/**
* Send message or command to buffer
* @param string $text
*/
public function text($text = '')
{
$this->buffer->write($text);
}
/**
* Wrapper for GS ( L, to calculate and send correct data length.
*
* @param string $m Modifier/variant for function. Usually '0'.
* @param string $fn Function number to use, as character.
* @param string $data Data to send.
*/
protected function sendGraphicsData($m, $fn, $data = '')
{
$header = $this->intLowHigh(strlen($data) + 2, 2);
$this->buffer->write(self::GS . '(L' . $header . $m . $fn . $data);
}
