public override PdfIndirectObject AddToBody(PdfObject objecti, PdfIndirectReference refi)
{
PdfIndirectObject iobj = base.AddToBody(objecti, refi);
PdfAChecker.CacheObject(iobj.IndirectReference, iobj.objecti);
return(iobj);
}
public override PdfIndirectObject AddToBody(PdfObject objecti, int refNumber, bool inObjStm)
{
PdfIndirectObject iobj = base.AddToBody(objecti, refNumber, inObjStm);
PdfAChecker.CacheObject(iobj.IndirectReference, iobj.objecti);
return(iobj);
}
public override PdfIndirectObject AddToBody(PdfObject obj, int refNumber)
{
PdfIndirectObject iobj = base.AddToBody(obj, refNumber);
GetPdfAChecker().CacheObject(iobj.IndirectReference, iobj.objecti);
return(iobj);
}
/** Outputs to the writer the font dictionaries and streams.
* @param writer the writer for this document
* @param ref the font indirect reference
* @param parms several parameters that depend on the font type
* @throws IOException on error
* @throws DocumentException error in generating the object
*/
internal override void writeFont(PdfWriter writer, PdfIndirectReference piref, Object[] parms)
{
int firstChar = (int)parms[0];
int lastChar = (int)parms[1];
byte[] shortTag = (byte[])parms[2];
if (!subset)
{
firstChar = 0;
lastChar = shortTag.Length - 1;
for (int k = 0; k < shortTag.Length; ++k)
{
shortTag[k] = 1;
}
}
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
pobj = getFontStream();
if (pobj != null)
{
obj = writer.addToBody(pobj);
ind_font = obj.IndirectReference;
}
pobj = getFontDescriptor(ind_font);
if (pobj != null)
{
obj = writer.addToBody(pobj);
ind_font = obj.IndirectReference;
}
pobj = getFontBaseType(ind_font, firstChar, lastChar, shortTag);
writer.addToBody(pobj, piref);
}
/** Does the actual document manipulation to encrypt it.
* @throws DocumentException on error
* @throws IOException on error
*/
protected void go()
{
body = new PdfBody(HEADER.Length, this, true);
os.Write(HEADER, 0, HEADER.Length);
PdfObject[] xb = reader.xrefObj;
myXref = new int[xb.Length];
int idx = 1;
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
myXref[k] = idx++;
}
}
file.reOpen();
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
addToBody(xb[k]);
}
}
file.close();
PdfIndirectReference encryption = null;
PdfLiteral fileID = null;
if (crypto != null)
{
PdfIndirectObject encryptionObject = body.Add(crypto.EncryptionDictionary);
encryptionObject.writeTo(os);
encryption = encryptionObject.IndirectReference;
fileID = crypto.FileID;
}
// write the cross-reference table of the body
os.Write(body.CrossReferenceTable, 0, body.CrossReferenceTable.Length);
PRIndirectReference iRoot = (PRIndirectReference)reader.trailer.get(PdfName.ROOT);
PdfIndirectReference root = new PdfIndirectReference(0, myXref[iRoot.Number]);
PRIndirectReference iInfo = (PRIndirectReference)reader.trailer.get(PdfName.INFO);
PdfIndirectReference info = null;
if (iInfo != null)
{
info = new PdfIndirectReference(0, myXref[iInfo.Number]);
}
PdfTrailer trailer = new PdfTrailer(body.Size,
body.Offset,
root,
info,
encryption,
fileID);
byte[] tmp = trailer.toPdf(this);
os.Write(tmp, 0, tmp.Length);
os.Close();
}
/** Outputs to the writer the font dictionaries and streams.
* @param writer the writer for this document
* @param ref the font indirect reference
* @param parms several parameters that depend on the font type
* @throws IOException on error
* @throws DocumentException error in generating the object
*/
internal override void writeFont(PdfWriter writer, PdfIndirectReference piref, Object[] parms)
{
Hashmap longTag = (Hashmap)parms[0];
ArrayList tmp = new ArrayList();
foreach (object o in longTag.Values)
{
tmp.Add(o);
}
Object[] metrics = tmp.ToArray();
Array.Sort(metrics, this);
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
TrueTypeFontSubSet sb = new TrueTypeFontSubSet(fileName, rf, longTag, directoryOffset, false);
byte[] b = sb.process();
int[] lengths = new int[] { b.Length };
pobj = new StreamFont(b, lengths);
obj = writer.addToBody(pobj);
ind_font = obj.IndirectReference;
string subsetPrefix = createSubsetPrefix();
PdfDictionary dic = getFontDescriptor(ind_font, subsetPrefix);
obj = writer.addToBody(dic);
ind_font = obj.IndirectReference;
pobj = getCIDFontType2(ind_font, subsetPrefix, metrics);
obj = writer.addToBody(pobj);
ind_font = obj.IndirectReference;
pobj = getToUnicode(metrics);
PdfIndirectReference toUnicodeRef = null;
if (pobj != null)
{
obj = writer.addToBody(pobj);
toUnicodeRef = obj.IndirectReference;
}
pobj = getFontBaseType(ind_font, subsetPrefix, toUnicodeRef);
writer.addToBody(pobj, piref);
}
internal override void WriteFont(PdfWriter writer, PdfIndirectReference piref, Object[] parms)
{
IntHashtable cjkTag = (IntHashtable)parms[0];
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
pobj = GetFontDescriptor();
if (pobj != null)
{
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
pobj = GetCIDFont(ind_font, cjkTag);
if (pobj != null)
{
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
pobj = GetFontBaseType(ind_font);
writer.AddToBody(pobj, piref);
}
private void WriteObjectToBody(PdfIndirectObject objecta) {
bool skipWriting = false;
if (mergeFields) {
UpdateAnnotationReferences(objecta.objecti);
if (objecta.objecti.IsDictionary() || objecta.objecti.IsStream()) {
PdfDictionary dictionary = (PdfDictionary)objecta.objecti;
if (unmergedSet.Contains(objecta)) {
PdfNumber annotId = dictionary.GetAsNumber(PdfCopy.annotId);
if (annotId != null && mergedMap.ContainsKey(annotId.IntValue))
skipWriting = true;
}
if (mergedSet.Contains(objecta)) {
PdfNumber annotId = dictionary.GetAsNumber(PdfCopy.annotId);
if (annotId != null) {
PdfIndirectObject unmerged = null;
if (unmergedMap.TryGetValue(annotId.IntValue, out unmerged) && unmerged.objecti.IsDictionary()) {
PdfNumber structParent = ((PdfDictionary)unmerged.objecti).GetAsNumber(PdfName.STRUCTPARENT);
if (structParent != null) {
dictionary.Put(PdfName.STRUCTPARENT, structParent);
}
}
}
}
}
}
if (!skipWriting) {
PdfDictionary dictionary = null;
PdfNumber annotId = null;
if (mergeFields && objecta.objecti.IsDictionary()) {
dictionary = (PdfDictionary)objecta.objecti;
annotId = dictionary.GetAsNumber(PdfCopy.annotId);
if (annotId != null)
dictionary.Remove(PdfCopy.annotId);
}
body.Write(objecta, objecta.Number, objecta.Generation);
if (annotId != null) {
dictionary.Put(PdfCopy.annotId, annotId);
}
}
}
protected internal override void CacheObject(PdfIndirectObject iobj)
{
PdfAChecker.CacheObject(iobj.IndirectReference, iobj.objecti);
}
internal PdfIndirectObject Add(PdfObject objecta, int refNumber, bool inObjStm)
{
if (inObjStm && objecta.CanBeInObjStm() && writer.FullCompression) {
PdfCrossReference pxref = AddToObjStm(objecta, refNumber);
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, objecta, writer);
xrefs.Remove(pxref);
xrefs[pxref] = null;
return indirect;
}
else {
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, objecta, writer);
PdfCrossReference pxref = new PdfCrossReference(refNumber, position);
xrefs.Remove(pxref);
xrefs[pxref] = null;
indirect.WriteTo(writer.Os);
position = writer.Os.Counter;
return indirect;
}
}
/**
* Use this method for caching objects.
* @param iobj @see PdfIndirectObject
*/
protected internal virtual void CacheObject(PdfIndirectObject iobj) { }
protected internal void Write(PdfIndirectObject indirect, int refNumber)
{
PdfCrossReference pxref = new PdfCrossReference(refNumber, position);
xrefs.Remove(pxref);
xrefs[pxref] = null;
indirect.WriteTo(writer.Os);
position = writer.Os.Counter;
}
/**
* @see TtfUnicodeWriter#writeFont(TrueTypeFontUnicode, PdfIndirectReference, Object[], byte[])
*/
internal protected override void WriteFont(TrueTypeFontUnicode font, PdfIndirectReference refer, Object[] parameters, byte[] rotbits)
{
Dictionary <int, int[]> longTag = (Dictionary <int, int[]>)parameters[0];
font.AddRangeUni(longTag, true, font.Subset);
int [][] metrics = new int[longTag.Count][];
longTag.Values.CopyTo(metrics, 0);
Array.Sort(metrics, font);
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
if (font.Cff)
{
byte[] b = font.ReadCffFont();
if (font.Subset || font.SubsetRanges != null)
{
CFFFontSubset cff = new CFFFontSubset(new RandomAccessFileOrArray(b), longTag);
try
{
b = cff.Process(cff.GetNames()[0]);
}
catch (Exception e)
{
//temporary fix for cff subset failure
font.Subset = false;
font.AddRangeUni(longTag, true, font.Subset);
metrics = new int[longTag.Count][];
longTag.Values.CopyTo(metrics, 0);
Array.Sort(metrics, font);
}
}
pobj = new BaseFont.StreamFont(b, "CIDFontType0C", font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
else
{
byte[] b;
if (font.Subset || font.DirectoryOffset != 0)
{
lock (font.Rf) {
TrueTypeFontSubSet sb = new TrueTypeFontSubSet(font.FileName, new RandomAccessFileOrArray(font.Rf), new HashSet2 <int>(longTag.Keys), font.DirectoryOffset, false, false);
b = sb.Process();
}
}
else
{
b = font.GetFullFont();
}
int[] lengths = new int[] { b.Length };
pobj = new BaseFont.StreamFont(b, lengths, font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
// 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.
byte[] cidSetBytes = new byte[font.MaxGlyphId / 8 + 1];
for (int i = 0; i < font.MaxGlyphId / 8; i++)
{
cidSetBytes[i] |= 0xff;
}
for (int i = 0; i < font.MaxGlyphId % 8; i++)
{
cidSetBytes[cidSetBytes.Length - 1] |= rotbits[i];
}
PdfStream stream = new PdfStream(cidSetBytes);
stream.FlateCompress(font.CompressionLevel);
PdfIndirectReference cidset = writer.AddToBody(stream).IndirectReference;
String subsetPrefix = "";
if (font.Subset)
{
subsetPrefix = BaseFont.CreateSubsetPrefix();
}
PdfDictionary dic = font.GetFontDescriptor(ind_font, subsetPrefix, cidset);
obj = writer.AddToBody(dic);
ind_font = obj.IndirectReference;
pobj = font.GetCIDFontType2(ind_font, subsetPrefix, metrics);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
pobj = font.GetToUnicode(metrics);
PdfIndirectReference toUnicodeRef = null;
if (pobj != null)
{
obj = writer.AddToBody(pobj);
toUnicodeRef = obj.IndirectReference;
}
pobj = font.GetFontBaseType(ind_font, subsetPrefix, toUnicodeRef);
writer.AddToBody(pobj, refer);
}
protected internal override void CacheObject(PdfIndirectObject iobj) {
if ((tagged || mergeFields) && indirectObjects != null) {
savedObjects.Add(iobj);
RefKey key = new RefKey(iobj.Number, iobj.Generation);
if (!indirectObjects.ContainsKey(key))
indirectObjects[key] = iobj;
}
}
public new PdfIndirectObject AddToBody(PdfObject objecta, PdfIndirectReference refa, bool formBranching) {
if (formBranching) {
UpdateReferences(objecta);
}
PdfIndirectObject indObj;
if ((tagged || mergeFields) && indirectObjects != null && (objecta.IsArray() || objecta.IsDictionary() || objecta.IsStream())) {
RefKey key = new RefKey(refa);
PdfIndirectObject obj;
if (!indirectObjects.TryGetValue(key, out obj)) {
obj = new PdfIndirectObject(refa, objecta, this);
indirectObjects[key] = obj;
}
indObj = obj;
} else {
indObj = base.AddToBody(objecta, refa);
}
if (mergeFields && objecta.IsDictionary()) {
PdfNumber annotId = ((PdfDictionary)objecta).GetAsNumber(PdfCopy.annotId);
if (annotId != null) {
if (formBranching) {
mergedMap[annotId.IntValue] = indObj;
mergedSet.Add(indObj);
} else {
unmergedMap[annotId.IntValue] = indObj;
unmergedSet.Add(indObj);
}
}
}
return indObj;
}
protected internal override void CacheObject(PdfIndirectObject iobj)
{
PdfAChecker.CacheObject(iobj.IndirectReference, iobj.objecti);
}
public override PdfIndirectObject AddToBody(PdfObject objecta, PdfIndirectReference refa)
{
if (tagged && indirectObjects != null && (objecta.IsArray() || objecta.IsDictionary())) {
RefKey key = new RefKey(refa);
PdfIndirectObject obj;
if (!indirectObjects.TryGetValue(key, out obj)) {
obj = new PdfIndirectObject(refa, objecta, this);
indirectObjects[key] = obj;
}
return obj;
} else {
if (tagged && objecta.IsStream())
streams.Add(new RefKey(refa));
return base.AddToBody(objecta, refa);
}
}
internal protected virtual void WriteFont(TrueTypeFontUnicode font, PdfIndirectReference refer, Object[] parms, byte[] rotbits)
{
Dictionary <int, int[]> longTag = (Dictionary <int, int[]>)parms[0];
font.AddRangeUni(longTag, true, font.Subset);
int[][] metrics = new int[longTag.Count][];
longTag.Values.CopyTo(metrics, 0);
Array.Sort(metrics, font);
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
// sivan: cff
if (font.Cff)
{
byte[] b = font.ReadCffFont();
if (font.Subset || font.SubsetRanges != null)
{
CFFFontSubset cff = new CFFFontSubset(new RandomAccessFileOrArray(b), longTag);
try
{
b = cff.Process(cff.GetNames()[0]);
}
catch (Exception e)
{
// temporary fix for cff subset failure
font.Subset = false;
font.AddRangeUni(longTag, true, font.Subset);
metrics = new int[longTag.Count][];
longTag.Values.CopyTo(metrics, 0);
Array.Sort(metrics, font);
}
}
pobj = new BaseFont.StreamFont(b, "CIDFontType0C", font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
else
{
byte[] b;
if (font.Subset || font.DirectoryOffset != 0)
{
lock (font.Rf) {
TrueTypeFontSubSet sb = new TrueTypeFontSubSet(font.FileName, new RandomAccessFileOrArray(font.Rf), new HashSet2 <int>(longTag.Keys), font.DirectoryOffset, true, false);
b = sb.Process();
}
}
else
{
b = font.GetFullFont();
}
int[] lengths = new int[] { b.Length };
pobj = new BaseFont.StreamFont(b, lengths, font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
String subsetPrefix = "";
if (font.Subset)
{
subsetPrefix = TrueTypeFontUnicode.CreateSubsetPrefix();
}
PdfDictionary dic = font.GetFontDescriptor(ind_font, subsetPrefix, null);
obj = writer.AddToBody(dic);
ind_font = obj.IndirectReference;
pobj = font.GetCIDFontType2(ind_font, subsetPrefix, metrics);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
pobj = font.GetToUnicode(metrics);
PdfIndirectReference toUnicodeRef = null;
if (pobj != null)
{
obj = writer.AddToBody(pobj);
toUnicodeRef = obj.IndirectReference;
}
pobj = font.GetFontBaseType(ind_font, subsetPrefix, toUnicodeRef);
writer.AddToBody(pobj, refer);
}
/**
* @see TtfUnicodeWriter#writeFont(TrueTypeFontUnicode, PdfIndirectReference, Object[], byte[])
*/
internal protected override void WriteFont(TrueTypeFontUnicode font, PdfIndirectReference refer, Object[] parameters, byte[] rotbits)
{
Dictionary <int, int[]> longTag = (Dictionary <int, int[]>)parameters[0];
font.AddRangeUni(longTag, true, font.Subset);
int [][] metrics = new int[longTag.Count][];
longTag.Values.CopyTo(metrics, 0);
Array.Sort(metrics, font);
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
PdfIndirectReference cidset = null;
if (pdfAConformanceLevel == PdfAConformanceLevel.PDF_A_1A ||
pdfAConformanceLevel == PdfAConformanceLevel.PDF_A_1B)
{
PdfStream stream;
if (metrics.Length == 0)
{
stream = new PdfStream(new byte[] { (byte)0x80 });
}
else
{
int top = metrics[metrics.Length - 1][0];
byte[] bt = new byte[top / 8 + 1];
for (int k = 0; k < metrics.Length; ++k)
{
int v = metrics[k][0];
bt[v / 8] |= rotbits[v % 8];
}
stream = new PdfStream(bt);
stream.FlateCompress(font.CompressionLevel);
}
cidset = writer.AddToBody(stream).IndirectReference;
}
if (font.Cff)
{
byte[] b = font.ReadCffFont();
if (font.Subset || font.SubsetRanges != null)
{
CFFFontSubset cff = new CFFFontSubset(new RandomAccessFileOrArray(b), longTag);
b = cff.Process(cff.GetNames()[0]);
}
pobj = new BaseFont.StreamFont(b, "CIDFontType0C", font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
else
{
byte[] b;
if (font.Subset || font.DirectoryOffset != 0)
{
lock (font.Rf) {
TrueTypeFontSubSet sb = new TrueTypeFontSubSet(font.FileName, new RandomAccessFileOrArray(font.Rf), new HashSet2 <int>(longTag.Keys), font.DirectoryOffset, false, false);
b = sb.Process();
}
}
else
{
b = font.GetFullFont();
}
int[] lengths = new int[] { b.Length };
pobj = new BaseFont.StreamFont(b, lengths, font.CompressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
String subsetPrefix = "";
if (font.Subset)
{
subsetPrefix = BaseFont.CreateSubsetPrefix();
}
PdfDictionary dic = font.GetFontDescriptor(ind_font, subsetPrefix, cidset);
obj = writer.AddToBody(dic);
ind_font = obj.IndirectReference;
pobj = font.GetCIDFontType2(ind_font, subsetPrefix, metrics);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
pobj = font.GetToUnicode(metrics);
PdfIndirectReference toUnicodeRef = null;
if (pobj != null)
{
obj = writer.AddToBody(pobj);
toUnicodeRef = obj.IndirectReference;
}
pobj = font.GetFontBaseType(ind_font, subsetPrefix, toUnicodeRef);
writer.AddToBody(pobj, refer);
}
virtual internal protected PdfIndirectObject Add(PdfObject objecta, int refNumber, bool inObjStm) {
if (inObjStm && objecta.CanBeInObjStm() && writer.FullCompression) {
PdfCrossReference pxref = AddToObjStm(objecta, refNumber);
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, objecta, writer);
xrefs.Remove(pxref);
xrefs[pxref] = null;
return indirect;
}
else {
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, objecta, writer);
Write(indirect, refNumber);
return indirect;
}
}
/**
* Returns the CrossReferenceTable of the <CODE>Body</CODE>.
* @param os
* @param root
* @param info
* @param encryption
* @param fileID
* @param prevxref
* @throws IOException
*/
internal void WriteCrossReferenceTable(Stream os, PdfIndirectReference root, PdfIndirectReference info, PdfIndirectReference encryption, PdfObject fileID, int prevxref)
{
int refNumber = 0;
if (writer.FullCompression) {
FlushObjStm();
refNumber = IndirectReferenceNumber;
xrefs[new PdfCrossReference(refNumber, position)] = null;
}
PdfCrossReference entry = (PdfCrossReference)((DictionaryEntry)xrefs.Begin.Current).Key;
int first = entry.Refnum;
int len = 0;
ArrayList sections = new ArrayList();
for (k_Iterator i = xrefs.Begin.Clone(); i != xrefs.End; i.Next()) {
entry = (PdfCrossReference)((DictionaryEntry)i.Current).Key;
if (first + len == entry.Refnum)
++len;
else {
sections.Add(first);
sections.Add(len);
first = entry.Refnum;
len = 1;
}
}
sections.Add(first);
sections.Add(len);
if (writer.FullCompression) {
int mid = 4;
uint mask = 0xff000000;
for (; mid > 1; --mid) {
if ((mask & position) != 0)
break;
mask >>= 8;
}
ByteBuffer buf = new ByteBuffer();
for (k_Iterator i = xrefs.Begin.Clone(); i != xrefs.End; i.Next()) {
entry = (PdfCrossReference)((DictionaryEntry)i.Current).Key;
entry.ToPdf(mid, buf);
}
PdfStream xr = new PdfStream(buf.ToByteArray());
buf = null;
xr.FlateCompress();
xr.Put(PdfName.SIZE, new PdfNumber(Size));
xr.Put(PdfName.ROOT, root);
if (info != null) {
xr.Put(PdfName.INFO, info);
}
if (encryption != null)
xr.Put(PdfName.ENCRYPT, encryption);
if (fileID != null)
xr.Put(PdfName.ID, fileID);
xr.Put(PdfName.W, new PdfArray(new int[]{1, mid, 2}));
xr.Put(PdfName.TYPE, PdfName.XREF);
PdfArray idx = new PdfArray();
for (int k = 0; k < sections.Count; ++k)
idx.Add(new PdfNumber((int)sections[k]));
xr.Put(PdfName.INDEX, idx);
if (prevxref > 0)
xr.Put(PdfName.PREV, new PdfNumber(prevxref));
PdfEncryption enc = writer.crypto;
writer.crypto = null;
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, xr, writer);
indirect.WriteTo(writer.Os);
writer.crypto = enc;
}
else {
byte[] tmp = GetISOBytes("xref\n");
os.Write(tmp, 0, tmp.Length);
k_Iterator i = xrefs.Begin.Clone();
for (int k = 0; k < sections.Count; k += 2) {
first = (int)sections[k];
len = (int)sections[k + 1];
tmp = GetISOBytes(first.ToString());
os.Write(tmp, 0, tmp.Length);
os.WriteByte((byte)' ');
tmp = GetISOBytes(len.ToString());
os.Write(tmp, 0, tmp.Length);
os.WriteByte((byte)'\n');
while (len-- > 0) {
entry = (PdfCrossReference)((DictionaryEntry)i.Current).Key;
entry.ToPdf(os);
i.Next();
}
}
}
}
/**
* Returns the CrossReferenceTable of the <CODE>Body</CODE>.
* @param os
* @param root
* @param info
* @param encryption
* @param fileID
* @param prevxref
* @throws IOException
*/
virtual public void WriteCrossReferenceTable(Stream os, PdfIndirectReference root, PdfIndirectReference info, PdfIndirectReference encryption, PdfObject fileID, long prevxref) {
int refNumber = 0;
if (writer.FullCompression) {
FlushObjStm();
refNumber = IndirectReferenceNumber;
xrefs[new PdfCrossReference(refNumber, position)] = null;
}
int first = ((PdfCrossReference)xrefs.GetMinKey()).Refnum;
int len = 0;
List<int> sections = new List<int>();
foreach (PdfCrossReference entry in xrefs.Keys) {
if (first + len == entry.Refnum)
++len;
else {
sections.Add(first);
sections.Add(len);
first = entry.Refnum;
len = 1;
}
}
sections.Add(first);
sections.Add(len);
if (writer.FullCompression) {
int mid = 5;
long mask = 0xff00000000L;
for (; mid > 1; --mid) {
if ((mask & position) != 0)
break;
mask >>= 8;
}
ByteBuffer buf = new ByteBuffer();
foreach (PdfCrossReference entry in xrefs.Keys) {
entry.ToPdf(mid, buf);
}
PdfStream xr = new PdfStream(buf.ToByteArray());
buf = null;
xr.FlateCompress(writer.CompressionLevel);
xr.Put(PdfName.SIZE, new PdfNumber(Size));
xr.Put(PdfName.ROOT, root);
if (info != null) {
xr.Put(PdfName.INFO, info);
}
if (encryption != null)
xr.Put(PdfName.ENCRYPT, encryption);
if (fileID != null)
xr.Put(PdfName.ID, fileID);
xr.Put(PdfName.W, new PdfArray(new int[]{1, mid, 2}));
xr.Put(PdfName.TYPE, PdfName.XREF);
PdfArray idx = new PdfArray();
for (int k = 0; k < sections.Count; ++k)
idx.Add(new PdfNumber(sections[k]));
xr.Put(PdfName.INDEX, idx);
if (prevxref > 0)
xr.Put(PdfName.PREV, new PdfNumber(prevxref));
PdfEncryption enc = writer.crypto;
writer.crypto = null;
PdfIndirectObject indirect = new PdfIndirectObject(refNumber, xr, writer);
indirect.WriteTo(writer.Os);
writer.crypto = enc;
}
else {
byte[] tmp = GetISOBytes("xref\n");
os.Write(tmp, 0, tmp.Length);
System.Collections.IEnumerator i = xrefs.Keys;
i.MoveNext();
for (int k = 0; k < sections.Count; k += 2) {
first = sections[k];
len = sections[k + 1];
tmp = GetISOBytes(first.ToString());
os.Write(tmp, 0, tmp.Length);
os.WriteByte((byte)' ');
tmp = GetISOBytes(len.ToString());
os.Write(tmp, 0, tmp.Length);
os.WriteByte((byte)'\n');
while (len-- > 0) {
((PdfCrossReference)i.Current).ToPdf(os);
i.MoveNext();
}
}
}
}
/** Outputs to the writer the font dictionaries and streams.
* @param writer the writer for this document
* @param ref the font indirect reference
* @param parms several parameters that depend on the font type
* @throws IOException on error
* @throws DocumentException error in generating the object
*/
internal override void WriteFont(PdfWriter writer, PdfIndirectReference piref, Object[] parms)
{
Hashtable longTag = (Hashtable)parms[0];
AddRangeUni(longTag, true, subset);
ArrayList tmp = new ArrayList();
foreach (object o in longTag.Values)
{
tmp.Add(o);
}
Object[] metrics = tmp.ToArray();
Array.Sort(metrics, this);
PdfIndirectReference ind_font = null;
PdfObject pobj = null;
PdfIndirectObject obj = null;
PdfIndirectReference cidset = null;
if (writer.PDFXConformance == PdfWriter.PDFA1A || writer.PDFXConformance == PdfWriter.PDFA1B)
{
PdfStream stream;
if (metrics.Length == 0)
{
stream = new PdfStream(new byte[] { (byte)0x80 });
}
else
{
int top = ((int[])metrics[metrics.Length - 1])[0];
byte[] bt = new byte[top / 8 + 1];
for (int k = 0; k < metrics.Length; ++k)
{
int v = ((int[])metrics[k])[0];
bt[v / 8] |= rotbits[v % 8];
}
stream = new PdfStream(bt);
stream.FlateCompress(compressionLevel);
}
cidset = writer.AddToBody(stream).IndirectReference;
}
// sivan: cff
if (cff)
{
byte[] b = ReadCffFont();
if (subset || subsetRanges != null)
{
CFFFontSubset cffs = new CFFFontSubset(new RandomAccessFileOrArray(b), longTag);
b = cffs.Process((cffs.GetNames())[0]);
}
pobj = new StreamFont(b, "CIDFontType0C", compressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
else
{
byte[] b;
if (subset || directoryOffset != 0)
{
TrueTypeFontSubSet sb = new TrueTypeFontSubSet(fileName, new RandomAccessFileOrArray(rf), longTag, directoryOffset, false, false);
b = sb.Process();
}
else
{
b = GetFullFont();
}
int[] lengths = new int[] { b.Length };
pobj = new StreamFont(b, lengths, compressionLevel);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
}
String subsetPrefix = "";
if (subset)
{
subsetPrefix = CreateSubsetPrefix();
}
PdfDictionary dic = GetFontDescriptor(ind_font, subsetPrefix, cidset);
obj = writer.AddToBody(dic);
ind_font = obj.IndirectReference;
pobj = GetCIDFontType2(ind_font, subsetPrefix, metrics);
obj = writer.AddToBody(pobj);
ind_font = obj.IndirectReference;
pobj = GetToUnicode(metrics);
PdfIndirectReference toUnicodeRef = null;
if (pobj != null)
{
obj = writer.AddToBody(pobj);
toUnicodeRef = obj.IndirectReference;
}
pobj = GetFontBaseType(ind_font, subsetPrefix, toUnicodeRef);
writer.AddToBody(pobj, piref);
}
