@Override
	Rectangle getCursorBounds() {
		Rectangle cursorBounds = listingPanel.getCursorBounds();
		if (cursorBounds == null) {
			return null;
		}
		return SwingUtilities.convertRectangle(listingPanel, cursorBounds, this);
	}
Signals to rebuild this component's data model.  This call should not do any real work
if the model is not 'dirty'.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/ListingGraphComponentPanel.java