import { type DestroyRef, type EnvironmentInjector } from '@angular/core';
import { type DfDragDropDistance } from '../../directives';
import { type DfDataNode, type DfPoint } from '../../ng-draw-flow.interfaces';
import { type CoordinatesService } from '../../services/coordinates.service';
import { type DfNodeContentRenderer } from './node-content.renderer';
export interface DfNodeConnectorsControllerOptions {
    readonly coordinatesService: CoordinatesService;
    readonly destroyRef: DestroyRef;
    readonly environmentInjector: EnvironmentInjector;
    readonly getCenteredPosition: (node: DfDataNode) => DfPoint;
    readonly getNode: () => DfDataNode;
    readonly getNodeContentRenderer: () => DfNodeContentRenderer;
    readonly getZoom: () => number;
    readonly onConnectorDeleted: (connectorId: string) => void;
}
export declare class NodeConnectorsController {
    private readonly options;
    private readonly coordinateKeys;
    private previousInputs;
    private previousOutputs;
    private connectorUpdatesSubscription;
    constructor(options: DfNodeConnectorsControllerOptions);
    updateCoordinates(): void;
    updateCoordinatesAt(centeredCoordinates: DfPoint, nodeId: string): void;
    recalculatePositions(distance: DfDragDropDistance, zoom: number): void;
    translateCoordinates(distance: DfDragDropDistance): void;
    watch(): void;
    disconnect(): void;
    applyOutputsConnectionLabel(): void;
    private recalculateConnectorPositionFromLast;
    private updateConnectorCoordinates;
    private calculateConnectorPosition;
    private collectConnectorUpdateSources;
    private addContentRendererUpdates;
    private addInputsUpdates;
    private addOutputsUpdates;
    private observeConnectors;
    private handleRemovedInputs;
    private handleRemovedOutputs;
    private removeCoordinates;
}