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source: trunk/sources/HeuristicLab.Optimization.Views/3.3/RunCollectionView.cs @ 3433

Last change on this file since 3433 was 3433, checked in by swagner, 14 years ago

Adapted ReadOnly property in item collection views (#973)
File size: 11.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Collections;
23using HeuristicLab.Core;
24using HeuristicLab.Core.Views;
25using HeuristicLab.MainForm;
26using HeuristicLab.MainForm.WindowsForms;
27using System.Windows.Forms;
28using System;
29using System.Collections.Generic;
30
31namespace HeuristicLab.Optimization.Views {
32  [View("RunCollection View")]
33  [Content(typeof(RunCollection), true)]
34  [Content(typeof(IItemCollection<IRun>), false)]
35  public partial class RunCollectionView : AsynchronousContentView {
36    public new IItemCollection<IRun> Content {
37      get { return (IItemCollection<IRun>)base.Content; }
38      set { base.Content = value; }
39    }
40
41    public override bool ReadOnly {
42      get {
43        if ((Content != null) && Content.IsReadOnly) return true;
44        else return base.ReadOnly;
45      }
46      set { base.ReadOnly = value; }
47    }
48
49    public ListView ItemsListView {
50      get { return itemsListView; }
51    }
52
53    public RunCollectionView() {
54      InitializeComponent();
55      Caption = "Run Collection";
56    }
57
58    public RunCollectionView(IItemCollection<IRun> content)
59      : this() {
60      Content = content;
61    }
62
63    protected override void DeregisterContentEvents() {
64      Content.ItemsAdded -= new CollectionItemsChangedEventHandler<IRun>(Content_ItemsAdded);
65      Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<IRun>(Content_ItemsRemoved);
66      Content.CollectionReset -= new CollectionItemsChangedEventHandler<IRun>(Content_CollectionReset);
67      base.DeregisterContentEvents();
68    }
69    protected override void RegisterContentEvents() {
70      base.RegisterContentEvents();
71      Content.ItemsAdded += new CollectionItemsChangedEventHandler<IRun>(Content_ItemsAdded);
72      Content.ItemsRemoved += new CollectionItemsChangedEventHandler<IRun>(Content_ItemsRemoved);
73      Content.CollectionReset += new CollectionItemsChangedEventHandler<IRun>(Content_CollectionReset);
74    }
75
76    protected override void OnContentChanged() {
77      base.OnContentChanged();
78      Caption = "Run Collection";
79      while (itemsListView.Items.Count > 0) RemoveListViewItem(itemsListView.Items[0]);
80      viewHost.Content = null;
81
82      if (Content != null) {
83        Caption += " (" + Content.GetType().Name + ")";
84        foreach (IRun item in Content)
85          AddListViewItem(CreateListViewItem(item));
86      }
87      SetEnabledStateOfControls();
88    }
89
90    protected override void OnReadOnlyChanged() {
91      base.OnReadOnlyChanged();
92      SetEnabledStateOfControls();
93    }
94    private void SetEnabledStateOfControls() {
95      if (Content == null) {
96        itemsListView.Enabled = false;
97        detailsGroupBox.Enabled = false;
98        viewHost.Enabled = false;
99        removeButton.Enabled = false;
100      } else {
101        itemsListView.Enabled = true;
102        detailsGroupBox.Enabled = true;
103        removeButton.Enabled = !ReadOnly;
104        viewHost.Enabled = true;
105        viewHost.ReadOnly = ReadOnly;
106      }
107    }
108
109    protected virtual ListViewItem CreateListViewItem(IRun item) {
110      ListViewItem listViewItem = new ListViewItem();
111      listViewItem.Text = item.ToString();
112      listViewItem.ToolTipText = item.ItemName + ": " + item.ItemDescription;
113      itemsListView.SmallImageList.Images.Add(item.ItemImage);
114      listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
115      listViewItem.Tag = item;
116      return listViewItem;
117    }
118    protected virtual void AddListViewItem(ListViewItem listViewItem) {
119      itemsListView.Items.Add(listViewItem);
120      ((IRun)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
121      ((IRun)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
122    }
123    protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
124      ((IRun)listViewItem.Tag).ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
125      ((IRun)listViewItem.Tag).ToStringChanged -= new EventHandler(Item_ToStringChanged);
126      listViewItem.Remove();
127      foreach (ListViewItem other in itemsListView.Items)
128        if (other.ImageIndex > listViewItem.ImageIndex) other.ImageIndex--;
129      itemsListView.SmallImageList.Images.RemoveAt(listViewItem.ImageIndex);
130    }
131    protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
132      int i = listViewItem.ImageIndex;
133      listViewItem.ImageList.Images[i] = ((IRun)listViewItem.Tag).ItemImage;
134      listViewItem.ImageIndex = -1;
135      listViewItem.ImageIndex = i;
136    }
137    protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
138      if (!listViewItem.Text.Equals(listViewItem.Tag.ToString()))
139        listViewItem.Text = listViewItem.Tag.ToString();
140    }
141    protected virtual IEnumerable<ListViewItem> GetListViewItemsForItem(IRun item) {
142      foreach (ListViewItem listViewItem in itemsListView.Items) {
143        if (((IRun)listViewItem.Tag) == item)
144          yield return listViewItem;
145      }
146    }
147
148    #region ListView Events
149    protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
150      removeButton.Enabled = itemsListView.SelectedItems.Count > 0 && !ReadOnly;
151      if (itemsListView.SelectedItems.Count == 1) {
152        IRun item = (IRun)itemsListView.SelectedItems[0].Tag;
153        detailsGroupBox.Enabled = true;
154        viewHost.ViewType = null;
155        viewHost.Content = item;
156      } else {
157        viewHost.Content = null;
158        detailsGroupBox.Enabled = false;
159      }
160    }
161    protected virtual void itemsListView_SizeChanged(object sender, EventArgs e) {
162      if (itemsListView.Columns.Count > 0)
163        itemsListView.Columns[0].Width = Math.Max(0, itemsListView.Width - 25);
164    }
165    protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
166      if (e.KeyCode == Keys.Delete) {
167        if ((itemsListView.SelectedItems.Count > 0) && !ReadOnly) {
168          foreach (ListViewItem item in itemsListView.SelectedItems)
169            Content.Remove((IRun)item.Tag);
170        }
171      }
172    }
173    protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
174      if (itemsListView.SelectedItems.Count == 1) {
175        IRun item = (IRun)itemsListView.SelectedItems[0].Tag;
176        IContentView view = MainFormManager.CreateDefaultView(item);
177        if (view != null) {
178          view.ReadOnly = ReadOnly;
179          view.Locked = Locked;
180          view.Show();
181        }
182      }
183    }
184    protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
185      if (!Locked) {
186        ListViewItem listViewItem = (ListViewItem)e.Item;
187        IRun item = (IRun)listViewItem.Tag;
188        DataObject data = new DataObject();
189        data.SetData("Type", item.GetType());
190        data.SetData("Value", item);
191        if (ReadOnly) {
192          DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
193        } else {
194          DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
195          if ((result & DragDropEffects.Move) == DragDropEffects.Move)
196            Content.Remove(item);
197        }
198      }
199    }
200    protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
201      e.Effect = DragDropEffects.None;
202      if (ReadOnly) return;
203      Type type = e.Data.GetData("Type") as Type;
204      if ((!ReadOnly) && (type != null) && (typeof(IRun).IsAssignableFrom(type))) {
205        if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy;  // CTRL key
206        else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move;  // SHIFT key
207        else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
208        else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
209        else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
210      }
211    }
212    protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
213      if (e.Effect != DragDropEffects.None) {
214        IRun item = e.Data.GetData("Value") as IRun;
215        if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (IRun)item.Clone();
216        Content.Add(item);
217      }
218    }
219    #endregion
220
221    #region Button Events
222    protected virtual void removeButton_Click(object sender, EventArgs e) {
223      if (itemsListView.SelectedItems.Count > 0) {
224        foreach (ListViewItem item in itemsListView.SelectedItems)
225          Content.Remove((IRun)item.Tag);
226        itemsListView.SelectedItems.Clear();
227      }
228    }
229    #endregion
230
231    #region Content Events
232    protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IRun> e) {
233      if (InvokeRequired)
234        Invoke(new CollectionItemsChangedEventHandler<IRun>(Content_ItemsAdded), sender, e);
235      else
236        foreach (IRun item in e.Items)
237          AddListViewItem(CreateListViewItem(item));
238    }
239    protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IRun> e) {
240      if (InvokeRequired)
241        Invoke(new CollectionItemsChangedEventHandler<IRun>(Content_ItemsRemoved), sender, e);
242      else {
243        foreach (IRun item in e.Items) {
244          foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
245            RemoveListViewItem(listViewItem);
246            break;
247          }
248        }
249      }
250    }
251    protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<IRun> e) {
252      if (InvokeRequired)
253        Invoke(new CollectionItemsChangedEventHandler<IRun>(Content_CollectionReset), sender, e);
254      else {
255        foreach (IRun item in e.OldItems) {
256          foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
257            RemoveListViewItem(listViewItem);
258            break;
259          }
260        }
261        foreach (IRun item in e.Items)
262          AddListViewItem(CreateListViewItem(item));
263      }
264    }
265    #endregion
266
267    #region Item Events
268    protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
269      if (InvokeRequired)
270        Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
271      else {
272        IRun item = (IRun)sender;
273        foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
274          UpdateListViewItemImage(listViewItem);
275      }
276    }
277    protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
278      if (InvokeRequired)
279        Invoke(new EventHandler(Item_ToStringChanged), sender, e);
280      else {
281        IRun item = (IRun)sender;
282        foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
283          UpdateListViewItemText(listViewItem);
284      }
285    }
286    #endregion
287  }
288}
289
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