index.js
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import React, { PureComponent } from 'react';
import G2 from 'g2';
import Debounce from 'lodash-decorators/debounce';
import Bind from 'lodash-decorators/bind';
import equal from '../equal';
class Bar extends PureComponent {
componentDidMount() {
this.renderChart(this.props.data);
window.addEventListener('resize', this.resize);
}
componentWillReceiveProps(nextProps) {
if (!equal(this.props, nextProps)) {
this.renderChart(nextProps.data);
}
}
componentWillUnmount() {
window.removeEventListener('resize', this.resize);
if (this.chart) {
this.chart.destroy();
}
this.resize.cancel();
}
@Bind()
@Debounce(200)
resize() {
if (!this.node) {
return;
}
this.renderChart([]);
}
handleRef = (n) => {
this.node = n;
};
renderChart(data) {
if (this.node.offsetWidth === 0) {
return;
}
const {
xUnit = '', yUnit = '', height, style,
} = this.props;
const textMyStyle = {};
if (style !== undefined) {
if (style.color !== undefined) {
textMyStyle.fill = style.color;
}
}
if (!data || (data && data.length < 1)) return;
// clean
if (this.chart) {
this.chart.destroy();
}
this.node.innerHTML = '';
const chart = new G2.Chart({
container: this.node,
autoFit: true, /* 图标自适应 */
height,
padding: 'auto',
});
chart.axis('x', {
label: {
formatter: (val) => {
return `${val}${xUnit}`;
},
textStyle: textMyStyle,
},
});
chart.axis('y', {
label: {
formatter: (val) => {
return `${val}${yUnit}`;
},
textStyle: textMyStyle,
},
});
chart.data(data);
chart.tooltip({
showTitle: false,
});
chart.coord().transpose();
chart.interval().position('y*x').tooltip('y*x', (name, value) => {
return {
name: `${name}${xUnit}`,
value: `${value}${yUnit}`,
};
});
chart.render();
this.chart = chart;
}
render() {
return (
<div ref={this.handleRef} />
);
}
}
export default Bar;