[2572] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[15583] | 3 | * Copyright (C) 2002-2018 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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[13597] | 22 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2572] | 23 | using System;
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| 24 | using System.Collections;
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| 25 | using System.Collections.Generic;
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[2620] | 26 | using System.ComponentModel;
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[13597] | 27 | using System.Linq;
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[2572] | 28 |
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| 29 | namespace HeuristicLab.Collections {
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[3560] | 30 | [StorableClass]
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[2572] | 31 | [Serializable]
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[2574] | 32 | public class ObservableCollection<T> : IObservableCollection<T> {
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[3560] | 33 | [Storable]
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[3286] | 34 | protected List<T> list;
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[2572] | 35 |
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| 36 | #region Properties
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| 37 | public int Capacity {
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| 38 | get { return list.Capacity; }
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[2620] | 39 | set {
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| 40 | if (list.Capacity != value) {
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| 41 | list.Capacity = value;
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| 42 | OnPropertyChanged("Capacity");
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| 43 | }
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| 44 | }
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[2572] | 45 | }
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| 46 | public int Count {
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| 47 | get { return list.Count; }
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| 48 | }
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[2618] | 49 | bool ICollection<T>.IsReadOnly {
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[2572] | 50 | get { return ((ICollection<T>)list).IsReadOnly; }
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| 51 | }
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| 52 | #endregion
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| 53 |
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| 54 | #region Constructors
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| 55 | public ObservableCollection() {
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| 56 | list = new List<T>();
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| 57 | }
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| 58 | public ObservableCollection(int capacity) {
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| 59 | list = new List<T>(capacity);
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| 60 | }
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| 61 | public ObservableCollection(IEnumerable<T> collection) {
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| 62 | list = new List<T>(collection);
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| 63 | }
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[3560] | 64 | [StorableConstructor]
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| 65 | protected ObservableCollection(bool deserializing) { }
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[2572] | 66 | #endregion
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| 67 |
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| 68 | #region Access
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| 69 | public bool Contains(T item) {
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| 70 | return list.Contains(item);
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| 71 | }
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| 72 |
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| 73 | public bool Exists(Predicate<T> match) {
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| 74 | return list.Exists(match);
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| 75 | }
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| 76 |
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| 77 | public T Find(Predicate<T> match) {
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| 78 | return list.Find(match);
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| 79 | }
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| 80 | public ICollection<T> FindAll(Predicate<T> match) {
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| 81 | return list.FindAll(match);
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| 82 | }
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| 83 | public T FindLast(Predicate<T> match) {
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| 84 | return list.FindLast(match);
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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 | public void Add(T item) {
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[2620] | 90 | int capacity = list.Capacity;
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[2572] | 91 | list.Add(item);
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[2620] | 92 | if (list.Capacity != capacity)
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| 93 | OnPropertyChanged("Capacity");
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| 94 | OnPropertyChanged("Count");
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[2572] | 95 | OnItemsAdded(new T[] { item });
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| 96 | }
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| 97 | public void AddRange(IEnumerable<T> collection) {
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[2620] | 98 | int capacity = list.Capacity;
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[13597] | 99 | ICollection<T> items = collection as ICollection<T> ?? collection.ToList();
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| 100 | list.AddRange(items);
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| 101 | if (items.Count > 0) {
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[2620] | 102 | if (list.Capacity != capacity)
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| 103 | OnPropertyChanged("Capacity");
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| 104 | OnPropertyChanged("Count");
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[13597] | 105 | OnItemsAdded(items);
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[2620] | 106 | }
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[2572] | 107 | }
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| 108 |
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| 109 | public bool Remove(T item) {
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| 110 | if (list.Remove(item)) {
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[2620] | 111 | OnPropertyChanged("Count");
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[2572] | 112 | OnItemsRemoved(new T[] { item });
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| 113 | return true;
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| 114 | }
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| 115 | return false;
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| 116 | }
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| 117 | public void RemoveRange(IEnumerable<T> collection) {
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[2573] | 118 | if (collection == null) throw new ArgumentNullException();
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[2572] | 119 | List<T> items = new List<T>();
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| 120 | foreach (T item in collection) {
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| 121 | if (list.Remove(item))
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| 122 | items.Add(item);
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| 123 | }
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[2620] | 124 | if (items.Count > 0) {
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| 125 | OnPropertyChanged("Count");
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[2572] | 126 | OnItemsRemoved(items);
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[2620] | 127 | }
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[2572] | 128 | }
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| 129 | public int RemoveAll(Predicate<T> match) {
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| 130 | List<T> items = list.FindAll(match);
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[2620] | 131 | int result = 0;
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| 132 | if (items.Count > 0) {
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| 133 | result = list.RemoveAll(match);
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| 134 | OnPropertyChanged("Count");
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| 135 | OnItemsRemoved(items);
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| 136 | }
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[2572] | 137 | return result;
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| 138 | }
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| 139 |
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| 140 | public void Clear() {
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[2620] | 141 | if (list.Count > 0) {
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| 142 | T[] items = list.ToArray();
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| 143 | list.Clear();
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| 144 | OnPropertyChanged("Count");
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| 145 | OnCollectionReset(new T[0], items);
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| 146 | }
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[2572] | 147 | }
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| 148 | #endregion
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| 149 |
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| 150 | #region Conversion
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[2618] | 151 | public ReadOnlyObservableCollection<T> AsReadOnly() {
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| 152 | return new ReadOnlyObservableCollection<T>(this);
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[2572] | 153 | }
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| 154 | public T[] ToArray() {
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| 155 | return list.ToArray();
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| 156 | }
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| 157 | public void CopyTo(T[] array, int arrayIndex) {
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| 158 | list.CopyTo(array, arrayIndex);
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| 159 | }
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| 160 | public ICollection<TOutput> ConvertAll<TOutput>(Converter<T, TOutput> converter) {
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| 161 | return list.ConvertAll<TOutput>(converter);
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| 162 | }
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| 163 | #endregion
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| 164 |
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| 165 | #region Processing
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| 166 | public void ForEach(Action<T> action) {
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| 167 | list.ForEach(action);
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| 168 | }
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| 169 | public bool TrueForAll(Predicate<T> match) {
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| 170 | return list.TrueForAll(match);
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| 171 | }
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| 172 | #endregion
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| 173 |
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| 174 | #region Enumeration
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| 175 | public IEnumerator<T> GetEnumerator() {
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| 176 | return ((IEnumerable<T>)list).GetEnumerator();
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| 177 | }
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| 178 | IEnumerator IEnumerable.GetEnumerator() {
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| 179 | return ((IEnumerable)list).GetEnumerator();
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| 180 | }
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| 181 | #endregion
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| 182 |
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| 183 | #region Helpers
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| 184 | public void TrimExcess() {
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[2620] | 185 | int capacity = list.Capacity;
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[2572] | 186 | list.TrimExcess();
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[2620] | 187 | if (list.Capacity != capacity)
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| 188 | OnPropertyChanged("Capacity");
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[2572] | 189 | }
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| 190 | #endregion
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[2574] | 191 |
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| 192 | #region Events
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| 193 | [field: NonSerialized]
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| 194 | public event CollectionItemsChangedEventHandler<T> ItemsAdded;
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| 195 | protected virtual void OnItemsAdded(IEnumerable<T> items) {
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[3317] | 196 | CollectionItemsChangedEventHandler<T> handler = ItemsAdded;
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| 197 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
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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<T> ItemsRemoved;
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| 202 | protected virtual void OnItemsRemoved(IEnumerable<T> items) {
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[3317] | 203 | CollectionItemsChangedEventHandler<T> handler = ItemsRemoved;
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| 204 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
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[2574] | 205 | }
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| 206 |
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| 207 | [field: NonSerialized]
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| 208 | public event CollectionItemsChangedEventHandler<T> CollectionReset;
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| 209 | protected virtual void OnCollectionReset(IEnumerable<T> items, IEnumerable<T> oldItems) {
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[3317] | 210 | CollectionItemsChangedEventHandler<T> handler = CollectionReset;
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| 211 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items, oldItems));
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[2574] | 212 | }
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[2620] | 213 |
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| 214 | [field: NonSerialized]
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| 215 | public event PropertyChangedEventHandler PropertyChanged;
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| 216 | protected virtual void OnPropertyChanged(string propertyName) {
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[3317] | 217 | PropertyChangedEventHandler handler = PropertyChanged;
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| 218 | if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
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[2620] | 219 | }
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[2574] | 220 | #endregion
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[2572] | 221 | }
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| 222 | }
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