import { IDataSetConditionCalculator } from '@shujujiang/core/widget/threshold';
import { IWidgetModel } from '@shujujiang/core/widget/widgetmodel';
import { ECWidget } from '../../echarts/ecwidget';
export declare class TreeMapChart extends ECWidget {
    composeOption(option: IWidgetModel): any;
    protected onPointClicked(event: any): void;
    protected invokeSelectPoints(calculator: IDataSetConditionCalculator): boolean;
    protected invokeClearSelectedPoints(): void;
    protected _wrapPointEvent(event: any): {
        data: {
            columns: any[];
            values: any[];
        };
        event: any;
    };
    protected _getIndexKeyFromPointEvent(event: any): number | string;
    private _eachLeafNode;
}