/// <summary>
/// Create a FontFamilyIdentifier by concatenating two existing identifiers.
/// </summary>
internal FontFamilyIdentifier(FontFamilyIdentifier first, FontFamilyIdentifier second)
{
first.Canonicalize();
second.Canonicalize();
_friendlyName = null;
_tokenCount = first._tokenCount + second._tokenCount;
_baseUri = null;
if (first._tokenCount == 0)
{
_canonicalReferences = second._canonicalReferences;
}
else if (second._tokenCount == 0)
{
_canonicalReferences = first._canonicalReferences;
}
else
{
_canonicalReferences = new CanonicalFontFamilyReference[_tokenCount];
int i = 0;
foreach (CanonicalFontFamilyReference family in first._canonicalReferences)
{
_canonicalReferences[i++] = family;
}
foreach (CanonicalFontFamilyReference family in second._canonicalReferences)
{
_canonicalReferences[i++] = family;
}
}
}
public bool Equals(FontFamilyIdentifier other)
{
if (_friendlyName == other._friendlyName && _baseUri == other._baseUri)
{
return(true);
}
int c = Count;
if (other.Count != c)
{
return(false);
}
if (c != 0)
{
Canonicalize();
other.Canonicalize();
for (int i = 0; i < c; ++i)
{
if (!_canonicalReferences[i].Equals(other._canonicalReferences[i]))
{
return(false);
}
}
}
return(true);
}
/// <summary>
/// Constructs FontFamily from a string and an optional base URI.
/// </summary>
/// <param name="baseUri">Specifies the base URI used to resolve family names, typically
/// the URI of the document or element that refers to the font family. Can be null.</param>
/// <param name="familyName">Specifies one or more comma-separated family names, each
/// of which may be either a regular family name string (e.g., "Arial") or a URI
/// (e.g., "file:///c:/windows/fonts/#Arial").</param>
public FontFamily(Uri baseUri, string familyName)
{
if (familyName == null)
throw new ArgumentNullException("familyName");
if (baseUri != null && !baseUri.IsAbsoluteUri)
throw new ArgumentException(SR.Get(SRID.UriNotAbsolute), "baseUri");
_familyIdentifier = new FontFamilyIdentifier(familyName, baseUri);
}
/// <summary>
/// Scan the friendly name string finding the first valid font family
/// </summary>
internal static IFontFamily FindFontFamilyFromFriendlyNameList(string friendlyNameList)
{
IFontFamily firstFontFamily = null;
// Split limits the number of tokens in a family name.
FontFamilyIdentifier identifier = new FontFamilyIdentifier(friendlyNameList, null);
for (int i = 0, c = identifier.Count; firstFontFamily == null && i < c; i++)
{
firstFontFamily = LookupFontFamily(identifier[i]);
}
if (firstFontFamily == null)
{
// cannot find first font family, assume null font for first font family
firstFontFamily = LookupFontFamily(NullFontFamilyCanonicalName);
// null font family should always exist
Invariant.Assert(firstFontFamily != null);
}
return firstFontFamily;
}
/// <summary>
/// Construct an anonymous font family, i.e., a composite font that is created
/// programatically instead of referenced by name or URI.
/// </summary>
public FontFamily()
{
_familyIdentifier = new FontFamilyIdentifier(null, null);
_firstFontFamily = new CompositeFontFamily();
}
internal FontFamily(FontFamilyIdentifier familyIdentifier)
{
_familyIdentifier = familyIdentifier;
}
ICollection<Typeface> IFontFamily.GetTypefaces(FontFamilyIdentifier familyIdentifier)
{
return new TypefaceCollection(new FontFamily(familyIdentifier), FamilyTypefaces);
}
/// <summary>
/// Create a FontFamilyIdentifier by concatenating two existing identifiers.
/// </summary>
internal FontFamilyIdentifier(FontFamilyIdentifier first, FontFamilyIdentifier second)
{
first.Canonicalize();
second.Canonicalize();
_friendlyName = null;
_tokenCount = first._tokenCount + second._tokenCount;
_baseUri = null;
if (first._tokenCount == 0)
{
_canonicalReferences = second._canonicalReferences;
}
else if (second._tokenCount == 0)
{
_canonicalReferences = first._canonicalReferences;
}
else
{
_canonicalReferences = new CanonicalFontFamilyReference[_tokenCount];
int i = 0;
foreach (CanonicalFontFamilyReference family in first._canonicalReferences)
{
_canonicalReferences[i++] = family;
}
foreach (CanonicalFontFamilyReference family in second._canonicalReferences)
{
_canonicalReferences[i++] = family;
}
}
}
public bool Equals(FontFamilyIdentifier other)
{
if (_friendlyName == other._friendlyName && _baseUri == other._baseUri)
return true;
int c = Count;
if (other.Count != c)
return false;
if (c != 0)
{
Canonicalize();
other.Canonicalize();
for (int i = 0; i < c; ++i)
{
if (!_canonicalReferences[i].Equals(other._canonicalReferences[i]))
return false;
}
}
return true;
}
ICollection <Typeface> IFontFamily.GetTypefaces(FontFamilyIdentifier familyIdentifier)
{
return(new TypefaceCollection(new FontFamily(familyIdentifier), _family));
}
