private static void EnumFonts(IDWriteFontCollection coll)
{
var count = coll.GetFontFamilyCount();
var locale = System.Globalization.CultureInfo.CurrentCulture.Name;
for (var i = 0U; i < count; i++)
{
try
{
using var pFontFam = ComReleaserFactory.Create(coll.GetFontFamily(i));
using var pFamNames = ComReleaserFactory.Create(pFontFam.Item.GetFamilyNames());
pFamNames.Item.FindLocaleName(locale, out var index, out var exists);
if (!exists)
{
index = 0;
}
var len = pFamNames.Item.GetStringLength(index) + 1;
var str = new StringBuilder((int)len);
pFamNames.Item.GetString(index, str, len);
TestContext.WriteLine(str);
}
catch (Exception ex)
{
TestContext.WriteLine("ERROR: " + ex.Message);
}
}
}
public FontCollection GetSystemFontCollection(bool checkForUpdates)
{
IDWriteFontCollection dwriteFontCollection = null;
_pFactory.GetSystemFontCollection(out dwriteFontCollection, checkForUpdates);
return(new FontCollection(dwriteFontCollection));
}
public unsafe IDWriteFont CreateFontFromLOGFONT(LogFont logFont, IDWriteFontCollection fontCollection)
{
int sizeOfLogFont = Marshal.SizeOf(logFont);
byte *nativeLogFont = stackalloc byte[sizeOfLogFont];
Marshal.StructureToPtr(logFont, new IntPtr(nativeLogFont), false);
return(CreateFontFromLOGFONT(new IntPtr(nativeLogFont), fontCollection));
}
public static IComObject <IDWriteTextFormat> CreateTextFormat(this IComObject <IDWriteFactory> factory,
string familyName,
float size,
IDWriteFontCollection fonts = null,
DWRITE_FONT_WEIGHT weight = DWRITE_FONT_WEIGHT.DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE style = DWRITE_FONT_STYLE.DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH stretch = DWRITE_FONT_STRETCH.DWRITE_FONT_STRETCH_NORMAL,
string localeName = null) => CreateTextFormat <IDWriteTextFormat>(factory?.Object, familyName, size, fonts, weight, style, stretch, localeName);
public IDWriteTextFormat CreateTextFormat(
string fontFamilyName,
IDWriteFontCollection fontCollection,
FontWeight fontWeight,
FontStyle fontStyle,
FontStretch fontStretch, float fontSize)
{
return(CreateTextFormat(fontFamilyName, fontCollection, fontWeight, fontStyle, fontStretch, fontSize, ""));
}
unsafe public FontCollection GetFontCollection(Uri uri)
{
string uriString = uri.AbsoluteUri;
IDWriteFontCollection dwriteFontCollection = null;
fixed(char *pUriString = uriString)
{
dwriteFontCollection = _pFactory.CreateCustomFontCollection(
WpfFontCollectionLoader,
new IntPtr(pUriString),
(uint)(uriString.Length + 1) * 2
);
}
return(new FontCollection(dwriteFontCollection));
}
public static IReadOnlyList <IDWriteFontFamily> GetFamilies(this IDWriteFontCollection collection)
{
if (collection == null)
{
throw new ArgumentNullException(nameof(collection));
}
var list = new List <IDWriteFontFamily>((int)collection.GetFontFamilyCount());
for (var i = 0; i < list.Capacity; i++)
{
collection.GetFontFamily((uint)i, out var family).ThrowOnError();
list.Add(family);
}
return(list);
}
public static IComObject <T> CreateTextFormat <T>(this IDWriteFactory factory,
string familyName,
float size,
IDWriteFontCollection fonts = null,
DWRITE_FONT_WEIGHT weight = DWRITE_FONT_WEIGHT.DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE style = DWRITE_FONT_STYLE.DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH stretch = DWRITE_FONT_STRETCH.DWRITE_FONT_STRETCH_NORMAL,
string localeName = null) where T : IDWriteTextFormat
{
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (familyName == null)
{
throw new ArgumentNullException(nameof(familyName));
}
localeName = localeName ?? string.Empty;
factory.CreateTextFormat(familyName, fonts, weight, style, stretch, size, localeName, out var format).ThrowOnError();
return(new ComObject <T>((T)format));
}
internal DWriteFontCollection(IDWriteFontCollection handle)
{
this.handle = handle;
}
public FontCollection(IDWriteFontCollection fontCollection)
{
_fontCollection = fontCollection;
}
internal DWriteFontCollection(IDWriteFontCollection handle)
{
this.handle = handle;
}
