public void moveViewportToTop() {
		Point topPoint = new Point(0, 0);
		viewport.setViewPosition(topPoint);

		FVEvent updateViewportEvt = new FVEvent(EventType.VIEWPORT_UPDATE, null);
		eventListener.send(updateViewportEvt);
	}
Snaps the viewport to the top of the table.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/logviewer/ui/ViewportUtility.java