
    $rgbcolors[$i] = $this
      ->clamp_number(intval($rgbcolors[$i], 10), 0, 255);
    $rgbcolors[$i] = sprintf("%02x", $rgbcolors[$i]);
  }

  // Fix for issue #2528093
  if (!preg_match('/[\\s\\,\\);\\}]/', $matches[2])) {
    $matches[2] = ' ' . $matches[2];
  }
  return '#' . implode('', $rgbcolors) . $matches[2];
}