/**
* A constructor from a <CODE>PdfReader</CODE>. It basically does everything
* from finding the XFA stream to the XML parsing.
* @param reader the reader
* @throws java.io.IOException on error
* @throws javax.xml.parsers.ParserConfigurationException on error
* @throws org.xml.sax.SAXException on error
*/
public XfaForm(PdfReader reader)
{
this.reader = reader;
PdfObject xfa = GetXfaObject(reader);
if (xfa == null)
{
xfaPresent = false;
return;
}
xfaPresent = true;
MemoryStream bout = new MemoryStream();
if (xfa.IsArray())
{
PdfArray ar = (PdfArray)xfa;
for (int k = 1; k < ar.Size; k += 2)
{
PdfObject ob = ar.GetDirectObject(k);
if (ob is PRStream)
{
byte[] b = PdfReader.GetStreamBytes((PRStream)ob);
bout.Write(b, 0, b.Length);
}
}
}
else if (xfa is PRStream)
{
byte[] b = PdfReader.GetStreamBytes((PRStream)xfa);
bout.Write(b, 0, b.Length);
}
bout.Seek(0, SeekOrigin.Begin);
XmlTextReader xtr = new XmlTextReader(bout);
domDocument = new XmlDocument();
domDocument.PreserveWhitespace = true;
domDocument.Load(xtr);
ExtractNodes();
}
private void Init(PdfDictionary parent, PdfName structureType)
{
PdfObject kido = parent.Get(PdfName.K);
PdfArray kids = null;
if (kido != null && !kido.IsArray())
{
throw new ArgumentException("The parent has already another function.");
}
if (kido == null)
{
kids = new PdfArray();
parent.Put(PdfName.K, kids);
}
else
{
kids = (PdfArray)kido;
}
kids.Add(this);
Put(PdfName.S, structureType);
reference = top.Writer.PdfIndirectReference;
}
public override void ToPdf(PdfWriter writer, Stream os)
{
if (inputStream != null && compressed)
{
Put(PdfName.FILTER, PdfName.FLATEDECODE);
}
PdfEncryption crypto = null;
if (writer != null)
{
crypto = writer.Encryption;
}
if (crypto != null)
{
PdfObject filter = Get(PdfName.FILTER);
if (filter != null)
{
if (PdfName.CRYPT.Equals(filter))
{
crypto = null;
}
else if (filter.IsArray())
{
PdfArray a = ((PdfArray)filter);
if (a.Size > 0 && PdfName.CRYPT.Equals(a[0]))
{
crypto = null;
}
}
}
}
PdfObject nn = Get(PdfName.LENGTH);
if (crypto != null && nn != null && nn.IsNumber())
{
int sz = ((PdfNumber)nn).IntValue;
Put(PdfName.LENGTH, new PdfNumber(crypto.CalculateStreamSize(sz)));
SuperToPdf(writer, os);
Put(PdfName.LENGTH, nn);
}
else
{
SuperToPdf(writer, os);
}
os.Write(STARTSTREAM, 0, STARTSTREAM.Length);
if (inputStream != null)
{
rawLength = 0;
ZDeflaterOutputStream def = null;
OutputStreamCounter osc = new OutputStreamCounter(os);
OutputStreamEncryption ose = null;
Stream fout = osc;
if (crypto != null && !crypto.IsEmbeddedFilesOnly())
{
fout = ose = crypto.GetEncryptionStream(fout);
}
if (compressed)
{
fout = def = new ZDeflaterOutputStream(fout, compressionLevel);
}
byte[] buf = new byte[4192];
while (true)
{
int n = inputStream.Read(buf, 0, buf.Length);
if (n <= 0)
{
break;
}
fout.Write(buf, 0, n);
rawLength += n;
}
if (def != null)
{
def.Finish();
}
if (ose != null)
{
ose.Finish();
}
inputStreamLength = osc.Counter;
}
else
{
if (crypto != null && !crypto.IsEmbeddedFilesOnly())
{
byte[] b;
if (streamBytes != null)
{
b = crypto.EncryptByteArray(streamBytes.ToArray());
}
else
{
b = crypto.EncryptByteArray(bytes);
}
os.Write(b, 0, b.Length);
}
else
{
if (streamBytes != null)
{
streamBytes.WriteTo(os);
}
else
{
os.Write(bytes, 0, bytes.Length);
}
}
}
os.Write(ENDSTREAM, 0, ENDSTREAM.Length);
}
/**
* Compresses the stream.
* @param compressionLevel the compression level (0 = best speed, 9 = best compression, -1 is default)
* @since 2.1.3
*/
public void FlateCompress(int compressionLevel)
{
if (!Document.Compress)
{
return;
}
// check if the flateCompress-method has allready been
if (compressed)
{
return;
}
this.compressionLevel = compressionLevel;
if (inputStream != null)
{
compressed = true;
return;
}
// check if a filter allready exists
PdfObject filter = PdfReader.GetPdfObject(Get(PdfName.FILTER));
if (filter != null)
{
if (filter.IsName())
{
if (PdfName.FLATEDECODE.Equals(filter))
{
return;
}
}
else if (filter.IsArray())
{
if (((PdfArray)filter).Contains(PdfName.FLATEDECODE))
{
return;
}
}
else
{
throw new PdfException("Stream could not be compressed: filter is not a name or array.");
}
}
// compress
MemoryStream stream = new MemoryStream();
ZDeflaterOutputStream zip = new ZDeflaterOutputStream(stream, compressionLevel);
if (streamBytes != null)
{
streamBytes.WriteTo(zip);
}
else
{
zip.Write(bytes, 0, bytes.Length);
}
//zip.Close();
zip.Finish();
// update the object
streamBytes = stream;
bytes = null;
Put(PdfName.LENGTH, new PdfNumber(streamBytes.Length));
if (filter == null)
{
Put(PdfName.FILTER, PdfName.FLATEDECODE);
}
else
{
PdfArray filters = new PdfArray(filter);
filters.Add(PdfName.FLATEDECODE);
Put(PdfName.FILTER, filters);
}
compressed = true;
}
private static ArrayList BookmarkDepth(PdfReader reader, PdfDictionary outline, IntHashtable pages)
{
ArrayList list = new ArrayList();
while (outline != null)
{
Hashtable map = new Hashtable();
PdfString title = (PdfString)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.TITLE));
map["Title"] = title.ToUnicodeString();
PdfArray color = (PdfArray)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.C));
if (color != null && color.Size == 3)
{
ByteBuffer outp = new ByteBuffer();
outp.Append(color.GetAsNumber(0).FloatValue).Append(' ');
outp.Append(color.GetAsNumber(1).FloatValue).Append(' ');
outp.Append(color.GetAsNumber(2).FloatValue);
map["Color"] = PdfEncodings.ConvertToString(outp.ToByteArray(), null);
}
PdfNumber style = (PdfNumber)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.F));
if (style != null)
{
int f = style.IntValue;
String s = "";
if ((f & 1) != 0)
{
s += "italic ";
}
if ((f & 2) != 0)
{
s += "bold ";
}
s = s.Trim();
if (s.Length != 0)
{
map["Style"] = s;
}
}
PdfNumber count = (PdfNumber)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.COUNT));
if (count != null && count.IntValue < 0)
{
map["Open"] = "false";
}
try {
PdfObject dest = PdfReader.GetPdfObjectRelease(outline.Get(PdfName.DEST));
if (dest != null)
{
MapGotoBookmark(map, dest, pages); //changed by ujihara 2004-06-13
}
else
{
PdfDictionary action = (PdfDictionary)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.A));
if (action != null)
{
if (PdfName.GOTO.Equals(PdfReader.GetPdfObjectRelease(action.Get(PdfName.S))))
{
dest = PdfReader.GetPdfObjectRelease(action.Get(PdfName.D));
if (dest != null)
{
MapGotoBookmark(map, dest, pages);
}
}
else if (PdfName.URI.Equals(PdfReader.GetPdfObjectRelease(action.Get(PdfName.S))))
{
map["Action"] = "URI";
map["URI"] = ((PdfString)PdfReader.GetPdfObjectRelease(action.Get(PdfName.URI))).ToUnicodeString();
}
else if (PdfName.GOTOR.Equals(PdfReader.GetPdfObjectRelease(action.Get(PdfName.S))))
{
dest = PdfReader.GetPdfObjectRelease(action.Get(PdfName.D));
if (dest != null)
{
if (dest.IsString())
{
map["Named"] = dest.ToString();
}
else if (dest.IsName())
{
map["NamedN"] = PdfName.DecodeName(dest.ToString());
}
else if (dest.IsArray())
{
PdfArray arr = (PdfArray)dest;
StringBuilder s = new StringBuilder();
s.Append(arr[0].ToString());
s.Append(' ').Append(arr[1].ToString());
for (int k = 2; k < arr.Size; ++k)
{
s.Append(' ').Append(arr[k].ToString());
}
map["Page"] = s.ToString();
}
}
map["Action"] = "GoToR";
PdfObject file = PdfReader.GetPdfObjectRelease(action.Get(PdfName.F));
if (file != null)
{
if (file.IsString())
{
map["File"] = ((PdfString)file).ToUnicodeString();
}
else if (file.IsDictionary())
{
file = PdfReader.GetPdfObject(((PdfDictionary)file).Get(PdfName.F));
if (file.IsString())
{
map["File"] = ((PdfString)file).ToUnicodeString();
}
}
}
PdfObject newWindow = PdfReader.GetPdfObjectRelease(action.Get(PdfName.NEWWINDOW));
if (newWindow != null)
{
map["NewWindow"] = newWindow.ToString();
}
}
else if (PdfName.LAUNCH.Equals(PdfReader.GetPdfObjectRelease(action.Get(PdfName.S))))
{
map["Action"] = "Launch";
PdfObject file = PdfReader.GetPdfObjectRelease(action.Get(PdfName.F));
if (file == null)
{
file = PdfReader.GetPdfObjectRelease(action.Get(PdfName.WIN));
}
if (file != null)
{
if (file.IsString())
{
map["File"] = ((PdfString)file).ToUnicodeString();
}
else if (file.IsDictionary())
{
file = PdfReader.GetPdfObjectRelease(((PdfDictionary)file).Get(PdfName.F));
if (file.IsString())
{
map["File"] = ((PdfString)file).ToUnicodeString();
}
}
}
}
}
}
}
catch {
//empty on purpose
}
PdfDictionary first = (PdfDictionary)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.FIRST));
if (first != null)
{
map["Kids"] = BookmarkDepth(reader, first, pages);
}
list.Add(map);
outline = (PdfDictionary)PdfReader.GetPdfObjectRelease(outline.Get(PdfName.NEXT));
}
return(list);
}
public void AddAnnotation(PdfAnnotation annot)
{
ArrayList allAnnots = new ArrayList();
if (annot.IsForm())
{
PdfFormField field = (PdfFormField)annot;
if (field.Parent != null)
{
return;
}
ExpandFields(field, allAnnots);
if (cstp.fieldTemplates == null)
{
cstp.fieldTemplates = new Hashtable();
}
}
else
{
allAnnots.Add(annot);
}
for (int k = 0; k < allAnnots.Count; ++k)
{
annot = (PdfAnnotation)allAnnots[k];
if (annot.IsForm())
{
if (!annot.IsUsed())
{
Hashtable templates = annot.Templates;
if (templates != null)
{
foreach (object tpl in templates.Keys)
{
cstp.fieldTemplates[tpl] = null;
}
}
}
PdfFormField field = (PdfFormField)annot;
if (field.Parent == null)
{
AddDocumentField(field.IndirectReference);
}
}
if (annot.IsAnnotation())
{
PdfObject pdfobj = PdfReader.GetPdfObject(pageN.Get(PdfName.ANNOTS), pageN);
PdfArray annots = null;
if (pdfobj == null || !pdfobj.IsArray())
{
annots = new PdfArray();
pageN.Put(PdfName.ANNOTS, annots);
}
else
{
annots = (PdfArray)pdfobj;
}
annots.Add(annot.IndirectReference);
if (!annot.IsUsed())
{
PdfRectangle rect = (PdfRectangle)annot.Get(PdfName.RECT);
if (rect != null && (rect.Left != 0 || rect.Right != 0 || rect.Top != 0 || rect.Bottom != 0))
{
int rotation = reader.GetPageRotation(pageN);
Rectangle pageSize = reader.GetPageSizeWithRotation(pageN);
switch (rotation)
{
case 90:
annot.Put(PdfName.RECT, new PdfRectangle(
pageSize.Top - rect.Bottom,
rect.Left,
pageSize.Top - rect.Top,
rect.Right));
break;
case 180:
annot.Put(PdfName.RECT, new PdfRectangle(
pageSize.Right - rect.Left,
pageSize.Top - rect.Bottom,
pageSize.Right - rect.Right,
pageSize.Top - rect.Top));
break;
case 270:
annot.Put(PdfName.RECT, new PdfRectangle(
rect.Bottom,
pageSize.Right - rect.Left,
rect.Top,
pageSize.Right - rect.Right));
break;
}
}
}
}
if (!annot.IsUsed())
{
annot.SetUsed();
cstp.AddToBody(annot, annot.IndirectReference);
}
}
}
public void AlterContents()
{
if (over == null && under == null)
{
return;
}
PdfArray ar = null;
PdfObject content = PdfReader.GetPdfObject(pageN.Get(PdfName.CONTENTS), pageN);
if (content == null)
{
ar = new PdfArray();
pageN.Put(PdfName.CONTENTS, ar);
}
else if (content.IsArray())
{
ar = (PdfArray)content;
}
else if (content.IsStream())
{
ar = new PdfArray();
ar.Add(pageN.Get(PdfName.CONTENTS));
pageN.Put(PdfName.CONTENTS, ar);
}
else
{
ar = new PdfArray();
pageN.Put(PdfName.CONTENTS, ar);
}
ByteBuffer out_p = new ByteBuffer();
if (under != null)
{
out_p.Append(PdfContents.SAVESTATE);
ApplyRotation(pageN, out_p);
out_p.Append(under.InternalBuffer);
out_p.Append(PdfContents.RESTORESTATE);
}
if (over != null)
{
out_p.Append(PdfContents.SAVESTATE);
}
PdfStream stream = new PdfStream(out_p.ToByteArray());
stream.FlateCompress(cstp.CompressionLevel);
PdfIndirectReference ref1 = cstp.AddToBody(stream).IndirectReference;
ar.AddFirst(ref1);
out_p.Reset();
if (over != null)
{
out_p.Append(' ');
out_p.Append(PdfContents.RESTORESTATE);
out_p.Append(PdfContents.SAVESTATE);
ApplyRotation(pageN, out_p);
out_p.Append(over.InternalBuffer);
out_p.Append(PdfContents.RESTORESTATE);
stream = new PdfStream(out_p.ToByteArray());
stream.FlateCompress(cstp.CompressionLevel);
ar.Add(cstp.AddToBody(stream).IndirectReference);
}
pageN.Put(PdfName.RESOURCES, pageResources.Resources);
}
