UIImage Scale to Width

//
//  Extensions.swift
//  Commerzbank
//
//  Created by Cody Henshaw on 2/24/16.
//  Copyright © 2016 Cody Henshaw. All rights reserved.
//

import Foundation
import UIKit

extension UIImage {
    func scaleToWidth(originalImage: UIImage, toWidth: CGFloat) -> UIImage {
        let height = originalImage.size.height * (toWidth / originalImage.size.width)
        let size = CGSizeMake(toWidth, height)
        UIGraphicsBeginImageContext(size)
        originalImage.drawInRect(CGRectMake(0.0, 0.0, size.width, size.height))
        let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return scaledImage
    }
}