Bug 179880 [Smoke][Automation][Regression] Preview failed in daily build 20070329
steps to reproduce - create a report design - preview report expected behavior: - report is previewed actual behavior: - failed to preview
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLAbstractLM.java
formats.indexOf(EngineIRConstants.FORMAT_TYPE_DOC) >= 0)
		{
			return true;
		}
		if ( content.getContentType( ) == IContent.CELL_CONTENT )
		{
			ICellContent cell = (ICellContent) content;
			IColumn column = cell.getColumnInstance( );
			if ( column != null )
			{
				formats = column.getVisibleFormat( );
				if ( formats != null
						&& ( formats
								.indexOf( EngineIRConstants.FORMAT_TYPE_VIEWER ) >= 0 || formats
								.indexOf( BIRTConstants.BIRT_ALL_VALUE ) >= 0 ) )
				{
					return true;
				}
			}
		}
		return false;
	}
	protected boolean handleVisibility( )
	{
		assert content != null;
		assert executor != null;
		if ( isHidden( content ) )
		{
			traverse( executor );
			return true;