public static CompoundDocument Create(Stream stream)
{
CompoundDocument document = new CompoundDocument(stream, new CompoundFileHeader());
document.WriteHeader();
document.MasterSectorAllocation.AllocateSATSector();
document.InitializeDirectoryEntries();
return document;
}
public MasterSectorAllocation(CompoundDocument document)
{
this.Document = document;
this.NumberOfSecIDs = document.Header.NumberOfSATSectors;
this.CurrentMSATSector = document.Header.FirstSectorIDofMasterSectorAllocationTable;
this.SecIDCapacity = document.SectorSize / 4 - 1;
InitializeMasterSectorAllocationTable();
}
public ShortSectorAllocation(CompoundDocument document)
{
this.Document = document;
ShortSectorAllocationTable = document.GetStreamDataAsIntegers(document.Header.FirstSectorIDofShortSectorAllocationTable);
//ShortSectorAllocationTable.RemoveRange(document.Header.NumberOfShortSectors, ShortSectorAllocationTable.Count - document.Header.NumberOfShortSectors);
while (ShortSectorAllocationTable.Count > 0 && ShortSectorAllocationTable[ShortSectorAllocationTable.Count - 1] == SID.Free)
{
ShortSectorAllocationTable.RemoveAt(ShortSectorAllocationTable.Count - 1);
}
}
public static CompoundDocument Open(Stream stream)
{
BinaryReader reader = new BinaryReader(stream);
FileHeader header = ReadHeader(reader);
CompoundDocument document = new CompoundDocument(stream, header);
if (!document.CheckHeader()) return null;
document.ReadDirectoryEntries();
return document;
}
public void Save()
{
if (ShortSectorAllocationTable.Count > 0)
{
if (Document.Header.FirstSectorIDofShortSectorAllocationTable == SID.EOC)
{
int SecIDCapacity = Document.SectorSize / 4;
int[] sids = new Int32[SecIDCapacity];
for (int i = 0; i < sids.Length; i++)
{
sids[i] = SID.Free;
}
Document.Header.FirstSectorIDofShortSectorAllocationTable = Document.AllocateDataSector();
Document.WriteInSector(Document.Header.FirstSectorIDofShortSectorAllocationTable, 0, sids);
}
MemoryStream satStream = new MemoryStream(ShortSectorAllocationTable.Count * 4);
CompoundDocument.WriteArrayOfInt32(new BinaryWriter(satStream), ShortSectorAllocationTable.ToArray());
Document.WriteStreamData(Document.Header.FirstSectorIDofShortSectorAllocationTable, satStream.ToArray());
}
}
public SectorAllocation(CompoundDocument document)
{
this.Document = document;
this.SecIDCapacity = document.SectorSize / 4;
}
public SectorAllocation(CompoundDocument document)
{
this.Document = document;
this.SecIDCapacity = document.SectorSize / 4;
}
public DirectoryEntry(CompoundDocument document, string name)
: this(name)
{
Document = document;
}