         colSize: colSize
         wrapWidth: fullWidth * rowSize
         wrapHeight: fullHeight * colSize
-
-      if previous? and (not @metrics.previous? or (previous? and @_needsLayout(previous)))
-        delete @metrics.previous
-        @metrics.previous = previous
-        @metrics.previous.count = @$items.length
       return
 
   hlf.createPlugin

        width: @metrics.wrapWidth
        height: @metrics.wrapHeight
      return

    _needsLayout: (prevMetrics) ->
      return yes if not @metrics? or not @metrics.previous?
      prevMetrics ?= @metrics.previous
      return @metrics.rowSize isnt prevMetrics.rowSize or
             @$items.length isnt prevMetrics.count

    _reLayoutItems: ->
      @$items.each (i, item) =>


      $(window).resize _.debounce( =>
        @_updateMetrics(off)
        @_reLayoutItems()
        return
      , @resizeDelay)
      return
