//
//  YH_ScanUtility.h
//  YH_Mall
//
//  Created by Cloud on 15/4/10.
//  Copyright (c) 2015年 YOHO. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>

#define kScreenPointScale            CGRectGetWidth([[UIScreen mainScreen] bounds])/320.0f
#define kScreenPoint6Scale           CGRectGetWidth([[UIScreen mainScreen] bounds])/375.0f
#define kScreenWidth                ([[UIScreen mainScreen] bounds].size.width)
#define kScreenHeight                ([[UIScreen mainScreen] bounds].size.height)

typedef void (^StringBlock)(NSString *info, NSError *error);

@interface YH_ScanUtility : NSObject <AVCaptureMetadataOutputObjectsDelegate>

@property (assign, nonatomic) BOOL enableFlashLight;

@property (strong, nonatomic) AVCaptureDevice *device;
@property (strong, nonatomic) AVCaptureDeviceInput *input;
@property (strong, nonatomic) AVCaptureMetadataOutput *output;
@property (strong, nonatomic) AVCaptureSession *session;
@property (strong, nonatomic) AVCaptureVideoPreviewLayer *previewLayer;

- (void)addScanCallBackHandle:(StringBlock)scanCallBack;

- (void)resetCamera;

@end