public void alterContents() throws IOException {
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 = new ByteBuffer();
if (under != null) {
out.append(PdfContents.SAVESTATE);
applyRotation(pageN, out);
out.append(under.getInternalBuffer());
out.append(PdfContents.RESTORESTATE);
}
if (over != null) out.append(PdfContents.SAVESTATE);
PdfStream stream = new PdfStream(out.toByteArray());
stream.flateCompress(cstp.getCompressionLevel());
PdfIndirectReference ref1 = cstp.addToBody(stream).getIndirectReference();
ar.addFirst(ref1);
out.reset();
if (over != null) {
out.append(' ');
out.append(PdfContents.RESTORESTATE);
out.append(PdfContents.SAVESTATE);
applyRotation(pageN, out);
out.append(over.getInternalBuffer());
out.append(PdfContents.RESTORESTATE);
stream = new PdfStream(out.toByteArray());
stream.flateCompress(cstp.getCompressionLevel());
ar.add(cstp.addToBody(stream).getIndirectReference());
}
pageN.put(PdfName.RESOURCES, pageResources.getResources());
}
private IntHashtable readWidths(PdfArray ws) {
IntHashtable hh = new IntHashtable();
if (ws == null) return hh;
for (int k = 0; k < ws.size(); ++k) {
int c1 = ((PdfNumber) PdfReader.getPdfObjectRelease(ws.getPdfObject(k))).intValue();
PdfObject obj = PdfReader.getPdfObjectRelease(ws.getPdfObject(++k));
if (obj.isArray()) {
PdfArray a2 = (PdfArray) obj;
for (int j = 0; j < a2.size(); ++j) {
int c2 = ((PdfNumber) PdfReader.getPdfObjectRelease(a2.getPdfObject(j))).intValue();
hh.put(c1++, c2);
}
} else {
int c2 = ((PdfNumber) obj).intValue();
int w = ((PdfNumber) PdfReader.getPdfObjectRelease(ws.getPdfObject(++k))).intValue();
for (; c1 <= c2; ++c1) hh.put(c1, w);
}
}
return hh;
}
public void addAnnotation(PdfAnnotation annot) {
try {
ArrayList allAnnots = new ArrayList();
if (annot.isForm()) {
PdfFormField field = (PdfFormField) annot;
if (field.getParent() != null) return;
expandFields(field, allAnnots);
if (cstp.fieldTemplates == null) cstp.fieldTemplates = new HashMap();
} else allAnnots.add(annot);
for (int k = 0; k < allAnnots.size(); ++k) {
annot = (PdfAnnotation) allAnnots.get(k);
if (annot.isForm()) {
if (!annot.isUsed()) {
HashMap templates = annot.getTemplates();
if (templates != null) cstp.fieldTemplates.putAll(templates);
}
PdfFormField field = (PdfFormField) annot;
if (field.getParent() == null) addDocumentField(field.getIndirectReference());
}
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.getIndirectReference());
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.getTop() - rect.bottom(),
rect.left(),
pageSize.getTop() - rect.top(),
rect.right()));
break;
case 180:
annot.put(
PdfName.RECT,
new PdfRectangle(
pageSize.getRight() - rect.left(),
pageSize.getTop() - rect.bottom(),
pageSize.getRight() - rect.right(),
pageSize.getTop() - rect.top()));
break;
case 270:
annot.put(
PdfName.RECT,
new PdfRectangle(
rect.bottom(),
pageSize.getRight() - rect.left(),
rect.top(),
pageSize.getRight() - rect.right()));
break;
}
}
}
}
if (!annot.isUsed()) {
annot.setUsed();
cstp.addToBody(annot, annot.getIndirectReference());
}
}
} catch (IOException e) {
throw new ExceptionConverter(e);
}
}
/**
* Returns a <CODE>PdfObject</CODE> as a <CODE>PdfArray</CODE>, resolving indirect references.
*
* <p>The object corresponding to the specified index is retrieved and resolved to a direct
* object. If it is a <CODE>PdfArray</CODE>, it is cast down and returned as such. Otherwise
* <CODE>null</CODE> is returned.
*
* @param idx The index of the <CODE>PdfObject</CODE> to be returned
* @return the corresponding <CODE>PdfArray</CODE> object, or <CODE>null</CODE>
*/
public PdfArray getAsArray(final int idx) {
PdfArray array = null;
PdfObject orig = getDirectObject(idx);
if (orig != null && orig.isArray()) array = (PdfArray) orig;
return array;
}
/**
* Returns a <CODE>PdfObject</CODE> as a <CODE>PdfArray</CODE>, resolving indirect references.
*
* <p>The object associated with the <CODE>PdfName</CODE> given is retrieved and resolved to a
* direct object. If it is a <CODE>PdfArray</CODE>, it is cast down and returned as such.
* Otherwise <CODE>null</CODE> is returned.
*
* @param key A <CODE>PdfName</CODE>
* @return the associated <CODE>PdfArray</CODE> object, or <CODE>null</CODE>
*/
public PdfArray getAsArray(final PdfName key) {
PdfArray array = null;
PdfObject orig = getDirectObject(key);
if (orig != null && orig.isArray()) array = (PdfArray) orig;
return array;
}
