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.Linq;
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24 | using System.Collections;
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25 | using System.Collections.Generic;
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26 | using System.Collections.ObjectModel;
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27 | using System.Text;
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28 | using System.Drawing;
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29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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30 | using HeuristicLab.Common;
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31 | using HeuristicLab.Common.Resources;
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32 | using HeuristicLab.Collections;
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33 |
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34 | namespace HeuristicLab.Core {
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35 | [StorableClass]
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36 | [Item("CheckedItemList<T>", "Represents a list of items that can be checked or unchecked.")]
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37 | public class CheckedItemList<T> : ItemList<T>, ICheckedItemList<T> where T : class, IItem {
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38 | [Storable]
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39 | private Dictionary<T, bool> checkedState;
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40 |
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41 | public IEnumerable<IndexedItem<T>> CheckedItems {
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42 | get {
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43 | return from i in Enumerable.Range(0, list.Count)
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44 | where ItemChecked(i)
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45 | select new IndexedItem<T>(i, list[i]);
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46 | }
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47 | }
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48 | public CheckedItemList()
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49 | : base() {
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50 | checkedState = new Dictionary<T, bool>();
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51 | }
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52 | public CheckedItemList(int capacity)
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53 | : base(capacity) {
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54 | checkedState = new Dictionary<T, bool>();
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55 | }
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56 | public CheckedItemList(IEnumerable<T> collection)
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57 | : base(collection) {
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58 | checkedState = new Dictionary<T, bool>();
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59 | foreach (var item in collection) {
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60 | if (!checkedState.ContainsKey(item))
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61 | checkedState.Add(item, false);
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62 | }
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63 | }
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64 | [StorableConstructor]
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65 | protected CheckedItemList(bool deserializing) : base(deserializing) { }
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66 |
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67 | public bool ItemChecked(T item) {
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68 | return checkedState[item];
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69 | }
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70 |
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71 | public bool ItemChecked(int itemIndex) {
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72 | return ItemChecked(this[itemIndex]);
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73 | }
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74 |
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75 | public void SetItemCheckedState(T item, bool checkedState) {
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76 | if (!this.checkedState.ContainsKey(item)) throw new ArgumentException();
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77 | if (this.checkedState[item] != checkedState) {
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78 | this.checkedState[item] = checkedState;
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79 | OnCheckedItemsChanged(new IndexedItem<T>[] { new IndexedItem<T>(IndexOf(item), item) });
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80 | }
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81 | }
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82 |
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83 | public void SetItemCheckedState(int itemIndex, bool checkedState) {
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84 | SetItemCheckedState(this[itemIndex], checkedState);
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85 | }
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86 |
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87 | protected override void OnCollectionReset(IEnumerable<IndexedItem<T>> items, IEnumerable<IndexedItem<T>> oldItems) {
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88 | foreach (var oldIndexedItem in oldItems) {
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89 | checkedState.Remove(oldIndexedItem.Value);
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90 | }
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91 | foreach (var indexedItem in items) {
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92 | if (!checkedState.ContainsKey(indexedItem.Value))
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93 | checkedState.Add(indexedItem.Value, false);
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94 | }
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95 | base.OnCollectionReset(items, oldItems);
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96 | }
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97 |
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98 | protected override void OnItemsAdded(IEnumerable<IndexedItem<T>> items) {
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99 | foreach (var indexedItem in items)
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100 | if (!checkedState.ContainsKey(indexedItem.Value))
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101 | checkedState.Add(indexedItem.Value, false);
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102 | base.OnItemsAdded(items);
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103 | }
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104 |
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105 | protected override void OnItemsRemoved(IEnumerable<IndexedItem<T>> items) {
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106 | foreach (var indexedItem in items)
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107 | checkedState.Remove(indexedItem.Value);
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108 | base.OnItemsRemoved(items);
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109 | }
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110 |
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111 | protected override void OnItemsReplaced(IEnumerable<IndexedItem<T>> items, IEnumerable<IndexedItem<T>> oldItems) {
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112 | foreach (var oldIndexedItem in oldItems)
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113 | checkedState.Remove(oldIndexedItem.Value);
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114 | foreach (var indexedItem in items)
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115 | if (!checkedState.ContainsKey(indexedItem.Value))
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116 | checkedState.Add(indexedItem.Value, false);
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117 | base.OnItemsReplaced(items, oldItems);
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118 | }
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119 |
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120 | protected virtual void OnCheckedItemsChanged(IEnumerable<IndexedItem<T>> items) {
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121 | RaiseCheckedItemsChanged(new CollectionItemsChangedEventArgs<IndexedItem<T>>(items));
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122 | }
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123 |
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124 | public event CollectionItemsChangedEventHandler<IndexedItem<T>> CheckedItemsChanged;
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125 | private void RaiseCheckedItemsChanged(CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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126 | var handler = CheckedItemsChanged;
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127 | if (handler != null) handler(this, e);
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128 | }
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129 |
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130 | public object Clone() {
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131 | return Clone(new Cloner());
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132 | }
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133 | public virtual IDeepCloneable Clone(Cloner cloner) {
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134 | CheckedItemList<T> clone = (CheckedItemList<T>)Activator.CreateInstance(this.GetType());
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135 | cloner.RegisterClonedObject(this, clone);
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136 | clone.list = new List<T>(this.Select(x => (T)cloner.Clone(x)));
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137 | clone.checkedState = new Dictionary<T, bool>();
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138 | foreach (var pair in checkedState)
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139 | clone.checkedState.Add((T)cloner.Clone(pair.Key), pair.Value);
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140 | return clone;
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141 | }
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142 | }
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143 | }
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