public CharacterCodeToGlyphIdMapper(TrueTypeFontProgram font)
{
var microsoftUnicode = font.TableRegister.CMapTable.SubTables.FirstOrDefault(x => x.PlatformId == TrueTypeCMapPlatform.Windows && x.EncodingId == 1);
cmapSubTable = microsoftUnicode ?? font.TableRegister.CMapTable.SubTables.FirstOrDefault(x => x.PlatformId == TrueTypeCMapPlatform.Macintosh && x.EncodingId == 0);
this.font = font ?? throw new ArgumentNullException(nameof(font));
}
public TrueTypeStandard14FallbackSimpleFont(NameToken name, FontMetrics fontMetrics, Encoding encoding, TrueTypeFontProgram font)
{
this.fontMetrics = fontMetrics;
this.encoding = encoding ?? throw new ArgumentNullException(nameof(encoding));
this.font = font;
Name = name;
}
private bool TryGetTrueTypeFont(string name, SystemFontRecord record, out TrueTypeFontProgram font)
{
font = null;
if (record.Type == SystemFontType.TrueType)
{
if (readFiles.Contains(record.Path))
{
return(false);
}
return(TryReadFile(record.Path, true, name, out font));
}
return(false);
}
public TrueTypeSimpleFont(NameToken name,
FontDescriptor descriptor,
[CanBeNull] CMap toUnicodeCMap,
[CanBeNull] Encoding encoding,
[CanBeNull] TrueTypeFontProgram fontProgram,
int firstCharacter,
decimal[] widths)
{
this.descriptor = descriptor;
this.encoding = encoding;
this.fontProgram = fontProgram;
this.firstCharacter = firstCharacter;
this.widths = widths;
Name = name;
IsVertical = false;
ToUnicode = new ToUnicodeCMap(toUnicodeCMap);
}
private static decimal CalculateGlyphSpaceTextWidth(string text, TrueTypeFontProgram font)
{
var width = 0m;
for (var i = 0; i < text.Length; i++)
{
var c = text[i];
if (!font.TryGetBoundingBox(c, out var rect))
{
throw new InvalidOperationException($"The font does not contain a character: {c}.");
}
width += rect.Width;
}
return(width);
}
private bool TryReadFile(string fileName, bool readNameFirst, string fontName, out TrueTypeFontProgram font)
{
font = null;
readFiles.Add(fileName);
var bytes = File.ReadAllBytes(fileName);
var data = new TrueTypeDataBytes(new ByteArrayInputBytes(bytes));
if (readNameFirst)
{
var name = trueTypeFontParser.GetNameTable(data);
if (name == null)
{
return(false);
}
var fontNameFromFile = name.GetPostscriptName() ?? name.FontName;
nameToFileNameMap[fontNameFromFile] = fileName;
if (!string.Equals(fontNameFromFile, fontName, StringComparison.OrdinalIgnoreCase))
{
return(false);
}
}
data.Seek(0);
font = trueTypeFontParser.Parse(data);
var psName = font.TableRegister.NameTable?.GetPostscriptName() ?? font.Name;
lock (CacheLock)
{
if (!Cache.ContainsKey(psName))
{
Cache[psName] = font;
}
}
return(true);
}
private bool TryReadFile(string fileName, bool readNameFirst, string fontName, out TrueTypeFontProgram font)
{
font = null;
readFiles.Add(fileName);
using (var fileStream = File.OpenRead(fileName))
{
var input = new StreamInputBytes(fileStream);
var data = new TrueTypeDataBytes(input);
if (readNameFirst)
{
var name = trueTypeFontParser.GetNameTable(data);
if (name == null)
{
return(false);
}
var fontNameFromFile = name.GetPostscriptName() ?? name.FontName;
nameToFileNameMap[fontNameFromFile] = fileName;
if (!string.Equals(fontNameFromFile, fontName, StringComparison.OrdinalIgnoreCase))
{
return(false);
}
}
font = trueTypeFontParser.Parse(data);
var psName = font.TableRegister.NameTable?.GetPostscriptName() ?? font.Name;
if (!cache.ContainsKey(psName))
{
cache[psName] = font;
}
return(true);
}
}
public TrueTypeWritingFont(TrueTypeFontProgram font, IReadOnlyList <byte> fontFileBytes)
{
this.font = font;
this.fontFileBytes = fontFileBytes;
}
public CharacterCodeToGlyphIdMapper(TrueTypeFontProgram font)
{
this.font = font ?? throw new ArgumentNullException(nameof(font));
}
public FontStored(AddedFont fontKey, TrueTypeFontProgram fontProgram)
{
FontKey = fontKey;
FontProgram = fontProgram;
}
