source: branches/histogram/HeuristicLab.Selection/3.3/LeftSelector.cs @ 6055

Last change on this file since 6055 was 6055, checked in by abeham, 9 years ago

#1465

  • updated branch from trunk
File size: 3.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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.Collections.Generic;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Selection {
30  /// <summary>
31  /// An operator which selects sub-scopes from left to right.
32  /// </summary>
33  [Item("LeftSelector", "An operator which selects sub-scopes from left to right.")]
34  [StorableClass]
35  public sealed class LeftSelector : Selector {
36    private IValueParameter<BoolValue> CopySelectedParameter {
37      get { return (IValueParameter<BoolValue>)Parameters["CopySelected"]; }
38    }
39    public IValueLookupParameter<IntValue> NumberOfSelectedSubScopesParameter {
40      get { return (ValueLookupParameter<IntValue>)Parameters["NumberOfSelectedSubScopes"]; }
41    }
42
43    public BoolValue CopySelected {
44      get { return CopySelectedParameter.Value; }
45      set { CopySelectedParameter.Value = value; }
46    }
47
48    [StorableConstructor]
49    private LeftSelector(bool deserializing) : base(deserializing) { }
50    private LeftSelector(LeftSelector original, Cloner cloner)
51      : base(original, cloner) {
52    }
53    public override IDeepCloneable Clone(Cloner cloner) {
54      return new LeftSelector(this, cloner);
55    }
56
57    public LeftSelector()
58      : base() {
59      Parameters.Add(new ValueParameter<BoolValue>("CopySelected", "True if the selected sub-scopes should be copied, otherwise false.", new BoolValue(true)));
60      Parameters.Add(new ValueLookupParameter<IntValue>("NumberOfSelectedSubScopes", "The number of sub-scopes which should be selected."));
61      CopySelectedParameter.Hidden = true;
62    }
63
64    protected override IScope[] Select(List<IScope> scopes) {
65      int count = NumberOfSelectedSubScopesParameter.ActualValue.Value;
66      bool copy = CopySelectedParameter.Value.Value;
67      IScope[] selected = new IScope[count];
68
69      int j = 0;
70      for (int i = 0; i < count; i++) {
71        if (copy) {
72          selected[i] = (IScope)scopes[j].Clone();
73          j++;
74          if (j >= scopes.Count) j = 0;
75        } else {
76          selected[i] = scopes[0];
77          scopes.RemoveAt(0);
78        }
79      }
80      return selected;
81    }
82  }
83}
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