import { DiagramNode } from '@likec4/core/types';
import { Compound, ParallelRect, Rect, Spacing, Step } from './_types';
export type NormalizedSpacing = {
    left: number;
    right: number;
    top: number;
    bottom: number;
};
export declare function normalizeSpacing(padding?: Spacing | number): NormalizedSpacing;
export declare function rectFromSteps(steps: Array<Step>): Rect;
/**
 * From steps find boxes that must be marked as parallel on the layout
 */
export declare function findParallelRects(steps: Array<Step>): Array<ParallelRect>;
/**
 * Builds a tree of compounds from actors and nodes.
 * @param actors the actors in the sequence view
 * @param nodes the nodes in likec4 diagram
 * @returns an array of compounds where each compound is a node in the sequence view
 * that is an ancestor of one of the actors
 */
export declare function buildCompounds(actors: ReadonlyArray<DiagramNode>, nodes: ReadonlyArray<DiagramNode>): Array<Compound>;