Bug 204245 Blank column on visibility column in excel[0300]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/LayoutUtil.java
return true;
				}
			}
			if ( isHiddenByVisibility( style, format ) )
			{
				return true;
			}
			if ( content.getContentType( ) == IContent.CELL_CONTENT )
			{
				ICellContent cell = (ICellContent) content;
				IColumn column = cell.getColumnInstance( );
				return isHiddenByVisibility( column, format );
			}
		}
		return false;
	}
	/**
	 * if the content is hidden
	 * 
	 * @return
	 */
	static private boolean isHiddenByVisibility( IStyle style, String format )
	{
		CSSValueList formats = (CSSValueList) style
				.getProperty( IStyle.STYLE_VISIBLE_FORMAT );
		if ( formats != null )
		{
			if ( contains( formats, format ) )
			{
				return true;