/// <summary>
/// Registers the font face.
/// </summary>
public static XFontSource RegisterFontFace(byte[] fontBytes)
{
try
{
Lock.EnterFontFactory();
ulong key = FontHelper.CalcChecksum(fontBytes);
XFontSource fontSource;
if (FontSourcesByKey.TryGetValue(key, out fontSource))
{
throw new InvalidOperationException("Font face already registered.");
}
fontSource = XFontSource.GetOrCreateFrom(fontBytes);
Debug.Assert(FontSourcesByKey.ContainsKey(key));
Debug.Assert(fontSource.Fontface != null);
//fontSource.Fontface = new OpenTypeFontface(fontSource);
//FontSourcesByKey.Add(checksum, fontSource);
//FontSourcesByFontName.Add(fontSource.FontName, fontSource);
XGlyphTypeface glyphTypeface = new XGlyphTypeface(fontSource);
FontSourcesByName.Add(glyphTypeface.Key, fontSource);
GlyphTypefaceCache.AddGlyphTypeface(glyphTypeface);
return(fontSource);
}
finally { Lock.ExitFontFactory(); }
}
internal OpenTypeDescriptor(string fontDescriptorKey, string idName, byte[] fontData)
: base(fontDescriptorKey)
{
try
{
FontFace = XFontSource.GetOrCreateFrom(fontData).Fontface;
// Try to get real name form name table
if (idName.Contains("XPS-Font-") && FontFace.name != null && FontFace.name.Name.Length != 0)
{
string tag = String.Empty;
if (idName.IndexOf('+') == 6)
{
tag = idName.Substring(0, 6);
}
idName = tag + "+" + FontFace.name.Name;
if (FontFace.name.Style.Length != 0)
{
idName += "," + FontFace.name.Style;
}
//idName = idName.Replace(" ", "");
}
FontName = idName;
Initialize();
}
catch (Exception)
{
GetType();
throw;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="OpenTypeFontface"/> class.
/// </summary>
public OpenTypeFontface(byte[] data, string faceName)
{
_fullFaceName = faceName;
// Always save a copy of the font bytes.
FontSource = XFontSource.GetOrCreateFrom(data);
Read();
}
internal static XFontSource CreateFontSource(string familyName, FontResolvingOptions fontResolvingOptions, string typefaceKey)
{
if (string.IsNullOrEmpty(typefaceKey))
{
typefaceKey = XGlyphTypeface.ComputeKey(familyName, fontResolvingOptions);
}
if (fonts == null)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load("/system/etc/fonts.xml");
fonts = new Dictionary <AndroidFontInfo, string>();
var familyset = xmlDoc.DocumentElement;
foreach (XmlNode family in familyset.ChildNodes)
{
if (family.Attributes != null && family.Attributes["name"] != null)
{
foreach (XmlNode font in family.ChildNodes)
{
if (font.Attributes["style"] != null && font.Attributes["weight"] != null)
{
var id = new AndroidFontInfo
{
FamilyName = family.Attributes["name"].Value,
Italic = font.Attributes["style"].Value == "italic",
Bold = int.Parse(font.Attributes["weight"].Value) > 500,
};
fonts[id] = font.ChildNodes[0].Value;
}
}
}
}
}
XFontSource fontSource = null;
string path;
var searchId = new AndroidFontInfo
{
FamilyName = familyName,
Italic = fontResolvingOptions.IsItalic,
Bold = fontResolvingOptions.IsBold,
};
if (fonts.TryGetValue(searchId, out path))
{
fontSource = XFontSource.GetOrCreateFrom(typefaceKey, File.ReadAllBytes(Path.Combine("/system/fonts/", path)));
}
return(fontSource);
}
//// Suffix for internal face names to indicate that the font data comes from the platform
//// and not from the users font resolver.
//public const string PlatformTag = "platform:";
/// <summary>
/// Converts specified information about a required typeface into a specific font.
/// </summary>
/// <param name="familyName">Name of the font family.</param>
/// <param name="fontResolvingOptions">The font resolving options.</param>
/// <param name="typefaceKey">Typeface key if already known by caller, null otherwise.</param>
/// <returns>
/// Information about the typeface, or null if no typeface can be found.
/// </returns>
public static FontResolverInfo ResolveTypeface(string familyName, FontResolvingOptions fontResolvingOptions, string typefaceKey)
{
if (string.IsNullOrEmpty(typefaceKey))
{
typefaceKey = XGlyphTypeface.ComputeKey(familyName, fontResolvingOptions);
}
try
{
Lock.EnterFontFactory();
// Was this typeface requested before?
FontResolverInfo fontResolverInfo;
if (FontResolverInfosByName.TryGetValue(typefaceKey, out fontResolverInfo))
{
return(fontResolverInfo);
}
// Case: This typeface was not resolved before.
// Is there a custom font resolver available?
IFontResolver customFontResolver = GlobalFontSettings.FontResolver;
if (customFontResolver != null)
{
// Case: Use custom font resolver.
fontResolverInfo = customFontResolver.ResolveTypeface(familyName, fontResolvingOptions.IsBold, fontResolvingOptions.IsItalic);
// If resolved by custom font resolver register info and font source.
if (fontResolverInfo != null && !(fontResolverInfo is PlatformFontResolverInfo))
{
string resolverInfoKey = fontResolverInfo.Key;
FontResolverInfo existingFontResolverInfo;
if (FontResolverInfosByName.TryGetValue(resolverInfoKey, out existingFontResolverInfo))
{
// Case: A new typeface was resolved with the same info as a previous one.
// Discard new object an reuse previous one.
fontResolverInfo = existingFontResolverInfo;
// Associate with typeface key.
FontResolverInfosByName.Add(typefaceKey, fontResolverInfo);
#if DEBUG
// The font source should exist.
Debug.Assert(FontSourcesByName.ContainsKey(fontResolverInfo.FaceName));
#endif
}
else
{
// Case: No such font resolver info exists.
// Add to both dictionaries.
FontResolverInfosByName.Add(typefaceKey, fontResolverInfo);
Debug.Assert(resolverInfoKey == fontResolverInfo.Key);
FontResolverInfosByName.Add(resolverInfoKey, fontResolverInfo);
// Create font source if not yet exists.
XFontSource previousFontSource;
if (FontSourcesByName.TryGetValue(fontResolverInfo.FaceName, out previousFontSource))
{
// Case: The font source exists, because a previous font resolver info comes
// with the same face name, but was different in style simulation flags.
// Nothing to do.
}
else
{
// Case: Get font from custom font resolver and create font source.
byte[] bytes = customFontResolver.GetFont(fontResolverInfo.FaceName);
XFontSource fontSource = XFontSource.GetOrCreateFrom(bytes);
// Add font source's font resolver name if it is different to the face name.
if (string.Compare(fontResolverInfo.FaceName, fontSource.FontName, StringComparison.OrdinalIgnoreCase) != 0)
{
FontSourcesByName.Add(fontResolverInfo.FaceName, fontSource);
}
}
}
}
}
else
{
// Case: There was no custom font resolver set.
// Use platform font resolver.
// If it was successful resolver info and font source are cached
// automatically by PlatformFontResolver.ResolveTypeface.
fontResolverInfo = PlatformFontResolver.ResolveTypeface(familyName, fontResolvingOptions, typefaceKey);
}
// Return value is null if the typeface could not be resolved.
// In this case PDFsharp stops.
return(fontResolverInfo);
}
finally { Lock.ExitFontFactory(); }
}
internal unsafe static XFontSource CreateFontSource(string familyName, FontResolvingOptions fontResolvingOptions, string typefaceKey)
{
if (string.IsNullOrEmpty(typefaceKey))
{
typefaceKey = XGlyphTypeface.ComputeKey(familyName, fontResolvingOptions);
}
var descriptor = UIFont.FromName(familyName, 20.0f).FontDescriptor;
UIFontDescriptorSymbolicTraits traits = 0;
if (fontResolvingOptions.IsItalic)
{
traits |= UIFontDescriptorSymbolicTraits.Italic;
}
if (fontResolvingOptions.IsBold)
{
traits |= UIFontDescriptorSymbolicTraits.Bold;
}
var uifont = UIFont.FromDescriptor(descriptor.CreateWithTraits(traits), 20.0f);
var cgFont = CGFont.CreateWithFontName(uifont.Name);
IntPtr tags = CGFontCopyTableTags(cgFont.Handle);
nint tableCount = CFArrayGetCount(tags);
nint totalSize = sizeof(FontHeader) + sizeof(TableEntry) * tableCount;
for (int index = 0; index < tableCount; ++index)
{
nint tableSize = 0;
int aTag = (int)CFArrayGetValueAtIndex(tags, index);
IntPtr tableDataRef = CGFontCopyTableForTag(cgFont.Handle, aTag);
if (tableDataRef != IntPtr.Zero)
{
tableSize = CFDataGetLength(tableDataRef);
CFRelease(tableDataRef);
}
totalSize += (tableSize + 3) & ~3;
}
var data = new byte[totalSize];
fixed(byte *dataStart = data)
{
byte *dataPtr = dataStart;
UInt16 entrySelector = 0;
UInt16 searchRange = 1;
while (searchRange < tableCount >> 1)
{
entrySelector++;
searchRange <<= 1;
}
searchRange <<= 4;
UInt16 rangeShift = (UInt16)((tableCount << 4) - searchRange);
FontHeader *offsetTable = (FontHeader *)dataPtr;
offsetTable->fVersion = (Int32)SwapBytes((UInt16)1);
offsetTable->fNumTables = SwapBytes((UInt16)tableCount);
offsetTable->fSearchRange = SwapBytes((UInt16)searchRange);
offsetTable->fEntrySelector = SwapBytes((UInt16)entrySelector);
offsetTable->fRangeShift = SwapBytes((UInt16)rangeShift);
dataPtr += sizeof(FontHeader);
TableEntry *entry = (TableEntry *)dataPtr;
dataPtr += sizeof(TableEntry) * tableCount;
for (int index = 0; index < tableCount; ++index)
{
int aTag = (int)CFArrayGetValueAtIndex(tags, index);
IntPtr tableDataRef = CGFontCopyTableForTag(cgFont.Handle, aTag);
nint tableSize = 0;
if (tableDataRef != IntPtr.Zero)
{
tableSize = CFDataGetLength(tableDataRef);
Buffer.MemoryCopy((byte *)CFDataGetBytePtr(tableDataRef), dataPtr, tableSize, tableSize);
entry->fTag = SwapBytes((UInt32)aTag);
entry->fCheckSum = SwapBytes(CalcTableCheckSum((UInt32 *)dataPtr, tableSize));
UInt32 offset = (UInt32)(dataPtr - dataStart);
entry->fOffset = SwapBytes((UInt32)offset);
entry->fLength = SwapBytes((UInt32)tableSize);
CFRelease(tableDataRef);
}
dataPtr += (tableSize + 3) & ~3;
++entry;
}
}
var fontSource = XFontSource.GetOrCreateFrom(typefaceKey, data);
return(fontSource);
}