import { AfterViewInit, InjectionToken, OnDestroy, OnInit } from '@angular/core';
import { FormControl } from '@angular/forms';
import { DateRange, YearQuarter } from '../../models/form/item/date/index';
import { BaseFormItemControl } from './base-form-item-control.component';
export declare const MTNA_WF_DEFAULT_YEAR_RANGE: InjectionToken<MtnaWfDefaultYearRange>;
export interface MtnaWfDefaultYearRange {
    numPastYears: number;
    numFutureYears: number;
}
export declare class MtnaWfYearQuarterItemComponent extends BaseFormItemControl<any> implements AfterViewInit, OnDestroy, OnInit {
    yearQuarterItemClass: boolean;
    rangeLimits: DateRange<YearQuarter>;
    readonly: boolean;
    _quarterControl: FormControl | undefined;
    _yearControl: FormControl | undefined;
    _yearSelection: number[];
    private destroyObs;
    private defaultYearRange;
    constructor(defaultYearRange?: MtnaWfDefaultYearRange);
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    ngOnInit(): void;
    /**
     * Sets the quarter value to `null` if the year & quarter is out of bounds of the range limits.
     * Otherwise, returns original value
     *
     * @param value `[number, number]` The selected [year, quarter] value
     * @returns `[number, number]` The original [year, quarter] value OR [year, null]
     */
    private withinRangeLimits;
    private toggleReadOnly;
}
export declare class MtnaWfYearQuarterItemModule {
}