private static synchronized void putSizesAndIndexes(Object parComp, int[] sizes, int[] ixArr, boolean isRows)
	{
		if (PARENT_ROWCOL_SIZES_MAP == null)    // Lazy since only if designing in IDEs
			PARENT_ROWCOL_SIZES_MAP = new WeakHashMap[] {new WeakHashMap(4), new WeakHashMap(4)};

		PARENT_ROWCOL_SIZES_MAP[isRows ? 0 : 1].put(parComp, new int[][] {ixArr, sizes});
	}