C++ CPDF_Object::IsReference方法代码示例

FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPage_TransFormWithClip(FPDF_PAGE page,
                           const FS_MATRIX* matrix,
                           const FS_RECTF* clipRect) {
  if (!matrix && !clipRect)
    return false;

  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return false;

  std::ostringstream textBuf;
  textBuf << "q ";

  if (clipRect) {
    CFX_FloatRect rect = CFXFloatRectFromFSRECTF(*clipRect);
    rect.Normalize();

    textBuf << ByteString::Format("%f %f %f %f re W* n ", rect.left,
                                  rect.bottom, rect.Width(), rect.Height());
  }
  if (matrix) {
    textBuf << ByteString::Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b,
                                  matrix->c, matrix->d, matrix->e, matrix->f);
  }

  CPDF_Dictionary* pPageDict = pPage->GetDict();
  CPDF_Object* pContentObj = GetPageContent(pPageDict);
  if (!pContentObj)
    return false;

  CPDF_Document* pDoc = pPage->GetDocument();
  if (!pDoc)
    return false;

  CPDF_Stream* pStream =
      pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
  pStream->SetDataFromStringstream(&textBuf);

  CPDF_Stream* pEndStream =
      pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
  pEndStream->SetData(ByteStringView(" Q").span());

  if (CPDF_Array* pContentArray = ToArray(pContentObj)) {
    pContentArray->InsertAt(0, pStream->MakeReference(pDoc));
    pContentArray->Add(pEndStream->MakeReference(pDoc));
  } else if (pContentObj->IsStream() && !pContentObj->IsInline()) {
    pContentArray = pDoc->NewIndirect<CPDF_Array>();
    pContentArray->Add(pStream->MakeReference(pDoc));
    pContentArray->Add(pContentObj->MakeReference(pDoc));
    pContentArray->Add(pEndStream->MakeReference(pDoc));
    pPageDict->SetFor(pdfium::page_object::kContents,
                      pContentArray->MakeReference(pDoc));
  }

  // Need to transform the patterns as well.
  CPDF_Dictionary* pRes =
      pPageDict->GetDictFor(pdfium::page_object::kResources);
  if (!pRes)
    return true;

  CPDF_Dictionary* pPatternDict = pRes->GetDictFor("Pattern");
  if (!pPatternDict)
    return true;

  CPDF_DictionaryLocker locker(pPatternDict);
  for (const auto& it : locker) {
    CPDF_Object* pObj = it.second.get();
    if (pObj->IsReference())
      pObj = pObj->GetDirect();

    CPDF_Dictionary* pDict = nullptr;
    if (pObj->IsDictionary())
      pDict = pObj->AsDictionary();
    else if (CPDF_Stream* pObjStream = pObj->AsStream())
      pDict = pObjStream->GetDict();
    else
      continue;

    if (matrix) {
      CFX_Matrix m = CFXMatrixFromFSMatrix(*matrix);
      pDict->SetMatrixFor("Matrix", pDict->GetMatrixFor("Matrix") * m);
    }
  }

  return true;
}

DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
                                                       FS_MATRIX* matrix,
                                                       FS_RECTF* clipRect) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return FALSE;

  CFX_ByteTextBuf textBuf;
  textBuf << "q ";
  CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right,
                     clipRect->top);
  rect.Normalize();
  CFX_ByteString bsClipping;
  bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom,
                    rect.Width(), rect.Height());
  textBuf << bsClipping;

  CFX_ByteString bsMatix;
  bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b, matrix->c,
                 matrix->d, matrix->e, matrix->f);
  textBuf << bsMatix;

  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
  CPDF_Object* pContentObj =
      pPageDic ? pPageDic->GetElement("Contents") : nullptr;
  if (!pContentObj)
    pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
  if (!pContentObj)
    return FALSE;

  CPDF_Dictionary* pDic = new CPDF_Dictionary;
  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
  pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
  CPDF_Document* pDoc = pPage->m_pDocument;
  if (!pDoc)
    return FALSE;
  pDoc->AddIndirectObject(pStream);

  pDic = new CPDF_Dictionary;
  CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic);
  pEndStream->SetData((const uint8_t*)" Q", 2, FALSE, FALSE);
  pDoc->AddIndirectObject(pEndStream);

  CPDF_Array* pContentArray = nullptr;
  if (CPDF_Array* pArray = ToArray(pContentObj)) {
    pContentArray = pArray;
    CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
    pContentArray->InsertAt(0, pRef);
    pContentArray->AddReference(pDoc, pEndStream);
  } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
    CPDF_Object* pDirectObj = pReference->GetDirect();
    if (pDirectObj) {
      if (CPDF_Array* pArray = pDirectObj->AsArray()) {
        pContentArray = pArray;
        CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
        pContentArray->InsertAt(0, pRef);
        pContentArray->AddReference(pDoc, pEndStream);
      } else if (pDirectObj->IsStream()) {
        pContentArray = new CPDF_Array();
        pContentArray->AddReference(pDoc, pStream->GetObjNum());
        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
        pContentArray->AddReference(pDoc, pEndStream);
        pPageDic->SetAtReference("Contents", pDoc,
                                 pDoc->AddIndirectObject(pContentArray));
      }
    }
  }

  // Need to transform the patterns as well.
  CPDF_Dictionary* pRes = pPageDic->GetDictBy("Resources");
  if (pRes) {
    CPDF_Dictionary* pPattenDict = pRes->GetDictBy("Pattern");
    if (pPattenDict) {
      for (const auto& it : *pPattenDict) {
        CPDF_Object* pObj = it.second;
        if (pObj->IsReference())
          pObj = pObj->GetDirect();

        CPDF_Dictionary* pDict = nullptr;
        if (pObj->IsDictionary())
          pDict = pObj->AsDictionary();
        else if (CPDF_Stream* pStream = pObj->AsStream())
          pDict = pStream->GetDict();
        else
          continue;

        CFX_Matrix m = pDict->GetMatrixBy("Matrix");
        CFX_Matrix t = *(CFX_Matrix*)matrix;
        m.Concat(t);
        pDict->SetAtMatrix("Matrix", m);
      }
    }
  }

  return TRUE;
}

bool CPDFXFA_DocEnvironment::ExportSubmitFile(FPDF_FILEHANDLER* pFileHandler,
                                              int fileType,
                                              FPDF_DWORD encodeType,
                                              FPDF_DWORD flag) {
  if (!m_pContext->GetXFADocView())
    return false;

  CFX_ByteString content;
  CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
  if (!pFormFillEnv)
    return false;

  CFX_RetainPtr<IFX_SeekableStream> fileStream =
      MakeSeekableStream(pFileHandler);

  if (fileType == FXFA_SAVEAS_XML) {
    const char kContent[] = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n";
    fileStream->WriteBlock(kContent, 0, strlen(kContent));
    m_pContext->GetXFADoc()->SavePackage(XFA_HASHCODE_Data, fileStream,
                                         nullptr);
    return true;
  }

  if (fileType != FXFA_SAVEAS_XDP)
    return true;

  if (!flag) {
    flag = FXFA_CONFIG | FXFA_TEMPLATE | FXFA_LOCALESET | FXFA_DATASETS |
           FXFA_XMPMETA | FXFA_XFDF | FXFA_FORM;
  }
  if (!m_pContext->GetPDFDoc()) {
    fileStream->Flush();
    return false;
  }

  CPDF_Dictionary* pRoot = m_pContext->GetPDFDoc()->GetRoot();
  if (!pRoot) {
    fileStream->Flush();
    return false;
  }

  CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
  if (!pAcroForm) {
    fileStream->Flush();
    return false;
  }

  CPDF_Array* pArray = ToArray(pAcroForm->GetObjectFor("XFA"));
  if (!pArray) {
    fileStream->Flush();
    return false;
  }

  int size = pArray->GetCount();
  for (int i = 1; i < size; i += 2) {
    CPDF_Object* pPDFObj = pArray->GetObjectAt(i);
    CPDF_Object* pPrePDFObj = pArray->GetObjectAt(i - 1);
    if (!pPrePDFObj->IsString())
      continue;
    if (!pPDFObj->IsReference())
      continue;

    CPDF_Object* pDirectObj = pPDFObj->GetDirect();
    if (!pDirectObj->IsStream())
      continue;
    if (pPrePDFObj->GetString() == "config" && !(flag & FXFA_CONFIG))
      continue;
    if (pPrePDFObj->GetString() == "template" && !(flag & FXFA_TEMPLATE))
      continue;
    if (pPrePDFObj->GetString() == "localeSet" && !(flag & FXFA_LOCALESET))
      continue;
    if (pPrePDFObj->GetString() == "datasets" && !(flag & FXFA_DATASETS))
      continue;
    if (pPrePDFObj->GetString() == "xmpmeta" && !(flag & FXFA_XMPMETA))
      continue;
    if (pPrePDFObj->GetString() == "xfdf" && !(flag & FXFA_XFDF))
      continue;
    if (pPrePDFObj->GetString() == "form" && !(flag & FXFA_FORM))
      continue;
    if (pPrePDFObj->GetString() == "form") {
      m_pContext->GetXFADoc()->SavePackage(XFA_HASHCODE_Form, fileStream,
                                           nullptr);
    } else if (pPrePDFObj->GetString() == "datasets") {
      m_pContext->GetXFADoc()->SavePackage(XFA_HASHCODE_Datasets, fileStream,
                                           nullptr);
    } else {
      // PDF,creator.
    }
  }
  return true;
}

void CPDFXFA_DocEnvironment::ExportData(CXFA_FFDoc* hDoc,
                                        const CFX_WideString& wsFilePath,
                                        bool bXDP) {
  if (hDoc != m_pContext->GetXFADoc())
    return;

  if (m_pContext->GetDocType() != DOCTYPE_DYNAMIC_XFA &&
      m_pContext->GetDocType() != DOCTYPE_STATIC_XFA) {
    return;
  }

  CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
  if (!pFormFillEnv)
    return;

  int fileType = bXDP ? FXFA_SAVEAS_XDP : FXFA_SAVEAS_XML;
  CFX_ByteString bs = wsFilePath.UTF16LE_Encode();
  if (wsFilePath.IsEmpty()) {
    if (!pFormFillEnv->GetFormFillInfo() ||
        !pFormFillEnv->GetFormFillInfo()->m_pJsPlatform) {
      return;
    }

    CFX_WideString filepath = pFormFillEnv->JS_fieldBrowse();
    bs = filepath.UTF16LE_Encode();
  }
  int len = bs.GetLength();
  FPDF_FILEHANDLER* pFileHandler =
      pFormFillEnv->OpenFile(bXDP ? FXFA_SAVEAS_XDP : FXFA_SAVEAS_XML,
                             (FPDF_WIDESTRING)bs.GetBuffer(len), "wb");
  bs.ReleaseBuffer(len);
  if (!pFileHandler)
    return;

  CFX_RetainPtr<IFX_SeekableStream> fileWrite =
      MakeSeekableStream(pFileHandler);
  CFX_ByteString content;
  if (fileType == FXFA_SAVEAS_XML) {
    content = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n";
    fileWrite->WriteBlock(content.c_str(), fileWrite->GetSize(),
                          content.GetLength());
    m_pContext->GetXFADocView()->GetDoc()->SavePackage(XFA_HASHCODE_Data,
                                                       fileWrite, nullptr);
  } else if (fileType == FXFA_SAVEAS_XDP) {
    if (!m_pContext->GetPDFDoc())
      return;

    CPDF_Dictionary* pRoot = m_pContext->GetPDFDoc()->GetRoot();
    if (!pRoot)
      return;

    CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
    if (!pAcroForm)
      return;

    CPDF_Array* pArray = ToArray(pAcroForm->GetObjectFor("XFA"));
    if (!pArray)
      return;

    int size = pArray->GetCount();
    for (int i = 1; i < size; i += 2) {
      CPDF_Object* pPDFObj = pArray->GetObjectAt(i);
      CPDF_Object* pPrePDFObj = pArray->GetObjectAt(i - 1);
      if (!pPrePDFObj->IsString())
        continue;
      if (!pPDFObj->IsReference())
        continue;

      CPDF_Stream* pStream = ToStream(pPDFObj->GetDirect());
      if (!pStream)
        continue;
      if (pPrePDFObj->GetString() == "form") {
        m_pContext->GetXFADocView()->GetDoc()->SavePackage(XFA_HASHCODE_Form,
                                                           fileWrite, nullptr);
        continue;
      }
      if (pPrePDFObj->GetString() == "datasets") {
        m_pContext->GetXFADocView()->GetDoc()->SavePackage(
            XFA_HASHCODE_Datasets, fileWrite, nullptr);
        continue;
      }
      if (i == size - 1) {
        CFX_WideString wPath = CFX_WideString::FromUTF16LE(
            reinterpret_cast<const unsigned short*>(bs.c_str()),
            bs.GetLength() / sizeof(unsigned short));
        CFX_ByteString bPath = wPath.UTF8Encode();
        const char* szFormat =
            "\n<pdf href=\"%s\" xmlns=\"http://ns.adobe.com/xdp/pdf/\"/>";
        content.Format(szFormat, bPath.c_str());
        fileWrite->WriteBlock(content.c_str(), fileWrite->GetSize(),
                              content.GetLength());
      }
      std::unique_ptr<CPDF_StreamAcc> pAcc(new CPDF_StreamAcc);
      pAcc->LoadAllData(pStream);
      fileWrite->WriteBlock(pAcc->GetData(), fileWrite->GetSize(),
                            pAcc->GetSize());
    }
  }
  fileWrite->Flush();
}

CPDF_Object* CPDF_Reference::SafeGetDirect() const {
  CPDF_Object* obj = GetDirect();
  return (obj && !obj->IsReference()) ? obj : nullptr;
}

//.........这里部分代码省略.........
    pNewOXbjectDic->SetNameFor("Subtype", "Form");
    pNewOXbjectDic->SetIntegerFor("FormType", 1);
    pNewOXbjectDic->SetNameFor("Name", "FRM");
    CFX_FloatRect rcBBox = pPageDict->GetRectFor("ArtBox");
    pNewOXbjectDic->SetRectFor("BBox", rcBBox);
  }

  for (int i = 0; i < nStreams; i++) {
    CPDF_Dictionary* pAnnotDic = ObjectArray.GetAt(i);
    if (!pAnnotDic)
      continue;

    CFX_FloatRect rcAnnot = pAnnotDic->GetRectFor("Rect");
    rcAnnot.Normalize();

    CFX_ByteString sAnnotState = pAnnotDic->GetStringFor("AS");
    CPDF_Dictionary* pAnnotAP = pAnnotDic->GetDictFor("AP");
    if (!pAnnotAP)
      continue;

    CPDF_Stream* pAPStream = pAnnotAP->GetStreamFor("N");
    if (!pAPStream) {
      CPDF_Dictionary* pAPDic = pAnnotAP->GetDictFor("N");
      if (!pAPDic)
        continue;

      if (!sAnnotState.IsEmpty()) {
        pAPStream = pAPDic->GetStreamFor(sAnnotState);
      } else {
        auto it = pAPDic->begin();
        if (it != pAPDic->end()) {
          CPDF_Object* pFirstObj = it->second;
          if (pFirstObj) {
            if (pFirstObj->IsReference())
              pFirstObj = pFirstObj->GetDirect();
            if (!pFirstObj->IsStream())
              continue;
            pAPStream = pFirstObj->AsStream();
          }
        }
      }
    }
    if (!pAPStream)
      continue;

    CPDF_Dictionary* pAPDic = pAPStream->GetDict();
    CFX_Matrix matrix = pAPDic->GetMatrixFor("Matrix");

    CFX_FloatRect rcStream;
    if (pAPDic->KeyExist("Rect"))
      rcStream = pAPDic->GetRectFor("Rect");
    else if (pAPDic->KeyExist("BBox"))
      rcStream = pAPDic->GetRectFor("BBox");

    if (rcStream.IsEmpty())
      continue;

    CPDF_Object* pObj = pAPStream;

    if (pObj) {
      CPDF_Dictionary* pObjDic = pObj->GetDict();
      if (pObjDic) {
        pObjDic->SetNameFor("Type", "XObject");
        pObjDic->SetNameFor("Subtype", "Form");
      }
    }