/**
 * A class that defines an area in pixels.
 * @export
 * @class RenderableArea
 */
export declare class RenderableArea {
    private _x;
    private _x2;
    private _y;
    private _y2;
    private _width;
    private _height;
    private _surface;
    constructor(_x?: number, _x2?: number, _y?: number, _y2?: number);
    /**
     * The left x position.
     * @type {number}
     */
    x: number;
    /**
     * The right x position.
     * @type {number}
     */
    x2: number;
    /**
     * The top y position.
     * @type {number}
     */
    y: number;
    /**
     * The bottom y position.
     * @type {number}
     */
    y2: number;
    /**
     * The width of the area.
     * @readonly
     * @type {number}
     */
    readonly width: number;
    /**
     * The height of the area.
     * @readonly
     * @type {number}
     */
    readonly height: number;
    /**
     * The surface of the area.
     * @readonly
     * @type {number}
     */
    readonly surface: number;
    /**
     * Clamps a value to the x axis bounds. (x, x2)
     * @param {number} x
     * @returns {number}
     */
    clampX(x: number): number;
    /**
     * Clamps a value to the y axis bounds. (y, y2)
     * @param {number} y
     * @returns {number}
     */
    clampY(y: number): number;
    private _calculate;
}