draw_label (Gruff::SideBar)

    # File lib/gruff/side_bar.rb, line 98
      def draw_label(y_offset, index)
        if !@labels[index].nil? && @labels_seen[index].nil?
          @d.fill             = @font_color
          @d.font             = @font if @font
          @d.stroke           = 'transparent'
          @d.font_weight      = NormalWeight
          @d.pointsize        = scale_fontsize(@marker_font_size)
          @d.gravity          = EastGravity
          @d                  = @d.annotate_scaled(@base_image,
                                  1, 1,
                                  -@graph_left + LABEL_MARGIN * 2.0, y_offset,
                                  @labels[index], @scale)
          @labels_seen[index] = 1
        end
      end