# File lib/prawn/text/box.rb, line 203
      def height
        return 0 if @baseline_y.nil? || @descender.nil?
        # baseline is already pushed down one line below the current
        # line, so we need to subtract line line_height and leading,
        # but we need to add in the descender since baseline is
        # above the descender
        @baseline_y.abs + @descender - @line_height - @leading
      end