private static void CopyTo(PdfDocument destDocument, IDictionary<PdfPage, PdfPage> page2page, PdfDocument
callingDocument, bool copyFromDestDocument, int insertIndex) {
StructureTreeCopier.CopyStructureResult copiedStructure = CopyStructure(destDocument, page2page, callingDocument
, copyFromDestDocument);
PdfStructTreeRoot destStructTreeRoot = destDocument.GetStructTreeRoot();
destStructTreeRoot.MakeIndirect(destDocument);
foreach (PdfDictionary copied in copiedStructure.GetTopsList()) {
destStructTreeRoot.AddKidObject(insertIndex, copied);
if (insertIndex > -1) {
++insertIndex;
}
}
if (!copyFromDestDocument) {
if (!copiedStructure.GetCopiedNamespaces().IsEmpty()) {
destStructTreeRoot.GetNamespacesObject().AddAll(copiedStructure.GetCopiedNamespaces());
}
PdfDictionary srcRoleMap = callingDocument.GetStructTreeRoot().GetRoleMap();
PdfDictionary destRoleMap = destStructTreeRoot.GetRoleMap();
foreach (KeyValuePair<PdfName, PdfObject> mappingEntry in srcRoleMap.EntrySet()) {
if (!destRoleMap.ContainsKey(mappingEntry.Key)) {
destRoleMap.Put(mappingEntry.Key, mappingEntry.Value);
}
else {
if (!mappingEntry.Value.Equals(destRoleMap.Get(mappingEntry.Key))) {
String srcMapping = mappingEntry.Key + " -> " + mappingEntry.Value;
String destMapping = mappingEntry.Key + " -> " + destRoleMap.Get(mappingEntry.Key);
ILog logger = LogManager.GetLogger(typeof(StructureTreeCopier));
logger.Warn(String.Format(iText.IO.LogMessageConstant.ROLE_MAPPING_FROM_SOURCE_IS_NOT_COPIED_ALREADY_EXIST
, srcMapping, destMapping));
}
}
}
}
}
/// <summary>
/// Copies structure to a
/// <paramref name="destDocument"/>
/// and insert it in a specified position in the document.
/// <br/><br/>
/// NOTE: Works only for
/// <c>PdfStructTreeRoot</c>
/// that is read from the document opened in reading mode,
/// otherwise an exception is thrown.
/// <br/>
/// Also, to insert a tagged page into existing tag structure, existing tag structure shouldn't be flushed, otherwise
/// an exception may be raised.
/// </summary>
/// <param name="destDocument">document to copy structure to.</param>
/// <param name="insertBeforePage">indicates where the structure to be inserted.</param>
/// <param name="page2page">association between original page and copied page.</param>
public static void CopyTo(PdfDocument destDocument, int insertBeforePage, IDictionary <PdfPage, PdfPage> page2page
, PdfDocument callingDocument)
{
if (!destDocument.IsTagged())
{
return;
}
// Here we separate the structure tree in two parts: struct elems that belong to the pages which indexes are
// less then insertBeforePage and those struct elems that belong to other pages. Some elems might belong
// to both parts and actually these are the ones that we are looking for.
ICollection <PdfObject> firstPartElems = new HashSet <PdfObject>();
PdfStructTreeRoot destStructTreeRoot = destDocument.GetStructTreeRoot();
for (int i = 1; i < insertBeforePage; ++i)
{
PdfPage pageOfFirstHalf = destDocument.GetPage(i);
ICollection <PdfMcr> pageMcrs = destStructTreeRoot.GetPageMarkedContentReferences(pageOfFirstHalf);
if (pageMcrs != null)
{
foreach (PdfMcr mcr in pageMcrs)
{
firstPartElems.Add(mcr.GetPdfObject());
PdfDictionary top = AddAllParentsToSet(mcr, firstPartElems);
if (top.IsFlushed())
{
throw new PdfException(PdfException.TagFromTheExistingTagStructureIsFlushedCannotAddCopiedPageTags);
}
}
}
}
IList <PdfDictionary> clonedTops = new List <PdfDictionary>();
PdfArray tops = destStructTreeRoot.GetKidsObject();
// Now we "walk" through all the elems which belong to the first part, and look for the ones that contain both
// kids from first and second part. We clone found elements and move kids from the second part to cloned elems.
int lastTopBefore = 0;
for (int i_1 = 0; i_1 < tops.Size(); ++i_1)
{
PdfDictionary top = tops.GetAsDictionary(i_1);
if (firstPartElems.Contains(top))
{
lastTopBefore = i_1;
StructureTreeCopier.LastClonedAncestor lastCloned = new StructureTreeCopier.LastClonedAncestor();
lastCloned.ancestor = top;
PdfDictionary topClone = top.Clone(ignoreKeysForClone);
topClone.Put(PdfName.P, destStructTreeRoot.GetPdfObject());
lastCloned.clone = topClone;
SeparateKids(top, firstPartElems, lastCloned);
if (topClone.ContainsKey(PdfName.K))
{
topClone.MakeIndirect(destDocument);
clonedTops.Add(topClone);
}
}
}
for (int i_2 = 0; i_2 < clonedTops.Count; ++i_2)
{
destStructTreeRoot.AddKidObject(lastTopBefore + 1 + i_2, clonedTops[i_2]);
}
CopyTo(destDocument, page2page, callingDocument, false, lastTopBefore + 1);
}
