Added ScrollContainer

scrollbar.go

@@ -278,7 +278,13 @@ func (this scrollbarLayout) Arrange (hints tomo.LayoutHints, boxes []tomo.Box) {
 	// calculate handle length
 	handleLength := gutterLength * this.viewportContentRatio()
 	if handleLength < handleMin { handleLength = handleMin }
-	if handleLength > gutterLength { handleLength = gutterLength }
+	if handleLength >= gutterLength {
+		// just hide the handle if it isn't needed.
+		// TODO: we need a way to hide and show boxes, this is janky as
+		// fuck
+		boxes[0].SetBounds(image.Rect(-16, -16, 0, 0))
+		return
+	}
 	if this.vertical {
 		handle.Max.Y = int(handleLength)
 	} else {