java.awt.image

Interface RasterOp

Known Implementing Classes:
AffineTransformOp, BandCombineOp, ColorConvertOp, ComponentDataBlitOp, ConvolveOp, LookupOp, RescaleOp

public interface RasterOp

An operation that is performed on one raster (the source) producing a new raster (the destination).

Method Summary

WritableRaster
createCompatibleDestRaster(Raster src)
Returns a raster that can be used by this RasterOp as the destination raster when operating on the specified source raster.
WritableRaster
filter(Raster src, WritableRaster dest)
Performs an operation on the source raster, returning the result in a writable raster.
Rectangle2D
getBounds2D(Raster src)
Returns the bounds of the destination raster on the basis of this RasterOp being applied to the specified source raster.
Point2D
getPoint2D(Point2D srcPoint, Point2D destPoint)
Returns the point on the destination raster that corresponds to the given point on the source raster.
RenderingHints
getRenderingHints()
Returns the rendering hints for this operation.

Method Details

createCompatibleDestRaster

public WritableRaster createCompatibleDestRaster(Raster src)
Returns a raster that can be used by this RasterOp as the destination raster when operating on the specified source raster.
Parameters:
src - the source raster.
Returns:
A new writable raster that can be used as the destination raster.

filter

public WritableRaster filter(Raster src,
                             WritableRaster dest)
Performs an operation on the source raster, returning the result in a writable raster. If dest is null, a new WritableRaster will be created by calling the createCompatibleDestRaster(Raster) method. If dest is not null, the result is written to dest then returned (this avoids creating a new WritableRaster each time this method is called).
Parameters:
src - the source raster.
dest - the destination raster (null permitted).
Returns:
The filtered raster.

getBounds2D

public Rectangle2D getBounds2D(Raster src)
Returns the bounds of the destination raster on the basis of this RasterOp being applied to the specified source raster.
Parameters:
src - the source raster.
Returns:
The destination bounds.

getPoint2D

public Point2D getPoint2D(Point2D srcPoint,
                          Point2D destPoint)
Returns the point on the destination raster that corresponds to the given point on the source raster.
Parameters:
srcPoint - the source point.
destPoint - the destination point (null permitted).
Returns:
The destination point.

getRenderingHints

public RenderingHints getRenderingHints()
Returns the rendering hints for this operation.
Returns:
The rendering hints.

RasterOp.java -- Copyright (C) 2000, 2002, 2004, 2005, 2006, Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.