C++ CPDF_Object::IsName方法代码示例

bool CPDF_DIBSource::LoadColorInfo(const CPDF_Dictionary* pFormResources,
                                   const CPDF_Dictionary* pPageResources) {
  m_bpc_orig = m_pDict->GetIntegerFor("BitsPerComponent");
  if (m_pDict->GetIntegerFor("ImageMask"))
    m_bImageMask = true;

  if (m_bImageMask || !m_pDict->KeyExist("ColorSpace")) {
    if (!m_bImageMask) {
      CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter");
      if (pFilter) {
        CFX_ByteString filter;
        if (pFilter->IsName()) {
          filter = pFilter->GetString();
        } else if (CPDF_Array* pArray = pFilter->AsArray()) {
          filter = pArray->GetStringAt(pArray->GetCount() - 1);
        }

        if (filter == "JPXDecode") {
          m_bDoBpcCheck = false;
          return true;
        }
      }
    }
    m_bImageMask = true;
    m_bpc = m_nComponents = 1;
    CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode");
    m_bDefaultDecode = !pDecode || !pDecode->GetIntegerAt(0);
    return true;
  }

  CPDF_Object* pCSObj = m_pDict->GetDirectObjectFor("ColorSpace");
  if (!pCSObj)
    return false;

  CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData();
  if (pFormResources)
    m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pFormResources);
  if (!m_pColorSpace)
    m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pPageResources);
  if (!m_pColorSpace)
    return false;

  m_Family = m_pColorSpace->GetFamily();
  m_nComponents = m_pColorSpace->CountComponents();
  if (m_Family == PDFCS_ICCBASED && pCSObj->IsName()) {
    CFX_ByteString cs = pCSObj->GetString();
    if (cs == "DeviceGray") {
      m_nComponents = 1;
    } else if (cs == "DeviceRGB") {
      m_nComponents = 3;
    } else if (cs == "DeviceCMYK") {
      m_nComponents = 4;
    }
  }
  ValidateDictParam();
  m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey);
  return !!m_pCompData;
}

void CPDF_StreamContentParser::Handle_SetColorPS_Stroke() {
  if (m_Options.m_bTextOnly) {
    return;
  }
  CPDF_Object* pLastParam = GetObject(0);
  if (!pLastParam) {
    return;
  }
  int nargs = m_ParamCount;
  int nvalues = nargs;
  if (pLastParam->IsName())
    nvalues--;

  FX_FLOAT* values = NULL;
  if (nvalues) {
    values = FX_Alloc(FX_FLOAT, nvalues);
    for (int i = 0; i < nvalues; i++) {
      values[i] = GetNumber(nargs - i - 1);
    }
  }
  if (nvalues != nargs) {
    CPDF_Pattern* pPattern = FindPattern(GetString(0), FALSE);
    if (pPattern) {
      m_pCurStates->m_ColorState.SetStrokePattern(pPattern, values, nvalues);
    }
  } else {
    m_pCurStates->m_ColorState.SetStrokeColor(NULL, values, nvalues);
  }
  FX_Free(values);
}

FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
  CFX_ByteString name = pArray->GetString(1);
  if (name == "None") {
    m_Type = None;
  } else {
    m_Type = Colorant;
    CPDF_Object* pAltCS = pArray->GetElementValue(2);
    if (pAltCS == m_pArray) {
      return FALSE;
    }
    m_pAltCS = Load(pDoc, pAltCS);
    if (!m_pAltCS) {
      return FALSE;
    }
    CPDF_Object* pFuncObj = pArray->GetElementValue(3);
    if (pFuncObj && !pFuncObj->IsName())
      m_pFunc = CPDF_Function::Load(pFuncObj);

    if (m_pFunc && m_pFunc->CountOutputs() < m_pAltCS->CountComponents()) {
      delete m_pFunc;
      m_pFunc = NULL;
    }
  }
  return TRUE;
}

void PDF_ReplaceAbbr(CPDF_Object* pObj) {
  switch (pObj->GetType()) {
    case PDFOBJ_DICTIONARY: {
      CPDF_Dictionary* pDict = pObj->AsDictionary();
      for (const auto& it : *pDict) {
        CFX_ByteString key = it.first;
        CPDF_Object* value = it.second;
        CFX_ByteStringC fullname = PDF_FindFullName(
            PDF_InlineKeyAbbr, FX_ArraySize(PDF_InlineKeyAbbr), key);
        if (!fullname.IsEmpty()) {
          pDict->ReplaceKey(key, fullname);
          key = fullname;
        }

        if (value->IsName()) {
          CFX_ByteString name = value->GetString();
          fullname = PDF_FindFullName(PDF_InlineValueAbbr,
                                      FX_ArraySize(PDF_InlineValueAbbr), name);
          if (!fullname.IsEmpty()) {
            pDict->SetAtName(key, fullname);
          }
        } else {
          PDF_ReplaceAbbr(value);
        }
      }
      break;
    }
    case PDFOBJ_ARRAY: {
      CPDF_Array* pArray = pObj->AsArray();
      for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
        CPDF_Object* pElement = pArray->GetElement(i);
        if (pElement->IsName()) {
          CFX_ByteString name = pElement->GetString();
          CFX_ByteStringC fullname = PDF_FindFullName(
              PDF_InlineValueAbbr, FX_ArraySize(PDF_InlineValueAbbr), name);
          if (!fullname.IsEmpty()) {
            pArray->SetAt(i, new CPDF_Name(fullname));
          }
        } else {
          PDF_ReplaceAbbr(pElement);
        }
      }
      break;
    }
  }
}

CPDF_Dest CPDF_Link::GetDest(CPDF_Document* pDoc) {
  CPDF_Object* pDest = m_pDict->GetElementValue("Dest");
  if (!pDest)
    return CPDF_Dest();

  if (pDest->IsString() || pDest->IsName()) {
    CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
    CFX_ByteStringC name = pDest->GetString();
    return CPDF_Dest(name_tree.LookupNamedDest(pDoc, name));
  }
  if (CPDF_Array* pArray = pDest->AsArray())
    return CPDF_Dest(pArray);
  return CPDF_Dest();
}

void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() {
  if (!m_Options.m_bMarkedContent) {
    return;
  }
  CFX_ByteString tag = GetString(1);
  CPDF_Object* pProperty = GetObject(0);
  if (!pProperty) {
    return;
  }
  FX_BOOL bDirect = TRUE;
  if (pProperty->IsName()) {
    pProperty = FindResourceObj("Properties", pProperty->GetString());
    if (!pProperty)
      return;
    bDirect = FALSE;
  }
  if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) {
    m_CurContentMark.GetModify()->AddMark(tag, pDict, bDirect);
  }
}

CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
  if (!m_pDict)
    return CPDF_Dest();

  CFX_ByteString type = m_pDict->GetStringFor("S");
  if (type != "GoTo" && type != "GoToR")
    return CPDF_Dest();

  CPDF_Object* pDest = m_pDict->GetDirectObjectFor("D");
  if (!pDest)
    return CPDF_Dest();
  if (pDest->IsString() || pDest->IsName()) {
    CPDF_NameTree name_tree(pDoc, "Dests");
    return CPDF_Dest(name_tree.LookupNamedDest(pDoc, pDest->GetString()));
  }
  if (CPDF_Array* pArray = pDest->AsArray())
    return CPDF_Dest(pArray);

  return CPDF_Dest();
}

bool CPDF_ImageRenderer::StartRenderDIBSource() {
  if (!m_Loader.m_pBitmap)
    return false;

  m_BitmapAlpha =
      FXSYS_round(255 * m_pImageObject->m_GeneralState.GetFillAlpha());
  m_pDIBSource = m_Loader.m_pBitmap;
  if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
      !m_Loader.m_pMask) {
    return StartBitmapAlpha();
  }
  if (m_pImageObject->m_GeneralState.GetTR()) {
    if (!m_pImageObject->m_GeneralState.GetTransferFunc()) {
      m_pImageObject->m_GeneralState.SetTransferFunc(
          m_pRenderStatus->GetTransferFunc(
              m_pImageObject->m_GeneralState.GetTR()));
    }
    if (m_pImageObject->m_GeneralState.GetTransferFunc() &&
        !m_pImageObject->m_GeneralState.GetTransferFunc()->m_bIdentity) {
      m_pDIBSource = m_Loader.m_pBitmap =
          m_pImageObject->m_GeneralState.GetTransferFunc()->TranslateImage(
              m_Loader.m_pBitmap, !m_Loader.m_bCached);
      if (m_Loader.m_bCached && m_Loader.m_pMask)
        m_Loader.m_pMask = m_Loader.m_pMask->Clone().release();
      m_Loader.m_bCached = false;
    }
  }
  m_FillArgb = 0;
  m_bPatternColor = false;
  m_pPattern = nullptr;
  if (m_pDIBSource->IsAlphaMask()) {
    const CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
    if (pColor && pColor->IsPattern()) {
      m_pPattern = pColor->GetPattern();
      if (m_pPattern)
        m_bPatternColor = true;
    }
    m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
  } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
    m_pClone = m_pDIBSource->Clone();
    m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
                                m_pRenderStatus->m_Options.m_ForeColor);
    m_pDIBSource = m_pClone.get();
  }
  m_Flags = 0;
  if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE)
    m_Flags |= RENDER_FORCE_DOWNSAMPLE;
  else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE)
    m_Flags |= RENDER_FORCE_HALFTONE;
  if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
    CPDF_Object* pFilters =
        m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectFor(
            "Filter");
    if (pFilters) {
      if (pFilters->IsName()) {
        CFX_ByteString bsDecodeType = pFilters->GetString();
        if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode")
          m_Flags |= FXRENDER_IMAGE_LOSSY;
      } else if (CPDF_Array* pArray = pFilters->AsArray()) {
        for (size_t i = 0; i < pArray->GetCount(); i++) {
          CFX_ByteString bsDecodeType = pArray->GetStringAt(i);
          if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode") {
            m_Flags |= FXRENDER_IMAGE_LOSSY;
            break;
          }
        }
      }
    }
  }
  if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH)
    m_Flags |= FXDIB_NOSMOOTH;
  else if (m_pImageObject->GetImage()->IsInterpol())
    m_Flags |= FXDIB_INTERPOL;
  if (m_Loader.m_pMask)
    return DrawMaskedImage();

  if (m_bPatternColor)
    return DrawPatternImage(m_pObj2Device);

  if (m_BitmapAlpha != 255 || !m_pImageObject->m_GeneralState ||
      !m_pImageObject->m_GeneralState.GetFillOP() ||
      m_pImageObject->m_GeneralState.GetOPMode() != 0 ||
      m_pImageObject->m_GeneralState.GetBlendType() != FXDIB_BLEND_NORMAL ||
      m_pImageObject->m_GeneralState.GetStrokeAlpha() != 1.0f ||
      m_pImageObject->m_GeneralState.GetFillAlpha() != 1.0f) {
    return StartDIBSource();
  }
  CPDF_Document* pDocument = nullptr;
  CPDF_Page* pPage = nullptr;
  if (m_pRenderStatus->m_pContext->GetPageCache()) {
    pPage = m_pRenderStatus->m_pContext->GetPageCache()->GetPage();
    pDocument = pPage->m_pDocument;
  } else {
    pDocument = m_pImageObject->GetImage()->GetDocument();
  }
  CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr;
  CPDF_Object* pCSObj =
      m_pImageObject->GetImage()->GetStream()->GetDict()->GetDirectObjectFor(
          "ColorSpace");
  CPDF_ColorSpace* pColorSpace =
//.........这里部分代码省略.........

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);
    nonstd::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pObj(
        m_pSyntax->ReadNextObject());
    if (!key.IsEmpty()) {
      FX_DWORD dwObjNum = pObj ? pObj->GetObjNum() : 0;
      if (dwObjNum)
        pDict->SetAtReference(key, m_pDocument, dwObjNum);
      else
        pDict->SetAt(key, pObj.release());
    }
  }
  _PDF_ReplaceAbbr(pDict);
  CPDF_Object* pCSObj = NULL;
  if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
    pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
    if (pCSObj->IsName()) {
      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);
        }
      }
    }
  }
  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();
    }
  }
}

FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
    if (m_Loader.m_pBitmap == NULL) {
        return FALSE;
    }
    m_BitmapAlpha = 255;
    const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
    if (pGeneralState) {
        m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
    }
    m_pDIBSource = m_Loader.m_pBitmap;
    if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
            m_Loader.m_pMask == NULL) {
        return StartBitmapAlpha();
    }
    if (pGeneralState && pGeneralState->m_pTR) {
        if (!pGeneralState->m_pTransferFunc) {
            ((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc =
                m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
        }
        if (pGeneralState->m_pTransferFunc &&
                !pGeneralState->m_pTransferFunc->m_bIdentity) {
            m_pDIBSource = m_Loader.m_pBitmap =
                               pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap,
                                       !m_Loader.m_bCached);
            if (m_Loader.m_bCached && m_Loader.m_pMask) {
                m_Loader.m_pMask = m_Loader.m_pMask->Clone();
            }
            m_Loader.m_bCached = FALSE;
        }
    }
    m_FillArgb = 0;
    m_bPatternColor = FALSE;
    m_pPattern = NULL;
    if (m_pDIBSource->IsAlphaMask()) {
        CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
        if (pColor && pColor->IsPattern()) {
            m_pPattern = pColor->GetPattern();
            if (m_pPattern != NULL) {
                m_bPatternColor = TRUE;
            }
        }
        m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
    } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
        m_pClone = m_pDIBSource->Clone();
        m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
                                    m_pRenderStatus->m_Options.m_ForeColor);
        m_pDIBSource = m_pClone;
    }
    m_Flags = 0;
    if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
        m_Flags |= RENDER_FORCE_DOWNSAMPLE;
    } else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
        m_Flags |= RENDER_FORCE_HALFTONE;
    }
    if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
        CPDF_Object* pFilters =
            m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
                FX_BSTRC("Filter"));
        if (pFilters) {
            if (pFilters->IsName()) {
                CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
                if (bsDecodeType == FX_BSTRC("DCTDecode") ||
                        bsDecodeType == FX_BSTRC("JPXDecode")) {
                    m_Flags |= FXRENDER_IMAGE_LOSSY;
                }
            } else if (CPDF_Array* pArray = pFilters->AsArray()) {
                for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
                    CFX_ByteStringC bsDecodeType = pArray->GetConstString(i);
                    if (bsDecodeType == FX_BSTRC("DCTDecode") ||
                            bsDecodeType == FX_BSTRC("JPXDecode")) {
                        m_Flags |= FXRENDER_IMAGE_LOSSY;
                        break;
                    }
                }
            }
        }
    }
    if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
        m_Flags |= FXDIB_NOSMOOTH;
    } else if (m_pImageObject->m_pImage->IsInterpol()) {
        m_Flags |= FXDIB_INTERPOL;
    }
    if (m_Loader.m_pMask) {
        return DrawMaskedImage();
    }
    if (m_bPatternColor) {
        return DrawPatternImage(m_pObj2Device);
    }
    if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
            pGeneralState->m_OPMode == 0 &&
            pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL &&
            pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
        CPDF_Document* pDocument = NULL;
        CPDF_Page* pPage = NULL;
        if (m_pRenderStatus->m_pContext->m_pPageCache) {
            pPage = m_pRenderStatus->m_pContext->m_pPageCache->GetPage();
            pDocument = pPage->m_pDocument;
        } else {
            pDocument = m_pImageObject->m_pImage->GetDocument();
        }
//.........这里部分代码省略.........

bool CPDF_CIDFont::Load() {
  if (m_pFontDict->GetStringFor("Subtype") == "TrueType") {
    LoadGB2312();
    return true;
  }

  CPDF_Array* pFonts = m_pFontDict->GetArrayFor("DescendantFonts");
  if (!pFonts || pFonts->GetCount() != 1)
    return false;

  CPDF_Dictionary* pCIDFontDict = pFonts->GetDictAt(0);
  if (!pCIDFontDict)
    return false;

  m_BaseFont = pCIDFontDict->GetStringFor("BaseFont");
  if ((m_BaseFont.Compare("CourierStd") == 0 ||
       m_BaseFont.Compare("CourierStd-Bold") == 0 ||
       m_BaseFont.Compare("CourierStd-BoldOblique") == 0 ||
       m_BaseFont.Compare("CourierStd-Oblique") == 0) &&
      !IsEmbedded()) {
    m_bAdobeCourierStd = true;
  }
  CPDF_Dictionary* pFontDesc = pCIDFontDict->GetDictFor("FontDescriptor");
  if (pFontDesc)
    LoadFontDescriptor(pFontDesc);

  CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectFor("Encoding");
  if (!pEncoding)
    return false;

  CFX_ByteString subtype = pCIDFontDict->GetStringFor("Subtype");
  m_bType1 = (subtype == "CIDFontType0");

  CPDF_CMapManager& manager = GetFontGlobals()->m_CMapManager;
  if (pEncoding->IsName()) {
    CFX_ByteString cmap = pEncoding->GetString();
    bool bPromptCJK = m_pFontFile && m_bType1;
    m_pCMap = manager.GetPredefinedCMap(cmap, bPromptCJK);
    if (!m_pCMap)
      return false;
  } else if (CPDF_Stream* pStream = pEncoding->AsStream()) {
    m_pCMap = pdfium::MakeUnique<CPDF_CMap>();
    CPDF_StreamAcc acc;
    acc.LoadAllData(pStream, false);
    m_pCMap->LoadEmbedded(acc.GetData(), acc.GetSize());
  } else {
    return false;
  }

  m_Charset = m_pCMap->m_Charset;
  if (m_Charset == CIDSET_UNKNOWN) {
    CPDF_Dictionary* pCIDInfo = pCIDFontDict->GetDictFor("CIDSystemInfo");
    if (pCIDInfo) {
      m_Charset =
          CharsetFromOrdering(pCIDInfo->GetStringFor("Ordering").AsStringC());
    }
  }
  if (m_Charset != CIDSET_UNKNOWN) {
    bool bPromptCJK = !m_pFontFile && (m_pCMap->m_Coding == CIDCODING_CID ||
                                       pCIDFontDict->KeyExist("W"));
    m_pCID2UnicodeMap = manager.GetCID2UnicodeMap(m_Charset, bPromptCJK);
  }
  if (m_Font.GetFace()) {
    if (m_bType1)
      FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE);
    else
      FT_UseCIDCharmap(m_Font.GetFace(), m_pCMap->m_Coding);
  }
  m_DefaultWidth = pCIDFontDict->GetIntegerFor("DW", 1000);
  CPDF_Array* pWidthArray = pCIDFontDict->GetArrayFor("W");
  if (pWidthArray)
    LoadMetricsArray(pWidthArray, &m_WidthList, 1);
  if (!IsEmbedded())
    LoadSubstFont();

  if (m_pFontFile || (GetSubstFont()->m_SubstFlags & FXFONT_SUBST_EXACT)) {
    CPDF_Object* pmap = pCIDFontDict->GetDirectObjectFor("CIDToGIDMap");
    if (pmap) {
      if (CPDF_Stream* pStream = pmap->AsStream()) {
        m_pStreamAcc = pdfium::MakeUnique<CPDF_StreamAcc>();
        m_pStreamAcc->LoadAllData(pStream, false);
      } else if (pmap->GetString() == "Identity") {
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
        if (m_pFontFile)
          m_bCIDIsGID = true;
#else
        m_bCIDIsGID = true;
#endif
      }
    }
  }

  CheckFontMetrics();
  if (IsVertWriting()) {
    pWidthArray = pCIDFontDict->GetArrayFor("W2");
    if (pWidthArray)
      LoadMetricsArray(pWidthArray, &m_VertMetrics, 3);
    CPDF_Array* pDefaultArray = pCIDFontDict->GetArrayFor("DW2");
    if (pDefaultArray) {
      m_DefaultVY = pDefaultArray->GetIntegerAt(0);
//.........这里部分代码省略.........

bool CPDF_CIDFont::Load() {
  if (m_pFontDict->GetStringFor("Subtype") == "TrueType") {
    LoadGB2312();
    return true;
  }

  const CPDF_Array* pFonts = m_pFontDict->GetArrayFor("DescendantFonts");
  if (!pFonts || pFonts->size() != 1)
    return false;

  const CPDF_Dictionary* pCIDFontDict = pFonts->GetDictAt(0);
  if (!pCIDFontDict)
    return false;

  m_BaseFont = pCIDFontDict->GetStringFor("BaseFont");
  if ((m_BaseFont.Compare("CourierStd") == 0 ||
       m_BaseFont.Compare("CourierStd-Bold") == 0 ||
       m_BaseFont.Compare("CourierStd-BoldOblique") == 0 ||
       m_BaseFont.Compare("CourierStd-Oblique") == 0) &&
      !IsEmbedded()) {
    m_bAdobeCourierStd = true;
  }
  const CPDF_Dictionary* pFontDesc = pCIDFontDict->GetDictFor("FontDescriptor");
  if (pFontDesc)
    LoadFontDescriptor(pFontDesc);

  CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectFor("Encoding");
  if (!pEncoding)
    return false;

  ByteString subtype = pCIDFontDict->GetStringFor("Subtype");
  m_bType1 = (subtype == "CIDFontType0");

  CPDF_CMapManager* manager = GetFontGlobals()->GetCMapManager();
  if (pEncoding->IsName()) {
    ByteString cmap = pEncoding->GetString();
    m_pCMap = manager->GetPredefinedCMap(cmap);
    if (!m_pCMap)
      return false;
  } else if (CPDF_Stream* pStream = pEncoding->AsStream()) {
    auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
    pAcc->LoadAllDataFiltered();
    m_pCMap = pdfium::MakeRetain<CPDF_CMap>();
    m_pCMap->LoadEmbedded(pAcc->GetSpan());
  } else {
    return false;
  }

  m_Charset = m_pCMap->GetCharset();
  if (m_Charset == CIDSET_UNKNOWN) {
    const CPDF_Dictionary* pCIDInfo = pCIDFontDict->GetDictFor("CIDSystemInfo");
    if (pCIDInfo) {
      m_Charset = CPDF_CMapParser::CharsetFromOrdering(
          pCIDInfo->GetStringFor("Ordering").AsStringView());
    }
  }
  if (m_Charset != CIDSET_UNKNOWN) {
    m_pCID2UnicodeMap = manager->GetCID2UnicodeMap(m_Charset);
  }
  if (m_Font.GetFace()) {
    if (m_bType1)
      FXFT_Select_Charmap(m_Font.GetFace(), FXFT_ENCODING_UNICODE);
    else
      FT_UseCIDCharmap(m_Font.GetFace(), m_pCMap->GetCoding());
  }
  m_DefaultWidth = pCIDFontDict->GetIntegerFor("DW", 1000);
  const CPDF_Array* pWidthArray = pCIDFontDict->GetArrayFor("W");
  if (pWidthArray)
    LoadMetricsArray(pWidthArray, &m_WidthList, 1);
  if (!IsEmbedded())
    LoadSubstFont();

  const CPDF_Object* pmap = pCIDFontDict->GetDirectObjectFor("CIDToGIDMap");
  if (pmap) {
    if (const CPDF_Stream* pStream = pmap->AsStream()) {
      m_pStreamAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
      m_pStreamAcc->LoadAllDataFiltered();
    } else if (m_pFontFile && pmap->GetString() == "Identity") {
      m_bCIDIsGID = true;
    }
  }

  CheckFontMetrics();
  if (IsVertWriting()) {
    pWidthArray = pCIDFontDict->GetArrayFor("W2");
    if (pWidthArray)
      LoadMetricsArray(pWidthArray, &m_VertMetrics, 3);
    const CPDF_Array* pDefaultArray = pCIDFontDict->GetArrayFor("DW2");
    if (pDefaultArray) {
      m_DefaultVY = pDefaultArray->GetIntegerAt(0);
      m_DefaultW1 = pDefaultArray->GetIntegerAt(1);
    }
  }
  return true;
}

void CPDF_AllStates::ProcessExtGS(CPDF_Dictionary* pGS,
                                  CPDF_StreamContentParser* pParser) {
  for (const auto& it : *pGS) {
    const CFX_ByteString& key_str = it.first;
    CPDF_Object* pElement = it.second.get();
    CPDF_Object* pObject = pElement ? pElement->GetDirect() : nullptr;
    if (!pObject)
      continue;

    uint32_t key = key_str.GetID();
    switch (key) {
      case FXBSTR_ID('L', 'W', 0, 0):
        m_GraphState.SetLineWidth(pObject->GetNumber());
        break;
      case FXBSTR_ID('L', 'C', 0, 0):
        m_GraphState.SetLineCap(
            static_cast<CFX_GraphStateData::LineCap>(pObject->GetInteger()));
        break;
      case FXBSTR_ID('L', 'J', 0, 0):
        m_GraphState.SetLineJoin(
            static_cast<CFX_GraphStateData::LineJoin>(pObject->GetInteger()));
        break;
      case FXBSTR_ID('M', 'L', 0, 0):
        m_GraphState.SetMiterLimit(pObject->GetNumber());
        break;
      case FXBSTR_ID('D', 0, 0, 0): {
        CPDF_Array* pDash = pObject->AsArray();
        if (!pDash)
          break;

        CPDF_Array* pArray = pDash->GetArrayAt(0);
        if (!pArray)
          break;

        SetLineDash(pArray, pDash->GetNumberAt(1), 1.0f);
        break;
      }
      case FXBSTR_ID('R', 'I', 0, 0):
        m_GeneralState.SetRenderIntent(pObject->GetString());
        break;
      case FXBSTR_ID('F', 'o', 'n', 't'): {
        CPDF_Array* pFont = pObject->AsArray();
        if (!pFont)
          break;

        m_TextState.SetFontSize(pFont->GetNumberAt(1));
        m_TextState.SetFont(pParser->FindFont(pFont->GetStringAt(0)));
        break;
      }
      case FXBSTR_ID('T', 'R', 0, 0):
        if (pGS->KeyExist("TR2")) {
          continue;
        }
      case FXBSTR_ID('T', 'R', '2', 0):
        m_GeneralState.SetTR(pObject && !pObject->IsName() ? pObject : nullptr);
        break;
      case FXBSTR_ID('B', 'M', 0, 0): {
        CPDF_Array* pArray = pObject->AsArray();
        m_GeneralState.SetBlendMode(pArray ? pArray->GetStringAt(0)
                                           : pObject->GetString());
        if (m_GeneralState.GetBlendType() > FXDIB_BLEND_MULTIPLY)
          pParser->GetPageObjectHolder()->SetBackgroundAlphaNeeded(true);
        break;
      }
      case FXBSTR_ID('S', 'M', 'a', 's'):
        if (ToDictionary(pObject)) {
          m_GeneralState.SetSoftMask(pObject);
          m_GeneralState.SetSMaskMatrix(pParser->GetCurStates()->m_CTM);
        } else {
          m_GeneralState.SetSoftMask(nullptr);
        }
        break;
      case FXBSTR_ID('C', 'A', 0, 0):
        m_GeneralState.SetStrokeAlpha(ClipFloat(pObject->GetNumber()));
        break;
      case FXBSTR_ID('c', 'a', 0, 0):
        m_GeneralState.SetFillAlpha(ClipFloat(pObject->GetNumber()));
        break;
      case FXBSTR_ID('O', 'P', 0, 0):
        m_GeneralState.SetStrokeOP(!!pObject->GetInteger());
        if (!pGS->KeyExist("op"))
          m_GeneralState.SetFillOP(!!pObject->GetInteger());
        break;
      case FXBSTR_ID('o', 'p', 0, 0):
        m_GeneralState.SetFillOP(!!pObject->GetInteger());
        break;
      case FXBSTR_ID('O', 'P', 'M', 0):
        m_GeneralState.SetOPMode(pObject->GetInteger());
        break;
      case FXBSTR_ID('B', 'G', 0, 0):
        if (pGS->KeyExist("BG2")) {
          continue;
        }
      case FXBSTR_ID('B', 'G', '2', 0):
        m_GeneralState.SetBG(pObject);
        break;
      case FXBSTR_ID('U', 'C', 'R', 0):
        if (pGS->KeyExist("UCR2")) {
          continue;
        }
//.........这里部分代码省略.........