import Konva from 'konva';
import type { CoordinateTransform, LiveEffect, ViewportBounds } from 'mudlet-map-renderer';
import type { SceneHandle } from '../scene';
/** Draws waypoints + in-progress line while the custom line tool is active. */
export declare class CustomLinePreviewEffect implements LiveEffect {
    private readonly sceneRef;
    private group?;
    private layer?;
    private unsubscribe?;
    private currentScale;
    constructor(sceneRef: {
        current: SceneHandle | null;
    });
    attach(layer: Konva.Layer): void;
    updateViewport(_bounds: ViewportBounds, scale: number, _transform: CoordinateTransform): void;
    destroy(): void;
    private sync;
    private resolveTargetRoom;
}