Bug 204245 Blank column on visibility column in excel[0300]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLTableLayoutEmitter.java
this.context = context;
	}
	
	public void end( IReportContent report )
	{
		emitter.end( report );
	}
	public String getOutputFormat( )
	{
		return emitter.getOutputFormat( );
	}
	public void initialize( IEmitterServices service )
	{
		emitter.initialize( service );
	}
	public void start( IReportContent report )
	{
		emitter.start( report );
	}
	protected int getGroupLevel( )
	{
		if ( !groupStack.isEmpty( ) )
		{
			return ( (Integer) groupStack.peek( ) ).intValue( );
		}
		return -1;
	}
	
	protected boolean isContentFinished(IContent content)
	{