public (bool success, string filePath) LoadFont(EmbeddedFont font)
{
try
{
var data = NSData.FromStream(font.ResourceStream);
var provider = new CGDataProvider(data);
var cGFont = CGFont.CreateFromProvider(provider);
var name = cGFont.PostScriptName;
if (CTFontManager.RegisterGraphicsFont(cGFont, out var error))
{
return(true, name);
}
else //Lets check if the font is already registered
{
var uiFont = NSFont.FromFontName(name, 10);
if (uiFont != null)
{
return(true, name);
}
}
Debug.WriteLine(error.Description);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
return(false, null);
}
internal static void loadFontIfNeeded(string fontName)
{
string loadedFont;
MaterialFontLoader.LoadedFonts.TryGetValue(fontName, out loadedFont);
if ((loadedFont == null) && (UIFont.FromName(name: fontName, size: 1) == null))
{
MaterialFontLoader.LoadedFonts[fontName] = fontName;
var bundle = NSBundle.FromClass(new Class(typeof(MaterialFontLoader)));
var identifier = bundle.BundleIdentifier;
var fontURL = bundle.GetUrlForResource(name: fontName, fileExtension: "ttf", subdirectory: "Fonts/Roboto");
if (fontURL != null)
{
var data = NSData.FromUrl(fontURL);
var provider = new CGDataProvider(data);
var font = CGFont.CreateFromProvider(provider);
NSError error;
if (!CoreText.CTFontManager.RegisterGraphicsFont(font, out error))
{
var errerrorDescription = error.Description;
throw new Exception(error.Description);
//new NSException(name: NSException.con, reason: error.Description, userInfo: error.UserInfo);
}
}
}
}
static UIFont LoadAndRegisterEmbeddedFont(string resourceId, nfloat size, Assembly assembly)
{
using (var stream = EmbeddedResourceCache.GetStream(resourceId, assembly))
{
if (stream == null)
{
Console.WriteLine("Could not open Embedded Resource [" + resourceId + "]");
return(null);
}
var data = NSData.FromStream(stream);
if (data == null)
{
Console.WriteLine("Could not retrieve data from Embedded Resource [" + resourceId + "].");
return(null);
}
var provider = new CGDataProvider(data);
var font = CGFont.CreateFromProvider(provider);
if (!CTFontManager.RegisterGraphicsFont(font, out NSError error))
{
if (error.Code != 105)
{
Console.WriteLine("Could load but failed to register [" + resourceId + "] font. Error messages:");
Console.WriteLine("\tdescription: " + error.Description);
throw new MissingMemberException("Failed to register [" + resourceId + "] font. Error messages in console.");
}
}
_embeddedResourceFonts.Add(resourceId, font.PostScriptName);
return(UIFont.FromName(font.PostScriptName, size));
}
}
public IFont LoadFontFromPath(string path, float sizeInPoints, FontStyle style = FontStyle.Regular)
{
CGFont cgFont = _installedFonts.GetOrAdd(path, _ =>
{
try
{
CGFont createdFont = CGFont.CreateFromProvider(new CGDataProvider(path));
NSError error;
if (!CTFontManager.RegisterGraphicsFont(createdFont, out error))
{
Debug.WriteLine($"Failed to load font from {path} (loading default font instead), error: {error.ToString()}");
return(null);
}
return(createdFont);
}
catch (ArgumentException e)
{
Debug.WriteLine($"Failed to load font from {path} (loading default font instead), exception: {e.ToString()}");
return(null);
}
});
if (cgFont == null)
{
return(LoadFont("Helvetica", sizeInPoints, style));
}
CTFont font = new CTFont(cgFont, sizeInPoints, CGAffineTransform.MakeIdentity());
font = setFontStyle(font, sizeInPoints, style);
return(new IOSFont(font, style, this));
}
private static UIFont GetFontFromFile(nfloat size, string file)
{
var fileName = Path.GetFileNameWithoutExtension(file);
var fileExtension = Path.GetExtension(file)?.Replace(".", "");
var url = NSBundle
.MainBundle
.GetUrlForResource(
name: fileName,
fileExtension: fileExtension,
subdirectory: "Fonts"
);
if (url == null)
{
return(null);
}
var fontData = NSData.FromUrl(url);
if (fontData == null)
{
return(null);
}
//iOS loads UIFonts based on the PostScriptName of the font file
using (var fontProvider = new CGDataProvider(fontData))
{
using (var font = CGFont.CreateFromProvider(fontProvider))
{
return(font != null?UIFont.FromName(font.PostScriptName, size) : null);
}
}
}
//We need to register fonts with iOS runtime
//Take a look at following article for more details
//https://marco.org/2012/12/21/ios-dynamic-font-loading
protected override async Task InstallFonts(IEnumerable <CustomFont> fonts)
{
NSError error = null;
foreach (var font in fonts)
{
//If font data is null we need to load it from a font file
if (font.Data == null)
{
var fontFile = await FontFolder.GetFileAsync(font.File);
using (var stream = await fontFile.OpenAsync(FileAccess.Read))
{
font.Data = new byte[stream.Length];
await stream.ReadAsync(font.Data, 0, font.Data.Length);
}
}
var fontData = NSData.FromArray(font.Data);
using (CGDataProvider provider = new CGDataProvider(fontData))
{
using (CGFont nativeFont = CGFont.CreateFromProvider(provider))
{
CTFontManager.RegisterGraphicsFont(nativeFont, out error);
if (error != null)
{
Console.WriteLine(error);
}
}
}
}
}
public (bool success, string?filePath) LoadFont(EmbeddedFont font)
{
try
{
if (font.ResourceStream == null)
{
throw new InvalidOperationException("ResourceStream was null.");
}
var data = NSData.FromStream(font.ResourceStream);
var provider = new CGDataProvider(data);
var cGFont = CGFont.CreateFromProvider(provider);
var name = cGFont.PostScriptName;
if (CTFontManager.RegisterGraphicsFont(cGFont, out var error))
{
return(true, name);
}
var uiFont = UIFont.FromName(name, 10);
if (uiFont != null)
{
return(true, name);
}
throw new NSErrorException(error);
}
catch (Exception ex)
{
_logger?.LogWarning(ex, "Unable register font {Font} with the system.", font.FontName);
}
return(false, null);
}
private static CGFont _CreateLatinMathCg()
{
var manifestProvider = IosResourceProviders.Manifest();
byte[] buffer = manifestProvider.ManifestContents(LatinMathFontName + ".otf");
using (CGDataProvider fontDataProvider = new CGDataProvider(buffer))
{
var r = CGFont.CreateFromProvider(fontDataProvider);
return(r);
}
}
public string?LoadFont(EmbeddedFont font)
{
try
{
CGFont?cgFont;
if (font.ResourceStream == null)
{
if (!System.IO.File.Exists(font.FontName))
{
throw new InvalidOperationException("ResourceStream was null.");
}
var provider = new CGDataProvider(font.FontName);
cgFont = CGFont.CreateFromProvider(provider);
}
else
{
var data = NSData.FromStream(font.ResourceStream);
if (data == null)
{
throw new InvalidOperationException("Unable to load font stream data.");
}
var provider = new CGDataProvider(data);
cgFont = CGFont.CreateFromProvider(provider);
}
if (cgFont == null)
{
throw new InvalidOperationException("Unable to load font from the stream.");
}
var name = cgFont.PostScriptName;
if (CTFontManager.RegisterGraphicsFont(cgFont, out var error))
{
return(name);
}
var uiFont = UIFont.FromName(name, 10);
if (uiFont != null)
{
return(name);
}
throw new NSErrorException(error);
}
catch (Exception ex)
{
_serviceProvider?.CreateLogger <EmbeddedFontLoader>()?.LogWarning(ex, "Unable register font {Font} with the system.", font.FontName);
}
return(null);
}
static AppleMathFont()
{
using var fontDataProvider = new CGDataProvider(
Foundation.NSData.FromStream(
new Resources.ManifestResourceProvider(
System.Reflection.Assembly.GetExecutingAssembly()
).ManifestStream(LatinMathFontName + ".otf")
)
);
LatinMathCG = CGFont.CreateFromProvider(fontDataProvider);
}
public static void LoadFont(string name, string format)
{
var bundle = NSBundle.FromClass(new Class(typeof(NBMaterialCircularActivityIndicator)));
var fontURL = bundle.GetUrlForResource(name, format);
var data = NSData.FromUrl(fontURL);
var provider = new CGDataProvider(data);
var font = CGFont.CreateFromProvider(provider);
NSError error;
if (!CTFontManager.RegisterGraphicsFont(font, out error))
{
throw new NSErrorException(error);
}
}
public IFont LoadFontFromPath(string path, float sizeInPoints, FontStyle style = FontStyle.Regular)
{
CGFont cgFont = _installedFonts.GetOrAdd(path, _ =>
{
CGFont createdFont = CGFont.CreateFromProvider(new CGDataProvider(path));
NSError error;
if (!CTFontManager.RegisterGraphicsFont(createdFont, out error))
{
Debug.WriteLine("Failed to load font from {0} (loading default font instead), error: {1}", path, error.ToString());
return null;
}
return createdFont;
});
if (cgFont == null) return LoadFont("Helvetica", sizeInPoints, style);
CTFont font = new CTFont(cgFont, sizeInPoints, CGAffineTransform.MakeIdentity());
font = setFontStyle(font, sizeInPoints, style);
return new IOSFont(font, style);
}
public (bool success, string filePath) LoadFont(EmbeddedFont font)
{
try
{
var data = NSData.FromStream(font.ResourceStream);
var provider = new CGDataProvider(data);
var cGFont = CGFont.CreateFromProvider(provider);
if (CTFontManager.RegisterGraphicsFont(cGFont, out var error))
{
return(true, null);
}
Debug.WriteLine(error.Description);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
return(false, null);
}
static void LoadFontFrom(string path)
{
try
{
CGDataProvider provider = new CGDataProvider(path);
CGFont font = CGFont.CreateFromProvider(provider);
if (font.NumberOfGlyphs > 0)
{
#if USE_WEAKREFERENCE
cachedFont = new WeakHandle <CGFont> (font);
#else
cachedFont = font;
#endif
}
}
catch (Exception ex)
{
Console.WriteLine("Failed to load font : " + ex);
throw ex;
}
}
/// <summary>
/// Init this instance to
/// </summary>
public static void Init()
{
NControl.Controls.FontLoader.LoadFonts(AppDomain.CurrentDomain.GetAssemblies(), (fontName, s) => {
var data = new byte[s.Length];
s.Read(data, 0, data.Length);
var dataProvider = new CGDataProvider(data, 0, data.Length);
var cgFont = CGFont.CreateFromProvider(dataProvider);
NSError error;
var registered = CTFontManager.RegisterGraphicsFont(cgFont, out error);
if (!registered)
{
// If the error code is 105 then the font we are trying to register is already registered
// We will not report this as an error.
if (error.Code != 105)
{
throw new ArgumentException("Error registering: " + fontName +
" (" + error.LocalizedDescription + ")");
}
}
});
}
void LoadFontFile(string fileName)
{
CTFont nativeFont;
var dpiSize = 0;
var ext = Path.GetExtension(fileName);
if (!String.IsNullOrEmpty(ext))
{
if (nativeFontDescriptors == null)
{
nativeFontDescriptors = new Dictionary <string, CTFontDescriptor> ();
}
//Try loading from Bundle first
var fontName = fileName.Substring(0, fileName.Length - ext.Length);
var pathForResource = NSBundle.MainBundle.PathForResource(fontName, ext.Substring(1));
NSUrl url;
if (!string.IsNullOrEmpty(pathForResource))
{
url = NSUrl.FromFilename(pathForResource);
}
else
{
url = NSUrl.FromFilename(fileName);
}
// We will not use CTFontManager.RegisterFontsForUrl (url, CTFontManagerScope.Process);
// here. The reason is that there is no way we can be sure that the font can be created to
// to identify the family name afterwards. So instead we will create a CGFont from a data provider.
// create CTFont to obtain the CTFontDescriptor, store family name and font descriptor to be accessed
// later.
try {
var dataProvider = new CGDataProvider(url.Path);
var cgFont = CGFont.CreateFromProvider(dataProvider);
try {
nativeFont = new CTFont(cgFont, dpiSize, null);
if (!nativeFontDescriptors.ContainsKey(nativeFont.FamilyName))
{
nativeFontDescriptors.Add(nativeFont.FamilyName, nativeFont.GetFontDescriptor());
NSError error;
var registered = CTFontManager.RegisterGraphicsFont(cgFont, out error);
if (!registered)
{
// If the error code is 105 then the font we are trying to register is already registered
// We will not report this as an error.
if (error.Code != 105)
{
throw new ArgumentException("Error registering: " + Path.GetFileName(fileName));
}
}
}
}
catch
{
// note: MS throw the same exception FileNotFoundException if the file exists but isn't a valid font file
throw new System.IO.FileNotFoundException(fileName);
}
}
catch (Exception)
{
// note: MS throw the same exception FileNotFoundException if the file exists but isn't a valid font file
throw new System.IO.FileNotFoundException(fileName);
}
}
}
internal static UIFont EmbeddedFont(string resourceId, nfloat size, Assembly assembly = null)
{
if (resourceId == "STIXGeneral")
{
resourceId = "Forms9Patch.Resources.Fonts.STIXGeneral.otf";
}
if (_embeddedResourceFonts.ContainsKey(resourceId))
{
string family = _embeddedResourceFonts[resourceId];
return(UIFont.FromName(family, size));
}
if (resourceId.Contains(".Resources.Fonts."))
{
// it's an Embedded Resource
if (!resourceId.ToLower().EndsWith(".ttf") && !resourceId.ToLower().EndsWith(".otf"))
{
throw new MissingMemberException("Embedded Font file names must end with \".ttf\" or \".otf\".");
}
lock (_loadFontLock)
{
// what is the assembly?
/*
* var assemblyName = resourceId.Substring(0, resourceId.IndexOf(".Resources.Fonts."));
* //var assembly = System.Reflection.Assembly.Load (assemblyName);
* var assembly = ReflectionExtensions.GetAssemblyByName(assemblyName);
* if (assembly == null)
* {
* // try using the current application assembly instead (as is the case with Shared Applications)
* assembly = ReflectionExtensions.GetAssemblyByName(assemblyName + ".Droid");
* //Console.WriteLine ("Assembly for Resource ID \"" + resourceID + "\" not found.");
* //return null;
* }
*/
// load it!
using (var stream = EmbeddedResourceCache.GetStream(resourceId, assembly))
{
if (stream == null)
{
Console.WriteLine("Could not open Embedded Resource [" + resourceId + "]");
return(null);
}
var data = NSData.FromStream(stream);
if (data == null)
{
Console.WriteLine("Could not retrieve data from Embedded Resource [" + resourceId + "].");
return(null);
}
var provider = new CGDataProvider(data);
var font = CGFont.CreateFromProvider(provider);
if (!CTFontManager.RegisterGraphicsFont(font, out NSError error))
{
if (error.Code != 105)
{
Console.WriteLine("Could load but failed to register [" + resourceId + "] font. Error messages:");
Console.WriteLine("\tdescription: " + error.Description);
throw new MissingMemberException("Failed to register [" + resourceId + "] font. Error messages in console.");
}
}
_embeddedResourceFonts.Add(resourceId, font.PostScriptName);
return(UIFont.FromName(font.PostScriptName, size));
}
}
}
return(null);
}
public void CreateFromProvider()
{
Assert.Null(CGFont.CreateFromProvider(null), "CreateFromProvider");
}
string LoadFontFile(string fileName)
{
CTFont nativeFont;
var dpiSize = 0;
var ext = Path.GetExtension(fileName);
if (!String.IsNullOrEmpty(ext))
{
if (nativeFontDescriptors == null)
{
nativeFontDescriptors = new Dictionary <string, string> ();
}
string fd = null;
if (nativeFontDescriptors.TryGetValue(fileName, out fd))
{
return(fd);
}
// We will not use CTFontManager.RegisterFontsForUrl (url, CTFontManagerScope.Process);
// here. The reason is that there is no way we can be sure that the font can be created to
// to identify the family name afterwards. So instead we will create a CGFont from a data provider.
// create CTFont to obtain the CTFontDescriptor, store family name and font descriptor to be accessed
// later.
try {
var dataProvider = GetFontDataProvider(fileName);
var cgFont = CGFont.CreateFromProvider(dataProvider);
try
{
nativeFont = new CTFont(cgFont, dpiSize, null);
if (!nativeFontDescriptors.ContainsKey(fileName))
{
nativeFontDescriptors.Add(fileName, nativeFont.PostScriptName);
NSError error;
var registered = CTFontManager.RegisterGraphicsFont(cgFont, out error);
if (!registered)
{
// If the error code is 105 then the font we are trying to register is already registered
// We will not report this as an error.
if (error.Code != 105)
{
throw new ArgumentException("Error registering: " + Path.GetFileName(fileName));
}
}
}
return(nativeFont.PostScriptName);
}
catch
{
// note: MS throw the same exception FileNotFoundException if the file exists but isn't a valid font file
throw new System.IO.FileNotFoundException(fileName);
}
}
catch (Exception)
{
// note: MS throw the same exception FileNotFoundException if the file exists but isn't a valid font file
throw new System.IO.FileNotFoundException(fileName);
}
}
return(fileName);
}
static internal CTFont CreateFont(string familyName, float emSize, FontStyle style,
byte gdiCharSet, bool gdiVerticalFont)
{
if (emSize <= 0)
{
throw new ArgumentException("emSize is less than or equal to 0, evaluates to infinity, or is not a valid number.", "emSize");
}
CTFont nativeFont;
// convert to 96 Dpi to be consistent with Windows
var dpiSize = emSize * dpiScale;
var ext = System.IO.Path.GetExtension(familyName);
if (!String.IsNullOrEmpty(ext) && ext.ToLower() == ".ttf")
{
var fontName = familyName.Substring(0, familyName.Length - ext.Length);
var path = CCApplication.SharedApplication.Game.Content.RootDirectory + Path.DirectorySeparatorChar + fontName;
var pathForResource = NSBundle.MainBundle.PathForResource(path, ext.Substring(1));
try {
var dataProvider = new CGDataProvider(pathForResource);
var cgFont = CGFont.CreateFromProvider(dataProvider);
try {
nativeFont = new CTFont(cgFont, dpiSize, null);
}
catch
{
nativeFont = new CTFont("Helvetica", dpiSize);
}
}
catch (Exception)
{
try {
nativeFont = new CTFont(Path.GetFileNameWithoutExtension(familyName), dpiSize);
}
catch
{
nativeFont = new CTFont("Helvetica", dpiSize);
}
CCLog.Log(string.Format("Could not load font: {0} so will use default {1}.", familyName, nativeFont.DisplayName));
}
}
else
{
try {
nativeFont = new CTFont(familyName, dpiSize);
}
catch
{
nativeFont = new CTFont("Helvetica", dpiSize);
}
}
CTFontSymbolicTraits tMask = CTFontSymbolicTraits.None;
if ((style & FontStyle.Bold) == FontStyle.Bold)
{
tMask |= CTFontSymbolicTraits.Bold;
}
if ((style & FontStyle.Italic) == FontStyle.Italic)
{
tMask |= CTFontSymbolicTraits.Italic;
}
strikeThrough = (style & FontStyle.Strikeout) == FontStyle.Strikeout;
underLine = (style & FontStyle.Underline) == FontStyle.Underline;
var nativeFont2 = nativeFont.WithSymbolicTraits(dpiSize, tMask, tMask);
if (nativeFont2 != null)
{
nativeFont = nativeFont2;
}
return(nativeFont);
}
