#region License Information /* HeuristicLab * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.ComponentModel; using System.Linq; using System.Windows.Forms; using HeuristicLab.Core; using HeuristicLab.Core.Views; using HeuristicLab.MainForm; using HeuristicLab.PluginInfrastructure; using HeuristicLab.Random; namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views { [View("Symbolic Expression Grammar Sample Tree")] public partial class SymbolicExpressionGrammarSampleExpressionTreeView : NamedItemView { private IRandom random; public SymbolicExpressionGrammarSampleExpressionTreeView() { InitializeComponent(); random = new MersenneTwister(); maxSampleTreeLength = int.Parse(maxTreeLengthTextBox.Text); maxSampleTreeDepth = int.Parse(maxTreeDepthTextBox.Text); foreach (var treeCreator in ApplicationManager.Manager.GetInstances()) { treeCreatorComboBox.Items.Add(treeCreator); } treeCreatorComboBox.SelectedItem = treeCreatorComboBox.Items.OfType().First(); } private int maxSampleTreeLength; public int MaxSampleTreeLength { get { return maxSampleTreeLength; } set { if (maxSampleTreeLength != value) { maxSampleTreeLength = value; UpdateSampleTreeView(); } } } private int maxSampleTreeDepth; public int MaxSampleTreeDepth { get { return maxSampleTreeDepth; } set { if (maxSampleTreeDepth != value) { maxSampleTreeDepth = value; UpdateSampleTreeView(); } } } public new ISymbolicExpressionGrammar Content { get { return (ISymbolicExpressionGrammar)base.Content; } set { base.Content = value; } } protected override void SetEnabledStateOfControls() { base.SetEnabledStateOfControls(); maxTreeLengthTextBox.Enabled = Content != null; maxTreeDepthTextBox.Enabled = Content != null; generateSampleTreeButton.Enabled = Content != null; } protected override void RegisterContentEvents() { base.RegisterContentEvents(); Content.Changed += new EventHandler(Content_Changed); } protected override void DeregisterContentEvents() { Content.Changed -= new EventHandler(Content_Changed); base.DeregisterContentEvents(); } protected override void OnContentChanged() { base.OnContentChanged(); if (Content == null) sampleTreeView.Content = null; else UpdateSampleTreeView(); } private void Content_Changed(object sender, System.EventArgs e) { UpdateSampleTreeView(); } private void UpdateSampleTreeView() { try { ISymbolicExpressionTreeCreator creator = (ISymbolicExpressionTreeCreator)treeCreatorComboBox.SelectedItem; ISymbolicExpressionTree tree = creator.CreateTree(random, Content, MaxSampleTreeLength, MaxSampleTreeDepth); foreach (var node in tree.Root.IterateNodesPrefix().OfType()) node.SetGrammar(null); sampleTreeView.Content = tree; } catch (Exception ex) { sampleTreeView.Content = null; ErrorHandling.ShowErrorDialog(ex); } } #region control events private void generateSampleTreeButton_Click(object sender, EventArgs e) { UpdateSampleTreeView(); } private void maxTreeLengthTextBox_Validating(object sender, CancelEventArgs e) { int maxTreeLength; if (int.TryParse(maxTreeLengthTextBox.Text, out maxTreeLength) && maxTreeLength > 3) { errorProvider.SetError(maxTreeLengthTextBox, string.Empty); e.Cancel = false; } else { errorProvider.SetError(maxTreeLengthTextBox, "Invalid value: maximum tree length must be larger than 3."); e.Cancel = true; } } private void maxTreeLengthTextBox_Validated(object sender, EventArgs e) { int maxTreeLength; if (int.TryParse(maxTreeLengthTextBox.Text, out maxTreeLength) && maxTreeLength > 3) { MaxSampleTreeLength = maxTreeLength; } } private void maxTreeDepthTextBox_Validating(object sender, CancelEventArgs e) { int maxTreeDepth; if (int.TryParse(maxTreeDepthTextBox.Text, out maxTreeDepth) && maxTreeDepth > 3) { errorProvider.SetError(maxTreeDepthTextBox, string.Empty); e.Cancel = false; } else { errorProvider.SetError(maxTreeDepthTextBox, "Invalid value: maximum tree depth must be larger than 3."); e.Cancel = true; } } private void maxTreeDepthTextBox_Validated(object sender, EventArgs e) { int maxTreeDepth; if (int.TryParse(maxTreeDepthTextBox.Text, out maxTreeDepth) && maxTreeDepth > 3) { MaxSampleTreeDepth = maxTreeDepth; } } #endregion private void treeCreatorComboBox_SelectedIndexChanged(object sender, EventArgs e) { } } }