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
private void addToModel( List ori, List add, int rowBase, int columnBase )
	{
		int size = add.size( );
		for ( int i = 0; i < size; i++ )
		{
			CrosstabCellAdapter adapter = (CrosstabCellAdapter) add.get( i );
			adapter.setRowNumber( rowBase + adapter.getRowNumber( ) );
			adapter.setColumnNumber( columnBase + adapter.getColumnNumber( ) );
			addToModel( ori, adapter );
		}
	}
	private List buildMeasures( )
	{
		List retValue = new ArrayList( );
		CrosstabReportItemHandle crosstab = getCrosstabReportItemHandle( );
		int count = crosstab.getMeasureCount( );
		
		for ( int i = 0; i < count; i++ )
		{
			MeasureViewHandle measureHandle = crosstab.getMeasure( i );
			
			CrosstabCellHandle handle = measureHandle.getCell( );
			CrosstabCellAdapter adapter = factory.createCrosstabCellAdapter(
					ICrosstabCellAdapterFactory.CELL_MEASURE, handle, 1, -1,
					i + 1, -1, isVertical( ) );
			retValue.add( adapter );
			
			int addregationCellCount = measureHandle.getAggregationCount( );
			for ( int j = 0; j < addregationCellCount; j++ )
			{