I am a kind of ScrollController that assumes that the view is a kind of ListView. Therefore, scrolling means moving the items in a textual list (menu) up or down. In addition, I provide the red button activity of determining when the red button is selecting an item in the list.

	marker adjustment
	computeMarkerRegion markerDelta

	menu messages
	processKeyboard

	private
	changeModelSelection:

	scrolling
	scrollAmount scrollView: viewDelta

	selecting
	redButtonActivity

	control defaults	top
	controlActivity Refer to the comment in Controller|controlActivity.

	marker adjustment	top
	computeMarkerRegion Refer to the comment in ScrollController|computeMarkerRegion.
	markerDelta

	menu messages	top
	processKeyboard Derived from a Martin Pammer submission, 02/98

	private	top
	changeModelSelection:

	scrolling	top
	scrollAmount Refer to the comment in ScrollController|scrollAmount.
	scrollView: Scroll the view and highlight the selection if it just came into view
	viewDelta Refer to the comment in ScrollController|viewDelta.

	selecting	top
	redButtonActivity Determine which item in the red button pop-up menu is selected. If one is selected, then send the corresponding message to the object designated as the menu message receiver.