'Update the location and the size of the bbox
(FancyBboxPatch), and draw'

def _draw_bbox(self, renderer, posx, posy):

    (x_box, y_box, w_box, h_box) = _get_textbox(self, renderer)
    self._bbox_patch.set_bounds(0.0, 0.0, w_box, h_box)
    theta = np.deg2rad(self.get_rotation())
    tr = mtransforms.Affine2D().rotate(theta)
    tr = tr.translate((posx + x_box), (posy + y_box))
    self._bbox_patch.set_transform(tr)
    fontsize_in_pixel = renderer.points_to_pixels(self.get_size())
    self._bbox_patch.set_mutation_scale(fontsize_in_pixel)
    self._bbox_patch.draw(renderer)
