[2] | 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.Text;
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| 25 | using System.Xml;
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[2653] | 26 | using System.Linq;
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[1823] | 27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2474] | 28 | using HeuristicLab.Common;
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[2653] | 29 | using HeuristicLab.Collections;
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[2] | 30 |
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| 31 | namespace HeuristicLab.Core {
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[776] | 32 | /// <summary>
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| 33 | /// Represents a graph of operators.
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| 34 | /// </summary>
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[2653] | 35 | [Item("OperatorGraph", "Represents a graph of operators.")]
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| 36 | [Creatable("Test")]
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[2664] | 37 | public class OperatorGraph : Item {
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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 | [Storable]
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| 43 | public OperatorSet Operators {
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| 44 | get { return operators; }
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| 45 | private set {
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| 46 | DeregisterOperatorsEvents();
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| 47 | operators = value;
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| 48 | RegisterOperatorsEvents();
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| 49 | }
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[2] | 50 | }
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[1667] | 51 |
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| 52 | [Storable]
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[2653] | 53 | private IOperator initialOperator;
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[776] | 54 | /// <summary>
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| 55 | /// Gets or sets the initial operator (the starting one).
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| 56 | /// </summary>
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| 57 | /// <remarks>Calls <see cref="OnInitialOperatorChanged"/> in the setter.</remarks>
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[2] | 58 | public IOperator InitialOperator {
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[2653] | 59 | get { return initialOperator; }
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[2] | 60 | set {
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[2653] | 61 | if (initialOperator != value) {
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| 62 | if (value != null) Operators.Add(value);
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| 63 | initialOperator = value;
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[2] | 64 | OnInitialOperatorChanged();
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| 65 | }
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| 66 | }
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| 67 | }
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| 68 |
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[776] | 69 | /// <summary>
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| 70 | /// Initializes a new instance of <see cref="OperatorGraph"/>.
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| 71 | /// </summary>
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[2] | 72 | public OperatorGraph() {
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[2653] | 73 | Operators = new OperatorSet();
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| 74 | initialOperator = null;
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[2] | 75 | }
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| 76 |
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[776] | 77 | /// <summary>
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| 78 | /// Clones the current instance (deep clone).
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| 79 | /// </summary>
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[2526] | 80 | /// <remarks>Deep clone through <see cref="cloner.Clone"/> method of helper class
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[776] | 81 | /// <see cref="Auxiliary"/>.</remarks>
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| 82 | /// <param name="clonedObjects">Dictionary of all already cloned objects. (Needed to avoid cycles.)</param>
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| 83 | /// <returns>The cloned object as <see cref="OperatorGraph"/>.</returns>
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[2653] | 84 | public override IDeepCloneable Clone(Cloner cloner) {
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[2] | 85 | OperatorGraph clone = new OperatorGraph();
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[2526] | 86 | cloner.RegisterClonedObject(this, clone);
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[2653] | 87 | clone.Operators = (OperatorSet)cloner.Clone(operators);
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| 88 | clone.initialOperator = (IOperator)cloner.Clone(initialOperator);
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[2] | 89 | return clone;
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| 90 | }
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| 91 |
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[776] | 92 | /// <inheritdoc/>
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[2653] | 93 | public event EventHandler InitialOperatorChanged;
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| 94 | /// <summary>
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| 95 | /// Fires a new <c>InitialOperatorChanged</c> event.
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| 96 | /// </summary>
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| 97 | protected virtual void OnInitialOperatorChanged() {
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| 98 | if (InitialOperatorChanged != null)
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| 99 | InitialOperatorChanged(this, new EventArgs());
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| 100 | OnChanged();
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| 101 | }
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[2] | 102 |
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[2653] | 103 | #region Operators Events
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| 104 | private void AddOperator(IOperator op) {
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| 105 | RegisterOperatorEvents(op);
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| 106 | foreach (IParameter param in op.Parameters)
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| 107 | AddParameter(param);
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| 108 | }
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| 109 | private void RemoveOperator(IOperator op) {
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| 110 | foreach (IParameter param in op.Parameters)
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| 111 | RemoveParameter(param);
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| 112 | DeregisterOperatorEvents(op);
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| 113 |
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| 114 | // remove edges to removed operator
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| 115 | var opParams = from o in Operators
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| 116 | from p in o.Parameters
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| 117 | where p is IOperatorParameter
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| 118 | where (((IOperatorParameter)p).Value != null) && (((IOperatorParameter)p).Value == op)
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| 119 | select (IOperatorParameter)p;
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| 120 | foreach (IOperatorParameter opParam in opParams)
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| 121 | opParam.Value = null;
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| 122 | }
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| 123 | private void AddParameter(IParameter param) {
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| 124 | IOperatorParameter opParam = param as IOperatorParameter;
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| 125 | if (opParam != null) {
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| 126 | RegisterOperatorParameterEvents(opParam);
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| 127 | if (opParam.Value != null) Operators.Add(opParam.Value);
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[2] | 128 | }
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| 129 | }
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[2653] | 130 | private void RemoveParameter(IParameter param) {
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| 131 | IOperatorParameter opParam = param as IOperatorParameter;
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| 132 | if (opParam != null) {
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| 133 | DeregisterOperatorParameterEvents(opParam);
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[2] | 134 | }
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| 135 | }
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[2653] | 136 |
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| 137 | private void RegisterOperatorsEvents() {
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| 138 | if (operators != null) {
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| 139 | operators.Changed += new ChangedEventHandler(Operators_Changed);
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| 140 | operators.ItemsAdded += new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsAdded);
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| 141 | operators.ItemsRemoved += new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsRemoved);
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| 142 | operators.CollectionReset += new CollectionItemsChangedEventHandler<IOperator>(Operators_CollectionReset);
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[2] | 143 | }
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| 144 | }
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[2653] | 145 | private void DeregisterOperatorsEvents() {
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| 146 | if (operators != null) {
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| 147 | operators.Changed -= new ChangedEventHandler(Operators_Changed);
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| 148 | operators.ItemsAdded -= new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsAdded);
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| 149 | operators.ItemsRemoved -= new CollectionItemsChangedEventHandler<IOperator>(Operators_ItemsRemoved);
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| 150 | operators.CollectionReset -= new CollectionItemsChangedEventHandler<IOperator>(Operators_CollectionReset);
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| 151 | }
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| 152 | }
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| 153 | private void RegisterOperatorEvents(IOperator op) {
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| 154 | op.Parameters.ItemsAdded += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsAdded);
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| 155 | op.Parameters.ItemsRemoved += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsRemoved);
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| 156 | op.Parameters.ItemsReplaced += new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsReplaced);
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| 157 | op.Parameters.CollectionReset += new CollectionItemsChangedEventHandler<IParameter>(Parameters_CollectionReset);
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| 158 | }
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| 159 | private void DeregisterOperatorEvents(IOperator op) {
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| 160 | op.Parameters.ItemsAdded -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsAdded);
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| 161 | op.Parameters.ItemsRemoved -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsRemoved);
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| 162 | op.Parameters.ItemsReplaced -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_ItemsReplaced);
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| 163 | op.Parameters.CollectionReset -= new CollectionItemsChangedEventHandler<IParameter>(Parameters_CollectionReset);
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| 164 | }
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| 165 | private void RegisterOperatorParameterEvents(IOperatorParameter opParam) {
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| 166 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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| 167 | }
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| 168 | private void DeregisterOperatorParameterEvents(IOperatorParameter opParam) {
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| 169 | opParam.ValueChanged -= new EventHandler(opParam_ValueChanged);
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| 170 | }
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[2] | 171 |
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[2653] | 172 | private void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 173 | foreach (IOperator op in e.Items)
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| 174 | AddOperator(op);
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[2] | 175 | }
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[2653] | 176 | private void Operators_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 177 | foreach (IOperator op in e.Items)
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| 178 | RemoveOperator(op);
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| 179 | if (!Operators.Contains(InitialOperator)) InitialOperator = null;
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[2] | 180 | }
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[2653] | 181 | private void Operators_CollectionReset(object sender, CollectionItemsChangedEventArgs<IOperator> e) {
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| 182 | foreach (IOperator op in e.OldItems)
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| 183 | RemoveOperator(op);
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| 184 | foreach (IOperator op in e.Items)
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| 185 | AddOperator(op);
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| 186 | if (!Operators.Contains(InitialOperator)) InitialOperator = null;
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[2] | 187 | }
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[2653] | 188 | private void Parameters_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 189 | foreach (IParameter param in e.Items)
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| 190 | AddParameter(param);
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| 191 | }
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| 192 | private void Parameters_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 193 | foreach (IParameter param in e.Items)
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| 194 | RemoveParameter(param);
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| 195 | }
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| 196 | private void Parameters_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 197 | foreach (IParameter param in e.OldItems)
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| 198 | RemoveParameter(param);
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| 199 | foreach (IParameter param in e.Items)
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| 200 | AddParameter(param);
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| 201 | }
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| 202 | private void Parameters_CollectionReset(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
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| 203 | foreach (IParameter param in e.OldItems)
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| 204 | RemoveParameter(param);
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| 205 | foreach (IParameter param in e.Items)
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| 206 | AddParameter(param);
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| 207 | }
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| 208 | private void opParam_ValueChanged(object sender, EventArgs e) {
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| 209 | IOperatorParameter opParam = (IOperatorParameter)sender;
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| 210 | if (opParam.Value != null) Operators.Add(opParam.Value);
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| 211 | }
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| 212 | private void Operators_Changed(object sender, ChangedEventArgs e) {
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| 213 | OnChanged(e);
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| 214 | }
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| 215 | #endregion
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[2] | 216 | }
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| 217 | }
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