1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using HeuristicLab.Common;
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23 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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24 | using System;
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25 | using System.Drawing;
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26 |
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27 | namespace HeuristicLab.Core.Networks {
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28 | [Item("PortParameter", "A parameter of a port.")]
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29 | [StorableClass]
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30 | public class PortParameter<T> : NetworkItem, IPortParameter<T> where T : class, IItem {
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31 | public static new Image StaticItemImage {
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32 | get { return HeuristicLab.Common.Resources.VSImageLibrary.Field; }
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33 | }
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34 | public override Image ItemImage {
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35 | get {
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36 | if (Type.HasFlag(PortParameterType.Input) && Type.HasFlag(PortParameterType.Output))
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37 | return HeuristicLab.Common.Resources.VSImageLibrary.Field;
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38 | else if (Type.HasFlag(PortParameterType.Input))
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39 | return HeuristicLab.Common.Resources.VSImageLibrary.ArrowDown;
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40 | else if (Type.HasFlag(PortParameterType.Output))
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41 | return HeuristicLab.Common.Resources.VSImageLibrary.ArrowUp;
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42 | else
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43 | return base.ItemImage;
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44 | }
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45 | }
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46 |
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47 | new public IPort Parent {
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48 | get { return (IPort)base.Parent; }
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49 | set {
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50 | // NOTE: never call setter directly as the Parent property is set by the node which contains the port
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51 | base.Parent = value;
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52 | }
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53 | }
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54 | public Type DataType {
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55 | get { return typeof(T); }
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56 | }
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57 | [Storable]
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58 | private PortParameterType type;
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59 | public PortParameterType Type {
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60 | get { return type; }
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61 | set {
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62 | if (value != type) {
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63 | type = value;
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64 | OnTypeChanged();
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65 | }
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66 | }
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67 | }
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68 | [Storable]
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69 | protected T defaultValue;
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70 | public T DefaultValue {
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71 | get { return defaultValue; }
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72 | set {
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73 | if (value != this.defaultValue) {
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74 | DeregisterDefaultValueEvents();
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75 | this.defaultValue = value;
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76 | RegisterDefaultValueEvents();
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77 | OnDefaultValueChanged();
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78 | }
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79 | }
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80 | }
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81 | IItem IPortParameter.DefaultValue {
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82 | get { return DefaultValue; }
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83 | set {
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84 | T val = value as T;
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85 | if ((value != null) && (val == null))
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86 | throw new InvalidOperationException(
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87 | string.Format("Type mismatch. Value is not a \"{0}\".",
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88 | typeof(T).GetPrettyName())
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89 | );
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90 | DefaultValue = val;
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91 | }
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92 | }
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93 |
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94 | [StorableConstructor]
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95 | protected PortParameter(bool deserializing) : base(deserializing) { }
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96 | protected PortParameter(PortParameter<T> original, Cloner cloner)
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97 | : base(original, cloner) {
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98 | this.type = original.type;
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99 | this.defaultValue = cloner.Clone(original.defaultValue);
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100 | RegisterDefaultValueEvents();
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101 | }
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102 | public PortParameter()
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103 | : base("PortParameter") {
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104 | type = PortParameterType.Input;
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105 | }
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106 | public PortParameter(string name)
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107 | : base(name) {
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108 | type = PortParameterType.Input;
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109 | }
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110 | public PortParameter(string name, string description)
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111 | : base(name, description) {
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112 | type = PortParameterType.Input;
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113 | }
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114 |
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115 | [StorableHook(HookType.AfterDeserialization)]
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116 | private void AfterDeserialization() {
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117 | RegisterDefaultValueEvents();
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118 | }
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119 |
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120 | public override IDeepCloneable Clone(Cloner cloner) {
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121 | return new PortParameter<T>(this, cloner);
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122 | }
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123 |
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124 | public override string ToString() {
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125 | var s = base.ToString();
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126 | if (DefaultValue != null)
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127 | s += ": " + DefaultValue.ToString();
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128 | return s;
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129 | }
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130 |
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131 | public event EventHandler TypeChanged;
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132 | protected virtual void OnTypeChanged() {
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133 | var handler = TypeChanged;
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134 | if (handler != null) handler(this, EventArgs.Empty);
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135 | OnItemImageChanged();
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136 | }
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137 |
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138 | public event EventHandler DefaultValueChanged;
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139 | protected virtual void OnDefaultValueChanged() {
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140 | var handler = DefaultValueChanged;
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141 | if (handler != null) handler(this, EventArgs.Empty);
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142 | OnToStringChanged();
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143 | }
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144 |
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145 | public IMessageValue<T> CreateMessageValue() {
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146 | if (DefaultValue == null)
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147 | return new MessageValue<T>(Name);
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148 | else
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149 | return new MessageValue<T>(Name, (T)DefaultValue.Clone());
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150 | }
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151 | IMessageValue IPortParameter.CreateMessageValue() {
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152 | return CreateMessageValue();
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153 | }
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154 |
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155 | #region DefaultValue Events
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156 | protected virtual void RegisterDefaultValueEvents() {
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157 | if (defaultValue != null) {
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158 | defaultValue.ToStringChanged += new EventHandler(DefaultValue_ToStringChanged);
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159 | }
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160 | }
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161 | protected virtual void DeregisterDefaultValueEvents() {
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162 | if (defaultValue != null) {
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163 | defaultValue.ToStringChanged -= new EventHandler(DefaultValue_ToStringChanged);
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164 | }
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165 | }
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166 | private void DefaultValue_ToStringChanged(object sender, EventArgs e) {
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167 | OnToStringChanged();
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168 | }
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169 | #endregion
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170 | }
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171 | }
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