# File lib/luck/listbox.rb, line 60
  def fit_data_back offset=nil
    lines = -1
    items = 0
    
    offset ||= @offset
    data[([offset - height,0].max)..([offset,0].max)].reverse.each do |line|
      _height = line_height(line)
      if _height + lines >= height
        break
      else
        lines += _height
        items += 1
      end
    end
    
    [lines, items]
  end