TesseractOCR+PromiseKit.swift

//
//  TesseractOCR+PromiseKit.swift
//
//  Created by Ian G on 5/1/15.
//

import PromiseKit
import TesseractOCR

extension G8Tesseract
{
    func promise() -> Promise< String > {
        return Promise< String >({ (fulfill, reject) -> Void in
            
            dispatch_async(dispatch_get_global_queue(0, 0), { () -> Void in
                if self.recognize() == true
                {
                    fulfill(self.recognizedText)
                } else
                {
                    reject(NSError(domain: "Recognize Failed", code: 0, userInfo: nil) )
                }
                
            })
        })
    }
}