internal void AddLeftSiblingTree(CompoundDocumentItem e, List <CompoundDocumentItem> dirs)
{
if (e.LeftSibling > 0)
{
var c = dirs[e.LeftSibling];
if (c.Parent != null)
{
c.Parent = e.Parent;
c.Parent.Children.Insert(e.Parent.Children.IndexOf(e), c);
e._handled = true;
AddLeftSiblingTree(c, dirs);
}
}
}
private void ReadDirectory(List <byte[]> sectors, int index, List <CompoundDocumentItem> l)
{
var br = new BinaryReader(new MemoryStream(sectors[index]));
while (br.BaseStream.Position < br.BaseStream.Length)
{
var e = new CompoundDocumentItem();
e.Read(br);
if (e.ObjectType != 0)
{
l.Add(e);
}
}
}
public CompoundDocumentFile()
{
RootItem = new CompoundDocumentItem()
{
Name = "<Root>", Children = new List <CompoundDocumentItem>(), ObjectType = 5
};
minorVersion = 0x3E;
majorVersion = 3;
sectorShif = 9;
minSectorShift = 6;
_sectorSize = 1 << sectorShif;
_miniSectorSize = 1 << minSectorShift;
_sectorSizeInt = _sectorSize / 4;
}
private void GetStorageAndStreams(StoragePart storage, CompoundDocumentItem parent)
{
foreach (var item in parent.Children)
{
if (item.ObjectType == 1) //Substorage
{
var part = new StoragePart();
storage.SubStorage.Add(item.Name, part);
GetStorageAndStreams(part, item);
}
else if (item.ObjectType == 2) //Stream
{
storage.DataStreams.Add(item.Name, item.Stream);
}
}
}
private void ReadDirectory(List <byte[]> sectors, int index, List <CompoundDocumentItem> l)
{
using (var ms = RecyclableMemory.GetStream(sectors[index]))
{
var br = new BinaryReader(ms);
while (ms.Position < ms.Length)
{
var e = new CompoundDocumentItem();
e.Read(br);
if (e.ObjectType != 0)
{
l.Add(e);
}
}
}
}
private void WriteDir(BinaryWriter bw, CompoundDocumentItem entity)
{
bw.Seek(_currentDirSectorPos, SeekOrigin.Begin);
entity.Write(bw);
_currentDirSectorPos += 128;
if (_currentDirSectorPos % _sectorSize == 0)
{
if (_currentDirSectorPos == _sectorSize * 3)
{
_currentDirSectorPos = _sectorSize * 4;
}
WritePosition(bw, _currentDirSectorPos / _sectorSize - 1, ref _prevDirFATSectorPos);
if (_currentDirSectorPos == _sectorSize * 4)
{
_prevDirFATSectorPos = (int)_sectorSize + 12; //Ref sector 3 in fat sector
}
}
}
private void WriteStorageAndStreams(StoragePart storage, CompoundDocumentItem parent)
{
foreach (var item in storage.SubStorage)
{
var c = new CompoundDocumentItem()
{
Name = item.Key, ObjectType = 1, Stream = null, StreamSize = 0, Parent = parent
};
parent.Children.Add(c);
WriteStorageAndStreams(item.Value, c);
}
foreach (var item in storage.DataStreams)
{
var c = new CompoundDocumentItem()
{
Name = item.Key, ObjectType = 2, Stream = item.Value, StreamSize = (item.Value == null ? 0 : item.Value.Length), Parent = parent
};
parent.Children.Add(c);
}
}
private void CreateFATStreams(CompoundDocumentItem item, BinaryWriter bw, BinaryWriter bwMini, DocWriteInfo dwi)
{
if (item.ObjectType != 5) //Root, we must have the miniStream first.
{
if (item.StreamSize > 0)
{
item.StreamSize = item.Stream.Length;
if (item.StreamSize < _miniStreamCutoffSize)
{
item.StartingSectorLocation = WriteStream(bwMini, dwi.miniFAT, item.Stream, miniFATSectorSize);
}
else
{
item.StartingSectorLocation = WriteStream(bw, dwi.FAT, item.Stream, FATSectorSizeV3);
}
}
}
foreach (var c in item.Children)
{
CreateFATStreams(c, bw, bwMini, dwi);
}
}
private int AddChildren(CompoundDocumentItem item, List <CompoundDocumentItem> l)
{
var childId = -1;
item.ColorFlag = 1; //Always Black-No matter here, we just add nodes as a b-tree
if (item.Children.Count > 0)
{
foreach (var c in item.Children)
{
InitItem(c);
}
item.Children.Sort();
childId = SetSiblings(l.Count, item.Children, 0, item.Children.Count - 1, -1);
l.AddRange(item.Children);
foreach (var c in item.Children)
{
c.ChildID = AddChildren(c, l);
}
}
return(childId);
}
private void InitItem(CompoundDocumentItem item)
{
item.LeftSibling = -1;
item.RightSibling = -1;
item._handled = false;
}
