public static string TypefaceToString(FamilyTypeface ttf)
{
StringBuilder sb = new StringBuilder(ttf.Stretch.ToString());
sb.Append("-");
sb.Append(ttf.Weight.ToString());
sb.Append("-");
sb.Append(ttf.Style.ToString());
return sb.ToString();
}
/// <summary>
/// Compares two typefaces for equality; returns true if the specified typeface
/// is not null and has the same properties as this typeface.
/// </summary>
public bool Equals(FamilyTypeface typeface)
{
if (typeface == null)
{
return(false);
}
return(
Style == typeface.Style &&
Weight == typeface.Weight &&
Stretch == typeface.Stretch
);
}
/// <summary>
/// Parses a CharacterMetrics element, and advances the current position beyond the
/// element. Adds a CharacterMetrics object to the given FamilyTypface.
/// </summary>
private void ParseCharacterMetricsElement(FamilyTypeface face)
{
string key = null;
string metrics = null;
if (_reader.MoveToFirstAttribute())
{
do
{
if (_reader.NamespaceURI == XamlNamespace && _reader.LocalName == KeyAttribute)
{
key = GetAttributeValue();
}
else if (IsCompositeFontAttribute() && _reader.LocalName == MetricsAttribute)
{
metrics = GetAttributeValue();
}
else if (!IsIgnorableAttribute())
{
FailUnknownAttribute();
}
} while (_reader.MoveToNextAttribute());
_reader.MoveToElement();
}
if (key == null)
FailMissingAttribute(KeyAttribute);
if (metrics == null)
FailMissingAttribute(MetricsAttribute);
face.DeviceFontCharacterMetrics.Add(
CharacterMetricsDictionary.ConvertKey(key),
new CharacterMetrics(metrics)
);
// There should be no child elements.
ParseEmptyElement();
}
/// <summary>
/// Parses the attributes of the FamilyTypeface element and sets the corresponding
/// properties on the specified FamilyTypeface object. On return, the reader remains
/// positioned on the element.
/// </summary>
private void ParseFamilyTypefaceAttributes(FamilyTypeface face)
{
// Iterate over the attributes.
if (_reader.MoveToFirstAttribute())
{
do
{
// Process attributes in the composite font namespace; ignore any others.
if (IsCompositeFontAttribute())
{
string name = _reader.LocalName;
if (name == StyleAttribute)
{
FontStyle fontStyle = new FontStyle();
if (!FontStyles.FontStyleStringToKnownStyle(GetAttributeValue(), CultureInfo.InvariantCulture, ref fontStyle))
FailAttributeValue();
face.Style = fontStyle;
}
else if (name == WeightAttribute)
{
FontWeight fontWeight = new FontWeight();
if (!FontWeights.FontWeightStringToKnownWeight(GetAttributeValue(), CultureInfo.InvariantCulture, ref fontWeight))
FailAttributeValue();
face.Weight = fontWeight;
}
else if (name == StretchAttribute)
{
FontStretch fontStretch = new FontStretch();
if (!FontStretches.FontStretchStringToKnownStretch(GetAttributeValue(), CultureInfo.InvariantCulture, ref fontStretch))
FailAttributeValue();
face.Stretch = fontStretch;
}
else if (name == UnderlinePositionAttribute)
{
face.UnderlinePosition = GetAttributeAsDouble();
}
else if (name == UnderlineThicknessAttribute)
{
face.UnderlineThickness = GetAttributeAsDouble();
}
else if (name == StrikethroughPositionAttribute)
{
face.StrikethroughPosition = GetAttributeAsDouble();
}
else if (name == StrikethroughThicknessAttribute)
{
face.StrikethroughThickness = GetAttributeAsDouble();
}
else if (name == CapsHeightAttribute)
{
face.CapsHeight = GetAttributeAsDouble();
}
else if (name == XHeightAttribute)
{
face.XHeight = GetAttributeAsDouble();
}
else if (name == DeviceFontNameAttribute)
{
face.DeviceFontName = GetAttributeValue();
}
else
{
FailUnknownAttribute();
}
}
else if (!IsIgnorableAttribute())
{
FailUnknownAttribute();
}
} while (_reader.MoveToNextAttribute());
_reader.MoveToElement();
}
}
/// <summary>
/// Parses the FamilyTypeface element, including its attributes and children,
/// and advances to the next sibling element.
/// </summary>
private void ParseFamilyTypefaceElement()
{
FamilyTypeface face = new FamilyTypeface();
ParseFamilyTypefaceAttributes(face);
if (_reader.IsEmptyElement)
{
_reader.Read();
}
else
{
_reader.Read();
while (MoveToContent() != XmlNodeType.EndElement)
{
if (_reader.NodeType == XmlNodeType.Element && _reader.NamespaceURI == CompositeFontNamespace)
{
if (_reader.LocalName == DeviceFontCharacterMetricsPropertyElement)
{
VerifyNoAttributes();
if (_reader.IsEmptyElement)
{
_reader.Read();
}
else
{
_reader.Read();
// Process all child elements.
while (MoveToContent() == XmlNodeType.Element)
{
if (_reader.LocalName == CharacterMetricsElement)
{
ParseCharacterMetricsElement(face);
}
else
{
// Only CharacterMetricsElement is valid in this context.
FailUnknownElement();
}
}
// Process the end element for the collection.
_reader.ReadEndElement();
}
}
else
{
FailUnknownElement();
}
}
else
{
_reader.Skip();
}
}
_reader.ReadEndElement();
}
// Add the typeface.
_compositeFontInfo.GetFamilyTypefaceList().Add(face);
}
/// <summary>
/// Compares two typefaces for equality; returns true if the specified typeface
/// is not null and has the same properties as this typeface.
/// </summary>
public bool Equals(FamilyTypeface typeface)
{
if (typeface == null)
return false;
return (
Style == typeface.Style
&& Weight == typeface.Weight
&& Stretch == typeface.Stretch
);
}
public FamilyTypefaceWindow(FamilyTypeface familyTypeface)
{
InitializeComponent();
this.DataContext = familyTypeface;
}
