export declare const contain: (parentWidth: number, parentHeight: number, childWidth: number, childHeight: number, scale?: number, offsetX?: number, offsetY?: number) => {
    width: number;
    height: number;
    offsetX: number;
    offsetY: number;
};
export declare const cover: (parentWidth: number, parentHeight: number, childWidth: number, childHeight: number, scale?: number, offsetX?: number, offsetY?: number) => {
    width: number;
    height: number;
    offsetX: number;
    offsetY: number;
};