import { Port, PortPlacement, AbsolutePortPlacement, PortPosition, AbsolutePositionUnit } from '../../../types/core';
/**
 * Type guard to check if placement is absolute positioning
 */
export declare const isAbsolutePlacement: (placement: PortPlacement | AbsolutePortPlacement | undefined) => placement is AbsolutePortPlacement;
/**
 * Get side from placement, with fallback for absolute placements.
 * Note: For absolute placements, returns the fallback since direction is computed dynamically.
 */
export declare const getPlacementSide: (placement: PortPlacement | AbsolutePortPlacement, fallback?: PortPosition) => PortPosition;
/**
 * Get side from port's placement or position field.
 * Note: For absolute placements, returns port.position as fallback since direction is computed dynamically.
 */
export declare const getPortSide: (port: Port) => PortPosition;
/**
 * Safely get align value from placement (returns undefined for absolute placements)
 */
export declare const getPlacementAlign: (placement: PortPlacement | AbsolutePortPlacement | undefined) => number | undefined;
/**
 * Safely get inset value from placement (returns false for absolute placements)
 */
export declare const getPlacementInset: (placement: PortPlacement | AbsolutePortPlacement | undefined) => boolean;
/**
 * Safely get segment value from placement (returns undefined for absolute placements)
 */
export declare const getPlacementSegment: (placement: PortPlacement | AbsolutePortPlacement | undefined) => string | undefined;
/**
 * Get the unit from an absolute placement (defaults to "px")
 */
export declare const getAbsoluteUnit: (placement: AbsolutePortPlacement) => AbsolutePositionUnit;
/**
 * Check if absolute placement uses percentage units
 */
export declare const isPercentPlacement: (placement: AbsolutePortPlacement) => boolean;
/**
 * Create an absolute placement with pixel units
 */
export declare const absolutePx: (x: number, y: number) => AbsolutePortPlacement;
/**
 * Create an absolute placement with percentage units
 */
export declare const absolutePercent: (x: number, y: number) => AbsolutePortPlacement;
/**
 * Normalize placement configuration to a consistent form.
 * Handles string positions, PortPlacement objects, and AbsolutePortPlacement objects.
 *
 * @param position - Position string, PortPlacement, or AbsolutePortPlacement (optional)
 * @returns Normalized PortPlacement or AbsolutePortPlacement (defaults to { side: "right" })
 */
export declare const normalizePlacement: (position?: PortPosition | PortPlacement | AbsolutePortPlacement) => PortPlacement | AbsolutePortPlacement;