CPDF_Object* CPDF_Object::CloneInternal(FX_BOOL bDirect, CFX_MapPtrToPtr* visited) const
{
switch (m_Type) {
case PDFOBJ_BOOLEAN:
return new CPDF_Boolean(((CPDF_Boolean*)this)->m_bValue);
case PDFOBJ_NUMBER:
return new CPDF_Number(((CPDF_Number*)this)->m_bInteger, &((CPDF_Number*)this)->m_Integer);
case PDFOBJ_STRING:
return new CPDF_String(((CPDF_String*)this)->m_String, ((CPDF_String*)this)->IsHex());
case PDFOBJ_NAME:
return new CPDF_Name(((CPDF_Name*)this)->m_Name);
case PDFOBJ_ARRAY: {
CPDF_Array* pCopy = new CPDF_Array();
CPDF_Array* pThis = (CPDF_Array*)this;
int n = pThis->GetCount();
for (int i = 0; i < n; i ++) {
CPDF_Object* value = (CPDF_Object*)pThis->m_Objects.GetAt(i);
pCopy->m_Objects.Add(value->CloneInternal(bDirect, visited));
}
return pCopy;
}
case PDFOBJ_DICTIONARY: {
CPDF_Dictionary* pCopy = new CPDF_Dictionary();
CPDF_Dictionary* pThis = (CPDF_Dictionary*)this;
FX_POSITION pos = pThis->m_Map.GetStartPosition();
while (pos) {
CFX_ByteString key;
CPDF_Object* value;
pThis->m_Map.GetNextAssoc(pos, key, (void*&)value);
pCopy->m_Map.SetAt(key, value->CloneInternal(bDirect, visited));
}
return pCopy;
}
case PDFOBJ_NULL: {
return new CPDF_Null;
}
case PDFOBJ_STREAM: {
CPDF_Stream* pThis = (CPDF_Stream*)this;
CPDF_StreamAcc acc;
acc.LoadAllData(pThis, TRUE);
FX_DWORD streamSize = acc.GetSize();
CPDF_Stream* pObj;
if (pThis->GetDict())
pObj = new CPDF_Stream(acc.DetachData(), streamSize, (CPDF_Dictionary*)((CPDF_Object*)pThis->GetDict())->CloneInternal(bDirect, visited));
else
pObj = new CPDF_Stream(acc.DetachData(), streamSize, NULL);
return pObj;
}
case PDFOBJ_REFERENCE: {
CPDF_Reference* pRef = (CPDF_Reference*)this;
FX_DWORD obj_num = pRef->m_RefObjNum;
if (bDirect && !visited->GetValueAt((void*)(FX_UINTPTR)obj_num)) {
visited->SetAt((void*)(FX_UINTPTR)obj_num, (void*)1);
CPDF_Object* ret;
if (pRef->GetDirect())
ret = pRef->GetDirect()->CloneInternal(TRUE, visited);
else
ret = NULL;
return ret;
} else {
return new CPDF_Reference(pRef->m_pObjList, obj_num);
}
}
}
return NULL;
}
CPDF_Object* CPDF_Object::CloneInternal(FX_BOOL bDirect,
std::set<FX_DWORD>* visited) const {
switch (m_Type) {
case PDFOBJ_BOOLEAN:
return new CPDF_Boolean(AsBoolean()->m_bValue);
case PDFOBJ_NUMBER: {
const CPDF_Number* pThis = AsNumber();
return new CPDF_Number(pThis->m_bInteger ? pThis->m_Integer
: pThis->m_Float);
}
case PDFOBJ_STRING: {
const CPDF_String* pString = AsString();
return new CPDF_String(pString->m_String, pString->IsHex());
}
case PDFOBJ_NAME:
return new CPDF_Name(AsName()->m_Name);
case PDFOBJ_ARRAY: {
CPDF_Array* pCopy = new CPDF_Array();
const CPDF_Array* pThis = AsArray();
int n = pThis->GetCount();
for (int i = 0; i < n; i++) {
CPDF_Object* value = pThis->m_Objects.GetAt(i);
pCopy->m_Objects.Add(value->CloneInternal(bDirect, visited));
}
return pCopy;
}
case PDFOBJ_DICTIONARY: {
CPDF_Dictionary* pCopy = new CPDF_Dictionary();
const CPDF_Dictionary* pThis = AsDictionary();
for (const auto& it : *pThis) {
pCopy->m_Map.insert(std::make_pair(
it.first, it.second->CloneInternal(bDirect, visited)));
}
return pCopy;
}
case PDFOBJ_NULL: {
return new CPDF_Null;
}
case PDFOBJ_STREAM: {
const CPDF_Stream* pThis = AsStream();
CPDF_StreamAcc acc;
acc.LoadAllData(pThis, TRUE);
FX_DWORD streamSize = acc.GetSize();
CPDF_Dictionary* pDict = pThis->GetDict();
if (pDict) {
pDict = ToDictionary(pDict->CloneInternal(bDirect, visited));
}
return new CPDF_Stream(acc.DetachData(), streamSize, pDict);
}
case PDFOBJ_REFERENCE: {
const CPDF_Reference* pRef = AsReference();
FX_DWORD obj_num = pRef->GetRefObjNum();
if (bDirect && !pdfium::ContainsKey(*visited, obj_num)) {
visited->insert(obj_num);
auto* pDirect = pRef->GetDirect();
return pDirect ? pDirect->CloneInternal(TRUE, visited) : nullptr;
}
return new CPDF_Reference(pRef->m_pObjList, obj_num);
}
}
return NULL;
}
