private Typeface TrySetFont(string fontName)
{
try
{
return(Typeface.CreateFromAsset(Context.Assets, "fonts/" + fontName));
}
catch (Exception ex)
{
Console.WriteLine("not found in assets. Exception: {0}", ex);
try
{
return(Typeface.CreateFromFile("fonts/" + fontName));
}
catch (Exception ex1)
{
Console.WriteLine("not found by file. Exception: {0}", ex1);
return(Typeface.Default);
}
}
}
public static Typeface LoadTypefaceFromRaw(Context context, int resource)
{
Typeface tf = null;
Stream inputStream = context.Resources.OpenRawResource(resource);
string path = context.FilesDir + "/judo_fonts";
if (!Directory.Exists(path))
{
try {
Directory.CreateDirectory(path);
} catch (Exception) {
return(null);
}
}
string outPath = path + "/courier.ttf";
if (File.Exists(outPath))
{
tf = Typeface.CreateFromFile(outPath);
}
else
{
try {
byte[] buffer = new byte[inputStream.Length];
BufferedStream bufferedStream = new BufferedStream(File.Open(outPath, FileMode.CreateNew));
int length = 0;
while ((length = inputStream.Read(buffer, 0, buffer.Length)) > 0)
{
bufferedStream.Write(buffer, 0, length);
}
bufferedStream.Close();
tf = Typeface.CreateFromFile(outPath);
} catch (Exception) {
return(null);
}
}
return(tf);
}
private Tuple <Typeface, TypefaceStyle?> GetTypefaceFromAttrs(Typeface typeface, string fontFamily, string styleName)
{
if (fontFamily != null)
{
Typeface normalTypeface = null;
if (fontFamily.Contains(".ttf") || fontFamily.Contains(".otf"))
{
// should be a custom font to try to get from font assets or file
// try to get from assets
try
{
normalTypeface = Typeface.CreateFromAsset(Context.Assets, fontFamily);
}
catch
{
// try to get from files
try
{
normalTypeface = Typeface.CreateFromFile(fontFamily);
}
catch
{
throw new Exception("Neither Font Asset nor Font File found at " + fontFamily);
}
}
}
else
{
// should be a system font or a font-family xml resource
normalTypeface = Typeface.Create(fontFamily, TypefaceStyle.Normal);
}
// if typeface found
if (normalTypeface != null)
{
return(ResolveStyleAndSetTypeface(normalTypeface, styleName));
}
}
return(ResolveStyleAndSetTypeface(typeface, styleName));
}
private Typeface TrySetFont(string fontName)
{
try
{
return(Typeface.CreateFromAsset(Forms.Context.Assets, "fonts/" + fontName));
}
catch (Exception ex) {
Shared.Services.Logs.Insights.Send("TrySetFont", ex);
Console.WriteLine("not found in assets. Exception: {0}", ex);
try
{
return(Typeface.CreateFromFile("fonts/" + fontName));
}
catch (Exception ex1)
{
Console.WriteLine("not found by file. Exception: {0}", ex1);
return(Typeface.Default);
}
}
}
/// <summary>
/// Load the FA font from assets
/// </summary>
/// <param name="fontName"></param>
/// <returns></returns>
private Typeface TrySetFont(string fontName)
{
try
{
var tp = Typeface.CreateFromAsset(Context.Assets, "fonts/" + fontName);
return(tp);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(string.Format("not found in assets. Exception: {0}", ex));
try
{
return(Typeface.CreateFromFile("fonts/" + fontName));
}
catch (Exception ex1)
{
System.Diagnostics.Debug.WriteLine(string.Format("not found by file. Exception: {0}", ex1));
return(Typeface.Default);
}
}
}
/// <summary>
/// Tries the set font.
/// </summary>
/// <param name="fontName">Name of the font.</param>
/// <returns>Typeface.</returns>
private Typeface TrySetFont(string fontName)
{
Typeface tf = Typeface.Default;
try
{
return(FontCache.GetTypeFace(fontName));
}
catch (Exception ex)
{
Console.Write("not found in assets {0}", ex);
try
{
tf = Typeface.CreateFromFile(fontName);
return(tf);
}
catch (Exception ex1)
{
Console.Write(ex1);
return(Typeface.Default);
}
}
}
static Typeface LoadAndRegisterEmbeddedFont(string resouceId, Assembly assembly)
{
using (var inputStream = EmbeddedResourceCache.GetStream(resouceId, assembly))
{
if (inputStream == null)
{
System.Console.WriteLine("Embedded Resource for FontFamily \"" + resouceId + "\" not found.");
return(null);
}
var cachedFontDir = new File(CustomFontDirRoot + "/ResourceFonts");
if (!cachedFontDir.Exists())
{
cachedFontDir.Mkdir();
}
var cachedFontFile = new File(cachedFontDir, resouceId);
using (var outputStream = new FileOutputStream(cachedFontFile))
{
const int bufferSize = 1024;
var buffer = new byte[bufferSize];
int length = -1;
while ((length = inputStream.Read(buffer, 0, bufferSize)) > 0)
{
outputStream.Write(buffer, 0, length);
}
}
Typeface typeface = Typeface.CreateFromFile(cachedFontFile);
if (typeface == null)
{
System.Console.WriteLine("Embedded Resource font file (" + resouceId + ") could not be loaded as an Android Typeface.");
return(null);
}
_fontFiles.Add(resouceId, cachedFontFile.AbsolutePath);
return(typeface);
}
}
/// <summary>
/// Tries the set font.
/// </summary>
/// <param name="fontName">Name of the font.</param>
/// <returns>Typeface.</returns>
private Typeface TrySetFont(string fontName)
{
var typeface = Typeface.Default;
try
{
typeface = Typeface.CreateFromAsset(_context.Assets, fontName);
}
catch (Exception ex)
{
Console.WriteLine("not found in assets {0}", ex);
try
{
typeface = Typeface.CreateFromFile(fontName);
}
catch (Exception ex1)
{
Console.WriteLine(ex1);
}
}
return(typeface);
}
public static Typeface ToExtendedTypeface(this string fontFamily, double fontSize, string namedSize, int fontAttributes, Context context)
{
Typeface typeface = null;
var hashKey = ToHasmapKeyWithFontFamily(fontFamily, fontSize, namedSize, fontAttributes);
typeface = TypefaceCache.SharedCache.RetrieveTypeface(hashKey);
if (typeface == null && !string.IsNullOrEmpty(fontFamily))
{
string filename = fontFamily;
if (filename.LastIndexOf(".", System.StringComparison.Ordinal) != filename.Length - 4)
{
filename = string.Format("{0}.ttf", filename);
}
try
{
var path = "fonts/" + filename;
typeface = Typeface.CreateFromAsset(context.Assets, path);
}
catch
{
try
{
typeface = Typeface.CreateFromFile("fonts/" + filename);
}
catch
{
}
}
}
if (typeface == null)
{
typeface = Typeface.Default;
}
TypefaceCache.SharedCache.StoreTypeface(hashKey, typeface);
return(typeface);
}
/// <summary>
/// This method returns typeface for given typeface using following rules:
/// 1. Lookup in the cache
/// 2. If not found, look in the assets in the fonts folder. Save your font under its FontFamily name.
/// If no extension is written in the family name .ttf is asumed
/// 3. If not found look in the files under fonts/ folder
/// If no extension is written in the family name .ttf is asumed
/// 4. If not found, try to return typeface from Xamarin.Forms ToTypeface() method
/// 5. If not successfull, return Typeface.Default
/// </summary>
/// <returns>The extended typeface.</returns>
/// <param name="font">Font</param>
/// <param name="context">Android Context</param>
public static Typeface ToExtendedTypeface(this Font font, Context context)
{
Typeface typeface = null;
//1. Lookup in the cache
var hashKey = font.ToHasmapKey();
typeface = TypefaceCache.SharedCache.RetrieveTypeface(hashKey);
#if DEBUG
if (typeface != null)
{
Console.WriteLine("Typeface for font {0} found in cache", font);
}
#endif
//2. If not found, try custom asset folder
if (typeface == null && !string.IsNullOrEmpty(font.FontFamily))
{
string filename = font.FontFamily;
//if no extension given then assume and add .ttf
if (filename.LastIndexOf(".", System.StringComparison.Ordinal) != filename.Length - 4)
{
filename = string.Format("{0}.ttf", filename);
}
try
{
var path = "fonts/" + filename;
#if DEBUG
Console.WriteLine("Lookking for font file: {0}", path);
#endif
typeface = Typeface.CreateFromAsset(context.Assets, path);
#if DEBUG
Console.WriteLine("Found in assets and cached.");
#endif
}
catch (Exception ex)
{
#if DEBUG
Console.WriteLine("not found in assets. Exception: {0}", ex);
Console.WriteLine("Trying creation from file");
#endif
try
{
typeface = Typeface.CreateFromFile("fonts/" + filename);
#if DEBUG
Console.WriteLine("Found in file and cached.");
#endif
}
catch (Exception ex1)
{
#if DEBUG
Console.WriteLine("not found by file. Exception: {0}", ex1);
Console.WriteLine("Trying creation using Xamarin.Forms implementation");
#endif
}
}
}
//3. If not found, fall back to default Xamarin.Forms implementation to load system font
if (typeface == null)
{
typeface = font.ToTypeface();
}
if (typeface == null)
{
#if DEBUG
Console.WriteLine("Falling back to default typeface");
#endif
typeface = Typeface.Default;
}
//Store in cache
TypefaceCache.SharedCache.StoreTypeface(hashKey, typeface);
return(typeface);
}
public static Typeface TypefaceForFontFamily(string fontFamily, Assembly assembly = null)
{
//string fontFilePath;
if (fontFamily == null)
{
//return Typeface.Default;
return(null);
}
Typeface result;
if (fontFamily.ToLower() == "monospace")
{
result = TrySystemFont("monospace");
if (result != null)
{
return(result);
}
result = TrySystemFont("Droid Sans Mono");
if (result != null)
{
return(result);
}
}
if (fontFamily.ToLower() == "serif")
{
result = TrySystemFont("serif");
if (result != null)
{
return(result);
}
result = TrySystemFont("Droid Serif");
if (result != null)
{
return(result);
}
}
if (fontFamily.ToLower() == "sans-serif")
{
result = TrySystemFont("sans-serif");
if (result != null)
{
return(result);
}
result = TrySystemFont("normal");
if (result != null)
{
return(result);
}
result = TrySystemFont("Roboto");
if (result != null)
{
return(result);
}
result = TrySystemFont("Droid Sans");
if (result != null)
{
return(result);
}
}
result = TrySystemFont(fontFamily);
if (result != null)
{
return(result);
}
if (fontFamily.Contains(".Resources.Fonts."))
{
// it's an Embedded Resource
if (!fontFamily.ToLower().EndsWith(".ttf") && !fontFamily.ToLower().EndsWith(".otf"))
{
throw new InvalidObjectException("Embedded Font file names must end with \".ttf\" or \".otf\".");
}
// what is the assembly?
/*
* var assemblyName = fontFamily.Substring(0, fontFamily.IndexOf(".Resources.Fonts."));
*
* //var assembly = System.Reflection.Assembly.Load (assemblyName);
* var assembly = ReflectionExtensions.GetAssemblyByName(assemblyName) ?? Forms9Patch.Droid.Settings.ApplicationAssembly;
*
* if (assembly == null)
* {
* // try using the current application assembly instead (as is the case with Shared Applications)
* assembly = ReflectionExtensions.GetAssemblyByName(assemblyName + ".Droid");
* ///System.Console.WriteLine ("Assembly for FontFamily \"" + fontFamily + "\" not found.");
* //return null;
* }
*/
// move it to the Application's CustomFontDirRoot
using (var inputStream = EmbeddedResourceCache.GetStream(fontFamily, assembly))
{
if (inputStream == null)
{
System.Console.WriteLine("Embedded Resource for FontFamily \"" + fontFamily + "\" not found.");
return(null);
}
var cachedFontDir = new File(CustomFontDirRoot + "/ResourceFonts");
if (!cachedFontDir.Exists())
{
cachedFontDir.Mkdir();
}
var cachedFontFile = new File(cachedFontDir, fontFamily);
using (var outputStream = new FileOutputStream(cachedFontFile))
{
const int bufferSize = 1024;
var buffer = new byte[bufferSize];
int length = -1;
while ((length = inputStream.Read(buffer, 0, bufferSize)) > 0)
{
outputStream.Write(buffer, 0, length);
}
}
Typeface typeface = Typeface.CreateFromFile(cachedFontFile);
if (typeface == null)
{
System.Console.WriteLine("Embedded Resource font file (" + fontFamily + ") could not be loaded as an Android Typeface.");
return(null);
}
_fontFiles.Add(fontFamily, cachedFontFile.AbsolutePath);
return(typeface);
}
}
return(null);
}
public Typeface GetTypeface(string name)
{
if (name == null || SystemFont.Equals(name))
{
return(Typeface.Default);
}
if (SystemBoldFont.Equals(name))
{
return(Typeface.DefaultBold);
}
if (GetFontStyleById(name) is NativeFontStyle fontStyle)
{
if (!_typeFaces.TryGetValue(name, out var typeface))
{
string path;
if (fontStyle.Resource)
{
var resource = fontStyle.Path;
var resourceParts = resource.Split('.');
var fileName = $"{resourceParts[resourceParts.Length - 2]}.{resourceParts[resourceParts.Length - 1]}";
path = System.IO.Path.Combine(UserFontsPath, fileName);
if (!File.Exists(path))
{
if (!Directory.Exists(UserFontsPath))
{
Directory.CreateDirectory(UserFontsPath);
}
var assembly = typeof(NativeFontService).Assembly;
using (var stream = assembly.GetManifestResourceStream(resource))
{
using (var outputStream = new FileStream(path, FileMode.Create, FileAccess.Write))
{
stream?.CopyTo(outputStream);
}
}
}
}
else
{
path = fontStyle.Path;
}
try
{
typeface = Typeface.CreateFromFile(path);
if (typeface != null)
{
_typeFaces[name] = typeface;
}
}
catch (Java.Lang.RuntimeException exc)
{
Logger.Info("Unable to load font from the file: " + fontStyle.Path, exc);
}
catch (Exception exc)
{
Logger.Info("Unable to load font from the file: " + fontStyle.Path, exc);
}
}
if (typeface != null)
{
return(typeface);
}
}
return(Typeface.Default);
}
