source: branches/2994-AutoDiffForIntervals/HeuristicLab.Data/3.3/ValueTypeValue.cs @ 17209

Last change on this file since 17209 was 17209, checked in by gkronber, 2 months ago

#2994: merged r17132:17198 from trunk to branch

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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.Drawing;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HEAL.Attic;
27
28namespace HeuristicLab.Data {
29  [Item("ValueTypeValue", "An abstract base class for representing values of value types.")]
30  [StorableType("A78FF29D-A796-463F-A93F-2528A382D99E")]
31  public abstract class ValueTypeValue<T> : Item where T : struct {
32    public static new Image StaticItemImage {
33      get { return HeuristicLab.Common.Resources.VSImageLibrary.ValueType; }
34    }
35
36    [Storable]
37    protected T value;
38    public virtual T Value {
39      get { return value; }
40      set {
41        if (ReadOnly) throw new NotSupportedException("Value cannot be set. ValueTypeValue is read-only.");
42        if (!value.Equals(this.value)) {
43          this.value = value;
44          OnValueChanged();
45        }
46      }
47    }
48
49    [Storable]
50    protected bool readOnly;
51    public virtual bool ReadOnly {
52      get { return readOnly; }
53    }
54
55    [StorableConstructor]
56    protected ValueTypeValue(StorableConstructorFlag _) : base(_) { }
57    protected ValueTypeValue(ValueTypeValue<T> original, Cloner cloner)
58      : base(original, cloner) {
59      this.value = original.value;
60      this.readOnly = original.readOnly;
61    }
62    protected ValueTypeValue() {
63      this.value = default(T);
64      this.readOnly = false;
65    }
66    protected ValueTypeValue(T value) {
67      this.value = value;
68      this.readOnly = false;
69    }
70
71    public virtual ValueTypeValue<T> AsReadOnly() {
72      ValueTypeValue<T> readOnlyValueTypeValue = (ValueTypeValue<T>)this.Clone();
73      readOnlyValueTypeValue.readOnly = true;
74      return readOnlyValueTypeValue;
75    }
76
77    public override string ToString() {
78      return value.ToString();
79    }
80
81    public event EventHandler ValueChanged;
82    protected virtual void OnValueChanged() {
83      if (ValueChanged != null)
84        ValueChanged(this, EventArgs.Empty);
85      OnToStringChanged();
86    }
87  }
88}
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