import * as PIXI from 'pixi.js';
/**
 * @description Utility class that draws a grid on the screen.
 * @extends PIXI.Graphics
 */
export declare class GridHelper extends PIXI.Graphics {
    private _cellSize;
    private _correctedWidth;
    private _gridWidth;
    private _useCorrectedWidth;
    private _drawBoundaries;
    private _amtLines?;
    /**
     * @param {number} cellSize number. Optional. default: the square root of the grid's side length
     */
    set cellSize(cellSize: number);
    get cellSize(): number;
    /**
     * The amount of equally spaced lines along the grid's side.
     */
    get amtLines(): number;
    /**
     * The coordinates for each corner of the grid.
     * The leftmost (**x1**), topmost (**y1**), rightmost (**x2**), and bottommost (**y2**) coordinates.
     */
    get bounds(): {
        x1: number;
        y1: number;
        x2: number;
        y2: number;
    };
    set drawBoundaries(drawBoundaries: boolean);
    get drawBoundaries(): boolean;
    /**
     * The requested width of the grid given by the `width` constructor parameter.
     */
    get originalWidth(): number;
    /**
     * The corrected width of the grid, which is the smallest square root number larger than
     * the corrected width.
     */
    get correctedWidth(): number;
    get useCorrectedWidth(): boolean;
    /**
     * The actual width of the grid.
     * When the `cellSize` is not the default, the width of the grid will be the
     * width given in the `width` constructor. Otherwise, it is the corrected width.
     */
    get gridWidth(): number;
    /**
     *
     * @param {number} width number. Required.
     *
     * The target sidelength of the grid. It is best for `width` to be a perfect square (i.e., 2, 4, 9, 16, 25, etc.). If
     * not and the parameter `useCorrectedWidth` is set to **false**, then the grid will use a corrected width,
     * which is the smallest perfect square greater than `width`.
     *
     * @param {number} cellSize number, null. Optional, default: square root of corrected width
     *
     * The size of each cell in the grid.
     * If the value is **null**, the grid will use the default value.
     *
     * @param {{ width: number, color: number, alpha: number, alignment: number, native: boolean }}. Object. Optional.
     *
     *  default:
     *  **{
     *    width: 1,
     *    color: 0xffffff,
     *    alpha: 1,
     *    alignment: 0.5,
     *    native: true
     *  }**
     *
     * Configuration for the line style on the object. See documentation on `PIXI.Graphics` for more on the `LineStyle` class.
     *
     * @param {boolean} useCorrectedWidth boolean. Optional. default: **true**
     * If **true**, the grid will use the smallest perfect square greater than `width`.
     * Otherwise, the grid will use the exact value given by `width`.
     *
     * @param {boolean} drawBoundaries boolean. Optional. default: **true**
     * If **true**, the grid will draw its boundaries.
     * Otherwise, the grid will not draw its boundaries. Mouse pointer detection is not affected.
     */
    constructor(width?: number, cellSize?: number, lineConfig?: null, useCorrectedWidth?: boolean, drawBoundaries?: boolean);
    /**
     * Draws the grid to the containing PIXI stage
     */
    drawGrid(): this;
    /**
     * Clears the grid from the containing PIXI stage.
     *
     * @param {boolean} retainLineStyle Optional, default: **true**
     *
     * When **true**, the configuration for the line style object is preserved.
     * Otherwise, the object's line style will revert to the defaults specified by the `PIXI.Graphics` object.
     */
    clearGrid(retainLineStyle?: boolean): this | undefined;
    /**
     * Transforms global coordinates to grid coordinates.
     * @param {number} x
     * The global X coordinate.
     *
     * @param {number} y
     * The global Y coordinate.
     */
    getCellCoordinates(x: any, y: any): {
        x: number;
        y: number;
    };
    /**
     * Callback fired after detecting a mousemove event.
     *
     * @param {PIXI.InteractionData} evt
     * The `PIXI.InteractionData` captured by the event.
     *
     * @param {{x: number, y: number}} gridCoords
     * The grid-level coordinates captured by the event.
     */
    onMousemove(evt: any, gridCoords: any): void;
    /**
     * Calculates the corrected width. If the `useCorrectedWidth` constructor parameter is set to **false**,
     * then it simply keeps the given value for `width` as the corrected width.
     */
    _correctWidth(): void;
}