import { OnInit, ElementRef, EventEmitter } from '@angular/core';
import Cropper from 'cropperjs';
/**
 * 图片剪裁组件
 */
export declare class NpCropper implements OnInit {
    image: ElementRef;
    imageUrl: any;
    cropbox: Cropper.CropBoxData;
    loadImageErrorText: string;
    cropperOptions: Cropper.Options;
    export: EventEmitter<ImageCropperResult>;
    ready: EventEmitter<{}>;
    isLoading: boolean;
    cropper: Cropper;
    imageElement: HTMLImageElement;
    loadError: any;
    constructor();
    ngOnInit(): void;
    /**
       * Image loaded
       * @param ev
       */
    imageLoaded(ev: Event): void;
    /**
     * Image load error
     * @param event
     */
    imageLoadError(event: any): void;
    /**
     * Export canvas
     * @param base64
     */
    exportCanvas(base64?: boolean, options?: Cropper.GetCroppedCanvasOptions): void;
}
export interface ImageCropperResult {
    imageData: Cropper.ImageData;
    cropData: Cropper.CropBoxData;
    blob: Blob;
    dataUrl?: string;
}