Application: gvSIG desktop

package org.gvsig.raster.lib.buffer.impl;

import java.awt.image.Raster;

import java.io.IOException;

import java.nio.Buffer;

import java.nio.ByteBuffer;

import java.nio.ShortBuffer;

import org.gvsig.raster.lib.buffer.api.BandInfo;

import org.gvsig.raster.lib.buffer.api.BandPageManager;

import org.gvsig.raster.lib.buffer.api.BufferManager;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.Disposable;

import org.gvsig.tools.dispose.DisposeUtils;

import org.gvsig.tools.dispose.impl.AbstractDisposable;

import org.gvsig.tools.exception.BaseException;

/**

 * @author fdiaz

 *

 */

public class AwtRasterBandPageManager extends AbstractDisposable implements BandPageManager {

    private Raster img;

    private int band;

    /**

     * @param img

     * @param band

     * @throws IOException

     */

    public AwtRasterBandPageManager(Raster img, int band) {

        this.img = img;

        this.band = band;

//        DisposeUtils.bind(this);

    }

    @Override

    public void load(Buffer buffer, int row, int rows, int dataType) throws IOException {

        buffer.rewind();

        int columns = img.getWidth();

        switch (dataType) {

        case BufferManager.TYPE_BYTE:

            int[] intArray = new int[buffer.capacity()];

            img.getSamples(0, row, columns, rows, band, intArray);// buffer.array());

            for( int cell =0 ; cell<intArray.length ; cell++ ) {

                ((ByteBuffer) buffer).put((int)(cell), (byte)intArray[cell]);

            }

            break;

        case BufferManager.TYPE_SHORT:

        case BufferManager.TYPE_USHORT:

            intArray = new int[buffer.capacity()];

            img.getSamples(row, 0, columns, rows, band, intArray);// buffer.array());

            for( int cell =0 ; cell<intArray.length ; cell++ ) {

                ((ShortBuffer) buffer).put((int)(cell), (short)intArray[cell]);

            }

            break;

        case BufferManager.TYPE_INT:

            img.getSamples(row, 0, columns, rows, band, (int[])(buffer.array()));

            break;

        case BufferManager.TYPE_FLOAT:

            img.getSamples(row, 0, columns, rows, band, (float[])(buffer.array()));

            break;

        case BufferManager.TYPE_DOUBLE:

            img.getSamples(row, 0, columns, rows, band, (double[])(buffer.array()));

            break;

        default:

            throw new IllegalArgumentException("Data Type " + dataType + " not supported.");

        }

    }

    @Override

    public void save(Buffer buffer, int row, int rows, int dataType) throws IOException {

        //Do nothing

    }

    @Override

    public boolean isSupportedSave() {

        return false;

    }

    @Override

    public BandInfo getBandInfo() {

        return null;

    }

//    @Override

//    public void dispose() {

//        if ( ToolsLocator.getDisposableManager().release(this) ) {

//            this.img = null;

//        }

//    }

    @Override

    protected void doDispose() throws BaseException {

            this.img = null;

    }

}