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source: trunk/sources/HeuristicLab.Parameters/3.3/ConstrainedValueParameter.cs @ 3341

Last change on this file since 3341 was 3341, checked in by swagner, 14 years ago

Implemented reviewers' comments (#893).

File size: 2.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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 System;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Core;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Parameters {
29  /// <summary>
30  /// A parameter whose value has to be chosen from a set of valid values.
31  /// </summary>
32  [Item("ConstrainedValueParameter<T>", "A parameter whose value has to be chosen from a set of valid values.")]
33  [StorableClass]
34  public class ConstrainedValueParameter<T> : OptionalConstrainedValueParameter<T> where T : class, IItem {
35    public override T Value {
36      get { return base.Value; }
37      set {
38        if ((value == null) && (ValidValues.Count > 0)) throw new ArgumentNullException();
39        base.Value = value;
40      }
41    }
42
43    public ConstrainedValueParameter() : base() { }
44    public ConstrainedValueParameter(string name) : base(name) { }
45    public ConstrainedValueParameter(string name, ItemSet<T> validValues) : base(name, validValues) { }
46    public ConstrainedValueParameter(string name, ItemSet<T> validValues, T value) : base(name, validValues, value) { }
47    public ConstrainedValueParameter(string name, string description) : base(name, description) { }
48    public ConstrainedValueParameter(string name, string description, ItemSet<T> validValues) : base(name, description, validValues) { }
49    public ConstrainedValueParameter(string name, string description, ItemSet<T> validValues, T value) : base(name, description, validValues, value) { }
50
51    protected override void ValidValues_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
52      if (Value == null) Value = ValidValues.First();
53    }
54    protected override void ValidValues_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
55      if ((Value != null) && !ValidValues.Contains(Value)) Value = ValidValues.FirstOrDefault();
56    }
57    protected override void ValidValues_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
58      if ((Value != null) && !ValidValues.Contains(Value)) Value = ValidValues.FirstOrDefault();
59    }
60  }
61}
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