Skip to content

Updated to Swift 3 syntax #3

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Mintaffee wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Updated to Swift 3 syntax #3

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
108 changes: 54 additions & 54 deletions fixImageOrientation.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,58 +4,58 @@

import UIKit

func fixImageOrientation(src:UIImage)->UIImage {

if src.imageOrientation == UIImageOrientation.Up {
return src
func fixImageOrientation(src:UIImage)->UIImage {

if src.imageOrientation == UIImageOrientation.up {
return src
}

var transform: CGAffineTransform = CGAffineTransform.identity
switch src.imageOrientation {
case UIImageOrientation.down, UIImageOrientation.downMirrored:
transform = transform.translatedBy(x: src.size.width, y: src.size.height)
transform = transform.rotated(by: CGFloat(M_PI))
break
case UIImageOrientation.left, UIImageOrientation.leftMirrored:
transform = transform.translatedBy(x: src.size.width, y: 0)
transform = transform.rotated(by: CGFloat(M_PI_2))
break
case UIImageOrientation.right, UIImageOrientation.rightMirrored:
transform = transform.translatedBy(x: 0, y: src.size.height)
transform = transform.rotated(by: CGFloat(-M_PI_2))
break
case UIImageOrientation.up, UIImageOrientation.upMirrored:
break
}

switch src.imageOrientation {
case UIImageOrientation.upMirrored, UIImageOrientation.downMirrored:
transform.translatedBy(x: src.size.width, y: 0)
transform.scaledBy(x: -1, y: 1)
break
case UIImageOrientation.leftMirrored, UIImageOrientation.rightMirrored:
transform.translatedBy(x: src.size.height, y: 0)
transform.scaledBy(x: -1, y: 1)
case UIImageOrientation.up, UIImageOrientation.down, UIImageOrientation.left, UIImageOrientation.right:
break
}

let ctx:CGContext = CGContext(data: nil, width: Int(src.size.width), height: Int(src.size.height), bitsPerComponent: src.cgImage!.bitsPerComponent, bytesPerRow: 0, space: src.cgImage!.colorSpace!, bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue)!

ctx.concatenate(transform)


switch src.imageOrientation {
case UIImageOrientation.left, UIImageOrientation.leftMirrored, UIImageOrientation.right, UIImageOrientation.rightMirrored:
ctx.draw(src.cgImage!, in: CGRect(x: 0, y: 0, width: src.size.width, height: src.size.height))
break
default:
ctx.draw(src.cgImage!, in: CGRect(x: 0, y: 0, width: src.size.width, height: src.size.height) )
break
}

let cgimg:CGImage = ctx.makeImage()!
let img:UIImage = UIImage(cgImage: cgimg)

return img
}

var transform: CGAffineTransform = CGAffineTransformIdentity

switch src.imageOrientation {
case UIImageOrientation.Down, UIImageOrientation.DownMirrored:
transform = CGAffineTransformTranslate(transform, src.size.width, src.size.height)
transform = CGAffineTransformRotate(transform, CGFloat(M_PI))
break
case UIImageOrientation.Left, UIImageOrientation.LeftMirrored:
transform = CGAffineTransformTranslate(transform, src.size.width, 0)
transform = CGAffineTransformRotate(transform, CGFloat(M_PI_2))
break
case UIImageOrientation.Right, UIImageOrientation.RightMirrored:
transform = CGAffineTransformTranslate(transform, 0, src.size.height)
transform = CGAffineTransformRotate(transform, CGFloat(-M_PI_2))
break
case UIImageOrientation.Up, UIImageOrientation.UpMirrored:
break
}

switch src.imageOrientation {
case UIImageOrientation.UpMirrored, UIImageOrientation.DownMirrored:
CGAffineTransformTranslate(transform, src.size.width, 0)
CGAffineTransformScale(transform, -1, 1)
break
case UIImageOrientation.LeftMirrored, UIImageOrientation.RightMirrored:
CGAffineTransformTranslate(transform, src.size.height, 0)
CGAffineTransformScale(transform, -1, 1)
case UIImageOrientation.Up, UIImageOrientation.Down, UIImageOrientation.Left, UIImageOrientation.Right:
break
}

let ctx:CGContextRef = CGBitmapContextCreate(nil, Int(src.size.width), Int(src.size.height), CGImageGetBitsPerComponent(src.CGImage), 0, CGImageGetColorSpace(src.CGImage), CGImageAlphaInfo.PremultipliedLast.rawValue)!

CGContextConcatCTM(ctx, transform)

switch src.imageOrientation {
case UIImageOrientation.Left, UIImageOrientation.LeftMirrored, UIImageOrientation.Right, UIImageOrientation.RightMirrored:
CGContextDrawImage(ctx, CGRectMake(0, 0, src.size.height, src.size.width), src.CGImage)
break
default:
CGContextDrawImage(ctx, CGRectMake(0, 0, src.size.width, src.size.height), src.CGImage)
break
}

let cgimg:CGImageRef = CGBitmapContextCreateImage(ctx)!
let img:UIImage = UIImage(CGImage: cgimg)

return img
}