source: branches/2520_PersistenceReintegration/HeuristicLab.Clients.Hive.JobManager/3.3/ListViewItemComparer.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 12 months ago

#2520: updated year of copyrights

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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;
24using System.Windows.Forms;
25
26namespace HeuristicLab.Clients.Hive.JobManager {
27  public class ListViewItemComparer : IComparer {
28    private int[] cols;
29    public SortOrder[] Orders { get; set; }
30    private const string dateFormat = "dd.MM.yyyy HH:mm";
31
32    public ListViewItemComparer() {
33      cols = new []{ 0 };
34      Orders = new[] { SortOrder.Ascending };
35    }
36
37    public ListViewItemComparer(int[] columns, SortOrder[] orders) {
38      cols = columns;
39      Orders = orders;
40    }
41
42    public int Compare(object x, object y) {
43      int returnVal;
44      bool result;
45      ListViewItem listViewItemX, listViewItemY;
46      listViewItemX = x as ListViewItem;
47      listViewItemY = y as ListViewItem;
48
49      if (listViewItemX == null || listViewItemY == null) {
50        throw new ArgumentException(string.Format("The ListViewItemComparer expects ListViewItems but received {0} and {1}.",
51          x.GetType().ToString(), y.GetType().ToString()));
52      }
53
54      int cmpres = 0;
55      for (int i = 0; i < cols.Length && cmpres == 0; i++) {
56        string textX = listViewItemX.SubItems[cols[i]].Text;
57        string textY = listViewItemY.SubItems[cols[i]].Text;
58
59        DateTime dateX, dateY;
60        int intX, intY;
61        double doubleX, doubleY;
62
63        if(DateTime.TryParse(textX, out dateX) && DateTime.TryParse(textY, out dateY)) {
64          cmpres = DateTime.Compare(dateX, dateY);
65        } else if(Int32.TryParse(textX, out intX) && Int32.TryParse(textY, out intY)) {
66          cmpres = (intX == intY) ? 0 : (intX > intY) ? 1 : -1;
67        } else if(Double.TryParse(textX, out doubleX) && Double.TryParse(textY, out doubleY)) {
68          cmpres = (doubleX == doubleY) ? 0 : (doubleX > doubleY) ? 1 : -1;
69        } else {
70          cmpres = String.Compare(textX, textY);
71        }
72        if(Orders[i] == SortOrder.Descending) {
73          cmpres *= -1;
74        }
75      }
76      return cmpres;
77    }
78  }
79}
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