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Provides a single jar containing all JAI-tools modules which you can use instead of including individual modules in your project. Note: It does not include the Jiffle scripting language or Jiffle image operator.

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/*
 * Copyright 2009 Michael Bedward
 * 
 * This file is part of jai-tools.

 * jai-tools is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.

 * jai-tools 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 Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public 
 * License along with jai-tools.  If not, see .
 * 
 */

package jaitools.media.jai.regionalize;

import com.sun.media.jai.opimage.RIFUtil;
import java.awt.RenderingHints;
import java.awt.image.ComponentSampleModel;
import java.awt.image.DataBuffer;
import java.awt.image.RenderedImage;
import java.awt.image.SampleModel;
import java.awt.image.renderable.ParameterBlock;
import java.awt.image.renderable.RenderedImageFactory;
import javax.media.jai.BorderExtender;
import javax.media.jai.ImageLayout;
import javax.media.jai.JAI;

/**
 * The image factory for the Regionalize operation.
 *
 * @see RegionalizeDescriptor
 * @see RegionData
 * 
 * @author Michael Bedward
 * @since 1.0
 * @version $Id: RegionalizeRIF.java 1383 2011-02-10 11:22:29Z michael.bedward $
 */
public class RegionalizeRIF implements RenderedImageFactory {

    /** Constructor */
    public RegionalizeRIF() {
    }

    /**
     * Create a new instance of RegionalizeOpImage in the rendered layer.
     *
     * @param paramBlock specifies the source image and the parameter
     * "kernel"
     * @param renderHints useful to specify a {@link BorderExtender} and
     * {@link ImageLayout}
     */
    public RenderedImage create(ParameterBlock paramBlock,
            RenderingHints renderHints) {

        RenderedImage src = paramBlock.getRenderedSource(0);
        ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);

        if (layout == null) {
            layout = new ImageLayout();
        }

        int tileWidth = layout.getTileWidth(null);
        if (tileWidth == 0) {
            tileWidth = JAI.getDefaultTileSize().width;
        }

        int tileHeight = layout.getTileHeight(null);
        if (tileHeight == 0) {
            tileHeight = JAI.getDefaultTileSize().height;
        }

        SampleModel sm = new ComponentSampleModel(
                DataBuffer.TYPE_INT, 
                tileWidth,
                tileHeight,
                1, tileWidth,  // pixel stride and scan-line stride
                new int[]{0});  // band offset

        layout.setSampleModel(sm);

        int band = paramBlock.getIntParameter(RegionalizeDescriptor.BAND_ARG_INDEX);
        double tolerance = paramBlock.getDoubleParameter(RegionalizeDescriptor.TOLERANCE_ARG_INDEX);
        boolean diagonal = (Boolean) paramBlock.getObjectParameter(RegionalizeDescriptor.DIAGONAL_ARG_INDEX);

        return new RegionalizeOpImage(src,
                renderHints,
                layout,
                band,
                tolerance,
                diagonal);
    }
}