/// <reference types="google.maps" />
import { TerraDrawChanges, SetCursor, TerraDrawStylingFunction, TerraDrawCallbacks } from "../common";
import { BaseAdapterConfig, TerraDrawBaseAdapter } from "./common/base.adapter";
export declare class TerraDrawGoogleMapsAdapter extends TerraDrawBaseAdapter {
    constructor(config: {
        lib: typeof google.maps;
        map: google.maps.Map;
    } & BaseAdapterConfig);
    private _cursor;
    private _cursorStyleSheet;
    private _lib;
    private _map;
    private _overlay;
    private _clickEventListener;
    private _mouseMoveEventListener;
    private get _layers();
    /**
     * Generates an SVG path string for a circle with the given center coordinates and radius.
     * Based off this StackOverflow answer: https://stackoverflow.com/a/27905268/1363484
     * @param cx The x-coordinate of the circle's center.
     * @param cy The y-coordinate of the circle's center.
     * @param r The radius of the circle.
     * @returns The SVG path string representing the circle.
     */
    private circlePath;
    register(callbacks: TerraDrawCallbacks): void;
    unregister(): void;
    /**
     * Returns the longitude and latitude coordinates from a given PointerEvent on the map.
     * @param event The PointerEvent or MouseEvent containing the screen coordinates of the pointer.
     * @returns An object with 'lng' and 'lat' properties representing the longitude and latitude, or null if the conversion is not possible.
     */
    getLngLatFromEvent(event: PointerEvent | MouseEvent): {
        lng: number;
        lat: number;
    } | null;
    /**
     * Retrieves the HTML element of the Google Map element that handles interaction events
     * @returns The HTMLElement representing the map container.
     */
    getMapEventElement(): HTMLDivElement;
    /**
     * Converts longitude and latitude coordinates to pixel coordinates in the map container.
     * @param lng The longitude coordinate to project.
     * @param lat The latitude coordinate to project.
     * @returns An object with 'x' and 'y' properties representing the pixel coordinates within the map container.
     */
    project(lng: number, lat: number): {
        x: number;
        y: number;
    };
    /**
     * Converts pixel coordinates in the map container to longitude and latitude coordinates.
     * @param x The x-coordinate in the map container to unproject.
     * @param y The y-coordinate in the map container to unproject.
     * @returns An object with 'lng' and 'lat' properties representing the longitude and latitude coordinates.
     */
    unproject(x: number, y: number): {
        lng: number;
        lat: number;
    };
    /**
     * Sets the cursor style for the map container.
     * @param cursor The CSS cursor style to apply, or 'unset' to remove any previously applied cursor style.
     */
    setCursor(cursor: Parameters<SetCursor>[0]): void;
    /**
     * Enables or disables the double-click to zoom functionality on the map.
     * @param enabled Set to true to enable double-click to zoom, or false to disable it.
     */
    setDoubleClickToZoom(enabled: boolean): void;
    /**
     * Enables or disables the draggable functionality of the map.
     * @param enabled Set to true to enable map dragging, or false to disable it.
     */
    setDraggability(enabled: boolean): void;
    private renderedFeatureIds;
    /**
     * Renders GeoJSON features on the map using the provided styling configuration.
     * @param changes An object containing arrays of created, updated, and unchanged features to render.
     * @param styling An object mapping draw modes to feature styling functions
     */
    render(changes: TerraDrawChanges, styling: TerraDrawStylingFunction): void;
    private clearLayers;
    /**
     * Clears the map and store of all rendered data layers
     * @returns void
     * */
    clear(): void;
    getCoordinatePrecision(): number;
}