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
}
	public void visitLabel( LabelHandle handle )
	{
		
		LabelItemDesign labelItem = new LabelItemDesign( );
		setupReportItem( labelItem, handle );
		
		String text = handle.getText( );
		String textKey = handle.getTextKey( );
		labelItem.setText( textKey, text );
		
		ActionHandle action = handle.getActionHandle( );
		if ( action != null )
		{
			labelItem.setAction( createAction( action ) );
		}
		
		labelItem.setHelpText( handle.getHelpTextKey( ), handle.getHelpText( ) );
		currentElement = labelItem;
	}
	public void visitDataItem( DataItemHandle handle )
	{
		
		DataItemDesign data = new DataItemDesign( );
		setupReportItem( data, handle );
		data.setName( handle.getName( ) );
		
		String expr = handle.getValueExpr( );
		data.setValue( createExpression( expr ) );