Changelistener for BufferedImage

Question

Is there a way to track changes in the pixel data of a BufferdImage? I was thinking about something like that:

PixelChangeListener listener = new PixelChangeListener() {
public void pixelchange(Event e) {
    // Get the coordinates in the Image that have been changed:
    int x=e.getX();
    int y=e.getY();
}
};
buffimage.addPixelChangeListener(listener);

If i now use g.drawLine or buffimage.setRGB(x,y,rgb); pixelchange(e) should fire.
Is there a way to do that? :)

Answer 1

There isn't such a listener. But you could extend BufferedImage and add the APIs you need.

Answer 2

This is the solution from the OP (which was originally posted right in the question).

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Not the BufferedImage itself but the WritableRaster behind it had to be modified. You can use sun.awt.image.SunWritableRaster for that, just use the notifychanged() method to track pixelchanges. To get a proper BufferedImage with the Raster I used this code:

ColorModel colormodel=ColorModel.getRGBdefault();
WritableRaster temp=colormodel.createCompatibleWritableRaster(400,400);
SunWritableRaster raster=new SunWritableRaster(temp.getSampleModel(),temp.getDataBuffer(),new Point(0,0));
BufferedImage img=new BufferedImage(colormodel,raster,true,null);