import type { BoxSize, ScrollPosition, TrackGap } from './types';
export declare function getGapSize(trackGap: number | TrackGap | ((showBarX: boolean, showBarY: boolean) => TrackGap), showBarX: boolean, showBarY: boolean): [startX: number, gapX: number, startY: number, gapY: number];
export declare function handleExtractSize(target: HTMLElement): {
    CW: number;
    SW: number;
    CH: number;
    SH: number;
    PT: number;
    PR: number;
    PB: number;
    PL: number;
};
export declare function isEnableStyle(disabled?: boolean): 'hidden' | 'auto';
export declare function computeRatio(scrollSize: number, clientSize: number, gapSize: number, minThumbSize?: number): {
    thumbSize: number;
    ratio: number;
};
export declare function scrollTo(element: HTMLElement | null | undefined, position: number, horizontal?: boolean): void;
export declare function updateScrollElementStyle(boxSize: BoxSize, position: ScrollPosition, horizontalElement: HTMLElement | null | undefined, verticalElement: HTMLElement | null | undefined, gapX: number, gapY: number, minThumbSize?: number): void;