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.Drawing.Drawing2D;
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25 | using System.Linq;
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26 | using System.Windows.Forms;
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27 | using HeuristicLab.Common.Resources;
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28 | using HeuristicLab.Core.Networks;
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29 | using HeuristicLab.Networks.Programmable;
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30 | using HeuristicLab.Visualization;
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31 |
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32 | namespace HeuristicLab.Networks.Views.NetworkVisualization.Views.ChartModes {
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33 | public class ConnectPortsChartMode : ChartMode {
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34 | protected PortRectangle startPortRectangle, endPortRectangle;
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35 |
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36 | public override Image Image { get { return VSImageLibrary.OrgChart; } }
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37 | public override string ToolTip { get { return "Connect Ports"; } }
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38 |
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39 | public ConnectPortsChartMode(ChartControl control) : base(control) { }
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40 |
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41 | public override void HandleOnMouseDown(object sender, MouseEventArgs e) {
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42 | base.HandleOnMouseDown(sender, e);
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43 |
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44 | if (!(chartControl.Tag is IUserDefinedNetwork)) return;
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45 |
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46 | switch (e.Button) {
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47 | case MouseButtons.Left:
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48 | var worldLocation = chartControl.Chart.TransformPixelToWorld(e.Location);
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49 | var nodeRectangles = chartControl.Chart.Group.Primitives.OfType<NodeRectangle>();
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50 | var portRectangles = nodeRectangles.SelectMany(x => x.NetworkItem.Ports.Select(x.GetPortRectangle));
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51 | startPortRectangle = portRectangles.FirstOrDefault(x => x.ContainsPoint(worldLocation));
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52 | break;
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53 | }
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54 | }
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55 |
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56 | public override void HandleOnMouseMove(object sender, MouseEventArgs e) {
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57 | base.HandleOnMouseMove(sender, e);
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58 |
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59 | if (!(chartControl.Tag is IUserDefinedNetwork)) return;
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60 |
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61 | try {
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62 | chartControl.PictureBox.Refresh();
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63 |
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64 | var worldLocation = chartControl.Chart.TransformPixelToWorld(e.Location);
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65 | var nodeRectangles = chartControl.Chart.Group.Primitives.OfType<NodeRectangle>();
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66 | var portRectangles = nodeRectangles.SelectMany(x => x.NetworkItem.Ports.Select(x.GetPortRectangle)).ToList();
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67 | var currentPortRectangle = portRectangles.FirstOrDefault(x => x.ContainsPoint(worldLocation));
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68 |
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69 | // TODO: highlight allowed port connections only
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70 |
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71 | Point startLocation = Point.Empty;
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72 | if (startPortRectangle != null) {
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73 | DrawCircleAroundPortRectangle(startPortRectangle);
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74 | startLocation = chartControl.Chart.TransformWorldToPixel(startPortRectangle.Point);
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75 | }
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76 |
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77 | Point endLocation = e.Location;
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78 | if (currentPortRectangle != null) {
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79 | DrawCircleAroundPortRectangle(currentPortRectangle);
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80 | endLocation = chartControl.Chart.TransformWorldToPixel(currentPortRectangle.Point);
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81 | }
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82 |
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83 | if (startPortRectangle != null)
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84 | DrawLineBetweenLocations(startLocation, endLocation);
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85 | } finally {
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86 | chartControl.PictureBox.Update();
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87 | }
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88 | }
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89 |
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90 | public override void HandleOnMouseUp(object sender, MouseEventArgs e) {
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91 | base.HandleOnMouseUp(sender, e);
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92 |
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93 | if (!(chartControl.Tag is IUserDefinedNetwork)) return;
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94 |
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95 | switch (e.Button) {
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96 | case MouseButtons.Left:
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97 | var worldLocation = chartControl.Chart.TransformPixelToWorld(e.Location);
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98 | var nodeRectangles = chartControl.Chart.Group.Primitives.OfType<NodeRectangle>();
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99 | var portRectangles = nodeRectangles.SelectMany(x => x.NetworkItem.Ports.Select(x.GetPortRectangle)).ToList();
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100 | endPortRectangle = portRectangles.FirstOrDefault(x => x.ContainsPoint(worldLocation));
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101 |
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102 | if (startPortRectangle == endPortRectangle && startPortRectangle == null || endPortRectangle == null) {
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103 | startPortRectangle = null;
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104 | endPortRectangle = null;
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105 | return;
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106 | }
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107 |
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108 | var startPort = (IConnectablePort)startPortRectangle.NetworkItem;
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109 | var endPort = (IConnectablePort)endPortRectangle.NetworkItem;
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110 |
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111 | // TODO: check if port connection is allowed
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112 |
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113 | startPort.ConnectedPort = endPort;
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114 |
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115 | startPortRectangle = null;
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116 | endPortRectangle = null;
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117 | break;
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118 | }
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119 | }
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120 |
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121 | protected virtual void DrawCircleAroundPortRectangle(PortRectangle portRectangle) {
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122 | var centerP = chartControl.Chart.TransformWorldToPixel(portRectangle.Point);
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123 | int a = (int)Math.Round(portRectangle.Size.Width / 2.0 * Math.Sqrt(2));
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124 | int b = (int)Math.Round(portRectangle.Size.Height / 2.0 * Math.Sqrt(2));
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125 |
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126 | using (var graphics = chartControl.PictureBox.CreateGraphics())
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127 | using (var pen = new Pen(Color.Green) { Width = 2f }) {
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128 | graphics.DrawEllipse(pen,
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129 | centerP.X - a,
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130 | centerP.Y - b,
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131 | a * 2,
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132 | b * 2);
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133 | }
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134 | }
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135 |
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136 | protected virtual void DrawLineBetweenLocations(Point startLocation, Point endLocation) {
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137 | using (var graphics = chartControl.PictureBox.CreateGraphics())
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138 | using (var pen = new Pen(Color.Green) { DashStyle = DashStyle.Dash, Width = 2f })
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139 | graphics.DrawLine(pen, startLocation.X, startLocation.Y, endLocation.X, endLocation.Y);
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140 | }
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141 | }
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142 | }
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