public void DeleteLayout(int index)
{
PictureLayout pictureLayout = Layouts[index];
watched = false;
if (pictureLayout is StandardLayout standardLayout)
{
standardLayout.Deactivate();
}
if (PaintAgent.CurrentLayout == pictureLayout)
{
PaintAgent.CurrentLayout = null;
}
Layouts.RemoveAt(index);
watched = true;
UndoManager.AddUndoData(new CMD_RecoverLayout(pictureLayout, this, index));
}