import { OnDestroy, ElementRef, SimpleChanges, OnChanges } from '@angular/core';
import * as i0 from "@angular/core";
export declare class FlipTextComponent implements OnDestroy, OnChanges {
    private elementRef;
    /** 展示的文本内容 */
    ncText: string;
    /** 每个字符动画持续时间 */
    ncDuration: number;
    /** 每个字符之间的延迟 */
    ncDelayMultiple: number;
    /** 每个字符之间的间距 */
    ncGap: number;
    /** 延迟 */
    ncDelay: number;
    /** 是否在视图可见时才开始动画 */
    private _startOnView;
    set ncStartOnView(val: boolean | string);
    get ncStartOnView(): boolean;
    /** 是否只执行一次动画 */
    private _once;
    set ncOnce(val: boolean | string);
    get ncOnce(): boolean;
    characters: {
        char: string;
        state: string;
        delay: number;
    }[];
    private observer;
    private timeout;
    constructor(elementRef: ElementRef);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private start;
    private clear;
    private setupIntersectionObserver;
    private processText;
    private startAnimation;
    private endAnimation;
    static ɵfac: i0.ɵɵFactoryDeclaration<FlipTextComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<FlipTextComponent, "nc-flip-text", never, { "ncText": "ncText"; "ncDuration": "ncDuration"; "ncDelayMultiple": "ncDelayMultiple"; "ncGap": "ncGap"; "ncDelay": "ncDelay"; "ncStartOnView": "ncStartOnView"; "ncOnce": "ncOnce"; }, {}, never, never>;
}