public bool TryMatchCharacter(int codepoint, FontStyle fontStyle,
FontWeight fontWeight, FontStretch fontStretch,
FontFamily fontFamily, CultureInfo culture, out Typeface typeface)
{
var familyCount = Direct2D1FontCollectionCache.InstalledFontCollection.FontFamilyCount;
for (var i = 0; i < familyCount; i++)
{
var font = Direct2D1FontCollectionCache.InstalledFontCollection.GetFontFamily(i)
.GetMatchingFonts((SharpDX.DirectWrite.FontWeight)fontWeight,
(SharpDX.DirectWrite.FontStretch)fontStretch,
(SharpDX.DirectWrite.FontStyle)fontStyle).GetFont(0);
if (!font.HasCharacter(codepoint))
{
continue;
}
var fontFamilyName = font.FontFamily.FamilyNames.GetString(0);
typeface = new Typeface(fontFamilyName, fontStyle, fontWeight, fontStretch);
return(true);
}
typeface = default;
return(false);
}
public Typeface MatchCharacter(int codepoint, FontWeight fontWeight = default, FontStyle fontStyle = default,
FontFamily fontFamily = null, CultureInfo culture = null)
{
var fontFamilyName = FontFamily.Default.Name;
var familyCount = Direct2D1FontCollectionCache.InstalledFontCollection.FontFamilyCount;
for (var i = 0; i < familyCount; i++)
{
var font = Direct2D1FontCollectionCache.InstalledFontCollection.GetFontFamily(i)
.GetMatchingFonts((SharpDX.DirectWrite.FontWeight)fontWeight, FontStretch.Normal,
(SharpDX.DirectWrite.FontStyle)fontStyle).GetFont(0);
if (!font.HasCharacter(codepoint))
{
continue;
}
fontFamilyName = font.FontFamily.FamilyNames.GetString(0);
break;
}
return(GetTypeface(new FontFamily(fontFamilyName), fontWeight, fontStyle));
}
public bool TryMatchCharacter(int codepoint, FontWeight fontWeight, FontStyle fontStyle,
FontFamily fontFamily, CultureInfo culture, out FontKey fontKey)
{
var familyCount = Direct2D1FontCollectionCache.InstalledFontCollection.FontFamilyCount;
for (var i = 0; i < familyCount; i++)
{
var font = Direct2D1FontCollectionCache.InstalledFontCollection.GetFontFamily(i)
.GetMatchingFonts((SharpDX.DirectWrite.FontWeight)fontWeight, FontStretch.Normal,
(SharpDX.DirectWrite.FontStyle)fontStyle).GetFont(0);
if (!font.HasCharacter(codepoint))
{
continue;
}
var fontFamilyName = font.FontFamily.FamilyNames.GetString(0);
fontKey = new FontKey(new FontFamily(fontFamilyName), fontWeight, fontStyle);
return true;
}
fontKey = default;
return false;
}
/// <summary>
/// Creates formatted text.
/// </summary>
/// <param name="element">The owner element. The text formatter setting are read from this element.</param>
/// <param name="text">The text.</param>
/// <param name="typeface">The typeface to use. If this parameter is null, the typeface of the <paramref name="element"/> will be used.</param>
/// <param name="emSize">The font size. If this parameter is null, the font size of the <paramref name="element"/> will be used.</param>
/// <param name="foreground">The foreground color. If this parameter is null, the foreground of the <paramref name="element"/> will be used.</param>
/// <returns>A FormattedText object using the specified settings.</returns>
public static FormattedText CreateFormattedText(Control element, string text, Avalonia.Media.FontFamily typeface, double?emSize, IBrush foreground)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
if (typeface == null)
{
typeface = TextBlock.GetFontFamily(element);
}
if (emSize == null)
{
emSize = TextBlock.GetFontSize(element);
}
if (foreground == null)
{
foreground = TextBlock.GetForeground(element);
}
var formattedText = new FormattedText
{
Text = text,
Typeface = new Typeface(typeface),
FontSize = emSize.Value
};
formattedText.SetTextStyle(0, text.Length, foreground);
return(formattedText);
}
private static FontCollection GetOrAddFontCollection(FontFamily fontFamily)
{
return(fontFamily.Key == null ? InstalledFontCollection : s_cachedCollections.GetOrAdd(fontFamily.Key, CreateFontCollection));
}
public Typeface GetTypeface(FontFamily fontFamily, FontWeight fontWeight, FontStyle fontStyle)
{
//ToDo: Implement caching.
return(new Typeface(fontFamily, fontWeight, fontStyle));
}
