root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / io / ErmapperWriter.java @ 12567
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.dataset.io; |
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import java.io.IOException; |
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import org.cresques.cts.IProjection; |
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import org.cresques.io.GeoRasterFile; |
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import org.gvsig.raster.dataset.GeoRasterWriter; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.IDataWriter; |
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import org.gvsig.raster.dataset.Params; |
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import org.gvsig.raster.dataset.Params.Param; |
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import org.gvsig.raster.dataset.io.features.WriteFileFormatFeatures; |
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import org.gvsig.raster.datastruct.Extent; |
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import org.gvsig.raster.util.RasterUtilities; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
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import es.gva.cit.jecwcompress.EcwException; |
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import es.gva.cit.jecwcompress.JniObject; |
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import es.gva.cit.jecwcompress.NCSEcwCompressClient; |
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import es.gva.cit.jecwcompress.ReadCallBack; |
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import es.gva.cit.jgdal.GdalRasterBand; |
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/**
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* Driver para la compresi?n en formato Ecw.
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*
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* Puede exportar un fichero desde un GeoRasterFile en cualquier formato soportado
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* por los drivers de lectura a uno en formato Ecw.
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*
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* Puede salvar a disco en formato Ecw obteniendo los datos que van siendo servidos
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* desde el cliente. Este cliente debe implementar un IDataWriter o tener un objeto
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* que lo implemente. Inicialmente le pasar? los par?metros de la imagen de salida
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* y cuando el driver comience a escribir le ir? solicitando m?s a trav?s del m?todo
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* readData de IDataWriter. El cliente ser? el que lleve el control de lo que va
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* sirviendo y lo que le queda por servir.
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class ErmapperWriter extends GeoRasterWriter { |
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public static void register() { |
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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WriteFileFormatFeatures features = null;
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String os = System.getProperties().getProperty("os.version"); |
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if (os.startsWith("2.4")){ |
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extensionPoints.add("RasterWriter", "ecw", ErmapperWriter.class); |
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features = new WriteFileFormatFeatures("Ecw", "ecw", -1, null, ErmapperWriter.class); |
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fileFeature.put("ecw", features);
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} |
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extensionPoints.add("RasterWriter", "jp2", ErmapperWriter.class); |
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features = new WriteFileFormatFeatures("Jpeg2000", "jp2", -1, null, ErmapperWriter.class); |
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fileFeature.put("jp2", features);
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} |
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public final int windowSizeX = 386; |
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public final int windowSizeY = 220; |
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public final int panelSizeX = 358; |
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public final int panelSizeY = 125; |
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public final String panelLayout = "BorderLayout"; |
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private NCSEcwCompressClient compressclient = null; |
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private Reader readerObj; |
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private double pixelSizeX; |
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private double pixelSizeY; |
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private double geoCoordOrigenX; |
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private double geoCoordOrigenY; |
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private boolean consulta = false; |
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/**
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* Carga los par?metros de este driver.
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*/
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public void loadParams() { |
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WriteFileFormatFeatures wfff = new WriteFileFormatFeatures();
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wfff.loadParams(); |
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driverParams = wfff.getParams(); |
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driverParams.setParam( "compression",
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"10",
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Params.SLIDER, |
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new String[]{ "0", "20", "10", "1", "5" }); //min, max, valor defecto, intervalo peque?o, intervalo grande; |
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driverParams.setParam( "format",
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"RGB",
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Params.CHOICE, |
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new String[]{ "NONE", "UINT8", "YUV", "MULTI", "RGB"}); |
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} |
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/**
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* Constructor para la obtenci?n de par?metros del driver.
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*/
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public ErmapperWriter(String fileName) { |
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ident = RasterUtilities.getExtensionFromFileName(fileName); |
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driver = ((WriteFileFormatFeatures)fileFeature.get(ident)).getDriverName(); |
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loadParams(); |
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consulta = true;
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} |
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/**
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* Constructor para la lectura de datos desde el objeto cliente a partir
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* de un viewport dado.
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* @param dataWriter Objeto que sirve datos para el escritor
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* @param vp viewport de origen
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* @param outFileName Fichero de salida
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* @param blockSize Tama?o de bloque
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* @param nBands N?mero de bandas
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* @param compresion Compresi?n
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* @throws EcwException
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* @throws IOException
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*/
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public ErmapperWriter( IDataWriter dataWriter,
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String outFileName,
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Integer nBands,
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Extent ex, |
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Integer outSizeX,
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Integer outSizeY,
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Integer dataType,
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Params params, |
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IProjection proj) throws EcwException, IOException { |
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this.proj = proj;
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ident = RasterUtilities.getExtensionFromFileName(outFileName); |
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driver = ((WriteFileFormatFeatures)fileFeature.get(ident)).getDriverName(); |
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this.dataType = dataType.intValue();
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if (nBands.intValue() <= 0) |
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throw new EcwException("N?mero de bandas erroneo."); |
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if ((ex.width() <= 0) || (ex.height() <= 0)) { |
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throw new EcwException("Tama?o de la imagen de salida erroneo."); |
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} |
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this.outFileName = outFileName;
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this.dataWriter = dataWriter;
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this.nBands = nBands.intValue();
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this.sizeWindowX = outSizeX.intValue();
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this.sizeWindowY = outSizeY.intValue();
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//Calculamos la georeferenciaci?n a partir del extend pasado por el cliente.
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double maxX = ex.maxX();
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geoCoordOrigenX = ex.minX(); |
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geoCoordOrigenY = ex.maxY(); |
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double minY = ex.minY();
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pixelSizeX = (maxX - geoCoordOrigenX) / outSizeX.intValue(); |
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pixelSizeY = (minY - geoCoordOrigenY) / outSizeY.intValue(); |
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if (pixelSizeX == 0) |
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pixelSizeX = 1.0;
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if (pixelSizeY == 0) |
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pixelSizeY = 1.0;
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if(params == null) |
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loadParams(); |
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else
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driverParams = params; |
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init(); |
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} |
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/**
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* Inicializaci?n de los par?metros del compresor que ser?n obtenidos
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* de PxRaster.
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* @throws EcwException
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*/
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private void init() throws EcwException { |
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percent = 0;
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int comp = new Integer((String) ((Param)driverParams.getParamById("compression")).defaultValue).intValue(); |
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String format = (String) ((Param)driverParams.getParamById("format")).defaultValue; |
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if ( comp == 0 ) |
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driverParams.changeParamValue("compression", "1"); |
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if (compressclient == null) |
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compressclient = new NCSEcwCompressClient();
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compressclient.setOutputFilename(outFileName); |
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compressclient.setInputFilename(inFileName); |
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compressclient.setTargetCompress(comp); |
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compressclient.setInOutSizeX(sizeWindowX); |
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compressclient.setInOutSizeY(sizeWindowY); |
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compressclient.setInputBands(nBands); |
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compressclient.setCompressFormat(convertFormatToInt(format)); |
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/* boolean georef = new Boolean(((Param)driverParams.getParamById("georef")).defaultValue).booleanValue();
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if (georef) {*/
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compressclient.setCellIncrementX(pixelSizeX); |
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compressclient.setCellIncrementY(pixelSizeY); |
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compressclient.setOriginX(geoCoordOrigenX); |
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compressclient.setOriginY(geoCoordOrigenY); |
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//}
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compressclient.setCellSizeUnits(1);
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int blocksize = new Integer((String) ((Param)driverParams.getParamById("blocksize")).defaultValue).intValue(); |
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if (dataWriter != null) { |
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readerObj = new Reader(dataWriter, compressclient, sizeWindowX, |
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sizeWindowY, blocksize, nBands, this, dataType);
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} |
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} |
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/**
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* Convierte la cadena que representa el formato en un valor n?merico
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* que entiende el driver.
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* @param format Cadena que representa el formato
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* @return Entero que representa a la cadena
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*/
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private int convertFormatToInt(String format) { |
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if(format.compareTo("NONE") == 0) |
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return 0; |
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if(format.compareTo("UINT8") == 0) |
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return 1; |
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if(format.compareTo("YUV") == 0) |
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return 2; |
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if(format.compareTo("MULTI") == 0) |
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return 3; |
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if(format.compareTo("RGB") == 0) |
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return 4; |
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return -1; |
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} |
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/**
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* A partir de un elemento que contiene una propiedad y un valor
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* lo parsea y asigna el valor a su variable.
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* @param propValue elemento con la forma propiedad=valor
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*/
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private void readProperty(String propValue) { |
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String prop = propValue.substring(0, propValue.indexOf("=")); |
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if (propValue.startsWith(prop)) {
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String value = propValue.substring(propValue.indexOf("=") + 1, propValue.length()); |
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if ((value != null) && !value.equals("")) { |
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if (prop.equals("BLOCKSIZE")) |
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driverParams.changeParamValue("blocksize", value);
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if (prop.equals("FORMAT")) |
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driverParams.changeParamValue("format", value);
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if (prop.equals("COMPRESSION")) |
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driverParams.changeParamValue("compression", value);
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} |
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} |
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} |
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/**
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* Asigna propiedades al driver a partir de un vector de
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* strings donde cada elemento tiene la estructura de
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* propiedad=valor.
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* @param props Propiedades
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*/
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public void setProps(String[] props) { |
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for (int iProps = 0; iProps < props.length; iProps++) |
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readProperty(props[iProps]); |
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loadParams(); |
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try {
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if (!consulta) {
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init(); |
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} |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
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* @throws IOException
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*/
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public void fileWrite() throws IOException { |
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/* try {
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compressclient.NCSEcwCompressOpen(false);
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compressclient.NCSEcwCompress(readerObj);
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} catch (EcwException e) {
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e.printStackTrace();
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}*/
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//TODO: FUNCIONALIDAD: Compresi?n a partir de un dataset. De momento no es necesario y es posible que nunca lo sea.
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} |
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/**
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* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
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* @throws IOException
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*/
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public void dataWrite() throws IOException { |
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if (dataWriter == null) { |
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throw new IOException("No se ha obtenido un objeto para la lectura valido."); |
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} |
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try {
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compressclient.NCSEcwCompressOpen(false);
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compressclient.NCSEcwCompress(readerObj); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Cierra el compresor ecw.
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*/
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public void writeClose() { |
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try {
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compressclient.NCSEcwCompressClose(); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Cancela el compresor ecw.
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*/
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public void writeCancel() { |
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try {
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if(readerObj != null) |
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readerObj.setWrite(false);
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compressclient.NCSEcwCompressCancel(); |
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} catch (EcwException e) {
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e.printStackTrace(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.GeoRasterWriter#setWkt(java.lang.String)
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*/
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public void setWkt(String wkt) { |
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//TODO: FUNCIONALIDAD: La asignaci?n de proyecci?n en Ecw falla haciendo petar la aplicaci?n.
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/*if(compressclient != null && wkt != null && wkt.compareTo("unknown") != 0) {
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WktUtils wktutil = new WktUtils(wkt);
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compressclient.setProjection("EPSG:" + wktutil.getEPSG());
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}*/
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} |
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} |
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/**
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* Clase que se encarga de la lectura de datos que ser?n escritos. Hereda de JniObject
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* para asegurar para asegurar que el interfaz de la libreria tiene acceso a variables
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* necesarias para la petici?n de datos cuando vacia el buffer. Implementa ReadCallBack
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* para obligar escribir el m?todo loadBuffer encargado de servir los datos cuando el
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* buffer se vacia.
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*
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*/
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class Reader extends JniObject implements ReadCallBack { |
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private NCSEcwCompressClient compressclient = null; |
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private int width; |
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private int height; |
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private int ulX; |
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private int ulY; |
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private GeoRasterFile grf = null; |
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private IDataWriter dataWriter = null; |
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private GdalRasterBand rband = null; |
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private GeoRasterWriter writer = null; |
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private int blockSizeRead = 1; //Alto del bloque leido de la imagen origen |
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private int countLine = 1; //Contador de l?neas procesadas en cada lectura de bloque |
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byte[][] buf = null; |
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byte[] bufband1 = null; |
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byte[] bufband2 = null; |
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byte[] bufband3 = null; |
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byte[] bufband4 = null; |
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byte[] bufband5 = null; |
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byte[] bufband6 = null; |
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int[] dataBuffer = null; |
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byte[][] byteBuffer = null; |
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private int lineasBloqueFinal = 0; //N?mero de l?neas leidas del bloque final |
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private int nBlocks = 0; //N?mero de bloques completos |
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private int countBlock = 1; //Contador de bloques completos procesados |
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private int nBands = 0; |
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private boolean write = true; //Cuando est? a true se puede escribir en la imagen de salida. Si est? a false el proceso es interrumpido |
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private int dataType = IBuffer.TYPE_BYTE; |
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/**
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* Constructor para la escritura de un fichero desde un GeoRasterFile
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* @param grf GeorasterFile del fichero de origen
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* @param compressclient Objeto que representa al compresor ecw
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* @param ulx Coordenada X de la esquina superior izquierda
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* @param uly Coordenada Y de la esquina superior izquierda
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* @param width Ancho de la imagen
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* @param height Alto de la imagen
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* @param blockSizeRead Altura del bloque en la lectura
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*/
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public Reader(GeoRasterFile grf, NCSEcwCompressClient compressclient, |
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int ulx, int uly, int width, int height, int blockSizeRead, int dataType) { |
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this.compressclient = compressclient;
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this.width = width;
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this.height = height;
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this.ulX = ulx;
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this.ulY = uly;
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this.grf = grf;
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this.nBands = grf.getBandCount();
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this.dataType = dataType;
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if (blockSizeRead != 0) { |
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this.blockSizeRead = blockSizeRead;
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} |
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nBlocks = (int) (height / this.blockSizeRead); |
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lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
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} |
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/**
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* Constructor para que los datos sean servidos desde el cliente a trav?s de un
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* IDataWriter.
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* @param dataWriter Objeto servidor de datos del driver
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* @param compressclient Objeto que representa al compresor ecw
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* @param width Ancho de la imagen
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* @param height Alto de la imagen
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* @param blockSizeRead Altura del bloque en la lectura
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* @param nBands N?mero de bandas
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*/
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public Reader(IDataWriter dataWriter, NCSEcwCompressClient compressclient, |
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int width, int height, int blockSizeRead, int nBands, |
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GeoRasterWriter writer, int dataType) {
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this.compressclient = compressclient;
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this.width = width;
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this.height = height;
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this.dataWriter = dataWriter;
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this.nBands = nBands;
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this.writer = writer;
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this.dataType = dataType;
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if (blockSizeRead != 0) { |
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this.blockSizeRead = blockSizeRead;
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} |
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nBlocks = (int) (height / this.blockSizeRead); |
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lineasBloqueFinal = height - (nBlocks * this.blockSizeRead);
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} |
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/**
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* Lectura de bandas desde un GeoRasterFile
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* @param ulX Coordenada X de la esquina superior izquierda
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* @param ulY Coordenada Y de la esquina superior izquierda
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* @param width Ancho de la imagen
|
| 452 |
* @param lineasLeidas N?mero de l?neas a leer del origen
|
| 453 |
*/
|
| 454 |
private void readBandsGRFile(int ulX, int ulY, int width, int lineasLeidas) { |
| 455 |
if (nBands >= 1) |
| 456 |
bufband1 = grf.getWindow(ulX, ulY, width, lineasLeidas, 1);
|
| 457 |
|
| 458 |
if (nBands >= 2) |
| 459 |
bufband2 = grf.getWindow(ulX, ulY, width, lineasLeidas, 2);
|
| 460 |
|
| 461 |
if (nBands >= 3) |
| 462 |
bufband3 = grf.getWindow(ulX, ulY, width, lineasLeidas, 3);
|
| 463 |
|
| 464 |
if (nBands >= 4) |
| 465 |
bufband4 = grf.getWindow(ulX, ulY, width, lineasLeidas, 4);
|
| 466 |
|
| 467 |
if (nBands >= 5) |
| 468 |
bufband5 = grf.getWindow(ulX, ulY, width, lineasLeidas, 5);
|
| 469 |
|
| 470 |
if (nBands >= 6) |
| 471 |
bufband6 = grf.getWindow(ulX, ulY, width, lineasLeidas, 6);
|
| 472 |
} |
| 473 |
|
| 474 |
/**
|
| 475 |
* Lectura de bandas llamando al objeto cliente para que nos cargue el buffer
|
| 476 |
* @param width Ancho de la imagen
|
| 477 |
* @param height Alto de la imagen
|
| 478 |
*/
|
| 479 |
private void readBands(int width, int height) { |
| 480 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 481 |
dataBuffer = dataWriter.readARGBData(width, height, 0);
|
| 482 |
if(dataType == IBuffer.TYPE_BYTE) {
|
| 483 |
byte[][] b = dataWriter.readByteData(width, height); |
| 484 |
|
| 485 |
} |
| 486 |
} |
| 487 |
|
| 488 |
/**
|
| 489 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 490 |
* compresor necesita que le sirvan m?s datos.
|
| 491 |
*/
|
| 492 |
public void loadBuffer() { |
| 493 |
int lineasLeidas = 0; |
| 494 |
|
| 495 |
//si se leen bloques completos lineasLeidas es == al tama?o de bloque sino
|
| 496 |
//es que es el ?ltimo con lo que ser? del tama?o del bloque final
|
| 497 |
if (countBlock <= nBlocks)
|
| 498 |
lineasLeidas = blockSizeRead; |
| 499 |
else
|
| 500 |
lineasLeidas = lineasBloqueFinal; |
| 501 |
|
| 502 |
//Leemos un bloque nuevo cuando se han procesado todas las l?neas del anterior
|
| 503 |
if ((nNextLine % blockSizeRead) == 0) { |
| 504 |
if (grf != null) |
| 505 |
readBandsGRFile(ulX, ulY + nNextLine, width, lineasLeidas); |
| 506 |
else if (dataWriter != null) { |
| 507 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 508 |
dataBuffer = dataWriter.readARGBData(width, lineasLeidas, 0);
|
| 509 |
if(dataType == IBuffer.TYPE_BYTE)
|
| 510 |
byteBuffer = dataWriter.readByteData(width, lineasLeidas); |
| 511 |
} |
| 512 |
|
| 513 |
countLine = 0;
|
| 514 |
countBlock++; |
| 515 |
} |
| 516 |
|
| 517 |
if(dataType == IBuffer.TYPE_IMAGE)
|
| 518 |
loadBufferFromImageDataType(dataBuffer); |
| 519 |
if(dataType == IBuffer.TYPE_BYTE)
|
| 520 |
loadBufferFromByteDataType(byteBuffer); |
| 521 |
|
| 522 |
/* for (int iBand = 0; iBand < this.nBands; iBand++) {
|
| 523 |
for (int pos = 0; pos < width; pos++) {
|
| 524 |
if (grf != null && write) {
|
| 525 |
if (iBand == 0)
|
| 526 |
compressclient.buffer[pos + (width * iBand)] =
|
| 527 |
bufband1[pos + (width * countLine)];
|
| 528 |
|
| 529 |
if (iBand == 1)
|
| 530 |
compressclient.buffer[pos + (width * iBand)] =
|
| 531 |
bufband2[pos + (width * countLine)];
|
| 532 |
|
| 533 |
if (iBand == 2)
|
| 534 |
compressclient.buffer[pos + (width * iBand)] =
|
| 535 |
bufband3[pos + (width * countLine)];
|
| 536 |
|
| 537 |
if (iBand == 3)
|
| 538 |
compressclient.buffer[pos + (width * iBand)] =
|
| 539 |
bufband4[pos + (width * countLine)];
|
| 540 |
|
| 541 |
if (iBand == 4)
|
| 542 |
compressclient.buffer[pos + (width * iBand)] =
|
| 543 |
bufband5[pos + (width * countLine)];
|
| 544 |
|
| 545 |
if (iBand == 5)
|
| 546 |
compressclient.buffer[pos + (width * iBand)] =
|
| 547 |
bufband6[pos + (width * countLine)];
|
| 548 |
|
| 549 |
} else {
|
| 550 |
if (iBand == 0)
|
| 551 |
compressclient.buffer[pos + (width * iBand)] =
|
| 552 |
(byte) ((dataBuffer[pos + (width * countLine)] & 0xff0000) >> 16);
|
| 553 |
|
| 554 |
|
| 555 |
if (iBand == 1)
|
| 556 |
compressclient.buffer[pos + (width * iBand)] =
|
| 557 |
(byte) ((dataBuffer[pos + (width * countLine)] & 0xff00) >> 8);
|
| 558 |
|
| 559 |
|
| 560 |
if (iBand == 2)
|
| 561 |
compressclient.buffer[pos + (width * iBand)] =
|
| 562 |
(byte) (dataBuffer[pos + (width * countLine)] & 0xff);
|
| 563 |
|
| 564 |
}
|
| 565 |
|
| 566 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) {
|
| 567 |
countLine++;
|
| 568 |
}
|
| 569 |
}
|
| 570 |
}*/
|
| 571 |
} |
| 572 |
|
| 573 |
/**
|
| 574 |
* Carga el buffer de datos desde elementos de tipo entero con contenido ARGB
|
| 575 |
* @param data Array de datos enteros
|
| 576 |
*/
|
| 577 |
private void loadBufferFromImageDataType(int[] data) { |
| 578 |
for (int iBand = 0; iBand < this.nBands; iBand++) { |
| 579 |
for (int pos = 0; pos < width; pos++) { |
| 580 |
switch(iBand) {
|
| 581 |
case 0: |
| 582 |
compressclient.buffer[pos + (width * iBand)] = |
| 583 |
(byte) ((data[pos + (width * countLine)] & 0xff0000) >> 16); |
| 584 |
break;
|
| 585 |
case 1: |
| 586 |
compressclient.buffer[pos + (width * iBand)] = |
| 587 |
(byte) ((data[pos + (width * countLine)] & 0xff00) >> 8); |
| 588 |
break;
|
| 589 |
case 2: |
| 590 |
compressclient.buffer[pos + (width * iBand)] = |
| 591 |
(byte) (data[pos + (width * countLine)] & 0xff); |
| 592 |
break;
|
| 593 |
} |
| 594 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) |
| 595 |
countLine++; |
| 596 |
} |
| 597 |
} |
| 598 |
} |
| 599 |
|
| 600 |
/**
|
| 601 |
* Carga el buffer de datos a comprimir desde un buffer byte[][] donde la primera dimensi?n
|
| 602 |
* es el n?mero de bandas y la segunda los elementos en lista (Ancho X Alto)
|
| 603 |
* @param b Buffer de datos de tipo byte[][]
|
| 604 |
*/
|
| 605 |
private void loadBufferFromByteDataType(byte[][] b) { |
| 606 |
for (int iBand = 0; iBand < this.nBands; iBand++) { |
| 607 |
for (int pos = 0; pos < width; pos++) { |
| 608 |
compressclient.buffer[pos + (width * iBand)] = b[iBand][pos + (width * countLine)]; |
| 609 |
if ((pos == (width - 1)) && (iBand == (this.nBands - 1))) |
| 610 |
countLine++; |
| 611 |
} |
| 612 |
} |
| 613 |
} |
| 614 |
|
| 615 |
/**
|
| 616 |
* M?todo obligado por el interfaz y que es llamado desde C cuando el
|
| 617 |
* compresor actualiza el porcentaje de compresi?n
|
| 618 |
*/
|
| 619 |
public void updatePercent() { |
| 620 |
writer.setPercent(compressclient.getPercent()); |
| 621 |
//System.out.println(compressclient.getPercent() + "%");
|
| 622 |
} |
| 623 |
|
| 624 |
/**
|
| 625 |
* Obtiene el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 626 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 627 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 628 |
* de salida.
|
| 629 |
* @return True si puede escribirse y false si no puede
|
| 630 |
*/
|
| 631 |
public boolean isWrite() { |
| 632 |
return write;
|
| 633 |
} |
| 634 |
|
| 635 |
/**
|
| 636 |
* Asigna el valor a la variable write que estar? a true cuando se est? escribiendo
|
| 637 |
* o puede escribirse la imagen de salida. El cancelar la operaci?n de escritura
|
| 638 |
* pondr? esta variable a false deteniendose la escritura y cerrandose el dataset
|
| 639 |
* de salida.
|
| 640 |
* @param write Variable booleana. True si puede escribirse y false si no puede
|
| 641 |
*/
|
| 642 |
public void setWrite(boolean write) { |
| 643 |
this.write = write;
|
| 644 |
} |
| 645 |
|
| 646 |
} |