zz-chart/lib/chart/index.js

Alauda Chart components by Alauda Frontend Team

import { DEFAULT_INTERACTIONS } from '../utils/constant.js';
// import { DEFAULT_INTERACTIONS } from '../utils/constant.js';
import { generateName, getChartSize, getElement, resizeObserver, } from '../utils/index.js';
import { View } from './view.js';
export class Chart extends View {
    constructor(props) {
        const { container, width, autoFit = true, height, padding, defaultInteractions = DEFAULT_INTERACTIONS, options, data, } = props;
        const chartEle = getElement(container);
        const header = document.createElement('div');
        header.className = generateName('header');
        chartEle.append(header);
        const ele = document.createElement('div');
        chartEle.append(ele);
        if (autoFit) {
            chartEle.style.width = '100%';
            chartEle.style.height = '100%';
            chartEle.style.justifyContent = 'space-between';
        }
        ele.style.position = 'relative';
        ele.style.height = '100%';
        // ele.style.display = 'flex';
        // ele.style.flexDirection = 'column';
        chartEle.style.flexDirection = 'column';
        chartEle.style.display = 'flex';
        ele.style.flex = '1';
        if (width) {
            chartEle.style.width = `${width}px`;
        }
        if (height) {
            chartEle.style.height = `${height}px`;
        }
        const size = getChartSize(ele, width, height);
        const opts = {
            chartEle,
            ele,
            ...size,
            padding,
            data,
            options,
            defaultInteractions,
            chartOption: props,
        };
        super(opts);
        /**
         * 改变图表大小，重新渲染 （由 bbox内部处理）
         * @param width
         * @param height
         * @returns Chart
         */
        this.changeSize = ({ width, height }) => {
            if (this.width === width && this.height === height) {
                return;
            }
            const size = getChartSize(this.ele, width, height);
            this.width = size.width;
            this.height = size.height;
            // 重新渲染
            this.render(size);
            return this;
        };
        this.chartEle = chartEle;
        this.ele = ele;
        this.width = size.width;
        this.height = size.height;
        this.bindAutoFit();
    }
    /**
     * 绑定自动伸缩视图
     */
    bindAutoFit() {
        this.sizeObserver = resizeObserver(this.chartEle, this.changeSize);
    }
    unbindAutoFit() {
        this.sizeObserver.disconnect();
    }
    /**
     * 销毁图表
     */
    destroy() {
        super.destroy();
        this.unbindAutoFit();
        this.ele = null;
    }
}
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