Application: gvSIG desktop

package org.gvsig.rasterTools.saveRaster.operations;

import java.io.File;

import java.io.IOException;

import org.cresques.io.GdalWriter;

import org.gvsig.rasterTools.saveRaster.ui.properties.ProgressSaveRasterDialog;

import com.iver.cit.gvsig.fmap.ViewPort;

import es.gva.cit.jgdal.Gdal;

import es.gva.cit.jgdal.GdalDriver;

import es.gva.cit.jgdal.GdalException;

/**

 * @author Nacho Brodin <brodin_ign@gva.es>

 * 

 * Esta clase copia un dataset desde disco en un formato soportado por Gdal

 * a otro especificado.

 */

class CopyDatasetThread extends Thread{

        private GdalDriver                                         driver = null;

        private String                                                 fDstName = null;

        private String                                                 fSrcName = null;

        private ViewPort                                         vp = null;

        private String[]                                        driverProps = null;

        private String                                                 extension = null;

        private double                                                 maxPercentBar = 0D;

        private boolean                                         runCopy = false;

        private ProgressSaveRasterDialog        window = null;

        /**

         * Constructor

         * @param src        Nombre del fichero fuente

         * @param dst        Nombre del fichero destino

         * @param viewPort        Viewport

         * @param dp        DriverProperties

         * @param drvName        Nombre del driver de Gdal

         * @param extens        Extensi?n del fichero

         */

        public CopyDatasetThread(String src, String dst, ViewPort viewPort, String[] dp,

                                String drvName, String extens, ProgressSaveRasterDialog window){

                fSrcName = src;                        

                fDstName = dst;

                vp = viewPort;

                this.window = window;

                this.driverProps = dp;

                this.extension = extens;

                try{

                        driver = Gdal.getDriverByName(drvName);

                }catch(GdalException exc){

                    System.err.println("No se ha podido obtener el driver.");

                }

                runCopy = true;

        }

        /**

         * Funci?n que realiza la copia del dataset

         */

        public void copy(){

                try{        

                        GdalWriter.createCopy(        driver,

                                                                        fDstName, 

                                                                        fSrcName, 

                                                                        false, 

                                                                        driverProps,

                                                                        vp.getProjection());

                }catch(IOException ev){

                        ev.printStackTrace();

                }catch(GdalException ev){

                        ev.printStackTrace();

                }                        

                runCopy = false;

        }

        /**

         * El thread maneja el incremento de la barra

         */

        public void run(){

                File f = new File(fSrcName);

                long sizeSrc = f.length();

                long sizeDst = 0;

                if(extension.equals("jpg"))

                        sizeDst = (long)(sizeSrc * 0.085);

                double incrProgressBar = 0;

                int last = 0;

                String osname = System.getProperty("os.name").toLowerCase();

                if(osname.indexOf("windows")>=0){

                        //Temporalmente hacemos esto en windows 

                        long l1 = System.currentTimeMillis();

                        long l2 = 0;

                        while(runCopy){

                                if((l2 - l1) > 1000){

                                        l1 = System.currentTimeMillis();

                                        window.getJProgressBar().setValue(window.getJProgressBar().getValue() + 1);

                                }

                                l2 = System.currentTimeMillis();

                                try{

                                        Thread.sleep(10);

                                }catch(InterruptedException exc){}

                        }

                }else{

                        while(runCopy){

                                File fdst = new File(fDstName);

                                incrProgressBar = (fdst.length() * maxPercentBar) / sizeDst;

                                if(fdst.exists() && incrProgressBar < maxPercentBar){

                                        if(last != ((int)incrProgressBar)){

                                                window.getJProgressBar().setValue(window.getJProgressBar().getValue() + 1);

                                                //System.out.println(fdst.length()+" "+maxPercentBar+" "+sizeDst+"**>"+incrProgressBar);

                                        }

                                        last=(int)incrProgressBar;

                                }

                                try{

                                        Thread.sleep(10);

                                }catch(InterruptedException exc){}

                        }

                }

                window.getJProgressBar().setValue(100);

        }

        /**

         * Asigna el porcentaje m?ximo a la barra

         * @param max        Porcentaje m?ximo de la barra

         */

        public void setMaxPercentBar(double max){

                this.maxPercentBar = max;

        }

}