Fixed some more runtime errors. I have no idea how this code even worked anymore.

redo/osxaltest/box.swift

@@ -7,7 +7,6 @@ import Cocoa
 class tBoxContainer : NSView {
 	override var alignmentRectInsets: NSEdgeInsets {
 		get {
-print("in tBoxContainer.alignmentRectInsets")
 			return NSEdgeInsetsMake(50, 50, 50, 50)
 		}
 	}
@@ -61,7 +60,7 @@ class tBox : tControl {
 	// TODO make the other dimension not hug (as an experiment)
 	func tFillAutoLayout(inout p: tAutoLayoutParams) {
 		var hasStretchy = false
-		if self.children.count == 0 {
+		if self.children.count != 0 {
 			hasStretchy = self.actualLayoutWork()
 		}
 		p.view = self.v
@@ -117,9 +116,9 @@ class tBox : tControl {
 		}
 
 		// first string the views together
-		var constraint = "H:"
+		var constraint = "H:|"
 		if self.vertical {
-			constraint = "V:"
+			constraint = "V:|"
 		}
 		var firstStretchy = true
 		// swift can't tell that nStretchy isn't used until firstStretchy becomes false
@@ -129,7 +128,7 @@ class tBox : tControl {
 				constraint += "-"
 			}
 			constraint += "[" + tAutoLayoutKey(i)
-			// swift currently can't do self.children[i].stretchy
+			// TODO swift currently can't do self.children[i].stretchy
 			var child = self.children[Int(i)]
 			if child.stretchy {
 				if firstStretchy {
@@ -144,11 +143,7 @@ class tBox : tControl {
 			constraint += "]"
 		}
 		constraint += "|"
-		self.v.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat(
+		self.v.addConstraints(mkconstraints(constraint, views))
-			constraint,
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views))
 		// TODO do not release constraint; it's autoreleased?
 
 		// next make the views span the full other dimension
@@ -159,11 +154,7 @@ class tBox : tControl {
 				constraint = "H:|["
 			}
 			constraint += tAutoLayoutKey(i) + "]|"
-			self.v.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat(
+			self.v.addConstraints(mkconstraints(constraint, views))
-				constraint,
-				options: NSLayoutFormatOptions(0),
-				metrics: nil,
-				views: views))
 			// TODO do not release constraint; it's autoreleased?
 		}
 

redo/osxaltest/control.swift

@@ -22,3 +22,12 @@ protocol tControl : class {
 func tAutoLayoutKey(n: UIntMax) -> String {
 	return NSString(format: "view%d", n) as String
 }
+
+func mkconstraints(constraint: String, views: [String: NSView]) -> [AnyObject] {
+println("making constraint \(constraint)")
+	return NSLayoutConstraint.constraintsWithVisualFormat(
+		constraint,
+		options: NSLayoutFormatOptions(0),
+		metrics: nil,
+		views: views)
+}

redo/osxaltest/main.swift

@@ -2,7 +2,7 @@
 import Cocoa
 
 var spaced = false
-var firstvert = false
+var firstvert = true
 
 func appLaunched() {
 	var hbox: tBox
@@ -57,9 +57,9 @@ func appLaunched() {
 
 	hbox = tBox(vertical: !firstvert, spaced: spaced)
 	entry = tEntry()
-	hbox.tAddControl(entry, stretchy: false)
-	entry = tEntry()
 	hbox.tAddControl(entry, stretchy: true)
+	entry = tEntry()
+	hbox.tAddControl(entry, stretchy: false)
 	box.tAddControl(hbox, stretchy: false)
 
 	hbox = tBox(vertical: !firstvert, spaced: spaced)

redo/osxaltest/spinbox.swift

@@ -5,7 +5,6 @@ import Cocoa
 class tSpinboxContainer : NSView {
 	override var alignmentRectInsets: NSEdgeInsets {
 		get {
-print("in tSpinboxContainer.alignmentRectInsets")
 			return NSEdgeInsetsMake(50, 50, 50, 50)
 		}
 	}
@@ -51,23 +50,11 @@ nspinbox++
 			"t":	self.t,
 			"s":	self.s,
 		]
-		var constraints = NSLayoutConstraint.constraintsWithVisualFormat(
+		var constraints = mkconstraints("H:|[t]-[s]|", views)
-			"H:|[t]-[s]|",
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views)
 		self.c.addConstraints(constraints)
-		constraints = NSLayoutConstraint.constraintsWithVisualFormat(
+		constraints = mkconstraints("V:|[t]|", views)
-			"V:|[t]|",
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views)
 		self.c.addConstraints(constraints)
-		constraints = NSLayoutConstraint.constraintsWithVisualFormat(
+		constraints = mkconstraints("V:|[s]|", views)
-			"V:|[s]|",
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views)
 		self.c.addConstraints(constraints)
 
 		self.parent = nil

redo/osxaltest/window.swift

@@ -4,7 +4,7 @@ import Cocoa
 // auto layout helpers
 func tIsAmbiguous(view: NSView, indent: Int) {
 	var s = String(count: indent, repeatedValue: " " as Character)
-	print("\(s) \(view.className) \(view.hasAmbiguousLayout)")
+	println("\(s) \(view.className) \(view.hasAmbiguousLayout)")
 	if view.hasAmbiguousLayout {
 		view.window?.visualizeConstraints(view.superview!.constraints)
 	}
@@ -85,11 +85,7 @@ class tWindow : tControl {
 		if p.attachRight {
 			constraint += margin + "|"
 		}
-		var constraints = NSLayoutConstraint.constraintsWithVisualFormat(
+		var constraints = mkconstraints(constraint, views)
-			constraint,
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views)
 		contentView.addConstraints(constraints)
 
 		constraint = "V:"
@@ -100,11 +96,7 @@ class tWindow : tControl {
 		if p.attachBottom {
 			constraint += margin + "|"
 		}
-		constraints = NSLayoutConstraint.constraintsWithVisualFormat(
+		constraints = mkconstraints(constraint, views)
-			constraint,
-			options: NSLayoutFormatOptions(0),
-			metrics: nil,
-			views: views)
 		contentView.addConstraints(constraints)
 	}
 }