#region License Information
/* HeuristicLab
* Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System.Collections.Generic;
using System.Windows.Forms;
using HeuristicLab.Collections;
using HeuristicLab.MainForm;
namespace HeuristicLab.Core.Views {
[Content(typeof(NamedItemCollection<>), true)]
public partial class NamedItemCollectionView : ItemCollectionView where T : class, INamedItem {
public new IObservableKeyedCollection Content {
get { return (IObservableKeyedCollection)base.Content; }
set { base.Content = value; }
}
private Dictionary listViewItemDictionary;
protected Dictionary ListViewItemDictionary {
get { return listViewItemDictionary; }
}
public NamedItemCollectionView() {
listViewItemDictionary = new Dictionary();
InitializeComponent();
Caption = "Named Item Collection";
}
public NamedItemCollectionView(IObservableKeyedCollection content)
: this() {
Content = content;
}
protected override void DeregisterContentEvents() {
Content.ItemsReplaced -= new CollectionItemsChangedEventHandler(Content_ItemsReplaced);
base.DeregisterContentEvents();
}
protected override void RegisterContentEvents() {
base.RegisterContentEvents();
Content.ItemsReplaced += new CollectionItemsChangedEventHandler(Content_ItemsReplaced);
}
protected override T CreateItem() {
T item = base.CreateItem();
if (item != null) {
item.Name = GetUniqueName(item.Name);
}
return item;
}
protected override void AddListViewItem(ListViewItem listViewItem) {
ListViewItemDictionary.Add((T)listViewItem.Tag, listViewItem);
base.AddListViewItem(listViewItem);
}
protected override void RemoveListViewItem(ListViewItem listViewItem) {
base.RemoveListViewItem(listViewItem);
ListViewItemDictionary.Remove((T)listViewItem.Tag);
}
protected override IEnumerable GetListViewItemsForItem(T item) {
return new ListViewItem[] { listViewItemDictionary[item] };
}
#region ListView Events
protected override void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
base.itemsListView_DragEnterOver(sender, e);
if (e.Effect != DragDropEffects.None) {
T item = e.Data.GetData("Value") as T;
if ((item == null) || (Content.ContainsKey(item.Name)))
e.Effect = DragDropEffects.None;
}
}
#endregion
#region Content Events
protected virtual void Content_ItemsReplaced(object sender, CollectionItemsChangedEventArgs e) {
if (InvokeRequired)
Invoke(new CollectionItemsChangedEventHandler(Content_ItemsReplaced), sender, e);
else {
foreach (T item in e.Items) {
foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
UpdateListViewItem(listViewItem);
}
}
}
#endregion
#region Helpers
protected virtual string GetUniqueName(string originalName) {
if (!Content.ContainsKey(originalName))
return originalName;
else {
string name = null;
int index = 0;
do {
index++;
name = originalName + index.ToString();
} while (Content.ContainsKey(name));
return name;
}
}
#endregion
}
}