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
}
			}
			return value;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitListItem(org.eclipse.birt.report.engine.ir.ListItemDesign)
		 */
		public Object visitListItem( ListItemDesign list, Object value )
		{
			BaseQueryDefinition query = prepareVisit( list );
			if ( query == null )
			{
				visitListBand( list.getHeader( ), value );
				visitListBand( list.getFooter( ), value );
			}
			else
			{
				pushReportItemQuery( query );
				pushExpressions( query.getBeforeExpressions( ) );
				handleReportItemExpressions( list );
				visitListBand( list.getHeader( ), value );
				popExpressions( );
				popReportItemQuery( );
				
				SlotHandle groupsSlot = ( (ListHandle) list.getHandle( ) )
						.getGroups( );
				
				pushReportItemQuery( query );