import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
 
public class RunStarGeneGUI {
 
 private Shell shell;
 private GridLayout gridLayout;
 private GridData gridData;
 private Display display;
 private String cmd;
 private Text allStarGene, term;
 
 /**
  * Constructeur
  * @param display Le display de la fenetre
  * @param cmd La commande a executer
  */
 public RunStarGeneGUI(Display display, final String cmd){
  this.display = display;
  this.cmd = cmd;
  this.initLayout();
  this.initShell();
  this.initRunStarGeneGUI();
  this.run();
  this.ear();
 }
 
 private void initShell(){
  // create the shell
  this.shell = new Shell(SWT.TITLE | SWT.CLOSE | SWT.RESIZE);
  this.shell.setText("Run of STARGene" );
  this.shell.setSize(517, 486);
  shell.setLayout(gridLayout);
 }
 
 private void initLayout(){
  this.gridLayout = new GridLayout();
  gridLayout.numColumns = 1;
   
  this.gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
 }
 
 private void initRunStarGeneGUI(){
  this.allStarGene = new Text(this.shell, SWT.H_SCROLL | SWT.V_SCROLL);
  allStarGene.setLayoutData(gridData);
  this.term = new Text(this.shell, SWT.H_SCROLL | SWT.V_SCROLL);
  term.setLayoutData(gridData);
 }
 
 public void run(){
  display.asyncExec (new Runnable () {
 
   public void run () {
    try{
     Runtime r = Runtime.getRuntime();
     Process p = r.exec(cmd);
     // Consommation de la sortie standard de l'application externe dans un Thread separe
     try {
      BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
      String line = "";
      try {
       while((line = reader.readLine()) != null) {
        System.out.println(line);
        /*
         * Ici j'aimerai faire un :
         * term.setText(line);
         * mais ça ne marche pas
         */
       }
      } finally {
       reader.close();
      }
     } catch(IOException ioe) {
      ioe.printStackTrace();
     }
 
    } catch (Exception e){
     System.err.println("Probleme"+e+": dans le lancement de StarGene avec la commande :"+cmd);
    }
   }
  });
 }
 
 // Affiche la fenetre
 private void ear(){  
  shell.open();
  while (!shell.isDisposed())
   if (!display.readAndDispatch())
    display.sleep();
 }
}