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/*
* Copyright 2003 by Paulo Soares.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Rectangle;
import com.lowagie.text.ExceptionConverter;
class PdfStamperImp extends PdfWriter {
HashMap readers2intrefs = new HashMap();
HashMap readers2file = new HashMap();
RandomAccessFileOrArray file;
PdfReader reader;
IntHashtable myXref = new IntHashtable();
/** Integer(page number) -> PageStamp */
HashMap pagesToContent = new HashMap();
boolean closed = false;
/** Holds value of property rotateContents. */
private boolean rotateContents = true;
protected AcroFields acroFields;
protected boolean flat = false;
protected int namePtr[] = {0};
protected boolean namedAsNames;
protected List newBookmarks;
protected HashSet partialFlattening = new HashSet();
protected boolean useVp = false;
protected int vp = 0;
protected HashMap fieldTemplates = new HashMap();
protected boolean fieldsAdded = false;
protected int sigFlags = 0;
protected boolean append;
protected IntHashtable marked;
/** Creates new PdfStamperImp.
* @param reader the read PDF
* @param os the output destination
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @throws DocumentException on error
*/
PdfStamperImp(PdfReader reader, OutputStream os, char pdfVersion, boolean append) throws DocumentException, IOException {
super(new PdfDocument(), os);
if (reader.isTampered())
throw new DocumentException("The original document was reused. Read it again from file.");
reader.setTampered(true);
this.reader = reader;
file = reader.getSafeFile();
this.append = append;
if (append) {
if (reader.isRebuilt())
throw new DocumentException("Append mode requires a document without errors even if recovery was possible.");
if (reader.isEncrypted())
throw new DocumentException("Append mode requires a document without encryption.");
HEADER = getISOBytes("\n");
file.reOpen();
byte buf[] = new byte[8192];
int n;
while ((n = file.read(buf)) > 0)
this.os.write(buf, 0, n);
file.close();
prevxref = reader.getLastXref();
reader.setAppendable(true);
}
else {
if (pdfVersion == 0)
super.setPdfVersion(reader.getPdfVersion());
else
super.setPdfVersion(pdfVersion);
}
super.open();
pdf.addWriter(this);
if (append) {
body.setRefnum(reader.getXrefSize());
marked = new IntHashtable();
if (reader.isNewXrefType())
setFullCompression();
}
}
void close(HashMap moreInfo) throws DocumentException, IOException {
if (closed)
return;
if (useVp) {
reader.setViewerPreferences(vp);
markUsed(reader.getTrailer().get(PdfName.ROOT));
}
if (flat)
flatFields();
addFieldResources();
if (sigFlags != 0) {
PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM), reader.getCatalog());
if (acroForm != null) {
acroForm.put(PdfName.SIGFLAGS, new PdfNumber(sigFlags));
markUsed(acroForm);
}
}
closed = true;
addSharedObjectsToBody();
setOutlines();
setJavaScript();
PRIndirectReference iInfo = null;
try {
file.reOpen();
alterContents();
PdfObject xb[] = reader.xrefObj;
int idx = 1;
iInfo = (PRIndirectReference)reader.trailer.get(PdfName.INFO);
int skip = -1;
if (iInfo != null)
skip = iInfo.getNumber();
int rootN = ((PRIndirectReference)reader.trailer.get(PdfName.ROOT)).getNumber();
if (append) {
int keys[] = marked.getKeys();
for (int k = 0; k < keys.length; ++k) {
int j = keys[k];
if (xb[j] != null && skip != j) {
addToBody(xb[j], j, j != rootN);
}
}
}
else {
for (int k = 1; k < xb.length; ++k) {
if (xb[k] != null && skip != k) {
addToBody(xb[k], getNewObjectNumber(reader, k, 0), k != rootN);
}
}
}
}
finally {
try {
file.close();
}
catch (Exception e) {
// empty on purpose
}
}
PdfIndirectReference encryption = null;
PdfObject fileID = null;
if (crypto != null) {
PdfIndirectObject encryptionObject = addToBody(crypto.getEncryptionDictionary(), false);
encryption = encryptionObject.getIndirectReference();
fileID = crypto.getFileID();
}
PRIndirectReference iRoot = (PRIndirectReference)reader.trailer.get(PdfName.ROOT);
PdfIndirectReference root = new PdfIndirectReference(0, getNewObjectNumber(reader, iRoot.getNumber(), 0));
PdfIndirectReference info = null;
PdfDictionary oldInfo = (PdfDictionary)PdfReader.getPdfObject(iInfo);
PdfDictionary newInfo = new PdfDictionary();
if (oldInfo != null) {
for (Iterator i = oldInfo.getKeys().iterator(); i.hasNext();) {
PdfName key = (PdfName)i.next();
PdfObject value = PdfReader.getPdfObject(oldInfo.get(key));
newInfo.put(key, value);
}
}
if (moreInfo != null) {
for (Iterator i = moreInfo.keySet().iterator(); i.hasNext();) {
String key = (String)i.next();
PdfName keyName = new PdfName(key);
String value = (String)moreInfo.get(key);
if (value == null)
newInfo.remove(keyName);
else
newInfo.put(keyName, new PdfString(value, PdfObject.TEXT_UNICODE));
}
}
if (append) {
if (iInfo == null)
info = addToBody(newInfo, false).getIndirectReference();
else
info = addToBody(newInfo, iInfo.getNumber(), false).getIndirectReference();
}
else {
if (!newInfo.getKeys().isEmpty())
info = addToBody(newInfo, false).getIndirectReference();
}
// write the cross-reference table of the body
body.writeCrossReferenceTable(os, root, info, encryption, fileID, prevxref);
if (fullCompression) {
os.write(getISOBytes("startxref\n"));
os.write(getISOBytes(String.valueOf(body.offset())));
os.write(getISOBytes("\n%%EOF\n"));
}
else {
PdfTrailer trailer = new PdfTrailer(body.size(),
body.offset(),
root,
info,
encryption,
fileID, prevxref);
trailer.toPdf(this, os);
}
os.flush();
if (isCloseStream())
os.close();
}
void applyRotation(int pageNumber, ByteBuffer out) {
if (!rotateContents)
return;
Rectangle page = reader.getPageSizeWithRotation(pageNumber);
int rotation = page.getRotation();
switch (rotation) {
case 90:
out.append(PdfContents.ROTATE90);
out.append(page.top());
out.append(' ').append('0').append(PdfContents.ROTATEFINAL);
break;
case 180:
out.append(PdfContents.ROTATE180);
out.append(page.right());
out.append(' ');
out.append(page.top());
out.append(PdfContents.ROTATEFINAL);
break;
case 270:
out.append(PdfContents.ROTATE270);
out.append('0').append(' ');
out.append(page.right());
out.append(PdfContents.ROTATEFINAL);
break;
}
}
void alterContents() throws IOException {
for (Iterator i = pagesToContent.keySet().iterator(); i.hasNext();) {
Integer pageNumber = (Integer)i.next();
PageStamp ps = (PageStamp)pagesToContent.get(pageNumber);
PdfDictionary pdic = reader.getPageN(pageNumber.intValue());
markUsed(pdic);
PdfArray ar = null;
PdfObject content = PdfReader.getPdfObject(pdic.get(PdfName.CONTENTS), pdic);
if (content == null) {
ar = new PdfArray();
pdic.put(PdfName.CONTENTS, ar);
}
else if (content.isArray()) {
ar = (PdfArray)content;
markUsed(ar);
}
else if (content.isStream()) {
ar = new PdfArray();
ar.add(pdic.get(PdfName.CONTENTS));
pdic.put(PdfName.CONTENTS, ar);
}
else {
ar = new PdfArray();
pdic.put(PdfName.CONTENTS, ar);
}
ByteBuffer out = new ByteBuffer();
if (ps.under != null) {
out.append(PdfContents.SAVESTATE);
applyRotation(pageNumber.intValue(), out);
out.append(ps.under.getInternalBuffer());
out.append(PdfContents.RESTORESTATE);
}
if (ps.over != null)
out.append(PdfContents.SAVESTATE);
PdfStream stream = new PdfStream(out.toByteArray());
try{stream.flateCompress();}catch(Exception e){throw new ExceptionConverter(e);}
ar.addFirst(addToBody(stream).getIndirectReference());
out.reset();
if (ps.over != null) {
out.append(' ');
out.append(PdfContents.RESTORESTATE);
out.append(PdfContents.SAVESTATE);
applyRotation(pageNumber.intValue(), out);
out.append(ps.over.getInternalBuffer());
out.append(PdfContents.RESTORESTATE);
stream = new PdfStream(out.toByteArray());
try{stream.flateCompress();}catch(Exception e){throw new ExceptionConverter(e);}
ar.add(addToBody(stream).getIndirectReference());
}
alterResources(ps);
}
}
void alterResources(PageStamp ps) {
PdfDictionary dic = reader.getPageN(ps.pageNumber);
dic.put(PdfName.RESOURCES, ps.pageResources.getResources());
}
protected int getNewObjectNumber(PdfReader reader, int number, int generation) {
IntHashtable ref = (IntHashtable)readers2intrefs.get(reader);
if (ref != null) {
int n = ref.get(number);
if (n == 0) {
n = getIndirectReferenceNumber();
ref.put(number, n);
}
return n;
}
if (currentPdfReaderInstance == null) {
if (append)
return number;
int n = myXref.get(number);
if (n == 0) {
n = getIndirectReferenceNumber();
myXref.put(number, n);
}
return n;
}
else
return currentPdfReaderInstance.getNewObjectNumber(number, generation);
}
RandomAccessFileOrArray getReaderFile(PdfReader reader) {
if (readers2intrefs.containsKey(reader)) {
RandomAccessFileOrArray raf = (RandomAccessFileOrArray)readers2file.get(reader);
if (raf != null)
return raf;
return reader.getSafeFile();
}
if (currentPdfReaderInstance == null)
return file;
else
return currentPdfReaderInstance.getReaderFile();
}
public void registerReader(PdfReader reader, boolean openFile) throws IOException {
if (readers2intrefs.containsKey(reader))
return;
readers2intrefs.put(reader, new IntHashtable());
if (openFile) {
RandomAccessFileOrArray raf = reader.getSafeFile();
readers2file.put(reader, raf);
raf.reOpen();
}
}
public void unRegisterReader(PdfReader reader) {
if (!readers2intrefs.containsKey(reader))
return;
readers2intrefs.remove(reader);
RandomAccessFileOrArray raf = (RandomAccessFileOrArray)readers2file.get(reader);
if (raf == null)
return;
readers2file.remove(reader);
try{raf.close();}catch(Exception e){}
}
static void findAllObjects(PdfReader reader, PdfObject obj, IntHashtable hits) {
if (obj == null)
return;
switch (obj.type()) {
case PdfObject.INDIRECT:
PRIndirectReference iref = (PRIndirectReference)obj;
if (reader != iref.getReader())
return;
if (hits.containsKey(iref.getNumber()))
return;
hits.put(iref.getNumber(), 1);
findAllObjects(reader, PdfReader.getPdfObject(obj), hits);
return;
case PdfObject.ARRAY:
ArrayList lst = ((PdfArray)obj).getArrayList();
for (int k = 0; k < lst.size(); ++k) {
findAllObjects(reader, (PdfObject)lst.get(k), hits);
}
return;
case PdfObject.DICTIONARY:
PdfDictionary dic = (PdfDictionary)obj;
for (Iterator it = dic.getKeys().iterator(); it.hasNext();) {
PdfName name = (PdfName)it.next();
findAllObjects(reader, dic.get(name), hits);
}
return;
}
}
public void addComments(FdfReader fdf) throws IOException{
if (readers2intrefs.containsKey(fdf))
return;
PdfDictionary catalog = fdf.getCatalog();
catalog = (PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.FDF));
if (catalog == null)
return;
PdfArray annots = (PdfArray)PdfReader.getPdfObject(catalog.get(PdfName.ANNOTS));
if (annots == null || annots.size() == 0)
return;
registerReader(fdf, false);
IntHashtable hits = new IntHashtable();
ArrayList an = new ArrayList();
ArrayList ar = annots.getArrayList();
for (int k = 0; k < ar.size(); ++k) {
PdfObject obj = (PdfObject)ar.get(k);
PdfDictionary annot = (PdfDictionary)PdfReader.getPdfObject(obj);
PdfNumber page = (PdfNumber)PdfReader.getPdfObject(annot.get(PdfName.PAGE));
if (page == null || page.intValue() >= reader.getNumberOfPages())
continue;
findAllObjects(fdf, obj, hits);
an.add(obj);
}
int arhits[] = hits.getKeys();
for (int k = 0; k < arhits.length; ++k) {
int n = arhits[k];
addToBody(fdf.xrefObj[n], getNewObjectNumber(fdf, n, 0));
}
for (int k = 0; k < an.size(); ++k) {
PdfObject obj = (PdfObject)an.get(k);
PdfDictionary annot = (PdfDictionary)PdfReader.getPdfObject(obj);
PdfNumber page = (PdfNumber)PdfReader.getPdfObject(annot.get(PdfName.PAGE));
PdfDictionary dic = reader.getPageN(page.intValue() + 1);
PdfArray annotsp = (PdfArray)PdfReader.getPdfObject(dic.get(PdfName.ANNOTS), dic);
if (annotsp == null) {
annotsp = new PdfArray();
dic.put(PdfName.ANNOTS, annotsp);
markUsed(dic);
}
markUsed(annotsp);
annotsp.add(obj);
}
}
PageStamp getPageStamp(int pageNum) {
Integer page = new Integer(pageNum);
PageStamp ps = (PageStamp)pagesToContent.get(page);
if (ps == null) {
ps = new PageStamp(this, reader, pageNum);
pagesToContent.put(page, ps);
}
return ps;
}
PdfContentByte getUnderContent(int pageNum) {
if (pageNum < 1 || pageNum > reader.getNumberOfPages())
return null;
PageStamp ps = getPageStamp(pageNum);
if (ps.under == null)
ps.under = new StampContent(this, pageNum);
return ps.under;
}
PdfContentByte getOverContent(int pageNum) {
if (pageNum < 1 || pageNum > reader.getNumberOfPages())
return null;
PageStamp ps = getPageStamp(pageNum);
if (ps.over == null)
ps.over = new StampContent(this, pageNum);
return ps.over;
}
/** Getter for property rotateContents.
* @return Value of property rotateContents.
*
*/
boolean isRotateContents() {
return this.rotateContents;
}
/** Setter for property rotateContents.
* @param rotateContents New value of property rotateContents.
*
*/
void setRotateContents(boolean rotateContents) {
this.rotateContents = rotateContents;
}
boolean isContentWritten() {
return body.size() > 1;
}
AcroFields getAcroFields() {
if (acroFields == null)
acroFields = new AcroFields(reader, this);
return acroFields;
}
void setFormFlattening(boolean flat) {
this.flat = flat;
}
boolean partialFormFlattening(String name) {
getAcroFields();
if (!acroFields.getFields().containsKey(name))
return false;
partialFlattening.add(name);
return true;
}
void flatFields() {
if (append)
throw new IllegalArgumentException("Field flattening is not supported in append mode.");
getAcroFields();
HashMap fields = acroFields.getFields();
if (fieldsAdded && partialFlattening.isEmpty()) {
for (Iterator i = fields.keySet().iterator(); i.hasNext();) {
partialFlattening.add(i.next());
}
}
PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM));
ArrayList acroFds = null;
if (acroForm != null) {
PdfArray array = (PdfArray)PdfReader.getPdfObject(acroForm.get(PdfName.FIELDS), acroForm);
if (array != null)
acroFds = array.getArrayList();
}
for (Iterator i = fields.keySet().iterator(); i.hasNext();) {
String name = (String)i.next();
if (!partialFlattening.isEmpty() && !partialFlattening.contains(name))
continue;
AcroFields.Item item = (AcroFields.Item)fields.get(name);
for (int k = 0; k < item.merged.size(); ++k) {
PdfDictionary merged = (PdfDictionary)item.merged.get(k);
PdfNumber ff = (PdfNumber)PdfReader.getPdfObject(merged.get(PdfName.F));
int flags = 0;
if (ff != null)
flags = ff.intValue();
int page = ((Integer)item.page.get(k)).intValue();
PdfDictionary appDic = (PdfDictionary)PdfReader.getPdfObject(merged.get(PdfName.AP));
if (appDic != null && (flags & PdfFormField.FLAGS_PRINT) != 0 && (flags & PdfFormField.FLAGS_HIDDEN) == 0) {
PdfObject obj = appDic.get(PdfName.N);
PdfAppearance app = null;
PdfObject objReal = PdfReader.getPdfObject(obj);
if (obj instanceof PdfIndirectReference && !obj.isIndirect())
app = new PdfAppearance((PdfIndirectReference)obj);
else if (objReal instanceof PdfStream) {
((PdfDictionary)objReal).put(PdfName.SUBTYPE, PdfName.FORM);
app = new PdfAppearance((PdfIndirectReference)obj);
}
else {
if (objReal.isDictionary()) {
PdfName as = (PdfName)PdfReader.getPdfObject(merged.get(PdfName.AS));
if (as != null) {
PdfIndirectReference iref = (PdfIndirectReference)((PdfDictionary)objReal).get(as);
if (iref != null) {
app = new PdfAppearance(iref);
if (iref.isIndirect()) {
objReal = PdfReader.getPdfObject(iref);
((PdfDictionary)objReal).put(PdfName.SUBTYPE, PdfName.FORM);
}
}
}
}
}
if (app != null) {
Rectangle box = PdfReader.getNormalizedRectangle((PdfArray)PdfReader.getPdfObject(merged.get(PdfName.RECT)));
PdfContentByte cb = getOverContent(page);
cb.setLiteral("Q ");
cb.addTemplate(app, box.left(), box.bottom());
cb.setLiteral("q ");
}
}
if (partialFlattening.isEmpty())
continue;
PdfDictionary pageDic = reader.getPageN(page);
PdfArray annots = (PdfArray)PdfReader.getPdfObject(pageDic.get(PdfName.ANNOTS));
if (annots == null)
continue;
ArrayList ar = annots.getArrayList();
for (int idx = 0; idx < ar.size(); ++idx) {
PdfObject ran = (PdfObject)ar.get(idx);
if (!ran.isIndirect())
continue;
PdfObject ran2 = (PdfObject)item.widget_refs.get(k);
if (!ran2.isIndirect())
continue;
if (((PRIndirectReference)ran).getNumber() == ((PRIndirectReference)ran2).getNumber()) {
ar.remove(idx--);
PRIndirectReference wdref = (PRIndirectReference)ran2;
while (true) {
PdfDictionary wd = (PdfDictionary)PdfReader.getPdfObject(wdref);
PRIndirectReference parentRef = (PRIndirectReference)wd.get(PdfName.PARENT);
PdfReader.killIndirect(wdref);
if (parentRef == null) { // reached AcroForm
for (int fr = 0; fr < acroFds.size(); ++fr) {
PdfObject h = (PdfObject)acroFds.get(fr);
if (h.isIndirect() && ((PRIndirectReference)h).getNumber() == wdref.getNumber()) {
acroFds.remove(fr);
--fr;
}
}
break;
}
PdfDictionary parent = (PdfDictionary)PdfReader.getPdfObject(parentRef);
PdfArray kids = (PdfArray)PdfReader.getPdfObject(parent.get(PdfName.KIDS));
ArrayList kar = kids.getArrayList();
for (int fr = 0; fr < kar.size(); ++fr) {
PdfObject h = (PdfObject)kar.get(fr);
if (h.isIndirect() && ((PRIndirectReference)h).getNumber() == wdref.getNumber()) {
kar.remove(fr);
--fr;
}
}
if (!kar.isEmpty())
break;
wdref = parentRef;
}
}
}
if (ar.size() == 0) {
PdfReader.killIndirect(pageDic.get(PdfName.ANNOTS));
pageDic.remove(PdfName.ANNOTS);
}
}
}
if (!fieldsAdded && partialFlattening.isEmpty()) {
for (int page = 1; page <= reader.getNumberOfPages(); ++page) {
PdfDictionary pageDic = reader.getPageN(page);
PdfArray annots = (PdfArray)PdfReader.getPdfObject(pageDic.get(PdfName.ANNOTS));
if (annots == null)
continue;
ArrayList ar = annots.getArrayList();
for (int idx = 0; idx < ar.size(); ++idx) {
PdfObject annoto = PdfReader.getPdfObject((PdfObject)ar.get(idx));
if ((annoto instanceof PdfIndirectReference) && !annoto.isIndirect())
continue;
PdfDictionary annot = (PdfDictionary)annoto;
if (PdfName.WIDGET.equals(annot.get(PdfName.SUBTYPE))) {
ar.remove(idx);
--idx;
}
}
if (ar.size() == 0) {
PdfReader.killIndirect(pageDic.get(PdfName.ANNOTS));
pageDic.remove(PdfName.ANNOTS);
}
}
eliminateAcroformObjects();
}
}
void eliminateAcroformObjects() {
PdfObject acro = reader.getCatalog().get(PdfName.ACROFORM);
if (acro == null)
return;
PdfDictionary acrodic = (PdfDictionary)PdfReader.getPdfObject(acro);
PdfObject iFields = acrodic.get(PdfName.FIELDS);
if (iFields != null) {
PdfDictionary kids = new PdfDictionary();
kids.put(PdfName.KIDS, iFields);
sweepKids(kids);
}
// PdfReader.killIndirect(acro);
// reader.getCatalog().remove(PdfName.ACROFORM);
}
void sweepKids(PdfObject obj) {
PdfObject oo = PdfReader.killIndirect(obj);
if (!oo.isDictionary())
return;
PdfDictionary dic = (PdfDictionary)oo;
PdfArray kids = (PdfArray)PdfReader.killIndirect(dic.get(PdfName.KIDS));
if (kids == null)
return;
ArrayList ar = kids.getArrayList();
for (int k = 0; k < ar.size(); ++k) {
sweepKids((PdfObject)ar.get(k));
}
}
public PdfIndirectReference getPageReference(int page) {
PdfIndirectReference ref = reader.getPageOrigRef(page);
if (ref == null)
throw new IllegalArgumentException("Invalid page number " + page);
return ref;
}
public void addAnnotation(PdfAnnotation annot) {
throw new RuntimeException("Unsupported in this context. Use PdfStamper.addAnnotation()");
}
void addDocumentField(PdfIndirectReference ref) {
PdfDictionary catalog = reader.getCatalog();
PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), catalog);
if (acroForm == null) {
acroForm = new PdfDictionary();
catalog.put(PdfName.ACROFORM, acroForm);
markUsed(catalog);
}
PdfArray fields = (PdfArray)PdfReader.getPdfObject(acroForm.get(PdfName.FIELDS), acroForm);
if (fields == null) {
fields = new PdfArray();
acroForm.put(PdfName.FIELDS, fields);
markUsed(acroForm);
}
fields.add(ref);
markUsed(fields);
}
void addFieldResources() {
if (fieldTemplates.size() == 0)
return;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM), catalog);
if (acroForm == null) {
acroForm = new PdfDictionary();
catalog.put(PdfName.ACROFORM, acroForm);
markUsed(catalog);
}
PdfDictionary dr = (PdfDictionary)PdfReader.getPdfObject(acroForm.get(PdfName.DR), acroForm);
if (dr == null) {
dr = new PdfDictionary();
acroForm.put(PdfName.DR, dr);
markUsed(acroForm);
}
markUsed(dr);
for (Iterator it = fieldTemplates.keySet().iterator(); it.hasNext();) {
PdfTemplate template = (PdfTemplate)it.next();
PdfFormField.mergeResources(dr, (PdfDictionary)template.getResources(), this);
}
PdfDictionary fonts = (PdfDictionary)PdfReader.getPdfObject(dr.get(PdfName.FONT));
if (fonts != null && acroForm.get(PdfName.DA) == null) {
acroForm.put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g "));
markUsed(acroForm);
}
}
void expandFields(PdfFormField field, ArrayList allAnnots) {
allAnnots.add(field);
ArrayList kids = field.getKids();
if (kids != null) {
for (int k = 0; k < kids.size(); ++k)
expandFields((PdfFormField)kids.get(k), allAnnots);
}
}
void addAnnotation(PdfAnnotation annot, int page) {
try {
ArrayList allAnnots = new ArrayList();
if (annot.isForm()) {
fieldsAdded = true;
getAcroFields();
PdfFormField field = (PdfFormField)annot;
if (field.getParent() != null)
return;
expandFields(field, allAnnots);
}
else
allAnnots.add(annot);
for (int k = 0; k < allAnnots.size(); ++k) {
annot = (PdfAnnotation)allAnnots.get(k);
int realPage = page;
if (annot.getPlaceInPage() > 0)
realPage = annot.getPlaceInPage();
if (annot.isForm()) {
if (!annot.isUsed()) {
HashMap templates = annot.getTemplates();
if (templates != null)
fieldTemplates.putAll(templates);
}
PdfFormField field = (PdfFormField)annot;
if (field.getParent() == null)
addDocumentField(field.getIndirectReference());
}
if (annot.isAnnotation()) {
PdfDictionary dic = reader.getPageN(realPage);
PdfArray annots = (PdfArray)PdfReader.getPdfObject(dic.get(PdfName.ANNOTS), dic);
if (annots == null) {
annots = new PdfArray();
dic.put(PdfName.ANNOTS, annots);
markUsed(dic);
}
annots.add(annot.getIndirectReference());
markUsed(annots);
if (!annot.isUsed()) {
PdfRectangle rect = (PdfRectangle)annot.get(PdfName.RECT);
if (rect.left() != 0 || rect.right() != 0 || rect.top() != 0 || rect.bottom() != 0) {
int rotation = reader.getPageRotation(realPage);
Rectangle pageSize = reader.getPageSizeWithRotation(realPage);
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();
addToBody(annot, annot.getIndirectReference());
}
}
}
catch (IOException e) {
throw new ExceptionConverter(e);
}
}
private void outlineTravel(PRIndirectReference outline) {
while (outline != null) {
PdfDictionary outlineR = (PdfDictionary)PdfReader.getPdfObject(outline);
PRIndirectReference first = (PRIndirectReference)outlineR.get(PdfName.FIRST);
if (first != null) {
outlineTravel(first);
}
PdfReader.killIndirect(outlineR.get(PdfName.DEST));
PdfReader.killIndirect(outlineR.get(PdfName.A));
PdfReader.killIndirect(outline);
outline = (PRIndirectReference)outlineR.get(PdfName.NEXT);
}
}
void deleteOutlines() {
PdfDictionary catalog = reader.getCatalog();
PRIndirectReference outlines = (PRIndirectReference)catalog.get(PdfName.OUTLINES);
if (outlines == null)
return;
outlineTravel(outlines);
PdfReader.killIndirect(outlines);
catalog.remove(PdfName.OUTLINES);
markUsed(catalog);
}
void setJavaScript() throws IOException {
ArrayList djs = pdf.getDocumentJavaScript();
if (djs.size() == 0)
return;
PdfDictionary catalog = reader.getCatalog();
PdfDictionary names = (PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.NAMES), catalog);
if (names == null) {
names = new PdfDictionary();
catalog.put(PdfName.NAMES, names);
markUsed(catalog);
}
markUsed(names);
String s = String.valueOf(djs.size() - 1);
int n = s.length();
String pad = "000000000000000";
HashMap maptree = new HashMap();
for (int k = 0; k < djs.size(); ++k) {
s = String.valueOf(k);
s = pad.substring(0, n - s.length()) + s;
maptree.put(s, djs.get(k));
}
PdfDictionary tree = PdfNameTree.writeTree(maptree, this);
names.put(PdfName.JAVASCRIPT, addToBody(tree).getIndirectReference());
}
void setOutlines() throws IOException {
if (newBookmarks == null)
return;
deleteOutlines();
if (newBookmarks.size() == 0)
return;
namedAsNames = (reader.getCatalog().get(PdfName.DESTS) != null);
PdfDictionary top = new PdfDictionary();
PdfIndirectReference topRef = getPdfIndirectReference();
Object kids[] = SimpleBookmark.iterateOutlines(this, topRef, newBookmarks, namedAsNames);
top.put(PdfName.FIRST, (PdfIndirectReference)kids[0]);
top.put(PdfName.LAST, (PdfIndirectReference)kids[1]);
top.put(PdfName.COUNT, new PdfNumber(((Integer)kids[2]).intValue()));
addToBody(top, topRef);
reader.getCatalog().put(PdfName.OUTLINES, topRef);
markUsed(reader.getCatalog());
}
void setOutlines(List outlines) {
newBookmarks = outlines;
}
/**
* Sets the viewer preferences.
* @param preferences the viewer preferences
* @see PdfWriter#setViewerPreferences(int)
*/
public void setViewerPreferences(int preferences) {
useVp = true;
vp |= preferences;
}
/**
* Set the signature flags.
* @param f the flags. This flags are ORed with current ones
*/
public void setSigFlags(int f) {
sigFlags |= f;
}
/** Always throws an UnsupportedOperationException.
* @param actionType ignore
* @param action ignore
* @throws PdfException ignore
* @see PdfStamper#setPageAction(PdfName, PdfAction, int)
*/
public void setPageAction(PdfName actionType, PdfAction action) throws PdfException {
throw new UnsupportedOperationException("Use setPageAction(PdfName actionType, PdfAction action, int page)");
}
/**
* Sets the open and close page additional action.
* @param actionType the action type. It can be PdfWriter.PAGE_OPEN
* or PdfWriter.PAGE_CLOSE
* @param action the action to perform
* @param page the page where the action will be applied. The first page is 1
* @throws PdfException if the action type is invalid
*/
void setPageAction(PdfName actionType, PdfAction action, int page) throws PdfException {
if (!actionType.equals(PAGE_OPEN) && !actionType.equals(PAGE_CLOSE))
throw new PdfException("Invalid page additional action type: " + actionType.toString());
PdfDictionary pg = reader.getPageN(page);
PdfDictionary aa = (PdfDictionary)PdfReader.getPdfObject(pg.get(PdfName.AA), pg);
if (aa == null) {
aa = new PdfDictionary();
pg.put(PdfName.AA, aa);
markUsed(pg);
}
aa.put(actionType, action);
markUsed(aa);
}
/**
* Always throws an UnsupportedOperationException.
* @param seconds ignore
*/
public void setDuration(int seconds) {
throw new UnsupportedOperationException("Use setPageAction(PdfName actionType, PdfAction action, int page)");
}
/**
* Always throws an UnsupportedOperationException.
* @param transition ignore
*/
public void setTransition(PdfTransition transition) {
throw new UnsupportedOperationException("Use setPageAction(PdfName actionType, PdfAction action, int page)");
}
/**
* Sets the display duration for the page (for presentations)
* @param seconds the number of seconds to display the page. A negative value removes the entry
* @param page the page where the duration will be applied. The first page is 1
*/
void setDuration(int seconds, int page) {
PdfDictionary pg = reader.getPageN(page);
if (seconds < 0)
pg.remove(PdfName.DUR);
else
pg.put(PdfName.DUR, new PdfNumber(seconds));
markUsed(pg);
}
/**
* Sets the transition for the page
* @param transition the transition object. A null removes the transition
* @param page the page where the transition will be applied. The first page is 1
*/
void setTransition(PdfTransition transition, int page) {
PdfDictionary pg = reader.getPageN(page);
if (transition == null)
pg.remove(PdfName.TRANS);
else
pg.put(PdfName.TRANS, transition.getTransitionDictionary());
markUsed(pg);
}
protected void markUsed(PdfObject obj) {
if (append && obj != null) {
PRIndirectReference ref = null;
if (obj.type() == PdfObject.INDIRECT)
ref = (PRIndirectReference)obj;
else
ref = obj.getIndRef();
if (ref != null)
marked.put(ref.getNumber(), 1);
}
}
protected void markUsed(int num) {
if (append)
marked.put(num, 1);
}
/**
* Getter for property append.
* @return Value of property append.
*/
boolean isAppend() {
return append;
}
static class PageStamp {
int pageNumber;
StampContent under;
StampContent over;
PageResources pageResources;
PageStamp(PdfStamperImp stamper, PdfReader reader, int pageNumber) {
this.pageNumber = pageNumber;
pageResources = new PageResources();
PdfDictionary dic = reader.getPageN(pageNumber);
PdfDictionary resources = (PdfDictionary)PdfReader.getPdfObject(dic.get(PdfName.RESOURCES));
pageResources.setOriginalResources(resources, stamper.namePtr);
}
}
}
