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source: branches/OptimizationNetworks/HeuristicLab.Optimization.Networks/3.3/Port.cs @ 11401

Last change on this file since 11401 was 11401, checked in by swagner, 8 years ago

#2205: Worked on basic infrastructure for optimization networks

File size: 3.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
25using System;
26using System.Drawing;
27
28namespace HeuristicLab.Optimization.Networks {
29  [Item("Port", "Abstract base class for ports of an optimization network node.")]
30  [StorableClass]
31  public abstract class Port<T> : NamedItem, IPort<T> where T : class, IItem {
32    public static new Image StaticItemImage {
33      get { return HeuristicLab.Common.Resources.VSImageLibrary.Field; }
34    }
35
36    [Storable]
37    protected T value;
38    public virtual T Value {
39      get { return value; }
40      protected set {
41        if (value != this.value) {
42          DeregisterValueEvents();
43          this.value = value;
44          RegisterValueEvents();
45          OnValueChanged();
46        }
47      }
48    }
49    object IPort.Value {
50      get { return Value; }
51    }
52
53    [StorableConstructor]
54    protected Port(bool deserializing) : base(deserializing) { }
55    protected Port(Port<T> original, Cloner cloner)
56      : base(original, cloner) {
57      value = cloner.Clone(original.value);
58      RegisterValueEvents();
59    }
60    protected Port() : base("Port") { }
61    protected Port(string name) : base(name) { }
62    protected Port(string name, string description) : base(name, description) { }
63
64    [StorableHook(HookType.AfterDeserialization)]
65    private void AfterDeserialization() {
66      RegisterValueEvents();
67    }
68
69    public override string ToString() {
70      return Name + ": " + (Value != null ? Value.ToString() : "null");
71    }
72
73    public event EventHandler ValueChanged;
74    protected virtual void OnValueChanged() {
75      EventHandler handler = ValueChanged;
76      if (handler != null) handler(this, EventArgs.Empty);
77      OnToStringChanged();
78    }
79
80    protected virtual void RegisterValueEvents() {
81      if (value != null) {
82        value.ToStringChanged += new EventHandler(Value_ToStringChanged);
83      }
84    }
85    protected virtual void DeregisterValueEvents() {
86      if (value != null) {
87        value.ToStringChanged -= new EventHandler(Value_ToStringChanged);
88      }
89    }
90    private void Value_ToStringChanged(object sender, EventArgs e) {
91      OnToStringChanged();
92    }
93  }
94}
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