/**
* Returns the luma
*
* @param boolean $raw Return raw value?
* @return mixed ILess_Node_Dimension if $raw is false
*/
public function getLuma($raw = false)
{
return $raw ? $this->color->getLuma() : new ILess_Node_Dimension(ILess_Math::clean(ILess_Math::multiply(ILess_Math::round(ILess_Math::multiply($this->color->getLuma(), $this->color->getAlpha()), 2), 100)), '%');
}
/**
* Converts the $number to "real" number
*
* @param ILess_Node_Dimension|integer|float $number
* @return double
* @throws InvalidArgumentException
*/
public function number($number)
{
if ($number instanceof ILess_Node_Dimension) {
return $number->unit->is('%') ? ILess_Math::clean(ILess_Math::divide($number->value, '100')) : $number->value;
} elseif (is_numeric($number)) {
return $number;
} else {
throw new InvalidArgumentException(sprintf('Color functions take numbers as parameters. "%s" given.', gettype($number)));
}
}
/**
* Returns the string representation in ARGB model
*
* @return string
*/
public function toARGB()
{
$argb = array_merge(array(ILess_Math::clean(ILess_Math::round($this->alpha * 256))), $this->rgb);
$result = '';
foreach ($argb as $i) {
$i = ILess_Math::round($i);
$i = dechex($i > 255 ? 255 : ($i < 0 ? 0 : $i));
$result .= str_pad($i, 2, '0', STR_PAD_LEFT);
}
return '#' . $result;
}
