1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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 | [Serializable]
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30 | [StorableClass(StorableClassType.MarkedOnly)]
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31 | public class ReadOnlyObservableDictionary<TKey, TValue> : IObservableDictionary<TKey, TValue> {
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32 | [Storable]
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33 | private IObservableDictionary<TKey, TValue> dict;
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34 |
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35 | #region persistence
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36 | private ReadOnlyObservableDictionary() { }
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37 |
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38 | [StorableHook(HookType.AfterDeserialization)]
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39 | private void PostDeserizlationHook() {
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40 | RegisterEvents();
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41 | }
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42 | #endregion
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43 |
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44 | #region Properties
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45 | public ICollection<TKey> Keys {
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46 | get { return dict.Keys; }
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47 | }
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48 | public ICollection<TValue> Values {
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49 | get { return dict.Values; }
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50 | }
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51 | public int Count {
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52 | get { return dict.Count; }
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53 | }
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54 | bool ICollection<KeyValuePair<TKey, TValue>>.IsReadOnly {
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55 | get { return true; }
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56 | }
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57 |
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58 | public TValue this[TKey key] {
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59 | get { return dict[key]; }
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60 | }
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61 | TValue IDictionary<TKey, TValue>.this[TKey key] {
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62 | get { return dict[key]; }
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63 | set { throw new NotSupportedException(); }
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64 | }
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65 | #endregion
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66 |
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67 | #region Constructors
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68 | public ReadOnlyObservableDictionary(IObservableDictionary<TKey, TValue> dictionary) {
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69 | if (dictionary == null) throw new ArgumentNullException();
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70 | dict = dictionary;
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71 | RegisterEvents();
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72 | }
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73 |
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74 | private void RegisterEvents() {
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75 | dict.ItemsAdded += new CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>>(dict_ItemsAdded);
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76 | dict.ItemsRemoved += new CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>>(dict_ItemsRemoved);
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77 | dict.ItemsReplaced += new CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>>(dict_ItemsReplaced);
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78 | dict.CollectionReset += new CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>>(dict_CollectionReset);
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79 | dict.PropertyChanged += new PropertyChangedEventHandler(dict_PropertyChanged);
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80 | }
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81 | #endregion
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82 |
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83 | #region Access
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84 | public bool ContainsKey(TKey key) {
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85 | return dict.ContainsKey(key);
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86 | }
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87 | bool ICollection<KeyValuePair<TKey, TValue>>.Contains(KeyValuePair<TKey, TValue> item) {
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88 | return dict.Contains(item);
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89 | }
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90 |
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91 | public bool TryGetValue(TKey key, out TValue value) {
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92 | return dict.TryGetValue(key, out value);
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93 | }
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94 | #endregion
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95 |
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96 | #region Manipulation
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97 | void IDictionary<TKey, TValue>.Add(TKey key, TValue value) {
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98 | throw new NotSupportedException();
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99 | }
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100 | void ICollection<KeyValuePair<TKey, TValue>>.Add(KeyValuePair<TKey, TValue> item) {
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101 | throw new NotSupportedException();
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102 | }
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103 |
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104 | bool IDictionary<TKey, TValue>.Remove(TKey key) {
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105 | throw new NotSupportedException();
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106 | }
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107 | bool ICollection<KeyValuePair<TKey, TValue>>.Remove(KeyValuePair<TKey, TValue> item) {
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108 | throw new NotSupportedException();
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109 | }
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110 |
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111 | void ICollection<KeyValuePair<TKey, TValue>>.Clear() {
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112 | throw new NotSupportedException();
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113 | }
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114 | #endregion
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115 |
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116 | #region Conversion
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117 | void ICollection<KeyValuePair<TKey, TValue>>.CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) {
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118 | ((ICollection<KeyValuePair<TKey, TValue>>)dict).CopyTo(array, arrayIndex);
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119 | }
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120 | #endregion
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121 |
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122 | #region Enumeration
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123 | public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator() {
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124 | return dict.GetEnumerator();
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125 | }
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126 | IEnumerator IEnumerable.GetEnumerator() {
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127 | return ((IEnumerable)dict).GetEnumerator();
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128 | }
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129 | #endregion
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130 |
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131 | #region Events
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132 | [field: NonSerialized]
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133 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsAdded;
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134 | protected virtual void OnItemsAdded(IEnumerable<KeyValuePair<TKey, TValue>> items) {
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135 | if (ItemsAdded != null)
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136 | ItemsAdded(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items));
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137 | }
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138 |
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139 | [field: NonSerialized]
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140 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsRemoved;
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141 | protected virtual void OnItemsRemoved(IEnumerable<KeyValuePair<TKey, TValue>> items) {
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142 | if (ItemsRemoved != null)
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143 | ItemsRemoved(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items));
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144 | }
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145 |
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146 | [field: NonSerialized]
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147 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsReplaced;
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148 | protected virtual void OnItemsReplaced(IEnumerable<KeyValuePair<TKey, TValue>> items, IEnumerable<KeyValuePair<TKey, TValue>> oldItems) {
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149 | if (ItemsReplaced != null)
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150 | ItemsReplaced(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items, oldItems));
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151 | }
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152 |
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153 | [field: NonSerialized]
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154 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> CollectionReset;
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155 | protected virtual void OnCollectionReset(IEnumerable<KeyValuePair<TKey, TValue>> items, IEnumerable<KeyValuePair<TKey, TValue>> oldItems) {
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156 | if (CollectionReset != null)
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157 | CollectionReset(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items, oldItems));
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158 | }
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159 |
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160 | [field: NonSerialized]
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161 | public event PropertyChangedEventHandler PropertyChanged;
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162 | protected virtual void OnPropertyChanged(string propertyName) {
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163 | if (PropertyChanged != null)
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164 | PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
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165 | }
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166 |
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167 | private void dict_ItemsAdded(object sender, CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>> e) {
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168 | OnItemsAdded(e.Items);
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169 | }
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170 | private void dict_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>> e) {
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171 | OnItemsRemoved(e.Items);
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172 | }
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173 | private void dict_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>> e) {
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174 | OnItemsReplaced(e.Items, e.OldItems);
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175 | }
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176 | private void dict_CollectionReset(object sender, CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>> e) {
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177 | OnCollectionReset(e.Items, e.OldItems);
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178 | }
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179 | private void dict_PropertyChanged(object sender, PropertyChangedEventArgs e) {
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180 | if (e.PropertyName.Equals("Item[]") || e.PropertyName.Equals("Keys") || e.PropertyName.Equals("Values") || e.PropertyName.Equals("Count"))
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181 | OnPropertyChanged(e.PropertyName);
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182 | }
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183 | #endregion
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184 | }
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185 | }
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