Examples of java.awt.image.WritableRenderedImage

java.awt.image.WritableRenderedImage
WriteableRenderedImage is a common interface for objects which contain or can produce image data in the form of Rasters and which can be modified and/or written over. The image data may be stored/produced as a single tile or a regular array of tiles.
WritableRenderedImage provides notification to other interested objects when a tile is checked out for writing (via the getWritableTile method) and when the last writer of a particular tile relinquishes its access (via a call to releaseWritableTile). Additionally, it allows any caller to determine whether any tiles are currently checked out (via hasTileWriters), and to obtain a list of such tiles (via getWritableTileIndices, in the form of a Vector of Point objects).
Objects wishing to be notified of changes in tile writability must implement the TileObserver interface, and are added by a call to addTileObserver. Multiple calls to addTileObserver for the same object will result in multiple notifications. An existing observer may reduce its notifications by calling removeTileObserver; if the observer had no notifications the operation is a no-op.
It is necessary for a WritableRenderedImage to ensure that notifications occur only when the first writer acquires a tile and the last writer releases it.

   * @param szFile the path of the file to save the image in. The
   * file suffix is used to determine the image type (JPEG or PNG).
   * Storage is in JPEG by default.
   */
  public void toFile(RgbImage rgb, String szFile) {
    WritableRenderedImage im = RgbImageJ2se.toImage(rgb);
    String szSuffix = "JPG";
    if (szFile.contains(".")) {
      int nSuffix = szFile.lastIndexOf('.');
      szSuffix = szFile.substring(nSuffix + 1);
    }

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    }
  }
  
  private static WritableRenderedImage toImage(RgbImage rgb) {
    WritableRenderedImage im = new BufferedImage(
        rgb.getWidth(), 
        rgb.getHeight(), 
        BufferedImage.TYPE_INT_RGB);
    DataBufferInt dbi = new DataBufferInt(
        rgb.getData(),
        rgb.getHeight() * rgb.getWidth());
    Raster r = Raster.createRaster(
        im.getSampleModel(),
        dbi, 
        null);
    im.setData(r);
    return im;
  }

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        this.source = source;
        //  Set image parameters to match the source


        //  Determine which tiles of the source image are writable
        if (source instanceof WritableRenderedImage) {
            WritableRenderedImage wri = (WritableRenderedImage)source;
            wri.addTileObserver(this);


            Point[] pts = wri.getWritableTileIndices();
            if (pts != null) {
                int num = pts.length;
                for (int i = 0; i < num; i++) {
                    //  Add these tiles to the active list
                    Point p = pts[i];

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRectIter allowing read/write access to the source.
     */
    public static WritableRectIter createWritable(WritableRaster ras,
                                                  Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRandomIter allowing read/write access to the source.
     */
    public static WritableRandomIter createWritable(WritableRaster ras,
                                                    Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRookIter allowing read/write access to the source.
     */
    public static WritableRookIter createWritable(WritableRaster ras,
                                                  Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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        this.source = source;
        //  Set image parameters to match the source


        //  Determine which tiles of the source image are writable
        if (source instanceof WritableRenderedImage) {
            WritableRenderedImage wri = (WritableRenderedImage)source;
            wri.addTileObserver(this);


            Point[] pts = wri.getWritableTileIndices();
            if (pts != null) {
                int num = pts.length;
                for (int i = 0; i < num; i++) {
                    //  Add these tiles to the active list
                    Point p = pts[i];

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRandomIter allowing read/write access to the source.
     */
    public static WritableRandomIter createWritable(WritableRaster ras,
                                                    Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRookIter allowing read/write access to the source.
     */
    public static WritableRookIter createWritable(WritableRaster ras,
                                                  Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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     * @param bounds the bounding Rectangle for the iterator, or null.
     * @return a WritableRectIter allowing read/write access to the source.
     */
    public static WritableRectIter createWritable(WritableRaster ras,
                                                  Rectangle bounds) {
        WritableRenderedImage im = new WrapperWRI(ras);
        return createWritable(im, bounds);
    }

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