622 lines
19 KiB
TypeScript
622 lines
19 KiB
TypeScript
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import { AxisBottom, AxisLeft } from "@visx/axis";
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import { bottomTickLabelProps } from "@visx/axis/lib/axis/AxisBottom";
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import { leftTickLabelProps } from "@visx/axis/lib/axis/AxisLeft";
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import { GridColumns, GridRows } from "@visx/grid";
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import { Group } from "@visx/group";
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import { LegendOrdinal } from "@visx/legend";
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import { scaleBand, scaleLinear, scaleOrdinal } from "@visx/scale";
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import { Bar, BarGroup, BarGroupHorizontal } from "@visx/shape";
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import { BarGroupBar as BarGroupBarType } from "@visx/shape/lib/types";
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import { Text } from "@visx/text";
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import React, { useState } from "react";
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import { Color } from "utils/Color";
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import styles from "./GroupedBarGraph.module.css";
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interface GroupedBarGraphProps {
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data: GroupedBarGraphData[];
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/** Colours of bars in each group. */
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barColors: string[];
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/** Object mapping from the possible colours of bars in each group (barColors) to the colour of the bar when hovered. */
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barHoverColorsMap: Record<string, string>;
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/** Width of the entire graph, in pixels. */
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width: number;
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/** Height of the entire graph, in pixels. */
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height: number;
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/** Distance between the edge of the graph and the area where the bars are drawn, in pixels. */
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margin: {
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top: number;
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bottom: number;
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left: number;
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right: number;
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};
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className?: string;
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/** Font size of the category axis tick labels, in pixels. Default is 16px. */
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categoryTickLabelSize?: number;
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/** Font size of the value axis tick labels, in pixels. Default is 16px. */
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valueTickLabelSize?: number;
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/** Font size of the value that appears when hovering over a bar, in pixels. */
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hoverLabelSize?: number;
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/** Label text for the category axis. */
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categoryAxisLabel?: string;
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/** Font size of the label for the cateogry axis, in pixels. */
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categoryAxisLabelSize?: number;
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/** Controls the distance between the category axis label and the category axis. */
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categoryAxisLabelOffset?: number;
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/** Label text for the value axis. */
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valueAxisLabel?: string;
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/** Font size of the label for the value axis, in pixels. */
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valueAxisLabelSize?: number;
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/** Controls the distance between the value axis label and the value axis. */
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valueAxisLabelOffset?: number;
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legendProps?: LegendProps;
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}
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// Best format for props
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interface GroupedBarGraphData {
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category: string;
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values: {
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[key: string]: number;
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};
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}
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// Best format for visx
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interface BarGroupData {
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category: string;
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[key: string]: string | number;
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}
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interface LegendProps {
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/** Position of the legend, relative to the graph. */
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position?: "top" | "right";
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/** Font size of the labels in the legend, in pixels. Default is 16px. */
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itemLabelSize?: number;
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/** Gap between items in the legend, in pixels. */
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itemGap?: number;
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/** Distance between the legend and other adjacent elements, in pixels. */
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margin?: {
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top?: number;
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bottom?: number;
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left?: number;
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right?: number;
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};
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}
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// BAR_PADDING must be in the range [0, 1)
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const BAR_PADDING = 0.2;
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const BAR_TEXT_PADDING = 12;
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const DEFAULT_LABEL_SIZE = 16;
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const DEFAULT_LEGEND_GAP = 16;
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export function GroupedBarGraphVertical(props: GroupedBarGraphProps) {
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const {
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data: propsData,
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barColors,
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barHoverColorsMap,
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width,
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height,
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margin,
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className,
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categoryTickLabelSize = DEFAULT_LABEL_SIZE,
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valueTickLabelSize = DEFAULT_LABEL_SIZE,
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hoverLabelSize,
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categoryAxisLabel,
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categoryAxisLabelSize = DEFAULT_LABEL_SIZE,
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categoryAxisLabelOffset = 0,
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valueAxisLabel,
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valueAxisLabelSize = DEFAULT_LABEL_SIZE,
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valueAxisLabelOffset = 0,
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legendProps,
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} = props;
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const {
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position: legendPosition = "right",
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itemLabelSize: legendLabelSize = DEFAULT_LABEL_SIZE,
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itemGap: legendItemGap = DEFAULT_LEGEND_GAP,
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margin: legendMargin = {},
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} = legendProps ?? {};
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const data: BarGroupData[] = propsData.map((datum: GroupedBarGraphData) => {
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return { category: datum.category, ...datum.values };
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});
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const keys = Object.keys(propsData[0].values);
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propsData.forEach((d: GroupedBarGraphData) => {
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const currentKeys = Object.keys(d.values);
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if (
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keys.length != currentKeys.length ||
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!keys.every((key: string) => currentKeys.includes(key))
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) {
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throw new Error(
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"Every category in a GroupedBarGraph must have the same keys. Check the data prop"
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);
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}
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});
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const allValues = propsData
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.map((d: GroupedBarGraphData) => Object.values(d.values))
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.flat();
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const categoryMax = width - margin.left - margin.right;
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const valueMax = height - margin.top - margin.bottom;
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const getCategory = (d: BarGroupData) => d.category;
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const categoryScale = scaleBand({
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domain: data.map(getCategory),
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padding: BAR_PADDING,
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});
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const keyScale = scaleBand({
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domain: keys,
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});
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const valueScale = scaleLinear<number>({
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domain: [0, Math.max(...allValues)],
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});
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const colorScale = scaleOrdinal<string, string>({
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domain: keys,
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range: barColors,
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});
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categoryScale.rangeRound([0, categoryMax]);
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keyScale.rangeRound([0, categoryScale.bandwidth()]);
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valueScale.rangeRound([valueMax, 0]);
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return (
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<div
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className={className ? `${className} ${styles.wrapper}` : styles.wrapper}
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style={{
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flexDirection: legendPosition === "right" ? "row" : "column-reverse",
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}}
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>
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<svg width={width} height={height}>
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<defs>
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{Object.keys(barHoverColorsMap).map((color: string) => {
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// remove brackets from colour name to make ids work
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const colorId = removeBrackets(color);
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return (
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<filter key={`glow-${color}`} id={`glow-${colorId}`}>
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<feDropShadow
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dx="0"
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dy="0"
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stdDeviation="4"
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floodColor={barHoverColorsMap[color]}
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/>
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</filter>
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);
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})}
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</defs>
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<Group top={margin.top} left={margin.left}>
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<Group>
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{data.map((d, idx) => {
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const barName = `${getCategory(d)}-${idx}`;
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const barWidth = categoryScale.bandwidth();
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const backgroundBarWidth = barWidth / (1 - BAR_PADDING);
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return idx % 2 === 0 ? (
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<Bar
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className={styles.barBackground}
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key={`bar-${barName}-background`}
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x={
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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categoryScale(getCategory(d))! -
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(backgroundBarWidth - barWidth) / 2
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}
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y={0}
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width={backgroundBarWidth}
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height={valueMax}
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/>
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) : null;
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})}
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</Group>
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<GridRows
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scale={valueScale}
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width={categoryMax}
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numTicks={5}
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stroke={Color.label}
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strokeWidth={4}
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strokeDasharray="10"
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strokeLinecap="round"
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/>
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<BarGroup
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data={data}
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keys={keys}
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height={valueMax}
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x0={getCategory}
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x0Scale={categoryScale}
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x1Scale={keyScale}
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yScale={valueScale}
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color={colorScale}
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>
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{(barGroups) =>
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barGroups.map((barGroup) => (
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<Group
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key={`bar-group-${barGroup.x0}-${barGroup.index}`}
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left={barGroup.x0}
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>
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{barGroup.bars.map((bar) => (
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<HoverableBar
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key={`bar-group-bar-${barGroup.x0}-${barGroup.index}-${bar.key}-${bar.index}`}
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bar={bar}
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valueMax={valueMax}
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hoverFillColor={barHoverColorsMap[bar.color]}
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hoverLabelSize={hoverLabelSize}
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/>
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))}
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</Group>
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))
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}
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</BarGroup>
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</Group>
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<AxisBottom
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scale={categoryScale}
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top={valueMax + margin.top}
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left={margin.left}
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hideAxisLine
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hideTicks
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tickLabelProps={() => {
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return {
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...bottomTickLabelProps(),
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className: styles.tickLabel,
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dy: "-0.25rem",
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fontSize: `${categoryTickLabelSize / 16}rem`,
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width: categoryScale.bandwidth(),
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verticalAnchor: "start",
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};
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}}
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label={categoryAxisLabel}
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labelClassName={styles.axisLabel}
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labelOffset={categoryAxisLabelOffset}
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labelProps={{
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fontSize: `${categoryAxisLabelSize / 16}rem`,
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}}
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/>
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<AxisLeft
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scale={valueScale}
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top={margin.top}
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left={margin.left}
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hideAxisLine
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hideTicks
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numTicks={5}
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tickLabelProps={() => {
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return {
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...leftTickLabelProps(),
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className: styles.tickLabel,
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dx: "-0.5rem",
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dy: "0.25rem",
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fontSize: `${valueTickLabelSize / 16}rem`,
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};
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}}
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label={valueAxisLabel}
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labelClassName={styles.axisLabel}
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labelOffset={valueAxisLabelOffset}
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labelProps={{
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fontSize: `${valueAxisLabelSize / 16}rem`,
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}}
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/>
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</svg>
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<LegendOrdinal
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className={styles.legend}
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style={{
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marginTop: legendMargin.top,
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marginRight: legendMargin.right,
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marginBottom: legendMargin.bottom,
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marginLeft: legendMargin.left,
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fontSize: legendLabelSize,
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}}
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scale={colorScale}
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direction={legendPosition === "right" ? "column" : "row"}
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itemMargin={
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legendPosition === "right"
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? `calc(${legendItemGap / 2}rem / 16) 0 calc(${
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legendItemGap / 2
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}rem / 16) 0`
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: `0 calc(${legendItemGap / 2}rem / 16) 0 calc(${
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legendItemGap / 2
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}rem / 16)`
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}
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/>
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</div>
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);
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}
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export function GroupedBarGraphHorizontal(props: GroupedBarGraphProps) {
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const {
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data: propsData,
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barColors,
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barHoverColorsMap,
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width,
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height,
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margin,
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className,
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categoryTickLabelSize = DEFAULT_LABEL_SIZE,
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valueTickLabelSize = DEFAULT_LABEL_SIZE,
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hoverLabelSize,
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categoryAxisLabel,
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categoryAxisLabelSize = DEFAULT_LABEL_SIZE,
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categoryAxisLabelOffset = 0,
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valueAxisLabel,
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valueAxisLabelSize = DEFAULT_LABEL_SIZE,
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valueAxisLabelOffset = 0,
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legendProps,
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} = props;
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const {
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position: legendPosition = "top",
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itemLabelSize: legendLabelSize = DEFAULT_LABEL_SIZE,
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itemGap: legendItemGap = DEFAULT_LEGEND_GAP,
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margin: legendMargin = {},
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} = legendProps ?? {};
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const data: BarGroupData[] = propsData.map((datum: GroupedBarGraphData) => {
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return { category: datum.category, ...datum.values };
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});
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const keys = Object.keys(propsData[0].values);
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propsData.forEach((d: GroupedBarGraphData) => {
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const currentKeys = Object.keys(d.values);
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if (
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keys.length != currentKeys.length ||
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!keys.every((key: string) => currentKeys.includes(key))
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) {
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throw new Error(
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"Every category in a GroupedBarGraph must have the same keys. Check the data prop"
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);
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}
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});
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const allValues = propsData
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.map((d: GroupedBarGraphData) => Object.values(d.values))
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.flat();
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const categoryMax = height - margin.top - margin.bottom;
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const valueMax = width - margin.left - margin.right;
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const getCategory = (d: BarGroupData) => d.category;
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const categoryScale = scaleBand({
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domain: data.map(getCategory),
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padding: BAR_PADDING,
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});
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const keyScale = scaleBand({
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domain: keys,
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});
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const valueScale = scaleLinear<number>({
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domain: [Math.max(...allValues), 0],
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});
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const colorScale = scaleOrdinal<string, string>({
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domain: keys,
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range: barColors,
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});
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categoryScale.rangeRound([0, categoryMax]);
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keyScale.rangeRound([0, categoryScale.bandwidth()]);
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valueScale.rangeRound([valueMax, 0]);
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return (
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<div
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className={className ? `${className} ${styles.wrapper}` : styles.wrapper}
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style={{
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flexDirection: legendPosition === "right" ? "row" : "column-reverse",
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}}
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>
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<svg width={width} height={height}>
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<defs>
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{Object.keys(barHoverColorsMap).map((color: string) => {
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// remove brackets from colour name to make ids work
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const colorId = removeBrackets(color);
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return (
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<filter key={`glow-${color}`} id={`glow-${colorId}`}>
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<feDropShadow
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dx="0"
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dy="0"
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stdDeviation="4"
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floodColor={barHoverColorsMap[color]}
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/>
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</filter>
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);
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})}
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</defs>
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<Group top={margin.top} left={margin.left}>
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<Group>
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{data.map((d, idx) => {
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const barName = `${getCategory(d)}-${idx}`;
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const barWidth = categoryScale.bandwidth();
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const backgroundBarWidth = barWidth / (1 - BAR_PADDING);
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return idx % 2 === 0 ? (
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<Bar
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className={styles.barBackground}
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key={`bar-${barName}-background`}
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x={0}
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y={
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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categoryScale(getCategory(d))! -
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(backgroundBarWidth - barWidth) / 2
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}
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width={valueMax}
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height={backgroundBarWidth}
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/>
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) : null;
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})}
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</Group>
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<GridColumns
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scale={valueScale}
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height={categoryMax}
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numTicks={5}
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stroke={Color.label}
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strokeWidth={4}
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strokeDasharray="10"
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strokeLinecap="round"
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/>
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<BarGroupHorizontal
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data={data}
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keys={keys}
|
||
|
width={valueMax}
|
||
|
y0={getCategory}
|
||
|
y0Scale={categoryScale}
|
||
|
y1Scale={keyScale}
|
||
|
xScale={valueScale}
|
||
|
color={colorScale}
|
||
|
>
|
||
|
{(barGroups) =>
|
||
|
barGroups.map((barGroup) => (
|
||
|
<Group
|
||
|
key={`bar-group-${barGroup.y0}-${barGroup.index}`}
|
||
|
top={barGroup.y0}
|
||
|
>
|
||
|
{barGroup.bars.map((bar) => (
|
||
|
<HoverableBar
|
||
|
key={`bar-group-bar-${barGroup.y0}-${barGroup.index}-${bar.key}-${bar.index}`}
|
||
|
bar={bar}
|
||
|
valueMax={valueMax}
|
||
|
hoverFillColor={barHoverColorsMap[bar.color]}
|
||
|
hoverLabelSize={hoverLabelSize}
|
||
|
isHorizontal
|
||
|
/>
|
||
|
))}
|
||
|
</Group>
|
||
|
))
|
||
|
}
|
||
|
</BarGroupHorizontal>
|
||
|
</Group>
|
||
|
<AxisLeft
|
||
|
scale={categoryScale}
|
||
|
top={margin.top}
|
||
|
left={margin.left}
|
||
|
hideAxisLine
|
||
|
hideTicks
|
||
|
tickLabelProps={() => {
|
||
|
return {
|
||
|
...leftTickLabelProps(),
|
||
|
className: styles.tickLabel,
|
||
|
dx: "-0.5rem",
|
||
|
dy: "0.25rem",
|
||
|
fontSize: `${valueTickLabelSize / 16}rem`,
|
||
|
height: categoryScale.bandwidth(),
|
||
|
};
|
||
|
}}
|
||
|
label={categoryAxisLabel}
|
||
|
labelClassName={styles.axisLabel}
|
||
|
labelOffset={categoryAxisLabelOffset}
|
||
|
labelProps={{
|
||
|
fontSize: `${categoryAxisLabelSize / 16}rem`,
|
||
|
}}
|
||
|
/>
|
||
|
<AxisBottom
|
||
|
scale={valueScale}
|
||
|
top={categoryMax + margin.top}
|
||
|
left={margin.left}
|
||
|
hideAxisLine
|
||
|
hideTicks
|
||
|
numTicks={5}
|
||
|
tickLabelProps={() => {
|
||
|
return {
|
||
|
...bottomTickLabelProps(),
|
||
|
className: styles.tickLabel,
|
||
|
dy: "-0.25rem",
|
||
|
fontSize: `${categoryTickLabelSize / 16}rem`,
|
||
|
verticalAnchor: "start",
|
||
|
};
|
||
|
}}
|
||
|
label={valueAxisLabel}
|
||
|
labelClassName={styles.axisLabel}
|
||
|
labelOffset={valueAxisLabelOffset}
|
||
|
labelProps={{
|
||
|
fontSize: `${valueAxisLabelSize / 16}rem`,
|
||
|
}}
|
||
|
/>
|
||
|
</svg>
|
||
|
<LegendOrdinal
|
||
|
className={styles.legend}
|
||
|
style={{
|
||
|
marginTop: legendMargin.top,
|
||
|
marginRight: legendMargin.right,
|
||
|
marginBottom: legendMargin.bottom,
|
||
|
marginLeft: legendMargin.left,
|
||
|
fontSize: legendLabelSize,
|
||
|
}}
|
||
|
scale={colorScale}
|
||
|
direction={legendPosition === "right" ? "column" : "row"}
|
||
|
itemMargin={
|
||
|
legendPosition === "right"
|
||
|
? `calc(${legendItemGap / 2}rem / 16) 0 calc(${
|
||
|
legendItemGap / 2
|
||
|
}rem / 16) 0`
|
||
|
: `0 calc(${legendItemGap / 2}rem / 16) 0 calc(${
|
||
|
legendItemGap / 2
|
||
|
}rem / 16)`
|
||
|
}
|
||
|
/>
|
||
|
</div>
|
||
|
);
|
||
|
}
|
||
|
|
||
|
interface HoverableBarProps {
|
||
|
bar: BarGroupBarType<string>;
|
||
|
valueMax: number;
|
||
|
hoverFillColor?: string;
|
||
|
hoverLabelSize?: number;
|
||
|
isHorizontal?: boolean;
|
||
|
}
|
||
|
|
||
|
function HoverableBar(props: HoverableBarProps) {
|
||
|
const {
|
||
|
bar,
|
||
|
valueMax,
|
||
|
hoverLabelSize,
|
||
|
hoverFillColor,
|
||
|
isHorizontal = false,
|
||
|
} = props;
|
||
|
|
||
|
const [isHovered, setIsHovered] = useState(false);
|
||
|
|
||
|
const colorId = removeBrackets(bar.color);
|
||
|
|
||
|
return (
|
||
|
<Group
|
||
|
className={styles.singleBar}
|
||
|
onMouseEnter={() => {
|
||
|
setIsHovered(true);
|
||
|
}}
|
||
|
onMouseLeave={() => {
|
||
|
setIsHovered(false);
|
||
|
}}
|
||
|
>
|
||
|
<Bar
|
||
|
x={bar.x}
|
||
|
y={bar.y}
|
||
|
width={bar.width}
|
||
|
height={bar.height}
|
||
|
fill={isHovered && hoverFillColor ? hoverFillColor : bar.color}
|
||
|
// apply the glow effect when the bar is hovered
|
||
|
filter={isHovered ? `url(#glow-${colorId})` : undefined}
|
||
|
/>
|
||
|
<Text
|
||
|
className={styles.barText}
|
||
|
x={isHorizontal ? bar.width - BAR_TEXT_PADDING : bar.x + bar.width / 2}
|
||
|
y={
|
||
|
isHorizontal
|
||
|
? bar.y + bar.height / 2
|
||
|
: valueMax - bar.height + BAR_TEXT_PADDING
|
||
|
}
|
||
|
fontSize={
|
||
|
hoverLabelSize ?? (isHorizontal ? bar.height : bar.width) * 0.5
|
||
|
}
|
||
|
textAnchor={isHorizontal ? "end" : "middle"}
|
||
|
verticalAnchor={isHorizontal ? "middle" : "start"}
|
||
|
>
|
||
|
{bar.value}
|
||
|
</Text>
|
||
|
</Group>
|
||
|
);
|
||
|
}
|
||
|
|
||
|
function removeBrackets(str: string) {
|
||
|
return str.replace(/\(|\)/g, "");
|
||
|
}
|