--<source lang=lua>
--[[
keywords are used for languages: they are the names of the actual
parameters of the template
]]
local keywords = {
barChart = 'bar chart',
width = 'width',
height = 'height',
stack = 'stack',
colors = 'colors',
group = 'group',
xlegend = 'x legends',
tooltip = 'tooltip',
accumulateTooltip = 'tooltip value accumulation',
links = 'links',
defcolor = 'default color',
scalePerGroup = 'scale per group',
unitsPrefix = 'units prefix',
unitsSuffix = 'units suffix',
groupNames = 'group names',
hideGroupLegends = 'hide group legends',
optint = 'only integer values',
slices = 'slices',
slice = 'slice',
radius = 'radius',
percent = 'percent',
} -- here is what you want to translate
function barChart( frame )
local res = {}
local args = frame.args -- can be changed to frame:getParent().args
local values, xlegends, colors, tooltips, yscales, yscalesneg = {}, {}, {}, {} ,{}, {}, {}, {}
local groupNames, unitsSuffix, unitsPrefix, links = {}, {}, {}, {}
local width, height, stack, delimiter = 500, 350, false, args.delimiter or ':'
local chartWidth, chartHeight, defcolor, scalePerGroup, accumulateTooltip
local numGroups, numValues
local scaleWidth
local defColors = require "Module:Plotter/DefaultColors"
local hideGroupLegends
local optint
local function nulOrWhitespace( s )
return not s or mw.text.trim( s ) == ''
end
function createGroupList( tab, legends, cols )
if #legends > 1 and not hideGroupLegends then
table.insert( tab, mw.text.tag( 'div', { style = string.format( "width:%spx;", chartWidth ) } ) )
local list = {}
local spanStyle = "padding:0 1em;background-color:%s;border:1px solid %s;margin-right:1em;-webkit-print-color-adjust:exact;"
for gi = 1, #legends do
local span = mw.text.tag( 'span', { style = string.format( spanStyle, cols[gi], cols[gi] ) }, ' ' ) .. ' '.. legends[gi]
table.insert( list, mw.text.tag( 'li', {}, span ) )
end
table.insert( tab,
mw.text.tag( 'ul',
{style="width:100%;list-style:none;-webkit-column-width:12em;-moz-column-width:12em;column-width:12em;"},
table.concat( list, '\n' )
)
)
table.insert( tab, '</div>' )
end
end
function validate()
function asGroups( name, tab, toDuplicate, emptyOK )
if #tab == 0 and not emptyOK then
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] .. ' must contain the same number of items as the number of groups, but it contains ' .. #tab .. ' items and there are ' .. numGroups .. ' groups')
end
end
-- do all sorts of validation here, so we can assume all params are good from now on.
-- among other things, replace numerical values with mw.language:parseFormattedNumber() result
chartHeight = height - 80
numGroups = #values
numValues = #values[1]
defcolor = defcolor or 'blue'
colors[1] = colors[1] or defcolor
scaleWidth = scalePerGroup and 80 * numGroups or 30
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 exactly ' .. numValues ) end
end
function extractParams()
function testone( keyword, key, val, tab )
i = keyword == key and 0 or key:match( keyword .. "%s+(%d+)" )
if not i then return end
i = tonumber( i ) or error("Expect numerical index for key " .. keyword .. " instead of '" .. key .. "'")
if i > 0 then tab[i] = {} end
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.optint then optint = true
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
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
function calcHeightLimits() -- if limits were passed by user, use them, otherwise calculate. for "stack" there's only one limet.
if stack then
local sums = {}
for _, group in pairs( values ) do
for i, val in ipairs( group ) do sums[i] = ( sums[i] or 0 ) + val end
end
local sum = math.max( unpack( sums ) )
local sumneg = math.min( unpack( sums ) )
for i = 1, #values do
yscales[i] = sum
yscalesneg[i] = 0 -- -sumneg
end
else
for i, group in ipairs( values ) do
yscales[i] = math.max( unpack( group ) )
yscalesneg[i] = -math.min( unpack( group ) )
end
end
for i, scale in ipairs( yscales ) do yscales[i] = roundup( scale * 0.9999 ) end
for i, scale in ipairs( yscalesneg ) do yscalesneg[i] = roundup( scale * 0.9999 ) end
if not scalePerGroup then for i = 1, #values do
yscales[i] = math.max( unpack( yscales ) )
yscalesneg[i] = math.max ( 0 , math.max( unpack( yscalesneg ) ) )
end end
end
function tooltip( gi, i, val )
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 = 0
local top, base = 0, 0
if tonumber( val ) >= 0 then
barHeight = math.floor( val / ( yscales[gi] + yscalesneg[gi] ) * chartHeight + 0.5 ) -- add half to make it "round" instead of "trunc"
top, base = chartHeight - barHeight - yscalesneg[gi] / ( yscales[gi] + yscalesneg[gi] ) * chartHeight , 0
-- barHeight = math.floor( val / yscales[gi] * chartHeight + 0.5 ) -- add half to make it "round" instead of "trunc"
-- top, base = chartHeight - barHeight, 0
else
barHeight = math.floor( -val / ( yscales[gi] + yscalesneg[gi] ) * chartHeight + 0.5 ) -- add half to make it "round" instead of "trunc"
top, base = chartHeight - yscales[gi] / ( yscales[gi] + yscalesneg[gi] ) * chartHeight, 0
end
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
function calcHeightsOld( gi, i, val )
local barHeight = math.floor( val / yscales[gi] * chartHeight + 0.5 ) -- add half to make it "round" instead of "trunc"
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
function groupBounds( i )
local setWidth = math.floor( chartWidth / numValues )
-- local setOffset = ( i - 1 ) * setWidth
local setOffset = ( i - 1 ) * setWidth
return setOffset, setWidth
end
function calcx( gi, i )
local setOffset, setWidth = groupBounds( i )
if stack or numGroups == 1 then
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
function drawbar( gi, i, val, ttval )
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 )
local left, barWidth = calcx( gi, i )
local barHeight, top = calcHeights( gi, i, val )
-- borders so it shows up when printing
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 solid %s;border-bottom:none;overflow:hidden;",
left, top, barHeight-1, barWidth-2, barWidth-2, color, color)
local link = links[gi] and links[gi][i] or ''
local img = not nulOrWhitespace( link ) and mw.ustring.format( '[[File:Transparent.png|1000px|link=%s|%s]]', link, custom and tooltip or '' ) or ''
table.insert( res, mw.text.tag( 'div', { style = style, title = tooltip, class = "chart2-bar" }, img ) )
end
function drawYScale()
function drawSingle( gi, color, single )
local yscale = yscales[gi]
local _, top, ordermag = roundup( yscale * 0.999 )
local numnotches = top <= 1.5 and top * 4
or top < 4 and top * 2
or top
local valStyleStrCntnr = 'display:block;position:relative;height:%spx;text-align:right;margin:0px;' -- SINGLE ELEMENT OF Y AXIS
local valStyleStrValue = 'display:block;position:relative;float:right;height:%spx;text-align:right;margin:%spx 0px 0px 0px;vertical-align:middle;line-height:%spx;' -- value
local valStyleStrNotch = 'display:block;position:relative;float:right;height:%spx;text-align:right;width:5px; border-top:1px solid black' -- notch
-- or 'position:relative;height=20px;text-align:right;vertical-align:middle;max-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 = (numnotches - i + 1) / numnotches * yscale -- value of this notch
local y = ( 1 / numnotches * chartHeight ) --chartHeight - calcHeights( gi, 1, val ) -- height of a single notch
local divCntnr = mw.text.tag( 'div', { style = string.format( valStyleStrCntnr, y, color ) } )
local divValue = mw.text.tag( 'div', { style = string.format( valStyleStrValue, y, -y/2, y, color ) }, mw.getContentLanguage():formatNum( tonumber( val ) or 0 ) )
local divNotch = mw.text.tag( 'div', { style = string.format( valStyleStrNotch, y, color ) }, ' ' )
table.insert( res, divCntnr )
if val~=math.floor(val) and optint then
else
table.insert( res, divNotch )
table.insert( res, divValue )
end
table.insert( res, '</div>' )
table.insert( res, '<div style="clear:right;display:block"></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"
-- local colStyle = "height:%spx;border-right:1px solid %s;color:%s;display:inline-block;text-align:right"
-- 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 ) } ) )
-- table.insert( res, mw.text.tag( 'div', { style = string.format( colStyle, chartHeight, color, color ) } ) )
-- drawSingle( gi, color )
-- table.insert( res, '</div>' )
-- end
else
drawSingle( 1, 'black', true ) -- gi is the id of y axis when more than 1
end
end
function drawXlegends()
local setOffset, setWidth
local legendDivStyleFormat = "display:block;float:left;position:relative;vertical-align:top;width:%spx;text-align:center;margin:0px 0px 0px %spx;"
-- local tickDivstyleFormat = "position:absolute;left:%spx;height:10px;width:1px;border-left:1px solid black;"
local offsetleft = 0;
setOffset, setWidth = groupBounds( 1 )
for i = 1, numValues do
if not nulOrWhitespace( xlegends[i] ) then
table.insert( res, mw.text.tag( 'div', { style = string.format( legendDivStyleFormat, setWidth, offsetleft ) }, xlegends[i] or '' ) )
offsetleft=0;
else
offsetleft=offsetleft+setWidth;
end
-- setOffset, setWidth = groupBounds( i )
-- table.insert( res, mw.text.tag( 'div', { style = string.format( legendDivStyleFormat, setWidth ) }, xlegends[i] or '' ) )
end
end
function drawChart()
table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;padding:1em 0em 1em 0em;") } ) ) -- container div
table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;" ) } ) ) -- container div
table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;height:%spx;display:inline-block;text-align:right;vertical-align:top;", chartHeight ) } ) )
drawYScale()
table.insert( res, '</div><div style="position:relative;display:inline-block">' )
-- table.insert( res, mw.text.tag( 'div', { style = string.format("position:relative;display:inline-block" ) } ) ) -- right side container div (should not have space)
table.insert( res, mw.text.tag( 'div', { style = string.format("height:%spx;width:%spx;border-left:1px black solid;border-bottom:1px black solid;display:block;margin:0px;padding:0px;", chartHeight, chartWidth ) } ) ) -- the actual chart
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:relative;width:%spx;", chartWidth ) } ) ) -- X legends
drawXlegends()
table.insert( res, '</div>' )
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,
}
--</source>
