    Ext.define('Ext.rtl.layout.container.boxOverflow.Scroller', {
        override: 'Ext.layout.container.boxOverflow.Scroller',

        getWheelDelta: function(e) {
            var layout = this.layout,
                delta = e.getWheelDelta();

            if (layout.direction === 'horizontal' && layout.owner.getHierarchyState().rtl) {
                delta = -delta;
            }

            return delta;
        }
    });