import { Point } from './canvas-util';
/**
 * A two dimensional array of elements of the given class that can extend infinitely in any direction, both positive and negative.
 * @private
 */
export declare class Grid<T> {
    #private;
    /**
     * Get the minimum x coordinate among the elements in the grid.
     */
    minX(): number;
    /**
     * Get the maximum x coordinate among the elements in the grid.
     */
    maxX(): number;
    /**
     * Get the minimum y coordinate among the elements in the grid.
     */
    minY(): number;
    /**
     * Get the maximum y coordinate among the elements in the grid.
     */
    maxY(): number;
    /**
     * Get the total extension of the grid along the x axis.
     */
    width(): number;
    /**
     * Get the total extension of the grid along the y axis.
     */
    height(): number;
    /**
     * Add a new column at the start of the x axis.
     */
    addColumnLeft(): void;
    /**
     * Add a new column at the end of the x axis.
     */
    addColumnRight(): void;
    /**
     * Add a new row at the start of the y axis.
     */
    addRowTop(): void;
    /**
     * Add a new row at the end of the y axis.
     */
    addRowBottom(): void;
    /**
     * Get the element at the given coordinates or undefined if there is no element at the given coordinates.
     */
    get(coords: Point): T | undefined;
    /**
     * Set the element at the given coordinates to the given element.
     */
    set(coords: Point, value: T | undefined): void;
    /**
     * Get the closest coordinates to the given coordinates that are not set to an element.
     */
    getClosestEmptyCoordinate(coords: Point): Point;
}