Bug 212984 Disable Dimension or Level drag into outline
Description: The levels are not auto-outspread when drag the dimension from Data explorer to Outline Build number: 2.3.0.v20071214 Steps to reproduce: 1, New a cube with multiple levels in one dimension 2, New a crosstab 3, Drag the dimension from cube to crosstab's column area in Outline Expected result: The levels are auto-outspread. Actual result: The levels are not auto-outspread. Error log:
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/editpolicies/CrosstabCellFlowLayoutEditPolicy.java
return UnexecutableCommand.INSTANCE;
		}
		return new CrosstabPasterCommand( (DesignElementHandle) DNDUtil.unwrapToModel( source ),
				(DesignElementHandle) DNDUtil.unwrapToModel( parentObj ),
				(DesignElementHandle) DNDUtil.unwrapToModel( afterObj ) );
	}
	private boolean isFirstDataItem( CrosstabCellAdapter adapter, Object model,
			String type )
	{
		if ( adapter.getPositionType( ).equals( type ) )
		{
			return adapter.getFirstDataItem( ) == model;
		}
		return false;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.editpolicies.OrderedLayoutEditPolicy#createMoveChildCommand(org.eclipse.gef.EditPart,
	 *      org.eclipse.gef.EditPart)
	 */
	protected Command createMoveChildCommand( EditPart child, EditPart after )
	{
		Object afterModel = null;
		if ( after != null )
		{
			afterModel = after.getModel( );
		}
		CrosstabFlowMoveChildCommand command = new CrosstabFlowMoveChildCommand( child.getModel( ),
				afterModel,