C++ CPDF_Object类代码示例

CPDF_Object* CPDF_Dictionary::GetElementValue(
    const CFX_ByteStringC& key) const {
  CPDF_Object* p = GetElement(key);
  return p ? p->GetDirect() : nullptr;
}

CPDF_Object* CPDF_Dictionary::GetElementValue(FX_BSTR key) const
{
    CPDF_Object* p = NULL;
    m_Map.Lookup(key, (void*&)p);
    return p ? p->GetDirect() : NULL;
}

DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
                                               FPDF_CLIPPATH clipPath) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return;

  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;

  CFX_ByteTextBuf strClip;
  CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
  FX_DWORD i;
  for (i = 0; i < pClipPath->GetPathCount(); i++) {
    CPDF_Path path = pClipPath->GetPath(i);
    int iClipType = pClipPath->GetClipType(i);
    if (path.GetPointCount() == 0) {
      // Empty clipping (totally clipped out)
      strClip << "0 0 m W n ";
    } else {
      OutputPath(strClip, path);
      if (iClipType == FXFILL_WINDING)
        strClip << "W n\n";
      else
        strClip << "W* n\n";
    }
  }
  CPDF_Dictionary* pDic = new CPDF_Dictionary;
  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
  pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
  CPDF_Document* pDoc = pPage->m_pDocument;
  if (!pDoc)
    return;
  pDoc->AddIndirectObject(pStream);

  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);
  } 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);
      } else if (pDirectObj->IsStream()) {
        pContentArray = new CPDF_Array();
        pContentArray->AddReference(pDoc, pStream->GetObjNum());
        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
        pPageDic->SetAtReference("Contents", pDoc,
                                 pDoc->AddIndirectObject(pContentArray));
      }
    }
  }
}

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;
    }
}

bool CPDF_DataAvail::CheckUnkownPageNode(uint32_t dwPageNo,
                                         PageNode* pPageNode,
                                         DownloadHints* pHints) {
  bool bExist = false;
  std::unique_ptr<CPDF_Object> pPage = GetObject(dwPageNo, pHints, &bExist);
  if (!bExist) {
    m_docStatus = PDF_DATAAVAIL_ERROR;
    return false;
  }

  if (!pPage) {
    if (m_docStatus == PDF_DATAAVAIL_ERROR)
      m_docStatus = PDF_DATAAVAIL_ERROR;
    return false;
  }

  if (pPage->IsArray()) {
    pPageNode->m_dwPageNo = dwPageNo;
    pPageNode->m_type = PDF_PAGENODE_ARRAY;
    return true;
  }

  if (!pPage->IsDictionary()) {
    m_docStatus = PDF_DATAAVAIL_ERROR;
    return false;
  }

  pPageNode->m_dwPageNo = dwPageNo;
  CPDF_Dictionary* pDict = pPage->GetDict();
  CFX_ByteString type = pDict->GetStringFor("Type");
  if (type == "Pages") {
    pPageNode->m_type = PDF_PAGENODE_PAGES;
    CPDF_Object* pKids = pDict->GetObjectFor("Kids");
    if (!pKids) {
      m_docStatus = PDF_DATAAVAIL_PAGE;
      return true;
    }

    switch (pKids->GetType()) {
      case CPDF_Object::REFERENCE: {
        CPDF_Reference* pKid = pKids->AsReference();
        PageNode* pNode = new PageNode();
        pPageNode->m_childNode.Add(pNode);
        pNode->m_dwPageNo = pKid->GetRefObjNum();
      } break;
      case CPDF_Object::ARRAY: {
        CPDF_Array* pKidsArray = pKids->AsArray();
        for (size_t i = 0; i < pKidsArray->GetCount(); ++i) {
          CPDF_Reference* pKid = ToReference(pKidsArray->GetObjectAt(i));
          if (!pKid)
            continue;

          PageNode* pNode = new PageNode();
          pPageNode->m_childNode.Add(pNode);
          pNode->m_dwPageNo = pKid->GetRefObjNum();
        }
      } break;
      default:
        break;
    }
  } else if (type == "Page") {
    pPageNode->m_type = PDF_PAGENODE_PAGE;
  } else {
    m_docStatus = PDF_DATAAVAIL_ERROR;
    return false;
  }
  return true;
}

DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page, FS_MATRIX* matrix, FS_RECTF* clipRect)
{
	if(!page)
		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_Page* pPage = (CPDF_Page*)page;
	CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
	CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
	if(!pContentObj)
		pContentObj = pPageDic->GetArray("Contents");
	if(!pContentObj)
		return FALSE;
	
	CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
	CPDF_Document* pDoc = pPage->m_pDocument;
	if(!pDoc)
		return FALSE;
	pDoc->AddIndirectObject(pStream);

	pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pEndStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pEndStream->SetData((FX_LPCBYTE)" Q", 2, FALSE, FALSE);
	pDoc->AddIndirectObject(pEndStream);
	
	CPDF_Array* pContentArray = NULL;
	if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
	{
		pContentArray = (CPDF_Array*)pContentObj;
		CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
		pContentArray->InsertAt(0, pRef);
		pContentArray->AddReference(pDoc,pEndStream);
		
	}
	else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
	{
		CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
		CPDF_Object* pDirectObj = pReference->GetDirect();
		if(pDirectObj != NULL)
		{
			if(pDirectObj->GetType() == PDFOBJ_ARRAY)
			{
				pContentArray = (CPDF_Array*)pDirectObj;
				CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
				pContentArray->InsertAt(0, pRef);
				pContentArray->AddReference(pDoc,pEndStream);
				
			}
			else if(pDirectObj->GetType() == PDFOBJ_STREAM)
			{
				pContentArray = FX_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->GetDict(FX_BSTRC("Resources"));
	if(pRes)
	{
		CPDF_Dictionary* pPattenDict = pRes->GetDict(FX_BSTRC("Pattern"));
		if(pPattenDict)
		{
			FX_POSITION pos = pPattenDict->GetStartPos();
			while(pos)
			{
				CPDF_Dictionary* pDict = NULL;
				CFX_ByteString key;
				CPDF_Object* pObj = pPattenDict->GetNextElement(pos, key);
				if(pObj->GetType() == PDFOBJ_REFERENCE)
					pObj = pObj->GetDirect();
				if(pObj->GetType() == PDFOBJ_DICTIONARY)
				{
					pDict = (CPDF_Dictionary*)pObj;
				}
				else if(pObj->GetType() == PDFOBJ_STREAM)
				{
					pDict = ((CPDF_Stream*)pObj)->GetDict();
				}
				else
					continue;
				
				CFX_AffineMatrix m = pDict->GetMatrix(FX_BSTRC("Matrix"));
//.........这里部分代码省略.........

CPDF_Object* CPDF_StreamParser::ReadNextObject(FX_BOOL bAllowNestedArray, FX_BOOL bInArray)
{
    FX_BOOL bIsNumber;
    GetNextWord(bIsNumber);
    if (m_WordSize == 0) {
        return NULL;
    }
    if (bIsNumber) {
        m_WordBuffer[m_WordSize] = 0;
        return CPDF_Number::Create(CFX_ByteStringC(m_WordBuffer, m_WordSize));
    }
    int first_char = m_WordBuffer[0];
    if (first_char == '/') {
        return CPDF_Name::Create(PDF_NameDecode(CFX_ByteStringC(m_WordBuffer + 1, m_WordSize - 1)));
    }
    if (first_char == '(') {
        return CPDF_String::Create(ReadString());
    }
    if (first_char == '<') {
        if (m_WordSize == 1) {
            return CPDF_String::Create(ReadHexString(), TRUE);
        }
        CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
        while (1) {
            GetNextWord(bIsNumber);
            if (m_WordSize == 0) {
                pDict->Release();
                return NULL;
            }
            if (m_WordSize == 2 && m_WordBuffer[0] == '>') {
                break;
            }
            if (m_WordBuffer[0] != '/') {
                pDict->Release();
                return NULL;
            }
            CFX_ByteString key = PDF_NameDecode(CFX_ByteStringC(m_WordBuffer + 1, m_WordSize - 1));
            CPDF_Object* pObj = ReadNextObject(TRUE);
            if (pObj == NULL) {
                if (pDict) {
                    pDict->Release();
                }
                return NULL;
            }
            if (!key.IsEmpty()) {
                pDict->SetAt(key, pObj);
            } else {
                pObj->Release();
            }
        }
        return pDict;
    }
    if (first_char == '[') {
        if (!bAllowNestedArray && bInArray) {
            return NULL;
        }
        CPDF_Array* pArray = CPDF_Array::Create();
        while (1) {
            CPDF_Object* pObj = ReadNextObject(bAllowNestedArray, TRUE);
            if (pObj == NULL) {
                if (m_WordSize == 0 || m_WordBuffer[0] == ']') {
                    return pArray;
                }
                if (m_WordBuffer[0] == '[') {
                    continue;
                }
            } else {
                pArray->Add(pObj);
            }
        }
    }
    if (m_WordSize == 4) {
        if (*(FX_DWORD*)m_WordBuffer == FXDWORD_TRUE) {
            return CPDF_Boolean::Create(TRUE);
        }
        if (*(FX_DWORD*)m_WordBuffer == FXDWORD_NULL) {
            return CPDF_Null::Create();
        }
    } else if (m_WordSize == 5) {
        if (*(FX_DWORD*)m_WordBuffer == FXDWORD_FALS && m_WordBuffer[4] == 'e') {
            return CPDF_Boolean::Create(FALSE);
        }
    }
    return NULL;
}

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;
}

CPDF_AAction CPDF_FormField::GetAdditionalAction() const {
  CPDF_Object* pObj = FPDF_GetFieldAttr(m_pDict, "AA");
  return CPDF_AAction(pObj ? pObj->GetDict() : nullptr);
}

CFX_WideString CPDF_FormField::GetRichTextString() const {
  CPDF_Object* pObj = FPDF_GetFieldAttr(m_pDict, "RV");
  return pObj ? pObj->GetUnicodeText() : L"";
}

FX_BOOL CPDF_FormField::SetItemSelection(int index,
                                         FX_BOOL bSelected,
                                         FX_BOOL bNotify) {
  ASSERT(GetType() == ComboBox || GetType() == ListBox);
  if (index < 0 || index >= CountOptions())
    return FALSE;

  CFX_WideString opt_value = GetOptionValue(index);
  if (bNotify && !NotifyListOrComboBoxBeforeChange(opt_value))
    return FALSE;

  if (bSelected) {
    if (GetType() == ListBox) {
      SelectOption(index, TRUE);
      if (!(m_Flags & kFormListMultiSelect)) {
        m_pDict->SetStringFor("V", PDF_EncodeText(opt_value));
      } else {
        CPDF_Array* pArray = new CPDF_Array;
        for (int i = 0; i < CountOptions(); i++) {
          if (i == index || IsItemSelected(i)) {
            opt_value = GetOptionValue(i);
            pArray->AddString(PDF_EncodeText(opt_value));
          }
        }
        m_pDict->SetFor("V", pArray);
      }
    } else {
      m_pDict->SetStringFor("V", PDF_EncodeText(opt_value));
      CPDF_Array* pI = new CPDF_Array;
      pI->AddInteger(index);
      m_pDict->SetFor("I", pI);
    }
  } else {
    CPDF_Object* pValue = FPDF_GetFieldAttr(m_pDict, "V");
    if (pValue) {
      if (GetType() == ListBox) {
        SelectOption(index, FALSE);
        if (pValue->IsString()) {
          if (pValue->GetUnicodeText() == opt_value)
            m_pDict->RemoveFor("V");
        } else if (pValue->IsArray()) {
          std::unique_ptr<CPDF_Array, ReleaseDeleter<CPDF_Array>> pArray(
              new CPDF_Array);
          for (int i = 0; i < CountOptions(); i++) {
            if (i != index && IsItemSelected(i)) {
              opt_value = GetOptionValue(i);
              pArray->AddString(PDF_EncodeText(opt_value));
            }
          }
          if (pArray->GetCount() > 0)
            m_pDict->SetFor("V", pArray.release());  // std::move someday
        }
      } else {
        m_pDict->RemoveFor("V");
        m_pDict->RemoveFor("I");
      }
    }
  }
  if (bNotify)
    NotifyListOrComboBoxAfterChange();
  return TRUE;
}

std::unique_ptr<CFDF_Document> CPDF_InterForm::ExportToFDF(
    const CFX_WideStringC& pdf_path,
    const std::vector<CPDF_FormField*>& fields,
    bool bIncludeOrExclude,
    bool bSimpleFileSpec) const {
  std::unique_ptr<CFDF_Document> pDoc = CFDF_Document::CreateNewDoc();
  if (!pDoc)
    return nullptr;

  CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDictFor("FDF");
  if (!pdf_path.IsEmpty()) {
    if (bSimpleFileSpec) {
      CFX_WideString wsFilePath = CPDF_FileSpec::EncodeFileName(pdf_path);
      pMainDict->SetNewFor<CPDF_String>(
          "F", CFX_ByteString::FromUnicode(wsFilePath), false);
      pMainDict->SetNewFor<CPDF_String>("UF", PDF_EncodeText(wsFilePath),
                                        false);
    } else {
      CPDF_FileSpec filespec(pDoc->GetByteStringPool());
      filespec.SetFileName(pdf_path);
      pMainDict->SetFor("F", pdfium::WrapUnique(filespec.GetObj()));
    }
  }

  CPDF_Array* pFields = pMainDict->SetNewFor<CPDF_Array>("Fields");
  size_t nCount = m_pFieldTree->m_Root.CountFields();
  for (size_t i = 0; i < nCount; ++i) {
    CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
    if (!pField || pField->GetType() == CPDF_FormField::PushButton)
      continue;

    uint32_t dwFlags = pField->GetFieldFlags();
    if (dwFlags & 0x04)
      continue;

    if (bIncludeOrExclude == pdfium::ContainsValue(fields, pField)) {
      if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetStringFor("V").IsEmpty())
        continue;

      CFX_WideString fullname = FPDF_GetFullName(pField->GetFieldDict());
      auto pFieldDict =
          pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool());
      pFieldDict->SetNewFor<CPDF_String>("T", fullname);
      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->SetNewFor<CPDF_String>("V", csBExport, false);
        else
          pFieldDict->SetNewFor<CPDF_Name>("V", csBExport);
      } else {
        CPDF_Object* pV = FPDF_GetFieldAttr(pField->m_pDict, "V");
        if (pV)
          pFieldDict->SetFor("V", pV->CloneDirectObject());
      }
      pFields->Add(std::move(pFieldDict));
    }
  }
  return pDoc;
}

FX_BOOL CPDF_FormField::SetItemSelection(int index,
                                         FX_BOOL bSelected,
                                         FX_BOOL bNotify) {
  ASSERT(GetType() == ComboBox || GetType() == ListBox);
  if (index < 0 || index >= CountOptions())
    return FALSE;

  CFX_WideString opt_value = GetOptionValue(index);
  if (bNotify && !NotifyListOrComboBoxBeforeChange(opt_value))
    return FALSE;

  if (bSelected) {
    if (GetType() == ListBox) {
      SelectOption(index, TRUE);
      if (!(m_Flags & FORMLIST_MULTISELECT)) {
        m_pDict->SetAtString("V", PDF_EncodeText(opt_value));
      } else {
        CPDF_Array* pArray = new CPDF_Array;
        for (int i = 0; i < CountOptions(); i++) {
          if (i == index || IsItemSelected(i)) {
            opt_value = GetOptionValue(i);
            pArray->AddString(PDF_EncodeText(opt_value));
          }
        }
        m_pDict->SetAt("V", pArray);
      }
    } else {
      m_pDict->SetAtString("V", PDF_EncodeText(opt_value));
      CPDF_Array* pI = new CPDF_Array;
      pI->AddInteger(index);
      m_pDict->SetAt("I", pI);
    }
  } else {
    CPDF_Object* pValue = FPDF_GetFieldAttr(m_pDict, "V");
    if (pValue) {
      if (GetType() == ListBox) {
        SelectOption(index, FALSE);
        if (pValue->IsString()) {
          if (pValue->GetUnicodeText() == opt_value)
            m_pDict->RemoveAt("V");
        } else if (pValue->IsArray()) {
          CPDF_Array* pArray = new CPDF_Array;
          for (int i = 0; i < CountOptions(); i++) {
            if (i != index && IsItemSelected(i)) {
              opt_value = GetOptionValue(i);
              pArray->AddString(PDF_EncodeText(opt_value));
            }
          }
          if (pArray->GetCount() < 1)
            pArray->Release();
          else
            m_pDict->SetAt("V", pArray);
        }
      } else {
        m_pDict->RemoveAt("V");
        m_pDict->RemoveAt("I");
      }
    }
  }
  if (bNotify)
    NotifyListOrComboBoxAfterChange();
  return TRUE;
}

DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,FPDF_CLIPPATH clipPath)
{
	if(!page)
		return;
	CPDF_Page* pPage = (CPDF_Page*)page;
	CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
	CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
	if(!pContentObj)
		pContentObj = pPageDic->GetArray("Contents");
	if(!pContentObj)
		return;

	CFX_ByteTextBuf strClip;
	CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
	FX_DWORD i;
	for (i = 0; i < pClipPath->GetPathCount(); i ++) {
		CPDF_Path path = pClipPath->GetPath(i);
		int iClipType = pClipPath->GetClipType(i);
		if (path.GetPointCount() == 0) {
			// Empty clipping (totally clipped out)
			strClip << "0 0 m W n ";
		} else {
			OutputPath(strClip, path);
			if (iClipType == FXFILL_WINDING)
				strClip << "W n\n";
			else
				strClip << "W* n\n";
		}
	}
	CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
	CPDF_Document* pDoc = pPage->m_pDocument;
	if(!pDoc)
		return;
	pDoc->AddIndirectObject(pStream);
	
	CPDF_Array* pContentArray = NULL;
	if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
	{
		pContentArray = (CPDF_Array*)pContentObj;
		CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
		pContentArray->InsertAt(0, pRef);
		
	}
	else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
	{
		CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
		CPDF_Object* pDirectObj = pReference->GetDirect();
		if(pDirectObj != NULL)
		{
			if(pDirectObj->GetType() == PDFOBJ_ARRAY)
			{
				pContentArray = (CPDF_Array*)pDirectObj;
				CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
				pContentArray->InsertAt(0, pRef);
				
			}
			else if(pDirectObj->GetType() == PDFOBJ_STREAM)
			{
				pContentArray = FX_NEW CPDF_Array();
				pContentArray->AddReference(pDoc,pStream->GetObjNum());
				pContentArray->AddReference(pDoc,pDirectObj->GetObjNum());
				pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray));
			}
		}
	}	
}

CPDF_Stream* CPDF_StreamParser::ReadInlineStream(CPDF_Document* pDoc, CPDF_Dictionary* pDict, CPDF_Object* pCSObj, FX_BOOL bDecode)
{
    if (m_Pos == m_Size) {
        return NULL;
    }
    if (PDF_CharType[m_pBuf[m_Pos]] == 'W') {
        m_Pos ++;
    }
    CFX_ByteString Decoder;
    CPDF_Dictionary* pParam = NULL;
    CPDF_Object* pFilter = pDict->GetElementValue(FX_BSTRC("Filter"));
    if (pFilter == NULL) {
    } else if (pFilter->GetType() == PDFOBJ_ARRAY) {
        Decoder = ((CPDF_Array*)pFilter)->GetString(0);
        CPDF_Array* pParams = pDict->GetArray(FX_BSTRC("DecodeParms"));
        if (pParams) {
            pParam = pParams->GetDict(0);
        }
    } else {
        Decoder = pFilter->GetString();
        pParam = pDict->GetDict(FX_BSTRC("DecodeParms"));
    }
    FX_DWORD width = pDict->GetInteger(FX_BSTRC("Width"));
    FX_DWORD height = pDict->GetInteger(FX_BSTRC("Height"));
    FX_DWORD OrigSize = 0;
    if (pCSObj != NULL) {
        FX_DWORD bpc = pDict->GetInteger(FX_BSTRC("BitsPerComponent"));
        FX_DWORD nComponents = 1;
        CPDF_ColorSpace* pCS = pDoc->LoadColorSpace(pCSObj);
        if (pCS == NULL) {
            nComponents = 3;
        } else {
            nComponents = pCS->CountComponents();
            pDoc->GetPageData()->ReleaseColorSpace(pCSObj);
        }
        FX_DWORD pitch = width;
        if (bpc && pitch > INT_MAX / bpc) {
            return NULL;
        }
        pitch *= bpc;
        if (nComponents && pitch > INT_MAX / nComponents) {
            return NULL;
        }
        pitch *= nComponents;
        if (pitch > INT_MAX - 7) {
            return NULL;
        }
        pitch += 7;
        pitch /= 8;
        OrigSize = pitch;
    } else {
        if (width > INT_MAX - 7) {
            return NULL;
        }
        OrigSize = ((width + 7) / 8);
    }
    if (height && OrigSize > INT_MAX / height) {
        return NULL;
    }
    OrigSize *= height;
    uint8_t* pData = NULL;
    FX_DWORD dwStreamSize;
    if (Decoder.IsEmpty()) {
        if (OrigSize > m_Size - m_Pos) {
            OrigSize = m_Size - m_Pos;
        }
        pData = FX_Alloc(uint8_t, OrigSize);
        FXSYS_memcpy(pData, m_pBuf + m_Pos, OrigSize);
        dwStreamSize = OrigSize;
        m_Pos += OrigSize;
    } else {
        FX_DWORD dwDestSize = OrigSize;
        dwStreamSize = PDF_DecodeInlineStream(m_pBuf + m_Pos, m_Size - m_Pos, width, height, Decoder, pParam,
                                              pData, dwDestSize);
        if ((int)dwStreamSize < 0) {
            return NULL;
        }
        if (bDecode) {
            m_Pos += dwStreamSize;
            dwStreamSize = dwDestSize;
            if (pFilter->GetType() == PDFOBJ_ARRAY) {
                ((CPDF_Array*)pFilter)->RemoveAt(0);
                CPDF_Array* pParams = pDict->GetArray(FX_BSTRC("DecodeParms"));
                if (pParams) {
                    pParams->RemoveAt(0);
                }
            } else {
                pDict->RemoveAt(FX_BSTRC("Filter"));
                pDict->RemoveAt(FX_BSTRC("DecodeParms"));
            }
        } else {
            if (pData) {
                FX_Free(pData);
            }
            FX_DWORD dwSavePos = m_Pos;
            m_Pos += dwStreamSize;
            while (1) {
                FX_DWORD dwPrevPos = m_Pos;
                CPDF_StreamParser::SyntaxType type = ParseNextElement();
                if (type == CPDF_StreamParser::EndOfData) {
//.........这里部分代码省略.........