rem: if (vIsLastColumn) 
add: var vLevel = this.getLevel(); var vExcludeList = this.getTree().getExcludeSpecificTreeLines(); var vExclude = vExcludeList[vLastColumn - vColumn - 1];  if (vColumn == vFirstColumn) 
context: qx.Proto.getIndentSymbol = function(vUseTreeLines, vIsLastColumn){  if (vIsLastColumn)  {    if (this.hasContent() || this.getAlwaysShowPlusMinusSymbol())    {      // If tree lines were not requested, don't display them      if (!vUseTreeLines)      {        return this.getOpen() ? "minus" : "plus";      }      // If this is the first level under the root...      if (this.getLevel() == 1) {        // ... and the root is not being displayed and this is the first        // child...        var vParentFolder = this.getParentFolder();        if (vParentFolder &&            !vParentFolder._horizontalLayout.getVisibility() &&            this.isFirstChild())        {          //... then if this is also the last (i.e. only) child, use no tree          // lines; otherwise, use descender lines but no ascender.          if (this.isLastChild())          {            return this.getOpen() ? "minus" : "plus";          }          else          {            return this.getOpen() ? "start_minus" : "start_plus";          }        }      }      if (this.isLastChild())      {        return this.getOpen() ? "end_minus" : "end_plus";      }      else      {        return this.getOpen() ? "cross_minus" : "cross_plus";      }    }    else if (vUseTreeLines)    {      return this.isLastChild() ? "end" : "cross";    }  }  else  {    return vUseTreeLines && !this.isLastChild() ? "line" : null;  }}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/979ac1838579962c30222b3f75f3d10fc65a9f22/TreeFolder.js/buggy/qooxdoo/frontend/framework/source/class/qx/ui/treefullcontrol/TreeFolder.js