import { TreeSet } from 'tstl';
import { BaseGrid } from './BaseGrid';
/**
 * Zoom Level Matching Grids
 *
 * @param <T>
 *            grid type
 */
export declare class BaseZoomGrids<T extends BaseGrid> implements IterableIterator<T> {
    /**
     * Zoom level
     */
    private readonly zoom;
    /**
     * Grids
     */
    protected readonly grids: TreeSet<T>;
    private beginIterator;
    /**
     * Constructor
     *
     * @param zoom
     *            zoom level
     */
    constructor(zoom: number);
    /**
     * Get the zoom level
     *
     * @return zoom level
     */
    getZoom(): number;
    /**
     * Get the grids within the zoom level
     *
     * @return grids
     */
    getGrids(): TreeSet<T>;
    /**
     * Get the number of grids
     *
     * @return number of grids
     */
    numGrids(): number;
    /**
     * Determine if the zoom level has grids
     *
     * @return true if has grids
     */
    hasGrids(): boolean;
    /**
     * Add a grid
     *
     * @param grid
     *            grid
     * @return true if added
     */
    addGrid(grid: T): boolean;
    /**
     * Remove the grid
     *
     * @param grid
     *            grid
     * @return true if removed
     */
    removeGrid(grid: T): boolean;
    next(): IteratorResult<T>;
    reset(): void;
    [Symbol.iterator](): IterableIterator<T>;
}
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