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source: trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4/SymbolView.cs @ 6233

Last change on this file since 6233 was 6233, checked in by mkommend, 12 years ago

#1532:

  • Enabled renaming of symbols
  • Fixed cloning of grammers
  • Added readonly attribute in grammars to lock grammars during the algorithm run
  • Removed useless clone method in cloner
  • Changed CheckedItemCollectionViews to enable scrolling during the locked state
File size: 3.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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.ComponentModel;
24using System.Windows.Forms;
25using HeuristicLab.Core.Views;
26using HeuristicLab.MainForm;
27using HeuristicLab.MainForm.WindowsForms;
28
29namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views {
30  [View("Symbol View")]
31  [Content(typeof(ISymbol), false)]
32  public partial class SymbolView : NamedItemView {
33    public new ISymbol Content {
34      get { return (ISymbol)base.Content; }
35      set { base.Content = value; }
36    }
37
38    public SymbolView() {
39      InitializeComponent();
40    }
41
42    protected override void RegisterContentEvents() {
43      base.RegisterContentEvents();
44      Content.Changed += new EventHandler(Content_Changed);
45    }
46
47    protected override void DeregisterContentEvents() {
48      base.DeregisterContentEvents();
49      Content.Changed -= new EventHandler(Content_Changed);
50    }
51
52    protected override void OnContentChanged() {
53      base.OnContentChanged();
54      UpdateControl();
55    }
56
57    protected override void SetEnabledStateOfControls() {
58      base.SetEnabledStateOfControls();
59      initialFrequencyTextBox.Enabled = Content != null;
60      initialFrequencyTextBox.ReadOnly = ReadOnly;
61    }
62
63    #region content event handlers
64    private void Content_Changed(object sender, EventArgs e) {
65      UpdateControl();
66    }
67    #endregion
68
69    #region control event handlers
70    private void initialFrequencyTextBox_KeyDown(object sender, KeyEventArgs e) {
71      if ((e.KeyCode == Keys.Enter) || (e.KeyCode == Keys.Return))
72        initialFrequencyLabel.Select();  // select label to validate data
73
74      if (e.KeyCode == Keys.Escape) {
75        initialFrequencyTextBox.Text = Content.InitialFrequency.ToString();
76        initialFrequencyLabel.Select();  // select label to validate data
77      }
78    }
79    private void initialFrequencyTextBox_Validating(object sender, CancelEventArgs e) {
80      double freq;
81      if (double.TryParse(initialFrequencyTextBox.Text, out freq) && freq >= 0.0) {
82        errorProvider.SetError(initialFrequencyTextBox, string.Empty);
83        e.Cancel = false;
84      } else {
85        errorProvider.SetError(initialFrequencyTextBox, "Invalid value");
86        e.Cancel = true;
87      }
88    }
89    private void initialFrequencyTextBox_Validated(object sender, EventArgs e) {
90      double freq;
91      if (double.TryParse(initialFrequencyTextBox.Text, out freq) && freq >= 0.0) {
92        Content.InitialFrequency = freq;
93      }
94    }
95    #endregion
96
97    #region helpers
98    private void UpdateControl() {
99      if (Content == null) {
100        initialFrequencyTextBox.Text = string.Empty;
101      } else {
102        initialFrequencyTextBox.Text = Content.InitialFrequency.ToString();
103      }
104      SetEnabledStateOfControls();
105    }
106    #endregion
107  }
108}
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