private void writeObject(ObjectOutputStream out) throws IOException {
		ImageLoader imageLoader = new ImageLoader();
		imageLoader.data = new ImageData[] { data };
		ByteArrayOutputStream stream = new ByteArrayOutputStream();
		imageLoader.save(stream, SWT.IMAGE_PNG);
		byte[] bytes = stream.toByteArray();
		out.writeInt(bytes.length);
		out.write(bytes);
	}

	private void readObject(ObjectInputStream in) throws IOException,
			ClassNotFoundException {
		int length = in.readInt();
		byte[] buffer = new byte[length];
		in.readFully(buffer);
		ImageLoader imageLoader = new ImageLoader();
		ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
		ImageData[] data = imageLoader.load(stream);
		this.data = data[0];
	}