Bug 182000 Cross tab layout behavior
In the current approach of cross tab layout view, the arrow is associated with the first data item in the cell. - User cannot delete measure and level data items which have arrow with them. -Wenbin has concerns with the approach, as this will make the UI very restrictive. - Also user may want to delete data item and just show image in a cross tab cell. We had a discussion with Bang, and he has revised the mockups for the layout - The idea is that the arrow is associated with the cross tab cell and not data item. Let us know if there are any issues with supporting this.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/model/CrosstabHandleAdapter.java
retValue = new VirtualCrosstabCellAdapter( handle );
				( (VirtualCrosstabCellAdapter) retValue )
						.setCrosstabReportItemHandle( getCrosstabReportItemHandle( ) );
				( (VirtualCrosstabCellAdapter) retValue )
						.setType( VirtualCrosstabCellAdapter.ROW_TYPE );
			}
			else if ( CELL_COLUMN_VIRTUAL.equals( type ) )
			{
				retValue = new VirtualCrosstabCellAdapter( handle );
				( (VirtualCrosstabCellAdapter) retValue )
						.setCrosstabReportItemHandle( getCrosstabReportItemHandle( ) );
				( (VirtualCrosstabCellAdapter) retValue )
						.setType( VirtualCrosstabCellAdapter.COLUMN_TYPE );
			}
			else if ( CELL_MEASURE_VIRTUAL.equals( type ) )
			{
				retValue = new VirtualCrosstabCellAdapter( handle );
				( (VirtualCrosstabCellAdapter) retValue )
						.setCrosstabReportItemHandle( getCrosstabReportItemHandle( ) );
				( (VirtualCrosstabCellAdapter) retValue )
						.setType( VirtualCrosstabCellAdapter.MEASURE_TYPE );
			}
			else if ( LEFT_CONNER.equals( type ) )
			{
				retValue = new VirtualCrosstabCellAdapter( handle );
				( (VirtualCrosstabCellAdapter) retValue )
						.setCrosstabReportItemHandle( getCrosstabReportItemHandle( ) );
				( (VirtualCrosstabCellAdapter) retValue )
						.setType( VirtualCrosstabCellAdapter.IMMACULATE_TYPE );
			}