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
}
			addExpression(row.getTOC());
			addExpression( row.getBookmark( ) );
			for ( int i = 0; i < row.getCellCount( ); i++ )
			{
				CellDesign cell = row.getCell( i );
				if ( cell != null )
				{
					handleCell( cell, value );
				}
			}
		}
		/**
		 * handles a cell in a row
		 */
		protected void handleCell( CellDesign cell, Object value )
		{
			
			for ( int i = 0; i < cell.getContentCount( ); i++ )
				cell.getContent( i ).accept( this, value );
		}
		/**
		 * A helper function for adding expression collection to stack
		 */
		protected void pushExpressions( Collection newExpressions )
		{
			this.expressionStack.addLast( this.expressions );
			this.expressions = newExpressions;
		}
		/**