@Override
		public void focusGained(FocusEvent e) {
			inFocus = true;
			paintContext.setCursorFocused(true);
			cursorHandler.focusGained();
			repaint();
		}
Notifies all listeners that the selection changed.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/FieldPanel.java