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source: trunk/HeuristicLab.MainForm/3.3/ContentAttribute.cs @ 16612

Last change on this file since 16612 was 16565, checked in by gkronber, 6 years ago

#2520: merged changes from PersistenceOverhaul branch (r16451:16564) into trunk

File size: 2.7 KB
RevLine 
[3437]1#region License Information
2/* HeuristicLab
[16565]3 * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
[3437]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.Linq;
25using System.Reflection;
26
27namespace HeuristicLab.MainForm {
28  [AttributeUsage(AttributeTargets.Class, AllowMultiple = true, Inherited = false)]
29  public sealed class ContentAttribute : Attribute {
30    public ContentAttribute(Type contentType) {
31      this.contentType = contentType;
32    }
33
34    public ContentAttribute(Type contentType, bool isDefaultView)
35      : this(contentType) {
36      this.isDefaultView = isDefaultView;
37    }
38
39    private bool isDefaultView;
40    public bool IsDefaultView {
41      get { return this.isDefaultView; }
42      set { this.isDefaultView = value; }
43    }
44
45    private Type contentType;
46    public Type ContentType {
47      get { return this.contentType; }
48    }
49
50    public static bool HasContentAttribute(MemberInfo viewType) {
51      ContentAttribute[] attributes = (ContentAttribute[])viewType.GetCustomAttributes(typeof(ContentAttribute), false);
52      return attributes.Length != 0;
53    }
54
55    public static bool CanViewType(MemberInfo viewType, Type content) {
56      ContentAttribute[] attributes = (ContentAttribute[])viewType.GetCustomAttributes(typeof(ContentAttribute), false);
57      return attributes.Any(a => content.IsAssignableTo(a.contentType));
58    }
59
60    internal static IEnumerable<Type> GetDefaultViewableTypes(Type viewType) {
61      ContentAttribute[] attributes = (ContentAttribute[])viewType.GetCustomAttributes(typeof(ContentAttribute), false);
62      return from a in attributes
63             where a.isDefaultView
64             select a.contentType;
65    }
66
67    internal static IEnumerable<Type> GetViewableTypes(Type viewType) {
68      ContentAttribute[] attributes = (ContentAttribute[])viewType.GetCustomAttributes(typeof(ContentAttribute), false);
69      return from a in attributes
70             select a.contentType;
71    }
72  }
73}
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