import { LitElement } from 'lit';
import { default as OpenSeadragon } from 'openseadragon';
import { ViewerSettings } from './viewer-settings';
import { MeasurementTool } from './measurement-tool';
import { PhotogrammetryViewerSettings } from './public-settings';
export declare class ViewerElement2D extends LitElement {
    src2D: string;
    parentElement: HTMLDivElement;
    hotspotOverlay: HTMLDivElement;
    measurementTool: MeasurementTool;
    viewSettings: PhotogrammetryViewerSettings;
    private _imageFiles;
    private _currentImageIdx;
    private _currentSyncRotationAngle;
    private _imageCenter;
    private _deltaX;
    private _deltaY;
    private _minZoomLevel;
    private _lastDoublePressPointer;
    private _lastDoublePressTimeStamp;
    private _isDown;
    private _viewer;
    private _viewerHomeBounds;
    get viewer(): OpenSeadragon.Viewer | null;
    render(): import('lit-html').TemplateResult<1>;
    firstUpdated(): void;
    connectWithSettings(viewerSettings: ViewerSettings): void;
    resize(height: number, width: number, transformString: string): void;
    setImageFiles(imageFiles: Array<string>): void;
    loadNextImage(imageIdx: number): Promise<void>;
    rotateImage(rotationAngle: number): void;
    updatePointerEventsState(setToNone: boolean): void;
    zoomImage(zoomLevel: number): void;
    getZoomLevel(): number;
    getImageCenter(): [number, number];
    private _handlePointerMove;
    private _handlePointerUpAfterDoublePress;
    private _updateImageHotspotPosition;
    private _handleSingleClickEvent;
    private _handleCanvasDoublePressEvent;
    private _checkIfZoomIsInvalid;
    private _handleViewportChangedEvent;
    private _handleImageResizeEvent;
    private _handleTileLoaded;
    private _checkIfMinZoomChanged;
    private _checkIfCenterPosIsUpdated;
    private _handleZoomChanged;
    static styles: import('lit').CSSResult;
}