public RenderableImageProducer(RenderableImage rdblImage,
    RenderContext rc) 
{
                                    
        this.rdblImage = rdblImage;
        this.rc = rc;
}

Constructs a new RenderableImageProducer from a RenderableImage and a RenderContext.

Parameters:

rdblImage - the RenderableImage to be rendered.

rc - the RenderContext to use for producing the pixels.

 public synchronized  void addConsumer(ImageConsumer ic) 
{
        if (!ics.contains(ic)) {
            ics.addElement(ic);
        }
}

Adds an ImageConsumer to the list of consumers interested in data for this image.

 public synchronized boolean isConsumer(ImageConsumer ic) 
{
        return ics.contains(ic);
}

Determine if an ImageConsumer is on the list of consumers currently interested in data for this image.

 public synchronized  void removeConsumer(ImageConsumer ic) 
{
        ics.removeElement(ic);
}

Remove an ImageConsumer from the list of consumers interested in data for this image.

 public  void requestTopDownLeftRightResend(ImageConsumer ic) 
{
        // So far, all pixels are already sent in TDLR order
}

Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.

 public  void run() 
{
        // First get the rendered image
        RenderedImage rdrdImage;
        if (rc != null) {
            rdrdImage = rdblImage.createRendering(rc);
        } else {
            rdrdImage = rdblImage.createDefaultRendering();
        }
        // And its ColorModel
        ColorModel colorModel = rdrdImage.getColorModel();
        Raster raster = rdrdImage.getData();
        SampleModel sampleModel = raster.getSampleModel();
        DataBuffer dataBuffer = raster.getDataBuffer();
        if (colorModel == null) {
            colorModel = ColorModel.getRGBdefault();
        }
        int minX = raster.getMinX();
        int minY = raster.getMinY();
        int width = raster.getWidth();
        int height = raster.getHeight();
        Enumeration icList;
        ImageConsumer ic;
        // Set up the ImageConsumers
        icList = ics.elements();
        while (icList.hasMoreElements()) {
            ic = (ImageConsumer)icList.nextElement();
            ic.setDimensions(width,height);
            ic.setHints(ImageConsumer.TOPDOWNLEFTRIGHT |
                        ImageConsumer.COMPLETESCANLINES |
                        ImageConsumer.SINGLEPASS |
                        ImageConsumer.SINGLEFRAME);
        }
        // Get RGB pixels from the raster scanline by scanline and
        // send to consumers.
        int pix[] = new int[width];
        int i,j;
        int numBands = sampleModel.getNumBands();
        int tmpPixel[] = new int[numBands];
        for (j = 0; j <  height; j++) {
            for(i = 0; i <  width; i++) {
                sampleModel.getPixel(i, j, tmpPixel, dataBuffer);
                pix[i] = colorModel.getDataElement(tmpPixel, 0);
            }
            // Now send the scanline to the Consumers
            icList = ics.elements();
            while (icList.hasMoreElements()) {
                ic = (ImageConsumer)icList.nextElement();
                ic.setPixels(0, j, width, 1, colorModel, pix, 0, width);
            }
        }
        // Now tell the consumers we're done.
        icList = ics.elements();
        while (icList.hasMoreElements()) {
            ic = (ImageConsumer)icList.nextElement();
            ic.imageComplete(ImageConsumer.STATICIMAGEDONE);
        }
}

The runnable method for this class. This will produce an image using the current RenderableImage and RenderContext and send it to all the ImageConsumer currently registered with this class.

 public synchronized  void setRenderContext(RenderContext rc) 
{
        this.rc = rc;
}

Sets a new RenderContext to use for the next startProduction() call.

 public synchronized  void startProduction(ImageConsumer ic) 
{
        addConsumer(ic);
        // Need to build a runnable object for the Thread.
        Thread thread = new Thread(this, "RenderableImageProducer Thread");
        thread.start();
}

Adds an ImageConsumer to the list of consumers interested in data for this image, and immediately starts delivery of the image data through the ImageConsumer interface.