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source: branches/ParameterConfigurationEncoding/HeuristicLab.Encodings.ParameterConfigurationEncoding.Views/3.3/ItemDictionaryView.cs @ 8614

Last change on this file since 8614 was 8517, checked in by jkarder, 12 years ago

#1853:

  • created branch for ParameterConfigurationEncoding
  • added CreateExperimentDialog that uses the extracted encoding
File size: 15.5 KB
Line 
1using System;
2using System.Collections.Generic;
3using System.Linq;
4using System.Windows.Forms;
5using HeuristicLab.Collections;
6using HeuristicLab.Core;
7using HeuristicLab.Core.Views;
8using HeuristicLab.MainForm;
9using HeuristicLab.PluginInfrastructure;
10
11namespace HeuristicLab.Encodings.ParameterConfigurationEncoding.Views {
12
13  [View("ItemDictionaryView")]
14  [Content(typeof(ItemDictionary<,>), IsDefaultView = false)]
15  public partial class ItemDictionaryView<K, T> : ItemView
16    where K : class, IItem
17    where T : class, IItem {
18    protected Dictionary<KeyValuePair<K, T>, List<ListViewItem>> itemListViewItemMapping;
19    protected TypeSelectorDialog typeSelectorDialog;
20
21    public new ItemDictionary<K, T> Content {
22      get { return (ItemDictionary<K, T>)base.Content; }
23      set { base.Content = value; }
24    }
25
26    public ListView ItemsListView {
27      get { return itemsListView; }
28    }
29
30    public ItemDictionaryView() {
31      InitializeComponent();
32      itemListViewItemMapping = new Dictionary<KeyValuePair<K, T>, List<ListViewItem>>();
33    }
34
35    protected override void Dispose(bool disposing) {
36      if (disposing) {
37        if (typeSelectorDialog != null) typeSelectorDialog.Dispose();
38        if (components != null) components.Dispose();
39      }
40      base.Dispose(disposing);
41    }
42
43    protected override void DeregisterContentEvents() {
44      Content.ItemsAdded -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded);
45      Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved);
46      Content.CollectionReset -= new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset);
47      foreach (KeyValuePair<K, T> item in itemListViewItemMapping.Keys) {
48        DeregisterItemEvents(item);
49      }
50      base.DeregisterContentEvents();
51    }
52    protected override void RegisterContentEvents() {
53      base.RegisterContentEvents();
54      Content.ItemsAdded += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded);
55      Content.ItemsRemoved += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved);
56      Content.CollectionReset += new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset);
57    }
58    protected virtual void DeregisterItemEvents(KeyValuePair<K, T> item) {
59      item.Value.ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
60      item.Key.ToStringChanged -= new EventHandler(Item_ToStringChanged);
61    }
62    protected virtual void RegisterItemEvents(KeyValuePair<K, T> item) {
63      item.Value.ItemImageChanged += new EventHandler(Item_ItemImageChanged);
64      item.Key.ToStringChanged += new EventHandler(Item_ToStringChanged);
65    }
66
67    protected override void OnContentChanged() {
68      base.OnContentChanged();
69      itemsListView.Items.Clear();
70      itemListViewItemMapping.Clear();
71      RebuildImageList();
72      viewHost.Content = null;
73      if (Content != null) {
74        Caption += " (" + Content.GetType().Name + ")";
75        foreach (KeyValuePair<K, T> item in Content)
76          AddListViewItem(CreateListViewItem(item));
77        AdjustListViewColumnSizes();
78        SortItemsListView(SortOrder.Ascending);
79      }
80    }
81
82    protected override void SetEnabledStateOfControls() {
83      base.SetEnabledStateOfControls();
84      if (Content == null) {
85        addButton.Enabled = false;
86        sortAscendingButton.Enabled = false;
87        sortDescendingButton.Enabled = false;
88        removeButton.Enabled = false;
89        itemsListView.Enabled = false;
90        detailsGroupBox.Enabled = false;
91      } else {
92        addButton.Enabled = !ReadOnly;
93        sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
94        sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
95        removeButton.Enabled = !ReadOnly && itemsListView.SelectedItems.Count > 0;
96        itemsListView.Enabled = true;
97        detailsGroupBox.Enabled = itemsListView.SelectedItems.Count == 1;
98      }
99    }
100
101    protected virtual T CreateItem() {
102      if (typeSelectorDialog == null) {
103        typeSelectorDialog = new TypeSelectorDialog();
104        typeSelectorDialog.Caption = "Select Item";
105        typeSelectorDialog.TypeSelector.Caption = "Available Items";
106        typeSelectorDialog.TypeSelector.Configure(typeof(T), false, true);
107      }
108
109      if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
110        try {
111          return (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
112        }
113        catch (Exception ex) {
114          ErrorHandling.ShowErrorDialog(this, ex);
115        }
116      }
117      return null;
118    }
119    protected virtual ListViewItem CreateListViewItem(KeyValuePair<K, T> item) {
120      ListViewItem listViewItem = new ListViewItem();
121      listViewItem.Text = item.Key.ToString();
122      listViewItem.ToolTipText = item.Key.ItemName + ": " + item.Key.ItemDescription;
123      itemsListView.SmallImageList.Images.Add(item.Value.ItemImage);
124      listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
125      listViewItem.Tag = item;
126      return listViewItem;
127    }
128    protected virtual void AddListViewItem(ListViewItem listViewItem) {
129      KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
130      itemsListView.Items.Add(listViewItem);
131      if (!itemListViewItemMapping.ContainsKey(item)) {
132        RegisterItemEvents(item);
133        itemListViewItemMapping.Add(item, new List<ListViewItem>());
134      }
135      itemListViewItemMapping[item].Add(listViewItem);
136      sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
137      sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
138    }
139    protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
140      KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
141      itemListViewItemMapping[item].Remove(listViewItem);
142      if (itemListViewItemMapping[item].Count == 0) {
143        itemListViewItemMapping.Remove(item);
144        DeregisterItemEvents(item);
145      }
146      listViewItem.Remove();
147      sortAscendingButton.Enabled = itemsListView.Items.Count > 1;
148      sortDescendingButton.Enabled = itemsListView.Items.Count > 1;
149    }
150    protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
151      KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
152      int i = listViewItem.ImageIndex;
153      listViewItem.ImageList.Images[i] = item.Value.ItemImage;
154      listViewItem.ImageIndex = -1;
155      listViewItem.ImageIndex = i;
156    }
157    protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
158      KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
159      listViewItem.Text = item.Key.ToString();
160      listViewItem.ToolTipText = item.Value.ItemName + ": " + item.Value.ItemDescription;
161    }
162    protected virtual IEnumerable<ListViewItem> GetListViewItemsForItem(KeyValuePair<K, T> item) {
163      List<ListViewItem> listViewItems = null;
164      itemListViewItemMapping.TryGetValue(item, out listViewItems);
165      return listViewItems == null ? Enumerable.Empty<ListViewItem>() : listViewItems;
166    }
167
168    #region ListView Events
169    protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
170      removeButton.Enabled = (Content != null) && !ReadOnly && itemsListView.SelectedItems.Count > 0;
171      AdjustListViewColumnSizes();
172      if (showDetailsCheckBox.Checked) {
173        if (itemsListView.SelectedItems.Count == 1) {
174          KeyValuePair<K, T> item = (KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag;
175          detailsGroupBox.Enabled = true;
176          viewHost.Content = item.Value;
177        } else {
178          viewHost.Content = null;
179          detailsGroupBox.Enabled = false;
180        }
181      }
182    }
183    protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
184      if (e.KeyCode == Keys.Delete) {
185        if ((itemsListView.SelectedItems.Count > 0) && !ReadOnly) {
186          foreach (ListViewItem item in itemsListView.SelectedItems)
187            Content.Remove(((KeyValuePair<K, T>)item.Tag).Key);
188        }
189      }
190    }
191    protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
192      if (itemsListView.SelectedItems.Count == 1) {
193        KeyValuePair<K, T> item = (KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag;
194        IContentView view = MainFormManager.MainForm.ShowContent(item.Value);
195        if (view != null) {
196          view.ReadOnly = ReadOnly;
197          view.Locked = Locked;
198        }
199      }
200    }
201    protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
202      if (!Locked) {
203        ListViewItem listViewItem = (ListViewItem)e.Item;
204        KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
205        DataObject data = new DataObject();
206        data.SetData("Type", item.GetType());
207        data.SetData("Value", item);
208        if (ReadOnly) {
209          DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
210        } else {
211          DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
212          if ((result & DragDropEffects.Move) == DragDropEffects.Move)
213            Content.Remove(item.Key);
214        }
215      }
216    }
217    protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
218      e.Effect = DragDropEffects.None;
219      Type type = e.Data.GetData("Type") as Type;
220      if (!ReadOnly && (type != null) && (typeof(T).IsAssignableFrom(type))) {
221        if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link;  // ALT key
222        else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move;  // SHIFT key
223        else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
224        else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
225        else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
226      }
227    }
228    protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
229      //if (e.Effect != DragDropEffects.None) {
230      //  K item = e.Data.GetData("Value") as K;
231      //  if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
232      //  Content.Add(item);
233      //}
234      throw new NotImplementedException();
235    }
236    #endregion
237
238    #region Button Events
239    protected virtual void addButton_Click(object sender, EventArgs e) {
240      //T item = CreateItem();
241      //if (item != null)
242      //  Content.Add(item);
243      throw new NotImplementedException();
244    }
245    protected virtual void sortAscendingButton_Click(object sender, EventArgs e) {
246      SortItemsListView(SortOrder.Ascending);
247    }
248    protected virtual void sortDescendingButton_Click(object sender, EventArgs e) {
249      SortItemsListView(SortOrder.Descending);
250    }
251    protected virtual void removeButton_Click(object sender, EventArgs e) {
252      if (itemsListView.SelectedItems.Count > 0) {
253        foreach (ListViewItem item in itemsListView.SelectedItems)
254          Content.Remove(((KeyValuePair<K, T>)item.Tag).Key);
255        itemsListView.SelectedItems.Clear();
256      }
257    }
258    #endregion
259
260    #region CheckBox Events
261    protected virtual void showDetailsCheckBox_CheckedChanged(object sender, EventArgs e) {
262      if (showDetailsCheckBox.Checked) {
263        splitContainer.Panel2Collapsed = false;
264        detailsGroupBox.Enabled = itemsListView.SelectedItems.Count == 1;
265        viewHost.Content = itemsListView.SelectedItems.Count == 1 ? ((KeyValuePair<K, T>)itemsListView.SelectedItems[0].Tag).Value : null;
266      } else {
267        splitContainer.Panel2Collapsed = true;
268        viewHost.Content = null;
269      }
270    }
271    #endregion
272
273    #region Content Events
274    protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
275      if (InvokeRequired)
276        Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsAdded), sender, e);
277      else {
278        foreach (KeyValuePair<K, T> item in e.Items)
279          AddListViewItem(CreateListViewItem(item));
280        AdjustListViewColumnSizes();
281      }
282
283    }
284    protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
285      if (InvokeRequired)
286        Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_ItemsRemoved), sender, e);
287      else {
288        foreach (KeyValuePair<K, T> item in e.Items) {
289          //remove only the first matching ListViewItem, because the IItem could be contained multiple times in the ItemCollection
290          ListViewItem listviewItem = GetListViewItemsForItem(item).FirstOrDefault();
291          if (listviewItem != null) RemoveListViewItem(listviewItem);
292        }
293        RebuildImageList();
294      }
295    }
296    protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<KeyValuePair<K, T>> e) {
297      if (InvokeRequired)
298        Invoke(new CollectionItemsChangedEventHandler<KeyValuePair<K, T>>(Content_CollectionReset), sender, e);
299      else {
300        foreach (KeyValuePair<K, T> item in e.OldItems) {
301          //remove only the first matching ListViewItem, because the IItem could be contained multiple times in the ItemCollection
302          ListViewItem listviewItem = GetListViewItemsForItem(item).FirstOrDefault();
303          if (listviewItem != null) RemoveListViewItem(listviewItem);
304        }
305        RebuildImageList();
306        foreach (KeyValuePair<K, T> item in e.Items)
307          AddListViewItem(CreateListViewItem(item));
308      }
309    }
310    #endregion
311
312    #region Item Events
313    protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
314      if (InvokeRequired)
315        Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
316      else {
317        KeyValuePair<K, T> item = (KeyValuePair<K, T>)sender;
318        foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
319          UpdateListViewItemImage(listViewItem);
320      }
321    }
322    protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
323      if (InvokeRequired)
324        Invoke(new EventHandler(Item_ToStringChanged), sender, e);
325      else {
326        KeyValuePair<K, T> item = (KeyValuePair<K, T>)sender;
327        foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
328          UpdateListViewItemText(listViewItem);
329      }
330    }
331    #endregion
332
333    #region Helpers
334    protected virtual void SortItemsListView(SortOrder sortOrder) {
335      itemsListView.Sorting = SortOrder.None;
336      itemsListView.Sorting = sortOrder;
337      itemsListView.Sorting = SortOrder.None;
338    }
339    protected virtual void AdjustListViewColumnSizes() {
340      if (itemsListView.Items.Count > 0) {
341        for (int i = 0; i < itemsListView.Columns.Count; i++)
342          itemsListView.Columns[i].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
343      }
344    }
345    protected virtual void RebuildImageList() {
346      itemsListView.SmallImageList.Images.Clear();
347      foreach (ListViewItem listViewItem in itemsListView.Items) {
348        KeyValuePair<K, T> item = (KeyValuePair<K, T>)listViewItem.Tag;
349        itemsListView.SmallImageList.Images.Add(item.Value.ItemImage);
350        listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
351      }
352    }
353    #endregion
354  }
355}
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