update for Swift 1.2, Xcode 6.3

Author: mattneub

bk2ch25p860mandelbrotNoThreading/ch38p1106mandelbrotNoThreading/MyMandelbrotView.swift

@@ -27,11 +27,11 @@ class MyMandelbrotView : UIView {
 
     // create bitmap context
     func makeBitmapContext(size:CGSize) {
-        var bitmapBytesPerRow : UInt = UInt(size.width * 4)
+        var bitmapBytesPerRow = Int(size.width * 4)
         bitmapBytesPerRow += (16 - (bitmapBytesPerRow % 16)) % 16
         let colorSpace = CGColorSpaceCreateDeviceRGB()
         let prem = CGBitmapInfo(CGImageAlphaInfo.PremultipliedLast.rawValue)
-        let context = CGBitmapContextCreate(nil, UInt(size.width), UInt(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
+        let context = CGBitmapContextCreate(nil, Int(size.width), Int(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
         self.bitmapContext = context
     }
 

bk2ch25p865mandelbrotOperation/ch38p1106mandelbrotNoThreading/MyMandelbrotOperation.swift

@@ -19,11 +19,11 @@ class MyMandelbrotOperation : NSOperation {
 
     // create instance variable
     func makeBitmapContext(size:CGSize) {
-        var bitmapBytesPerRow : UInt = UInt(size.width * 4)
+        var bitmapBytesPerRow = Int(size.width * 4)
         bitmapBytesPerRow += (16 - (bitmapBytesPerRow % 16)) % 16
         let colorSpace = CGColorSpaceCreateDeviceRGB()
         let prem : CGBitmapInfo = CGBitmapInfo(CGImageAlphaInfo.PremultipliedLast.rawValue)
-        let context = CGBitmapContextCreate(nil, UInt(size.width), UInt(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
+        let context = CGBitmapContextCreate(nil, Int(size.width), Int(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
         self.bitmapContext = context
     }
 

bk2ch25p868mandelbrotGCD/ch38p1106mandelbrotNoThreading/MyMandelbrotView.swift

@@ -61,11 +61,11 @@ class MyMandelbrotView : UIView {
     func makeBitmapContext(size:CGSize) -> CGContext { // *
         self.assertOnBackgroundThread()
 
-        var bitmapBytesPerRow : UInt = UInt(size.width * 4)
+        var bitmapBytesPerRow = Int(size.width * 4)
         bitmapBytesPerRow += (16 - (bitmapBytesPerRow % 16)) % 16
         let colorSpace = CGColorSpaceCreateDeviceRGB()
         let prem = CGBitmapInfo(CGImageAlphaInfo.PremultipliedLast.rawValue)
-        let context = CGBitmapContextCreate(nil, UInt(size.width), UInt(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
+        let context = CGBitmapContextCreate(nil, Int(size.width), Int(size.height), 8, bitmapBytesPerRow, colorSpace, prem)
         return context
     }