/** structure represents rectangle coordinates */
export interface IRectangle {
    top: number;
    left: number;
    width: number;
    height: number;
}
export declare class Rectangle implements IRectangle {
    left: number;
    top: number;
    width: number;
    height: number;
    get right(): number;
    get bottom(): number;
    /**
     * create a rectangle from an object that looks
     * like a rectangle, probably a serialized object
     */
    static Create(obj: Partial<Rectangle>): Rectangle;
    static IsRectangle(obj: unknown): obj is IRectangle;
    constructor(left?: number, top?: number, width?: number, height?: number);
    /** returns a new rect shifted from this one by (x,y) */
    Shift(x?: number, y?: number): Rectangle;
    Scale(scale_x?: number, scale_y?: number): Rectangle;
    /** returns a new rect expanded from this one by (x,y) */
    Expand(x?: number, y?: number): Rectangle;
    /** returns a new rectangle that combines this rectangle with the argument */
    Combine(rect: Rectangle): Rectangle;
    /**
     * check if rectangle contains the given coordinates, optionally with
     * some added padding
     */
    Contains(x: number, y: number, padding?: number): boolean;
    /** convenience method for canvas */
    ContextFill(context: CanvasRenderingContext2D): void;
    /** convenience method for canvas */
    ContextStroke(context: CanvasRenderingContext2D): void;
    /** clamp coordinate to rectangle */
    Clamp(x: number, y: number): {
        x: number;
        y: number;
    };
    /** convenience method for html element style */
    ApplyStyle(element: HTMLElement): void;
    toJSON(): {
        top: number;
        left: number;
        width: number;
        height: number;
    };
}