[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.Drawing;
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| 25 | using System.Windows.Forms;
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| 26 | using HeuristicLab.Collections;
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| 27 | using HeuristicLab.MainForm;
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[2713] | 28 | using HeuristicLab.MainForm.WindowsForms;
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[2655] | 29 |
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| 30 | namespace HeuristicLab.Core.Views {
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| 31 | /// <summary>
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| 32 | /// The visual representation of all variables in a specified scope.
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| 33 | /// </summary>
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[2917] | 34 | [View("ItemList View")]
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[2727] | 35 | [Content(typeof(ItemList<>), true)]
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[3393] | 36 | [Content(typeof(IItemList<>), false)]
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[3228] | 37 | public partial class ItemListView<T> : AsynchronousContentView where T : class, IItem {
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[3407] | 38 | protected TypeSelectorDialog typeSelectorDialog;
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| 39 |
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[2655] | 40 | /// <summary>
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| 41 | /// Gets or sets the scope whose variables to represent visually.
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| 42 | /// </summary>
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| 43 | /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="ViewBase"/>.
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| 44 | /// No won data storage present.</remarks>
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[3393] | 45 | public new IItemList<T> Content {
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| 46 | get { return (IItemList<T>)base.Content; }
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[2713] | 47 | set { base.Content = value; }
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[2655] | 48 | }
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| 49 |
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| 50 | public ListView ItemsListView {
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| 51 | get { return itemsListView; }
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| 52 | }
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| 53 |
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| 54 | /// <summary>
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| 55 | /// Initializes a new instance of <see cref="VariablesScopeView"/> with caption "Variables Scope View".
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| 56 | /// </summary>
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| 57 | public ItemListView() {
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| 58 | InitializeComponent();
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| 59 | Caption = "Item List";
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| 60 | }
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[3393] | 61 | public ItemListView(IItemList<T> content)
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[2727] | 62 | : this() {
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| 63 | Content = content;
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| 64 | }
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[2655] | 65 |
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| 66 | /// <summary>
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| 67 | /// Removes the eventhandlers from the underlying <see cref="IScope"/>.
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| 68 | /// </summary>
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| 69 | /// <remarks>Calls <see cref="ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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[2713] | 70 | protected override void DeregisterContentEvents() {
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| 71 | Content.ItemsAdded -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsAdded);
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| 72 | Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsRemoved);
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| 73 | Content.ItemsReplaced -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced);
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| 74 | Content.ItemsMoved -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved);
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| 75 | Content.CollectionReset -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset);
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| 76 | base.DeregisterContentEvents();
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[2655] | 77 | }
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| 78 |
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| 79 | /// <summary>
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| 80 | /// Adds eventhandlers to the underlying <see cref="IScope"/>.
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| 81 | /// </summary>
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| 82 | /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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[2713] | 83 | protected override void RegisterContentEvents() {
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| 84 | base.RegisterContentEvents();
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| 85 | Content.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsAdded);
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| 86 | Content.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsRemoved);
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| 87 | Content.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced);
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| 88 | Content.ItemsMoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved);
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| 89 | Content.CollectionReset += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset);
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[2655] | 90 | }
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| 91 |
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[2713] | 92 | protected override void OnContentChanged() {
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| 93 | base.OnContentChanged();
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[2655] | 94 | Caption = "Item List";
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| 95 | while (itemsListView.Items.Count > 0) RemoveListViewItem(itemsListView.Items[0]);
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[2713] | 96 | viewHost.Content = null;
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| 97 | if (Content != null) {
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| 98 | Caption += " (" + Content.GetType().Name + ")";
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| 99 | foreach (T item in Content)
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[2655] | 100 | AddListViewItem(CreateListViewItem(item));
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| 101 | }
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[3362] | 102 | SetEnabledStateOfControls();
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[2655] | 103 | }
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| 104 |
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[3362] | 105 | protected override void OnReadOnlyChanged() {
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| 106 | base.OnReadOnlyChanged();
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| 107 | SetEnabledStateOfControls();
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| 108 | }
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| 109 |
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| 110 | private void SetEnabledStateOfControls() {
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| 111 | if (Content == null) {
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| 112 | addButton.Enabled = false;
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| 113 | moveUpButton.Enabled = false;
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| 114 | moveDownButton.Enabled = false;
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| 115 | removeButton.Enabled = false;
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| 116 | itemsListView.Enabled = false;
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| 117 | detailsGroupBox.Enabled = false;
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| 118 | } else {
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| 119 | addButton.Enabled = !Content.IsReadOnly && !ReadOnly;
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| 120 | moveUpButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 121 | itemsListView.SelectedIndices[0] != 0 &&
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| 122 | !Content.IsReadOnly && !ReadOnly;
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| 123 | moveDownButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 124 | itemsListView.SelectedIndices[0] != itemsListView.Items.Count - 1 &&
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| 125 | !Content.IsReadOnly && !ReadOnly;
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| 126 | removeButton.Enabled = itemsListView.SelectedItems.Count > 0 &&
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| 127 | !Content.IsReadOnly && !ReadOnly;
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| 128 | itemsListView.Enabled = true;
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| 129 | detailsGroupBox.Enabled = true;
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| 130 | viewHost.ReadOnly = ReadOnly;
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| 131 | }
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| 132 | }
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| 133 |
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[2655] | 134 | protected virtual T CreateItem() {
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[3407] | 135 | if (typeSelectorDialog == null) {
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| 136 | typeSelectorDialog = new TypeSelectorDialog();
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| 137 | typeSelectorDialog.Caption = "Select Item";
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| 138 | typeSelectorDialog.TypeSelector.Caption = "Available Items";
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| 139 | typeSelectorDialog.TypeSelector.Configure(typeof(T), false, false);
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[2655] | 140 | }
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[3407] | 141 |
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| 142 | if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
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| 143 | try {
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| 144 | return (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
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| 145 | }
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| 146 | catch (Exception ex) {
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| 147 | Auxiliary.ShowErrorMessageBox(ex);
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| 148 | }
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[2655] | 149 | }
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[3407] | 150 | return null;
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[2655] | 151 | }
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| 152 | protected virtual ListViewItem CreateListViewItem(T item) {
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| 153 | ListViewItem listViewItem = new ListViewItem();
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| 154 | listViewItem.Text = item.ToString();
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| 155 | listViewItem.ToolTipText = item.ItemName + ": " + item.ItemDescription;
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| 156 | listViewItem.Tag = item;
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[3327] | 157 | itemsListView.SmallImageList.Images.Add(item.ItemImage);
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| 158 | listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
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[2655] | 159 | return listViewItem;
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| 160 | }
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| 161 | protected virtual void AddListViewItem(ListViewItem listViewItem) {
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| 162 | itemsListView.Items.Add(listViewItem);
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[3306] | 163 | ((T)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
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[2932] | 164 | ((T)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
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[3362] | 165 | AdjustListViewColumnSizes();
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[2655] | 166 | }
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| 167 | protected virtual void InsertListViewItem(int index, ListViewItem listViewItem) {
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| 168 | itemsListView.Items.Insert(index, listViewItem);
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[3306] | 169 | ((T)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
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[2932] | 170 | ((T)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
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[3362] | 171 | AdjustListViewColumnSizes();
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[2655] | 172 | }
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| 173 | protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
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[3306] | 174 | ((T)listViewItem.Tag).ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
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[2932] | 175 | ((T)listViewItem.Tag).ToStringChanged -= new EventHandler(Item_ToStringChanged);
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[2655] | 176 | listViewItem.Remove();
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[3341] | 177 | foreach (ListViewItem other in itemsListView.Items)
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| 178 | if (other.ImageIndex > listViewItem.ImageIndex) other.ImageIndex--;
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| 179 | itemsListView.SmallImageList.Images.RemoveAt(listViewItem.ImageIndex);
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[2655] | 180 | }
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[3327] | 181 | protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
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| 182 | int i = listViewItem.ImageIndex;
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| 183 | listViewItem.ImageList.Images[i] = ((T)listViewItem.Tag).ItemImage;
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| 184 | listViewItem.ImageIndex = -1;
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| 185 | listViewItem.ImageIndex = i;
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[2655] | 186 | }
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[3327] | 187 | protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
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| 188 | if (!listViewItem.Text.Equals(listViewItem.Tag.ToString()))
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| 189 | listViewItem.Text = listViewItem.Tag.ToString();
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| 190 | }
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[2655] | 191 |
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[3362] | 192 | #region ListView Events
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[2655] | 193 | protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
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| 194 | moveUpButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 195 | itemsListView.SelectedIndices[0] != 0 &&
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[3362] | 196 | !Content.IsReadOnly && !ReadOnly;
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[2655] | 197 | moveDownButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 198 | itemsListView.SelectedIndices[0] != itemsListView.Items.Count - 1 &&
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[3362] | 199 | !Content.IsReadOnly && !ReadOnly;
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[2655] | 200 | removeButton.Enabled = itemsListView.SelectedItems.Count > 0 &&
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[3362] | 201 | !Content.IsReadOnly && !ReadOnly;
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[2655] | 202 |
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| 203 | if (itemsListView.SelectedItems.Count == 1) {
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| 204 | T item = (T)itemsListView.SelectedItems[0].Tag;
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[2870] | 205 | detailsGroupBox.Enabled = true;
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[2949] | 206 | viewHost.ViewType = null;
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[2713] | 207 | viewHost.Content = item;
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[2655] | 208 | } else {
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[2713] | 209 | viewHost.Content = null;
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[2655] | 210 | detailsGroupBox.Enabled = false;
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| 211 | }
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| 212 | }
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| 213 |
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| 214 | protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
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| 215 | if (e.KeyCode == Keys.Delete) {
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[3362] | 216 | if ((itemsListView.SelectedItems.Count > 0) && !Content.IsReadOnly && !ReadOnly) {
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[2655] | 217 | foreach (ListViewItem item in itemsListView.SelectedItems)
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[2713] | 218 | Content.RemoveAt(item.Index);
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[2655] | 219 | }
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| 220 | }
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| 221 | }
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| 222 |
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| 223 | protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
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| 224 | if (itemsListView.SelectedItems.Count == 1) {
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| 225 | T item = (T)itemsListView.SelectedItems[0].Tag;
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[3423] | 226 | IContentView view = MainFormManager.CreateDefaultView(item);
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[3416] | 227 | if (view != null) {
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| 228 | view.ReadOnly = ReadOnly;
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[3423] | 229 | view.Locked = Locked;
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[3416] | 230 | view.Show();
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| 231 | }
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[2655] | 232 | }
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| 233 | }
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| 234 |
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| 235 | protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
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| 236 | ListViewItem listViewItem = (ListViewItem)e.Item;
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| 237 | T item = (T)listViewItem.Tag;
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| 238 | DataObject data = new DataObject();
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| 239 | data.SetData("Type", item.GetType());
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| 240 | data.SetData("Value", item);
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[3362] | 241 | if (Content.IsReadOnly || ReadOnly) {
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[2655] | 242 | DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
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| 243 | } else {
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| 244 | DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
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| 245 | if ((result & DragDropEffects.Move) == DragDropEffects.Move)
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[2713] | 246 | Content.RemoveAt(listViewItem.Index);
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[2655] | 247 | }
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| 248 | }
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| 249 | protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
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| 250 | e.Effect = DragDropEffects.None;
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| 251 | Type type = e.Data.GetData("Type") as Type;
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[3362] | 252 | if (!Content.IsReadOnly && !ReadOnly && (type != null) && (typeof(T).IsAssignableFrom(type))) {
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[2655] | 253 | if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy; // CTRL key
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[2694] | 254 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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| 255 | else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
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| 256 | else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
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| 257 | else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
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[2655] | 258 | }
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| 259 | }
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| 260 | protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
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| 261 | if (e.Effect != DragDropEffects.None) {
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| 262 | T item = e.Data.GetData("Value") as T;
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| 263 | if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
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| 264 |
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| 265 | Point p = itemsListView.PointToClient(new Point(e.X, e.Y));
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| 266 | ListViewItem listViewItem = itemsListView.GetItemAt(p.X, p.Y);
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[2713] | 267 | if (listViewItem != null) Content.Insert(listViewItem.Index, item);
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| 268 | else Content.Add(item);
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[2655] | 269 | }
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| 270 | }
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| 271 | #endregion
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| 272 |
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| 273 | #region Button Events
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| 274 | protected virtual void addButton_Click(object sender, EventArgs e) {
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| 275 | T item = CreateItem();
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| 276 | if (item != null)
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[2713] | 277 | Content.Add(item);
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[2655] | 278 | }
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| 279 | protected virtual void moveUpButton_Click(object sender, EventArgs e) {
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| 280 | if (itemsListView.SelectedItems.Count == 1) {
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| 281 | int index = itemsListView.SelectedIndices[0];
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[2713] | 282 | T item = Content[index - 1];
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| 283 | Content[index - 1] = Content[index];
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[2655] | 284 | itemsListView.Items[index].Selected = false;
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| 285 | itemsListView.Items[index - 1].Selected = true;
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[2713] | 286 | Content[index] = item;
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[2655] | 287 | }
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| 288 | }
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| 289 | protected virtual void moveDownButton_Click(object sender, EventArgs e) {
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| 290 | if (itemsListView.SelectedItems.Count == 1) {
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| 291 | int index = itemsListView.SelectedIndices[0];
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[2713] | 292 | T item = Content[index + 1];
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| 293 | Content[index + 1] = Content[index];
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[2655] | 294 | itemsListView.Items[index].Selected = false;
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| 295 | itemsListView.Items[index + 1].Selected = true;
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[2713] | 296 | Content[index] = item;
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[2655] | 297 | }
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| 298 | }
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| 299 | protected virtual void removeButton_Click(object sender, EventArgs e) {
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| 300 | if (itemsListView.SelectedItems.Count > 0) {
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| 301 | foreach (ListViewItem item in itemsListView.SelectedItems)
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[2713] | 302 | Content.RemoveAt(item.Index);
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[2655] | 303 | }
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| 304 | }
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| 305 | #endregion
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| 306 |
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[2713] | 307 | #region Content Events
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| 308 | protected virtual void Content_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2655] | 309 | if (InvokeRequired)
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[2713] | 310 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsAdded), sender, e);
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[2655] | 311 | else
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| 312 | foreach (IndexedItem<T> item in e.Items)
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| 313 | InsertListViewItem(item.Index, CreateListViewItem(item.Value));
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| 314 | }
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[2713] | 315 | protected virtual void Content_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2655] | 316 | if (InvokeRequired)
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[2713] | 317 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsRemoved), sender, e);
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[2655] | 318 | else {
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| 319 | List<ListViewItem> listViewItems = new List<ListViewItem>();
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| 320 | foreach (IndexedItem<T> item in e.Items)
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| 321 | listViewItems.Add(itemsListView.Items[item.Index]);
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| 322 | foreach (ListViewItem listViewItem in listViewItems)
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| 323 | RemoveListViewItem(listViewItem);
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| 324 | }
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| 325 | }
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[2713] | 326 | protected virtual void Content_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2655] | 327 | if (InvokeRequired)
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[2713] | 328 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced), sender, e);
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[2655] | 329 | else {
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| 330 | int[] selected = new int[itemsListView.SelectedIndices.Count];
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| 331 | itemsListView.SelectedIndices.CopyTo(selected, 0);
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| 332 |
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| 333 | List<ListViewItem> listViewItems = new List<ListViewItem>();
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| 334 | foreach (IndexedItem<T> item in e.OldItems)
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| 335 | listViewItems.Add(itemsListView.Items[item.Index]);
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| 336 | foreach (ListViewItem listViewItem in listViewItems)
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| 337 | RemoveListViewItem(listViewItem);
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| 338 |
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| 339 | foreach (IndexedItem<T> item in e.Items)
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| 340 | InsertListViewItem(item.Index, CreateListViewItem(item.Value));
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| 341 |
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| 342 | for (int i = 0; i < selected.Length; i++)
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| 343 | itemsListView.Items[selected[i]].Selected = true;
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| 344 | }
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| 345 | }
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[2713] | 346 | protected virtual void Content_ItemsMoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2655] | 347 | if (InvokeRequired)
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[2713] | 348 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved), sender, e);
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[2655] | 349 | else {
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| 350 | foreach (IndexedItem<T> item in e.Items) {
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| 351 | ListViewItem listViewItem = itemsListView.Items[item.Index];
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| 352 | listViewItem.Tag = item.Value;
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[3327] | 353 | UpdateListViewItemImage(listViewItem);
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| 354 | UpdateListViewItemText(listViewItem);
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[2655] | 355 | }
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| 356 | }
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| 357 | }
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[2713] | 358 | protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2655] | 359 | if (InvokeRequired)
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[2713] | 360 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset), sender, e);
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[2655] | 361 | else {
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| 362 | List<ListViewItem> listViewItems = new List<ListViewItem>();
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| 363 | foreach (IndexedItem<T> item in e.OldItems)
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| 364 | listViewItems.Add(itemsListView.Items[item.Index]);
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| 365 | foreach (ListViewItem listViewItem in listViewItems)
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| 366 | RemoveListViewItem(listViewItem);
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| 367 |
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| 368 | foreach (IndexedItem<T> item in e.Items)
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| 369 | InsertListViewItem(item.Index, CreateListViewItem(item.Value));
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| 370 | }
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| 371 | }
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| 372 | #endregion
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| 373 |
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| 374 | #region Item Events
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[3306] | 375 | protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
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| 376 | if (InvokeRequired)
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| 377 | Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
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| 378 | else {
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| 379 | T item = (T)sender;
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| 380 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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| 381 | if (((T)listViewItem.Tag) == item)
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[3327] | 382 | UpdateListViewItemImage(listViewItem);
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[3306] | 383 | }
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| 384 | }
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| 385 | }
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[2932] | 386 | protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
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[2655] | 387 | if (InvokeRequired)
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[2932] | 388 | Invoke(new EventHandler(Item_ToStringChanged), sender, e);
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[2655] | 389 | else {
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| 390 | T item = (T)sender;
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| 391 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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| 392 | if (((T)listViewItem.Tag) == item)
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[3327] | 393 | UpdateListViewItemText(listViewItem);
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[2655] | 394 | }
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[3362] | 395 | AdjustListViewColumnSizes();
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[2655] | 396 | }
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| 397 | }
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| 398 | #endregion
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[3362] | 399 |
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| 400 | #region Helpers
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| 401 | protected virtual void AdjustListViewColumnSizes() {
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| 402 | if (itemsListView.Items.Count > 0) {
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| 403 | for (int i = 0; i < itemsListView.Columns.Count; i++)
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| 404 | itemsListView.Columns[i].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
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| 405 | }
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| 406 | }
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| 407 | #endregion
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[2655] | 408 | }
|
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| 409 | }
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