From 3ba6010b63a97271f23ed921a58dc9298d2e74ef Mon Sep 17 00:00:00 2001 From: Dan Sinclair Date: Mon, 8 May 2017 17:07:19 -0400 Subject: Remove CPDF_Creator friends This CL removes the friend declarations from CPDF_Creator and adds accessor methods instead. Change-Id: I6d8f67b5944aed34af00ff6ea9d23fe7d17cec18 Reviewed-on: https://pdfium-review.googlesource.com/5112 Commit-Queue: dsinclair Reviewed-by: Tom Sepez --- core/fpdfapi/edit/cpdf_creator.h | 27 ++++- core/fpdfapi/edit/fpdf_edit_create.cpp | 181 ++++++++++++++++----------------- 2 files changed, 113 insertions(+), 95 deletions(-) (limited to 'core/fpdfapi/edit') diff --git a/core/fpdfapi/edit/cpdf_creator.h b/core/fpdfapi/edit/cpdf_creator.h index 5695de1e20..9a15021c25 100644 --- a/core/fpdfapi/edit/cpdf_creator.h +++ b/core/fpdfapi/edit/cpdf_creator.h @@ -37,10 +37,29 @@ class CPDF_Creator { int32_t Continue(); bool SetFileVersion(int32_t fileVersion = 17); - private: - friend class CPDF_ObjectStream; - friend class CPDF_XRefStream; + CFX_FileBufferArchive* GetFile() { return &m_File; } + + FX_FILESIZE GetOffset() const { return m_Offset; } + void IncrementOffset(FX_FILESIZE inc); + uint32_t GetNextObjectNumber() { return ++m_dwLastObjNum; } + uint32_t GetLastObjectNumber() const { return m_dwLastObjNum; } + int32_t GetObjectStreamSize() const { return m_ObjectStreamSize; } + CPDF_CryptoHandler* GetCryptoHandler() { return m_pCryptoHandler.Get(); } + CPDF_Document* GetDocument() const { return m_pDocument; } + CPDF_Array* GetIDArray() const { return m_pIDArray.get(); } + CPDF_Dictionary* GetEncryptDict() const { return m_pEncryptDict; } + uint32_t GetEncryptObjectNumber() const { return m_dwEncryptObjNum; } + + uint32_t GetObjectOffset(uint32_t objnum) { return m_ObjectOffsets[objnum]; } + bool HasObjectNumber(uint32_t objnum) { + return m_ObjectOffsets.find(objnum) != m_ObjectOffsets.end(); + } + void SetObjectOffset(uint32_t objnum, FX_FILESIZE offset) { + m_ObjectOffsets[objnum] = offset; + } + bool IsIncremental() const { return !!(m_dwFlags & FPDFCREATE_INCREMENTAL); } + private: bool Create(uint32_t flags); void Clear(); @@ -72,6 +91,8 @@ class CPDF_Creator { uint32_t objnum, CPDF_CryptoHandler* pCrypto); + bool IsXRefNeedEnd(); + CPDF_Document* const m_pDocument; CPDF_Parser* const m_pParser; bool m_bSecurityChanged; diff --git a/core/fpdfapi/edit/fpdf_edit_create.cpp b/core/fpdfapi/edit/fpdf_edit_create.cpp index 5b4c3ad4d0..ecae681eb0 100644 --- a/core/fpdfapi/edit/fpdf_edit_create.cpp +++ b/core/fpdfapi/edit/fpdf_edit_create.cpp @@ -26,6 +26,7 @@ #include "core/fpdfapi/parser/fpdf_parser_utility.h" #include "core/fxcrt/cfx_maybe_owned.h" #include "core/fxcrt/fx_extension.h" +#include "third_party/base/numerics/safe_math.h" #include "third_party/base/ptr_util.h" #include "third_party/base/stl_util.h" @@ -180,17 +181,6 @@ void AppendIndex2(CFX_ByteTextBuf& buffer, uint32_t objnum, int32_t index) { buffer.AppendByte(static_cast(index)); } -bool IsXRefNeedEnd(CPDF_XRefStream* pXRef, uint32_t flag) { - if (!(flag & FPDFCREATE_INCREMENTAL)) - return false; - - uint32_t iCount = 0; - for (const auto& pair : pXRef->m_IndexArray) - iCount += pair.count; - - return iCount >= kXRefStreamMaxSize; -} - int32_t OutputIndex(CFX_FileBufferArchive* pFile, FX_FILESIZE offset) { if (pFile->AppendByte(static_cast(offset >> 24)) < 0) return -1; @@ -348,30 +338,29 @@ FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator) { if (m_Items.empty()) return 0; - CFX_FileBufferArchive* pFile = &pCreator->m_File; - FX_FILESIZE ObjOffset = pCreator->m_Offset; + CFX_FileBufferArchive* pFile = pCreator->GetFile(); + FX_FILESIZE ObjOffset = pCreator->GetOffset(); if (!m_dwObjNum) - m_dwObjNum = ++pCreator->m_dwLastObjNum; + m_dwObjNum = pCreator->GetNextObjectNumber(); CFX_ByteTextBuf tempBuffer; for (const auto& pair : m_Items) tempBuffer << pair.objnum << " " << pair.offset << " "; - FX_FILESIZE& offset = pCreator->m_Offset; int32_t len = pFile->AppendDWord(m_dwObjNum); if (len < 0) return -1; - offset += len; + pCreator->IncrementOffset(len); if ((len = pFile->AppendString(" 0 obj\r\n<IncrementOffset(len); uint32_t iCount = pdfium::CollectionSize(m_Items); if ((len = pFile->AppendDWord(iCount)) < 0) return -1; - offset += len; + pCreator->IncrementOffset(len); if (pFile->AppendString("/First ") < 0) return -1; if ((len = pFile->AppendDWord((uint32_t)tempBuffer.GetLength())) < 0) @@ -379,31 +368,31 @@ FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator) { if (pFile->AppendString("/Length ") < 0) return -1; - offset += len + 15; + pCreator->IncrementOffset(len + 15); tempBuffer << m_Buffer; CPDF_FlateEncoder encoder(tempBuffer.GetBuffer(), tempBuffer.GetLength(), true, false); - CPDF_Encryptor encryptor(pCreator->m_pCryptoHandler.Get(), m_dwObjNum, + CPDF_Encryptor encryptor(pCreator->GetCryptoHandler(), m_dwObjNum, encoder.m_pData.Get(), encoder.m_dwSize); if ((len = pFile->AppendDWord(encryptor.m_dwSize)) < 0) return -1; - offset += len; + pCreator->IncrementOffset(len); if (pFile->AppendString("/Filter /FlateDecode") < 0) return -1; - offset += 20; + pCreator->IncrementOffset(20); if ((len = pFile->AppendString(">>stream\r\n")) < 0) return -1; if (pFile->AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) return -1; - offset += len + encryptor.m_dwSize; + pCreator->IncrementOffset(len + encryptor.m_dwSize); if ((len = pFile->AppendString("\r\nendstream\r\nendobj\r\n")) < 0) return -1; - offset += len; + pCreator->IncrementOffset(len); return ObjOffset; } @@ -427,7 +416,7 @@ int32_t CPDF_XRefStream::CompressIndirectObject(uint32_t dwObjNum, m_ObjStream.CompressIndirectObject(dwObjNum, pObj); if (pdfium::CollectionSize(m_ObjStream.m_Items) < - pCreator->m_ObjectStreamSize && + pCreator->GetObjectStreamSize() && m_ObjStream.m_Buffer.GetLength() < kObjectStreamMaxLength) { return 1; } @@ -443,7 +432,7 @@ int32_t CPDF_XRefStream::CompressIndirectObject(uint32_t dwObjNum, m_ObjStream.CompressIndirectObject(dwObjNum, pBuffer, dwSize); if (pdfium::CollectionSize(m_ObjStream.m_Items) < - pCreator->m_ObjectStreamSize && + pCreator->GetObjectStreamSize() && m_ObjStream.m_Buffer.GetLength() < kObjectStreamMaxLength) { return 1; } @@ -460,11 +449,11 @@ int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, bool bEOF) { uint32_t& dwObjStmNum = m_ObjStream.m_dwObjNum; if (!dwObjStmNum) - dwObjStmNum = ++pCreator->m_dwLastObjNum; + dwObjStmNum = pCreator->GetNextObjectNumber(); int32_t iSize = pdfium::CollectionSize(m_ObjStream.m_Items); size_t iSeg = m_IndexArray.size(); - if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) { + if (!pCreator->IsIncremental()) { if (m_dwTempObjNum == 0) { AppendIndex0(m_Buffer, true); m_dwTempObjNum++; @@ -472,11 +461,10 @@ int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, bool bEOF) { uint32_t end_num = m_IndexArray.back().objnum + m_IndexArray.back().count; int index = 0; for (; m_dwTempObjNum < end_num; m_dwTempObjNum++) { - auto it = pCreator->m_ObjectOffsets.find(m_dwTempObjNum); - if (it != pCreator->m_ObjectOffsets.end()) { + if (pCreator->HasObjectNumber(m_dwTempObjNum)) { if (index >= iSize || m_dwTempObjNum != m_ObjStream.m_Items[index].objnum) { - AppendIndex1(m_Buffer, it->second); + AppendIndex1(m_Buffer, pCreator->GetObjectOffset(m_dwTempObjNum)); } else { AppendIndex2(m_Buffer, dwObjStmNum, index++); } @@ -485,7 +473,7 @@ int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, bool bEOF) { } } if (iSize > 0 && bEOF) - pCreator->m_ObjectOffsets[dwObjStmNum] = objOffset; + pCreator->SetObjectOffset(dwObjStmNum, objOffset); m_iSeg = iSeg; if (bEOF) @@ -498,7 +486,7 @@ int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, bool bEOF) { for (uint32_t m = it->objnum; m < it->objnum + it->count; ++m) { if (m_ObjStream.m_index >= iSize || m != m_ObjStream.m_Items[it - m_IndexArray.begin()].objnum) { - AppendIndex1(m_Buffer, pCreator->m_ObjectOffsets[m]); + AppendIndex1(m_Buffer, pCreator->GetObjectOffset(m)); } else { AppendIndex2(m_Buffer, dwObjStmNum, m_ObjStream.m_index++); } @@ -517,45 +505,43 @@ int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, bool bEOF) { } bool CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF) { - FX_FILESIZE offset_tmp = pCreator->m_Offset; - uint32_t objnum = ++pCreator->m_dwLastObjNum; - CFX_FileBufferArchive* pFile = &pCreator->m_File; - bool bIncremental = (pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL) != 0; - if (bIncremental) { + FX_FILESIZE offset_tmp = pCreator->GetOffset(); + uint32_t objnum = pCreator->GetNextObjectNumber(); + CFX_FileBufferArchive* pFile = pCreator->GetFile(); + if (pCreator->IsIncremental()) { AddObjectNumberToIndexArray(objnum); } else { - for (; m_dwTempObjNum < pCreator->m_dwLastObjNum; m_dwTempObjNum++) { - auto it = pCreator->m_ObjectOffsets.find(m_dwTempObjNum); - if (it != pCreator->m_ObjectOffsets.end()) - AppendIndex1(m_Buffer, it->second); + for (; m_dwTempObjNum < pCreator->GetLastObjectNumber(); m_dwTempObjNum++) { + if (pCreator->HasObjectNumber(m_dwTempObjNum)) + AppendIndex1(m_Buffer, pCreator->GetObjectOffset(m_dwTempObjNum)); else AppendIndex0(m_Buffer, false); } } AppendIndex1(m_Buffer, offset_tmp); - FX_FILESIZE& offset = pCreator->m_Offset; + int32_t len = pFile->AppendDWord(objnum); if (len < 0) return false; - offset += len; + pCreator->IncrementOffset(len); if ((len = pFile->AppendString(" 0 obj\r\n<IncrementOffset(len); + if (!pCreator->IsIncremental()) { if ((len = pFile->AppendDWord(0)) < 0) return false; if ((len = pFile->AppendString(" ")) < 0) return false; - offset += len + 1; + pCreator->IncrementOffset(len + 1); if ((len = pFile->AppendDWord(objnum + 1)) < 0) return false; - offset += len; + pCreator->IncrementOffset(len); } else { for (const auto& pair : m_IndexArray) { if ((len = pFile->AppendDWord(pair.objnum)) < 0) @@ -563,13 +549,13 @@ bool CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF) { if (pFile->AppendString(" ") < 0) return false; - offset += len + 1; + pCreator->IncrementOffset(len + 1); if ((len = pFile->AppendDWord(pair.count)) < 0) return false; if (pFile->AppendString(" ") < 0) return false; - offset += len + 1; + pCreator->IncrementOffset(len + 1); } } if (pFile->AppendString("]/Size ") < 0) @@ -577,7 +563,7 @@ bool CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF) { if ((len = pFile->AppendDWord(objnum + 1)) < 0) return false; - offset += len + 7; + pCreator->IncrementOffset(len + 7); if (m_PrevOffset > 0) { if (pFile->AppendString("/Prev ") < 0) return false; @@ -589,7 +575,7 @@ bool CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF) { if (pFile->AppendBlock(offset_buf, offset_len) < 0) return false; - offset += offset_len + 6; + pCreator->IncrementOffset(offset_len + 6); } CPDF_FlateEncoder encoder(m_Buffer.GetBuffer(), m_Buffer.GetLength(), true, @@ -597,45 +583,45 @@ bool CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF) { if (pFile->AppendString("/Filter /FlateDecode") < 0) return false; - offset += 20; + pCreator->IncrementOffset(20); if ((len = pFile->AppendString("/DecodeParms<>")) < 0) { return false; } - offset += len; + pCreator->IncrementOffset(len); if (pFile->AppendString("/Length ") < 0) return false; if ((len = pFile->AppendDWord(encoder.m_dwSize)) < 0) return false; - offset += len + 8; + pCreator->IncrementOffset(len + 8); if (bEOF) { - if ((len = WriteTrailer(pCreator->m_pDocument, pFile, - pCreator->m_pIDArray.get())) < 0) { + if ((len = WriteTrailer(pCreator->GetDocument(), pFile, + pCreator->GetIDArray())) < 0) { return false; } - offset += len; - if (pCreator->m_pEncryptDict) { - uint32_t dwEncryptObjNum = pCreator->m_pEncryptDict->GetObjNum(); + pCreator->IncrementOffset(len); + + if (CPDF_Dictionary* encryptDict = pCreator->GetEncryptDict()) { + uint32_t dwEncryptObjNum = encryptDict->GetObjNum(); if (dwEncryptObjNum == 0) - dwEncryptObjNum = pCreator->m_dwEncryptObjNum; - if ((len = WriteEncryptDictObjectReference(dwEncryptObjNum, pFile)) < 0) { + dwEncryptObjNum = pCreator->GetEncryptObjectNumber(); + if ((len = WriteEncryptDictObjectReference(dwEncryptObjNum, pFile)) < 0) return false; - } - offset += len; + pCreator->IncrementOffset(len); } } if ((len = pFile->AppendString(">>stream\r\n")) < 0) return false; - offset += len; + pCreator->IncrementOffset(len); if (pFile->AppendBlock(encoder.m_pData.Get(), encoder.m_dwSize) < 0) return false; if ((len = pFile->AppendString("\r\nendstream\r\nendobj\r\n")) < 0) return false; - offset += encoder.m_dwSize + len; + pCreator->IncrementOffset(encoder.m_dwSize + len); m_PrevOffset = offset_tmp; return true; } @@ -647,19 +633,18 @@ bool CPDF_XRefStream::End(CPDF_Creator* pCreator, bool bEOF) { } bool CPDF_XRefStream::EndXRefStream(CPDF_Creator* pCreator) { - if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) { + if (!pCreator->IsIncremental()) { AppendIndex0(m_Buffer, true); - for (uint32_t i = 1; i < pCreator->m_dwLastObjNum + 1; i++) { - auto it = pCreator->m_ObjectOffsets.find(i); - if (it != pCreator->m_ObjectOffsets.end()) - AppendIndex1(m_Buffer, it->second); + for (uint32_t i = 1; i < pCreator->GetLastObjectNumber() + 1; i++) { + if (pCreator->HasObjectNumber(i)) + AppendIndex1(m_Buffer, pCreator->GetObjectOffset(i)); else AppendIndex0(m_Buffer, false); } } else { for (const auto& pair : m_IndexArray) { for (uint32_t j = pair.objnum; j < pair.objnum + pair.count; ++j) - AppendIndex1(m_Buffer, pCreator->m_ObjectOffsets[j]); + AppendIndex1(m_Buffer, pCreator->GetObjectOffset(j)); } } return GenerateXRefStream(pCreator, false); @@ -701,6 +686,17 @@ CPDF_Creator::~CPDF_Creator() { Clear(); } +bool CPDF_Creator::IsXRefNeedEnd() { + if (!IsIncremental()) + return false; + + uint32_t iCount = 0; + for (const auto& pair : m_pXRefStream->m_IndexArray) + iCount += pair.count; + + return iCount >= kXRefStreamMaxSize; +} + int32_t CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj) { if (!m_pXRefStream) return 1; @@ -730,7 +726,7 @@ int32_t CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj) { m_pXRefStream->AddObjectNumberToIndexArray(objnum); if (m_pXRefStream->CompressIndirectObject(objnum, pObj, this) < 0) return -1; - if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags)) + if (!IsXRefNeedEnd()) return 0; if (!m_pXRefStream->End(this)) return -1; @@ -749,7 +745,7 @@ int32_t CPDF_Creator::WriteIndirectObjectToStream(uint32_t objnum, m_pXRefStream->CompressIndirectObject(objnum, pBuffer, dwSize, this); if (iRet < 1) return iRet; - if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags)) + if (!IsXRefNeedEnd()) return 0; if (!m_pXRefStream->End(this)) return -1; @@ -763,7 +759,7 @@ int32_t CPDF_Creator::AppendObjectNumberToXRef(uint32_t objnum) { return 1; m_pXRefStream->AddObjectNumberToIndexArray(objnum); - if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags)) + if (!IsXRefNeedEnd()) return 0; if (!m_pXRefStream->End(this)) return -1; @@ -1105,11 +1101,10 @@ void CPDF_Creator::InitOldObjNumOffsets() { } void CPDF_Creator::InitNewObjNumOffsets() { - bool bIncremental = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0; for (const auto& pair : *m_pDocument) { const uint32_t objnum = pair.first; const CPDF_Object* pObj = pair.second.get(); - if (bIncremental || pObj->GetObjNum() == CPDF_Object::kInvalidObjNum) + if (IsIncremental() || pObj->GetObjNum() == CPDF_Object::kInvalidObjNum) continue; if (m_pParser && m_pParser->IsValidObjectNumber(objnum) && m_pParser->GetObjectType(objnum)) { @@ -1134,7 +1129,7 @@ int32_t CPDF_Creator::WriteDoc_Stage1() { if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) { m_pXRefStream = pdfium::MakeUnique(); m_pXRefStream->Start(); - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser) { + if (IsIncremental() && m_pParser) { FX_FILESIZE prev = m_pParser->GetLastXRefOffset(); m_pXRefStream->m_PrevOffset = prev; } @@ -1142,7 +1137,7 @@ int32_t CPDF_Creator::WriteDoc_Stage1() { m_iStage = 10; } if (m_iStage == 10) { - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0) { + if (!IsIncremental()) { if (m_File.AppendString("%PDF-1.") < 0) return -1; @@ -1217,7 +1212,7 @@ int32_t CPDF_Creator::WriteDoc_Stage1() { int32_t CPDF_Creator::WriteDoc_Stage2() { ASSERT(m_iStage >= 20 || m_iStage < 30); if (m_iStage == 20) { - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 && m_pParser) { + if (!IsIncremental() && m_pParser) { m_CurObjNum = 0; m_iStage = 21; } else { @@ -1236,7 +1231,7 @@ int32_t CPDF_Creator::WriteDoc_Stage2() { m_iStage = 26; } if (m_iStage == 26) { - int32_t iRet = WriteNewObjs((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0); + int32_t iRet = WriteNewObjs(IsIncremental()); if (iRet) return iRet; @@ -1251,7 +1246,7 @@ int32_t CPDF_Creator::WriteDoc_Stage2() { m_ObjectOffsets[m_dwLastObjNum] = saveOffset; m_dwEncryptObjNum = m_dwLastObjNum; - if (m_dwFlags & FPDFCREATE_INCREMENTAL) + if (IsIncremental()) m_NewObjNumArray.push_back(m_dwLastObjNum); } m_iStage = 80; @@ -1268,10 +1263,8 @@ int32_t CPDF_Creator::WriteDoc_Stage3() { m_pXRefStream->End(this, true); m_XrefStart = m_pXRefStream->m_PrevOffset; m_iStage = 90; - } else if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || - !m_pParser->IsXRefStream()) { - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || - m_pParser->GetLastXRefOffset() == 0) { + } else if (!IsIncremental() || !m_pParser->IsXRefStream()) { + if (!IsIncremental() || m_pParser->GetLastXRefOffset() == 0) { CFX_ByteString str; str = pdfium::ContainsKey(m_ObjectOffsets, 1) ? "xref\r\n" @@ -1364,8 +1357,7 @@ int32_t CPDF_Creator::WriteDoc_Stage3() { int32_t CPDF_Creator::WriteDoc_Stage4() { ASSERT(m_iStage >= 90); if ((m_dwFlags & FPDFCREATE_OBJECTSTREAM) == 0) { - bool bXRefStream = - (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser->IsXRefStream(); + bool bXRefStream = IsIncremental() && m_pParser->IsXRefStream(); if (!bXRefStream) { if (m_File.AppendString("trailer\r\n<<") < 0) return -1; @@ -1439,7 +1431,7 @@ int32_t CPDF_Creator::WriteDoc_Stage4() { return -1; if (m_File.AppendDWord(m_dwLastObjNum + (bXRefStream ? 2 : 1)) < 0) return -1; - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0) { + if (IsIncremental()) { FX_FILESIZE prev = m_pParser->GetLastXRefOffset(); if (prev) { if (m_File.AppendString("/Prev ") < 0) @@ -1466,8 +1458,7 @@ int32_t CPDF_Creator::WriteDoc_Stage4() { } else { if (m_File.AppendString("/W[0 4 1]/Index[") < 0) return -1; - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser && - m_pParser->GetLastXRefOffset() == 0) { + if (IsIncremental() && m_pParser && m_pParser->GetLastXRefOffset() == 0) { uint32_t i = 0; for (i = 0; i < m_dwLastObjNum; i++) { if (!pdfium::ContainsKey(m_ObjectOffsets, i)) @@ -1573,7 +1564,7 @@ void CPDF_Creator::InitID(bool bDefault) { if (pOldIDArray) { CPDF_Object* pID2 = pOldIDArray->GetObjectAt(1); - if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) { + if (IsIncremental() && m_pEncryptDict && pID2) { m_pIDArray->Add(pID2->Clone()); return; } @@ -1634,6 +1625,12 @@ bool CPDF_Creator::SetFileVersion(int32_t fileVersion) { return true; } +void CPDF_Creator::IncrementOffset(FX_FILESIZE inc) { + pdfium::base::CheckedNumeric size = m_Offset; + size += inc; + m_Offset = size.ValueOrDie(); +} + void CPDF_Creator::RemoveSecurity() { m_pCryptoHandler.Reset(); m_bSecurityChanged = true; -- cgit v1.2.3