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source: branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Optimization.Views/3.3/ProblemInstanceProviderView.cs @ 7610

Last change on this file since 7610 was 7610, checked in by sforsten, 12 years ago

#1784:

  • added export button and corrected the LoadData in RegressionInstanceProvider
  • added RegressionProblemView
File size: 5.1 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.IO;
24using System.Linq;
25using System.Windows.Forms;
26using HeuristicLab.Common.Resources;
27using HeuristicLab.MainForm;
28using HeuristicLab.MainForm.WindowsForms;
29using HeuristicLab.PluginInfrastructure;
30using HeuristicLab.Problems.Instances;
31
32namespace HeuristicLab.Optimization.Views {
33  [View("ProblemInstanceProviderView")]
34  [Content(typeof(IProblemInstanceProvider<>), IsDefaultView = true)]
35  public partial class ProblemInstanceProviderView<T> : AsynchronousContentView {
36
37    public new IProblemInstanceProvider<T> Content {
38      get { return (IProblemInstanceProvider<T>)base.Content; }
39      set { base.Content = value; }
40    }
41
42    public ProblemInstanceProviderView() {
43      InitializeComponent();
44      importButton.Text = String.Empty;
45      importButton.Image = VSImageLibrary.Open;
46      toolTip.SetToolTip(importButton, "Import a " + GetProblemType() + " instance from file.");
47      exportButton.Text = String.Empty;
48      exportButton.Image = VSImageLibrary.Save;
49      toolTip.SetToolTip(exportButton, "Export a " + GetProblemType() + " instance to a file.");
50      loadButton.Text = String.Empty;
51      loadButton.Image = VSImageLibrary.Checkout;
52      toolTip.SetToolTip(loadButton, "Load the selected instance.");
53    }
54
55    protected override void OnContentChanged() {
56      base.OnContentChanged();
57      if (Content == null) {
58        instancesComboBox.DataSource = null;
59      } else {
60        instancesComboBox.DisplayMember = "Name";
61        instancesComboBox.DataSource = Content.GetDataDescriptors().ToList();
62      }
63    }
64
65    protected override void SetEnabledStateOfControls() {
66      base.SetEnabledStateOfControls();
67      instancesComboBox.Enabled = !ReadOnly && !Locked && Content != null && Content.Consumer != null;
68      loadButton.Enabled = !ReadOnly && !Locked && Content != null && Content.Consumer != null;
69    }
70
71    protected virtual void loadButton_Click(object sender, EventArgs e) {
72      var descriptor = (IDataDescriptor)instancesComboBox.SelectedItem;
73      var instance = Content.LoadData(descriptor);
74      try {
75        Content.Consumer.Load(instance);
76      }
77      catch (Exception ex) {
78        MessageBox.Show(String.Format("This problem does not support loading the instance {0}: {1}", descriptor.Name, Environment.NewLine + ex.Message), "Cannot load instance");
79      }
80    }
81
82    protected virtual void importButton_Click(object sender, EventArgs e) {
83      openFileDialog.FileName = GetProblemType() + " instance";
84      if (openFileDialog.ShowDialog() == DialogResult.OK) {
85        T instance = default(T);
86        try {
87          instance = Content.LoadData(openFileDialog.FileName);
88        }
89        catch (Exception ex) {
90          MessageBox.Show(String.Format("There was an error parsing the file: {0}", Environment.NewLine + ex.Message), "Error while parsing", MessageBoxButtons.OK, MessageBoxIcon.Error);
91          return;
92        }
93        try {
94          Content.Consumer.Load(instance);
95        }
96        catch (Exception ex) {
97          MessageBox.Show(String.Format("This problem does not support loading the instance {0}: {1}", Path.GetFileName(openFileDialog.FileName), Environment.NewLine + ex.Message), "Cannot load instance");
98        }
99      }
100    }
101
102    protected virtual void exportButton_Click(object sender, EventArgs e) {
103      if (saveFileDialog.ShowDialog(this) == DialogResult.OK) {
104        try {
105          var descriptor = (IDataDescriptor)instancesComboBox.SelectedItem;
106          var instance = Content.LoadData(descriptor);
107          Content.SaveData(instance, saveFileDialog.FileName);
108        }
109        catch (Exception ex) {
110          ErrorHandling.ShowErrorDialog(this, ex);
111        }
112      }
113    }
114
115    private void comboBox_DataSourceChanged(object sender, EventArgs e) {
116      var comboBox = (ComboBox)sender;
117      if (comboBox.DataSource == null)
118        comboBox.Items.Clear();
119    }
120
121    protected virtual string GetProblemType() {
122      string dataTypeName = typeof(T).Name.Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries).Last();
123      if (dataTypeName.EndsWith("Data"))
124        return dataTypeName.Substring(0, dataTypeName.Length - "Data".Length);
125      else return dataTypeName;
126    }
127  }
128}
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