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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { AxisScale } from 'd3-axis';
import React from 'react';
import { BarUnitData } from '../components/segment-timeline/segment-timeline';
import { BarUnit } from './bar-unit';
import { HoveredBarInfo } from './stacked-bar-chart';
interface BarGroupProps {
dataToRender: BarUnitData[];
changeActiveDatasource: (dataSource: string) => void;
formatTick: (e: number) => string;
xScale: AxisScale<Date>;
yScale: AxisScale<number>;
barWidth: number;
onHoverBar?: (e: any) => void;
offHoverBar?: () => void;
hoverOn?: HoveredBarInfo | null;
}
export class BarGroup extends React.Component<BarGroupProps> {
shouldComponentUpdate(nextProps: BarGroupProps): boolean {
return nextProps.hoverOn === this.props.hoverOn;
}
render(): JSX.Element[] | null {
const {
dataToRender,
changeActiveDatasource,
xScale,
yScale,
onHoverBar,
barWidth,
} = this.props;
if (dataToRender === undefined) return null;
return dataToRender.map((entry: BarUnitData, i: number) => {
const y0 = yScale(entry.y0 || 0) || 0;
const x = xScale(new Date(entry.x));
const y = yScale((entry.y0 || 0) + entry.y) || 0;
const height = y0 - y;
const barInfo: HoveredBarInfo = {
xCoordinate: x,
yCoordinate: y,
height,
datasource: entry.datasource,
xValue: entry.x,
yValue: entry.y,
};
return (
<BarUnit
key={i}
x={x}
y={y}
width={barWidth}
height={height}
style={{ fill: entry.color }}
onClick={() => changeActiveDatasource(entry.datasource)}
onHover={() => onHoverBar && onHoverBar(barInfo)}
/>
);
});
}
}
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