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
for ( int i = 0; i < size; i++ )
		{
			CrosstabCellAdapter adapter = (CrosstabCellAdapter) cells.get( i );
			adapter.setRowNumber( rowNumber - adapter.getRowNumber( ) + 1 );
		}
		if ( isPageLayoutOver( ) )
		{
			for ( int i = 0; i < size; i++ )
			{
				CrosstabCellAdapter adapter = (CrosstabCellAdapter) cells
						.get( i );
				int row = adapter.getRowNumber( );
				int rowSpan = adapter.getRowSpan( );
				int column = adapter.getColumnNumber( );
				int columnSpan = adapter.getColumnSpan( );
				if ( adapter.getPositionType( ).equals(
						ICrosstabCellAdapterFactory.CELL_SUB_TOTAL ) )
				{
					adapter.setRowNumber( row - 1 );
					adapter.setRowSpan( rowSpan + 1 );
					CrosstabCellAdapter levelAdapter = getCell( row - 1,
							column - 1, cells );
					levelAdapter.setColumnSpan( levelAdapter.getColumnSpan( )
							- columnSpan );
				}
			}
		}
	}
	private CrosstabCellAdapter getCell( int rowNumber, int columnNumber,
			List list )