scroll_down (Raggle::Interfaces::NcursesInterface::TextWindow)

    # File raggle, line 3215
            def scroll_down
              # This is a *terrible* way to figure out how many lines of text we'll end
              # up with.., XXX put me somewhere better.
              item = @items[0]
              item = {} if item == nil
              s = item['fmt_content_num_lines'] ||
                  reflow_string(item['content']).lines
              @offset += 1 if @offset < s - 1
              draw_items
            end