/** Touch movement before a press is read as a swipe or a scroll (carousel.tsx, useSwipeDismiss.ts). */
export declare const LOCK_DISTANCE = 10;
/** Mouse movement before a press becomes a drag. */
export declare const MOUSE_DRAG_DISTANCE = 4;
/** Hold before a touch picks something up (VirtualList's `longPressDelay`). */
export declare const LONG_PRESS_MS = 400;
/** A touch this soon after a scroll is stopping momentum, not picking something up. */
export declare const RECENT_SCROLL_MS = 150;
/** Share of the width a swipe must travel to page (carousel.tsx). */
export declare const COMMIT_RATIO = 0.2;
/** px/ms a shorter flick must reach to page anyway (useSwipeDismiss.ts). */
export declare const COMMIT_VELOCITY = 0.5;
/** How far back the flick velocity is measured. */
export declare const VELOCITY_WINDOW_MS = 100;
/** Distance from a scroller's edge where a drag starts scrolling it (useRowDrag.ts). */
export declare const EDGE_ZONE = 48;
/** px per frame at the very edge. */
export declare const EDGE_SPEED = 18;
/** How long after a gesture the click it ends in is swallowed (useRowDrag.ts). */
export declare const CLICK_SUPPRESS_MS = 350;
/** `1` to page forwards, `-1` back, `0` to return. A swipe to the left reveals the next period. */
export declare function pageStep(dx: number, width: number, velocity: number): -1 | 0 | 1;
/** Scroll speed for a pointer at `y` in a scroller spanning `top` to `bottom`: negative scrolls up. */
export declare function edgeSpeed(y: number, top: number, bottom: number): number;
export declare function snap(minutes: number, step: number): number;
export declare function clamp(value: number, min: number, max: number): number;
export interface VelocitySample {
    time: number;
    x: number;
}
/** px/ms over the samples of the last `VELOCITY_WINDOW_MS`. */
export declare function velocityOf(samples: readonly VelocitySample[], now: number): number;