C++ CPDF_Object::Clone方法代码示例

CPDF_Object* CPDF_Array::Clone(FX_BOOL bDirect) const {
  CPDF_Array* pCopy = new CPDF_Array();
  for (size_t i = 0; i < GetCount(); i++) {
    CPDF_Object* value = m_Objects.at(i);
    pCopy->m_Objects.push_back(value->Clone(bDirect));
  }
  return pCopy;
}

void FPDFAPI_FlatPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
{
    if (pPageDict->KeyExist(name)) {
        return;
    }
    CPDF_Object* pObj = FPDFAPI_GetPageAttr(pPageDict, name);
    if (pObj) {
        pPageDict->SetAt(name, pObj->Clone());
    }
}

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->GetString("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;
}

void CPDF_StreamContentParser::EndImageDict()
{
    if (m_StringBuf.GetSize() != m_LastImageDict.GetSize() ||
            FXSYS_memcmp32(m_StringBuf.GetBuffer(), m_LastImageDict.GetBuffer(), m_StringBuf.GetSize())) {
        m_WordState = 0;
        StartDict();
        InputData(m_StringBuf.GetBuffer(), m_StringBuf.GetSize());
        Finish();
        m_bSameLastDict = FALSE;
        if (m_pLastImageDict && m_bReleaseLastDict) {
            m_pLastImageDict->Release();
            m_pLastImageDict = NULL;
        }
        if (!m_ObjectSize) {
            m_InlineImageState = 0;
            return;
        }
        m_pLastImageDict = (CPDF_Dictionary*)m_pObjectStack[--m_ObjectSize];
        m_bReleaseLastDict = !m_pObjectState[m_ObjectSize];
        m_pObjectState[m_ObjectSize] = FALSE;
        _PDF_ReplaceAbbr(m_pLastImageDict);
        m_LastImageDict.TakeOver(m_StringBuf);
        if (m_pLastImageDict->KeyExist(FX_BSTRC("ColorSpace"))) {
            CPDF_Object* pCSObj = m_pLastImageDict->GetElementValue(FX_BSTRC("ColorSpace"));
            if (pCSObj->GetType() == PDFOBJ_NAME) {
                CFX_ByteString name = pCSObj->GetString();
                if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
                    pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
                    if (pCSObj) {
                        if (!pCSObj->GetObjNum()) {
                            pCSObj = pCSObj->Clone();
                        }
                        m_pLastImageDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
                    }
                }
            }
        }
    } else {
        m_bSameLastDict = TRUE;
    }
    m_ImageSrcBuf.Clear();
    if (m_pLastCloneImageDict) {
        m_pLastCloneImageDict->Release();
    }
    m_pLastCloneImageDict = (CPDF_Dictionary*)m_pLastImageDict->Clone();
    if (m_pLastCloneImageDict->KeyExist(FX_BSTRC("Filter"))) {
        m_WordState = 10;
        m_InlineImageState = 0;
    } else {
        int width = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Width"));
        int height = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Height"));
        int OrigSize = 0;
        CPDF_Object* pCSObj = m_pLastCloneImageDict->GetElementValue(FX_BSTRC("ColorSpace"));
        if (pCSObj != NULL) {
            int bpc = m_pLastCloneImageDict->GetInteger(FX_BSTRC("BitsPerComponent"));
            int nComponents = 1;
            CPDF_ColorSpace* pCS = m_pDocument->LoadColorSpace(pCSObj);
            if (pCS == NULL) {
                nComponents = 3;
            } else {
                nComponents = pCS->CountComponents();
                m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
            }
            int pitch = (width * bpc * nComponents + 7) / 8;
            OrigSize = pitch * height;
        } else {
            OrigSize = ((width + 7) / 8) * height;
        }
        m_ImageSrcBuf.AppendBlock(NULL, OrigSize);
        m_WordState = 11;
        m_InlineImageState = 0;
    }
}

void CPDF_StreamContentParser::Handle_BeginImage()
{
    FX_FILESIZE savePos = m_pSyntax->GetPos();
    CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
    while (1) {
        CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
        if (type == CPDF_StreamParser::Keyword) {
            CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize());
            if (bsKeyword != FX_BSTRC("ID")) {
                m_pSyntax->SetPos(savePos);
                pDict->Release();
                return;
            }
        }
        if (type != CPDF_StreamParser::Name) {
            break;
        }
        CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, m_pSyntax->GetWordSize() - 1);
        CPDF_Object* pObj = m_pSyntax->ReadNextObject();
        if (!key.IsEmpty()) {
            pDict->SetAt(key, pObj, m_pDocument);
        } else if (pObj) {
            pObj->Release();
        }
    }
    _PDF_ReplaceAbbr(pDict);
    CPDF_Object* pCSObj = NULL;
    if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
        pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
        if (pCSObj->GetType() == PDFOBJ_NAME) {
            CFX_ByteString name = pCSObj->GetString();
            if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
                pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
                if (pCSObj && !pCSObj->GetObjNum()) {
                    pCSObj = pCSObj->Clone();
                    pDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
                }
            }
        }
    }
    CPDF_Stream* pStream = m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage);
    while (1) {
        CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
        if (type == CPDF_StreamParser::EndOfData) {
            break;
        }
        if (type != CPDF_StreamParser::Keyword) {
            continue;
        }
        if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
                m_pSyntax->GetWordBuf()[1] == 'I') {
            break;
        }
    }
    if (m_Options.m_bTextOnly) {
        if (pStream) {
            pStream->Release();
        } else {
            pDict->Release();
        }
        return;
    }
    pDict->SetAtName(FX_BSTRC("Subtype"), FX_BSTRC("Image"));
    CPDF_ImageObject *pImgObj = AddImage(pStream, NULL, TRUE);
    if (!pImgObj) {
        if (pStream) {
            pStream->Release();
        } else {
            pDict->Release();
        }
    }
}

CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
  if (!pFieldDict->KeyExist("FT")) {
    // Key "FT" is required for terminal fields, it is also inheritable.
    CPDF_Dictionary* pParentDict = pFieldDict->GetDictFor("Parent");
    if (!pParentDict || !pParentDict->KeyExist("FT"))
      return nullptr;
  }

  CPDF_Dictionary* pDict = pFieldDict;
  CFX_WideString csWName = FPDF_GetFullName(pFieldDict);
  if (csWName.IsEmpty())
    return nullptr;

  CPDF_FormField* pField = nullptr;
  pField = m_pFieldTree->GetField(csWName);
  if (!pField) {
    CPDF_Dictionary* pParent = pFieldDict;
    if (!pFieldDict->KeyExist("T") &&
        pFieldDict->GetStringFor("Subtype") == "Widget") {
      pParent = pFieldDict->GetDictFor("Parent");
      if (!pParent)
        pParent = pFieldDict;
    }

    if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
      if (pFieldDict->KeyExist("FT")) {
        CPDF_Object* pFTValue = pFieldDict->GetDirectObjectFor("FT");
        if (pFTValue)
          pParent->SetFor("FT", pFTValue->Clone());
      }

      if (pFieldDict->KeyExist("Ff")) {
        CPDF_Object* pFfValue = pFieldDict->GetDirectObjectFor("Ff");
        if (pFfValue)
          pParent->SetFor("Ff", pFfValue->Clone());
      }
    }

    pField = new CPDF_FormField(this, pParent);
    CPDF_Object* pTObj = pDict->GetObjectFor("T");
    if (ToReference(pTObj)) {
      std::unique_ptr<CPDF_Object> pClone = pTObj->CloneDirectObject();
      if (pClone)
        pDict->SetFor("T", std::move(pClone));
      else
        pDict->SetNewFor<CPDF_Name>("T", "");
    }
    m_pFieldTree->SetField(csWName, pField);
  }

  CPDF_Array* pKids = pFieldDict->GetArrayFor("Kids");
  if (pKids) {
    for (size_t i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDictAt(i);
      if (!pKid)
        continue;
      if (pKid->GetStringFor("Subtype") != "Widget")
        continue;

      AddControl(pField, pKid);
    }
  } else {
    if (pFieldDict->GetStringFor("Subtype") == "Widget")
      AddControl(pField, pFieldDict);
  }
  return pField;
}

CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
  if (!pFieldDict->KeyExist("T"))
    return nullptr;

  CPDF_Dictionary* pDict = pFieldDict;
  CFX_WideString csWName = FPDF_GetFullName(pFieldDict);
  if (csWName.IsEmpty())
    return nullptr;

  CPDF_FormField* pField = nullptr;
  pField = m_pFieldTree->GetField(csWName);
  if (!pField) {
    CPDF_Dictionary* pParent = pFieldDict;
    if (!pFieldDict->KeyExist("T") &&
        pFieldDict->GetStringBy("Subtype") == "Widget") {
      pParent = pFieldDict->GetDictBy("Parent");
      if (!pParent)
        pParent = pFieldDict;
    }

    if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
      if (pFieldDict->KeyExist("FT")) {
        CPDF_Object* pFTValue = pFieldDict->GetDirectObjectBy("FT");
        if (pFTValue)
          pParent->SetAt("FT", pFTValue->Clone());
      }

      if (pFieldDict->KeyExist("Ff")) {
        CPDF_Object* pFfValue = pFieldDict->GetDirectObjectBy("Ff");
        if (pFfValue)
          pParent->SetAt("Ff", pFfValue->Clone());
      }
    }

    pField = new CPDF_FormField(this, pParent);
    CPDF_Object* pTObj = pDict->GetObjectBy("T");
    if (ToReference(pTObj)) {
      CPDF_Object* pClone = pTObj->CloneDirectObject();
      if (pClone)
        pDict->SetAt("T", pClone);
      else
        pDict->SetAtName("T", "");
    }
    m_pFieldTree->SetField(csWName, pField);
  }

  CPDF_Array* pKids = pFieldDict->GetArrayBy("Kids");
  if (!pKids) {
    if (pFieldDict->GetStringBy("Subtype") == "Widget")
      AddControl(pField, pFieldDict);
  } else {
    for (size_t i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDictAt(i);
      if (!pKid)
        continue;
      if (pKid->GetStringBy("Subtype") != "Widget")
        continue;

      AddControl(pField, pKid);
    }
  }
  return pField;
}

FX_BOOL CPDF_FormField::ResetField(FX_BOOL bNotify) {
  switch (m_Type) {
    case CPDF_FormField::CheckBox:
    case CPDF_FormField::RadioButton: {
      int iCount = CountControls();
      if (iCount) {
        // TODO(weili): Check whether anything special needs to be done for
        // unison field. Otherwise, merge these branches.
        if (PDF_FormField_IsUnison(this)) {
          for (int i = 0; i < iCount; i++) {
            CheckControl(i, GetControl(i)->IsDefaultChecked(), FALSE);
          }
        } else {
          for (int i = 0; i < iCount; i++) {
            CheckControl(i, GetControl(i)->IsDefaultChecked(), FALSE);
          }
        }
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        m_pForm->m_pFormNotify->AfterCheckedStatusChange(this);
      }
    } break;
    case CPDF_FormField::ComboBox:
    case CPDF_FormField::ListBox: {
      CFX_WideString csValue;
      ClearSelection();
      int iIndex = GetDefaultSelectedItem();
      if (iIndex >= 0)
        csValue = GetOptionLabel(iIndex);

      if (bNotify && !NotifyListOrComboBoxBeforeChange(csValue))
        return FALSE;

      SetItemSelection(iIndex, TRUE);
      if (bNotify)
        NotifyListOrComboBoxAfterChange();
    } break;
    case CPDF_FormField::Text:
    case CPDF_FormField::RichText:
    case CPDF_FormField::File:
    default: {
      CPDF_Object* pDV = FPDF_GetFieldAttr(m_pDict, "DV");
      CFX_WideString csDValue;
      if (pDV)
        csDValue = pDV->GetUnicodeText();

      CPDF_Object* pV = FPDF_GetFieldAttr(m_pDict, "V");
      CFX_WideString csValue;
      if (pV)
        csValue = pV->GetUnicodeText();

      CPDF_Object* pRV = FPDF_GetFieldAttr(m_pDict, "RV");
      if (!pRV && (csDValue == csValue))
        return FALSE;

      if (bNotify && !NotifyBeforeValueChange(csDValue))
        return FALSE;

      if (pDV) {
        CPDF_Object* pClone = pDV->Clone();
        if (!pClone)
          return FALSE;

        m_pDict->SetAt("V", pClone);
        if (pRV) {
          CPDF_Object* pCloneR = pDV->Clone();
          m_pDict->SetAt("RV", pCloneR);
        }
      } else {
        m_pDict->RemoveAt("V");
        m_pDict->RemoveAt("RV");
      }
      if (bNotify)
        NotifyAfterValueChange();
    } break;
  }
  return TRUE;
}

FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document* pSrcPDFDoc,
                                       CFX_WordArray* nPageNum,
                                       CPDF_Document* pDestPDFDoc,
                                       int nIndex) {
  int curpage = nIndex;

  nonstd::unique_ptr<ObjectNumberMap> pObjNumberMap(new ObjectNumberMap);

  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)
      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 = 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;
}

FX_BOOL CPDF_FormField::ResetField(FX_BOOL bNotify) {
  switch (m_Type) {
    case CPDF_FormField::CheckBox:
    case CPDF_FormField::RadioButton: {
      int iCount = CountControls();
      if (iCount) {
        if (PDF_FormField_IsUnison(this)) {
          for (int i = 0; i < iCount; i++) {
            CheckControl(i, GetControl(i)->IsDefaultChecked(), FALSE);
          }
        } else {
          for (int i = 0; i < iCount; i++) {
            CPDF_FormControl* pControl = GetControl(i);
            FX_BOOL bChecked = pControl->IsDefaultChecked();
            CheckControl(i, bChecked, FALSE);
          }
        }
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        m_pForm->m_pFormNotify->AfterCheckedStatusChange(this);
      }
    } break;
    case CPDF_FormField::ComboBox: {
      CFX_WideString csValue;
      ClearSelection();
      int iIndex = GetDefaultSelectedItem();
      if (iIndex >= 0) {
        csValue = GetOptionLabel(iIndex);
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        int iRet = m_pForm->m_pFormNotify->BeforeValueChange(this, csValue);
        if (iRet < 0) {
          return FALSE;
        }
      }
      SetItemSelection(iIndex, TRUE);
      if (bNotify && m_pForm->m_pFormNotify) {
        m_pForm->m_pFormNotify->AfterValueChange(this);
      }
    } break;
    case CPDF_FormField::ListBox: {
      CFX_WideString csValue;
      ClearSelection();
      int iIndex = GetDefaultSelectedItem();
      if (iIndex >= 0) {
        csValue = GetOptionLabel(iIndex);
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        int iRet = m_pForm->m_pFormNotify->BeforeSelectionChange(this, csValue);
        if (iRet < 0) {
          return FALSE;
        }
      }
      SetItemSelection(iIndex, TRUE);
      if (bNotify && m_pForm->m_pFormNotify) {
        m_pForm->m_pFormNotify->AfterSelectionChange(this);
      }
    } break;
    case CPDF_FormField::Text:
    case CPDF_FormField::RichText:
    case CPDF_FormField::File:
    default: {
      CPDF_Object* pDV = FPDF_GetFieldAttr(m_pDict, "DV");
      CFX_WideString csDValue;
      if (pDV) {
        csDValue = pDV->GetUnicodeText();
      }
      CPDF_Object* pV = FPDF_GetFieldAttr(m_pDict, "V");
      CFX_WideString csValue;
      if (pV) {
        csValue = pV->GetUnicodeText();
      }
      CPDF_Object* pRV = FPDF_GetFieldAttr(m_pDict, "RV");
      if (!pRV && (csDValue == csValue)) {
        return FALSE;
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        int iRet = m_pForm->m_pFormNotify->BeforeValueChange(this, csDValue);
        if (iRet < 0) {
          return FALSE;
        }
      }
      if (pDV) {
        CPDF_Object* pClone = pDV->Clone();
        if (!pClone) {
          return FALSE;
        }
        m_pDict->SetAt("V", pClone);
        if (pRV) {
          CPDF_Object* pCloneR = pDV->Clone();
          m_pDict->SetAt("RV", pCloneR);
        }
      } else {
        m_pDict->RemoveAt("V");
        m_pDict->RemoveAt("RV");
      }
      if (bNotify && m_pForm->m_pFormNotify) {
        m_pForm->m_pFormNotify->AfterValueChange(this);
      }
      m_pForm->m_bUpdated = TRUE;
//.........这里部分代码省略.........

CFDF_Document* CPDF_InterForm::ExportToFDF(
    const CFX_WideStringC& pdf_path,
    const std::vector<CPDF_FormField*>& fields,
    bool bIncludeOrExclude,
    bool bSimpleFileSpec) const {
  CFDF_Document* pDoc = CFDF_Document::CreateNewDoc();
  if (pDoc == NULL) {
    return NULL;
  }
  CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDict("FDF");
  if (!pdf_path.IsEmpty()) {
    if (bSimpleFileSpec) {
      CFX_WideString wsFilePath = FILESPEC_EncodeFileName(pdf_path);
      pMainDict->SetAtString(FX_BSTRC("F"),
                             CFX_ByteString::FromUnicode(wsFilePath));
      pMainDict->SetAtString(FX_BSTRC("UF"), PDF_EncodeText(wsFilePath));
    } else {
      CPDF_FileSpec filespec;
      filespec.SetFileName(pdf_path);
      pMainDict->SetAt("F", static_cast<CPDF_Object*>(filespec));
    }
  }
  CPDF_Array* pFields = CPDF_Array::Create();
  if (pFields == NULL) {
    return NULL;
  }
  pMainDict->SetAt("Fields", pFields);
  int nCount = m_pFieldTree->m_Root.CountFields();
  for (int i = 0; i < nCount; i++) {
    CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
    if (pField == NULL || pField->GetType() == CPDF_FormField::PushButton) {
      continue;
    }
    FX_DWORD dwFlags = pField->GetFieldFlags();
    if (dwFlags & 0x04)
      continue;

    auto it = std::find(fields.begin(), fields.end(), pField);
    if (bIncludeOrExclude == (it != fields.end())) {
      if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetString("V").IsEmpty())
        continue;

      CFX_WideString fullname = GetFullName(pField->GetFieldDict());
      CPDF_Dictionary* pFieldDict = CPDF_Dictionary::Create();
      if (!pFieldDict)
        return nullptr;

      CPDF_String* pString = CPDF_String::Create(fullname);
      if (!pString) {
        pFieldDict->Release();
        return nullptr;
      }
      pFieldDict->SetAt("T", pString);
      if (pField->GetType() == CPDF_FormField::CheckBox ||
          pField->GetType() == CPDF_FormField::RadioButton) {
        CFX_WideString csExport = pField->GetCheckValue(FALSE);
        CFX_ByteString csBExport = PDF_EncodeText(csExport);
        CPDF_Object* pOpt = FPDF_GetFieldAttr(pField->m_pDict, "Opt");
        if (pOpt)
          pFieldDict->SetAtString("V", csBExport);
        else
          pFieldDict->SetAtName("V", csBExport);
      } else {
        CPDF_Object* pV = FPDF_GetFieldAttr(pField->m_pDict, "V");
        if (pV)
          pFieldDict->SetAt("V", pV->Clone(TRUE));
      }
      pFields->Add(pFieldDict);
    }
  }
  return pDoc;
}

CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
  if (!pFieldDict->KeyExist(FX_BSTRC("T"))) {
    return NULL;
  }
  CPDF_Dictionary* pDict = pFieldDict;
  CFX_WideString csWName = GetFullName(pFieldDict);
  if (csWName.IsEmpty()) {
    return NULL;
  }
  CPDF_FormField* pField = NULL;
  pField = m_pFieldTree->GetField(csWName);
  if (pField == NULL) {
    CPDF_Dictionary* pParent = pFieldDict;
    if (!pFieldDict->KeyExist(FX_BSTRC("T")) &&
        pFieldDict->GetString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget")) {
      pParent = pFieldDict->GetDict(FX_BSTRC("Parent"));
      if (!pParent) {
        pParent = pFieldDict;
      }
    }
    if (pParent && pParent != pFieldDict &&
        !pParent->KeyExist(FX_BSTRC("FT"))) {
      if (pFieldDict->KeyExist(FX_BSTRC("FT"))) {
        CPDF_Object* pFTValue = pFieldDict->GetElementValue(FX_BSTRC("FT"));
        if (pFTValue) {
          pParent->SetAt(FX_BSTRC("FT"), pFTValue->Clone());
        }
      }
      if (pFieldDict->KeyExist(FX_BSTRC("Ff"))) {
        CPDF_Object* pFfValue = pFieldDict->GetElementValue(FX_BSTRC("Ff"));
        if (pFfValue) {
          pParent->SetAt(FX_BSTRC("Ff"), pFfValue->Clone());
        }
      }
    }
    pField = new CPDF_FormField(this, pParent);
    CPDF_Object* pTObj = pDict->GetElement("T");
    if (ToReference(pTObj)) {
      CPDF_Object* pClone = pTObj->Clone(TRUE);
      if (pClone)
        pDict->SetAt("T", pClone);
      else
        pDict->SetAtName("T", "");
    }
    m_pFieldTree->SetField(csWName, pField);
  }
  CPDF_Array* pKids = pFieldDict->GetArray("Kids");
  if (pKids == NULL) {
    if (pFieldDict->GetString("Subtype") == "Widget") {
      AddControl(pField, pFieldDict);
    }
  } else {
    for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDict(i);
      if (pKid == NULL) {
        continue;
      }
      if (pKid->GetString("Subtype") != "Widget") {
        continue;
      }
      AddControl(pField, pKid);
    }
  }
  return pField;
}

FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document* pSrcPDFDoc,
                                       std::vector<uint16_t>* 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->RemoveFor(cbSrcKeyStr);
        pCurPageDict->SetFor(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->SetFor("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->SetFor("MediaBox", pArray);
        }
      } else {
        pCurPageDict->SetFor("MediaBox", pInheritable->Clone());
      }
    }
    // 2 Resources //required
    if (!pCurPageDict->KeyExist("Resources")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Resources");
      if (!pInheritable)
        return FALSE;
      pCurPageDict->SetFor("Resources", pInheritable->Clone());
    }
    // 3 CropBox  //Optional
    if (!pCurPageDict->KeyExist("CropBox")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox");
      if (pInheritable)
        pCurPageDict->SetFor("CropBox", pInheritable->Clone());
    }
    // 4 Rotate  //Optional
    if (!pCurPageDict->KeyExist("Rotate")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Rotate");
      if (pInheritable)
        pCurPageDict->SetFor("Rotate", pInheritable->Clone());
    }

    // Update the reference
    uint32_t dwOldPageObj = pSrcPageDict->GetObjNum();
    uint32_t dwNewPageObj = pCurPageDict->GetObjNum();

    (*pObjNumberMap)[dwOldPageObj] = dwNewPageObj;

    UpdateReference(pCurPageDict, pDestPDFDoc, pObjNumberMap.get());
    ++curpage;
  }

  return TRUE;
}