Application: gvSIG desktop

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

import java.awt.image.BufferedImage;

import java.util.ArrayList;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.fmap.geom.primitive.Envelope;

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

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

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

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

import org.gvsig.raster.lib.buffer.api.exceptions.BandException;

import org.gvsig.raster.lib.buffer.impl.exceptions.CreateBufferException;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.DisposeUtils;

import org.gvsig.tools.exception.BaseException;

/**

 * This is like a view over a raster buffer.

 * It's for rendering purposes only.

 *

 * @author fdiaz

 *

 */

public class ConvertedTypeBuffer extends AbstractBuffer implements Buffer {

    protected static final Logger logger = LoggerFactory.getLogger(ConvertedTypeBuffer.class);

    Buffer buffer;

    int type;

    /**

     * @param buffer

     * @param envelope

     * @throws CreateBufferException

     */

    public ConvertedTypeBuffer(Buffer buffer, int type) throws CreateBufferException {

        ToolsLocator.getDisposableManager().bind(buffer);

        this.buffer = buffer;

        this.type = type;

        this.projection = buffer.getProjection();

        this.dimensions = buffer.getDimensions();

        this.bands = new ArrayList<Band>();

        try {

            createBands(this.buffer.getBands(), this.type);

        } catch (Exception e) {

            throw new CreateBufferException(e);

        }

    }

    private void createBands(Band[] bands, int type) throws BandException {

        BufferManager bufferManager = BufferLocator.getBufferManager();

        for (int i = 0; i < bands.length; i++) {

            Band band = bufferManager.createConvertedTypeBand(this, bands[i], type);

            this.bands.add(band);

            band.addObserver(this);

        }

    }

    @Override

    public void doDispose() throws BaseException {

        super.doDispose();

        DisposeUtils.dispose(buffer);

        buffer=null;

    }

    @Override

    public BufferedImage getBufferedImage() {

        return null;

    }

}