using System;

using GeoAPI.Features;

using GeoAPI.Geometries;

using GeoAPI.SpatialReference;

namespace SharpMap.SpatialReference

{

/// <summary>

/// An <see cref="IReprojector"/> implementation, that does not reproject at all

/// </summary>

public class NoopReprojector : IReprojectorCore

{

private class NoopSpatialReferenceFactory : ISpatialReferenceFactory

{

public ISpatialReference Create(string definition)

{

return new NoopSpatialReference(definition);

}

}

private struct NoopSpatialReference : ISpatialReference

{

private readonly string _definition;

public NoopSpatialReference(string definition)

{

_definition = definition;

}

object IUnique.Oid

{

get { return _definition; }

set { }

}

public string Oid { get { return _definition; } set {}}

public bool HasOidAssigned { get { return true; } }

public Type GetEntityType()

{

return GetType();

}

public string Definition { get { return _definition; } }

public SpatialReferenceDefinitionType DefinitionType { get { return SpatialReferenceDefinitionType.Unknown;} }

}

public Coordinate Reproject(Coordinate coordinate, ISpatialReference @from, ISpatialReference to)

{

return coordinate;

}

public Envelope Reproject(Envelope envelope, ISpatialReference @from, ISpatialReference to)

{

return envelope;

}

public ICoordinateSequence Reproject(ICoordinateSequence sequence, ISpatialReference @from, ISpatialReference to)

{

return sequence;

}

public ISpatialReferenceFactory Factory { get { return new NoopSpatialReferenceFactory(); } }

}

}