private XlsDirectoryEntry ReadDirectoryEntry(BinaryReader reader)
{
var result = new XlsDirectoryEntry();
var name = reader.ReadBytes(64);
var nameLength = reader.ReadUInt16();
if (nameLength > 0)
{
result.EntryName = Encoding.Unicode.GetString(name, 0, nameLength).TrimEnd('\0');
}
result.EntryType = (STGTY)reader.ReadByte();
result.EntryColor = (DECOLOR)reader.ReadByte();
result.LeftSiblingSid = reader.ReadUInt32();
result.RightSiblingSid = reader.ReadUInt32();
result.ChildSid = reader.ReadUInt32();
result.ClassId = new Guid(reader.ReadBytes(16));
result.UserFlags = reader.ReadUInt32();
result.CreationTime = DateTime.FromFileTime(reader.ReadInt64());
result.LastWriteTime = DateTime.FromFileTime(reader.ReadInt64());
result.StreamFirstSector = reader.ReadUInt32();
result.StreamSize = reader.ReadUInt32();
result.PropType = reader.ReadUInt32();
result.IsEntryMiniStream = result.StreamSize < Header.MiniStreamCutoff;
return(result);
}
private byte[] ReadCompoundDocument(Stream stream)
{
var document = new XlsDocument(stream);
XlsDirectoryEntry workbookEntry = document.FindEntry(DirectoryEntryWorkbook) ?? document.FindEntry(DirectoryEntryBook);
if (workbookEntry == null)
{
throw new ExcelReaderException(Errors.ErrorStreamWorkbookNotFound);
}
if (workbookEntry.EntryType != STGTY.STGTY_STREAM)
{
throw new ExcelReaderException(Errors.ErrorWorkbookIsNotStream);
}
return(document.ReadStream(stream, workbookEntry.StreamFirstSector, (int)workbookEntry.StreamSize, workbookEntry.IsEntryMiniStream));
}
/// <summary>
/// Creates Root Directory catalog from XlsHeader
/// </summary>
/// <param name="hdr">XlsHeader object</param>
public XlsRootDirectory(XlsHeader hdr)
{
XlsStream stream = new XlsStream(hdr, hdr.RootDirectoryEntryStart, false, null);
byte[] array = stream.ReadStream();
byte[] tmp;
XlsDirectoryEntry entry;
List <XlsDirectoryEntry> entries = new List <XlsDirectoryEntry>();
for (int i = 0; i < array.Length; i += XlsDirectoryEntry.Length)
{
tmp = new byte[XlsDirectoryEntry.Length];
Buffer.BlockCopy(array, i, tmp, 0, tmp.Length);
entries.Add(new XlsDirectoryEntry(tmp, hdr));
}
m_entries = entries;
for (int i = 0; i < entries.Count; i++)
{
entry = entries[i];
//Console.WriteLine("Directory Entry:{0} type:{1}, firstsector:{2}, streamSize:{3}, isEntryMiniStream:{4}", entry.EntryName, entry.EntryType.ToString(), entry.StreamFirstSector, entry.StreamSize, entry.IsEntryMiniStream);
if (m_root == null && entry.EntryType == STGTY.STGTY_ROOT)
{
m_root = entry;
}
if (entry.ChildSid != (uint)FATMARKERS.FAT_FreeSpace)
{
entry.Child = entries[(int)entry.ChildSid];
}
if (entry.LeftSiblingSid != (uint)FATMARKERS.FAT_FreeSpace)
{
entry.LeftSibling = entries[(int)entry.LeftSiblingSid];
}
if (entry.RightSiblingSid != (uint)FATMARKERS.FAT_FreeSpace)
{
entry.RightSibling = entries[(int)entry.RightSiblingSid];
}
}
stream.CalculateMiniFat(this);
}
