[2655] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[2790] | 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2655] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Collections.Generic;
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| 24 | using System.Windows.Forms;
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| 25 | using HeuristicLab.Collections;
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| 26 | using HeuristicLab.MainForm;
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[2713] | 27 | using HeuristicLab.MainForm.WindowsForms;
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[2655] | 28 |
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| 29 | namespace HeuristicLab.Core.Views {
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[2917] | 30 | [View("ItemCollection View")]
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[2727] | 31 | [Content(typeof(ItemCollection<>), true)]
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| 32 | [Content(typeof(IObservableCollection<>), false)]
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[2713] | 33 | public partial class ItemCollectionView<T> : ContentView where T : class, IItem {
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| 34 | public new IObservableCollection<T> Content {
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| 35 | get { return (IObservableCollection<T>)base.Content; }
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| 36 | set { base.Content = value; }
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[2655] | 37 | }
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| 38 |
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| 39 | public ListView ItemsListView {
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| 40 | get { return itemsListView; }
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| 41 | }
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| 42 |
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| 43 | public ItemCollectionView() {
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| 44 | InitializeComponent();
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| 45 | Caption = "Item Collection";
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| 46 | }
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[2875] | 47 |
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[2727] | 48 | public ItemCollectionView(IObservableCollection<T> content)
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| 49 | : this() {
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| 50 | Content = content;
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| 51 | }
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[2655] | 52 |
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[2713] | 53 | protected override void DeregisterContentEvents() {
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| 54 | Content.ItemsAdded -= new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
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| 55 | Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
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| 56 | Content.CollectionReset -= new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
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| 57 | base.DeregisterContentEvents();
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[2655] | 58 | }
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[2713] | 59 | protected override void RegisterContentEvents() {
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| 60 | base.RegisterContentEvents();
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| 61 | Content.ItemsAdded += new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded);
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| 62 | Content.ItemsRemoved += new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved);
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| 63 | Content.CollectionReset += new CollectionItemsChangedEventHandler<T>(Content_CollectionReset);
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[2655] | 64 | }
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| 65 |
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[2713] | 66 | protected override void OnContentChanged() {
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| 67 | base.OnContentChanged();
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[2655] | 68 | Caption = "Item Collection";
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| 69 | while (itemsListView.Items.Count > 0) RemoveListViewItem(itemsListView.Items[0]);
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| 70 | itemsListView.Enabled = false;
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| 71 | detailsGroupBox.Enabled = false;
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[2713] | 72 | viewHost.Content = null;
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[2655] | 73 | addButton.Enabled = false;
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| 74 | sortAscendingButton.Enabled = false;
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| 75 | sortDescendingButton.Enabled = false;
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| 76 | removeButton.Enabled = false;
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| 77 |
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[2713] | 78 | if (Content != null) {
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| 79 | Caption += " (" + Content.GetType().Name + ")";
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[2655] | 80 | itemsListView.Enabled = true;
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[2713] | 81 | addButton.Enabled = !Content.IsReadOnly;
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| 82 | foreach (T item in Content)
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[2655] | 83 | AddListViewItem(CreateListViewItem(item));
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| 84 | sortAscendingButton.Enabled = itemsListView.Items.Count > 0;
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| 85 | sortDescendingButton.Enabled = itemsListView.Items.Count > 0;
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| 86 | SortItemsListView(SortOrder.Ascending);
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| 87 | }
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| 88 | }
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| 89 |
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| 90 | protected virtual T CreateItem() {
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| 91 | try {
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| 92 | return (T)Activator.CreateInstance(typeof(T));
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| 93 | } catch(Exception ex) {
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| 94 | Auxiliary.ShowErrorMessageBox(ex);
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| 95 | return null;
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| 96 | }
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| 97 | }
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| 98 | protected virtual ListViewItem CreateListViewItem(T item) {
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| 99 | if (!itemsListView.SmallImageList.Images.ContainsKey(item.GetType().FullName))
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| 100 | itemsListView.SmallImageList.Images.Add(item.GetType().FullName, item.ItemImage);
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| 101 |
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| 102 | ListViewItem listViewItem = new ListViewItem();
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| 103 | listViewItem.Text = item.ToString();
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| 104 | listViewItem.ToolTipText = item.ItemName + ": " + item.ItemDescription;
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| 105 | listViewItem.ImageIndex = itemsListView.SmallImageList.Images.IndexOfKey(item.GetType().FullName);
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| 106 | listViewItem.Tag = item;
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| 107 | return listViewItem;
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| 108 | }
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| 109 | protected virtual void AddListViewItem(ListViewItem listViewItem) {
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| 110 | itemsListView.Items.Add(listViewItem);
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| 111 | ((T)listViewItem.Tag).Changed += new ChangedEventHandler(Item_Changed);
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| 112 | sortAscendingButton.Enabled = itemsListView.Items.Count > 0;
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| 113 | sortDescendingButton.Enabled = itemsListView.Items.Count > 0;
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| 114 | }
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| 115 | protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
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| 116 | ((T)listViewItem.Tag).Changed -= new ChangedEventHandler(Item_Changed);
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| 117 | listViewItem.Remove();
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| 118 | sortAscendingButton.Enabled = itemsListView.Items.Count > 0;
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| 119 | sortDescendingButton.Enabled = itemsListView.Items.Count > 0;
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| 120 | }
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| 121 | protected virtual void UpdateListViewItem(ListViewItem listViewItem) {
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| 122 | if (!listViewItem.Text.Equals(listViewItem.Tag.ToString())) {
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| 123 | listViewItem.Text = listViewItem.Tag.ToString();
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| 124 | }
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| 125 | }
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| 126 | protected virtual IEnumerable<ListViewItem> GetListViewItemsForItem(T item) {
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| 127 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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| 128 | if (((T)listViewItem.Tag) == item)
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| 129 | yield return listViewItem;
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| 130 | }
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| 131 | }
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| 132 |
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| 133 | #region ListView Events
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| 134 | protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
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[2713] | 135 | removeButton.Enabled = itemsListView.SelectedItems.Count > 0 && !Content.IsReadOnly;
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[2655] | 136 | if (itemsListView.SelectedItems.Count == 1) {
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| 137 | T item = (T)itemsListView.SelectedItems[0].Tag;
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[2870] | 138 | detailsGroupBox.Enabled = true;
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[2713] | 139 | viewHost.Content = item;
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[2655] | 140 | } else {
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[2713] | 141 | viewHost.Content = null;
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[2655] | 142 | detailsGroupBox.Enabled = false;
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| 143 | }
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| 144 | }
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[2676] | 145 | protected virtual void itemsListView_SizeChanged(object sender, EventArgs e) {
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[2655] | 146 | if (itemsListView.Columns.Count > 0)
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| 147 | itemsListView.Columns[0].Width = Math.Max(0, itemsListView.Width - 25);
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| 148 | }
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| 149 | protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
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| 150 | if (e.KeyCode == Keys.Delete) {
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[2713] | 151 | if ((itemsListView.SelectedItems.Count > 0) && !Content.IsReadOnly) {
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[2655] | 152 | foreach (ListViewItem item in itemsListView.SelectedItems)
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[2713] | 153 | Content.Remove((T)item.Tag);
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[2655] | 154 | }
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| 155 | }
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| 156 | }
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| 157 | protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
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| 158 | if (itemsListView.SelectedItems.Count == 1) {
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| 159 | T item = (T)itemsListView.SelectedItems[0].Tag;
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| 160 | IView view = MainFormManager.CreateDefaultView(item);
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[2708] | 161 | if (view != null) view.Show();
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[2655] | 162 | }
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| 163 | }
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| 164 | protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
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| 165 | ListViewItem listViewItem = (ListViewItem)e.Item;
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| 166 | T item = (T)listViewItem.Tag;
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| 167 | DataObject data = new DataObject();
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| 168 | data.SetData("Type", item.GetType());
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| 169 | data.SetData("Value", item);
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[2713] | 170 | if (Content.IsReadOnly) {
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[2655] | 171 | DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
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| 172 | } else {
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| 173 | DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
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| 174 | if ((result & DragDropEffects.Move) == DragDropEffects.Move)
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[2713] | 175 | Content.Remove(item);
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[2655] | 176 | }
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| 177 | }
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| 178 | protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
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| 179 | e.Effect = DragDropEffects.None;
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| 180 | Type type = e.Data.GetData("Type") as Type;
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[2713] | 181 | if ((!Content.IsReadOnly) && (type != null) && (typeof(T).IsAssignableFrom(type))) {
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[2655] | 182 | if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy; // CTRL key
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[2694] | 183 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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| 184 | else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
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| 185 | else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
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| 186 | else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
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[2655] | 187 | }
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| 188 | }
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| 189 | protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
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| 190 | if (e.Effect != DragDropEffects.None) {
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| 191 | T item = e.Data.GetData("Value") as T;
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| 192 | if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
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[2713] | 193 | Content.Add(item);
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[2655] | 194 | }
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| 195 | }
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| 196 | #endregion
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| 197 |
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| 198 | #region Button Events
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| 199 | protected virtual void addButton_Click(object sender, EventArgs e) {
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| 200 | T item = CreateItem();
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| 201 | if (item != null)
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[2713] | 202 | Content.Add(item);
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[2655] | 203 | }
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[2676] | 204 | protected virtual void sortAscendingButton_Click(object sender, EventArgs e) {
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[2655] | 205 | SortItemsListView(SortOrder.Ascending);
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| 206 | }
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[2676] | 207 | protected virtual void sortDescendingButton_Click(object sender, EventArgs e) {
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[2655] | 208 | SortItemsListView(SortOrder.Descending);
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| 209 | }
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| 210 | protected virtual void removeButton_Click(object sender, EventArgs e) {
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| 211 | if (itemsListView.SelectedItems.Count > 0) {
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| 212 | foreach (ListViewItem item in itemsListView.SelectedItems)
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[2713] | 213 | Content.Remove((T)item.Tag);
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[2655] | 214 | itemsListView.SelectedItems.Clear();
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| 215 | }
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| 216 | }
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| 217 | #endregion
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| 218 |
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[2713] | 219 | #region Content Events
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| 220 | protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
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[2655] | 221 | if (InvokeRequired)
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[2713] | 222 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsAdded), sender, e);
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[2655] | 223 | else
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| 224 | foreach (T item in e.Items)
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| 225 | AddListViewItem(CreateListViewItem(item));
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| 226 | }
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[2713] | 227 | protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
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[2655] | 228 | if (InvokeRequired)
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[2713] | 229 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_ItemsRemoved), sender, e);
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[2655] | 230 | else {
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| 231 | foreach (T item in e.Items) {
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| 232 | foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
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| 233 | RemoveListViewItem(listViewItem);
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| 234 | break;
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| 235 | }
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| 236 | }
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| 237 | }
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| 238 | }
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[2713] | 239 | protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
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[2655] | 240 | if (InvokeRequired)
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[2713] | 241 | Invoke(new CollectionItemsChangedEventHandler<T>(Content_CollectionReset), sender, e);
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[2655] | 242 | else {
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| 243 | foreach (T item in e.OldItems) {
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| 244 | foreach (ListViewItem listViewItem in GetListViewItemsForItem(item)) {
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| 245 | RemoveListViewItem(listViewItem);
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| 246 | break;
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| 247 | }
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| 248 | }
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| 249 | foreach (T item in e.Items)
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| 250 | AddListViewItem(CreateListViewItem(item));
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| 251 | }
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| 252 | }
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| 253 | #endregion
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| 254 |
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| 255 | #region Item Events
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[2676] | 256 | protected virtual void Item_Changed(object sender, ChangedEventArgs e) {
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[2655] | 257 | if (InvokeRequired)
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| 258 | Invoke(new ChangedEventHandler(Item_Changed), sender, e);
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| 259 | else {
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| 260 | T item = (T)sender;
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| 261 | foreach (ListViewItem listViewItem in GetListViewItemsForItem(item))
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| 262 | UpdateListViewItem(listViewItem);
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| 263 | }
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| 264 | }
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| 265 | #endregion
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| 266 |
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| 267 | #region Helpers
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[2676] | 268 | protected virtual void SortItemsListView(SortOrder sortOrder) {
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[2655] | 269 | itemsListView.Sorting = sortOrder;
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| 270 | itemsListView.Sort();
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| 271 | itemsListView.Sorting = SortOrder.None;
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| 272 | }
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| 273 | #endregion
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| 274 | }
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| 275 | }
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