Tree Widget Item click listeners

Hi ,

Iam new to Vaadin .As iam working for Tree widget .where i wants to click the Tree widget items which requires to show the icon and description at the other window in the same page for particular item. let say example as (

Please anyone let me know if any one have a sample program or any other code snippets which helps me alot.

Thanks in advance.
Kiran kumar

public void itemClick(ItemClickEvent event) {
      		if (event.getSource() == t) {
                Object itemId = event.getItemId();
                if (event.getButton() == ItemClickEvent.BUTTON_MIDDLE
                        || event.isCtrlKey() || event.isShiftKey()) {
               	Item clicked = event.getItem();
                 getWindow().paintContent(BuildLayoutWindow  );
		    event.getComponent().getWindow().setIcon(new Embedded(null, new ThemeResource(

As above code after clicking tree widget item its getting inside the tree widget not under the other window in same page.