SWT byte[]与Image的相互转换

1. 从byte[]得到Image

	private static Image createImage(byte[] imageBytes) {
		Image image = null;
		try {
			ByteArrayInputStream bais = new ByteArrayInputStream(imageBytes);
			image = new Image(null, bais);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return image;
	}

2. 从Image得到byte[]

	public static byte[] getImageBytes(Image image) throws Exception {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		
		ImageLoader imageLoader = new ImageLoader();
		imageLoader.data = new ImageData[] { image.getImageData() };
		imageLoader.save(baos, image.type);
		
		byte[] imageByteArray = baos.toByteArray();
		try {
			baos.close();
		} catch (Exception e) {
			e.printStackTrace();
		}

		return imageByteArray;
	}