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source: branches/PersistenceReintegration/HeuristicLab.ExtLibs/HeuristicLab.AvalonEdit/5.0.1/AvalonEdit-5.0.1/Rendering/HeightTreeLineNode.cs @ 14923

Last change on this file since 14923 was 11700, checked in by jkarder, 10 years ago

#2077: created branch and added first version

File size: 2.2 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 System.Collections.Generic;
21using System.Diagnostics;
22
23namespace ICSharpCode.AvalonEdit.Rendering
24{
25  struct HeightTreeLineNode
26  {
27    internal HeightTreeLineNode(double height)
28    {
29      this.collapsedSections = null;
30      this.height = height;
31    }
32   
33    internal double height;
34    internal List<CollapsedLineSection> collapsedSections;
35   
36    internal bool IsDirectlyCollapsed {
37      get { return collapsedSections != null; }
38    }
39   
40    internal void AddDirectlyCollapsed(CollapsedLineSection section)
41    {
42      if (collapsedSections == null)
43        collapsedSections = new List<CollapsedLineSection>();
44      collapsedSections.Add(section);
45    }
46   
47    internal void RemoveDirectlyCollapsed(CollapsedLineSection section)
48    {
49      Debug.Assert(collapsedSections.Contains(section));
50      collapsedSections.Remove(section);
51      if (collapsedSections.Count == 0)
52        collapsedSections = null;
53    }
54   
55    /// <summary>
56    /// Returns 0 if the line is directly collapsed, otherwise, returns <see cref="height"/>.
57    /// </summary>
58    internal double TotalHeight {
59      get {
60        return IsDirectlyCollapsed ? 0 : height;
61      }
62    }
63  }
64}
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