import { CascadeVerticalItem } from './cascade-vertical-item';
import { ElementRef, EventEmitter, OnInit } from '@angular/core';
export declare class NecCascadeComponent implements OnInit {
    private elementRef;
    cascadeButtonDefaultText: string;
    cascadeHorizontalItemWidth: number;
    cascadeVerticalHeight: number;
    maxColumnNum: number;
    rootCascadeItems: CascadeVerticalItem[];
    cascadeVerticalChosenItem: EventEmitter<CascadeVerticalItem>;
    cascadeButtonClicked: boolean;
    chosenVerticalItem: CascadeVerticalItem;
    cascadeItem: CascadeVerticalItem[][];
    showCascadeItems: boolean[];
    constructor(elementRef: ElementRef);
    ngOnInit(): void;
    cascadeButtonClick(): void;
    /**
     * 获得横向偏移长度
     */
    getHorizontalPosition(num: number): string;
    /**
     * 纵向最高高度
     */
    getCascadeVerticalItemHeight(): string;
    /**
     * 获得横向列宽度
     */
    getCascadeHorizontalItemWidth(): string;
    cascadeVerticalItemClick(currentHorizontalItemCount: number, cascadeVerticalItem: CascadeVerticalItem): void;
    /**
     * 处理鼠标点击组件外元素事件
     * event 事件
     */
    offClickHandler(event: any): void;
}