/**
* Set instance.
* @return Exception|ImageText
* @throws Exception
*/
private static function _instance()
{
try {
$file = DOCROOT . self::DEFAULT_PATH . self::DEFAULT_FONT;
if (!file_exists($file)) {
throw new Exception("Error: has not font file " . __METHOD__ . " => {$file}");
}
self::$_instance = new self();
} catch (Exception $e) {
throw $e;
}
return self::$_instance;
}
