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source: trunk/sources/HeuristicLab.Optimization/3.3/Problems/Problem.cs @ 7207

Last change on this file since 7207 was 7201, checked in by swagner, 13 years ago

Implemented static item image properties to avoid instance creation in TypeSelector and NewItemDialog (#1651)

File size: 4.2 KB
RevLine 
[4323]1#region License Information
2/* HeuristicLab
[5445]3 * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
[4323]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.Collections.Generic;
24using System.Drawing;
25using HeuristicLab.Collections;
26using HeuristicLab.Common;
27using HeuristicLab.Core;
[6938]28using HeuristicLab.Parameters;
[4323]29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30
[4564]31namespace HeuristicLab.Optimization {
[4596]32  [Item("Problem", "Represents the base class for a problem.")]
[4323]33  [StorableClass]
[5809]34  public abstract class Problem : ParameterizedNamedItem, IProblem {
[6938]35    private static readonly string OperatorsParameterName = "Operators";
36
37    public IFixedValueParameter<OperatorCollection> OperatorsParameter {
38      get { return (IFixedValueParameter<OperatorCollection>)Parameters[OperatorsParameterName]; }
39    }
40
[7201]41    public static new Image StaticItemImage {
[5287]42      get { return HeuristicLab.Common.Resources.VSImageLibrary.Type; }
[4323]43    }
44
45    [StorableConstructor]
[6938]46    protected Problem(bool deserializing)
47      : base(deserializing) {
48      operators = new OperatorCollection(); // operators must never be null
49    }
[5809]50    protected Problem(Problem original, Cloner cloner)
[4722]51      : base(original, cloner) {
52      operators = cloner.Clone(original.operators);
53      RegisterEventHandlers();
54    }
55
[4323]56    protected Problem()
57      : base() {
[4564]58      operators = new OperatorCollection();
[6938]59      Parameters.Add(new FixedValueParameter<OperatorCollection>(OperatorsParameterName, "The operators that the problem provides to the algorithms.", operators, false));
60      OperatorsParameter.Hidden = true;
[4563]61      RegisterEventHandlers();
[4323]62    }
63
64    [StorableHook(HookType.AfterDeserialization)]
65    private void AfterDeserialization() {
[6938]66      // BackwardsCompatibility3.3
67      #region Backwards compatible code, remove with 3.4
68      if (!Parameters.ContainsKey(OperatorsParameterName)) {
69        Parameters.Add(new FixedValueParameter<OperatorCollection>(OperatorsParameterName, "The operators that the problem provides to the algorithms.", operators, false));
70        OperatorsParameter.Hidden = true;
71      }
72      #endregion
[4563]73      RegisterEventHandlers();
[4323]74    }
75
[4563]76    private void RegisterEventHandlers() {
[4323]77      Operators.ItemsAdded += new CollectionItemsChangedEventHandler<IOperator>(Operators_Changed);
78      Operators.ItemsRemoved += new CollectionItemsChangedEventHandler<IOperator>(Operators_Changed);
79      Operators.CollectionReset += new CollectionItemsChangedEventHandler<IOperator>(Operators_Changed);
80    }
81
82    #region properties
[4564]83    private OperatorCollection operators;
[4563]84    [Storable(Name = "Operators")]
[4323]85    private IEnumerable<IOperator> StorableOperators {
86      get { return operators; }
[4564]87      set { operators = new OperatorCollection(value); }
[4323]88    }
[4564]89    protected OperatorCollection Operators {
[4323]90      get { return this.operators; }
91    }
92    IEnumerable<IOperator> IProblem.Operators { get { return operators; } }
93    #endregion
94
95    #region events
96    private void Operators_Changed(object sender, EventArgs e) {
97      OnOperatorsChanged();
98    }
99    public event EventHandler OperatorsChanged;
100    protected virtual void OnOperatorsChanged() {
101      EventHandler handler = OperatorsChanged;
102      if (handler != null)
103        handler(this, EventArgs.Empty);
104    }
105
106    public event EventHandler Reset;
107    protected virtual void OnReset() {
108      EventHandler handler = Reset;
109      if (handler != null)
110        handler(this, EventArgs.Empty);
111    }
112    #endregion
113  }
114}
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