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/parser/EngineIRVisitor.java
for ( int i = 0; i < elements.getCount( ); i++ )
		{
			apply( elements.get( i ) );
			if ( currentElement != null )
			{
				band.addContent( (ReportItemDesign) currentElement );
			}
		}
		return band;
	}
	/**
	 * create a list group using the DE's ListGroup.
	 * 
	 * @param handle
	 *            De's list group
	 * @return engine's list group
	 */
	public void visitListGroup( ListGroupHandle handle )
	{
		ListGroupDesign listGroup = new ListGroupDesign( );
		setupGroup( listGroup, handle );
		ListBandDesign header = createListBand( handle.getHeader( ) );
		listGroup.setHeader( header );
		
		String tocExpr = handle.getTocExpression( );
		if ( null != tocExpr && !"".equals( tocExpr.trim( ) ) ) 
		{
			if ( header.getContentCount( ) > 0 )
			{
				ReportItemDesign item = (ReportItemDesign) header