1. /*

  2.  * @(#)RenderedImageFactory.java	1.6 01/11/29

  3.  *

  4.  * Copyright 2002 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. /* ********************************************************************

  9.  **********************************************************************

  10.  **********************************************************************

  11.  *** COPYRIGHT (c) Eastman Kodak Company, 1997                      ***

  12.  *** As  an unpublished  work pursuant to Title 17 of the United    ***

  13.  *** States Code.  All rights reserved.                             ***

  14.  **********************************************************************

  15.  **********************************************************************

  16.  **********************************************************************/

  17. 

  18. package java.awt.image.renderable;

  19. import java.awt.image.RenderedImage;

  20. import java.awt.RenderingHints;

  21. 

  22. /**

  23.  * The RenderedImageFactory interface (often abbreviated RIF) is

  24.  * intended to be implemented by classes that wish to act as factories

  25.  * to produce different renderings, for example by executing a series

  26.  * of BufferedImageOps on a set of sources, depending on a specific

  27.  * set of parameters, properties, and rendering hints.

  28.  */

  29. public interface RenderedImageFactory {

  30. 

  31.   /**

  32.    * Creates a RenderedImage representing the results of an imaging

  33.    * operation (or chain of operations) for a given ParameterBlock and

  34.    * RenderingHints.  The RIF may also query any source images

  35.    * referenced by the ParameterBlock for their dimensions,

  36.    * SampleModels, properties, etc., as necessary.

  37.    *

  38.    * <p> The create() method can return null if the

  39.    * RenderedImageFactory is not capable of producing output for the

  40.    * given set of source images and parameters.  For example, if a

  41.    * RenderedImageFactory is only capable of performing a 3x3

  42.    * convolution on single-banded image data, and the source image has

  43.    * multiple bands or the convolution Kernel is 5x5, null should be

  44.    * returned.

  45.    *

  46.    * <p> Hints should be taken into account, but can be ignored.

  47.    * The created RenderedImage may have a property identified

  48.    * by the String HINTS_OBSERVED to indicate which RenderingHints

  49.    * were used to create the image.  In addition any RenderedImages

  50.    * that are obtained via the getSources() method on the created

  51.    * RenderedImage may have such a property.

  52.    *  

  53.    * @param paramBlock a ParameterBlock containing sources and parameters

  54.    *        for the RenderedImage to be created.

  55.    * @param hints a RenderingHints object containing hints.

  56.    * @return A RenderedImage containing the desired output.

  57.    */

  58.   RenderedImage create(ParameterBlock paramBlock, 

  59.                        RenderingHints hints);

  60. }