//
//  KMGOCROperation.h
//  PDF Reader Pro Edition
//
//  Created by 万军 on 2020/3/23.
//

/**
    Google OCR 转换文本 NSOperation
 */

#import <Foundation/Foundation.h>

@class KMGOCROperation;
@protocol KMGOCROperationDelegate <NSObject>
@optional
- (void)GOCROperation:(KMGOCROperation *)operation cancelOCRImageAtIndex:(NSInteger)index;
- (void)GOCROperation:(KMGOCROperation *)operation startOCRImageAtIndex:(NSInteger)index;
- (void)GOCROperation:(KMGOCROperation *)operation finishOCRImageAtIndex:(NSInteger)index results:(NSArray *)results;
- (void)GOCROperation:(KMGOCROperation *)operation failureOCRImageAtIndex:(NSInteger)index error:(NSError *)error;
@end

@interface KMGOCROperation : NSOperation

@property (nonatomic, assign) id<KMGOCROperationDelegate> operationDelegate;

/* 设置的识别语言数组 */
@property (nonatomic, retain) NSMutableArray *selectedLanguages;

/**
   Google OCR ONSOperation 初始化.
   @param image 需要转换的NSImage对象
   @param imageIndex 需要转换的NSImage对象的序号
*/
- (instancetype)initWithRecognitionImage:(NSImage *)image withImageIndex:(NSInteger)imageIndex;

@end