public function form( $instance ) {

		$title = isset( $instance['title'] ) ? $instance['title'] : '';

		// get all locations.
		$location_terms = get_terms(
			array(
				'taxonomy'   => 'location',
				'hide_empty' => false,
			)
		);

		// set.
		if ( isset( $instance['cb_display'] ) ) {
			$cb_display = $instance['cb_display'];
		} else {
			// majority of dealers will have one address, let's precheck it for them.
			if ( count( $location_terms ) == 1 ) {
				$cb_display = array( $location_terms[0]->term_id );
			} else {
				$cb_display = array();
			}
		}

		$address_table = '<table><tbody>'
			. '<tr><td colspan="2">'
			. esc_html__( 'Select Addresses to Display', 'inventory-presser' )
			. '</td></tr>';

		// loop through each location, set up form.
		foreach ( $location_terms as $index => $term_object ) {
			$address_checkbox = sprintf(
				'<input id="%s" name="%s" value="%s" type="checkbox"%s>',
				$this->get_field_id( 'cb_title' ),
				$this->get_field_name( 'cb_display[]' ),
				$term_object->term_id,
				checked( ( in_array( $term_object->term_id, $cb_display ) ), true, false )
			);
			$address_table   .= sprintf( '<tr><td>%s</td><td>%s</td></tr>', $address_checkbox, nl2br( $term_object->description ) );
		}

		$address_table .= '</tbody></table>';

		// Widget admin form.
		?>
		<p>
		<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title:', 'inventory-presser' ); ?></label>
		<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
		</p>
		<p>
		<input type="checkbox" id="<?php echo esc_attr( $this->get_field_id( 'cb_single_line' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'cb_single_line' ) ); ?>" value="true"<?php checked( ( isset( $instance['cb_single_line'] ) && 'true' === $instance['cb_single_line'] ) ); ?>>
		<label for="<?php echo esc_attr( $this->get_field_id( 'cb_single_line' ) ); ?>"><?php esc_html_e( 'Single Line Display', 'inventory-presser' ); ?></label>
		</p>
		<p><?php echo $address_table; ?></p>
		<?php
	}