1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 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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23 | using System.Collections;
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24 | using System.Collections.Generic;
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25 | using System.ComponentModel;
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26 | using System.Drawing;
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27 | using System.Data;
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28 | using System.Text;
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29 | using System.Windows.Forms;
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30 | using HeuristicLab.PluginInfrastructure;
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31 | using HeuristicLab.MainForm;
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32 |
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33 | namespace HeuristicLab.Core.Views {
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34 | /// <summary>
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35 | /// Visual representation of the class <see cref="IOperatorLibrary"/>.
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36 | /// </summary>
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37 | [Content(typeof(OperatorLibrary), true)]
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38 | public partial class OperatorLibraryView : ItemViewBase {
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39 | private ChooseOperatorDialog chooseOperatorDialog;
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40 |
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41 | /// <summary>
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42 | /// Gets or sets the operator library that should be displayed.
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43 | /// </summary>
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44 | /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="EditorBase"/>.</remarks>
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45 | public IOperatorLibrary OperatorLibrary {
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46 | get { return (IOperatorLibrary)Item; }
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47 | set { base.Item = value; }
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48 | }
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49 |
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50 | /// <summary>
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51 | /// Initializes a new instance of <see cref="OperatorLibraryEditor"/> with caption
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52 | /// <c>Operator Library</c>.
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53 | /// </summary>
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54 | public OperatorLibraryView() {
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55 | InitializeComponent();
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56 | operatorsTreeView.TreeViewNodeSorter = new NodeSorter();
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57 | Caption = "Operator Library";
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58 | }
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59 | /// <summary>
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60 | /// Initializes a new instance of <see cref="OperatorLibraryEditor"/> with the
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61 | /// specified <paramref name="operatorLibrary"/>.
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62 | /// </summary>
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63 | /// <param name="operatorLibrary">The operator library to display.</param>
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64 | public OperatorLibraryView(IOperatorLibrary operatorLibrary)
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65 | : this() {
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66 | OperatorLibrary = operatorLibrary;
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67 | }
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68 |
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69 | private class NodeSorter : IComparer {
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70 | public int Compare(object x, object y) {
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71 | TreeNode tx = x as TreeNode;
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72 | TreeNode ty = y as TreeNode;
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73 |
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74 | int result = string.Compare(tx.Text, ty.Text);
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75 | if (result == 0)
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76 | result = tx.Index.CompareTo(ty.Index);
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77 | return result;
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78 | }
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79 | }
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80 |
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81 | /// <summary>
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82 | /// Updates all controls with the latest data of the model.
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83 | /// </summary>
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84 | /// <remarks>Calls <see cref="EditorBase.UpdateControls"/> of base class <see cref="EditorBase"/>.</remarks>
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85 | protected override void UpdateControls() {
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86 | base.UpdateControls();
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87 | operatorsTreeView.Nodes.Clear();
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88 | addGroupButton.Enabled = false;
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89 | addOperatorButton.Enabled = false;
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90 | removeButton.Enabled = false;
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91 | if (OperatorLibrary == null) {
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92 | Caption = "Operator Library";
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93 | operatorsGroupBox.Enabled = false;
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94 | } else {
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95 | Caption = OperatorLibrary.Group.Name + " (" + OperatorLibrary.GetType().Name + ")";
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96 | operatorsGroupBox.Enabled = true;
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97 | operatorsTreeView.Nodes.Add(CreateTreeNode(OperatorLibrary.Group));
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98 | operatorsTreeView.Sort();
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99 | }
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100 | }
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101 |
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102 | private TreeNode CreateTreeNode(IOperatorGroup group) {
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103 | TreeNode node = new TreeNode();
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104 | node.Text = group.Name;
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105 | node.ForeColor = Color.LightGray;
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106 | node.Tag = group;
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107 |
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108 | foreach (IOperator op in group.Operators)
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109 | node.Nodes.Add(CreateTreeNode(op));
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110 | foreach (IOperatorGroup subGroup in group.SubGroups)
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111 | node.Nodes.Add(CreateTreeNode(subGroup));
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112 | return node;
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113 | }
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114 | private TreeNode CreateTreeNode(IOperator op) {
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115 | TreeNode node = new TreeNode();
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116 | node.Text = op.Name;
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117 | node.ToolTipText = op.GetType().Name;
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118 | node.Tag = op;
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119 | return node;
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120 | }
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121 | private void RemoveTreeNode(TreeNode node) {
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122 | if (node.Tag is IOperatorGroup) {
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123 | IOperatorGroup group = node.Tag as IOperatorGroup;
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124 | IOperatorGroup parent = node.Parent.Tag as IOperatorGroup;
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125 | parent.RemoveSubGroup(group);
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126 | } else if (node.Tag is IOperator) {
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127 | IOperator op = node.Tag as IOperator;
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128 | IOperatorGroup group = node.Parent.Tag as IOperatorGroup;
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129 | group.RemoveOperator(op);
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130 | }
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131 | node.Remove();
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132 | EnableDisableButtons();
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133 | }
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134 |
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135 | private void EnableDisableButtons() {
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136 | addGroupButton.Enabled = false;
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137 | addOperatorButton.Enabled = false;
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138 | removeButton.Enabled = false;
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139 | operatorsTreeView.Focus();
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140 |
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141 | if (operatorsTreeView.SelectedNode != null) {
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142 | if (operatorsTreeView.SelectedNode.Parent != null)
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143 | removeButton.Enabled = true;
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144 | if (operatorsTreeView.SelectedNode.Tag is IOperatorGroup) {
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145 | addGroupButton.Enabled = true;
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146 | addOperatorButton.Enabled = true;
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147 | }
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148 | }
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149 | }
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150 |
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151 | private void MergeOperatorLibrary(IOperatorGroup src, IOperatorGroup dest) {
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152 | foreach(IOperator op in src.Operators) {
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153 | if(!Contains(dest, op)) {
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154 | dest.AddOperator(op);
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155 | }
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156 | }
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157 |
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158 | foreach(OperatorGroup group in src.SubGroups) {
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159 | bool mergedIntoExistingGroup = false;
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160 | // try to find a group in dest with matching name
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161 | foreach(OperatorGroup destGroup in dest.SubGroups) {
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162 | if(group.Name == destGroup.Name) {
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163 | MergeOperatorLibrary(group, destGroup);
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164 | mergedIntoExistingGroup = true;
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165 | break;
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166 | }
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167 | }
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168 | if(!mergedIntoExistingGroup) {
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169 | OperatorGroup newGroup = new OperatorGroup();
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170 | newGroup.Name = group.Name;
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171 | dest.AddSubGroup(newGroup);
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172 | MergeOperatorLibrary(group, newGroup);
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173 | }
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174 | }
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175 | }
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176 |
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177 | private bool Contains(IOperatorGroup group, IOperator op) {
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178 | foreach(IOperator destOp in group.Operators) {
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179 | if(op.Name == destOp.Name) {
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180 | return true;
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181 | }
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182 | }
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183 | return false;
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184 | }
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185 |
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186 |
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187 | #region TreeView Events
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188 | private void operatorsTreeView_AfterSelect(object sender, TreeViewEventArgs e) {
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189 | EnableDisableButtons();
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190 | }
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191 | private void operatorsTreeView_AfterLabelEdit(object sender, NodeLabelEditEventArgs e) {
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192 | e.CancelEdit = false;
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193 |
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194 | string name = e.Label;
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195 | if (name != null) {
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196 | if (e.Node.Tag is IOperatorGroup)
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197 | ((IOperatorGroup)e.Node.Tag).Name = name;
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198 | else if (e.Node.Tag is IOperator)
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199 | ((IOperator)e.Node.Tag).Name = name;
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200 | }
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201 | }
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202 | private void operatorsTreeView_DoubleClick(object sender, EventArgs e) {
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203 | if (operatorsTreeView.SelectedNode != null) {
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204 | IOperator op = operatorsTreeView.SelectedNode.Tag as IOperator;
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205 | if (op != null) {
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206 | IView view = MainFormManager.CreateDefaultView(op);
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207 | if (view != null) MainFormManager.MainForm.ShowView(view);
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208 | }
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209 | }
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210 | }
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211 | #endregion
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212 |
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213 | #region Button Events
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214 | private void addOperatorButton_Click(object sender, EventArgs e) {
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215 | if (chooseOperatorDialog == null) chooseOperatorDialog = new ChooseOperatorDialog();
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216 | if (chooseOperatorDialog.ShowDialog(this) == DialogResult.OK) {
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217 | TreeNode node = operatorsTreeView.SelectedNode;
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218 | IOperatorGroup group = node.Tag as IOperatorGroup;
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219 | group.AddOperator(chooseOperatorDialog.Operator);
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220 | node.Nodes.Add(CreateTreeNode(chooseOperatorDialog.Operator));
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221 | operatorsTreeView.Sort();
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222 | EnableDisableButtons();
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223 | }
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224 | }
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225 | private void addGroupButton_Click(object sender, EventArgs e) {
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226 | TreeNode node = operatorsTreeView.SelectedNode;
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227 | IOperatorGroup newGroup = new OperatorGroup();
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228 | IOperatorGroup group = node.Tag as OperatorGroup;
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229 | group.AddSubGroup(newGroup);
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230 | node.Nodes.Add(CreateTreeNode(newGroup));
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231 | operatorsTreeView.Sort();
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232 | EnableDisableButtons();
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233 | }
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234 | private void removeButton_Click(object sender, EventArgs e) {
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235 | TreeNode node = operatorsTreeView.SelectedNode;
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236 | RemoveTreeNode(node);
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237 | }
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238 | private void importButton_Click(object sender, EventArgs e) {
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239 | if(openFileDialog.ShowDialog() == DialogResult.OK) {
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240 | IOperatorLibrary loadedLibrary = (PersistenceManager.Load(openFileDialog.FileName) as IOperatorLibrary);
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241 | if(loadedLibrary == null) {
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242 | Auxiliary.ShowErrorMessageBox("The selected file does not contain an operator library");
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243 | } else {
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244 | MergeOperatorLibrary(loadedLibrary.Group, OperatorLibrary.Group);
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245 | Refresh();
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246 | }
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247 | }
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248 | }
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249 | #endregion
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250 |
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251 | #region Key Events
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252 | private void operatorsTreeView_KeyDown(object sender, KeyEventArgs e) {
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253 | TreeNode node = operatorsTreeView.SelectedNode;
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254 | if ((e.KeyCode == Keys.Delete) && (node != null) && (node.Parent != null))
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255 | RemoveTreeNode(operatorsTreeView.SelectedNode);
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256 | if ((e.KeyCode == Keys.F2) && (node != null))
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257 | node.BeginEdit();
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258 | }
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259 | #endregion
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260 |
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261 |
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262 | #region Mouse Events
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263 | private void operatorsTreeView_MouseDown(object sender, MouseEventArgs e) {
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264 | if (e.Button != MouseButtons.Right) return;
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265 | TreeNode clickedNode = operatorsTreeView.GetNodeAt(e.X, e.Y);
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266 | if (clickedNode != null) {
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267 | operatorsTreeView.SelectedNode = clickedNode;
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268 | operatorsTreeView.Refresh();
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269 | }
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270 | }
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271 | #endregion
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272 |
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273 |
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274 | #region Context Menu Events
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275 | private void contextMenuStrip_Opening(object sender, CancelEventArgs e) {
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276 | viewToolStripMenuItem.Enabled = false;
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277 | if (operatorsTreeView.SelectedNode != null) {
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278 | IOperator op = operatorsTreeView.SelectedNode.Tag as IOperator;
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279 | if (op != null) {
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280 | IItemView view = (IItemView)MainFormManager.CreateDefaultView(op);
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281 | if (view != null) {
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282 | viewToolStripMenuItem.Enabled = true;
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283 | viewToolStripMenuItem.Tag = view;
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284 | }
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285 | }
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286 | }
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287 | }
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288 | private void viewToolStripMenuItem_Click(object sender, EventArgs e) {
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289 | IView view = viewToolStripMenuItem.Tag as IView;
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290 | if (view != null) MainFormManager.MainForm.ShowView(view);
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291 | }
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292 | #endregion
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293 |
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294 | #region Drag and Drop Events
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295 | private void operatorsTreeView_ItemDrag(object sender, ItemDragEventArgs e) {
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296 | TreeNode node = (TreeNode)e.Item;
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297 | IOperator op = node.Tag as IOperator;
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298 | if (op != null) {
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299 | DataObject data = new DataObject();
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300 | data.SetData("IOperator", op);
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301 | data.SetData("DragSource", operatorsTreeView);
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302 | DoDragDrop(data, DragDropEffects.Copy);
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303 | }
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304 | }
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305 | private void operatorsTreeView_DragEnter(object sender, DragEventArgs e) {
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306 | e.Effect = DragDropEffects.None;
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307 | if (e.Data.GetDataPresent("IOperator")) {
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308 | Point p = operatorsTreeView.PointToClient(new Point(e.X, e.Y));
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309 | TreeNode node = operatorsTreeView.GetNodeAt(p);
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310 | if ((node != null) && (node.Tag is IOperatorGroup))
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311 | e.Effect = DragDropEffects.Copy;
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312 | }
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313 | }
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314 | private void operatorsTreeView_DragOver(object sender, DragEventArgs e) {
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315 | e.Effect = DragDropEffects.None;
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316 | if (e.Data.GetDataPresent("IOperator")) {
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317 | Point p = operatorsTreeView.PointToClient(new Point(e.X, e.Y));
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318 | TreeNode node = operatorsTreeView.GetNodeAt(p);
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319 | if ((node != null) && (node.Tag is IOperatorGroup))
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320 | e.Effect = DragDropEffects.Copy;
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321 | }
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322 | }
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323 | private void operatorsTreeView_DragDrop(object sender, DragEventArgs e) {
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324 | if (e.Effect != DragDropEffects.None) {
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325 | if (e.Data.GetDataPresent("IOperator")) {
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326 | IOperator op = (IOperator)e.Data.GetData("IOperator");
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327 | Point p = operatorsTreeView.PointToClient(new Point(e.X, e.Y));
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328 | TreeNode node = operatorsTreeView.GetNodeAt(p);
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329 | if (node != null) {
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330 | op = (IOperator)op.Clone();
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331 |
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332 | while (op.SubOperators.Count > 0)
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333 | op.RemoveSubOperator(0);
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334 |
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335 | IOperatorGroup group = (IOperatorGroup)node.Tag;
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336 | group.AddOperator(op);
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337 | node.Nodes.Add(CreateTreeNode(op));
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338 | operatorsTreeView.Sort();
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339 | EnableDisableButtons();
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340 | }
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341 | }
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342 | }
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343 | }
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344 | #endregion
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345 |
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346 | }
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347 | }
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