Better way of representing layout hints

object.go

@@ -181,8 +181,9 @@ type ContainerBox interface {
 
 // LayoutHints are passed to a layout to tell it how to arrange child boxes.
 type LayoutHints struct {
-	Min image.Point
-	Max *image.Point
+	Bounds image.Rectangle
+	OverflowX bool
+	OverflowY bool
 	Gap image.Point
 }