Bug 120218 Right click menu option to apply theme.
We should support the following right click menu. -- User right clicks int he report design layout area. -- The following menu items needs to be supported Theme --> Apply Theme -->Theme1 -->Theme2 ( similar to Apply style menu option )
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/providers/SchematicContextMenuProvider.java
}
				if ( !( tableParts.contains( obj ) ) )
				{
					tableParts.add( obj );
				}
			}
			else if ( obj instanceof TableCellEditPart )
			{
				Object parent = (TableEditPart) ( (TableCellEditPart) obj ).getParent( );
				if ( parent instanceof GridEditPart )
				{
					return Collections.EMPTY_LIST;
				}
				if ( !( tableParts.contains( parent ) ) )
				{
					tableParts.add( parent );
				}
			}
			else
			{
				return Collections.EMPTY_LIST;
			}
		}
		return tableParts;
	}
	/**
	 * Gets list edit parts.
	 * 
	 * @return The current selected list edit parts, null if no list edit part
	 *         is selected.