private static Treenode _Read(BinaryReader reader, ref int count)
{
Treenode ret = new Treenode();
count++;
ret.Flags = (Flags)reader.ReadByte();
ret.DataType = (DataType)reader.ReadByte();
if ((ret.Flags & Flags.ExtendedFlags) == Flags.ExtendedFlags) {
ret.FlagsExtended = (FlagsExtended)reader.ReadInt32();
}
int titleLength = reader.ReadInt32();
if (titleLength > 0) {
ret.Title = Encoding.ASCII.GetString(reader.ReadBytes(titleLength)).TrimEnd(Treenode.TrimChars);
}
if (ret.DataType == DataType.Float) {
double value = reader.ReadDouble();
} else if (ret.DataType == DataType.ByteBlock) {
int stringLength = reader.ReadInt32();
ret.Data = reader.ReadBytes(stringLength);
} else if (ret.DataType == DataType.Object) {
// If the node is an object then the next 4 bytes are an Int32 containing the
// number of child data nodes that it has (those accessed through the > symbol
// that is specific to objects). The next node to be read is the first of these
// which may itself have child nodes. This is how the tree is serialised.
// TODO Still don't know the purpose of this node
Treenode node = _Read(reader, ref count);
// The number of object children access with > rather then the normal +
int numChildren = reader.ReadInt32();
while (numChildren > 0) {
Treenode child = _Read(reader, ref count);
numChildren--;
ret.AddDataChild(child);
}
} else if (ret.DataType == DataType.PointerCoupling) {
int coupling = reader.ReadInt32();
} else if (ret.DataType == DataType.None || ret.DataType == DataType.Undefined) {
// Do nothing
} else {
throw new Exception("Data type was not recognised");
}
// If the HasBranch flag is set then this node is followed by an Int32 containing the
// number of child nodes that it has. The next node to be read is the first of these
// which may itself have child nodes. This is how the tree is serialised
if ((ret.Flags & Flags.HasBranch) == Flags.HasBranch) {
// TODO Still don't know the purpose of this node
Treenode node = _Read(reader, ref count);
int numChildren = reader.ReadInt32();
while (numChildren > 0) {
Treenode child = _Read(reader, ref count);
numChildren--;
ret.AddNodeChild(child);
}
}
return ret;
}
