1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 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.Drawing;
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24 | using System.Linq;
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25 | using HeuristicLab.Core.Networks;
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26 | using HeuristicLab.Visualization;
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27 |
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28 | namespace HeuristicLab.Networks.Views.NetworkVisualization {
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29 | public class PortRectangle : FixedSizeRectangle, INetworkItemPrimitive<IPort> {
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30 | private const int size = 10;
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31 |
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32 | public override Size Size {
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33 | get {
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34 | return new Size((int)Math.Round(size * Chart.WorldToPixelRatio.Width),
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35 | (int)Math.Round(size * Chart.WorldToPixelRatio.Height));
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36 | }
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37 | }
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38 |
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39 | protected IPort networkItem;
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40 | public IPort NetworkItem {
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41 | get { return networkItem; }
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42 | set {
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43 | if (networkItem == value) return;
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44 | if (networkItem != null) DeregisterNetworkItemEvents();
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45 | networkItem = value;
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46 | if (networkItem != null) RegisterNetworkItemEvents();
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47 | OnNetworkItemChanged();
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48 | }
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49 | }
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50 |
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51 | public PortRectangle(NodeRectangle nodeRectangle, IPort port)
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52 | : base(nodeRectangle.Chart, PointD.Empty, Size.Empty, Pens.Black, Brushes.Red) {
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53 | NetworkItem = port;
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54 | }
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55 |
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56 | protected virtual void RegisterNetworkItemEvents() {
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57 | networkItem.NameChanged += NetworkItemNameChanged;
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58 | var connectablePort = networkItem as IConnectablePort;
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59 | if (connectablePort != null) {
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60 | connectablePort.ConnectedPortChanged += Port_ConnectedPortChanged;
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61 | }
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62 | }
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63 |
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64 | protected virtual void DeregisterNetworkItemEvents() {
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65 | networkItem.NameChanged -= NetworkItemNameChanged;
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66 | var connectablePort = networkItem as IConnectablePort;
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67 | if (connectablePort != null) {
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68 | connectablePort.ConnectedPortChanged -= Port_ConnectedPortChanged;
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69 | }
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70 | }
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71 |
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72 | #region Events
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73 | public event EventHandler NetworkItemChanged;
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74 | protected virtual void OnNetworkItemChanged() {
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75 | UpdateToolTip();
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76 | var handler = NetworkItemChanged;
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77 | if (handler != null) handler(this, EventArgs.Empty);
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78 | }
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79 |
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80 | public event EventHandler NodeRectangleChanged;
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81 | protected virtual void OnNodeRectangleChanged() {
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82 | var handler = NodeRectangleChanged;
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83 | if (handler != null) handler(this, EventArgs.Empty);
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84 | }
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85 | #endregion
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86 |
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87 | #region Event Handlers
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88 | private void NetworkItemNameChanged(object sender, EventArgs e) {
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89 | UpdateToolTip();
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90 | }
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91 |
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92 | private void Port_ConnectedPortChanged(object sender, EventArgs e) {
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93 | var connectablePort = (IConnectablePort)networkItem;
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94 |
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95 | var connectionLines = Chart.Group.GetAllPrimitives(Point).OfType<ConnectionLine>();
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96 | var outgoingLines = connectionLines.Where(x => x.StartPortRectangle == this);
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97 |
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98 | foreach (var l in outgoingLines)
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99 | Chart.Group.Remove(l);
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100 |
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101 | var connectedPort = connectablePort.ConnectedPort as IConnectablePort;
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102 | if (connectedPort == null) return;
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103 |
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104 | var connectedNode = connectedPort.Parent;
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105 | if (connectedNode == null) return;
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106 |
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107 | var nodeRectangles = Chart.Group.Primitives.OfType<NodeRectangle>();
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108 | PortRectangle endPortRectangle = null;
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109 | foreach (var nodeRectangle in nodeRectangles) {
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110 | endPortRectangle = nodeRectangle.GetPortRectangle(connectedPort);
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111 | if (endPortRectangle != null) break;
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112 | }
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113 |
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114 | if (endPortRectangle == null) return;
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115 |
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116 | var connectionShape = new ConnectionLine(Chart, this, endPortRectangle);
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117 | Chart.Group.Add(connectionShape);
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118 |
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119 | }
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120 | #endregion
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121 |
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122 | #region Helpers
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123 | private void UpdateToolTip() {
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124 | ToolTipText = networkItem.Name;
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125 | }
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126 | #endregion
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127 | }
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128 | }
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