import { OnInit, EventEmitter } from '@angular/core';
import { SortDirection, SortTuple } from './../../shared/types/Values/Sortoptions';
import * as i0 from "@angular/core";
export declare class TableviewSortHeaderComponent implements OnInit {
    readonly name = "SortHeaderComponent";
    readonly faSortUp: import("@fortawesome/fontawesome-common-types").IconDefinition;
    readonly faSortDown: import("@fortawesome/fontawesome-common-types").IconDefinition;
    readonly faSort: import("@fortawesome/fontawesome-common-types").IconDefinition;
    classes: string;
    isNullOrUndefined(subject: any): subject is null | undefined;
    get active(): boolean;
    label: string;
    sortKey: string;
    /**
     * Backing field for activeSortKey getter/setter
     */
    private _activeSortKey;
    get activeSortKey(): string;
    set activeSortKey(activeSortKey: string);
    activeSortKeyChange: EventEmitter<string>;
    /**
     * Backing field for the current sort direction of the application.
     */
    private _activeSortDirection;
    get activeSortDirection(): SortDirection;
    set activeSortDirection(activeSortDirection: SortDirection);
    activeSortDirectionChange: EventEmitter<string>;
    /**
     * @deprecated Change bindings like `(onSortChange)="..."` to `(sortChange)="..."`
     */
    onSortChange: EventEmitter<SortTuple>;
    sortChange: EventEmitter<SortTuple>;
    constructor();
    ngOnInit(): void;
    toggleSort(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TableviewSortHeaderComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TableviewSortHeaderComponent, "p-tableview-sort-header", never, { "label": "label"; "sortKey": "sortKey"; "activeSortKey": "activeSortKey"; "activeSortDirection": "activeSortDirection"; }, { "activeSortKeyChange": "activeSortKeyChange"; "activeSortDirectionChange": "activeSortDirectionChange"; "onSortChange": "onSortChange"; "sortChange": "sortChange"; }, never, never, false>;
}