private AnchoredLayout findLayoutOnScreen(BigInteger index) {
		for (AnchoredLayout layout : layouts) {
			if (layout.getIndex().equals(index)) {
				return layout;
			}
		}
		return null;

	}
Returns the offset of the cursor from the top of the screen

@return the offset of the cursor from the top of the screen
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/FieldPanel.java