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.Core;
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24 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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25 | using System;
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26 | using System.Drawing;
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27 |
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28 | namespace HeuristicLab.Optimization.Networks {
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29 | [Item("Port", "Abstract base class for ports of an optimization network node.")]
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30 | [StorableClass]
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31 | public abstract class Port<T> : NamedItem, IPort<T> where T : class, IItem {
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32 | public static new Image StaticItemImage {
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33 | get { return HeuristicLab.Common.Resources.VSImageLibrary.Field; }
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34 | }
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35 |
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36 | [Storable]
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37 | protected T value;
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38 | public virtual T Value {
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39 | get { return value; }
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40 | protected set {
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41 | if (value != this.value) {
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42 | DeregisterValueEvents();
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43 | this.value = value;
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44 | RegisterValueEvents();
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45 | OnValueChanged();
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46 | }
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47 | }
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48 | }
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49 | object IPort.Value {
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50 | get { return Value; }
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51 | }
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52 |
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53 | [StorableConstructor]
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54 | protected Port(bool deserializing) : base(deserializing) { }
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55 | protected Port(Port<T> original, Cloner cloner)
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56 | : base(original, cloner) {
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57 | value = cloner.Clone(original.value);
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58 | RegisterValueEvents();
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59 | }
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60 | protected Port() : base("Port") { }
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61 | protected Port(string name) : base(name) { }
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62 | protected Port(string name, string description) : base(name, description) { }
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63 |
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64 | [StorableHook(HookType.AfterDeserialization)]
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65 | private void AfterDeserialization() {
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66 | RegisterValueEvents();
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67 | }
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68 |
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69 | public override string ToString() {
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70 | return Name + ": " + (Value != null ? Value.ToString() : "null");
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71 | }
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72 |
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73 | public event EventHandler ValueChanged;
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74 | protected virtual void OnValueChanged() {
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75 | EventHandler handler = ValueChanged;
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76 | if (handler != null) handler(this, EventArgs.Empty);
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77 | OnToStringChanged();
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78 | }
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79 |
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80 | protected virtual void RegisterValueEvents() {
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81 | if (value != null) {
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82 | value.ToStringChanged += new EventHandler(Value_ToStringChanged);
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83 | }
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84 | }
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85 | protected virtual void DeregisterValueEvents() {
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86 | if (value != null) {
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87 | value.ToStringChanged -= new EventHandler(Value_ToStringChanged);
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88 | }
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89 | }
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90 | private void Value_ToStringChanged(object sender, EventArgs e) {
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91 | OnToStringChanged();
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92 | }
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93 | }
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94 | }
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