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source: trunk/sources/HeuristicLab.Data/DoubleDataView.cs @ 1009

Last change on this file since 1009 was 737, checked in by vdorfer, 16 years ago

Created API documentation for HeuristLab.Data namespace (#331)

File size: 3.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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.Collections.Generic;
24using System.ComponentModel;
25using System.Drawing;
26using System.Data;
27using System.Text;
28using System.Windows.Forms;
29using HeuristicLab.Core;
30
31namespace HeuristicLab.Data {
32  /// <summary>
33  /// The visual representation of the class <see cref="DoubleData"/>, symbolizing a double value.
34  /// </summary>
35  public partial class DoubleDataView : ViewBase {
36    /// <summary>
37    /// Gets or sets the double value to represent visually.
38    /// </summary>
39    /// <remarks>Uses property <see cref="HeuristicLab.Core.ViewBase.Item"/> of base class
40    /// <see cref="ViewBase"/>. No own data storage present.</remarks>
41    public DoubleData DoubleData {
42      get { return (DoubleData)Item; }
43      set { base.Item = value; }
44    }
45
46    /// <summary>
47    /// Initializes a new instance of the class <see cref="DoubleDataView"/>.
48    /// </summary>
49    public DoubleDataView() {
50      InitializeComponent();
51    }
52    /// <summary>
53    /// Initializes a new instance of the class <see cref="DoubleDataView"/> with the given
54    /// <paramref name="doubleData"/>.
55    /// <note type="caution"> No CopyConstructor! <paramref name="doubleData"/> is not copied!</note>
56    /// </summary>
57    /// <param name="doubleData">The double value to represent visually.</param>
58    public DoubleDataView(DoubleData doubleData)
59      : this() {
60      DoubleData = doubleData;
61    }
62
63    /// <summary>
64    /// Removes the eventhandler from the underlying <see cref="DoubleData"/>.
65    /// </summary>
66    /// <remarks>Calls <see cref="HeuristicLab.Core.ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.
67    /// </remarks>
68    protected override void RemoveItemEvents() {
69      DoubleData.Changed -= new EventHandler(DoubleData_Changed);
70      base.RemoveItemEvents();
71    }
72    /// <summary>
73    /// Adds an eventhandler to the underlying <see cref="DoubleData"/>.
74    /// </summary>
75    /// <remarks>Calls <see cref="HeuristicLab.Core.ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.
76    /// </remarks>
77    protected override void AddItemEvents() {
78      base.AddItemEvents();
79      DoubleData.Changed += new EventHandler(DoubleData_Changed);
80    }
81
82    /// <summary>
83    /// Updates the controls with the latest double value.
84    /// </summary>
85    protected override void UpdateControls() {
86      base.UpdateControls();
87      if (DoubleData == null) {
88        dataTextBox.Enabled = false;
89      } else {
90        dataTextBox.Enabled = true;
91        dataTextBox.Text = DoubleData.Data.ToString("r");
92      }
93    }
94
95    private void dataTextBox_Validating(object sender, CancelEventArgs e) {
96      e.Cancel = false;
97      try {
98        DoubleData.Data = double.Parse(dataTextBox.Text);
99      }
100      catch (Exception) {
101        dataTextBox.SelectAll();
102        e.Cancel = true;
103      }
104    }
105
106    private void DoubleData_Changed(object sender, EventArgs e) {
107      Refresh();
108    }
109  }
110}
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