internal PdfType0Font(TrueTypeFont ttf, String cmap)
: base()
{
if (!cmap.Equals(PdfEncodings.IDENTITY_H) && !cmap.Equals(PdfEncodings.IDENTITY_V))
{
throw new PdfException("only.identity.cmaps.supports.with.truetype");
}
if (!ttf.GetFontNames().AllowEmbedding())
{
throw new PdfException("1.cannot.be.embedded.due.to.licensing.restrictions").SetMessageParams(ttf.GetFontNames
().GetFontName() + ttf.GetFontNames().GetStyle());
}
this.fontProgram = ttf;
this.embedded = true;
vertical = cmap.EndsWith("V");
cmapEncoding = new CMapEncoding(cmap);
longTag = new LinkedDictionary <int, int[]>();
cidFontType = CID_FONT_TYPE_2;
if (ttf.IsFontSpecific())
{
specificUnicodeDifferences = new char[256];
byte[] bytes = new byte[1];
for (int k = 0; k < 256; ++k)
{
bytes[0] = (byte)k;
String s = PdfEncodings.ConvertToString(bytes, null);
char ch = s.Length > 0 ? s[0] : '?';
specificUnicodeDifferences[k] = ch;
}
}
}
internal PdfType0Font(TrueTypeFont ttf, String cmap)
: base()
{
if (!PdfEncodings.IDENTITY_H.Equals(cmap) && !PdfEncodings.IDENTITY_V.Equals(cmap))
{
throw new PdfException(PdfException.OnlyIdentityCMapsSupportsWithTrueType);
}
if (!ttf.GetFontNames().AllowEmbedding())
{
throw new PdfException(PdfException.CannotBeEmbeddedDueToLicensingRestrictions).SetMessageParams(ttf.GetFontNames
().GetFontName() + ttf.GetFontNames().GetStyle());
}
this.fontProgram = ttf;
this.embedded = true;
vertical = cmap.EndsWith("V");
cmapEncoding = new CMapEncoding(cmap);
longTag = new SortedSet <int>();
cidFontType = CID_FONT_TYPE_2;
if (ttf.IsFontSpecific())
{
specificUnicodeDifferences = new char[256];
byte[] bytes = new byte[1];
for (int k = 0; k < 256; ++k)
{
bytes[0] = (byte)k;
String s = PdfEncodings.ConvertToString(bytes, null);
char ch = s.Length > 0 ? s[0] : '?';
specificUnicodeDifferences[k] = ch;
}
}
}
private void FlushFontData()
{
if (cidFontType == CID_FONT_TYPE_0)
{
GetPdfObject().Put(PdfName.Type, PdfName.Font);
GetPdfObject().Put(PdfName.Subtype, PdfName.Type0);
String name = fontProgram.GetFontNames().GetFontName();
String style = fontProgram.GetFontNames().GetStyle();
if (style.Length > 0)
{
name += "-" + style;
}
GetPdfObject().Put(PdfName.BaseFont, new PdfName(String.Format("{0}-{1}", name, cmapEncoding.GetCmapName()
)));
GetPdfObject().Put(PdfName.Encoding, new PdfName(cmapEncoding.GetCmapName()));
PdfDictionary fontDescriptor = GetFontDescriptor(name);
int[][] metrics = longTag.Values.ToArray(new int[0][]);
iText.IO.Util.JavaUtil.Sort(metrics, new PdfType0Font.MetricComparator());
PdfDictionary cidFont = GetCidFontType2(null, fontDescriptor, fontProgram.GetFontNames().GetFontName(), metrics
);
GetPdfObject().Put(PdfName.DescendantFonts, new PdfArray(cidFont));
fontDescriptor.Flush();
cidFont.Flush();
}
else
{
if (cidFontType == CID_FONT_TYPE_2)
{
TrueTypeFont ttf = (TrueTypeFont)GetFontProgram();
AddRangeUni(ttf, longTag, true);
int[][] metrics = longTag.Values.ToArray(new int[0][]);
iText.IO.Util.JavaUtil.Sort(metrics, new PdfType0Font.MetricComparator());
PdfStream fontStream;
String fontName = ttf.GetFontNames().GetFontName();
if (subset)
{
fontName = CreateSubsetPrefix() + fontName;
}
PdfDictionary fontDescriptor = GetFontDescriptor(fontName);
if (ttf.IsCff())
{
byte[] cffBytes = ttf.GetFontStreamBytes();
if (subset || subsetRanges != null)
{
CFFFontSubset cff = new CFFFontSubset(ttf.GetFontStreamBytes(), longTag);
cffBytes = cff.Process(cff.GetNames()[0]);
}
fontStream = GetPdfFontStream(cffBytes, new int[] { cffBytes.Length });
fontStream.Put(PdfName.Subtype, new PdfName("CIDFontType0C"));
// The PDF Reference manual advises to add -cmap in case CIDFontType0
GetPdfObject().Put(PdfName.BaseFont, new PdfName(String.Format("{0}-{1}", fontName, cmapEncoding.GetCmapName
())));
fontDescriptor.Put(PdfName.FontFile3, fontStream);
}
else
{
byte[] ttfBytes;
if (subset || ttf.GetDirectoryOffset() != 0)
{
ttfBytes = ttf.GetSubset(new LinkedHashSet <int>(longTag.Keys), true);
}
else
{
ttfBytes = ttf.GetFontStreamBytes();
}
fontStream = GetPdfFontStream(ttfBytes, new int[] { ttfBytes.Length });
GetPdfObject().Put(PdfName.BaseFont, new PdfName(fontName));
fontDescriptor.Put(PdfName.FontFile2, fontStream);
}
// CIDSet shall be based on font.maxGlyphId property of the font, it is maxp.numGlyphs for ttf,
// because technically we convert all unused glyphs to space, e.g. just remove outlines.
int maxGlyphId = ttf.GetFontMetrics().GetMaxGlyphId();
byte[] cidSetBytes = new byte[ttf.GetFontMetrics().GetMaxGlyphId() / 8 + 1];
for (int i = 0; i < maxGlyphId / 8; i++)
{
cidSetBytes[i] |= 0xff;
}
for (int i_1 = 0; i_1 < maxGlyphId % 8; i_1++)
{
cidSetBytes[cidSetBytes.Length - 1] |= rotbits[i_1];
}
fontDescriptor.Put(PdfName.CIDSet, new PdfStream(cidSetBytes));
PdfDictionary cidFont = GetCidFontType2(ttf, fontDescriptor, fontName, metrics);
GetPdfObject().Put(PdfName.Type, PdfName.Font);
GetPdfObject().Put(PdfName.Subtype, PdfName.Type0);
GetPdfObject().Put(PdfName.Encoding, new PdfName(cmapEncoding.GetCmapName()));
GetPdfObject().Put(PdfName.DescendantFonts, new PdfArray(cidFont));
PdfStream toUnicode = GetToUnicode(metrics);
if (toUnicode != null)
{
GetPdfObject().Put(PdfName.ToUnicode, toUnicode);
toUnicode.Flush();
}
fontDescriptor.Flush();
cidFont.Flush();
}
else
{
throw new InvalidOperationException("Unsupported CID Font");
}
}
}
private void FlushFontData()
{
if (cidFontType == CID_FONT_TYPE_0)
{
GetPdfObject().Put(PdfName.Type, PdfName.Font);
GetPdfObject().Put(PdfName.Subtype, PdfName.Type0);
String name = fontProgram.GetFontNames().GetFontName();
String style = fontProgram.GetFontNames().GetStyle();
if (style.Length > 0)
{
name += "-" + style;
}
GetPdfObject().Put(PdfName.BaseFont, new PdfName(MessageFormatUtil.Format("{0}-{1}", name, cmapEncoding.GetCmapName
())));
GetPdfObject().Put(PdfName.Encoding, new PdfName(cmapEncoding.GetCmapName()));
PdfDictionary fontDescriptor = GetFontDescriptor(name);
PdfDictionary cidFont = GetCidFont(fontDescriptor, fontProgram.GetFontNames().GetFontName(), false);
GetPdfObject().Put(PdfName.DescendantFonts, new PdfArray(cidFont));
fontDescriptor.Flush();
cidFont.Flush();
}
else
{
if (cidFontType == CID_FONT_TYPE_2)
{
TrueTypeFont ttf = (TrueTypeFont)GetFontProgram();
String fontName = UpdateSubsetPrefix(ttf.GetFontNames().GetFontName(), subset, embedded);
PdfDictionary fontDescriptor = GetFontDescriptor(fontName);
PdfStream fontStream;
ttf.UpdateUsedGlyphs((SortedSet <int>)longTag, subset, subsetRanges);
if (ttf.IsCff())
{
byte[] cffBytes;
if (subset)
{
cffBytes = new CFFFontSubset(ttf.GetFontStreamBytes(), longTag).Process();
}
else
{
cffBytes = ttf.GetFontStreamBytes();
}
fontStream = GetPdfFontStream(cffBytes, new int[] { cffBytes.Length });
fontStream.Put(PdfName.Subtype, new PdfName("CIDFontType0C"));
// The PDF Reference manual advises to add -cmap in case CIDFontType0
GetPdfObject().Put(PdfName.BaseFont, new PdfName(MessageFormatUtil.Format("{0}-{1}", fontName, cmapEncoding
.GetCmapName())));
fontDescriptor.Put(PdfName.FontFile3, fontStream);
}
else
{
byte[] ttfBytes = null;
//getDirectoryOffset() > 0 means ttc, which shall be subsetted anyway.
if (subset || ttf.GetDirectoryOffset() > 0)
{
try {
ttfBytes = ttf.GetSubset(longTag, subset);
}
catch (iText.IO.IOException) {
ILog logger = LogManager.GetLogger(typeof(iText.Kernel.Font.PdfType0Font));
logger.Warn(iText.IO.LogMessageConstant.FONT_SUBSET_ISSUE);
ttfBytes = null;
}
}
if (ttfBytes == null)
{
ttfBytes = ttf.GetFontStreamBytes();
}
fontStream = GetPdfFontStream(ttfBytes, new int[] { ttfBytes.Length });
GetPdfObject().Put(PdfName.BaseFont, new PdfName(fontName));
fontDescriptor.Put(PdfName.FontFile2, fontStream);
}
// CIDSet shall be based on font.numberOfGlyphs property of the font, it is maxp.numGlyphs for ttf,
// because technically we convert all unused glyphs to space, e.g. just remove outlines.
int numOfGlyphs = ttf.GetFontMetrics().GetNumberOfGlyphs();
byte[] cidSetBytes = new byte[ttf.GetFontMetrics().GetNumberOfGlyphs() / 8 + 1];
for (int i = 0; i < numOfGlyphs / 8; i++)
{
cidSetBytes[i] |= 0xff;
}
for (int i = 0; i < numOfGlyphs % 8; i++)
{
cidSetBytes[cidSetBytes.Length - 1] |= rotbits[i];
}
fontDescriptor.Put(PdfName.CIDSet, new PdfStream(cidSetBytes));
PdfDictionary cidFont = GetCidFont(fontDescriptor, fontName, !ttf.IsCff());
GetPdfObject().Put(PdfName.Type, PdfName.Font);
GetPdfObject().Put(PdfName.Subtype, PdfName.Type0);
GetPdfObject().Put(PdfName.Encoding, new PdfName(cmapEncoding.GetCmapName()));
GetPdfObject().Put(PdfName.DescendantFonts, new PdfArray(cidFont));
PdfStream toUnicode = GetToUnicode();
if (toUnicode != null)
{
GetPdfObject().Put(PdfName.ToUnicode, toUnicode);
if (toUnicode.GetIndirectReference() != null)
{
toUnicode.Flush();
}
}
// getPdfObject().getIndirectReference() != null by assertion of PdfType0Font#flush()
// This means, that fontDescriptor, cidFont and fontStream already are indirects
if (GetPdfObject().GetIndirectReference().GetDocument().GetPdfVersion().CompareTo(PdfVersion.PDF_2_0) >= 0
)
{
// CIDSet is deprecated in PDF 2.0
fontDescriptor.Remove(PdfName.CIDSet);
}
fontDescriptor.Flush();
cidFont.Flush();
fontStream.Flush();
}
else
{
throw new InvalidOperationException("Unsupported CID Font");
}
}
}