Un-export SliderHandle

Closes #8

scrollbar.go

@@ -9,7 +9,7 @@ import "git.tebibyte.media/tomo/tomo/event"
 // overflowing ContainerBox.
 type Scrollbar struct {
 	tomo.ContainerBox
-	handle     *SliderHandle
+	handle     *sliderHandle
 	layout     scrollbarLayout
 	dragging   bool
 	dragOffset image.Point
@@ -24,7 +24,7 @@ type Scrollbar struct {
 func newScrollbar (orient string) *Scrollbar {
 	this := &Scrollbar {
 		ContainerBox: tomo.NewContainerBox(),
-		handle: &SliderHandle {
+		handle: &sliderHandle {
 			Box: tomo.NewBox(),
 		},
 		layout: scrollbarLayout {

slider.go

@@ -9,7 +9,7 @@ import "git.tebibyte.media/tomo/tomo/event"
 // Slider is a control that selects a numeric value between 0 and 1.
 type Slider struct {
 	tomo.ContainerBox
-	handle     *SliderHandle
+	handle     *sliderHandle
 	layout     sliderLayout
 	dragging   bool
 	dragOffset image.Point
@@ -21,16 +21,14 @@ type Slider struct {
 	}
 }
 
-// SliderHandle is a simple object that serves as a handle for sliders and
-// scrollbars. It is completely inert.
-type SliderHandle struct {
+type sliderHandle struct {
 	tomo.Box
 }
 
 func newSlider (orient string, value float64) *Slider {
 	this := &Slider {
 		ContainerBox: tomo.NewContainerBox(),
-		handle: &SliderHandle {
+		handle: &sliderHandle {
 			Box: tomo.NewBox(),
 		},
 		layout: sliderLayout {