Feature/dev 4215f #1386
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| import { Group } from '@visx/group' | ||
| import { useContext, useEffect, useRef, useState } from 'react' | ||
| import ConfigContext from '../ConfigContext' | ||
| import * as d3 from 'd3' | ||
| import { Text } from '@visx/text' | ||
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| function BrushChart({ xMax, yMax }) { | ||
| const { tableData, config, parseDate, setBrushConfig, getTextWidth } = useContext(ConfigContext) | ||
| const [brushState, setBrushState] = useState({ isBrushing: false, selection: [] }) | ||
| const [tooltip, showTooltip] = useState(false) | ||
| const svgRef = useRef() | ||
| const brushheight = 25 | ||
| const borderRadius = 15 | ||
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| const tooltipText = 'Drag edges to focus on a specific segment ' | ||
| const textWidth = getTextWidth(tooltipText, `normal ${16 / 1.1}px sans-serif`) | ||
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| const calculateGroupTop = (): number => { | ||
| return Number(yMax) + config.xAxis.axisBBox + brushheight * 1.5 | ||
| } | ||
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| const handleMouseOver = () => { | ||
| // show tooltip text only once before brush triggered | ||
| if (brushState.selection[0] === 0 && xMax === brushState.selection[1]) { | ||
| showTooltip(true) | ||
| } | ||
| } | ||
| const handleMouseLeave = () => { | ||
| // hide tooltip text if brush was triggered | ||
| if (brushState.selection[0] !== 0 || brushState.selection[1] !== xMax) { | ||
| showTooltip(false) | ||
| } | ||
| showTooltip(false) | ||
| } | ||
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| let brushHandle = (g, selection, firstDate, lastDate) => { | ||
| const textWidth = getTextWidth(firstDate, `normal ${16 / 1.1}px sans-serif`) | ||
| return g | ||
| .selectAll('.handle--custom') | ||
| .data([{ side: 'left' }, { side: 'right' }]) | ||
| .join(enter => { | ||
| const handleGroup = enter.append('g').attr('class', 'handle--custom') | ||
| // Define the path data for left and right handles | ||
| const leftHandlePath = 'M0.5,10A6,6 0 0 1 6.5,16V14A6,6 0 0 1 0.5,20ZM2.5,18V12M4.5,18V12' | ||
| const rightHandlePath = 'M6.5,10A6,6 0 0 0 0.5,16V14A6,6 0 0 0 6.5,20ZM4.5,18V12M2.5,18V12' | ||
| handleGroup | ||
| .append('text') | ||
| .attr('x', d => (d.side === 'left' ? 0 : -textWidth)) | ||
| .attr('y', 30) | ||
| .text(d => (d.side === 'left' ? firstDate : lastDate)) | ||
| .attr('font-size', '13px') | ||
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| // handleGroup // ignore | ||
|
There was a problem hiding this comment. Can we remove this unused code? |
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| // .append('path') | ||
| // .attr('class', 'handle--custom') | ||
| // .attr('cursor', 'ew-resize') | ||
| // .attr('fill', 'blue') | ||
| // .attr('d', d => (d.side === 'left' ? rightHandlePath : leftHandlePath)) | ||
| // .attr('transform', (d, i) => `scale(1.2), translate(${d.side === 'left' ? '-9' : '0'} ,-12)`) | ||
| // .style('pointer-events', 'all') | ||
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| return handleGroup | ||
| }) | ||
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| .attr('display', 'block') | ||
| .attr('transform', selection === null ? null : (d, i) => `translate(${selection[i]},${'10'})`) | ||
| } | ||
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| useEffect(() => { | ||
| const svg = d3 // prettier-ignore | ||
| .select(svgRef.current) | ||
| .attr('overflow', 'visible') | ||
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| // append background rect | ||
| svg | ||
| .append('rect') // prettier-ignore | ||
| .attr('fill', '#949494') | ||
| .attr('stroke', '#c5c5c5') | ||
| .attr('stroke-width', 2) | ||
| .attr('ry', borderRadius) | ||
| .attr('rx', borderRadius) | ||
| .attr('height', brushheight) | ||
| .attr('width', xMax) | ||
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| // calculate x | ||
| const x = d3 | ||
| .scaleTime() | ||
| .domain(d3.extent(tableData, d => parseDate(d[config.runtime.originalXAxis.dataKey]))) | ||
| .range([0, xMax]) | ||
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| const brushHanlder = event => { | ||
| const selection = event?.selection | ||
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| if (selection) { | ||
| // invert pixel values into data values | ||
| const [x0, x1] = selection.map(x.invert) | ||
| // filter out data based on inverted data values | ||
| const newFilteredData = tableData.filter(d => parseDate(d[config.runtime.originalXAxis.dataKey]) >= x0 && parseDate(d[config.runtime.originalXAxis.dataKey]) <= x1) | ||
| const firstDate = newFilteredData[0][config.runtime.originalXAxis.dataKey] ?? '' | ||
| const lastDate = newFilteredData[newFilteredData.length - 1][config.runtime.originalXAxis.dataKey] ?? '' | ||
| // add custom blue colored handlers to each corners of brush | ||
| svg.selectAll('.handle--custom').remove() | ||
| svg.selectAll('.handle--custom').remove() | ||
| // append handler | ||
| svg.call(brushHandle, selection, firstDate, lastDate) | ||
| // update the brush state to add filtered data based on selection | ||
| setBrushConfig(prev => { | ||
| return { | ||
| ...prev, | ||
| isBrushing: true, | ||
| data: newFilteredData | ||
| } | ||
| }) | ||
| setBrushState(() => { | ||
| return { | ||
| isBrushing: true, | ||
| selection | ||
| } | ||
| }) | ||
| } | ||
| } | ||
| // create brush with "start ,brush, end'" states | ||
| const brush = d3 | ||
| .brushX() | ||
| .extent([ | ||
| [0, 0], | ||
| [xMax, brushheight] | ||
| ]) | ||
| .on('start brush end', brushHanlder) | ||
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| const defaultSelection = [0, xMax] | ||
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| const brushGroup = svg.append('g').call(brush).call(brush.move, defaultSelection) | ||
| brushGroup.select('.overlay').style('pointer-events', 'none') | ||
| // svg.call(brushHandle, selection, firstDate, lastDate) | ||
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| brushGroup.selectAll('.selection').attr('fill', '#474747').attr('fill-opacity', 1).attr('rx', borderRadius).attr('ry', borderRadius) | ||
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| return () => { | ||
| svg.selectAll('*').remove() // Cleanup on component unmount | ||
| } | ||
| }, [config]) | ||
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| return ( | ||
| <Group onMouseLeave={handleMouseLeave} onMouseOver={handleMouseOver} className='brush-container' left={Number(config.runtime.yAxis.size)} top={calculateGroupTop()}> | ||
| <Text pointerEvents='visiblePainted' display={tooltip ? 'block' : 'none'} fontSize={16} x={(Number(xMax) - Number(textWidth)) / 2} y={-10}> | ||
| Drag edges to focus on a specific segment | ||
| </Text> | ||
| <svg width={'100%'} height={brushheight * 3} ref={svgRef}></svg> | ||
| </Group> | ||
| ) | ||
| } | ||
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| export default BrushChart | ||
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Should this be const?
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Fixed!