Exemple #1
0
        public override bool Capitalize()
        {
            int startPosition = _startPoint.CurrentPosition;

            if (IsEmpty)
            {
                int       endPosition   = _endPoint.CurrentPosition;
                TextRange currentWord   = _startPoint.GetCurrentWord();
                string    nextCharacter = _startPoint.GetNextCharacter();
                if (_startPoint.CurrentPosition == currentWord.GetStartPoint().CurrentPosition)
                {
                    nextCharacter = nextCharacter.ToUpper(CultureInfo.CurrentCulture);
                }
                else
                {
                    nextCharacter = nextCharacter.ToLower(CultureInfo.CurrentCulture);
                }
                if (!PrimitivesUtilities.Replace(TextBuffer.AdvancedTextBuffer, new Span(_startPoint.CurrentPosition, nextCharacter.Length), nextCharacter))
                {
                    return(false);
                }
                _endPoint.MoveTo(endPosition);
            }
            else
            {
                using (ITextEdit edit = TextBuffer.AdvancedTextBuffer.CreateEdit())
                {
                    TextRange currentWord = _startPoint.GetCurrentWord();

                    // If the current word extends past this range, go to the next word
                    if (currentWord.GetStartPoint().CurrentPosition < _startPoint.CurrentPosition)
                    {
                        currentWord = currentWord.GetEndPoint().GetNextWord();
                    }

                    while (currentWord.GetStartPoint().CurrentPosition < _endPoint.CurrentPosition)
                    {
                        string wordText     = currentWord.GetText();
                        string startElement = StringInfo.GetNextTextElement(wordText);
                        wordText = startElement.ToUpper(CultureInfo.CurrentCulture) + wordText.Substring(startElement.Length).ToLower(CultureInfo.CurrentCulture);
                        if (!edit.Replace(currentWord.AdvancedTextRange.Span, wordText))
                        {
                            edit.Cancel();
                            return(false);
                        }

                        currentWord = currentWord.GetEndPoint().GetNextWord();
                    }

                    edit.Apply();

                    if (edit.Canceled)
                    {
                        return(false);
                    }
                }
            }
            _startPoint.MoveTo(startPosition);
            return(true);
        }
        public override TextRange GetNextWord()
        {
            TextExtent currentWord = GetTextExtent(CurrentPosition);

            if (currentWord.Span.End < _textBuffer.AdvancedTextBuffer.CurrentSnapshot.Length)
            {
                // If the current point is at the end of the line, look for the next word on the next line
                if ((CurrentPosition == EndOfLine) && (CurrentPosition != _textBuffer.AdvancedTextBuffer.CurrentSnapshot.Length))
                {
                    TextPoint textPoint = Clone();
                    textPoint.MoveToBeginningOfNextLine();
                    textPoint.MoveTo(textPoint.StartOfLine);
                    TextExtent wordOnNextLine = GetTextExtent(textPoint.CurrentPosition);
                    if (wordOnNextLine.IsSignificant)
                    {
                        return(textPoint.GetCurrentWord());
                    }
                    else if (wordOnNextLine.Span.End >= textPoint.EndOfLine)
                    {
                        return(textPoint.GetTextRange(textPoint.EndOfLine));
                    }
                    return(textPoint.GetNextWord());
                }
                // By default, VS stops at line breaks when determing word
                // boundaries.
                else if (ShouldStopAtEndOfLine(currentWord.Span.End) || IsCurrentWordABlankLine(currentWord))
                {
                    return(GetTextRange(currentWord.Span.End));
                }

                TextExtent nextWord = GetTextExtent(currentWord.Span.End);

                if (!nextWord.IsSignificant)
                {
                    nextWord = GetTextExtent(nextWord.Span.End);
                }

                int start = nextWord.Span.Start;
                int end   = nextWord.Span.End;

                // The text structure navigator can return a word with whitespace attached at the end.
                // Handle that case here.
                start = Math.Max(start, currentWord.Span.End);

                TextPoint startPoint = Clone();
                TextPoint endPoint   = Clone();
                startPoint.MoveTo(start);
                endPoint.MoveTo(end);

                return(_bufferPrimitivesFactory.CreateTextRange(_textBuffer, startPoint, endPoint));
            }

            return(_bufferPrimitivesFactory.CreateTextRange(_textBuffer, TextBuffer.GetEndPoint(), TextBuffer.GetEndPoint()));
        }
        public override TextRange GetPreviousWord()
        {
            TextRange currentWord = GetCurrentWord();

            if (currentWord.GetStartPoint().CurrentPosition > 0)
            {
                // By default, VS stops at line breaks when determing word
                // boundaries.
                if ((currentWord.GetStartPoint().CurrentPosition == StartOfLine) &&
                    (CurrentPosition != StartOfLine))
                {
                    return(GetTextRange(currentWord.GetStartPoint()));
                }

                // If the point is at the end of a word that is not whitespace, it is possible
                // that the "current word" is also the previous word in standard VS.
                if ((currentWord.GetEndPoint().CurrentPosition == CurrentPosition) &&
                    (!currentWord.IsEmpty))
                {
                    return(currentWord);
                }

                TextPoint pointInPreviousWord = currentWord.GetStartPoint();
                pointInPreviousWord.MoveTo(pointInPreviousWord.CurrentPosition - 1);

                TextRange previousWord = pointInPreviousWord.GetCurrentWord();

                if (previousWord.GetStartPoint().CurrentPosition > 0)
                {
                    if (ShouldContinuePastPreviousWord(previousWord))
                    {
                        pointInPreviousWord.MoveTo(previousWord.GetStartPoint().CurrentPosition - 1);
                        previousWord = pointInPreviousWord.GetCurrentWord();
                    }
                }

                return(previousWord);
            }

            return(_bufferPrimitivesFactory.CreateTextRange(_textBuffer, TextBuffer.GetStartPoint(), TextBuffer.GetStartPoint()));
        }
 public override TextRange GetCurrentWord()
 {
     return(_bufferPoint.GetCurrentWord());
 }