zTree节点文字过多的处理方法

function addDiyDom(treeId, treeNode) {
 var spaceWidth = 5;
 var switchObj = $("#" + treeNode.tId + "_switch"),
 icoObj = $("#" + treeNode.tId + "_ico");
 switchObj.remove();
 icoObj.parent().before(switchObj);
 var spantxt = $("#" + treeNode.tId + "_span").html();
 if (spantxt.length > 19) {
  spantxt = spantxt.substring(0, 29) + "...";
  $("#" + treeNode.tId + "_span").html(spantxt);
 }
}

function addDiyDomWithCheck(treeId, treeNode) {
 var spaceWidth = 5;
 var switchObj = $("#" + treeNode.tId + "_switch"),
 checkObj = $("#" + treeNode.tId + "_check"),
 icoObj = $("#" + treeNode.tId + "_ico");
 switchObj.remove();
 checkObj.remove();
 icoObj.parent().before(switchObj);
 icoObj.parent().before(checkObj);

 var spantxt = $("#" + treeNode.tId + "_span").html();
 $("#" + treeNode.tId + "_span").css({"fontSize":13});
 $("#" + treeNode.tId + "_span").attr("data-toggle","tooltip");
 $("#" + treeNode.tId + "_span").attr("data-placement","");
 if (spantxt.length > 19) {
  spantxt = spantxt.substring(0, 19) + "...";
  $("#" + treeNode.tId + "_span").html(spantxt);
 }

}

 //树属性的定义 
 var setting = { 
 //页面上的显示效果 
 view: { 
  addHoverDom: addHoverDom, //当鼠标移动到节点上时，显示用户自定义控件 
  removeHoverDom: removeHoverDom, //离开节点时的操作 
  selectedMulti: false,
  txtSelectedEnable: true,
  showLine: true,
  addDiyDom: addDiyDomWithCheck
 }
}