/*
* $RCSfile: BorderRIF.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:56:16 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.opimage;
import java.awt.RenderingHints;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.ParameterBlock;
import java.awt.image.renderable.RenderedImageFactory;
import com.lightcrafts.mediax.jai.BorderExtender;
import com.lightcrafts.mediax.jai.ImageLayout;
/**
* A <code>RIF</code> supporting the "border" operation in the
* rendered image layer.
*
* @see java.awt.image.renderable.RenderedImageFactory
* @see com.lightcrafts.mediax.jai.operator.BorderDescriptor
* @see BorderOpImage
*
*/
public class BorderRIF implements RenderedImageFactory {
/** Constructor. */
public BorderRIF() {}
/**
* Creates a new instance of <code>BorderOpImage</code>
* in the rendered layer.
*
* @param args The source image and the border information
* @param hints Optionally contains destination image layout.
*/
public RenderedImage create(ParameterBlock args,
RenderingHints renderHints) {
// Get ImageLayout from renderHints if any.
ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
RenderedImage source = args.getRenderedSource(0);
int leftPad = args.getIntParameter(0);
int rightPad = args.getIntParameter(1);
int topPad = args.getIntParameter(2);
int bottomPad = args.getIntParameter(3);
BorderExtender type =
(BorderExtender)args.getObjectParameter(4);
if (type ==
BorderExtender.createInstance(BorderExtender.BORDER_WRAP)) {
int minX = source.getMinX() - leftPad;
int minY = source.getMinY() - topPad;
int width = source.getWidth() + leftPad + rightPad;
int height = source.getHeight() + topPad + bottomPad;
return new PatternOpImage(source.getData(),
source.getColorModel(),
minX, minY,
width, height);
} else {
return new BorderOpImage(source, renderHints, layout,
leftPad, rightPad, topPad, bottomPad,
type);
}
}
}