1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2014 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 HeuristicLab.Common;
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23 | using System;
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24 | using System.Windows.Forms;
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25 |
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26 | namespace HeuristicLab.Core.Networks.Views {
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27 | public partial class NetworkItemSelector : UserControl {
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28 | protected Func<INetworkItem, bool> networkItemCondition;
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29 | protected INetworkItem root;
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30 | public INetworkItem Root {
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31 | get { return root; }
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32 | }
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33 | public string Caption {
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34 | get { return networkItemsGroupBox.Text; }
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35 | set {
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36 | if (InvokeRequired)
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37 | Invoke(new Action<string>(s => { Caption = s; }), value);
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38 | else
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39 | networkItemsGroupBox.Text = value;
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40 | }
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41 | }
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42 | public TreeView NetworkItemsTreeView {
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43 | get { return networkItemsTreeView; }
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44 | }
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45 | protected INetworkItem selectedNetworkItem;
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46 | public INetworkItem SelectedNetworkItem {
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47 | get {
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48 | return selectedNetworkItem;
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49 | }
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50 | protected set {
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51 | if (selectedNetworkItem != value) {
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52 | selectedNetworkItem = value;
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53 | OnSelectedNetworkItemChanged();
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54 | }
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55 | }
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56 | }
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57 |
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58 | public NetworkItemSelector() {
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59 | InitializeComponent();
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60 | root = null;
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61 | networkItemCondition = null;
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62 | selectedNetworkItem = null;
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63 | }
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64 |
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65 | public virtual void Configure(INetworkItem root) {
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66 | Configure(root, null, (e) => true);
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67 | }
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68 | public virtual void Configure(INetworkItem root, INetworkItem selectedNetworkItem) {
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69 | Configure(root, selectedNetworkItem, (e) => true);
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70 | }
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71 | public virtual void Configure(INetworkItem root, INetworkItem selectedNetworkItem, Type networkItemType) {
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72 | Configure(root, selectedNetworkItem, (e) => { return networkItemType.IsAssignableFrom(e.GetType()); });
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73 | }
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74 | public virtual void Configure(INetworkItem root, INetworkItem selectedNetworkItem, Func<INetworkItem, bool> networkItemCondition) {
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75 | if (root == null) throw new ArgumentNullException("root");
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76 | if (networkItemCondition == null) throw new ArgumentNullException("networkItemCondition");
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77 | if (InvokeRequired)
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78 | Invoke(new Action<INetworkItem, INetworkItem, Func<INetworkItem, bool>>(Configure), root, selectedNetworkItem, networkItemCondition);
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79 | else {
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80 | this.root = root;
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81 | this.networkItemCondition = networkItemCondition;
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82 | this.selectedNetworkItem = null;
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83 | networkItemsTreeView.Nodes.Clear();
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84 | imageList.Images.Clear();
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85 |
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86 | TreeNode selectedNode;
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87 | var n = CreateTreeNode(Root, selectedNetworkItem, networkItemCondition, out selectedNode);
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88 | if (n != null)
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89 | networkItemsTreeView.Nodes.Add(n);
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90 | if (selectedNode != null) {
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91 | networkItemsTreeView.SelectedNode = selectedNode;
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92 | selectedNode.EnsureVisible();
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93 | }
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94 | }
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95 | }
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96 |
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97 | public event EventHandler SelectedNetworkItemChanged;
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98 | protected virtual void OnSelectedNetworkItemChanged() {
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99 | var handler = SelectedNetworkItemChanged;
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100 | if (handler != null) SelectedNetworkItemChanged(this, EventArgs.Empty);
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101 | }
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102 |
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103 | #region Control Events
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104 | protected virtual void networkItemsTreeView_AfterSelect(object sender, TreeViewEventArgs e) {
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105 | if (networkItemsTreeView.SelectedNode == null)
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106 | SelectedNetworkItem = null;
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107 | else {
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108 | var selected = (INetworkItem)networkItemsTreeView.SelectedNode.Tag;
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109 | SelectedNetworkItem = ((networkItemCondition != null) && !networkItemCondition(selected)) ? null : selected;
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110 | }
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111 | }
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112 | #endregion
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113 |
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114 | #region Helpers
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115 | protected virtual TreeNode CreateTreeNode(INetworkItem networkItem, INetworkItem selectedNetworkItem, Func<INetworkItem, bool> networkItemCondition, out TreeNode selectedNode) {
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116 | selectedNode = null;
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117 | if (networkItem == null) return null;
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118 |
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119 | TreeNode node = new TreeNode(networkItem.Name);
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120 | node.Tag = networkItem;
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121 | foreach (var child in networkItem.Children) {
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122 | TreeNode selected;
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123 | var n = CreateTreeNode(child, selectedNetworkItem, networkItemCondition, out selected);
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124 | if (n != null) {
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125 | node.Nodes.Add(n);
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126 | if (selected != null) selectedNode = selected;
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127 | }
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128 |
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129 | }
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130 | if (!networkItemCondition(networkItem) && (node.Nodes.Count == 0))
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131 | return null;
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132 |
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133 | imageList.Images.Add(networkItem.ItemImage);
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134 | node.ImageIndex = imageList.Images.Count - 1;
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135 | node.SelectedImageIndex = node.ImageIndex;
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136 | node.ToolTipText = networkItem.GetType().GetPrettyName();
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137 |
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138 | if (networkItem == selectedNetworkItem) selectedNode = node;
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139 | return node;
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140 | }
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141 | #endregion
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142 | }
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143 | }
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