const string KeyPrefix = "tk:"; // "typeface key"
XGlyphTypeface(string key, XFontFamily fontFamily, XFontSource fontSource, XStyleSimulations styleSimulations)
{
_key = key;
_fontFamily = fontFamily;
_fontSource = fontSource;
_fontface = OpenTypeFontface.CetOrCreateFrom(fontSource);
Debug.Assert(ReferenceEquals(_fontSource.Fontface, _fontface));
_styleSimulations = styleSimulations;
Initialize();
}
/// <summary>
/// Initializes a new instance of the <see cref="XGlyphTypeface"/> class by a font source.
/// </summary>
public XGlyphTypeface(XFontSource fontSource)
{
string familyName = fontSource.Fontface.name.Name;
_fontFamily = new XFontFamily(familyName, false);
_fontface = fontSource.Fontface;
_isBold = _fontface.os2.IsBold;
_isItalic = _fontface.os2.IsItalic;
_key = ComputeKey(familyName, _isBold, _isItalic);
//_fontFamily =xfont FontFamilyCache.GetFamilyByName(familyName);
_fontSource = fontSource;
Initialize();
}
//public XFontFamily(GdiFontFamily gdiFontFamily)
//{
// FamilyInternal = FontFamilyInternal.GetOrCreateFromGdi(gdiFontFamily);
//}
#endif
#if WPF
//public XFontFamily(WpfFontFamily wpfFontFamily)
//{
// FamilyInternal = FontFamilyInternal.GetOrCreateFromWpf(wpfFontFamily);
// //// HACK
// //int idxHash = _name.LastIndexOf('#');
// //if (idxHash > 0)
// // _name = _name.Substring(idxHash + 1);
// //_wpfFamily = family;
//}
#endif
internal static XFontFamily CreateFromName_not_used(string name, bool createPlatformFamily)
{
XFontFamily fontFamily = new XFontFamily(name);
if (createPlatformFamily)
{
#if GDI
//fontFamily._gdiFamily = new System.Drawing.FontFamily(name);
#endif
#if WPF
//fontFamily._wpfFamily = new System.Windows.Media.FontFamily(name);
#endif
}
return(fontFamily);
}
public static XGlyphTypeface GetOrCreateFrom(string familyName, FontResolvingOptions fontResolvingOptions)
{
// Check cache for requested type face.
string typefaceKey = ComputeKey(familyName, fontResolvingOptions);
XGlyphTypeface glyphTypeface;
if (GlyphTypefaceCache.TryGetGlyphTypeface(typefaceKey, out glyphTypeface))
{
// Just return existing one.
return(glyphTypeface);
}
// Resolve typeface by FontFactory.
FontResolverInfo fontResolverInfo = FontFactory.ResolveTypeface(familyName, fontResolvingOptions, typefaceKey);
if (fontResolverInfo == null)
{
// No fallback - just stop.
throw new InvalidOperationException("No appropriate font found.");
}
// Now create the font family at the first.
// Create new and exclusively used font family for custom font resolver retrieved font source.
XFontFamily fontFamily = XFontFamily.CreateSolitary(fontResolverInfo.FaceName);
// We have a valid font resolver info. That means we also have an XFontSource object loaded in the cache.
////XFontSource fontSource = FontFactory.GetFontSourceByTypefaceKey(fontResolverInfo.FaceName);
XFontSource fontSource = FontFactory.GetFontSourceByFontName(fontResolverInfo.FaceName);
Debug.Assert(fontSource != null);
// Each font source already contains its OpenTypeFontface.
glyphTypeface = new XGlyphTypeface(typefaceKey, fontFamily, fontSource, fontResolverInfo.StyleSimulations);
GlyphTypefaceCache.AddGlyphTypeface(glyphTypeface);
return(glyphTypeface);
}
