List <string> NativeFontFamilies()
{
if (nativeFontCollection == null)
{
var collectionOptions = new CTFontCollectionOptions();
collectionOptions.RemoveDuplicates = true;
nativeFontCollection = new CTFontCollection(collectionOptions);
nativeFontDescriptors = new Dictionary <string, CTFontDescriptor>();
var fontdescs = nativeFontCollection.GetMatchingFontDescriptors();
foreach (var fontdesc in fontdescs)
{
try
{
var name = fontdesc.GetAttribute(CTFontDescriptorAttributeKey.FamilyName)?.ToString();
if (name != null && !nativeFontDescriptors.ContainsKey(name))
{
nativeFontDescriptors.Add(name, fontdesc);
}
}
catch
{
Diagnostics.Debug.Assert(false, $"Failed getting FamilyName attribute from font descriptor '{fontdesc}'.");
}
}
}
return(new List <string>(nativeFontDescriptors.Keys));
}
List <string> NativeFontFamilies()
{
if (nativeFontCollection == null)
{
var collectionOptions = new CTFontCollectionOptions();
collectionOptions.RemoveDuplicates = true;
nativeFontCollection = new CTFontCollection(collectionOptions);
nativeFontDescriptors = new Dictionary <string, CTFontDescriptor> ();
}
var fontdescs = nativeFontCollection.GetMatchingFontDescriptors();
foreach (var fontdesc in fontdescs)
{
var font = new CTFont(fontdesc, 0);
// Just in case RemoveDuplicates collection option is not working
if (!nativeFontDescriptors.ContainsKey(font.FamilyName))
{
nativeFontDescriptors.Add(font.FamilyName, fontdesc);
}
}
var fontFamilies = new List <string> (nativeFontDescriptors.Keys);
return(fontFamilies);
}
List<string> NativeFontFamilies()
{
if (nativeFontCollection == null)
{
var collectionOptions = new CTFontCollectionOptions ();
collectionOptions.RemoveDuplicates = true;
nativeFontCollection = new CTFontCollection (collectionOptions);
nativeFontDescriptors = new Dictionary<string, CTFontDescriptor> ();
}
var fontdescs = nativeFontCollection.GetMatchingFontDescriptors ();
foreach (var fontdesc in fontdescs)
{
var font = new CTFont (fontdesc, 0);
// Just in case RemoveDuplicates collection option is not working
if (!nativeFontDescriptors.ContainsKey (font.FamilyName))
{
nativeFontDescriptors.Add (font.FamilyName, fontdesc);
}
}
var fontFamilies = new List<string> (nativeFontDescriptors.Keys);
return fontFamilies;
}
public void GetMatchingFontDescriptorsTest()
{
var collection = new CTFontCollection(null);
var sortIsCalled = false;
var descList = collection.GetMatchingFontDescriptors((CTFontDescriptor x, CTFontDescriptor y) => {
sortIsCalled = true;
return(0);
});
Assert.IsTrue(sortIsCalled, "GetMatchingFontDescriptors delegate is called");
// Native crash (can't assert on it) if https://github.com/xamarin/xamarin-macios/pull/3871 fix not present.
descList.First().GetAttributes();
}
public void GetMatchingFontDescriptorsCollectionOptionsTest()
{
TestRuntime.AssertXcodeVersion(10, 0);
using (var collection = new CTFontCollection(null)) {
var fd1 = collection.GetMatchingFontDescriptors();
var fd2 = collection.GetMatchingFontDescriptors(options: null); // documented to return the same thing as the parameterless if null
Assert.NotNull(fd1, "fd1");
Assert.NotNull(fd2, "fd2");
Assert.AreEqual(fd1.Length, fd2.Length, "equal collections");
var fd3 = collection.GetMatchingFontDescriptors(new CTFontCollectionOptions {
RemoveDuplicates = true
});
Assert.NotNull(fd3, "fd3");
}
}
List <string> NativeFontFamilies()
{
if (nativeFontCollection == null)
{
var collectionOptions = new CTFontCollectionOptions();
collectionOptions.RemoveDuplicates = true;
nativeFontCollection = new CTFontCollection(collectionOptions);
nativeFontDescriptors = new Dictionary <string, CTFontDescriptor>();
var fontdescs = nativeFontCollection.GetMatchingFontDescriptors();
foreach (var fontdesc in fontdescs)
{
var name = fontdesc.GetAttribute(CTFontDescriptorAttributeKey.FamilyName).ToString();
if (!nativeFontDescriptors.ContainsKey(name))
{
nativeFontDescriptors.Add(name, fontdesc);
}
}
}
return(new List <string>(nativeFontDescriptors.Keys));
}
static void FontCollectionChecks ()
{
var d = CreateFontDescriptorFromFamilyAndTraits ("Arial", CTFontSymbolicTraits.Italic, 10.0f);
var defCollection = new CTFontCollection (new[]{d, d}, null);
var defDescriptors = defCollection.GetMatchingFontDescriptors ();
if (defDescriptors.Length != 4)
throw new InvalidOperationException ("unexpected font descriptor count");
var noDups = new CTFontCollection (new[]{d, d}, new CTFontCollectionOptions () {
RemoveDuplicates = true,
});
var noDupDescs = noDups.GetMatchingFontDescriptors ();
if (noDupDescs.Length != 2)
throw new InvalidOperationException ("unexpected font descriptor count");
var withDups = new CTFontCollection (new[]{d, d}, new CTFontCollectionOptions () {
RemoveDuplicates = false,
});
var withDupDescs = withDups.GetMatchingFontDescriptors ();
if (withDupDescs.Length != defDescriptors.Length)
throw new InvalidOperationException ("unexpected font descriptor count");
}
