Bug 390669 [Accessibility]Press 'Tab' doesn't focus on the next report item when adding relative period aggregation.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
if ( infos == null || infos.size( ) == 0 )
			{
				
				
				
				
				
			}
			else
			{
				List<IArgumentLayout> argLayouts = DataService.getInstance( )
						.getArgumentLayout( function, infos );
				( (GridData) calculationComposite.getLayoutData( ) ).exclude = false;
				( (GridData) calculationComposite.getLayoutData( ) ).heightHint = SWT.DEFAULT;
				calculationComposite.setVisible( true );
				int width = 0;
				if ( calculationComposite.getParent( ).getLayout( ) instanceof GridLayout )
				{
					Control[] controls = calculationComposite.getParent( )
							.getChildren( );
					for ( int i = 0; i < controls.length; i++ )
					{
						if ( controls[i] instanceof Label
								&& ( (GridData) controls[i].getLayoutData( ) ).horizontalSpan == 1 )
						{
							int labelWidth = controls[i].getBounds( ).width
									- controls[i].getBorderWidth( )
									* 2;
							if ( labelWidth > width )
								width = labelWidth;