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Diffstat (limited to 'fpdfsdk/src/fpdfppo.cpp')
| -rw-r--r-- | fpdfsdk/src/fpdfppo.cpp | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/fpdfsdk/src/fpdfppo.cpp b/fpdfsdk/src/fpdfppo.cpp deleted file mode 100644 index 4253cc5fd9..0000000000 --- a/fpdfsdk/src/fpdfppo.cpp +++ /dev/null @@ -1,415 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "public/fpdf_ppo.h" - -#include <map> -#include <memory> -#include <vector> - -#include "core/include/fpdfapi/cpdf_array.h" -#include "core/include/fpdfapi/cpdf_document.h" -#include "core/include/fpdfapi/cpdf_name.h" -#include "core/include/fpdfapi/cpdf_number.h" -#include "core/include/fpdfapi/cpdf_reference.h" -#include "core/include/fpdfapi/cpdf_string.h" -#include "fpdfsdk/include/fsdk_define.h" -#include "third_party/base/stl_util.h" - -class CPDF_PageOrganizer { - public: - using ObjectNumberMap = std::map<FX_DWORD, FX_DWORD>; - CPDF_PageOrganizer(); - ~CPDF_PageOrganizer(); - - FX_BOOL PDFDocInit(CPDF_Document* pDestPDFDoc, CPDF_Document* pSrcPDFDoc); - FX_BOOL ExportPage(CPDF_Document* pSrcPDFDoc, - std::vector<FX_WORD>* pPageNums, - CPDF_Document* pDestPDFDoc, - int nIndex); - CPDF_Object* PageDictGetInheritableTag(CPDF_Dictionary* pDict, - CFX_ByteString nSrctag); - FX_BOOL UpdateReference(CPDF_Object* pObj, - CPDF_Document* pDoc, - ObjectNumberMap* pObjNumberMap); - FX_DWORD GetNewObjId(CPDF_Document* pDoc, - ObjectNumberMap* pObjNumberMap, - CPDF_Reference* pRef); -}; - -CPDF_PageOrganizer::CPDF_PageOrganizer() {} - -CPDF_PageOrganizer::~CPDF_PageOrganizer() {} - -FX_BOOL CPDF_PageOrganizer::PDFDocInit(CPDF_Document* pDestPDFDoc, - CPDF_Document* pSrcPDFDoc) { - if (!pDestPDFDoc || !pSrcPDFDoc) - return FALSE; - - CPDF_Dictionary* pNewRoot = pDestPDFDoc->GetRoot(); - if (!pNewRoot) - return FALSE; - - // Set the document information - CPDF_Dictionary* DInfoDict = pDestPDFDoc->GetInfo(); - if (!DInfoDict) - return FALSE; - - CFX_ByteString producerstr; - producerstr.Format("PDFium"); - DInfoDict->SetAt("Producer", new CPDF_String(producerstr, FALSE)); - - // Set type - CFX_ByteString cbRootType = pNewRoot->GetStringBy("Type", ""); - if (cbRootType.Equal("")) { - pNewRoot->SetAt("Type", new CPDF_Name("Catalog")); - } - - CPDF_Object* pElement = pNewRoot->GetElement("Pages"); - CPDF_Dictionary* pNewPages = - pElement ? ToDictionary(pElement->GetDirect()) : nullptr; - if (!pNewPages) { - pNewPages = new CPDF_Dictionary; - FX_DWORD NewPagesON = pDestPDFDoc->AddIndirectObject(pNewPages); - pNewRoot->SetAt("Pages", new CPDF_Reference(pDestPDFDoc, NewPagesON)); - } - - CFX_ByteString cbPageType = pNewPages->GetStringBy("Type", ""); - if (cbPageType.Equal("")) { - pNewPages->SetAt("Type", new CPDF_Name("Pages")); - } - - CPDF_Array* pKeysArray = pNewPages->GetArrayBy("Kids"); - if (!pKeysArray) { - CPDF_Array* pNewKids = new CPDF_Array; - FX_DWORD Kidsobjnum = -1; - Kidsobjnum = pDestPDFDoc->AddIndirectObject(pNewKids); - - pNewPages->SetAt("Kids", new CPDF_Reference(pDestPDFDoc, Kidsobjnum)); - pNewPages->SetAt("Count", new CPDF_Number(0)); - } - - return TRUE; -} - -FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document* pSrcPDFDoc, - std::vector<FX_WORD>* pPageNums, - CPDF_Document* pDestPDFDoc, - int nIndex) { - int curpage = nIndex; - std::unique_ptr<ObjectNumberMap> pObjNumberMap(new ObjectNumberMap); - int nSize = pdfium::CollectionSize<int>(*pPageNums); - for (int i = 0; i < nSize; ++i) { - CPDF_Dictionary* pCurPageDict = pDestPDFDoc->CreateNewPage(curpage); - CPDF_Dictionary* pSrcPageDict = pSrcPDFDoc->GetPage(pPageNums->at(i) - 1); - if (!pSrcPageDict || !pCurPageDict) - return FALSE; - - // Clone the page dictionary - for (const auto& it : *pSrcPageDict) { - const CFX_ByteString& cbSrcKeyStr = it.first; - CPDF_Object* pObj = it.second; - if (cbSrcKeyStr.Compare(("Type")) && cbSrcKeyStr.Compare(("Parent"))) { - if (pCurPageDict->KeyExist(cbSrcKeyStr)) - pCurPageDict->RemoveAt(cbSrcKeyStr); - pCurPageDict->SetAt(cbSrcKeyStr, pObj->Clone()); - } - } - - // inheritable item - CPDF_Object* pInheritable = nullptr; - // 1 MediaBox //required - if (!pCurPageDict->KeyExist("MediaBox")) { - pInheritable = PageDictGetInheritableTag(pSrcPageDict, "MediaBox"); - if (!pInheritable) { - // Search the "CropBox" from source page dictionary, - // if not exists,we take the letter size. - pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox"); - if (pInheritable) { - pCurPageDict->SetAt("MediaBox", pInheritable->Clone()); - } else { - // Make the default size to be letter size (8.5'x11') - CPDF_Array* pArray = new CPDF_Array; - pArray->AddNumber(0); - pArray->AddNumber(0); - pArray->AddNumber(612); - pArray->AddNumber(792); - pCurPageDict->SetAt("MediaBox", pArray); - } - } else { - pCurPageDict->SetAt("MediaBox", pInheritable->Clone()); - } - } - // 2 Resources //required - if (!pCurPageDict->KeyExist("Resources")) { - pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Resources"); - if (!pInheritable) - return FALSE; - pCurPageDict->SetAt("Resources", pInheritable->Clone()); - } - // 3 CropBox //Optional - if (!pCurPageDict->KeyExist("CropBox")) { - pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox"); - if (pInheritable) - pCurPageDict->SetAt("CropBox", pInheritable->Clone()); - } - // 4 Rotate //Optional - if (!pCurPageDict->KeyExist("Rotate")) { - pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Rotate"); - if (pInheritable) - pCurPageDict->SetAt("Rotate", pInheritable->Clone()); - } - - // Update the reference - FX_DWORD dwOldPageObj = pSrcPageDict->GetObjNum(); - FX_DWORD dwNewPageObj = pCurPageDict->GetObjNum(); - - (*pObjNumberMap)[dwOldPageObj] = dwNewPageObj; - - UpdateReference(pCurPageDict, pDestPDFDoc, pObjNumberMap.get()); - ++curpage; - } - - return TRUE; -} - -CPDF_Object* CPDF_PageOrganizer::PageDictGetInheritableTag( - CPDF_Dictionary* pDict, - CFX_ByteString nSrctag) { - if (!pDict || nSrctag.IsEmpty()) - return nullptr; - if (!pDict->KeyExist("Parent") || !pDict->KeyExist("Type")) - return nullptr; - - CPDF_Object* pType = pDict->GetElement("Type")->GetDirect(); - if (!ToName(pType)) - return nullptr; - if (pType->GetString().Compare("Page")) - return nullptr; - - CPDF_Dictionary* pp = ToDictionary(pDict->GetElement("Parent")->GetDirect()); - if (!pp) - return nullptr; - - if (pDict->KeyExist((const char*)nSrctag)) - return pDict->GetElement((const char*)nSrctag); - - while (pp) { - if (pp->KeyExist((const char*)nSrctag)) - return pp->GetElement((const char*)nSrctag); - if (!pp->KeyExist("Parent")) - break; - pp = ToDictionary(pp->GetElement("Parent")->GetDirect()); - } - return nullptr; -} - -FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object* pObj, - CPDF_Document* pDoc, - ObjectNumberMap* pObjNumberMap) { - switch (pObj->GetType()) { - case CPDF_Object::REFERENCE: { - CPDF_Reference* pReference = pObj->AsReference(); - FX_DWORD newobjnum = GetNewObjId(pDoc, pObjNumberMap, pReference); - if (newobjnum == 0) - return FALSE; - pReference->SetRef(pDoc, newobjnum); - break; - } - case CPDF_Object::DICTIONARY: { - CPDF_Dictionary* pDict = pObj->AsDictionary(); - auto it = pDict->begin(); - while (it != pDict->end()) { - const CFX_ByteString& key = it->first; - CPDF_Object* pNextObj = it->second; - ++it; - if (!FXSYS_strcmp(key, "Parent") || !FXSYS_strcmp(key, "Prev") || - !FXSYS_strcmp(key, "First")) { - continue; - } - if (pNextObj) { - if (!UpdateReference(pNextObj, pDoc, pObjNumberMap)) - pDict->RemoveAt(key); - } else { - return FALSE; - } - } - break; - } - case CPDF_Object::ARRAY: { - CPDF_Array* pArray = pObj->AsArray(); - FX_DWORD count = pArray->GetCount(); - for (FX_DWORD i = 0; i < count; ++i) { - CPDF_Object* pNextObj = pArray->GetElement(i); - if (!pNextObj) - return FALSE; - if (!UpdateReference(pNextObj, pDoc, pObjNumberMap)) - return FALSE; - } - break; - } - case CPDF_Object::STREAM: { - CPDF_Stream* pStream = pObj->AsStream(); - CPDF_Dictionary* pDict = pStream->GetDict(); - if (pDict) { - if (!UpdateReference(pDict, pDoc, pObjNumberMap)) - return FALSE; - } else { - return FALSE; - } - break; - } - default: - break; - } - - return TRUE; -} - -FX_DWORD CPDF_PageOrganizer::GetNewObjId(CPDF_Document* pDoc, - ObjectNumberMap* pObjNumberMap, - CPDF_Reference* pRef) { - if (!pRef) - return 0; - - FX_DWORD dwObjnum = pRef->GetRefObjNum(); - FX_DWORD dwNewObjNum = 0; - const auto it = pObjNumberMap->find(dwObjnum); - if (it != pObjNumberMap->end()) - dwNewObjNum = it->second; - if (dwNewObjNum) - return dwNewObjNum; - - CPDF_Object* pDirect = pRef->GetDirect(); - if (!pDirect) - return 0; - - CPDF_Object* pClone = pDirect->Clone(); - if (!pClone) - return 0; - - if (CPDF_Dictionary* pDictClone = pClone->AsDictionary()) { - if (pDictClone->KeyExist("Type")) { - CFX_ByteString strType = pDictClone->GetStringBy("Type"); - if (!FXSYS_stricmp(strType, "Pages")) { - pDictClone->Release(); - return 4; - } - if (!FXSYS_stricmp(strType, "Page")) { - pDictClone->Release(); - return 0; - } - } - } - dwNewObjNum = pDoc->AddIndirectObject(pClone); - (*pObjNumberMap)[dwObjnum] = dwNewObjNum; - if (!UpdateReference(pClone, pDoc, pObjNumberMap)) { - pClone->Release(); - return 0; - } - return dwNewObjNum; -} - -FPDF_BOOL ParserPageRangeString(CFX_ByteString rangstring, - std::vector<FX_WORD>* pageArray, - int nCount) { - if (rangstring.GetLength() != 0) { - rangstring.Remove(' '); - int nLength = rangstring.GetLength(); - CFX_ByteString cbCompareString("0123456789-,"); - for (int i = 0; i < nLength; ++i) { - if (cbCompareString.Find(rangstring[i]) == -1) - return FALSE; - } - CFX_ByteString cbMidRange; - int nStringFrom = 0; - int nStringTo = 0; - while (nStringTo < nLength) { - nStringTo = rangstring.Find(',', nStringFrom); - if (nStringTo == -1) - nStringTo = nLength; - cbMidRange = rangstring.Mid(nStringFrom, nStringTo - nStringFrom); - int nMid = cbMidRange.Find('-'); - if (nMid == -1) { - long lPageNum = atol(cbMidRange); - if (lPageNum <= 0 || lPageNum > nCount) - return FALSE; - pageArray->push_back((FX_WORD)lPageNum); - } else { - int nStartPageNum = atol(cbMidRange.Mid(0, nMid)); - if (nStartPageNum == 0) - return FALSE; - - ++nMid; - int nEnd = cbMidRange.GetLength() - nMid; - if (nEnd == 0) - return FALSE; - - int nEndPageNum = atol(cbMidRange.Mid(nMid, nEnd)); - if (nStartPageNum < 0 || nStartPageNum > nEndPageNum || - nEndPageNum > nCount) { - return FALSE; - } - for (int i = nStartPageNum; i <= nEndPageNum; ++i) { - pageArray->push_back(i); - } - } - nStringFrom = nStringTo + 1; - } - } - return TRUE; -} - -DLLEXPORT FPDF_BOOL STDCALL FPDF_ImportPages(FPDF_DOCUMENT dest_doc, - FPDF_DOCUMENT src_doc, - FPDF_BYTESTRING pagerange, - int index) { - CPDF_Document* pDestDoc = CPDFDocumentFromFPDFDocument(dest_doc); - if (!dest_doc) - return FALSE; - - CPDF_Document* pSrcDoc = CPDFDocumentFromFPDFDocument(src_doc); - if (!pSrcDoc) - return FALSE; - - std::vector<FX_WORD> pageArray; - int nCount = pSrcDoc->GetPageCount(); - if (pagerange) { - if (!ParserPageRangeString(pagerange, &pageArray, nCount)) - return FALSE; - } else { - for (int i = 1; i <= nCount; ++i) { - pageArray.push_back(i); - } - } - - CPDF_PageOrganizer pageOrg; - pageOrg.PDFDocInit(pDestDoc, pSrcDoc); - return pageOrg.ExportPage(pSrcDoc, &pageArray, pDestDoc, index); -} - -DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc, - FPDF_DOCUMENT src_doc) { - CPDF_Document* pDstDoc = CPDFDocumentFromFPDFDocument(dest_doc); - if (!pDstDoc) - return FALSE; - - CPDF_Document* pSrcDoc = CPDFDocumentFromFPDFDocument(src_doc); - if (!pSrcDoc) - return FALSE; - - CPDF_Dictionary* pSrcDict = pSrcDoc->GetRoot(); - pSrcDict = pSrcDict->GetDictBy("ViewerPreferences"); - if (!pSrcDict) - return FALSE; - - CPDF_Dictionary* pDstDict = pDstDoc->GetRoot(); - if (!pDstDict) - return FALSE; - - pDstDict->SetAt("ViewerPreferences", pSrcDict->Clone(TRUE)); - return TRUE; -} |