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source: trunk/sources/HeuristicLab.Core.Views/3.3/CheckedItemCollectionView.cs @ 6233

Last change on this file since 6233 was 6233, checked in by mkommend, 12 years ago

#1532:

  • Enabled renaming of symbols
  • Fixed cloning of grammers
  • Added readonly attribute in grammars to lock grammars during the algorithm run
  • Removed useless clone method in cloner
  • Changed CheckedItemCollectionViews to enable scrolling during the locked state
File size: 3.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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 System.Drawing;
23using System.Windows.Forms;
24using HeuristicLab.Collections;
25using HeuristicLab.MainForm;
26
27namespace HeuristicLab.Core.Views {
28  [View("CheckedItemCollection View")]
29  [Content(typeof(ICheckedItemCollection<>), true)]
30  [Content(typeof(CheckedItemCollection<>), true)]
31  public partial class CheckedItemCollectionView<T> : ItemCollectionView<T> where T : class, IItem {
32    public new ICheckedItemCollection<T> Content {
33      get { return (ICheckedItemCollection<T>)base.Content; }
34      set { base.Content = value; }
35    }
36
37    public CheckedItemCollectionView()
38      : base() {
39      InitializeComponent();
40    }
41
42    protected override void RegisterContentEvents() {
43      Content.CheckedItemsChanged += new HeuristicLab.Collections.CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged);
44      base.RegisterContentEvents();
45    }
46
47    protected override void DeregisterContentEvents() {
48      Content.CheckedItemsChanged -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged);
49      base.DeregisterContentEvents();
50    }
51
52    private Color backupColor = Color.Empty;
53    protected override void SetEnabledStateOfControls() {
54      if (backupColor == Color.Empty) backupColor = base.itemsListView.BackColor;
55      base.SetEnabledStateOfControls();
56      if (ReadOnly || Locked)
57        base.itemsListView.BackColor = ListView.DefaultBackColor;
58      else
59        base.itemsListView.BackColor = backupColor;
60    }
61
62    protected override ListViewItem CreateListViewItem(T item) {
63      ListViewItem listViewItem = base.CreateListViewItem(item);
64      listViewItem.Checked = Content.ItemChecked(item);
65      return listViewItem;
66    }
67
68    #region ListView Events
69    private bool doubleClick;
70    protected virtual void itemsListView_ItemCheck(object sender, ItemCheckEventArgs e) {
71      if (doubleClick) {
72        e.NewValue = e.CurrentValue;
73        doubleClick = false;
74      } else {
75        var checkedItem = (T)itemsListView.Items[e.Index].Tag;
76        bool check = e.NewValue == CheckState.Checked;
77        if (Content.ItemChecked(checkedItem) != check) {
78          if (!ReadOnly && !Locked) Content.SetItemCheckedState(checkedItem, check);
79          else e.NewValue = e.CurrentValue;
80        }
81      }
82    }
83    protected void itemsListView_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) {
84      if (e.Clicks > 1)
85        doubleClick = true;
86    }
87    #endregion
88
89    #region Content Events
90    protected virtual void Content_CheckedItemsChanged(object sender, HeuristicLab.Collections.CollectionItemsChangedEventArgs<T> e) {
91      if (InvokeRequired)
92        Invoke(new CollectionItemsChangedEventHandler<T>(Content_CheckedItemsChanged), sender, e);
93      else {
94        foreach (T item in e.Items) {
95          foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
96            if (listViewItem.Checked != Content.ItemChecked(item))
97              listViewItem.Checked = Content.ItemChecked(item);
98          }
99        }
100      }
101    }
102    #endregion
103  }
104}
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