1 files changed, 47 insertions, 0 deletions
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Snippets/Snippet.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Snippets/Snippet.cs
new file mode 100644
index 000000000..0006261fb
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+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Snippets/Snippet.cs
@@ -0,0 +1,47 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Collections.Generic;
+using System.Windows.Documents;
+
+using Tango.Scripting.Editors.Document;
+using Tango.Scripting.Editors.Editing;
+using Tango.Scripting.Editors.Utils;
+
+namespace Tango.Scripting.Editors.Snippets
+{
+	/// <summary>
+	/// A code snippet that can be inserted into the text editor.
+	/// </summary>
+	[Serializable]
+	public class Snippet : SnippetContainerElement
+	{
+		/// <summary>
+		/// Inserts the snippet into the text area.
+		/// </summary>
+		public void Insert(TextArea textArea)
+		{
+			if (textArea == null)
+				throw new ArgumentNullException("textArea");
+			
+			ISegment selection = textArea.Selection.SurroundingSegment;
+			int insertionPosition = textArea.Caret.Offset;
+			
+			if (selection != null) // if something is selected
+				// use selection start instead of caret position,
+				// because caret could be at end of selection or anywhere inside.
+				// Removal of the selected text causes the caret position to be invalid.
+				insertionPosition = selection.Offset + TextUtilities.GetWhitespaceAfter(textArea.Document, selection.Offset).Length;
+			
+			InsertionContext context = new InsertionContext(textArea, insertionPosition);
+			
+			using (context.Document.RunUpdate()) {
+				if (selection != null)
+					textArea.Document.Remove(insertionPosition, selection.EndOffset - insertionPosition);
+				Insert(context);
+				context.RaiseInsertionCompleted(EventArgs.Empty);
+			}
+		}
+	}
+}