import React from 'react';
import { RcFile } from 'antd/lib/upload';
/**
 * @param file 图片附件
 * @param canvasWidth 自定义canvas的宽度
 * @param useDpr 是否使用dpr缩放，控制高清屏下的清晰度
 */
export declare function useDrawImgFile(file: RcFile | undefined, canvasWidth?: number, useDpr?: boolean): {
    canvasBgRef: React.MutableRefObject<any>;
    canvasOcrRef: React.MutableRefObject<any>;
    canvasOcrOldRef: React.MutableRefObject<any>;
    canvasBgCtxRef: React.MutableRefObject<any>;
    canvasOcrCtxRef: React.MutableRefObject<any>;
    canvasOcrOldCtxRef: React.MutableRefObject<any>;
    sliderCom: (file: any) => JSX.Element;
    canvasWidth: number;
    currentSelectCoordinates: any;
};
export declare function useCanvasMove(canvasDom: any, canvasCtx: any, file: any): {
    currentSelectCoordinates: any;
};