/**
*Get the tracking values for the current font size
* @returns array $values of floats. $values[0] is the minimum, $values[1] is the maximum or null if
* if there is no tracking values
*/
public function getTrackingValues()
{
if ($this->direction != -1) {
return $this->font_metrics[$this->direction]->getTrackingValues();
} else {
return parent::getTrackingValues();
}
}
