@Override
		public void mouseMoved(MouseEvent e) {
			switch (getRegion(e)) {
				case REGION_E:
					content.setCursor(Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR));
					break;
				case REGION_S:
					content.setCursor(Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR));
					break;
				case REGION_SE:
					content.setCursor(Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR));
					break;
				default:
					content.setCursor(null);
			}
		}
A mouse listener that resizes the auto-completion list window
Ghidra/Framework/Docking/src/main/java/docking/widgets/autocomplete/TextFieldAutocompleter.java