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import { computed } from "mobx"
import { Triangle } from "./Triangle"
import { TextWrap } from "../text/TextWrap"
import { BASE_FONT_SIZE } from "../core/GrapherConstants"
export interface ConnectedScatterLegendManager {
sidebarWidth: number
displayStartTime: string
displayEndTime: string
fontSize?: number
compareEndPointsOnly?: boolean
}
export class ConnectedScatterLegend {
manager: ConnectedScatterLegendManager
constructor(manager: ConnectedScatterLegendManager) {
this.manager = manager
}
@computed get fontSize(): number {
return 0.7 * (this.manager.fontSize ?? BASE_FONT_SIZE)
}
@computed get fontColor(): string {
return "#333"
}
@computed get maxLabelWidth(): number {
return this.manager.sidebarWidth / 3
}
@computed get startLabel(): TextWrap {
const { manager, maxLabelWidth, fontSize } = this
return new TextWrap({
text: manager.displayStartTime,
fontSize,
maxWidth: maxLabelWidth,
})
}
@computed get endLabel(): TextWrap {
const { manager, maxLabelWidth, fontSize } = this
return new TextWrap({
text: manager.displayEndTime,
fontSize,
maxWidth: maxLabelWidth,
})
}
@computed get width(): number {
return this.manager.sidebarWidth
}
@computed get height(): number {
return Math.max(this.startLabel.height, this.endLabel.height)
}
render(
targetX: number,
targetY: number,
renderOptions: React.SVGAttributes<SVGGElement> = {}
): JSX.Element {
const { manager, startLabel, endLabel, fontColor } = this
const lineLeft = targetX + startLabel.width + 5
const lineRight = targetX + manager.sidebarWidth - endLabel.width - 5
const lineY = targetY + this.height / 2 - 0.5
return (
<g className="ConnectedScatterLegend" {...renderOptions}>
<rect
x={targetX}
y={targetY}
width={this.width}
height={this.height}
fill="#fff"
opacity={0}
/>
{startLabel.render(targetX, targetY, { fill: fontColor })}
{endLabel.render(
targetX + manager.sidebarWidth - endLabel.width,
targetY,
{ fill: fontColor }
)}
<line
x1={lineLeft}
y1={lineY}
x2={lineRight}
y2={lineY}
stroke="#666"
strokeWidth={1}
/>
<circle
cx={lineLeft}
cy={lineY}
r={2}
fill="#666"
stroke="#ccc"
strokeWidth={0.2}
/>
{!manager.compareEndPointsOnly && (
<React.Fragment>
<circle
cx={lineLeft + (lineRight - lineLeft) / 3}
cy={lineY}
r={2}
fill="#666"
stroke="#ccc"
strokeWidth={0.2}
/>
<circle
cx={lineLeft + (2 * (lineRight - lineLeft)) / 3}
cy={lineY}
r={2}
fill="#666"
stroke="#ccc"
strokeWidth={0.2}
/>
</React.Fragment>
)}
<Triangle
cx={lineRight}
cy={lineY}
r={3}
fill="#666"
stroke="#ccc"
strokeWidth={0.2}
transform={`rotate(${90}, ${lineRight}, ${lineY})`}
/>
</g>
)
}
}
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