454 lines
14 KiB
TypeScript
454 lines
14 KiB
TypeScript
import { AxisLeft, AxisBottom } from "@visx/axis";
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import { localPoint } from "@visx/event";
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import { GridRows, GridColumns } 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 { Point } from "@visx/point";
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import { scaleBand, scaleLinear, scaleOrdinal } from "@visx/scale";
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import { BarStack, BarStackHorizontal, Line } from "@visx/shape";
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import { SeriesPoint } from "@visx/shape/lib/types";
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import { withTooltip } from "@visx/tooltip";
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import { WithTooltipProvidedProps } from "@visx/tooltip/lib/enhancers/withTooltip";
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import React from "react";
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import { Color } from "utils/Color";
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import { TooltipWrapper } from "./TooltipWrapper";
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import styles from "./StackedBarGraph.module.css";
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interface StackedBarData {
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category: string;
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[key: string]: number | string;
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}
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type TooltipData = {
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bar: SeriesPoint<StackedBarData>;
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key: string;
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index: number;
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height: number;
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width: number;
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x: number;
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y: number;
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color: string;
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};
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export type StackedBarProps = {
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data: StackedBarData[];
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/** Width of the entire graph, in pixels, greater than 10. */
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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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/** Names of the groups appearing in the legend */
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keys: string[];
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/** Colours for each key */
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colorRange: string[];
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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: { top: number; left: number };
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/** Number of ticks for the value axis */
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numTicksValueAxis?: number;
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/** Distance between the left axis labels and the start of the lines of the graph, in px. */
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axisLeftOffset?: number;
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/** Distance between the bottom axis and the bottom of the container of the graph, in px. */
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axisBottomOffset?: number;
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/** Distance between the right side of the graph and the legend, in px. */
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legendLeftOffset?: number;
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/** Distance between the top of the graph and the legend, in px. */
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legendTopOffset?: number;
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/** Width of the lines in the graph, in px. */
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strokeWidth?: number;
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/** Length of the dashes and the gaps in the graph, in px. */
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strokeDashArray?: string;
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/** Padding between each bar in the stacked bar graph, from 0 to 1 */
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scalePadding?: number;
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/** Margin for each item in the legend */
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itemMargin?: string;
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/** Factor multiplied with an offset to center the labels of the category-axis depending on the width/height of the graph.
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* >1 for width/height <600 and <1 for width/height >600 (vertical=width/horizontal=height) */
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categoryAxisLeftFactor?: number;
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};
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let tooltipTimeout: number;
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export const StackedBarGraphVertical = withTooltip<
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StackedBarProps,
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TooltipData
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>(
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({
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data,
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width,
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height,
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keys,
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colorRange,
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margin,
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scalePadding = 0.3,
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numTicksValueAxis = 6,
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axisLeftOffset = 40,
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axisBottomOffset = 40,
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strokeWidth = 2.5,
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strokeDashArray = "10,4",
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legendLeftOffset = 40,
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legendTopOffset = 40,
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itemMargin = "15px 0 0 0",
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categoryAxisLeftFactor = 1,
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tooltipOpen,
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tooltipLeft,
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tooltipTop,
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tooltipData,
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hideTooltip,
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showTooltip,
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}: StackedBarProps & WithTooltipProvidedProps<TooltipData>) => {
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const yTotals = data.reduce((allTotals, currCategory) => {
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const yTotal = keys.reduce((categoryTotal, k) => {
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categoryTotal += currCategory[k] as number;
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return categoryTotal;
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}, 0);
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allTotals.push(yTotal);
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return allTotals;
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}, [] as number[]);
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const TICK_LABEL_FONT_WEIGHT = 800;
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// accessors
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const getCategory = (d: StackedBarData) => d.category;
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// scales
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const categoryScale = scaleBand<string>({
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domain: data.map(getCategory),
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padding: scalePadding,
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});
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const valueScale = scaleLinear<number>({
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domain: [0, Math.max(...yTotals)],
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nice: true,
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});
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const colorScale = scaleOrdinal<string, string>({
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domain: keys,
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range: colorRange,
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});
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// bounds
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const xMax = width;
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const yMax = height - margin.top - axisBottomOffset;
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categoryScale.rangeRound([0, xMax - axisLeftOffset]);
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valueScale.range([yMax, 0]);
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return width < 10 ? null : (
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<div className={styles.container}>
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<svg width={width} height={height}>
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<Group top={margin.top} left={margin.left}>
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<GridRows
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scale={valueScale}
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width={xMax}
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height={yMax}
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left={axisLeftOffset}
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numTicks={numTicksValueAxis}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<GridColumns
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scale={categoryScale}
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height={yMax}
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left={axisLeftOffset}
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offset={categoryScale.bandwidth() / 2}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<Group left={axisLeftOffset}>
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<BarStack<StackedBarData, string>
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data={data}
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keys={keys}
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x={getCategory}
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xScale={categoryScale}
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yScale={valueScale}
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color={colorScale}
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>
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{(barStacks) =>
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barStacks.map((barStack) =>
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barStack.bars.map((bar) => (
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<rect
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className={styles.barStack}
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key={`bar-stack-${barStack.index}-${bar.index}`}
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x={bar.x}
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y={bar.y}
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height={bar.height}
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width={bar.width / 2}
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fill={bar.color}
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onMouseLeave={() => {
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tooltipTimeout = window.setTimeout(() => {
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hideTooltip();
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}, 300);
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}}
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onMouseMove={(event) => {
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if (tooltipTimeout) clearTimeout(tooltipTimeout);
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const eventSvgCoords = localPoint(event);
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const left = bar.x + bar.width / 2;
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showTooltip({
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tooltipData: bar,
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tooltipTop: eventSvgCoords?.y,
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tooltipLeft: left,
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});
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}}
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/>
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))
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)
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}
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</BarStack>
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</Group>
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<Line
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fill={Color.tertiaryBackground}
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to={new Point({ x: axisLeftOffset, y: 0 })}
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from={new Point({ x: axisLeftOffset, y: yMax })}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<AxisBottom
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top={yMax}
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scale={categoryScale}
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left={
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((categoryScale.bandwidth() * 100) / width) *
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categoryAxisLeftFactor
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}
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hideTicks
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hideAxisLine
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labelProps={{
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fontSize: `${10 / 16}rem`,
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}}
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tickLabelProps={() => ({
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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})}
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/>
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<AxisLeft
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scale={valueScale}
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top={5}
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numTicks={numTicksValueAxis}
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hideAxisLine
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labelProps={{
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fontSize: `${10 / 16}rem`,
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}}
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tickLabelProps={() => {
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return {
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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};
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}}
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/>
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</Group>
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</svg>
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<div
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className={styles.legend}
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style={{ left: width + legendLeftOffset, top: legendTopOffset }}
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>
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<LegendOrdinal
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scale={colorScale}
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direction="column"
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itemMargin={itemMargin}
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/>
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</div>
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{tooltipOpen && tooltipData ? (
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<TooltipWrapper
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top={tooltipTop}
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left={tooltipLeft}
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header={tooltipData.key}
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>
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<p>{tooltipData.bar.data[tooltipData.key]}</p>
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<p>{getCategory(tooltipData.bar.data)}</p>
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</TooltipWrapper>
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) : null}
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</div>
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);
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}
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);
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export const StackedBarGraphHorizontal = withTooltip<
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StackedBarProps,
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TooltipData
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>(
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({
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data,
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width,
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height,
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keys,
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colorRange,
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margin,
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scalePadding = 0.3,
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numTicksValueAxis = 6,
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axisLeftOffset = 40,
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axisBottomOffset = 40,
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strokeWidth = 2.5,
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strokeDashArray = "10,4",
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legendLeftOffset = 40,
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legendTopOffset = 40,
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itemMargin = "15px 0 0 0",
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categoryAxisLeftFactor = 1,
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tooltipOpen,
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tooltipLeft,
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tooltipTop,
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tooltipData,
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hideTooltip,
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showTooltip,
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}: StackedBarProps & WithTooltipProvidedProps<TooltipData>) => {
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const yTotals = data.reduce((allTotals, currCategory) => {
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const yTotal = keys.reduce((categoryTotal, k) => {
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categoryTotal += currCategory[k] as number;
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return categoryTotal;
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}, 0);
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allTotals.push(yTotal);
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return allTotals;
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}, [] as number[]);
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const TICK_LABEL_FONT_WEIGHT = 800;
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// accessors
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const getCategory = (d: StackedBarData) => d.category;
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// scales
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const valueScale = scaleLinear<number>({
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domain: [0, Math.max(...yTotals)],
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nice: true,
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});
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const categoryScale = scaleBand<string>({
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domain: data.map(getCategory),
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padding: scalePadding,
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});
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const colorScale = scaleOrdinal<string, string>({
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domain: keys,
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range: colorRange,
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});
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// bounds
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const xMax = width;
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const yMax = height - margin.top - axisBottomOffset;
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categoryScale.rangeRound([yMax, 0]);
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valueScale.range([0, xMax - axisLeftOffset]);
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return width < 10 ? null : (
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<div className={styles.container}>
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<svg width={width} height={height}>
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<Group top={margin.top} left={margin.left}>
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<GridRows
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scale={categoryScale}
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width={xMax}
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height={yMax}
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offset={categoryScale.bandwidth() / 2}
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left={axisLeftOffset}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<GridColumns
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scale={valueScale}
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height={yMax}
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numTicks={numTicksValueAxis}
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left={axisLeftOffset}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<Group left={axisLeftOffset}>
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<BarStackHorizontal<StackedBarData, string>
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data={data}
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keys={keys}
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y={getCategory}
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xScale={valueScale}
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yScale={categoryScale}
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color={colorScale}
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>
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{(barStacks) =>
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barStacks.map((barStack) =>
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barStack.bars.map((bar) => (
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<rect
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className={styles.barStack}
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key={`bar-stack-${barStack.index}-${bar.index}`}
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x={bar.x}
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y={bar.y}
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height={bar.height / 2}
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width={bar.width}
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fill={bar.color}
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onMouseLeave={() => {
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tooltipTimeout = window.setTimeout(() => {
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hideTooltip();
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}, 300);
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}}
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onMouseMove={(event) => {
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if (tooltipTimeout) clearTimeout(tooltipTimeout);
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const eventSvgCoords = localPoint(event);
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const left = bar.x + bar.width / 2;
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showTooltip({
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tooltipData: bar,
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tooltipTop: eventSvgCoords?.y,
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tooltipLeft: left,
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});
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}}
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/>
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))
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)
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}
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</BarStackHorizontal>
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</Group>
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<AxisBottom
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top={yMax}
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scale={valueScale}
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left={axisLeftOffset}
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numTicks={numTicksValueAxis}
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hideAxisLine
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hideTicks
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labelProps={{
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fontSize: `${10 / 16}rem`,
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}}
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tickLabelProps={() => ({
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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})}
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/>
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<AxisLeft
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top={
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-((categoryScale.bandwidth() * 100) / width) *
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categoryAxisLeftFactor
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}
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scale={categoryScale}
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hideAxisLine
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hideTicks
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labelProps={{
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fontSize: `${10 / 16}rem`,
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}}
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tickLabelProps={() => {
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return {
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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};
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}}
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/>
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</Group>
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</svg>
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<div
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className={styles.legend}
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style={{ left: width + legendLeftOffset, top: legendTopOffset }}
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>
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<LegendOrdinal
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scale={colorScale}
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direction="column"
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itemMargin={itemMargin}
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/>
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</div>
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{tooltipOpen && tooltipData ? (
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<TooltipWrapper
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top={tooltipTop}
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left={tooltipLeft}
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header={tooltipData.key}
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>
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<p>{tooltipData.bar.data[tooltipData.key]}</p>
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<p>{getCategory(tooltipData.bar.data)}</p>
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</TooltipWrapper>
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) : null}
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</div>
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);
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}
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);
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