public IFont Generate(DictionaryToken dictionary)
{
var boundingBox = GetBoundingBox(dictionary);
var fontMatrix = GetFontMatrix(dictionary);
var firstCharacter = FontDictionaryAccessHelper.GetFirstCharacter(dictionary);
var lastCharacter = FontDictionaryAccessHelper.GetLastCharacter(dictionary);
var widths = FontDictionaryAccessHelper.GetWidths(scanner, dictionary);
Encoding encoding = encodingReader.Read(dictionary);
CMap toUnicodeCMap = null;
if (dictionary.TryGet(NameToken.ToUnicode, out var toUnicodeObj))
{
var toUnicode = DirectObjectFinder.Get <StreamToken>(toUnicodeObj, scanner);
var decodedUnicodeCMap = toUnicode?.Decode(filterProvider);
if (decodedUnicodeCMap != null)
{
toUnicodeCMap = CMapCache.Parse(new ByteArrayInputBytes(decodedUnicodeCMap));
}
}
return(new Type3Font(NameToken.Type3, boundingBox, fontMatrix, encoding, firstCharacter,
lastCharacter, widths, toUnicodeCMap));
}
public IFont Generate(DictionaryToken dictionary, bool isLenientParsing)
{
var firstCharacter = FontDictionaryAccessHelper.GetFirstCharacter(dictionary);
var lastCharacter = FontDictionaryAccessHelper.GetLastCharacter(dictionary);
var widths = FontDictionaryAccessHelper.GetWidths(pdfScanner, dictionary, isLenientParsing);
var descriptor = FontDictionaryAccessHelper.GetFontDescriptor(pdfScanner, fontDescriptorFactory, dictionary, isLenientParsing);
// TODO: use the parsed font fully.
var font = ParseTrueTypeFont(descriptor);
var name = FontDictionaryAccessHelper.GetName(pdfScanner, dictionary, descriptor, isLenientParsing);
CMap toUnicodeCMap = null;
if (dictionary.TryGet(NameToken.ToUnicode, out var toUnicodeObj))
{
var toUnicode = DirectObjectFinder.Get <StreamToken>(toUnicodeObj, pdfScanner);
var decodedUnicodeCMap = toUnicode.Decode(filterProvider);
if (decodedUnicodeCMap != null)
{
toUnicodeCMap = cMapCache.Parse(new ByteArrayInputBytes(decodedUnicodeCMap), isLenientParsing);
}
}
Encoding encoding = encodingReader.Read(dictionary, isLenientParsing, descriptor);
return(new TrueTypeSimpleFont(name, firstCharacter, lastCharacter, widths, descriptor, toUnicodeCMap, encoding, font));
}
public IFont Generate(DictionaryToken dictionary, bool isLenientParsing)
{
var usingStandard14Only = !dictionary.ContainsKey(NameToken.FirstChar) || !dictionary.ContainsKey(NameToken.Widths);
if (usingStandard14Only)
{
// TODO: some fonts combine standard 14 font with other metrics.
if (!dictionary.TryGet(NameToken.BaseFont, out var baseFontToken) ||
!(baseFontToken is NameToken standard14Name))
{
throw new InvalidFontFormatException($"The Type 1 font did not contain a first character entry but also did not reference a standard 14 font: {dictionary}");
}
var metrics = Standard14.GetAdobeFontMetrics(standard14Name.Data);
return(new Type1Standard14Font(metrics));
}
var firstCharacter = FontDictionaryAccessHelper.GetFirstCharacter(dictionary);
var lastCharacter = FontDictionaryAccessHelper.GetLastCharacter(dictionary);
var widths = FontDictionaryAccessHelper.GetWidths(pdfScanner, dictionary, isLenientParsing);
var descriptor = FontDictionaryAccessHelper.GetFontDescriptor(pdfScanner, fontDescriptorFactory, dictionary, isLenientParsing);
var font = ParseType1Font(descriptor, isLenientParsing);
var name = FontDictionaryAccessHelper.GetName(pdfScanner, dictionary, descriptor, isLenientParsing);
CMap toUnicodeCMap = null;
if (dictionary.TryGet(NameToken.ToUnicode, out var toUnicodeObj))
{
var toUnicode = DirectObjectFinder.Get <StreamToken>(toUnicodeObj, pdfScanner);
var decodedUnicodeCMap = toUnicode?.Decode(filterProvider);
if (decodedUnicodeCMap != null)
{
toUnicodeCMap = cMapCache.Parse(new ByteArrayInputBytes(decodedUnicodeCMap), isLenientParsing);
}
}
Encoding encoding = encodingReader.Read(dictionary, isLenientParsing, descriptor);
if (encoding == null && font?.Encoding.Count > 0)
{
encoding = new BuiltInEncoding(font.Encoding);
}
return(new Type1FontSimple(name, firstCharacter, lastCharacter, widths, descriptor, encoding, toUnicodeCMap));
}
public IFont Generate(DictionaryToken dictionary)
{
var usingStandard14Only = !dictionary.ContainsKey(NameToken.FirstChar) || !dictionary.ContainsKey(NameToken.Widths);
if (usingStandard14Only)
{
// TODO: some fonts combine standard 14 font with other metrics.
if (!dictionary.TryGet(NameToken.BaseFont, out var baseFontToken) ||
!(baseFontToken is NameToken standard14Name))
{
throw new InvalidFontFormatException($"The Type 1 font did not contain a first character entry but also did not reference a standard 14 font: {dictionary}");
}
var metrics = Standard14.GetAdobeFontMetrics(standard14Name.Data);
if (metrics != null)
{
var overrideEncoding = encodingReader.Read(dictionary);
return(new Type1Standard14Font(metrics, overrideEncoding));
}
}
int firstCharacter, lastCharacter;
double[] widths;
if (!usingStandard14Only)
{
firstCharacter = FontDictionaryAccessHelper.GetFirstCharacter(dictionary);
lastCharacter = FontDictionaryAccessHelper.GetLastCharacter(dictionary);
widths = FontDictionaryAccessHelper.GetWidths(pdfScanner, dictionary);
}
else
{
firstCharacter = 0;
lastCharacter = 0;
widths = EmptyArray <double> .Instance;
}
if (!dictionary.TryGet(NameToken.FontDescriptor, out var _))
{
if (dictionary.TryGet(NameToken.BaseFont, out var baseFontToken) &&
DirectObjectFinder.TryGet(baseFontToken, pdfScanner, out NameToken baseFontName))
{
var metrics = Standard14.GetAdobeFontMetrics(baseFontName.Data);
var overrideEncoding = encodingReader.Read(dictionary);
return(new Type1Standard14Font(metrics, overrideEncoding));
}
}
var descriptor = FontDictionaryAccessHelper.GetFontDescriptor(pdfScanner, dictionary);
var font = ParseFontProgram(descriptor);
var name = FontDictionaryAccessHelper.GetName(pdfScanner, dictionary, descriptor);
CMap toUnicodeCMap = null;
if (dictionary.TryGet(NameToken.ToUnicode, out var toUnicodeObj))
{
var toUnicode = DirectObjectFinder.Get <StreamToken>(toUnicodeObj, pdfScanner);
var decodedUnicodeCMap = toUnicode?.Decode(filterProvider, pdfScanner);
if (decodedUnicodeCMap != null)
{
toUnicodeCMap = CMapCache.Parse(new ByteArrayInputBytes(decodedUnicodeCMap));
}
}
var fromFont = default(Encoding);
if (font != null)
{
if (font.TryGetFirst(out var t1Font))
{
fromFont = t1Font.Encoding != null ? new BuiltInEncoding(t1Font.Encoding) : default(Encoding);
}
else if (font.TryGetSecond(out var cffFont))
{
fromFont = cffFont.FirstFont?.Encoding;
}
}
var encoding = encodingReader.Read(dictionary, descriptor, fromFont);
if (encoding == null && font != null && font.TryGetFirst(out var t1FontReplacment))
{
encoding = new BuiltInEncoding(t1FontReplacment.Encoding);
}
return(new Type1FontSimple(name, firstCharacter, lastCharacter, widths, descriptor, encoding, toUnicodeCMap, font));
}
