 
 class TimelineTableRowView : NSTableRowView {
 
-	var cellAppearance: TimelineCellAppearance! {
-		didSet {
-			if cellAppearance != oldValue {
-				invalidateGridRect()
-			}
-		}
-	}
-
-//	override var interiorBackgroundStyle: NSBackgroundStyle {
-//		return .Light
-//	}
-
 	private var cellView: TimelineTableCellView? {
 		for oneSubview in subviews {
 			if let foundView = oneSubview as? TimelineTableCellView {


	override var isSelected: Bool {
		didSet {
			if let cellView = cellView {
				cellView.isSelected = isSelected
			}
		}
	}

	var gridRect: NSRect {
		return NSMakeRect(0.0, NSMaxY(bounds) - 1.0, NSWidth(bounds), 1)
	}

	override func drawSeparator(in dirtyRect: NSRect) {

		let path = NSBezierPath()
		let originX = floor(cellAppearance.boxLeftMargin) + 2.0
		let destinationX = ceil(NSMaxX(bounds))
		let y = floor(NSMaxY(bounds)) - 0.5
		path.move(to: NSPoint(x: originX, y: y))
		path.line(to: NSPoint(x: destinationX, y: y))

		cellAppearance.gridColor.set()
		path.stroke()
	}

	override func draw(_ dirtyRect: NSRect) {

		super.draw(dirtyRect)

		if cellAppearance.drawsGrid && !isSelected && !isNextRowSelected {
			drawSeparator(in: dirtyRect)
		}
	}

	func invalidateGridRect() {
		
		setNeedsDisplay(gridRect)
	}
}


	override var isEmphasized: Bool {
		didSet {
			if #available(macOS 10.14, *) {
				return
			}
			if let cellView = cellView {
				cellView.isEmphasized = isEmphasized
			}
