Svg.SvgElement.GetFont C# (CSharp) Method

        internal IFontDefn GetFont(ISvgRenderer renderer)
        {
            // Get the font-size
            float fontSize;
            var fontSizeUnit = this.FontSize;
            if (fontSizeUnit == SvgUnit.None || fontSizeUnit == SvgUnit.Empty)
            {
                fontSize = 1.0f;
            }
            else
            {
                fontSize = fontSizeUnit.ToDeviceValue(renderer, UnitRenderingType.Vertical, this);
            }

            var family = ValidateFontFamily(this.FontFamily, this.OwnerDocument);
            var sFaces = family as IEnumerable<SvgFontFace>;

            if (sFaces == null)
            {
                var fontStyle = System.Drawing.FontStyle.Regular;

                // Get the font-weight
                switch (this.FontWeight)
                {
                    //Note: Bold is not listed because it is = W700.
                    case SvgFontWeight.Bolder:
                    case SvgFontWeight.W600:
                    case SvgFontWeight.W700:
                    case SvgFontWeight.W800:
                    case SvgFontWeight.W900:
                        fontStyle |= System.Drawing.FontStyle.Bold;
                        break;
                }

                // Get the font-style
                switch (this.FontStyle)
                {
                    case SvgFontStyle.Italic:
                    case SvgFontStyle.Oblique:
                        fontStyle |= System.Drawing.FontStyle.Italic;
                        break;
                }

                // Get the text-decoration
                switch (this.TextDecoration)
                {
                    case SvgTextDecoration.LineThrough:
                        fontStyle |= System.Drawing.FontStyle.Strikeout;
                        break;
                    case SvgTextDecoration.Underline:
                        fontStyle |= System.Drawing.FontStyle.Underline;
                        break;
                }

                var ff = family as FontFamily;
                if (!ff.IsStyleAvailable(fontStyle))
                {
                    // Do Something
                }

                // Get the font-family
                return new GdiFontDefn(new System.Drawing.Font(ff, fontSize, fontStyle, System.Drawing.GraphicsUnit.Pixel));
            }
            else
            {
                var font = sFaces.First().Parent as SvgFont;
                if (font == null)
                {
                    var uri = sFaces.First().Descendants().OfType<SvgFontFaceUri>().First().ReferencedElement;
                    font = OwnerDocument.IdManager.GetElementById(uri) as SvgFont;
                }
                return new SvgFontDefn(font, fontSize, OwnerDocument.Ppi);
            }
        }