@Override
	public void fieldLocationChanged(FieldLocation loc, Field field, EventTrigger trigger) {
		fieldLocationChanged(loc, field, false, trigger == EventTrigger.GUI_ACTION);
	}
Called from the parent FieldPanel whenever the cursor position changes.
Ghidra/Features/ByteViewer/src/main/java/ghidra/app/plugin/core/byteviewer/ByteViewerComponent.java