import * as i0 from "@angular/core";
/**
 * Handles mouse wheel events for zoom and pan operations.
 */
export declare class WheelHandlerService {
    private apiService;
    handleWheel(event: WheelEvent): void;
    private handleZoom;
    private handleHorizontalPan;
    private handleVerticalPan;
    static ɵfac: i0.ɵɵFactoryDeclaration<WheelHandlerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<WheelHandlerService>;
}