// Copyright (c) BruTile developers team. All rights reserved. See License.txt in the project root for license information.

using System.Reflection;

using System.Runtime.Serialization;

using BruTile;

namespace SharpMap.Utilities

{

internal class ExtentSurrogate : ISerializationSurrogate

{

[System.Serializable]

internal class ExtentRef : IObjectReference, ISerializable

{

private readonly Extent _extent;

public ExtentRef(SerializationInfo info, StreamingContext context)

{

_extent = new Extent(

info.GetDouble("minX"), info.GetDouble("minY"),

info.GetDouble("maxX"), info.GetDouble("maxY"));

}

object IObjectReference.GetRealObject(StreamingContext context)

{

return _extent;

}

void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)

{

throw new System.NotSupportedException();

}

}

#region Implementation of ISerializationSurrogate

public void GetObjectData(object obj, SerializationInfo info, StreamingContext context)

{

var ex = (Extent)obj;

info.SetType(typeof(ExtentRef));

info.AddValue("minX", ex.MinX);

info.AddValue("minY", ex.MinY);

info.AddValue("maxX", ex.MaxX);

info.AddValue("maxY", ex.MaxY);

}

public object SetObjectData(object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)

{

return null;

}

#endregion

}

}