mxGraph.prototype.convertValueToString=function(a){a=this.model.getValue(a);if(null!=a){if(mxUtils.isNode(a))return a.nodeName;if("function"==typeof a.toString)return a.toString()}return""};mxGraph.prototype.getLabel=function(a){var b="";if(this.labelsVisible&&null!=a){var c=this.getCurrentCellStyle(a);mxUtils.getValue(c,mxConstants.STYLE_NOLABEL,!1)||(b=this.convertValueToString(a))}return b};mxGraph.prototype.isHtmlLabel=function(a){return this.isHtmlLabels()};mxGraph.prototype.isHtmlLabels=function(){return this.htmlLabels};