CodeEditor is now calling IFormattingStrategy.FormatLine.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4138 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/CSharpBinding/Project/Src/FormattingStrategy/CSharpFormattingStrategy.cs

@@ -53,7 +53,6 @@ namespace CSharpBinding.FormattingStrategy
 		}
 		#endregion
 		
-		/*
 		#region Private functions
 		bool NeedCurlyBracket(string text)
 		{
@@ -130,7 +129,7 @@ namespace CSharpBinding.FormattingStrategy
 		}
 		
 		
-		bool IsInsideStringOrComment(TextArea textArea, LineSegment curLine, int cursorOffset)
+		bool IsInsideStringOrComment(ITextEditor textArea, IDocumentLine curLine, int cursorOffset)
 		{
 			// scan cur line if it is inside a string or single line comment (//)
 			bool insideString  = false;
@@ -164,7 +163,7 @@ namespace CSharpBinding.FormattingStrategy
 			return insideString;
 		}
 		
-		bool IsInsideDocumentationComment(TextArea textArea, LineSegment curLine, int cursorOffset)
+		bool IsInsideDocumentationComment(ITextEditor textArea, IDocumentLine curLine, int cursorOffset)
 		{
 			for (int i = curLine.Offset; i < cursorOffset; ++i) {
 				char ch = textArea.Document.GetCharAt(i);
@@ -246,8 +245,8 @@ namespace CSharpBinding.FormattingStrategy
 		{
 			int regions = 0;
 			int endregions = 0;
-			foreach (LineSegment line in document.LineSegmentCollection) {
-				string text = document.GetText(line).Trim();
+			for (int i = 1; i <= document.TotalNumberOfLines; i++) {
+				string text = document.GetLine(i).Text.Trim();
 				if (text.StartsWith("#region")) {
 					++regions;
 				} else if (text.StartsWith("#endregion")) {
@@ -256,26 +255,27 @@ namespace CSharpBinding.FormattingStrategy
 			}
 			return regions > endregions;
 		}
-		public override void FormatLine(TextArea textArea, int lineNr, int cursorOffset, char ch) // used for comment tag formater/inserter
+		
+		public override void FormatLine(ITextEditor textArea, char ch) // used for comment tag formater/inserter
 		{
-			textArea.Document.UndoStack.StartUndoGroup();
-			FormatLineInternal(textArea, lineNr, cursorOffset, ch);
-			textArea.Document.UndoStack.EndUndoGroup();
+			using (textArea.Document.OpenUndoGroup()) {
+				FormatLineInternal(textArea, textArea.Caret.Line, textArea.Caret.Offset, ch);
+			}
 		}
 		
-		void FormatLineInternal(TextArea textArea, int lineNr, int cursorOffset, char ch)
+		void FormatLineInternal(ITextEditor textArea, int lineNr, int cursorOffset, char ch)
 		{
-			LineSegment curLine   = textArea.Document.GetLineSegment(lineNr);
-			LineSegment lineAbove = lineNr > 0 ? textArea.Document.GetLineSegment(lineNr - 1) : null;
-			string terminator = textArea.TextEditorProperties.LineTerminator;
+			IDocumentLine curLine   = textArea.Document.GetLine(lineNr);
+			IDocumentLine lineAbove = lineNr > 1 ? textArea.Document.GetLine(lineNr - 1) : null;
+			string terminator = DocumentUtilitites.GetLineTerminator(textArea.Document, lineNr);
 			
+			string curLineText;
 			//// local string for curLine segment
-			string curLineText="";
 			if (ch == '/') {
-				curLineText   = textArea.Document.GetText(curLine);
-				string lineAboveText = lineAbove == null ? "" : textArea.Document.GetText(lineAbove);
+				curLineText = curLine.Text;
+				string lineAboveText = lineAbove == null ? "" : lineAbove.Text;
 				if (curLineText != null && curLineText.EndsWith("///") && (lineAboveText == null || !lineAboveText.Trim().StartsWith("///"))) {
-					string indentation = base.GetIndentation(textArea, lineNr);
+					string indentation = DocumentUtilitites.GetIndentation(textArea.Document, curLine.Offset);
 					object member = GetMemberAfter(textArea, lineNr);
 					if (member != null) {
 						StringBuilder sb = new StringBuilder();
@@ -306,8 +306,7 @@ namespace CSharpBinding.FormattingStrategy
 						}
 						textArea.Document.Insert(cursorOffset, sb.ToString());
 						
-						textArea.Refresh();
-						textArea.Caret.Position = textArea.Document.OffsetToPosition(cursorOffset + indentation.Length + "/// ".Length + " <summary>".Length + terminator.Length);
+						textArea.Caret.Offset = cursorOffset + indentation.Length + "/// ".Length + " <summary>".Length + terminator.Length;
 					}
 				}
 				return;
@@ -321,7 +320,7 @@ namespace CSharpBinding.FormattingStrategy
 			switch (ch) {
 				case '>':
 					if (IsInsideDocumentationComment(textArea, curLine, cursorOffset)) {
-						curLineText  = textArea.Document.GetText(curLine);
+						curLineText = curLine.Text;
 						int column = textArea.Caret.Offset - curLine.Offset;
 						int index = Math.Min(column - 1, curLineText.Length - 1);
 						
@@ -351,29 +350,24 @@ namespace CSharpBinding.FormattingStrategy
 				case ']':
 				case '}':
 				case '{':
-					if (textArea.Document.TextEditorProperties.IndentStyle == IndentStyle.Smart) {
-						textArea.Document.FormattingStrategy.IndentLine(textArea, lineNr);
-					}
+					//if (textArea.Document.TextEditorProperties.IndentStyle == IndentStyle.Smart) {
+					IndentLine(textArea, curLine);
+					//}
 					break;
 				case '\n':
-					string  lineAboveText = lineAbove == null ? "" : textArea.Document.GetText(lineAbove);
+					string lineAboveText = lineAbove == null ? "" : lineAbove.Text;
 					//// curLine might have some text which should be added to indentation
-					curLineText = "";
-					if (curLine.Length > 0) {
-						curLineText = textArea.Document.GetText(curLine);
-					}
-					
-					LineSegment nextLine      = lineNr + 1 < textArea.Document.TotalNumberOfLines ? textArea.Document.GetLineSegment(lineNr + 1) : null;
-					string      nextLineText  = lineNr + 1 < textArea.Document.TotalNumberOfLines ? textArea.Document.GetText(nextLine) : "";
+					curLineText = curLine.Text;
 					
-					int addCursorOffset = 0;
-					
-					if (lineAboveText.Trim().StartsWith("#region") && NeedEndregion(textArea.Document)) {
-						textArea.Document.Insert(curLine.Offset, "#endregion");
-						textArea.Caret.Column = IndentLine(textArea, lineNr);
+					if (lineAbove != null && lineAbove.Text.Trim().StartsWith("#region")
+					    && NeedEndregion(textArea.Document))
+					{
+						textArea.Document.Insert(cursorOffset, "#endregion");
 						return;
 					}
 					
+					/*
+					int addCursorOffset = 0;
 					if (lineAbove.HighlightSpanStack != null && !lineAbove.HighlightSpanStack.IsEmpty) {
 						if (!lineAbove.HighlightSpanStack.Peek().StopEOL) {	// case for /* style comments
 							int index = lineAboveText.IndexOf("/*");
@@ -421,18 +415,18 @@ namespace CSharpBinding.FormattingStrategy
 								addCursorOffset = 1;
 							}
 						}
-					}
-					int result = IndentLine(textArea, lineNr) + addCursorOffset;
-					if (textArea.TextEditorProperties.AutoInsertCurlyBracket) {
-						string oldLineText = TextUtilities.GetLineAsString(textArea.Document, lineNr - 1);
+					}*/
+					if (textArea.Options.AutoInsertBlockEnd && lineAbove != null) {
+						string oldLineText = lineAbove.Text;
 						if (oldLineText.EndsWith("{")) {
-							if (NeedCurlyBracket(textArea.Document.TextContent)) {
-								textArea.Document.Insert(curLine.Offset + curLine.Length, terminator + "}");
-								IndentLine(textArea, lineNr + 1);
+							if (NeedCurlyBracket(textArea.Document.Text)) {
+								int insertionPoint = curLine.Offset + curLine.Length;
+								textArea.Document.Insert(insertionPoint, terminator + "}");
+								IndentLine(textArea, textArea.Document.GetLine(lineNr + 1));
+								textArea.Caret.Offset = insertionPoint;
 							}
 						}
 					}
-					textArea.Caret.Column = result;
 					return;
 			}
 		}
@@ -549,6 +543,7 @@ namespace CSharpBinding.FormattingStrategy
 		}
 		#endregion
 		
+		/*
 		#region SearchBracketBackward
 		public override int SearchBracketBackward(IDocument document, int offset, char openBracket, char closingBracket)
 		{

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

@@ -146,7 +146,8 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			textEditor.Background = Brushes.White;
 			textEditor.FontFamily = new FontFamily("Consolas");
 			textEditor.FontSize = 13;
-			textEditor.TextArea.TextEntered += TextArea_TextInput;
+			textEditor.TextArea.TextEntering += TextArea_TextEntering;
+			textEditor.TextArea.TextEntered += TextArea_TextEntered;
 			textEditor.MouseHover += textEditor_MouseHover;
 			textEditor.MouseHoverStopped += textEditor_MouseHoverStopped;
 			textEditor.TextArea.Caret.PositionChanged += caret_PositionChanged;
@@ -171,15 +172,13 @@ namespace ICSharpCode.AvalonEdit.AddIn
 		
 		void textEditor_TextArea_TextView_ContextMenuOpening(object sender, ContextMenuEventArgs e)
 		{
-			ITextEditorComponent component = (ITextEditorComponent)sender;
-			ITextEditor adapter = (ITextEditor)component.GetService(typeof(ITextEditor));
+			ITextEditor adapter = GetAdapterFromSender(sender);
 			MenuService.CreateContextMenu(adapter, contextMenuPath).IsOpen = true;
 		}
 		
 		void textEditor_TextArea_TextView_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
 		{
-			ITextEditorComponent component = (ITextEditorComponent)sender;
-			TextEditor textEditor = (TextEditor)component.GetService(typeof(TextEditor));
+			TextEditor textEditor = GetTextEditorFromSender(sender);
 			var position = textEditor.GetPositionFromPoint(e.GetPosition(textEditor));
 			if (position.HasValue) {
 				textEditor.TextArea.Caret.Position = position.Value;
@@ -305,15 +304,16 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			}
 		}
 		
-		void TextArea_TextInput(object sender, TextCompositionEventArgs e)
+		void TextArea_TextEntering(object sender, TextCompositionEventArgs e)
 		{
 			// don't start new code completion if there is still a completion window open
 			if (completionWindow != null)
 				return;
 			
-			TextArea textArea = (TextArea)sender;
-			ITextEditor adapter = (ITextEditor)textArea.GetService(typeof(ITextEditor));
-			Debug.Assert(adapter != null);
+			if (e.Handled)
+				return;
+			
+			ITextEditor adapter = GetAdapterFromSender(sender);
 			
 			foreach (char c in e.Text) {
 				foreach (ICodeCompletionBinding cc in CodeCompletionBindings) {
@@ -343,18 +343,35 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			}
 		}
 		
-		TextEditor GetTextEditorFromRoutedCommand(object sender)
+		void TextArea_TextEntered(object sender, TextCompositionEventArgs e)
+		{
+			if (e.Text.Length > 0 && !e.Handled) {
+				formattingStrategy.FormatLine(GetAdapterFromSender(sender), e.Text[0]);
+			}
+		}
+		
+		ITextEditor GetAdapterFromSender(object sender)
+		{
+			ITextEditorComponent textArea = (ITextEditorComponent)sender;
+			ITextEditor textEditor = (ITextEditor)textArea.GetService(typeof(ITextEditor));
+			if (textEditor == null)
+				throw new InvalidOperationException("could not find TextEditor service");
+			return textEditor;
+		}
+		
+		TextEditor GetTextEditorFromSender(object sender)
 		{
-			TextArea textArea = (TextArea)sender;
+			ITextEditorComponent textArea = (ITextEditorComponent)sender;
 			TextEditor textEditor = (TextEditor)textArea.GetService(typeof(TextEditor));
-			Debug.Assert(textEditor != null);
+			if (textEditor == null)
+				throw new InvalidOperationException("could not find TextEditor service");
 			return textEditor;
 		}
 		
 		void OnCodeCompletion(object sender, ExecutedRoutedEventArgs e)
 		{
 			CloseExistingCompletionWindows();
-			TextEditor textEditor = GetTextEditorFromRoutedCommand(sender);
+			TextEditor textEditor = GetTextEditorFromSender(sender);
 			foreach (ICodeCompletionBinding cc in CodeCompletionBindings) {
 				if (cc.CtrlSpace(GetAdapter(textEditor))) {
 					e.Handled = true;
@@ -365,7 +382,7 @@ namespace ICSharpCode.AvalonEdit.AddIn
 		
 		void OnDeleteLine(object sender, ExecutedRoutedEventArgs e)
 		{
-			TextEditor textEditor = GetTextEditorFromRoutedCommand(sender);
+			TextEditor textEditor = GetTextEditorFromSender(sender);
 			e.Handled = true;
 			using (textEditor.Document.RunUpdate()) {
 				DocumentLine currentLine = textEditor.Document.GetLineByNumber(textEditor.TextArea.Caret.Line);

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Gui/EditingCommandHandler.cs

@@ -73,17 +73,9 @@ namespace ICSharpCode.AvalonEdit.Gui
 		static void OnEnter(object target, ExecutedRoutedEventArgs args)
 		{
 			TextArea textArea = GetTextArea(target);
-			if (textArea != null && textArea.Document != null) {
-				string newLine = NewLineFinder.GetNewLineFromDocument(textArea.Document, textArea.Caret.Line);
-				using (textArea.Document.RunUpdate()) {
-					textArea.ReplaceSelectionWithText(newLine);
-					if (textArea.IndentationStrategy != null) {
-						DocumentLine line = textArea.Document.GetLineByNumber(textArea.Caret.Line);
-						textArea.IndentationStrategy.IndentLine(line);
-					}
-				}
-				textArea.Caret.BringCaretToView();
-				args.Handled = true;
+			if (textArea != null) {
+				TextComposition textComposition = new TextComposition(InputManager.Current, textArea, "\n");
+				textArea.PerformTextInput(new TextCompositionEventArgs(Keyboard.PrimaryDevice, textComposition));
 			}
 		}
 		#endregion

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Gui/TextArea.cs

@@ -597,8 +597,25 @@ namespace ICSharpCode.AvalonEdit
 		/// This is like the <see cref="UIElement.TextInput"/> event,
 		/// but occurs immediately before the TextArea handles the TextInput event.
 		/// </summary>
+		public event TextCompositionEventHandler TextEntering;
+		
+		/// <summary>
+		/// Occurs when the TextArea receives text input.
+		/// This is like the <see cref="UIElement.TextInput"/> event,
+		/// but occurs immediately after the TextArea handles the TextInput event.
+		/// </summary>
 		public event TextCompositionEventHandler TextEntered;
 		
+		/// <summary>
+		/// Raises the TextEntering event.
+		/// </summary>
+		protected virtual void OnTextEntering(TextCompositionEventArgs e)
+		{
+			if (TextEntering != null) {
+				TextEntering(this, e);
+			}
+		}
+		
 		/// <summary>
 		/// Raises the TextEntered event.
 		/// </summary>
@@ -613,22 +630,49 @@ namespace ICSharpCode.AvalonEdit
 		protected override void OnTextInput(TextCompositionEventArgs e)
 		{
 			base.OnTextInput(e);
-			if (!e.Handled) {
+			if (!e.Handled && this.Document != null) {
 				if (e.Text == "\x1b") {
 					// ASCII 0x1b = ESC.
 					// WPF produces a TextInput event with that old ASCII control char
 					// when Escape is pressed. We'll just ignore it.
 					return;
 				}
-				TextDocument document = this.Document;
-				if (document != null) {
-					OnTextEntered(e);
+				PerformTextInput(e);
+				e.Handled = true;
+			}
+		}
+		
+		/// <summary>
+		/// Runs text input.
+		/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
+		/// and then raises the <see cref="TextEntered"/> event.
+		/// </summary>
+		public void PerformTextInput(TextCompositionEventArgs e)
+		{
+			if (e == null)
+				throw new ArgumentNullException("e");
+			if (this.Document == null)
+				throw ThrowUtil.NoDocumentAssigned();
+			OnTextEntering(e);
 			if (!e.Handled) {
+				if (e.Text == "\n" || e.Text == "\r\n")
+					ReplaceSelectionWithNewLine();
+				else
 					ReplaceSelectionWithText(e.Text);
+				OnTextEntered(e);
 				caret.BringCaretToView();
-						e.Handled = true;
 			}
 		}
+		
+		void ReplaceSelectionWithNewLine()
+		{
+			string newLine = NewLineFinder.GetNewLineFromDocument(this.Document, this.Caret.Line);
+			using (this.Document.RunUpdate()) {
+				ReplaceSelectionWithText(newLine);
+				if (this.IndentationStrategy != null) {
+					DocumentLine line = this.Document.GetLineByNumber(this.Caret.Line);
+					this.IndentationStrategy.IndentLine(line);
+				}
 			}
 		}
 		

src/Main/Base/Project/Src/Editor/AvalonEdit/AvalonEditDocumentAdapter.cs

@@ -55,6 +55,10 @@ namespace ICSharpCode.SharpDevelop.Editor
 				get { return line.TotalLength; }
 			}
 			
+			public int DelimiterLength {
+				get { return line.DelimiterLength; }
+			}
+			
 			public int LineNumber {
 				get { return line.LineNumber; }
 			}

src/Main/Base/Project/Src/Editor/AvalonEdit/AvalonEditTextEditorAdapter.cs

@@ -113,6 +113,12 @@ namespace ICSharpCode.SharpDevelop.Editor
 					return avalonEditOptions.IndentationString;
 				}
 			}
+			
+			public bool AutoInsertBlockEnd {
+				get {
+					return true;
+				}
+			}
 		}
 		
 		public virtual string FileName {

src/Main/Base/Project/Src/Editor/DocumentUtilitites.cs

@@ -109,6 +109,22 @@ namespace ICSharpCode.SharpDevelop.Editor
 			return document.GetText(segment.Offset, segment.Length);
 		}
 		
+		/// <summary>
+		/// Gets the line terminator for the document around the specified line number.
+		/// </summary>
+		public static string GetLineTerminator(IDocument document, int lineNumber)
+		{
+			IDocumentLine line = document.GetLine(lineNumber);
+			if (line.DelimiterLength == 0) {
+				// at the end of the document, there's no line delimiter, so use the delimiter
+				// from the previous line
+				if (lineNumber == 1)
+					return Environment.NewLine;
+				line = document.GetLine(lineNumber - 1);
+			}
+			return document.GetText(line.Offset + line.Length, line.DelimiterLength);
+		}
+		
 		#region ITextSource implementation
 		public static ICSharpCode.AvalonEdit.Document.ITextSource GetTextSource(IDocument document)
 		{

src/Main/Base/Project/Src/Editor/IFormattingStrategy.cs

@@ -10,7 +10,7 @@ using System;
 namespace ICSharpCode.SharpDevelop.Editor
 {
 	/// <summary>
-	/// Indentation strategy.
+	/// Indentation and formatting strategy.
 	/// </summary>
 	public interface IFormattingStrategy
 	{

src/Main/Base/Project/Src/Editor/ITextEditor.cs

@@ -88,6 +88,11 @@ namespace ICSharpCode.SharpDevelop.Editor
 		/// Gets the text used for one indentation level.
 		/// </summary>
 		string IndentationString { get; }
+		
+		/// <summary>
+		/// Gets whether a '}' should automatically be inserted when a block is opened.
+		/// </summary>
+		bool AutoInsertBlockEnd { get; }
 	}
 	
 	public interface ITextEditorCaret

src/Main/Base/Project/Src/Services/RefactoringService/TextEditorDocument.cs

@@ -54,6 +54,10 @@ namespace ICSharpCode.SharpDevelop.Refactoring
 				get { return line.TotalLength; }
 			}
 			
+			public int DelimiterLength {
+				get { return line.DelimiterLength; }
+			}
+			
 			public int LineNumber {
 				get { return line.LineNumber + 1; }
 			}

src/Main/Base/Project/Src/TextEditor/Gui/TextEditorAdapter.cs

@@ -90,6 +90,12 @@ namespace ICSharpCode.SharpDevelop
 					return properties.ConvertTabsToSpaces ? new string(' ', properties.IndentationSize) : "\t";
 				}
 			}
+			
+			public bool AutoInsertBlockEnd {
+				get {
+					return true;
+				}
+			}
 		}
 		
 		static ICSharpCode.NRefactory.Location ToLocation(TextLocation position)

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/Refactoring/IDocument.cs

@@ -119,6 +119,12 @@ namespace ICSharpCode.SharpDevelop.Editor
 		/// </summary>
 		int TotalLength { get; }
 		
+		/// <summary>
+		/// Gets the length of the line terminator.
+		/// Returns 1 or 2; or 0 at the end of the document.
+		/// </summary>
+		int DelimiterLength { get; }
+		
 		/// <summary>
 		/// Gets the number of this line.
 		/// The first line has the number 1.