75 

    76 /** return a new slice    

    77     @return an IriSP.LayoutManager.sliceObject

    78 */

    79 IriSP.LayoutManager.prototype.slice = function(widget) {

    80   var end = (this._widgets.length > 0) ? this._widgets.length - 1 : 0;

    81   var s = new IriSP.LayoutManager.sliceObject(0, end, this)

    82   return s;

    83 };

    84 

    85 /** sliceObjects represent a group of widget managed by a layout manager.

    86     They expose convenient methods for selecting portions of widgets

    87     They can be chained in this way :

    88     layoutManager.slice().before("ArrowWidget").after("PolemicWidget");

    89 */

    90 IriSP.LayoutManager.sliceObject = function(start, end, layoutManager) {

    91   this.start = start;

    92   this.end = end;

    93   this._layoutManager = layoutManager;

    94 };

    95 

    96 /** returns a slice of the array corresponding to the objects after widget

    97     @param widget the widget to filter with */

    98 IriSP.LayoutManager.sliceObject.prototype.after = function(widget) {

    99   var i;

   100   for(i = this.start; i < this.end; i++)

   101     if (this._layoutManager._widgets[i][0] === widget)

   102       break;

   103       

   104   this.start = i;

   105   console.log(this.start);

   106   return this;

   107 }

   108 

   109 /** returns a slice of the array corresponding to the objects before widget

   110     @param widget the widget to filter with */

   111 IriSP.LayoutManager.sliceObject.prototype.before = function(widget) {

   112   var i;

   113   for(i = this.start; i < this.end; i++)

   114     if (this._layoutManager._widgets[i][0] === widget)

   115       break;

   116       

   117   this.end = i;

   118   

   119   return this;

   120 }

   121 

   122 /** return a jquery selector corresponding to the defined slice */

   123 IriSP.LayoutManager.sliceObject.prototype.jQuerySelector = function() {

   124   return this._layoutManager.selector.children("").slice(this.start, this.end);  

   125 };