Fix up objects code

container.go

@@ -28,7 +28,6 @@ func newContainer (layout tomo.Layout, children ...tomo.Object) *Container {
 func NewOuterContainer (layout tomo.Layout, children ...tomo.Object) *Container {
 	this := newContainer(layout, children...)
 	this.SetRole(tomo.R("objects", "Container", "outer"))
-	tomo.Apply(this)
 	return this
 }
 
@@ -37,7 +36,6 @@ func NewOuterContainer (layout tomo.Layout, children ...tomo.Object) *Container
 func NewSunkenContainer (layout tomo.Layout, children ...tomo.Object) *Container {
 	this := newContainer(layout, children...)
 	this.SetRole(tomo.R("objects", "Container", "sunken"))
-	tomo.Apply(this)
 	return this
 }
 
@@ -45,7 +43,6 @@ func NewSunkenContainer (layout tomo.Layout, children ...tomo.Object) *Container
 func NewInnerContainer (layout tomo.Layout, children ...tomo.Object) *Container {
 	this := newContainer(layout, children...)
 	this.SetRole(tomo.R("objects", "Container", "inner"))
-	tomo.Apply(this)
 	return this
 }
 

scrollbar.go

@@ -335,6 +335,14 @@ func (this scrollbarLayout) Arrange (hints tomo.LayoutHints, boxes []tomo.Box) {
 	
 }
 
+func (this scrollbarLayout) RecommendedHeight (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
+func (this scrollbarLayout) RecommendedWidth (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
 func (this scrollbarLayout) viewportContentRatio () float64 {
 	if this.linked == nil { return 0 }
 	return this.viewportLength() / this.contentLength()

scrollcontainer.go

@@ -133,6 +133,7 @@ func (this *ScrollContainer) handleScroll (x, y float64) {
 		Sub(image.Pt(int(x), int(y))))
 }
 
+// TODO: remove this and replace it with something from the layouts package
 type scrollContainerLayout struct {
 	root       tomo.ContentObject
 	horizontal *Scrollbar
@@ -183,6 +184,14 @@ func (this *scrollContainerLayout) Arrange (hints tomo.LayoutHints, boxes []tomo
 	}
 }
 
+func (this *scrollContainerLayout) RecommendedHeight (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
+func (this *scrollContainerLayout) RecommendedWidth (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
 func max (x, y int) int {
 	if x > y { return x }
 	return y

slider.go

@@ -238,3 +238,11 @@ func (this sliderLayout) Arrange (hints tomo.LayoutHints, boxes []tomo.Box) {
 			Add(gutter.Min))
 	}
 }
+
+func (this sliderLayout) RecommendedHeight (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
+func (this sliderLayout) RecommendedWidth (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}