1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2019 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.ComponentModel;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 |
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28 | namespace HeuristicLab.Collections {
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29 | [StorableClass]
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30 | [Serializable]
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31 | public class ReadOnlyObservableSet<T> : IObservableSet<T> {
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32 | [Storable]
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33 | protected IObservableSet<T> set;
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34 |
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35 | #region Properties
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36 | public int Count {
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37 | get { return set.Count; }
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38 | }
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39 | bool ICollection<T>.IsReadOnly {
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40 | get { return true; }
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41 | }
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42 | #endregion
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43 |
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44 | #region Constructors
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45 | protected ReadOnlyObservableSet() { }
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46 | public ReadOnlyObservableSet(IObservableSet<T> set) {
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47 | if (set == null) throw new ArgumentNullException();
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48 | this.set = set;
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49 | RegisterEvents();
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50 | }
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51 | [StorableConstructor]
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52 | protected ReadOnlyObservableSet(bool deserializing) { }
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53 |
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54 | [StorableHook(HookType.AfterDeserialization)]
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55 | private void AfterDeserialization() {
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56 | RegisterEvents();
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57 | }
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58 | #endregion
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59 |
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60 | #region Access
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61 | public bool Contains(T item) {
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62 | return set.Contains(item);
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63 | }
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64 |
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65 | public bool IsProperSubsetOf(IEnumerable<T> other) {
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66 | return set.IsProperSubsetOf(other);
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67 | }
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68 | public bool IsProperSupersetOf(IEnumerable<T> other) {
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69 | return set.IsProperSupersetOf(other);
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70 | }
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71 |
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72 | public bool IsSubsetOf(IEnumerable<T> other) {
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73 | return set.IsSubsetOf(other);
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74 | }
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75 | public bool IsSupersetOf(IEnumerable<T> other) {
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76 | return set.IsSupersetOf(other);
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77 | }
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78 |
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79 | public bool Overlaps(IEnumerable<T> other) {
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80 | return set.Overlaps(other);
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81 | }
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82 |
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83 | public bool SetEquals(IEnumerable<T> other) {
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84 | return set.SetEquals(other);
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85 | }
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86 | #endregion
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87 |
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88 | #region Manipulation
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89 | bool IObservableSet<T>.Add(T item) {
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90 | throw new NotSupportedException();
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91 | }
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92 | void ICollection<T>.Add(T item) {
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93 | throw new NotSupportedException();
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94 | }
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95 |
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96 | void IObservableSet<T>.ExceptWith(IEnumerable<T> other) {
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97 | throw new NotSupportedException();
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98 | }
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99 |
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100 | void IObservableSet<T>.IntersectWith(IEnumerable<T> other) {
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101 | throw new NotSupportedException();
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102 | }
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103 |
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104 | bool ICollection<T>.Remove(T item) {
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105 | throw new NotSupportedException();
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106 | }
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107 |
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108 | void IObservableSet<T>.SymmetricExceptWith(IEnumerable<T> other) {
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109 | throw new NotSupportedException();
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110 | }
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111 |
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112 | void IObservableSet<T>.UnionWith(IEnumerable<T> other) {
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113 | throw new NotSupportedException();
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114 | }
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115 |
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116 | void ICollection<T>.Clear() {
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117 | throw new NotSupportedException();
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118 | }
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119 | #endregion
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120 |
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121 | #region Conversion
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122 | public void CopyTo(T[] array, int arrayIndex) {
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123 | set.CopyTo(array, arrayIndex);
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124 | }
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125 | #endregion
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126 |
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127 | #region Enumeration
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128 | public IEnumerator<T> GetEnumerator() {
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129 | return set.GetEnumerator();
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130 | }
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131 | IEnumerator IEnumerable.GetEnumerator() {
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132 | return set.GetEnumerator();
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133 | }
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134 | #endregion
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135 |
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136 | #region Events
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137 | protected void RegisterEvents() {
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138 | set.ItemsAdded += new CollectionItemsChangedEventHandler<T>(set_ItemsAdded);
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139 | set.ItemsRemoved += new CollectionItemsChangedEventHandler<T>(set_ItemsRemoved);
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140 | set.CollectionReset += new CollectionItemsChangedEventHandler<T>(set_CollectionReset);
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141 | set.PropertyChanged += new PropertyChangedEventHandler(set_PropertyChanged);
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142 | }
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143 |
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144 | [field: NonSerialized]
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145 | public event CollectionItemsChangedEventHandler<T> ItemsAdded;
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146 | protected virtual void OnItemsAdded(IEnumerable<T> items) {
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147 | CollectionItemsChangedEventHandler<T> handler = ItemsAdded;
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148 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
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149 | }
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150 |
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151 | [field: NonSerialized]
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152 | public event CollectionItemsChangedEventHandler<T> ItemsRemoved;
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153 | protected virtual void OnItemsRemoved(IEnumerable<T> items) {
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154 | CollectionItemsChangedEventHandler<T> handler = ItemsRemoved;
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155 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
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156 | }
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157 |
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158 | [field: NonSerialized]
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159 | public event CollectionItemsChangedEventHandler<T> CollectionReset;
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160 | protected virtual void OnCollectionReset(IEnumerable<T> items, IEnumerable<T> oldItems) {
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161 | CollectionItemsChangedEventHandler<T> handler = CollectionReset;
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162 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items, oldItems));
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163 | }
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164 |
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165 | [field: NonSerialized]
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166 | public event PropertyChangedEventHandler PropertyChanged;
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167 | protected virtual void OnPropertyChanged(string propertyName) {
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168 | PropertyChangedEventHandler handler = PropertyChanged;
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169 | if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
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170 | }
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171 |
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172 | private void set_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
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173 | OnItemsAdded(e.Items);
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174 | }
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175 | private void set_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
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176 | OnItemsRemoved(e.Items);
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177 | }
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178 | private void set_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
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179 | OnCollectionReset(e.Items, e.OldItems);
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180 | }
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181 | private void set_PropertyChanged(object sender, PropertyChangedEventArgs e) {
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182 | if (e.PropertyName.Equals("Count"))
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183 | OnPropertyChanged(e.PropertyName);
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184 | }
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185 | #endregion
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186 | }
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187 | }
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