export declare type ImageItem = {
    rotateValue?: number;
    src?: string;
    alt?: string;
    name?: string;
};
/**
 * 工具函数  start
 */
export declare function num2px(num: any): string;
export declare function px2num(str: any): number;
/**
 * el1元素的区域是否超过el2元素
 * @param  {[type]}  el1 [description]
 * @param  {[type]}  el2 [description]
 * @return {Boolean}     [description]
 */
export declare function isLarger(el1: any, el2: any): boolean;
export declare function isSourceChange(oldSource: ImageItem[], newSource: ImageItem[]): boolean;
export declare const setStyle: (el: any, css: any) => void;
export declare const getImageSize: (image: ImageItem & HTMLImageElement, callback: (naturalWidth: number, naturalHeight: number) => void, scope?: any) => void;
export declare const isOne2One: (image: any) => boolean;
export declare const downloadFn: (url: any, alt: any) => void;
export declare const isFullEnabled: () => any;
export declare const calculateImg: (naturalWidth: any, naturalHeight: any) => {
    width: any;
    height: any;
    imgRatio: any;
};
export declare const getImgByChildren: (children: any) => {
    name: string;
    src: string;
}[] | undefined;
export declare const getImgByProps: (source: any, children: any, imgs: any) => any;