import { ElementRef, EventEmitter, OnDestroy, SimpleChanges } from '@angular/core';
import { DateTimePickerFormatProvider } from './date-time-picker-format-provider.service';
import * as i0 from "@angular/core";
export declare type TimeUnit = 'hours' | 'minutes' | 'seconds';
/**
 * The controls (calendar view, year & time inputs) powering the `DateTimePicker` component. Can be used as a stand-alone component.
 */
export declare class DateTimePickerControls implements OnDestroy {
    private defaultFormatProvider;
    private static momentLocales;
    /**
     * The date/time value as a unix timestamp (in seconds)
     */
    timestamp: number;
    /**
     * Set to overwrite texts and date formatting in the modal.
     */
    formatProvider: DateTimePickerFormatProvider;
    /**
     * The minimum date allowable. E.g. `new Date(2015, 2, 12)`
     */
    min: Date;
    /**
     * The maximum date allowable. E.g. `new Date(2031, 1, 30)`
     */
    max: Date;
    /**
     * If true, the year may be selected from a Select control
     */
    set selectYear(val: any);
    get selectYear(): any;
    /**
     * Set to `true` to disable the input field and not show the date picker on click.
     */
    set disabled(val: any);
    get disabled(): any;
    /**
     * Set to `false` to omit the time picker part of the component. Defaults to `true`
     */
    set displayTime(val: any);
    get displayTime(): any;
    /**
     * Set to `false` to omit the seconds of the time picker part. Defaults to `true`
     */
    set displaySeconds(val: any);
    get displaySeconds(): any;
    /**
     * When `true`, the controls use the "compact" (small screen) styling for all screen sizes. Defaults to `false`
     */
    set compact(val: any);
    get compact(): any;
    /**
     * Emits the unix timestamp of the current value on changes.
     */
    change: EventEmitter<number>;
    calendarContainer: ElementRef;
    dateOrder: 'dmy' | 'ymd' | 'mdy';
    years: number[];
    _selectYear: boolean;
    _disabled: boolean;
    _displayTime: boolean;
    _displaySeconds: boolean;
    _compact: boolean;
    /** @internal */
    value: any;
    /** @internal */
    time: any;
    /**
     * cal is an instance of a Rome calendar, for the API see https://github.com/bevacqua/rome#rome-api
     */
    private cal;
    private subscription;
    constructor(defaultFormatProvider: DateTimePickerFormatProvider);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Initialize the Rome widget instance.
     */
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    getRomeConfig(): any;
    setupProviderChangeHook(): void;
    /**
     * Update the this.value in accordance with the input of one of the
     * time fields (h, m, s).
     */
    updateTime(unit: TimeUnit, value: number): void;
    /**
     * Handler for the incrementing the time values when up or down arrows are pressed.
     */
    timeKeyHandler(unit: TimeUnit, e: KeyboardEvent): void;
    incrementTime(unit: TimeUnit): void;
    decrementTime(unit: TimeUnit): void;
    formatWith(formatString: string): string;
    getUnixTimestamp(): number;
    setYear(year: number): void;
    private updateByUnits;
    /**
     * Create a momentjs locale from the (possibly localized) strings.
     * @internal
     */
    private getMomentLocale;
    private determineDateOrder;
    /**
     * Increment or decrement the value and update the time object.
     */
    private addToTime;
    /**
     * Update the time object based on the value of this.value.
     */
    private updateTimeObject;
    /**
     * Update the Rome calendar widget with the current value.
     */
    private updateCalendar;
    static ɵfac: i0.ɵɵFactoryDeclaration<DateTimePickerControls, [{ optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DateTimePickerControls, "gtx-date-time-picker-controls", never, { "timestamp": "timestamp"; "formatProvider": "formatProvider"; "min": "min"; "max": "max"; "selectYear": "selectYear"; "disabled": "disabled"; "displayTime": "displayTime"; "displaySeconds": "displaySeconds"; "compact": "compact"; }, { "change": "change"; }, never, never>;
}