source: trunk/sources/HeuristicLab.MainForm.WindowsForms/3.3/ContentView.cs @ 3566

Last change on this file since 3566 was 3566, checked in by mkommend, 12 years ago

removed ctors with contents in all views (ticket #972)

File size: 3.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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.Linq;
28using System.Text;
29using System.Windows.Forms;
30using HeuristicLab.Common;
31using System.Reflection;
32
33namespace HeuristicLab.MainForm.WindowsForms {
34  public partial class ContentView : View, IContentView {
35    public ContentView()
36      : base() {
37      InitializeComponent();
38      this.locked = false;
39    }
40
41    private IContent content;
42    public IContent Content {
43      get { return content; }
44      set {
45        if ((value != null) && (!MainFormManager.ViewCanViewContent(this, value)))
46          throw new ArgumentException(string.Format("View \"{0}\" cannot view object \"{1}\".", this.GetType().Name, value.GetType().Name));
47        if (InvokeRequired) {
48          Invoke(new Action<IContent>(delegate(IContent o) { this.Content = o; }), value);
49        } else {
50          if (this.content != value) {
51            if (this.content != null) this.DeregisterContentEvents();
52            this.content = value;
53            if (this.content != null) this.RegisterContentEvents();
54            this.OnContentChanged();
55            this.OnChanged();
56          }
57        }
58      }
59    }
60
61    private bool locked;
62    public virtual bool Locked {
63      get { return this.locked; }
64      set {
65        if (InvokeRequired) {
66          Action<bool> action = delegate(bool b) { this.Locked = b; };
67          Invoke(action, value);
68        } else {
69          if (value != locked) {
70            locked = value;
71            PropertyInfo prop = typeof(IContentView).GetProperty("Locked");
72            PropagateStateChanges(this, typeof(IContentView), prop);
73            OnLockedChanged();
74            OnChanged();
75          }
76        }
77      }
78    }
79    public event EventHandler LockedChanged;
80    protected virtual void OnLockedChanged() {
81      if (InvokeRequired)
82        Invoke((MethodInvoker)OnLockedChanged);
83      else {
84        EventHandler handler = LockedChanged;
85        if (handler != null)
86          handler(this, EventArgs.Empty);
87      }
88    }
89
90    /// <summary>
91    /// Adds eventhandlers to the current instance.
92    /// </summary>
93    protected virtual void RegisterContentEvents() {
94    }
95
96    /// <summary>
97    /// Removes the eventhandlers from the current instance.
98    /// </summary>
99    protected virtual void DeregisterContentEvents() {
100    }
101
102    /// <summary>
103    /// Is called when the content property changes.
104    /// </summary>
105    protected virtual void OnContentChanged() {
106    }
107  }
108}
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