/// <summary>
/// Deserializes a scene with a style index.
/// </summary>
/// <param name="stream"></param>
/// <param name="lazy"></param>
/// <returns></returns>
public Scene2DStyledSource Deserialize(Stream stream, bool lazy = true)
{
// read index bytes.
byte[] indexSizeBytes = new byte[4];
stream.Read(indexSizeBytes, 0, 4);
int length = BitConverter.ToInt32(indexSizeBytes, 0);
// move to the index position.
RuntimeTypeModel typeModel = TypeModel.Create();
typeModel.Add(typeof(Scene2DStyledIndex), true); // the styles index.
typeModel.Add(typeof(Icon2DStyle), true);
typeModel.Add(typeof(Image2DStyle), true);
typeModel.Add(typeof(Line2DStyle), true);
typeModel.Add(typeof(Point2DStyle), true);
typeModel.Add(typeof(Polygon2DStyle), true);
typeModel.Add(typeof(Text2DStyle), true);
typeModel.Add(typeof(LineText2DStyle), true);
// deserialize the index.
byte[] indexBytes = new byte[length];
stream.Read(indexBytes, 0, length);
MemoryStream cappedStream = new MemoryStream(indexBytes);
Scene2DStyledIndex styleIndex =
typeModel.Deserialize(cappedStream, null, typeof(Scene2DStyledIndex)) as Scene2DStyledIndex;
// initialize the serializer.
Scene2DRTreeSerializer serializer = new Scene2DRTreeSerializer(true, styleIndex);
return(new Scene2DStyledSource(
serializer.Deserialize(new LimitedStream(stream), true)));
}
/// <summary>
/// Serializes a stream with a style index.
/// </summary>
/// <param name="stream"></param>
/// <param name="index"></param>
public void Serialize(Stream stream, RTreeMemoryIndex <Scene2DEntry> index)
{
Scene2DStyledIndex styleIndex = new Scene2DStyledIndex();
Scene2DRTreeSerializer serializer = new Scene2DRTreeSerializer(true, styleIndex);
// serialize the tree and fill the styleindex.
MemoryStream rTreeStream = new MemoryStream();
serializer.Serialize(rTreeStream, index);
// serialize the index.
MemoryStream indexStream = new MemoryStream();
RuntimeTypeModel typeModel = TypeModel.Create();
typeModel.Add(typeof(Scene2DStyledIndex), true);
typeModel.Add(typeof(Icon2DStyle), true);
typeModel.Add(typeof(Image2DStyle), true);
typeModel.Add(typeof(Line2DStyle), true);
typeModel.Add(typeof(Point2DStyle), true);
typeModel.Add(typeof(Polygon2DStyle), true);
typeModel.Add(typeof(Text2DStyle), true);
typeModel.Add(typeof(LineText2DStyle), true);
typeModel.Serialize(indexStream, styleIndex);
// write to the final stream.
byte[] indexSizeBytes = BitConverter.GetBytes((int)indexStream.Length);
stream.Write(indexSizeBytes, 0, indexSizeBytes.Length);
indexStream.Seek(0, SeekOrigin.Begin);
indexStream.WriteTo(stream);
rTreeStream.WriteTo(stream);
indexStream.Dispose();
rTreeStream.Dispose();
}
