diff options
Diffstat (limited to 'fpdfsdk/src/fpdfppo.cpp')
| -rw-r--r-- | fpdfsdk/src/fpdfppo.cpp | 920 |
1 files changed, 460 insertions, 460 deletions
diff --git a/fpdfsdk/src/fpdfppo.cpp b/fpdfsdk/src/fpdfppo.cpp index e605484cb3..a803454cc0 100644 --- a/fpdfsdk/src/fpdfppo.cpp +++ b/fpdfsdk/src/fpdfppo.cpp @@ -1,460 +1,460 @@ -// 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 "../include/fpdfppo.h"
-#include "../include/fsdk_define.h"
-
-class CPDF_PageOrganizer
-{
-public:
- CPDF_PageOrganizer();
- ~CPDF_PageOrganizer();
-
-public:
- FX_BOOL PDFDocInit(CPDF_Document *pDestPDFDoc, CPDF_Document *pSrcPDFDoc);
- FX_BOOL ExportPage(CPDF_Document *pSrcPDFDoc, CFX_WordArray* nPageNum, CPDF_Document *pDestPDFDoc, int nIndex);
- CPDF_Object* PageDictGetInheritableTag(CPDF_Dictionary *pDict, CFX_ByteString nSrctag);
- FX_BOOL UpdateReference(CPDF_Object *pObj, CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr);
- int GetNewObjId(CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr, 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;
-
-#ifdef FOXIT_CHROME_BUILD
- producerstr.Format("Google");
-#else
- producerstr.Format("Foxit PDF SDK %s - Foxit Corporation", "2.0");
-#endif
- DInfoDict->SetAt("Producer", new CPDF_String(producerstr));
-
- //Set type////////////////////////////////////////////////////////////////
- CFX_ByteString cbRootType = pNewRoot->GetString("Type","");
- if( cbRootType.Equal("") )
- {
- pNewRoot->SetAt("Type", new CPDF_Name("Catalog"));
- }
-
- CPDF_Dictionary* pNewPages = (CPDF_Dictionary*)pNewRoot->GetElement("Pages")->GetDirect();
- if(!pNewPages)
- {
- pNewPages = new CPDF_Dictionary;
- FX_DWORD NewPagesON = pDestPDFDoc->AddIndirectObject(pNewPages);
- pNewRoot->SetAt("Pages", new CPDF_Reference(pDestPDFDoc, NewPagesON));
- }
-
- CFX_ByteString cbPageType = pNewPages->GetString("Type","");
- if(cbPageType.Equal(""))
- {
- pNewPages->SetAt("Type", new CPDF_Name("Pages"));
- }
-
- CPDF_Array* pKeysArray = pNewPages->GetArray("Kids");
- if(pKeysArray == NULL)
- {
- CPDF_Array* pNewKids = new CPDF_Array;
- FX_DWORD Kidsobjnum = -1;
- Kidsobjnum = pDestPDFDoc->AddIndirectObject(pNewKids);//, Kidsobjnum, Kidsgennum);
-
- pNewPages->SetAt("Kids", new CPDF_Reference(pDestPDFDoc, Kidsobjnum));//, Kidsgennum));
- pNewPages->SetAt("Count", new CPDF_Number(0));
- }
-
- return true;
-}
-
-FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document *pSrcPDFDoc, CFX_WordArray* nPageNum,
- CPDF_Document *pDestPDFDoc,int nIndex)
-{
- int curpage =nIndex;
-
- CFX_MapPtrToPtr* pMapPtrToPtr = new CFX_MapPtrToPtr;
- pMapPtrToPtr->InitHashTable(1001);
-
- for(int i=0; i<nPageNum->GetSize(); i++)
- {
-
- CPDF_Dictionary* pCurPageDict = pDestPDFDoc->CreateNewPage(curpage);
- CPDF_Dictionary* pSrcPageDict = pSrcPDFDoc->GetPage(nPageNum->GetAt(i)-1);
- if(!pSrcPageDict || !pCurPageDict)
- {
- delete pMapPtrToPtr;
- return FALSE;
- }
-
- // Clone the page dictionary///////////
- FX_POSITION SrcPos = pSrcPageDict->GetStartPos();
- while (SrcPos)
- {
- CFX_ByteString cbSrcKeyStr;
- CPDF_Object* pObj = pSrcPageDict->GetNextElement(SrcPos, cbSrcKeyStr);
- if(cbSrcKeyStr.Compare(("Type")) && cbSrcKeyStr.Compare(("Parent")))
- {
- if(pCurPageDict->KeyExist(cbSrcKeyStr))
- pCurPageDict->RemoveAt(cbSrcKeyStr);
- pCurPageDict->SetAt(cbSrcKeyStr, pObj->Clone());
- }
- }
-
- //inheritable item///////////////////////
- CPDF_Object* pInheritable = NULL;
- //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)
- {
- delete pMapPtrToPtr;
- 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();
-
- pMapPtrToPtr->SetAt((FX_LPVOID)(FX_UINTPTR)dwOldPageObj, (FX_LPVOID)(FX_UINTPTR)dwNewPageObj);
-
- this->UpdateReference(pCurPageDict, pDestPDFDoc, pMapPtrToPtr);
- curpage++;
- }
-
- delete pMapPtrToPtr;
- return TRUE;
-}
-
-CPDF_Object* CPDF_PageOrganizer::PageDictGetInheritableTag(CPDF_Dictionary *pDict, CFX_ByteString nSrctag)
-{
- if(!pDict || !pDict->KeyExist("Type") || nSrctag.IsEmpty())
- return NULL;
-
- CPDF_Object* pType = pDict->GetElement("Type")->GetDirect();
- if(!pType || pType->GetType() != PDFOBJ_NAME) return NULL;
-
- if(pType->GetString().Compare("Page")) return NULL;
-
- if(!pDict->KeyExist("Parent")) return NULL;
- CPDF_Object* pParent = pDict->GetElement("Parent")->GetDirect();
- if(!pParent || pParent->GetType() != PDFOBJ_DICTIONARY) return NULL;
-
- CPDF_Dictionary* pp = (CPDF_Dictionary*)pParent;
-
- 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);
- else if(pp->KeyExist("Parent"))
- pp = (CPDF_Dictionary*)pp->GetElement("Parent")->GetDirect();
- else break;
- }
-
- return NULL;
-}
-
-FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object *pObj, CPDF_Document *pDoc,
- CFX_MapPtrToPtr* pMapPtrToPtr)
-{
- switch (pObj->GetType())
- {
- case PDFOBJ_REFERENCE:
- {
- CPDF_Reference* pReference = (CPDF_Reference*)pObj;
- int newobjnum = GetNewObjId(pDoc, pMapPtrToPtr, pReference);
- if (newobjnum == 0) return FALSE;
- pReference->SetRef(pDoc, newobjnum);//, 0);
- break;
- }
- case PDFOBJ_DICTIONARY:
- {
- CPDF_Dictionary* pDict = (CPDF_Dictionary*)pObj;
-
- FX_POSITION pos = pDict->GetStartPos();
- while(pos)
- {
- CFX_ByteString key("");
- CPDF_Object* pNextObj = pDict->GetNextElement(pos, key);
- if (!FXSYS_strcmp(key, "Parent") || !FXSYS_strcmp(key, "Prev") || !FXSYS_strcmp(key, "First"))
- continue;
- if(pNextObj)
- {
- if(!UpdateReference(pNextObj, pDoc, pMapPtrToPtr))
- pDict->RemoveAt(key);
- }
- else
- return FALSE;
- }
- break;
- }
- case PDFOBJ_ARRAY:
- {
- CPDF_Array* pArray = (CPDF_Array*)pObj;
- FX_DWORD count = pArray->GetCount();
- for(FX_DWORD i = 0; i < count; i ++)
- {
- CPDF_Object* pNextObj = pArray->GetElement(i);
- if(pNextObj)
- {
- if(!UpdateReference(pNextObj, pDoc, pMapPtrToPtr))
- return FALSE;
- }
- else
- return FALSE;
- }
- break;
- }
- case PDFOBJ_STREAM:
- {
- CPDF_Stream* pStream = (CPDF_Stream*)pObj;
- CPDF_Dictionary* pDict = pStream->GetDict();
- if(pDict)
- {
- if(!UpdateReference(pDict, pDoc, pMapPtrToPtr))
- return FALSE;
- }
- else
- return FALSE;
- break;
- }
- default: break;
- }
-
- return TRUE;
-}
-
-int CPDF_PageOrganizer::GetNewObjId(CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr,
- CPDF_Reference *pRef)
-{
- size_t dwObjnum = 0;
- if(!pRef)
- return 0;
- dwObjnum = pRef->GetRefObjNum();
-
- size_t dwNewObjNum = 0;
-
- pMapPtrToPtr->Lookup((FX_LPVOID)dwObjnum, (FX_LPVOID&)dwNewObjNum);
- if(dwNewObjNum)
- {
- return (int)dwNewObjNum;
- }
- else
- {
- CPDF_Object* pClone = pRef->GetDirect()->Clone();
- if(!pClone) return 0;
-
- if(pClone->GetType() == PDFOBJ_DICTIONARY)
- {
- CPDF_Dictionary* pDictClone = (CPDF_Dictionary*)pClone;
- if(pDictClone->KeyExist("Type"))
- {
- CFX_ByteString strType = pDictClone->GetString("Type");
- if(!FXSYS_stricmp(strType, "Pages"))
- {
- pDictClone->Release();
- return 4;
- }
- else if(!FXSYS_stricmp(strType, "Page"))
- {
- pDictClone->Release();
- return 0;
- }
- }
- }
- dwNewObjNum = pDoc->AddIndirectObject(pClone);//, onum, gnum);
- pMapPtrToPtr->SetAt((FX_LPVOID)dwObjnum, (FX_LPVOID)dwNewObjNum);
-
- if(!UpdateReference(pClone, pDoc, pMapPtrToPtr))
- {
- pClone->Release();
- return 0;
- }
- return (int)dwNewObjNum;
- }
- return 0;
-}
-
-FPDF_BOOL ParserPageRangeString(CFX_ByteString rangstring, CFX_WordArray* 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->Add((FX_WORD)lPageNum);
- }
- else
- {
- int nStartPageNum = atol(cbMidRange.Mid(0,nMid));
- if (nStartPageNum ==0)
- {
- return FALSE;
- }
-
-
- nMid = nMid+1;
- int nEnd = cbMidRange.GetLength()-nMid;
-
- if(nEnd ==0)return FALSE;
-
- // int nEndPageNum = (nEnd == 0)?nCount:atol(cbMidRange.Mid(nMid,nEnd));
- int nEndPageNum = atol(cbMidRange.Mid(nMid,nEnd));
-
- if(nStartPageNum < 0 ||nStartPageNum >nEndPageNum|| nEndPageNum > nCount)
- {
- return FALSE;
- }
- else
- {
- for(int nIndex=nStartPageNum; nIndex <= nEndPageNum; nIndex ++)
- pageArray->Add(nIndex);
- }
- }
- nStringFrom = nStringTo +1;
- }
- }
- return TRUE;
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDF_ImportPages(FPDF_DOCUMENT dest_doc,FPDF_DOCUMENT src_doc,
- FPDF_BYTESTRING pagerange, int index)
-{
- if(dest_doc == NULL || src_doc == NULL )
- return FALSE;
- CFX_WordArray pageArray;
- CPDF_Document* pSrcDoc = (CPDF_Document*)src_doc;
- int nCount = pSrcDoc->GetPageCount();
- if(pagerange)
- {
- if(ParserPageRangeString(pagerange,&pageArray,nCount) == FALSE)
- return FALSE;
- }
- else
- {
- for(int i=1; i<=nCount; i++)
- {
- pageArray.Add(i);
- }
- }
-
- CPDF_Document* pDestDoc = (CPDF_Document*)dest_doc;
- CPDF_PageOrganizer pageOrg;
-
- pageOrg.PDFDocInit(pDestDoc,pSrcDoc);
-
- if(pageOrg.ExportPage(pSrcDoc,&pageArray,pDestDoc,index))
- return TRUE;
- return FALSE;
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc, FPDF_DOCUMENT src_doc)
-{
- if(src_doc == NULL || dest_doc == NULL)
- return false;
- CPDF_Document* pSrcDoc = (CPDF_Document*)src_doc;
- CPDF_Dictionary* pSrcDict = pSrcDoc->GetRoot();
- pSrcDict = pSrcDict->GetDict(FX_BSTRC("ViewerPreferences"));;
- if(!pSrcDict)
- return FALSE;
- CPDF_Document* pDstDoc = (CPDF_Document*)dest_doc;
- CPDF_Dictionary* pDstDict = pDstDoc->GetRoot();
- if(!pDstDict)
- return FALSE;
- pDstDict->SetAt(FX_BSTRC("ViewerPreferences"), pSrcDict->Clone(TRUE));
- return TRUE;
-}
-
+// 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 "../include/fpdfppo.h" +#include "../include/fsdk_define.h" + +class CPDF_PageOrganizer +{ +public: + CPDF_PageOrganizer(); + ~CPDF_PageOrganizer(); + +public: + FX_BOOL PDFDocInit(CPDF_Document *pDestPDFDoc, CPDF_Document *pSrcPDFDoc); + FX_BOOL ExportPage(CPDF_Document *pSrcPDFDoc, CFX_WordArray* nPageNum, CPDF_Document *pDestPDFDoc, int nIndex); + CPDF_Object* PageDictGetInheritableTag(CPDF_Dictionary *pDict, CFX_ByteString nSrctag); + FX_BOOL UpdateReference(CPDF_Object *pObj, CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr); + int GetNewObjId(CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr, 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; + +#ifdef FOXIT_CHROME_BUILD + producerstr.Format("Google"); +#else + producerstr.Format("Foxit PDF SDK %s - Foxit Corporation", "2.0"); +#endif + DInfoDict->SetAt("Producer", new CPDF_String(producerstr)); + + //Set type//////////////////////////////////////////////////////////////// + CFX_ByteString cbRootType = pNewRoot->GetString("Type",""); + if( cbRootType.Equal("") ) + { + pNewRoot->SetAt("Type", new CPDF_Name("Catalog")); + } + + CPDF_Dictionary* pNewPages = (CPDF_Dictionary*)pNewRoot->GetElement("Pages")->GetDirect(); + if(!pNewPages) + { + pNewPages = new CPDF_Dictionary; + FX_DWORD NewPagesON = pDestPDFDoc->AddIndirectObject(pNewPages); + pNewRoot->SetAt("Pages", new CPDF_Reference(pDestPDFDoc, NewPagesON)); + } + + CFX_ByteString cbPageType = pNewPages->GetString("Type",""); + if(cbPageType.Equal("")) + { + pNewPages->SetAt("Type", new CPDF_Name("Pages")); + } + + CPDF_Array* pKeysArray = pNewPages->GetArray("Kids"); + if(pKeysArray == NULL) + { + CPDF_Array* pNewKids = new CPDF_Array; + FX_DWORD Kidsobjnum = -1; + Kidsobjnum = pDestPDFDoc->AddIndirectObject(pNewKids);//, Kidsobjnum, Kidsgennum); + + pNewPages->SetAt("Kids", new CPDF_Reference(pDestPDFDoc, Kidsobjnum));//, Kidsgennum)); + pNewPages->SetAt("Count", new CPDF_Number(0)); + } + + return true; +} + +FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document *pSrcPDFDoc, CFX_WordArray* nPageNum, + CPDF_Document *pDestPDFDoc,int nIndex) +{ + int curpage =nIndex; + + CFX_MapPtrToPtr* pMapPtrToPtr = new CFX_MapPtrToPtr; + pMapPtrToPtr->InitHashTable(1001); + + for(int i=0; i<nPageNum->GetSize(); i++) + { + + CPDF_Dictionary* pCurPageDict = pDestPDFDoc->CreateNewPage(curpage); + CPDF_Dictionary* pSrcPageDict = pSrcPDFDoc->GetPage(nPageNum->GetAt(i)-1); + if(!pSrcPageDict || !pCurPageDict) + { + delete pMapPtrToPtr; + return FALSE; + } + + // Clone the page dictionary/////////// + FX_POSITION SrcPos = pSrcPageDict->GetStartPos(); + while (SrcPos) + { + CFX_ByteString cbSrcKeyStr; + CPDF_Object* pObj = pSrcPageDict->GetNextElement(SrcPos, cbSrcKeyStr); + if(cbSrcKeyStr.Compare(("Type")) && cbSrcKeyStr.Compare(("Parent"))) + { + if(pCurPageDict->KeyExist(cbSrcKeyStr)) + pCurPageDict->RemoveAt(cbSrcKeyStr); + pCurPageDict->SetAt(cbSrcKeyStr, pObj->Clone()); + } + } + + //inheritable item/////////////////////// + CPDF_Object* pInheritable = NULL; + //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) + { + delete pMapPtrToPtr; + 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(); + + pMapPtrToPtr->SetAt((FX_LPVOID)(FX_UINTPTR)dwOldPageObj, (FX_LPVOID)(FX_UINTPTR)dwNewPageObj); + + this->UpdateReference(pCurPageDict, pDestPDFDoc, pMapPtrToPtr); + curpage++; + } + + delete pMapPtrToPtr; + return TRUE; +} + +CPDF_Object* CPDF_PageOrganizer::PageDictGetInheritableTag(CPDF_Dictionary *pDict, CFX_ByteString nSrctag) +{ + if(!pDict || !pDict->KeyExist("Type") || nSrctag.IsEmpty()) + return NULL; + + CPDF_Object* pType = pDict->GetElement("Type")->GetDirect(); + if(!pType || pType->GetType() != PDFOBJ_NAME) return NULL; + + if(pType->GetString().Compare("Page")) return NULL; + + if(!pDict->KeyExist("Parent")) return NULL; + CPDF_Object* pParent = pDict->GetElement("Parent")->GetDirect(); + if(!pParent || pParent->GetType() != PDFOBJ_DICTIONARY) return NULL; + + CPDF_Dictionary* pp = (CPDF_Dictionary*)pParent; + + 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); + else if(pp->KeyExist("Parent")) + pp = (CPDF_Dictionary*)pp->GetElement("Parent")->GetDirect(); + else break; + } + + return NULL; +} + +FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object *pObj, CPDF_Document *pDoc, + CFX_MapPtrToPtr* pMapPtrToPtr) +{ + switch (pObj->GetType()) + { + case PDFOBJ_REFERENCE: + { + CPDF_Reference* pReference = (CPDF_Reference*)pObj; + int newobjnum = GetNewObjId(pDoc, pMapPtrToPtr, pReference); + if (newobjnum == 0) return FALSE; + pReference->SetRef(pDoc, newobjnum);//, 0); + break; + } + case PDFOBJ_DICTIONARY: + { + CPDF_Dictionary* pDict = (CPDF_Dictionary*)pObj; + + FX_POSITION pos = pDict->GetStartPos(); + while(pos) + { + CFX_ByteString key(""); + CPDF_Object* pNextObj = pDict->GetNextElement(pos, key); + if (!FXSYS_strcmp(key, "Parent") || !FXSYS_strcmp(key, "Prev") || !FXSYS_strcmp(key, "First")) + continue; + if(pNextObj) + { + if(!UpdateReference(pNextObj, pDoc, pMapPtrToPtr)) + pDict->RemoveAt(key); + } + else + return FALSE; + } + break; + } + case PDFOBJ_ARRAY: + { + CPDF_Array* pArray = (CPDF_Array*)pObj; + FX_DWORD count = pArray->GetCount(); + for(FX_DWORD i = 0; i < count; i ++) + { + CPDF_Object* pNextObj = pArray->GetElement(i); + if(pNextObj) + { + if(!UpdateReference(pNextObj, pDoc, pMapPtrToPtr)) + return FALSE; + } + else + return FALSE; + } + break; + } + case PDFOBJ_STREAM: + { + CPDF_Stream* pStream = (CPDF_Stream*)pObj; + CPDF_Dictionary* pDict = pStream->GetDict(); + if(pDict) + { + if(!UpdateReference(pDict, pDoc, pMapPtrToPtr)) + return FALSE; + } + else + return FALSE; + break; + } + default: break; + } + + return TRUE; +} + +int CPDF_PageOrganizer::GetNewObjId(CPDF_Document *pDoc, CFX_MapPtrToPtr* pMapPtrToPtr, + CPDF_Reference *pRef) +{ + size_t dwObjnum = 0; + if(!pRef) + return 0; + dwObjnum = pRef->GetRefObjNum(); + + size_t dwNewObjNum = 0; + + pMapPtrToPtr->Lookup((FX_LPVOID)dwObjnum, (FX_LPVOID&)dwNewObjNum); + if(dwNewObjNum) + { + return (int)dwNewObjNum; + } + else + { + CPDF_Object* pClone = pRef->GetDirect()->Clone(); + if(!pClone) return 0; + + if(pClone->GetType() == PDFOBJ_DICTIONARY) + { + CPDF_Dictionary* pDictClone = (CPDF_Dictionary*)pClone; + if(pDictClone->KeyExist("Type")) + { + CFX_ByteString strType = pDictClone->GetString("Type"); + if(!FXSYS_stricmp(strType, "Pages")) + { + pDictClone->Release(); + return 4; + } + else if(!FXSYS_stricmp(strType, "Page")) + { + pDictClone->Release(); + return 0; + } + } + } + dwNewObjNum = pDoc->AddIndirectObject(pClone);//, onum, gnum); + pMapPtrToPtr->SetAt((FX_LPVOID)dwObjnum, (FX_LPVOID)dwNewObjNum); + + if(!UpdateReference(pClone, pDoc, pMapPtrToPtr)) + { + pClone->Release(); + return 0; + } + return (int)dwNewObjNum; + } + return 0; +} + +FPDF_BOOL ParserPageRangeString(CFX_ByteString rangstring, CFX_WordArray* 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->Add((FX_WORD)lPageNum); + } + else + { + int nStartPageNum = atol(cbMidRange.Mid(0,nMid)); + if (nStartPageNum ==0) + { + return FALSE; + } + + + nMid = nMid+1; + int nEnd = cbMidRange.GetLength()-nMid; + + if(nEnd ==0)return FALSE; + + // int nEndPageNum = (nEnd == 0)?nCount:atol(cbMidRange.Mid(nMid,nEnd)); + int nEndPageNum = atol(cbMidRange.Mid(nMid,nEnd)); + + if(nStartPageNum < 0 ||nStartPageNum >nEndPageNum|| nEndPageNum > nCount) + { + return FALSE; + } + else + { + for(int nIndex=nStartPageNum; nIndex <= nEndPageNum; nIndex ++) + pageArray->Add(nIndex); + } + } + nStringFrom = nStringTo +1; + } + } + return TRUE; +} + +DLLEXPORT FPDF_BOOL STDCALL FPDF_ImportPages(FPDF_DOCUMENT dest_doc,FPDF_DOCUMENT src_doc, + FPDF_BYTESTRING pagerange, int index) +{ + if(dest_doc == NULL || src_doc == NULL ) + return FALSE; + CFX_WordArray pageArray; + CPDF_Document* pSrcDoc = (CPDF_Document*)src_doc; + int nCount = pSrcDoc->GetPageCount(); + if(pagerange) + { + if(ParserPageRangeString(pagerange,&pageArray,nCount) == FALSE) + return FALSE; + } + else + { + for(int i=1; i<=nCount; i++) + { + pageArray.Add(i); + } + } + + CPDF_Document* pDestDoc = (CPDF_Document*)dest_doc; + CPDF_PageOrganizer pageOrg; + + pageOrg.PDFDocInit(pDestDoc,pSrcDoc); + + if(pageOrg.ExportPage(pSrcDoc,&pageArray,pDestDoc,index)) + return TRUE; + return FALSE; +} + +DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc, FPDF_DOCUMENT src_doc) +{ + if(src_doc == NULL || dest_doc == NULL) + return false; + CPDF_Document* pSrcDoc = (CPDF_Document*)src_doc; + CPDF_Dictionary* pSrcDict = pSrcDoc->GetRoot(); + pSrcDict = pSrcDict->GetDict(FX_BSTRC("ViewerPreferences"));; + if(!pSrcDict) + return FALSE; + CPDF_Document* pDstDoc = (CPDF_Document*)dest_doc; + CPDF_Dictionary* pDstDict = pDstDoc->GetRoot(); + if(!pDstDict) + return FALSE; + pDstDict->SetAt(FX_BSTRC("ViewerPreferences"), pSrcDict->Clone(TRUE)); + return TRUE; +} + |