FairyGUI.GList.GetSnappingPosition C# (CSharp) Method

        protected internal override void GetSnappingPosition(ref float xValue, ref float yValue)
        {
            if (_virtual)
            {
                if (_layout == ListLayoutType.SingleColumn || _layout == ListLayoutType.FlowHorizontal)
                {
                    float saved = yValue;
                    int index = GetIndexOnPos1(ref yValue, false);
                    if (index < _virtualItems.Count && saved - yValue > _virtualItems[index].size.y / 2 && index < _realNumItems)
                        yValue += _virtualItems[index].size.y + _lineGap;
                }
                else if (_layout == ListLayoutType.SingleRow || _layout == ListLayoutType.FlowVertical)
                {
                    float saved = xValue;
                    int index = GetIndexOnPos2(ref xValue, false);
                    if (index < _virtualItems.Count && saved - xValue > _virtualItems[index].size.x / 2 && index < _realNumItems)
                        xValue += _virtualItems[index].size.x + _columnGap;
                }
                else
                {
                    float saved = xValue;
                    int index = GetIndexOnPos3(ref xValue, false);
                    if (index < _virtualItems.Count && saved - xValue > _virtualItems[index].size.x / 2 && index < _realNumItems)
                        xValue += _virtualItems[index].size.x + _columnGap;
                }
            }
            else
                base.GetSnappingPosition(ref xValue, ref yValue);
        }