Fixed Mac OS X issues.

container_darwin.go

@@ -25,8 +25,10 @@ type sizing struct {
 	neighborAlign C.struct_xalignment
 }
 
-func newContainer() *container {
+// containerResized() gets called early so we have to do this in the constructor
+func newContainer(resize func(x int, y int, width int, height int, d *sizing)) *container {
 	c := new(container)
+	c.resize = resize
 	c.id = C.newContainerView(unsafe.Pointer(c))
 	return c
 }

group_darwin.go

@@ -18,11 +18,10 @@ type group struct {
 
 func newGroup(text string, control Control) Group {
 	g := new(group)
-	g.container = newContainer()
-	g.controlSingleObject = newControlSingleObject(C.newGroup(g.container.id))
 	g.child = control
+	g.container = newContainer(g.child.resize)
 	g.child.setParent(g.container.parent())
-	g.container.resize = g.child.resize
+	g.controlSingleObject = newControlSingleObject(C.newGroup(g.container.id))
 	g.SetText(text)
 	return g
 }

tab_darwin.go

@@ -24,10 +24,9 @@ func newTab() Tab {
 }
 
 func (t *tab) Append(name string, control Control) {
-	c := newContainer()
+	c := newContainer(control.resize)
 	t.tabs = append(t.tabs, c)
 	control.setParent(c.parent())
-	c.resize = control.resize
 	t.children = append(t.children, control)
 	cname := C.CString(name)
 	defer C.free(unsafe.Pointer(cname))

window_darwin.go

@@ -27,12 +27,11 @@ func newWindow(title string, width int, height int, control Control) *window {
 		id:        id,
 		closing:   newEvent(),
 		child:		control,
-		container: newContainer(),
 	}
 	C.windowSetDelegate(w.id, unsafe.Pointer(w))
-	C.windowSetContentView(w.id, w.container.id)
+	w.container = newContainer(w.child.resize)
 	w.child.setParent(w.container.parent())
-	w.container.resize = w.child.resize
+	C.windowSetContentView(w.id, w.container.id)
 	// trigger an initial resize
 	return w
 }
@@ -49,6 +48,7 @@ func (w *window) SetTitle(title string) {
 
 func (w *window) Show() {
 	C.windowShow(w.id)
+	// TODO we need a dummy resize here because things might not be in the right place
 }
 
 func (w *window) Hide() {