#region CPL License
/*
Nuclex.NAnt.Tasks
Copyright (C) 2009 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion

using System;
using System.Collections;

using NAnt.Core.Types;

namespace Nuclex.NAnt.Tasks {

  /// <summary>
  /// Enumerates the <see cref="T:NAnt.Compression.Types.FileSet" /> elements of a <see cref="T:NAnt.Compression.Types.FileSetCollection" />.
  /// </summary>
  public class FileSetEnumerator : IEnumerator {

    /// <summary>
    ///   Initializes a new instance of the
    ///   <see cref="T:NAnt.Compression.Types.FileSetEnumerator" /> class
    ///   with the specified <see cref="T:NAnt.Compression.Types.FileSetCollection" />.
    /// </summary>
    /// <param name="FileSets">The collection that should be enumerated.</param>
    internal FileSetEnumerator(FileSetCollection FileSets) {
      IEnumerable temp = FileSets;
      this._baseEnumerator = temp.GetEnumerator();
    }

    /// <summary>
    ///   Advances the enumerator to the next element of the collection.
    /// </summary>
    /// <returns>
    ///   <see langword="true" /> if the enumerator was successfully advanced 
    ///   to the next element; <see langword="false" /> if the enumerator has 
    ///   passed the end of the collection.
    /// </returns>
    public bool MoveNext() {
      return this._baseEnumerator.MoveNext();
    }

    /// <summary>Gets the current element in the collection.</summary>
    /// <returns>The current element in the collection.</returns>
    public FileSet Current {
      get {
        return (FileSet)this._baseEnumerator.Current;
      }
    }

    /// <summary>
    ///   Sets the enumerator to its initial position, which is before the 
    ///   first element in the collection.
    /// </summary>
    public void Reset() {
      this._baseEnumerator.Reset();
    }

    bool IEnumerator.MoveNext() {
      return this._baseEnumerator.MoveNext();
    }

    void IEnumerator.Reset() {
      this._baseEnumerator.Reset();
    }

    object IEnumerator.Current {
      get {
        return this._baseEnumerator.Current;
      }
    }

    private IEnumerator _baseEnumerator;
  }

} // namespace Nuclex.NAnt.Tasks