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
}
		/**
		 * processes a band in a table
		 */
		protected void handleTableBand( TableBandDesign band, Object value )
		{
			for ( int i = 0; i < band.getRowCount( ); i++ )
				handleRow( band.getRow( i ), value );
		}
		/**
		 * processes a table group
		 */
		protected void handleTableGroup( TableGroupDesign group,
				GroupHandle handle, Object value )
		{
			IGroupDefinition groupDefn = handleGroup( group, handle );
			pushQuery( groupDefn );
			pushExpressions( groupDefn.getBeforeExpressions( ) );
			handleTableBand( group.getHeader( ), value );
			popExpressions( );
			pushExpressions( groupDefn.getAfterExpressions( ) );
			handleTableBand( group.getFooter( ), value );
			popExpressions( );
			popQuery( );
		}
		/**
		 * handle style, which may contain highlight/mapping expressions
		 * 
		 * @param style
		 *            style design