import { IWidgetActionEvent } from '@shujujiang/core/action/interfaces';
import { IWidgetModel } from '@shujujiang/core/widget/widgetmodel';
import { IEmitter } from 'neurons-emitter';
import { ECWidget } from '../../echarts/ecwidget';
export declare class BackgroundImageWidget extends ECWidget {
    applyAction: IEmitter<IWidgetActionEvent>;
    private _listeners;
    container(container: HTMLElement): void;
    createApi(): {
        [key: string]: any;
    };
    protected resetChart(): void;
    protected composeOption(option: IWidgetModel): any | PromiseLike<any>;
    onDestroy(): void;
}