import { SideType } from '@primereact/types/headless/positioner';
export declare function isCssAnchorSupported(): boolean;
export interface Rect {
    x: number;
    y: number;
    width: number;
    height: number;
}
export interface ComputedCoords {
    x: number;
    y: number;
}
export declare function clamp(value: number, min: number, max: number): number;
export declare function getBoundaryRect(boundary?: HTMLElement | null): Rect;
export declare function getLayoutRect(element: HTMLElement, rect: DOMRect): DOMRect | {
    left: number;
    top: number;
    width: number;
    height: number;
};
export declare function computeTransformOrigin(side: SideType, arrowX: number, arrowY: number, contentWidth: number, contentHeight: number, arrowSize: number, hasArrow: boolean): string;