Make editor read-only when opening a read-only file.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@5936 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/AvalonEditViewContent.cs

@@ -133,6 +133,10 @@ namespace ICSharpCode.AvalonEdit.AddIn
 				codeEditor.PrimaryTextEditor.SyntaxHighlighting =
 					HighlightingManager.Instance.GetDefinitionByExtension(Path.GetExtension(file.FileName));
 				
+				if (!file.IsUntitled) {
+					codeEditor.PrimaryTextEditor.IsReadOnly = (File.GetAttributes(file.FileName) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly;
+				}
+				
 				codeEditor.Load(stream);
 				// we set the file name after loading because this will place the fold markers etc.
 				codeEditor.FileName = FileName.Create(file.FileName);
@@ -177,6 +181,10 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			StatusBarService.SetCaretPosition(this.Column, this.Line, this.Column);
 		}
 		
+		public override bool IsReadOnly {
+			get { return codeEditor.PrimaryTextEditor.IsReadOnly; }
+		}
+		
 		#region Bookmark Handling
 		void BookmarksAttach()
 		{

src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/CodeEditor.cs

@@ -305,6 +305,8 @@ namespace ICSharpCode.AvalonEdit.AddIn
 				
 				secondaryTextEditor.SetBinding(TextEditor.DocumentProperty,
 				                               new Binding(TextEditor.DocumentProperty.Name) { Source = primaryTextEditor });
+				secondaryTextEditor.SetBinding(TextEditor.IsReadOnlyProperty,
+				                               new Binding(TextEditor.IsReadOnlyProperty.Name) { Source = primaryTextEditor });
 				secondaryTextEditor.SyntaxHighlighting = primaryTextEditor.SyntaxHighlighting;
 				
 				gridSplitter = new GridSplitter {