import type { VerticalAlignment } from "../../types/alignment";
export declare function mapPageAlignment(alignment: VerticalAlignment): string;
export declare function clamp(value: number, min: number, max: number): number;
/**
 * Advance one page when the drag passed this fraction of a page's width,
 * matching the iOS SDK carousel. A shorter drag snaps back to the page the
 * gesture started on.
 */
export declare const PAGE_ADVANCE_THRESHOLD = 0.2;
/**
 * Decides which page a swipe settles on when the pointer is released.
 *
 * Distance-based (not velocity-based), mirroring the iOS SDK's `handleDragEnd`:
 * a drag past `PAGE_ADVANCE_THRESHOLD` of a page's width advances exactly one
 * page in the swipe direction regardless of speed; a shorter drag stays put.
 * Non-loop carousels clamp at their first and last page; loop carousels may
 * return an index just outside `[0, pageCount)` so the caller can animate into
 * a clone before normalizing.
 *
 * @param startPage    Page the gesture started on.
 * @param dragDistance Signed change in slider translation (negative = finger
 *                     moved left / next page).
 * @param pageWidth    Width of a single page in px.
 * @param pageCount    Total number of real pages.
 * @param loop         Whether the carousel loops.
 */
export declare function getSwipeTargetPage({ startPage, dragDistance, pageWidth, pageCount, loop, advanceThreshold, }: {
    startPage: number;
    dragDistance: number;
    pageWidth: number;
    pageCount: number;
    loop: boolean;
    advanceThreshold?: number;
}): number;
export declare function getTranslation(element: HTMLElement | null): number;