public bool Insert(NxdObject nxdObject, NxdDirectory directory)
{
if (!UpdateDirectoryMetaData(directory))
{
return false;
}
SeekTo(directory);
fileStream.Seek(142 + directory.Size - nxdObject.SizeTotal, SeekOrigin.Current);
var currentPosition = fileStream.Position;
if (fileStream.Position < fileStream.Length)
{
var afterBytes = streamReader.ReadBytes((int)(fileStream.Length - fileStream.Position));
fileStream.Seek(currentPosition + nxdObject.SizeTotal, SeekOrigin.Begin);
streamWriter.Write(afterBytes);
}
fileStream.Seek(currentPosition, SeekOrigin.Begin);
NxdConvert.SerializeToStream(fileStream, nxdObject);
return true;
}
public MainWindow()
{
InitializeComponent();
currentFile = new NxdFile("test.nxd");
selectedDirectory = currentFile.RootDirectory;
//selectedDirectory.Directories.Add(new NxdDirectory() { Name = "Images" });
dgContents.ItemsSource = selectedDirectory.Contents;
twHierarchy.ItemsSource = new NxdDirectory[] { currentFile.RootDirectory };
}
public static NxdObject Deserialize(byte[] bytes)
{
Stream stream = new MemoryStream(bytes);
BinaryReader reader = new BinaryReader(stream);
var id = reader.ReadInt32();
var name = Encoding.Default.GetString(reader.ReadBytes(128).ToArray()).TrimEnd('\0');
var type = reader.ReadInt16();
var date = reader.ReadInt32();
var size = reader.ReadInt32();
NxdObject nxdObject = null;
switch (type)
{
case NxdTypes.Directory:
NxdDirectory nxdDirectory = new NxdDirectory();
var pos = stream.Position;
while (stream.Position - pos < size)
{
stream.Seek(138, SeekOrigin.Current);
var objSize = reader.ReadInt32();
stream.Seek(-142, SeekOrigin.Current);
NxdObject obj = NxdConvert.Deserialize(reader.ReadBytes(objSize + 142));
nxdDirectory.Contents.Add(obj);
}
nxdObject = nxdDirectory;
break;
default:
nxdObject = new NxdObject();
break;
}
nxdObject.Id = id;
nxdObject.Name = name;
nxdObject.Type = type;
nxdObject.Date = date;
nxdObject.Size = size;
NxdObject.NextId = id + 1;
return nxdObject;
}
public NxdFile(string filename)
{
NxdObject.NextId = 0;
Filename = filename;
fileStream = File.Open(filename, FileMode.OpenOrCreate, FileAccess.ReadWrite);
streamReader = new BinaryReader(fileStream);
streamWriter = new BinaryWriter(fileStream);
if (fileStream.Length == 0)
{
// NXD File Signature
streamWriter.Write((byte) 0x5E);
// Version number
streamWriter.Write(DefaultVersion);
RootDirectory = new NxdDirectory() {Name = "Root"};
NxdConvert.SerializeToStream(fileStream, RootDirectory);
}
else
{
if (streamReader.ReadByte() != 0x5E)
{
throw new InvalidNxdFileException();
}
/*
Get file version
*/
Version = streamReader.ReadInt16();
RootDirectory =
(NxdDirectory)
NxdConvert.Deserialize(streamReader.ReadBytes((int) (fileStream.Length - fileStream.Position)));
}
}
private void TwHierarchy_OnSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
if (twHierarchy.SelectedItem != null)
{
selectedDirectory = (NxdDirectory) twHierarchy.SelectedItem;
RefreshDataGrid();
}
}
public bool Remove(NxdObject nxdObject, NxdDirectory directory)
{
if (!UpdateDirectoryMetaData(directory))
{
return false;
}
if (!SeekTo(nxdObject))
{
return false;
}
var lastPosition = fileStream.Position;
fileStream.Seek(138, SeekOrigin.Current);
fileStream.Seek(streamReader.ReadInt32(), SeekOrigin.Current);
var afterBytes = streamReader.ReadBytes((int) (fileStream.Length - fileStream.Position));
fileStream.Seek(lastPosition, SeekOrigin.Begin);
streamWriter.Write(afterBytes);
fileStream.SetLength(fileStream.Position);
return true;
}
private bool UpdateDirectoryMetaData(NxdDirectory directory)
{
if (!SeekTo(directory))
{
return false;
}
NxdConvert.SerializeToStream(fileStream, directory);
return true;
}
