Implemented stretchiness.

redo/osxaltest/box.swift

@@ -55,8 +55,18 @@ class Box : NSView, Control {
 			vertHuggingPri:	vertHuggingPri(view))
 		self.addSubview(view)
 		self.controls.append(c)
+
+		// if a control is stretchy, it should not hug in the primary direction
+		// otherwise, it should *forcibly* hug
+		if c.stretchy {
+			setHuggingPri(view, myNSLayoutPriorityDefaultLow, self.primaryOrientation)
+		} else {
+			setHuggingPri(view, myNSLayoutPriorityRequired, self.primaryOrientation)
+		}
+
 		// make sure controls don't hug their secondary direction so they fill the width of the view
 		setHuggingPri(view, myNSLayoutPriorityDefaultLow, self.secondaryOrientation)
+
 		self.relayout()
 	}
 

redo/osxaltest/entry.swift

@@ -32,6 +32,16 @@ class Entry : NSTextField, Control {
 	func SetParent(p: Control) {
 		self.parent = p
 	}
-}
 
-//TODO		p.nonStretchyWidthPredicate = "(==96)"		// TODO verify against Interface Builder
+	// by default a text entry has no intrinsic content width
+	// in order for our layout containers to work, we need to give it one
+	// give it what Interface Builder uses as a default
+	// TODO verify against Interface Builder
+	override var intrinsicContentSize: NSSize {
+		get {
+			var s = super.intrinsicContentSize
+			s.width = 96
+			return s
+		}
+	}
+}