AvalonStudio.TextEditor.Document.UndoStack.FileModified C# (CSharp) Method

		private void FileModified(int newElementsOnUndoStack)
		{
			if (elementsOnUndoUntilOriginalFile == int.MinValue)
				return;

			elementsOnUndoUntilOriginalFile += newElementsOnUndoStack;
			if (elementsOnUndoUntilOriginalFile > undostack.Count)
				elementsOnUndoUntilOriginalFile = int.MinValue;

			// don't call RecalcIsOriginalFile(): wait until end of undo group
		}