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;
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24 | using System.Collections.Generic;
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25 | using System.Collections.ObjectModel;
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26 | using System.Linq;
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27 | using System.Text;
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28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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29 |
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30 | namespace HeuristicLab.Collections {
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31 | [Serializable]
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32 | public class ReadOnlyObservableList<T> : IObservableList<T> {
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33 | [Storable]
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34 | private IObservableList<T> list;
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35 |
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36 | #region Properties
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37 | public int Count {
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38 | get { return ((ICollection<T>)list).Count; }
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39 | }
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40 | bool ICollection<T>.IsReadOnly {
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41 | get { return true; }
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42 | }
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43 |
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44 | public T this[int index] {
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45 | get { return list[index]; }
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46 | }
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47 | T IList<T>.this[int index] {
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48 | get { return list[index]; }
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49 | set { throw new NotSupportedException(); }
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50 | }
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51 | #endregion
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52 |
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53 | #region Constructors
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54 | public ReadOnlyObservableList(IObservableList<T> list) {
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55 | if (list == null) throw new ArgumentNullException();
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56 | this.list = list;
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57 | list.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<T>>(list_ItemsAdded);
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58 | list.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(list_ItemsRemoved);
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59 | list.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<T>>(list_ItemsReplaced);
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60 | list.ItemsMoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(list_ItemsMoved);
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61 | list.CollectionReset += new CollectionItemsChangedEventHandler<IndexedItem<T>>(list_CollectionReset);
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62 | }
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63 | #endregion
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64 |
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65 | #region Access
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66 | public bool Contains(T item) {
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67 | return list.Contains(item);
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68 | }
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69 |
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70 | public int IndexOf(T item) {
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71 | return list.IndexOf(item);
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72 | }
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73 | #endregion
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74 |
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75 | #region Manipulation
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76 | void ICollection<T>.Add(T item) {
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77 | throw new NotSupportedException();
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78 | }
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79 |
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80 | void IList<T>.Insert(int index, T item) {
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81 | throw new NotSupportedException();
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82 | }
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83 |
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84 | bool ICollection<T>.Remove(T item) {
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85 | throw new NotSupportedException();
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86 | }
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87 | void IList<T>.RemoveAt(int index) {
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88 | throw new NotSupportedException();
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89 | }
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90 |
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91 | void ICollection<T>.Clear() {
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92 | throw new NotSupportedException();
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93 | }
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94 | #endregion
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95 |
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96 | #region Conversion
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97 | void ICollection<T>.CopyTo(T[] array, int arrayIndex) {
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98 | list.CopyTo(array, arrayIndex);
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99 | }
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100 | #endregion
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101 |
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102 | #region Enumeration
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103 | public IEnumerator<T> GetEnumerator() {
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104 | return ((ICollection<T>)list).GetEnumerator();
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105 | }
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106 | IEnumerator IEnumerable.GetEnumerator() {
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107 | return ((IEnumerable)list).GetEnumerator();
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108 | }
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109 | #endregion
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110 |
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111 | #region Events
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112 | [field: NonSerialized]
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113 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> ItemsAdded;
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114 | protected virtual void OnItemsAdded(IEnumerable<IndexedItem<T>> items) {
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115 | if (ItemsAdded != null)
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116 | ItemsAdded(this, new CollectionItemsChangedEventArgs<IndexedItem<T>>(items));
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117 | }
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118 |
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119 | [field: NonSerialized]
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120 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> ItemsRemoved;
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121 | protected virtual void OnItemsRemoved(IEnumerable<IndexedItem<T>> items) {
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122 | if (ItemsRemoved != null)
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123 | ItemsRemoved(this, new CollectionItemsChangedEventArgs<IndexedItem<T>>(items));
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124 | }
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125 |
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126 | [field: NonSerialized]
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127 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> ItemsReplaced;
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128 | protected virtual void OnItemsReplaced(IEnumerable<IndexedItem<T>> items, IEnumerable<IndexedItem<T>> oldItems) {
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129 | if (ItemsReplaced != null)
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130 | ItemsReplaced(this, new CollectionItemsChangedEventArgs<IndexedItem<T>>(items, oldItems));
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131 | }
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132 |
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133 | [field: NonSerialized]
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134 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> ItemsMoved;
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135 | protected virtual void OnItemsMoved(IEnumerable<IndexedItem<T>> items, IEnumerable<IndexedItem<T>> oldItems) {
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136 | if (ItemsMoved != null)
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137 | ItemsMoved(this, new CollectionItemsChangedEventArgs<IndexedItem<T>>(items, oldItems));
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138 | }
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139 |
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140 | [field: NonSerialized]
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141 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> CollectionReset;
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142 | protected virtual void OnCollectionReset(IEnumerable<IndexedItem<T>> items, IEnumerable<IndexedItem<T>> oldItems) {
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143 | if (CollectionReset != null)
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144 | CollectionReset(this, new CollectionItemsChangedEventArgs<IndexedItem<T>>(items, oldItems));
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145 | }
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146 |
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147 | private void list_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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148 | OnItemsAdded(e.Items);
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149 | }
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150 | private void list_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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151 | OnItemsRemoved(e.Items);
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152 | }
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153 | private void list_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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154 | OnItemsReplaced(e.Items, e.OldItems);
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155 | }
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156 | private void list_ItemsMoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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157 | OnItemsMoved(e.Items, e.OldItems);
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158 | }
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159 | private void list_CollectionReset(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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160 | OnCollectionReset(e.Items, e.OldItems);
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161 | }
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162 | #endregion
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163 | }
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164 | }
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