import { ComponentFactory, Graph, Layout, ModelKind, Visualization } from '@patternfly/react-topology';
import { IVisualizationNode } from '../../../models/visualization/base-visual-entity';
import { CanvasEdge, CanvasNode, CanvasNodesAndEdges } from './canvas.models';
export declare class CanvasService {
    static nodes: CanvasNode[];
    static edges: CanvasEdge[];
    private static visitedNodes;
    static createController(): Visualization;
    static baselineComponentFactory(kind: ModelKind, type: string): ReturnType<ComponentFactory>;
    static baselineLayoutFactory(type: string, graph: Graph): Layout | undefined;
    static getFlowDiagram(vizNode: IVisualizationNode): CanvasNodesAndEdges;
    /** Method for iterating over all the IVisualizationNode and its children using a depth-first algorithm */
    private static appendNodesAndEdges;
    private static getCanvasNode;
    private static getEdgesFromVizNode;
    private static getContainer;
    private static getNode;
    private static getEdge;
}