       gutter = Math.round parseFloat(@$sampleItem.css('margin-right'))
       fullWidth = $item.outerWidth() + gutter
       fullHeight = $item.outerHeight() + gutter
-      previous = _.clone @metrics if @metrics?
 
       if hard is on then @metrics =
         gutter: gutter


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

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

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