org.eclipse.jface.viewers.TreeViewer#reveal ( )源码实例Demo

protected void newFolderButtonPressed() {
	NewFolderDialog dialog = new NewFolderDialog(getShell(),
			fSelectedContainer);
	if (dialog.open() == Window.OK) {
		TreeViewer treeViewer = getTreeViewer();
		treeViewer.refresh(fSelectedContainer);
		Object createdFolder = dialog.getResult()[0];
		treeViewer.reveal(createdFolder);
		treeViewer.setSelection(new StructuredSelection(createdFolder));
	}
}
 

/**
 * Reveal all children in the model that require attention.
 */
private void revealChildrenThatNeedAttention(TreeViewer viewer,
    LogEntry<T> entry) {
  Data logData = entry.getLogData();
  if (logData != null && logData.getNeedsAttention()) {
    viewer.reveal(entry);
  }

  List<LogEntry<T>> disclosedChildren = entry.getDisclosedChildren();
  for (LogEntry<T> logEntry : disclosedChildren) {
    revealChildrenThatNeedAttention(viewer, logEntry);
  }
}
 

protected void newFolderButtonPressed() {
	NewFolderDialog dialog= new NewFolderDialog(getShell(), fSelectedContainer);
	if (dialog.open() == Window.OK) {
		TreeViewer treeViewer= getTreeViewer();
		treeViewer.refresh(fSelectedContainer);
		Object createdFolder= dialog.getResult()[0];
		treeViewer.reveal(createdFolder);
		treeViewer.setSelection(new StructuredSelection(createdFolder));
	}
}
 

@Override
protected Control createDialogArea ( final Composite parent )
{
    setTitle ( "Select master server" );
    setMessage ( "Choose a master server from the world model" );

    final Composite composite = (Composite)super.createDialogArea ( parent );

    final Composite wrapper = new Composite ( composite, SWT.NONE );
    wrapper.setLayout ( new GridLayout ( 1, true ) );
    wrapper.setLayoutData ( new GridData ( SWT.FILL, SWT.FILL, true, true ) );

    final ObservablesManager mgr = new ObservablesManager ();

    final TreeViewer viewer = new TreeViewer ( wrapper );
    viewer.setAutoExpandLevel ( 2 );
    viewer.getControl ().setLayoutData ( new GridData ( SWT.FILL, SWT.FILL, true, true, 1, 1 ) );
    viewer.addDoubleClickListener ( new IDoubleClickListener () {

        @Override
        public void doubleClick ( final DoubleClickEvent event )
        {
            handleDoubleClick ();
        }
    } );

    final Button add = new Button ( wrapper, SWT.RADIO );
    add.setText ( "Add master server" );
    add.setToolTipText ( "Assign the component to the selected master server in addition" );

    this.replace = new Button ( wrapper, SWT.RADIO );
    this.replace.setText ( "Replace all master servers" );
    this.replace.setToolTipText ( "Assign the component soley to the selected master server" );
    this.replace.setSelection ( true );

    this.delete = new Button ( wrapper, SWT.RADIO );
    this.delete.setText ( "Remove master server" );
    this.delete.setToolTipText ( "Un-assign the component from the selected master server" );

    mgr.runAndCollect ( new Runnable () {

        @Override
        public void run ()
        {
            createDataModel ( viewer );
        }
    } );

    if ( this.lastSelection != null )
    {
        viewer.setSelection ( new StructuredSelection ( this.lastSelection ) );
        viewer.reveal ( this.lastSelection );
    }

    return composite;
}