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60 lines
2.3 KiB
60 lines
2.3 KiB
// Copyright (c) 2009 Daniel Grunwald |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this |
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// software and associated documentation files (the "Software"), to deal in the Software |
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// without restriction, including without limitation the rights to use, copy, modify, merge, |
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons |
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// to whom the Software is furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in all copies or |
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// substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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// DEALINGS IN THE SOFTWARE. |
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using System; |
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using System.Windows; |
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using System.Windows.Media; |
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using ICSharpCode.AvalonEdit.Document; |
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using ICSharpCode.AvalonEdit.Rendering; |
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namespace AvalonEdit.Sample |
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{ |
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/// <summary> |
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/// Finds the word 'AvalonEdit' and makes it bold and italic. |
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/// </summary> |
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public class ColorizeAvalonEdit : DocumentColorizingTransformer |
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{ |
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protected override void ColorizeLine(DocumentLine line) |
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{ |
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int lineStartOffset = line.Offset; |
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string text = CurrentContext.Document.GetText(line); |
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int start = 0; |
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int index; |
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while ((index = text.IndexOf("AvalonEdit", start)) >= 0) { |
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base.ChangeLinePart( |
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lineStartOffset + index, // startOffset |
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lineStartOffset + index + 10, // endOffset |
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(VisualLineElement element) => { |
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// This lambda gets called once for every VisualLineElement |
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// between the specified offsets. |
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Typeface tf = element.TextRunProperties.Typeface; |
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// Replace the typeface with a modified version of |
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// the same typeface |
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element.TextRunProperties.SetTypeface(new Typeface( |
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tf.FontFamily, |
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FontStyles.Italic, |
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FontWeights.Bold, |
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tf.Stretch |
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)); |
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}); |
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start = index + 1; // search for next occurrence |
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} |
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} |
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} |
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}
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