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Java Source | 1998-03-20 | 3.3 KB | 86 lines |
- /*
- * @(#)BufferedImageOp.java 1.17 98/03/18
- *
- * Copyright 1997 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * All rights reserved.
- *
- * This software is the confidential and proprietary information
- * of Sun Microsystems, Inc. ("Confidential Information"). You
- * shall not disclose such Confidential Information and shall use
- * it only in accordance with the terms of the license agreement
- * you entered into with Sun.
- */
-
- package java.awt.image;
-
- import java.awt.geom.Rectangle2D;
- import java.awt.geom.Point2D;
-
- /**
- * This is an interface that describes single-input/single-output
- * operations performed on BufferedImage objects.
- * This is implemented by such classes as AffineTransformOp, ConvolveOp,
- * BandCombineOp, and LookupOp. These objects can be passed into
- * a BufferedImageFilter to operate on a BufferedImage in the
- * ImageProducer-ImageFilter-ImageConsumer paradigm.
- * This interface cannot be used to describe more sophisticated Ops
- * such as ones that take multiple sources. Each class implementing this
- * interface will specify whether or not it will allow an in-place filtering
- * operation (i.e. source object equal to the destination object). Note
- * that the restriction to single-input operations means that the
- * values of destination pixels prior to the operation are not used
- * as input to the filter operation.
- * @see BufferedImage
- * @see BufferedImageFilter
- * @see AffineTransformOp
- * @see BandCombineOp
- * @see ColorConvertOp
- * @see ConvolveOp
- * @see LookupOp
- * @see RescaleOp
- * @see ThresholdOp
- * @version 10 Feb 1997
- */
- public interface BufferedImageOp {
- /**
- * Perform a single-input/single-output operation on a BufferedImage.
- * If the color models for the two images do not match, a color
- * conversion into the destination color model will be performed.
- * If the destination image is null,
- * a BufferedImage with an appropriate ColorModel will be created.
- * The IllegalArgumentException may be thrown if the source and/or
- * destination image is incompatible with the types of images allowed
- * by the subclass implementing this filter.
- */
- public BufferedImage filter(BufferedImage src, BufferedImage dest);
-
- /**
- * Returns the bounding box of the filtered destination image.
- * The IllegalArgumentException may be thrown if the source
- * image is incompatible with the types of images allowed
- * by the subclass implementing this filter.
- */
- public Rectangle2D getDestBounds (BufferedImage src);
-
- /**
- * Creates an empty destination image with the correct size and number of
- * components.
- * The IllegalArgumentException may be thrown if the source
- * image is incompatible with the types of images allowed
- * by the subclass implementing this filter.
- * @param src Source image for the filter operation
- * @param destCM ColorModel of the destination. If null, the
- * ColorModel of the source will be used.
- */
- public BufferedImage createCompatibleDestImage (BufferedImage src,
- ColorModel destCM);
-
- /**
- * Returns the location of the destination point given a
- * point in the source image. If dstPt is non-null, it
- * will be used to hold the return value.
- */
- public Point2D getDestPoint (Point2D srcPt, Point2D dstPt);
- }
-