Module:Chart: Difference between revisions

Revision as of 15:32, 8 April 2013

Latest revision as of 15:38, 18 July 2025

(64 intermediate revisions by 20 users not shown)

Line 1:

--[[

keywords are used for languages: they are the names of the actual

next 100 lines or so are copied from mw.text package, which is not yet available.

parameters of the template

once this library is added to wmf distributions, the whole chunk should be removed

]]

u = require( "libraryUtil" )

mw = mw or {}

mw.text = mw.text or {}

local htmlencode_map = {

['>'] = '>',

['<'] = '&lt;',

['&'] = '&amp;',

['"'] = '&quot;',

["'"] = '&#039;',

['\194\160'] = '&#nbsp;',

}

local htmldecode_map = {}

for k, v in pairs( htmlencode_map ) do

htmldecode_map[v] = k

end

local decode_named_entities = nil

local keywords = {

function mw.text.encode( s, charset )

barChart = 'bar chart',

charset = charset or '<>&"\'\194\160'

pieChart = 'pie chart',

s = mw.ustring.gsub( s, '[' .. charset .. ']', function ( m )

width = 'width',

if not htmlencode_map[m] then

height = 'height',

local e = string.format( '&#%d;', mw.ustring.codepoint( m ) )

stack = 'stack',

htmlencode_map[m] = e

colors = 'colors',

htmldecode_map[e] = m

group = 'group',

end

xlegend = 'x legends',

return htmlencode_map[m]

yticks = 'y tick marks',

end )

tooltip = 'tooltip',

return s

accumulateTooltip = 'tooltip value accumulation',

end

links = 'links',

function mw.text.split( text, pattern, plain )

defcolor = 'default color',

local ret = {}

scalePerGroup = 'scale per group',

for m in gsplit( text, pattern, plain ) do

unitsPrefix = 'units prefix',

ret[#ret+1] = m

unitsSuffix = 'units suffix',

end

groupNames = 'group names',

return ret

hideGroupLegends = 'hide group legends',

slices = 'slices',

slice = 'slice',

radius = 'radius',

percent = 'percent',

} -- here is what you want to translate

local defColors = mw.loadData("Module:Chart/Default colors")

local hideGroupLegends

local function nulOrWhitespace( s )

return not s or mw.text.trim( s ) == ''

end

local function mw.text.gsplitcreateGroupList( texttab, patternlegends, plaincols )

if #legends > 1 and not hideGroupLegends then

local s, l = 1, mw.ustring.len( text )

table.insert( tab, mw.text.tag( 'div' ) )

return function ()

local list = {}

if s then

local spanStyle = "padding:0 1em;background-color:%s;border:1px solid %s;margin-right:1em;-webkit-print-color-adjust:exact;"

local e, n = mw.ustring.find( text, pattern, s, plain )

for gi = 1, #legends do

local ret

local span = mw.text.tag( 'span', { style = string.format( spanStyle, cols[gi], cols[gi] ) }, '&nbsp;' ) .. ' '.. legends[gi]

if not e then

table.insert( list, mw.text.tag( 'li', {}, span ) )

ret = mw.ustring.sub( text, s )

end

s = nil

table.insert( tab,

elseif n < e then

mw.text.tag( 'ul',

-- Empty separator!

{style="list-style:none;column-width:12em;"},

ret = mw.ustring.sub( text, s, e )

table.concat( list, '\n' )

if e < l then

)

s = e + 1

)

else

table.insert( tab, '</div>' )

s = nil

end

end

else

ret = e > s and mw.ustring.sub( text, s, e - 1 ) or ''

s = n + 1

end

return ret

end

end, nil, nil

end

local function mw.text.tagpieChart( name, attrs, contentframe )

local res, imslices, args = {}, {}, frame.args

local named = false

local radius

if type( name ) == 'table' then

local values, colors, names, legends, links = {}, {}, {}, {}, {}

named = true

local delimiter = args.delimiter or ':'

name, attrs, content = name.name, name.attrs, name.content

local lang = mw.getContentLanguage()

u.checkTypeForNamedArg( 'tag', 'name', name, 'string' )

u.checkTypeForNamedArg( 'tag', 'attrs', attrs, 'table', true )

else

u.checkType( 'tag', 1, name, 'string' )

u.checkType( 'tag', 2, attrs, 'table', true )

end

local retfunction =getArg( {s, '<'def, ..subst, namewith })

local result = args[keywords[s]] or def or ''

for k, v in pairs( attrs or {} ) do

if subst and with then result = string.gsub( result, subst, with ) end

if type( k ) ~= 'string' then

return result

error( "bad named argument attrs to 'tag' (keys must be strings, found " .. type( k ) .. ")",

end

2 )

end

if string.match( k, '[\t\r\n\f /<>"\'=]' ) then

error( "bad named argument attrs to 'tag' (invalid key '" .. k .. "')", 2 )

end

local tp = type( v )

if tp == 'boolean' then

if v then

ret[#ret+1] = ' ' .. k

end

elseif tp == 'string' or tp == 'number' then

ret[#ret+1] = string.format( ' %s="%s"', k, mw.text.encode( tostring( v ) ) )

else

error( "bad named argument attrs to 'tag' (value for key '" .. k .. "' may not be " .. tp .. ")", 2 )

end

end

local tpfunction = typeanalyzeParams( content )

local function addSlice( i, slice )

if content == nil then

local value, name, color, link = unpack( mw.text.split( slice, '%s*' .. delimiter .. '%s*' ) )

ret[#ret+1] = '>'

values[i] = tonumber( lang:parseFormattedNumber( value ) )

elseif content == false then

or error( string.format( 'Slice %d: "%s", first item("%s") could not be parsed as a number', i, value or '', slice ) )

ret[#ret+1] = ' />'

colors[i] = not nulOrWhitespace( color ) and color or defColors[i * 2]

elseif tp == 'string' or tp == 'number' then

ret names[#ret+1i] = name or '>'

links[i] = link

ret[#ret+1] = content

end

ret[#ret+1] = '</' .. name .. '>'

else

if named then

u.checkTypeForNamedArg( 'tag', 'content', content, 'string, number, nil, or false' )

else

u.checkType( 'tag', 3, content, 'string, number, nil, or false' )

end

end

radius = getArg( 'radius', 150 )

return table.concat( ret )

hideGroupLegends = not nulOrWhitespace( args[keywords.hideGroupLegends] )

end

local slicesStr = getArg( 'slices' )

local prefix = getArg( 'unitsPrefix', '', '_', ' ' )

local suffix = getArg( 'unitsSuffix', '', '_', ' ' )

local percent = args[keywords.percent]

local sum = 0

local i = 0

for slice in string.gmatch( slicesStr or '', "%b()" ) do

i = i + 1

addSlice( i, string.match( slice, '^%(%s*(.-)%s*%)$' ) )

end

for k, v in pairs(args) do

function mw.text.trim( s )

local ind = return mw.ustringstring.match(s k, "'^' .. keywords.slice .. '%s*+(.-)%s*d+)$"' )

if ind then addSlice( tonumber( ind ), v ) end

end

end

for _, val in ipairs( values ) do sum = sum + val end

-- everything up to here should be removed once mw.text becomes avaulable.

for i, value in ipairs( values ) do

local addprec = percent and string.format( ' (%0.1f%%)', value / sum * 100 ) or ''

legends[i] = string.format( '%s: %s%s%s%s', names[i], prefix, lang:formatNum( value ), suffix, addprec )

links[i] = mw.text.trim( links[i] or string.format( '[[#noSuchAnchor|%s]]', legends[i] ) )

end

end

local function barChartaddRes( frame... )

for _, v in localpairs( res{ =... {} ) do

table.insert( res, v )

local args = frame.args -- can be changed to frame:getParent().args

end

local values, xlegends, colors, tooltips, yscales = {}, {}, {}, {} ,{}, {}, {}

end

local groupNames, unitsSuffix, unitsPrefix, links = {}, {}, {}, {}

local width, height, stack, delimiter = 500, 350, false, ':'

local chartWidth, chartHeight, defcolor, scalePerGroup

local function createImageMap()

local keywords = {

addRes( '{{#tag:imagemap|', 'File:Circle frame.svg{{!}}' .. ( radius * 2 ) .. 'px' )

width = 'width',

addRes( unpack( imslices ) )

height = 'height',

addRes( 'desc none', '}}' )

stack = 'stack',

end

colors = 'colors',

group = 'group',

xlegend = 'x legends',

tooltip = 'tooltip',

links = 'links',

defcolor = 'default color',

scalePerGroup = 'scale per group',

unitsPrefix = 'units prefix',

unitsSuffix = 'units suffix',

groupNames = 'group names',

} -- here is where you want to translate

local function drawSlice( i, q, start )

local numGroups, numValues

local color = colors[i]

local scaleWidth

local angle = start * 2 * math.pi

local sin, cos = math.abs( math.sin( angle ) ), math.abs( math.cos( angle ) )

local wsin, wcos = sin * radius, cos * radius

local s1, s2, w1, w2, w3, w4, border

if q == 1 then

border = 'left'

w1, w2, w3, w4 = 0, 0, wsin, wcos

s1, s2 = 'bottom', 'left'

elseif q == 2 then

border = 'bottom'

w1, w2, w3, w4 = 0, wcos, wsin, 0

s1, s2 = 'bottom', 'right'

elseif q == 3 then

border = 'right'

w1, w2, w3, w4 = wsin, wcos, 0, 0

s1, s2 = 'top', 'right'

else

border = 'top'

w1, w2, w3, w4 = wsin, 0, 0, wcos

s1, s2 = 'top', 'left'

end

local style = string.format( 'border:solid transparent;position:absolute;%s:%spx;%s:%spx;width:%spx;height:%spx', s1, radius, s2, radius, radius, radius )

function nulOrWhitespace( s )

if start <= ( q - 1 ) * 0.25 then

return not s or mw.text.trim( s ) == ''

style = string.format( '%s;border:0;background-color:%s', style, color )

end

else

style = string.format( '%s;border-width:%spx %spx %spx %spx;border-%s-color:%s', style, w1, w2, w3, w4, border, color )

end

addRes( mw.text.tag( 'div', { style = style }, '' ) )

end

local function validatecreateSlices()

local function asGroupscoordsOfAngle( name, tab, toDuplicate, emptyOKangle )

return ( 100 + math.floor( 100 * math.cos( angle ) ) ) .. ' ' .. ( 100 - math.floor( 100 * math.sin( angle ) ) )

if #tab == 0 and not emptyOK then

end

error( "must supply values for " .. keywords[name] )

end

if #tab == 1 and toDuplicate then

for i = 2, numGroups do tab[i] = tab[1] end

end

if #tab > 0 and #tab ~= numGroups then

error ( keywords[name] .. ' should contain the same number of items as the number of groups (' .. numGroups .. ')')

end

end

local sum, start = 0, 0

-- do all sorts of validation here, so we can assume all params are good from now on.

for _, value in ipairs( values ) do sum = sum + value end

-- among other things, replace numerical values with mw.language:parseFormattedNumber() result

for i, value in ipairs(values) do

local poly = { 'poly 100 100' }

local startC, endC = start / sum, ( start + value ) / sum

local startQ, endQ = math.floor( startC * 4 + 1 ), math.floor( endC * 4 + 1 )

for q = startQ, math.min( endQ, 4 ) do drawSlice( i, q, startC ) end

for angle = startC * 2 * math.pi, endC * 2 * math.pi, 0.02 do

table.insert( poly, coordsOfAngle( angle ) )

end

table.insert( poly, coordsOfAngle( endC * 2 * math.pi ) .. ' 100 100 ' .. links[i] )

table.insert( imslices, table.concat( poly, ' ' ) )

start = start + values[i]

end

end

analyzeParams()

if #values == 0 then error( "no slices found - can't draw pie chart" ) end

addRes( mw.text.tag( 'div', { class = 'chart noresize', style = string.format( 'margin-top:0.5em;max-width:%spx;', radius * 2 ) } ) )

addRes( mw.text.tag( 'div', { style = string.format( 'position:relative;min-width:%spx;min-height:%spx;max-width:%spx;overflow:hidden;', radius * 2, radius * 2, radius * 2 ) } ) )

createSlices()

addRes( mw.text.tag( 'div', { style = string.format( 'position:absolute;min-width:%spx;min-height:%spx;overflow:hidden;', radius * 2, radius * 2 ) } ) )

createImageMap()

addRes( '</div>' ) -- close "position:relative" div that contains slices and imagemap.

addRes( '</div>' ) -- close "position:relative" div that contains slices and imagemap.

createGroupList( res, legends, colors ) -- legends

addRes( '</div>' ) -- close containing div

return frame:preprocess( table.concat( res, '\n' ) )

end

chartHeight = height - 80

numGroups = #values

numValues = #values[1]

defcolor = defcolor or 'blue'

colors[1] = colors[1] or defcolor

scaleWidth = scalePerGroup and 80 * numGroups or 100

chartWidth = width -scaleWidth

asGroups( 'unitsPrefix', unitsPrefix, true, true )

asGroups( 'unitsSuffix', unitsSuffix, true, true )

asGroups( 'colors', colors, true, true )

asGroups( 'groupNames', groupNames, false, false )

if stack and scalePerGroup then

error( string.format( 'Illegal settings: %s and %s are incompatible.', keyword.stack, keyword.scalePerGroup ) )

end

for gi = 2, numGroups do

if #values[gi] ~= numValues then error( keywords.group .. " " .. gi .. " does not have same number of values as " .. keywords.group .. " 1" ) end

end

if #xlegends ~= numValues then error( 'Illegal number of ' .. keywords.xlegend .. '. Should be exatly ' .. numValues ) end

end

local function barChart( frame )

function extractParams()

local res = {}

function testone( keyword, key, val, tab )

local args = frame.args -- can be changed to frame:getParent().args

i = keyword == key and 0 or key:match( keyword .. "%s+(%d+)" )

local values, xlegends, colors, tooltips, yscales = {}, {}, {}, {}, {}

if not i then return end

local groupNames, unitsSuffix, unitsPrefix, links = {}, {}, {}, {}

i = tonumber( i ) or error("Expect numerical index for key " .. keyword .. " instead of '" .. key .. "'")

local width, height, yticks, stack, delimiter = 500, 350, -1, false, args.delimiter or ':'

if i > 0 then tab[i] = {} end

local chartWidth, chartHeight, defcolor, scalePerGroup, accumulateTooltip

for s in mw.text.gsplit( val, '%s*' .. delimiter .. '%s*' ) do

table.insert( i == 0 and tab or tab[i], s )

end

return true

end

for k, v in pairs( args ) do

if k == keywords.width then

width = tonumber( v )

if not width or width < 200 then

error( 'Illegal width value (must be a number, and at least 200): ' .. v )

end

elseif k == keywords.height then

height = tonumber( v )

if not height or height < 200 then

error( 'Illegal height value (must be a number, and at least 200): ' .. v )

end

elseif k == keywords.stack then stack = true

elseif k == keywords.scalePerGroup then scalePerGroup = true

elseif k == keywords.defcolor then defcolor = v

else

for keyword, tab in pairs( {

group = values,

xlegend = xlegends,

colors = colors,

tooltip = tooltips,

unitsPrefix = unitsPrefix,

unitsSuffix = unitsSuffix,

groupNames = groupNames,

links = links,

} ) do

if testone( keywords[keyword], k, v, tab )

then break

end

end

end

end

end

local numGroups, numValues

function roundup( x ) -- returns the next round number: eg., for 30 to 39.999 will return 40, for 3000 to 3999.99 wil return 4000. for 10 - 14.999 will return 15.

local scaleWidth

local ordermag = 10 ^ math.floor( math.log10( x ) )

local normalized = x / ordermag

local top = normalized >= 1.5 and ( math.floor( normalized + 1 ) ) or 1.5

return ordermag * top, top, ordermag

end

local function validate()

function calcHeightLimits() -- if limits were passed by user, use ithem, otherwise calculate. for "stack" there's only one limet.

local function asGroups( name, tab, toDuplicate, emptyOK )

if stack then

if #tab == 0 and not emptyOK then

local sums = {}

error( "must supply values for " .. keywords[name] )

for _, group in pairs( values ) do

end

for i, val in ipairs( group ) do sums[i] = ( sums[i] or 0 ) + val end

if #tab == 1 and toDuplicate then

end

for i = 2, numGroups do tab[i] = tab[1] end

local sum = math.max( unpack( sums ) )

end

for i = 1, #values do yscales[i] = sum end

if #tab > 0 and #tab ~= numGroups then

else

error ( keywords[name] .. ' must contain the same number of items as the number of groups, but it contains ' .. #tab .. ' items and there are ' .. numGroups .. ' groups')

for i, group in ipairs( values ) do yscales[i] = math.max( unpack( group ) ) end

end

end

for i, scale in ipairs( yscales ) do yscales[i] = roundup( scale ) end

if not scalePerGroup then for i = 1, #values do yscales[i] = math.max( unpack( yscales ) ) end end

end

-- do all sorts of validation here, so we can assume all params are good from now on.

function tooltip( gi, i, val )

-- among other things, replace numerical values with mw.language:parseFormattedNumber() result

if tooltips and tooltips[gi] and not nulOrWhitespace( tooltips[gi][i] ) then return tooltips[gi][i], true end

local groupName = not nulOrWhitespace( groupNames[gi] ) and groupNames[gi] .. ': ' or ''

local prefix = unitsPrefix[gi] or unitsPrefix[1] or ''

local suffix = unitsSuffix[gi] or unitsSuffix[1] or ''

return mw.ustring.gsub(groupName .. prefix .. mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) .. suffix, '_', ' '), false

end

function calcHeights( gi, i, val )

local barHeight = math.floor( val / yscales[gi] * chartHeight )

local top, base = chartHeight - barHeight, 0

if stack then

local rawbase = 0

for j = 1, gi - 1 do rawbase = rawbase + values[j][i] end -- sum the "i" value of all the groups below our group, gi.

base = math.floor( chartHeight * rawbase / yscales[gi] ) -- normally, and especially if it's "stack", all the yscales must be equal.

end

return barHeight, top - base

end

chartHeight = height - 80

function groupBounds( i )

numGroups = #values

local setWidth = math.floor( chartWidth / numValues )

numValues = #values[1]

local setOffset = ( i - 1 ) * setWidth

defcolor = defcolor or 'blue'

return setOffset, setWidth

colors[1] = colors[1] or defcolor

end

scaleWidth = scalePerGroup and 80 * numGroups or 100

chartWidth = width - scaleWidth

asGroups( 'unitsPrefix', unitsPrefix, true, true )

asGroups( 'unitsSuffix', unitsSuffix, true, true )

asGroups( 'colors', colors, true, true )

asGroups( 'groupNames', groupNames, false, false )

if stack and scalePerGroup then

error( string.format( 'Illegal settings: %s and %s are incompatible.', keywords.stack, keywords.scalePerGroup ) )

end

for gi = 2, numGroups do

if #values[gi] ~= numValues then error( keywords.group .. " " .. gi .. " does not have same number of values as " .. keywords.group .. " 1" ) end

end

if #xlegends ~= numValues then error( 'Illegal number of ' .. keywords.xlegend .. '. Should be exactly ' .. numValues .. ' not ' .. #xlegends) end

end

local function calcxextractParams( gi, i )

local function testone( keyword, key, val, tab )

local setOffset, setWidth = groupBounds( i )

local i = keyword == key and 0 or key:match( keyword .. "%s+(%d+)" )

setWidth = 0.85 * setWidth

if not i then return end

if stack then

i = tonumber( i ) or error("Expect numerical index for key " .. keyword .. " instead of '" .. key .. "'")

local barWidth = math.min( 38, math.floor( 0.8 * setWidth ) )

if i > 0 then tab[i] = {} end

return setOffset + (setWidth - barWidth) / 2, barWidth

for s in mw.text.gsplit( val, '%s*' .. delimiter .. '%s*' ) do

end

table.insert( i == 0 and tab or tab[i], s )

local barWidth = math.floor( 0.75 * setWidth / numGroups )

end

local left = setOffset + math.floor( ( gi - 1 ) / numGroups * setWidth )

return left, barWidthtrue

end

for k, v in pairs( args ) do

function drawbar( gi, i, val )

if k == keywords.width then

local color, tooltip, custom = colors[gi] or defcolor or 'blue', tooltip( gi, i, val )

width = tonumber( v )

local left, barWidth = calcx( gi, i )

if not width or width < 200 then

local barHeight, top = calcHeights( gi, i, val )

error( 'Illegal width value (must be a number, and at least 200): ' .. v )

local style = string.format("position:absolute;left:%spx;top:%spx;height:%spx;min-width:%spx;max-width:%spx;background-color:%s;box-shadow:4px -3px 3px 1px grey;overflow:hidden;",

end

left, top, barHeight, barWidth, barWidth, color)

elseif k == keywords.height then

local link = links[gi] and links[gi][i] or ''

height = tonumber( v )

local img = not nulOrWhitespace( link ) and mw.ustring.format( '[[File:Transparent.png|1000px|link=%s|%s]]', link, custom and tooltip or '' ) or ''

if not height or height < 200 then

table.insert( res, mw.text.tag( 'div', { style = style, title = tooltip, }, img ) )

error( 'Illegal height value (must be a number, and at least 200): ' .. v )

end

end

elseif k == keywords.stack then stack = true

elseif k == keywords.yticks then yticks = tonumber(v) or -1

elseif k == keywords.scalePerGroup then scalePerGroup = true

elseif k == keywords.defcolor then defcolor = v

elseif k == keywords.accumulateTooltip then accumulateTooltip = not nulOrWhitespace( v )

elseif k == keywords.hideGroupLegends then hideGroupLegends = not nulOrWhitespace( v )

else

for keyword, tab in pairs( {

group = values,

xlegend = xlegends,

colors = colors,

tooltip = tooltips,

unitsPrefix = unitsPrefix,

unitsSuffix = unitsSuffix,

groupNames = groupNames,

links = links,

} ) do

if testone( keywords[keyword], k, v, tab )

then break

end

end

end

end

end

local function roundup( x ) -- returns the next round number: eg., for 30 to 39.999 will return 40, for 3000 to 3999.99 wil return 4000. for 10 - 14.999 will return 15.

local ordermag = 10 ^ math.floor( math.log10( x ) )

local normalized = x / ordermag

local top = normalized >= 1.5 and ( math.floor( normalized + 1 ) ) or 1.5

return ordermag * top, top, ordermag

end

local function calcHeightLimits() -- if limits were passed by user, use them, otherwise calculate. for "stack" there's only one limet.

function drawYScale()

if stack then

function drawSingle( gi, color, width, single )

local yscalesums = yscales[gi]{}

for _, group in pairs( values ) do

local _, top, ordermag = roundup( yscale * 0.999 )

for i, val in ipairs( group ) do sums[i] = ( sums[i] or 0 ) + val end

local numnotches = top <= 1.5 and top * 4

end

or top < 4 and top * 2

local sum = math.max( unpack( sums ) )

or top

for i = 1, #values do yscales[i] = sum end

local valStyleStr =

else

single and 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;padding:0 2px'

for i, group in ipairs( values ) do yscales[i] = math.max( unpack( group ) ) end

or 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;left:3px;background-color:%s;color:white;font-weight:bold;text-shadow:-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000,1px 1px 0 #000;padding:0 2px'

end

local notchStyleStr = 'position:absolute;height=1px;min-width:5px;top:%spx;left:%spx;border:1px solid %s;'

for i, scale in ipairs( yscales ) do yscales[i] = roundup( scale * 0.9999 ) end

for i = 1, numnotches do

if not scalePerGroup then for i = 1, #values do yscales[i] = math.max( unpack( yscales ) ) end end

local val = i / numnotches * yscale

end

local y = chartHeight - calcHeights( gi, 1, val )

local div = mw.text.tag( 'div', { style = string.format( valStyleStr, width - 10, y - 10, color ) }, mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) )

table.insert( res, div )

div = mw.text.tag( 'div', { style = string.format( notchStyleStr, y, width - 4, color ) }, '' )

table.insert( res, div )

end

end

local function tooltip( gi, i, val )

if scalePerGroup then

if tooltips and tooltips[gi] and not nulOrWhitespace( tooltips[gi][i] ) then return tooltips[gi][i], true end

local colWidth = 80

local groupName = mw.text.killMarkers(not nulOrWhitespace( groupNames[gi] ) and groupNames[gi] .. ': ' or '')

local colStyle = "position:absolute;height:%spx;min-width:%spx;left:%spx;border-right:1px solid %s;color:%s"

local prefix = unitsPrefix[gi] or unitsPrefix[1] or ''

for gi = 1, numGroups do

local leftsuffix = ( unitsSuffix[gi] -or unitsSuffix[1] ) *or colWidth''

return string.gsub(groupName .. prefix .. mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) .. suffix, '_', ' '), false

local color = colors[gi] or defcolor

end

table.insert( res, mw.text.tag( 'div', { style = string.format( colStyle, chartHeight, colWidth, left, color, color ) } ) )

drawSingle( gi, color, colWidth )

table.insert( res, '</div>' )

end

else

drawSingle( 1, 'black', scaleWidth, true )

end

end

local function calcHeights( gi, i, val )

function drawXlegends()

local barHeight = math.max( 2, math.floor( val / yscales[gi] * chartHeight + 0.5 ) ) -- add half to make it "round" instead of "trunc", min height to 2 to avoid negative bar sizes

local setOffset, setWidth

local top, base = chartHeight - barHeight, 0

local legendDivStyleFormat = "position:absolute;left:%spx;top:10px;min-width:%spx;max-width:%spx;text-align:center;veritical-align:top;"

if stack then

local tickDivstyleFormat = "position:absolute;left:%spx;height:10px;width:1px;border-left:1px solid black;"

for ij = 1, numValuesgi - 1 do

if not nulOrWhitespacetonumber( xlegendsvalues[j][i]) )> 0 then

base = base + math.max( 2, math.floor( values[j][i] / yscales[gi] * chartHeight + 0.5 ) ) -- sum the "i" value of all the groups below our group, gi, and keep the same calculation for each bar

setOffset, setWidth = groupBounds( i )

end

-- setWidth = 0.85 * setWidth

end

table.insert( res, mw.text.tag( 'div', { style = string.format( legendDivStyleFormat, setOffset - 5, setWidth - 10, setWidth - 10 ) }, xlegends[i] or '' ) )

end

table.insert( res, mw.text.tag( 'div', { style = string.format( tickDivstyleFormat, setOffset + setWidth / 2 ) }, '' ) )

return barHeight, top - base

end

end

end

local function groupBounds( i )

function printGroupList()

local setWidth = math.floor( chartWidth / numValues )

if #groupNames > 1 then

local setOffset = ( i - 1 ) * setWidth

local list = {}

return setOffset, setWidth

local spanStyle = "padding:0 1em;background-color:%s;box-shadow:4px -3px 3px 1px grey;margin:0 1em;"

end

for gi = 1, #groupNames do

local span = mw.text.tag( 'span', { style = string.format( spanStyle, colors[gi] ) }, '&nbsp;' ) .. ' '.. groupNames[gi]

table.insert( list, mw.text.tag( 'li', {}, span ) )

end

table.insert( res, mw.text.tag( 'ul', {style="width:100%;list-style:none;-webkit-column-width:10em;-moz-column-width:10em;column-width:10em;"}, table.concat( list, '\n' ) ) )

end

end

local function calcx( gi, i )

function drawChart()

local setOffset, setWidth = groupBounds( i )

table.insert( res, mw.text.tag( 'div', { style = string.format( 'max-width:%spx;', width ) } ) )

if stack or numGroups == 1 then

table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;min-height:%spx;min-width:%spx;max-width:%spx;", height, width, width ) } ) )

local barWidth = math.min( 38, math.floor( 0.8 * setWidth ) )

return setOffset + (setWidth - barWidth) / 2, barWidth

end

setWidth = 0.85 * setWidth

local barWidth = math.floor( 0.75 * setWidth / numGroups )

local left = setOffset + math.floor( ( gi - 1 ) / numGroups * setWidth )

return left, barWidth

end

local function drawbar( gi, i, val, ttval )

table.insert( res, mw.text.tag( 'div', { style = string.format("float:right;position:relative;min-height:%spx;min-width:%spx;max-width:%spx;border-left:1px black solid;border-bottom:1px black solid;", chartHeight, chartWidth, chartWidth ) } ) )

if val == '0' then return end -- do not show single line (borders....) if value is 0, or rather, '0'. see talkpage

local color, tooltip, custom = colors[gi] or defcolor or 'blue', tooltip( gi, i, ttval or val )

for gi, group in pairs( values ) do

local left, barWidth = calcx( gi, i )

for i, val in ipairs( group ) do

local barHeight, top = drawbarcalcHeights( gi, i, val )

end

end

-- borders so it shows up when printing

table.insert( res, '</div>' )

table.insert( res, mw.text.tag( 'div', { local style = string.format("position:absolute;left:%spx;top:%spx;height:%spx;min-width:%spx;max-width:%spx;",background-color:%s;-webkit-print-color-adjust:exact;border:1px chartHeight,solid scaleWidth%s;border-bottom:none;overflow:hidden;", scaleWidth, scaleWidth ) } ) )

left, top, barHeight-1, barWidth-2, barWidth-2, color, color)

drawYScale()

local link = links[gi] and links[gi][i] or ''

table.insert( res, '</div>' )

local img = not nulOrWhitespace( link ) and string.format( '[[File:Transparent.png|1000px|link=%s|%s]]', link, custom and tooltip or '' ) or ''

table.insert( res, mw.text.tag( 'div', { style = string.format( "position:absolute;top:%spx;left:%spx;width:%spx;", chartHeight, scaleWidth, chartWidth ) } ) )

table.insert( res, mw.text.tag( 'div', { style = style, title = tooltip, }, img ) )

drawXlegends()

end

table.insert( res, '</div>' )

table.insert( res, '</div>' )

printGroupList()

table.insert( res, '</div>' )

end

extractParams()

local function drawYScale()

validate()

local function drawSingle( gi, color, width, yticks, single )

calcHeightLimits()

local yscale = yscales[gi]

drawChart()

local _, top, ordermag = roundup( yscale * 0.999 )

return table.concat( res, "\n" )

local numnotches = yticks >= 0 and yticks or

(top <= 1.5 and top * 4

or top < 4 and top * 2

or top)

local valStyleStr =

single and 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;padding:0 2px'

or 'position:absolute;height=20px;text-align:right;vertical-align:middle;width:%spx;top:%spx;left:3px;background-color:%s;color:white;font-weight:bold;text-shadow:-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000,1px 1px 0 #000;padding:0 2px'

local notchStyleStr = 'position:absolute;height=1px;min-width:5px;top:%spx;left:%spx;border:1px solid %s;'

for i = 1, numnotches do

local val = i / numnotches * yscale

local y = chartHeight - calcHeights( gi, 1, val )

local div = mw.text.tag( 'div', { style = string.format( valStyleStr, width - 10, y - 10, color ) }, mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) )

table.insert( res, div )

div = mw.text.tag( 'div', { style = string.format( notchStyleStr, y, width - 4, color ) }, '' )

table.insert( res, div )

end

end

if scalePerGroup then

local colWidth = 80

local colStyle = "position:absolute;height:%spx;min-width:%spx;left:%spx;border-right:1px solid %s;color:%s"

for gi = 1, numGroups do

local left = ( gi - 1 ) * colWidth

local color = colors[gi] or defcolor

table.insert( res, mw.text.tag( 'div', { style = string.format( colStyle, chartHeight, colWidth, left, color, color ) } ) )

drawSingle( gi, color, colWidth, yticks )

table.insert( res, '</div>' )

end

else

drawSingle( 1, 'black', scaleWidth, yticks, true )

end

end

local function drawXlegends()

local setOffset, setWidth

local legendDivStyleFormat = "position:absolute;left:%spx;top:10px;min-width:%spx;max-width:%spx;text-align:center;vertical-align:top;"

local tickDivstyleFormat = "position:absolute;left:%spx;height:10px;width:1px;border-left:1px solid black;"

for i = 1, numValues do

if not nulOrWhitespace( xlegends[i] ) then

setOffset, setWidth = groupBounds( i )

-- setWidth = 0.85 * setWidth

table.insert( res, mw.text.tag( 'div', { style = string.format( legendDivStyleFormat, setOffset + 1, setWidth - 2, setWidth - 2 ) }, xlegends[i] or '' ) )

table.insert( res, mw.text.tag( 'div', { style = string.format( tickDivstyleFormat, setOffset + setWidth / 2 ) }, '' ) )

end

end

end

local function drawChart()

table.insert( res, mw.text.tag( 'div', { class = 'chart noresize', style = string.format( 'padding-top:10px;margin-top:1em;max-width:%spx;', width ) } ) )

table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;min-height:%spx;min-width:%spx;max-width:%spx;", height, width, width ) } ) )

table.insert( res, mw.text.tag( 'div', { style = string.format("float:right;position:relative;min-height:%spx;min-width:%spx;max-width:%spx;border-left:1px black solid;border-bottom:1px black solid;", chartHeight, chartWidth, chartWidth ) } ) )

local acum = stack and accumulateTooltip and {}

for gi, group in pairs( values ) do

for i, val in ipairs( group ) do

if acum then acum[i] = ( acum[i] or 0 ) + val end

drawbar( gi, i, val, acum and acum[i] )

end

end

table.insert( res, '</div>' )

table.insert( res, mw.text.tag( 'div', { style = string.format("position:absolute;height:%spx;min-width:%spx;max-width:%spx;", chartHeight, scaleWidth, scaleWidth, scaleWidth ) } ) )

drawYScale()

table.insert( res, '</div>' )

table.insert( res, mw.text.tag( 'div', { style = string.format( "position:absolute;top:%spx;left:%spx;width:%spx;", chartHeight, scaleWidth, chartWidth ) } ) )

drawXlegends()

table.insert( res, '</div>' )

table.insert( res, '</div>' )

createGroupList( res, groupNames, colors )

table.insert( res, '</div>' )

end

extractParams()

validate()

calcHeightLimits()

drawChart()

return table.concat( res, "\n" )

end

return {
['bar-chart'] = barChart },

[keywords.barChart] = barChart,

[keywords.pieChart] = pieChart,

}