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source: branches/ALPS/HeuristicLab.ExtLibs/HeuristicLab.AvalonEdit/5.0.1/AvalonEdit-5.0.1/Rendering/TextViewWeakEventManager.cs @ 12048

Last change on this file since 12048 was 11700, checked in by jkarder, 10 years ago

#2077: created branch and added first version

File size: 3.1 KB
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1// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
2//
3// Permission is hereby granted, free of charge, to any person obtaining a copy of this
4// software and associated documentation files (the "Software"), to deal in the Software
5// without restriction, including without limitation the rights to use, copy, modify, merge,
6// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
7// to whom the Software is furnished to do so, subject to the following conditions:
8//
9// The above copyright notice and this permission notice shall be included in all copies or
10// substantial portions of the Software.
11//
12// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
13// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
15// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
16// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
17// DEALINGS IN THE SOFTWARE.
18
19using System;
20using ICSharpCode.AvalonEdit.Utils;
21
22namespace ICSharpCode.AvalonEdit.Rendering
23{
24  /// <summary>
25  /// Contains weak event managers for the TextView events.
26  /// </summary>
27  public static class TextViewWeakEventManager
28  {
29    /// <summary>
30    /// Weak event manager for the <see cref="TextView.DocumentChanged"/> event.
31    /// </summary>
32    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1034:NestedTypesShouldNotBeVisible")]
33    public sealed class DocumentChanged : WeakEventManagerBase<DocumentChanged, TextView>
34    {
35      /// <inheritdoc/>
36      protected override void StartListening(TextView source)
37      {
38        source.DocumentChanged += DeliverEvent;
39      }
40     
41      /// <inheritdoc/>
42      protected override void StopListening(TextView source)
43      {
44        source.DocumentChanged -= DeliverEvent;
45      }
46    }
47   
48    /// <summary>
49    /// Weak event manager for the <see cref="TextView.VisualLinesChanged"/> event.
50    /// </summary>
51    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1034:NestedTypesShouldNotBeVisible")]
52    public sealed class VisualLinesChanged : WeakEventManagerBase<VisualLinesChanged, TextView>
53    {
54      /// <inheritdoc/>
55      protected override void StartListening(TextView source)
56      {
57        source.VisualLinesChanged += DeliverEvent;
58      }
59     
60      /// <inheritdoc/>
61      protected override void StopListening(TextView source)
62      {
63        source.VisualLinesChanged -= DeliverEvent;
64      }
65    }
66   
67    /// <summary>
68    /// Weak event manager for the <see cref="TextView.ScrollOffsetChanged"/> event.
69    /// </summary>
70    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1034:NestedTypesShouldNotBeVisible")]
71    public sealed class ScrollOffsetChanged : WeakEventManagerBase<ScrollOffsetChanged, TextView>
72    {
73      /// <inheritdoc/>
74      protected override void StartListening(TextView source)
75      {
76        source.ScrollOffsetChanged += DeliverEvent;
77      }
78     
79      /// <inheritdoc/>
80      protected override void StopListening(TextView source)
81      {
82        source.ScrollOffsetChanged -= DeliverEvent;
83      }
84    }
85  }
86}
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