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source: trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/Symbols/VariableView.cs @ 7869

Last change on this file since 7869 was 7869, checked in by sforsten, 12 years ago

#1821: it is now possible to select variables for the symbol VariableCondition

File size: 8.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Linq;
24using System.Windows.Forms;
25using HeuristicLab.Collections;
26using HeuristicLab.Core;
27using HeuristicLab.Core.Views;
28using HeuristicLab.Data;
29using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views;
30using HeuristicLab.MainForm;
31using HeuristicLab.MainForm.WindowsForms;
32
33
34namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Views {
35  [View("Variable View")]
36  [Content(typeof(Variable), true)]
37  public partial class VariableView : SymbolView {
38    private CheckedItemCollectionView<StringValue> variableNamesView;
39
40    public new Variable Content {
41      get { return (Variable)base.Content; }
42      set { base.Content = value; }
43    }
44
45    public VariableView() {
46      InitializeComponent();
47      variableNamesView = new CheckedItemCollectionView<StringValue>();
48      variableNamesView.Dock = DockStyle.Fill;
49      variableNamesTabPage.Controls.Add(variableNamesView);
50      variableNamesView.Content = new CheckedItemCollection<StringValue>();
51
52      RegisterVariableNamesViewContentEvents();
53    }
54
55    private void RegisterVariableNamesViewContentEvents() {
56      variableNamesView.Content.ItemsAdded += new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
57      variableNamesView.Content.ItemsRemoved += new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
58      variableNamesView.Content.CheckedItemsChanged += new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
59      variableNamesView.Content.CollectionReset += new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
60      foreach (var variable in variableNamesView.Content) {
61        variable.ValueChanged += new EventHandler(variable_ValueChanged);
62      }
63    }
64
65
66    private void DeregisterVariableNamesViewContentEvents() {
67      variableNamesView.Content.ItemsAdded -= new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
68      variableNamesView.Content.ItemsRemoved -= new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
69      variableNamesView.Content.CheckedItemsChanged -= new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
70      variableNamesView.Content.CollectionReset -= new CollectionItemsChangedEventHandler<StringValue>(variableNames_Changed);
71      foreach (var variable in variableNamesView.Content) {
72        variable.ValueChanged -= new EventHandler(variable_ValueChanged);
73      }
74    }
75
76
77    protected override void RegisterContentEvents() {
78      base.RegisterContentEvents();
79      Content.Changed += new EventHandler(Content_Changed);
80    }
81
82    protected override void DeregisterContentEvents() {
83      base.DeregisterContentEvents();
84      Content.Changed -= new EventHandler(Content_Changed);
85    }
86
87    protected override void OnContentChanged() {
88      base.OnContentChanged();
89      UpdateControl();
90    }
91
92    protected override void SetEnabledStateOfControls() {
93      base.SetEnabledStateOfControls();
94      weightInitializationMuTextBox.Enabled = Content != null;
95      weightInitializationMuTextBox.ReadOnly = ReadOnly;
96      weightInitializationSigmaTextBox.Enabled = Content != null;
97      weightInitializationSigmaTextBox.ReadOnly = ReadOnly;
98      additiveWeightChangeSigmaTextBox.Enabled = Content != null;
99      additiveWeightChangeSigmaTextBox.ReadOnly = ReadOnly;
100      multiplicativeWeightChangeSigmaTextBox.Enabled = Content != null;
101      multiplicativeWeightChangeSigmaTextBox.ReadOnly = ReadOnly;
102    }
103
104    #region content event handlers
105    private void Content_Changed(object sender, EventArgs e) {
106      UpdateControl();
107    }
108    #endregion
109
110    #region control event handlers
111    private void variableNames_Changed(object sender, CollectionItemsChangedEventArgs<StringValue> args) {
112      if (args.Items != null)
113        foreach (var newVar in args.Items)
114          newVar.ValueChanged += new EventHandler(variable_ValueChanged);
115      if (args.OldItems != null)
116        foreach (var oldVar in args.OldItems)
117          oldVar.ValueChanged -= new EventHandler(variable_ValueChanged);
118      UpdateContent();
119    }
120
121    private void variable_ValueChanged(object sender, EventArgs e) {
122      UpdateContent();
123    }
124
125    private void UpdateContent() {
126      if (Content != null) {
127        DeregisterContentEvents();
128        Content.VariableNames = variableNamesView.Content.CheckedItems.Select(x => x.Value).ToList();
129        RegisterContentEvents();
130      }
131    }
132
133    private void weightMuTextBox_TextChanged(object sender, EventArgs e) {
134      double nu;
135      if (double.TryParse(weightInitializationMuTextBox.Text, out nu)) {
136        Content.WeightMu = nu;
137        errorProvider.SetError(weightInitializationMuTextBox, string.Empty);
138      } else {
139        errorProvider.SetError(weightInitializationMuTextBox, "Invalid value");
140      }
141    }
142    private void weightSigmaTextBox_TextChanged(object sender, EventArgs e) {
143      double sigma;
144      if (double.TryParse(weightInitializationSigmaTextBox.Text, out sigma) && sigma >= 0.0) {
145        Content.WeightSigma = sigma;
146        errorProvider.SetError(weightInitializationSigmaTextBox, string.Empty);
147      } else {
148        errorProvider.SetError(weightInitializationSigmaTextBox, "Invalid value");
149      }
150    }
151
152    private void additiveWeightChangeSigmaTextBox_TextChanged(object sender, EventArgs e) {
153      double sigma;
154      if (double.TryParse(additiveWeightChangeSigmaTextBox.Text, out sigma) && sigma >= 0.0) {
155        Content.WeightManipulatorSigma = sigma;
156        errorProvider.SetError(additiveWeightChangeSigmaTextBox, string.Empty);
157      } else {
158        errorProvider.SetError(additiveWeightChangeSigmaTextBox, "Invalid value");
159      }
160    }
161    private void multiplicativeWeightChangeSigmaTextBox_TextChanged(object sender, EventArgs e) {
162      double sigma;
163      if (double.TryParse(multiplicativeWeightChangeSigmaTextBox.Text, out sigma) && sigma >= 0.0) {
164        Content.MultiplicativeWeightManipulatorSigma = sigma;
165        errorProvider.SetError(multiplicativeWeightChangeSigmaTextBox, string.Empty);
166      } else {
167        errorProvider.SetError(multiplicativeWeightChangeSigmaTextBox, "Invalid value");
168      }
169    }
170    #endregion
171
172    #region helpers
173    private void UpdateControl() {
174      if (Content == null) {
175        weightInitializationMuTextBox.Text = string.Empty;
176        weightInitializationSigmaTextBox.Text = string.Empty;
177        additiveWeightChangeSigmaTextBox.Text = string.Empty;
178        multiplicativeWeightChangeSigmaTextBox.Text = string.Empty;
179        // temporarily deregister to prevent circular calling of events
180        DeregisterVariableNamesViewContentEvents();
181        variableNamesView.Content.Clear();
182        RegisterVariableNamesViewContentEvents();
183      } else {
184        var existingEntries = variableNamesView.Content.ToList();
185
186        // temporarily deregister to prevent circular calling of events
187        DeregisterVariableNamesViewContentEvents();
188        // add additional entries
189        foreach (var variableName in Content.VariableNames.Except(existingEntries.Select(x => x.Value)))
190          variableNamesView.Content.Add(new StringValue(variableName), true);
191        foreach (var oldEntry in existingEntries.Where(x => !Content.VariableNames.Contains(x.Value)))
192          variableNamesView.Content.Remove(oldEntry);
193        RegisterVariableNamesViewContentEvents();
194
195        weightInitializationMuTextBox.Text = Content.WeightMu.ToString();
196        weightInitializationSigmaTextBox.Text = Content.WeightSigma.ToString();
197        additiveWeightChangeSigmaTextBox.Text = Content.WeightManipulatorSigma.ToString();
198        multiplicativeWeightChangeSigmaTextBox.Text = Content.MultiplicativeWeightManipulatorSigma.ToString();
199      }
200      SetEnabledStateOfControls();
201    }
202    #endregion
203  }
204}
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