/// <remarks>
/// Undo last operation
/// </remarks>
public void Undo()
{
// we clear all selection direct, because the redraw
// is done per refresh at the end of the action
// textArea.SelectionManager.SelectionCollection.Clear();
document.UndoStack.AcceptChanges = false;
document.Insert(offset, text);
// document.Caret.Offset = Math.Min(document.TextLength, Math.Max(0, oldCaretPos));
document.UndoStack.AcceptChanges = true;
}
void SetCommentAt(Document.Document document, string comment, SelectionManager selmgr, int y1, int y2)
{
firstLine = y1;
lastLine = y2;
for (int i = y2; i >= y1; --i)
{
LineSegment line = document.GetLineSegment(i);
if (selmgr != null && i == y2 && line.Offset == selmgr.StartOffset + selmgr.Length)
{
--lastLine;
continue;
}
string lineText = document.GetText(line.Offset, line.Length);
document.Insert(line.Offset, comment);
}
}
void InsertTabs(Document.Document document, SelectionManager selmgr, int y1, int y2)
{
string indentationString = GetIndentationString(document);
for (int i = y2; i >= y1; --i)
{
LineSegment line = document.GetLineSegment(i);
if (i == y2 && i == selmgr.EndPosition.Y && selmgr.EndPosition.X == 0)
{
continue;
}
// this bit is optional - but useful if you are using block tabbing to sort out
// a source file with a mixture of tabs and spaces
// string newLine = document.GetText(line.Offset,line.Length);
// document.Replace(line.Offset,line.Length,newLine);
document.Insert(line.Offset, indentationString);
}
}
void SetCommentAt(Document.Document document, int offsetStart, int offsetEnd, string commentStart, string commentEnd)
{
document.Insert(offsetEnd, commentEnd);
document.Insert(offsetStart, commentStart);
}
