[2572] | 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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[2572] | 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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[2620] | 25 | using System.ComponentModel;
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[2572] | 26 | using System.Linq;
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| 27 |
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| 28 | namespace HeuristicLab.Collections {
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| 29 | [Serializable]
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[2574] | 30 | public class ObservableDictionary<TKey, TValue> : IObservableDictionary<TKey, TValue> {
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[3390] | 31 | protected Dictionary<TKey, TValue> dict;
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[2572] | 32 |
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| 33 | #region Properties
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| 34 | public ICollection<TKey> Keys {
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| 35 | get { return dict.Keys; }
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| 36 | }
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| 37 | public ICollection<TValue> Values {
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| 38 | get { return dict.Values; }
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| 39 | }
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| 40 | public int Count {
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| 41 | get { return dict.Count; }
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| 42 | }
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| 43 | public IEqualityComparer<TKey> Comparer {
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| 44 | get { return dict.Comparer; }
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| 45 | }
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| 46 | bool ICollection<KeyValuePair<TKey, TValue>>.IsReadOnly {
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| 47 | get { return ((ICollection<KeyValuePair<TKey, TValue>>)dict).IsReadOnly; }
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| 48 | }
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| 49 |
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| 50 | public TValue this[TKey key] {
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| 51 | get {
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| 52 | return dict[key];
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| 53 | }
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| 54 | set {
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[2573] | 55 | if (dict.ContainsKey(key)) {
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| 56 | KeyValuePair<TKey, TValue> item = new KeyValuePair<TKey, TValue>(key, dict[key]);
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| 57 | dict[key] = value;
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| 58 | OnItemsReplaced(new KeyValuePair<TKey, TValue>[] { new KeyValuePair<TKey, TValue>(key, value) }, new KeyValuePair<TKey, TValue>[] { item });
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| 59 | } else {
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| 60 | dict[key] = value;
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| 61 | OnItemsAdded(new KeyValuePair<TKey, TValue>[] { new KeyValuePair<TKey, TValue>(key, value) });
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| 62 | }
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[2572] | 63 | }
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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 ObservableDictionary() {
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| 69 | dict = new Dictionary<TKey, TValue>();
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| 70 | }
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| 71 | public ObservableDictionary(int capacity) {
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| 72 | dict = new Dictionary<TKey, TValue>(capacity);
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| 73 | }
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| 74 | public ObservableDictionary(IEqualityComparer<TKey> comparer) {
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| 75 | dict = new Dictionary<TKey, TValue>(comparer);
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| 76 | }
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| 77 | public ObservableDictionary(IDictionary<TKey, TValue> dictionary) {
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| 78 | dict = new Dictionary<TKey, TValue>(dictionary);
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| 79 | }
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| 80 | public ObservableDictionary(int capacity, IEqualityComparer<TKey> comparer) {
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| 81 | dict = new Dictionary<TKey, TValue>(capacity, comparer);
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| 82 | }
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| 83 | public ObservableDictionary(IDictionary<TKey, TValue> dictionary, IEqualityComparer<TKey> comparer) {
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| 84 | dict = new Dictionary<TKey, TValue>(dictionary, comparer);
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| 85 | }
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| 86 | #endregion
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| 87 |
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| 88 | #region Access
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| 89 | public bool ContainsKey(TKey key) {
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| 90 | return dict.ContainsKey(key);
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| 91 | }
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| 92 | public bool ContainsValue(TValue value) {
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| 93 | return dict.ContainsValue(value);
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| 94 | }
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| 95 | bool ICollection<KeyValuePair<TKey, TValue>>.Contains(KeyValuePair<TKey, TValue> item) {
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| 96 | return dict.Contains(item);
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| 97 | }
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[2573] | 98 |
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[2572] | 99 | public bool TryGetValue(TKey key, out TValue value) {
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| 100 | return dict.TryGetValue(key, out value);
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| 101 | }
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| 102 | #endregion
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| 103 |
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| 104 | #region Manipulation
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| 105 | public void Add(TKey key, TValue value) {
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| 106 | dict.Add(key, value);
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[2620] | 107 | OnPropertyChanged("Item[]");
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| 108 | OnPropertyChanged("Keys");
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| 109 | OnPropertyChanged("Values");
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| 110 | OnPropertyChanged("Count");
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[2572] | 111 | OnItemsAdded(new KeyValuePair<TKey, TValue>[] { new KeyValuePair<TKey, TValue>(key, value) });
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| 112 | }
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| 113 | void ICollection<KeyValuePair<TKey, TValue>>.Add(KeyValuePair<TKey, TValue> item) {
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| 114 | ((ICollection<KeyValuePair<TKey, TValue>>)dict).Add(item);
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[2620] | 115 | OnPropertyChanged("Item[]");
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| 116 | OnPropertyChanged("Keys");
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| 117 | OnPropertyChanged("Values");
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| 118 | OnPropertyChanged("Count");
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[2572] | 119 | OnItemsAdded(new KeyValuePair<TKey, TValue>[] { item });
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| 120 | }
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| 121 |
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| 122 | public bool Remove(TKey key) {
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| 123 | TValue value;
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| 124 | if (dict.TryGetValue(key, out value)) {
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| 125 | dict.Remove(key);
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[2620] | 126 | OnPropertyChanged("Item[]");
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| 127 | OnPropertyChanged("Keys");
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| 128 | OnPropertyChanged("Values");
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| 129 | OnPropertyChanged("Count");
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[2572] | 130 | OnItemsRemoved(new KeyValuePair<TKey, TValue>[] { new KeyValuePair<TKey, TValue>(key, value) });
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| 131 | return true;
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| 132 | }
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| 133 | return false;
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| 134 | }
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| 135 | bool ICollection<KeyValuePair<TKey, TValue>>.Remove(KeyValuePair<TKey, TValue> item) {
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| 136 | if (((ICollection<KeyValuePair<TKey, TValue>>)dict).Remove(item)) {
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[2620] | 137 | OnPropertyChanged("Item[]");
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| 138 | OnPropertyChanged("Keys");
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| 139 | OnPropertyChanged("Values");
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| 140 | OnPropertyChanged("Count");
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[2572] | 141 | OnItemsRemoved(new KeyValuePair<TKey, TValue>[] { item });
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| 142 | return true;
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| 143 | }
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| 144 | return false;
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| 145 | }
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| 146 |
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| 147 | public void Clear() {
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[2620] | 148 | if (dict.Count > 0) {
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| 149 | KeyValuePair<TKey, TValue>[] items = dict.ToArray();
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| 150 | dict.Clear();
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| 151 | OnPropertyChanged("Item[]");
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| 152 | OnPropertyChanged("Keys");
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| 153 | OnPropertyChanged("Values");
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| 154 | OnPropertyChanged("Count");
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| 155 | OnCollectionReset(new KeyValuePair<TKey, TValue>[0], items);
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| 156 | }
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[2572] | 157 | }
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| 158 | #endregion
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| 159 |
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| 160 | #region Conversion
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[2618] | 161 | public ReadOnlyObservableDictionary<TKey, TValue> AsReadOnly() {
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| 162 | return new ReadOnlyObservableDictionary<TKey, TValue>(this);
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| 163 | }
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[2572] | 164 | void ICollection<KeyValuePair<TKey, TValue>>.CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) {
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| 165 | ((ICollection<KeyValuePair<TKey, TValue>>)dict).CopyTo(array, arrayIndex);
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| 166 | }
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| 167 | #endregion
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| 168 |
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| 169 | #region Enumeration
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[2623] | 170 | public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator() {
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[2572] | 171 | return dict.GetEnumerator();
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| 172 | }
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| 173 | IEnumerator IEnumerable.GetEnumerator() {
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[2623] | 174 | return dict.GetEnumerator();
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[2572] | 175 | }
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| 176 | #endregion
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[2574] | 177 |
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| 178 | #region Events
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| 179 | [field: NonSerialized]
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| 180 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsAdded;
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| 181 | protected virtual void OnItemsAdded(IEnumerable<KeyValuePair<TKey, TValue>> items) {
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[3317] | 182 | CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> handler = ItemsAdded;
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| 183 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items));
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[2574] | 184 | }
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| 185 |
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| 186 | [field: NonSerialized]
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| 187 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsRemoved;
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| 188 | protected virtual void OnItemsRemoved(IEnumerable<KeyValuePair<TKey, TValue>> items) {
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[3317] | 189 | CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> handler = ItemsRemoved;
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| 190 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items));
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[2574] | 191 | }
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| 192 |
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| 193 | [field: NonSerialized]
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| 194 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> ItemsReplaced;
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| 195 | protected virtual void OnItemsReplaced(IEnumerable<KeyValuePair<TKey, TValue>> items, IEnumerable<KeyValuePair<TKey, TValue>> oldItems) {
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[3317] | 196 | CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> handler = ItemsReplaced;
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| 197 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items, oldItems));
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[2574] | 198 | }
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| 199 |
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| 200 | [field: NonSerialized]
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| 201 | public event CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> CollectionReset;
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| 202 | protected virtual void OnCollectionReset(IEnumerable<KeyValuePair<TKey, TValue>> items, IEnumerable<KeyValuePair<TKey, TValue>> oldItems) {
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[3317] | 203 | CollectionItemsChangedEventHandler<KeyValuePair<TKey, TValue>> handler = CollectionReset;
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| 204 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<KeyValuePair<TKey, TValue>>(items, oldItems));
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[2574] | 205 | }
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[2620] | 206 |
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| 207 | [field: NonSerialized]
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| 208 | public event PropertyChangedEventHandler PropertyChanged;
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| 209 | protected virtual void OnPropertyChanged(string propertyName) {
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[3317] | 210 | PropertyChangedEventHandler handler = PropertyChanged;
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| 211 | if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
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[2620] | 212 | }
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[2574] | 213 | #endregion
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[2572] | 214 | }
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| 215 | }
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