1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.ComponentModel;
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4 | using System.Drawing;
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5 | using System.Data;
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6 | using System.Linq;
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7 | using System.Text;
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8 | using System.Windows.Forms;
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9 | using HeuristicLab.MainForm;
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10 | using HeuristicLab.Core;
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11 | using HeuristicLab.Core.Views;
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12 | using HeuristicLab.Collections;
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13 | using HeuristicLab.PluginInfrastructure;
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14 |
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15 | namespace HeuristicLab.Problems.MetaOptimization.Views {
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16 |
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17 | [View("ItemDictionaryView")]
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18 | [Content(typeof(ItemDictionary<,>), IsDefaultView = false)]
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19 | public partial class ItemDictionaryView<K, T> : ItemView
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20 | where K : class, IItem
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21 | where T : class, IItem {
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22 | protected Dictionary<KeyValuePair<K, T>, List<ListViewItem>> itemListViewItemMapping;
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23 | protected TypeSelectorDialog typeSelectorDialog;
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24 |
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25 | public new ItemDictionary<K, T> Content {
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26 | get { return (ItemDictionary<K, T>)base.Content; }
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27 | set { base.Content = value; }
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28 | }
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29 |
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30 | public ListView ItemsListView {
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31 | get { return itemsListView; }
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32 | }
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33 |
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34 | public ItemDictionaryView() {
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35 | InitializeComponent();
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36 | itemListViewItemMapping = new Dictionary<KeyValuePair<K, T>, List<ListViewItem>>();
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37 | }
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38 |
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39 | protected override void Dispose(bool disposing) {
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40 | if (disposing) {
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41 | if (typeSelectorDialog != null) typeSelectorDialog.Dispose();
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42 | if (components != null) components.Dispose();
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43 | }
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44 | base.Dispose(disposing);
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45 | }
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46 |
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47 | protected override void DeregisterContentEvents() {
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48 | Content.ItemsAdded -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded);
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49 | Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved);
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50 | Content.CollectionReset -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset);
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51 | foreach (KeyValuePair<K, T> item in itemListViewItemMapping.Keys) {
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52 | DeregisterItemEvents(item);
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53 | }
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54 | base.DeregisterContentEvents();
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55 | }
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56 | protected override void RegisterContentEvents() {
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57 | base.RegisterContentEvents();
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58 | Content.ItemsAdded += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded);
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59 | Content.ItemsRemoved += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved);
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60 | Content.CollectionReset += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset);
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61 | }
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62 | protected virtual void DeregisterItemEvents(KeyValuePair<K, T> item) {
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63 | item.Value.ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
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64 | item.Key.ToStringChanged -= new EventHandler(Item_ToStringChanged);
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65 | }
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66 | protected virtual void RegisterItemEvents(KeyValuePair<K, T> item) {
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67 | item.Value.ItemImageChanged += new EventHandler(Item_ItemImageChanged);
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68 | item.Key.ToStringChanged += new EventHandler(Item_ToStringChanged);
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69 | }
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70 |
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71 | protected override void OnContentChanged() {
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72 | base.OnContentChanged();
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73 | itemsListView.Items.Clear();
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74 | itemListViewItemMapping.Clear();
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75 | RebuildImageList();
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76 | viewHost.Content = null;
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77 | if (Content != null) {
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78 | Caption += " (" + Content.GetType().Name + ")";
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79 | foreach (KeyValuePair<K, T> item in Content)
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80 | AddListViewItem(CreateListViewItem(item));
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81 | AdjustListViewColumnSizes();
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82 | SortItemsListView(SortOrder.Ascending);
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83 | }
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84 | }
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85 |
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86 | protected override void SetEnabledStateOfControls() {
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87 | base.SetEnabledStateOfControls();
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88 | if (Content == null) {
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89 | addButton.Enabled = false;
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90 | sortAscendingButton.Enabled = false;
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91 | sortDescendingButton.Enabled = false;
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92 | removeButton.Enabled = false;
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93 | itemsListView.Enabled = false;
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94 | detailsGroupBox.Enabled = false;
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95 | } else {
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96 | addButton.Enabled = !ReadOnly;
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97 | sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
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98 | sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
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99 | removeButton.Enabled = !ReadOnly && itemsListView.SelectedItems.Count > 0;
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100 | itemsListView.Enabled = true;
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101 | detailsGroupBox.Enabled = itemsListView.SelectedItems.Count == 1;
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102 | }
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103 | }
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104 |
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105 | protected virtual T CreateItem() {
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106 | if (typeSelectorDialog == null) {
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107 | typeSelectorDialog = new TypeSelectorDialog();
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108 | typeSelectorDialog.Caption = "Select Item";
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109 | typeSelectorDialog.TypeSelector.Caption = "Available Items";
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110 | typeSelectorDialog.TypeSelector.Configure(typeof(T), false, true);
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111 | }
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112 |
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113 | if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
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114 | try {
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115 | return (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
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116 | }
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117 | catch (Exception ex) {
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118 | ErrorHandling.ShowErrorDialog(this, ex);
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119 | }
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120 | }
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121 | return null;
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122 | }
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123 | protected virtual ListViewItem CreateListViewItem(KeyValuePair<K, T> item) {
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124 | ListViewItem listViewItem = new ListViewItem();
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125 | listViewItem.Text = item.Key.ToString();
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126 | listViewItem.ToolTipText = item.Key.ItemName + ": " + item.Key.ItemDescription;
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127 | itemsListView.SmallImageList.Images.Add(item.Value.ItemImage);
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128 | listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
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129 | listViewItem.Tag = item;
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130 | return listViewItem;
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131 | }
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132 | protected virtual void AddListViewItem(ListViewItem listViewItem) {
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133 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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134 | itemsListView.Items.Add(listViewItem);
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135 | if (!itemListViewItemMapping.ContainsKey(item)) {
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136 | RegisterItemEvents(item);
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137 | itemListViewItemMapping.Add(item, new List<ListViewItem>());
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138 | }
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139 | itemListViewItemMapping[item].Add(listViewItem);
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140 | sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
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141 | sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
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142 | }
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143 | protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
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144 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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145 | itemListViewItemMapping[item].Remove(listViewItem);
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146 | if (itemListViewItemMapping[item].Count == 0) {
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147 | itemListViewItemMapping.Remove(item);
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148 | DeregisterItemEvents(item);
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149 | }
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150 | listViewItem.Remove();
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151 | sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
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152 | sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
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153 | }
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154 | protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
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155 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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156 | int i = listViewItem.ImageIndex;
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157 | listViewItem.ImageList.Images[i] = item.Value.ItemImage;
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158 | listViewItem.ImageIndex = -1;
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159 | listViewItem.ImageIndex = i;
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160 | }
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161 | protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
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162 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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163 | listViewItem.Text = item.Key.ToString();
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164 | listViewItem.ToolTipText = item.Value.ItemName + ": " + item.Value.ItemDescription;
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165 | }
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166 | protected virtual IEnumerable<ListViewItem> GetListViewItemsForItem(KeyValuePair<K, T> item) {
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167 | List<ListViewItem> listViewItems = null;
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168 | itemListViewItemMapping.TryGetValue(item, out listViewItems);
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169 | return listViewItems == null ? Enumerable.Empty<ListViewItem>() : listViewItems;
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170 | }
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171 |
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172 | #region ListView Events
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173 | protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
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174 | removeButton.Enabled = (Content != null) && !ReadOnly && itemsListView.SelectedItems.Count > 0;
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175 | AdjustListViewColumnSizes();
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176 | if (showDetailsCheckBox.Checked) {
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177 | if (itemsListView.SelectedItems.Count == 1) {
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178 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag;
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179 | detailsGroupBox.Enabled = true;
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180 | viewHost.Content = item.Value;
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181 | } else {
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182 | viewHost.Content = null;
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183 | detailsGroupBox.Enabled = false;
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184 | }
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185 | }
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186 | }
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187 | protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
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188 | if (e.KeyCode == Keys.Delete) {
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189 | if ((itemsListView.SelectedItems.Count > 0) && !ReadOnly) {
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190 | foreach (ListViewItem item in itemsListView.SelectedItems)
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191 | Content.Remove(((KeyValuePair<K, T>)item.Tag).Key);
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192 | }
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193 | }
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194 | }
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195 | protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
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196 | if (itemsListView.SelectedItems.Count == 1) {
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197 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag;
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198 | IContentView view = MainFormManager.MainForm.ShowContent(item.Value);
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199 | if (view != null) {
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200 | view.ReadOnly = ReadOnly;
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201 | view.Locked = Locked;
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202 | }
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203 | }
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204 | }
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205 | protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
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206 | if (!Locked) {
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207 | ListViewItem listViewItem = (ListViewItem)e.Item;
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208 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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209 | DataObject data = new DataObject();
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210 | data.SetData("Type", item.GetType());
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211 | data.SetData("Value", item);
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212 | if (ReadOnly) {
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213 | DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
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214 | } else {
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215 | DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
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216 | if ((result & DragDropEffects.Move) == DragDropEffects.Move)
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217 | Content.Remove(item.Key);
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218 | }
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219 | }
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220 | }
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221 | protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
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222 | e.Effect = DragDropEffects.None;
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223 | Type type = e.Data.GetData("Type") as Type;
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224 | if (!ReadOnly && (type != null) && (typeof(T).IsAssignableFrom(type))) {
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225 | if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link; // ALT key
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226 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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227 | else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
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228 | else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
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229 | else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
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230 | }
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231 | }
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232 | protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
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233 | //if (e.Effect != DragDropEffects.None) {
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234 | // K item = e.Data.GetData("Value") as K;
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235 | // if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
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236 | // Content.Add(item);
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237 | //}
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238 | throw new NotImplementedException();
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239 | }
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240 | #endregion
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241 |
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242 | #region Button Events
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243 | protected virtual void addButton_Click(object sender, EventArgs e) {
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244 | //T item = CreateItem();
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245 | //if (item != null)
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246 | // Content.Add(item);
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247 | throw new NotImplementedException();
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248 | }
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249 | protected virtual void sortAscendingButton_Click(object sender, EventArgs e) {
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250 | SortItemsListView(SortOrder.Ascending);
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251 | }
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252 | protected virtual void sortDescendingButton_Click(object sender, EventArgs e) {
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253 | SortItemsListView(SortOrder.Descending);
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254 | }
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255 | protected virtual void removeButton_Click(object sender, EventArgs e) {
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256 | if (itemsListView.SelectedItems.Count > 0) {
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257 | foreach (ListViewItem item in itemsListView.SelectedItems)
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258 | Content.Remove(((KeyValuePair<K, T>)item.Tag).Key);
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259 | itemsListView.SelectedItems.Clear();
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260 | }
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261 | }
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262 | #endregion
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263 |
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264 | #region CheckBox Events
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265 | protected virtual void showDetailsCheckBox_CheckedChanged(object sender, EventArgs e) {
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266 | if (showDetailsCheckBox.Checked) {
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267 | splitContainer.Panel2Collapsed = false;
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268 | detailsGroupBox.Enabled = itemsListView.SelectedItems.Count == 1;
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269 | viewHost.Content = itemsListView.SelectedItems.Count == 1 ? ((KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag).Value : null;
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270 | } else {
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271 | splitContainer.Panel2Collapsed = true;
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272 | viewHost.Content = null;
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273 | }
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274 | }
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275 | #endregion
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276 |
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277 | #region Content Events
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278 | protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
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279 | if (InvokeRequired)
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280 | Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded), sender, e);
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281 | else {
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282 | foreach (KeyValuePair<K, T> item in e.Items)
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283 | AddListViewItem(CreateListViewItem(item));
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284 | AdjustListViewColumnSizes();
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285 | }
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286 |
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287 | }
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288 | protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
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289 | if (InvokeRequired)
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290 | Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved), sender, e);
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291 | else {
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292 | foreach (KeyValuePair<K, T> item in e.Items) {
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293 | //remove only the first matching ListViewItem, because the IItem could be contained multiple times in the ItemCollection
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294 | ListViewItem listviewItem = GetListViewItemsForItem(item).FirstOrDefault();
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295 | if (listviewItem != null) RemoveListViewItem(listviewItem);
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296 | }
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297 | RebuildImageList();
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298 | }
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299 | }
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300 | protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
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301 | if (InvokeRequired)
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302 | Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset), sender, e);
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303 | else {
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304 | foreach (KeyValuePair<K, T> item in e.OldItems) {
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305 | //remove only the first matching ListViewItem, because the IItem could be contained multiple times in the ItemCollection
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306 | ListViewItem listviewItem = GetListViewItemsForItem(item).FirstOrDefault();
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307 | if (listviewItem != null) RemoveListViewItem(listviewItem);
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308 | }
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309 | RebuildImageList();
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310 | foreach (KeyValuePair<K, T> item in e.Items)
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311 | AddListViewItem(CreateListViewItem(item));
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312 | }
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313 | }
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314 | #endregion
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315 |
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316 | #region Item Events
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317 | protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
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318 | if (InvokeRequired)
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319 | Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
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320 | else {
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321 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)sender;
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322 | foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
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323 | UpdateListViewItemImage(listViewItem);
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324 | }
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325 | }
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326 | protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
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327 | if (InvokeRequired)
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328 | Invoke(new EventHandler(Item_ToStringChanged), sender, e);
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329 | else {
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330 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)sender;
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331 | foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
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332 | UpdateListViewItemText(listViewItem);
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333 | }
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334 | }
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335 | #endregion
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336 |
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337 | #region Helpers
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338 | protected virtual void SortItemsListView(SortOrder sortOrder) {
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339 | itemsListView.Sorting = SortOrder.None;
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340 | itemsListView.Sorting = sortOrder;
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341 | itemsListView.Sorting = SortOrder.None;
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342 | }
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343 | protected virtual void AdjustListViewColumnSizes() {
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344 | if (itemsListView.Items.Count > 0) {
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345 | for (int i = 0; i < itemsListView.Columns.Count; i++)
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346 | itemsListView.Columns[i].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
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347 | }
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348 | }
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349 | protected virtual void RebuildImageList() {
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350 | itemsListView.SmallImageList.Images.Clear();
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351 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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352 | KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
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353 | itemsListView.SmallImageList.Images.Add(item.Value.ItemImage);
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354 | listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
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355 | }
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356 | }
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357 | #endregion
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358 | }
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359 | }
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