FairyGUI.TextField.ApplyVertAlign C# (CSharp) Method

        void ApplyVertAlign()
        {
            int oldOffset = _yOffset;
            if (_autoSize == AutoSizeType.Both || _autoSize == AutoSizeType.Height
                || _verticalAlign == VertAlignType.Top)
                _yOffset = 0;
            else
            {
                float dh;
                if (_textHeight == 0)
                    dh = _contentRect.height - this.textFormat.size;
                else
                    dh = _contentRect.height - _textHeight;
                if (dh < 0)
                    dh = 0;
                if (_verticalAlign == VertAlignType.Middle)
                    _yOffset = (int)(dh / 2);
                else
                    _yOffset = (int)dh;
            }

            if (oldOffset != _yOffset)
            {
                int cnt = _lines.Count;
                for (int i = 0; i < cnt; i++)
                    _lines[i].y = _lines[i].y2 + _yOffset;
                _requireUpdateMesh = true;
            }
        }