public void Undo(ITextBuffer target)
{
if (!done)
throw new InvalidOperationException("Command is already unapplied.");
target.SetCarets(after);
target.ReplaceText(textBefore, false);
target.SetCarets(before);
done = false;
}
public void Undo(ITextBuffer target)
{
if (!done)
throw new InvalidOperationException("not done");
for (int i = inner.Count - 1; i >= 0; i--)
inner[i].Undo(target);
target.SetCarets(before);
done = false;
}
public void Do(ITextBuffer target)
{
if (done)
throw new InvalidOperationException("already done");
foreach (ICommand r in inner)
r.Do(target);
target.SetCarets(after);
done = true;
}
public void Do(ITextBuffer target)
{
if (done)
throw new InvalidOperationException("Command is already applied.");
target.SetCarets(before);
target.ReplaceText(textAfter, autoIndent);
after = target.GetCarets();
target.Mark = target.Point;
done = true;
}
