import { IResizeEvent, IResizeInfo } from './types';
/**
 * @ignore
 */
export declare const HEADER_DATA_KEY = "identifier";
/**
 * Determines if the style has reached it's minimum width.
 *
 * @export
 * @param entry The verified entry.
 * @returns If the entry has reached it's minimum width.
 * @internal
 * @ignore
 */
export declare function isMinWidth<T>(entry?: IResizeInfo<T>): boolean;
/**
 * Detects if the resize direction has changed compared to it's previous state.
 *
 * @export
 * @param state The resize state that needs to be checked.
 * @returns If the resize direction has changed.
 * @internal
 * @ignore
 */
export declare function isDirectionChanged<T>(state: IResizeEvent<T>): boolean;
/**
 * Clamps the offset value in a safe range.
 *
 * @export
 * @param entry The entry that needs to be clamped.
 * @param offset The current `offset`.
 * @returns The clamped `offset` for the provided entry
 * @internal
 * @ignore
 */
export declare function clampOffset<T>(entry: IResizeInfo<T> | undefined, offset: number): number;
export declare function clampColumnOffset(width: number, minWidth: number, offset: number): number;
/**
 * Filters events if no dragging actually occured.
 *
 * @param state The current resize state.
 * @returns If the current resize event should be filtered.
 * @internal
 * @ignore
 */
export declare const resizeFilter: <T>(state: IResizeEvent<T>) => boolean;
/**
 *  Returns the query selector for cell elements.
 *
 * @param value The data value.
 * @returns The selector for the requested value.
 * @internal
 * @ignore
 */
export declare const cellSelector: (value: string) => string;
/**
 *  Scales the width value accordingly.
 *
 * @param value The value that needs to be formatted as a percentage.
 * @returns The formatted value
 * @internal
 * @ignore
 */
export declare const toPercentageStyle: (value: number) => string;
/**
 * Searches for the header index associated to the requested data property.
 *
 * @param headers The header list.
 * @param value The header identifier value.
 * @internal
 * @ignore
 */
export declare const findHeaderIndexFor: (headers: HTMLDivElement[], value: string) => number;
/**
 * Gets the data property value for the current element.
 *
 * @param element The element on which to search for the identifier.
 * @returns The identifier value.
 * @internal
 * @ignore
 */
export declare const getProperty: (element: HTMLDivElement) => string;
/**
 * @param element The element which should be checked if it's sticky
 */
export declare const isSticky: (element?: HTMLDivElement) => boolean | undefined;
/**
 * @param element Returns the exact element width
 */
export declare const elementWidth: (selector: string, root?: HTMLElement) => number;