[6803] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17181] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[6803] | 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.ComponentModel;
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| 24 | using System.Linq;
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| 25 | using System.Windows.Forms;
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| 26 | using HeuristicLab.Core;
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| 27 | using HeuristicLab.Core.Views;
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| 28 | using HeuristicLab.MainForm;
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| 29 | using HeuristicLab.PluginInfrastructure;
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| 30 | using HeuristicLab.Random;
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| 31 |
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| 32 | namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views {
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| 33 | [View("Symbolic Expression Grammar Sample Tree")]
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| 34 | public partial class SymbolicExpressionGrammarSampleExpressionTreeView : NamedItemView {
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| 35 | private IRandom random;
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| 36 | public SymbolicExpressionGrammarSampleExpressionTreeView() {
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| 37 | InitializeComponent();
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[7054] | 38 | random = new MersenneTwister();
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[6803] | 39 | maxSampleTreeLength = int.Parse(maxTreeLengthTextBox.Text);
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| 40 | maxSampleTreeDepth = int.Parse(maxTreeDepthTextBox.Text);
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[7012] | 41 | foreach (var treeCreator in ApplicationManager.Manager.GetInstances<ISymbolicExpressionTreeCreator>()) {
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| 42 | treeCreatorComboBox.Items.Add(treeCreator);
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| 43 | }
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[11138] | 44 | treeCreatorComboBox.SelectedItem = treeCreatorComboBox.Items.OfType<ProbabilisticTreeCreator>().First();
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[6803] | 45 | }
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| 46 |
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| 47 | private int maxSampleTreeLength;
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| 48 | public int MaxSampleTreeLength {
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| 49 | get { return maxSampleTreeLength; }
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| 50 | set {
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| 51 | if (maxSampleTreeLength != value) {
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| 52 | maxSampleTreeLength = value;
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| 53 | UpdateSampleTreeView();
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| 54 | }
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | private int maxSampleTreeDepth;
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| 59 | public int MaxSampleTreeDepth {
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| 60 | get { return maxSampleTreeDepth; }
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| 61 | set {
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| 62 | if (maxSampleTreeDepth != value) {
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| 63 | maxSampleTreeDepth = value;
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| 64 | UpdateSampleTreeView();
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| 65 | }
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| 66 | }
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| 67 | }
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| 68 |
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| 69 | public new ISymbolicExpressionGrammar Content {
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| 70 | get { return (ISymbolicExpressionGrammar)base.Content; }
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| 71 | set { base.Content = value; }
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| 72 | }
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| 73 |
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| 74 | protected override void SetEnabledStateOfControls() {
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| 75 | base.SetEnabledStateOfControls();
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| 76 | maxTreeLengthTextBox.Enabled = Content != null;
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| 77 | maxTreeDepthTextBox.Enabled = Content != null;
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| 78 | generateSampleTreeButton.Enabled = Content != null;
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| 79 | }
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| 80 |
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| 81 | protected override void RegisterContentEvents() {
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| 82 | base.RegisterContentEvents();
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| 83 | Content.Changed += new EventHandler(Content_Changed);
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| 84 | }
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| 85 |
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| 86 | protected override void DeregisterContentEvents() {
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| 87 | Content.Changed -= new EventHandler(Content_Changed);
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| 88 | base.DeregisterContentEvents();
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| 89 | }
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| 90 |
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| 91 | protected override void OnContentChanged() {
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| 92 | base.OnContentChanged();
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| 93 | if (Content == null) sampleTreeView.Content = null;
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| 94 | else UpdateSampleTreeView();
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| 95 | }
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| 96 |
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| 97 | private void Content_Changed(object sender, System.EventArgs e) {
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| 98 | UpdateSampleTreeView();
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| 99 | }
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| 100 |
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| 101 | private void UpdateSampleTreeView() {
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| 102 | try {
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[7054] | 103 | ISymbolicExpressionTreeCreator creator = (ISymbolicExpressionTreeCreator)treeCreatorComboBox.SelectedItem;
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[7012] | 104 | ISymbolicExpressionTree tree = creator.CreateTree(random, Content, MaxSampleTreeLength, MaxSampleTreeDepth);
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[6803] | 105 | foreach (var node in tree.Root.IterateNodesPrefix().OfType<SymbolicExpressionTreeTopLevelNode>())
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| 106 | node.SetGrammar(null);
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| 107 | sampleTreeView.Content = tree;
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| 108 | }
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| 109 | catch (Exception ex) {
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| 110 | sampleTreeView.Content = null;
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| 111 | ErrorHandling.ShowErrorDialog(ex);
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| 112 | }
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| 113 | }
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| 114 |
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| 115 | #region control events
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| 116 | private void generateSampleTreeButton_Click(object sender, EventArgs e) {
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| 117 | UpdateSampleTreeView();
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| 118 | }
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| 119 |
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| 120 | private void maxTreeLengthTextBox_Validating(object sender, CancelEventArgs e) {
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| 121 | int maxTreeLength;
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| 122 | if (int.TryParse(maxTreeLengthTextBox.Text, out maxTreeLength) && maxTreeLength > 3) {
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| 123 | errorProvider.SetError(maxTreeLengthTextBox, string.Empty);
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| 124 | e.Cancel = false;
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| 125 | } else {
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| 126 | errorProvider.SetError(maxTreeLengthTextBox, "Invalid value: maximum tree length must be larger than 3.");
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| 127 | e.Cancel = true;
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| 128 | }
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| 129 | }
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| 130 | private void maxTreeLengthTextBox_Validated(object sender, EventArgs e) {
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| 131 | int maxTreeLength;
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| 132 | if (int.TryParse(maxTreeLengthTextBox.Text, out maxTreeLength) && maxTreeLength > 3) {
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| 133 | MaxSampleTreeLength = maxTreeLength;
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| 134 | }
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| 135 | }
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| 136 |
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| 137 | private void maxTreeDepthTextBox_Validating(object sender, CancelEventArgs e) {
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| 138 | int maxTreeDepth;
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| 139 | if (int.TryParse(maxTreeDepthTextBox.Text, out maxTreeDepth) && maxTreeDepth > 3) {
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| 140 | errorProvider.SetError(maxTreeDepthTextBox, string.Empty);
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| 141 | e.Cancel = false;
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| 142 | } else {
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| 143 | errorProvider.SetError(maxTreeDepthTextBox, "Invalid value: maximum tree depth must be larger than 3.");
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| 144 | e.Cancel = true;
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| 145 | }
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| 146 | }
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| 147 | private void maxTreeDepthTextBox_Validated(object sender, EventArgs e) {
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| 148 | int maxTreeDepth;
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| 149 | if (int.TryParse(maxTreeDepthTextBox.Text, out maxTreeDepth) && maxTreeDepth > 3) {
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| 150 | MaxSampleTreeDepth = maxTreeDepth;
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| 151 | }
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| 152 | }
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| 153 | #endregion
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[7012] | 154 |
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| 155 | private void treeCreatorComboBox_SelectedIndexChanged(object sender, EventArgs e) {
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| 156 | }
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[6803] | 157 | }
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| 158 | }
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