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source: branches/DataAnalysis Refactoring/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/SymbolicExpressionTree.cs @ 5519

Last change on this file since 5519 was 5499, checked in by gkronber, 14 years ago

#1418 changes in symbolic expression tree encoding.

File size: 2.9 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;
23using System.Collections.Generic;
24using System.Drawing;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
30  [StorableClass]
31  [Item("SymbolicExpressionTree", "Represents a symbolic expression tree.")]
32  public class SymbolicExpressionTree : Item, ISymbolicExpressionTree {
33    public override Image ItemImage {
34      get { return HeuristicLab.Common.Resources.VSImageLibrary.Function; }
35    }
36    [Storable]
37    private ISymbolicExpressionTreeNode root;
38    public ISymbolicExpressionTreeNode Root {
39      get { return root; }
40      set {
41        if (value == null) throw new ArgumentNullException();
42        else if (value != root) {
43          root = value;
44          OnToStringChanged();
45        }
46      }
47    }
48
49    public int Size {
50      get {
51        if (root == null)
52          return 0;
53        return root.GetSize();
54      }
55    }
56
57    public int Height {
58      get {
59        if (root == null)
60          return 0;
61        return root.GetHeight();
62      }
63    }
64
65    [StorableConstructor]
66    protected SymbolicExpressionTree(bool deserializing) : base(deserializing) { }
67    protected SymbolicExpressionTree(SymbolicExpressionTree original, Cloner cloner)
68      : base(original, cloner) {
69      root = cloner.Clone(original.Root);
70    }
71    public SymbolicExpressionTree() : base() { }
72    public SymbolicExpressionTree(SymbolicExpressionTreeNode root)
73      : base() {
74      this.Root = root;
75    }
76
77    public IEnumerable<ISymbolicExpressionTreeNode> IterateNodesPrefix() {
78      if (root == null)
79        return new SymbolicExpressionTreeNode[0];
80      return root.IterateNodesPrefix();
81    }
82    public IEnumerable<ISymbolicExpressionTreeNode> IterateNodesPostfix() {
83      if (root == null)
84        return new SymbolicExpressionTreeNode[0];
85      return root.IterateNodesPostfix();
86    }
87
88    public override IDeepCloneable Clone(Cloner cloner) {
89      return new SymbolicExpressionTree(this, cloner);
90    }
91  }
92}
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