final Composite tableComposite = new Composite( mainComposite, SWT.NONE );
tableComposite.setLayout( glayout( 2, 0, 0 ) );
decorator.addEditorControl( mainComposite );
decorator.addEditorControl( sourceTableComposite );
decorator.addEditorControl( decoratorComposite );
decorator.addEditorControl( sourceTable );
decorator.addEditorControl( toolbarComposite );
decorator.addEditorControl( toolbar );
final Table mainTable = (Table) super.createContents( tableComposite, true );