public static FontEncoding CreateDocFontEncoding(PdfObject encoding, CMapToUnicode toUnicode)
{
if (encoding != null)
{
if (encoding.IsName())
{
return(FontEncoding.CreateFontEncoding(((PdfName)encoding).GetValue()));
}
else
{
if (encoding.IsDictionary())
{
iText.Kernel.Font.DocFontEncoding fontEncoding = new iText.Kernel.Font.DocFontEncoding();
fontEncoding.differences = new String[256];
FillBaseEncoding(fontEncoding, ((PdfDictionary)encoding).GetAsName(PdfName.BaseEncoding));
FillDifferences(fontEncoding, ((PdfDictionary)encoding).GetAsArray(PdfName.Differences), toUnicode);
return(fontEncoding);
}
}
}
if (toUnicode != null)
{
iText.Kernel.Font.DocFontEncoding fontEncoding = new iText.Kernel.Font.DocFontEncoding();
fontEncoding.differences = new String[256];
FillDifferences(fontEncoding, toUnicode);
return(fontEncoding);
}
else
{
return(FontEncoding.CreateFontSpecificEncoding());
}
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfArray diffs, CMapToUnicode
toUnicode)
{
IntHashtable byte2uni = toUnicode != null?toUnicode.CreateDirectMapping() : new IntHashtable();
if (diffs != null)
{
int currentNumber = 0;
for (int k = 0; k < diffs.Size(); ++k)
{
PdfObject obj = diffs.Get(k);
if (obj.IsNumber())
{
currentNumber = ((PdfNumber)obj).IntValue();
}
else
{
if (currentNumber > 255)
{
ILog LOGGER = LogManager.GetLogger(typeof(iText.Kernel.Font.DocFontEncoding));
LOGGER.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.DOCFONT_HAS_ILLEGAL_DIFFERENCES, ((PdfName
)obj).GetValue()));
}
else
{
/* don't return or break, because differences subarrays may
* be in any order:
* e.g. [255 /space /one 250 /two /three]
* /one is invalid but all others should be parsed
*/
String glyphName = ((PdfName)obj).GetValue();
int unicode = AdobeGlyphList.NameToUnicode(glyphName);
if (unicode != -1)
{
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
else
{
if (byte2uni.ContainsKey(currentNumber))
{
unicode = byte2uni.Get(currentNumber);
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
}
currentNumber++;
}
}
}
}
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, CMapToUnicode toUnicode
)
{
IntHashtable byte2uni = toUnicode.CreateDirectMapping();
foreach (int?code in byte2uni.GetKeys())
{
int unicode = byte2uni.Get((int)code);
String glyphName = AdobeGlyphList.UnicodeToName(unicode);
fontEncoding.codeToUnicode[(int)code] = unicode;
fontEncoding.unicodeToCode.Put(unicode, (int)code);
fontEncoding.differences[(int)code] = glyphName;
fontEncoding.unicodeDifferences.Put(unicode, unicode);
}
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfArray diffs, CMapToUnicode
toUnicode)
{
IntHashtable byte2uni = toUnicode != null?toUnicode.CreateDirectMapping() : new IntHashtable();
if (diffs != null)
{
int currentNumber = 0;
for (int k = 0; k < diffs.Size(); ++k)
{
PdfObject obj = diffs.Get(k);
if (obj.IsNumber())
{
currentNumber = ((PdfNumber)obj).IntValue();
}
else
{
String glyphName = ((PdfName)obj).GetValue();
int unicode = (int)AdobeGlyphList.NameToUnicode(glyphName);
if (unicode != -1)
{
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
else
{
if (byte2uni.Contains(currentNumber))
{
unicode = byte2uni.Get(currentNumber);
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
}
currentNumber++;
}
}
}
}
private static void FillBaseEncoding(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfName baseEncodingName
, bool fillStandardEncoding)
{
if (baseEncodingName != null)
{
fontEncoding.baseEncoding = baseEncodingName.GetValue();
}
if (PdfName.MacRomanEncoding.Equals(baseEncodingName) || PdfName.WinAnsiEncoding.Equals(baseEncodingName) ||
PdfName.Symbol.Equals(baseEncodingName) || PdfName.ZapfDingbats.Equals(baseEncodingName))
{
String enc = PdfEncodings.WINANSI;
if (PdfName.MacRomanEncoding.Equals(baseEncodingName))
{
enc = PdfEncodings.MACROMAN;
}
else
{
if (PdfName.Symbol.Equals(baseEncodingName))
{
enc = PdfEncodings.SYMBOL;
}
else
{
if (PdfName.ZapfDingbats.Equals(baseEncodingName))
{
enc = PdfEncodings.ZAPFDINGBATS;
}
}
}
fontEncoding.baseEncoding = enc;
fontEncoding.FillNamedEncoding();
}
else
{
if (fillStandardEncoding)
{
fontEncoding.FillStandardEncoding();
}
}
}
private static void FillBaseEncoding(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfName baseEncodingName
)
{
if (baseEncodingName != null)
{
fontEncoding.baseEncoding = baseEncodingName.GetValue();
}
if (PdfName.MacRomanEncoding.Equals(baseEncodingName) || PdfName.WinAnsiEncoding.Equals(baseEncodingName) ||
PdfName.Symbol.Equals(baseEncodingName) || PdfName.ZapfDingbats.Equals(baseEncodingName))
{
String enc = PdfEncodings.WINANSI;
if (PdfName.MacRomanEncoding.Equals(baseEncodingName))
{
enc = PdfEncodings.MACROMAN;
}
else
{
if (PdfName.Symbol.Equals(baseEncodingName))
{
enc = PdfEncodings.SYMBOL;
}
else
{
if (PdfName.ZapfDingbats.Equals(baseEncodingName))
{
enc = PdfEncodings.ZAPFDINGBATS;
}
}
}
fontEncoding.baseEncoding = enc;
fontEncoding.FillNamedEncoding();
}
else
{
// Actually, font's built in encoding should be used if font file is embedded
// and standard encoding should be used otherwise
fontEncoding.FillStandardEncoding();
}
}
