FairyGUI.GLoader.UpdateLayout C# (CSharp) Method

        private void UpdateLayout()
        {
            if (_content.texture == null && _content.frameCount == 0)
            {
                if (_autoSize)
                {
                    _updatingLayout = true;
                    this.SetSize(50, 30);
                    _updatingLayout = false;
                }
                return;
            }

            _contentWidth = _contentSourceWidth;
            _contentHeight = _contentSourceHeight;

            if (_autoSize)
            {
                _updatingLayout = true;
                if (_contentWidth == 0)
                    _contentWidth = 50;
                if (_contentHeight == 0)
                    _contentHeight = 30;
                this.SetSize(_contentWidth, _contentHeight);
                _content.SetScale(1, 1);
                if (_content.texture != null)
                    _content.SetNativeSize();
                _updatingLayout = false;
            }
            else
            {
                float sx = 1, sy = 1;
                if (_fill != FillType.None)
                {
                    sx = this.width / _contentSourceWidth;
                    sy = this.height / _contentSourceHeight;

                    if (sx != 1 || sy != 1)
                    {
                        if (_fill == FillType.ScaleMatchHeight)
                            sx = sy;
                        else if (_fill == FillType.ScaleMatchWidth)
                            sy = sx;
                        else if (_fill == FillType.Scale)
                        {
                            if (sx > sy)
                                sx = sy;
                            else
                                sy = sx;
                        }
                        _contentWidth = Mathf.FloorToInt(_contentSourceWidth * sx);
                        _contentHeight = Mathf.FloorToInt(_contentSourceHeight * sy);
                    }
                }

                if (_content.texture != null)
                    _content.size = new Vector2(_contentWidth, _contentHeight);
                else
                    _content.SetScale(sx, sy);

                float nx;
                float ny;
                if (_align == AlignType.Center)
                    nx = Mathf.FloorToInt((this.width - _contentWidth) / 2);
                else if (_align == AlignType.Right)
                    nx = Mathf.FloorToInt(this.width - _contentWidth);
                else
                    nx = 0;
                if (_verticalAlign == VertAlignType.Middle)
                    ny = Mathf.FloorToInt((this.height - _contentHeight) / 2);
                else if (_verticalAlign == VertAlignType.Bottom)
                    ny = Mathf.FloorToInt(this.height - _contentHeight);
                else
                    ny = 0;
                _content.SetXY(nx, ny);
            }
        }