48 lines
1.6 KiB
C#
48 lines
1.6 KiB
C#
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System;
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using System.Collections.Generic;
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using System.Windows.Documents;
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using ICSharpCode.AvalonEdit.Document;
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using ICSharpCode.AvalonEdit.Editing;
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using ICSharpCode.AvalonEdit.Utils;
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namespace ICSharpCode.AvalonEdit.Snippets
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{
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/// <summary>
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/// A code snippet that can be inserted into the text editor.
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/// </summary>
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[Serializable]
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public class Snippet : SnippetContainerElement
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{
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/// <summary>
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/// Inserts the snippet into the text area.
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/// </summary>
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public void Insert(TextArea textArea)
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{
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if (textArea == null)
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throw new ArgumentNullException("textArea");
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ISegment selection = textArea.Selection.SurroundingSegment;
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int insertionPosition = textArea.Caret.Offset;
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if (selection != null) // if something is selected
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// use selection start instead of caret position,
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// because caret could be at end of selection or anywhere inside.
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// Removal of the selected text causes the caret position to be invalid.
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insertionPosition = selection.Offset + TextUtilities.GetWhitespaceAfter(textArea.Document, selection.Offset).Length;
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InsertionContext context = new InsertionContext(textArea, insertionPosition);
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using (context.Document.RunUpdate()) {
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if (selection != null)
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textArea.Document.Remove(insertionPosition, selection.EndOffset - insertionPosition);
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Insert(context);
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context.RaiseInsertionCompleted(EventArgs.Empty);
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}
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}
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}
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}
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