1 files changed, 179 insertions, 0 deletions
diff --git a/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor.Wrappers/ReadonlyDocumentSnapshot.cs b/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor.Wrappers/ReadonlyDocumentSnapshot.cs
new file mode 100644
index 0000000000..45584f18ad
--- /dev/null
+++ b/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor.Wrappers/ReadonlyDocumentSnapshot.cs
@@ -0,0 +1,179 @@
+//
+// ReadonlyDocumentSnapshot.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@xamarin.com>
+//
+// Copyright (c) 2014 Xamarin Inc. (http://xamarin.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+using System;
+using MonoDevelop.Ide.Editor;
+using Mono.TextEditor.Utils;
+
+namespace MonoDevelop.SourceEditor.Wrappers
+{
+	class ReadonlyDocumentSnapshot : IReadonlyTextDocument
+	{
+		readonly Mono.TextEditor.TextDocument snapshot;
+		readonly MonoDevelop.Core.Text.ITextSourceVersion version;
+
+		public ReadonlyDocumentSnapshot (Mono.TextEditor.TextDocument textDocument)
+		{
+			snapshot = textDocument.CreateDocumentSnapshot ();
+			version = new TextSourceVersionWrapper (textDocument.Version);
+		}
+
+		#region IReadonlyTextDocument implementation
+
+		int IReadonlyTextDocument.LocationToOffset (int line, int column)
+		{
+			return snapshot.LocationToOffset (line, column);
+		}
+
+		DocumentLocation IReadonlyTextDocument.OffsetToLocation (int offset)
+		{
+			var loc = snapshot.OffsetToLocation (offset);
+			return new MonoDevelop.Ide.Editor.DocumentLocation (loc.Line, loc.Column);
+		}
+
+		IDocumentLine IReadonlyTextDocument.GetLine (int lineNumber)
+		{
+			var line = snapshot.GetLine (lineNumber);
+			return line != null ? new DocumentLineWrapper (line) : null;
+		}
+
+		IDocumentLine IReadonlyTextDocument.GetLineByOffset (int offset)
+		{
+			var line = snapshot.GetLineByOffset (offset);
+			return line != null ? new DocumentLineWrapper (line) : null;
+		}
+
+		bool IReadonlyTextDocument.IsReadOnly {
+			get {
+				return true;
+			}
+		}
+
+		MonoDevelop.Core.FilePath IReadonlyTextDocument.FileName {
+			get {
+				return snapshot.FileName;
+			}
+		}
+
+		string IReadonlyTextDocument.MimeType {
+			get {
+				return snapshot.MimeType;
+			}
+		}
+
+		int IReadonlyTextDocument.LineCount {
+			get {
+				return snapshot.LineCount;
+			}
+		}
+
+		#endregion
+
+		#region ITextSource implementation
+
+		char MonoDevelop.Core.Text.ITextSource.GetCharAt (int offset)
+		{
+			return snapshot.GetCharAt (offset);
+		}
+
+		char MonoDevelop.Core.Text.ITextSource.this [int offset] {
+			get {
+				return snapshot.GetCharAt (offset);
+			}
+		}
+
+		string MonoDevelop.Core.Text.ITextSource.GetTextAt (int offset, int length)
+		{
+			return snapshot.GetTextAt (offset, length);
+		}
+
+		System.IO.TextReader MonoDevelop.Core.Text.ITextSource.CreateReader ()
+		{
+			return snapshot.CreateReader ();
+		}
+
+		System.IO.TextReader MonoDevelop.Core.Text.ITextSource.CreateReader (int offset, int length)
+		{
+			return snapshot.CreateReader (offset, length);
+		}
+
+		void MonoDevelop.Core.Text.ITextSource.WriteTextTo (System.IO.TextWriter writer)
+		{
+			if (writer == null)
+				throw new ArgumentNullException ("writer");
+			writer.Write (snapshot.Text);
+		}
+
+		void MonoDevelop.Core.Text.ITextSource.WriteTextTo (System.IO.TextWriter writer, int offset, int length)
+		{
+			if (writer == null)
+				throw new ArgumentNullException ("writer");
+			writer.Write (snapshot.GetTextAt (offset, length));
+		}
+
+		MonoDevelop.Core.Text.ITextSource MonoDevelop.Core.Text.ITextSource.CreateSnapshot ()
+		{
+			return this;
+		}
+
+		MonoDevelop.Core.Text.ITextSource MonoDevelop.Core.Text.ITextSource.CreateSnapshot (int offset, int length)
+		{
+			return new RopeTextSource (snapshot.CloneRope (offset, length), snapshot.Encoding, snapshot.UseBom);
+		}
+
+		MonoDevelop.Core.Text.ITextSourceVersion MonoDevelop.Core.Text.ITextSource.Version {
+			get {
+				return version;
+			}
+		}
+
+		bool MonoDevelop.Core.Text.ITextSource.UseBOM {
+			get {
+				return snapshot.UseBom;
+			}
+		}
+
+		System.Text.Encoding MonoDevelop.Core.Text.ITextSource.Encoding {
+			get {
+				return snapshot.Encoding;
+			}
+		}
+
+		int MonoDevelop.Core.Text.ITextSource.Length {
+			get {
+				return snapshot.TextLength;
+			}
+		}
+
+		string MonoDevelop.Core.Text.ITextSource.Text {
+			get {
+				return snapshot.Text;
+			}
+		}
+
+		#endregion
+	}
+}
+