C++ ON_wString::IsNotEmpty方法代码示例

static const ONX_ErrorCounter Internal_TestFileRead(
  ON_TextLog& text_log,
  const ON_wString fullpath,
  const ON_wString text_log_path,
  bool bVerbose
  )
{
  FILE* fp = nullptr;

  fp = ON_FileStream::Open3dmToRead(fullpath);

  ONX_ErrorCounter error_counter;
  error_counter.ClearLibraryErrorsAndWarnings();

  const ON_wString path_to_print
    = (text_log_path.IsNotEmpty())
    ? text_log_path
    : fullpath;
  
  for (;;)
  {
    if (nullptr == fp)
    {
      text_log.Print(
        L"Skipped file: %ls\n",
        static_cast<const wchar_t*>(path_to_print)
      );
      error_counter.IncrementFailureCount();
      break;
    }

    text_log.Print(
      L"File name: %ls\n",
      static_cast<const wchar_t*>(path_to_print)
    );

    ON_BinaryFile source_archive(ON::archive_mode::read3dm, fp);
    source_archive.SetArchiveFullPath(fullpath);

    error_counter += Internal_TestModelRead(text_log, path_to_print, source_archive, bVerbose);
    break;
  }

  if ( nullptr != fp )
  {
    ON_FileStream::Close(fp);
    fp = nullptr;
  }

  return error_counter;
}

bool ON_3dmProperties::Write(ON_BinaryArchive& file) const
{
  bool rc = true;

  // This short chunk identifies the version of OpenNURBS that was used to write this file.
  const unsigned int version_number_to_write = ON_BinaryArchive::ArchiveOpenNURBSVersionToWrite(file.Archive3dmVersion(), ON::Version());
  rc = file.BeginWrite3dmChunk(TCODE_PROPERTIES_OPENNURBS_VERSION, version_number_to_write);
  if (rc)
    rc = file.EndWrite3dmChunk();
  if (!rc)
    return false;

  // This chunk added November 5, 2015
  const ON_wString archive_full_path
    = file.ArchiveFullPath().IsEmpty()
    ? m_3dmArchiveFullPathName
    : file.ArchiveFullPath();
  if (archive_full_path.IsNotEmpty())
  {
    if (!file.BeginWrite3dmChunk(TCODE_PROPERTIES_AS_FILE_NAME, 0))
      return false;
    rc = file.WriteString(file.ArchiveFullPath());
    if (!file.EndWrite3dmChunk())
      rc = false;
    if (!rc)
      return false;
  }


  // optional TCODE_PROPERTIES_REVISIONHISTORY chunk - file creation/revision information
  if ( rc && m_RevisionHistory.IsValid() ) {
    rc = file.BeginWrite3dmChunk(TCODE_PROPERTIES_REVISIONHISTORY,0);
    if ( rc ) {
      rc = m_RevisionHistory.Write(file);
      if ( !file.EndWrite3dmChunk() )
        rc = false;
    }
  }

  // optional TCODE_PROPERTIES_NOTES chunk - file notes
  if ( rc && m_Notes.IsValid() ) {
    rc = file.BeginWrite3dmChunk(TCODE_PROPERTIES_NOTES,0);
    if ( rc ) {
      rc = m_Notes.Write(file);
      if ( !file.EndWrite3dmChunk() )
        rc = false;
    }
  }

  //// When merging Mac code please note that the
  //// TCODE_PROPERTIES_PREVIEWIMAGE chunk is OBSOLETE.
  //// DO NOT WRITE THEM IN V6 FILES.  If performance is an
  //// issue, we will address it some other way.

  // optional TCODE_PROPERTIES_COMPRESSED_PREVIEWIMAGE chunk - bitmap preview
  if ( rc && m_PreviewImage.IsValid() && file.Save3dmPreviewImage()) 
  {
    rc = file.BeginWrite3dmChunk(TCODE_PROPERTIES_COMPRESSED_PREVIEWIMAGE,0);
    if ( rc ) 
    {
      rc = m_PreviewImage.WriteCompressed(file);
      if ( !file.EndWrite3dmChunk() )
        rc = false;
    }
  }

  // optional TCODE_PROPERTIES_APPLICATION chunk - application information
  if ( rc && m_Application.IsValid() ) 
  {
    rc = file.BeginWrite3dmChunk(TCODE_PROPERTIES_APPLICATION,0);
    if ( rc ) 
    {
      rc = m_Application.Write(file);
      if ( !file.EndWrite3dmChunk() )
        rc = false;
    }
  }

  // required TCODE_ENDOFTABLE chunk - marks end of properties table
  if ( rc ) {
    rc = file.BeginWrite3dmChunk( TCODE_ENDOFTABLE, 0 );
    if ( rc ) {
      if ( !file.EndWrite3dmChunk() )
        rc = false;
    }
  }

  return rc;
}