# File lib/ruport/formatter/text.rb, line 192
    def calculate_max_col_widths
      # allow override
      return if max_col_width

      options.max_col_width = []

      unless data.column_names.empty?
        data.column_names.each_index do |i| 
          max_col_width[i] = data.column_names[i].to_s.length
        end
      end
          
      data.each { |r| max_col_widths_for_row(r) } 
    end