# File lib/luck/listbox.rb, line 27
  def fit_data offset=nil
    lines = 0
    items = 0
    
    data[offset || @offset, height].each do |line|
      _height = line_height(line)
      if _height + lines > height
        break
      else
        lines += _height
        items += 1
      end
    end
    
    [lines, items]
  end