[2852] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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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[2948] | 23 | using System.Collections.Generic;
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[2852] | 24 | using HeuristicLab.Collections;
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| 25 | using HeuristicLab.Core;
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| 26 | using HeuristicLab.Core.Views;
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| 27 | using HeuristicLab.MainForm;
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| 28 |
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| 29 | namespace HeuristicLab.Parameters.Views {
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| 30 | /// <summary>
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| 31 | /// The visual representation of a <see cref="Parameter"/>.
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| 32 | /// </summary>
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[2917] | 33 | [View("ConstrainedValueParameter View")]
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[2948] | 34 | [Content(typeof(OptionalConstrainedValueParameter<>), true)]
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[2852] | 35 | [Content(typeof(ConstrainedValueParameter<>), true)]
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[2924] | 36 | public partial class ConstrainedValueParameterView<T> : ParameterView where T : class, IItem {
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[2948] | 37 | private List<T> valueComboBoxItems;
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| 38 |
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[2852] | 39 | /// <summary>
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| 40 | /// Gets or sets the variable to represent visually.
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| 41 | /// </summary>
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| 42 | /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="ViewBase"/>.
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| 43 | /// No own data storage present.</remarks>
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[2948] | 44 | public new OptionalConstrainedValueParameter<T> Content {
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| 45 | get { return (OptionalConstrainedValueParameter<T>)base.Content; }
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[2852] | 46 | set { base.Content = value; }
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| 47 | }
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| 48 |
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| 49 | /// <summary>
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| 50 | /// Initializes a new instance of <see cref="VariableView"/> with caption "Variable".
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| 51 | /// </summary>
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| 52 | public ConstrainedValueParameterView() {
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| 53 | InitializeComponent();
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[2948] | 54 | valueComboBoxItems = new List<T>();
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[2852] | 55 | }
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| 56 |
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| 57 | /// <summary>
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| 58 | /// Removes the eventhandlers from the underlying <see cref="IVariable"/>.
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| 59 | /// </summary>
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| 60 | /// <remarks>Calls <see cref="ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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| 61 | protected override void DeregisterContentEvents() {
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| 62 | Content.ValidValues.ItemsAdded -= new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsAdded);
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| 63 | Content.ValidValues.ItemsRemoved -= new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsRemoved);
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| 64 | Content.ValidValues.CollectionReset -= new CollectionItemsChangedEventHandler<T>(ValidValues_CollectionReset);
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| 65 | Content.ValueChanged -= new EventHandler(Content_ValueChanged);
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| 66 | base.DeregisterContentEvents();
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| 67 | }
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| 68 |
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| 69 | /// <summary>
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| 70 | /// Adds eventhandlers to the underlying <see cref="IVariable"/>.
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| 71 | /// </summary>
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| 72 | /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
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| 73 | protected override void RegisterContentEvents() {
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| 74 | base.RegisterContentEvents();
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| 75 | Content.ValidValues.ItemsAdded += new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsAdded);
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| 76 | Content.ValidValues.ItemsRemoved += new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsRemoved);
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| 77 | Content.ValidValues.CollectionReset += new CollectionItemsChangedEventHandler<T>(ValidValues_CollectionReset);
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| 78 | Content.ValueChanged += new EventHandler(Content_ValueChanged);
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| 79 | }
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| 80 |
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| 81 | protected override void OnContentChanged() {
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| 82 | base.OnContentChanged();
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| 83 | if (Content == null) {
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[2870] | 84 | viewHost.Content = null;
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[2852] | 85 | FillValueComboBox();
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| 86 | } else {
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| 87 | FillValueComboBox();
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[2949] | 88 | viewHost.ViewType = null;
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[2852] | 89 | viewHost.Content = Content.Value;
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| 90 | }
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| 91 | }
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| 92 |
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[3904] | 93 | protected override void SetEnabledStateOfControls() {
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| 94 | base.SetEnabledStateOfControls();
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[3365] | 95 | valueGroupBox.Enabled = Content != null;
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| 96 | valueComboBox.Enabled = (valueComboBox.Items.Count > 0) && !ReadOnly;
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| 97 | }
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| 98 |
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[2852] | 99 | private void FillValueComboBox() {
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[2924] | 100 | valueComboBox.SelectedIndexChanged -= new EventHandler(valueComboBox_SelectedIndexChanged);
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[2948] | 101 | valueComboBoxItems.Clear();
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| 102 | valueComboBox.Items.Clear();
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| 103 | if (!(Content is ConstrainedValueParameter<T>)) {
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| 104 | valueComboBoxItems.Add(null);
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| 105 | valueComboBox.Items.Add("-");
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| 106 | }
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[2852] | 107 | if (Content != null) {
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[2948] | 108 | foreach (T item in Content.ValidValues) {
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| 109 | valueComboBoxItems.Add(item);
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| 110 | valueComboBox.Items.Add(item.ToString());
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| 111 | }
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[3365] | 112 | valueComboBox.Enabled = (valueComboBox.Items.Count > 0) && !ReadOnly;
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[2948] | 113 | valueComboBox.SelectedIndex = valueComboBoxItems.IndexOf(Content.Value);
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[2852] | 114 | }
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[2924] | 115 | valueComboBox.SelectedIndexChanged += new EventHandler(valueComboBox_SelectedIndexChanged);
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[2852] | 116 | }
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| 117 |
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| 118 | #region Content Events
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| 119 | private void Content_ValueChanged(object sender, EventArgs e) {
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| 120 | if (InvokeRequired)
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| 121 | Invoke(new EventHandler(Content_ValueChanged), sender, e);
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| 122 | else {
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[2948] | 123 | valueComboBox.SelectedIndex = valueComboBoxItems.IndexOf(Content.Value);
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[2949] | 124 | viewHost.ViewType = null;
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[2852] | 125 | viewHost.Content = Content.Value;
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| 126 | }
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| 127 | }
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| 128 | private void ValidValues_ItemsAdded(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 129 | if (InvokeRequired)
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| 130 | Invoke(new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsAdded), sender, e);
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[2924] | 131 | else
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| 132 | FillValueComboBox();
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[2852] | 133 | }
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| 134 | private void ValidValues_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 135 | if (InvokeRequired)
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| 136 | Invoke(new CollectionItemsChangedEventHandler<T>(ValidValues_ItemsRemoved), sender, e);
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[2924] | 137 | else
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| 138 | FillValueComboBox();
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[2852] | 139 | }
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| 140 | private void ValidValues_CollectionReset(object sender, CollectionItemsChangedEventArgs<T> e) {
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| 141 | if (InvokeRequired)
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| 142 | Invoke(new CollectionItemsChangedEventHandler<T>(ValidValues_CollectionReset), sender, e);
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| 143 | else
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| 144 | FillValueComboBox();
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| 145 | }
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| 146 | #endregion
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| 147 |
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| 148 | private void valueComboBox_SelectedIndexChanged(object sender, EventArgs e) {
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[3191] | 149 | if (valueComboBox.SelectedIndex >= 0)
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| 150 | Content.Value = valueComboBoxItems[valueComboBox.SelectedIndex];
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[2852] | 151 | }
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| 152 | }
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| 153 | }
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