Files
BlockchainUI/src/charts/PieChart.jsx
2022-05-23 12:56:31 +03:00

117 lines
3.6 KiB
JavaScript

import React, { useRef, useEffect } from 'react';
import {
Chart, PieController, ArcElement, TimeScale, Tooltip,
} from 'chart.js';
import 'chartjs-adapter-moment';
// Import utilities
import { tailwindConfig } from '../utils/Utils';
Chart.register(PieController, ArcElement, TimeScale, Tooltip);
function PieChart({
data,
width,
height
}) {
const canvas = useRef(null);
const legend = useRef(null);
useEffect(() => {
const ctx = canvas.current;
// eslint-disable-next-line no-unused-vars
const chart = new Chart(ctx, {
type: 'pie',
data: data,
options: {
layout: {
padding: {
top: 4,
bottom: 4,
left: 24,
right: 24,
},
},
plugins: {
legend: {
display: false,
},
},
interaction: {
intersect: false,
mode: 'nearest',
},
animation: {
duration: 200,
},
maintainAspectRatio: false,
},
plugins: [
{
id: 'htmlLegend',
afterUpdate(c, args, options) {
const ul = legend.current;
if (!ul) return;
// Remove old legend items
while (ul.firstChild) {
ul.firstChild.remove();
}
// Reuse the built-in legendItems generator
const items = c.options.plugins.legend.labels.generateLabels(c);
items.forEach((item) => {
const li = document.createElement('li');
li.style.margin = tailwindConfig().theme.margin[1.5];
// Button element
const button = document.createElement('button');
button.style.display = 'inline-flex';
button.style.alignItems = 'center';
button.style.opacity = item.hidden ? '.3' : '';
button.onclick = () => {
c.toggleDataVisibility(item.index, !item.index);
c.update();
};
// Color box
const box = document.createElement('span');
box.style.display = 'block';
box.style.width = tailwindConfig().theme.width[3];
box.style.height = tailwindConfig().theme.height[3];
box.style.borderRadius = tailwindConfig().theme.borderRadius.full;
box.style.marginRight = tailwindConfig().theme.margin[1.5];
box.style.borderWidth = '3px';
box.style.borderColor = item.fillStyle;
box.style.pointerEvents = 'none';
// Label
const label = document.createElement('span');
label.style.color = tailwindConfig().theme.colors.slate[500];
label.style.fontSize = tailwindConfig().theme.fontSize.sm[0];
label.style.lineHeight = tailwindConfig().theme.fontSize.sm[1].lineHeight;
const labelText = document.createTextNode(item.text);
label.appendChild(labelText);
li.appendChild(button);
button.appendChild(box);
button.appendChild(label);
ul.appendChild(li);
});
},
},
],
});
return () => chart.destroy();
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
return (
<div className="grow flex flex-col justify-center">
<div>
<canvas ref={canvas} width={width} height={height}></canvas>
</div>
<div className="px-5 py-4">
<ul ref={legend} className="flex flex-wrap justify-center -m-1" />
</div>
</div>
);
}
export default PieChart;