private void Draw(ISvgRenderer renderer, ISvgBoundable boundable)
{
using (FontManager = new SvgFontManager())
{
renderer.SetBoundable(boundable);
Render(renderer);
FontManager = null;
}
}
public static object ValidateFontFamily(string fontFamilyList, SvgDocument doc)
{
// Split font family list on "," and then trim start and end spaces and quotes.
var fontParts = (fontFamilyList ?? string.Empty).Split(new[] { ',' }).Select(fontName => fontName.Trim(new[] { '"', ' ', '\'' }));
FontFamily family;
IEnumerable <SvgFontFace> sFaces;
// Find a the first font that exists in the list of installed font families.
//styles from IE get sent through as lowercase.
foreach (var f in fontParts)
{
if (doc != null && doc.FontDefns().TryGetValue(f, out sFaces))
{
return(sFaces);
}
family = SvgFontManager.FindFont(f);
if (family != null)
{
return(family);
}
#if !NETSTANDARD20
family = PrivateFonts.Families.FirstOrDefault(ff => string.Equals(ff.Name, f, StringComparison.OrdinalIgnoreCase));
if (family != null)
{
return(family);
}
#endif
switch (f.ToLower())
{
case "serif":
return(System.Drawing.FontFamily.GenericSerif);
case "sans-serif":
return(System.Drawing.FontFamily.GenericSansSerif);
case "monospace":
return(System.Drawing.FontFamily.GenericMonospace);
}
}
// No valid font family found from the list requested.
return(System.Drawing.FontFamily.GenericSansSerif);
}
private IFontDefn GetFont(ISvgRenderer renderer, SvgElement owner, SvgFontManager fontManager)
{
var visual = owner?.Parents.OfType <SvgVisualElement>().FirstOrDefault();
return(visual?.GetFont(renderer, fontManager));
}
/// <summary>
/// Get the font information based on data stored with the text object or inherited from the parent.
/// </summary>
/// <returns></returns>
internal IFontDefn GetFont(ISvgRenderer renderer, SvgFontManager fontManager)
{
// Get the font-size
float fontSize;
var fontSizeUnit = this.FontSize;
if (fontSizeUnit == SvgUnit.None || fontSizeUnit == SvgUnit.Empty)
{
fontSize = new SvgUnit(SvgUnitType.Em, 1.0f);
}
else
{
fontSize = fontSizeUnit.ToDeviceValue(renderer, UnitRenderingType.Vertical, this);
}
var family = ValidateFontFamily(this.FontFamily, this.OwnerDocument, fontManager ?? this.OwnerDocument.FontManager);
var sFaces = family as IEnumerable <SvgFontFace>;
var ppi = this.OwnerDocument?.Ppi ?? SvgDocument.PointsPerInch;
if (sFaces == null)
{
var fontStyle = System.Drawing.FontStyle.Regular;
// Get the font-weight
switch (this.FontWeight)
{
case SvgFontWeight.Bold:
case SvgFontWeight.W600:
case SvgFontWeight.W700:
case SvgFontWeight.W800:
case SvgFontWeight.W900:
fontStyle |= System.Drawing.FontStyle.Bold;
break;
case SvgFontWeight.Bolder:
switch (Parent?.FontWeight ?? SvgFontWeight.Normal)
{
case SvgFontWeight.W100:
case SvgFontWeight.W200:
case SvgFontWeight.W300:
break;
default:
fontStyle |= System.Drawing.FontStyle.Bold;
break;
}
break;
case SvgFontWeight.Lighter:
switch (Parent?.FontWeight ?? SvgFontWeight.Normal)
{
case SvgFontWeight.W800:
case SvgFontWeight.W900:
fontStyle |= System.Drawing.FontStyle.Bold;
break;
}
break;
}
// Get the font-style
switch (this.FontStyle)
{
case SvgFontStyle.Italic:
case SvgFontStyle.Oblique:
fontStyle |= System.Drawing.FontStyle.Italic;
break;
}
// Get the text-decoration
var textDecoration = this.TextDecoration;
if (!textDecoration.HasFlag(SvgTextDecoration.None))
{
if (textDecoration.HasFlag(SvgTextDecoration.LineThrough))
{
fontStyle |= System.Drawing.FontStyle.Strikeout;
}
if (textDecoration.HasFlag(SvgTextDecoration.Underline))
{
fontStyle |= System.Drawing.FontStyle.Underline;
}
}
var ff = family as FontFamily;
if (!ff.IsStyleAvailable(fontStyle))
{
// Do Something
}
// Get the font-family
return(new GdiFontDefn(new Font(ff, fontSize, fontStyle, GraphicsUnit.Pixel), ppi));
}
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, ppi));
}
}
public static object ValidateFontFamily(string fontFamilyList, SvgDocument doc, SvgFontManager fontManager)
{
// Split font family list on "," and then trim start and end spaces and quotes.
var fontParts = (fontFamilyList ?? string.Empty).Split(new[] { ',' }).Select(fontName => fontName.Trim(new[] { '"', ' ', '\'' }));
// Find a the first font that exists in the list of installed font families.
// styles from IE get sent through as lowercase.
foreach (var f in fontParts)
{
IEnumerable <SvgFontFace> fontFaces;
if (doc != null && doc.FontDefns().TryGetValue(f, out fontFaces))
{
return(fontFaces);
}
var family = fontManager.FindFont(f);
if (family != null)
{
return(family);
}
}
// No valid font family found from the list requested.
return(System.Drawing.FontFamily.GenericSansSerif);
}