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
* @param cell
	 *            engine's styled cell element.
	 * @param handle
	 *            DE's styled cell element.
	 */
	protected void setupStyledElement( StyledElementDesign design,
			ReportElementHandle handle )
	{
		
		setupReportElement( design, handle );
		StyleDeclaration style = createPrivateStyle( handle,
				isContainer( handle ) );
		if ( style != null && !style.isEmpty( ) )
		{
			design.setStyleName( assignStyleName( style ) );
		}
	}
	public void visitCell( CellHandle handle )
	{
		
		CellDesign cell = new CellDesign( );
		setupStyledElement( cell, handle );
		
		SlotHandle contentSlot = handle.getContent( );
		for ( int i = 0; i < contentSlot.getCount( ); i++ )
		{
			apply( contentSlot.get( i ) );
			if ( currentElement != null )
			{
				cell.addContent( (ReportItemDesign) currentElement );