C++ CFX_WideString::IsEmpty方法代码示例

FX_BOOL CPDF_FileSpec::GetFileName(CFX_WideString &csFileName) const
{
    if (m_pObj == NULL) {
        return FALSE;
    }
    if (m_pObj->GetType() == PDFOBJ_DICTIONARY) {
        CPDF_Dictionary* pDict = (CPDF_Dictionary*)m_pObj;
        csFileName = pDict->GetUnicodeText(FX_BSTRC("UF"));
        if (csFileName.IsEmpty()) {
            csFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("F")));
        }
        if (pDict->GetString(FX_BSTRC("FS")) == FX_BSTRC("URL")) {
            return TRUE;
        }
        if (csFileName.IsEmpty()) {
            if (pDict->KeyExist(FX_BSTRC("DOS"))) {
                csFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("DOS")));
            } else if (pDict->KeyExist(FX_BSTRC("Mac"))) {
                csFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("Mac")));
            } else if (pDict->KeyExist(FX_BSTRC("Unix"))) {
                csFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("Unix")));
            } else {
                return FALSE;
            }
        }
    } else {
        csFileName = CFX_WideString::FromLocal(m_pObj->GetString());
    }
    csFileName = FILESPEC_DecodeFileName(csFileName);
    return TRUE;
}

CFX_WideString	FPDF_FileSpec_GetWin32Path(const CPDF_Object* pFileSpec)
{
    CFX_WideString wsFileName;
    if (pFileSpec->GetType() == PDFOBJ_DICTIONARY) {
        CPDF_Dictionary* pDict = (CPDF_Dictionary*)pFileSpec;
        wsFileName = pDict->GetUnicodeText(FX_BSTRC("UF"));
        if (wsFileName.IsEmpty()) {
            wsFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("F")));
        }
        if (pDict->GetString(FX_BSTRC("FS")) == FX_BSTRC("URL")) {
            return wsFileName;
        }
        if (wsFileName.IsEmpty() && pDict->KeyExist(FX_BSTRC("DOS"))) {
            wsFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("DOS")));
        }
    } else {
        wsFileName = CFX_WideString::FromLocal(pFileSpec->GetString());
    }
    if (wsFileName[0] != '/') {
        return ChangeSlash(wsFileName);
    }
    if (wsFileName[2] == '/') {
        CFX_WideString result;
        result += wsFileName[1];
        result += ':';
        result += ChangeSlash(((FX_LPCWSTR)wsFileName) + 2);
        return result;
    } else {
        CFX_WideString result;
        result += '\\';
        result += ChangeSlash(wsFileName);
        return result;
    }
}

FX_BOOL CPDF_FileSpec::GetFileName(CFX_WideString& csFileName) const {
  if (!m_pObj) {
    return FALSE;
  }
  if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
    csFileName = pDict->GetUnicodeTextBy("UF");
    if (csFileName.IsEmpty()) {
      csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("F"));
    }
    if (pDict->GetStringBy("FS") == "URL") {
      return TRUE;
    }
    if (csFileName.IsEmpty()) {
      if (pDict->KeyExist("DOS")) {
        csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("DOS"));
      } else if (pDict->KeyExist("Mac")) {
        csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("Mac"));
      } else if (pDict->KeyExist("Unix")) {
        csFileName = CFX_WideString::FromLocal(pDict->GetStringBy("Unix"));
      } else {
        return FALSE;
      }
    }
  } else {
    csFileName = CFX_WideString::FromLocal(m_pObj->GetString());
  }
  csFileName = FILESPEC_DecodeFileName(csFileName);
  return TRUE;
}

bool CPDF_InterForm::ValidateFieldName(
    CFX_WideString& csNewFieldName,
    int iType,
    const CPDF_FormField* pExcludedField,
    const CPDF_FormControl* pExcludedControl) const {
  if (csNewFieldName.IsEmpty())
    return false;

  int iPos = 0;
  int iLength = csNewFieldName.GetLength();
  CFX_WideString csSub;
  while (true) {
    while (iPos < iLength &&
           (csNewFieldName[iPos] == L'.' || csNewFieldName[iPos] == L' ')) {
      iPos++;
    }
    if (iPos < iLength && !csSub.IsEmpty())
      csSub += L'.';
    while (iPos < iLength && csNewFieldName[iPos] != L'.')
      csSub += csNewFieldName[iPos++];
    for (int i = csSub.GetLength() - 1; i > -1; i--) {
      if (csSub[i] != L' ' && csSub[i] != L'.')
        break;

      csSub.SetAt(i, L'\0');
    }
    size_t dwCount = m_pFieldTree->m_Root.CountFields();
    for (size_t m = 0; m < dwCount; ++m) {
      CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(m);
      if (!pField)
        continue;
      if (pField == pExcludedField) {
        if (!pExcludedControl || pField->CountControls() < 2)
          continue;
      }
      CFX_WideString csFullName = pField->GetFullName();
      int iRet = CompareFieldName(csSub, csFullName);
      if (iRet == 1) {
        if (pField->GetFieldType() != iType)
          return false;
      } else if (iRet == 2 && csSub == csNewFieldName) {
        if (csFullName[iPos] == L'.')
          return false;
      } else if (iRet == 3 && csSub == csNewFieldName) {
        if (csNewFieldName[csFullName.GetLength()] == L'.')
          return false;
      }
    }
    if (iPos >= iLength)
      break;
  }
  if (csSub.IsEmpty())
    return false;

  csNewFieldName = csSub;
  return true;
}

bool CFX_WideString::Equal(const CFX_WideString& other) const {
  if (IsEmpty()) {
    return other.IsEmpty();
  }
  if (other.IsEmpty()) {
    return false;
  }
  return other.m_pData->m_nDataLength == m_pData->m_nDataLength &&
         wmemcmp(other.m_pData->m_String, m_pData->m_String,
                 m_pData->m_nDataLength) == 0;
}

CFX_WideString CPDF_CIDFont::UnicodeFromCharCode(uint32_t charcode) const {
  CFX_WideString str = CPDF_Font::UnicodeFromCharCode(charcode);
  if (!str.IsEmpty())
    return str;
  FX_WCHAR ret = GetUnicodeFromCharCode(charcode);
  return ret ? ret : CFX_WideString();
}

CFX_WideString CRF_TextPage::GetPageText(int start, int nCount ) const
{
    if(nCount == -1) {
        nCount = CountChars();
        start = 0;
    } else if(nCount < 1) {
        return L"";
    } else if(start >= CountChars()) {
        return L"";
    }
    int i, index = start + nCount;
    FPDF_CHAR_INFO info;
    CFX_WideString str;
    CFX_FloatRect recttmp;
    FX_BOOL bstart = TRUE;
    for(i = start; i < index; i++) {
        GetCharInfo(i, info);
        if(bstart) {
            recttmp = info.m_CharBox;
            str += info.m_Unicode;
            bstart = FALSE;
        } else if (_IsInsameline(recttmp, info.m_CharBox)) {
            str += info.m_Unicode;
        } else {
            str += L"\r\n";
            recttmp = info.m_CharBox;
            str += info.m_Unicode;
        }
    }
    if(str.IsEmpty()) {
        return L"";
    }
    return str;
}

void CFDE_TxtEdtBuf::SetText(const CFX_WideString& wsText) {
  ASSERT(!wsText.IsEmpty());
  Clear(FALSE);
  int32_t nTextLength = wsText.GetLength();
  int32_t nNeedCount =
      ((nTextLength - 1) / m_nChunkSize + 1) - m_Chunks.GetSize();
  int32_t i = 0;
  for (i = 0; i < nNeedCount; i++) {
    FDE_CHUNKHEADER* lpChunk =
        static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc(
            sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR)));
    lpChunk->nUsed = 0;
    m_Chunks.Add(lpChunk);
  }
  int32_t nTotalCount = m_Chunks.GetSize();
  const FX_WCHAR* lpSrcBuf = wsText.c_str();
  int32_t nLeave = nTextLength;
  int32_t nCopyedLength = m_nChunkSize;
  for (i = 0; i < nTotalCount && nLeave > 0; i++) {
    if (nLeave < nCopyedLength) {
      nCopyedLength = nLeave;
    }
    FDE_CHUNKHEADER* lpChunk = m_Chunks[i];
    FXSYS_memcpy(lpChunk->wChars, lpSrcBuf, nCopyedLength * sizeof(FX_WCHAR));
    nLeave -= nCopyedLength;
    lpSrcBuf += nCopyedLength;
    lpChunk->nUsed = nCopyedLength;
  }
  m_nTotal = nTextLength;
  m_bChanged = TRUE;
}

void CPDFSDK_BAAnnot::SetContents(const CFX_WideString& sContents) {
  if (sContents.IsEmpty())
    m_pAnnot->GetAnnotDict()->RemoveAt("Contents");
  else
    m_pAnnot->GetAnnotDict()->SetAtString("Contents",
                                          PDF_EncodeText(sContents));
}

bool CPDFSDK_ActionHandler::ExecuteDocumentPageAction(
    const CPDF_Action& action,
    CPDF_AAction::AActionType type,
    CPDFSDK_FormFillEnvironment* pFormFillEnv,
    std::set<CPDF_Dictionary*>* visited) {
  CPDF_Dictionary* pDict = action.GetDict();
  if (pdfium::ContainsKey(*visited, pDict))
    return false;

  visited->insert(pDict);

  ASSERT(pFormFillEnv);
  if (action.GetType() == CPDF_Action::JavaScript) {
    if (pFormFillEnv->IsJSInitiated()) {
      CFX_WideString swJS = action.GetJavaScript();
      if (!swJS.IsEmpty()) {
        RunDocumentPageJavaScript(pFormFillEnv, type, swJS);
      }
    }
  } else {
    DoAction_NoJs(action, pFormFillEnv);
  }

  if (!IsValidDocView(pFormFillEnv))
    return false;

  for (int32_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
    CPDF_Action subaction = action.GetSubAction(i);
    if (!ExecuteDocumentPageAction(subaction, type, pFormFillEnv, visited))
      return false;
  }

  return true;
}

size_t CPDF_InterForm::CountFields(const CFX_WideString& csFieldName) const {
  if (csFieldName.IsEmpty())
    return m_pFieldTree->m_Root.CountFields();

  CFieldTree::Node* pNode = m_pFieldTree->FindNode(csFieldName);
  return pNode ? pNode->CountFields() : 0;
}

FX_BOOL CPDFSDK_ActionHandler::ExecuteDocumentOpenAction(
    const CPDF_Action& action,
    CPDFSDK_Document* pDocument,
    CFX_PtrList& list) {
  CPDF_Dictionary* pDict = action.GetDict();
  if (list.Find(pDict))
    return FALSE;

  list.AddTail(pDict);

  CPDFDoc_Environment* pEnv = pDocument->GetEnv();
  ASSERT(pEnv);
  if (action.GetType() == CPDF_Action::JavaScript) {
    if (pEnv->IsJSInitiated()) {
      CFX_WideString swJS = action.GetJavaScript();
      if (!swJS.IsEmpty()) {
        RunDocumentOpenJavaScript(pDocument, L"", swJS);
      }
    }
  } else {
    DoAction_NoJs(action, pDocument);
  }

  for (int32_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
    CPDF_Action subaction = action.GetSubAction(i);
    if (!ExecuteDocumentOpenAction(subaction, pDocument, list))
      return FALSE;
  }

  return TRUE;
}

void CXFA_FFDocView::ShowNullTestMsg() {
  int32_t iCount = m_arrNullTestMsg.GetSize();
  CXFA_FFApp* pApp = m_pDoc->GetApp();
  IXFA_AppProvider* pAppProvider = pApp->GetAppProvider();
  if (pAppProvider && iCount) {
    int32_t iRemain = iCount > 7 ? iCount - 7 : 0;
    iCount -= iRemain;
    CFX_WideString wsMsg;
    for (int32_t i = 0; i < iCount; i++) {
      wsMsg += m_arrNullTestMsg[i] + FX_WSTRC(L"\n");
    }
    if (iRemain > 0) {
      CFX_WideString wsLimit;
      pAppProvider->LoadString(XFA_IDS_ValidateLimit, wsLimit);
      if (!wsLimit.IsEmpty()) {
        CFX_WideString wsTemp;
        wsTemp.Format((const FX_WCHAR*)wsLimit, iRemain);
        wsMsg += FX_WSTRC(L"\n") + wsTemp;
      }
    }
    CFX_WideString wsTitle;
    pAppProvider->LoadString(XFA_IDS_AppName, wsTitle);
    pAppProvider->MsgBox(wsMsg, wsTitle, XFA_MBICON_Status, XFA_MB_OK);
  }
  m_arrNullTestMsg.RemoveAll();
}

int CPDF_FormField::InsertOption(CFX_WideString csOptLabel,
                                 int index,
                                 FX_BOOL bNotify) {
  if (csOptLabel.IsEmpty())
    return -1;

  if (bNotify && !NotifyListOrComboBoxBeforeChange(csOptLabel))
    return -1;

  CFX_ByteString csStr =
      PDF_EncodeText(csOptLabel.c_str(), csOptLabel.GetLength());
  CPDF_Object* pValue = FPDF_GetFieldAttr(m_pDict, "Opt");
  CPDF_Array* pOpt = ToArray(pValue);
  if (!pOpt) {
    pOpt = new CPDF_Array;
    m_pDict->SetAt("Opt", pOpt);
  }

  int iCount = (int)pOpt->GetCount();
  if (index < 0 || index >= iCount) {
    pOpt->AddString(csStr);
    index = iCount;
  } else {
    CPDF_String* pString = new CPDF_String(csStr, FALSE);
    pOpt->InsertAt(index, pString);
  }

  if (bNotify)
    NotifyListOrComboBoxAfterChange();
  return index;
}

FX_BOOL CPDFSDK_InterForm::SubmitForm(const CFX_WideString& sDestination,
                                      FX_BOOL bUrlEncoded) {
  if (sDestination.IsEmpty())
    return FALSE;

  if (!m_pDocument || !m_pInterForm)
    return FALSE;

  CPDFSDK_Environment* pEnv = m_pDocument->GetEnv();
  CFX_WideString wsPDFFilePath = m_pDocument->GetPath();
  CFDF_Document* pFDFDoc =
      m_pInterForm->ExportToFDF(wsPDFFilePath.AsStringC(), false);
  if (!pFDFDoc)
    return FALSE;

  CFX_ByteTextBuf FdfBuffer;
  FX_BOOL bRet = pFDFDoc->WriteBuf(FdfBuffer);
  delete pFDFDoc;
  if (!bRet)
    return FALSE;

  uint8_t* pBuffer = FdfBuffer.GetBuffer();
  FX_STRSIZE nBufSize = FdfBuffer.GetLength();

  if (bUrlEncoded && !FDFToURLEncodedData(pBuffer, nBufSize))
    return FALSE;

  pEnv->JS_docSubmitForm(pBuffer, nBufSize, sDestination.c_str());

  if (bUrlEncoded)
    FX_Free(pBuffer);

  return TRUE;
}