private String getTip() {
			if (unallocated) {
				return "<padding>";
			}
			if (dtc == null) {
				return null;
			}
			String name = dtc.getFieldName();
			return dtc.getDataType().getDisplayName() + (name != null ? (" " + name) : "");
		}
Layout the position of this displayed bit (i.e., Rectangle information)
@param x the  specified X coordinate
@param y the  specified Y coordinate
@param width  the width of the {@code Rectangle}
@param height the height of the {@code Rectangle}
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/BitFieldPlacementComponent.java