public function widget( $args, $instance ) {

		if( !has_shortcode(get_the_content(), MP_Addon_CalculatorsMortgagePayoffAddon::$shortcode_widget ) ) {
			/**
			 * Widget title filter.
			 *
			 * @param mixed $instance ['title'] title
			 */
		    $title       = apply_filters('widget_title', $instance['title'] );
			// before and after widget arguments are defined by themes
			echo $args['before_widget'];
			if ( $title ) {
				echo $args['before_title'] . $title . $args['after_title'];
			}
			$calculator = "[".MP_Addon_CalculatorsMortgagePayoffAddon::$shortcode_widget."]";
			echo do_shortcode($calculator);
			echo $args['after_widget'];
		}

	}