C++ CPDF_Path类代码示例

CPDF_ContentParser::Stage CPDF_ContentParser::CheckClip() {
  if (m_pType3Char) {
    m_pType3Char->InitializeFromStreamData(m_pParser->IsColored(),
                                           m_pParser->GetType3Data());
  }

  for (auto& pObj : *m_pObjectHolder->GetPageObjectList()) {
    if (!pObj->m_ClipPath.HasRef())
      continue;
    if (pObj->m_ClipPath.GetPathCount() != 1)
      continue;
    if (pObj->m_ClipPath.GetTextCount() > 0)
      continue;

    CPDF_Path ClipPath = pObj->m_ClipPath.GetPath(0);
    if (!ClipPath.IsRect() || pObj->IsShading())
      continue;

    CFX_PointF point0 = ClipPath.GetPoint(0);
    CFX_PointF point2 = ClipPath.GetPoint(2);
    CFX_FloatRect old_rect(point0.x, point0.y, point2.x, point2.y);
    if (old_rect.Contains(pObj->GetRect()))
      pObj->m_ClipPath.SetNull();
  }
  return Stage::kComplete;
}

DLLEXPORT FPDF_CLIPPATH STDCALL FPDF_CreateClipPath(float left, float bottom, float right, float top)
{
	CPDF_ClipPath* pNewClipPath =  FX_NEW CPDF_ClipPath();
	pNewClipPath->GetModify();
	CPDF_Path Path;
	Path.GetModify();
	Path.AppendRect(left, bottom, right, top);
	pNewClipPath->AppendPath(Path, FXFILL_ALTERNATE, FALSE);
	return pNewClipPath;
}

DLLEXPORT FPDF_CLIPPATH STDCALL FPDF_CreateClipPath(float left,
                                                    float bottom,
                                                    float right,
                                                    float top) {
  CPDF_Path Path;
  Path.AppendRect(left, bottom, right, top);

  CPDF_ClipPath* pNewClipPath = new CPDF_ClipPath();
  pNewClipPath->AppendPath(Path, FXFILL_ALTERNATE, false);
  return pNewClipPath;
}

void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
  if (!m_Options.m_bSeparateForm) {
    CPDF_Dictionary* pResources = pStream->GetDict()->GetDict("Resources");
    CFX_Matrix form_matrix = pStream->GetDict()->GetMatrix("Matrix");
    form_matrix.Concat(m_pCurStates->m_CTM);
    CPDF_Array* pBBox = pStream->GetDict()->GetArray("BBox");
    CFX_FloatRect form_bbox;
    CPDF_Path ClipPath;
    if (pBBox) {
      form_bbox = pStream->GetDict()->GetRect("BBox");
      ClipPath.New();
      ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
                          form_bbox.top);
      ClipPath.Transform(&form_matrix);
      form_bbox.Transform(&form_matrix);
    }
    CPDF_StreamContentParser parser(m_pDocument, m_pPageResources, m_pResources,
                                    &m_mtContentToUser, m_pObjectList,
                                    pResources, &form_bbox, &m_Options,
                                    m_pCurStates.get(), m_Level + 1);
    parser.m_pCurStates->m_CTM = form_matrix;
    if (ClipPath.NotNull()) {
      parser.m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
                                                 TRUE);
    }
    CPDF_StreamAcc stream;
    stream.LoadAllData(pStream, FALSE);
    if (stream.GetSize() == 0) {
      return;
    }
    parser.Parse(stream.GetData(), stream.GetSize(), 0);
    return;
  }
  CPDF_FormObject* pFormObj = new CPDF_FormObject;
  pFormObj->m_pForm =
      new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources);
  pFormObj->m_FormMatrix = m_pCurStates->m_CTM;
  pFormObj->m_FormMatrix.Concat(m_mtContentToUser);
  CPDF_AllStates status;
  status.m_GeneralState = m_pCurStates->m_GeneralState;
  status.m_GraphState = m_pCurStates->m_GraphState;
  status.m_ColorState = m_pCurStates->m_ColorState;
  status.m_TextState = m_pCurStates->m_TextState;
  pFormObj->m_pForm->ParseContent(&status, NULL, NULL, &m_Options, m_Level + 1);
  if (!m_pObjectList->m_bBackgroundAlphaNeeded &&
      pFormObj->m_pForm->m_bBackgroundAlphaNeeded) {
    m_pObjectList->m_bBackgroundAlphaNeeded = TRUE;
  }
  pFormObj->CalcBoundingBox();
  SetGraphicStates(pFormObj, TRUE, TRUE, TRUE);
  m_pObjectList->m_ObjectList.AddTail(pFormObj);
}

void CPDF_ContentParser::Start(CPDF_Form* pForm,
                               CPDF_AllStates* pGraphicStates,
                               const CFX_Matrix* pParentMatrix,
                               CPDF_Type3Char* pType3Char,
                               int level) {
  m_pType3Char = pType3Char;
  m_pObjectHolder = pForm;
  m_bForm = true;
  CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrixFor("Matrix");
  if (pGraphicStates)
    form_matrix.Concat(pGraphicStates->m_CTM);
  CPDF_Array* pBBox = pForm->m_pFormDict->GetArrayFor("BBox");
  CFX_FloatRect form_bbox;
  CPDF_Path ClipPath;
  if (pBBox) {
    form_bbox = pBBox->GetRect();
    ClipPath.Emplace();
    ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
                        form_bbox.top);
    ClipPath.Transform(&form_matrix);
    if (pParentMatrix)
      ClipPath.Transform(pParentMatrix);
    form_bbox.Transform(&form_matrix);
    if (pParentMatrix)
      form_bbox.Transform(pParentMatrix);
  }
  CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDictFor("Resources");
  m_pParser.reset(new CPDF_StreamContentParser(
      pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources,
      pParentMatrix, pForm, pResources, &form_bbox, pGraphicStates, level));
  m_pParser->GetCurStates()->m_CTM = form_matrix;
  m_pParser->GetCurStates()->m_ParentMatrix = form_matrix;
  if (ClipPath) {
    m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
                                                     true);
  }
  if (pForm->m_Transparency & PDFTRANS_GROUP) {
    CPDF_GeneralState* pState = &m_pParser->GetCurStates()->m_GeneralState;
    pState->SetBlendType(FXDIB_BLEND_NORMAL);
    pState->SetStrokeAlpha(1.0f);
    pState->SetFillAlpha(1.0f);
    pState->SetSoftMask(nullptr);
  }
  m_nStreams = 0;
  m_pSingleStream.reset(new CPDF_StreamAcc);
  m_pSingleStream->LoadAllData(pForm->m_pFormStream, false);
  m_pData = (uint8_t*)m_pSingleStream->GetData();
  m_Size = m_pSingleStream->GetSize();
  m_Status = ToBeContinued;
  m_InternalStage = STAGE_PARSE;
  m_CurrentOffset = 0;
}

FPDF_EXPORT FPDF_CLIPPATH FPDF_CALLCONV FPDF_CreateClipPath(float left,
                                                            float bottom,
                                                            float right,
                                                            float top) {
  CPDF_Path Path;
  Path.AppendRect(left, bottom, right, top);

  auto pNewClipPath = pdfium::MakeUnique<CPDF_ClipPath>();
  pNewClipPath->AppendPath(Path, FXFILL_ALTERNATE, false);

  // Caller takes ownership.
  return FPDFClipPathFromCPDFClipPath(pNewClipPath.release());
}

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

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

  std::ostringstream strClip;
  CPDF_ClipPath* pClipPath = CPDFClipPathFromFPDFClipPath(clipPath);
  for (size_t i = 0; i < pClipPath->GetPathCount(); ++i) {
    CPDF_Path path = pClipPath->GetPath(i);
    if (path.GetPoints().empty()) {
      // Empty clipping (totally clipped out)
      strClip << "0 0 m W n ";
    } else {
      OutputPath(strClip, path);
      if (pClipPath->GetClipType(i) == FXFILL_WINDING)
        strClip << "W n\n";
      else
        strClip << "W* n\n";
    }
  }
  CPDF_Document* pDoc = pPage->GetDocument();
  if (!pDoc)
    return;

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

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

void CPDF_StreamContentParser::AddPathObject(int FillType, FX_BOOL bStroke) {
  int PathPointCount = m_PathPointCount, PathClipType = m_PathClipType;
  m_PathPointCount = 0;
  m_PathClipType = 0;
  if (PathPointCount <= 1) {
    if (PathPointCount && PathClipType) {
      CPDF_Path path;
      path.New()->AppendRect(0, 0, 0, 0);
      m_pCurStates->m_ClipPath.AppendPath(path, FXFILL_WINDING, TRUE);
    }
    return;
  }
  if (PathPointCount &&
      m_pPathPoints[PathPointCount - 1].m_Flag == FXPT_MOVETO) {
    PathPointCount--;
  }
  CPDF_Path Path;
  CFX_PathData* pPathData = Path.New();
  pPathData->SetPointCount(PathPointCount);
  FXSYS_memcpy(pPathData->GetPoints(), m_pPathPoints,
               sizeof(FX_PATHPOINT) * PathPointCount);
  CFX_Matrix matrix = m_pCurStates->m_CTM;
  matrix.Concat(m_mtContentToUser);
  if (bStroke || FillType) {
    CPDF_PathObject* pPathObj = new CPDF_PathObject;
    pPathObj->m_bStroke = bStroke;
    pPathObj->m_FillType = FillType;
    pPathObj->m_Path = Path;
    pPathObj->m_Matrix = matrix;
    SetGraphicStates(pPathObj, TRUE, FALSE, TRUE);
    pPathObj->CalcBoundingBox();
    m_pObjectList->m_ObjectList.AddTail(pPathObj);
  }
  if (PathClipType) {
    if (!matrix.IsIdentity()) {
      Path.Transform(&matrix);
      matrix.SetIdentity();
    }
    m_pCurStates->m_ClipPath.AppendPath(Path, PathClipType, TRUE);
  }
}

void CPDF_ClipPath::AppendPath(CPDF_Path path, uint8_t type, bool bAutoMerge) {
  PathData* pData = m_Ref.GetPrivateCopy();
  if (!pData->m_PathAndTypeList.empty() && bAutoMerge) {
    const CPDF_Path& old_path = pData->m_PathAndTypeList.back().first;
    if (old_path.IsRect()) {
      CFX_FloatRect old_rect(old_path.GetPointX(0), old_path.GetPointY(0),
                             old_path.GetPointX(2), old_path.GetPointY(2));
      CFX_FloatRect new_rect = path.GetBoundingBox();
      if (old_rect.Contains(new_rect))
        pData->m_PathAndTypeList.pop_back();
    }
  }
  pData->m_PathAndTypeList.push_back(std::make_pair(path, type));
}

void OutputPath(CFX_ByteTextBuf& buf, CPDF_Path path) {
  const CFX_PathData* pPathData = path.GetObject();
  if (!pPathData)
    return;

  FX_PATHPOINT* pPoints = pPathData->GetPoints();

  if (path.IsRect()) {
    buf << (pPoints[0].m_PointX) << " " << (pPoints[0].m_PointY) << " "
        << (pPoints[2].m_PointX - pPoints[0].m_PointX) << " "
        << (pPoints[2].m_PointY - pPoints[0].m_PointY) << " re\n";
    return;
  }

  CFX_ByteString temp;
  for (int i = 0; i < pPathData->GetPointCount(); i++) {
    buf << (pPoints[i].m_PointX) << " " << (pPoints[i].m_PointY);
    int point_type = pPoints[i].m_Flag & FXPT_TYPE;
    if (point_type == FXPT_MOVETO) {
      buf << " m\n";
    } else if (point_type == FXPT_BEZIERTO) {
      buf << " " << (pPoints[i + 1].m_PointX) << " "
          << (pPoints[i + 1].m_PointY) << " " << (pPoints[i + 2].m_PointX)
          << " " << (pPoints[i + 2].m_PointY);
      if (pPoints[i + 2].m_Flag & FXPT_CLOSEFIGURE)
        buf << " c h\n";
      else
        buf << " c\n";
      i += 2;
    } else if (point_type == FXPT_LINETO) {
      if (pPoints[i].m_Flag & FXPT_CLOSEFIGURE)
        buf << " l h\n";
      else
        buf << " l\n";
    }
  }
}

void OutputPath(std::ostringstream& buf, CPDF_Path path) {
  const CFX_PathData* pPathData = path.GetObject();
  if (!pPathData)
    return;

  const std::vector<FX_PATHPOINT>& pPoints = pPathData->GetPoints();
  if (path.IsRect()) {
    CFX_PointF diff = pPoints[2].m_Point - pPoints[0].m_Point;
    buf << pPoints[0].m_Point.x << " " << pPoints[0].m_Point.y << " " << diff.x
        << " " << diff.y << " re\n";
    return;
  }

  ByteString temp;
  for (size_t i = 0; i < pPoints.size(); i++) {
    buf << pPoints[i].m_Point.x << " " << pPoints[i].m_Point.y;
    FXPT_TYPE point_type = pPoints[i].m_Type;
    if (point_type == FXPT_TYPE::MoveTo) {
      buf << " m\n";
    } else if (point_type == FXPT_TYPE::BezierTo) {
      buf << " " << pPoints[i + 1].m_Point.x << " " << pPoints[i + 1].m_Point.y
          << " " << pPoints[i + 2].m_Point.x << " " << pPoints[i + 2].m_Point.y;
      buf << " c";
      if (pPoints[i + 2].m_CloseFigure)
        buf << " h";
      buf << "\n";

      i += 2;
    } else if (point_type == FXPT_TYPE::LineTo) {
      buf << " l";
      if (pPoints[i].m_CloseFigure)
        buf << " h";
      buf << "\n";
    }
  }
}

CPDF_ContentParser::CPDF_ContentParser(CPDF_Form* pForm,
                                       CPDF_AllStates* pGraphicStates,
                                       const CFX_Matrix* pParentMatrix,
                                       CPDF_Type3Char* pType3Char,
                                       std::set<const uint8_t*>* parsedSet)
    : m_CurrentStage(Stage::kParse),
      m_pObjectHolder(pForm),
      m_pType3Char(pType3Char) {
  ASSERT(pForm);
  CFX_Matrix form_matrix = pForm->GetDict()->GetMatrixFor("Matrix");
  if (pGraphicStates)
    form_matrix.Concat(pGraphicStates->m_CTM);

  CPDF_Array* pBBox = pForm->GetDict()->GetArrayFor("BBox");
  CFX_FloatRect form_bbox;
  CPDF_Path ClipPath;
  if (pBBox) {
    form_bbox = pBBox->GetRect();
    ClipPath.Emplace();
    ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
                        form_bbox.top);
    ClipPath.Transform(form_matrix);
    if (pParentMatrix)
      ClipPath.Transform(*pParentMatrix);

    form_bbox = form_matrix.TransformRect(form_bbox);
    if (pParentMatrix)
      form_bbox = pParentMatrix->TransformRect(form_bbox);
  }

  CPDF_Dictionary* pResources = pForm->GetDict()->GetDictFor("Resources");
  m_pParser = pdfium::MakeUnique<CPDF_StreamContentParser>(
      pForm->GetDocument(), pForm->m_pPageResources.Get(),
      pForm->m_pResources.Get(), pParentMatrix, pForm, pResources, form_bbox,
      pGraphicStates, parsedSet);
  m_pParser->GetCurStates()->m_CTM = form_matrix;
  m_pParser->GetCurStates()->m_ParentMatrix = form_matrix;
  if (ClipPath.HasRef()) {
    m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
                                                     true);
  }
  if (pForm->GetTransparency().IsGroup()) {
    CPDF_GeneralState* pState = &m_pParser->GetCurStates()->m_GeneralState;
    pState->SetBlendType(BlendMode::kNormal);
    pState->SetStrokeAlpha(1.0f);
    pState->SetFillAlpha(1.0f);
    pState->SetSoftMask(nullptr);
  }
  m_pSingleStream = pdfium::MakeRetain<CPDF_StreamAcc>(pForm->GetStream());
  m_pSingleStream->LoadAllDataFiltered();
  m_pData.Reset(m_pSingleStream->GetData());
  m_Size = m_pSingleStream->GetSize();
}

void CPDF_ContentParser::Start(CPDF_Form* pForm, CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
                               CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
{
    m_pType3Char = pType3Char;
    m_pObjects = pForm;
    m_bForm = TRUE;
    CFX_AffineMatrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix"));
    if (pGraphicStates) {
        form_matrix.Concat(pGraphicStates->m_CTM);
    }
    CPDF_Array* pBBox = pForm->m_pFormDict->GetArray(FX_BSTRC("BBox"));
    CFX_FloatRect form_bbox;
    CPDF_Path ClipPath;
    if (pBBox) {
        form_bbox = pBBox->GetRect();
        ClipPath.New();
        ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right, form_bbox.top);
        ClipPath.Transform(&form_matrix);
        if (pParentMatrix) {
            ClipPath.Transform(pParentMatrix);
        }
        form_bbox.Transform(&form_matrix);
    }
    CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
    m_pParser = FX_NEW CPDF_StreamContentParser;
    m_pParser->Initialize();
    m_pParser->PrepareParse(pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources, pParentMatrix, pForm,
                            pResources, &form_bbox, pOptions, pGraphicStates, level);
    m_pParser->m_pCurStates->m_CTM = form_matrix;
    if (ClipPath.NotNull()) {
        m_pParser->m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE);
    }
    if (pForm->m_Transparency & PDFTRANS_GROUP) {
        CPDF_GeneralStateData* pData = m_pParser->m_pCurStates->m_GeneralState.GetModify();
        pData->m_BlendType = FXDIB_BLEND_NORMAL;
        pData->m_StrokeAlpha = 1.0f;
        pData->m_FillAlpha = 1.0f;
        pData->m_pSoftMask = NULL;
    }
    m_pStreamFilter = pForm->m_pFormStream->GetStreamFilter();
    m_nStreams = 1;
    m_Status = ToBeContinued;
    m_InternalStage = PAGEPARSE_STAGE_PARSE;
    m_CurrentOffset = 0;
}

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));
			}
		}
	}	
}

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));
      }
    }
  }
}