/
Plot.ts
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/
Plot.ts
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import { BBox } from '@antv/g';
import { assign, deepMix, each, findIndex } from '@antv/util';
import BaseConfig from '../interface/config';
import { RecursivePartial } from '../interface/types';
import StateManager from '../util/stateManager';
import CanvasController from './controller/canvas';
import ThemeController from './controller/theme';
import Layer from './Layer';
import ViewLayer from './ViewLayer';
/**
* 基础图形
*/
export default abstract class BasePlot<T extends BaseConfig = BaseConfig> {
public destroyed: boolean = false;
protected initialProps: T;
protected originalProps: T;
protected layers: Array<Layer<any>> = [];
private container: HTMLElement;
private canvasController: CanvasController;
private themeController: ThemeController;
constructor(container: string | HTMLElement, config: T) {
this.initialProps = config;
this.originalProps = deepMix({}, config);
this.container = typeof container === 'string' ? document.getElementById(container) : container;
// themeController 在 Plot 级别
this.themeController = new ThemeController();
// canvasController 在 Plot 级别
this.canvasController = new CanvasController({
container: this.container,
themeController: this.themeController,
plot: this,
});
this.init();
}
/**
* 更新图形配置
*/
public updateConfig(config: RecursivePartial<T>) {
this.updateConfigBase(config);
each(this.layers, (layer) => {
layer.updateConfig(config);
});
}
/**
* 更新数据
*
* @param data
*/
public changeData(data: any[]) {
each(this.layers, (layer) => {
layer.changeData(data);
});
}
/**
* 重新绘制图形
*/
public repaint(): void {
this.canvasController.canvas.draw();
}
/**
* 完整生命周期渲染
*/
public render(): void {
each(this.layers, (layer) => {
layer.render();
});
}
/**
* TODO: 可以去掉 getProps 方法
*/
public getProps(): T {
return this.initialProps;
}
/**
* 获取图形下的图层 Layer,默认第一个 Layer
*
* @param idx {number}
*/
public getLayer(idx: number = 0) {
return this.layers[idx];
}
/**
* 获取顶层g2的plot实例
*/
public getPlot() {
return this.getLayer(0); // layers[0] 即顶层实例
}
/**
* 绑定一个外部的stateManager
* 先直接传递给各个子 Layer
*
* @param stateManager
* @param cfg
*/
public bindStateManager(stateManager: StateManager, cfg: any) {
each(this.layers, (layer) => {
if (layer instanceof ViewLayer) {
layer.bindStateManager(stateManager, cfg);
}
});
}
/**
* 响应状态量更新的快捷方法
*
* @param condition
* @param style
*/
public setActive(condition: any, style: any) {
each(this.layers, (layer) => {
if (layer instanceof ViewLayer) {
layer.setActive(condition, style);
}
});
}
public setSelected(condition: any, style: any) {
each(this.layers, (layer) => {
if (layer instanceof ViewLayer) {
layer.setSelected(condition, style);
}
});
}
public setDisable(condition: any, style: any) {
each(this.layers, (layer) => {
if (layer instanceof ViewLayer) {
layer.setDisable(condition, style);
}
});
}
public setNormal(condition: any) {
each(this.layers, (layer) => {
if (layer instanceof ViewLayer) {
layer.setNormal(condition);
}
});
}
/**
* 销毁图形
*
* @memberof BasePlot
*/
public destroy(): void {
each(this.layers, (layer) => {
layer.destroy();
});
this.canvasController.destroy();
const canvasDOM = this.canvasController.canvas.get('canvasDOM');
canvasDOM.parentNode.removeChild(canvasDOM);
this.layers = [];
this.destroyed = true;
}
protected updateConfigBase(config: RecursivePartial<T>) {
// @ts-ignore
this.initialProps = deepMix({}, this.initialProps, config);
this.originalProps = deepMix({}, this.originalProps, deepMix({}, config));
this.canvasController.updateCanvasSize();
}
/**
* 方便子图形获取 CanvasController
*/
protected getCanvasController(): CanvasController {
return this.canvasController;
}
/**
* 方便子图形获取 ThemeController
*/
protected getThemeController(): ThemeController {
return this.themeController;
}
/**
* 获取整个 Plot 的 Range
*/
protected getPlotRange(): BBox {
const { width, height } = this.canvasController.getCanvasSize();
return new BBox(0, 0, width, height);
}
/**
* 添加一个 Layer
* @param layer
*/
protected addLayer(layer: Layer<any>): void {
this.layers.push(layer);
}
/**
* 删除一个 Layer
* @param layer
*/
protected removeLayer(layer: Layer<any>): void {
const idx = findIndex(this.layers, (item) => item === layer);
if (idx >= 0) {
this.layers.splice(idx, 1);
}
}
/**
* 配置 Layers
*
* @protected
* @abstract
* @memberof BasePlot
*/
protected abstract init(): void;
}