1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2012 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.ComponentModel;
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25 | using System.Linq;
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26 | using System.Windows.Forms;
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27 | using HeuristicLab.Common;
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28 | using HeuristicLab.Common.Resources;
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29 | using HeuristicLab.Core.Views;
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30 | using HeuristicLab.MainForm;
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31 | using HeuristicLab.Optimization;
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32 | using HeuristicLab.Optimization.Views;
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33 |
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34 | namespace HeuristicLab.OptimizationExpertSystem.Views {
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35 | [View("Expert-system Optimizer View")]
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36 | [Content(typeof(ExpertSystem), IsDefaultView = true)]
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37 | public partial class ExpertSystemView : NamedItemView {
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38 | protected TypeSelectorDialog problemTypeSelectorDialog;
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39 | protected virtual bool SuppressEvents { get; set; }
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40 | private bool okbDownloadInProgress;
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41 |
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42 | public new ExpertSystem Content {
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43 | get { return (ExpertSystem)base.Content; }
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44 | set { base.Content = value; }
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45 | }
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46 |
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47 | public ExpertSystemView() {
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48 | InitializeComponent();
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49 | // brings progress panel to front (it is not visible by default, but obstructs other elements in designer)
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50 | this.Controls.SetChildIndex(this.progressPanel, 0);
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51 | algorithmStartButton.Text = string.Empty;
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52 | algorithmStartButton.Image = VSImageLibrary.Play;
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53 | refreshMapButton.Text = string.Empty;
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54 | refreshMapButton.Image = VSImageLibrary.Refresh;
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55 | }
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56 |
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57 | protected override void Dispose(bool disposing) {
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58 | if (disposing) {
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59 | if (problemTypeSelectorDialog != null) problemTypeSelectorDialog.Dispose();
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60 | if (components != null) components.Dispose();
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61 | }
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62 | base.Dispose(disposing);
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63 | }
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64 |
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65 | protected override void DeregisterContentEvents() {
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66 | Content.PropertyChanged -= ContentOnPropertyChanged;
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67 | Content.SuggestedInstances.CollectionReset -= SuggestedInstancesOnChanged;
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68 | Content.SuggestedInstances.ItemsAdded -= SuggestedInstancesOnChanged;
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69 | Content.SuggestedInstances.ItemsMoved -= SuggestedInstancesOnChanged;
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70 | Content.SuggestedInstances.ItemsRemoved -= SuggestedInstancesOnChanged;
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71 | Content.SuggestedInstances.ItemsReplaced -= SuggestedInstancesOnChanged;
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72 | if (Content.Problem != null) Content.Problem.ProblemChanged -= ContentOnProblemChanged;
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73 | base.DeregisterContentEvents();
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74 | }
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75 | protected override void RegisterContentEvents() {
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76 | base.RegisterContentEvents();
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77 | Content.PropertyChanged += ContentOnPropertyChanged;
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78 | Content.SuggestedInstances.CollectionReset += SuggestedInstancesOnChanged;
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79 | Content.SuggestedInstances.ItemsAdded += SuggestedInstancesOnChanged;
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80 | Content.SuggestedInstances.ItemsMoved += SuggestedInstancesOnChanged;
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81 | Content.SuggestedInstances.ItemsRemoved += SuggestedInstancesOnChanged;
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82 | Content.SuggestedInstances.ItemsReplaced += SuggestedInstancesOnChanged;
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83 | if (Content.Problem != null) Content.Problem.ProblemChanged += ContentOnProblemChanged;
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84 | }
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85 |
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86 | protected override void OnContentChanged() {
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87 | base.OnContentChanged();
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88 | SuppressEvents = true;
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89 | okbDownloadInProgress = false;
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90 | try {
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91 | if (Content == null) {
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92 | maxEvaluationsTextBox.Text = String.Empty;
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93 |
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94 | problemViewHost.Content = null;
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95 | algorithmViewHost.Content = null;
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96 | runsView.Content = null;
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97 | kbViewHost.Content = null;
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98 | problemInstancesView.Content = null;
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99 | } else {
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100 | maxEvaluationsTextBox.Text = Content.MaximumEvaluations.ToString();
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101 | problemViewHost.Content = Content.Problem;
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102 | runsView.Content = Content.Runs;
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103 | kbViewHost.ViewType = typeof(RunCollectionRLDView);
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104 | kbViewHost.Content = Content.KnowledgeBase;
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105 | problemInstancesView.Content = Content.ProblemInstances;
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106 | }
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107 | } finally { SuppressEvents = false; }
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108 | UpdateSuggestedInstancesCombobox();
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109 | }
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110 |
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111 | protected override void SetEnabledStateOfControls() {
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112 | base.SetEnabledStateOfControls();
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113 | maxEvaluationsTextBox.Enabled = Content != null && !ReadOnly && !Locked;
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114 | problemViewHost.Enabled = Content != null && !ReadOnly && !Locked && !okbDownloadInProgress;
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115 | suggestedInstancesComboBox.Enabled = Content != null && !ReadOnly && !Locked && !okbDownloadInProgress;
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116 | algorithmStartButton.Enabled = Content != null && !ReadOnly && !Locked && suggestedInstancesComboBox.SelectedIndex >= 0;
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117 | algorithmViewHost.Enabled = Content != null && !ReadOnly && !Locked;
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118 | runsView.Enabled = Content != null;
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119 | kbViewHost.Enabled = Content != null && !okbDownloadInProgress;
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120 | problemInstancesView.Enabled = Content != null && !okbDownloadInProgress;
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121 | refreshMapButton.Enabled = Content != null;
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122 | okbDownloadButton.Enabled = Content != null && Content.Problem != null && Content.Problem.ProblemId >= 0 && !ReadOnly && !Locked && !okbDownloadInProgress;
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123 | }
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124 |
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125 | private void UpdateSuggestedInstancesCombobox() {
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126 | var prevSelection = (IAlgorithm)suggestedInstancesComboBox.SelectedItem;
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127 | var prevNewIndex = -1;
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128 | suggestedInstancesComboBox.Items.Clear();
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129 | if (Content == null) return;
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130 |
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131 | for (var i = 0; i < Content.SuggestedInstances.Count; i++) {
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132 | suggestedInstancesComboBox.Items.Add(Content.SuggestedInstances[i]);
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133 | if (prevSelection == null || Content.SuggestedInstances[i].Name == prevSelection.Name)
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134 | prevNewIndex = prevSelection == null ? 0 : i;
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135 | }
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136 | if (prevNewIndex >= 0) {
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137 | suggestedInstancesComboBox.SelectedIndex = prevNewIndex;
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138 | }
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139 | }
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140 |
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141 | #region Event Handlers
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142 | #region Content events
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143 | private void ContentOnProblemChanged(object sender, EventArgs eventArgs) {
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144 | UpdateSuggestedInstancesCombobox();
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145 | SetEnabledStateOfControls();
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146 | }
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147 |
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148 | private void ContentOnPropertyChanged(object sender, PropertyChangedEventArgs e) {
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149 | if (InvokeRequired) {
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150 | Invoke((Action<object, PropertyChangedEventArgs>)ContentOnPropertyChanged, sender, e);
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151 | return;
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152 | }
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153 | SuppressEvents = true;
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154 | try {
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155 | switch (e.PropertyName) {
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156 | case "KnowledgeBase": kbViewHost.Content = Content.KnowledgeBase; break;
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157 | case "MaximumEvaluations": maxEvaluationsTextBox.Text = Content.MaximumEvaluations.ToString(); break;
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158 | case "Problem":
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159 | problemViewHost.Content = Content.Problem;
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160 | Content.Problem.ProblemChanged += ContentOnProblemChanged;
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161 | break;
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162 | case "ProblemInstances": problemInstancesView.Content = Content.ProblemInstances; break;
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163 | }
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164 | } finally { SuppressEvents = false; }
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165 | SetEnabledStateOfControls();
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166 | }
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167 |
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168 | private void SuggestedInstancesOnChanged(object sender, EventArgs e) {
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169 | UpdateSuggestedInstancesCombobox();
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170 | }
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171 | #endregion
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172 |
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173 | #region Control events
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174 | private void maxEvaluationsTextBox_Validating(object sender, CancelEventArgs e) {
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175 | if (SuppressEvents) return;
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176 | if (InvokeRequired) {
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177 | Invoke((Action<object, CancelEventArgs>)maxEvaluationsTextBox_Validating, sender, e);
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178 | return;
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179 | }
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180 | int value;
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181 | if (!int.TryParse(maxEvaluationsTextBox.Text, out value)) {
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182 | e.Cancel = !maxEvaluationsTextBox.ReadOnly && maxEvaluationsTextBox.Enabled;
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183 | errorProvider.SetError(maxEvaluationsTextBox, "Please enter a valid integer number.");
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184 | } else {
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185 | Content.MaximumEvaluations = value;
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186 | e.Cancel = false;
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187 | errorProvider.SetError(maxEvaluationsTextBox, null);
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188 | }
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189 | }
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190 | #endregion
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191 |
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192 | private bool validDragOperation;
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193 | private void instancesDropPanel_DragEnter(object sender, DragEventArgs e) {
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194 | validDragOperation = false;
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195 | if (!ReadOnly && (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IRun)) {
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196 | validDragOperation = true;
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197 | } else if (!ReadOnly && (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IEnumerable)) {
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198 | validDragOperation = true;
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199 | var items = (IEnumerable)e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat);
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200 | foreach (object item in items)
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201 | validDragOperation = validDragOperation && (item is IRun);
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202 | }
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203 | }
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204 | private void instancesDropPanel_DragOver(object sender, DragEventArgs e) {
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205 | e.Effect = DragDropEffects.None;
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206 | if (!validDragOperation) return;
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207 | if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Link; // ALT key
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208 | else if ((e.KeyState & 4) == 4) e.Effect = DragDropEffects.Move; // SHIFT key
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209 | else if (e.AllowedEffect.HasFlag(DragDropEffects.Copy)) e.Effect = DragDropEffects.Copy;
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210 | else if (e.AllowedEffect.HasFlag(DragDropEffects.Move)) e.Effect = DragDropEffects.Move;
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211 | else if (e.AllowedEffect.HasFlag(DragDropEffects.Link)) e.Effect = DragDropEffects.Link;
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212 | }
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213 | private void instancesDropPanel_DragDrop(object sender, DragEventArgs e) {
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214 | if (e.Effect == DragDropEffects.None) return;
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215 | if (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IRun) {
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216 | var item = (IRun)e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat);
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217 | Content.ProblemInstances.Add(e.Effect.HasFlag(DragDropEffects.Copy) ? (IRun)item.Clone() : item);
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218 | } else if (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IEnumerable) {
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219 | var items = ((IEnumerable)e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat)).Cast<IRun>();
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220 | if (e.Effect.HasFlag(DragDropEffects.Copy)) {
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221 | var cloner = new Cloner();
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222 | items = items.Select(x => cloner.Clone(x));
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223 | }
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224 | Content.ProblemInstances.AddRange(items);
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225 | }
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226 | }
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227 | #endregion
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228 |
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229 | private void refreshMapButton_Click(object sender, EventArgs e) {
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230 | Content.UpdateInstanceMap();
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231 | }
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232 |
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233 | private void okbDownloadButton_Click(object sender, EventArgs e) {
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234 | if (Content.Problem.ProblemId < 0) {
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235 | MessageBox.Show("Please select a problem instance first.");
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236 | return;
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237 | }
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238 | var progress = new Progress();
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239 | progress.ProgressStateChanged += OkbDownloadProgressOnStateChanged;
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240 | Content.UpdateKnowledgeBaseAsync(progress);
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241 | MainFormManager.GetMainForm<MainForm.WindowsForms.MainForm>().AddOperationProgressToView(progressPanel, progress);
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242 | progressPanel.Visible = true;
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243 | SetEnabledStateOfControls();
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244 | }
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245 |
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246 | private void OkbDownloadProgressOnStateChanged(object sender, EventArgs eventArgs) {
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247 | var progress = (IProgress)sender;
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248 | okbDownloadInProgress = progress.ProgressState == ProgressState.Started;
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249 | SetEnabledStateOfControls();
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250 | if (!okbDownloadInProgress) {
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251 | progressPanel.Visible = false;
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252 | progress.ProgressStateChanged -= OkbDownloadProgressOnStateChanged;
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253 | }
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254 | }
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255 |
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256 | private void algorithmStartButton_Click(object sender, EventArgs e) {
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257 | var selectedInstance = (IAlgorithm)suggestedInstancesComboBox.SelectedItem;
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258 | var clone = (IAlgorithm)selectedInstance.Clone();
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259 | clone.Prepare(true);
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260 | clone.Start();
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261 | algorithmViewHost.Content = clone.Results;
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262 | }
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263 | }
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264 | }
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