public void Execute(bool up)
{
IWpfTextView textView = GetTextView();
ITextSnapshot snapshot = textView.TextSnapshot;
if (snapshot != snapshot.TextBuffer.CurrentSnapshot)
{
return;
}
string sourceText = "";
int selectionLastLineNumber = 0;
int selectionFirstLineNumber = 0;
int selectionStartLineOffset = 0;
int selectionLength = 0;
int caretLineOffset = 0;
bool noInitialSelection = false;
bool caretAtTheEndOfSelection = true;
int caretPos = textView.GetCaretPosition();
caretLineOffset = caretPos - textView.GetCaretLine().Start.Position;
if (!textView.Selection.IsEmpty)
{
caretAtTheEndOfSelection = (textView.Selection.Start.Position != caretPos);
if (textView.Selection.Start.Position < textView.Selection.End.Position)
{
selectionStartLineOffset = textView.Selection.Start.Position - textView.Selection.Start.Position.GetContainingLine().Start.Position;
selectionLength = textView.Selection.End.Position - textView.Selection.Start.Position;
}
else
{
selectionStartLineOffset = textView.Selection.End.Position - textView.Selection.Start.Position.GetContainingLine().End.Position;
selectionLength = textView.Selection.Start.Position - textView.Selection.End.Position;
}
selectionLastLineNumber = textView.Selection.End.Position.GetContainingLine().LineNumber;
selectionFirstLineNumber = textView.Selection.Start.Position.GetContainingLine().LineNumber;
var builder = new StringBuilder();
for (int i = selectionFirstLineNumber; i <= selectionLastLineNumber; i++)
{
builder.AppendLine(snapshot.GetLineFromLineNumber(i).GetText());
}
sourceText = builder.ToString();
textView.Selection.Clear();
}
else
{
noInitialSelection = true;
selectionLength =
selectionStartLineOffset = 0;
selectionFirstLineNumber =
selectionLastLineNumber = textView.GetCaretLine().End.GetContainingLine().LineNumber;
sourceText = textView.Caret.ContainingTextViewLine.ExtentIncludingLineBreak.GetText();
}
int insertionPosition;
//int finalCaretPosition;
using (ITextEdit edit = textView.TextBuffer.CreateEdit())
{
int lineCount = selectionLastLineNumber - selectionFirstLineNumber + 1;
try
{
for (int i = selectionLastLineNumber; i >= selectionFirstLineNumber; i--)
{
var line = edit.Snapshot.GetLineFromLineNumber(i);
edit.Delete(new Span(line.Start.Position, line.LengthIncludingLineBreak));
}
}
catch
{
}
if (up)
{
if (selectionFirstLineNumber == 0)
{
insertionPosition = 0;
}
else
{
insertionPosition = edit.Snapshot.GetLineFromLineNumber(selectionFirstLineNumber - 1).Start.Position;
}
}
else
{
insertionPosition = edit.Snapshot.GetLineFromLineNumber(selectionFirstLineNumber + lineCount).ExtentIncludingLineBreak.End.Position;
}
edit.Insert(insertionPosition, sourceText);
edit.Apply();
}
int selectionStartUp = (noInitialSelection ? insertionPosition + caretLineOffset : insertionPosition + selectionStartLineOffset);
int selectionStartDown = (noInitialSelection ? insertionPosition - sourceText.Length + caretLineOffset : (insertionPosition - sourceText.Length) + selectionStartLineOffset);
int selectionStart = (up ? selectionStartUp : selectionStartDown);
textView.SetSelection(selectionStart, selectionLength);
if (caretAtTheEndOfSelection)
{
textView.MoveCaretTo(selectionStart + selectionLength);
}
else
{
textView.MoveCaretTo(selectionStart);
}
int caretLineNumber = textView.GetLineFromPosition(textView.GetCaretPosition()).LineNumber;
if (up)
{
if ((caretLineNumber - textView.VisualSnapshot.Lines.First().LineNumber) < 5)
{
textView.ViewScroller.ScrollViewportVerticallyByLine(ScrollDirection.Up);
}
}
else
{
if ((textView.VisualSnapshot.Lines.Last().LineNumber - caretLineNumber) < 5)
{
textView.ViewScroller.ScrollViewportVerticallyByLine(ScrollDirection.Down);
}
}
if (textView.IsCaretClosToHorizontalEdge(up))
{
textView.ViewScroller.ScrollViewportVerticallyByLines(up ? ScrollDirection.Up : ScrollDirection.Down, 1);
}
}
public void Execute()
{
IWpfTextView textView = txtMgr.GetTextView();
ITextSnapshot snapshot = textView.TextSnapshot;
if (snapshot != snapshot.TextBuffer.CurrentSnapshot)
{
return;
}
Extensions.RefreshCommentForCurrentDocument();
if (!textView.Selection.IsEmpty)
{
int areaStart = textView.Selection.Start.Position.GetContainingLine().Start.Position;
int areaEnd = textView.Selection.End.Position.GetContainingLine().End.Position;
if (textView.Selection.Start > textView.Selection.End)
{
Extensions.Swap(ref areaStart, ref areaEnd);
}
string text = textView.TextBuffer.CurrentSnapshot.GetText(areaStart, areaEnd - areaStart);
var textLines = text.Replace(Environment.NewLine, "\n").Split('\n')
.Select(x => new
{
Text = x,
IsCommented = x.TrimStart().StartsWith(Extensions.commentPreffix),
TextStart = x.IndexOfNonWhitespace(),
IsEmpty = (x == "")
});
bool doComment = textLines.Any(x => !x.IsCommented && !x.IsEmpty);
int indent = textLines.Where(x => !x.IsEmpty).Min(x => x.TextStart);
string[] replacementLines = textLines.Select(x =>
{
if (x.IsEmpty)
{
return(x.Text);
}
else
{
return(x.Text.CommentText(indent, doComment));
}
}).ToArray();
string replacementText = string.Join(Environment.NewLine, replacementLines);
using (ITextEdit edit = textView.TextBuffer.CreateEdit())
{
edit.Replace(new Span(areaStart, areaEnd - areaStart), replacementText);
edit.Apply();
}
textView.Selection.Clear();
textView.SetSelection(areaStart, replacementText.Length);
}
else
{
int lineNum = textView.Caret.ContainingTextViewLine.End.GetContainingLine().LineNumber;
var line = textView.GetLine(lineNum);
int caretLineOffset = textView.GetCaretPosition() - textView.Caret.ContainingTextViewLine.Start.Position;
using (ITextEdit edit = textView.TextBuffer.CreateEdit())
{
string lineText = line.GetText();
bool doComment = !lineText.IsCommented();
int indent = lineText.IndexOfNonWhitespace();
if (caretLineOffset > indent)
{
if (doComment)
{
caretLineOffset += Extensions.commentPreffix.Length;
}
else
{
caretLineOffset -= Extensions.commentPreffix.Length;
}
}
string text = line.GetTextIncludingLineBreak().CommentText(indent, doComment);
edit.Replace(new Span(line.Start.Position, line.LengthIncludingLineBreak), text);
edit.Apply();
}
textView.MoveCaretTo(line.Start.Position + caretLineOffset);
}
}
public void Execute(bool commentOriginal = false)
{
IWpfTextView textView = txtMgr.GetTextView();
ITextSnapshot snapshot = textView.TextSnapshot;
if (snapshot != snapshot.TextBuffer.CurrentSnapshot)
{
return;
}
Extensions.RefreshCommentForCurrentDocument();
if (!textView.Selection.IsEmpty)
{
var selectionStart = textView.Selection.Start;
var selectionEnd = textView.Selection.End;
if (textView.Selection.Start > textView.Selection.End)
{
Extensions.Swap(ref selectionStart, ref selectionEnd);
}
var selectionStartLine = selectionStart.Position.GetContainingLine();
var selectionEndLine = selectionEnd.Position.GetContainingLine();
var blockTextStart = selectionStartLine.Start.Position;
string blockText = textView.TextBuffer.CurrentSnapshot.GetText(selectionStartLine.Start.Position,
selectionEndLine.End.Position - selectionStartLine.Start.Position);
string selectedText = textView.TextBuffer.CurrentSnapshot.GetText(selectionStart.Position,
selectionEnd.Position - selectionStart.Position);
var caretPositionWithinBlock = textView.GetCaretPosition() - selectionStartLine.Start.Position;
var nonSelectedTextLeftOffset = selectionStart.Position - selectionStartLine.Start.Position;
string textOffset = new string(' ', nonSelectedTextLeftOffset);
string duplicatedText = textOffset + selectedText;
string replacementText;
if (commentOriginal)
{
var commentedText = blockText.Comment();
replacementText = commentedText + Environment.NewLine + duplicatedText;
}
else
{
replacementText = blockText + Environment.NewLine + duplicatedText;
}
using (ITextEdit edit = textView.TextBuffer.CreateEdit())
{
edit.Replace(new Span(blockTextStart, blockText.Length), replacementText);
edit.Apply();
}
var firstDuplicatedTextLine = textView.GetLine(selectionEndLine.LineNumber + 1);
int newSelectionStart = firstDuplicatedTextLine.Start.Position + nonSelectedTextLeftOffset;
int newSelectionLength = Math.Min(selectedText.Length, textView.GetText().Length - newSelectionStart);
textView.Selection.Clear();
textView.SetSelection(newSelectionStart, newSelectionLength);
textView.MoveCaretTo(firstDuplicatedTextLine.Start.Position + caretPositionWithinBlock);
}
else
{
int selectionLastLineNumber = textView.Caret.ContainingTextViewLine.End.GetContainingLine().LineNumber;
int caretLineOffset = textView.GetCaretPosition() - textView.Caret.ContainingTextViewLine.Start.Position;
int areaStart = textView.Caret.ContainingTextViewLine.Start.Position;
int areaEnd = textView.Caret.ContainingTextViewLine.End.Position;
string text = textView.TextBuffer.CurrentSnapshot.GetText(areaStart, areaEnd - areaStart);
string replacementText;
if (commentOriginal)
{
replacementText = text.CommentText(text.IndexOfNonWhitespace(), true) + Environment.NewLine + text;
}
else
{
replacementText = text + Environment.NewLine + text;
}
using (ITextEdit edit = textView.TextBuffer.CreateEdit())
{
edit.Replace(new Span(areaStart, text.Length), replacementText);
edit.Apply();
}
var line = textView.GetLine(selectionLastLineNumber + 1);
textView.MoveCaretTo(line.Start.Position + caretLineOffset);
return;
}
}