small refactoring

HardcoreDataDemo/HardcoreDataDemo/ObjectListObserverDemoViewController.swift

@@ -74,8 +74,11 @@ class ObjectListObserverDemoViewController: UITableViewController, ManagedObject
     override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
         
         let cell = tableView.dequeueReusableCellWithIdentifier("PaletteTableViewCell") as! PaletteTableViewCell
+        
         let palette = paletteList[indexPath]
-        cell.setHue(palette.hue, saturation: palette.saturation, brightness: palette.brightness)
+        cell.colorView?.backgroundColor = palette.color
+        cell.label?.text = palette.colorText
+        
         return cell
     }
     
@@ -132,11 +135,7 @@ class ObjectListObserverDemoViewController: UITableViewController, ManagedObject
     
     func managedObjectList(listController: ManagedObjectListController<Palette>, didUpdateObject object: Palette, atIndexPath indexPath: NSIndexPath) {
         
-        if let cell = self.tableView.cellForRowAtIndexPath(indexPath) as? PaletteTableViewCell {
+        self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .Automatic)
-            
-            let palette = paletteList[indexPath]
-            cell.setHue(palette.hue, saturation: palette.saturation, brightness: palette.brightness)
-        }
     }
     
     func managedObjectList(listController: ManagedObjectListController<Palette>, didMoveObject object: Palette, fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {
@@ -176,10 +175,7 @@ class ObjectListObserverDemoViewController: UITableViewController, ManagedObject
             for _ in 0 ... 2 {
                 
                 let palette = transaction.create(Palette)
-                palette.hue = Int32(arc4random_uniform(360))
+                palette.setInitialValues()
-                palette.saturation = 1.0
-                palette.brightness = 0.5
-                palette.dateAdded = NSDate()
             }
             
             transaction.commit { (result) -> Void in }

HardcoreDataDemo/HardcoreDataDemo/ObjectObserverDemoViewController.swift

@@ -35,10 +35,7 @@ class ObjectObserverDemoViewController: UIViewController, ManagedObjectObserver
             HardcoreData.beginSynchronous { (transaction) -> Void in
                 
                 let palette = transaction.create(Palette)
-                palette.hue = Int32(arc4random_uniform(360))
+                palette.setInitialValues()
-                palette.saturation = 1.0
-                palette.brightness = 0.5
-                palette.dateAdded = NSDate()
                 
                 transaction.commitAndWait()
             }
@@ -156,15 +153,12 @@ class ObjectObserverDemoViewController: UIViewController, ManagedObjectObserver
     
     func reloadPaletteInfo(palette: Palette) {
         
-        let color = UIColor(
-            hue: CGFloat(palette.hue) / 360.0,
-            saturation: CGFloat(palette.saturation),
-            brightness: CGFloat(palette.brightness),
-            alpha: 1.0
-        )
-        self.colorNameLabel?.textColor = color
         self.colorNameLabel?.text = palette.colorName
+        
+        let color = palette.color
+        self.colorNameLabel?.textColor = color
         self.colorView?.backgroundColor = color
+        
         self.hsbLabel?.text = "H: \(palette.hue)˚, S: \(round(palette.saturation * 100.0))%, B: \(round(palette.brightness * 100.0))%"
         
         let dateString = NSDateFormatter.localizedStringFromDate(

HardcoreDataDemo/HardcoreDataDemo/Palette.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import UIKit
 import CoreData
 
 class Palette: NSManagedObject {
@@ -55,4 +56,27 @@ class Palette: NSManagedObject {
             self.didChangeValueForKey(key)
         }
     }
+    
+    var color: UIColor {
+        
+        return UIColor(
+            hue: CGFloat(self.hue) / 360.0,
+            saturation: CGFloat(self.saturation),
+            brightness: CGFloat(self.brightness),
+            alpha: 1.0
+        )
+    }
+    
+    var colorText: String {
+        
+        return "H: \(self.hue)˚, S: \(round(self.saturation * 100.0))%, B: \(round(self.brightness * 100.0))%"
+    }
+    
+    func setInitialValues() {
+        
+        self.hue = Int32(arc4random_uniform(360))
+        self.saturation = 1.0
+        self.brightness = 0.5
+        self.dateAdded = NSDate()
+    }
 }

HardcoreDataDemo/HardcoreDataDemo/PaletteTableViewCell.swift

@@ -12,15 +12,4 @@ class PaletteTableViewCell: UITableViewCell {
     
     @IBOutlet weak var colorView: UIView?
     @IBOutlet weak var label: UILabel?
-    
-    func setHue(hue: Int32, saturation: Float, brightness: Float) {
-        
-        let color = UIColor(
-            hue: CGFloat(hue) / 360.0,
-            saturation: CGFloat(saturation),
-            brightness: CGFloat(brightness),
-            alpha: 1.0)
-        self.colorView?.backgroundColor = color
-        self.label?.text = "H: \(hue)˚, S: \(round(saturation * 100.0))%, B: \(round(brightness * 100.0))%"
-    }
 }