Bug 102511 Enhance Highlighting to support Banding
Using the highlight feature to create a banded report results in a messy report. To recreate, create a simple tabular report. In the designer, select the detail row, go to the Highlights tab on the Property Editor view. Add a new highlight, set its condition to be "row[0] % 2" "Equals" "0". Set the formatting for the highlight to have a gray background color. When the report is previewed, alternating rows have a background color for each cell. The issue is that the backgrounds for the cells are not contiguous, there are spaces between each cell's background, and if a cell has a null value there is no background color. In this situation the highlight should apply to the row, instead it is being applied to each cell. If I manually set the background of a detail row to be gray I get the effect I want.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
{
			BaseQueryDefinition query = prepareVisit( text );
			handleReportItemExpressions( text );
			HashMap exprs = text.getExpressions( );
			if ( exprs != null )
			{
				Iterator iter = exprs.values( ).iterator( );
				while ( iter.hasNext( ) )
				{
					IBaseExpression expr = (IBaseExpression) iter.next( );
					addExpression( expr );
				}
			}
			finishVisit( query );
			return value;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitTableItem(org.eclipse.birt.report.engine.ir.TableItemDesign)
		 */
		public Object visitTableItem( TableItemDesign table, Object value )
		{
			BaseQueryDefinition query = prepareVisit( table );
			for ( int i = 0; i < table.getColumnCount( ); i++ )
			{
				
				
			}
			if ( query == null )