source: branches/OptimizationNetworks/HeuristicLab.Core/3.3/Networks/Network.cs @ 11577

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using HeuristicLab.Common;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;

namespace HeuristicLab.Core.Networks {
  [Item("Network", "Abstract base class for networks.")]
  [StorableClass]
  public abstract class Network : Node, INetwork, IStorableContent {
    public string Filename { get; set; }

    public static new Image StaticItemImage {
      get { return HeuristicLab.Common.Resources.VSImageLibrary.Module; }
    }

    public override IEnumerable<INetworkItem> Children {
      get { return base.Children.Concat(Nodes.AsEnumerable<INetworkItem>()); }
    }

    [Storable]
    private NodeCollection nodes;
    protected NodeCollection Nodes {
      get { return nodes; }
    }
    private ReadOnlyKeyedItemCollection<string, INode> readOnlyNodes;
    IKeyedItemCollection<string, INode> INetwork.Nodes {
      get {
        if (readOnlyNodes == null) readOnlyNodes = nodes.AsReadOnly();
        return readOnlyNodes;
      }
    }

    [StorableConstructor]
    protected Network(bool deserializing) : base(deserializing) { }
    protected Network(Network original, Cloner cloner)
      : base(original, cloner) {
      nodes = cloner.Clone(original.nodes);
      foreach (var n in Nodes)
        n.Parent = this;
      readOnlyNodes = null;
      RegisterNodesEvents();
    }
    protected Network()
      : base("Network") {
      nodes = new NodeCollection();
      readOnlyNodes = null;
      RegisterNodesEvents();
    }
    protected Network(string name)
      : base(name) {
      nodes = new NodeCollection();
      readOnlyNodes = null;
      RegisterNodesEvents();
    }
    protected Network(string name, string description)
      : base(name, description) {
      nodes = new NodeCollection();
      readOnlyNodes = null;
      RegisterNodesEvents();
    }

    [StorableHook(HookType.AfterDeserialization)]
    private void AfterDeserialization() {
      foreach (var n in Nodes)
        n.Parent = this;
      RegisterNodesEvents();
    }

    #region Nodes Events
    protected virtual void RegisterNodesEvents() {
      nodes.ItemsAdded += Nodes_ItemsAdded;
      nodes.ItemsRemoved += Nodes_ItemsRemoved;
      nodes.ItemsReplaced += Nodes_ItemsReplaced;
      nodes.CollectionReset += Nodes_CollectionReset;
    }
    protected virtual void Nodes_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<INode> e) {
      foreach (var n in e.Items)
        n.Parent = this;
    }
    protected virtual void Nodes_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<INode> e) {
      foreach (var n in e.Items)
        n.Parent = null;
    }
    protected virtual void Nodes_ItemsReplaced(object sender, Collections.CollectionItemsChangedEventArgs<INode> e) {
      foreach (var n in e.OldItems)
        n.Parent = null;
      foreach (var n in e.Items)
        n.Parent = this;
    }
    protected virtual void Nodes_CollectionReset(object sender, Collections.CollectionItemsChangedEventArgs<INode> e) {
      foreach (var n in e.OldItems)
        n.Parent = null;
      foreach (var n in e.Items)
        n.Parent = this;
    }
    #endregion
  }
}