C# Document.LocationToOffset方法代码示例

		static MonoDevelop.Ide.FindInFiles.SearchResult GetJumpTypePartSearchResult (IType part)
		{
			var provider = new MonoDevelop.Ide.FindInFiles.FileProvider (part.CompilationUnit.FileName);
			var doc = new Mono.TextEditor.Document ();
			doc.Text = provider.ReadString ();
			int position = doc.LocationToOffset (part.Location.Line, part.Location.Column);
			while (position + part.Name.Length < doc.Length) {
				if (doc.GetTextAt (position, part.Name.Length) == part.Name)
					break;
				position++;
			}
			return new MonoDevelop.Ide.FindInFiles.SearchResult (provider, position, part.Name.Length);
		}

		static InsertionPoint GetInsertionPosition (Document doc, int line, int column)
		{
			int bodyEndOffset = doc.LocationToOffset (line, column) + 1;
			LineSegment curLine = doc.GetLine (line);
			if (curLine != null) {
				if (bodyEndOffset < curLine.Offset + curLine.EditableLength) {
					System.Console.WriteLine (1);
					// case1: positition is somewhere inside the start line
					return new InsertionPoint (new DocumentLocation (line, column + 1), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
				}
			}
			
			// -> if position is at line end check next line
			LineSegment nextLine = doc.GetLine (line + 1);
			if (nextLine == null) // check for 1 line case.
				return new InsertionPoint (new DocumentLocation (line, column + 1), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
			
			for (int i = nextLine.Offset; i < nextLine.EndOffset; i++) {
				char ch = doc.GetCharAt (i);
				if (!char.IsWhiteSpace (ch)) {
					// case2: next line contains non ws chars.
					System.Console.WriteLine (2);
					return new InsertionPoint (new DocumentLocation (line + 1, 1), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
				}
			}
			// case3: whitespace line
			return new InsertionPoint (new DocumentLocation (line + 1, 1), NewLineInsertion.BlankLine, NewLineInsertion.None);
		}

		static InsertionPoint GetInsertionPosition (Document doc, int line, int column)
		{
			int bodyEndOffset = doc.LocationToOffset (line, column) + 1;
			
			LineSegment curLine = doc.GetLine (line);
			if (curLine != null) {
				if (bodyEndOffset < curLine.Offset + curLine.EditableLength)
					return new InsertionPoint (new DocumentLocation (line, column + 1), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
			}
			
			LineSegment nextLine = doc.GetLine (line + 1);
			
			int endOffset = nextLine != null ? nextLine.Offset : doc.Length;
			for (int i = bodyEndOffset; i < endOffset; i++) {
				char ch = doc.GetCharAt (i);
				if (!char.IsWhiteSpace (ch))
					return new InsertionPoint (doc.OffsetToLocation (i), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
			}
			
			if (nextLine == null)
				return new InsertionPoint (doc.OffsetToLocation (bodyEndOffset - 1), NewLineInsertion.BlankLine, NewLineInsertion.BlankLine);
			int oldLine = line;
			while (line < doc.LineCount && doc.GetLineIndent (line + 1).Length == doc.GetLine (line + 1).EditableLength)
				line++;
			NewLineInsertion insertBefore = NewLineInsertion.None;
			NewLineInsertion insertAfter = NewLineInsertion.None;
			int delta = line - oldLine;
			int lineNumber = line + 1;
			
			if (delta == 0) {
				insertBefore = NewLineInsertion.Eol;
				insertAfter = NewLineInsertion.BlankLine;
			} else if (delta == 1) {
				insertAfter = NewLineInsertion.BlankLine;
			} else if (delta == 2) {
				lineNumber--;
				insertAfter = NewLineInsertion.BlankLine;
			} else if (delta >= 3) {
				lineNumber -= 2;
				insertAfter = NewLineInsertion.None;
			}
			
			return new InsertionPoint (new DocumentLocation (lineNumber, doc.GetLineIndent (lineNumber).Length + 1), insertBefore, insertAfter);
		}

		public static List<InsertionPoint> GetInsertionPoints (Document doc, IType type)
		{
			if (doc == null)
				throw new ArgumentNullException ("doc");
			if (type == null)
				throw new ArgumentNullException ("type");
			List<InsertionPoint> result = new List<InsertionPoint> ();
			
			int offset = doc.LocationToOffset (type.BodyRegion.Start.Line, type.BodyRegion.Start.Column);
			if (offset < 0)
				return result;
			while (offset < doc.Length && doc.GetCharAt (offset) != '{' && char.IsWhiteSpace (doc.GetCharAt (offset)))
				offset++;
			var realStartLocation = doc.OffsetToLocation (offset);
			result.Add (GetInsertionPosition (doc, realStartLocation.Line, realStartLocation.Column));
			result[0].LineBefore = NewLineInsertion.None;
			foreach (IMember member in type.Members) {
				DomLocation domLocation = member.BodyRegion.End;
				if (domLocation.Line <= 0) {
					LineSegment lineSegment = doc.GetLine (member.Location.Line);
					if (lineSegment == null)
						continue;
					domLocation = new DomLocation (member.Location.Line, lineSegment.EditableLength + 1);
				}
				result.Add (GetInsertionPosition (doc, domLocation.Line, domLocation.Column));
			}
			result[result.Count - 1].LineAfter = NewLineInsertion.None;
			CheckStartPoint (doc, result[0], result.Count == 1);
			if (result.Count > 1)
				CheckEndPoint (doc, result[result.Count - 1], result.Count == 1);
			return result;
		}

		static InsertionPoint GetInsertionPosition (Document doc, int line, int column)
		{
			LineSegment nextLine = doc.GetLine (line + 1);
			int bodyEndOffset = doc.LocationToOffset (line, column) + 1;
			int endOffset = nextLine != null ? nextLine.Offset : doc.Length;
			for (int i = bodyEndOffset; i < endOffset; i++) {
				char ch = doc.GetCharAt (i);
				if (!char.IsWhiteSpace (ch))
					return new InsertionPoint (doc.OffsetToLocation (i), true, true);
			}
			
			if (nextLine == null)
				return new InsertionPoint (doc.OffsetToLocation (bodyEndOffset - 1), true, true);
			int oldLine = line;
			bool curLineEmpty = false;
			if (doc.GetLineIndent (nextLine).Length == nextLine.EditableLength) {
				curLineEmpty = true;
				while (line + 2 < doc.LineCount && doc.GetLineIndent (line + 2).Length == doc.GetLine (line + 2).EditableLength)
					line++;
			}
			bool insertBefore = !curLineEmpty && line - oldLine <= 1;
			bool insertAfter  = line - oldLine == 0;
//			if (curLineEmpty)
//				line++;
			int lineNumber = line + 1;
			return new InsertionPoint (new DocumentLocation (lineNumber, doc.GetLineIndent (lineNumber).Length), insertBefore, insertAfter);
		}