# File ../lib/fox/glgroup.rb, line 59
    def bounds
      box = nil
      if @list.empty?
        box = FXRange.new(0.0, 0.0, 0.0, 0.0, 0.0, 0.0)
      else
        box = FXRange.new(FLT_MAX, -FLT_MAX, FLT_MAX, -FLT_MAX, FLT_MAX, -FLT_MAX)
        @list.each { |obj| box.include(obj.bounds) }
      end
      box
    end