1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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.Generic;
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24 | using System.ComponentModel;
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25 | using System.Drawing;
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26 | using System.Data;
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27 | using System.Linq;
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28 | using System.Text;
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29 | using System.Windows.Forms;
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30 | using HeuristicLab.MainForm;
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31 | using HeuristicLab.Core;
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32 | using HeuristicLab.Core.Views;
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33 | using Netron.Diagramming.Core;
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34 | using HeuristicLab.Parameters;
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35 | using HeuristicLab.MainForm.WindowsForms;
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36 | using HeuristicLab.Collections;
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37 | using System.Diagnostics;
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38 | using System.Threading;
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39 |
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40 | namespace HeuristicLab.Operators.Views.GraphVisualization {
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41 | [View("GraphVisualizationInfo View")]
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42 | [Content(typeof(GraphVisualizationInfo), false)]
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43 | public partial class GraphVisualizationInfoView : ContentView {
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44 | private BidirectionalLookup<IOperatorShapeInfo, IShape> shapeInfoShapeMapping;
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45 | private BidirectionalLookup<IOperatorShapeInfo, INotifyObservableDictionaryItemsChanged<string, IOperatorShapeInfo>> shapeInfoConnectionsMapping;
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46 | private BidirectionalLookup<IConnection, KeyValuePair<IConnector, IConnector>> connectionConnectorsMapping;
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47 |
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48 | private bool causedUpdateOfShapeInfo;
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49 | public GraphVisualizationInfoView() {
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50 | InitializeComponent();
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51 | this.causedUpdateOfShapeInfo = false;
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52 | this.shapeInfoShapeMapping = new BidirectionalLookup<IOperatorShapeInfo, IShape>();
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53 | this.shapeInfoConnectionsMapping = new BidirectionalLookup<IOperatorShapeInfo, INotifyObservableDictionaryItemsChanged<string, IOperatorShapeInfo>>();
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54 | this.connectionConnectorsMapping = new BidirectionalLookup<IConnection, KeyValuePair<IConnector, IConnector>>();
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55 | }
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56 |
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57 | public GraphVisualizationInfoView(GraphVisualizationInfo content)
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58 | : this() {
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59 | this.Content = content;
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60 | }
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61 |
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62 | public IController Controller {
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63 | get { return this.graphVisualization.Controller; }
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64 | }
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65 |
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66 | public new GraphVisualizationInfo Content {
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67 | get { return (GraphVisualizationInfo)base.Content; }
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68 | set { base.Content = value; }
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69 | }
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70 |
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71 | protected override void OnContentChanged() {
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72 | base.OnContentChanged();
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73 | this.UpdateContent();
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74 | }
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75 |
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76 | private void UpdateContent() {
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77 | foreach (IOperatorShapeInfo shapeInfo in this.shapeInfoShapeMapping.FirstValues)
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78 | this.RemoveShapeInfo(shapeInfo);
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79 |
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80 | this.shapeInfoShapeMapping.Clear();
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81 | this.shapeInfoConnectionsMapping.Clear();
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82 | this.connectionConnectorsMapping.Clear();
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83 |
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84 | foreach (IOperatorShapeInfo shapeInfo in this.Content.OperatorShapeInfos)
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85 | if (!this.shapeInfoShapeMapping.ContainsFirst(shapeInfo))
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86 | this.AddShapeInfo(shapeInfo);
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87 |
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88 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> connection in this.Content.Connections)
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89 | this.AddConnection(connection.Key.Key, connection.Key.Value, connection.Value);
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90 |
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91 | this.UpdateLayoutRoot();
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92 | }
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93 |
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94 | private void UpdateLayoutRoot() {
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95 | IOperatorShapeInfo shapeInfo = this.Content.InitialShape;
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96 | if (shapeInfo != null)
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97 | this.graphVisualization.Controller.Model.LayoutRoot = this.shapeInfoShapeMapping.GetByFirst(shapeInfo);
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98 | else
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99 | this.graphVisualization.Controller.Model.LayoutRoot = null;
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100 | }
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101 |
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102 | private void VisualizationInfo_InitialShapeChanged(object sender, EventArgs e) {
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103 | this.UpdateLayoutRoot();
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104 | }
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105 |
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106 | protected override void RegisterContentEvents() {
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107 | base.RegisterContentEvents();
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108 | this.Content.InitialShapeChanged += new EventHandler(VisualizationInfo_InitialShapeChanged);
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109 | this.Content.ObserveableShapeInfos.ItemsAdded += new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_ItemsAdded);
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110 | this.Content.ObserveableShapeInfos.ItemsRemoved += new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_ItemsRemoved);
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111 | this.Content.ObserveableShapeInfos.CollectionReset += new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_CollectionReset);
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112 |
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113 | this.Content.ObservableConnections.ItemsAdded += new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsAdded);
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114 | this.Content.ObservableConnections.ItemsRemoved += new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsRemoved);
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115 | this.Content.ObservableConnections.ItemsReplaced += new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsReplaced);
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116 | this.Content.ObservableConnections.CollectionReset += new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_CollectionReset);
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117 | }
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118 |
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119 | protected override void DeregisterContentEvents() {
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120 | base.DeregisterContentEvents();
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121 | this.Content.InitialShapeChanged -= new EventHandler(VisualizationInfo_InitialShapeChanged);
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122 | this.Content.ObserveableShapeInfos.ItemsAdded -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_ItemsAdded);
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123 | this.Content.ObserveableShapeInfos.ItemsRemoved -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_ItemsRemoved);
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124 | this.Content.ObserveableShapeInfos.CollectionReset -= new HeuristicLab.Collections.CollectionItemsChangedEventHandler<IOperatorShapeInfo>(ShapeInfos_CollectionReset);
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125 |
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126 | this.Content.ObservableConnections.ItemsAdded -= new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsAdded);
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127 | this.Content.ObservableConnections.ItemsRemoved -= new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsRemoved);
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128 | this.Content.ObservableConnections.ItemsReplaced -= new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_ItemsReplaced);
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129 | this.Content.ObservableConnections.CollectionReset -= new CollectionItemsChangedEventHandler<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>>(Connections_CollectionReset);
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130 | }
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131 |
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132 | private void ShapeInfos_CollectionReset(object sender, HeuristicLab.Collections.CollectionItemsChangedEventArgs<IOperatorShapeInfo> e) {
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133 | foreach (IOperatorShapeInfo shapeInfo in e.OldItems)
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134 | this.RemoveShapeInfo(shapeInfo);
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135 | foreach (IOperatorShapeInfo shapeInfo in e.Items)
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136 | this.AddShapeInfo(shapeInfo);
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137 | }
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138 |
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139 | private void ShapeInfos_ItemsAdded(object sender, HeuristicLab.Collections.CollectionItemsChangedEventArgs<IOperatorShapeInfo> e) {
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140 | foreach (IOperatorShapeInfo shapeInfo in e.Items)
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141 | this.AddShapeInfo(shapeInfo);
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142 | }
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143 |
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144 | private void ShapeInfos_ItemsRemoved(object sender, HeuristicLab.Collections.CollectionItemsChangedEventArgs<IOperatorShapeInfo> e) {
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145 | foreach (IOperatorShapeInfo shapeInfo in e.Items)
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146 | this.RemoveShapeInfo(shapeInfo);
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147 | }
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148 |
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149 | private void AddShapeInfo(IOperatorShapeInfo shapeInfo) {
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150 | this.RegisterShapeInfoEvents(shapeInfo);
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151 |
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152 | IShape shape = shapeInfo.CreateShape();
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153 | shape.OnEntityChange += new EventHandler<EntityEventArgs>(shape_OnEntityChange);
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154 | shape.OnMouseEnter += new EventHandler<EntityMouseEventArgs>(shape_OnMouseEnter);
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155 | shape.OnMouseLeave += new EventHandler<EntityMouseEventArgs>(shape_OnMouseLeave);
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156 | this.shapeInfoShapeMapping.Add(shapeInfo, shape);
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157 |
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158 | this.graphVisualization.Controller.Model.AddShape(shape);
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159 | this.graphVisualization.Invalidate();
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160 | }
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161 |
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162 | private void RemoveShapeInfo(IOperatorShapeInfo shapeInfo) {
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163 | this.DeregisterShapeInfoEvents(shapeInfo);
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164 | IShape shape = this.shapeInfoShapeMapping.GetByFirst(shapeInfo);
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165 | shape.OnEntityChange -= new EventHandler<EntityEventArgs>(shape_OnEntityChange);
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166 | shape.OnMouseEnter -= new EventHandler<EntityMouseEventArgs>(shape_OnMouseEnter);
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167 | shape.OnMouseLeave -= new EventHandler<EntityMouseEventArgs>(shape_OnMouseLeave);
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168 |
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169 | IConnection connection;
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170 | foreach (IConnector connector in shape.Connectors) {
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171 | connection = this.GetConnection(shapeInfo, connector.Name);
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172 | this.RemoveConnection(connection);
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173 | }
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174 |
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175 | this.shapeInfoShapeMapping.RemoveByFirst(shapeInfo);
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176 | this.shapeInfoConnectionsMapping.RemoveByFirst(shapeInfo);
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177 |
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178 | if (this.graphVisualization.Controller.Model.Shapes.Contains(shape)) {
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179 | this.graphVisualization.Controller.Model.RemoveShape(shape);
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180 | }
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181 | this.graphVisualization.Invalidate();
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182 | }
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183 |
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184 | private void RegisterShapeInfoEvents(IShapeInfo shapeInfo) {
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185 | shapeInfo.Changed += new EventHandler(shapeInfo_Changed);
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186 | }
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187 |
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188 | private void DeregisterShapeInfoEvents(IShapeInfo shapeInfo) {
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189 | shapeInfo.Changed -= new EventHandler(shapeInfo_Changed);
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190 | }
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191 |
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192 | private void Connections_CollectionReset(object sender, CollectionItemsChangedEventArgs<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>> e) {
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193 | IConnection connection;
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194 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items) {
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195 | connection = this.GetConnection(pair.Key.Key, pair.Key.Value);
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196 | this.RemoveConnection(connection);
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197 | }
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198 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items)
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199 | this.AddConnection(pair.Key.Key, pair.Key.Value, pair.Value);
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200 | }
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201 |
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202 | private void Connections_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>> e) {
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203 | IConnection connection;
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204 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items) {
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205 | connection = this.GetConnection(pair.Key.Key, pair.Key.Value);
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206 | this.RemoveConnection(connection);
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207 | }
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208 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items)
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209 | this.AddConnection(pair.Key.Key, pair.Key.Value, pair.Value);
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210 | }
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211 |
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212 | private void Connections_ItemsAdded(object sender, CollectionItemsChangedEventArgs<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>> e) {
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213 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items)
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214 | this.AddConnection(pair.Key.Key, pair.Key.Value, pair.Value);
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215 | }
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216 |
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217 | private void Connections_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo>> e) {
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218 | IConnection connection;
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219 | foreach (KeyValuePair<KeyValuePair<IOperatorShapeInfo, string>, IOperatorShapeInfo> pair in e.Items) {
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220 | connection = this.GetConnection(pair.Key.Key, pair.Key.Value);
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221 | this.RemoveConnection(connection);
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222 | }
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223 | }
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224 |
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225 | private void AddConnection(IOperatorShapeInfo shapeInfoFrom, string connectorName, IOperatorShapeInfo shapeInfoTo) {
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226 | IShape shapeFrom = this.shapeInfoShapeMapping.GetByFirst(shapeInfoFrom);
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227 | IShape shapeTo = this.shapeInfoShapeMapping.GetByFirst(shapeInfoTo);
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228 |
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229 | IConnector connectorFrom = shapeFrom.Connectors.Where(c => c.Name == connectorName).First();
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230 | IConnector connectorTo = shapeTo.Connectors.Where(c => c.Name == "Predecessor").FirstOrDefault();
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231 | KeyValuePair<IConnector, IConnector> connectorPair = new KeyValuePair<IConnector, IConnector>(connectorFrom, connectorTo);
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232 | if (!this.connectionConnectorsMapping.ContainsSecond(connectorPair)) {
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233 | IConnection connection = Factory.CreateConnection(connectorFrom, connectorTo);
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234 | this.connectionConnectorsMapping.Add(connection, connectorPair);
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235 | this.graphVisualization.Controller.Model.AddConnection(connection);
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236 | this.graphVisualization.Invalidate();
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237 | }
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238 | }
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239 |
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240 | private IConnection GetConnection(IOperatorShapeInfo shapeInfoFrom, string connectorName) {
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241 | IShape shape = this.shapeInfoShapeMapping.GetByFirst(shapeInfoFrom);
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242 | IConnector connector = shape.Connectors.Where(c => c.Name == connectorName).First();
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243 |
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244 | if (!this.connectionConnectorsMapping.SecondValues.Any(p => p.Key == connector))
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245 | return null;
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246 |
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247 | KeyValuePair<IConnector, IConnector> connectorPair = this.connectionConnectorsMapping.SecondValues.Where(p => p.Key == connector).FirstOrDefault();
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248 | return this.connectionConnectorsMapping.GetBySecond(connectorPair);
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249 | }
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250 |
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251 | private void ChangeConnection(IOperatorShapeInfo shapeInfoFrom, string connectorName, IOperatorShapeInfo shapeInfoTo) {
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252 | IConnection connection = this.GetConnection(shapeInfoFrom, connectorName);
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253 | IShape shapeTo = this.shapeInfoShapeMapping.GetByFirst(shapeInfoFrom);
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254 | IConnector connectorTo = shapeTo.Connectors.Where(c => c.Name == "Predecessor").First();
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255 |
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256 | connection.To.DetachFromParent();
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257 | connection.To.AttachTo(connectorTo);
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258 | this.graphVisualization.Invalidate();
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259 | }
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260 |
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261 | private void RemoveConnection(IConnection connection) {
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262 | if (connection == null)
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263 | return;
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264 |
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265 | if (connection.From.AttachedTo != null)
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266 | connection.From.DetachFromParent();
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267 | if (connection.To.AttachedTo != null)
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268 | connection.To.DetachFromParent();
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269 |
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270 | if (this.connectionConnectorsMapping.ContainsFirst(connection))
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271 | this.connectionConnectorsMapping.RemoveByFirst(connection);
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272 | if (this.graphVisualization.Controller.Model.Connections.Contains(connection))
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273 | this.graphVisualization.Controller.Model.Remove(connection);
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274 | this.graphVisualization.Invalidate();
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275 | }
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276 |
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277 |
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278 | private void shapeInfo_Changed(object sender, EventArgs e) {
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279 | if (this.causedUpdateOfShapeInfo)
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280 | return;
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281 |
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282 | this.causedUpdateOfShapeInfo = true;
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283 | IOperatorShapeInfo shapeInfo = (IOperatorShapeInfo)sender;
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284 | IShape shape = this.shapeInfoShapeMapping.GetByFirst(shapeInfo);
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285 | shapeInfo.UpdateShape(shape);
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286 | shape.Invalidate();
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287 | this.causedUpdateOfShapeInfo = false;
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288 | }
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289 |
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290 | private Cursor oldCursor;
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291 | private void shape_OnMouseEnter(object sender, EntityMouseEventArgs e) {
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292 | this.oldCursor = this.Cursor;
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293 | this.Controller.View.CurrentCursor = CursorPalette.Move;
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294 | }
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295 |
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296 | private void shape_OnMouseLeave(object sender, EntityMouseEventArgs e) {
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297 | this.Controller.View.CurrentCursor = this.oldCursor;
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298 | this.oldCursor = null;
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299 | }
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300 |
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301 | private void shape_OnEntityChange(object sender, EntityEventArgs e) {
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302 | if (this.causedUpdateOfShapeInfo)
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303 | return;
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304 |
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305 | this.causedUpdateOfShapeInfo = true;
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306 | IShape shape = e.Entity as IShape;
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307 | IOperatorShapeInfo shapeInfo = this.shapeInfoShapeMapping.GetBySecond(shape);
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308 | shapeInfo.Location = shape.Location;
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309 |
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310 | OperatorShape operatorShape = shape as OperatorShape;
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311 | if (operatorShape != null)
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312 | shapeInfo.Collapsed = operatorShape.Collapsed;
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313 |
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314 | this.graphVisualization.Invalidate();
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315 | this.causedUpdateOfShapeInfo = false;
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316 | }
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317 |
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318 | private void graphVisualization_OnEntityAdded(object sender, EntityEventArgs e) {
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319 | IConnection connection = e.Entity as IConnection;
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320 | if (connection != null && !this.connectionConnectorsMapping.ContainsFirst(connection)) {
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321 | IConnector connectorFrom = connection.From.AttachedTo;
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322 | IConnector connectorTo = connection.To.AttachedTo;
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323 | this.RemoveConnection(connection); //is added again by the model events
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324 |
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325 | if (connectorFrom != null && connectorTo != null && connectorFrom.Name != "Predecessor") {
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326 | IShape shapeFrom = (IShape)connectorFrom.Parent;
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327 | IShape shapeTo = (IShape)connectorTo.Parent;
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328 | IOperatorShapeInfo shapeInfoFrom = this.shapeInfoShapeMapping.GetBySecond(shapeFrom);
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329 | IOperatorShapeInfo shapeInfoTo = this.shapeInfoShapeMapping.GetBySecond(shapeTo);
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330 | string connectorName = connectorFrom.Name;
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331 |
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332 | if (shapeFrom != shapeTo) //avoid self references
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333 | this.Content.AddConnection(shapeInfoFrom, connectorName, shapeInfoTo);
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334 | }
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335 | }
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336 | }
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337 |
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338 | private void graphVisualization_OnEntityRemoved(object sender, EntityEventArgs e) {
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339 | IShape shape = e.Entity as IShape;
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340 | if (shape != null && this.shapeInfoShapeMapping.ContainsSecond(shape)) {
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341 | IOperatorShapeInfo shapeInfo = this.shapeInfoShapeMapping.GetBySecond(shape);
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342 | this.Content.RemoveShapeInfo(shapeInfo);
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343 | }
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344 |
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345 | IConnection connection = e.Entity as IConnection;
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346 | if (connection != null && this.connectionConnectorsMapping.ContainsFirst(connection)) {
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347 | IShape parentShape = (IShape)connection.From.AttachedTo.Parent;
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348 | IOperatorShapeInfo shapeInfo = this.shapeInfoShapeMapping.GetBySecond(parentShape);
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349 | string connectorName = connection.From.AttachedTo.Name;
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350 |
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351 | this.Content.RemoveConnection(shapeInfo, connectorName);
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352 | }
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353 | }
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354 |
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355 | internal void RelayoutGraph() {
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356 | if (this.shapeInfoShapeMapping.Count > 0
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357 | && this.connectionConnectorsMapping.Count > 0
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358 | && this.Content.InitialShape != null) { //otherwise the layout does not work
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359 | string layoutName = "Standard TreeLayout";
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360 | this.graphVisualization.Controller.RunActivity(layoutName);
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361 | this.graphVisualization.Invalidate();
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362 |
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363 | //fix to avoid negative shape positions after layouting
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364 | Thread.Sleep(300);
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365 | int minX = this.graphVisualization.Controller.Model.Shapes.Min(s => s.Location.X);
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366 | int shiftX = minX < 0 ? Math.Abs(minX) + 50 : 0;
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367 | int minY = this.graphVisualization.Controller.Model.Shapes.Min(s => s.Location.Y);
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368 | int shiftY = minY < 0 ? Math.Abs(minY) + 50 : 0;
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369 | if (minX < 0 || minY < 0) {
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370 | foreach (IShape s in this.Controller.Model.Shapes)
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371 | s.MoveBy(new Point(shiftX, shiftY));
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372 | }
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373 | }
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374 | }
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375 | }
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376 | } |
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