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import { computed } from "mobx"
import { observer } from "mobx-react"
import { Bounds, DEFAULT_BOUNDS } from "../../clientUtils/Bounds"
import { VerticalAxis, HorizontalAxis, DualAxis } from "./Axis"
import classNames from "classnames"
import { ScaleType } from "../core/GrapherConstants"
import {
HorizontalAlign,
Position,
VerticalAlign,
} from "../../clientUtils/owidTypes"
import { dyFromAlign, textAnchorFromAlign } from "../../clientUtils/Util"
const dasharrayFromFontSize = (fontSize: number): string => {
const dashLength = Math.round((fontSize / 16) * 3)
const spaceLength = Math.round((dashLength * 2) / 3)
return `${dashLength},${spaceLength}`
}
const TICK_COLOR = "#ddd"
const FAINT_TICK_COLOR = "#eee"
const DOMAIN_TICK_COLOR = "#999"
@observer
export class VerticalAxisGridLines extends React.Component<{
verticalAxis: VerticalAxis
bounds: Bounds
}> {
render(): JSX.Element {
const { bounds, verticalAxis } = this.props
const axis = verticalAxis.clone()
axis.range = bounds.yRange()
return (
<g className={classNames("AxisGridLines", "horizontalLines")}>
{axis.getTickValues().map((t, i) => {
const color = t.faint
? FAINT_TICK_COLOR
: t.value === 0
? DOMAIN_TICK_COLOR
: TICK_COLOR
return (
<line
key={i}
x1={bounds.left.toFixed(2)}
y1={axis.place(t.value)}
x2={bounds.right.toFixed(2)}
y2={axis.place(t.value)}
stroke={color}
strokeDasharray={
t.value !== 0
? dasharrayFromFontSize(
verticalAxis.tickFontSize
)
: undefined
}
/>
)
})}
</g>
)
}
}
@observer
export class HorizontalAxisGridLines extends React.Component<{
horizontalAxis: HorizontalAxis
bounds?: Bounds
}> {
@computed get bounds(): Bounds {
return this.props.bounds ?? DEFAULT_BOUNDS
}
render(): JSX.Element {
const { horizontalAxis } = this.props
const { bounds } = this
const axis = horizontalAxis.clone()
axis.range = bounds.xRange()
return (
<g className={classNames("AxisGridLines", "verticalLines")}>
{axis.getTickValues().map((t, i) => {
const color = t.faint
? FAINT_TICK_COLOR
: t.value === 0
? DOMAIN_TICK_COLOR
: TICK_COLOR
return (
<line
key={i}
x1={axis.place(t.value)}
y1={bounds.bottom.toFixed(2)}
x2={axis.place(t.value)}
y2={bounds.top.toFixed(2)}
stroke={color}
strokeDasharray={
t.value !== 0
? dasharrayFromFontSize(
horizontalAxis.tickFontSize
)
: undefined
}
/>
)
})}
</g>
)
}
}
interface DualAxisViewProps {
dualAxis: DualAxis
highlightValue?: { x: number; y: number }
showTickMarks?: boolean
}
@observer
export class DualAxisComponent extends React.Component<DualAxisViewProps> {
render(): JSX.Element {
const { dualAxis, showTickMarks } = this.props
const { bounds, horizontalAxis, verticalAxis, innerBounds } = dualAxis
const verticalGridlines = verticalAxis.hideGridlines ? null : (
<VerticalAxisGridLines
verticalAxis={verticalAxis}
bounds={innerBounds}
/>
)
const horizontalGridlines = horizontalAxis.hideGridlines ? null : (
<HorizontalAxisGridLines
horizontalAxis={horizontalAxis}
bounds={innerBounds}
/>
)
const verticalAxisComponent = verticalAxis.hideAxis ? null : (
<VerticalAxisComponent
bounds={bounds}
verticalAxis={verticalAxis}
/>
)
const horizontalAxisComponent = horizontalAxis.hideAxis ? null : (
<HorizontalAxisComponent
bounds={bounds}
axis={horizontalAxis}
showTickMarks={showTickMarks}
preferredAxisPosition={innerBounds.bottom}
/>
)
return (
<g className="DualAxisView">
{horizontalAxisComponent}
{verticalAxisComponent}
{verticalGridlines}
{horizontalGridlines}
</g>
)
}
}
@observer
export class VerticalAxisComponent extends React.Component<{
bounds: Bounds
verticalAxis: VerticalAxis
}> {
render(): JSX.Element {
const { bounds, verticalAxis } = this.props
const { tickLabels, labelTextWrap } = verticalAxis
const textColor = "#666"
return (
<g className="VerticalAxis">
{labelTextWrap &&
labelTextWrap.render(
-bounds.centerY - labelTextWrap.width / 2,
bounds.left,
{ transform: "rotate(-90)" }
)}
{tickLabels.map((label, i) => {
const { y, xAlign, yAlign, formattedValue } = label
return (
<text
key={i}
x={(
bounds.left +
verticalAxis.width -
verticalAxis.labelPadding
).toFixed(2)}
y={y}
dy={dyFromAlign(yAlign ?? VerticalAlign.middle)}
textAnchor={textAnchorFromAlign(
xAlign ?? HorizontalAlign.right
)}
fill={textColor}
fontSize={verticalAxis.tickFontSize}
>
{formattedValue}
</text>
)
})}
</g>
)
}
}
export class HorizontalAxisComponent extends React.Component<{
bounds: Bounds
axis: HorizontalAxis
showTickMarks?: boolean
preferredAxisPosition?: number
}> {
@computed get scaleType(): ScaleType {
return this.props.axis.scaleType
}
set scaleType(scaleType: ScaleType) {
this.props.axis.config.scaleType = scaleType
}
// for scale selector. todo: cleanup
@computed get bounds(): Bounds {
const { bounds, axis } = this.props
if (axis.orient === Position.top)
return new Bounds(bounds.right, bounds.top + 30, 100, 100)
else return new Bounds(bounds.right, bounds.bottom - 30, 100, 100)
}
render(): JSX.Element {
const { bounds, axis, showTickMarks, preferredAxisPosition } =
this.props
const { tickLabels, labelTextWrap: label, labelOffset, orient } = axis
const horizontalAxisLabelsOnTop = orient === Position.top
const textColor = "#666"
const labelYPosition = horizontalAxisLabelsOnTop
? bounds.top
: bounds.bottom - (label?.height ?? 0)
const tickMarksYPosition = horizontalAxisLabelsOnTop
? bounds.top + axis.height - 5
: preferredAxisPosition ?? bounds.bottom
const tickMarks = showTickMarks ? (
<AxisTickMarks
tickMarkTopPosition={tickMarksYPosition}
tickMarkXPositions={tickLabels.map((label): number =>
axis.place(label.value)
)}
color={DOMAIN_TICK_COLOR}
/>
) : undefined
const tickLabelYPlacement = horizontalAxisLabelsOnTop
? bounds.top + labelOffset + 10
: bounds.bottom - labelOffset
return (
<g className="HorizontalAxis">
{label &&
label.render(
bounds.centerX - label.width / 2,
labelYPosition
)}
{tickMarks}
{tickLabels.map((label, i) => {
const { x, xAlign, formattedValue } = label
return (
<text
key={i}
x={x}
y={tickLabelYPlacement}
fill={textColor}
textAnchor={textAnchorFromAlign(
xAlign ?? HorizontalAlign.center
)}
fontSize={axis.tickFontSize}
>
{formattedValue}
</text>
)
})}
</g>
)
}
}
export class AxisTickMarks extends React.Component<{
tickMarkTopPosition: number
tickMarkXPositions: number[]
color: string
}> {
render(): JSX.Element[] {
const { tickMarkTopPosition, tickMarkXPositions, color } = this.props
const tickSize = 5
const tickBottom = tickMarkTopPosition + tickSize
return tickMarkXPositions.map((tickMarkPosition, index) => {
return (
<line
key={index}
x1={tickMarkPosition}
y1={tickMarkTopPosition}
x2={tickMarkPosition}
y2={tickBottom}
stroke={color}
/>
)
})
}
}
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