1 | using System;
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2 | using System.Collections;
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3 | using System.Collections.Generic;
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4 | using System.Drawing;
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5 | using System.Linq;
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6 | using System.Text;
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7 | using HeuristicLab.Collections;
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8 | using HeuristicLab.Common;
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9 | using HeuristicLab.Core;
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10 | using HeuristicLab.Data;
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11 | using HeuristicLab.Parameters;
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12 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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13 | using HeuristicLab.PluginInfrastructure;
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14 |
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15 | namespace HeuristicLab.Problems.MetaOptimization {
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16 | [StorableClass]
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17 | public class ParameterConfiguration : Item, IParameterConfiguration, IStorableContent {
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18 | public bool IsOptimizable {
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19 | get { return true; }
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20 | }
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21 |
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22 | [Storable]
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23 | public string Filename { get; set; }
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24 |
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25 | [Storable]
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26 | protected bool optimize;
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27 | public bool Optimize {
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28 | get { return optimize; }
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29 | set {
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30 | if (optimize != value) {
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31 | optimize = value;
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32 | if (optimize) {
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33 | PopulateValueConfigurations();
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34 | } else {
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35 | this.ValueConfigurations.Clear();
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36 | }
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37 | OnOptimizeChanged();
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38 | OnToStringChanged();
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39 | }
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40 | }
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41 | }
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42 |
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43 | [Storable]
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44 | private Image itemImage;
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45 | public virtual Image ItemImage {
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46 | get { return itemImage ?? base.ItemImage; }
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47 | }
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48 |
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49 | [Storable]
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50 | protected string parameterName;
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51 | public string ParameterName {
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52 | get { return parameterName; }
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53 | set {
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54 | if (parameterName != value) {
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55 | parameterName = value;
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56 | OnToStringChanged();
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57 | }
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58 | }
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59 | }
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60 |
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61 | [Storable]
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62 | protected Type parameterDataType;
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63 | public Type ParameterDataType {
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64 | get { return this.parameterDataType; }
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65 | }
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66 |
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67 | [Storable]
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68 | protected Type[] validTypes;
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69 | public Type[] ValidTypes {
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70 | get { return validTypes; }
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71 | protected set {
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72 | if (this.validTypes != value) {
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73 | this.validTypes = value;
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74 | }
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75 | }
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76 | }
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77 |
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78 | [Storable]
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79 | protected Type valueDataType;
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80 | public Type ValueDataType {
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81 | get { return valueDataType; }
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82 | protected set { this.valueDataType = value; }
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83 | }
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84 |
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85 | [Storable]
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86 | protected ICheckedValueConfigurationList valueConfigurations;
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87 | public ICheckedValueConfigurationList ValueConfigurations {
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88 | get { return this.valueConfigurations; }
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89 | protected set {
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90 | if (this.valueConfigurations != value) {
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91 | if (this.valueConfigurations != null) DeregisterValueConfigurationEvents();
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92 | this.valueConfigurations = value;
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93 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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94 | }
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95 | }
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96 | }
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97 |
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98 | [Storable]
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99 | private int actualValueConfigurationIndex = 0;
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100 | public int ActualValueConfigurationIndex {
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101 | get { return actualValueConfigurationIndex; }
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102 | set { actualValueConfigurationIndex = value; }
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103 | }
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104 |
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105 | [Storable]
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106 | protected ConstrainedValue actualValue;
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107 | public ConstrainedValue ActualValue {
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108 | get { return actualValue; }
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109 | set {
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110 | if (actualValue != value) {
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111 | DeregisterActualValueEvents();
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112 | actualValue = value;
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113 | RegisterActualValueEvents();
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114 | }
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115 | }
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116 | }
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117 |
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118 | [Storable]
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119 | protected bool isNullable;
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120 | public bool IsNullable {
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121 | get { return isNullable; }
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122 | protected set {
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123 | if (this.isNullable != value) {
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124 | this.isNullable = value;
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125 | }
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126 | }
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127 | }
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128 |
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129 | [Storable]
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130 | protected IItemSet<IItem> validValues;
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131 |
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132 | #region Constructors and Cloning
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133 | public ParameterConfiguration(string parameterName, IValueParameter valueParameter) {
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134 | this.ParameterName = parameterName;
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135 | this.parameterDataType = valueParameter.GetType();
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136 | this.valueDataType = valueParameter.DataType;
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137 | this.validValues = GetValidValues(valueParameter);
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138 | this.validTypes = GetValidTypes(valueParameter).ToArray();
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139 | this.IsNullable = valueParameter.ItemName.StartsWith("Optional");
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140 | this.itemImage = valueParameter.ItemImage;
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141 | if (IsNullable) {
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142 | validTypes = new List<Type>(validTypes) { typeof(NullValue) }.ToArray();
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143 | }
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144 | this.ValueConfigurations = new CheckedValueConfigurationList(this.validValues ?? CreateValidValues());
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145 | this.ActualValue = new ConstrainedValue(
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146 | valueParameter.Value != null ? valueParameter.Value : null, // don't clone here; otherwise settings of a non-optimized ValueParameter will not be synchronized with the ConstrainedValue
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147 | valueParameter.DataType,
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148 | this.validValues != null ? new ItemSet<IItem>(this.validValues) : CreateValidValues(),
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149 | this.IsNullable);
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150 | if (Optimize) {
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151 | PopulateValueConfigurations();
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152 | }
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153 | }
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154 |
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155 | public ParameterConfiguration() { }
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156 | [StorableConstructor]
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157 | protected ParameterConfiguration(bool deserializing) { }
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158 | protected ParameterConfiguration(ParameterConfiguration original, Cloner cloner)
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159 | : base(original, cloner) {
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160 | this.parameterName = original.ParameterName;
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161 | this.parameterDataType = original.parameterDataType;
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162 | this.valueDataType = original.ValueDataType;
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163 | this.validValues = cloner.Clone(original.validValues);
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164 | this.validTypes = original.validTypes.ToArray();
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165 | this.valueConfigurations = cloner.Clone(original.ValueConfigurations);
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166 | this.ActualValue = cloner.Clone(original.ActualValue);
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167 | this.optimize = original.optimize;
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168 | this.actualValueConfigurationIndex = original.actualValueConfigurationIndex;
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169 | this.isNullable = original.isNullable;
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170 | this.itemImage = original.itemImage;
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171 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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172 | }
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173 | public override IDeepCloneable Clone(Cloner cloner) {
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174 | return new ParameterConfiguration(this, cloner);
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175 | }
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176 | [StorableHook(HookType.AfterDeserialization)]
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177 | private void AfterDeserialization() {
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178 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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179 | }
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180 | #endregion
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181 |
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182 | private void RegisterValueConfigurationEvents() {
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183 | this.ValueConfigurations.CheckedItemsChanged += new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_CheckedItemsChanged);
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184 | this.ValueConfigurations.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_ItemsAdded);
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185 | this.ValueConfigurations.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_ItemsRemoved);
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186 | }
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187 |
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188 | private void DeregisterValueConfigurationEvents() {
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189 | this.ValueConfigurations.CheckedItemsChanged -= new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_CheckedItemsChanged);
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190 | this.ValueConfigurations.ItemsAdded -= new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_ItemsAdded);
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191 | this.ValueConfigurations.ItemsRemoved -= new CollectionItemsChangedEventHandler<IndexedItem<IValueConfiguration>>(ValueConfigurations_ItemsRemoved);
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192 | }
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193 |
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194 | private void RegisterActualValueEvents() {
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195 | if (this.ActualValue != null) this.ActualValue.ToStringChanged += new EventHandler(ActualValue_ToStringChanged);
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196 | }
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197 | private void DeregisterActualValueEvents() {
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198 | if (this.ActualValue != null) this.ActualValue.ToStringChanged -= new EventHandler(ActualValue_ToStringChanged);
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199 | }
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200 |
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201 | private void PopulateValueConfigurations() {
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202 | foreach (Type t in this.validTypes) {
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203 | if (t == typeof(NullValue)) {
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204 | this.ValueConfigurations.Add(new NullValueConfiguration());
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205 | } else {
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206 | IItem val;
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207 | if (ActualValue.Value != null && ActualValue.ValueDataType == t) {
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208 | val = (IItem)ActualValue.Value.Clone(); // use existing value for that type (if available)
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209 | } else {
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210 | val = CreateItem(t);
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211 | }
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212 | if (val is IParameterizedItem) {
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213 | this.ValueConfigurations.Add(new ParameterizedValueConfiguration(val, val.GetType()), true);
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214 | } else {
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215 | this.ValueConfigurations.Add(new RangeValueConfiguration(val, val.GetType()), true);
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216 | }
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217 | }
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218 | }
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219 | }
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220 |
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221 | private static IEnumerable<Type> GetValidTypes(IValueParameter parameter) {
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222 | // in case of IOperator return empty list, otherwise hundreds of types would be returned. this mostly occurs for Successor which will never be optimized
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223 | if (parameter.DataType == typeof(IOperator))
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224 | return new List<Type>();
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225 |
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226 | // return only one type for ValueTypeValues<> (Int, Double, Percent, Bool). Otherwise 2 types would be returned for DoubleValue (PercentValue which is derived)
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227 | if (IsSubclassOfRawGeneric(typeof(ValueTypeValue<>), parameter.DataType))
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228 | return new List<Type> { parameter.DataType };
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229 |
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230 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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231 | // use existing validvalues if known
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232 | var parameterValidValues = (IEnumerable)parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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233 | return parameterValidValues.Cast<object>().Select(x => x.GetType());
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234 | } else {
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235 | // otherwise use all assignable types
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236 | return ApplicationManager.Manager.GetTypes(parameter.DataType, true);
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237 | }
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238 | }
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239 |
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240 | private IItemSet<IItem> GetValidValues(IValueParameter parameter) {
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241 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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242 | var x = (IEnumerable)parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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243 | return new ItemSet<IItem>(x.Cast<IItem>().Select(y => (IItem)y.Clone())); // cloning actually saves memory, because references to event-subscribers are removed
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244 | } else {
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245 | return null;
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246 | }
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247 | }
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248 |
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249 | public IItem CreateItem(Type type) {
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250 | // no valid values; just instantiate
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251 | if (validValues == null)
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252 | return (IItem)Activator.CreateInstance(type);
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253 |
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254 | if (type == typeof(NullValue))
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255 | return new NullValue();
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256 |
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257 | // copy value from ValidValues; this ensures that previously set ActualNames for a type are kept
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258 | IItem value = this.validValues.Where(v => v.GetType() == type).SingleOrDefault();
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259 | if (value != null)
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260 | return value;
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261 |
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262 | return null;
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263 | }
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264 |
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265 | private IItemSet<IItem> CreateValidValues() {
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266 | var validValues = new ItemSet<IItem>();
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267 | foreach (Type t in this.validTypes) {
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268 | try {
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269 | var val = CreateItem(t);
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270 | validValues.Add(val);
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271 | }
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272 | catch (MissingMethodException) { /* Constructor is missing, don't use those types */ }
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273 | }
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274 | return validValues;
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275 | }
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276 |
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277 | private static bool IsSubclassOfRawGeneric(Type generic, Type toCheck) {
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278 | while (toCheck != typeof(object)) {
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279 | var cur = toCheck.IsGenericType ? toCheck.GetGenericTypeDefinition() : toCheck;
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280 | if (generic == cur) {
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281 | return true;
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282 | }
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283 | toCheck = toCheck.BaseType; // baseType is null when toCheck is an Interface
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284 | if (toCheck == null)
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285 | return false;
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286 | }
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287 | return false;
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288 | }
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289 |
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290 | void ValueConfigurations_CheckedItemsChanged(object sender, Collections.CollectionItemsChangedEventArgs<IndexedItem<IValueConfiguration>> e) {
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291 | OnToStringChanged();
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292 | }
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293 | void ValueConfigurations_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IndexedItem<IValueConfiguration>> e) {
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294 | OnToStringChanged();
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295 | }
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296 | void ValueConfigurations_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IndexedItem<IValueConfiguration>> e) {
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297 | OnToStringChanged();
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298 | }
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299 |
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300 | #region INamedItem Properties
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301 | public virtual string Name {
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302 | get { return ParameterName; }
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303 | set { throw new NotSupportedException(); }
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304 | }
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305 | public virtual string Description {
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306 | get { return base.ItemDescription; }
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307 | set { throw new NotSupportedException(); }
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308 | }
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309 | public virtual bool CanChangeDescription {
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310 | get { return false; }
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311 | }
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312 | public virtual bool CanChangeName {
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313 | get { return false; }
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314 | }
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315 | public override string ItemDescription {
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316 | get { return base.ItemDescription; }
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317 | }
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318 | public override string ItemName {
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319 | get { return base.ItemName; }
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320 | }
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321 | #endregion
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322 |
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323 | #region Events
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324 | void ActualValue_ToStringChanged(object sender, EventArgs e) {
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325 | OnToStringChanged();
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326 | }
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327 | #endregion
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328 |
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329 | #region Event Handler
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330 | public virtual event EventHandler NameChanged;
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331 | protected virtual void OnNameChanged(object sender, EventArgs e) {
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332 | var handler = NameChanged;
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333 | if (handler != null) handler(sender, e);
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334 | }
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335 |
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336 | public virtual event EventHandler<CancelEventArgs<string>> NameChanging;
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337 | protected virtual void OnNameChanging(object sender, CancelEventArgs<string> e) {
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338 | var handler = NameChanging;
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339 | if (handler != null) handler(sender, e);
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340 | }
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341 |
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342 | public virtual event EventHandler DescriptionChanged;
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343 | protected virtual void OnDescriptionChanged(object sender, EventArgs e) {
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344 | var handler = DescriptionChanged;
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345 | if (handler != null) handler(sender, e);
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346 | }
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347 |
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348 | public virtual event EventHandler IsOptimizableChanged;
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349 | private void OnIsOptimizableChanged() {
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350 | var handler = IsOptimizableChanged;
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351 | if (handler != null) handler(this, EventArgs.Empty);
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352 | }
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353 |
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354 | public virtual event EventHandler OptimizeChanged;
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355 | protected virtual void OnOptimizeChanged() {
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356 | var handler = OptimizeChanged;
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357 | if (handler != null) handler(this, EventArgs.Empty);
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358 | }
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359 | #endregion
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360 |
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361 | public override string ToString() {
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362 | if (Optimize) {
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363 | return string.Format("{0}: (Optimize: {1})", ParameterName, ValueConfigurations.CheckedItems.Count());
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364 | } else {
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365 | return string.Format("{0}: {1}", ParameterName, ActualValue.Value);
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366 | }
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367 | }
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368 |
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369 | public string ParameterInfoString {
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370 | get {
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371 | StringBuilder sb = new StringBuilder();
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372 | if (this.Optimize) {
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373 | var vc = this.ValueConfigurations[actualValueConfigurationIndex];
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374 | if (vc.ActualValue == null || vc.ActualValue.Value == null) {
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375 | sb.Append(string.Format("{0}: null", parameterName));
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376 | } else if (IsSubclassOfRawGeneric(typeof(ValueTypeValue<>), vc.ActualValue.Value.GetType())) {
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377 | // for int, double, bool use the value directly
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378 | sb.Append(string.Format("{0}: {1}", parameterName, this.ActualValue.Value.ToString()));
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379 | } else {
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380 | // for other types use NumberedName (this also uses the Number-Property for otherwise ambiguous ValueConfigurations)
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381 | sb.Append(string.Format("{0}: {1}", parameterName, vc.NumberedName));
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382 | }
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383 |
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384 | if (this.ActualValue.Value is IParameterizedItem) {
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385 | string subParams = this.ValueConfigurations[actualValueConfigurationIndex].ParameterInfoString;
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386 | if (!string.IsNullOrEmpty(subParams)) {
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387 | sb.Append(" (");
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388 | sb.Append(subParams);
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389 | sb.Append(")");
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390 | }
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391 | }
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392 | }
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393 | return sb.ToString();
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394 | }
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395 | }
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396 |
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397 | public static IParameterConfiguration Create(IParameterizedNamedItem parent, IParameter parameter) {
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398 | if (parameter is IValueParameter) {
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399 | IValueParameter valueParameter = parameter as IValueParameter;
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400 | return new ParameterConfiguration(parameter.Name, valueParameter);
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401 | }
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402 | return null;
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403 | }
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404 |
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405 | public void Parameterize(IValueParameter parameter) {
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406 | if (Optimize) {
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407 | if (this.ActualValue.Value is IParameterizedItem) {
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408 | ((ParameterizedValueConfiguration)this.ValueConfigurations[actualValueConfigurationIndex]).Parameterize((IParameterizedItem)this.ActualValue.Value);
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409 | }
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410 | }
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411 | var clonedValue = this.ActualValue.Value != null ? (IItem)this.ActualValue.Value.Clone() : null;
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412 | if(clonedValue != null) AdaptValidValues(parameter, clonedValue);
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413 | parameter.Value = clonedValue;
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414 | }
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415 |
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416 | /// <summary>
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417 | /// Adds value to the ValidValues of the parameter if they don't contain the value
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418 | /// </summary>
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419 | private void AdaptValidValues(IValueParameter parameter, IItem value) {
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420 | // this requires some tricky reflection, because the type is unknown at runtime so parameter.ValidValues cannot be casted to Collection<?>
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421 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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422 | var validValues = parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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423 | Type validValuesType = validValues.GetType();
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424 |
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425 | var containsMethod = validValuesType.GetMethod("Contains");
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426 | if (!(bool)containsMethod.Invoke(validValues, new object[] { value })) {
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427 | var addMethod = validValuesType.GetMethod("Add");
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428 | addMethod.Invoke(validValues, new object[] { value });
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429 | }
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430 | }
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431 | }
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432 |
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433 | public void Randomize(IRandom random) {
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434 | if (Optimize) {
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435 | foreach (var vc in this.ValueConfigurations) {
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436 | if (this.ValueConfigurations.ItemChecked(vc)) {
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437 | if (vc.Optimize) vc.Randomize(random);
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438 | }
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439 | }
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440 | do {
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441 | actualValueConfigurationIndex = random.Next(ValueConfigurations.Count());
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442 | } while (!this.ValueConfigurations.ItemChecked(this.ValueConfigurations[actualValueConfigurationIndex]));
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443 | this.ActualValue = this.ValueConfigurations[actualValueConfigurationIndex].ActualValue;
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444 | }
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445 | }
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446 |
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447 | public void Mutate(IRandom random, MutateDelegate mutate, IIntValueManipulator intValueManipulator, IDoubleValueManipulator doubleValueManipulator) {
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448 | if (Optimize) {
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449 | foreach (var vc in this.ValueConfigurations) {
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450 | if (this.ValueConfigurations.ItemChecked(vc)) {
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451 | if (vc.Optimize) vc.Mutate(random, mutate, intValueManipulator, doubleValueManipulator);
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452 | }
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453 | }
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454 | mutate(random, this, intValueManipulator, doubleValueManipulator);
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455 | }
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456 | }
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457 |
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458 | public void Cross(IRandom random, IOptimizable other, CrossDelegate cross, IIntValueCrossover intValueCrossover, IDoubleValueCrossover doubleValueCrossover) {
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459 | if (Optimize) {
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460 | IParameterConfiguration otherPc = (IParameterConfiguration)other;
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461 | for (int i = 0; i < this.ValueConfigurations.Count; i++) {
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462 | if (this.ValueConfigurations.ItemChecked(this.ValueConfigurations[i])) {
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463 | if (this.ValueConfigurations[i].Optimize) this.ValueConfigurations[i].Cross(random, otherPc.ValueConfigurations[i], cross, intValueCrossover, doubleValueCrossover);
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464 | }
|
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465 | }
|
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466 | cross(random, this, other, intValueCrossover, doubleValueCrossover);
|
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467 | }
|
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468 | }
|
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469 |
|
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470 | public void UpdateActualValueIndexToItem(IValueConfiguration vc) {
|
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471 | for (int i = 0; i < this.ValueConfigurations.Count(); i++) {
|
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472 | if (this.ValueConfigurations.ElementAt(i) == vc) {
|
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473 | this.actualValueConfigurationIndex = i;
|
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474 | return;
|
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475 | }
|
---|
476 | }
|
---|
477 | }
|
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478 |
|
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479 | public List<IOptimizable> GetAllOptimizables() {
|
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480 | var list = new List<IOptimizable>();
|
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481 | foreach (var vc in ValueConfigurations) {
|
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482 | if (vc.Optimize) {
|
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483 | list.Add(vc);
|
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484 | list.AddRange(vc.GetAllOptimizables());
|
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485 | }
|
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486 | }
|
---|
487 | return list;
|
---|
488 | }
|
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489 |
|
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490 | public void CollectOptimizedParameterNames(List<string> parameterNames, string prefix) {
|
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491 | foreach (var vc in ValueConfigurations) {
|
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492 | if (vc.Optimize) {
|
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493 | vc.CollectOptimizedParameterNames(parameterNames, prefix);
|
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494 | }
|
---|
495 | }
|
---|
496 | }
|
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497 |
|
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498 | public double CalculateSimilarity(IOptimizable optimizable) {
|
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499 | var other = (IParameterConfiguration)optimizable;
|
---|
500 | if (this.ActualValueConfigurationIndex == other.ActualValueConfigurationIndex) {
|
---|
501 | return this.ValueConfigurations[this.ActualValueConfigurationIndex].CalculateSimilarity(other.ValueConfigurations[other.ActualValueConfigurationIndex]);
|
---|
502 | } else {
|
---|
503 | return 0.0;
|
---|
504 | }
|
---|
505 | }
|
---|
506 | }
|
---|
507 | }
|
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