New feature: Edit > Insert > Paste as comment/string.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3832 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Libraries/NRefactory/Project/Src/Ast/General/PrimitiveExpression.cs

@@ -5,6 +5,7 @@
 //     <version>$Revision$</version>
 // </file>
 
+using ICSharpCode.NRefactory.PrettyPrinter;
 using System;
 
 namespace ICSharpCode.NRefactory.Ast
@@ -18,6 +19,9 @@ namespace ICSharpCode.NRefactory.Ast
 		
 		public string StringValue {
 			get {
+				if (stringValue == null)
+					return CSharpOutputVisitor.ToCSharpString(this);
+				else
 					return stringValue;
 			}
 			set {
@@ -25,6 +29,11 @@ namespace ICSharpCode.NRefactory.Ast
 			}
 		}
 		
+		public PrimitiveExpression(object val)
+		{
+			this.Value = val;
+		}
+		
 		public PrimitiveExpression(object val, string stringValue)
 		{
 			this.Value       = val;
@@ -39,9 +48,9 @@ namespace ICSharpCode.NRefactory.Ast
 		public override string ToString()
 		{
 			return String.Format("[PrimitiveExpression: Value={1}, ValueType={2}, StringValue={0}]",
-			                     stringValue,
-			                     Value,
-			                     Value == null ? "null" : Value.GetType().FullName
+			                     this.StringValue,
+			                     this.Value,
+			                     this.Value == null ? "null" : this.Value.GetType().FullName
 			                    );
 		}
 	}

src/Libraries/NRefactory/Project/Src/AstBuilder/ExpressionBuilder.cs

@@ -83,6 +83,16 @@ namespace ICSharpCode.NRefactory.AstBuilder
 				return new PrimitiveExpression(null, "null");
 			}
 		}
+		
+		/// <summary>
+		/// Just calls the BinaryOperatorExpression constructor,
+		/// but being an extension method; this allows for a nicer
+		/// infix syntax in some cases.
+		/// </summary>
+		public static BinaryOperatorExpression Operator(this Expression left, BinaryOperatorType op, Expression right)
+		{
+			return new BinaryOperatorExpression(left, op, right);
+		}
 	}
 	#endif
 }

src/Libraries/NRefactory/Project/Src/AstBuilder/StatementBuilder.cs

@@ -11,7 +11,6 @@ using ICSharpCode.NRefactory.Ast;
 
 namespace ICSharpCode.NRefactory.AstBuilder
 {
-	#if NET35
 	/// <summary>
 	/// Extension methods for NRefactory.Ast.Expression.
 	/// </summary>
@@ -57,5 +56,4 @@ namespace ICSharpCode.NRefactory.AstBuilder
 			AddStatement(block, new AssignmentExpression(left, AssignmentOperatorType.Assign, right));
 		}
 	}
-	#endif
 }

src/Libraries/NRefactory/Project/Src/PrettyPrinter/CSharp/CSharpOutputVisitor.cs

@@ -1748,69 +1748,68 @@ namespace ICSharpCode.NRefactory.PrettyPrinter
 		
 		public override object TrackedVisitPrimitiveExpression(PrimitiveExpression primitiveExpression, object data)
 		{
-			if (primitiveExpression.Value == null) {
-				outputFormatter.PrintToken(Tokens.Null);
+			outputFormatter.PrintText(ToCSharpString(primitiveExpression));
 			return null;
 		}
 		
+		internal static string ToCSharpString(PrimitiveExpression primitiveExpression)
+		{
+			if (primitiveExpression.Value == null) {
+				return "null";
+			}
+			
 			object val = primitiveExpression.Value;
 			
 			if (val is bool) {
 				if ((bool)val) {
-					outputFormatter.PrintToken(Tokens.True);
+					return "true";
 				} else {
-					outputFormatter.PrintToken(Tokens.False);
+					return "false";
 				}
-				return null;
 			}
 			
 			if (val is string) {
-				outputFormatter.PrintText('"' + ConvertString(val.ToString()) + '"');
-				return null;
+				return "\"" + ConvertString(val.ToString()) + "\"";
 			}
 			
 			if (val is char) {
-				outputFormatter.PrintText("'" + ConvertCharLiteral((char)val) + "'");
-				return null;
+				return "'" + ConvertCharLiteral((char)val) + "'";
 			}
 			
 			if (val is decimal) {
-				outputFormatter.PrintText(((decimal)val).ToString(NumberFormatInfo.InvariantInfo) + "m");
-				return null;
+				return ((decimal)val).ToString(NumberFormatInfo.InvariantInfo) + "m";
 			}
 			
 			if (val is float) {
-				outputFormatter.PrintText(((float)val).ToString(NumberFormatInfo.InvariantInfo) + "f");
-				return null;
+				return ((float)val).ToString(NumberFormatInfo.InvariantInfo) + "f";
 			}
 			
 			if (val is double) {
 				string text = ((double)val).ToString(NumberFormatInfo.InvariantInfo);
 				if (text.IndexOf('.') < 0 && text.IndexOf('E') < 0)
-					outputFormatter.PrintText(text + ".0");
+					return text + ".0";
 				else
-					outputFormatter.PrintText(text);
-				return null;
+					return text;
 			}
 			
 			if (val is IFormattable) {
+				StringBuilder b = new StringBuilder();
 				if (primitiveExpression.LiteralFormat == LiteralFormat.HexadecimalNumber) {
-					outputFormatter.PrintText("0x");
-					outputFormatter.PrintText(((IFormattable)val).ToString("x", NumberFormatInfo.InvariantInfo));
+					b.Append("0x");
+					b.Append(((IFormattable)val).ToString("x", NumberFormatInfo.InvariantInfo));
 				} else {
-					outputFormatter.PrintText(((IFormattable)val).ToString(null, NumberFormatInfo.InvariantInfo));
+					b.Append(((IFormattable)val).ToString(null, NumberFormatInfo.InvariantInfo));
 				}
 				if (val is uint || val is ulong) {
-					outputFormatter.PrintText("u");
+					b.Append("u");
 				}
 				if (val is long || val is ulong) {
-					outputFormatter.PrintText("L");
+					b.Append("L");
 				}
+				return b.ToString();
 			} else {
-				outputFormatter.PrintText(val.ToString());
+				return val.ToString();
 			}
-			
-			return null;
 		}
 		
 		static bool IsNullLiteralExpression(Expression expr)

src/Libraries/NRefactory/Project/Src/Visitors/VBNetConstructsConvertVisitor.cs

@@ -236,9 +236,9 @@ namespace ICSharpCode.NRefactory.Visitors
 			if (methodDeclaration.TypeReference.Type != "System.Void" && methodDeclaration.Body.Children.Count > 0) {
 				if (IsAssignmentTo(methodDeclaration.Body.Children[methodDeclaration.Body.Children.Count - 1], methodDeclaration.Name))
 				{
-					ReturnStatement rs = new ReturnStatement(GetAssignmentFromStatement(methodDeclaration.Body.Children[methodDeclaration.Body.Children.Count - 1]).Right);
+					Expression returnValue = GetAssignmentFromStatement(methodDeclaration.Body.Children[methodDeclaration.Body.Children.Count - 1]).Right;
 					methodDeclaration.Body.Children.RemoveAt(methodDeclaration.Body.Children.Count - 1);
-					methodDeclaration.Body.AddChild(rs);
+					methodDeclaration.Body.Return(returnValue);
 				} else {
 					ReturnStatementForFunctionAssignment visitor = new ReturnStatementForFunctionAssignment(methodDeclaration.Name);
 					methodDeclaration.Body.AcceptVisitor(visitor, null);
@@ -247,7 +247,7 @@ namespace ICSharpCode.NRefactory.Visitors
 						init = ExpressionBuilder.CreateDefaultValueForType(methodDeclaration.TypeReference);
 						methodDeclaration.Body.Children.Insert(0, new LocalVariableDeclaration(new VariableDeclaration(FunctionReturnValueName, init, methodDeclaration.TypeReference)));
 						methodDeclaration.Body.Children[0].Parent = methodDeclaration.Body;
-						methodDeclaration.Body.AddChild(new ReturnStatement(new IdentifierExpression(FunctionReturnValueName)));
+						methodDeclaration.Body.Return(new IdentifierExpression(FunctionReturnValueName));
 					}
 				}
 			}

src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj

@@ -497,6 +497,7 @@
     <Compile Include="Src\TextEditor\Commands\GenerateCodeCommand.cs">
       <SubType>Form</SubType>
     </Compile>
+    <Compile Include="Src\TextEditor\Commands\PasteAsCommands.cs" />
     <Compile Include="Src\TextEditor\Commands\SearchCommands.cs" />
     <Compile Include="Src\TextEditor\Commands\TextAreaContextmenuCommands.cs" />
     <Compile Include="Src\TextEditor\Commands\ToolCommands.cs" />

src/Main/Base/Project/Src/TextEditor/Commands/PasteAsCommands.cs

@@ -0,0 +1,174 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <author name="Daniel Grunwald"/>
+//     <version>$Revision$</version>
+// </file>
+
+using ICSharpCode.NRefactory.Ast;
+using ICSharpCode.NRefactory.AstBuilder;
+using System;
+using System.IO;
+using System.Text;
+using ICSharpCode.Core;
+using ICSharpCode.Core.WinForms;
+using ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor;
+using ICSharpCode.SharpDevelop.Dom;
+using ICSharpCode.SharpDevelop.Dom.Refactoring;
+using ICSharpCode.SharpDevelop.Gui;
+using ICSharpCode.SharpDevelop.Project;
+using ICSharpCode.TextEditor;
+using ICSharpCode.TextEditor.Actions;
+using ICSharpCode.TextEditor.Document;
+
+namespace ICSharpCode.SharpDevelop.DefaultEditor.Commands
+{
+	public abstract class PasteAsCommand : AbstractMenuCommand
+	{
+		public override void Run()
+		{
+			string clipboardText = ClipboardWrapper.GetText();
+			if (string.IsNullOrEmpty(clipboardText))
+				return;
+			
+			IViewContent viewContent = WorkbenchSingleton.Workbench.ActiveViewContent;
+			if (viewContent == null || !(viewContent is ITextEditorControlProvider)) {
+				return;
+			}
+			
+			TextEditorControl textEditor = ((ITextEditorControlProvider)viewContent).TextEditorControl;
+			if (textEditor == null) {
+				return;
+			}
+			
+			textEditor.BeginUpdate();
+			textEditor.Document.UndoStack.StartUndoGroup();
+			try {
+				Run(textEditor, clipboardText);
+			} finally {
+				textEditor.Document.UndoStack.EndUndoGroup();
+				textEditor.EndUpdate();
+			}
+			textEditor.Refresh();
+		}
+		
+		protected abstract void Run(TextEditorControl editor, string clipboardText);
+		
+		protected string GetIndentation(ICSharpCode.TextEditor.Document.IDocument document, int line)
+		{
+			string lineText = document.GetText(document.GetLineSegment(line));
+			return lineText.Substring(0, lineText.Length - lineText.TrimStart().Length);
+		}
+	}
+	
+	/// <summary>
+	/// Pastes the clipboard text as a comment.
+	/// 
+	/// Does the following:
+	/// - Take clipboard text
+	/// - Get current indentation
+	/// - Wrap first line using 'IAmbience.WrapComment'
+	/// - If it's too long (according to the column ruler position), word-break
+	/// - Insert it
+	/// </summary>
+	public class PasteAsCommentCommand : PasteAsCommand
+	{
+		protected override void Run(TextEditorControl editor, string clipboardText)
+		{
+			TextArea textArea = editor.ActiveTextAreaControl.TextArea;
+			string indentation = GetIndentation(editor.Document, textArea.Caret.Line);
+			IAmbience ambience = AmbienceService.GetCurrentAmbience();
+			int maxLineLength = textArea.TextEditorProperties.VerticalRulerRow - VisualIndentationLength(textArea, indentation);
+			StringBuilder insertedText = new StringBuilder();
+			using (StringReader reader = new StringReader(clipboardText)) {
+				string line;
+				while ((line = reader.ReadLine()) != null) {
+					AppendTextLine(indentation, ambience, maxLineLength, insertedText, line);
+				}
+			}
+			var document = textArea.Document;
+			int insertionPos = document.GetLineSegment(textArea.Caret.Line).Offset + indentation.Length;
+			document.Insert(insertionPos, insertedText.ToString());
+		}
+		
+		void AppendTextLine(string indentation, IAmbience ambience, int maxLineLength, StringBuilder insertedText, string line)
+		{
+			const int minimumLineLength = 10;
+			string commentedLine;
+			while (true) {
+				commentedLine = ambience.WrapComment(line);
+				int commentingOverhead = commentedLine.Length - line.Length;
+				if (commentingOverhead < 0 || (maxLineLength - commentingOverhead) < minimumLineLength)
+					break;
+				if (commentedLine.Length > maxLineLength) {
+					int pos = FindWrapPositionBefore(line, maxLineLength - commentingOverhead);
+					if (pos < minimumLineLength)
+						break;
+					insertedText.AppendLine(ambience.WrapComment(line.Substring(0, pos)));
+					insertedText.Append(indentation);
+					line = line.Substring(pos + 1);
+				} else {
+					break;
+				}
+			}
+			insertedText.AppendLine(commentedLine);
+			insertedText.Append(indentation); // indentation for next line
+		}
+		
+		int FindWrapPositionBefore(string line, int pos)
+		{
+			return line.LastIndexOf(' ', pos);
+		}
+		
+		int VisualIndentationLength(TextArea textArea, string indentation)
+		{
+			int length = 0;
+			foreach (char c in indentation) {
+				if (c == '\t')
+					length += textArea.TextEditorProperties.TabIndent;
+				else
+					length += 1;
+			}
+			return length;
+		}
+	}
+	
+	/// <summary>
+	/// Pastes the clipboard text as a string.
+	/// 
+	/// Does the following:
+	/// - Take clipboard text
+	/// - Convert to string literal using CodeGenerator
+	/// - Insert it
+	/// </summary>
+	public class PasteAsStringCommand : PasteAsCommand
+	{
+		protected override void Run(TextEditorControl editor, string clipboardText)
+		{
+			CodeGenerator codeGenerator = ParserService.CurrentProjectContent.Language.CodeGenerator;
+			if (codeGenerator == null)
+				codeGenerator = LanguageProperties.CSharp.CodeGenerator;
+			Expression expression = null;
+			using (StringReader reader = new StringReader(clipboardText)) {
+				string line;
+				while ((line = reader.ReadLine()) != null) {
+					Expression newExpr = new PrimitiveExpression(line);
+					if (expression == null) {
+						expression = newExpr;
+					} else {
+						expression = expression
+							.Operator(BinaryOperatorType.Concat,
+							          ExpressionBuilder.Identifier("Environment").Member("NewLine"))
+							.Operator(BinaryOperatorType.Concat,
+							          newExpr);
+					}
+				}
+			}
+			if (expression == null)
+				return;
+			TextArea textArea = editor.ActiveTextAreaControl.TextArea;
+			string indentation = GetIndentation(editor.Document, textArea.Caret.Line);
+			textArea.InsertString(codeGenerator.GenerateCode(expression, indentation).Trim());
+		}
+	}
+}