1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Linq;
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25 | using System.Text;
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26 | using System.Xml;
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27 | using HeuristicLab.Collections;
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28 | using HeuristicLab.Core;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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31 |
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32 | namespace HeuristicLab.Operators {
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33 | /// <summary>
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34 | /// A base class for operators which have multiple successors.
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35 | /// </summary>
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36 | [Item("MultipleSuccessorsOperator", "A base class for operators which have multiple successors.")]
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37 | [Creatable("Test")]
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38 | [EmptyStorableClass]
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39 | public abstract class MultipleSuccessorsOperator : Operator {
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40 | protected IValueParameter<IOperator>[] SuccessorParameters {
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41 | get {
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42 | return (from p in Parameters
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43 | where p is IValueParameter<IOperator>
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44 | orderby p.Name ascending
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45 | select (IValueParameter<IOperator>)p).ToArray();
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46 | }
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47 | }
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48 |
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49 | private OperatorList successors;
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50 | public OperatorList Successors {
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51 | get {
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52 | if (successors == null) {
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53 | successors = new OperatorList();
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54 | var opParams = SuccessorParameters;
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55 | foreach (IValueParameter<IOperator> opParam in opParams) {
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56 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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57 | successors.Add(opParam.Value);
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58 | }
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59 | successors.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<IOperator>>(successors_ItemsAdded);
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60 | successors.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<IOperator>>(successors_ItemsRemoved);
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61 | successors.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<IOperator>>(successors_ItemsReplaced);
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62 | successors.ItemsMoved += new CollectionItemsChangedEventHandler<IndexedItem<IOperator>>(successors_ItemsMoved);
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63 | successors.CollectionReset += new CollectionItemsChangedEventHandler<IndexedItem<IOperator>>(successors_CollectionReset);
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64 | }
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65 | return successors;
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66 | }
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67 | }
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68 |
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69 | public MultipleSuccessorsOperator()
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70 | : base() {
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71 | }
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72 |
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73 | private void UpdateOperatorParameters() {
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74 | var opParams = SuccessorParameters;
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75 | foreach (IValueParameter<IOperator> opParam in opParams) {
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76 | opParam.ValueChanged -= new EventHandler(opParam_ValueChanged);
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77 | Parameters.Remove(opParam.Name);
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78 | }
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79 | for (int i = 0; i < Successors.Count; i++) {
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80 | IValueParameter<IOperator> opParam = new OperatorParameter(i.ToString(), string.Empty, Successors[i]);
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81 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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82 | Parameters.Add(opParam);
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83 | }
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84 | }
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85 |
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86 | private void successors_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IOperator>> e) {
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87 | UpdateOperatorParameters();
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88 | }
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89 | private void successors_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<IOperator>> e) {
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90 | UpdateOperatorParameters();
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91 | }
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92 | private void successors_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IOperator>> e) {
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93 | foreach (IndexedItem<IOperator> item in e.Items)
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94 | ((IValueParameter<IOperator>)Parameters[item.Index.ToString()]).Value = item.Value;
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95 | }
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96 | private void successors_ItemsMoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<IOperator>> e) {
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97 | foreach (IndexedItem<IOperator> item in e.Items)
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98 | ((IValueParameter<IOperator>)Parameters[item.Index.ToString()]).Value = item.Value;
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99 | }
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100 | private void successors_CollectionReset(object sender, CollectionItemsChangedEventArgs<IndexedItem<IOperator>> e) {
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101 | UpdateOperatorParameters();
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102 | }
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103 | private void opParam_ValueChanged(object sender, EventArgs e) {
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104 | IValueParameter<IOperator> opParam = (IValueParameter<IOperator>)sender;
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105 | int index = int.Parse(opParam.Name);
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106 | successors[index] = opParam.Value;
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107 | }
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108 | }
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109 | }
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