/AvalonEdit/ICSharpCode.AvalonEdit/Rendering/SimpleTextSource.cs

 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.Diagnostics;
21using System.Windows.Media.TextFormatting;
22
23namespace ICSharpCode.AvalonEdit.Rendering
24{
25	sealed class SimpleTextSource : TextSource
26	{
27		readonly string text;
28		readonly TextRunProperties properties;
29		
30		public SimpleTextSource(string text, TextRunProperties properties)
31		{
32			this.text = text;
33			this.properties = properties;
34		}
35		
36		public override TextRun GetTextRun(int textSourceCharacterIndex)
37		{
38			if (textSourceCharacterIndex < text.Length)
39				return new TextCharacters(text, textSourceCharacterIndex, text.Length - textSourceCharacterIndex, properties);
40			else
41				return new TextEndOfParagraph(1);
42		}
43		
44		public override int GetTextEffectCharacterIndexFromTextSourceCharacterIndex(int textSourceCharacterIndex)
45		{
46			throw new NotImplementedException();
47		}
48		
49		public override TextSpan<CultureSpecificCharacterBufferRange> GetPrecedingText(int textSourceCharacterIndexLimit)
50		{
51			throw new NotImplementedException();
52		}
53	}
54}