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
}
		}
		
		
		
		cell.setColSpan( handle.getColumnSpan( ) );
		int columnId = handle.getColumn( ) - 1;
		if ( columnId < 0 )
		{
			columnId = -1;
		}
		cell.setColumn( columnId );
		
		cell.setRowSpan( handle.getRowSpan( ) );
		cell.setDrop( handle.getDrop( ) );
		String onCreate = handle.getOnCreate( );
		cell.setOnCreate( createExpression( onCreate ) );
		cell.setOnRender( handle.getOnRender( ) );
		currentElement = cell;
	}
	/**
	 * create a list band using the items in slot.
	 * 
	 * @param elements
	 *            items in DE's IR
	 * @return ListBand.
	 */
	private ListBandDesign createListBand( SlotHandle elements )
	{
		ListBandDesign band = new ListBandDesign( );