import { FormControl } from '@angular/forms';
import { HeaderColumn } from "../models/header-column";
import { AbstractHeaderService } from "../abstract-header-service";
import * as i0 from "@angular/core";
export declare abstract class AbstractHeaderModeComponent {
    overflowWidth: string;
    approval: boolean;
    indeterminate: boolean;
    approvalFormControl: FormControl<boolean>;
    typeApproval: string;
    headerService: AbstractHeaderService;
    constructor();
    getMinWidth(): string;
    /**
     * Advances a header through the supported sort directions: none, ascending, descending, none.
     *
     * @returns `true` when a header was supplied and its direction was advanced.
     */
    protected advanceSortDirection(header: HeaderColumn | null | undefined): header is HeaderColumn;
    sortingPriority(header: HeaderColumn | null | undefined): number | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<AbstractHeaderModeComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<AbstractHeaderModeComponent, "ncc-abstract-header-mode", never, { "overflowWidth": { "alias": "overflowWidth"; "required": false; }; "approval": { "alias": "approval"; "required": false; }; "indeterminate": { "alias": "indeterminate"; "required": false; }; "approvalFormControl": { "alias": "approvalFormControl"; "required": false; }; "typeApproval": { "alias": "typeApproval"; "required": false; }; "headerService": { "alias": "headerService"; "required": false; }; }, {}, never, never, false, never>;
}