development: updated CollectionView internals

Sources/iOS/CollectionView.swift

@@ -61,9 +61,12 @@ open class CollectionView: UICollectionView {
 	}
 	
 	/// A preset wrapper around interimSpace.
-	open var interimSpacePreset = InterimSpacePreset.none {
-		didSet {
-            interimSpace = InterimSpacePresetToValue(preset: interimSpacePreset)
+    open var interimSpacePreset: InterimSpacePreset {
+        get {
+            return (collectionViewLayout as? CollectionViewLayout)!.interimSpacePreset
+        }
+        set(value) {
+            (collectionViewLayout as? CollectionViewLayout)!.interimSpacePreset = value
         }
 	}
 	
@@ -120,7 +123,6 @@ open class CollectionView: UICollectionView {
      */
 	open func prepare() {
 		contentScaleFactor = Screen.scale
-		backgroundColor = nil
-		contentEdgeInsets = .zero
+		backgroundColor = .white
     }
 }

Sources/iOS/CollectionViewCell.swift

@@ -150,45 +150,6 @@ open class CollectionViewCell: UICollectionViewCell, Pulseable {
 		}
 	}
 	
-	/// A preset wrapper around contentEdgeInsets.
-	public var contentEdgeInsetsPreset: EdgeInsetsPreset {
-		get {
-			return contentView.grid.contentEdgeInsetsPreset
-		}
-		set(value) {
-			contentView.grid.contentEdgeInsetsPreset = value
-		}
-	}
-	
-	/// A reference to EdgeInsets.
-	@IBInspectable
-    open var contentEdgeInsets: EdgeInsets {
-		get {
-			return contentView.grid.contentEdgeInsets
-		}
-		set(value) {
-			contentView.grid.contentEdgeInsets = value
-		}
-	}
-	
-	/// A preset wrapper around interimSpace.
-	open var interimSpacePreset = InterimSpacePreset.none {
-		didSet {
-            interimSpace = InterimSpacePresetToValue(preset: interimSpacePreset)
-		}
-	}
-	
-	/// A wrapper around grid.interimSpace.
-	@IBInspectable
-    open var interimSpace: InterimSpace {
-		get {
-			return contentView.grid.interimSpace
-		}
-		set(value) {
-			contentView.grid.interimSpace = value
-		}
-	}
-	
 	/// A property that accesses the backing layer's background
 	@IBInspectable
     open override var backgroundColor: UIColor? {

Sources/iOS/CollectionViewLayout.swift

@@ -142,10 +142,10 @@ open class CollectionViewLayout: UICollectionViewLayout {
 			layoutItems.append((layoutAttributesForItem(at: indexPath)!, indexPath as NSIndexPath))
 			
 			offset.x += interimSpace
-			offset.x += nil == item.width ? itemSize.width : item.width!
+			offset.x += item.width ?? itemSize.width
 			
 			offset.y += interimSpace
-			offset.y += nil == item.height ? itemSize.height : item.height!
+			offset.y += item.height ?? itemSize.height
 		}
 		
 		offset.x += contentEdgeInsets.right - interimSpace