/**
* 2015-12-08
* @return string
*/
public function nameColorsSizeMargin()
{
if (!isset($this->{__METHOD__})) {
$this->{__METHOD__} = implode('_', ['s' . df_pad0(2, $this->params()->fontSize()), 'f' . implode('-', $this->params()->fontColor()), 'b' . implode('-', $this->params()->bgColor()), 'm' . $this->params()->marginLeft()]);
}
return $this->{__METHOD__};
}
/**
* 2015-11-29
* @uses dechex()
* http://php.net/manual/function.dechex.php
* http://stackoverflow.com/a/15202156
* @param int[] $rgb
* @param string $prefix [optional]
* @return string
*/
function df_rgb2hex(array $rgb, $prefix = '')
{
return $prefix . df_pad0(6, implode(array_map('dechex', df_int($rgb))));
}