1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 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 HeuristicLab.Core.Views;
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25 | using HeuristicLab.Data;
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26 | using HeuristicLab.Encodings.PermutationEncoding;
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27 | using HeuristicLab.MainForm;
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28 |
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29 | namespace HeuristicLab.Problems.PTSP.Views {
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30 | /// <summary>
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31 | /// The base class for visual representations of a path tour for a PTSP.
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32 | /// </summary>
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33 | [View("PathPTSPTour View")]
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34 | [Content(typeof(PathPTSPTour), true)]
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35 | public sealed partial class PathPTSPTourView : ItemView {
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36 | public new PathPTSPTour Content {
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37 | get { return (PathPTSPTour)base.Content; }
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38 | set { base.Content = value; }
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39 | }
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40 |
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41 | /// <summary>
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42 | /// Initializes a new instance of <see cref="PathPTSPTourView"/>.
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43 | /// </summary>
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44 | public PathPTSPTourView() {
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45 | InitializeComponent();
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46 | }
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47 |
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48 | protected override void DeregisterContentEvents() {
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49 | Content.QualityChanged -= new EventHandler(Content_QualityChanged);
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50 | Content.CoordinatesChanged -= new EventHandler(Content_CoordinatesChanged);
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51 | Content.PermutationChanged -= new EventHandler(Content_PermutationChanged);
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52 | Content.ProbabilitiesChanged -= new EventHandler(Content_ProbabilitiesChanged);
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53 | base.DeregisterContentEvents();
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54 | }
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55 | protected override void RegisterContentEvents() {
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56 | base.RegisterContentEvents();
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57 | Content.QualityChanged += new EventHandler(Content_QualityChanged);
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58 | Content.CoordinatesChanged += new EventHandler(Content_CoordinatesChanged);
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59 | Content.PermutationChanged += new EventHandler(Content_PermutationChanged);
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60 | Content.ProbabilitiesChanged += new EventHandler(Content_ProbabilitiesChanged);
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61 | }
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62 |
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63 | protected override void OnContentChanged() {
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64 | base.OnContentChanged();
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65 | if (Content == null) {
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66 | qualityViewHost.Content = null;
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67 | pictureBox.Image = null;
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68 | tourViewHost.Content = null;
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69 | } else {
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70 | qualityViewHost.Content = Content.Quality;
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71 | GenerateImage();
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72 | tourViewHost.Content = Content.Permutation;
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73 | }
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74 | }
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75 |
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76 | protected override void SetEnabledStateOfControls() {
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77 | base.SetEnabledStateOfControls();
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78 | qualityGroupBox.Enabled = Content != null;
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79 | pictureBox.Enabled = Content != null;
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80 | tourGroupBox.Enabled = Content != null;
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81 | }
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82 |
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83 | private void GenerateImage() {
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84 | if ((pictureBox.Width > 0) && (pictureBox.Height > 0)) {
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85 | if (Content == null) {
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86 | pictureBox.Image = null;
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87 | } else {
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88 | DoubleMatrix coordinates = Content.Coordinates;
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89 | Permutation permutation = Content.Permutation;
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90 | DoubleArray probabilities = Content.Probabilities;
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91 | Bitmap bitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
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92 |
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93 | if ((coordinates != null) && (coordinates.Rows > 0) && (coordinates.Columns == 2) && (probabilities.Length == coordinates.Rows)) {
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94 | double xMin = double.MaxValue, yMin = double.MaxValue, xMax = double.MinValue, yMax = double.MinValue;
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95 | for (int i = 0; i < coordinates.Rows; i++) {
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96 | if (xMin > coordinates[i, 0]) xMin = coordinates[i, 0];
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97 | if (yMin > coordinates[i, 1]) yMin = coordinates[i, 1];
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98 | if (xMax < coordinates[i, 0]) xMax = coordinates[i, 0];
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99 | if (yMax < coordinates[i, 1]) yMax = coordinates[i, 1];
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100 | }
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101 |
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102 | int border = 20;
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103 | double xStep = xMax != xMin ? (pictureBox.Width - 2 * border) / (xMax - xMin) : 1;
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104 | double yStep = yMax != yMin ? (pictureBox.Height - 2 * border) / (yMax - yMin) : 1;
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105 |
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106 | Point[] points = new Point[coordinates.Rows];
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107 | for (int i = 0; i < coordinates.Rows; i++)
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108 | points[i] = new Point(border + ((int)((coordinates[i, 0] - xMin) * xStep)),
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109 | bitmap.Height - (border + ((int)((coordinates[i, 1] - yMin) * yStep))));
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110 |
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111 | using (Graphics graphics = Graphics.FromImage(bitmap)) {
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112 | if (permutation != null && permutation.Length > 1) {
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113 | Point[] tour = new Point[permutation.Length];
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114 | for (int i = 0; i < permutation.Length; i++) {
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115 | if (permutation[i] >= 0 && permutation[i] < points.Length)
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116 | tour[i] = points[permutation[i]];
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117 | }
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118 | graphics.DrawPolygon(Pens.Black, tour);
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119 | }
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120 | for (int i = 0; i < points.Length; i++)
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121 | graphics.FillRectangle(Brushes.Red, points[i].X - 2, points[i].Y - 2, Convert.ToInt32(probabilities[i] * 20), Convert.ToInt32(probabilities[i] * 20));
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122 | }
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123 | } else {
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124 | using (Graphics graphics = Graphics.FromImage(bitmap)) {
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125 | graphics.Clear(Color.White);
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126 | Font font = new Font(FontFamily.GenericSansSerif, 12, FontStyle.Regular);
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127 | string text = "No coordinates defined or in wrong format.";
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128 | SizeF strSize = graphics.MeasureString(text, font);
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129 | graphics.DrawString(text, font, Brushes.Black, (float)(pictureBox.Width - strSize.Width) / 2.0f, (float)(pictureBox.Height - strSize.Height) / 2.0f);
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130 | }
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131 | }
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132 | pictureBox.Image = bitmap;
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133 | }
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134 | }
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135 | }
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136 |
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137 | private void Content_QualityChanged(object sender, EventArgs e) {
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138 | if (InvokeRequired)
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139 | Invoke(new EventHandler(Content_QualityChanged), sender, e);
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140 | else
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141 | qualityViewHost.Content = Content.Quality;
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142 | }
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143 | private void Content_CoordinatesChanged(object sender, EventArgs e) {
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144 | if (InvokeRequired)
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145 | Invoke(new EventHandler(Content_CoordinatesChanged), sender, e);
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146 | else
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147 | GenerateImage();
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148 | }
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149 | private void Content_PermutationChanged(object sender, EventArgs e) {
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150 | if (InvokeRequired)
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151 | Invoke(new EventHandler(Content_PermutationChanged), sender, e);
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152 | else {
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153 | GenerateImage();
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154 | tourViewHost.Content = Content.Permutation;
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155 | }
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156 | }
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157 | private void Content_ProbabilitiesChanged(object sender, EventArgs e) {
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158 | if (InvokeRequired)
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159 | Invoke(new EventHandler(Content_ProbabilitiesChanged), sender, e);
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160 | else {
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161 | GenerateImage();
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162 | }
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163 | }
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164 |
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165 | private void pictureBox_SizeChanged(object sender, EventArgs e) {
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166 | GenerateImage();
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167 | }
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168 | }
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169 | }
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