1 function ui.bargraph(args)

2 local text = ""

3 for i, bar in ipairs(args.bars) do

4 if #text > 0 then

5 text = text .. " / "

6 end

7 text = text .. tostring(bar.value)

8 end

9 ui.container{

10 attr = {

11 class = args.class or "bargraph",

12 title = tostring(text)

13 },

14 content = function()

15 local at_least_one_bar = false

16 local quorum = args.quorum and args.quorum * args.width / args.max_value or nil

17 local length = 0

18 local rest = 0

19 local last_visiable_bar = 0

20 for i, bar in ipairs(args.bars) do

21 if bar.value > 0 then

22 last_visiable_bar = i

23 end

24 end

25 for i, bar in ipairs(args.bars) do

26 if bar.value > 0 then

27 at_least_one_bar = true

28 local value = bar.value * args.width / args.max_value

29 if quorum and quorum <= length + value then

30 local dlength = math.max(quorum - length - 1, 0)

31 local dlength_abs = math.floor(dlength)

32 local rest = rest + dlength - dlength_abs

33 if dlength > 0 then

34 ui.container{

35 attr = {

36 style = "width: " .. tostring(dlength_abs) .. "px; background-color: " .. bar.color .. ";",

37 },

38 content = ""

39 }

40 end

41 ui.container{

42 attr = {

43 class = "quorum",

44 style = "width: 1px; background-color: " .. (args.quorum_color or "blue") ..";",

45 },

46 content = ""

47 }

48 length = dlength + 1

49 value = value - dlength

50 quorum = nil

51 end

52 local value_abs = math.floor(value)

53 rest = rest + value - value_abs

54 if i == last_visiable_bar then

55 value_abs = value_abs + rest

56 end

57 length = length + value_abs

58 ui.container{

59 attr = {

60 style = "width: " .. tostring(value_abs) .. "px; background-color: " .. bar.color .. ";",

61 },

62 content = ""

63 }

64 end

65 end

66 if not at_least_one_bar then

67 slot.put("&nbsp;")

68 end

69 end

70 }

71 end