[2] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[2790] | 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2] | 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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[2653] | 23 | using System.Linq;
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[4068] | 24 | using HeuristicLab.Collections;
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| 25 | using HeuristicLab.Common;
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[1823] | 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2] | 27 |
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| 28 | namespace HeuristicLab.Core {
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[776] | 29 | /// <summary>
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| 30 | /// Represents a graph of operators.
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| 31 | /// </summary>
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[3160] | 32 | [Item("Operator Graph", "Represents a graph of operators.")]
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[3017] | 33 | [StorableClass]
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[4419] | 34 | public class OperatorGraph : Item, IStorableContent {
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| 35 | public string Filename { get; set; }
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| 36 |
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[3317] | 37 | [Storable]
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[2653] | 38 | private OperatorSet operators;
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[776] | 39 | /// <summary>
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| 40 | /// Gets all operators of the current instance.
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| 41 | /// </summary>
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[2653] | 42 | public OperatorSet Operators {
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| 43 | get { return operators; }
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[2] | 44 | }
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[1667] | 45 |
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| 46 | [Storable]
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[2653] | 47 | private IOperator initialOperator;
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[776] | 48 | /// <summary>
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| 49 | /// Gets or sets the initial operator (the starting one).
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| 50 | /// </summary>
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| 51 | /// <remarks>Calls <see cref="OnInitialOperatorChanged"/> in the setter.</remarks>
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[2] | 52 | public IOperator InitialOperator {
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[2653] | 53 | get { return initialOperator; }
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[2] | 54 | set {
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[2653] | 55 | if (initialOperator != value) {
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| 56 | if (value != null) Operators.Add(value);
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| 57 | initialOperator = value;
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[2] | 58 | OnInitialOperatorChanged();
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| 59 | }
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| 60 | }
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| 61 | }
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| 62 |
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[2853] | 63 | [Storable]
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| 64 | private IDeepCloneable visualizationInfo;
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[776] | 65 | /// <summary>
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[2853] | 66 | /// Gets or sets the visualizationInfo.
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| 67 | /// </summary>
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| 68 | /// /// <remarks>The VisualizationInfo can only be set once and fires afterwards and InvalidOperationException</remarks>
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| 69 | public IDeepCloneable VisualizationInfo {
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| 70 | get { return visualizationInfo; }
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| 71 | set {
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| 72 | if (visualizationInfo != null)
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| 73 | throw new InvalidOperationException("The value of the property VisualizationInfo is already set and cannot be set again.");
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| 74 | visualizationInfo = value;
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| 75 | }
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| 76 | }
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| 77 |
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[4722] | 78 | [StorableConstructor]
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| 79 | protected OperatorGraph(bool deserializing) : base(deserializing) { }
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| 80 | protected OperatorGraph(OperatorGraph original, Cloner cloner)
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| 81 | : base(original, cloner) {
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| 82 | operators = cloner.Clone(original.operators);
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| 83 | initialOperator = cloner.Clone(original.initialOperator);
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| 84 | visualizationInfo = cloner.Clone(original.visualizationInfo);
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| 85 | Initialize();
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| 86 | }
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[2853] | 87 | /// <summary>
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[776] | 88 | /// Initializes a new instance of <see cref="OperatorGraph"/>.
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| 89 | /// </summary>
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[2] | 90 | public OperatorGraph() {
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[3317] | 91 | operators = new OperatorSet();
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[2653] | 92 | initialOperator = null;
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[2853] | 93 | visualizationInfo = null;
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[3317] | 94 | Initialize();
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[2] | 95 | }
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| 96 |
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[5008] | 97 | //mkommend: IMPORTANT DO NOT REMOVE THIS EVENT
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[3386] | 98 | //needed to register OperatorGraph events in GraphVisualizationInfo
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| 99 | public event EventHandler DeserializationFinished;
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| 100 | private void OnOperatorGraphDeserializationFinished() {
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| 101 | EventHandler handler = DeserializationFinished;
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[4722] | 102 | if (handler != null) handler(this, EventArgs.Empty);
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[3386] | 103 | }
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[4722] | 104 |
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[3317] | 105 | [StorableHook(HookType.AfterDeserialization)]
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[4722] | 106 | private void AfterDeserialization() {
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| 107 | Initialize();
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[5008] | 108 | OnOperatorGraphDeserializationFinished();
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[4722] | 109 | }
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[3317] | 110 | private void Initialize() {
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| 111 | RegisterOperatorsEvents();
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| 112 | }
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| 113 |
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[776] | 114 | /// <summary>
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| 115 | /// Clones the current instance (deep clone).
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| 116 | /// </summary>
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[2526] | 117 | /// <remarks>Deep clone through <see cref="cloner.Clone"/> method of helper class
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[776] | 118 | /// <see cref="Auxiliary"/>.</remarks>
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| 119 | /// <param name="clonedObjects">Dictionary of all already cloned objects. (Needed to avoid cycles.)</param>
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| 120 | /// <returns>The cloned object as <see cref="OperatorGraph"/>.</returns>
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[2653] | 121 | public override IDeepCloneable Clone(Cloner cloner) {
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[4722] | 122 | return new OperatorGraph(this, cloner);
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[2] | 123 | }
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| 124 |
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[776] | 125 | /// <inheritdoc/>
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[2653] | 126 | public event EventHandler InitialOperatorChanged;
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| 127 | /// <summary>
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| 128 | /// Fires a new <c>InitialOperatorChanged</c> event.
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| 129 | /// </summary>
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| 130 | protected virtual void OnInitialOperatorChanged() {
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[4722] | 131 | var handler = InitialOperatorChanged;
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| 132 | if (handler != null) handler(this, EventArgs.Empty);
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[2653] | 133 | }
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[2] | 134 |
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[2653] | 135 | #region Operators Events
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| 136 | private void AddOperator(IOperator op) {
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| 137 | RegisterOperatorEvents(op);
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| 138 | foreach (IParameter param in op.Parameters)
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| 139 | AddParameter(param);
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| 140 | }
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| 141 | private void RemoveOperator(IOperator op) {
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| 142 | foreach (IParameter param in op.Parameters)
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| 143 | RemoveParameter(param);
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| 144 | DeregisterOperatorEvents(op);
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| 145 |
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| 146 | // remove edges to removed operator
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[3729] | 147 | IValueParameter[] opParams = (from o in Operators
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| 148 | from p in o.Parameters
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| 149 | where p is IValueParameter
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| 150 | where typeof(IOperator).IsAssignableFrom(((IValueParameter)p).DataType)
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| 151 | where (((IValueParameter)p).Value != null) && (((IValueParameter)p).Value == op)
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| 152 | select (IValueParameter)p).ToArray();
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[3407] | 153 | foreach (IValueParameter opParam in opParams)
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[2653] | 154 | opParam.Value = null;
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| 155 | }
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| 156 | private void AddParameter(IParameter param) {
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[3407] | 157 | IValueParameter valueParam = param as IValueParameter;
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| 158 | if ((valueParam != null) && (typeof(IOperator).IsAssignableFrom(valueParam.DataType))) {
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| 159 | RegisterOperatorParameterEvents(valueParam);
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| 160 | if (valueParam.Value != null) Operators.Add((IOperator)valueParam.Value);
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[2] | 161 | }
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| 162 | }
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[2653] | 163 | private void RemoveParameter(IParameter param) {
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[3407] | 164 | IValueParameter valueParam = param as IValueParameter;
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| 165 | if ((valueParam != null) && (typeof(IOperator).IsAssignableFrom(valueParam.DataType))) {
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| 166 | DeregisterOperatorParameterEvents(valueParam);
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[2] | 167 | }
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| 168 | }
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[2653] | 169 |
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| 170 | private void RegisterOperatorsEvents() {
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| 171 | if (operators != null) {
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| 172 | operators.ItemsAdded += new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsAdded);
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| 173 | operators.ItemsRemoved += new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsRemoved);
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| 174 | operators.CollectionReset += new CollectionItemsChangedEventHandler<IOperator>(Operators_CollectionReset);
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[2790] | 175 | foreach (IOperator op in operators) {
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| 176 | RegisterOperatorEvents(op);
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[3407] | 177 | var opParams = from p in op.Parameters
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| 178 | where p is IValueParameter
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| 179 | where typeof(IOperator).IsAssignableFrom(((IValueParameter)p).DataType)
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| 180 | select (IValueParameter)p;
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| 181 | foreach (IValueParameter opParam in opParams)
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| 182 | RegisterOperatorParameterEvents(opParam);
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[2790] | 183 | }
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[2] | 184 | }
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| 185 | }
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[2653] | 186 | private void RegisterOperatorEvents(IOperator op) {
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| 187 | op.Parameters.ItemsAdded += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsAdded);
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| 188 | op.Parameters.ItemsRemoved += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsRemoved);
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| 189 | op.Parameters.ItemsReplaced += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsReplaced);
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| 190 | op.Parameters.CollectionReset += new CollectionItemsChangedEventHandler<IParameter>(Parameters_CollectionReset);
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| 191 | }
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| 192 | private void DeregisterOperatorEvents(IOperator op) {
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| 193 | op.Parameters.ItemsAdded -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsAdded);
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| 194 | op.Parameters.ItemsRemoved -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsRemoved);
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| 195 | op.Parameters.ItemsReplaced -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsReplaced);
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| 196 | op.Parameters.CollectionReset -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_CollectionReset);
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| 197 | }
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[3407] | 198 | private void RegisterOperatorParameterEvents(IValueParameter opParam) {
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[2653] | 199 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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| 200 | }
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[3407] | 201 | private void DeregisterOperatorParameterEvents(IValueParameter opParam) {
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[2653] | 202 | opParam.ValueChanged -= new EventHandler(opParam_ValueChanged);
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| 203 | }
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[2] | 204 |
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[2653] | 205 | private void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 206 | foreach (IOperator op in e.Items)
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| 207 | AddOperator(op);
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[2] | 208 | }
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[2653] | 209 | private void Operators_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 210 | foreach (IOperator op in e.Items)
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| 211 | RemoveOperator(op);
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| 212 | if (!Operators.Contains(InitialOperator)) InitialOperator = null;
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[2] | 213 | }
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[2653] | 214 | private void Operators_CollectionReset(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 215 | foreach (IOperator op in e.OldItems)
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| 216 | RemoveOperator(op);
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| 217 | foreach (IOperator op in e.Items)
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| 218 | AddOperator(op);
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| 219 | if (!Operators.Contains(InitialOperator)) InitialOperator = null;
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[2] | 220 | }
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[2653] | 221 | private void Parameters_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 222 | foreach (IParameter param in e.Items)
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| 223 | AddParameter(param);
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| 224 | }
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| 225 | private void Parameters_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 226 | foreach (IParameter param in e.Items)
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| 227 | RemoveParameter(param);
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| 228 | }
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| 229 | private void Parameters_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 230 | foreach (IParameter param in e.OldItems)
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| 231 | RemoveParameter(param);
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| 232 | foreach (IParameter param in e.Items)
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| 233 | AddParameter(param);
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| 234 | }
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| 235 | private void Parameters_CollectionReset(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 236 | foreach (IParameter param in e.OldItems)
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| 237 | RemoveParameter(param);
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| 238 | foreach (IParameter param in e.Items)
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| 239 | AddParameter(param);
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| 240 | }
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| 241 | private void opParam_ValueChanged(object sender, EventArgs e) {
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[3407] | 242 | IValueParameter opParam = (IValueParameter)sender;
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| 243 | if (opParam.Value != null) Operators.Add((IOperator)opParam.Value);
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[2653] | 244 | }
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| 245 | #endregion
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[2] | 246 | }
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| 247 | }
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