@Override
	public void setMemento(Memento m) {
		this.buffer = ((MementoME) m).getBuffer();
		this.selection = ((MementoME) m).getSelection();
		this.pressePapier = ((MementoME) m).getPressePapier();
		this.setChanged();
		this.notifyObservers(this.buffer.getContenu());
		this.setChanged();
		this.notifyObservers(this.selection.getDebut());
	}