[2746] | 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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[2746] | 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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| 28 | using HeuristicLab.MainForm.WindowsForms;
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| 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("ItemArray View")]
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[2746] | 35 | [Content(typeof(ItemArray<>), true)]
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[3393] | 36 | [Content(typeof(IItemArray<>), false)]
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[3483] | 37 | public partial class ItemArrayView<T> : ItemView where T : class, IItem {
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[3407] | 38 | protected TypeSelectorDialog typeSelectorDialog;
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| 39 |
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[2746] | 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 IItemArray<T> Content {
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| 46 | get { return (IItemArray<T>)base.Content; }
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[2746] | 47 | set { base.Content = value; }
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| 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 ItemArrayView() {
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| 58 | InitializeComponent();
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| 59 | Caption = "Item Array";
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| 60 | }
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[3393] | 61 | public ItemArrayView(IItemArray<T> content)
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[2746] | 62 | : this() {
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| 63 | Content = content;
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| 64 | }
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| 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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| 70 | protected override void DeregisterContentEvents() {
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| 71 | Content.ItemsReplaced -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced);
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| 72 | Content.ItemsMoved -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved);
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| 73 | Content.CollectionReset -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset);
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| 74 | base.DeregisterContentEvents();
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| 75 | }
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| 76 |
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| 77 | /// <summary>
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| 78 | /// Adds eventhandlers to the underlying <see cref="IScope"/>.
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| 79 | /// </summary>
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| 80 | /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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| 81 | protected override void RegisterContentEvents() {
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| 82 | base.RegisterContentEvents();
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| 83 | Content.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced);
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| 84 | Content.ItemsMoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved);
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| 85 | Content.CollectionReset += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset);
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| 86 | }
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| 87 |
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| 88 | protected override void OnContentChanged() {
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| 89 | base.OnContentChanged();
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| 90 | Caption = "Item Array";
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| 91 | while (itemsListView.Items.Count > 0) RemoveListViewItem(itemsListView.Items[0]);
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| 92 | viewHost.Content = null;
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| 93 | if (Content != null) {
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| 94 | Caption += " (" + Content.GetType().Name + ")";
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| 95 | foreach (T item in Content)
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| 96 | AddListViewItem(CreateListViewItem(item));
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| 97 | }
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[3362] | 98 | SetEnabledStateOfControls();
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[2746] | 99 | }
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| 100 |
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[3362] | 101 | protected override void OnReadOnlyChanged() {
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| 102 | base.OnReadOnlyChanged();
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| 103 | SetEnabledStateOfControls();
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| 104 | }
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| 105 |
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| 106 | private void SetEnabledStateOfControls() {
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| 107 | if (Content == null) {
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| 108 | addButton.Enabled = false;
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| 109 | moveUpButton.Enabled = false;
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| 110 | moveDownButton.Enabled = false;
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| 111 | removeButton.Enabled = false;
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| 112 | itemsListView.Enabled = false;
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| 113 | detailsGroupBox.Enabled = false;
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| 114 | } else {
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| 115 | addButton.Enabled = itemsListView.SelectedItems.Count > 0 &&
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[3435] | 116 | !Content.IsReadOnly && !ReadOnly;
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[3362] | 117 | moveUpButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 118 | itemsListView.SelectedIndices[0] != 0 &&
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[3435] | 119 | !Content.IsReadOnly && !ReadOnly;
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[3362] | 120 | moveDownButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 121 | itemsListView.SelectedIndices[0] != itemsListView.Items.Count - 1 &&
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[3435] | 122 | !Content.IsReadOnly && !ReadOnly;
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[3362] | 123 | removeButton.Enabled = itemsListView.SelectedItems.Count > 0 &&
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[3435] | 124 | !Content.IsReadOnly && !ReadOnly;
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[3362] | 125 | itemsListView.Enabled = true;
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| 126 | detailsGroupBox.Enabled = true;
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| 127 | }
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| 128 | }
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| 129 |
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[2746] | 130 | protected virtual T CreateItem() {
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[3407] | 131 | if (typeSelectorDialog == null) {
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| 132 | typeSelectorDialog = new TypeSelectorDialog();
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| 133 | typeSelectorDialog.Caption = "Select Item";
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| 134 | typeSelectorDialog.TypeSelector.Caption = "Available Items";
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| 135 | typeSelectorDialog.TypeSelector.Configure(typeof(T), false, false);
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[2746] | 136 | }
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[3407] | 137 |
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| 138 | if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
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| 139 | try {
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| 140 | return (T)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
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| 141 | }
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| 142 | catch (Exception ex) {
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| 143 | Auxiliary.ShowErrorMessageBox(ex);
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| 144 | }
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[2746] | 145 | }
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[3407] | 146 | return null;
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[2746] | 147 | }
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| 148 | protected virtual ListViewItem CreateListViewItem(T item) {
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[3341] | 149 | ListViewItem listViewItem = new ListViewItem();
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| 150 | listViewItem.Text = item == null ? "null" : item.ToString();
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| 151 | listViewItem.ToolTipText = item == null ? string.Empty : item.ItemName + ": " + item.ItemDescription;
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| 152 | itemsListView.SmallImageList.Images.Add(item == null ? HeuristicLab.Common.Resources.VS2008ImageLibrary.Nothing : item.ItemImage);
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| 153 | listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
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| 154 | listViewItem.Tag = item;
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| 155 | return listViewItem;
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[2746] | 156 | }
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| 157 | protected virtual void AddListViewItem(ListViewItem listViewItem) {
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| 158 | itemsListView.Items.Add(listViewItem);
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[3341] | 159 | if (listViewItem.Tag != null) {
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| 160 | ((T)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
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[2932] | 161 | ((T)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
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[3341] | 162 | }
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[3362] | 163 | AdjustListViewColumnSizes();
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[2746] | 164 | }
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| 165 | protected virtual void InsertListViewItem(int index, ListViewItem listViewItem) {
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| 166 | itemsListView.Items.Insert(index, listViewItem);
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[3341] | 167 | if (listViewItem.Tag != null) {
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| 168 | ((T)listViewItem.Tag).ItemImageChanged += new EventHandler(Item_ItemImageChanged);
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[2932] | 169 | ((T)listViewItem.Tag).ToStringChanged += new EventHandler(Item_ToStringChanged);
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[3341] | 170 | }
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[3362] | 171 | AdjustListViewColumnSizes();
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[2746] | 172 | }
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| 173 | protected virtual void RemoveListViewItem(ListViewItem listViewItem) {
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[3341] | 174 | if (listViewItem.Tag != null) {
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| 175 | ((T)listViewItem.Tag).ItemImageChanged -= new EventHandler(Item_ItemImageChanged);
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[2932] | 176 | ((T)listViewItem.Tag).ToStringChanged -= new EventHandler(Item_ToStringChanged);
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[3341] | 177 | }
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[2746] | 178 | listViewItem.Remove();
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[3341] | 179 | foreach (ListViewItem other in itemsListView.Items)
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| 180 | if (other.ImageIndex > listViewItem.ImageIndex) other.ImageIndex--;
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| 181 | itemsListView.SmallImageList.Images.RemoveAt(listViewItem.ImageIndex);
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[2746] | 182 | }
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[3341] | 183 | protected virtual void UpdateListViewItemImage(ListViewItem listViewItem) {
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[2746] | 184 | T item = listViewItem.Tag as T;
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[3341] | 185 | int i = listViewItem.ImageIndex;
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| 186 | listViewItem.ImageList.Images[i] = item == null ? HeuristicLab.Common.Resources.VS2008ImageLibrary.Nothing : item.ItemImage;
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| 187 | listViewItem.ImageIndex = -1;
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| 188 | listViewItem.ImageIndex = i;
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| 189 | }
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| 190 | protected virtual void UpdateListViewItemText(ListViewItem listViewItem) {
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| 191 | T item = listViewItem.Tag as T;
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[2746] | 192 | listViewItem.Text = item == null ? "null" : item.ToString();
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| 193 | listViewItem.ToolTipText = item == null ? string.Empty : item.ItemName + ": " + item.ItemDescription;
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| 194 | }
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| 195 |
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[3362] | 196 | #region ListView Events
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[2746] | 197 | protected virtual void itemsListView_SelectedIndexChanged(object sender, EventArgs e) {
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[3456] | 198 | addButton.Enabled = itemsListView.SelectedItems.Count > 0 && (Content != null) && !Content.IsReadOnly && !ReadOnly;
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[2746] | 199 | moveUpButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 200 | itemsListView.SelectedIndices[0] != 0 &&
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[3456] | 201 | (Content != null) && !Content.IsReadOnly && !ReadOnly;
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[2746] | 202 | moveDownButton.Enabled = itemsListView.SelectedItems.Count == 1 &&
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| 203 | itemsListView.SelectedIndices[0] != itemsListView.Items.Count - 1 &&
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[3456] | 204 | (Content != null) && !Content.IsReadOnly && !ReadOnly;
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| 205 | removeButton.Enabled = itemsListView.SelectedItems.Count > 0 && (Content != null) && !Content.IsReadOnly && !ReadOnly;
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[2746] | 206 |
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| 207 | if (itemsListView.SelectedItems.Count == 1) {
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| 208 | T item = itemsListView.SelectedItems[0].Tag as T;
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[2870] | 209 | detailsGroupBox.Enabled = true;
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[2949] | 210 | viewHost.ViewType = null;
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[2746] | 211 | viewHost.Content = item;
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| 212 | } else {
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| 213 | viewHost.Content = null;
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| 214 | detailsGroupBox.Enabled = false;
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| 215 | }
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| 216 | }
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| 217 |
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| 218 | protected virtual void itemsListView_KeyDown(object sender, KeyEventArgs e) {
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| 219 | if (e.KeyCode == Keys.Delete) {
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[3435] | 220 | if ((itemsListView.SelectedItems.Count > 0) && !Content.IsReadOnly && !ReadOnly) {
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[2746] | 221 | foreach (ListViewItem item in itemsListView.SelectedItems)
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| 222 | Content[item.Index] = null;
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| 223 | }
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| 224 | }
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| 225 | }
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| 226 |
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| 227 | protected virtual void itemsListView_DoubleClick(object sender, EventArgs e) {
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| 228 | if (itemsListView.SelectedItems.Count == 1) {
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| 229 | T item = itemsListView.SelectedItems[0].Tag as T;
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| 230 | if (item != null) {
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[3423] | 231 | IContentView view = MainFormManager.CreateDefaultView(item);
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[3416] | 232 | if (view != null) {
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| 233 | view.ReadOnly = ReadOnly;
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[3423] | 234 | view.Locked = Locked;
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[3416] | 235 | view.Show();
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| 236 | }
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[2746] | 237 | }
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| 238 | }
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| 239 | }
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| 240 |
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| 241 | protected virtual void itemsListView_ItemDrag(object sender, ItemDragEventArgs e) {
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[3432] | 242 | if (!Locked) {
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| 243 | ListViewItem listViewItem = (ListViewItem)e.Item;
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| 244 | T item = listViewItem.Tag as T;
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| 245 | if (item != null) {
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| 246 | DataObject data = new DataObject();
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| 247 | data.SetData("Type", item.GetType());
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| 248 | data.SetData("Value", item);
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[3435] | 249 | if (Content.IsReadOnly || ReadOnly) {
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[3432] | 250 | DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link);
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| 251 | } else {
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| 252 | DragDropEffects result = DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Link | DragDropEffects.Move);
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| 253 | if ((result & DragDropEffects.Move) == DragDropEffects.Move)
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| 254 | Content[listViewItem.Index] = null;
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| 255 | }
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[2746] | 256 | }
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| 257 | }
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| 258 | }
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| 259 | protected virtual void itemsListView_DragEnterOver(object sender, DragEventArgs e) {
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| 260 | e.Effect = DragDropEffects.None;
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| 261 | Type type = e.Data.GetData("Type") as Type;
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[3435] | 262 | if (!Content.IsReadOnly && !ReadOnly && (type != null) && (typeof(T).IsAssignableFrom(type))) {
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[2746] | 263 | Point p = itemsListView.PointToClient(new Point(e.X, e.Y));
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| 264 | ListViewItem listViewItem = itemsListView.GetItemAt(p.X, p.Y);
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| 265 | if (listViewItem != null) {
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| 266 | if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy; // CTRL key
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| 267 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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| 268 | else if ((e.AllowedEffect & DragDropEffects.Link) == DragDropEffects.Link) e.Effect = DragDropEffects.Link;
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| 269 | else if ((e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy) e.Effect = DragDropEffects.Copy;
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| 270 | else if ((e.AllowedEffect & DragDropEffects.Move) == DragDropEffects.Move) e.Effect = DragDropEffects.Move;
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| 271 | }
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| 272 | }
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| 273 | }
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| 274 | protected virtual void itemsListView_DragDrop(object sender, DragEventArgs e) {
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| 275 | if (e.Effect != DragDropEffects.None) {
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| 276 | T item = e.Data.GetData("Value") as T;
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| 277 | if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (T)item.Clone();
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| 278 |
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| 279 | Point p = itemsListView.PointToClient(new Point(e.X, e.Y));
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| 280 | ListViewItem listViewItem = itemsListView.GetItemAt(p.X, p.Y);
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| 281 | Content[listViewItem.Index] = item;
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| 282 | }
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| 283 | }
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| 284 | #endregion
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| 285 |
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| 286 | #region Button Events
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[3341] | 287 | protected virtual void addButton_Click(object sender, EventArgs e) {
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| 288 | if (itemsListView.SelectedItems.Count > 0) {
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| 289 | T item = CreateItem();
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| 290 | if (item != null) {
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| 291 | foreach (ListViewItem listViewItem in itemsListView.SelectedItems)
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| 292 | Content[listViewItem.Index] = item;
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| 293 | }
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| 294 | }
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| 295 | }
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[2746] | 296 | protected virtual void moveUpButton_Click(object sender, EventArgs e) {
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| 297 | if (itemsListView.SelectedItems.Count == 1) {
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| 298 | int index = itemsListView.SelectedIndices[0];
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| 299 | T item = Content[index - 1];
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| 300 | Content[index - 1] = Content[index];
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| 301 | itemsListView.Items[index].Selected = false;
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| 302 | itemsListView.Items[index - 1].Selected = true;
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| 303 | Content[index] = item;
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| 304 | }
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| 305 | }
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| 306 | protected virtual void moveDownButton_Click(object sender, EventArgs e) {
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| 307 | if (itemsListView.SelectedItems.Count == 1) {
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| 308 | int index = itemsListView.SelectedIndices[0];
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| 309 | T item = Content[index + 1];
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| 310 | Content[index + 1] = Content[index];
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| 311 | itemsListView.Items[index].Selected = false;
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| 312 | itemsListView.Items[index + 1].Selected = true;
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| 313 | Content[index] = item;
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| 314 | }
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| 315 | }
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[3341] | 316 | protected virtual void removeButton_Click(object sender, EventArgs e) {
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| 317 | if (itemsListView.SelectedItems.Count > 0) {
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| 318 | foreach (ListViewItem item in itemsListView.SelectedItems)
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| 319 | Content[item.Index] = null;
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| 320 | }
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| 321 | }
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[2746] | 322 | #endregion
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| 323 |
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| 324 | #region Content Events
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| 325 | protected virtual void Content_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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| 326 | if (InvokeRequired)
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| 327 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsReplaced), sender, e);
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| 328 | else {
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| 329 | int[] selected = new int[itemsListView.SelectedIndices.Count];
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| 330 | itemsListView.SelectedIndices.CopyTo(selected, 0);
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| 331 |
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| 332 | List<ListViewItem> listViewItems = new List<ListViewItem>();
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| 333 | foreach (IndexedItem<T> item in e.OldItems)
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| 334 | listViewItems.Add(itemsListView.Items[item.Index]);
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| 335 | foreach (ListViewItem listViewItem in listViewItems)
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| 336 | RemoveListViewItem(listViewItem);
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| 337 |
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| 338 | foreach (IndexedItem<T> item in e.Items)
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| 339 | InsertListViewItem(item.Index, CreateListViewItem(item.Value));
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| 340 |
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| 341 | for (int i = 0; i < selected.Length; i++)
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| 342 | itemsListView.Items[selected[i]].Selected = true;
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| 343 | }
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| 344 | }
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| 345 | protected virtual void Content_ItemsMoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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| 346 | if (InvokeRequired)
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| 347 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_ItemsMoved), sender, e);
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| 348 | else {
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| 349 | foreach (IndexedItem<T> item in e.Items) {
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| 350 | ListViewItem listViewItem = itemsListView.Items[item.Index];
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| 351 | listViewItem.Tag = item.Value;
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[3341] | 352 | UpdateListViewItemImage(listViewItem);
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| 353 | UpdateListViewItemText(listViewItem);
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[2746] | 354 | }
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| 355 | }
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| 356 | }
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| 357 | protected virtual void Content_CollectionReset(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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| 358 | if (InvokeRequired)
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| 359 | Invoke(new CollectionItemsChangedEventHandler<IndexedItem<T>>(Content_CollectionReset), sender, e);
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| 360 | else {
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| 361 | List<ListViewItem> listViewItems = new List<ListViewItem>();
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| 362 | foreach (IndexedItem<T> item in e.OldItems)
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| 363 | listViewItems.Add(itemsListView.Items[item.Index]);
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| 364 | foreach (ListViewItem listViewItem in listViewItems)
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| 365 | RemoveListViewItem(listViewItem);
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| 366 |
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| 367 | foreach (IndexedItem<T> item in e.Items)
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| 368 | InsertListViewItem(item.Index, CreateListViewItem(item.Value));
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| 369 | }
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| 370 | }
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| 371 | #endregion
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| 372 |
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| 373 | #region Item Events
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[3341] | 374 | protected virtual void Item_ItemImageChanged(object sender, EventArgs e) {
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| 375 | if (InvokeRequired)
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| 376 | Invoke(new EventHandler(Item_ItemImageChanged), sender, e);
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| 377 | else {
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| 378 | T item = (T)sender;
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| 379 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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| 380 | if (((T)listViewItem.Tag) == item)
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| 381 | UpdateListViewItemImage(listViewItem);
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| 382 | }
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| 383 | }
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| 384 | }
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[2932] | 385 | protected virtual void Item_ToStringChanged(object sender, EventArgs e) {
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[2746] | 386 | if (InvokeRequired)
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[2932] | 387 | Invoke(new EventHandler(Item_ToStringChanged), sender, e);
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[2746] | 388 | else {
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| 389 | T item = (T)sender;
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| 390 | foreach (ListViewItem listViewItem in itemsListView.Items) {
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| 391 | if (((T)listViewItem.Tag) == item)
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[3341] | 392 | UpdateListViewItemText(listViewItem);
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[2746] | 393 | }
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[3362] | 394 | AdjustListViewColumnSizes();
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[2746] | 395 | }
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| 396 | }
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| 397 | #endregion
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[3362] | 398 |
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| 399 | #region Helpers
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| 400 | protected virtual void AdjustListViewColumnSizes() {
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| 401 | if (itemsListView.Items.Count > 0) {
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| 402 | for (int i = 0; i < itemsListView.Columns.Count; i++)
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| 403 | itemsListView.Columns[i].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
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| 404 | }
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| 405 | }
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| 406 | #endregion
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[2746] | 407 | }
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| 408 | }
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