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8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 8x 24x 24x 24x 8x 24x 24x 8x 8x 8x 8x 34x 34x | import * as React from "react"
import {
findLastIndex,
min,
max,
maxBy,
last,
flatten,
excludeUndefined,
sortBy,
sumBy,
partition,
first,
} from "../../clientUtils/Util"
import { action, computed, observable } from "mobx"
import { observer } from "mobx-react"
import { Bounds, DEFAULT_BOUNDS } from "../../clientUtils/Bounds"
import {
BASE_FONT_SIZE,
EntitySelectionMode,
SeriesName,
} from "../core/GrapherConstants"
import { DualAxisComponent } from "../axis/AxisViews"
import { NoDataModal } from "../noDataModal/NoDataModal"
import { AxisConfig } from "../axis/AxisConfig"
import { ChartInterface } from "../chart/ChartInterface"
import { OwidTable } from "../../coreTable/OwidTable"
import { autoDetectYColumnSlugs, makeSelectionArray } from "../chart/ChartUtils"
import {
HorizontalAlign,
Position,
SortBy,
SortConfig,
SortOrder,
} from "../../clientUtils/owidTypes"
import { StackedPoint, StackedSeries } from "./StackedConstants"
import { ColorSchemes } from "../color/ColorSchemes"
import {
EntityName,
OwidVariableRow,
OwidTableSlugs,
} from "../../coreTable/OwidTableConstants"
import {
HorizontalCategoricalColorLegend,
HorizontalColorLegendManager,
} from "../horizontalColorLegend/HorizontalColorLegends"
import { CategoricalBin, ColorScaleBin } from "../color/ColorScaleBin"
import { CoreColumn } from "../../coreTable/CoreTableColumns"
import { TippyIfInteractive } from "../chart/Tippy"
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome"
import { faInfoCircle } from "@fortawesome/free-solid-svg-icons/faInfoCircle"
import { DualAxis, HorizontalAxis, VerticalAxis } from "../axis/Axis"
import { ColorScale, ColorScaleManager } from "../color/ColorScale"
import {
ColorScaleConfig,
ColorScaleConfigDefaults,
} from "../color/ColorScaleConfig"
import { ColorSchemeName } from "../color/ColorConstants"
import { color } from "d3-color"
import { SelectionArray } from "../selection/SelectionArray"
import { ColorScheme } from "../color/ColorScheme"
import {
MarimekkoChartManager,
EntityColorData,
SimplePoint,
SimpleChartSeries,
BarShape,
Bar,
Item,
PlacedItem,
TooltipProps,
EntityWithSize,
LabelCandidate,
LabelWithPlacement,
LabelCandidateWithElement,
MarimekkoBarProps,
} from "./MarimekkoChartConstants"
const MARKER_MARGIN: number = 4
const MARKER_AREA_HEIGHT: number = 25
function MarimekkoBar({
bar,
tooltipProps,
barWidth,
isHovered,
isSelected,
isFaint,
entityColor,
y0,
isInteractive,
dualAxis,
}: MarimekkoBarProps): JSX.Element {
const { seriesName } = bar
const isPlaceholder = bar.kind === BarShape.BarPlaceholder
const barBaseColor =
entityColor ?? (bar.kind === BarShape.Bar ? bar.color : "#555")
const barColor =
bar.kind === BarShape.BarPlaceholder
? "#555"
: isHovered
? color(barBaseColor)?.brighter(0.9).toString() ?? barBaseColor
: isSelected
? color(barBaseColor)?.brighter(0.6).toString() ?? barBaseColor
: barBaseColor
const strokeColor = barColor
const strokeWidth = isHovered || isSelected ? "1px" : "0.5px"
const strokeOpacity = isPlaceholder ? 0.8 : isFaint ? 0.2 : 1.0
const fillOpacity = isHovered
? 0.7
: isFaint
? 0.2
: isSelected
? isPlaceholder
? 0.3
: 0.7
: 0.7
const overalOpacity = isPlaceholder ? 0.2 : 1.0
let barY: number = 0
let barHeight: number = 0
if (bar.kind === BarShape.Bar) {
barY = dualAxis.verticalAxis.place(y0 + bar.yPoint.valueOffset)
barHeight =
dualAxis.verticalAxis.place(y0) -
dualAxis.verticalAxis.place(bar.yPoint.value)
} else {
barY = dualAxis.verticalAxis.place(y0)
barHeight = bar.height
}
const barX = 0
const renderedBar = (
<g key={seriesName}>
<rect
x={0}
y={0}
transform={`translate(${barX}, ${barY - barHeight})`}
width={barWidth}
height={barHeight}
fill={barColor}
fillOpacity={fillOpacity}
stroke={strokeColor}
strokeWidth={strokeWidth}
strokeOpacity={strokeOpacity}
opacity={overalOpacity}
style={{
transition: "translate 200ms ease",
}}
/>
</g>
)
if (tooltipProps) {
return (
<TippyIfInteractive
lazy
isInteractive={isInteractive}
key={seriesName}
animation={false}
visible={isHovered}
content={<MarimekkoChart.Tooltip {...tooltipProps} />}
>
{renderedBar}
</TippyIfInteractive>
)
} else return renderedBar
}
interface MarimekkoBarsProps {
entityName: string
bars: Bar[]
entityColor: EntityColorData | undefined
isFaint: boolean
isHovered: boolean
isSelected: boolean
barWidth: number
tooltipProps: TooltipProps
currentX: number
onEntityMouseOver: (entityName: string) => void
onEntityMouseLeave: () => void
onEntityClick: (entityName: string) => void
labelYOffset: number
y0: number
noDataHeight: number
dualAxis: DualAxis
isExportingToSvgOrPng: boolean | undefined
}
function MarimekkoBarsForOneEntity(props: MarimekkoBarsProps): JSX.Element {
7
const {
entityName,
bars,
entityColor,
isFaint,
isHovered,
isSelected,
barWidth,
tooltipProps,
currentX,
onEntityClick,
onEntityMouseLeave,
onEntityMouseOver,
labelYOffset,
y0,
noDataHeight,
dualAxis,
isExportingToSvgOrPng,
} = props
let content = undefined
if (bars.length) {
let lastNonZeroBarIndex = findLastIndex(
bars,
(bar) => bar.yPoint.value > 0
)
lastNonZeroBarIndex = lastNonZeroBarIndex >= 0 ? lastNonZeroBarIndex : 0 // if we don't find an item with a nonzero value it doesn't really matter which one we pick
const predecessors = bars.slice(0, lastNonZeroBarIndex)
const lastNonZero = bars[lastNonZeroBarIndex]
const successors = bars.slice(lastNonZeroBarIndex + 1, bars.length)
// This is annoying - I tried to use the tippy element around all bars instead of inside
// one single bar but then it renders at the document origin instead of at the right attach point
// since we will switch to another tooltip solution anyhow I would leave it at this for now -
// later on this splitting into allbutlast and last can be removed and tooltips just done elsewhere
const predecessorBars = predecessors.map((bar) => (
<MarimekkoBar
key={`${entityName}-${bar.seriesName}`}
bar={bar}
tooltipProps={undefined}
barWidth={barWidth}
isHovered={isHovered}
isSelected={isSelected}
isFaint={isFaint}
entityColor={entityColor?.color}
y0={y0}
isInteractive={!isExportingToSvgOrPng}
dualAxis={dualAxis}
/>
))
const lastNonZeroBar = (
<MarimekkoBar
key={`${entityName}-${lastNonZero.seriesName}`}
bar={lastNonZero}
tooltipProps={{
...tooltipProps,
highlightedSeriesName: lastNonZero.seriesName,
}}
barWidth={barWidth}
isHovered={isHovered}
isSelected={isSelected}
isFaint={isFaint}
entityColor={entityColor?.color}
y0={y0}
isInteractive={!isExportingToSvgOrPng}
dualAxis={dualAxis}
/>
)
const successorBars = successors.map((bar) => (
<MarimekkoBar
key={`${entityName}-${bar.seriesName}`}
bar={bar}
tooltipProps={undefined}
barWidth={barWidth}
isHovered={isHovered}
isSelected={isSelected}
isFaint={isFaint}
entityColor={entityColor?.color}
y0={y0}
isInteractive={!isExportingToSvgOrPng}
dualAxis={dualAxis}
/>
))
content = [...predecessorBars, lastNonZeroBar, ...successorBars]
} else {
content = (
<MarimekkoBar
key={`${entityName}-placeholder`}
tooltipProps={tooltipProps}
bar={{
kind: BarShape.BarPlaceholder,
seriesName: entityName,
height: noDataHeight,
}}
barWidth={barWidth}
isHovered={isHovered}
isSelected={isSelected}
isFaint={isFaint}
entityColor={entityColor?.color}
y0={y0}
isInteractive={!isExportingToSvgOrPng}
dualAxis={dualAxis}
/>
)
}
return (
<g
key={entityName}
className="bar"
transform={`translate(${currentX}, ${labelYOffset})`}
onMouseOver={(): void => onEntityMouseOver(entityName)}
onMouseLeave={(): void => onEntityMouseLeave()}
onClick={(): void => onEntityClick(entityName)}
>
{content}
</g>
)
}
@observer
export class MarimekkoChart
extends React.Component<{
bounds?: Bounds
manager: MarimekkoChartManager
}>
implements ChartInterface, HorizontalColorLegendManager, ColorScaleManager
{
base: React.RefObject<SVGGElement> = React.createRef()
defaultBaseColorScheme = ColorSchemeName.continents
defaultNoDataColor = "#959595"
labelAngleInDegrees = -45 // 0 is horizontal, -90 is vertical from bottom to top, ...
transformTable(table: OwidTable): OwidTable {
if (!this.yColumnSlugs.length) return table
if (!this.xColumnSlug) return table
const { excludedEntities, includedEntities } = this.manager
const { yColumnSlugs, manager, colorColumnSlug, xColumnSlug } = this
if (excludedEntities || includedEntities) {
const excludedEntityIdsSet = new Set(excludedEntities)
const includedEntityIdsSet = new Set(includedEntities)
const excludeEntitiesFilter = (entityId: any): boolean =>
!excludedEntityIdsSet.has(entityId as number)
const includedEntitiesFilter = (entityId: any): boolean =>
includedEntityIdsSet.size > 0
? includedEntityIdsSet.has(entityId as number)
: true
const filterFn = (entityId: any): boolean =>
excludeEntitiesFilter(entityId) &&
includedEntitiesFilter(entityId)
const excludedList = excludedEntities
? excludedEntities.join(", ")
: ""
const includedList = includedEntities
? includedEntities.join(", ")
: ""
table = table.columnFilter(
OwidTableSlugs.entityId,
filterFn,
`Excluded entity ids specified by author: ${excludedList} - Included entity ids specified by author: ${includedList}`
)
}
// TODO: remove this filter once we don't have mixed type columns in datasets
table = table.replaceNonNumericCellsWithErrorValues(yColumnSlugs)
yColumnSlugs.forEach((slug) => {
table = table.interpolateColumnWithTolerance(slug)
})
table = table.interpolateColumnWithTolerance(xColumnSlug)
if (colorColumnSlug) {
const tolerance =
table.get(colorColumnSlug)?.display?.tolerance ?? Infinity
table = table.interpolateColumnWithTolerance(
colorColumnSlug,
tolerance
)
if (manager.matchingEntitiesOnly) {
table = table.dropRowsWithErrorValuesForColumn(colorColumnSlug)
}
}
if (!manager.showNoDataArea)
table = table.dropRowsWithErrorValuesForAllColumns(yColumnSlugs)
table = table.dropRowsWithErrorValuesForColumn(xColumnSlug)
if (manager.isRelativeMode) {
// TODO: this should not be necessary but we sometimes get NoMatchingValuesAfterJoin if both relative and showNoDataArea are set
table = table.dropRowsWithErrorValuesForColumn(
table.timeColumn.slug
)
table = table.toPercentageFromEachEntityForEachTime(xColumnSlug)
}
return table
}
@observable private hoveredEntityName?: string
@observable focusColorBin?: ColorScaleBin
@computed get inputTable(): OwidTable {
return this.manager.table
}
@computed get transformedTable(): OwidTable {
return (
this.manager.transformedTable ??
this.transformTable(this.inputTable)
)
}
@computed private get unstackedSeries(): StackedSeries<EntityName>[] {
const { colorScheme, yColumns } = this
return (
yColumns
.map((col, i) => {
return {
seriesName: col.displayName,
columnSlug: col.slug,
color:
col.def.color ??
colorScheme.getColors(yColumns.length)[i],
points: col.owidRows.map((row) => ({
time: row.time,
position: row.entityName,
value: row.value,
valueOffset: 0,
})),
}
})
// Do not plot columns without data
.filter((series) => series.points.length > 0)
)
}
//@computed private get rows(): readonly
@computed get series(): readonly StackedSeries<EntityName>[] {
const valueOffsets = new Map<string, number>()
return this.unstackedSeries.map((series) => ({
...series,
points: series.points.map((point) => {
const offset = valueOffsets.get(point.position) ?? 0
const newPoint = { ...point, valueOffset: offset }
valueOffsets.set(point.position, offset + point.value)
return newPoint
}),
}))
}
@computed get xSeries(): SimpleChartSeries {
const createStackedXPoints = (
rows: OwidVariableRow<any>[]
): SimplePoint[] => {
const points: SimplePoint[] = []
for (const row of rows) {
points.push({
time: row.time,
value: row.value,
entity: row.entityName,
})
}
return points
}
const column = this.xColumn
return {
seriesName: column.displayName,
points: createStackedXPoints(column.owidRows),
}
}
@computed protected get yColumnSlugs(): string[] {
return (
this.manager.yColumnSlugsInSelectionOrder ??
autoDetectYColumnSlugs(this.manager)
)
}
@computed protected get xColumnSlug(): string | undefined {
return this.manager.xColumnSlug
}
@computed protected get xColumn(): CoreColumn {
const columnSlugs = this.xColumnSlug ? [this.xColumnSlug] : []
if (!columnSlugs.length) console.warn("No x column slug!")
return this.transformedTable.getColumns(columnSlugs)[0]
}
@computed private get latestTime(): number | undefined {
const times =
this.manager.tableAfterAuthorTimelineAndActiveChartTransformAndPopulationFilter?.getTimesUniqSortedAscForColumns(
this.yColumnSlugs
)
return times ? last(times) : undefined
}
@computed private get tableAtLatestTimelineTimepoint():
| OwidTable
| undefined {
if (this.latestTime)
return this.manager.tableAfterAuthorTimelineAndActiveChartTransformAndPopulationFilter?.filterByTargetTimes(
[this.latestTime],
0
)
else return undefined
}
@computed protected get xColumnAtLastTimePoint(): CoreColumn | undefined {
const columnSlug = this.xColumnSlug ? [this.xColumnSlug] : []
if (this.tableAtLatestTimelineTimepoint)
return this.tableAtLatestTimelineTimepoint.getColumns(columnSlug)[0]
else return undefined
}
@computed protected get yColumnsAtLastTimePoint(): CoreColumn[] {
const columnSlugs = this.yColumnSlugs
return (
this.tableAtLatestTimelineTimepoint?.getColumns(columnSlugs) ?? []
)
}
@computed protected get yColumns(): CoreColumn[] {
return this.transformedTable.getColumns(this.yColumnSlugs)
}
@computed private get colorScheme(): ColorScheme {
return (
(this.manager.baseColorScheme
? ColorSchemes[this.manager.baseColorScheme]
: undefined) ?? ColorSchemes["owid-distinct"]
)
}
@computed private get colorColumnSlug(): string | undefined {
return this.manager.colorColumnSlug
}
@computed private get colorColumn(): CoreColumn {
return this.transformedTable.get(this.colorColumnSlug)
}
colorScale = new ColorScale(this)
@computed get colorScaleConfig(): ColorScaleConfigDefaults | undefined {
return (
ColorScaleConfig.fromDSL(this.colorColumn.def) ??
this.manager.colorScale
)
}
@computed get colorScaleColumn(): CoreColumn {
// We need to use inputTable in order to get consistent coloring for a variable across
// charts, e.g. each continent being assigned to the same color.
// inputTable is unfiltered, so it contains every value that exists in the variable.
return this.inputTable.get(this.colorColumnSlug)
}
@computed private get sortConfig(): SortConfig {
return this.manager.sortConfig ?? {}
}
@computed private get manager(): MarimekkoChartManager {
return this.props.manager
}
@computed private get bounds(): Bounds {
return (this.props.bounds ?? DEFAULT_BOUNDS).padRight(10)
}
@computed private get innerBounds(): Bounds {
// This is a workaround to get the actual width of the vertical axis - dualAxis does this
// internally but we can't access this.dualAxis here due to a dependency cycle
const axis = this.verticalAxisPart.clone()
axis.range = [0, this.bounds.height]
const verticalAxisTrueWidth = axis.width
const whiteSpaceOnLeft = this.bounds.left + verticalAxisTrueWidth
const labelLinesHeight = MARKER_AREA_HEIGHT
// only pad left by the amount the longest label would exceed whatever space the
// vertical axis needs anyhow for label and tickmarks
const marginToEnsureWidestEntityLabelFitsEvenIfAtX0 =
Math.max(whiteSpaceOnLeft, this.longestLabelWidth) -
whiteSpaceOnLeft
return this.bounds
.padBottom(this.longestLabelHeight)
.padBottom(labelLinesHeight)
.padTop(this.legend.height + this.legendPaddingTop)
.padLeft(marginToEnsureWidestEntityLabelFitsEvenIfAtX0)
}
@computed private get baseFontSize(): number {
return this.manager.baseFontSize ?? BASE_FONT_SIZE
}
@computed private get x0(): number {
return 0
}
@computed private get y0(): number {
return 0
}
@computed private get allPoints(): StackedPoint<EntityName>[] {
return flatten(this.series.map((series) => series.points))
}
@computed private get yDomainDefault(): [number, number] {
const maxValues = this.allPoints.map(
(point) => point.value + point.valueOffset
)
return [
Math.min(this.y0, min(maxValues) as number),
Math.max(this.y0, max(maxValues) as number),
]
}
@computed private get xDomainDefault(): [number, number] {
const sum = sumBy(this.xSeries.points, (point) => point.value)
return [this.x0, sum]
}
@computed private get xRange(): [number, number] {
return [this.bounds.left, this.bounds.right]
}
@computed private get yAxisConfig(): AxisConfig {
return new AxisConfig(this.manager.yAxisConfig, this)
}
@computed private get xAxisConfig(): AxisConfig {
return new AxisConfig(
{ ...this.manager.xAxisConfig, orient: Position.top },
this
)
}
@computed private get verticalAxisPart(): VerticalAxis {
const config = this.yAxisConfig
const axis = config.toVerticalAxis()
axis.updateDomainPreservingUserSettings(this.yDomainDefault)
axis.formatColumn = this.yColumns[0]
const fallbackLabel =
this.yColumns.length > 0 ? this.yColumns[0].displayName : ""
axis.label = this.isNarrow ? "" : config.label || fallbackLabel
return axis
}
@computed private get isNarrow(): boolean {
// TODO: this should probably come from grapher?
return this.bounds.width < 650 // innerBounds would lead to dependency cycle
}
@computed private get xAxisLabelBase(): string {
const xDimName = this.xColumn?.displayName
if (this.manager.xOverrideTime !== undefined)
return `${xDimName} in ${this.manager.xOverrideTime}`
return xDimName
}
@computed private get horizontalAxisPart(): HorizontalAxis {
const { manager, xAxisLabelBase, xDomainDefault, xColumn } = this
const config = this.xAxisConfig
let axis = config.toHorizontalAxis()
if (manager.isRelativeMode) {
// MobX and classes interact in an annoying way here so we have to construct a new object via
// an object copy of the AxisConfig class instance to be able to set a property without
// making MobX unhappy about a mutation originating from a computed property
axis = new HorizontalAxis(
new AxisConfig(
{ ...config.toObject(), maxTicks: 10 },
config.fontSizeManager
)
)
axis.domain = [0, 100]
} else axis.updateDomainPreservingUserSettings(xDomainDefault)
axis.formatColumn = xColumn
const label = config.label || xAxisLabelBase
axis.label = label
return axis
}
@computed private get dualAxis(): DualAxis {
return new DualAxis({
bounds: this.innerBounds,
verticalAxis: this.verticalAxisPart,
horizontalAxis: this.horizontalAxisPart,
})
}
@computed private get selectionArray(): SelectionArray {
return makeSelectionArray(this.manager)
}
@computed private get selectedItems(): Item[] {
const selectedSet = this.selectionArray.selectedSet
const { sortedItems } = this
if (selectedSet.size === 0) return []
return sortedItems.filter((item) => selectedSet.has(item.entityName))
}
@computed private get domainColorForEntityMap(): Map<
string,
EntityColorData
> {
const { colorColumn, colorScale } = this
const entityNames = this.xColumn.uniqEntityNames
const hasColorColumn = !colorColumn.isMissing
const colorRowsByEntity = hasColorColumn
? colorColumn.owidRowsByEntityName
: undefined
const domainColorMap = new Map<string, EntityColorData>()
for (const name of entityNames) {
const colorDomainValue = colorRowsByEntity?.get(name)?.[0]
if (colorDomainValue) {
const color = colorScale.getColor(colorDomainValue.value)
if (color)
domainColorMap.set(name, {
color,
colorDomainValue: colorDomainValue.value,
})
}
}
return domainColorMap
}
@computed private get items(): Item[] {
const entityNames = this.xColumn.uniqEntityNames
const { xSeries, series, domainColorForEntityMap } = this
const items: Item[] = entityNames
.map((entityName) => {
const xPoint = xSeries.points.find(
(point) => point.entity === entityName
)
if (!xPoint) return undefined
const color = domainColorForEntityMap.get(entityName)
return {
entityName,
xPoint: xPoint,
entityColor: color,
bars: excludeUndefined(
series.map((series): Bar | undefined => {
const point = series.points.find(
(point) => point.position === entityName
)
if (!point) return undefined
return {
kind: BarShape.Bar,
yPoint: point,
color: series.color,
seriesName: series.seriesName,
}
})
),
}
})
.filter((item) => item) as Item[]
return items
}
@computed private get sortedItems(): Item[] {
const { items, sortConfig } = this
let sortByFunc: (item: Item) => number | string
switch (sortConfig.sortBy) {
case SortBy.entityName:
sortByFunc = (item: Item): string => item.entityName
break
case SortBy.column:
const sortColumnSlug = sortConfig.sortColumnSlug
sortByFunc = (item: Item): number =>
item.bars.find((b) => b.seriesName === sortColumnSlug)
?.yPoint.value ?? 0
break
default:
case SortBy.total:
sortByFunc = (item: Item): number => {
const lastPoint = last(item.bars)?.yPoint
if (!lastPoint) return 0
return lastPoint.valueOffset + lastPoint.value
}
}
const sortedItems = sortBy(items, sortByFunc)
const sortOrder = sortConfig.sortOrder ?? SortOrder.desc
if (sortOrder === SortOrder.desc) sortedItems.reverse()
const [itemsWithValues, itemsWithoutValues] = partition(
sortedItems,
(item) => item.bars.length !== 0
)
return [...itemsWithValues, ...itemsWithoutValues]
}
@computed get placedItems(): PlacedItem[] {
const { sortedItems, dualAxis, x0 } = this
const placedItems: PlacedItem[] = []
let currentX = 0
for (const item of sortedItems) {
placedItems.push({ ...item, xPosition: currentX })
const preciseX =
dualAxis.horizontalAxis.place(item.xPoint.value) -
dualAxis.horizontalAxis.place(x0)
currentX += preciseX
}
return placedItems
}
@computed get placedItemsMap(): Map<string, PlacedItem> {
return new Map(this.placedItems.map((item) => [item.entityName, item]))
}
// legend props
@computed get legendPaddingTop(): number {
return this.baseFontSize
}
@computed get legendX(): number {
return this.bounds.x
}
@computed get categoryLegendY(): number {
return this.bounds.top
}
@computed get legendOpacity(): number {
return 0.7
}
@computed get legendWidth(): number {
return this.bounds.width
}
@computed get legendAlign(): HorizontalAlign {
return HorizontalAlign.left
}
@computed get fontSize(): number {
return this.baseFontSize
}
@computed get categoricalLegendData(): CategoricalBin[] {
const { colorColumnSlug, colorScale, series } = this
if (colorColumnSlug) return colorScale.categoricalLegendBins
else
return series.map((series, index) => {
return new CategoricalBin({
index,
value: series.seriesName,
label: series.seriesName,
color: series.color,
})
})
}
@action.bound onLegendMouseOver(bin: ColorScaleBin): void {
this.focusColorBin = bin
}
@action.bound onLegendMouseLeave(): void {
this.focusColorBin = undefined
}
@computed private get legend(): HorizontalCategoricalColorLegend {
return new HorizontalCategoricalColorLegend({ manager: this })
}
@computed private get formatColumn(): CoreColumn {
return this.yColumns[0]
}
@action.bound private onEntityMouseOver(entityName: string): void {
this.hoveredEntityName = entityName
}
@action.bound private onEntityMouseLeave(): void {
this.hoveredEntityName = undefined
}
@action.bound private onEntityClick(entityName: string): void {
this.onSelectEntity(entityName)
}
@action.bound private onSelectEntity(entityName: string): void {
if (this.canAddCountry) this.selectionArray.toggleSelection(entityName)
}
@computed private get canAddCountry(): boolean {
const { addCountryMode } = this.manager
return (addCountryMode &&
addCountryMode !== EntitySelectionMode.Disabled) as boolean
}
render(): JSX.Element {
if (this.failMessage)
return (
<NoDataModal
manager={this.manager}
bounds={this.bounds}
message={this.failMessage}
/>
)
const { bounds, dualAxis } = this
return (
<g ref={this.base} className="MarimekkoChart">
<rect
x={bounds.left}
y={bounds.top}
width={bounds.width}
height={bounds.height}
opacity={0}
fill="rgba(255,255,255,0)"
/>
<DualAxisComponent dualAxis={dualAxis} showTickMarks={true} />
<HorizontalCategoricalColorLegend manager={this} />
{this.renderBars()}
</g>
)
}
private renderBars(): JSX.Element[] {
const normalElements: JSX.Element[] = []
const highlightedElements: JSX.Element[] = [] // highlighted elements have a thicker stroke and should be drawn last to overlap others
const {
dualAxis,
x0,
y0,
focusColorBin,
placedLabels,
labelLines,
placedItems,
hoveredEntityName,
} = this
const selectionSet = this.selectionArray.selectedSet
const targetTime = this.manager.endTime
const timeColumn = this.inputTable.timeColumn
const yAxisColumn = this.formatColumn
const xAxisColumn = this.xColumn
const labelYOffset = 0
const hasSelection = selectionSet.size > 0
let noDataAreaElement = undefined
let noDataLabel = undefined
let patterns: JSX.Element[] = []
const noDataHeight = Bounds.forText("no data").height + 10 // dualAxis.verticalAxis.rangeSize
const firstNanValue = placedItems.findIndex((item) => !item.bars.length)
const anyNonNanAfterFirstNan =
firstNanValue >= 0
? placedItems
.slice(firstNanValue)
.some((item) => item.bars.length !== 0)
: false
if (anyNonNanAfterFirstNan)
console.error("Found Non-NAN values after NAN value!")
if (firstNanValue !== -1) {
const firstNanValueItem = placedItems[firstNanValue]
const lastItem = last(placedItems)!
const noDataRangeStartX =
firstNanValueItem.xPosition + dualAxis.horizontalAxis.place(x0)
const noDataRangeEndX =
lastItem?.xPosition +
dualAxis.horizontalAxis.place(lastItem.xPoint.value)
const yStart = dualAxis.verticalAxis.place(y0)
const noDataLabelX =
noDataRangeStartX + (noDataRangeEndX - noDataRangeStartX) / 2
const boundsForNoData = Bounds.forText("no data")
const noDataLabelY = yStart - boundsForNoData.width
noDataLabel = (
<text
key={`noDataArea-label`}
x={0}
transform={`rotate(-90, ${noDataLabelX}, ${noDataLabelY})
translate(${noDataLabelX}, ${noDataLabelY})`}
y={0}
width={noDataRangeEndX - noDataRangeStartX}
height={noDataHeight}
fontWeight={700}
fill="#666"
opacity={1}
fontSize="0.8em"
textAnchor="middle"
dominantBaseline="middle"
style={{ pointerEvents: "none" }}
>
no data
</text>
)
noDataAreaElement = (
<rect
key="noDataArea"
x={noDataRangeStartX}
y={yStart - noDataHeight}
//transform={`translate(${barX}, ${barY - barHeight})`}
width={noDataRangeEndX - noDataRangeStartX}
height={noDataHeight}
fill={"url(#diagonalHatch)"}
// stroke={strokeColor}
// strokeWidth={strokeWidth}
opacity={0.5}
></rect>
)
patterns = [
<pattern
id="diagonalHatch"
key="diagonalHatch"
patternUnits="userSpaceOnUse"
width="4"
height="4"
patternTransform="rotate(-45 2 2)"
>
<path d="M -1,2 l 6,0" stroke="#ccc" strokeWidth="1" />
</pattern>,
]
}
for (const item of placedItems) {
const { entityName, bars, xPoint, entityColor } = item
const currentX = dualAxis.horizontalAxis.place(x0) + item.xPosition
const tooltipProps = {
item,
targetTime,
timeColumn,
yAxisColumn,
xAxisColumn,
}
const barWidth =
dualAxis.horizontalAxis.place(xPoint.value) -
dualAxis.horizontalAxis.place(x0)
const isSelected = selectionSet.has(entityName)
const isHovered = entityName === hoveredEntityName
const isFaint =
(focusColorBin !== undefined &&
!focusColorBin.contains(entityColor?.colorDomainValue)) ||
(hasSelection && !isSelected)
const barsProps = {
entityName,
bars,
xPoint,
entityColor,
isFaint,
isHovered,
isSelected,
barWidth,
tooltipProps,
currentX,
onEntityClick: this.onEntityClick,
onEntityMouseLeave: this.onEntityMouseLeave,
onEntityMouseOver: this.onEntityMouseOver,
labelYOffset,
y0,
noDataHeight,
dualAxis,
isExportingToSvgOrPng: this.manager.isExportingtoSvgOrPng,
}
const result = (
<MarimekkoBarsForOneEntity key={entityName} {...barsProps} />
)
if (isSelected || isHovered) highlightedElements.push(result)
else normalElements.push(result)
}
return ([] as JSX.Element[]).concat(
patterns,
noDataAreaElement ? [noDataAreaElement] : [],
normalElements,
placedLabels,
labelLines,
highlightedElements,
noDataLabel ? [noDataLabel] : []
)
}
private paddingInPixels = 5
private static labelCandidateFromItem(
item: EntityWithSize,
baseFontSize: number,
isSelected: boolean
): LabelCandidate {
return {
item: item,
bounds: Bounds.forText(item.entityName, {
fontSize: 0.7 * baseFontSize,
}),
isPicked: isSelected,
isSelected,
}
}
/** This function splits label candidates into N groups so that each group has approximately
the same sum of x value metric. This is useful for picking labels because we want to have e.g.
20 labels relatively evenly spaced (in x domain space) and this function gives us 20 groups that
are roughly of equal size and then we can pick the largest of each group */
private static splitIntoEqualDomainSizeChunks(
candidates: LabelCandidate[],
numChunks: number
): LabelCandidate[][] {
const chunks: LabelCandidate[][] = []
let currentChunk: LabelCandidate[] = []
let domainSizeOfChunk = 0
const domainSizeThreshold = Math.ceil(
sumBy(candidates, (candidate) => candidate.item.xValue) / numChunks
)
for (const candidate of candidates) {
while (domainSizeOfChunk > domainSizeThreshold) {
chunks.push(currentChunk)
currentChunk = []
domainSizeOfChunk -= domainSizeThreshold
}
domainSizeOfChunk += candidate.item.xValue
currentChunk.push(candidate)
}
chunks.push(currentChunk)
return chunks.filter((chunk) => chunk.length > 0)
}
@computed private get pickedLabelCandidates(): LabelCandidate[] {
const {
xColumnAtLastTimePoint,
yColumnsAtLastTimePoint,
selectedItems,
xRange,
baseFontSize,
paddingInPixels,
} = this
if (!xColumnAtLastTimePoint || yColumnsAtLastTimePoint.length === 0)
return []
// Measure the labels (before any rotation, just normal horizontal labels)
const selectedItemsSet = new Set(
selectedItems.map((item) => item.entityName)
)
// This is similar to what we would get with .sortedItems but
// we want this for the last year to pick all labels there - sortedItems
// changes with the time point the user selects
const ySizeMap: Map<string, number> = new Map(
yColumnsAtLastTimePoint[0].owidRows.map((row) => [
row.entityName,
row.value,
])
)
const labelCandidates: LabelCandidate[] =
xColumnAtLastTimePoint.owidRows.map((row) =>
MarimekkoChart.labelCandidateFromItem(
{
entityName: row.entityName,
xValue: row.value,
ySortValue: ySizeMap.get(row.entityName),
},
baseFontSize,
selectedItemsSet.has(row.entityName)
)
)
labelCandidates.sort((a, b) => {
const yRowsForA = a.item.ySortValue
const yRowsForB = b.item.ySortValue
if (yRowsForA !== undefined && yRowsForB !== undefined)
return yRowsForB - yRowsForA
else if (yRowsForA === undefined && yRowsForB !== undefined)
return -1
else if (yRowsForA !== undefined && yRowsForB === undefined)
return 1
// (yRowsForA === undefined && yRowsForB === undefined)
else return 0
})
const averageCharacterCount =
sumBy(labelCandidates, (item) => item.item.entityName.length) /
labelCandidates.length
const firstDefined = labelCandidates.find(
(item) => item.item.ySortValue !== undefined
)
const labelCharacterCountThreshold = 1.4 * averageCharacterCount
// Always pick the first and last element and the first one that is not undefined for y
// but only if it is less than 1.4 times as long in character count as the average label (avoid
// picking "Democratic Republic of Congo" for this reason and thus needing lots of space)
if (
firstDefined &&
firstDefined.item.entityName.length < labelCharacterCountThreshold
)
firstDefined.isPicked = true
const labelHeight = labelCandidates[0].bounds.height
if (
labelCandidates[labelCandidates.length - 1].item.entityName.length <
labelCharacterCountThreshold
)
labelCandidates[labelCandidates.length - 1].isPicked = true
const availablePixels = xRange[1] - xRange[0]
const numLabelsToAdd = Math.floor(
Math.min(availablePixels / (labelHeight + paddingInPixels) / 4, 20) // factor 4 is arbitrary to taste
)
const chunks = MarimekkoChart.splitIntoEqualDomainSizeChunks(
labelCandidates,
numLabelsToAdd
)
const picks = chunks.flatMap((chunk) => {
const picked = chunk.filter((candidate) => candidate.isPicked)
if (picked.length > 0) return picked
else {
return maxBy(chunk, (candidate) => candidate.item.xValue)
}
})
for (const max of picks) {
if (max) max.isPicked = true
}
const picked = labelCandidates.filter((candidate) => candidate.isPicked)
return picked
}
@computed private get labelsWithPlacementInfo(): LabelWithPlacement[] {
const {
dualAxis,
x0,
placedItemsMap,
labels,
unrotatedLongestLabelWidth,
unrotatedHighestLabelHeight,
labelAngleInDegrees,
} = this
const labelsYPosition = dualAxis.verticalAxis.place(0)
const labelsWithPlacements: LabelWithPlacement[] = labels
.map(({ candidate, labelElement }) => {
const item = placedItemsMap.get(candidate.item.entityName)
const xPoint = item?.xPoint.value ?? 0
const barWidth =
dualAxis.horizontalAxis.place(xPoint) -
dualAxis.horizontalAxis.place(x0)
const labelId = candidate.item.entityName
if (!item) {
console.error(
"Could not find item",
candidate.item.entityName
)
return null
} else {
const currentX =
dualAxis.horizontalAxis.place(x0) + item.xPosition
const labelWithPlacement = {
label: (
<g
transform={`translate(${0}, ${labelsYPosition})`}
>
{labelElement}
</g>
),
preferredPlacement: currentX + barWidth / 2,
correctedPlacement: currentX + barWidth / 2,
labelKey: labelId,
}
return labelWithPlacement
}
})
.filter(
(item: LabelWithPlacement | null): item is LabelWithPlacement =>
item !== null
)
// This collision detection code is optimized for the particular
// case of distributing items in 1D, knowing that we picked a low
// enough number of labels that we will be able to fit all labels.
// The algorithm iterates the list twice, i.e. works in linear time
// with the number of labels to show
// The logic in pseudo code:
// for current, next in iterate-left-to-right-pairs:
// if next.x < current.x + label-width:
// next.x = current.x + label-width
// last.x = Math.min(last.x, max-x)
// for current, prev in iterate-right-to-left-pairs:
// if prev.x > current.x - label-width:
// prev.x = current.x - label-width
// The label width is uniform for now and starts with
// the height of a label when printed in normal horizontal layout
// Since labels are rotated we need to make a bit more space so that they
// stack correctly. Consider:
// ╱---╱ ╱---╱
// ╱ ╱ ╱ ╱
// ╱ ╱ ╱ ╱
// ╱---╱ ╱---╱
// If we would just use exactly the label width then the flatter the angle
// the more they would actually overlap so we need a correction factor. It turns
// out than tan(angle) is the correction factor we want, although for horizontal
// labels we don't want to use +infinity :) so we Math.min it with the longest label width
if (labelsWithPlacements.length === 0) return []
labelsWithPlacements.sort(
(a, b) => a.preferredPlacement - b.preferredPlacement
)
const labelWidth = unrotatedHighestLabelHeight
const correctionFactor =
1 +
Math.min(
unrotatedLongestLabelWidth / labelWidth,
Math.abs(Math.tan(labelAngleInDegrees))
)
const correctedLabelWidth = labelWidth * correctionFactor
for (let i = 0; i < labelsWithPlacements.length - 1; i++) {
const current = labelsWithPlacements[i]
const next = labelsWithPlacements[i + 1]
const minNextX = current.correctedPlacement + correctedLabelWidth
if (next.correctedPlacement < minNextX)
next.correctedPlacement = minNextX
}
labelsWithPlacements[
labelsWithPlacements.length - 1
].correctedPlacement = Math.min(
labelsWithPlacements[labelsWithPlacements.length - 1]
.correctedPlacement,
dualAxis.horizontalAxis.rangeSize
)
for (let i = labelsWithPlacements.length - 1; i > 0; i--) {
const current = labelsWithPlacements[i]
const previous = labelsWithPlacements[i - 1]
const maxPreviousX =
current.correctedPlacement - correctedLabelWidth
if (previous.correctedPlacement > maxPreviousX)
previous.correctedPlacement = maxPreviousX
}
return labelsWithPlacements
}
@computed private get labelLines(): JSX.Element[] {
const { labelsWithPlacementInfo, dualAxis, selectedItems } = this
const shiftedGroups: LabelWithPlacement[][] = []
const unshiftedElements: LabelWithPlacement[] = []
const selectedItemsKeys = new Set(
selectedItems.map((item) => item.entityName)
)
let startNewGroup = true
const barEndpointY = dualAxis.verticalAxis.place(0)
for (const labelWithPlacement of labelsWithPlacementInfo) {
if (
labelWithPlacement.preferredPlacement ===
labelWithPlacement.correctedPlacement
) {
unshiftedElements.push(labelWithPlacement)
startNewGroup = true
} else {
if (startNewGroup) {
shiftedGroups.push([labelWithPlacement])
startNewGroup = false
} else {
shiftedGroups[shiftedGroups.length - 1].push(
labelWithPlacement
)
}
}
}
// If we wanted to hide the label lines if all lines are straight
// then we could do this but this makes it jumpy over time
// if (shiftedGroups.length === 0) return []
// else {
const labelLines: JSX.Element[] = []
for (const group of shiftedGroups) {
let indexInGroup = 0
for (const item of group) {
const lineColor = selectedItemsKeys.has(item.labelKey)
? "#999"
: "#bbb"
const markerBarEndpointX = item.preferredPlacement
const markerTextEndpointX = item.correctedPlacement
const markerBarEndpointY = barEndpointY + MARKER_MARGIN
const markerTextEndpointY =
barEndpointY + MARKER_AREA_HEIGHT - MARKER_MARGIN
const markerNetHeight = MARKER_AREA_HEIGHT - 2 * MARKER_MARGIN
const markerStepSize = markerNetHeight / (group.length + 1)
const directionUnawareMakerYMid =
(indexInGroup + 1) * markerStepSize
const markerYMid =
markerBarEndpointX > markerTextEndpointX
? directionUnawareMakerYMid
: markerNetHeight - directionUnawareMakerYMid
labelLines.push(
<g className="indicator" key={`labelline-${item.labelKey}`}>
<path
d={`M${markerBarEndpointX},${markerBarEndpointY} v${markerYMid} H${markerTextEndpointX} V${markerTextEndpointY}`}
stroke={lineColor}
strokeWidth={1}
fill="none"
/>
</g>
)
indexInGroup++
}
}
for (const item of unshiftedElements) {
const lineColor = selectedItemsKeys.has(item.labelKey)
? "#555"
: "#bbb"
const markerBarEndpointX = item.preferredPlacement
const markerBarEndpointY = barEndpointY + MARKER_MARGIN
const markerTextEndpointY =
barEndpointY + MARKER_AREA_HEIGHT - MARKER_MARGIN
labelLines.push(
<g className="indicator" key={`labelline-${item.labelKey}`}>
<path
d={`M${markerBarEndpointX},${markerBarEndpointY} V${markerTextEndpointY}`}
stroke={lineColor}
strokeWidth={1}
fill="none"
/>
</g>
)
}
return labelLines
//}
}
@computed private get placedLabels(): JSX.Element[] {
const labelOffset = MARKER_AREA_HEIGHT
// old logic tried to hide labellines but that is too jumpy
// labelLines.length
// ? MARKER_AREA_HEIGHT
// : this.baseFontSize / 2
const placedLabels = this.labelsWithPlacementInfo.map((item) => (
<g
key={`label-${item.labelKey}`}
className="bar-label"
transform={`translate(${item.correctedPlacement}, ${labelOffset})`}
>
{item.label}
</g>
))
return placedLabels
}
@computed private get unrotatedLongestLabelWidth(): number {
const widths = this.pickedLabelCandidates.map(
(candidate) => candidate.bounds.width
)
const maxWidth = Math.max(...widths)
return maxWidth
}
@computed private get unrotatedHighestLabelHeight(): number {
const heights = this.pickedLabelCandidates.map(
(candidate) => candidate.bounds.height
)
return Math.max(...heights)
}
@computed private get longestLabelHeight(): number {
// This takes the angle of rotation of the entity labels into account
// This is somewhat simplified as we treat this as a one-dimensional
// entity whereas in reality the textbox if of course 2D. To account
// for that we do max(fontSize, rotatedLabelHeight) in the end
// as a rough proxy
const rotatedLabelHeight =
this.unrotatedLongestLabelWidth *
Math.abs(Math.sin((this.labelAngleInDegrees * Math.PI) / 180))
return Math.max(this.fontSize, rotatedLabelHeight)
}
@computed private get longestLabelWidth(): number {
// This takes the angle of rotation of the entity labels into account
// This is somewhat simplified as we treat this as a one-dimensional
// entity whereas in reality the textbox if of course 2D. To account
// for that we do max(fontSize, rotatedLabelHeight) in the end
// as a rough proxy
const rotatedLabelWidth =
this.unrotatedLongestLabelWidth *
Math.abs(Math.cos((this.labelAngleInDegrees * Math.PI) / 180))
return Math.max(this.fontSize, rotatedLabelWidth)
}
@computed private get labels(): LabelCandidateWithElement[] {
const { labelAngleInDegrees, series, domainColorForEntityMap } = this
return this.pickedLabelCandidates.map((candidate) => {
const labelX = candidate.bounds.width
const domainColor = domainColorForEntityMap.get(
candidate.item.entityName
)
const seriesColor = series[0].color
const color = domainColor?.color ?? seriesColor ?? "#000"
return {
candidate,
labelElement: (
<text
key={`${candidate.item.entityName}-label`}
x={-labelX}
y={0}
width={candidate.bounds.width}
height={candidate.bounds.height}
fontWeight={candidate.isSelected ? 700 : 400}
fill={color}
transform={`rotate(${labelAngleInDegrees}, 0, 0)`}
opacity={1}
fontSize="0.7em"
textAnchor="right"
dominantBaseline="middle"
onMouseOver={(): void =>
this.onEntityMouseOver(candidate.item.entityName)
}
onMouseLeave={(): void => this.onEntityMouseLeave()}
onClick={(): void =>
this.onEntityClick(candidate.item.entityName)
}
>
{candidate.item.entityName}
</text>
),
}
})
}
static Tooltip(props: TooltipProps): JSX.Element {
const isSingleVariable = props.item.bars.length === 1
// shouldShowXTimeNoitice is a bit of a lie since at the moment we don't include
// entities that don't have x values for the current year. This might change though
// and then the mechanism is already in place
const shouldShowXTimeNotice =
props.item.xPoint.time !== props.targetTime
let hasTimeNotice = shouldShowXTimeNotice
const header = isSingleVariable ? (
<tr>
<td>
<div
style={{
width: "10px",
height: "10px",
backgroundColor: props.item.entityColor?.color,
display: "inline-block",
}}
/>
</td>
<td colSpan={3} style={{ color: "#111" }}>
<strong>{props.item.entityName}</strong>
</td>
</tr>
) : (
<tr>
<td colSpan={4} style={{ color: "#111" }}>
<strong>{props.item.entityName}</strong>
</td>
</tr>
)
return (
<table
style={{
lineHeight: "1em",
whiteSpace: "normal",
borderSpacing: "0.5em",
}}
>
<tbody>
{header}
{props.item.bars.map((bar) => {
const { highlightedSeriesName } = props
const squareColor = bar.color
const isHighlighted =
bar.seriesName === highlightedSeriesName
const isFaint =
highlightedSeriesName !== undefined &&
!isHighlighted
const shouldShowYTimeNotice =
bar.yPoint.value !== undefined &&
bar.yPoint.time !== props.targetTime
hasTimeNotice ||= shouldShowYTimeNotice
const colorSquare = isSingleVariable ? null : (
<div
style={{
width: "10px",
height: "10px",
backgroundColor: squareColor,
display: "inline-block",
}}
/>
)
return (
<tr
key={`${bar.seriesName}`}
style={{
color: isHighlighted
? "#000"
: isFaint
? "#707070"
: "#444",
}}
>
<td>{colorSquare}</td>
<td
style={{
paddingRight: "0.8em",
fontSize: "0.9em",
}}
>
{bar.seriesName}
</td>
<td
style={{
textAlign: "right",
whiteSpace: "nowrap",
}}
>
{bar.yPoint.value === undefined
? "No data"
: props.yAxisColumn.formatValueShort(
bar.yPoint.value,
{
noTrailingZeroes: false,
}
)}
</td>
{shouldShowYTimeNotice && (
<td
style={{
fontWeight: "normal",
color: "#707070",
fontSize: "0.8em",
whiteSpace: "nowrap",
paddingLeft: "8px",
}}
>
<span className="icon">
<FontAwesomeIcon
icon={faInfoCircle}
style={{
marginRight: "0.25em",
}}
/>{" "}
</span>
{props.timeColumn.formatValue(
bar.yPoint.time
)}
</td>
)}
</tr>
)
})}
<tr>
<td></td>
<td>{props.xAxisColumn.displayName}</td>
<td
style={{
textAlign: "right",
whiteSpace: "nowrap",
}}
>
{props.xAxisColumn.formatValueShort(
props.item.xPoint.value
)}
{shouldShowXTimeNotice && (
<td
style={{
fontWeight: "normal",
color: "#707070",
fontSize: "0.8em",
whiteSpace: "nowrap",
paddingLeft: "8px",
}}
>
<span className="icon">
<FontAwesomeIcon
icon={faInfoCircle}
style={{
marginRight: "0.25em",
}}
/>{" "}
</span>
{props.timeColumn.formatValue(
props.item.xPoint.time
)}
</td>
)}
</td>
<td></td>
</tr>
{hasTimeNotice && (
<tr>
<td
colSpan={4}
style={{
color: "#707070",
fontSize: "0.8em",
paddingTop: "10px",
}}
>
<div style={{ display: "flex" }}>
<span
className="icon"
style={{ marginRight: "0.5em" }}
>
<FontAwesomeIcon icon={faInfoCircle} />{" "}
</span>
<span>
No data available for{" "}
{props.timeColumn.formatValue(
props.targetTime
)}
. Showing closest available data point
instead.
</span>
</div>
</td>
</tr>
)}
</tbody>
</table>
)
}
@computed get failMessage(): string {
const column = this.yColumns[0]
const { yColumns, yColumnSlugs, xColumn } = this
if (!column) return "No Y column to chart"
if (!xColumn) return "No X column to chart"
return yColumns.every((col) => col.isEmpty)
? `No matching data in columns ${yColumnSlugs.join(", ")}`
: ""
}
}
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