C++ CPDF_Dictionary::GetDictBy方法代码示例

void CPDF_FormField::LoadDA() {
  CPDF_Dictionary* pFormDict = m_pForm->m_pFormDict;
  if (!pFormDict)
    return;

  CFX_ByteString DA;
  if (CPDF_Object* pObj = FPDF_GetFieldAttr(m_pDict, "DA"))
    DA = pObj->GetString();

  if (DA.IsEmpty())
    DA = pFormDict->GetStringBy("DA");

  if (DA.IsEmpty())
    return;

  CPDF_Dictionary* pDR = pFormDict->GetDictBy("DR");
  if (!pDR)
    return;

  CPDF_Dictionary* pFont = pDR->GetDictBy("Font");
  if (!pFont)
    return;

  CPDF_SimpleParser syntax(DA.AsStringC());
  syntax.FindTagParamFromStart("Tf", 2);
  CFX_ByteString font_name(syntax.GetWord());
  CPDF_Dictionary* pFontDict = pFont->GetDictBy(font_name);
  if (!pFontDict)
    return;

  m_pFont = m_pForm->m_pDocument->LoadFont(pFontDict);
  m_FontSize = FX_atof(syntax.GetWord());
}

CPDF_NameTree::CPDF_NameTree(CPDF_Document* pDoc,
                             const CFX_ByteString& category)
    : m_pRoot(nullptr) {
  CPDF_Dictionary* pRoot = pDoc->GetRoot();
  if (!pRoot)
    return;

  CPDF_Dictionary* pNames = pRoot->GetDictBy("Names");
  if (!pNames)
    return;

  m_pRoot = pNames->GetDictBy(category);
}

void CBA_FontMap::AddFontToAnnotDict(CPDF_Font* pFont,
                                     const CFX_ByteString& sAlias) {
  if (!pFont)
    return;

  CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictBy("AP");

  if (!pAPDict) {
    pAPDict = new CPDF_Dictionary;
    m_pAnnotDict->SetAt("AP", pAPDict);
  }

  // to avoid checkbox and radiobutton
  CPDF_Object* pObject = pAPDict->GetObjectBy(m_sAPType);
  if (ToDictionary(pObject))
    return;

  CPDF_Stream* pStream = pAPDict->GetStreamBy(m_sAPType);
  if (!pStream) {
    pStream = new CPDF_Stream(nullptr, 0, nullptr);
    int32_t objnum = m_pDocument->AddIndirectObject(pStream);
    pAPDict->SetAtReference(m_sAPType, m_pDocument, objnum);
  }

  CPDF_Dictionary* pStreamDict = pStream->GetDict();

  if (!pStreamDict) {
    pStreamDict = new CPDF_Dictionary;
    pStream->InitStream(nullptr, 0, pStreamDict);
  }

  if (pStreamDict) {
    CPDF_Dictionary* pStreamResList = pStreamDict->GetDictBy("Resources");
    if (!pStreamResList) {
      pStreamResList = new CPDF_Dictionary();
      pStreamDict->SetAt("Resources", pStreamResList);
    }

    if (pStreamResList) {
      CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDictBy("Font");
      if (!pStreamResFontList) {
        pStreamResFontList = new CPDF_Dictionary;
        int32_t objnum = m_pDocument->AddIndirectObject(pStreamResFontList);
        pStreamResList->SetAtReference("Font", m_pDocument, objnum);
      }
      if (!pStreamResFontList->KeyExist(sAlias))
        pStreamResFontList->SetAtReference(sAlias, m_pDocument,
                                           pFont->GetFontDict());
    }
  }
}

CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
                                             const CFX_ByteStringC& name,
                                             FX_BOOL bInheritable,
                                             FX_FLOAT fLevel) {
  if (fLevel > nMaxRecursion) {
    return nullptr;
  }
  if (bInheritable) {
    CPDF_Object* pAttr = GetAttr(owner, name, FALSE);
    if (pAttr) {
      return pAttr;
    }
    if (!m_pParent) {
      return nullptr;
    }
    return m_pParent->GetAttr(owner, name, TRUE, fLevel + 1);
  }
  CPDF_Object* pA = m_pDict->GetDirectObjectBy("A");
  if (pA) {
    CPDF_Dictionary* pAttrDict = FindAttrDict(pA, owner);
    if (pAttrDict) {
      CPDF_Object* pAttr = pAttrDict->GetDirectObjectBy(CFX_ByteString(name));
      if (pAttr) {
        return pAttr;
      }
    }
  }
  CPDF_Object* pC = m_pDict->GetDirectObjectBy("C");
  if (!pC)
    return nullptr;

  CPDF_Dictionary* pClassMap = m_pTree->m_pTreeRoot->GetDictBy("ClassMap");
  if (!pClassMap)
    return nullptr;

  if (CPDF_Array* pArray = pC->AsArray()) {
    for (uint32_t i = 0; i < pArray->GetCount(); i++) {
      CFX_ByteString class_name = pArray->GetStringAt(i);
      CPDF_Dictionary* pClassDict = pClassMap->GetDictBy(class_name);
      if (pClassDict && pClassDict->GetStringBy("O") == owner)
        return pClassDict->GetDirectObjectBy(CFX_ByteString(name));
    }
    return nullptr;
  }
  CFX_ByteString class_name = pC->GetString();
  CPDF_Dictionary* pClassDict = pClassMap->GetDictBy(class_name);
  if (pClassDict && pClassDict->GetStringBy("O") == owner)
    return pClassDict->GetDirectObjectBy(CFX_ByteString(name));
  return nullptr;
}

static CPDF_Dictionary* FPDFDOC_OCG_GetConfig(CPDF_Document* pDoc,
                                              const CPDF_Dictionary* pOCGDict,
                                              const CFX_ByteStringC& bsState) {
  FXSYS_assert(pDoc && pOCGDict);
  CPDF_Dictionary* pOCProperties = pDoc->GetRoot()->GetDictBy("OCProperties");
  if (!pOCProperties) {
    return NULL;
  }
  CPDF_Array* pOCGs = pOCProperties->GetArrayBy("OCGs");
  if (!pOCGs) {
    return NULL;
  }
  if (FPDFDOC_OCG_FindGroup(pOCGs, pOCGDict) < 0) {
    return NULL;
  }
  CPDF_Dictionary* pConfig = pOCProperties->GetDictBy("D");
  CPDF_Array* pConfigs = pOCProperties->GetArrayBy("Configs");
  if (pConfigs) {
    CPDF_Dictionary* pFind;
    int32_t iCount = pConfigs->GetCount();
    for (int32_t i = 0; i < iCount; i++) {
      pFind = pConfigs->GetDictAt(i);
      if (!pFind) {
        continue;
      }
      if (!FPDFDOC_OCG_HasIntent(pFind, "View", "View")) {
        continue;
      }
      pConfig = pFind;
      break;
    }
  }
  return pConfig;
}

FX_BOOL FindInterFormFont(CPDF_Dictionary* pFormDict,
                          const CPDF_Font* pFont,
                          CFX_ByteString& csNameTag) {
  if (!pFormDict || !pFont) {
    return FALSE;
  }
  CPDF_Dictionary* pDR = pFormDict->GetDictBy("DR");
  if (!pDR) {
    return FALSE;
  }
  CPDF_Dictionary* pFonts = pDR->GetDictBy("Font");
  if (!pFonts) {
    return FALSE;
  }
  for (const auto& it : *pFonts) {
    const CFX_ByteString& csKey = it.first;
    CPDF_Object* pObj = it.second;
    if (!pObj) {
      continue;
    }
    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
    if (!pElement)
      continue;
    if (pElement->GetStringBy("Type") != "Font") {
      continue;
    }
    if (pFont->GetFontDict() == pElement) {
      csNameTag = csKey;
      return TRUE;
    }
  }
  return FALSE;
}

CPDF_Font* GetInterFormFont(CPDF_Dictionary* pFormDict,
                            CPDF_Document* pDocument,
                            FX_DWORD index,
                            CFX_ByteString& csNameTag) {
  if (!pFormDict) {
    return NULL;
  }
  CPDF_Dictionary* pDR = pFormDict->GetDictBy("DR");
  if (!pDR) {
    return NULL;
  }
  CPDF_Dictionary* pFonts = pDR->GetDictBy("Font");
  if (!pFonts) {
    return NULL;
  }
  FX_DWORD dwCount = 0;
  for (const auto& it : *pFonts) {
    const CFX_ByteString& csKey = it.first;
    CPDF_Object* pObj = it.second;
    if (!pObj) {
      continue;
    }
    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
    if (!pElement)
      continue;
    if (pElement->GetStringBy("Type") != "Font")
      continue;
    if (dwCount == index) {
      csNameTag = csKey;
      return pDocument->LoadFont(pElement);
    }
    dwCount++;
  }
  return NULL;
}

DLLEXPORT void STDCALL FORM_DoPageAAction(FPDF_PAGE page,
                                          FPDF_FORMHANDLE hHandle,
                                          int aaType) {
  if (!hHandle)
    return;
  CPDFSDK_Document* pSDKDoc = ((CPDFDoc_Environment*)hHandle)->GetSDKDocument();
  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
  CPDF_Page* pPDFPage = CPDFPageFromFPDFPage(page);
  if (!pPDFPage)
    return;
  if (pSDKDoc->GetPageView(pPage, FALSE)) {
    CPDFDoc_Environment* pEnv = pSDKDoc->GetEnv();
    CPDFSDK_ActionHandler* pActionHandler = pEnv->GetActionHander();
    CPDF_Dictionary* pPageDict = pPDFPage->m_pFormDict;
    CPDF_AAction aa(pPageDict->GetDictBy("AA"));
    if (FPDFPAGE_AACTION_OPEN == aaType) {
      if (aa.ActionExist(CPDF_AAction::OpenPage)) {
        CPDF_Action action = aa.GetAction(CPDF_AAction::OpenPage);
        pActionHandler->DoAction_Page(action, CPDF_AAction::OpenPage, pSDKDoc);
      }
    } else {
      if (aa.ActionExist(CPDF_AAction::ClosePage)) {
        CPDF_Action action = aa.GetAction(CPDF_AAction::ClosePage);
        pActionHandler->DoAction_Page(action, CPDF_AAction::ClosePage, pSDKDoc);
      }
    }
  }
}

FX_DWORD CountInterFormFonts(CPDF_Dictionary* pFormDict) {
  if (!pFormDict) {
    return 0;
  }
  CPDF_Dictionary* pDR = pFormDict->GetDictBy("DR");
  if (!pDR) {
    return 0;
  }
  CPDF_Dictionary* pFonts = pDR->GetDictBy("Font");
  if (!pFonts) {
    return 0;
  }
  FX_DWORD dwCount = 0;
  for (const auto& it : *pFonts) {
    CPDF_Object* pObj = it.second;
    if (!pObj) {
      continue;
    }
    if (CPDF_Dictionary* pDirect = ToDictionary(pObj->GetDirect())) {
      if (pDirect->GetStringBy("Type") == "Font") {
        dwCount++;
      }
    }
  }
  return dwCount;
}

FX_BOOL CPDF_ViewerPreferences::PrintScaling() const {
  CPDF_Dictionary* pDict = m_pDoc->GetRoot();
  pDict = pDict->GetDictBy("ViewerPreferences");
  if (!pDict) {
    return TRUE;
  }
  return "None" != pDict->GetStringBy("PrintScaling");
}

FX_BOOL CPDF_ViewerPreferences::IsDirectionR2L() const {
  CPDF_Dictionary* pDict = m_pDoc->GetRoot();
  pDict = pDict->GetDictBy("ViewerPreferences");
  if (!pDict) {
    return FALSE;
  }
  return "R2L" == pDict->GetStringBy("Direction");
}

CFX_ByteString CPDF_ViewerPreferences::Duplex() const {
  CPDF_Dictionary* pDict = m_pDoc->GetRoot();
  pDict = pDict->GetDictBy("ViewerPreferences");
  if (!pDict) {
    return "None";
  }
  return pDict->GetStringBy("Duplex");
}

int32_t CPDF_ViewerPreferences::NumCopies() const {
  CPDF_Dictionary* pDict = m_pDoc->GetRoot();
  pDict = pDict->GetDictBy("ViewerPreferences");
  if (!pDict) {
    return 1;
  }
  return pDict->GetIntegerBy("NumCopies");
}

CPDF_Array* CPDF_ViewerPreferences::PrintPageRange() const {
  CPDF_Dictionary* pDict = m_pDoc->GetRoot();
  CPDF_Array* pRange = NULL;
  pDict = pDict->GetDictBy("ViewerPreferences");
  if (!pDict) {
    return pRange;
  }
  pRange = pDict->GetArrayBy("PrintPageRange");
  return pRange;
}

CPDF_Font* CBA_FontMap::GetAnnotDefaultFont(CFX_ByteString& sAlias) {
  CPDF_Dictionary* pAcroFormDict = nullptr;
  const bool bWidget = (m_pAnnotDict->GetStringBy("Subtype") == "Widget");
  if (bWidget) {
    if (CPDF_Dictionary* pRootDict = m_pDocument->GetRoot())
      pAcroFormDict = pRootDict->GetDictBy("AcroForm");
  }

  CFX_ByteString sDA;
  CPDF_Object* pObj = FPDF_GetFieldAttr(m_pAnnotDict, "DA");
  if (pObj)
    sDA = pObj->GetString();

  if (bWidget) {
    if (sDA.IsEmpty()) {
      pObj = FPDF_GetFieldAttr(pAcroFormDict, "DA");
      sDA = pObj ? pObj->GetString() : CFX_ByteString();
    }
  }

  CPDF_Dictionary* pFontDict = nullptr;

  if (!sDA.IsEmpty()) {
    CPDF_SimpleParser syntax(sDA.AsStringC());
    syntax.FindTagParamFromStart("Tf", 2);
    CFX_ByteString sFontName(syntax.GetWord());
    sAlias = PDF_NameDecode(sFontName).Mid(1);

    if (CPDF_Dictionary* pDRDict = m_pAnnotDict->GetDictBy("DR"))
      if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDictBy("Font"))
        pFontDict = pDRFontDict->GetDictBy(sAlias);

    if (!pFontDict)
      if (CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictBy("AP"))
        if (CPDF_Dictionary* pNormalDict = pAPDict->GetDictBy("N"))
          if (CPDF_Dictionary* pNormalResDict =
                  pNormalDict->GetDictBy("Resources"))
            if (CPDF_Dictionary* pResFontDict =
                    pNormalResDict->GetDictBy("Font"))
              pFontDict = pResFontDict->GetDictBy(sAlias);

    if (bWidget) {
      if (!pFontDict) {
        if (pAcroFormDict) {
          if (CPDF_Dictionary* pDRDict = pAcroFormDict->GetDictBy("DR"))
            if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDictBy("Font"))
              pFontDict = pDRFontDict->GetDictBy(sAlias);
        }
      }
    }
  }

  return pFontDict ? m_pDocument->LoadFont(pFontDict) : nullptr;
}