Bug 122412 Need a scroll bar to display the full description in expression builder
Description: Need a scroll bar to display the full description in expression builder Step to reproduce: 1.Open the expression builder, choose BIRT JS Object->Total Expected result: All the methods and description could be displayed.Since we can't resize the dialog of expression builder, a scroll bar is needed Actual result: The methods and description are truncated due to the limited space (see the sreenshot in attachment)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ExpressionBuilder.java
private TableViewer viewer;
		public TableContentProvider( TableViewer viewer )
		{
			this.viewer = viewer;
		}
		public Object[] getElements( Object inputElement )
		{
			if ( viewer == categoryTable )
			{
				return provider.getCategory( );
			}
			return provider.getChildren( inputElement );
		}
		public void dispose( )
		{
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )
		{
			if ( viewer == subCategoryTable )
			{
				functionTable.setInput( null );
			}
		}
	}
	private ISelectionChangedListener selectionListener = new ISelectionChangedListener( ) {
		public void selectionChanged( SelectionChangedEvent event )
		{
			IStructuredSelection selection = (IStructuredSelection) event
					.getSelection( );