Re: How to have a RenderedDynamicImageResource with transparent background?

[Joseph Fan <jo...@gmail.com>]

Hi Reinhard,

    I have met the same problem with you in your post in 2009 , I want to
know how you solved this problems. 
    I use the following statements to make the image looks transparent. but
unfortunately, the background is solid black, and hide the other background
image. 

add(new Image("dynamic", new RenderedDynamicImageResource(100, 100) {
			@Override
			protected boolean render(Graphics2D graphics, Attributes attrs) {
				// TODO Auto-generated method stub
				//setType(BufferedImage.TYPE_4BYTE_ABGR);
				graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR,
0.0f));
				Rectangle2D.Double rect = new Rectangle2D.Double(0, 0, 100, 100);
				graphics.fill(rect);
				graphics.setColor(Color.RED);
				graphics.drawString("测试", 10, 10);
				return true;
			}
		}));

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