programmation Java SWT

Question

HI .. j'ai ce morceau de code en Java ...

import org.eclipse.swt.SWT; 
import org.eclipse.swt.custom.CTabFolder; 
import org.eclipse.swt.custom.CTabItem; 
import org.eclipse.swt.events.SelectionAdapter; 
import org.eclipse.swt.events.SelectionEvent; 
import org.eclipse.swt.layout.FillLayout; 
import org.eclipse.swt.layout.RowLayout; 
import org.eclipse.swt.widgets.Button; 
import org.eclipse.swt.widgets.Composite; 
import org.eclipse.swt.widgets.Control; 
import org.eclipse.swt.widgets.Display; 
import org.eclipse.swt.widgets.Shell; 
import org.eclipse.swt.widgets.Text; 


public class testTabs { 
    static int count; 
    public static void main (String [] args) { 
     Display display = new Display(); 
     final Shell shell = new Shell(display); 
     shell.setLayout(new FillLayout()); 
     shell.setText("SWT TabFolder Example"); 


     CTabFolder folder = new CTabFolder(shell,SWT.NONE); 
     CTabItem item = new CTabItem(folder,SWT.UP); 
     item.setText("First"); 


     CTabItem item1 = new CTabItem(folder,SWT.UP); 
     item1.setText("First new"); 

//--------------------------------------------------- 

     CTabFolder fold = new CTabFolder(folder,SWT.UP); 
     CTabItem ite = new CTabItem(fold,SWT.UP); 
     ite.setText("Second"); 
     final Composite test = new Composite(fold,SWT.NONE); 
     test.setLayout(new RowLayout()); 
     Text tab1 = new Text(test,SWT.NONE); 
     tab1.setText("Testing"); 
     tab1.setEditable(true); 
     ite.setControl(test); 
     item.setControl(fold); 

     Button add = new Button(test,SWT.PUSH); 
     add.setText("ADD"); 
     SelectionAdapter adap = new SelectionAdapter(){ 
      public void widgetSelected(SelectionEvent e){ 
       Composite newcomp = new Composite(test,SWT.BORDER_DASH); 
       Text testtext = new Text(newcomp,SWT.BORDER_SOLID); 
       testtext.setText("Inside new Comp"); 
       count++; 
       System.out.println(count); 
       Control array[] = shell.getChildren(); 
       System.out.println(array.length); 
       shell.pack(); 
      } 
     }; 

     add.addSelectionListener(adap); 
     shell.open(); 
     while(!shell.isDisposed()){ 
      if(!display.readAndDispatch()){ 
       display.sleep(); 
      } 
     } 

    } 
} 

Quand je lance cela, le composite "Newcomp" n'est pas visible .. quelqu'un peut me aider ??

Answer 1

Si je modifie votre code pour ajouter juste une mise en page, il fonctionne:

public void widgetSelected(SelectionEvent e) { 
    Composite newcomp = new Composite(test,SWT.BORDER_DASH); 
    newcomp.setLayout(new RowLayout()); 
    .... 

Answer 2

Essayez d'utiliser test.layout() d'ici la fin de votre méthode widgetSelected.

Dites-nous si cela a fonctionné.