/** *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(); } }