public function addText(string $t)
    {
        $t          = trim($t, "\r\n\t");
        $t          = str_replace([
            '<br>',
            '&nbsp;',
        ], [
            "\n",
            ' ',
        ], $t);
        $t          = strip_tags($t);
        $t          = htmlspecialchars_decode($t);
        $this->text .= $t;
    }